10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2019

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 000-24939

 EAST WEST BANCORP, INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation or organization)

95-4703316

(I.R.S. Employer Identification No.)

135 North Los Robles Ave., 7th Floor, Pasadena, California, 91101

(Address of principal executive offices) (Zip Code)

(626) 768-6000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.001 Par Value	EWBC	NASDAQ Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒  No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐  No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒  No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐	Smaller reporting company	☐
Non-accelerated filer	☐			Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐  No ☒

The aggregate market value of the registrant’s common stock held by non-affiliates was approximately $6,765,665,370 (based on the June 30, 2019 closing price of Common Stock of $46.77 per share). As of January 31, 2020, 145,625,565 shares of East West Bancorp, Inc. Common Stock were outstanding.

DOCUMENT INCORPORATED BY REFERENCE

 Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A relating to its 2020 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K.

EAST WEST BANCORP, INC.

2019 ANNUAL REPORT ON FORM 10-K

TABLE OF CONTENTS

			Page
PART I			3
	Forward-Looking Statements		3
	Item 1.	Business	5
	Item 1A.	Risk Factors	15
	Item 1B.	Unresolved Staff Comments	25
	Item 2.	Properties	25
	Item 3.	Legal Proceedings	25
	Item 4.	Mine Safety Disclosures	25
PART II			26
	Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	26
	Item 6.	Selected Financial Data	28
	Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
	Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	78
	Item 8.	Financial Statements and Supplementary Data	79
	Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	159
	Item 9A.	Controls and Procedures	159
	Item 9B.	Other Information	161
PART III			161
	Item 10.	Directors, Executive Officers and Corporate Governance	161
	Item 11.	Executive Compensation	161
	Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	162
	Item 13.	Certain Relationships and Related Transactions and Director Independence	162
	Item 14.	Principal Accountant Fees and Services	162
PART IV			163
	Item 15.	Exhibits and Financial Statement Schedules	163
	Item 16.	Form 10-K Summary	165
GLOSSARY OF ACRONYMS			166
SIGNATURES			167

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PART I

Forward-Looking Statements

This Annual Report on Form 10-K (“this Form 10-K”) contains certain forward-looking information about us that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts. These statements relate to the Company’s financial condition, results of operations, plans, objectives, future performance or business. They usually can be identified by the use of forward-looking language, such as “likely result in,” “expects,” “anticipates,” “estimates,” “forecasts,” “projects,” “intends to,” “assumes,” or may include other similar words or phrases, such as “believes,” “plans,” “trend,” “objective,” “continues,” “remains,” or similar expressions, or future or conditional verbs, such as “will,” “would,” “should,” “could,” “may,” “might,” “can,” or similar verbs, and the negative thereof. You should not place undue reliance on these statements, as they are subject to risks and uncertainties, including, but not limited to, those described in the documents incorporated by reference. When considering these forward-looking statements, you should keep in mind these risks and uncertainties, as well as any cautionary statements the Company may make. Moreover, you should treat these statements as speaking only as of the date they are made and based only on information then actually known to the Company.

There are a number of important factors that could cause future results to differ materially from historical performance and these forward-looking statements. Factors that might cause such differences, some of which are beyond the Company’s control, include, but are not limited to:

• the changes and effects thereof in trade, monetary and fiscal policies and laws, including the ongoing trade dispute between the United States (“U.S.”) and the People’s Republic of China;

• the Company’s ability to compete effectively against other financial institutions in its banking markets;

• success and timing of the Company’s business strategies;

• the Company’s ability to retain key officers and employees;

• impact on the Company’s funding costs, net interest income and net interest margin due to changes in key variable market interest rates, competition, regulatory requirements and the Company’s product mix;

• changes in the Company’s costs of operation, compliance and expansion;

• the Company’s ability to adopt and successfully integrate new technologies into its business in a strategic manner;

• impact of benchmark interest rate reform in the U.S. that resulted in the Secured Overnight Financing Rate (“SOFR”) selected as the preferred alternative reference rate to the London Interbank Offered Rate (“LIBOR”);

• impact of failure in, or breach of, the Company’s operational or security systems or infrastructure, or those of third parties with whom the Company does business, including as a result of cyber attacks; and other similar matters which could result in, among other things, confidential and/or proprietary information being disclosed or misused;

• adequacy of the Company’s risk management framework, disclosure controls and procedures and internal control over financial reporting;

• future credit quality and performance, including the Company’s expectations regarding future credit losses and allowance levels;

• impact of adverse changes to the Company’s credit ratings from major credit rating agencies;

• impact of adverse judgments or settlements in litigation;

• changes in the commercial and consumer real estate markets;

• changes in consumer spending and savings habits;

• changes in the U.S. economy, including inflation, deflation, employment levels, rate of growth and general business conditions;

• government intervention in the financial system, including changes in government interest rate policies;

• impact on the Company’s international operations due to political developments, disease pandemics, wars or other hostilities that may disrupt or increase volatility in securities or otherwise affect economic conditions;

• changes in laws or the regulatory environment including regulatory reform initiatives and policies of the U.S. Department of Treasury, the Board of Governors of the Federal Reserve Board System (“Federal Reserve”), the Federal Deposit Insurance Corporation (“FDIC”), the Office of the Comptroller of the Currency, the U.S. Securities and Exchange Commission (“SEC”), the Consumer Financial Protection Bureau (“CFPB”) and the California Department of Business Oversight (“DBO”) - Division of Financial Institutions;

• impact of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) on the Company’s business, business practices, cost of operations and executive compensation;

• heightened regulatory and governmental oversight and scrutiny of the Company’s business practices, including dealings with consumers;

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• impact of reputational risk from negative publicity, fines and penalties and other negative consequences from regulatory violations and legal actions and from the Company’s interactions with business partners, counterparties, service providers and other third parties;

• impact of regulatory enforcement actions;

• changes in accounting standards as may be required by the Financial Accounting Standards Board (“FASB”) or other regulatory agencies and their impact on critical accounting policies and assumptions;

• changes in income tax laws and regulations;

• impact of other potential federal tax changes and spending cuts;

• the Company’s capital requirements and its ability to generate capital internally or raise capital on favorable terms;

• impact on the Company’s liquidity due to changes in the Company’s ability to receive dividends from its subsidiaries;

• any future strategic acquisitions or divestitures;

• continuing consolidation in the financial services industry;

• changes in the equity and debt securities markets;

• fluctuations in the Company’s stock price;

• fluctuations in foreign currency exchange rates;

• a recurrence of significant turbulence or disruption in the capital or financial markets, which could result in, among other things, a reduction in the availability of funding or increases in funding costs, a reduction in investor demand for mortgage loans and declines in asset values and/or recognition of other-than-temporary impairment (“OTTI”) on securities held in the Company’s available-for-sale (“AFS”) investment securities portfolio; and

• impact of natural or man-made disasters or calamities, such as wildfires, or conflicts or other events that may directly or indirectly result in a negative impact on the Company’s financial performance.

For a more detailed discussion of some of the factors that might cause such differences, see Item 1A. Risk Factors presented elsewhere in this report. The Company does not undertake, and specifically disclaims any obligation to update or revise any forward-looking statements to reflect the occurrence of events or circumstances after the date of such statements except as required by law.

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ITEM 1.  BUSINESS 

Organization

East West Bancorp, Inc. (referred to herein on an unconsolidated basis as “East West” and on a consolidated basis as the “Company”, “we”, or “EWBC”) is a bank holding company incorporated in Delaware on August 26, 1998 and is registered under the Bank Holding Company Act of 1956, as amended (“BHC Act”). The Company commenced business on December 30, 1998 when, pursuant to a reorganization, it acquired all of the voting stock of East West Bank (the “Bank”), which became its principal asset. In addition to the Bank, East West has six subsidiaries as of December 31, 2019 that were established as statutory business trusts for the purpose of issuing junior subordinated debt to third party investors. East West also owns East West Insurance Services, Inc. (“EWIS”). In 2017, the Company sold the insurance brokerage business of EWIS, and EWIS remains a subsidiary of East West and continues to maintain its insurance broker license. In 2019, East West acquired Enstream Capital Markets, LLC, a private broker dealer and also established East West Investment Management LLC, a registered investment adviser. Both Enstream Capital Markets, LLC (subsequently renamed as East West Markets, LLC) and East West Investment Management LLC are wholly-owned subsidiaries of East West.

East West’s principal business is to serve as a holding company for the Bank and other banking or banking-related subsidiaries that East West may establish or acquire. As a legal entity separate and distinct from its subsidiaries, East West’s principal source of funds is, and will continue to be, dividends that may be paid by its subsidiaries. As of December 31, 2019, the Company had $44.20 billion in total assets, $34.42 billion in total loans (including loans held-for-sale, net of allowance), $37.32 billion in total deposits and $5.02 billion in total stockholders’ equity.

As of December 31, 2019, the Bank has four wholly-owned subsidiaries. The first subsidiary, East-West Investment, Inc., primarily acts as a trustee in connection with real estate secured loans. The second subsidiary, E-W Services, Inc., is a California corporation organized by the Bank in 1977 to hold properties used by the Bank in its operations. The third subsidiary is East West Bank (China) Limited, a banking subsidiary in China. The remaining subsidiary is East West Velo Technology Service (Beijing) Limited Company, which provides technological support for the Bank’s global digital banking services.

On March 17, 2018, the Bank completed the sale of its eight Desert Community Bank (“DCB”) branches located in the High Desert area of Southern California to Flagstar Bank, a wholly-owned subsidiary of Flagstar Bancorp, Inc. The sale resulted in a pretax gain of $31.5 million during the year ended December 31, 2018, which was reported as Net gain on sale of business on the Consolidated Statement of Income.

The Bank continues to develop its international banking presence with its network of overseas branches and representative offices that include five full-service branches in Greater China, located in Hong Kong, Shanghai, Shantou and Shenzhen. The Bank has two branches in Shanghai with one in the Shanghai Pilot Free Trade Zone. The Bank also has four representative offices in Greater China, located in Beijing, Chongqing, Guangzhou and Xiamen. In addition to facilitating traditional letters of credit and trade financing to businesses, these representative offices allow the Bank to assist existing clients and to develop new business relationships. Through these branches and offices, the Bank is focused on growing its cross-border client base between the U.S. and Greater China, helping U.S. based businesses expand in Greater China and companies based in Greater China pursue business opportunities in the U.S.

The Bank continues to explore opportunities to establish other foreign offices, subsidiaries, strategic investments and partnerships to expand its international banking capabilities and to capitalize on long-term cross-border business opportunities between the U.S. and Greater China.

Banking Services

As of December 31, 2019, the Bank was the fourth largest independent commercial bank headquartered in California based on total assets. The Bank is the largest bank in the U.S. focused on the financial service needs of individuals and businesses that operate both in the U.S. and Greater China. The Bank also has a strong focus on the Chinese-American community. Through its network of over 125 banking locations in the U.S. and Greater China, the Bank provides a wide range of personal and commercial banking services to businesses and individuals. The Bank provides multilingual services to its customers in English, Chinese, Spanish and Vietnamese. The Bank also offers a variety of deposit products that include personal and business checking and savings accounts, money market, time deposits and also offers foreign exchange and wealth management services. The Bank’s lending activities include commercial and residential real estate, lines of credit, construction, trade finance, letters of credit, commercial business, affordable housing lending, asset-based lending and equipment financing. In addition, the Bank is focused on providing financing to clients in need of a financial bridge to facilitate their business transactions between the U.S. and Greater China.

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Operating Segments

The Bank’s three operating segments, (1) Consumer and Business Banking, (2) Commercial Banking and (3) Other, are based on the Bank’s core strategy. The Consumer and Business Banking segment primarily provides financial products and services to consumer and commercial customers through the Company’s domestic branch network. The Commercial Banking segment primarily generates commercial loans and deposits. The remaining centralized functions, including the corporate treasury activities of the Company and eliminations of inter-segment amounts, have been aggregated and included in the Other segment. For complete discussion and disclosure, see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) — Operating Segment Results and Note 21 — Business Segments to the Consolidated Financial Statements.

Market Area and Competition

The Bank operates in a highly competitive environment. The Company faces competition from domestic and foreign lending institutions and numerous other providers of financial services. Competition is based on a number of factors including, among others, customer service, quality and range of products and services offered, reputation, interest rates on loans and deposits, lending limits and customer convenience. Competition also varies based on the types of customers and locations served. The Company has the leading banking market share among the Chinese-American community, and maintains a differentiated presence within selected markets by providing cross-border expertise to customers in a number of industry specializations between the U.S and Greater China.

The Bank believes that its customers benefit from the Bank’s understanding of the Greater China markets through its physical presence, corporate and organizational ties in Greater China, as well as the Bank’s international banking products and services. The Bank believes that this approach, combined with its senior managements’ and Board of Directors’ extensive ties to Chinese business opportunities and Chinese-American communities, provides the Bank with a competitive advantage. The Bank utilizes its presence in Greater China to identify and build corporate relationships, which the Bank may leverage to create business opportunities in California and other U.S. markets.

While the Company believes it is well positioned within a highly competitive industry, the industry could become even more competitive as a result of legislative, regulatory, economic, and technological changes, as well as continuing consolidation.

Supervision and Regulation

Overview

East West and the Bank are subject to extensive and comprehensive regulation under U.S. federal and state laws. Regulation and supervision by the federal and state banking agencies are intended primarily for the protection of depositors, the Deposit Insurance Fund (“DIF”) administered by the FDIC, consumers and the banking system as a whole, and not for the protection of our investors. As a bank holding company, East West is subject to primary inspection, supervision, regulation, and examination by the Federal Reserve under the BHC Act. The Bank is regulated, supervised, and examined by the Federal Reserve, the DBO, and, with respect to consumer laws, the CFPB. As insurer of the Bank’s deposits, the FDIC has back-up examination authority as well. In addition, the Bank is regulated by certain foreign regulatory agencies in international jurisdictions where we now, or may in the future wish to conduct business, including Greater China and Hong Kong.

The Company is also subject to the disclosure and regulatory requirements of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934 (the “Exchange Act”), as amended, both as administered by the SEC. Our common stock is listed on the NASDAQ Global Select Market under the trading symbol “EWBC” and is subject to NASDAQ rules for listed companies. The Company is also subject to the accounting oversight and corporate governance of the Sarbanes-Oxley Act of 2002.

Described below are material elements of selected laws and regulations applicable to East West and the Bank. The descriptions are not intended to be complete and are qualified in their entirety by reference to the full text of the statutes and regulations described. A change in applicable statutes, regulations or regulatory policies may have a material effect on the Company’s business.

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East West

As a bank holding company and pursuant to its election of the financial holding company status, East West is subject to regulations and examinations by the Federal Reserve under the BHC Act. The BHC Act provides a federal framework for the supervision and regulation of all domestic and foreign companies that control a bank and the subsidiaries of such companies. The BHC Act and other federal statutes grant the Federal Reserve authority to, among other things:

• require periodic reports and such additional information as the Federal Reserve may require in its discretion;

• require the Company to maintain certain levels of capital and, under the Dodd-Frank Act, limit the ability of bank holding companies to pay dividends or bonuses unless their capital levels exceed the capital conservation buffer (see Item 1. Business — Supervision and Regulation — Capital Requirements);

• require bank holding companies to serve as a source of financial and managerial strength to subsidiary banks and commit resources, as necessary, to support each subsidiary bank, including at times when bank holding companies may not be inclined to do so, the failure to do so generally be considered by the Federal Reserve to be an unsafe and unsound banking practice or a violation of Federal Reserve regulations or both;

• restrict dividends and other distributions from subsidiary banks to their parent bank holding companies;

• terminate an activity or terminate control of or liquidate or divest certain nonbank subsidiaries, affiliates or investments if the Federal Reserve believes that the activity or the control of the nonbank subsidiary or affiliate constitutes a serious risk to the financial safety, soundness or stability of the bank holding company; and if the activity, ownership, or control is inconsistent with the purposes of the BHC Act;

• regulate provisions of certain bank holding company debt, including the authority to impose interest ceilings and reserve requirements on such debt and require prior approval to purchase or redeem the Company’s securities in certain situations;

• approve in advance senior executive officer or director changes and prohibit (under certain circumstances) golden parachute payments to officers and employees, including change in control agreements and new employment agreements, that are contingent upon termination; and

• approve in advance acquisitions of and mergers with bank holding companies, banks and other financial companies, and consider certain competitive, management, financial, financial stability and other factors in granting these approvals. DBO approvals may also be required for certain acquisitions and mergers.

East West’s election to be a financial holding company as permitted under the Gramm-Leach-Bliley Act of 1999 (“GLBA”), allows East West generally to engage in any activity, or acquire and retain the shares of a company engaged in any activity that the Federal Reserve has determined to be financial in nature or incidental or complementary to activities that are financial in nature without prior Federal Reserve approval. Activities that are considered to be financial in nature include securities underwriting and dealing, insurance agency and underwriting, merchant banking activities and activities that the Federal Reserve, in consultation with the Secretary of the U.S. Treasury, determines to be financial in nature or incidental to such financial activity. “Complementary activities” are activities that the Federal Reserve determines upon application to be complementary to a financial activity and do not pose a safety and soundness risk. To maintain financial holding company status, a financial holding company and all of its depository institution subsidiaries must be “well capitalized”, “well managed” and in satisfactory compliance with the Community Reinvestment Act (“CRA”). A depository institution subsidiary is considered to be “well capitalized” if it satisfies the requirements for this status discussed in the sections captioned “Capital Requirements” and “Prompt Corrective Action,” included elsewhere under this item. A depository institution subsidiary is considered “well managed” if it received a composite rating and a management rating of at least “satisfactory” in its most recent examination. See the section captioned “Community Reinvestment Act” included elsewhere under this item. As of December 31, 2019, East West is a financial holding company and has financial subsidiaries, as discussed in Item 1. Business — Organization.

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The Bank and its Subsidiaries

East West Bank is a California state-chartered bank, a member of the Federal Reserve and a bank whose deposits are insured by the FDIC. The Bank’s foreign operations are regulated and supervised by the Federal Reserve and the DBO, as well as by regulatory authorities in the host countries in which the Bank’s overseas offices reside. Specific federal and state laws and regulations that are applicable to banks regulate, among other things, the scope of their business, their investments, their reserves against deposits, the timing of the availability of deposited funds, and the nature and amount of collateral for certain loans. The regulatory structure also gives the bank regulatory agencies extensive discretion to impose various restrictions on management or operations and to issue policies and guidance in connection with their supervisory and enforcement activities and examination policies. California law permits state chartered commercial banks to engage in any activity permissible for national banks, unless such activity is expressly prohibited by state law. Therefore, the Bank may form subsidiaries to engage in the many so-called “closely related to banking” or “nonbanking” activities commonly conducted by national banks in operating subsidiaries, and further, pursuant to the GLBA, the Bank may conduct certain “financial” activities in a subsidiary to the same extent permitted for a national bank, provided the Bank is and remains “well capitalized,” “well managed” and in “satisfactory” compliance with the CRA.

Regulation of Subsidiaries/Branches

The Bank’s foreign-based subsidiary, East West Bank (China) Limited, is subject to applicable foreign laws and regulations, such as those implemented by the China Banking and Insurance Regulatory Commission. Nonbank subsidiaries are subject to additional or separate regulation and supervision by other state, federal and self-regulatory bodies. The East West Bank Hong Kong branch is subject to applicable foreign laws and regulations, such as those implemented by the Hong Kong Monetary Authority and the Securities and Futures Commission of Hong Kong.

Economic Growth, Regulatory Relief, and Consumer Protection Act

The Dodd-Frank Act, enacted in 2010, enhanced regulation and supervision of the financial services industry and made other sweeping changes in the U.S. financial system. In May 2018, the U.S. Congress enacted the Economic Growth, Regulatory Relief, and Consumer Protection Act, (“EGRRCPA”), which amended provisions in the Dodd-Frank Act and other statutes administered by the Federal Reserve. The changes can be grouped into several areas that impact us:

1. Regulatory relief for bank holding companies and state member banks with assets between $10 billion and $50 billion. We are among the bank holding companies and banks in this range. Dodd-Frank required that bank holding companies in this size range establish a risk committee that satisfied certain requirements and conduct an annual stress-test. The stress-test requirement was extended to state member banks (and other insured depository institutions) as well. EGRRCPA lifted the size threshold for a formal risk committee from $10 billion to $50 billion, but the Federal Reserve will still examine the risk management practices of companies with assets in the $10 billion to $50 billion range for consistency with safety and soundness and prudent practices. With respect to stress-testing by the Bank, EGRRCPA raised the asset size threshold for required testing from $10 billion to $250 billion. Regarding the Company, the Federal Reserve in rulemaking (based on broad EGRRCPA authority) lifted the asset size threshold from $10 billion to $100 billion for required stress-testing bank holding companies. Accordingly, neither the Company nor the Bank is now required to conduct stress-tests.

2. Regulatory relief for community banking organizations. Banks and bank holding companies with less than $10 billion in assets — that is, institutions smaller than the Company and the Bank — receive additional relief under EGRRCPA that may give them competitive advantages. Among other things, these banks and bank holding companies are generally exempt from the Volcker Rule, and they may maintain a new Community Bank Leverage Ratio of 9% in lieu of meeting existing risk-based capital ratio and leverage ratio requirements.

3. Regulatory relief for larger bank holding companies. Our larger competitors also receive a degree of regulatory relief from previous requirements. Bank holding companies designated as global systemically important banking organizations and those with more than $250 billion in assets are still automatically subject to enhanced regulation. However, bank holding companies with between $100 billion and $250 billion in assets are automatically subject only to supervisory stress tests, while the Federal Reserve has discretion to apply other individual enhanced prudential provisions to these companies. Bank holding companies with assets between $50 billion and $100 billion will no longer be subject to enhanced regulation, except for the risk committee requirement. In addition, EGRRCPA relaxes leverage requirements for large custody banks and allows certain municipal bonds to be counted toward large bank holding companies’ liquidity requirements.

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Capital Requirements

The federal banking agencies have imposed risk-based capital adequacy guidelines intended to ensure that banking organizations maintain capital that is commensurate with the degree of risk associated with their operations. In July 2013, the federal banking agencies adopted final rules (the “Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banking organizations. The Basel III Capital Rules revised the definitions and the components of regulatory capital, in part through the introduction of a Common Equity Tier 1 (“CET1”) capital requirement and a related regulatory capital ratio of CET1 to risk-weighted assets, restricted the type of instruments that may be recognized in Tier 1 and 2 capital (including the phase out of trust preferred securities from Tier 1 capital for bank holding companies). The Basel III Capital Rules also prescribed a new standardized approach for risk weighting assets and expanded the risk weighting categories to a larger and more risk-sensitive number of categories that affect the denominator in banking institutions’ regulatory capital ratios.

Under the Basel III Capital Rules, to be considered adequately capitalized, the Company and the Bank are required to maintain minimum capital ratios of 4.5% CET1 to risk-weighted assets, 6.0% Tier 1 capital to risk-weighted assets, 8.0% total capital (Tier 1 plus Tier 2) to risk-weighted assets and a 4.0% Tier 1 leverage ratio. The Basel III Capital Rules also introduced a “capital conservation buffer” of 2.5% that fully phased in on January 1, 2019, that is composed entirely of CET1, on top of these minimum risk-weighted asset ratios. The capital conservation buffer is designed to absorb losses during periods of economic stress. Banking institutions with a ratio of CET1 to risk-weighted assets above the minimum but below the capital conservation buffer will face constraints on dividends, equity repurchases and discretionary bonus payments based on the amount of the shortfall. To avoid constraints, a banking organization must maintain the following capital ratios (after any distribution): (i) CET1 to risk-weighted assets more than 7.0%, (ii) Tier 1 capital to risk-weighted assets more than 8.5% and (iii) total capital to risk-weighted assets more than 10.5%.

With respect to the Bank, the Basel III Capital Rules also resulted in changes to the Prompt Corrective Action (“PCA”) regulations pursuant to Section 38 of the Federal Deposit Insurance Act (“FDIA”), as discussed below under the Prompt Corrective Action section.

As of December 31, 2019, the Company’s and the Bank’s capital ratios exceeded the minimum capital adequacy guideline percentage requirements of the federal banking agencies for “well capitalized” institutions under the Basel III capital rules on a fully phased-in basis. For additional discussion and disclosure see Item 7. MD&A — Regulatory Capital and Ratios and Note 20 — Regulatory Requirements and Matters to the Consolidated Financial Statements in this Form 10-K.

Recent Regulatory Capital-Related Developments

From time to time, the regulatory agencies propose changes and amendments to, and issue interpretations of, risk-based capital guidelines and related reporting instructions. Such proposals and interpretations could, if implemented in the future, affect our reported capital ratios.

Pursuant to the EGRRCPA, the federal banking agencies issued a final rule in July 2019 (the “Simplified Capital Rule”) to reduce regulatory compliance burden by simplifying certain risk-based and leverage capital requirements of the Basel III Capital Rule for non-advanced approaches banking organizations (i.e., banking organizations with less than $250 billion in total consolidated assets or with less than $10 billion of on-balance sheet foreign exposures), including the Company and the Bank. Among other things, the final rule simplified the existing Basel III Capital Rules by: (1) setting a 25% CET1 capital reduction threshold for mortgage servicing assets, certain deferred tax assets arising from temporary differences, investments in the capital of unconsolidated financial institutions, resulting in potentially fewer deductions from CET1, together with revisions to the risk-weight treatment for investments in the capital of unconsolidated financial institutions; and (2) simplifying the limits on the amount of a third-party minority interest in a consolidated subsidiary that could be included in regulatory capital. The Simplified Capital Rule also makes technical amendments to, and clarifies certain aspects of, the agencies’ capital rule for non-advanced approaches banking organizations. The Simplified Capital rule is effective on January 1, 2020. Application of the Simplified Capital Rule to our consolidated balance sheet did not have a significant impact on the capital ratios of the Company and the Bank.

EGRRCPA also amended the capital requirements for certain acquisition, development and construction (“ADC”) loans. The Basel III Capital Rule required that an institution risk weight commercial real estate (“CRE”) loans that did not meet certain prerequisites, among them a requirement that a borrower contribute cash or marketable securities or pay development expenses out of pocket equal to at least 15% of the equity in the financed project, at 150%, rather than 100%. EGRRCPA narrowed the scope of ADC loans subject to the higher risk weight in several ways, including a provision that allows a borrower to make the 15% equity contribution in the form of real estate or improvements.

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In December 2018, the regulatory agencies approved a final rule to address changes to credit loss accounting, including banking organizations’ implementation of the new Accounting Standards Update (“ASU”) 2016-13 Financial Instruments— Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments, which introduces the current expected credit losses (“CECL”) methodology. See Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Form 10-K for additional information. The final rule provides banking organizations with the option to phase in over a three-year period the day-one adverse effects on regulatory capital upon the adoption of ASU 2016-13. In addition, it revises the regulatory capital rule, stress testing rules, disclosure requirements to reflect CECL and amends other regulations that reference credit loss allowances. The final rule is applicable to banking organizations that are subject to the regulatory capital rule, including the Company and the Bank, and is effective on April 1, 2019 upon banking organizations’ adoption of ASU 2016-13.

In December 2017, the Basel Committee on Banking Supervision completed updates to the Basel III Capital Rules, a process sometimes referred to as Basel IV. These changes to the regulatory framework are intended to restore credibility in the calculation of risk weighted assets. Changes potentially applicable to us include: (1) enhancement of the robustness and risk sensitivity of the standardized approaches for credit risk, credit valuation adjustment and operational risk, which will facilitate the comparability of banks’ capital ratios; and (2) constraints on the use of internally modeled approaches. Other changes apply to advanced approaches institutions and global systemically important banks. The Basel Committee on Banking Supervision intends that these standards become effective on January 1, 2022. The federal banking agencies have announced their support for these changes and have said that they will consider appropriate application of these revisions to the regulatory capital rules. Any changes to Basel III Capital Rules that are based on the Basel Committee’s reforms must go through the federal banking agencies’ standard notice-and-comment rulemaking process. The agencies have not begun the process and have not indicated when they may do so.

Prompt Corrective Action

The FDIA, as amended, requires federal banking agencies to take PCA with respect to depository institutions that do not meet minimum capital requirements. The FDIA includes the following five capital tiers: “well capitalized”, “adequately capitalized”, “undercapitalized”, “significantly undercapitalized” and “critically undercapitalized.” A depository institution’s capital tier will depend upon how its capital levels compare with various relevant capital measures and certain other factors, as established by regulation. The Basel III Capital Rules revised the PCA requirements effective January 1, 2015. Under the revised PCA provisions of the FDIA, an insured depository institution generally is classified in the following categories based on the capital measures indicated:

	Risk-Based Capital Ratios
PCA Category	Total Capital	Tier 1 Capital	CET1 Leverage	Tier 1 Leverage
Well capitalized	≥ 10%	≥ 8%	≥ 6.5%	≥ 5%
Adequately capitalized	≥ 8%	≥ 6%	≥ 4.5%	≥ 4%
Undercapitalized	< 8%	< 6%	< 4.5%	< 4%
Significantly undercapitalized	< 6%	< 4%	< 3.0%	< 3%
Critically undercapitalized	Tangible Equity/Total Assets ≤ 2%

An institution may be downgraded to, or deemed to be in, a capital category that is lower than indicated by its capital ratios, if it is determined to be in an unsafe or unsound condition or if it receives an unsatisfactory examination rating with respect to certain matters. A bank’s capital category is determined solely for the purpose of applying PCA regulations and the capital category may not constitute an accurate representation of the bank’s overall financial condition or prospects for other purposes.

The FDIA generally prohibits a depository institution from making any capital distributions (including payment of any dividend) or paying any management fee to its parent holding company, if the depository institution would thereafter be “undercapitalized”. “Undercapitalized” institutions are subject to growth limitations and are required to submit capital restoration plans. If a depository institution fails to submit an acceptable plan, it is treated as if it is “significantly undercapitalized”. “Significantly undercapitalized” depository institutions may be subject to a number of requirements and restrictions, including orders to sell sufficient voting stock to become “adequately capitalized”, requirements to reduce total assets, cessation of receipt of deposits from correspondent banks and/or restrictions on interest rates paid on deposits. “Critically undercapitalized” institutions are subject to the appointment of a receiver or conservator. The FDIA also permits only “well capitalized” insured depository institutions to accept brokered deposits, but an “adequately capitalized” institution may apply to the FDIC for a waiver of this restriction.

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Consumer Financial Protection Bureau Supervision

The Dodd-Frank Act established the CFPB, which has the authority to implement, examine and enforce compliance with federal consumer financial laws that apply to banking institutions and certain other companies. The CFPB has exclusive authority to examine insured depository institutions with assets exceeding $10 billion (such as the Bank) and their affiliates and may also take enforcement action. The CFPB is focused on:

• risks to consumers and compliance with federal consumer financial laws when it evaluates the policies and practices of a financial institution;

• unfair, deceptive, or abusive acts or practices, which the Dodd-Frank Act empowers the CFPB to prevent through rulemaking, enforcement and examination;

• rulemaking to implement various federal consumer statutes such as the Home Mortgage Disclosure Act, Truth in Lending Act, Real Estate Settlement Procedures Act, Electronic Fund Transfer Act, Equal Credit Opportunity Act and Fair Credit Billing Act; and

• the markets in which firms operate and risks to consumers posed by activities in those markets.

The statutes and regulations that the CFPB enforces mandate certain disclosure and other requirements, and regulate the manner in which financial institutions must deal with consumers when taking deposits, making loans, collecting payments on loans and providing other services. Failure to comply with these laws can subject the Bank to various penalties, including, but not limited to, enforcement actions, injunctions, fines or criminal penalties, punitive damages or restitution to consumers, and the loss of certain contractual rights. The Bank and the Company are also subject to federal and state laws prohibiting unfair or fraudulent business practices, untrue or misleading advertising and unfair competition.

Federal Home Loan Bank and the Federal Reserve’s Reserve Requirements

The Bank is a member of the Federal Home Loan Bank (“FHLB”) of San Francisco. As a FHLB member, the Bank is required to own a certain amount of capital stock in the FHLB. The Bank may also access the FHLB for both short-term and long-term secured credit.

The Federal Reserve requires all depository institutions to maintain reserves at specified levels against their transaction accounts either in the form of vault cash or an interest-bearing account at the Federal Reserve Bank, or a pass-through account as defined by the Federal Reserve. The Bank is also a member bank and stockholder of the Federal Reserve Bank of San Francisco (“FRB”). As of December 31, 2019, the Bank was in compliance with these requirements.

    Dividends and Other Transfers of Funds

The principal source of income of East West is dividends received from the Bank. The Bank is subject to various statutory and regulatory restrictions on its ability to pay dividends. In addition, the banking agencies have an authority to prohibit or limit the Bank from paying dividends, depending upon the Bank’s financial condition, if such payment is deemed to constitute an unsafe or unsound practice. Furthermore, under the federal PCA regulations, the Federal Reserve or FDIC may prohibit a bank holding company from paying any dividends if the holding company’s bank subsidiary is classified as “undercapitalized” or below. It is the Federal Reserve’s policy that bank holding companies should generally pay dividends on common stock only if the organization’s net income available to common stockholders over the past year has been sufficient to fully fund the dividends, and if the prospective rate of earnings retention appears consistent with the organization’s capital needs, asset quality and overall financial condition. It is also the Federal Reserve’s policy that bank holding companies should not maintain dividend levels that undermine the company’s ability to be a financial source of strength to its banking subsidiaries. The Federal Reserve requires bank holding companies to continuously review their dividend policy in light of their organizations’ financial condition and compliance with regulatory capital requirements, and has discouraged payment ratios that are at maximum allowable levels, unless both asset quality and capital are very strong.

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Transactions with Affiliates and Insiders

Pursuant to Sections 23A and 23B of the Federal Reserve Act, as implemented by the Federal Reserve’s Regulation W, banks are subject to restrictions that strictly limit their ability to engage in transactions with their affiliates, including their parent bank holding companies. Regulations promulgated by the Federal Reserve limit the types, terms and amounts of these transactions and generally require the transactions to be on an arm's-length basis. In general, these regulations require that “covered transactions” typically transactions that create credit risk for a bank between a subsidiary bank and any one affiliate (e.g., its parent company or the non-bank subsidiaries of the bank holding company) are limited to 10% of the subsidiary bank's capital and surplus and, with respect to the aggregate of all covered transactions with all affiliates, the limit is 20% of the subsidiary bank's capital and surplus. The Dodd-Frank Act treats derivative transactions resulting in credit exposure to an affiliate as covered transactions. In addition, East West and other affiliates may not borrow from, or enter into other credit transactions with the Bank or its operating subsidiaries, unless the loans or other credit transactions are secured by specified amounts of collateral. In addition, the Volcker Rule under the Dodd-Frank Act establishes certain prohibitions, restrictions and requirements (known as “Super 23A” and “Super 23B”) on transactions between a covered fund and a banking entity that serves as an investment manager, investment adviser, organizer and offeror, or sponsor with respect to that covered fund, regardless of whether the banking entity has an ownership interest in the fund.

Federal law also limits a bank's authority to extend credit to its directors, executive officers and 10% shareholders, as well as to entities controlled by such persons. Among other things, extensions of credit to insiders are required to be made on terms that are substantially the same as, and follow credit underwriting procedures that are not less stringent than, those prevailing for comparable transactions with unaffiliated persons. The terms of such extensions of credit may not involve more than the normal risk of repayment or present other unfavorable features and may not exceed certain limitations on the amount of credit extended to such persons, individually and in the aggregate, which limits are based, in part, on the amount of the bank's capital.

Community Reinvestment Act

Under the terms of the CRA as implemented by Federal Reserve regulations, an insured depository institution has a continuing and affirmative obligation to help serve the credit needs of its communities, including the extension of credit to low to moderate-income neighborhoods. When evaluating a bank’s performance under the applicable performance criteria, the FDIC assigns a rating of “outstanding”, “satisfactory”, “needs to improve” or “substantial noncompliance”. The Federal Reserve periodically evaluates the CRA performance of state member banks and takes this performance into account when reviewing applications to expand branches, relocate, add subsidiaries and affiliates, expand into new financial activities and merge with or purchase other financial institutions. Unsatisfactory CRA performance may result in the denial of such applications.

FDIC Deposit Insurance Assessments

The FDIC insures the Bank’s customer deposits through the DIF up to $250,000 for each depositor, per FDIC-insured bank, per ownership category. The DIF is funded mainly through quarterly assessments on member banks. The Dodd-Frank Act revised the FDIC's fund management authority by setting requirements for the Designated Reserve Ratio (reserve ratio or “DRR”) that the DIF must meet and redefining the assessment base, which is used to calculate banks' quarterly assessments. The reserve ratio is the DIF balance divided by estimated insured deposits. The Bank’s DIF quarterly assessment is calculated by multiplying its assessment base, which is defined as the average consolidated total assets less the average tangible equity of the Bank by the applicable assessment rate. The initial base assessment rate is assigned based on an institution’s capital adequacy, asset quality, management, earnings, liquidity and sensitivity to market risk ratings, certain financial measures to assess an institution’s ability to withstand asset related stress and funding related stress, and a measure of loss severity that estimates the relative magnitude of potential losses to the FDIC in the event of the Bank’s failure. Assessment rates are subject to adjustment from the initial base assessment rate.

In addition to the quarterly assessment, the Bank has in the past been required to pay a quarterly surcharge, along with many other banks. The Dodd-Frank Act established a minimum DRR of 1.35% and required that the FDIC return the reserve ratio to that level by September 30, 2020. In order to do so, the FDIC in 2016 required insured depository institutions with $10 billion or more in total assets, such as the Bank, to pay a quarterly surcharge equal to an annual rate of 4.5 basis points applied to the Bank’s assessment base (with certain adjustments), in addition to regular assessments. The DRR first reached 1.36% in September 2018 which exceeded the statutory required minimum of 1.35%. The temporary surcharge imposed on large banks was lifted on October 1, 2018. As of December 31, 2019, the DRR was 1.41%. The FDIA requires the FDIC's Board to set a target or DRR for the DIF annually. The FDIC views the 2.0% DRR as a long-term goal and the minimum level needed to withstand future crises of the magnitude of past crises. The FDIC has adopted a set of progressively lower assessment rates when the reserve ratios exceeds 2.0% and 2.5%.

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The FDIC may terminate a depository institution’s deposit insurance upon a finding that the institution’s financial condition is unsafe or unsound, that the institution has engaged in unsafe or unsound practices, or has violated any applicable rule, regulation, condition, or order imposed by the FDIC.

Anti-Money Laundering and Office of Foreign Assets Control Regulation

The Bank Secrecy Act (“BSA”) and its implementing regulations and parallel requirements of the federal banking regulators require the Bank to maintain a risk-based Anti-Money Laundering (“AML”) program reasonably designed to prevent and detect money laundering and terrorist financing and to comply with the recordkeeping and reporting requirements of the BSA, including the requirement to report suspicious activities. The Federal Reserve expects that the Bank will have an effective governance structure for the program which includes effective oversight by our Board of Directors and management. The program must include, at a minimum, a designated compliance officer, written policies, procedures and internal controls, training of appropriate personnel, and independent testing of the program and risk-based customer due diligence procedures. The U.S. Department of Treasury’s Financial Crimes Enforcement Network (“FinCEN”) and the federal banking agencies continue to issue regulations and guidance with respect to the application and requirements of the BSA and their expectations for effective AML programs. Banking regulators also examine banks for compliance with regulations administered by the Office of Foreign Assets Control (“OFAC”) for economic sanctions against targeted foreign countries, nationals and others. Failure of a financial institution to maintain and implement adequate BSA/AML and OFAC programs, or to comply with all of the relevant laws or regulations, could have serious legal and reputational consequences for the institution.

Privacy and Cybersecurity

Several Federal statutes and regulations require state nonmember banks (and other insured depository institutions) to take several steps to protect nonpublic consumer financial information. The Bank has prepared a privacy policy, which it must disclose to consumers annually. In some cases, the Bank must obtain a consumer's consent before sharing information with an unaffiliated third party, and the Bank must allow a consumer to opt out of the Bank's sharing of information with its affiliates for marketing and certain other purposes. Additional conditions come into play in the Bank's information exchanges with credit reporting agencies. The Bank's privacy practices and the effectiveness of its systems to protect consumer privacy are one of the subjects covered in the Federal Reserve’s periodic compliance examinations.

Consumer data privacy and data protection are also the subject of state laws. For example, on January 1, 2020, the Bank became subject to the California Consumer Privacy Act (“CCPA”). This statute grants consumers several rights, including the right to request disclosure of information collected about them and whether that information has been sold or shared with others, the right to request deletion of personal information (subject to certain exceptions), and the right to opt out of the sale of their personal information. However, a consumer does not have these rights with respect to information that is collected, processed, sold, or disclosed pursuant to the GLBA. The California Attorney General has proposed but not yet finalized regulations to implement the CCPA.

The Federal Reserve pays close attention to the cybersecurity practices of state nonmember banks and their holding companies and affiliates. The interagency council of the agencies, the Federal Financial Institutions Examination Council, has issued several policy statements and other guidance for banks as new cybersecurity threats arise. FFIEC has recently focused on such matters as compromised customer credentials, cyber resilience and business continuity planning. Examinations by the banking agencies now include review of an institution’s information technology and its ability to thwart or mitigate cyber attacks.

Future Legislation and Regulation

From time to time, legislators, presidential administrations and regulators may enact rules, laws, and policies to regulate the financial services industry and public companies. Further legislative changes and additional regulations may change the Company’s operating environment in substantial and unpredictable ways. Such legislation and regulations could increase the cost of conducting business, impede the efficiency of the internal business processes, and restrict or expand the activities in which the Company may engage. The Company cannot predict whether future legislative proposals will be enacted and, if enacted, the impact they would have on the business strategy, results of operations or financial condition of the Company.

Employees

As of December 31, 2019, the Company had approximately 3,300 full-time equivalent employees. None of the Company’s employees are subject to a collective bargaining agreement.

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Available Information

The Company’s website is https://www.eastwestbank.com. The Company’s annual reports on Form 10-K, quarterly reports on Form 10-Q, proxy statements, current reports on Form 8-K, amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, and other filings with the SEC are available free of charge at http://investor.eastwestbank.com under the heading “SEC Filings”, as soon as reasonably practicable after the Company electronically files such material with, or furnishes it to, the SEC. These reports are also available for free on the SEC’s website at http://www.sec.gov. In addition, the Company’s Code of Conduct, Corporate Governance Guidelines, charters of the Audit Committee, Compensation Committee, Executive Committee, Risk Oversight Committee and Nominating/Corporate Governance Committee, and other corporate governance materials are available on the Investor Relations section of the Company’s website. The information contained on the Company’s website as referenced in this report is not part of this report.

Shareholders may also request a copy of any of the above-referenced reports and corporate governance documents free of charge by writing to: Investor Relations, East West Bancorp, Inc., 135 N. Los Robles Avenue, 7th Floor, Pasadena, California 91101; by calling (626) 768-6000; or by sending an e-mail to InvestorRelations@eastwestbank.com.

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ITEM 1A.  RISK FACTORS

In the course of conducting the Company’s businesses, the Company is exposed to a variety of risks, some of which are inherent in the financial services industry and others which are more specific to the Company’s businesses. The Company’s Enterprise Risk Management (“ERM”) program incorporates risk management throughout the organization in identifying, managing, monitoring, and reporting risks. Our ERM program identifies EWBC’s major risk categories as market risk, capital and liquidity risks, credit risk, operational risk, regulatory, compliance and legal risks, accounting and tax risks, strategic, and reputational risks. The ERM is comprised of senior management of the Company and is headed by the Chief Risk Officer.

The discussion below addresses the most significant factors, of which we are currently aware, that could have a material and adverse effect on our businesses, results of operations and financial condition. These risks and uncertainties should not be considered a complete discussion of all the risks and uncertainties the Company may face.

Market Risks

Unfavorable general economic, political or industry conditions, either domestically or internationally, may adversely affect our business and operating results. Our businesses and results of operations are affected by the financial markets and general economic conditions in the U.S. and Greater China, including factors such as the level and volatility of short-term and long-term interest rates, inflation, deflation, home prices, unemployment and under-employment levels, bankruptcies, household income, consumer spending, fluctuations in both debt and equity capital markets and currencies, liquidity of the global financial markets, availability and cost of capital and credit, investor sentiment and confidence in the financial markets, and sustainability of economic growth in the U.S. and Greater China. The deterioration of any of these conditions could adversely affect our consumer and commercial businesses, our securities and derivatives portfolios, our level of charge-offs and provision for credit losses, the carrying value of our deferred tax assets, our capital levels and liquidity, and our results of operations. In addition, because the Company’s operations and the collateral securing its real estate lending portfolio are concentrated in Northern and Southern California, the Company may be particularly susceptible to the adverse economic conditions in the state of California. Any unfavorable changes in the economic and market conditions could lead to the following risks:

• the process the Company uses to estimate losses inherent in the Company’s credit exposure requires difficult, subjective and complex judgments, including consideration of how these economic conditions might impair the ability of the borrowers to repay their loans. The level of uncertainty concerning economic conditions may adversely affect the accuracy of the Company’s estimates of losses inherent in the Company’s credit exposure which may, in turn, adversely impact the Company’s operating results and financial condition;

• the Company’s commercial and residential borrowers may not be able to make timely repayments of their loans, or a decrease in the value of real estate collateral securing the payment of such loans could result in credit losses, delinquencies, foreclosures and customer bankruptcies, any of which could have a material adverse effect on the Company’s operating results;

• a decrease in the demand for loans and other products and services;

• a decrease in deposit balances;

• future disruptions in the capital markets or other events, including actions by rating agencies and deteriorating investor expectations, may result in an inability to borrow on favorable terms or at all from other financial institutions;

• the value of the AFS investment securities portfolio that the Company holds may be adversely affected by defaults by debtors; and

• a loss of confidence in the financial services industry, our market sector and the equity markets by investors, placing pressure on the Company’s stock price.

Changes in the U.S. and Greater China trade policies, including the imposition of tariffs and retaliatory tariffs, may adversely impact the Company’s business, financial condition and results of operations. There has been ongoing discussion regarding potential changes to trade policies, legislation, treaties and tariffs between the U.S. and Greater China. Tariffs and retaliatory tariffs have been imposed and proposed. Changes in tariffs, retaliatory tariffs or other trade restrictions on products and materials that the Company’s customers import or export could cause the prices of their products to increase and possibly reduce demand and hence may negatively impact the Company’s customer margins and their ability to service debt. The Company may also experience a decrease in the demand for loans and other financial products, or experience a deterioration in the credit quality of the loans extended to the customers whose industry sectors that are most sensitive to the tariffs.

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A portion of the Company’s loan portfolio is secured by real estate and thus the Company has a higher degree of risk from a downturn in real estate markets. Because many of the Company’s loans are secured by real estate, a decline in real estate markets could impact the Company’s business and financial condition. Real estate values and real estate markets are generally affected by changes in general economic conditions, fluctuations in interest rates and the availability of loans to potential purchasers, changes in tax laws and other governmental statutes, regulations and policies, and natural disasters, such as wildfires and earthquakes, which are particular to California, where a significant portion of the Company’s real estate collateral is located. If real estate values decline, the value of real estate collateral securing the Company’s loans could be significantly reduced. The Company’s ability to recover on defaulted loans by foreclosing and selling the real estate collateral would then be diminished and the Company would be more likely to suffer losses on defaulted loans. Furthermore, CRE and multifamily loans typically involve large balances to single borrowers or groups of related borrowers. Since payments on these loans are often dependent on the successful operation or management of the properties, as well as the business and financial condition of the borrower, repayment of such loans may be subject to adverse conditions in the real estate market, adverse economic conditions, or changes in applicable government regulations. Borrowers’ inability to repay such loans may have an adverse effect on the Company’s businesses, results of operations and financial condition.

The Company’s businesses are subject to interest rate risk and variations in interest rates may have a material adverse effect on the Company’s financial performance. Our financial results depend substantially on net interest income, which is the difference between the interest income we earn on interest-earning assets and the interest expense we pay on interest-bearing liabilities. Interest-earning assets primarily include loans extended, securities held in our investment portfolio and excess cash held to manage short-term liquidity. We fund our assets using deposits and borrowings. While we offer interest-bearing deposit products, a portion of our deposit balances are from noninterest-bearing products. Overall, the interest rates we receive on our interest-earning assets and pay on our interest-bearing liabilities could be affected by a variety of factors, including market interest rate changes, competition, regulatory requirements and a change in our product mix. Changes in key variable market interest rates such as the Federal Funds, National Prime, LIBOR or Treasury rates generally impact our interest rate spread. Because of the differences in maturities and repricing characteristics of the Company’s interest-earning assets and interest-bearing liabilities, changes in interest rates do not produce equivalent changes in interest income earned on interest-earning assets and interest paid on interest-bearing liabilities. Increases in interest rates may result in a change in the mix of noninterest and interest-bearing deposit accounts. Rising interest rates may cause our funding costs to increase at a faster pace than the yield we earn on our assets, ultimately causing our net interest margin to decrease. Higher interest rates may also result in lower mortgage production income and increased charge-offs in certain segments of the loan portfolio, such as CRE and home equity. In contrast, declining interest rates would increase the Bank’s lending capacity, decrease funding cost, increase prepayments of loans and mortgage related securities, as borrowers refinance to reduce borrowing costs. Accordingly, changes in levels of interest rates could materially and adversely affect our net interest income, net interest margin, cost of deposits, loan origination volume, average loan portfolio balance, asset quality, liquidity and overall profitability.

Reforms to and uncertainty regarding LIBOR may adversely affect our business. On July 27, 2017, the United Kingdom’s Financial Conduct Authority (“FCA”), which regulates LIBOR, announced that it will no longer compel banks to submit rates for the calculation of LIBOR by the end of 2021. This indicates that LIBOR will be discontinued on December 31, 2021. In June 2017, U.S. Federal Reserve Bank's Alternative Reference Rates Committee (“ARRC”) selected the SOFR as the preferred alternative rate to LIBOR. SOFR differs from LIBOR in two respects: SOFR is a single overnight rate, while LIBOR includes rates of several tenors; and SOFR is deemed a credit risk-free rate while LIBOR incorporates an evaluation of credit risk. The ARRC and other entities intend for the transition to be economically neutral. The Federal Reserve Bank of New York has proposed a methodology for generating SOFRs of three different tenors and plans to publish an index on a daily basis beginning in the first half of 2020. The ARRC has developed a methodology for adjusting SOFR to reflect the risk considerations that underlie LIBOR. On July 12, 2019, the SEC issued a statement on LIBOR transition, indicating the significant impact that the discontinuation of LIBOR could have on financial markets and market participants. Since the volume of our products that are indexed to LIBOR is significant, the transition, if not sufficiently planned for and managed by our cross-functional teams, could adversely affect the Company’s financial condition and results of operations. Although implementation of the SOFR benchmark is intended to have minimal economic effect on the parties to a LIBOR-based contract, the transition from LIBOR to a new benchmark rate could result in significant operational, systems, increased compliance, legal and operational costs. This transition may also result in our customers challenging the determination of their interest payments or entering into fewer transactions or postponing their financing needs, which could reduce the Company’s revenue and adversely impact our business. In addition, the uncertainty regarding the future of LIBOR as well as the transition from LIBOR to another benchmark rate or rates could have adverse impacts on floating-rate obligations, loans, deposits, derivatives, and other financial instruments that currently use LIBOR as a benchmark rate and, ultimately, adversely affect the Company’s financial condition and results of operations.

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The monetary policies of the federal government and its agencies could have a material adverse effect on our earnings. The Federal Reserve Board regulates the supply of money and credit in the U.S. Its policies determine in large part the cost of funds for lending and investing and the return earned on those loans and investments, both of which affect our net interest margin. They can also materially decrease the value of financial assets we hold. Federal Reserve policies may also adversely affect borrowers, potentially increasing the risk that they may fail to repay their loans, or could adversely create asset bubbles which result from prolonged periods of accommodative policy. This, in turn, may result in volatile markets and rapidly declining collateral values. Changes in Federal Reserve policies are beyond our control and difficult to predict. Consequently, the impact of these changes on our business and results of operations is difficult to predict.

We face risks associated with international operations. A substantial number of our customers have economic and cultural ties to Asia. The Bank’s international presence includes five full-service branches in Greater China, located in Hong Kong, Shanghai, Shantou and Shenzhen. The Bank has two branches in Shanghai, including one in the Shanghai Pilot Free Trade Zone. The Bank also has four representative offices in Greater China located in Beijing, Chongqing, Guangzhou and Xiamen. Our efforts to expand our business in Greater China carries certain risks, including risks arising from the uncertainty regarding our ability to generate revenues from foreign operations, risks associated with leveraging and conducting business on an international basis, including among others, legal, regulatory and tax requirements and restrictions, cross-border trade restrictions or tariffs, uncertainties regarding liability, trade barriers, difficulties in staffing and managing foreign operations, political and economic risks, and financial risks including currency and payment risks. Additionally, our business could be adversely affected by the effects of a widespread outbreak of disease pandemics, including the recent outbreak of respiratory illness caused by a coronavirus first identified in Wuhan, Hubei Province, China. Any outbreak of disease pandemics, and other adverse public health developments, particularly in Asia, could have a material and adverse effect on our business operations. These could include temporary closures of our branches and offices and reduced consumer spending in the impacted regions or in the U.S., depending upon the severity, globally, which could adversely impact our operating results and the performance of loans to impacted borrowers in Greater China or in the U.S. In addition, a significant outbreak of disease pandemics in the human population could result in a widespread health crisis that could adversely affect the economies and financial markets of many countries, resulting in an economic downturn that could adversely affect our customers’ financial results. Further, volatility in the Shanghai and Hong Kong stock exchanges and/or a potential fall in real estate prices in China, among other things, may negatively impact asset values and the profitability and liquidity of the Company’s customers operating in this region. These risks could adversely affect the success of our international operations and could have a material adverse effect on our overall business, results of operations and financial condition. In addition, we face risks that our employees and affiliates may fail to comply with applicable laws and regulations governing our international operations, including the U.S. Foreign Corrupt Practices Act, anti-corruption laws, and other foreign laws and regulations. Failure to comply with such laws and regulations could, among other things, result in enforcement actions and fines against us, as well as limitations on our conduct, any of which could have a material adverse effect on our businesses, results of operations and financial condition.

The Company is subject to fluctuations in foreign currency exchange rates. The Company’s foreign currency translation exposure relates primarily to its China subsidiary that has its functional currency denominated in Chinese Renminbi (“RMB”). In addition, as the Company continues to expand its businesses in China and Hong Kong, certain transactions are conducted in currencies other than the U.S. Dollar (“USD”). Although the Company has entered into derivative instruments to offset the impact of the foreign exchange fluctuations, given the volatility of exchange rates, there is no assurance that the Company will be able to effectively manage foreign currency translation risk. Fluctuations in foreign currency exchange rates could have a material unfavorable impact on the Company’s net income, therefore adversely affecting the Company’s business, results of operations and financial condition.

Capital and Liquidity Risks

As a regulated entity, we are subject to capital requirements, and a failure to meet these standards could adversely affect our financial condition. The Company and the Bank are subject to certain capital and liquidity rules, including the Basel III Capital Rules, which establish the minimum capital adequacy requirements and may require us to increase our regulatory capital or liquidity targets, increase regulatory capital ratios, or change how we calculate regulatory capital. We may be required to increase our capital levels, even in the absence of actual adverse economic conditions or forecasts, and enhance capital planning based on hypothetical future adverse economic scenarios. As of January 1, 2020, we met the requirements of the Basel III Capital Rules, including the capital conservation buffer. Compliance with these capital requirements may limit capital-intensive operations and increase operational costs, and we may be limited or prohibited from distributing dividends or repurchasing stocks. This could adversely affect our ability to expand or maintain present business levels, which may adversely affect our businesses, results of operations and financial condition. Additional information on the regulatory capital requirements applicable to the Company and the Bank is set forth in Item 1. Business — Supervision and Regulation — Capital Requirements in this Form 10-K.

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The Company’s dependence on dividends from the Bank could affect the Company’s liquidity and ability to pay dividends. East West is dependent on the Bank for dividends, distributions and other payments. Our principal source of cash flows, including cash flows to pay dividends to our stockholders and principal and interest on our outstanding debt, is dividend income from the Bank. The ability of the Bank to pay dividends to East West is limited by federal and California law. Subject to the Bank meeting or exceeding regulatory capital requirements, regulatory approval is required if the total of all dividends declared by the Bank in any calendar year would exceed the sum of the Bank’s net income for that year and its retained earnings for the preceding two years. Federal law also prohibits the Bank from paying dividends that would be greater than its undivided profits. In addition, Federal Reserve guidance sets forth the supervisory expectation that bank holding companies will inform and consult with the Federal Reserve in advance of issuing a dividend that exceeds earnings for the quarter and should not pay dividends in a rolling four quarter period in an amount that exceeds net income for the period.

The Company is subject to liquidity risk, which could negatively affect the Company’s funding levels. Market conditions or other events could negatively affect the level of or cost of funding, which in turn could affect the Company’s ongoing ability to accommodate liability maturities and deposit withdrawals, meet contractual obligations, or fund asset growth and new business initiatives at a reasonable cost, in a timely manner and without adverse consequences. Although the Company has implemented strategies to maintain sufficient and diverse sources of funding to accommodate planned, as well as unanticipated changes in assets, liabilities, and off-balance sheet commitments under various economic conditions, a substantial, unexpected or prolonged change in the level or cost of liquidity could have a material adverse effect on the Company’s businesses, results of operations and financial condition. If the cost effectiveness or the availability of supply in the credit markets is reduced for a prolonged period of time, the Company’s funding needs may require the Company to access funding and manage liquidity by other means. These alternatives may include generating client deposits, securitizing or selling loans, and further managing loan growth and investment opportunities. These alternative means of funding may not be available under stressed market conditions or realized in a timely fashion.

Any downgrades in our credit ratings could have a material adverse effect on our liquidity, cost of funding, cash flows, results of operations and financial condition. Credit rating agencies regularly evaluate us, and their ratings are based on a number of factors, including our financial strength, capital adequacy, liquidity, asset quality and ability to generate earnings. Some of these factors are not entirely within our control, such as conditions affecting the financial services industry. Severe downgrades in credit ratings could impact our business and reduce the Company’s profitability in different ways, including a reduction in the Company’s access to capital markets, triggering additional collateral or funding obligations which could negatively affect our liquidity. In addition, our counterparties, as well as our clients, rely on our financial strength and stability and evaluate the risks of doing business with us. If we experience a decline in our credit rating, this could result in a decrease in the number of counterparties and clients who may be willing to transact with us. Our borrowing costs may also be affected by various external factors, including market volatility and concerns or perceptions about the financial services industry. There can be no assurance that we can maintain our credit ratings nor that they will be lowered in the future.

Credit Risks

The Company’s allowance for credit losses level may not be adequate to cover actual losses. In accordance with U.S. Generally Accepted Accounting Principles (“GAAP”), we maintain an allowance for loan losses to provide for loan defaults and non-performance, and an allowance for unfunded credit commitments which, when combined, are referred to as the allowance for credit losses. Our allowance for loan losses is based on our evaluation of risks associated with our loans held-for-investment portfolio, including historical loss experience, expected loss calculations, delinquencies, performing status, the size and composition of the loan portfolio, economic conditions, and concentrations within the portfolio. The allowance estimation process requires subjective and complex judgments, including analysis of economic conditions and how these economic conditions might impair the ability of our borrowers to repay their loans. Current economic conditions in the U.S. and in the international markets could deteriorate, which could result in, among other things, greater than expected deterioration in credit quality of our loan portfolio or in the value of collateral securing these loans. Our allowance for credit losses may not be adequate to absorb actual credit losses, and future provisions for credit losses could materially and adversely affect our operating results. The amount of future losses is influenced by changes in economic, operating and other conditions, including changes in interest rates that may be beyond our control, and these losses may exceed current estimates.

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Additionally, in order to maximize the collection of loan balances, we sometimes modify loan terms when there is a reasonable chance that an appropriate modification would allow the borrower to continue servicing the debt. If such modifications ultimately are less effective at mitigating loan losses than we expect, we may incur losses in excess of the specific amount of allowance for loan losses associated with a modified loan, and this would result in additional provision for loan losses. In addition, we establish a reserve for losses associated with our unfunded credit commitments. The level of the allowance for unfunded credit commitments is determined by following a methodology similar to that used to establish our allowance for loan losses in our loans held-for-investment portfolio. There can be no assurance that our allowance for unfunded credit commitments will be adequate to provide for the actual losses associated with our unfunded credit commitments. An increase in the allowance for unfunded credit commitments in any period may result in a charge to earnings.

We may be subject to increased credit risk and higher credit losses to the extent that our loans are concentrated by loan type, industry segment, borrower type, or location of the borrower or collateral. Our credit risk and credit losses can increase if our loans are concentrated in borrowers affected by the same or similar economic conditions in the markets in which we operate or elsewhere, which could result in materially higher credit losses. For example, the Bank has a concentration of real estate loans in California. Potential deterioration in the California real estate market could result in additional loan charge-offs and provision for loan losses, which could have a material adverse effect on the Company’s business, results of operations and financial condition. If any particular industry or market sector were to experience economic difficulties, loan collectability from customers operating in those industries or sectors may differ from what we expected, which could have a material adverse impact on our results of operations and financial condition.

Operational Risks

A failure in or breach of our operational or security systems or infrastructure, or those of third parties, could disrupt our businesses, and adversely impact our results of operations, financial condition, cash flows, and liquidity, as well as cause reputational harm. The potential for operational risk exposure exists throughout our organization and from our interactions with third parties. Our operational and security systems, infrastructure, including our computer systems, network infrastructure, data management and internal processes, as well as those of third parties, are integral to our performance. In addition, we rely on our employees and third parties in our ongoing operations, who may, as a result of human error or malfeasance or failure or breach of third-party systems or infrastructure, expose us to risk. We have taken measures to implement backup systems and safeguards to support our operations, but our ability to conduct business may be adversely affected by any significant disruptions to us or to the third parties with whom we interact. In addition, our ability to implement backup systems and other safeguards with respect to third-party systems is more limited than with respect to our own systems. Our financial, accounting, data processing, backup or other operating or security systems and infrastructure may fail to operate properly or may become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control which could adversely affect our ability to process transactions or provide certain services. There could be electrical, telecommunications or other major physical infrastructure outages, natural disasters such as wildfires, disease pandemics, earthquakes, tornadoes, hurricanes and floods, and events arising from local or larger scale political or social matters, including terrorist acts. We continuously update these systems to support our operations and growth, and this entails significant costs and creates risks associated with implementing new systems and integrating them with existing ones. Operational risk exposures could adversely impact our results of operations, financial condition, cash flows, and liquidity, and may result in loss of confidence, significant litigation exposure and harm to our reputation.

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A cyber-attack, information or security breach, or a technology failure of our systems or of a third party’s systems could adversely affect our ability to conduct businesses, manage our exposure to risk or expand our businesses. This could also result in the misuse of confidential or proprietary information, increase our costs to maintain and update our operational and security systems and infrastructure, and adversely impact our results of operations, financial condition, cash flows and liquidity, as well as result in reputational harm. The Company offers various internet-based services to its clients, including online banking services. The secure transmission of confidential information over the internet is essential in maintaining our clients’ confidence in the Company’s online services. In addition, our business is highly dependent on the security and efficacy of our infrastructure, computer and data management systems, as well as those of third parties with whom we interact. Cyber security risks, including ransomware and malware attacks, for financial institutions have significantly increased in recent years in part because of the proliferation of new technologies, the use of the internet and telecommunication technologies to conduct financial transactions, and the increased sophistication and activities of organized crime, hackers, terrorists, nation-states and other external parties. Our businesses rely on the secure processing, transmission, storage and retrieval of confidential, proprietary and other information in our computer and data management systems and networks, and in the computer and data management systems and networks of third parties. We rely on digital technologies, computer, database and email systems, software and networks. Notwithstanding our defensive systems and processes that are designed to prevent security breaches and periodically test the Company’s security. The Company utilizes combination of preventative and detective controls such as Firewalls, Intrusion Detection Systems, Data Loss Prevention, anti-malware, Endpoint Detection and Response solutions to safeguard against cyber-attacks. There is no assurance that all of our security measures will be effective, especially as the threat from cyber-attacks is continuous and severe, attacks are becoming more sophisticated and increasing in volume, and attackers respond rapidly to changes in defensive measures. Failure to mitigate breaches of security, or to comply with frequent imposition of increasingly demanding new and changing industry standards and regulatory requirements, could result in violation of applicable privacy laws, reputational damage, regulatory fines, litigation exposure, increase security compliance costs, affect the Company’s ability to offer and grow the online services, and could have an adverse effect on the Company’s businesses, results of operations and financial condition. We have not experienced any known attacks on our information technology systems that have resulted in any material system failure, incident or security breach to date.

Failure to keep pace with technological change could adversely affect the Company’s businesses. The Company may face risks associated with the ability to utilize information technology systems to support our operations effectively. The financial services industry is continuously undergoing rapid technological change with frequent introductions of new technology-driven products and services. The effective use of technology increases efficiency and enables financial institutions to better serve customers and to reduce costs. The Company’s future success depends, in part, upon its ability to address the needs of its customers by using technology to provide products and services that will satisfy customer demands, as well as to create additional efficiencies in the Company’s operations. Many of the Company’s competitors have substantially greater resources to invest in technological improvements. The Company may not be able to effectively implement new technology-driven products and services or be successful in marketing these products and services to its customers. Failure to successfully keep pace with technological change affecting the financial services industry could have a material adverse impact on the Company’s businesses and, in turn, the Company’s results of operations and financial condition. In addition, if we do not implement systems effectively or if our outsourcing business partners do not perform their functions properly, there could be an adverse effect on us. There can be no assurance that we will be able to effectively maintain or improve our systems and processes, or utilize outsourced talent, to meet our business needs efficiently. Any such failure could adversely affect our businesses, results of operations, financial condition, and reputation.

Natural disasters and geopolitical events beyond the Company’s control could adversely affect the Company. Natural disasters such as wildfires, earthquakes, extreme weather conditions, hurricanes, floods, disease pandemics and other acts of nature and geopolitical events involving political unrest, terrorism or military conflict could adversely affect the Company’s business operations and those of the Company’s customers and cause substantial damage and loss to real and personal property. For example, California, in which the Company’s operations and the collateral securing its real estate lending portfolio are concentrated, contains active earthquake zones and have been subject to numerous devastating wildfires. These natural disasters and geopolitical events could impair the borrowers’ ability to service their loans, decrease the level and duration of deposits by customers, erode the value of loan collateral, and result in an increase in the amount of nonperforming assets, net charge-offs, and provision for loan losses, which could adversely affect the Company’s businesses, results of operations and financial condition.

The actions and soundness of other financial institutions could affect the Company. Financial services institutions are interrelated as a result of trading, clearing, counterparty or other relationships. The Company executes transactions with various counterparties in the financial industry, including brokers and dealers, commercial banks and investment banks. Defaults by financial services institutions and uncertainty in the financial services industry in general could lead to market-wide liquidity problems and may expose the Company to credit risk in the event of default of its counterparties or clients. Further, the Company’s credit risk may increase when the underlying collateral held cannot be realized or is liquidated at prices not sufficient to recover the full amount of the loan or derivative exposure due to the Company. Any such losses could materially and adversely affect the Company’s businesses, results of operations and financial condition.

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The Company’s controls and procedures could fail or be circumvented. Management regularly reviews and updates the Company’s internal controls, reporting controls and procedures, and corporate governance policies and procedures. Any system of controls, however well designed and operated, is based in part on certain assumptions and can provide only reasonable, but not absolute, assurances of the effectiveness of these systems and controls, and that the objectives of these controls have been met. Any failure or circumvention of the Company’s controls and procedures, and any failure to comply with regulations related to controls and procedures could adversely affect the Company’s businesses, results of operations and financial condition.

The Company is dependent on key personnel and the loss of one or more of those key personnel may materially and adversely affect the Company’s prospects. Competition for qualified personnel in the banking industry is intense and there is a limited number of qualified persons with knowledge of, and experience in, the regional banking industry, especially in the West Coast market. The process of recruiting personnel with the combination of skills and attributes required to carry out the Company’s strategies is often lengthy. The Company’s success depends, to a significant degree, upon its ability to attract and retain qualified management, loan origination, finance, administrative, marketing and technical personnel, as well as upon the continued contributions of its management and personnel. In particular, the Company’s success has been and continues to be highly dependent upon the abilities of certain key executives.

We face strong competition in the financial services industry and we could lose business or suffer margin declines as a result. The Company operates in a highly competitive environment. The Company conducts the majority of its operations in California. Our competitors include commercial banks, savings and loan associations, finance companies, brokerage firms, insurance companies, credit unions, mortgage banks and other regional, national, and global financial institutions. Some of the major competitors include multinational financial service companies whose greater resources may afford them a marketplace advantage by enabling them to maintain numerous locations and mount extensive promotional and advertising campaigns. Areas of competition include interest rates on loans and deposits, customer services, and a range of price and quality of products and services, including new technology-driven products and services. Failure to attract and retain banking customers may adversely impact the Company’s loan and deposit growth.

The Company has engaged in and may continue to engage in further expansion through acquisitions, which could negatively affect the Company’s businesses and earnings. There are risks associated with expanding through acquisitions. These risks include, among others, incorrectly assessing the asset quality of a bank acquired in a particular transaction, encountering greater than anticipated costs in integrating acquired businesses, facing resistance from customers or employees, and being unable to profitably deploy assets acquired in the transaction. Additional country or region-specific risks are associated with transactions outside the U.S., including in Greater China. To the extent the Company issues capital stock in connection with additional transactions, these transactions and related stock issuances may have a dilutive effect on earnings per share (“EPS”) and share ownership.

Regulatory, Compliance and Legal Risks

Changes in current and future legislation and regulation may require the Company to change its business practices, increase costs, limit the Company’s ability to make investments and generate revenue, or otherwise adversely affect business operations and/or competitiveness. EWBC is subject to extensive regulation under federal and state laws, as well as supervisions and examinations by the DBO, FDIC, Federal Reserve, FHLB, SEC, CFPB, U.S. and State Attorneys General, and other government bodies. Our overseas operations in Greater China are subject to extensive regulation under the laws of those jurisdictions as well as supervision and examinations by financial regulators for those jurisdictions. Moreover, regulation of the financial services industry continues to undergo major changes. Changes to statutes, regulations or regulatory policies, including changes in interpretation or implementation of statutes, regulations or policies could affect the manner in which EWBC conducts business. In addition, such changes could also subject us to additional costs and may limit the types of financial services and products we offer, and the investments we make.

Good standing with our regulators is of fundamental importance to the continuation and growth of our businesses given that banks operate in an extensively regulated environment under state and federal law. In the performance of their supervisory and enforcement duties, federal, state and non-U.S. regulators have significant discretion and power to initiate enforcement actions for violations of laws and regulations, and unsafe and unsound practices. Further, regulators and bank supervisors continue to exercise qualitative supervision and regulation of our industry and specific business operations and related matters. Violations of laws and regulations or deemed deficiencies in risk management or other qualitative practices also may be incorporated into the Company’s bank supervisory ratings. A downgrade in these ratings, or other regulatory actions and settlements could limit the Company’s ability to pursue acquisitions or conduct other expansionary activities and require new or additional regulatory approvals before engaging in certain other business activities.

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Failure to comply with laws, regulations or policies could result in civil or criminal sanctions by state, federal and non-U.S. agencies, the loss of FDIC insurance, the revocation of our banking charter, civil or criminal monetary penalties and/or reputational damage, which could have a material adverse impact on the Company’s businesses, results of operations and financial condition. We continue to make adjustments to our business and operations, capital, policies, procedures and controls to comply with these laws and regulations, final rulemaking, and interpretations from the regulatory authorities. See Item 1. Business — Supervision and Regulation for more information about the regulations to which we are subject.

We face a risk of noncompliance and enforcement action with the Bank Secrecy Act and other anti-money laundering statutes and regulations. The BSA, the USA PATRIOT Act of 2001, and other laws and regulations require financial institutions, among other duties, to institute and maintain an effective AML program and file suspicious activity and currency transaction reports when appropriate. We are also required to ensure our third party vendors adhere to the same laws and regulations. FinCEN is authorized to implement, administer, and enforce compliance with the BSA and associated regulation. It has the authority to impose significant civil money penalties for violations of those requirements and has been engaging in coordinated enforcement efforts with the state and federal banking regulators, as well as the Department of Justice, CFPB, Drug Enforcement Administration, and the Internal Revenue Service (“IRS”).

We are also required to comply with U.S. economic and trade sanctions administered by OFAC regarding, among other things, the prohibition of transacting business with, and the need to freeze assets of, certain persons and organizations identified as a threat to the national security, foreign policy or economy of the U.S. A violation of any anti-corruption or AML laws and regulations could subject us to significant civil and criminal penalties as well as regulatory enforcement actions, which may include restrictions on our ability to pay dividends and the necessity to obtain regulatory approvals to proceed with certain aspects of our business plan, including any acquisition plans. Any violation also could damage our reputation. Any of these results could have a material adverse effect on our business, results of operations, financial condition and future prospects.

We are subject to significant financial and reputational risk arising from lawsuits and other legal proceedings. We face significant risk from lawsuits and claims brought by consumers, borrowers and counterparties. These actions include claims for monetary damages, penalties and fines, as well as demands for injunctive relief. If these lawsuits or claims, whether founded or unfounded, are not resolved in a favorable manner to us, they could lead to significant financial obligations for the Company, as well as restrictions or changes to how we conduct our businesses. Although we establish accruals for legal matters when and as required by GAAP and certain expenses and liabilities in connection with such matters may or may not be covered by insurance, the amount of loss ultimately incurred in relation to those matters may be substantially higher than the amounts accrued and/or insured. Substantial legal liability could adversely affect our business, financial condition, results of operations, and reputation. In addition, we may suffer significant reputational harm as a result of lawsuits and claims, adversely impacting our ability to attract and retain customers and investors. Moreover, it may be difficult to predict the outcome of certain legal proceedings, which may present additional uncertainty to our business prospects.

Accounting and Tax Risks

Changes in accounting standards or changes in how the accounting standards are interpreted or applied could materially impact the Company’s financial statements. The preparation of the Company’s financial statements is based on accounting standards established by the FASB and the SEC. From time to time, these accounting standards may change and such changes may have a material impact on the Company’s financial statements. In addition, the FASB, SEC, banking regulators and the Company’s independent registered public accounting firm may amend or reverse their previous interpretations or positions on how various standards should be applied. These changes may be difficult to predict and could impact how we prepare and report the Company’s financial statements. In some cases, the Company could be required to adopt a new or revised standard retroactively, potentially resulting in restatements to the prior period’s financial statements. ASU 2016-13, Financial Instruments — Credit Losses (Topic 326) issued by the FASB in June 2016, referred to as CECL, requires the earlier recognition of credit losses on loans and other financial instruments based on an expected loss model, replacing the incurred loss model that is currently in use. The Company adopted ASU 2016-13 on January 1, 2020. For more information related to the impacts of ASU 2016-13, see Note 1 — Summary of Significant Accounting Policies — Recent Accounting Pronouncements — Standards Adopted in 2020 to the Consolidated Financial Statements in this Form 10-K.

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The Company’s consolidated financial statements are based in part on assumptions and estimates which, if incorrect, could cause unexpected losses in the future. Pursuant to GAAP, we are required to use certain assumptions and estimates in preparing our financial statements, including in determining credit loss reserves, reserves related to litigation and the fair value of certain assets and liabilities, among other items. Accounting policies related to these estimates and assumptions are critical because they require management to make subjective and complex judgments about matters that are inherently uncertain. If these estimates and assumptions are incorrect, we may be required to restate prior-period financial statements. For a description of these policies, refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Form 10-K.

Changes to fiscal policies and tax legislation may adversely affect our business. From time to time, the U.S. government may introduce new fiscal policies and tax laws or make substantial changes to existing tax legislation. These changes could have a material impact on the Company’s businesses, results of operations and financial condition. The Company’s positions or its actions taken prior to such changes, may be compromised by such changes. In addition, the Company’s actions taken in response to, or in reliance upon, such changes in the tax laws may impact our tax position in a manner that may result in adverse financial conditions. On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was enacted and made significant changes to the U.S. Internal Revenue Code. The Tax Act reformed a broad range of tax legislation affecting businesses, among other things, reducing the statutory corporate income tax rate from 35% to 21%, limiting on net interest expense deduction and accelerating expensing of investment in certain qualified property. It is possible that the U.S. government could further introduce new tax legislation or amend current tax laws that would adversely affect the Company. In addition, the President’s proposed budget, negotiations with Congress over the details of the budget, and the terms of the approved budget could create uncertainty about the U.S. economy, ultimately having an adverse effect on our business.

The Company’s investments in certain tax-advantaged projects may not generate returns as anticipated and may have an adverse impact on the Company’s results of operations. The Company invests in certain tax-advantaged investments that support qualified affordable housing projects, community development and renewable energy resources. The Company’s investments in these projects are designed to generate a return primarily through the realization of federal and state income tax credits, and other tax benefits, over specified time periods. Due diligence review is performed both prior to the initial investment and on an ongoing basis, however, there may be assessments that we failed or were unable to discover or identify in the course of performing due diligence review. The Company is subject to the risk that previously recorded tax credits, which remain subject to recapture by taxing authorities based on compliance features required to be met at the project level, may fail to meet certain government compliance requirements and may not be able to be realized. The possible inability to realize these tax credits and other tax benefits may have a negative impact on the Company’s financial results. The risk of not being able to realize the tax credits and other tax benefits depends on many factors outside the Company’s control, including changes in the applicable tax code and the ability of the projects to be completed.

Other Risks

Anti-takeover provisions could negatively impact the Company’s stockholders.  Provisions of Delaware law and of the Company’s certificate of incorporation, as amended, and bylaws could make it more difficult for a third party to acquire control of the Company or could have the effect of discouraging a third party from attempting to acquire control of the Company. For example, the Company’s certificate of incorporation requires the approval of the holders of at least two-thirds of the outstanding shares of voting stock to approve certain business combinations. The Company is also subject to Section 203 of the Delaware General Corporation Law, which would make it more difficult for another party to acquire the Company without the approval of the Board of Directors. Additionally, the Company’s certificate of incorporation, as amended, authorizes the Board of Directors to issue preferred stock which could be issued as a defensive measure in response to a takeover proposal. These and other provisions could make it more difficult for a third party to acquire the Company, even if an acquisition might be in the best interest of the stockholders.

Managing reputational risk is important to attracting and maintaining customers, investors and employees. Threats to the Company’s reputation can come from many sources, including unethical practices, employee misconduct, failure to deliver minimum standards of service or quality, compliance deficiencies, and questionable or fraudulent activities of the Company’s customers. The Company has policies and procedures in place to protect its reputation and promote ethical conduct, but these policies and procedures may not be fully effective. Negative publicity regarding the Company’s businesses, employees or customers, with or without merit, may result in the loss of customers, investors and employees, costly litigation, a decline in revenues and increased governmental regulation.

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The price of the Company’s common stock may be volatile or may decline. The price of the Company’s common stock may fluctuate in response to a number of factors that are outside the Company’s control. These factors include, among other things:

• actual or anticipated quarterly fluctuations in the Company’s results of operations and financial condition;

• changes in revenue or earnings estimates or publication of research reports and recommendations by financial analysts;

• failure to meet analysts’ revenue or earnings estimates;

• speculation in the press or investment community;

• strategic actions by the Company or its competitors, such as acquisitions or restructurings;

• actions by institutional stockholders;

• addition or departure of key personnel;

• fluctuations in the stock price and operating results of the Company’s competitors;

• general market conditions and, in particular, developments related to market conditions in the financial services industry;

• proposed or adopted regulatory changes or developments;

• cyclical fluctuations;

• trading volume of the Company’s common stock; and

• anticipated or pending investigations, proceedings or litigation that involve or affect the Company.

Industry factors, general economic and political conditions and events, such as cyber or terrorist attacks, economic downturn or recessions, interest rate changes, credit loss trends, currency fluctuations, changes to trade policies or disease pandemics could also cause our stock price to decline regardless of our operating results. A significant decline in the Company’s stock price could result in substantial losses for stockholders.

If the Company’s goodwill was determined to be impaired, it would result in a charge against earnings and thus a reduction in stockholders’ equity. The Company tests goodwill for impairment on an annual basis, or more frequently, if necessary. Quoted market prices in active markets are the best evidence of fair value and are to be used as the basis for measuring impairment, when available. Other acceptable valuation methods include present value measurements based on multiples of earnings or revenues, or similar performance measures. If the Company were to determine that the carrying amount of the goodwill exceeded its implied fair value, the Company would be required to write down the value of the goodwill on the balance sheet, adversely affecting earnings as well as capital.

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ITEM 1B.  UNRESOLVED STAFF COMMENTS

None.

ITEM 2.  PROPERTIES

East West’s corporate headquarters is located at 135 North Los Robles Avenue, Pasadena, California, an eight-story office building that it owns. The Company operates in 119 locations in the U.S. and 9 locations in Greater China. In the U.S., the Bank’s corporate headquarters and main administrative offices are located in California, and branches are located in California, Texas, New York, Washington, Georgia, Massachusetts and Nevada. In Greater China, East West’s presence includes full service branches in Hong Kong, Shanghai, Shantou and Shenzhen, and representative offices in Beijing, Chongqing, Guangzhou and Xiamen.

As of December 31, 2019, the Bank owns approximately 162 thousand square feet of property at 20 U.S. locations and leases approximately 780 thousand square feet in the remaining U.S. locations. Expiration dates for these leases range from 2020 to 2030, exclusive of renewal options. The Bank leases all of its branches and offices in Greater China, totaling approximately 84 thousand square feet. Expiration dates for these leases range from 2020 to 2022. All properties occupied by the Bank are used across all business segments and for corporate purposes. For further information concerning leases, see Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K.

On an ongoing basis, the Company evaluates its current and projected space requirements and, from time to time, it may determine that certain premises or facilities are no longer necessary for its operations. The Company believes that, if necessary, it could secure alternative properties on similar terms without adversely affecting its operations.

ITEM 3.  LEGAL PROCEEDINGS

See Note 15 — Commitments, Contingencies and Related Party Transactions — Litigation to the Consolidated Financial Statements in this Form 10-K, which is incorporated herein by reference.

ITEM 4.  MINE SAFETY DISCLOSURES

Not applicable.

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PART II 

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information, Holders of Common Stock and Dividends

The Company’s common stock is traded on the NASDAQ Global Select Market under the symbol “EWBC”. As of January 31, 2020, 145,625,565 shares of the Company’s common stock were held by 737 stockholders of record and by approximately 88,033 additional stockholders whose common stock were held for them in street name or nominee accounts.

Holders of the Company’s common stock are entitled to receive cash dividends when declared by the Company’s Board of Directors out of legally available funds. The Board of Directors presently intends to continue the policy of paying quarterly cash dividends, however, there can be no assurance as to future dividends because they are dependent on the Company’s future earnings, capital requirements and financial condition.

Securities Authorized for Issuance under Equity Compensation Plans

For information regarding securities authorized for issuance under the Company’s equity compensation plans, see Note 16 — Stock Compensation Plans to the Consolidated Financial Statements and Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters presented elsewhere in this report, which are incorporated herein by reference.

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Five-Year Stock Performance

The following graph and table compare the Company’s cumulative total return on its common stock with the cumulative total return of the Standard & Poor’s (“S&P”) 500 Index and the Keefe, Bruyette and Woods NASDAQ Regional Banking Index (“KRX”) over the five-year period through December 31, 2019. The S&P 500 Index is utilized as a benchmark against performance and is a commonly referenced U.S. equity benchmark consisting of leading companies from different economic sectors. The KRX is used to align EWBC with those companies of a relatively similar size. This index seeks to reflect the performance of publicly traded U.S. companies that do business as regional banks or thrifts, and is composed of 50 companies. The graph and table below assume that on December 31, 2014, $100 was invested in EWBC’s common stock, the S&P 500 Index and the KRX, and that all dividends were reinvested. Historical stock price performance shown on the graph is not necessarily indicative of future price performance. The information set forth under the heading “Five-Year Stock Performance” shall not be deemed to be “soliciting material” or to be “filed” with the SEC or subject to the liabilities of Section 18 of the Exchange Act, except to the extent that the Company specifically requests that such information to be treated as soliciting material or specifically to be incorporated by reference into a filing under the Securities Act or the Exchange Act.

	December 31,
Index	2014	2015	2016	2017	2018	2019
East West Bancorp, Inc.	$100.00	$109.40	$136.60	$165.80	$120.50	$138.00
KRX	$100.00	$105.90	$147.20	$149.80	$123.60	$153.00
S&P 500 Index	$100.00	$101.40	$113.50	$138.30	$132.20	$173.90

Repurchases of Equity Securities by the Issuer and Affiliated Purchasers

On July 17, 2013, the Company’s Board of Directors authorized a stock repurchase program to buy back up to $100.0 million of the Company’s common stock. The Company did not repurchase any shares under this program thereafter, including during 2019 and 2018. Although this program has no stated expiration date, the Company does not intend to repurchase any stock pursuant to this program absent further action of the Company’s Board of Directors.

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ITEM 6.  SELECTED FINANCIAL DATA

For selected financial data information, see Item 7. MD&A — Five-Year Summary of Selected Financial Data, which is incorporated herein by reference.

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EAST WEST BANCORP, INC.

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

TABLE OF CONTENTS

		Page
Overview		30
Five-Year Summary of Selected Financial Data		31
2019 Financial Highlights		32
Results of Operations		33
	Net Interest Income	33
	Noninterest Income	36
	Noninterest Expense	38
	Income Taxes	39
	Operating Segment Results	41
Balance Sheet Analysis		44
	Selected Consolidated Balance Sheet Data	44
	Investment Securities	45
	Loan Portfolio	48
	Deposits and Other Sources of Funds	55
	Foreign Outstandings	57
	Capital	57
	Regulatory Capital and Ratios	58
Other Matters		59
Off-Balance Sheet Arrangements and Contractual Obligations		59
	Off-Balance Sheet Arrangements	59
	Contractual Obligations	60
Risk Management		60
	Credit Risk Management	61
	Liquidity Risk Management	67
	Market Risk Management	69
Critical Accounting Policies and Estimates		73
Supplemental Information-Explanation of GAAP and Non-GAAP Financial Measures		76

29

Overview

The following discussion provides information about the results of operations, financial condition, liquidity, and capital resources of East West, and its subsidiaries, including its subsidiary bank, East West Bank and its subsidiaries (referred to herein as “East West Bank” or the “Bank”). This information is intended to facilitate the understanding and assessment of significant changes and trends related to the Company’s results of operations and financial condition. This discussion and analysis should be read in conjunction with the Consolidated Financial Statements and the accompanying notes presented elsewhere in this report.

Company Overview

East West is a bank holding company incorporated in Delaware on August 26, 1998 and is registered under the BHC Act. The Company commenced business on December 30, 1998 when, pursuant to a reorganization, it acquired all of the voting stock of the Bank, which became its principal asset. The Bank is an independent commercial bank headquartered in California that has a strong focus on the financial service needs of the Chinese-American community. Through over 125 locations in the U.S. and Greater China, the Company provides a full range of consumer and commercial products and services through three business segments: Consumer and Business Banking, Commercial Banking, with the remaining operations included in Other. The Company’s principal activity is lending to and accepting deposits from businesses and individuals. The primary source of revenue is net interest income, which is principally derived from the difference between interest earned on loans and investment securities and interest paid on deposits and other funding sources. As of December 31, 2019, the Company had $44.20 billion in assets and approximately 3,300 full-time equivalent employees. For additional information on products and services provided by the Bank, see Item 1. Business — Banking Services.

Corporate Strategy

We are committed to enhancing long-term shareholder value by executing on the fundamentals of growing loans, deposits and revenue, improving profitability, and investing for the future while managing risk, expenses and capital. Our business model is built on customer loyalty and engagement, understanding of our customers’ financial goals, and meeting our customers’ financial needs through our diverse products and services. The Company’s approach is concentrated on seeking out and deepening client relationships that meet our risk/return measures. This focus guides our decision-making across every aspect of our operations: the products we develop, the expertise we cultivate and the infrastructure we build to help our customers conduct business. We expect our relationship-focused business model to continue to generate organic growth and to expand our targeted customer bases. On an ongoing basis, we invest in technology related to critical business infrastructure and streamlining core processes, in the context of maintaining appropriate expense management. Our risk management activities are focused on ensuring that the Company identifies and manages risks to maintain safety and soundness while maximizing profitability.

30

Five-Year Summary of Selected Financial Data

($ and shares in thousands, except per share, ratio and headcount data)	2019			2018			2017			2016			2015
Summary of operations:
Interest and dividend income	$	1,882,300		$	1,651,703		$	1,325,119		$	1,137,481		$	1,053,815
Interest expense	414,487			265,195			140,050			104,843			103,376
Net interest income before provision for credit losses	1,467,813			1,386,508			1,185,069			1,032,638			950,439
Provision for credit losses	98,685			64,255			46,266			27,479			14,217
Net interest income after provision for credit losses	1,369,128			1,322,253			1,138,803			1,005,159			936,222
Noninterest income (1)	209,377			210,909			257,748			182,278			182,779
Noninterest expense	734,588			714,466			661,451			615,249			540,280
Income before income taxes	843,917			818,696			735,100			572,188			578,721
Income tax expense (2)	169,882			114,995			229,476			140,511			194,044
Net income	$	674,035		$	703,701		$	505,624		$	431,677		$	384,677
Per common share:
Basic earnings	$	4.63		$	4.86		$	3.50		$	3.00		$	2.67
Diluted earnings	$	4.61		$	4.81		$	3.47		$	2.97		$	2.66
Dividends declared	$	1.06		$	0.86		$	0.80		$	0.80		$	0.80
Book value	$	34.46		$	30.52		$	26.58		$	23.78		$	21.70
Non-GAAP tangible common equity per share (3)	$	31.15		$	27.15		$	23.13		$	20.27		$	18.15
Weighted-average number of shares outstanding:
Basic	145,497			144,862			144,444			144,087			143,818
Diluted	146,179			146,169			145,913			145,172			144,512
Common shares outstanding at period-end	145,625			144,961			144,543			144,167			143,909
At year end:
Total assets (4)	$	44,196,096		$	41,042,356		$	37,121,563		$	34,788,840		$	32,350,922
Total loans (4)	$	34,778,973		$	32,385,464		$	29,053,935		$	25,526,215		$	23,675,706
Investment securities	$	3,317,214		$	2,741,847		$	3,016,752		$	3,335,795		$	3,773,226
Total deposits, excluding held-for-sale deposits	$	37,324,259		$	35,439,628		$	31,615,063		$	29,890,983		$	27,475,981
Long-term debt and finance lease liabilities	$	152,270		$	146,835		$	171,577		$	186,327		$	206,084
FHLB advances	$	745,915		$	326,172		$	323,891		$	321,643		$	1,019,424
Stockholders’ equity	$	5,017,617		$	4,423,974		$	3,841,951		$	3,427,741		$	3,122,950
Non-GAAP tangible common equity (3)	$	4,535,841		$	3,936,062		$	3,343,693		$	2,922,638		$	2,611,919
Head count (full-time equivalent)	3,294			3,196			2,933			2,838			2,804
Performance metrics:
Return on average assets (“ROA”)	1.59		%	1.83		%	1.41		%	1.30		%	1.27		%
Return on average equity (“ROE”)	14.16		%	17.04		%	13.71		%	13.06		%	12.74		%
Net interest margin	3.64		%	3.78		%	3.48		%	3.30		%	3.35		%
Efficiency ratio (5)	43.80		%	44.73		%	45.84		%	50.64		%	47.68		%
Non-GAAP efficiency ratio (3)	38.43		%	39.55		%	41.44		%	44.21		%	41.75		%
Credit quality metrics:
Allowance for loan losses	$	358,287		$	311,322		$	287,128		$	260,520		$	264,959
Allowance for loan losses to loans held-for-investment (4)	1.03		%	0.96		%	0.99		%	1.02		%	1.12		%
Non-purchased credit-impaired (“PCI”) nonperforming assets to total assets (4)	0.27		%	0.23		%	0.31		%	0.37		%	0.40		%
Net charge-offs to average loans held-for-investment	0.16		%	0.13		%	0.08		%	0.15		%	0.01		%
Selected metrics:
Total average equity to total average assets	11.21		%	10.72		%	10.30		%	9.97		%	9.95		%
Common dividend payout ratio	23.04		%	17.90		%	23.14		%	27.01		%	30.21		%
Loan-to-deposit ratio (4)	93.18		%	91.38		%	90.17		%	85.40		%	86.17		%
EWBC capital ratios:
CET1 capital	12.9		%	12.2		%	11.4		%	10.9		%	10.5		%
Tier 1 capital	12.9		%	12.2		%	11.4		%	10.9		%	10.7		%
Total capital	14.4		%	13.7		%	12.9		%	12.4		%	12.2		%
Tier 1 leverage capital	10.3		%	9.9		%	9.2		%	8.7		%	8.5		%

(1) Includes $31.5 million of pretax gain recognized from the sale of the DCB branches for 2018. Includes $71.7 million and $3.8 million of pretax gains recognized from the sales of a commercial property in California and EWIS’s insurance brokerage business, respectively, for 2017. Includes changes in FDIC indemnification asset and receivable/payable charges of $38.0 million for 2015. The Company terminated the United Commercial Bank and Washington First International Bank shared-loss agreements during 2015.

(2) Includes $30.1 million of additional tax expense to reverse certain previously claimed tax credits related to DC Solar and affiliates (“DC Solar”) tax credit investments during 2019. Includes an additional $41.7 million in income tax expense recognized during 2017 due to the enactment of the Tax Act.

(3) Tangible common equity, tangible common equity per share and adjusted efficiency ratio are non-GAAP financial measures. For a discussion of these measures, refer to Item 7. MD&A — Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures in this Form 10-K.

(4) Total assets and loans held-for-investment include PCI loans of $222.9 million, $308.0 million, $482.3 million, $642.4 million and $970.8 million as of December 31, 2019, 2018, 2017, 2016 and 2015, respectively.

(5) The efficiency ratio is noninterest expense divided by total revenue (net interest income before provision for credit losses and noninterest income).

31

2019 Financial Highlights

Noteworthy items about the Company’s performance for 2019 included:

• Earnings: 2019 net income was $674.0 million and diluted EPS was $4.61, compared with 2018 net income of $703.7 million and diluted EPS of $4.81. This $29.7 million or 4% decrease in net income was primarily due to increases in income tax expense, provision for credit losses and noninterest expense, partially offset by net interest income growth.

• Adjusted Earnings: Adjusting for non-recurring items, 2019 non-GAAP net income and non-GAAP diluted EPS were $707.9 million and $4.84, respectively, compared with $681.5 million and $4.66 for 2018, respectively, a year-over-year increase of 4%. During 2019, the Company recorded a $5.4 million net pre-tax impairment charge (equivalent to $3.8 after-tax) and $30.1 million in additional income tax expense to reverse certain previously claimed tax credits related to DC Solar. (Refer to Item 7. MD&A — Results of Operations — Income Taxes in this Form 10-K for a more detailed discussion related to the Company’s investment in DC Solar.) During 2018, the Company recognized a $31.5 million pre-tax gain from the sale of its DCB branches, equivalent to $22.2 million after-tax. (See reconciliations of non-GAAP measures presented under Item 7. MD&A — Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures in this Form 10-K.)

• Revenue: Revenue, or the sum of net interest income before provision for credit losses and noninterest income, was $1.68 billion in 2019, compared with $1.60 billion in 2018, an increase of $79.8 million or 5%. This increase was primarily due to an increase in net interest income.

32

• Net Interest Income and Net Interest Margin: 2019 net interest income was $1.47 billion, compared with 2018 net interest income of $1.39 billion, an increase of $81.3 million or 6%. 2019 net interest margin of 3.64% contracted by 14 basis points, compared with 2018 net interest margin of 3.78%. Net interest income growth was primarily driven by loan growth, partially offset by a higher cost of deposits.

• Operating Efficiency: Efficiency ratio, calculated as noninterest expense divided by revenue, was 43.80% in 2019, an improvement of 93 basis points compared with 44.73% in 2018. Adjusting for non-recurring items, amortization of tax credit and other investments, and the amortization of core deposit intangibles in both 2019 and 2018, non-GAAP efficiency ratio was 38.43% in 2019, a 112 basis point improvement from 39.55% in 2018. (See reconciliations of non-GAAP measures presented under Item 7. MD&A — Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures in this Form 10-K.)

• Tax: The 2019 annual effective income tax rate was 20.1%, compared with 14.0% in 2018. The higher effective tax rate in 2019 was primarily due to the $30.1 million reversal of certain previously claimed tax credits related to DC Solar in the second quarter of 2019.

• Profitability: ROA for 2019 and 2018 were 1.59% and 1.83%, respectively. ROE for 2019 and 2018 were 14.16% and 17.04%, respectively. Adjusting for non-recurring items, non-GAAP ROA was 1.67% for 2019, compared with 1.77% for 2018. For 2019, non-GAAP ROE was 14.87%, compared with 16.50% for 2018. (See reconciliations of non-GAAP measures presented under Item 7. MD&A — Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures in this Form 10-K.)

• Loans: Total loans were $34.78 billion as of December 31, 2019, an increase of $2.39 billion or 7% from $32.39 billion as of December 31, 2018. The largest increase in loans was in single-family residential loans, followed by CRE loans.

• Deposits: Total deposits were $37.32 billion as of December 31, 2019, an increase of $1.88 billion or 5% from $35.44 billion as of December 31, 2018. This increase was primarily due to the $1.15 billion or 13% increase in time deposits.

• Asset Quality Metrics: The allowance for loan losses was $358.3 million or 1.03% of loans held-for-investment as of December 31, 2019, compared with $311.3 million or 0.96% of loans held-for-investment as of December 31, 2018. Non-PCI nonperforming assets were $121.5 million or 0.27% of total assets as of December 31, 2019, an increase from $93.0 million or 0.23% of total assets as of December 31, 2018. For 2019, net charge-offs were $52.8 million or 0.16% of average loans held-for-investment, compared with $40.1 million or 0.13% of average loans held-for-investment for 2018.

• Capital Levels: Our capital levels are strong. As of December 31, 2019, all of the Company’s and the Bank’s regulatory capital ratios were well above the required well-capitalized levels. See Item 7. MD&A — Balance Sheet Analysis — Regulatory Capital and Ratios in this Form 10-K for more information regarding capital.

• Cash Dividend: Our annual cash dividend on common stock was $1.055 per share in 2019, compared with $0.86 per share in 2018, an increase of $0.195 or 23%. The Company returned $155.1 million and $126.0 million in cash dividends to stockholders during 2019 and 2018, respectively.

Results of Operations

Net Interest Income

The Company’s primary source of revenue is net interest income, which is the difference between interest income earned on interest-earning assets less interest expense paid on interest-bearing liabilities. Net interest margin is the ratio of net interest income to average interest-earning assets. Net interest income and net interest margin are impacted by several factors, including changes in average balances and composition of interest-earning assets and funding sources, market interest rate fluctuations and slope of the yield curve, repricing characteristics and maturity of interest-earning assets and interest-bearing liabilities, volume of noninterest-bearing sources of funds and asset quality.

33

Net interest income for 2019 was $1.47 billion, an increase of $81.3 million or 6%, compared with $1.39 billion in 2018. The increase in net interest income for 2019 was primarily driven by loan growth and higher loan yields, partially offset by a higher cost of deposits. Net interest income for 2018 was $1.39 billion, an increase of $201.4 million or 17%, compared with $1.19 billion in 2017. The increase in net interest income for 2018 was primarily due to the expansion of loan yields and loan growth, partially offset by a higher cost of funds. Net interest margin for 2019 was 3.64%, a 14 basis point decrease from 3.78% in 2018. Net interest margin for 2018 increased 30 basis points from 3.48% in 2017.

Average loan yield for 2019 was 5.15%, an 18 basis point increase from 4.97% in 2018. Average loan yield in 2018 increased 57 basis points from 4.40% in 2017. The increases in the average loan yield in 2019 and 2018 reflected the upward repricing of the Company’s loan portfolio in response to higher short-term interest rates during the periods. Approximately 64%, 66% and 69% of total loans were variable-rate or hybrid that were in their adjustable rate periods as of December 31, 2019, 2018 and 2017, respectively. The increase in the 2019 average loan yield was primarily due to the higher prime rate during the first half of 2019, which increased the yield on prime-based loans. Approximately 32% of loans were tied to the prime index as of December 31, 2019. Average loans were $33.37 billion in 2019, an increase of $3.14 billion or 10% from $30.23 billion in 2018. Average loans in 2018 increased $2.98 billion or 11% from $27.25 billion in 2017. Loan growth in both 2019 and 2018 was broad-based across single-family residential, commercial and industrial (“C&I”) and CRE loan portfolios.

Average interest-earning assets were $40.32 billion in 2019, an increase of $3.61 billion or 10% from $36.71 billion in 2018. This was primarily due to increases of $3.14 billion in average loans and $441.5 million in average interest-bearing cash and deposits with banks. Average interest-earning assets were $36.71 billion in 2018, an increase of $2.67 billion or 8% from $34.03 billion in 2017. This was primarily due to increases of $2.98 billion in average loans and $367.2 million in average interest-bearing cash and deposits with banks, partially offset by decreases of $417.9 million in average securities purchased under resale agreements (“resale agreements”) and $253.5 million in average investment securities.

Deposits are an important source of funds and impact both net interest income and net interest margin. Average noninterest-bearing demand deposits totaled $10.50 billion in 2019, compared with $11.09 billion in 2018, a decrease of $586.9 million or 5%. Average noninterest-bearing demand deposits in 2018 increased $461.8 million or 4% from $10.63 billion in 2017. Average noninterest-bearing demand deposits made up 29%, 33% and 34% of average total deposits in 2019, 2018 and 2017, respectively. Average interest-bearing deposits of $25.54 billion in 2019 increased $3.40 billion or 15% from $22.14 billion in 2018. Average interest-bearing deposits in 2018 increased $1.95 billion or 10% from $20.19 billion in 2017.

The average cost of funds was 1.12%, 0.78% and 0.44% in 2019, 2018 and 2017, respectively. The year-over-year increases in the average cost of funds were primarily due to increases in the cost of interest-bearing deposits. The average cost of interest-bearing deposits increased 41 basis points to 1.47% in 2019, and 48 basis points to 1.06% in 2018, up from 0.58% in 2017. Other sources of funding included in the calculation of the average cost of funds primarily consist of FHLB advances, long-term debt and securities sold under repurchase agreements (“repurchase agreements”).

The Company utilizes various tools to manage interest rate risk. Refer to the “Interest Rate Risk Management” section of Item 7. MD&A — Risk Management — Market Risk Management for details.

34

The following table presents the interest spread, net interest margin, average balances, interest income and expense, and the average yield/rate by asset and liability component in 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019							2018							2017
	Average Balance			Interest		Average Yield/ Rate		Average Balance			Interest		Average Yield/ Rate		Average Balance			Interest		Average Yield/ Rate
ASSETS
Interest-earning assets:
Interest-bearing cash and deposits with banks	$	3,050,954		$	66,760	2.19	%	$	2,609,463		$	54,804	2.10	%	$	2,242,256		$	33,390	1.49	%
Resale agreements (1)	969,384			27,819		2.87	%	1,020,822			29,328		2.87	%	1,438,767			32,095		2.23	%
Investment securities (2)(3)	2,850,476			67,838		2.38	%	2,773,152			60,911		2.20	%	3,026,693			58,670		1.94	%
Loans (4)(5)	33,373,136			1,717,415		5.15	%	30,230,014			1,503,514		4.97	%	27,252,756			1,198,440		4.40	%
Restricted equity securities	76,854			2,468		3.21	%	73,691			3,146		4.27	%	73,593			2,524		3.43	%
Total interest-earning assets	$	40,320,804		$	1,882,300	4.67	%	$	36,707,142		$	1,651,703	4.50	%	$	34,034,065		$	1,325,119	3.89	%
Noninterest-earning assets:
Cash and due from banks	471,060							445,768							395,092
Allowance for loan losses	(330,125		)					(298,600		)					(272,765		)
Other assets	2,023,146							1,688,259							1,631,221
Total assets	$	42,484,885						$	38,542,569						$	35,787,613
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities:
Checking deposits (6)	$	5,244,867		$	58,168	1.11	%	$	4,477,793		$	34,657	0.77	%	$	3,951,930		$	18,305	0.46	%
Money market deposits (6)	8,220,236			111,081		1.35	%	7,985,526			83,696		1.05	%	8,026,347			44,181		0.55	%
Saving deposits (6)	2,118,060			9,626		0.45	%	2,245,644			8,621		0.38	%	2,369,398			6,431		0.27	%
Time deposits (6)	9,961,289			196,927		1.98	%	7,431,749			107,778		1.45	%	5,838,382			47,474		0.81	%
Federal funds purchased and other short-term borrowings	44,881			1,763		3.93	%	32,222			1,398		4.34	%	34,546			1,003		2.90	%
FHLB advances	592,257			16,697		2.82	%	327,435			10,447		3.19	%	391,480			7,751		1.98	%
Repurchase agreements (1)	74,926			13,582		18.13	%	50,000			12,110		24.22	%	140,000			9,476		6.77	%
Long-term debt and finance lease liabilities	152,445			6,643		4.36	%	159,185			6,488		4.08	%	178,882			5,429		3.03	%
Total interest-bearing liabilities	$	26,408,961		$	414,487	1.57	%	$	22,709,554		$	265,195	1.17	%	$	20,930,965		$	140,050	0.67	%
Noninterest-bearing liabilities and stockholders’ equity:
Demand deposits (6)	10,502,618							11,089,537							10,627,718
Accrued expenses and other liabilities	812,461							612,656							541,717
Stockholders’ equity	4,760,845							4,130,822							3,687,213
Total liabilities and stockholders’ equity	$	42,484,885						$	38,542,569						$	35,787,613
Interest rate spread						3.10	%						3.33	%						3.22	%
Net interest income and net interest margin				$	1,467,813	3.64	%				$	1,386,508	3.78	%				$	1,185,069	3.48	%

(1) Average balances of resale and repurchase agreements are reported net, pursuant to Accounting Standards Codification (“ASC”) 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. The weighted-average yields of gross resale agreements were 2.65%, 2.63% and 2.19% for 2019, 2018 and 2017, respectively. The weighted-average interest rates of gross repurchase agreements were 4.74%, 4.46% and 3.48% for 2019, 2018 and 2017, respectively.

(2) Yields on tax-exempt securities are not presented on a tax-equivalent basis.

(3) Includes the amortization of premiums on investment securities of $10.9 million, $16.1 million and $21.2 million for 2019, 2018 and 2017, respectively.

(4) Average balances include nonperforming loans and loans held-for-sale.

(5) Includes the accretion of net deferred loan fees, unearned fees, ASC 310-30 discounts and amortization of premiums, which totaled $36.8 million, $39.2 million and $30.8 million for 2019, 2018 and 2017, respectively.

(6) Average balance of deposits for 2018 and 2017 includes average deposits held-for-sale related to the sale of the DCB branches.

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The following table summarizes the extent to which changes in (1) interest rates; and (2) average interest-earning assets and average interest-bearing liabilities affected the Company’s net interest income for the periods presented. The total change for each category of interest-earning assets and interest-bearing liabilities is segmented into changes attributable to variations in volume and interest rates. Changes that are not solely due to either volume or rate are allocated proportionally based on the absolute value of the change related to average volume and average rate. Nonaccrual loans are included in average loans to compute the table below:

($ in thousands)	Year Ended December 31,
	2019 vs. 2018									2018 vs. 2017
	Total Change			Changes Due to						Total Change			Changes Due to
				Volume			Yield/Rate						Volume			Yield/Rate
Interest-earning assets:
Interest-bearing cash and deposits with banks	$	11,956		$	9,584		$	2,372		$	21,414		$	6,108		$	15,306
Resale agreements	(1,509		)	(1,476		)	(33		)	(2,767		)	(10,671		)	7,904
Investment securities	6,927			1,734			5,193			2,241			(5,167		)	7,408
Loans	213,901			160,392			53,509			305,074			138,724			166,350
Restricted equity securities	(678		)	130			(808		)	622			3			619
Total interest and dividend income	$	230,597		$	170,364		$	60,233		$	326,584		$	128,997		$	197,587
Interest-bearing liabilities:
Checking deposits	$	23,511		$	6,666		$	16,845		$	16,352		$	2,706		$	13,646
Money market deposits	27,385			2,526			24,859			39,515			(226		)	39,741
Saving deposits	1,005			(511		)	1,516			2,190			(351		)	2,541
Time deposits	89,149			43,130			46,019			60,304			15,579			44,725
Federal funds purchased and other short-term borrowings	365			507			(142		)	395			(71		)	466
FHLB advances	6,250			7,590			(1,340		)	2,696			(1,432		)	4,128
Repurchase agreements	1,472			5,028			(3,556		)	2,634			(9,226		)	11,860
Long-term debt	155			(282		)	437			1,059			(648		)	1,707
Total interest expense	$	149,292		$	64,654		$	84,638		$	125,145		$	6,331		$	118,814
Change in net interest income	$	81,305		$	105,710		$	(24,405	)	$	201,439		$	122,666		$	78,773

Noninterest Income

The following table presents the components of noninterest income for the periods indicated:

($ in thousands)	Year Ended December 31,
	2019		2018		2017		2019 vs. 2018 % Change		2018 vs. 2017 % Change
Lending fees	$	63,670	$	59,758	$	58,395	7	%	2	%
Deposit account fees	38,648		39,176		40,299		(1	)%	(3	)%
Foreign exchange income	26,398		21,259		9,908		24	%	115	%
Wealth management fees	16,668		13,785		13,974		21	%	(1	)%
Interest rate contracts and other derivative income	39,865		18,980		17,671		110	%	7	%
Net gains on sales of loans	4,035		6,590		8,870		(39	)%	(26	)%
Net gains on sales of AFS investment securities	3,930		2,535		8,037		55	%	(68	)%
Net gains on sales of fixed assets	114		6,683		77,388		(98	)%	(91	)%
Net gain on sale of business	—		31,470		3,807		(100	)%	NM
Other investment income	5,249		1,207		3,903		335	%	(69	)%
Other income	10,800		9,466		15,496		14	%	(39	)%
Total noninterest income	$	209,377	$	210,909	$	257,748	(1	)%	(18	)%

NM — Not meaningful

36

Noninterest income represented 12%, 13% and 18% of total revenue for 2019, 2018 and 2017, respectively. 2019 noninterest income was $209.4 million, a decrease of $1.5 million or 1%, compared with $210.9 million in 2018. This decrease was primarily due to a decrease in net gain on sale of business and a decrease in net gains on sales of fixed assets, partially offset by increases in interest rate contracts and other derivative income, and foreign exchange income. 2018 noninterest income was $210.9 million, a decrease of $46.8 million or 18%, compared with $257.7 million in 2017. This decrease was primarily due to decreases in net gains on sales of fixed assets, other income, and net gains on sales of AFS investment securities, partially offset by increases in net gain on sale of business and foreign exchange income.

Foreign exchange income increased $5.1 million or 24% to $26.4 million in 2019, primarily driven by an increased volume of foreign exchange transactions, partially offset by revaluation losses of certain foreign currency-denominated balance sheet items. The $11.4 million or 115% increase in foreign exchange income to $21.3 million in 2018 was primarily due to the favorable revaluation of certain foreign currency-denominated balance sheet items, partially offset by a decrease in foreign exchange derivative gains.

Interest rate contracts and other derivative income increased $20.9 million or 110% to $39.9 million in 2019, which primarily reflected strong customer demand for interest rate swaps in response to the inverted yield curve and overall low level of interest rates. This increase was partially offset by the fair value changes of the interest rate derivative contracts that were primarily driven by the decline in long-term interest rates. The $1.3 million or 7% increase in interest rate contracts and other derivative income from $17.7 million in 2017 to $19.0 million in 2018 was primarily related to energy commodity contracts which the Bank began offering during the year.

Net gains on sales of AFS investment securities increased $1.4 million or 55% to $3.9 million in 2019, and decreased $5.5 million or 68% from $8.0 million in 2017 to $2.5 million in 2018. These changes were primarily due to the quantities of AFS investment securities sold each year.

Net gains on sales of fixed assets decreased to $114 thousand in 2019, down from $6.7 million in 2018. This was due to the Company’s adoption of ASU 2016-02, Leases (Topic 842) on January 1, 2019, under which deferred gains on sale and leaseback transactions were no longer amortized to gain on sales of fixed assets in 2019. In 2017, net gains on sales of fixed assets included the $71.7 million pre-tax gain recognized from the sale of a commercial property in California. During 2017, East West Bank completed the sale and leaseback of a commercial property in California for cash consideration of $120.6 million and entered into a lease agreement for part of the property, consisting of a retail branch and office facilities.

Net gain on sale of business in 2018 reflected the $31.5 million pre-tax gain recognized from the sale of the Bank’s eight DCB branches while the net gain on sale of business in 2017 reflected the $3.8 million pre-tax gain recognized from the sale of the EWIS insurance brokerage business, as discussed in Note 2 — Dispositions to the Consolidated Financial Statements in this Form 10-K.

Other income increased $1.3 million or 14% to $10.8 million in 2019, primarily due to interest earned on cash collateral. The $6.0 million or 39% decrease in other income to $9.5 million in 2018 was primarily due to a decrease in rental income due to the aforementioned sale of the commercial property in California.

37

Noninterest Expense

The following table presents the components of noninterest expense for the periods indicated:

	Year Ended December 31,
($ in thousands)	2019		2018		2017		2019 vs. 2018 % Change		2018 vs. 2017 % Change
Compensation and employee benefits	$	401,700	$	379,622	$	335,291	6	%	13	%
Occupancy and equipment expense	69,730		68,896		64,921		1	%	6	%
Deposit insurance premiums and regulatory assessments	12,928		21,211		23,735		(39	)%	(11	)%
Legal expense	8,441		8,781		11,444		(4	)%	(23	)%
Data processing	13,533		13,177		12,093		3	%	9	%
Consulting expense	9,846		11,579		14,922		(15	)%	(22	)%
Deposit related expense	14,175		11,244		9,938		26	%	13	%
Computer software expense	26,471		22,286		18,183		19	%	23	%
Other operating expense	92,249		88,042		82,974		5	%	6	%
Amortization of tax credit and other investments	85,515		89,628		87,950		(5	)%	2	%
Total noninterest expense	$	734,588	$	714,466	$	661,451	3	%	8	%

2019 noninterest expense was $734.6 million, an increase of $20.1 million or 3%, compared with $714.5 million in 2018. This increase was primarily due to increases in compensation and employee benefits, computer software expense, deposit related expenses and other operating expense, partially offset by lower deposit insurance premiums and regulatory assessments and a decrease in amortization of tax credit and other investments. 2018 noninterest expense of $714.5 million, increased $53.0 million or 8%, compared with $661.5 million in 2017. This increase was primarily due to increases in compensation and employee benefits, other operating expense and computer software expense.

Compensation and employee benefits increased $22.1 million or 6% to $401.7 million in 2019 from $379.6 million in 2018, and increased $44.3 million or 13% from $335.3 million in 2017. These increases were primarily attributable to the annual employee merit increases and staffing growth to support the Company’s growing business. The larger increase in 2018, compared with 2017, was primarily due to an increase in stock-based compensation and severance costs recognized in 2018 as a result of the departure of one of the Company’s executives.

Deposit insurance premiums and regulatory assessments decreased $8.3 million or 39% to $12.9 million in 2019, and decreased $2.5 million or 11% to $21.2 million in 2018. These decreases were primarily due to lower FDIC assessment rates. Effective October 1, 2018, the FDIC eliminated the temporary surcharge applied on the larger banks’ assessment base.

Computer software expense increased $4.2 million or 19% to $26.5 million in 2019, and increased $4.1 million or 23% to $22.3 million in 2018. The increases in both 2019 and 2018 were due to new system implementations and software upgrades to support the Company’s growing business.

Other operating expense primarily consists of marketing, travel, telecommunication and postage expenses, charitable contributions, loan related expenses and other miscellaneous expense categories. The $4.2 million or 5% increase to $92.2 million in 2019, was primarily due to an increase in marketing expense and a decrease in gains on sale of other real estate owned (“OREO”), partially offset by a decrease in charitable contributions. Other operating expense increased $5.1 million or 6% to $88.0 million in 2018 primarily due to increases in charitable contributions, marketing, travel, and telecommunication and postage expenses, partially offset by an increase in gains on sale of OREO.

Amortization of tax credit and other investments decreased $4.1 million or 5% from $89.6 million in 2018 to $85.5 million in 2019. This decrease in 2019 compared with 2018, was primarily due to fewer tax credit investments placed in service during 2019, partially offset by $7.6 million of OTTI charges related to five historic tax credit investments and a CRA investment and the $5.4 million net write-off of the DC Solar tax credit investments. The $1.7 million or 2% increase in amortization of tax credit and other investments to $89.6 million in 2018, compared with 2017, was primarily due to an increase in renewable energy tax credit investments placed in service in 2018, partially offset by a reduction in historical tax credit investments.

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Income Taxes

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Income before income taxes	$	843,917		$	818,696		$	735,100
Income tax expense	$	169,882		$	114,995		$	229,476
Effective tax rate	20.1		%	14.0		%	31.2		%

The increase in 2019 effective tax rate and income tax expense, compared with 2018, was primarily due to $30.1 million of income tax expense recorded to reverse certain previously claimed tax credits related to the Company’s investment in DC Solar, as well as $14.7 million decrease in tax credits recognized from investments in renewable energy and historic rehabilitation tax credit projects as further discussed below. Excluding the $30.1 million income tax expense, 2019 non-GAAP effective tax rate was 16.6%. The 2018 effective tax rate of 14.0%, compared to 2017 effective tax rate of 31.2%, reflected the reduction of the U.S. federal income tax rate from 35% in 2017 to 21% in 2018 as a result of the Tax Act enactment in December 2017. GAAP requires companies to recognize the effect of tax law changes on deferred tax assets and liabilities and other recognized assets in the period of enactment. During the year ended December 31, 2017, the Company recorded $41.7 million in income tax expense related to the impact of the Tax Act, of which this amount was primarily related to the remeasurements of certain deferred tax assets and liabilities of $33.1 million, as well as the remeasurements of tax credits and other tax benefits related to qualified affordable housing partnerships of $7.9 million, resulting in an effective tax rate of 31.2% during 2017. Excluding the $41.7 million in income tax expense related to the impact of the Tax Act, 2017 non-GAAP effective tax rate was 25.5%. See reconciliations of non-GAAP measures presented under Item 7. MD&A — Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures in this Form 10-K. In December 2017, the SEC staff issued Staff Accounting Bulletin No.118 (“SAB 118”). SAB 118 allows the recording of a provisional estimate to reflect the income tax impact of the U.S. tax legislation and provides a measurement period up to one year from the enactment date. During 2018, management finalized its assessment of the initial impact of the Tax Act, which resulted in an increase in income tax expense by $985 thousand during the same period ensuing from the remeasurements of deferred tax assets and liabilities. The overall impact of the Tax Act was a one-time increase in income tax expense of $42.7 million.

Management regularly reviews the Company’s tax positions and deferred tax balances. Factors considered in this analysis include the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes) and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. The Company accounts for income taxes using the asset and liability approach, the objective of which is to establish deferred tax assets and liabilities for the temporary differences between the financial reporting basis and the tax basis of the Company’s assets and liabilities at enacted tax rates expected to be in effect when such amounts are realized and settled. Net deferred tax assets decreased $11.2 million or 9% to $106.5 million as of December 31, 2019, compared with $117.6 million as of December 31, 2018, mainly attributable to the decreases in tax credit carryover and unrealized loss on securities, offset by the write-off of deferred tax liabilities related to DC Solar.

A valuation allowance is used, as needed, to reduce the deferred tax assets to the amount that is more-likely-than-not to be realized. To determine whether a valuation allowance is needed, the Company considers evidence such as the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes), and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. The Company expects to have sufficient taxable income in future years to fully realize its deferred tax assets. The Company also performed an overall assessment by weighing all positive evidence against all negative evidence and concluded that it is more-likely-than-not that all of the benefits of the deferred tax assets will be realized, with the exception of the deferred tax assets related to certain state net operating losses (“NOL”) carryforwards. For states other than California, Georgia, Massachusetts and New York, because management believes that the state NOL carryforwards may not be fully utilized, a valuation allowance of $21 thousand and $128 thousand was recorded for such carryforwards as of December 31, 2019 and 2018, respectively. For additional details on the components of net deferred tax assets, see Note 14 — Income Taxes to the Consolidated Financial Statements.

39

Impact of Investment in DC Solar Tax Credit Funds

The Company invested in four solar energy tax credit funds in the years 2014, 2015, 2017 and 2018 as a limited member. These tax credit funds engaged in the acquisition and leasing of mobile solar generators through DC Solar entities. The Company’s investments in the DC Solar tax credit funds qualified for federal energy tax credit under Section 48 of the Internal Revenue Code of 1986, as amended. The Company also received a “should” level legal opinion from an external law firm supporting the legal structure of the investments for tax credit purposes. These investments were recorded in Investments in tax credit and other investments, net on the Consolidated Balance Sheet and were accounted for under the equity method of accounting. DC Solar had its assets frozen in December 2018 and filed for bankruptcy protection in February 2019. In February 2019, an affidavit from a Federal Bureau of Investigation special agent stated that DC Solar was operating a fraudulent “Ponzi-like scheme” and that the majority of the mobile solar generators sold to investors and managed by DC Solar, as well as the majority of the related lease revenues claimed to have been received by DC Solar might not have existed.

During the first quarter of 2019, the Company fully wrote off its tax credit investments related to DC Solar and recorded a $7.0 million OTTI charge within Amortization of tax credit and other investments on the Consolidated Statement of Income. The Company concluded at that time that there would be no material future cash flows related to these investments, in part because of the fact that DC Solar has ceased operations and its bankruptcy case had been converted from Chapter 11 to Chapter 7 on March 22, 2019. During the fourth quarter of 2019, the Company recorded a $1.6 million pre-tax impairment recovery related to DC Solar. There were no balances recorded in Accrued expenses and other liabilities — Unfunded commitments related to DC Solar as of December 31, 2019 and December 31, 2018. More discussion on the Company’s impairment evaluation and monitoring process of tax credit investments is provided in Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

ASC 740-10-25-6 states in part, that an entity shall initially recognize the financial statement effects of a tax position when it is more-likely-than-not, based on the technical merits, that the position will be sustained upon examination. The term “more-likely-than-not” means a likelihood of more than 50 percent; the terms “examined” and “upon examination” include resolution of the related appeals or litigation processes, if any. The level of evidence that is necessary and appropriate to support the technical merits of a tax position is subject to judgment and depends on available information as of the balance sheet date. The Company received a “should” level legal opinion from an external law firm supporting the legal structure of these investments for tax credit purposes. A subsequent measurement of a tax position is based on management’s best judgment given the facts, circumstances and information available at the latest quarterly reporting date. A change in judgment that results in a subsequent derecognition or change in measurement of a tax position is recognized as a discrete item in the period in which the change occurs.

Investors in DC Solar funds, including the Company, received tax credits for making renewable energy investments. Between 2014 and 2018, the Company had invested in four DC Solar energy tax credit funds and claimed tax credits of approximately $53.9 million, partially reduced by a deferred tax liability of $5.7 million related to the 50% tax basis reduction, for a net impact of $48.2 million to the Consolidated Financial Statements.

The Company, in coordination with other fund investors, engaged an unaffiliated third party inventory firm to investigate the actual number of mobile solar generators in existence. Based on the inventory report, none of the mobile service generators that had been purchased by the Company’s 2017 and 2018 tax credit funds were found. On the other hand, a vast majority of the mobile solar generators purchased by the Company’s 2014 and 2015 tax credit funds were found. Based on the inventory information, as well as management’s best judgments regarding the future settlement of the related tax positions with the IRS, the Company concluded that a portion of the previously claimed tax credits would be recaptured. During the year ended December 31, 2019, the Company reversed $33.6 million out of the $53.9 million previously claimed tax credits, and $3.5 million out of the $5.7 million deferred tax liability, resulting in $30.1 million of additional income tax expense. The Company continues to conduct an ongoing investigation related to this matter. For additional information on the risks surrounding the Company’s investments in tax-advantaged projects, see Item 1A. Risk Factors in this Form 10-K. Management regularly reviews the Company’s tax positions and deferred tax balances. Factors considered in this analysis include the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes) and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. The Company accounts for income taxes using the asset and liability approach, the objective of which is to establish deferred tax assets and liabilities for the temporary differences between the financial reporting basis and the tax basis of the Company’s assets and liabilities at enacted tax rates expected to be in effect when such amounts are realized and settled. Net deferred tax assets decreased $11.2 million or 9% to $106.5 million as of December 31, 2019, compared to $117.6 million as of December 31, 2018, mainly attributable to a decrease in tax credit carryforwards. For additional details on the components of net deferred tax assets, see Note 14 — Income Taxes to the Consolidated Financial Statements.

40

Operating Segment Results

The Company organizes its operations into three reportable operating segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. These segments are defined by the type of customers and the related products and services provided, and reflect how financial information is currently evaluated by management. For additional description of the Company’s internal management reporting process, including the segment cost allocation methodology, see Note 21 — Business Segments to the Consolidated Financial Statements in this Form 10-K.

During the first quarter of 2019, the Company enhanced its segment cost allocation methodology related to stock compensation expense and bonus accrual. Effective first quarter of 2019, stock compensation expense is allocated to all three segments, whereas it was previously recorded in the Other segment as a corporate expense. In addition, bonus expense is now allocated at a more granular level at the segment level at the time of accrual. For comparability, segment information for the years ended December 31, 2018 and 2017 have been restated to conform to the current presentation. During the third quarter of 2019, the Company enhanced its funds transfer pricing (“FTP”) methodology related to deposits by setting a minimum floor rate for the FTP credits for deposits in consideration of the flattened and inverted yield curve. This methodology has been retrospectively applied to segment financial results throughout the year of 2019. This change in FTP methodology related to deposits had no impact on 2018 and 2017 segment results.

The following tables present the selected segment information in 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Consumer and Business Banking		Commercial Banking		Other		Total
Net interest income before provision for credit losses	$	696,551	$	651,413	$	119,849	$	1,467,813
Provision for credit losses	14,178		84,507		—		98,685
Noninterest income	57,920		134,622		16,835		209,377
Noninterest expense	343,001		263,064		128,523		734,588
Segment income before income taxes	397,292		438,464		8,161		843,917
Segment net income	$	284,161	$	313,833	$	76,041	$	674,035
Average loans	$	10,647,814	$	22,725,322	$	—	$	33,373,136
Average deposits	$	25,124,827	$	8,591,285	$	2,330,958	$	36,047,070

($ in thousands)	Year Ended December 31, 2018
	Consumer and Business Banking		Commercial Banking		Other			Total
Net interest income before provision for credit losses	$	727,215	$	605,650	$	53,643		$	1,386,508
Provision for credit losses	9,364		54,891		—			64,255
Noninterest income	85,607		110,287		15,015			210,909
Noninterest expense	341,396		237,520		135,550			714,466
Segment income (loss) before income taxes	462,062		423,526		(66,892		)	818,696
Segment net income	$	330,683	$	303,553	$	69,465		$	703,701
Average loans	$	9,469,764	$	20,760,250	$	—		$	30,230,014
Average deposits	$	24,700,474	$	6,897,424	$	1,632,351		$	33,230,249

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($ in thousands)	Year Ended December 31, 2017
	Consumer and Business Banking		Commercial Banking		Other			Total
Net interest income before provision for credit losses	$	590,821	$	553,817	$	40,431		$	1,185,069
Provision for credit losses	1,812		44,454		—			46,266
Noninterest income	54,451		110,089		93,208			257,748
Noninterest expense	323,318		200,153		137,980			661,451
Segment income (loss) before income taxes	320,142		419,299		(4,341		)	735,100
Segment net income	$	187,571	$	246,404	$	71,649		$	505,624
Average loans	$	8,107,502	$	19,145,254	$	—		$	27,252,756
Average deposits	$	24,647,741	$	4,893,341	$	1,272,693		$	30,813,775

Consumer and Business Banking

The Consumer and Business Banking segment primarily provides financial products and services to consumer and commercial customers through the Company’s domestic branch network. This segment offers consumer and commercial deposits, mortgage and home equity loans, and other products and services. It also originates commercial loans for small and medium-sized enterprises through the Company’s branch network. Other products and services provided by this segment include wealth management, treasury management, and foreign exchange services.

The Consumer and Business Banking segment reported net income of $284.2 million in 2019, compared with $330.7 million in 2018. The $46.5 million or 14% decrease in segment income reflected decreases in net interest income before provision for credit losses and noninterest income, partially offset by a decrease in income tax expense. Net interest income before provision for credit losses for this segment was $696.6 million in 2019, a decrease of $30.7 million or 4%, compared with $727.2 million in 2018. This decrease was primarily due to an increase in deposit cost of funds, partially offset by the impact of loan growth. Noninterest income was $57.9 million in 2019, a decrease of $27.7 million or 32%, compared with $85.6 million in 2018. Noninterest income in 2018 included a pre-tax gain of $31.5 million recognized in 2018 from the sale of the Bank’s eight DCB branches. Excluding the impact of this non-recurring item, Consumer and Business Banking’s noninterest income in 2019 increased $3.8 million or 7% from $54.1 million in 2018. The decrease in income tax expense reflected the decrease in segment income before income taxes between 2019 and 2018. Average loans for this segment was $10.65 billion in 2019, an increase of $1.18 billion or 12% from $9.47 billion in 2018, which was primarily driven by an increase in single-family residential loans. Average deposits for this segment was $25.12 billion in 2019, which remained relatively flat as compared with average deposits of $24.7 billion in 2018.

The Consumer and Business Banking segment reported net income of $330.7 million in 2018, compared with $187.6 million in 2017. The $143.1 million or 76% increase in segment net income reflected increases in net interest income before provision for credit losses and noninterest income, partially offset by an increase in noninterest expense. Net interest income before provision for credit losses was $727.2 million in 2018, an increase of $136.4 million or 23%, compared with $590.8 million in 2017. This increase was primarily attributable to higher FTP credits received for deposits, partially offset by the impact of an increase in deposit cost of funds. Noninterest income was $85.6 million in 2018, an increase of $31.2 million or 57%, compared with $54.5 million in 2017. Excluding the impact of the aforementioned non-recurring sale of the Bank’s eight DCB branches, noninterest income in 2018 remained relatively flat compared with 2017. Noninterest expense was $341.4 million in 2018, an increase of $18.1 million or 6%, compared with $323.3 million in 2017. The increase was primarily due to an increase in compensation and employee benefits driven by increased investment in human capital and technology. Average loans for this segment were $9.47 billion in 2018, an increase of $1.36 billion or 17% from $8.11 billion in 2017, which was primarily driven by an increase in single-family residential loans. Average deposits for this segment were $24.70 billion in 2018 which remained relatively flat as compared with average deposits of $24.65 billion in 2017.

Commercial Banking

The Commercial Banking segment primarily generates commercial loans and deposits. Commercial loan products include commercial business loans and lines of credit, trade finance loans and letters of credit, CRE loans, construction lending, affordable housing loans and letters of credit, asset-based lending, and equipment financings. Commercial deposit products and other financial services include treasury management, foreign exchange services, and interest rate and commodity risk hedging.

42

The Commercial Banking segment reported net income of $313.8 million in 2019, compared with $303.6 million in 2018. The $10.3 million or 3% increase in segment net income reflected increases in net interest income before provision for credit losses and noninterest income, partially offset by increases in provision for credit losses and noninterest expense. Net interest income before provision for credit loss was $651.4 million in 2019, an increase of $45.7 million or 8%, compared with $605.7 million in 2018. This increase was primarily due to loan growth. Noninterest income was $134.6 million in 2019, an increase of $24.3 million or 22%, compared with $110.3 million in 2018. This increase was mainly attributable to an increase in interest rate contracts and other derivative income driven by strong customer demand for interest rate swaps. Provision for credit losses was $84.5 million in 2019, an increase of $29.6 million or 54%, compared with $54.9 million in 2018. This increase was primarily due to loan portfolio growth, increased charge-offs, and a downward migration in the credit risk ratings of C&I loans. Noninterest expense was $263.1 million in 2019, an increase of $25.6 million or 11%, compared with $237.5 million in 2018. The increase was primarily due to increases in compensation and employee benefits driven by increased investments in human capital to support the business growth. Average Loans for this segment were $22.73 billion in 2019, an increase of $1.97 billion or 9% from $20.76 billion in 2018, which was primarily driven by growth in C&I and CRE loans. Average deposits for this segment was $8.59 billion in 2019, an increase of $1.69 billion or 25% from $6.90 billion in 2018, which was primarily driven by growth in time deposits and interest-bearing checking deposits.

The Commercial Banking segment reported net income of $303.6 million in 2018, compared with $246.4 million in 2017. The $57.2 million or 23% increase in segment net income reflected a decrease in income tax expense and an increase in net interest income before provision for credit losses, partially offset by an increase in noninterest expense. The decrease in income tax expense was primarily due to the decrease of the effective income tax rate as a result of the enactment of the Tax Act. Net interest income before provision for credit losses was $605.7 million in 2018, an increase of $51.9 million or 9%, compared with $553.8 million in 2017. This increase was primarily attributable to loan growth and higher FTP credits received for deposits, partially offset by higher FTP charges on loans. Noninterest expense was $237.5 million in 2018, an increase of $37.3 million or 19% from $200.2 million in 2017. The increase was primarily due to increases in compensation and employee benefits driven by increased investments in human capital. Average loans for this segment were $20.76 billion in 2018, an increase of $1.61 billion or 8% from $ 19.15 billion in 2017, which was primarily driven by increases in CRE and C&I loans. Average deposits for this segment was $6.90 billion in 2018, an increase of $2.01 billion or 41% from $4.89 billion in 2017, which was primarily driven by growth in noninterest-bearing demand deposits, money market accounts and time deposits.

Other

Centralized functions, including the corporate treasury activities of the Company and eliminations of inter-segment amounts, have been aggregated and included in the Other segment, which provides broad administrative support to the two core segments, the Consumer and Business Banking and the Commercial Banking segments.

The Other segment reported segment income before income taxes of $8.2 million and segment net income of $76.0 million in 2019, reflecting an income tax benefit of $67.9 million. The Other segment reported segment loss before income taxes of $66.9 million and segment net income of $69.5 million in 2018, reflecting income tax benefit of $136.4 million. The increase in segment income before income taxes between 2019 and 2018 was primarily driven by an increase in net interest income before provision for credit losses and a decrease in noninterest expense. Net interest income before provision for credit loss was $119.8 million in 2019, an increase of $66.2 million or 123%, compared with $53.6 million in 2018. This increase reflected an increase in the net spread between the total internal FTP charges for loans and the total internal FTP credits for deposits, which widened due to the flattened and inverted yield curve in 2019. Noninterest expense was $128.5 million in 2019, a decrease of $7.0 million or 5%, compared with $135.6 million in 2018, primarily due to a decrease in compensation and employee benefits. This decrease reflected a one-time stock-based compensation and severance expense recognized in 2018.

The Other segment reported segment loss before income taxes of $66.9 million and segment net income of $69.5 million in 2018, reflecting income tax benefit of $136.4 million. The Other segment reported segment loss before income taxes of $4.3 million and segment net income of $71.6 million in 2017, reflecting income tax benefit of $76.0 million. This change in segment loss before income taxes was primarily driven by a decrease in noninterest income, partially offset by an increase in net interest income before provision for credit loss. Noninterest income was $15.0 million in 2018, a decrease of $78.2 million or 84%, compared with $93.2 million in 2017. Noninterest income in 2017 included a pre-tax gain of $71.7 million from the sale of a commercial property in California. Excluding the impact of this nonrecurring item, noninterest income for this segment decreased $6.5 million or 30% during 2018. This $6.5 million decrease was primarily driven by decreases in rental income and lower net gains on sales of AFS investment securities, partially offset by an increase in foreign exchange income due to remeasurement of balance sheet items denominated in foreign currencies. Net interest income before provision for credit loss was $53.6 million in 2018, an increase of $13.2 million or 33%, compared with $40.4 million in 2017. This increase reflected an increase in the net spread between the total internal FTP charges for loans and the total internal FTP credits for deposits provided to the Consumer and Business Banking and Commercial Banking segments.

43

The income tax expense or benefit in the Other segment consists of the remaining unallocated income tax expense or benefit after allocating income tax expense to the two core segments. Income tax expense is allocated to the Consumer and Business Banking, as well as the Commercial Banking segments by applying segment effective tax rates to the segment income before income taxes.

Balance Sheet Analysis

The following table presents a discussion of the significant changes between December 31, 2019 and 2018:

Selected Consolidated Balance Sheet Data

($ in thousands)	December 31,				Change
	2019		2018		$			%
ASSETS
Cash and cash equivalents	$	3,261,149	$	3,001,377	$	259,772		9	%
Interest-bearing deposits with banks	196,161		371,000		(174,839		)	(47	)%
Resale agreements	860,000		1,035,000		(175,000		)	(17	)%
AFS investment securities, at fair value	3,317,214		2,741,847		575,367			21	%
Restricted equity securities, at cost	78,580		74,069		4,511			6	%
Loans held-for-sale	434		275		159			58	%
Loans held-for-investment (net of allowance for loan losses of $358,287 in 2019 and $311,322 in 2018)	34,420,252		32,073,867		2,346,385			7	%
Investments in qualified affordable housing partnerships, net	207,037		184,873		22,164			12	%
Investments in tax credit and other investments, net	254,140		231,635		22,505			10	%
Premises and equipment	118,364		119,180		(816		)	(1	)%
Goodwill	465,697		465,547		150			0	%
Operating lease right-of-use assets	99,973		—		99,973			100	%
Other assets	917,095		743,686		173,409			23	%
TOTAL	$	44,196,096	$	41,042,356	$	3,153,740		8	%
LIABILITIES
Noninterest-bearing	$	11,080,036	$	11,377,009	$	(296,973	)	(3	)%
Interest-bearing	26,244,223		24,062,619		2,181,604			9	%
Total deposits	37,324,259		35,439,628		1,884,631			5	%
Short-term borrowings	28,669		57,638		(28,969		)	(50	)%
FHLB advances	745,915		326,172		419,743			129	%
Repurchase agreements	200,000		50,000		150,000			300	%
Long-term debt and finance lease liabilities	152,270		146,835		5,435			4	%
Operating lease liabilities	108,083		—		108,083			100	%
Accrued expenses and other liabilities	619,283		598,109		21,174			4	%
Total liabilities	39,178,479		36,618,382		2,560,097			7	%
STOCKHOLDERS’ EQUITY	5,017,617		4,423,974		593,643			13	%
TOTAL	$	44,196,096	$	41,042,356	$	3,153,740		8	%

As of December 31, 2019, total assets were $44.20 billion, an increase of $3.15 billion or 8% from December 31, 2018, primarily due to loan growth and an increase in AFS investment securities. The loan growth was primarily driven by strong increases in single-family residential and CRE loans. These increases were partially offset by decreases in resale agreements and interest-bearing deposits with banks.

As of December 31, 2019, total liabilities were $39.18 billion, an increase of $2.56 billion or 7% from December 31, 2018, primarily due to an increase in deposits, which was largely driven by an increase in time deposits.

As of December 31, 2019, total stockholders’ equity was $5.02 billion, an increase of $593.6 million or 13% from December 31, 2018. This increase was primarily due to $674.0 million in net income and a $39.8 million increase in accumulated other comprehensive income, partially offset by $155.3 million of cash dividends declared on common stock.

44

Investment Securities

The Company maintains an investment securities portfolio that consists of high quality and liquid securities with relatively short durations to minimize overall interest rate and liquidity risks. The Company’s AFS investment securities provide:

• interest income for earnings and yield enhancement;

• availability for funding needs arising during the normal course of business;

• the ability to execute interest rate risk management strategies in response to changes in economic or market conditions; and

• collateral to support pledging agreements as required and/or to enhance the Company’s borrowing capacity.

Available-for-Sale Investment Securities

As of December 31, 2019 and 2018, the Company’s AFS investment securities portfolio was primarily comprised of mortgage-backed securities and debt securities issued by U.S. government agency and U.S. government sponsored enterprises, foreign bonds and U.S. Treasury securities. The portfolio also included collateralized loan obligations (“CLOs”) as of December 31, 2019. Investment securities classified as AFS are carried at their fair value with the corresponding changes in fair value recorded in Accumulated other comprehensive loss, net of tax, as a component of Stockholders’ equity on the Consolidated Balance Sheet.

The following table presents the amortized cost and fair value of AFS investment securities by major categories as of December 31, 2019, 2018 and 2017:

($ in thousands)	December 31,
	2019				2018				2017
	Amortized Cost (1)		Fair Value (1)		Amortized Cost (1)		Fair Value (1)		Amortized Cost		Fair Value
AFS investment securities:
U.S. Treasury securities	$	177,215	$	176,422	$	577,561	$	564,815	$	651,395	$	640,280
U.S. government agency and U.S. government sponsored enterprise debt securities	584,275		581,245		219,485		217,173		206,815		203,392
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities	1,598,261		1,607,368		1,377,705		1,355,296		1,528,217		1,509,228
Municipal securities	101,621		102,302		82,965		82,020		99,636		99,982
Non-agency mortgage-backed securities	133,439		135,098		35,935		35,983		9,136		9,117
Corporate debt securities	11,250		11,149		11,250		10,869		37,585		37,003
Foreign bonds (1)	354,481		354,172		489,378		463,048		505,396		486,408
Asset-backed securities	66,106		64,752		12,621		12,643		—		—
CLOs	294,000		284,706		—		—		—		—
Other securities (2)	—		—		—		—		31,887		31,342
Total AFS investment securities	$	3,320,648	$	3,317,214	$	2,806,900	$	2,741,847	$	3,070,067	$	3,016,752

(1) There were no securities of a single non-governmental agency issuer that exceeded 10% of stockholder’s equity as of December 31, 2019. As of December 31, 2018, securities issued by the International Bank for Reconstruction and Development with an amortized cost of $474.9 million and a fair value of $448.6 million, exceeded 10% of stockholders’ equity.

(2) Other securities are comprised of mutual funds, which are equity securities with readily determinable fair value. Prior to the adoption of ASU 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, these securities were reported as AFS investment securities with changes in fair value recorded in other comprehensive income (loss). Upon adoption of ASU 2016-01, which became effective January 1, 2018, these securities were reclassified from AFS investment securities, at fair value to Investments in tax credit and other investments, net, on the Consolidated Balance Sheet with changes in fair value recorded in net income.

The fair value of AFS investment securities totaled $3.32 billion as of December 31, 2019, compared with $2.74 billion as of December 31, 2018. The $575.4 million or 21% increase was primarily attributable to purchases of U.S. government agency and U.S. government sponsored enterprise debt securities, U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities and CLOs, partially offset by the sales, repayments and redemptions of U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities and U.S. government agency and U.S. government sponsored enterprise debt securities, and maturities and sales of U.S. Treasury securities.

45

The Company’s investment securities portfolio had an effective duration of 3.1 years as of December 31, 2019, which shortened from 4.1 years as of December 31, 2018, primarily due to the decline in interest rates. As of December 31, 2019 and 2018, 97% and 99%, respectively, of the carrying value of the investment securities portfolio was rated “AA-” or “Aa3” or higher by nationally recognized statistical rating organizations. Credit ratings of BBB- or higher by S&P and Fitch Ratings (“Fitch”), or Baa3 or higher by Moody’s Investors Service (“Moody’s”), are considered investment grade.

The Company’s AFS investment securities are carried at fair value with changes in fair value reflected in Other comprehensive income (loss) unless a security is deemed to be OTTI. Net unrealized losses on AFS investment securities were $3.4 million as of December 31, 2019, which improved from net unrealized losses of $65.1 million as of December 31, 2018. This change was primarily due to the decrease in interest rates. Gross unrealized losses on AFS investment securities totaled $23.2 million as of December 31, 2019, compared with $70.8 million as of December 31, 2018. Of the securities with gross unrealized losses, substantially all were rated investment grade as of both December 31, 2019 and 2018, classified primarily based upon the lowest of the credit ratings issued by S&P, Moody’s, or Fitch. As of December 31, 2019, the Company had no intention to sell securities with unrealized losses and believed it was more-likely-than-not that it would not be required to sell such securities before recovery of their amortized cost.

The Company assesses individual securities for OTTI for each reporting period. There were no OTTI credit losses recognized in earnings for both 2019 and 2018. For a complete discussion and disclosure related to the Company’s investment securities, see Note 1 — Summary of Significant Accounting Policies, Note 3 — Fair Value Measurement and Fair Value of Financial Instruments, and Note 5 — Securities to the Consolidated Financial Statements in this Form 10-K.

46

The following table presents the weighted-average yields and contractual maturity distribution, excluding periodic principal payments, of the Company’s investment securities as of December 31, 2019 and 2018. Actual maturities of mortgage-backed securities can differ from contractual maturities as the borrowers have the right to prepay obligations with or without prepayment penalties. In addition, factors such as prepayments and interest rates may affect the yields on the carrying values of mortgage-backed securities.

	December 31,
($ in thousands)	2019						2018
	Amortized Cost		Fair Value		Yield (1)		Amortized Cost		Fair Value		Yield (1)
AFS investment securities:
U.S. Treasury securities:
Maturing in one year or less	$	—	$	—	—	%	$	50,134	$	49,773	1.08	%
Maturing after one year through five years	177,215		176,422		1.33	%	527,427		515,042		1.69	%
Total	177,215		176,422		1.33	%	577,561		564,815		1.64	%
U.S. government agency and U.S. government sponsored enterprise debt securities:
Maturing in one year or less	328,628		326,341		2.62	%	26,955		26,909		3.51	%
Maturing after one year through five years	158,490		156,431		2.69	%	10,181		10,037		2.18	%
Maturing after five years through ten years	44,908		45,189		2.38	%	114,771		113,812		2.30	%
Maturing after ten years	52,249		53,284		2.78	%	67,578		66,415		2.79	%
Total	584,275		581,245		2.63	%	219,485		217,173		2.59	%
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Maturing in one year or less	112		113		2.72	%	2,633		2,600		1.62	%
Maturing after one year through five years	23,144		23,289		2.29	%	30,808		30,487		2.11	%
Maturing after five years through ten years	85,970		88,261		2.72	%	96,822		95,365		2.68	%
Maturing after ten years	1,489,035		1,495,705		2.66	%	1,247,442		1,226,844		2.74	%
Total	1,598,261		1,607,368		2.66	%	1,377,705		1,355,296		2.72	%
Municipal securities (2):
Maturing in one year or less	37,136		37,291		2.67	%	29,167		28,974		2.60	%
Maturing after one year through five years	18,699		18,948		2.52	%	48,398		47,681		2.39	%
Maturing after five years through ten years	12,151		12,451		3.15	%	500		476		2.38	%
Maturing after ten years	33,635		33,612		2.63	%	4,900		4,889		5.03	%
Total	101,621		102,302		2.69	%	82,965		82,020		2.62	%
Non-agency mortgage-backed securities:
Maturing after one year through five years	7,920		7,914		3.78	%	—		—		—	%
Maturing after ten years	125,519		127,184		3.21	%	35,935		35,983		3.67	%
Total	133,439		135,098		3.24	%	35,935		35,983		3.67	%
Corporate debt securities:
Maturing in one year or less	1,250		1,262		5.20	%	1,250		1,231		5.50	%
Maturing after one year through five years	10,000		9,887		4.00	%	10,000		9,638		4.00	%
Total	11,250		11,149		4.13	%	11,250		10,869		4.17	%
Foreign bonds:
Maturing in one year or less	354,481		354,172		2.22	%	439,378		414,065		2.19	%
Maturing after one year through five years	—		—		—	%	50,000		48,983		3.12	%
Total	354,481		354,172		2.22	%	489,378		463,048		2.28	%
Asset-backed securities:
Maturing after ten years	66,106		64,752		2.65	%	12,621		12,643		3.22	%
CLOs:
Maturing after ten years	294,000		284,706		3.08	%	—		—		—	%
Total AFS investment securities	$	3,320,648	$	3,317,214	2.60	%	$	2,806,900	$	2,741,847	2.43	%
Total aggregated by maturities:
Maturing in one year or less	$	721,607	$	719,179	2.43	%	$	549,517	$	523,552	2.18	%
Maturing after one year through five years	395,468		392,891		2.11	%	676,814		661,868		1.91	%
Maturing after five years through ten years	143,029		145,901		2.65	%	212,093		209,653		2.47	%
Maturing after ten years	2,060,544		2,059,243		2.76	%	1,368,476		1,346,774		2.78	%
Total AFS investment securities	$	3,320,648	$	3,317,214	2.60	%	$	2,806,900	$	2,741,847	2.43	%

(1) Weighted-average yields are computed based on amortized cost balances.

(2) Yields on tax-exempt securities are not presented on a tax-equivalent basis.

47

Loan Portfolio

The Company offers a broad range of financial products designed to meet the credit needs of its borrowers. The Company’s loan portfolio segments include commercial loans, which consist of C&I, CRE, multifamily residential, and construction and land loans; and consumer loans, which consist of single-family residential, home equity lines of credit (“HELOCs”) and other consumer loans. Total net loans, including loans held-for-sale, were $34.42 billion as of December 31, 2019, an increase of $2.35 billion or 7% from $32.07 billion as of December 31, 2018. This was primarily driven by increases of $1.07 billion or 18% in single-family residential loans and $1.02 billion or 11% in CRE loans. The composition of the loan portfolio as of December 31, 2019 was similar as compared with December 31, 2018.

The following table presents the composition of the Company’s total loan portfolio by loan type as of the periods indicated:

($ in thousands)	December 31,
	2019					2018					2017					2016					2015
	Amount (1)			%		Amount (1)			%		Amount (1)			%		Amount (1)			%		Amount (1)			%
Commercial:
C&I	$	12,150,931		35	%	$	12,056,970		37	%	$	10,697,231		37	%	$	9,640,563		38	%	$	8,991,535		38	%
CRE:
CRE	10,278,448			30	%	9,260,199			28	%	8,758,818			31	%	7,890,368			31	%	7,471,812			32	%
Multifamily residential	2,856,374			8	%	2,470,668			8	%	2,094,255			7	%	1,711,680			6	%	1,524,367			6	%
Construction and land	628,499			2	%	538,794			2	%	659,697			2	%	674,754			3	%	628,260			3	%
Total CRE	13,763,321			40	%	12,269,661			38	%	11,512,770			40	%	10,276,802			40	%	9,624,439			41	%
Total commercial	25,914,252			75	%	24,326,631			75	%	22,210,001			77	%	19,917,365			78	%	18,615,974			79	%
Consumer:
Residential mortgage:
Single-family residential	7,108,590			20	%	6,036,454			19	%	4,646,289			16	%	3,509,779			14	%	3,069,969			13	%
HELOCs	1,472,783			4	%	1,690,834			5	%	1,782,924			6	%	1,760,776			7	%	1,681,228			7	%
Total residential mortgage	8,581,373			24	%	7,727,288			24	%	6,429,213			22	%	5,270,555			21	%	4,751,197			20	%
Other consumer	282,914			1	%	331,270			1	%	336,504			1	%	315,219			1	%	276,577			1	%
Total consumer	8,864,287			25	%	8,058,558			25	%	6,765,717			23	%	5,585,774			22	%	5,027,774			21	%
Total loans held-for-investment (2)	34,778,539			100	%	32,385,189			100	%	28,975,718			100	%	25,503,139			100	%	23,643,748			100	%
Allowance for loan losses	(358,287		)			(311,322		)			(287,128		)			(260,520		)			(264,959		)
Loans held-for-sale (3)	434					275					78,217					23,076					31,958
Total loans, net	$	34,420,686				$	32,074,142				$	28,766,807				$	25,265,695				$	23,410,747

(1) Includes net deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts of $(43.2) million, $(48.9) million, $(34.0) million, $1.2 million and $(16.0) million as of December 31, 2019, 2018, 2017, 2016 and 2015, respectively.

(2) Includes ASC 310-30 discount of $14.3 million, $22.2 million, $35.3 million, $49.4 million and $80.1 million as of December 31, 2019, 2018, 2017, 2016 and 2015, respectively.

(3) Includes $78.1 million of loans held-for-sale in Branch assets held-for-sale as of December 31, 2017.

Commercial

The commercial loan portfolio, which comprised 75% of total loans as of both December 31, 2019 and 2018, is discussed as follows.

Commercial — Commercial and Industrial Loans. C&I loans totaled $12.15 billion or 35% of total loans as of December 31, 2019 and $12.06 billion or 37% of total loans as of December 31, 2018. The C&I loan portfolio is well diversified by industry, with higher concentrations in the wholesale trade, manufacturing, energy, private equity, entertainment, and technology and life sciences. The Company monitors concentrations within C&I loan portfolio by customer exposure and industry classifications, setting diversification targets and limits for specialized portfolios. The Company’s wholesale trade exposure largely consists of U.S. domiciled companies, many of which are based in California, that import goods from Greater China for U.S. consumer consumption. The Company also had a portfolio of broadly syndicated C&I term loans, which totaled $894.6 million and $778.7 million as of December 31, 2019 and 2018, respectively. The majority of the C&I loans have variable interest rates.

48

Commercial — Commercial Real Estate Loans. CRE loans totaled $10.28 billion or 30% of total loans as of December 31, 2019, and $9.26 billion or 28% of total loans as of December 31, 2018. The Company focuses on providing financing to experienced real estate investors and developers who have moderate levels of leverage, many of whom are long-time customers. Loans are underwritten with conservative standards for cash flows, debt service coverage and loan-to-value. As of December 31, 2019 and 2018, 20% and 21%, respectively, of the total CRE loans were owner occupied properties; the remainder were non-owner occupied properties where 50% or more of the debt service for the loan is primarily provided by unaffiliated rental income from a third party. Interest rates on CRE loans may be fixed, variable or hybrid.

The following tables provide a summary of the Company’s CRE, multifamily residential, and construction and land loans by geographic market as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	CRE		%		Multifamily Residential		%		Construction and Land		%		Total		%
Geographic markets:
Southern California	$	5,446,786			$	1,728,086			$	247,170			$	7,422,042
Northern California	2,359,808				603,135				203,706				3,166,649
California	7,806,594		76	%	2,331,221		82	%	450,876		72	%	10,588,691		77	%
New York	701,902		7	%	116,923		4	%	79,962		13	%	898,787		7	%
Texas	628,576		6	%	124,646		4	%	8,604		1	%	761,826		6	%
Washington	306,247		3	%	55,913		2	%	37,552		6	%	399,712		3	%
Arizona	149,151		1	%	37,208		1	%	6,951		1	%	193,310		1	%
Nevada	102,891		1	%	138,577		5	%	40		0	%	241,508		2	%
Other markets	583,087		6	%	51,886		2	%	44,514		7	%	679,487		4	%
Total loans (1)	$	10,278,448	100	%	$	2,856,374	100	%	$	628,499	100	%	$	13,763,321	100	%

49

($ in thousands)	December 31, 2018
	CRE		%		Multifamily Residential		%		Construction and Land		%		Total		%
Geographic markets:
Southern California	$	5,106,098			$	1,512,753			$	215,370			$	6,834,221
Northern California	2,112,789				600,566				133,828				2,847,183
California	7,218,887		79	%	2,113,319		86	%	349,198		65	%	9,681,404		79	%
New York	651,510		7	%	110,840		4	%	46,702		9	%	809,052		7	%
Texas	508,473		5	%	72,585		3	%	12,055		2	%	593,113		5	%
Washington	288,522		3	%	58,294		2	%	29,079		5	%	375,895		3	%
Arizona	108,102		1	%	24,808		1	%	24,890		5	%	157,800		1	%
Nevada	94,924		1	%	44,052		2	%	47,897		9	%	186,873		2	%
Other markets	389,781		4	%	46,770		2	%	28,973		5	%	465,524		3	%
Total loans (1)	$	9,260,199	100	%	$	2,470,668	100	%	$	538,794	100	%	$	12,269,661	100	%

(1) Loans net of ASC 310-30 discount.

As illustrated by the above tables, the distribution of the CRE loan portfolio reflects the Company’s geographical footprint, with a primary concentration in California accounting for 76% and 79% of the CRE loan portfolio as of December 31, 2019 and 2018, respectively. Changes in California’s economy and real estate values could have a significant impact on the collectability of these loans and the required level of allowance for loan losses.

The Company’s CRE portfolio is broadly diversified by property type, which serves to mitigate some of the geographical concentration in California. The following table summarizes the Company’s CRE loan portfolio by property type, as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019				2018
	Amount		%		Amount		%
Property types:
Retail	$	3,300,106	32	%	$	3,171,374	34	%
Office	2,375,087		23	%	2,160,382		23	%
Industrial	2,163,769		21	%	1,883,444		20	%
Hotel/Motel	1,865,031		18	%	1,619,905		17	%
Other	574,455		6	%	425,094		6	%
Total CRE loans (1)	$	10,278,448	100	%	$	9,260,199	100	%

(1) Loans net of ASC 310-30 discount.

Commercial — Multifamily Residential Loans. Multifamily residential loans totaled $2.86 billion and $2.47 billion as of December 31, 2019 and 2018, respectively, and accounted for 8% of total loans as of both dates. The multifamily residential loan portfolio is largely made up of loans secured by residential properties with five or more units in the Bank’s primary lending areas. As of December 31, 2019 and 2018, 82% and 86%, respectively, of the Company’s multifamily residential loans were concentrated in California. The Company offers a variety of first lien mortgages, including fixed- and variable-rate loans, as well as hybrid loans with interest rates that adjust annually after an initial fixed rate period of three to seven years.

Commercial — Construction and Land Loans. Construction and land loans totaled $628.5 million and $538.8 million as of December 31, 2019 and 2018, respectively, and accounted for 2% of total loans as of both dates. Included in the portfolio were construction loans of $558.2 million with additional unfunded commitments of $351.4 million as of December 31, 2019, and construction loans of $477.2 million with additional unfunded commitments of $525.1 million as of December 31, 2018. The construction loans provide financing for hotels, offices and industrial structures. Similar to CRE and multifamily residential loans, the Company has a geographic concentration of construction and land loans in California.

50

Consumer

The following tables summarize the Company’s single-family residential and HELOC loan portfolios by geographic market as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Single- Family Residential		%		HELOCs		%		Total		%
Geographic markets:
Southern California	$	3,081,368			$	702,915			$	3,784,283
Northern California	1,038,945				309,883				1,348,828
California	4,120,313		58	%	1,012,798		69	%	5,133,111		60	%
New York	1,657,732		23	%	257,344		17	%	1,915,076		22	%
Washington	630,307		9	%	133,625		9	%	763,932		9	%
Massachusetts	235,393		3	%	31,310		2	%	266,703		3	%
Texas	188,838		3	%	—		—	%	188,838		2	%
Other markets	276,007		4	%	37,706		3	%	313,713		4	%
Total (1)	$	7,108,590	100	%	$	1,472,783	100	%	$	8,581,373	100	%
Lien priority:
First mortgage	$	7,108,588	100	%	$	1,238,186	84	%	$	8,346,774	97	%
Junior lien mortgage	2		0	%	234,597		16	%	234,599		3	%
Total (1)	$	7,108,590	100	%	$	1,472,783	100	%	$	8,581,373	100	%

($ in thousands)	December 31, 2018
	Single- Family Residential		%		HELOCs		%		Total		%
Geographic markets:
Southern California	$	2,768,725			$	839,790			$	3,608,515
Northern California	954,835				350,008				1,304,843
California	3,723,560		62	%	1,189,798		70	%	4,913,358		64	%
New York	1,165,135		19	%	279,792		17	%	1,444,927		19	%
Washington	572,017		9	%	149,579		9	%	721,596		9	%
Massachusetts	206,920		3	%	32,333		2	%	239,253		3	%
Texas	165,873		3	%	—		—	%	165,873		2	%
Other markets	202,949		4	%	39,332		2	%	242,281		3	%
Total (1)	$	6,036,454	100	%	$	1,690,834	100	%	$	7,727,288	100	%
Lien priority:
First mortgage	$	6,036,450	100	%	$	1,438,414	85	%	$	7,474,864	97	%
Junior lien mortgage	4		0	%	252,420		15	%	252,424		3	%
Total (1)	$	6,036,454	100	%	$	1,690,834	100	%	$	7,727,288	100	%

(1) Loans net of ASC 310-30 discount.

Consumer — Single-Family Residential Loans. Single-family residential loans totaled $7.11 billion or 20% of total loans as of December 31, 2019, and $6.04 billion or 19% of total loans as of December 31, 2018. The Company was in a first lien position for virtually all of the single-family residential loans as of both December 31, 2019 and 2018. Many of these loans are reduced documentation loans where a substantial down payment is required, resulting in a low loan-to-value ratio at origination, typically 60% or less. These loans have historically experienced low delinquency and default rates. As of December 31, 2019 and 2018, 58% and 62% of the Company’s single-family residential loans, respectively, were concentrated in California. The Company offers a variety of first lien mortgage loan programs, including fixed- and variable-rate loans, as well as hybrid loans with interest rates that adjust annually after an initial fixed rate period.

51

Consumer — Home Equity Lines of Credit Loans. HELOCs totaled $1.47 billion or 4% of total loans as of December 31, 2019, and $1.69 billion or 5% of total loan portfolio as of December 31, 2018. The Company was in a first lien position for 84% and 85% of total HELOCs as of December 31, 2019 and 2018, respectively. Many of the loans within this portfolio are reduced documentation loans, where a substantial down payment is required, resulting in a low loan-to-value ratio at origination, typically 60% or less. These loans have historically experienced low delinquency and default rates. As of December 31, 2019 and 2018, 69% and 70% of the Company’s HELOCs, respectively, were concentrated in California. The HELOC portfolio is comprised largely of variable-rate loans.

All commercial and consumer loans originated are subject to the Company’s underwriting guidelines and loan origination standards. Management believes that the Company’s underwriting criteria and procedures adequately consider the unique risks associated with these products. The Company conducts a variety of quality control procedures and periodic audits, including the review of lending and legal requirements, to ensure that the Company is in compliance with these requirements.

The following table presents the contractual loan maturities by loan categories and the contractual distribution of loans in those categories to changes in interest rates as of December 31, 2019:

($ in thousands)	Due within one year		Due after one year through five years		Due after five years		Total
Commercial:
C&I	$	4,376,313	$	6,365,319	$	1,409,299	$	12,150,931
CRE:
CRE	811,433		4,067,649		5,399,366		10,278,448
Multifamily residential	89,387		564,010		2,202,977		2,856,374
Construction and land	354,755		222,276		51,468		628,499
Total CRE	1,255,575		4,853,935		7,653,811		13,763,321
Total commercial	5,631,888		11,219,254		9,063,110		25,914,252
Consumer:
Residential mortgage:
Single-family residential	159		9,389		7,099,042		7,108,590
HELOCs	—		159		1,472,624		1,472,783
Total residential mortgage	159		9,548		8,571,666		8,581,373
Other consumer	193,319		75,238		14,357		282,914
Total consumer	193,478		84,786		8,586,023		8,864,287
Total loans held-for-investment (1)	$	5,825,366	$	11,304,040	$	17,649,133	$	34,778,539
Distribution of loans to changes in interest rates:
Variable-rate loans	$	4,924,842	$	9,996,181	$	8,815,263	$	23,736,286
Fixed-rate loans	900,524		1,128,812		2,362,846		4,392,182
Hybrid adjustable-rate loans	—		179,047		6,471,024		6,650,071
Total loans held-for-investment (1)	$	5,825,366	$	11,304,040	$	17,649,133	$	34,778,539

(1) Loans net of ASC 310-30 discount.

Purchased Credit-Impaired Loans

Loans acquired with evidence of credit deterioration since their origination and where it is probable that the Company will not collect all contractually required principal and interest payments are PCI loans. PCI loans are recorded at fair value at the date of acquisition. The carrying value of PCI loans totaled $222.9 million and $308.0 million as of December 31, 2019 and 2018, respectively. PCI loans are considered to be accruing due to the existence of the accretable yield, which represents the cash expected to be collected in excess of their carrying value, and which is not based on consideration given to contractual interest payments. The accretable yield was $50.5 million and $74.9 million as of December 31, 2019 and 2018, respectively. A nonaccretable difference is established for PCI loans to absorb losses expected on the contractual amounts of those loans, in excess of the fair value recorded as of the date of acquisition. Loan amounts absorbed by the nonaccretable difference do not affect the Consolidated Statement of Income or the allowance for credit losses. For additional details regarding PCI loans, see Note 7 — Loans Receivable and Allowance for Credit Losses to the Consolidated Financial Statements in this Form 10-K.

52

Loans Held-for-Sale

As of December 31, 2019 and 2018, loans held-for-sale of $434 thousand and $275 thousand, respectively, consisted of single-family residential loans. At the time of commitment to originate or purchase a loan, a loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future”, subject to periodic reviews under the Company’s evaluation processes, including asset/liability and credit risk management. If the Company subsequently changes its intent to hold certain loans, those loans are transferred from held-for-investment to held-for-sale at the lower of cost or fair value.

Loan Purchases, Transfers and Sales

All loans originated by the Company are underwritten pursuant to the Company’s policies and procedures. Although the Company’s primary focus is on directly originated loans, in certain circumstances the Company also invests in broadly syndicated and participation loans. The broadly syndicated C&I loans are marketed and sold primarily to institutional investors and generally more liquid than the Company’s directly originated loans. The Company may participate in these loans in the primary syndication market, or may purchase an interest in the post-syndication secondary market. As the Company typically receives more attractive financing terms on these loans, the Company is able to leverage the broadly syndicated portion of the loan portfolio in such a way that maximizes the levered return potential of the loan portfolio. The Company participates out interests in commercial loans to other financial institutions and also purchases participation loans from lead banks.

The following tables provide information about loan purchases, transfers and sales during the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Commercial										Consumer						Total
					CRE						Residential Mortgage
	C&I				CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans purchased	$	397,615			$	—	$	8,988	$	—	$	117,227	$	—	$	—	$	523,830
Loans transferred from held-for-investment to held-for-sale	$	245,002			$	39,062	$	—	$	1,573	$	—	$	—	$	—	$	285,637
Write-downs to allowance for loan losses	$	(789	)		$	—	$	—	$	—	$	—	$	—	$	—	$	(789	)
Loans sold:
Originated loans:
Amount	$	179,280			$	39,062	$	—	$	1,573	$	10,410	$	—	$	—	$	230,325
Net gains	$	875			$	3,045	$	—	$	—	$	115	$	—	$	—	$	4,035
Purchased loans:
Amount	$	66,511		(1)	$	—	$	—	$	—	$	—	$	—	$	—	$	66,510

53

($ in thousands)	Year Ended December 31, 2018
	Commercial									Consumer						Total
				CRE						Residential Mortgage
	C&I			CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans purchased	$	525,767		$	—	$	7,389	$	—	$	63,781	$	—	$	—	$	596,937
Loans transferred from held-for-investment to held-for-sale	$	404,321		$	62,291	$	—	$	—	$	14,981	$	—	$	—	$	481,593
Loans transferred from held-for-sale to held-for-investment	$	2,306		$	—	$	—	$	—	$	—	$	—	$	—	$	2,306
Write-downs to allowance for loan losses	$	(14,620	)	$	—	$	—	$	—	$	—	$	—	$	—	$	(14,620	)
Loans sold:
Originated loans:
Amount	$	212,485		$	62,291	$	—	$	—	$	34,966	$	—	$	—	$	309,742
Net gains	$	1,129		$	4,876	$	—	$	—	$	552	$	—	$	—	$	6,557
Purchased loans:
Amount	$	201,359		$	—	$	—	$	—	$	—	$	—	$	—	$	201,359
Net gains	$	33		$	—	$	—	$	—	$	—	$	—	$	—	$	33

($ in thousands)	Year Ended December 31, 2017
	Commercial									Consumer							Total
				CRE						Residential Mortgage
	C&I			CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans purchased	$	503,359		$	—	$	2,311	$	—	$	29,060	$	—	$	—		$	534,730
Loans transferred from held-for-investment to held-for-sale	$	476,644		$	52,217	$	531	$	1,609	$	249	$	—	$	3,706		$	534,956
Write-downs to allowance for loan losses	$	(473	)	$	—	$	—	$	—	$	—	$	—	$	—		$	(473	)
Loans sold:
Originated loans:
Amount	$	99,064		$	52,217	$	531	$	1,609	$	21,058	$	—	$	3,726		$	178,205
Net gains	$	1,740		$	6,207	$	19	$	94	$	283	$	—	$	—		$	8,343
Purchased loans:
Amount	$	377,580		$	—	$	—	$	—	$	—	$	—	$	22,179		$	399,759
Net gains (losses)	$	1,644		$	—	$	—	$	—	$	—	$	—	$	(1,056	)	$	588
Valuation adjustments  (2)	$	—		$	—	$	—	$	—	$	—	$	—	$	(61	)	$	(61	)

(1) Net gains on sales of purchased loans in 2019 were insignificant.

(2) The Company records valuation adjustments in Net gains on sales of loans on the Consolidated Statement of Income to carry the loans held-for-sale portfolio at the lower of cost or fair value.

54

Deposits and Other Sources of Funds

Deposits are the Company’s primary source of funding, the cost of which has a significant impact on the Company’s net interest income and net interest margin. Additional funding is provided by short and long-term borrowings, and long-term debt. See Item 7. MD&A — Risk Management — Liquidity Risk Management — Liquidity in this Form 10-K for a discussion of the Company’s liquidity management. The following table summarizes the Company’s sources of funds as of December 31, 2019 and 2018:

($ in thousands)	December 31,								Change
	2019				2018
	Amount		%		Amount		%		$			%
Deposits
Noninterest-bearing demand	$	11,080,036	30	%	$	11,377,009	32	%	$	(296,973	)	(3	)%
Interest-bearing checking	5,200,755		14	%	4,584,447		13	%	616,308			13	%
Money market	8,711,964		23	%	8,262,677		23	%	449,287			5	%
Savings	2,117,196		6	%	2,146,429		6	%	(29,233		)	(1	)%
Time deposits	10,214,308		27	%	9,069,066		26	%	1,145,242			13	%
Total deposits	$	37,324,259	100	%	$	35,439,628	100	%	$	1,884,631		5	%
Other Funds
Short-term borrowings	$	28,669			$	57,638			$	(28,969	)	(50	)%
FHLB advances	745,915				326,172				419,743			129	%
Repurchase agreements	200,000				50,000				150,000			300	%
Long-term debt	147,101				146,835				266			0	%
Total other funds	$	1,121,685			$	580,645			$	541,040		93	%
Total sources of funds	$	38,445,944			$	36,020,273			$	2,425,671		7	%

Deposits

The Company offers a wide variety of deposit products to both consumer and commercial customers. The Company’s deposit strategy is to grow and retain relationship-based deposits, which provides a stable and low-cost source of funding and liquidity to the Company.

Total deposits were $37.32 billion as of December 31, 2019, an increase of $1.88 billion or 5% from $35.44 billion as of December 31, 2018. This increase was primarily due to growth of $1.15 billion or 13% in time deposits. Noninterest-bearing demand deposits comprised 30% and 32% of total deposits as of December 31, 2019 and 2018, respectively. Additional information regarding the impact of deposits on net interest income and a comparison of average deposit balances and rates are provided in Item 7 — MD&A — Results of Operations — Net Interest Income in this Form 10-K.

Domestic time deposits of $100,000 or more totaled $7.01 billion, representing 19% of the total deposit portfolio as of December 31, 2019. The following table presents the maturity distribution of domestic time deposits of $100,000 or more:

($ in thousands)	December 31, 2019
3 months or less	$	2,922,242
Over 3 months through 6 months	1,829,332
Over 6 months through 12 months	1,849,287
Over 12 months	413,421
Total	$	7,014,282

Foreign time deposits in the $100,000 or greater category included (i) $611.0 million and $504.0 million of deposits held in the Company’s branch in Hong Kong as of December 31, 2019 and 2018, respectively; and (ii) $595.1 million and $701.6 million of deposits held in the Company’s subsidiary bank in China as of December 31, 2019 and 2018, respectively.

55

Other Funds

The Company’s other sources of funding consist of short-term borrowings, FHLB advances, repurchase agreements and long-term debt.

The Company had $28.7 million of short-term borrowings outstanding as of December 31, 2019, compared with $57.6 million as of December 31, 2018. This funding was entered into by the Company’s subsidiary, East West Bank (China) Limited, and will mature in 2020. As of December 31, 2019, short-term borrowings had fixed interest rates ranging from 3.65% to 3.73%.

The following table presents the selected information for short-term borrowings as of the periods indicated:

($ in thousands)	2019			2018
Year-end balance	$	28,669		$	57,638
Weighted-average rate on amount outstanding at year-end	3.69		%	4.21		%
Maximum month-end balance	$	59,225		$	58,523
Average amount outstanding	$	44,511		$	31,612
Weighted-average rate	3.90		%	4.28		%

FHLB advances were $745.9 million as of December 31, 2019, an increase of $419.7 million or 129% from $326.2 million as of December 31, 2018. As of December 31, 2019, FHLB advances had fixed and floating interest rates ranging from 1.82% to 2.34% with remaining maturities between one month and 2.9 years.

Gross repurchase agreements totaled $450.0 million as of both December 31, 2019 and 2018. Resale and repurchase agreements are reported net, pursuant to ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Net repurchase agreements totaled $200.0 million as of December 31, 2019, after netting $250.0 million of gross repurchase agreements against gross resale agreements. This compares with net repurchase agreements which totaled $50.0 million as of December 31, 2018, after netting $400.0 million of gross repurchase agreements against gross resale agreements. As of December 31, 2019, gross repurchase agreements had interest rates ranging from 4.12% to 4.21%, original terms between 4.0 years and 9.0 years and remaining maturities between 2.8 years and 3.7 years.

Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. As of December 31, 2019, the collateral for the repurchase agreements was comprised of U.S. Treasury securities and U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities. To ensure the market value of the underlying collateral remains sufficient, the Company monitors the fair value of collateral pledged relative to the principal amounts borrowed under repurchase agreements. The Company manages liquidity risks related to the repurchase agreements by sourcing funds from a diverse group of counterparties and entering into repurchase agreements with longer durations, when appropriate. For additional details, see Note 4 — Securities Purchased under Resale Agreements and Sold under Repurchase Agreements to the Consolidated Financial Statements in this Form 10-K.

The Company uses long-term debt to provide funding to acquire interest-earning assets, as well as to enhance liquidity and regulatory capital. Long-term debt totaled $147.1 million and $146.8 million as of December 31, 2019 and 2018, respectively. Long-term debt is comprised of junior subordinated debt, which qualifies as Tier 2 capital for regulatory purposes. The junior subordinated debt was issued in connection with the Company’s various pooled trust preferred securities offerings and includes the value of the common stock issued by six wholly-owned subsidiaries of the Company in conjunction with these offerings. The junior subordinated debt had a weighted-average interest rate of 3.98% and 3.77% during 2019 and 2018, respectively, with remaining maturities ranging between 14.9 years to 17.7 years as of December 31, 2019.

56

Foreign Outstandings

The Company’s overseas offices, which include the branch in Hong Kong and the subsidiary bank in China, are subject to the general risks inherent in conducting business in foreign countries, such as regulations, or economic and political uncertainties. In addition, the Company’s financial assets held in the Hong Kong branch and the subsidiary bank in China may be affected by fluctuations in currency exchange rates or other factors. The Company’s country risk exposure is largely concentrated in China and Hong Kong. The following table presents the major financial assets held in the Company’s overseas offices as of December 31, 2019, 2018 and 2017:

($ in thousands)	December 31,
	2019				2018				2017
	Amount		% of Total Consolidated Assets		Amount		% of Total Consolidated Assets		Amount		% of Total Consolidated Assets
Hong Kong Branch:
Cash and cash equivalents	$	511,639	1	%	$	360,786	1	%	$	151,631	0	%
AFS investment securities (1)	$	204,948	0	%	$	221,932	1	%	$	242,107	1	%
Loans held-for-investment (2)(3)	$	573,305	1	%	$	653,860	2	%	$	713,728	2	%
Total assets	$	1,361,652	3	%	$	1,247,207	3	%	$	1,104,497	3	%
Subsidiary Bank in China:
Cash and cash equivalents	$	548,930	1	%	$	695,527	2	%	$	626,658	2	%
Interest-bearing deposits with banks	$	142,587	0	%	$	221,000	1	%	$	188,422	1	%
Loans held-for-investment (3)	$	819,110	2	%	$	777,412	2	%	$	484,214	1	%
Total assets	$	1,520,627	3	%	$	1,700,357	4	%	$	1,303,199	4	%

(1) Comprises of foreign bonds and U.S. Treasury securities as of both December 31, 2019 and 2018. Comprised of U.S. Treasury securities, U.S. government agency and U.S. government sponsored enterprise debt securities, and foreign bonds as of December 31, 2017.

(2) Includes ASC 310-30 discount of $42 thousand, $103 thousand and $353 thousand as of December 31, 2019, 2018 and 2017, respectively.

(3) Primarily comprises of C&I loans.

The following table presents the total revenue generated by the Company’s overseas offices in 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019				2018				2017
	Amount		% of Total Consolidated Revenue		Amount		% of Total Consolidated Revenue		Amount		% of Total Consolidated Revenue
Hong Kong Branch:
Total revenue	$	33,791	2	%	$	31,122	2	%	$	28,096	2	%
Subsidiary Bank in China:
Total revenue	$	32,071	2	%	$	34,143	2	%	$	24,235	2	%

Capital

The Company maintains an adequate capital base to support its anticipated asset growth, operating needs and credit risks, and to ensure that the Company and the Bank are in compliance with all regulatory capital guidelines. The Company engages in regular capital planning processes on at least an annual basis to optimize the use of available capital and to appropriately plan for future capital needs, allocating capital to existing and future business activities. Furthermore, the Company conducts capital stress tests as part of its capital planning process. The stress tests enable the Company to assess the impact of adverse changes in the economy and interest rates on its capital base.

57

The Company’s stockholders’ equity was $5.02 billion as of December 31, 2019, an increase of $593.6 million or 13% from $4.42 billion as of December 31, 2018. The Company’s primary source of capital is the retention of its operating earnings. Retained earnings were $3.69 billion as of December 31, 2019, an increase of $529.2 million or 17% from $3.16 billion as of December 31, 2018. The increase primarily reflected $674.0 million in net income, partially offset by $155.3 million of cash dividends declared during 2019. In addition, the beginning balance of retained earnings increased $10.5 million as of January 1, 2019, because the Company recognized a cumulative adjustment related to the deferred gains on the sale and leaseback transactions, which had occurred prior to the date of adoption of ASU 2016-02, Leases (Topic 842). For other factors that contributed to the changes in stockholders’ equity, refer to Item 8. Financial Statements and Supplemental Data — Consolidated Statement of Changes in Stockholders’ Equity in this Form 10-K.

Book value was $34.46 per common share as of December 31, 2019, compared with $30.52 per common share as of December 31, 2018. Our annual cash dividend on common stock was $1.055 per share in 2019, compared with $0.86 per share in 2018, an increase of $0.195 or 23%. In January 2020, the Company’s Board of Directors declared first quarter 2020 cash dividends of $0.275 per common share. The dividend was paid on February 14, 2020 to stockholders of record as of February 3, 2020.

Regulatory Capital and Ratios

The federal banking agencies have risk-based capital adequacy guidelines intended to ensure that banking organizations maintain capital that is commensurate with the degree of risk associated with a banking organization’s operations. See Item 1. Business — Supervision and Regulation — Capital Requirements in this Form 10-K for additional details.

The Company is committed to maintaining capital at a level sufficient to assure the Company’s investors, customers and regulators that the Company and the Bank are financially sound. As of December 31, 2019 and 2018, both the Company and the Bank were considered “well-capitalized,” meeting all capital requirements on a fully phased-in basis under the Basel III Capital Rules.

The following table presents the Company’s and the Bank’s capital ratios as of December 31, 2019 and 2018 under the Basel III Capital Rules, and those required by regulatory agencies for capital adequacy and well-capitalized classification purposes:

	Basel III Capital Rules
	December 31, 2019				December 31, 2018				Minimum Regulatory Requirements		Well-Capitalized Requirements		Fully Phased- in Minimum Regulatory Requirements
	Company		East West Bank		Company		East West Bank
Risk-Based Capital Ratios:
CET 1 capital	12.9	%	12.9	%	12.2	%	12.1	%	4.5	%	6.5	%	7.0	%
Tier 1 capital	12.9	%	12.9	%	12.2	%	12.1	%	6.0	%	8.0	%	8.5	%
Total capital	14.4	%	13.9	%	13.7	%	13.1	%	8.0	%	10.0	%	10.5	%
Tier 1 leverage (1)	10.3	%	10.3	%	9.9	%	9.8	%	4.0	%	5.0	%	4.0	%

(1) The Tier 1 leverage well-capitalized requirement applies to the Bank only since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company.

In 2019, the Company’s CET1 and Tier 1 capital ratios increased by 73 basis points, the total risk-based and Tier 1 leverage capital ratios improved by 75 and 45 basis points, respectively. Tier 1 capital of $4.55 billion as of December 31, 2019 increased $579.8 million or 15% from $3.97 billion as of December 31, 2018. Total risk-based capital of $5.06 billion as of December 31, 2019 increased $625.3 million or 14% from $4.44 billion as of December 31, 2018. Total risk-weighted assets were $35.14 billion as of December 31, 2019, an increase of $2.64 billion or 8% from $32.50 billion as of December 31, 2018.

58

Other Matters

LIBOR Transition

On July 27, 2017, the United Kingdom’s FCA, which regulates the LIBOR, announced that it will no longer persuade or require banks to submit rates for the calculation of LIBOR after 2021. Given LIBOR’s extensive use across financial markets, the transition away from LIBOR presents various risks and challenges to financial markets and institutions, including to the Company. The Company’s commercial and consumer businesses issue, trade, and hold various products that are currently indexed to LIBOR. A portion of the Company’s loans, derivatives, investment securities, resale agreements, FHLB advances, and deposits, as well as all the junior subordinated debt and repurchase agreements are indexed to LIBOR and mature after 2021. The volume of the Company’s products that are indexed to LIBOR is significant, and if not sufficiently planned for, the discontinuation of LIBOR could result in financial, operational, legal, reputational or compliance risks.

The ARRC has proposed the SOFR as its preferred alternative rate for LIBOR. In early 2019, the ARRC released final recommended fallback contract language for new issuances of LIBOR indexed bilateral business loans, syndicated loans, floating-rate notes and securitizations. The International Swaps and Derivatives Association, Inc. is expected to provide guidance on fallback contract language.

Due to the uncertainty surrounding the future of LIBOR, the transition is anticipated to span several reporting periods through the end of 2021. Certain actions already taken by the Company related to the transition of LIBOR include (1) establishing a cross-functional team to identify, assess and monitor risks associated with the transition of LIBOR and other benchmark rates, (2) developing an inventory of LIBOR indexed products, and (3) implementing more robust fallback contract language for new loans, which identifies LIBOR cessation trigger events, provides for an alternative index and permits an adjustment to the margin as applicable. The Company monitors this activity and continues to evaluate the related risks. The Company’s cross-functional team also manages communication of the Company’s transition plans with both internal and external stakeholders and ensures that the Company appropriately updates its business processes, analytical tools, information systems and contract language to minimize disruption during and after the LIBOR transition. For additional information related to the potential impact surrounding the transition from LIBOR on the Company’s business, see Item 1A. Risk Factors in this Form 10-K.

Off-Balance Sheet Arrangements and Contractual Obligations

In the course of the Company’s business, the Company may enter into or be a party to transactions that are not recorded on the Consolidated Balance Sheet and are considered to be off-balance sheet arrangements. Off-balance sheet arrangements are any contractual arrangements to which a nonconsolidated entity is a party and under which the Company has: (1) any obligation under a guarantee contract; (2) a retained or contingent interest in assets transferred to an unconsolidated entity or similar arrangement that serves as credit, liquidity or market risk support to that entity for such assets; (3) any obligation under certain derivative instruments; or (4) any obligation under a material variable interest held by the Company in a nonconsolidated entity that provides financing, liquidity, market risk or credit risk support to the Company, or engages in leasing, hedging or research and development services with the Company.

Off-Balance Sheet Arrangements

Commitments to extend credit

As a financial service provider, the Company routinely enters into commitments to extend credit such as loan commitments, commercial letters of credit for foreign and domestic trade, standby letters of credit (“SBLCs”), and financial guarantees to meet the financing needs of our customers. Many of these commitments to extend credit may expire without being drawn upon. The credit policies used in underwriting loans to customers are also used to extend these commitments. Under some of these contractual agreements, the Company may also have liabilities contingent upon the occurrence of certain events. The Company’s liquidity sources have been, and are expected to be, sufficient to meet the cash requirements of its lending activities. Information about the Company’s loan commitments, commercial letters of credit and SBLCs is provided in Note 15 — Commitments, Contingencies and Related Party Transactions to the Consolidated Financial Statements in this Form 10-K.

Guarantees

In the ordinary course of business, the Company enters into various guarantee agreements in which the Company sells or securitizes loans with recourse. Under these guarantee arrangements, the Company is contingently obligated to repurchase the recourse component of the loans when the loans default. Additional information regarding guarantees is provided in Note 15 — Commitments, Contingencies and Related Party Transactions to the Consolidated Financial Statements in this Form 10-K.

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Contractual Obligations

The following table presents the Company’s significant fixed and determinable contractual obligations, along with the categories and payment dates described below as of December 31, 2019:

($ in thousands)	Payment Due by Period
	Less than 1 year		1-3 years		3-5 years		After 5 years		Indeterminate Maturity (1)		Total
On-balance sheet obligations:
Deposits	$	9,653,276	$	488,295	$	43,657	$	29,080	$	27,109,951	$	37,324,259
FHLB advances	100,000		645,915		—		—		—		745,915
Gross repurchase agreements	—		150,000		300,000		—		—		450,000
Affordable housing partnership and other tax credit investment commitments	121,875		45,498		23,898		2,538		—		193,809
Short-term borrowings	28,669		—		—		—		—		28,669
Long-term debt (2)	—		—		—		147,101		—		147,101
Operating lease liabilities	29,747		44,509		19,725		14,102		—		108,083
Finance lease liabilities	930		1,548		397		2,294		—		5,169
Projected cash payments for post-retirement benefit plan	339		708		751		7,103		—		8,901
Total on-balance sheet obligations	9,934,836		1,376,473		388,428		202,218		27,109,951		39,011,906
Off-balance sheet obligations:
Contractual interest payments (3)	201,752		78,506		22,231		62,684		—		365,173
Total off-balance sheet obligations	201,752		78,506		22,231		62,684		—		365,173
Total contractual obligations	$	10,136,588	$	1,454,979	$	410,659	$	264,902	$	27,109,951	$	39,377,079

(1) Includes deposits with no defined maturity, such as noninterest-bearing demand, interest-bearing checking, money-market and savings accounts.

(2) Represents junior subordinated debt, which is subject to call options where early redemption requires appropriate notice.

(3) Represents the future interest obligations related to interest-bearing time deposits, FHLB, gross repurchase agreements, short-term borrowings, long-term debt and financing lease liabilities in the normal course of business. These interest obligations assume no early debt redemption. The Company estimated variable interest rate payments using December 31, 2019 rates, which the company held constant until maturity.

Risk Management

Overview

In the course of conducting the Company’s businesses, the Company is exposed to a variety of risks, some of which are inherent to the financial services industry and others of which are more specific to the Company’s businesses. The Company operates under a Board approved ERM framework, which outlines its company-wide approach to risk management and oversight and describes the structures and practices employed to manage the current and emerging risks inherent to the Company. The Company’s ERM program incorporates risk management throughout the organization in identifying, managing, monitoring, and reporting risks. Our ERM program identifies EWBC’s major risk categories as capital risk, strategic risk, credit risk, liquidity risk, market risk, operational risk, reputational risk, and legal and compliance risk. ERM is comprised of senior management of the Company and headed by the Chief Risk Officer.

The Board of Directors monitors the ERM program to ensure independent review and oversight of the Company’s risk appetite and control environment. The Risk Oversight Committee provides focused oversight of the Company’s identified enterprise risk categories on behalf of the full Board of Directors. Management applies various strategies to reduce the risks to which the Company’s operations are exposed and the risks are overseen by the various management committees of which the Risk Oversight Committee is the focal point for the monitoring and review of enterprise risk.

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Our ERM program is executed along the three lines of defense model, which provides for a consistent and standardized risk management control environment enterprise-wide. The first line of defense is comprised of production, operational, and support units. The second line of defense is comprised of various risk management and control functions charged with monitoring and managing specific major risk categories and/or risk subcategories. The third line of defense is comprised of the Internal Audit function and Independent Asset Review. Internal Audit provides assurance and evaluates the effectiveness of risk management, control, and governance processes as established by the Company. Internal Audit has organizational independence and objectivity, and reports directly to the Board’s Audit Committee. Further discussion and analyses of each major risk area are included in the following sub-sections of the Risk Management.

Credit Risk Management

Credit risk is the risk that a borrower or counterparty will fail to perform according to terms and conditions of a loan or investment and expose the Company to loss. Credit risk exists with many of our assets and exposures such as loans and certain derivatives. The majority of our credit risk is associated with lending activities.

The Risk Oversight Committee has primary oversight responsibility of identifying enterprise risk categories including credit risk. The Risk Oversight Committee monitors management’s assessment of asset quality and credit risk trends, credit quality administration and underwriting standards, portfolio credit risk management and processes to enable management to control credit risk including diversification and liquidity. At the management level, the Credit Risk Management Committee has primary oversight responsibility for credit risk. The Credit Risk Management Committee keeps senior management and the Board’s Risk Oversight Committee informed about enterprise-wide credit risk issues. The Senior Credit Supervision function manages credit policy and provides the resources to manage the line of business transactional credit risk, assuring that all exposure is risk rated according to the requirements of the credit risk rating policy. The Senior Credit Supervision function reports on the overall credit risk portfolio to senior management and the Risk Oversight Committee. The Independent Asset Review function supports a strong credit risk management culture by providing independent and objective assessments of the quality of underwriting and documentation, reporting directly to the Board’s Risk Oversight Committee.

Non-PCI Nonperforming Assets

Non-PCI nonperforming assets are comprised of nonaccrual loans, OREO, and other nonperforming assets. OREO and other nonperforming assets are repossessed assets and properties acquired through foreclosure, or through full or partial satisfaction of loans held-for-investment. Generally, loans are placed on nonaccrual status when they become 90 days past due or when the full collection of principal or interest becomes uncertain regardless of the length of past due status. Collectability is generally assessed based on economic and business conditions, the borrower’s financial conditions and the adequacy of collateral, if any. For additional details regarding the Company’s non-PCI nonaccrual loan policy, see Note 1 — Summary of Significant Accounting Policies — Loans Held-for-Investment to the Consolidated Financial Statements in this Form 10-K.

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The following table presents information regarding non-PCI nonperforming assets as of the periods indicated:

($ in thousands)	December 31,
	2019			2018			2017			2016			2015
Nonaccrual loans:
Commercial:
C&I	$	74,835		$	43,840		$	69,213		$	81,256		$	64,883
CRE:
CRE	16,441			24,218			26,986			26,907			29,345
Multifamily residential	819			1,260			1,717			2,984			16,268
Construction and land	—			—			3,973			5,326			700
Total CRE	17,260			25,478			32,676			35,217			46,313
Consumer:
Residential mortgage:
Single-family residential	14,865			5,259			5,923			4,214			8,759
HELOCs	10,742			8,614			4,006			2,130			1,743
Total residential mortgage	25,607			13,873			9,929			6,344			10,502
Other consumer	2,517			2,502			2,491			—			—
Total nonaccrual loans	120,219			85,693			114,309			122,817			121,698
OREO, net	125			133			830			6,745			7,034
Other nonperforming assets	1,167			7,167			—			—			—
Total nonperforming assets	$	121,511		$	92,993		$	115,139		$	129,562		$	128,732
Non-PCI nonperforming assets to total assets (1)	0.27		%	0.23		%	0.31		%	0.37		%	0.40		%
Non-PCI nonaccrual loans to loans held-for-investment (1)	0.35		%	0.26		%	0.39		%	0.48		%	0.51		%
Troubled debt restructurings (“TDR”) included in nonperforming loans	$	54,566		$	30,315		$	62,909		$	38,983		$	53,095
Allowance for loan losses to non-PCI nonaccrual loans	298.03		%	363.30		%	251.19		%	212.12		%	217.72		%

(1) Total assets and loans held-for-investment include PCI loans of $222.9 million, $308.0 million, $482.3 million, $642.4 million and $970.8 million as of December 31, 2019, 2018, 2017, 2016 and 2015, respectively.

Period-over-period changes to nonaccrual loans represent loans that are placed on nonaccrual status in accordance with the Company’s accounting policy, offset by reductions for loans that are paid down, charged off, sold, foreclosed, or no longer classified as nonaccrual as a result of continued performance and improvement in the borrowers’ financial conditions and loan repayments. Nonaccrual loans were $120.2 million as of December 31, 2019, an increase of $34.5 million or 40% from $85.7 million as of December 31, 2018. This increase in nonaccrual loans was primarily driven by three energy loans totaling $33.0 million from our C&I loan portfolio. These loans were primarily secured by collateral. Nonaccrual loans as a percentage of loans held-for-investment increased to 0.35% as of December 31, 2019 from 0.26% as of December 31, 2018. C&I nonaccrual loans were 62% and 51% of total nonaccrual loans as of December 31, 2019 and 2018, respectively. Credit risks related to the C&I nonaccrual loans were partially mitigated by the collateral in place. As of December 31, 2019, $35.6 million or 30% of the $120.2 million non-PCI nonaccrual loans consisted of nonaccrual loans that were less than 90 days delinquent. In comparison, $23.8 million or 28% of the $85.7 million non-PCI nonaccrual loans consisted of nonaccrual loans that were less than 90 days delinquent as of December 31, 2018.

TDR are loans, where contractual terms have been modified by the Company for economic or legal reasons related to borrower’s financial difficulties, and grants a concession to the borrower that the Company would not otherwise consider. For additional details regarding the Company’s TDR policy, see Note 1 — Summary of Significant Accounting Policies — Troubled Debt Restructurings to the Consolidated Financial Statements in this Form 10-K.

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The following table presents the performing and nonperforming TDRs by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019				2018
	Performing TDRs		Nonperforming TDRs		Performing TDRs		Nonperforming TDRs
Commercial:
C&I	$	39,208	$	41,014	$	13,248	$	10,715
CRE:
CRE	5,177		11,503		6,134		17,272
Multifamily residential	3,644		229		4,300		260
Construction and land	19,691		—		—		—
Total CRE	28,512		11,732		10,434		17,532
Consumer:
Residential mortgage:
Single-family residential	7,346		1,098		8,201		325
HELOCs	2,832		722		1,342		1,743
Total residential mortgage	10,178		1,820		9,543		2,068
Total TDRs	$	77,898	$	54,566	$	33,225	$	30,315

As of December 31, 2019, performing TDRs were $77.9 million, an increase of $44.7 million or 134% from $33.2 million as of December 31, 2018. This increase mainly reflected performing C&I, construction and HELOC loans that were newly designated as TDRs and the transfer of C&I, CRE and HELOC loans from nonperforming status, partially offset by paydowns and payoffs. Nonperforming TDRs were $54.6 million as of December 31, 2019, an increase of $24.3 million or 80% from $30.3 million as of December 31, 2018. This increase reflected nonperforming C&I, single-family residential and HELOC loans that were newly designated as TDRs, partially offset by paydowns and payoffs of several nonperforming C&I and CRE loans, and the transfer of C&I, CRE and HELOC loans to performing status.

The Company’s impaired loans are predominantly made up of non-PCI loans held-for-investment on nonaccrual status and any non-PCI loans modified as a TDR, on either accrual or nonaccrual status. For additional details regarding the Company’s impaired loan policy, see Note 1 — Summary of Significant Accounting Policies — Impaired Loans to the Consolidated Financial Statements in this Form 10-K.

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The following table presents the recorded investment balances for non-PCI impaired loans as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019				2018
	Amount		%		Amount		%
Commercial:
C&I	$	114,042	58	%	$	57,088	48	%
CRE:
CRE	21,618		11	%	30,352		26	%
Multifamily residential	4,464		2	%	5,560		5	%
Construction and land	19,691		10	%	—		—	%
Total CRE	45,773		23	%	35,912		31	%
Total commercial	159,815		81	%	93,000		79	%
Consumer:
Residential mortgage:
Single-family residential	22,211		11	%	13,460		11	%
HELOCs	13,574		7	%	9,956		8	%
Total residential mortgage	35,785		18	%	23,416		19	%
Other consumer	2,517		1	%	2,502		2	%
Total consumer	38,302		19	%	25,918		21	%
Total non-PCI impaired loans	$	198,117	100	%	$	118,918	100	%

As of December 31, 2019, the allowance for loan losses included $5.6 million for impaired loans with a total recorded investment balance of $68.4 million. In comparison, the allowance for loan losses included $4.0 million for impaired loans with a total recorded investment balance of $31.1 million as of December 31, 2018.

Allowance for Credit Losses

Allowance for credit losses consists of allowance for loan losses and allowance for unfunded credit commitments. Allowance for loan losses is comprised of reserves for two components, performing loans with unidentified incurred losses, as well as nonperforming loans and TDRs (collectively, impaired loans), and excludes loans held-for-sale. The allowance for loan losses is calculated after analyzing internal historical loan loss experience, internal loan risk ratings, economic conditions, bank risks, portfolio risks and any other pertinent information. Unfunded credit reserves include reserves provided for unfunded lending commitments, SBLCs, and recourse obligations for loans sold. The allowance for credit losses is increased by the provision for credit losses, which is charged against the current period’s results of operations, and increased or decreased by the net amount of recoveries or charge-offs during the period. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. Net adjustments to the allowance for unfunded credit commitments are included in Provision for credit losses on the Consolidated Statement of Income.

The Company is committed to maintaining the allowance for credit losses at a level that is commensurate with the estimated inherent losses in the loan portfolio, including unfunded credit reserves. In addition to regular quarterly reviews of the adequacy of the allowance for credit losses, the Company performs ongoing assessments of the risks inherent in the loan portfolio. While the Company believes that the allowance for loan losses is appropriate as of December 31, 2019, future allowance levels may increase or decrease based on a variety of factors, including but not limited to, accounting standard and regulatory changes, loan growth, portfolio performance and general economic conditions. The Company adopted ASU 2016-13 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instrument on January 1, 2020. For additional information, see Note 1 — Summary of Significant Accounting Policies — Recent Accounting Pronouncements — Standards Adopted in 2020. The calculation of the allowance for credit losses involves subjective and complex judgments. For additional details about the Company’s allowance for credit losses, including the methodologies used, see Item 7. MD&A — Critical Accounting Policies and Estimates, Note 1 — Summary of Significant Accounting Policies and Note 7 — Loans Receivable and Allowance for Credit Losses to the Consolidated Financial Statements in this Form 10-K.

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The following table presents a summary of activities in the allowance for credit losses for the periods indicated:

($ in thousands)	Year Ended December 31,
	2019			2018			2017			2016			2015
Allowance for loan losses, beginning of period	$	311,322		$	287,128		$	260,520		$	264,959		$	261,679
Provision for loan losses	100,093			65,007			49,069			31,718			6,569
Gross charge-offs:
Commercial:
C&I	(73,985		)	(59,244		)	(38,118		)	(47,739		)	(20,423		)
CRE:
CRE	(1,021		)	—			—			(464		)	(1,052		)
Multifamily residential	—			—			(635		)	(29		)	(1,650		)
Construction and land	—			—			(149		)	(117		)	(493		)
Total CRE	(1,021		)	—			(784		)	(610		)	(3,195		)
Consumer:
Residential mortgage:
Single-family residential	(11		)	(1		)	(1		)	(137		)	(36		)
HELOCs	—			—			(55		)	(9		)	(98		)
Total residential mortgage	(11		)	(1		)	(56		)	(146		)	(134		)
Other consumer	(50		)	(188		)	(17		)	(13		)	(502		)
Total gross charge-offs	(75,067		)	(59,433		)	(38,975		)	(48,508		)	(24,254		)
Gross recoveries:
Commercial:
C&I	14,501			10,417			11,371			9,003			9,259
CRE:
CRE	5,209			5,194			2,111			1,488			2,488
Multifamily residential	1,856			1,757			1,357			1,476			4,298
Construction and land	536			740			259			203			4,647
Total CRE	7,601			7,691			3,727			3,167			11,433
Consumer:
Residential mortgage:
Single-family residential	136			1,214			546			401			323
HELOCs	7			38			24			7			54
Total residential mortgage	143			1,252			570			408			377
Other consumer	19			3			152			323			373
Total gross recoveries	22,264			19,363			15,820			12,901			21,442
Net charge-offs	(52,803		)	(40,070		)	(23,155		)	(35,607		)	(2,812		)
Foreign currency translation adjustments	(325		)	(743		)	694			(550		)	(477		)
Allowance for loan losses, end of period	358,287			311,322			287,128			260,520			264,959
Allowance for unfunded credit commitments, beginning of period	12,566			13,318			16,121			20,360			12,712
(Reversal of) provision for unfunded credit commitments	(1,408		)	(752		)	(2,803		)	(4,239		)	7,648
Allowance for unfunded credit commitments, end of period	11,158			12,566			13,318			16,121			20,360
Allowance for credit losses	$	369,445		$	323,888		$	300,446		$	276,641		$	285,319
Average loans held-for-investment	$	33,372,890		$	30,209,219		$	27,237,981		$	24,223,535		$	22,140,443
Loans held-for-investment	$	34,778,539		$	32,385,189		$	28,975,718		$	25,503,139		$	23,643,748
Allowance for loan losses to loans held-for-investment	1.03		%	0.96		%	0.99		%	1.02		%	1.12		%
Net charge-offs to average loans held-for-investment	0.16		%	0.13		%	0.08		%	0.15		%	0.01		%

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As of December 31, 2019, the allowance for loan losses amounted to $358.3 million or 1.03% of loans held-for-investment, compared with $311.3 million or 0.96% and $287.1 million or 0.99% of loans held-for-investment as of December 31, 2018 and 2017, respectively. The increase in the allowance for loan losses was largely due to loan portfolio growth, as well as downward migration in the credit risk ratings of C&I loans.

The provision for credit losses includes provision for loan losses and unfunded credit reserves. A provision for credit losses is charged to income to bring the allowance for credit losses to a level deemed appropriate by the Company based on the calculation methodology. The provision for credit losses was $98.7 million for 2019, compared with $64.3 million and $46.3 million for 2018 and 2017, respectively. The increase in the provision for credit losses for 2019, compared to 2018 and 2017, was reflective of the overall loan portfolio growth and increased charge-offs in C&I loans and a downward migration in the credit risk ratings of C&I loans during 2019.

The Company believes the allowance for credit losses as of December 31, 2019, 2018 and 2017 was appropriate to cover credit losses inherent in the loan portfolio, including unfunded credit commitments, on each respective date.

The following table presents the Company’s allocation of the allowance for loan losses by loan type and the ratio of each loan type to total loans held-for-investment as of the periods indicated:

($ in thousands)	December 31,
	2019				2018				2017				2016				2015
	Allowance Allocation		Loans as % of Total Loans		Allowance Allocation		Loans as % of Total Loans		Allowance Allocation		Loans as % of Total Loans		Allowance Allocation		Loans as % of Total Loans		Allowance Allocation		Loans as % of Total Loans
Commercial:
C&I	$	238,376	35	%	$	189,117	37	%	$	163,058	37	%	$	142,167	38	%	$	134,606	38	%
CRE:
CRE	40,509		30	%	40,666		28	%	40,809		31	%	47,559		31	%	58,623		32	%
Multifamily residential	22,826		8	%	19,885		8	%	19,537		7	%	17,911		6	%	19,630		6	%
Construction and land	19,404		2	%	20,290		2	%	26,881		2	%	24,989		3	%	22,915		3	%
Total CRE	82,739		40	%	80,841		38	%	87,227		40	%	90,459		40	%	101,168		41	%
Consumer:
Residential mortgage:
Single-family residential	28,527		20	%	31,340		19	%	26,362		16	%	19,795		14	%	19,665		13	%
HELOCs	5,265		4	%	5,774		5	%	7,354		6	%	7,506		7	%	8,745		7	%
Total residential mortgage	33,792		24	%	37,114		24	%	33,716		22	%	27,301		21	%	28,410		20	%
Other consumer	3,380		1	%	4,250		1	%	3,127		1	%	593		1	%	775		1	%
Total	$	358,287	100	%	$	311,322	100	%	$	287,128	100	%	$	260,520	100	%	$	264,959	100	%

The Company maintains an allowance for loan losses for both non-PCI and PCI loans. An allowance for loan losses for PCI loans is based on the Company’s estimates of cash flows expected to be collected from PCI loans. PCI loan losses are estimated collectively for groups of loans with similar characteristics. As of December 31, 2019, the Company had no allowance for loan losses on $222.9 million of PCI loans. In comparison, the Company established an allowance of $22 thousand and $58 thousand on $308.0 million and $482.3 million of PCI loans as of December 31, 2018 and 2017, respectively. The allowance balances of the PCI loans for these periods were attributed mainly to CRE loans.

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Liquidity Risk Management

Liquidity

Liquidity is a financial institution’s capacity to meet its deposit and other counterparties’ obligations as they come due, or to obtain adequate funding at a reasonable cost to meet those obligations. The objective of liquidity management is to manage the potential mismatch of asset and liability cash flows. Maintaining an adequate level of liquidity depends on the institution’s ability to efficiently meet both expected and unexpected cash flows, and collateral needs without adversely affecting daily operations or the financial condition of the institution. To achieve this objective, the Company analyzes its liquidity risk, maintains readily available liquid assets and utilizes diverse funding sources including its stable core deposit base.

The Board of Directors’ Risk Oversight Committee has primary oversight responsibility. At the management level, the Company’s Asset/Liability Committee (“ALCO”) sets the liquidity guidelines that govern the day-to-day active management of the Company’s liquidity position. The ALCO regularly monitors the Company’s liquidity status and related management processes, and provides regular reports to the Board of Directors.

Liquidity Risk — Liquidity Sources. The Company’s primary source of funding is from its deposits generated by its banking business, which is relatively stable and low-cost. Total deposits amounted to $37.32 billion as of December 31, 2019, compared with $35.44 billion as of December 31, 2018. The Company’s loan-to-deposit ratio was 93% and 91% as of December 31, 2019 and 2018, respectively. In addition, the Company has access to various sources of wholesale funding, and has borrowing capacity at the FHLB and FRB to sustain an adequate liquid asset portfolio, meet daily cash demands and allow management flexibility to execute its business strategy. Economic conditions and the stability of capital markets impact the Company’s access to and the cost of wholesale financing. The Company’s access to capital markets is also affected by the ratings received from various credit rating agencies. See Item 7 — MD&A — Balance Sheet Analysis — Deposits and Other Sources of Funds in this Form 10-K for further detail related to the Company’s funding sources.

The Company’s liquid asset portfolio includes cash and cash equivalents, interest-bearing deposits with banks, short-term resale agreements and AFS investment securities. The following table presents the Company’s liquid asset portfolio as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019						December 31, 2018
	Encumbered		Unencumbered		Total		Encumbered		Unencumbered		Total
Cash and cash equivalents	$	—	$	3,261,149	$	3,261,149	$	—	$	3,001,377	$	3,001,377
Interest-bearing deposits with banks	—		196,161		196,161		—		371,000		371,000
Short-term resale agreements	—		400,000		400,000		—		375,000		375,000
AFS investment securities	479,432		2,837,782		3,317,214		435,833		2,306,014		2,741,847
Total	$	479,432	$	6,695,092	$	7,174,524	$	435,833	$	6,053,391	$	6,489,224

Unencumbered assets totaled $6.70 billion and $6.05 billion as of December 31, 2019 and 2018, respectively. Investment securities included as part of liquidity sources are primarily comprised of mortgage-backed securities and debt securities issued by U.S. government agency and U.S. government sponsored enterprises, foreign bonds and U.S. Treasury securities. The Company believes these AFS investment securities provide quick sources of liquidity to obtain financing, regardless of market conditions, through sale or pledging.

As a means of augmenting the Company’s liquidity, the Company maintains available borrowing capacity under secured borrowing lines with the FHLB and FRB, unsecured federal funds lines of credit with various correspondent banks and several master repurchase agreements with major brokerage companies. The Company’s available borrowing capacity with the FHLB and FRB was $6.83 billion and $2.97 billion, respectively, as of December 31, 2019. Unencumbered loans and/or securities were pledged to the FHLB and FRB discount window as collateral. Eligibility of collateral is defined in guidelines from the FHLB and FRB and is subject to change at their discretion. The Bank’s unsecured federal funds lines of credit, subject to availability, totaled $600.0 million with correspondent banks as of December 31, 2019. The Company believes that its liquidity sources are sufficient to meet all reasonably foreseeable short-term needs over the next 12 months.

Liquidity Risk — Liquidity for East West. East West’s primary source of liquidity is from cash dividends by its subsidiary, East West Bank. The Bank is subject to various statutory and regulatory restrictions on its ability to pay dividends as discussed in Item 1. Business — Supervision and Regulation — Dividends and Other Transfers of Funds in this Form 10-K. The Bank paid total dividends of $190.0 million and $160.0 million to East West in 2019 and 2018, respectively.

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Liquidity Risk — Liquidity Stress Testing. Liquidity stress testing is performed at the Company level, as well as at the foreign subsidiary and foreign branch levels. Stress testing and scenario analysis are intended to quantify the potential impact of a liquidity event on the financial and liquidity position of the entity. These scenarios include assumptions about significant changes in key funding sources, market triggers and potential uses of funding and economic conditions in certain countries. In addition, Company specific events are incorporated into the stress testing. Liquidity stress tests are conducted to ascertain potential mismatches between liquidity sources and uses over a variety of time horizons, both immediate and longer term, and over a variety of stressed conditions. Given the range of potential stresses, the Company maintains a series of contingency funding plans on a consolidated basis and for individual entities. As of December 31, 2019, the Company was not aware of any trends, events or uncertainties that would or were reasonably likely to, have a material effect on its liquidity position. Furthermore, the Company is not aware of any material commitments for capital expenditures in the foreseeable future.

Consolidated Cash Flows Analysis

The following table presents a summary of the Company’s Consolidated Statement of Cash Flows for the periods indicated, which may be helpful to highlight business strategies and macro trends. In addition to this cash flow analysis, the discussion related to liquidity in Item 7. MD&A — Risk Management — Liquidity Risk Management — Liquidity may provide a more useful context in evaluating the Company’s liquidity position and related activity.

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Net cash provided by operating activities	$	735,829		$	883,172		$	703,275
Net cash used in investing activities	(2,571,176		)	(3,832,412		)	(2,506,824		)
Net cash provided by financing activities	2,124,962			3,800,808			2,068,460
Effect of exchange rate changes on cash and cash equivalents	(29,843		)	(24,783		)	31,178
Net increase in cash and cash equivalents	259,772			826,785			296,089
Cash and cash equivalents, beginning of year	3,001,377			2,174,592			1,878,503
Cash and cash equivalents, end of year	$	3,261,149		$	3,001,377		$	2,174,592

Operating Activities — Net cash provided by operating activities was $735.8 million, $883.2 million and $703.3 million in 2019, 2018 and 2017, respectively. During 2019, 2018 and 2017, net cash provided by operating activities mainly reflected inflows of $674.0 million, $703.7 million and $505.6 million from net income, respectively. During 2019, net operating cash inflows also benefited from $221.6 million in non-cash adjustments to reconcile net income to net operating cash, partially offset by $170.8 million of net changes in accrued interest receivable and other assets. In comparison, net operating cash inflows for 2018 benefited from $150.4 million in non-cash adjustments to reconcile net income to net operating cash, as well as $88.1 million of net changes in accrued expenses and other liabilities, partially offset by $60.8 million of net changes in accrued interest receivable and other assets. Net operating cash inflows for 2017 benefited from $149.2 million in non-cash adjustments to reconcile net income to net operating cash, as well as $45.4 million of net changes in accrued interest receivable and other assets.

Investing Activities — Net cash used in investing activities was $2.57 billion, $3.83 billion and $2.51 billion in 2019, 2018 and 2017, respectively. During 2019, net cash used in investing activities primarily reflected cash outflows of $2.42 billion, $521.2 million, and $146.9 million from loans held-for-investment, AFS investment securities, and investments in qualified affordable housing partnerships, tax credit and other investments, respectively. These investing cash outflows were partially offset by cash inflows of $325.0 million and $193.5 million from resale agreements and interest-bearing deposits with banks, respectively. In comparison, during 2018, net cash used in investing activities primarily reflected $3.43 billion increase in net loans held-for-investment, a $503.7 million payment for the sale of the Bank’s eight DCB branches to Flagstar Bank and $132.6 million in net fundings of investments in qualified affordable housing partnerships, tax credit and other investments, partially offset by $217.7 million of net cash inflows from AFS investment securities. During 2017, net cash used in investing activities primarily reflected cash outflows of $3.48 billion and $173.6 million from net fundings of loans held-for-investment and investments in qualified affordable housing partnerships, tax credit and other investments, respectively, partially offset by net cash inflows of $650.0 million and $417.8 million from resale agreements and AFS investment securities, respectively, and $116.0 million in cash received from the sale of a commercial property.

Financing Activities — Net cash provided by financing activities was $2.12 billion, $3.80 billion and $2.07 billion in 2019, 2018 and 2017, respectively. Net cash inflows in 2019 primarily reflected net increases of $1.90 billion in deposits and $418.0 million in FHLB advances, partially offset by $155.1 million in cash dividends paid. In comparison, net cash inflows in 2018 and 2017 primarily reflected $3.90 billion and $2.27 billion net increases in deposits, respectively, partially offset by $126.0 million and $116.8 million, respectively, in cash dividends paid.

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Market Risk Management

Market risk is the risk that the Company’s financial condition may change resulting from adverse movements in market rates or prices including: interest rates, foreign exchange rates, interest rate contracts, investment securities prices, and related risk resulting from mismatches in rate sensitive assets and liabilities.

The Board’s Risk Oversight Committee has primary oversight responsibility. At the management level, the ALCO establishes and monitors compliance with the policies and risk limits pertaining to market risk management activities. Corporate Treasury supports the ALCO in measuring, monitoring and managing interest rate risk as well as all other market risks.

Interest Rate Risk Management

Interest rate risk results primarily from the Company’s traditional banking activities of gathering deposits and extending loans, and is the primary market risk for the Company. Economic and financial conditions, movements in interest rates and consumer preferences impact the level of noninterest-bearing funding sources at the Company, and affect the difference between the interest the Company earns on interest-earning assets and pays on interest-bearing liabilities. In addition, changes in interest rates can influence the rate of principal prepayments on loans and the speed of deposit withdrawals. Due to the pricing term mismatches and the embedded options inherent in certain products, changes in market interest rates not only affect expected near-term earnings, but also the economic value of these interest-earning assets and interest-bearing liabilities. Other market risks include foreign currency exchange risk and equity price risk. These risks are not considered significant to the Company and no separate quantitative information concerning these risks is presented herein.

With oversight by the Company’s Board of Directors, the ALCO coordinates the overall management of the Company’s interest rate risk. The ALCO meets regularly and is responsible for reviewing the Company’s open market positions and establishing policies to monitor and limit exposure to market risk. Management of interest rate risk is carried out primarily through strategies involving the Company’s investment securities portfolio, loan portfolio, available funding channels and capital market activities. In addition, the Company’s policies permit the use of derivative instruments to assist in managing interest rate risk. Refer to Item 7. MD&A — Risk Management — Market Risk Management — Derivatives in this Form 10-K for additional information.

The interest rate risk exposure is measured and monitored through various risk management tools, which include a simulation model that performs interest rate sensitivity analyses under multiple interest rate scenarios. The model incorporates the Company’s cash instruments, loans, investment securities, resale agreements, deposits, borrowings and repurchase agreements, as well as financial instruments from the Company’s foreign operations. The Company incorporates both a static balance sheet and a forward growth balance sheet in order to perform these analyses. The simulated interest rate scenarios include a non-parallel shift in the yield curve (“rate shock”) and a gradual non-parallel shift in the yield curve (“rate ramp”). In addition, the Company also performs simulations using alternative interest rate scenarios, including various permutations of the yield curve flattening, steepening or inverting. Results of these various simulations are used to formulate and gauge strategies to achieve a desired risk profile within the Company’s capital and liquidity guidelines.

The net interest income simulation model is based on the actual maturity and re-pricing characteristics of the Company’s interest-rate sensitive assets, liabilities and related derivative contracts. It also incorporates various assumptions, which management believes to be reasonable but may have a significant impact on results. These assumptions include, but are not limited to, the timing and magnitude of changes in interest rates, the yield curve evolution and shape, the correlation between various interest rate indices, financial instrument future repricing characteristics and spread relative to benchmark rates, and the effect of interest rate floors and caps. The modeled results are highly sensitive to deposit decay and deposit beta assumptions, derived from a regression analysis of the Company’s historical deposit data. Deposit beta commonly refers to the correlation of the change in interest rates paid on deposits to changes in benchmark market interest rates. The model is also sensitive to the loan and investment prepayment assumptions, based on an independent model and the Company’s historical prepayment data, which consider anticipated prepayments under different interest rate environments.

Simulation results are highly dependent on input assumptions. To the extent actual behavior is different from the assumptions in the models, there could be a material change in interest rate sensitivity. The assumptions applied in the model are documented and supported for reasonableness, and periodically back-tested to assess their effectiveness. The Company makes appropriate calibrations to the model as needed, continually refining the model, methodology and results. Changes to key model assumptions are reviewed by the ALCO. Scenario results do not reflect strategies that management could employ to limit the impact of changing interest rate expectations.

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Twelve-Month Net Interest Income Simulation. Net Interest Income simulation is a modeling technique that looks at interest rate risk through earnings. It projects the changes in interest rate sensitive asset and liability cash flows, expressed in terms of Net Interest Income, over a specified time horizon for defined interest rates scenarios. Net Interest Income simulations generate insight into the impact of changes in market rates on earnings and guide risk management decisions. The Company assesses interest rate risk by comparing net interest income using different interest rate scenarios.

The following table presents the Company’s net interest income sensitivity as of December 31, 2019 and 2018 related to an instantaneous and sustained non-parallel shift in market interest rates of 100 and 200 basis points in both directions:

Change in Interest Rates (Basis Points)	Net Interest Income Volatility (1)
	December 31,
	2019		2018
+200	13.2	%	16.6	%
+100	6.7	%	8.4	%
-100	(5.5	)%	(8.3	)%
-200	(8.7	)%	(16.7	)%

(1) The percentage change represents net interest income over 12 months in a stable interest rate environment versus net interest income in the various rate scenarios.

The Company’s estimated twelve-month net interest income sensitivity as of December 31, 2019 was lower compared with December 31, 2018 for both the upward 100 and 200 basis point rate scenarios. This reflects a greater rate of upward repricing in the Company’s deposit portfolio, offsetting simulated increases in interest income from higher interest rates on assets. In both simulated downward interest rate scenarios, sensitivity decreased mainly due to the impact of the changes in the yield curve between December 31, 2019 and December 31, 2018.

The Company’s net interest income profile as of December 31, 2019 reflects an asset sensitive position. Net interest income would be expected to increase if interest rates rise and to decrease if interest rates decline. The Company is naturally asset sensitive due to the large share of variable rate loans in its loan portfolio, which are primarily linked to Prime and LIBOR indices. The Company’s interest income is vulnerable to changes in short-term interest rates. The Company’s deposit portfolio is primarily comprised of non-maturity deposits, which are not directly tied to short-term interest rate indices, but are, nevertheless, sensitive to changes in short-term interest rates.

The federal funds target rate was between 1.50% and 1.75% as of December 31, 2019 and between 2.25% and 2.50% as of December 31, 2018. In its statement released on December 11, 2019, the Federal Open Market Committee decided to maintain the target range for the federal funds rate to a range of between 1.50% to 1.75% and signaled it would stay on hold through 2020 amid muted inflation.

While an instantaneous and sustained non-parallel shift in market interest rates was used in the simulation model described in the preceding paragraphs, the Company believes that any shift in interest rates would likely be more gradual and would therefore have a more modest impact. The rate ramp table below shows the net income volatility under a gradual non-parallel shift upward and downward of the yield curve in even quarterly increments over the first twelve months, followed by rates held constant thereafter:

Change in Interest Rates (Basis Points)	Net Interest Income Volatility (1)
	December 31,
	2019		2018
+200 Rate Ramp	6.0	%	6.3	%
+100 Rate Ramp	3.0	%	3.0	%
-100 Rate Ramp	(2.6	)%	(3.0	)%
-200 Rate Ramp	(5.1	)%	(6.3	)%

(1) The percentage change represents net interest income under a gradual non-parallel shift in even quarterly increments over 12 months.

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The Company believes that the rate ramp table, shown above, when evaluated together with the results of the rate shock simulation, presents a better indication of the potential impact to the Company’s twelve-month net interest income in a rising and falling rate scenario. Between December 31, 2019 and 2018, the Company’s modeled sensitivity slightly decreased under a ramp simulation. This reflects model refinements to better incorporate the current yield curve in the analysis, as well as the gradual spreading of interest rate changes over 12 months, rather than at the end of each quarter.

Economic Value of Equity at Risk. Economic value of equity (“EVE”) is a cash flow calculation that takes the present value of all asset cash flows and subtracts the present value of all liability cash flows. This calculation is used for asset/liability management and measures changes in the economic value of the bank. The fair market values of a bank's assets and liabilities are directly linked to interest rates. In some ways, the economic value approach provides a broader scope than the net income volatility approach since it captures all anticipated cash flows.

EVE simulation reflects the effect of interest rate shifts on the value of the Company and is used to assess the degree of interest rate risk exposure. In contrast to the earnings perspective, the economic perspective identifies risk arising from repricing or maturity gaps for the life of the balance sheet. Changes in economic value indicate anticipated changes in the value of the bank’s future cash flows. Thus, the economic perspective can provide a leading indicator of the bank’s future earnings and capital values. The economic valuation method also reflects those sensitivities across the full maturity spectrum of the bank’s assets and liabilities.

The following table presents the Company’s EVE sensitivity as of December 31, 2019 and 2018 related to an instantaneous and sustained non-parallel shift in market interest rates of 100 and 200 basis points in both directions:

Change in Interest Rates (Basis Points)	EVE Volatility (1)
	December 31,
	2019		2018
+200	7.0	%	6.3	%
+100	3.6	%	1.2	%
-100	(1.4	)%	(3.1	)%
-200	(3.5	)%	(11.9	)%

(1) The percentage change represents net portfolio value of the Company in a stable interest rate environment versus net portfolio value in the various rate scenarios.

The Company’s EVE sensitivity for the upward interest rate scenarios as of December 31, 2019 increased while the sensitivity for the downward interest rate scenarios as of December 31, 2019 decreased, as compared with the results as of December 31, 2018. The changes in EVE sensitivity during this period were primarily due to the shape and level of the yield curve.

The Company’s EVE profile as of December 31, 2019 reflects an asset sensitive EVE position. Given the uncertainty of the magnitude, timing and direction of future interest rate movements, and the shape of the yield curve, actual results may vary from those predicted by the Company’s model.

Derivatives

It is the Company’s policy not to speculate on the future direction of interest rates, foreign currency exchange rates and commodity prices. However, the Company will, from time to time, enter into derivative transactions in order to reduce its exposure to market risks, primarily interest rate risk and foreign currency risk. The Company believes that these derivative transactions, when properly structured and managed, may provide a hedge against inherent risk in certain assets and liabilities and against risk in specific transactions. Hedging transactions may be implemented using a variety of derivative instruments such as swaps, forwards and options. Prior to entering into any hedging activities, the Company analyzes the costs and benefits of the hedge in comparison to alternative strategies. In addition, the Company enters into derivative transactions in order to assist customers with their risk management objectives, primarily to manage exposures to fluctuations in interest rates, foreign currencies and commodity prices. To economically hedge against the derivative contracts entered into with the Company’s customers, the Company enters into mirrored derivative contracts with third-party financial institutions. The exposures from derivative transactions are collateralized by cash and/or eligible securities based on limits as set forth in the respective agreements entered between the Company and the financial institutions.

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The Company is subject to credit risk associated with the counterparties to the derivative contracts. This counterparty credit risk is a multidimensional form of risk, affected by both the exposure and credit quality of the counterparty, both of which are sensitive to market-induced changes. The Company’s Credit Risk Management Committee provides oversight of credit risks and the Company has guidelines in place to manage counterparty concentration, tenor limits and collateral. The Company manages the credit risk of its derivative positions by diversifying its positions among various counterparties, entering into legally enforceable master netting arrangements and requiring collateral arrangements, where possible. The Company may also transfer counterparty credit risk related to interest rate swaps to institutional third parties through the use of credit risk participation agreements (“RPAs”). Certain derivative contracts are required to be centrally cleared through clearinghouses to further mitigate counterparty credit risk. The Company incorporates credit value adjustments and other market standard methodologies to appropriately reflect its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives.

Fair Value Hedges — As of December 31, 2019, the Company had two cancellable interest rate swap contracts with original terms of 20 years. These swap contracts involve the exchange of variable rate payments over the life of the agreements without the exchange of the underlying notional amounts. The changes in fair value of the hedged brokered certificates of deposit are expected to be effectively offset by the changes in fair value of the swaps throughout the terms of these contracts.

Net Investment Hedges — ASC 830-20, Foreign Currency Matters — Foreign Currency Transactions and ASC 815, Derivatives and Hedging, allow hedging of the foreign currency risk of a net investment in a foreign operation. The Company entered into foreign currency forward contracts to hedge its investment in East West Bank (China) Limited, a non-USD functional currency subsidiary in China. The hedging instruments designated as net investment hedges, involve hedging the risk of changes in the USD equivalent value of a designated monetary amount of the Company’s net investment in East West Bank (China) Limited, against the risk of adverse changes in the foreign currency exchange rate of the RMB. As of December 31, 2019, the outstanding foreign currency forwards effectively hedged approximately 50% of the RMB exposure in East West Bank (China) Limited. The fluctuation in foreign currency translation of the hedged exposure is expected to be offset by changes in the fair value of the forwards.

Interest Rate Contracts — The Company offers various interest rate derivative contracts to its customers. When derivative transactions are executed with its customers, the derivative contracts are offset by paired trades with third-party financial institutions including with central clearing organizations. Certain derivative contracts entered with central clearing organizations are settled-to-market daily to the extent the central clearing organizations’ rulebooks legally characterize the variation margin as settlement. Derivative contracts allow borrowers to lock in attractive intermediate and long-term fixed rate financing while not increasing the interest rate risk to the Company. These transactions are not linked to specific Company assets or liabilities on the Consolidated Balance Sheet or to forecasted transactions in a hedging relationship and, therefore, are economic hedges. The contracts are marked to market at each reporting period. The changes in fair values of the derivative contracts traded with third-party financial institutions are expected to be largely comparable to the changes in fair values of the derivative transactions executed with customers throughout the terms of these contracts, except for the credit valuation adjustment component. The Company records credit valuation adjustments on derivatives to properly reflect the variances of credit worthiness between the Company and the counterparties, considering the effects of enforceable master netting agreements and collateral arrangements.

Foreign Exchange Contracts — The Company enters into foreign exchange contracts with its customers, consisting of forward, spot, swap and option contracts to accommodate the business needs of its customers. For a portion of the foreign exchange contracts entered into with its customers, the Company either enters into offsetting foreign exchange contracts with third-party financial institutions or acquires collateral primarily in the form of cash on a portfolio basis to manage its exposure. The changes in the fair values entered with third-party financial institutions are expected to be largely comparable to the changes in fair values of the foreign exchange transactions executed with the customers throughout the terms of these contracts. The Company also utilizes foreign exchange contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in certain foreign currency on-balance sheet assets and liabilities, primarily foreign currency denominated deposits offered to its customers. The Company’s policies permit taking proprietary currency positions within approved limits, in compliance with the proprietary trading exemption provided under Section 619 of the Dodd-Frank Act. The Company does not speculate in the foreign exchange markets, and actively manages its foreign exchange exposures within prescribed risk limits and defined controls.

Credit Contracts — The Company may periodically enter into RPAs to manage the credit exposure on interest rate contracts associated with its syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. Under the RPA, the Company will receive or make a payment if a borrower defaults on the related interest rate contract. The Company manages its credit risk on the RPAs by monitoring the credit worthiness of the borrowers, which is based on the Company’s normal credit review process.

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Equity Contracts — As part of the loan origination process, from time to time, the Company obtained equity warrants to purchase preferred and/or common stock of technology and life sciences companies it provides loans to. The warrants included in the Consolidated Financial Statements were from public and private companies.

Commodity Contracts — The Company entered into energy commodity contracts with its customers to allow them to hedge against the risk of fluctuation in energy commodity prices. To economically hedge against the risk of fluctuation in commodity prices in the products offered to its customers, the Company enters into offsetting commodity contracts with third-party financial institutions including with central clearing organizations. Certain derivative contracts entered with central clearing organizations are settled to market daily to the extent the central clearing organizations’ rulebooks legally characterize the variation margin as settlement. The changes in fair values of the energy commodity contracts traded with third-party financial institutions are expected to be largely comparable to the changes in fair values of the energy commodity transactions executed with customers throughout the terms of these contracts.

Additional information on the Company’s derivatives is presented in Note 1 — Summary of Significant Accounting Policies, Note 3 — Fair Value Measurement and Fair Value of Financial Instruments and Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K.

Impact of Inflation

The consolidated financial statements and related financial data presented in this report have been prepared according to GAAP, which require the measurement of financial and operating results in terms of historical dollars without considering the change in the relative purchasing power of money over time due to inflation. The primary impact of inflation on our operations is reflected in increased operating costs and the effect that general inflation may have on both short-term and long-term interest rates. Since almost all the assets and liabilities of a financial institution are monetary in nature, interest rates generally have a more significant impact on a financial institution's performance than do general levels of inflation. Although inflation expectations do affect interest rates, interest rates do not necessarily move in the same direction or to the same extent as the prices of goods and services.

Critical Accounting Policies and Estimates

Significant accounting policies, which are described in Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements, are fundamental to understanding the Company’s results of operations and financial condition. Some accounting policies, by their nature, are inherently subject to estimation techniques, valuation assumptions and other subjective assessments. In addition, some accounting policies require significant judgment in applying complex accounting principles to individual transactions to determine the most appropriate treatment. The Company has procedures and processes in place to facilitate making these judgments.

Certain accounting policies are considered to have a critical effect on the Company’s Consolidated Financial Statements in the Company’s judgment. Critical accounting policies are defined as those that require the most complex or subjective judgments and are reflective of significant uncertainties, and whose actual results could differ from the Company’s estimates. Future changes in the key variables could change future valuations and impact the results of operations. The following is a discussion of the critical accounting policies including significant estimates. In each area, the Company has identified the most important variables in the estimation process. The Company has used the best information available to make the estimations necessary for the related assets and liabilities.

Fair Value of Financial Instruments

In determining the fair value of financial instruments, the Company uses market prices of the same or similar instruments whenever such prices are available. The Company does not use prices involving distressed sellers in determining fair value. Changes in the market conditions such as reduced liquidity in the capital markets or changes in secondary market activities, may increase variability or reduce the availability of market price used to determine fair value. If observable market prices are unavailable or impracticable to obtain, then fair value is estimated using modeling techniques such as discounted cash flows analysis. These modeling techniques incorporate management’s assessments regarding assumptions that market participants would use in pricing the asset or the liability, including assumptions about the risks inherent in a particular valuation technique and the risk of nonperformance. The use of methodologies or assumptions different than those used by the Company could result in different estimates of fair value of financial instruments.

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Significant judgment is also required to determine the fair value hierarchy for certain financial instruments. When fair values are based on valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement, the financial assets and liabilities are classified as Level 3 under the fair value hierarchy. Total recurring Level 3 assets were $421 thousand and $673 thousand as of December 31, 2019 and 2018, respectively, and there were no recurring Level 3 liabilities as of December 31, 2019 and 2018. For a complete discussion on the Company’s fair value hierarchy of financial instruments, fair value measurement techniques and assumptions, and the impact on the Consolidated Financial Statements, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

Allowance for Credit Losses

The allowance for credit losses consists of the allowance for loan losses and the allowance for unfunded credit commitments. Allowance for credit losses is calculated with the objective of maintaining a reserve sufficient to absorb losses inherent in our credit portfolio. Management’s determination of the appropriateness of the allowance is based on periodic evaluation of the loan portfolio, lending-related commitments and other relevant factors. This evaluation is inherently subjective as it requires numerous estimates as further discussed below. The allowance for loan losses consists of general and specific reserves. Non-impaired loans are evaluated as part of the general reserve while impaired loans are subject to a specific reserve. In determining the allowance for credit losses, the Company individually evaluates impaired loans, applies loss rates to non-impaired loans and unfunded lending commitments, SBLCs and recourse obligations for loans sold. General reserves are calculated by utilizing both qualitative and quantitative factors.

The Company’s methodology to determine the overall appropriateness of the allowance for credit losses is based on a classified asset migration model (the “Model”) with quantitative factors and qualitative considerations. The Model examines pools of loans having similar characteristics and analyzes their loss rates over a historical period. The Company assigns loss rates to each loan grade within each pool of loans. Loss rates derived by the migration model are based predominantly on historical loss trends that may not be entirely indicative of the actual or inherent loss potential within its current loan portfolio. Additionally, the Company utilizes qualitative and environmental factors as adjusting mechanisms to supplement the historical results of the Model. Qualitative and environmental factors are reflected as percentage adjustments and are added to the historical loss rates derived from the Model to determine the appropriate allowance for each loan pool. The evaluation is inherently subjective, as it requires numerous estimates and judgments that are susceptible to revision as more information becomes available. To the extent actual results differ from estimates or management’s judgment, the allowance for credit losses may be greater or less than future charge-offs.

Quantitative factors include the Company’s historical loss experience, delinquency and net charge-off trends, collateral values, changes in nonperforming loans, probability of commitment usage, and other factors. Qualitative considerations include, but are not limited to, prevailing economic or market conditions, relative risk profiles of various loan segments, volume concentrations, growth trends, delinquency and nonaccrual status, problem loan trends, geographic concentrations, credit risk factors for loans outstanding and the terms and expiration dates of the unfunded credit facilities.

The specific reserve is measured by the difference between the recorded value of impaired loans and their impaired value. Impaired loans are measured based on the present value of expected future cash flows discounted at a designated discount rate or, as appropriate, at the loan’s observable market price or the fair value of the collateral, if the loan is collateral dependent, less cost to sell.

On January 1, 2020, the Company adopted ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires the measurement of the allowance for credit losses to be based on management’s best estimate of lifetime expected credit losses inherent in the Company’s relevant financial assets. The Company’s lifetime expected credit losses are determined using macroeconomic forecast assumptions and management judgments applicable to and through the expected life of the loan portfolios, and are net of expected recoveries on loans that were previously charged off. Management believes the newly adopted methodologies are appropriate given the Company’s size and level of complexity. As the Company adds new products, increases the complexity of the loan portfolio and expands the geographic coverage, the Company expects to continue to enhance its methodologies to keep pace with the changing credit environment and the size and complexity of the loan portfolio and unfunded credit commitments. Changes in any of the factors cited above could have a significant impact on the allowance for credit loss calculation. For additional information on allowance for credit losses, see Note 1 - Summary of Significant Accounting Policies and Note 7 — Loans Receivable and Allowance for Credit Losses to the Consolidated Financial Statements in this Form 10-K.

74

Goodwill Impairment

Under ASC 350, Intangibles — Goodwill and Other, goodwill is required to be allocated to reporting units and tested for impairment at least annually. The Company tests goodwill for impairment annually or more frequently if events or circumstances, such as adverse changes in the business, indicate that there may be justification for conducting an interim test. Impairment testing is performed at the reporting unit level (which is the same level as the Company’s major operating segments identified in Note 21 — Business Segments to the Consolidated Financial Statements in this Form 10-K). The Company conducts a two-step goodwill impairment test. The first step is to identify potential impairment by determining the fair value of each reporting unit and comparing such fair value to its corresponding carrying value. In order to determine the fair value of the reporting units, a combined income approach and market approach is used (additional information on process and methodology used to conduct goodwill impairment testing is described in Note 9 — Goodwill and Other Intangible Assets to the Consolidated Financial Statements in this Form 10-K). If the fair value is less than the carrying value, then the second step of the test is needed to measure the amount of goodwill impairment, if any, by comparing the implied fair value of the reporting unit goodwill with the carrying value of that goodwill. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the carrying value of reporting unit goodwill exceeds the implied fair value of that goodwill, then the Company would recognize an impairment loss in an amount equal to that excess, which would be recorded as a charge to noninterest expense. The loss recognized cannot exceed the carrying amount of goodwill.

Significant judgment is applied and assumptions are made when estimating the fair value of the reporting units. Estimates of fair value are dependent upon various factors including estimates of the profitability of the Company’s reporting units, long term growth rates and the estimated market cost of equity. Imprecision in estimating these factors can affect the estimated fair value of the reporting units. Certain events or circumstances could have a negative effect on the estimated fair value of the reporting units, including declines in business performance, increases in credit losses, as well as deterioration in economic or market conditions and adverse regulatory or legislative changes, which could result in a material impairment charge to earnings in a future period.

In the fourth quarter of 2019, the Company performed its annual goodwill impairment test on all reporting units, and no goodwill impairment was recognized as a result of the test. For additional information on goodwill, see Note 9 — Goodwill and Other Intangible Assets to the Consolidated Financial Statements in this Form 10-K.

Income Taxes

The Company is subject to income tax laws of the various tax jurisdictions in which it conducts business, including the U.S., its states and the municipalities, and the tax jurisdictions in Hong Kong and China. The Company estimates income tax expense based on amounts expected to be owed to these various tax jurisdictions. The estimated income tax expense or benefit is reported on the Consolidated Statement of Income.

Accrued taxes represent the net estimated amount due to or to be received from various tax jurisdictions and are reported in Accrued expenses and other liabilities or Other assets on the Consolidated Balance Sheets. In estimating accrued taxes, the Company assesses the appropriate tax treatment of transactions and filing positions after considering statutes, regulations, judicial precedent, and other pertinent information. The income tax laws are complex and subject to different interpretations by the Company and the relevant government taxing authorities. Significant judgment is required in determining the tax accruals and in evaluating the tax positions, including evaluating uncertain tax positions. Changes in the estimate of accrued taxes occur periodically due to changes in tax rates, interpretations of tax laws, the status of examinations by the tax authorities, and newly enacted statutory, judicial, and regulatory guidance that could impact the relative merits and risks of tax positions. These changes, when they occur, impact tax expense and can materially affect the operating results. The Company reviews its tax positions on a quarterly basis and makes adjustments to accrued taxes as new information becomes available.

Deferred tax assets represent amounts available to reduce income taxes payable in future years. Such assets arise due to temporary differences between the financial accounting basis and the income tax basis of assets and liabilities, as well as from NOL and tax credit carryforwards. The Company regularly evaluates the realizability of deferred tax assets. The available evidence used in connection with the evaluations includes taxable income, potential tax-planning strategies, and projected future reversals of deferred tax items.

75

A valuation allowance is established for deferred tax assets if, based on the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized. It reduces the deferred tax assets to the amount that is more-likely-than-not to be realized. The Company has concluded that it is more-likely-than-not that all of the benefit of the deferred tax assets will be realized, with the exception of the deferred tax assets related to certain state NOLs. Accordingly, a valuation allowance has been recorded for these amounts.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. Uncertain tax positions that meet the more-likely-than-not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. The Company establishes a liability for potential taxes, interest and penalties related to uncertain tax positions based on facts and circumstances, including the interpretation of existing law, new judicial or regulatory guidance, and the status of tax audits. The Company believes that adequate provisions have been recorded for all income tax uncertainties consistent with ASC 740, Income Taxes as of December 31, 2019. See Note 14 — Income Taxes to the Consolidated Financial Statements in this Form 10-K for additional information on income taxes.

Recently Issued Accounting Standards

For detailed discussion and disclosure on new accounting pronouncements adopted and recent accounting standards, see Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Form 10-K.

Supplemental Information — Explanation of GAAP and Non-GAAP Financial Measures

To supplement the Company’s Consolidated Financial Statements presented in accordance with GAAP, the Company uses certain non-GAAP measures of financial performance. Non-GAAP financial measures are not in accordance with, or an alternative to GAAP. Generally, a non-GAAP financial measure is a numerical measure of a company’s performance that either excludes or includes amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with GAAP. A non-GAAP financial measure may also be a financial metric that is not required by GAAP or other applicable requirement. The Company believes these non-GAAP financial measures, when taken together with the corresponding GAAP financial measures, provide meaningful supplemental information regarding its performance, and allow comparability to prior periods. These non-GAAP financial measures may be different from non-GAAP financial measures used by other companies, limiting their usefulness for comparison purposes.

During 2019, the Company recorded a $7.0 million pre-tax impairment charge, reversed $30.1 million of certain previously claimed tax credits and subsequently recorded a $1.6 million pre-tax impairment recovery related to DC Solar. During 2018, the Company sold its eight DCB branches and recognized a pre-tax gain on sale of $31.5 million. During 2017, the Company consummated a sale and leaseback transaction on a commercial property and recognized a pre-tax gain on sale of $71.7 million, sold its EWIS insurance brokerage business and recognized a pre-tax gain on sale of $3.8 million, and recorded additional income tax expense of $41.7 million related to the passing of the Tax Act.

76

The following tables present the reconciliation of GAAP to non-GAAP financial measures in 2019, 2018 and 2017:

($ and shares in thousands, except per share data)		Year Ended December 31,
		2019			2018			2017
Net income	(a)	$	674,035		$	703,701		$	505,624
Add: Impairment charge related to DC Solar (1)		6,978			—			—
Less: Gain on sale of the commercial property		—			—			(71,654		)
Gain on sale of business		—			(31,470		)	(3,807		)
Impairment recovery related to DC Solar (1)		(1,583		)	—			—
Tax effect of adjustments (2)		(1,595		)	9,303			31,729
Add: Reversal of certain previously claimed tax credits related to DC Solar		30,104			—			—
Impact of the Tax Act		—			—			41,689
Non-GAAP net income	(b)	$	707,939		$	681,534		$	503,581
Diluted weighted-average number of shares outstanding		146,179			146,169			145,913
Diluted EPS		$	4.61		$	4.81		$	3.47
Diluted EPS impact of impairment charge related to DC Solar, net of tax		0.03			—			—
Diluted EPS impact of gain on sale of the commercial property, net of tax		—			—			(0.28		)
Diluted EPS impact of gain on sale of business, net of tax		—			(0.15		)	(0.02		)
Diluted EPS impact of impairment recovery related to DC Solar, net of tax		(0.01		)	—			—
Diluted EPS impact of reversal of certain previously claimed tax credits related to DC Solar		0.21			—			—
Diluted EPS impact of the Tax Act		—			—			0.29
Non-GAAP diluted EPS		$	4.84		$	4.66		$	3.46
Average total assets	(c)	$	42,484,885		$	38,542,569		$	35,787,613
Average stockholders’ equity	(d)	$	4,760,845		$	4,130,822		$	3,687,213
ROA	(a)/(c)	1.59		%	1.83		%	1.41		%
Non-GAAP ROA	(b)/(c)	1.67		%	1.77		%	1.41		%
ROE	(a)/(d)	14.16		%	17.04		%	13.71		%
Non-GAAP ROE	(b)/(d)	14.87		%	16.50		%	13.66		%

(1) Included in Amortization of tax credit and other investments on the Consolidated Statement of Income.

(2) Applied statutory rate of 29.56%.

($ in thousands)		Year Ended December 31,
		2019			2018			2017
Income tax expense	(a)	$	169,882		$	114,995		$	229,476
Less: Reversal of certain previously claimed tax credits related to DC Solar	(b)	(30,104		)	—			—
Impact of the Tax Act	(c)	—			—			(41,689		)
Non-GAAP income tax expense	(d)	$	139,778		$	114,995		$	187,787
Income before income taxes	(e)	$	843,917		$	818,696		$	735,100
Effective tax rate	(a)/(e)	20.1		%	14.0		%	31.2		%
Less: Reversal of certain previously claimed tax credits related to DC Solar	(b)/(e)	(3.5		)%	—		%	—		%
Impact of the Tax Act	(c)/(e)	—		%	—		%	(5.7		)%
Non-GAAP effective tax rate	(d)/(e)	16.6		%	14.0		%	25.5		%

77

($ in thousands)		Year Ended December 31,
		2019			2018			2017
Net interest income before provision for credit losses	(a)	$	1,467,813		$	1,386,508		$	1,185,069
Total noninterest income		209,377			210,909			257,748
Total revenue	(b)	$	1,677,190		$	1,597,417		$	1,442,817
Total noninterest income		$	209,377		$	210,909		$	257,748
Less: Gain on sale of the commercial property		—			—			(71,654		)
Gain on sale of business		—			(31,470		)	(3,807		)
Non-GAAP noninterest income	(c)	$	209,377		$	179,439		$	182,287
Non-GAAP revenue	(a)+(c)=(d)	$	1,677,190		$	1,565,947		$	1,367,356
Total noninterest expense	(e)	$	734,588		$	714,466		$	661,451
Less: Amortization of tax credit and other investments		(85,515		)	(89,628		)	(87,950		)
Amortization of core deposit intangibles		(4,518		)	(5,492		)	(6,935		)
Non-GAAP noninterest expense	(f)	$	644,555		$	619,346		$	566,566
Efficiency ratio	(e)/(b)	43.80		%	44.73		%	45.84		%
Non-GAAP efficiency ratio	(f)/(d)	38.43		%	39.55		%	41.44		%

($ and shares in thousands, except per share data)		December 31,
		2019			2018			2017
Stockholders’ equity	(a)	$	5,017,617		$	4,423,974		$	3,841,951
Less: Goodwill		(465,697		)	(465,547		)	(469,433		)
Other intangible assets (1)		(16,079		)	(22,365		)	(28,825		)
Non-GAAP tangible common equity	(b)	$	4,535,841		$	3,936,062		$	3,343,693
Number of common shares, at period-end	(c)	145,625			144,961			144,543
Non-GAAP tangible common equity per share	(b)/(c)	$	31.15		$	27.15		$	23.13

(1) Includes core deposit intangibles and mortgage servicing assets.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

For quantitative and qualitative disclosures regarding market risk in the Company’s portfolio, see Item 7. MD&A — Risk Management — Market Risk Management and Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K.

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EAST WEST BANCORP, INC.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

TABLE OF CONTENTS

		Page
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM		80
CONSOLIDATED FINANCIAL STATEMENTS
	Consolidated Balance Sheet	82
	Consolidated Statement of Income	83
	Consolidated Statement of Comprehensive Income	84
	Consolidated Statement of Changes in Stockholders’ Equity	85
	Consolidated Statement of Cash Flows	86
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
	1 — Summary of Significant Accounting Policies	88
	2 — Dispositions	97
	3 — Fair Value Measurement and Fair Value of Financial Instruments	97
	4 — Securities Purchased under Resale Agreements and Sold under Repurchase Agreements	106
	5 — Securities	108
	6 — Derivatives	111
	7 — Loans Receivable and Allowance for Credit Losses	117
	8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities	132
	9 — Goodwill and Other Intangible Assets	134
	10 — Leases	136
	11 — Deposits	139
	12 — Federal Home Loan Bank Advances and Long-Term Debt	139
	13 — Revenue from Contracts with Customers	141
	14 — Income Taxes	143
	15 — Commitments, Contingencies and Related Party Transactions	146
	16 — Stock Compensation Plans	148
	17 — Employee Benefit Plans	149
	18 — Stockholders’ Equity and Earnings Per Share	150
	19 — Accumulated Other Comprehensive Income (Loss)	151
	20 — Regulatory Requirements and Matters	152
	21 — Business Segments	153
	22 — Parent Company Condensed Financial Statements	155
	23 — Quarterly Financial Information (Unaudited)	158
	24 — Subsequent Events	158

79

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and Board of Directors

East West Bancorp, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheet of East West Bancorp, Inc. and subsidiaries (the Company) as of December 31, 2019 and 2018, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three‑year period ended December 31, 2019, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2019 and 2018, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2019, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 27, 2020 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgment. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Assessment of the allowance for loan losses related to non-impaired loans collectively evaluated for impairment.

As discussed in Notes 1 and 7 to the consolidated financial statements, the Company’s allowance for loan losses related to non-impaired loans collectively evaluated for impairment (general reserve) was $353 million of a total allowance for loan losses of $358 million as of December 31, 2019. The methodology to determine the general reserve is based on a classified asset migration model (the model) that uses both quantitative factors and qualitative considerations. The model examines pools of loans having similar characteristics, including loan grades for heterogeneous loans, and estimates their probable losses. Quantitative factors include historical loss experience, delinquency and net charge-off trends, and other factors. Additionally, the methodology utilizes qualitative and environmental factors as adjusting mechanisms to supplement the historical results of the model.

We identified the assessment of the general reserve as a critical audit matter as it involved significant measurement uncertainty, required complex auditor judgment, and industry knowledge and experience. Specifically, the assessment involved an evaluation of the methodology and model, and the key inputs and assumptions, which included (1) how loans with similar characteristics are pooled, (2) loan grades for heterogeneous loans, (3) loss rates based on historical loss experience, and (4) qualitative and environmental factors.

80

The primary procedures we performed to address the critical audit matter included the following. We tested the design, implementation, and operating effectiveness of internal controls over the development and approval of the general reserve methodology, including the determination of the key inputs and assumptions. We tested the process for estimating the general reserve, including the key inputs and assumptions. We involved credit risk professionals with specialized industry knowledge and experience, who assisted in the evaluation of (1) the general reserve methodology for compliance with U.S. generally accepted accounting principles, (2) how loans with similar characteristics are pooled, (3) loan grades for a selection of heterogeneous loans, (4) the development of the loss rates, which are based on the historical loss experience, and (5) the framework used to develop the resulting qualitative factors.

/s/ KPMG LLP

We have served as the Company’s auditor since 2009.

Los Angeles, California

February 27, 2020

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET

($ in thousands, except shares)

	December 31,
	2019			2018
ASSETS
Cash and due from banks	$	536,221		$	516,291
Interest-bearing cash with banks	2,724,928			2,485,086
Cash and cash equivalents	3,261,149			3,001,377
Interest-bearing deposits with banks	196,161			371,000
Securities purchased under resale agreements (“resale agreements”)	860,000			1,035,000
Securities:
Available-for-sale (''AFS'') investment securities, at fair value (includes assets pledged as collateral of $479,432 in 2019 and $435,833 in 2018)	3,317,214			2,741,847
Restricted equity securities, at cost	78,580			74,069
Loans held-for-sale	434			275
Loans held-for-investment (net of allowance for loan losses of $358,287 in 2019 and $311,322 in 2018; includes assets pledged as collateral of $22,431,092 in 2019 and $20,590,035 in 2018)	34,420,252			32,073,867
Investments in qualified affordable housing partnerships, net	207,037			184,873
Investments in tax credit and other investments, net	254,140			231,635
Premises and equipment (net of accumulated depreciation of $116,790 in 2019 and $118,547 in 2018)	118,364			119,180
Goodwill	465,697			465,547
Operating lease right-of-use assets	99,973			—
Other assets	917,095			743,686
TOTAL	$	44,196,096		$	41,042,356
LIABILITIES
Deposits:
Noninterest-bearing	$	11,080,036		$	11,377,009
Interest-bearing	26,244,223			24,062,619
Total deposits	37,324,259			35,439,628
Short-term borrowings	28,669			57,638
Federal Home Loan Bank (“FHLB”) advances	745,915			326,172
Securities sold under repurchase agreements (“repurchase agreements”)	200,000			50,000
Long-term debt and finance lease liabilities	152,270			146,835
Operating lease liabilities	108,083			—
Accrued expenses and other liabilities	619,283			598,109
Total liabilities	39,178,479			36,618,382
COMMITMENTS AND CONTINGENCIES (Note 15)
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167			166
Additional paid-in capital	1,826,345			1,789,811
Retained earnings	3,689,377			3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864		)	(467,961		)
Accumulated other comprehensive loss (“AOCI”), net of tax	(18,408		)	(58,174		)
Total stockholders’ equity	5,017,617			4,423,974
TOTAL	$	44,196,096		$	41,042,356

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF INCOME

($ and shares in thousands, except per share data)

	Year Ended December 31,
	2019		2018		2017
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$	1,717,415	$	1,503,514	$	1,198,440
Investment securities	67,838		60,911		58,670
Resale agreements	27,819		29,328		32,095
Restricted equity securities	2,468		3,146		2,524
Interest-bearing cash and deposits with banks	66,760		54,804		33,390
Total interest and dividend income	1,882,300		1,651,703		1,325,119
INTEREST EXPENSE
Deposits	375,802		234,752		116,391
Federal funds purchased and other short-term borrowings	1,763		1,398		1,003
FHLB advances	16,697		10,447		7,751
Repurchase agreements	13,582		12,110		9,476
Long-term debt and finance lease liabilities	6,643		6,488		5,429
Total interest expense	414,487		265,195		140,050
Net interest income before provision for credit losses	1,467,813		1,386,508		1,185,069
Provision for credit losses	98,685		64,255		46,266
Net interest income after provision for credit losses	1,369,128		1,322,253		1,138,803
NONINTEREST INCOME
Lending fees	63,670		59,758		58,395
Deposit account fees	38,648		39,176		40,299
Foreign exchange income	26,398		21,259		9,908
Wealth management fees	16,668		13,785		13,974
Interest rate contracts and other derivative income	39,865		18,980		17,671
Net gains on sales of loans	4,035		6,590		8,870
Net gains on sales of AFS investment securities	3,930		2,535		8,037
Net gains on sales of fixed assets	114		6,683		77,388
Net gain on sale of business	—		31,470		3,807
Other investment income	5,249		1,207		3,903
Other income	10,800		9,466		15,496
Total noninterest income	209,377		210,909		257,748
NONINTEREST EXPENSE
Compensation and employee benefits	401,700		379,622		335,291
Occupancy and equipment expense	69,730		68,896		64,921
Deposit insurance premiums and regulatory assessments	12,928		21,211		23,735
Legal expense	8,441		8,781		11,444
Data processing	13,533		13,177		12,093
Consulting expense	9,846		11,579		14,922
Deposit related expense	14,175		11,244		9,938
Computer software expense	26,471		22,286		18,183
Other operating expense	92,249		88,042		82,974
Amortization of tax credit and other investments	85,515		89,628		87,950
Total noninterest expense	734,588		714,466		661,451
INCOME BEFORE INCOME TAXES	843,917		818,696		735,100
INCOME TAX EXPENSE	169,882		114,995		229,476
NET INCOME	$	674,035	$	703,701	$	505,624
EARNINGS PER SHARE (“EPS”)
BASIC	$	4.63	$	4.86	$	3.50
DILUTED	$	4.61	$	4.81	$	3.47
WEIGHTED-AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC	145,497		144,862		144,444
DILUTED	146,179		146,169		145,913

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

($ in thousands)

	Year Ended December 31,
	2019			2018			2017
Net income	$	674,035		$	703,701		$	505,624
Other comprehensive income (loss), net of tax:
Net changes in unrealized gains (losses) on AFS investment securities	43,402			(8,652		)	(2,126		)
Foreign currency translation adjustments	(3,636		)	(5,732		)	12,753
Other comprehensive income (loss)	39,766			(14,384		)	10,627
COMPREHENSIVE INCOME	$	713,801		$	689,317		$	516,251

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY

($ in thousands, except shares)

	Common Stock and Additional Paid-in Capital			Retained Earnings			Treasury Stock			AOCI, Net of Tax			Total Stockholders’ Equity
	Shares	Amount
BALANCE, DECEMBER 31, 2016	144,167,451	$	1,727,598	$	2,187,676		$	(439,387	)	$	(48,146	)	$	3,427,741
Net income	—	—		505,624			—			—			505,624
Other comprehensive income	—	—		—			—			10,627			10,627
Net activity of common stock pursuant to various stock compensation plans and agreements	375,609	27,897		—			(12,940		)	—			14,957
Cash dividends on common stock ($0.80 per share)	—	—		(116,998		)	—			—			(116,998		)
BALANCE, DECEMBER 31, 2017	144,543,060	$	1,755,495	$	2,576,302		$	(452,327	)	$	(37,519	)	$	3,841,951
Cumulative effect of change in accounting principle related to marketable equity securities (1)	—	—		(545		)	—			385			(160		)
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate (2)	—	—		6,656			—			(6,656		)	—
Net income	—	—		703,701			—			—			703,701
Other comprehensive loss	—	—		—			—			(14,384		)	(14,384		)
Net activity of common stock pursuant to various stock compensation plans and agreements	418,303	34,482		—			(15,634		)	—			18,848
Cash dividends on common stock ($0.86 per share)	—	—		(125,982		)	—			—			(125,982		)
BALANCE, DECEMBER 31, 2018	144,961,363	$	1,789,977	$	3,160,132		$	(467,961	)	$	(58,174	)	$	4,423,974
Cumulative effect of change in accounting principle related to leases (3)	—	—		10,510			—			—			10,510
Net income	—	—		674,035			—			—			674,035
Other comprehensive income	—	—		—			—			39,766			39,766
Warrants exercised	180,226	1,711		—			2,732			—			4,443
Net activity of common stock pursuant to various stock compensation plans and agreements	483,796	34,824		—			(14,635		)	—			20,189
Cash dividends on common stock ($1.055 per share)	—	—		(155,300		)	—			—			(155,300		)
BALANCE, DECEMBER 31, 2019	145,625,385	$	1,826,512	$	3,689,377		$	(479,864	)	$	(18,408	)	$	5,017,617

(1) Represents the impact of the adoption of Accounting Standards Update (“ASU”) 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) for additional information.

(2) Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements for additional information.

(3) Represents the impact of the adoption of ASU 2016-02, Leases (Topic 842) and subsequent related ASUs in the first quarter of 2019. Refer to Note 1 — Summary of Significant Accounting Policies and Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K for additional information.

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS

	Year Ended December 31,
($ in thousands)	2019			2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	674,035		$	703,701		$	505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	144,178			139,499			149,822
Accretion of discount and amortization of premiums, net	(22,379		)	(20,572		)	(7,260		)
Stock compensation costs	30,761			30,937			24,657
Deferred income tax (benefit) expense	(21,604		)	(16,470		)	33,856
Provision for credit losses	98,685			64,255			46,266
Net gains on sales of loans	(4,035		)	(6,590		)	(8,870		)
Net gains on sales of AFS investment securities	(3,930		)	(2,535		)	(8,037		)
Net gains on sales of fixed assets	(114		)	(6,683		)	(77,388		)
Net gain on sale of business	—			(31,470		)	(3,807		)
Loans held-for-sale:
Originations and purchases	(10,569		)	(20,176		)	(20,521		)
Proceeds from sales and paydowns/payoffs of loans originally classified as held-for-sale	10,436			20,068			21,363
Proceeds from distributions received from equity method investees	3,470			3,761			3,582
Net change in accrued interest receivable and other assets	(170,819		)	(60,791		)	45,354
Net change in accrued expenses and other liabilities	7,012			88,070			(1,965		)
Other net operating activities	702			(1,832		)	599
Total adjustments	61,794			179,471			197,651
Net cash provided by operating activities	735,829			883,172			703,275
CASH FLOWS FROM INVESTING ACTIVITIES
Net (increase) decrease in:
Investments in qualified affordable housing partnerships, tax credit and other investments	(146,902		)	(132,605		)	(173,630		)
Interest-bearing deposits with banks	193,455			4,212			(63,096		)
Resale agreements:
Proceeds from paydowns and maturities	650,000			175,000			1,250,000
Purchases	(325,000		)	(160,000		)	(600,000		)
AFS investment securities:
Proceeds from sales	627,110			364,270			832,844
Proceeds from repayments, maturities and redemptions	1,155,002			742,132			413,593
Purchases	(2,303,317		)	(888,673		)	(828,604		)
Loans held-for-investment:
Proceeds from sales of loans originally classified as held-for-investment	288,823			483,948			566,688
Purchases	(524,142		)	(597,112		)	(534,816		)
Other changes in loans held-for-investment, net	(2,184,915		)	(3,313,382		)	(3,514,786		)
Premises and equipment:
Proceeds from sales	403			1,638			119,749
Purchases	(9,859		)	(13,787		)	(13,754		)
Sales of businesses, net of cash transferred:
Proceeds	—			—			3,633
Payments	—			(503,687		)	—
Proceeds from sales of other real estate owned (“OREO”)	1,224			4,484			6,999
Proceeds from distributions received from equity method investees	9,502			5,185			8,387
Other net investing activities	(2,560		)	(4,035		)	19,969
Net cash used in investing activities	(2,571,176		)	(3,832,412		)	(2,506,824		)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	1,902,741			3,903,192			2,272,500
Net (decrease) increase in short-term borrowings	(28,535		)	61,392			(61,560		)
FHLB advances
Proceeds	1,500,000			—			—
Repayment	(1,082,001		)	—			—
Repayment of long-term debt and lease liabilities	(884		)	(25,000		)	(15,000		)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,383			2,846			2,280
Stocks tendered for payment of withholding taxes	(14,635		)	(15,634		)	(12,940		)
Cash dividends paid	(155,107		)	(125,988		)	(116,820		)
Net cash provided by financing activities	2,124,962			3,800,808			2,068,460
Effect of exchange rate changes on cash and cash equivalents	(29,843		)	(24,783		)	31,178
NET INCREASE IN CASH AND CASH EQUIVALENTS	259,772			826,785			296,089
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	3,001,377			2,174,592			1,878,503
CASH AND CASH EQUIVALENTS, END OF YEAR	$	3,261,149		$	3,001,377		$	2,174,592

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS

(Continued)

	Year Ended December 31,
($ in thosands)	2019		2018		2017
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid during the year for:
Interest	$	418,840	$	253,026	$	138,766
Income taxes, net	$	158,296	$	85,872	$	98,126
Noncash investing and financing activities:
Loans transferred from held-for-investment to held-for-sale (1)	$	285,637	$	481,593	$	613,088
Loans transferred from held-for-sale to held-for-investment	$	—	$	2,306	$	—
Deposits transferred to branch liability held-for-sale	$	—	$	—	$	605,111
Investment security transferred from held-to-maturity to AFS	$	—	$	—	$	115,615
Premises and equipment transferred to branch assets held-for-sale	$	—	$	—	$	8,043
Loans transferred to OREO	$	2,013	$	1,206	$	777

(1) December 31, 2017 amount includes loans transferred from held-for-investment to branch assets held-for-sale.

See accompanying Notes to Consolidated Financial Statements.

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EAST WEST BANCORP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 — Summary of Significant Accounting Policies

General

East West Bancorp, Inc. (referred to herein on an unconsolidated basis as “East West” and on a consolidated basis as the “Company”) is a registered bank holding company that offers a full range of banking services to individuals and businesses through its subsidiary bank, East West Bank and its subsidiaries (“East West Bank” or the “Bank”). The Bank is the Company’s principal asset. As of December 31, 2019, the Company operates in more than 125 locations in the United States (“U.S.”) and Greater China. In the U.S., the Bank’s corporate headquarters and main administrative offices are located in California, and its branches are located in California, Texas, New York, Washington, Georgia, Massachusetts and Nevada. In Greater China, East West’s presence includes full service branches in Hong Kong, Shanghai, Shantou and Shenzhen, and representative offices in Beijing, Chongqing, Guangzhou and Xiamen. In 2017, the Company sold the insurance brokerage business of East West Insurance Services, Inc. (“EWIS”), which remains a subsidiary of East West and continues to maintain its insurance broker license. In 2019, East West acquired Enstream Capital Markets, LLC, a private broker dealer and also established East West Investment Management LLC, a registered investment adviser. Both Enstream Capital Markets, LLC (subsequently renamed as East West Markets, LLC) and East West Investment Management LLC are wholly-owned subsidiaries of East West.

Significant Accounting Policies

Basis of Presentation — The accounting and reporting policies of the Company conform with the U.S. Generally Accepted Accounting Principles (“GAAP”), applicable guidelines prescribed by regulatory authorities and general practices in the banking industry. The preparation of the Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the Consolidated Financial Statements, income and expenses during the reporting period, and the related disclosures. Actual results could differ materially from those estimates. Certain items on the Consolidated Financial Statements and notes for the prior years have been reclassified to conform to the 2019 presentation.

Principles of Consolidation — The Consolidated Financial Statements in this Form 10-K include the accounts of East West and its subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. East West also has six wholly-owned subsidiaries that are statutory business trusts (the “Trusts”). In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Trusts are not included on the Consolidated Financial Statements.

Cash and Cash Equivalents — Cash and cash equivalents include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRB”) and other financial institutions, and federal funds sold with original maturities up to three months.

Interest-bearing Deposits with Banks — Interest-bearing deposits with banks include cash placed with other banks with original maturities greater than three months and less than one year.

Resale Agreements and Repurchase Agreements — Resale agreements are recorded as receivables based on the values at which the securities are acquired. The market values of the underlying securities collateralizing the resale agreements, including accrued interest, are monitored. Additional collateral may be requested from the counterparties or excess collateral may be returned to the counterparties by the Company under the contractual terms of the arrangements, when deemed appropriate. Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. The Company may have to provide additional collateral to the counterparties, or the counterparties may return excess collateral to the Company, for the repurchase agreements when deemed appropriate. The Company has elected to offset resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and when the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements.

Securities — The Company’s securities include various debt securities, marketable equity securities and restricted equity securities. Debt securities are recorded on the Consolidated Balance Sheet as of their trade dates. The Company classifies its debt securities as trading securities, AFS or held-to-maturity investment securities based on management’s intention on the date of the purchase.

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Debt securities are purchased for liquidity and investment purpose, as part of asset-liability management and other strategic activities. Debt securities for which the Company does not have the positive intention and ability to hold to maturity are classified as AFS and reported at fair value with unrealized gains and losses net of applicable income taxes, included in AOCI. We recognize realized gains and losses on the sale of AFS debt securities using the specific identification method. For each reporting period, debt securities classified as either AFS or held-to-maturity investment securities that are in an unrealized loss position are analyzed as part of the Company’s ongoing other-than-temporary impairment (“OTTI”) assessment. The initial indicator of OTTI is a decline in fair value below the amortized cost of the debt security. In determining whether OTTI has occurred, the Company considers the severity and duration of the decline in fair value, the length of time expected for recovery, the financial condition of the issuer, changes in the debt securities’ ratings and other qualitative factors, as well as whether the Company either plans to sell the debt security or it is more-likely-than-not that it will be required to sell the debt security before recovery of the amortized cost. When the Company does not intend to sell the impaired debt security and it is more-likely-than-not that the Company will not be required to sell the impaired debt security prior to recovery of its amortized cost basis, the credit component of an OTTI of the impaired debt security is recognized as OTTI loss on the Consolidated Statement of Income and the non-credit component is recognized in other comprehensive income. This applies for both AFS and held-to-maturity investment securities. If the Company intends to sell the impaired debt security or it is more-likely-than-not that the Company will be required to sell the impaired debt security prior to recovery of its amortized cost basis, the full amount of the impairment loss (equal to the difference between the debt security’s amortized cost basis and its fair value at the balance sheet date) is recognized as OTTI loss on the Consolidated Statement of Income. Following the recognition of OTTI, the debt security’s new amortized cost basis is the previous basis minus the OTTI amount recognized in earnings.

Marketable equity securities that have readily determinable fair values are recorded at fair value with unrealized gains and losses, due to changes in fair value, reflected in earnings. Marketable equity securities include mutual fund investments are included in Investments in tax credit and other investments, net on the Consolidated Balance Sheet. Nonmarketable equity securities that do not have readily determinable fair values, exclude investments for which we hold a controlling interest in the investee. Nonmarketable equity securities include tax credit investments that are included in Investments in tax credit and other investments, net, and Other assets on the Consolidated Balance Sheet. These securities are accounted for under one of the following accounting methods:

• Equity Method — When we have the ability to exert significant influence over the investee.

• Cost Method — The cost method is applied to investments such as FRB and FHLB stock. These investments are held at their cost minus impairment. If impaired, the carrying value is written down to the fair value of the security.

• Measurement Alternative — This method is applied to all remaining nonmarketable equity securities. These securities are carried at cost less impairment, and adjusted for changes in fair value upon the occurrence of orderly observable transactions of the same or similar security of the same issuer.

Our review for impairment for equity method, cost method and measurement alternative securities typically includes an analysis of the facts and circumstances of each security, the intent or requirement to sell the security, the expectations of cash flows, capital needs and the viability of its business model. For equity method and cost method investments, we reduce the asset’s carrying value when we consider declines in value to be OTTI. For securities accounted for under the measurement alternative, we reduce the asset value when the fair value is less than the carrying value, without the consideration of recovery. For additional information on the Company’s OTTI evaluation, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements.

Restricted equity securities include FRB and FHLB stock. The FRB stock is required by law to be held as a condition of membership in the Federal Reserve System. The FHLB stock is required to obtain advances from the FHLB. They are carried at cost as they do not have a readily determinable fair value.

Loans Held-for-Sale — Loans are initially classified as loans held-for-sale when they are individually identified as being available for immediate sale and management has committed to a formal plan to sell them. Loans held-for-sale are carried at lower of cost or fair value. Subject to periodic review under the Company’s evaluation process, including asset/liability and credit risk management, the Company may transfer certain loans from held-for-investment to held-for-sale measured at lower of cost or fair value. Any write-downs in the carrying amount of the loan at the date of transfer is recorded as a charge-off to allowance for loan losses. Loan origination fees on loans held-for-sale, net of certain costs in processing and closing the loans, are deferred until the time of sale and are included in the periodic determination of the lower of cost or fair value adjustments and/or the gain or loss recognized at the time of sale. A valuation allowance is established if the fair value of such loans is lower than their cost, with a corresponding charge to noninterest income. If the loan or a portion of the loan cannot be sold, it is subsequently transferred back to the loans held-for-investment portfolio from the loans held-for-sale portfolio at the lower of cost or fair value on the transfer date.

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Loans Held-for-Investment — At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future”. Loans held-for-investment are stated at their outstanding principal, reduced by an allowance for loan losses and net of deferred loan fees or costs, or unearned fees on originated loans, net of unamortized premiums or unaccreted discounts on purchased loans. Nonrefundable fees and direct costs associated with the origination or purchase of loans are deferred and netted against outstanding loan balances. The deferred net loan fees and costs are recognized in interest income as an adjustment to yield over the loan term using the effective interest method or straight-line method. Discounts/premiums on purchased loans are accreted/amortized to interest income using the effective interest method or straight-line method over the remaining period to contractual maturity. Interest on loans is calculated using the simple-interest method on daily balances of the principal amounts outstanding. Generally, loans are placed on nonaccrual status when they become 90 days past due or more. Loans are considered past due when contractually required principal or interest payments have not been made on the due dates. Loans are also placed on nonaccrual status when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that full collection of principal or interest becomes uncertain, regardless of the length of past due status. Once a loan is placed on nonaccrual status, interest accrual is discontinued and all unpaid accrued interest is reversed against interest income. Interest payments received on nonaccrual loans are reflected as a reduction of principal and not as interest income. A loan is returned to accrual status when the borrower has demonstrated a satisfactory payment trend subject to management’s assessment of the borrower’s ability to repay the loan.

Troubled Debt Restructurings — A loan is classified as a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. The concessions may be granted in various forms, including a below-market change in the stated interest rate, a reduction in the loan balance or accrued interest, an extension of the maturity date with a stated interest rate lower than the current market rate or note splits referred to as A/B note restructurings. Loans with contractual terms that have been modified as a TDR and are current at the time of restructuring may remain on accrual status if there is demonstrated performance prior to the restructuring and payment in full under the restructured terms is expected. Otherwise, these loans are placed on nonaccrual status and are reported as nonperforming, until the borrower demonstrates a sustained period of performance, generally six months, and the ability to repay the loan according to the contractual terms. If accruing TDRs cease to perform in accordance with their modified contractual terms, they are placed on nonaccrual status and reported as nonperforming TDRs. TDRs are included in the impaired loan quarterly valuation allowance process. Refer to Impaired Loans below for a complete discussion.

Impaired Loans — Impaired loans are identified and evaluated for impairment on an individual basis. The Company’s impaired loans include predominantly loans held-for-investment on nonaccrual status or modified as a TDR designated either as performing or nonperforming, excluding purchased credit-impaired (“PCI”) loans. A loan is considered impaired when, based on current information and events, it is probable that the Company will not be able to collect all scheduled payments of principal or interest due in accordance with the original contractual terms of the loan agreement. Factors considered by management in determining and measuring loan impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of and the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed.

Impaired loans are measured based on the present value of expected future cash flows discounted at a designated discount rate or, as appropriate, at the loan’s observable market price or the fair value of the collateral, if the loan is collateral dependent, less cost to sell. When the value of an impaired loan is less than the recorded investment and the loan is classified as nonperforming and uncollectible, the deficiency is charged off against the allowance for loan losses. If the loan is a performing TDR, the deficiency is included in the specific reserves of the allowance for loan losses, as appropriate. Payments received on impaired loans classified as nonperforming are not recognized in interest income, but are applied as a reduction to the principal outstanding.

Allowance for Credit Losses — The allowance for credit losses (“ACL”) consists of the allowance for loan losses and unfunded credit commitments. The allowance for unfunded credit commitments include reserves provided for unfunded lending commitments, standby letters of credit (“SBLCs”) and recourse obligations for loans sold. The allowance for loan losses is established as management’s estimate of probable losses inherent in the Company’s lending activities. The allowance for loan losses is increased by the provision for loan losses and decreased by net charge-offs when management believes that the uncollectability of a loan is probable. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated quarterly by management based on periodic review of the collectability of the loans.

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The allowance for loan losses on non-PCI loans consists of specific and general reserves. The Company’s non-PCI loans fall into heterogeneous and homogeneous categories. Impaired loans are subject to specific reserves. Non-impaired loans are evaluated as part of the general reserve. General reserves are calculated by utilizing both quantitative and qualitative factors. There are different qualitative risks for the loans in each portfolio segment. Predominant risk characteristics of the commercial real estate (“CRE”), multifamily, single-family residential loans and home equity lines of credit (“HELOC”) loans consider the collateral and geographic locations of the properties collateralizing the loans. Predominant risk characteristics of the commercial and industrial (“C&I”) loans include cash flows, debt service and collateral of the borrowers and guarantors, as well as the economic and market conditions.

The Company also maintains an allowance for loan losses on PCI loans when there is deterioration in credit quality subsequent to acquisition. Based on the Company’s estimates of cash flows expected to be collected, the Company establishes an allowance for the PCI loans, with a charge to Provision for credit losses on the Consolidated Statement of Income.

When a loan is determined uncollectible, it is the Company’s policy to promptly charge off the difference between the recorded investment balance of the loan and either the fair value of the collateral or the discounted value of expected cash flows. Recoveries are recorded when payment is received on loans that were previously charged off through the allowance for loan losses. Allocation of a portion of the allowance to one segment of the loan portfolio does not preclude its availability to absorb losses in other segments.

The allowance for unfunded credit commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities, including an assessment of the probability of commitment usage, credit risk factors for loans outstanding, and the terms and expiration dates of the unfunded credit facilities.

The allowance for loan losses is reported separately on the Consolidated Balance Sheet, whereas the allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Provision for credit losses is reported on the Consolidated Statement of Income.

Purchased Credit-Impaired Loans — Acquired loans are recorded at fair value as of acquisition date in accordance with ASC 805, Business Combinations. A purchased loan is deemed to be credit impaired when there is evidence of credit deterioration since its origination and it is probable at the acquisition date that the Company would be unable to collect all contractually required payments and is accounted for under ASC 310-30, Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality. Under ASC 310-30, loans are recorded at fair value at acquisition date, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded as of the acquisition date.

The excess of cash flows expected to be collected over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. The excess of total contractual cash flows over the cash flows expected to be received at origination is deemed the “nonaccretable difference.” In estimating the nonaccretable difference, the Company (a) calculates the contractual amount and timing of undiscounted principal and interest payments (the “undiscounted contractual cash flows”) and (b) estimates the amount and timing of undiscounted expected principal and interest payments (the “undiscounted expected cash flows”). The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions such as cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. Subsequent to the acquisition date, based on the quarterly evaluations of remaining cash flows from principal and interest payments expected to be collected, any increases in expected cash flows over the expected cash flows at purchase date in excess of fair value that are significant and probable are adjusted through the accretable yield on a prospective basis. Any subsequent decreases in expected cash flows over the expected cash flows at purchase date that are probable are recognized by a charge to the provision for loan losses. Any disposals of loans, including sales of loans, payments in full or foreclosures, result in the removal of the loan from the ASC 310-30 portfolio at the carrying amount.

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Variable Interest and Voting Interest Entities — The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity (“VIE”). We first determine whether or not we have variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that we do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. A VIE is an entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. The Company consolidates a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For entities that do not meet the definition of a VIE, the entity is considered a voting interest entity. We consolidate these entities if we can exert control over the financial and operating policies of an investee, which can occur if we have a 50% or more voting interest in the entity.

Investments in Qualified Affordable Housing Partnerships, Net, Tax Credit and Other Investments, Net — The Company records the investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

The Company records investments in tax credit and other investments, net, using either the equity method or cost method of accounting. The tax credits are recognized on the Consolidated Financial Statements to the extent they are utilized on the Company’s income tax returns in the year the credit arises under the flow-through method of accounting. The investments are reviewed for impairment on an annual basis or on an interim basis, if an event occurs that would trigger potential impairment.

Premises and Equipment, Net — The Company’s premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed based on the straight-line method over the estimated useful lives of the various classes of assets. The ranges of estimated useful lives for the principal classes of assets are as follows:

Premises and Equipment	Useful Lives
Buildings	25 years
Furniture, fixtures and equipment, building improvements	3 to 7 years
Leasehold improvements	Term of lease or useful life, whichever is shorter

The Company reviews its long-lived assets for impairment annually, or when events or changes in circumstances indicate that the carrying amounts of these assets may not be recoverable. An asset is considered impaired when the fair value, which is the expected undiscounted cash flows over the remaining useful life, is less than the net book value. The excess of the net book value over its fair value is charged as impairment loss to noninterest expense.

Goodwill and Other Intangible Assets — Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. Goodwill is not amortized, but is tested for impairment on an annual basis or more frequently as events occur or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value. Other intangible assets are primarily comprised of core deposit intangibles. Core deposit intangibles, which represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions, are amortized over the projected useful lives of the deposits, which is typically 8 to 15 years. Core deposit intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant. Impairment on goodwill and core deposit intangibles is recognized by writing down the asset as a charge to noninterest expense to the extent that the carrying value exceeds the estimated fair value.

Derivatives — As part of its asset and liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate and foreign currency risks, and to assist customers with their risk management objectives.  Derivatives utilized by the Company include primarily swaps, forwards and option contracts.  Derivative instruments are included in Other assets or Accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. The related cash flows are recognized on the Cash flows from operating activities section on the Consolidated Statement of Cash Flows. The Company uses its accounting hedges based on the exposure being hedged as either fair value hedges or hedges of the net investments in certain foreign operations. For fair value hedges of interest rate risk, changes in fair value of derivatives are reported in Interest expense on the Consolidated Statement of Income. Changes in fair value of derivatives designated as hedges of the net investments in foreign operations are recorded as a component of AOCI.

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All derivatives designated as fair value hedges and hedges of the net investments in certain foreign operations are linked to specific hedged items or to groups of specific assets and liabilities on the Consolidated Balance Sheet. To qualify as an accounting hedge under the hedge accounting rules (versus an economic hedge where hedge accounting is not sought), a derivative must be highly effective in offsetting the risk designated as being hedged. The Company formally documents its hedging relationships at inception, including the identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction at the time the derivative contract is executed. Subsequent to inception, on a quarterly basis, the Company assesses whether the derivatives used in hedging transactions are highly effective in offsetting changes in the fair value of the hedged items. Retrospective effectiveness is also assessed, as well as the continued expectation that the hedge will remain effective prospectively.

The Company discontinues hedge accounting prospectively when (i) a derivative is no longer highly effective in offsetting changes in fair value; (ii) a derivative expires, or is sold, terminated or exercised, or (iii) the Company determines that designation of a derivative as a hedge is no longer appropriate.  If a fair value hedge is discontinued, the derivative will continue to be recorded on the Consolidated Balance Sheet at fair value with changes in fair value recognized on the Consolidated Statement of Income. When the hedged net investment is either sold or substantially liquidated, changes in the fair value of the derivatives are reclassified out of AOCI into Foreign exchange income on the Consolidated Statement of Income.

The Company also offers various interest rate, foreign currency, and energy commodity derivative products to customers. These transactions are not linked to specific assets or liabilities on the Consolidated Balance Sheet or to forecasted transactions in a hedging relationship and, therefore, do not qualify for hedge accounting. These contracts are recorded at fair value with changes in fair value recorded on the Consolidated Statement of Income.

As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of public or private companies it provides loans to. These equity warrants are accounted for as derivatives and recorded at fair value included in Other assets on the Consolidated Balance Sheet with changes in fair value recorded on the Consolidated Statement of Income.

The Company is exposed to counterparty credit risk, which is the risk that counterparties to the derivative contracts do not perform as expected. Valuation of derivative assets and liabilities reflect the value of the instrument inclusive of the non-performance risk. The Company uses master netting arrangements to mitigate counterparty credit risk in derivative transactions. To the extent the derivatives are subject to master netting arrangements, the Company takes into account the impact of master netting arrangements that allow the Company to settle all derivative contracts executed with the same counterparty on a net basis, and to offset the net derivative position with the related cash collateral and securities. The Company elected to offset derivative transactions with the same counterparty on the Consolidated Balance Sheet when a derivative transaction has a legally enforceable master netting arrangement and when it is eligible for netting under ASC 210-20-45-1, Balance Sheet Offsetting: Netting Derivative Positions on Balance Sheet. Derivative balances and related cash collateral are presented net on the Consolidated Balance Sheet. In addition, the Company applied the Settlement to Market treatment for the cash collateralizing our interest rate and commodity contracts with certain centrally cleared counterparties. As a result, derivative balances with these counterparties are considered settled by the collateral.

Fair Value — Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date and, in many cases, requires management to make a number of significant judgments. Fair value measurements are based on the exit price notion and are determined by maximizing the use of observable inputs. However, for certain instruments, we must utilize unobservable inputs in determining fair value due to the lack of observable inputs in the market, which requires greater judgment in the measurement of fair value. Based on the inputs used in the valuation techniques, the Company classifies its assets and liabilities measured and disclosed at fair value in accordance with a three-level hierarchy (i.e., Level 1, Level 2 and Level 3) established under ASC 820, Fair Value Measurements. The Company records certain financial instruments, such as AFS investment securities, and derivative assets and liabilities, at fair value on a recurring basis. Certain financial instruments, such as impaired loans and loans held-for-sale, are not carried at fair value each period but may require nonrecurring fair value adjustments due to lower-of-cost-or-market accounting or write-downs of individual assets. For additional information on fair value, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

Stock-Based Compensation — The Company issues stock-based awards to eligible employees, officers and directors, and accounts for the related costs in accordance with the provisions of ASC 505, Equity and ASC 718, Compensation — Stock Compensation. Stock-based compensation cost is measured at the grant date based on the fair value of the awards and expensed over the employee’s requisite service period.

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The Company grants restricted stock units (“RSUs”), which include service conditions for vesting. Additionally, some of the Company’s RSUs contain performance goals and market conditions that are required to be met in order for the awards to vest. RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. RSUs are authorized to settle predominantly in shares of the Company’s common stock. Compensation cost for those awards is based on quoted market price of the Company’s common stock at the grant date. Certain RSUs will be settled in cash, which subjects these RSUs to variable accounting whereby the compensation cost is adjusted to fair value based on changes in the Company’s stock price up to the settlement date. Compensation cost is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award. Effective January 1, 2017, the Company prospectively adopted ASU 2016-09, Compensation — Stock Compensation (Topic 718): Improvement to Employee Share-Based Payment Accounting. As a result of its adoption, all excess tax benefits and deficiencies on share-based payment awards are recognized within Income tax expense on the Consolidated Statement of Income. Before 2017, the tax benefits were recorded as increases to Additional paid-in capital on the Consolidated Balance Sheet.

For time-based RSUs, the grant-date fair value is measured at the fair value of the Company’s common stock as if the RSUs are vested and issued on the date of grant. For performance-based RSUs, the grant-date fair value considers both performance and market conditions. As stock-based compensation expense is estimated based on awards ultimately expected to vest, it is reduced by the expense related to awards expected to be forfeited. Forfeitures are estimated at the time of grant and are updated quarterly. If the estimated forfeitures are revised, a cumulative effect of changes in estimated forfeitures for the current and prior periods is recognized in compensation expense in the period of change. For performance-based RSUs, the compensation expense fluctuates based on the estimated outcome of meeting the performance conditions. The Company evaluates the probable outcome of the performance conditions quarterly and makes cumulative adjustments for current and prior periods in compensation expense in the period of change. Market conditions subsequent to the grant date have no impact on the amount of compensation expense the Company will recognize over the life of the award. Refer to Note 16 — Stock Compensation Plans to the Consolidated Financial Statements in this Form 10-K for additional information.

Income Taxes — The Company files consolidated federal income tax returns, foreign tax returns, and various combined and separate company state tax returns. The calculation of the Company's income tax provision and related tax accruals requires the use of estimates and judgments. Accrued income tax liabilities (assets) represent the estimated amounts due to (received from) the various taxing jurisdictions where the Company has established a business presence. Under the balance sheet method, deferred tax assets and liabilities are recognized for the expected future tax consequences of existing temporary differences between the financial reporting and tax reporting basis of assets and liabilities using enacted tax laws and rates and tax carryforwards. To the extent a deferred tax asset is no longer expected more-likely-than-not to be realized, a valuation allowance is established. See Note 14 — Income Taxes to the Consolidated Financial Statements for a discussion of management’s assessment of evidence considered by the Company in establishing a valuation allowance.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. Uncertain tax positions that meet the more-likely-than-not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. The Company establishes a liability for potential taxes, interest and penalties related to uncertain tax positions based on facts and circumstances, including the interpretation of existing law, new judicial or regulatory guidance, and the status of tax audits.

Earnings Per Share — Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period, plus any incremental dilutive common share equivalents calculated for warrants and RSUs outstanding using the treasury stock method.

Foreign Currency Translation — The Company’s foreign subsidiary in China, East West Bank (China) Limited’s functional currency is in Chinese Renminbi (“RMB”). As a result, assets and liabilities of East West Bank (China) Limited are translated, for consolidation purpose, from its functional currency into U.S. Dollar (“USD”) using period-end spot foreign exchange rates. Revenues and expenses of East West Bank (China) Limited are translated, for the purpose of consolidation, from its functional currency into USD at the transaction date foreign exchange rates. The effects of those translation adjustments are reported in the Foreign currency translation adjustments account within Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of any related hedged effects. For transactions that are denominated in a currency other than the functional currency, including transactions denominated in the local currencies of foreign operations that use the USD as their functional currency, the effects of changes in exchange rates are primarily reported on the Consolidated Statement of Income.

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New Accounting Pronouncements Adopted in 2019

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2019
ASU 2016-02, Leases (Topic 842) and subsequent related ASUs	January 1, 2019 for leases standards other than ASU 2019-01 January 1, 2020 for ASU 2019-01 where early adoption is permitted.	ASC Topic 842, Leases, supersedes ASC Topic 840, Leases. This ASU requires lessees to recognize right-of-use assets and related lease liabilities for all leases with lease terms of more than 12 months on the Consolidated Balance Sheet, and provide quantitative and qualitative disclosures regarding key information about the leasing arrangements. For short-term leases with a term of 12 months or less, lessees can make a policy election not to recognize lease assets and lease liabilities. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. Lessee accounting for finance leases, as well as lessor accounting is largely unchanged. The standard may be adopted using a modified retrospective approach through a cumulative-effect adjustment. In addition, the FASB issued ASU 2018-11, Leases (Topic 842) Targeted Improvements, which provides companies the option to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year they adopt ASU 2016-02. Companies that elect this transition option can recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented.	The Company adopted all the new lease standards on January 1, 2019 using the alternative transition method, which allows the adoption of the accounting standard prospectively without revising comparable prior periods’ financial information. On January 1, 2019, the Company recognized $109.1 million and $117.7 million increase in right-of-use assets and associated lease liabilities, respectively, based on the present value of the expected remaining operating lease payments. In addition, the Company also recognized a cumulative-effect adjustment, net of tax of $10.5 million to increase beginning balance of retained earnings as of January 1, 2019 related to the deferred gains on our prior sale and leaseback transactions that occurred prior to the date of adoption. The adoption of the new leases standards did not have a material impact on the Company’s Consolidated Statement of Income. Disclosures related to leases are included in Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K.
ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes	January 1, 2019 Early adoption (including adoption in an interim period) is permitted for entities that already adopted ASU 2017-12.	This ASU amends ASC Topic 815, Derivatives and Hedging, by adding the OIS rate based on SOFR to the list of U.S. benchmark interest rates that are eligible to be hedged to facilitate the London Interbank Offered Rate (“LIBOR”) to SOFR transition. The guidance should be applied prospectively for qualifying new or redesignated hedging relationships entered into on or after the date of adoption.	The Company adopted ASU 2018-16 prospectively on January 1, 2019. The adoption of this guidance did not impact existing hedges but may impact new hedge relationships that are benchmarked against the SOFR OIS rate.

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Recent Accounting Pronouncements

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2020
ASU 2016-13,  Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and subsequent related ASUs	January 1, 2020 Early adoption is permitted on January 1, 2019.	The ASU introduces a new current expected credit loss (“CECL”) impairment model that applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loan receivables, AFS and held-to-maturity debt securities, net investments in leases and off-balance sheet credit exposures. The CECL model utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted in each period for changes in expected lifetime credit losses. This ASU also expands the disclosure requirements regarding an entity’s assumptions, models and methods for estimating the allowance for loan and lease losses, and requires disclosure of the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination (i.e., by vintage year). The guidance should be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption. The new guidance also allows optional relief for certain instruments measured at amortized cost with an option to irrevocably elect the fair value option under ASC Topic 825, Financial Instruments.	The Company adopted ASU 2016-13 using a modified retrospective approach on January 1, 2020 without electing the fair value option on eligible financial instruments under ASU 2019-05. The Company has completed its implementation of the new processes and controls over the new credit and loss aggregation models, completed two parallel runs, analyzed model results, revised the qualitative framework and updated policies and disclosures. Upon adoption of the ASU, the Company‘s ACL, which includes the reserve for unfunded credit commitments, increased approximately 34% from $369.4 million as of December 31, 2019. This impact was recorded as a cumulative-effect adjustment that reduced retained earnings on January 1, 2020.  This increase in ACL was mainly driven by the Company’s C&I and CRE loan portfolios due to the capture of lifetime expected credit losses under the new guidance. There was no ACL recorded on the AFS securities portfolio upon the adoption of this guidance. The regulatory rules provide the banks with the option to elect a three-year phase-in of the “day one” impact of CECL. The Company has elected not to apply the three-year phased-in approach in its first quarter 2020’s regulatory capital calculations. Upon adoption of CECL, the Company and the Bank are well-capitalized.
ASU2017-04,  Intangibles — Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	January 1, 2020 Early adoption is permitted for interim or annual goodwill impairment tests with measurement dates after January 1, 2017.	The ASU simplifies the accounting for goodwill impairment. Under this guidance, an entity will no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, an impairment loss will be recognized when the carrying amount of a reporting unit exceeds its fair value. The guidance also eliminates the requirement to perform a qualitative assessment for any reporting units with a zero or negative carrying amount. This guidance should be applied prospectively.	The Company adopted this guidance on January 1, 2020. The Company does not expect the adoption of this guidance to have a material impact on the Company’s Consolidated Financial Statements.
ASU 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020 Early adoption is permitted.	The ASU amends ASC Topic 350-40 to align the accounting for costs incurred in a cloud computing arrangement with the guidance on developing internal use software. Specifically, if a cloud computing arrangement is deemed to be a service contract, certain implementation costs are eligible for capitalization. The new guidance prescribes the balance sheet and income statement presentation and cash flow classification for the capitalized costs and related amortization expense. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.	The Company adopted this guidance on a prospective basis on January 1, 2020. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

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Note 2 — Dispositions

In the first quarter of 2017, the Company completed the sale and leaseback of a commercial property in San Francisco, California for cash consideration of $120.6 million and entered into a leaseback with the buyer for part of the property, consisting of a retail branch and office facilities. The net book value of the property was $31.6 million at the time of the sale, resulting in a pre-tax gain of $85.4 million after considering $3.6 million in selling costs. As the leaseback is an operating lease, $71.7 million of the gain was recognized on the closing date, and $13.7 million was deferred. Upon the adoption of ASU 2016-02, Leases, (Topic 842) on January 1, 2019, any remaining deferred gains related to sale and leaseback transactions were recognized as a cumulative-effect adjustment to increase beginning retained earnings as of January 1, 2019.

In the third quarter of 2017, the Company sold the insurance brokerage business of its subsidiary, EWIS, for $4.3 million, and recorded a pre-tax gain of $3.8 million. EWIS remains a subsidiary of East West and continues to maintain its insurance broker license.

On March 17, 2018, the Bank completed the sale of its eight Desert Community Bank (“DCB”) branches located in the High Desert area of Southern California to Flagstar Bank, a wholly-owned subsidiary of Flagstar Bancorp, Inc. The assets and liability of the DCB branches that were sold in this transaction primarily consisted of $613.7 million of deposits, $59.1 million of loans, $9.0 million of cash and cash equivalents, and $7.9 million of premises and equipment. The transaction resulted in a net cash payment of $499.9 million by the Company to Flagstar Bank. After transaction costs, the sale resulted in a pre-tax gain of $31.5 million for the year ended December 31, 2018, which was reported as Net gain on sale of business on the Consolidated Statement of Income.

Note 3 — Fair Value Measurement and Fair Value of Financial Instruments

Fair Value Determination

Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining the fair value of financial instruments, the Company uses various methods including market and income approaches. Based on these approaches, the Company utilizes certain assumptions that market participants would use in pricing an asset or a liability. These inputs can be readily observable, market corroborated or generally unobservable. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy noted below is based on the quality and reliability of the information used to determine fair value. The fair value hierarchy gives the highest priority to quoted prices available in active markets and the lowest priority to data lacking transparency. The fair value of the Company’s assets and liabilities is classified and disclosed in one of the following three categories:

• Level 1 — Valuation is based on quoted prices for identical instruments traded in active markets.

• Level 2 — Valuation is based on quoted prices for similar instruments traded in active markets; quoted prices for identical or similar instruments traded in markets that are not active; and model-derived valuations whose inputs are observable and can be corroborated by market data.

• Level 3 — Valuation is based on significant unobservable inputs for determining the fair value of assets or liabilities. These significant unobservable inputs reflect assumptions that market participants may use in pricing the assets or liabilities.

The classification of assets and liabilities within the hierarchy is based on whether inputs to the valuation methodology used are observable or unobservable, and the significance of those inputs in the fair value measurement. The Company’s assets and liabilities are classified in their entirety based on the lowest level of input that is significant to their fair value measurements.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following section describes the valuation methodologies used by the Company to measure financial assets and liabilities on a recurring basis, as well as the general classification of these instruments pursuant to the fair value hierarchy.

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Available-for-Sale Investment Securities — When available, the Company uses quoted market prices to determine the fair value of AFS investment securities, which are classified as Level 1. Level 1 AFS investment securities are comprised of U.S. Treasury securities. The fair value of other AFS investment securities is generally determined by independent external pricing service providers who have experience in valuing these securities or by taking the average quoted market prices obtained from independent external brokers. The valuations provided by the third-party pricing service providers are based on observable market inputs, which include benchmark yields, reported trades, issuer spreads, benchmark securities, bids, offers, prepayment expectation and reference data obtained from market research publications. Inputs used by the third-party pricing service in valuing collateralized mortgage obligations and other securitization structures also include new issue data, monthly payment information, whole loan collateral performance, tranche evaluation and “To Be Announced” prices. In valuing securities issued by state and political subdivisions, inputs used by third-party pricing service providers also include material event notices.

On a monthly basis, the Company validates the valuations provided by third-party pricing service providers to ensure that the fair value determination is consistent with the applicable accounting guidance and the financial instruments are properly classified in the fair value hierarchy. To perform this validation, the Company evaluates the fair values of securities by comparing the fair values provided by the third-party pricing service to prices from other available independent sources for the same securities. When variances in prices are identified, the Company further compares inputs used by different sources to ascertain the reliability of these sources. On a quarterly basis, the Company reviews the documentation received from the third-party pricing service providers regarding the valuation inputs and methodology used for each category of securities.

When pricing is unavailable from third-party pricing service for certain securities, the Company requests market quotes from various independent external brokers and utilizes the average quoted market prices. Since these valuations are based on observable inputs in the current marketplace and are classified as Level 2. The Company periodically communicates with the independent external brokers to validate their pricing methodology. Information such as pricing sources, pricing assumptions, data inputs and valuation technique are reviewed.

Equity Securities — Equity securities were comprised of mutual funds as of both December 31, 2019 and 2018. The Company uses Net Asset Value (“NAV”) information to determine the fair value of these equity securities. When NAV is available periodically and the equity securities can be put back to the transfer agents at the publicly available NAV, the fair value of the equity securities is classified as Level 1. When NAV is available periodically but the equity securities may not be readily marketable at its periodic NAV in the secondary market, the fair value of these equity securities is classified as Level 2.

Interest Rate Contracts — The Company enters into interest rate swap and option contracts with its borrowers to lock in attractive intermediate and long-term interest rates, resulting in the customer obtaining a synthetic fixed-rate loan. To economically hedge against the interest rate risks in the products offered to its customers, the Company enters into mirrored offsetting interest rate contracts with third-party financial institutions. The Company also enters into interest rate swap contracts with institutional counterparties to hedge against certificates of deposit issued. The fair value of the interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The fair value of the interest rate options, which consist of floors and caps, is determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fall below (rise above) the strike rate of the floors (caps). In addition, to comply with the provisions of ASC 820, Fair Value Measurement, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives. The credit valuation adjustments associated with the Company’s derivatives utilize model-derived credit spreads, which are Level 3 inputs. As of December 31, 2019 and 2018, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of these interest rate contracts and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivative portfolios. As a result, the Company classifies these derivative instruments as Level 2 due to the observable nature of the significant inputs utilized.

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Foreign Exchange Contracts — The Company enters into foreign exchange contracts to accommodate the business needs of its customers. For a majority of the foreign exchange contracts entered with its customers, the Company entered into offsetting foreign exchange contracts with third-party financial institutions to manage its exposure. The Company also utilizes foreign exchange contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in certain foreign currency on-balance sheet assets and liabilities, primarily foreign currency denominated deposits that it offers to its customers. The fair value is determined at each reporting period based on changes in the foreign exchange rates. These are over-the-counter contracts where quoted market prices are not readily available. Valuation is measured using conventional valuation methodologies with observable market data. Due to the short-term nature of the majority of these contracts, the counterparties’ credit risks are considered nominal and result in no adjustments to the valuation of the foreign exchange contracts. Due to the observable nature of the inputs used in deriving the fair value of these contracts, the valuation of foreign exchange contracts are classified as Level 2. The Company held foreign currency non-deliverable forward contracts as of December 31, 2019 and held foreign swap contracts as of December 31, 2018 to hedge its net investment in its China subsidiary, East West Bank (China) Limited, a non-USD functional currency subsidiary in China. These foreign currency non-deliverable forward and swap contracts were designated as net investment hedges. The fair value of foreign currency contracts is valued by comparing the contracted foreign exchange rate to the current market foreign exchange rate. Key inputs of the current market exchange rate include spot rates and forward rates of the contractual currencies. Foreign exchange forward curves are used to determine which forward rate pertains to a specific maturity. Due to the observable nature of the inputs used in deriving the estimated fair value, these instruments are classified as Level 2.

Credit Contracts — The Company may periodically enter into credit risk participation agreements (“RPAs”) to manage the credit exposure on interest rate contracts associated with the syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. The fair value of RPAs is calculated by determining the total expected asset or liability exposure of the derivatives to the borrowers and applying the borrowers’ credit spread to that exposure. Total expected exposure incorporates both the current and potential future exposure of the derivatives, derived from using observable inputs, such as yield curves and volatilities. The majority of the inputs used to value the RPAs are observable. Accordingly, RPAs fall within Level 2.

Equity Contracts — As part of the loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of technology and life sciences companies it provides loans to. As of December 31, 2019 and 2018, the warrants included on the Consolidated Financial Statements were from both public and private companies. The Company values these warrants based on the Black-Scholes option pricing model. For equity warrants from public companies, the model uses the underlying stock price, stated strike price, warrant expiration date, risk-free interest rate based on a duration-matched U.S. Treasury rate and market-observable company-specific option volatility as inputs to value the warrants. Due to the observable nature of the inputs used in deriving the estimated fair value, warrants from public companies are classified as Level 2. For warrants from private companies, the model uses inputs such as the offering price observed in the most recent round of funding, stated strike price, warrant expiration date, risk-free interest rate based on duration-matched U.S. Treasury rate and option volatility. The Company applies proxy volatilities based on the industry sectors of the private companies. The model values are then adjusted for a general lack of liquidity due to the private nature of the underlying companies. Due to the unobservable nature of the option volatility and liquidity discount assumptions used in deriving the estimated fair value, warrants from private companies are classified as Level 3. Since both option volatility and liquidity discount assumptions are subject to management’s judgment, measurement uncertainty is inherent in the valuation of private companies’ equity warrants. Given that the Company holds long positions in all equity warrants, an increase in volatility assumption would generally result in an increase in fair value measurement. A higher liquidity discount would result in a decrease in fair value measurement. On a quarterly basis, the changes in the fair value of warrants from private companies are reviewed for reasonableness, and a measurement uncertainty analysis on the option volatility and liquidity discount assumptions is performed.

Commodity Contracts — The Company enters into energy commodity contracts in the form of swaps and options with its commercial loan customers to allow them to hedge against the risk of fluctuation in energy commodity prices. The fair value of the commodity option contracts is determined using the Black’s model and assumptions that include expectations of future commodity price and volatility. The future commodity contract price is derived from observable inputs such as the market price of the commodity. Commodity swaps are structured as an exchange of fixed cash flows for floating cash flows. The fixed cash flows are predetermined based on the known volumes and fixed price as specified in the swap agreement. The floating cash flows are correlated with the change of forward commodity prices, which is derived from market corroborated futures settlement prices. The fair value of the commodity swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments) based on the market prices of the commodity. As a result, the Company classifies these derivative instruments as Level 2 due to the observable nature of the significant inputs utilized.

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The following tables present financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	176,422	$	—		$	—	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	—		581,245			—		581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		603,471			—		603,471
Residential mortgage-backed securities	—		1,003,897			—		1,003,897
Municipal securities	—		102,302			—		102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		88,550			—		88,550
Residential mortgage-backed securities	—		46,548			—		46,548
Corporate debt securities	—		11,149			—		11,149
Foreign bonds	—		354,172			—		354,172
Asset-backed securities	—		64,752			—		64,752
Collateralized loan obligations (“CLOs”)	—		284,706			—		284,706
Total AFS investment securities	$	176,422	$	3,140,792		$	—	$	3,317,214
Investments in tax credit and other investments:
Equity securities (1)	$	21,746	$	9,927		$	—	$	31,673
Total investments in tax credit and other investments	$	21,746	$	9,927		$	—	$	31,673
Derivative assets:
Interest rate contracts	$	—	$	192,883		$	—	$	192,883
Foreign exchange contracts	—		54,637			—		54,637
Credit contracts	—		2			—		2
Equity contracts	—		993			421		1,414
Commodity contracts	—		81,380			—		81,380
Gross derivative assets	$	—	$	329,895		$	421	$	330,316
Netting adjustments (2)	$	—	$	(125,319	)	$	—	$	(125,319	)
Net derivative assets	$	—	$	204,576		$	421	$	204,997
Derivative liabilities:
Interest rate contracts	$	—	$	127,317		$	—	$	127,317
Foreign exchange contracts	—		48,610			—		48,610
Credit contracts	—		84			—		84
Commodity contracts	—		80,517			—		80,517
Gross derivative liabilities	$	—	$	256,528		$	—	$	256,528
Netting adjustments (2)	$	—	$	(159,799	)	$	—	$	(159,799	)
Net derivative liabilities	$	—	$	96,729		$	—	$	96,729

(1) Equity securities are comprised of mutual funds with readily determinable fair values.

(2) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

100

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	564,815	$	—		$	—	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	—		217,173			—		217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		408,603			—		408,603
Residential mortgage-backed securities	—		946,693			—		946,693
Municipal securities	—		82,020			—		82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		26,052			—		26,052
Residential mortgage-backed securities	—		9,931			—		9,931
Corporate debt securities	—		10,869			—		10,869
Foreign bonds	—		463,048			—		463,048
Asset-backed securities	—		12,643			—		12,643
Total AFS investment securities	$	564,815	$	2,177,032		$	—	$	2,741,847
Investments in tax credit and other investments:
Equity securities (1)	$	20,678	$	10,531		$	—	$	31,209
Total investments in tax credit and other investments	$	20,678	$	10,531		$	—	$	31,209
Derivative assets:
Interest rate contracts	$	—	$	69,818		$	—	$	69,818
Foreign exchange contracts	—		21,624			—		21,624
Credit contracts	—		1			—		1
Equity contracts	—		1,278			673		1,951
Commodity contracts	—		14,422			—		14,422
Gross derivative assets	$	—	$	107,143		$	673	$	107,816
Netting adjustments (2)	$	—	$	(45,146	)	$	—	$	(45,146	)
Net derivative assets	$	—	$	61,997		$	673	$	62,670
Derivative liabilities:
Interest rate contracts	$	—	$	75,133		$	—	$	75,133
Foreign exchange contracts	—		19,940			—		19,940
Credit contracts	—		164			—		164
Commodity contracts	—		23,068			—		23,068
Gross derivative liabilities	$	—	$	118,305		$	—	$	118,305
Netting adjustments (2)	$	—	$	(38,402	)	$	—	$	(38,402	)
Net derivative liabilities	$	—	$	79,903		$	—	$	79,903

(1) Equity securities were comprised of mutual funds with readily determinable fair values.

(2) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

101

Level 3 fair value measurements that were measured on a recurring basis consist of equity warrants issued by private companies as of and for the years ended December 31, 2019, 2018 and 2017. The following table provides a reconciliation of the beginning and ending balances of these equity warrants for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
	Equity Warrants			Equity Warrants			Other Securities			Equity Warrants
Beginning balance	$	673		$	679		$	—		$	—
Transfer of investment security from held-to-maturity to AFS	—			—			115,615			—
Total gains included in earnings (1)	563			162			1,156			—
Issuances	114			65			—			679
Sales	—			—			(116,771		)	—
Settlements	(929		)	(233		)	—			—
Ending balance	$	421		$	673		$	—		$	679

(1) Includes unrealized (losses) gains of $(292) thousand and $225 thousand for the years ended December 31, 2019 and 2018, respectively. There were no unrealized gains (losses) for the year ended December 31, 2017. The realized/unrealized gains (losses) of equity warrants are included in Lending fees on the Consolidated Statement of Income.

The following table presents quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements as of December 31, 2019 and 2018. The significant unobservable inputs presented in the table below are those that the Company considers significant to the fair value of the Level 3 assets. The Company considers unobservable inputs to be significant if, by their exclusion, the fair value of the Level 3 assets would be impacted by a predetermined percentage change.

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique	Unobservable Inputs	Range of Inputs	Weighted-  Average (1)
December 31, 2019
Derivative assets:
Equity warrants	$	421	Black-Scholes option pricing model	Equity volatility	39% — 44%	42%
				Liquidity discount	47%	47%
December 31, 2018
Derivative assets:
Equity warrants	$	673	Black-Scholes option pricing model	Equity volatility	49% — 52%	51%
				Liquidity discount	47%	47%

(1) Weighted-average is calculated based on fair value of equity warrants as of December 31, 2019 and 2018, respectively.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Assets measured at fair value on a nonrecurring basis include certain non-PCI loans, investments in qualified affordable housing partnerships, tax credit and other investments, OREO, and loans held-for-sale. Nonrecurring fair value adjustments result from impairment on certain non-PCI loans and investments in qualified affordable housing partnerships, tax credit and other investments, write-downs of OREO, or from the application of lower of cost or fair value on loans held-for-sale.

Non-PCI Impaired Loans — The Company typically adjusts the carrying amount of impaired loans when there is evidence of probable loss and when the expected fair value of the loan is less than its carrying amount. Impaired loans with specific reserves are classified as Level 3 assets. The following two methods are used to derive the fair value of impaired loans:

• Discounted cash flows valuation techniques that consist of developing an expected stream of cash flows over the life of the loans and then valuing the loans at the present value by discounting the expected cash flows at a designated discount rate.

102

• A specific reserve is established for an impaired loan based on the fair value of the underlying collateral, which may take the form of real estate, inventory, equipment, contracts or guarantees. The fair value of the underlying collateral is generally based on third-party appraisals, or an internal valuation if a third-party appraisal is not required by regulations, which utilize one or more valuation techniques such as income, market and/or cost approaches.

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net — As part of the Company’s monitoring process, the Company conducts ongoing due diligence on the Company’s investments in its qualified affordable housing partnerships, tax credit and other investments after the initial investment date and prior to the being placed in service date. After these investments are either acquired or placed into service, periodic monitoring is performed, which includes the quarterly review of the financial statements of the tax credit investment entity and the annual review of the financial statements of the guarantor (if any), as well as the review of the annual tax returns of the tax credit investment entity; and comparison of the actual cash distributions received against the financial projections prepared at the time when the investment was made. The Company assesses its tax credit investments for possible OTTI on an annual basis or when events or circumstances suggest that the carrying amount of the tax credit investments may not be realizable. These circumstances can include, but are not limited to the following factors:

• The current fair value of the tax credit investment based upon the expected future cash flows is less than the carrying amount;

• Change in the economic, market or technological environment that could adversely affect the investee’s operations; and

• Other factors that raise doubt about the investee’s ability to continue as a going concern, such as negative cash flows from operations and the continuing prospects of the underlying operations of the investment.

All available evidence is considered in assessing whether a decline in value is other-than-temporary. Generally, none of the aforementioned factors are individually conclusive and the relative importance placed on individual facts may vary depending on the situation. In accordance with ASC 323-10-35-32, an impairment charge would only be recognized in earnings for a decline in value that is determined to be other-than-temporary.

Other Real Estate Owned — The Company’s OREO represents properties acquired through foreclosure, or through full or partial satisfaction of loans held-for-investment. These OREO properties are recorded at estimated fair value less the costs to sell at the time of foreclosure or at the lower of cost or estimated fair value less the costs to sell subsequent to acquisition. On a monthly basis, the current fair market value of each OREO property is reviewed to ensure that the current carrying value is appropriate. OREO properties are classified as Level 3.

The following tables present the carrying amounts of assets that were still held and had fair value changes measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	47,554	$	47,554
CRE:
CRE	—		—		753		753
Total commercial	—		—		48,307		48,307
Consumer:
Residential mortgage:
HELOCs	—		—		1,372		1,372
Total consumer	—		—		1,372		1,372
Total non-PCI impaired loans	$	—	$	—	$	49,679	$	49,679
OREO (1)	$	—	$	—	$	125	$	125
Investments in tax credit and other investments, net	$	—	$	—	$	3,076	$	3,076

(1) Amounts are included in Other assets on the Consolidated Balance Sheet and represent the carrying value of OREO properties that were written down subsequent to their initial classification as OREO.

103

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	26,873	$	26,873
CRE:
CRE	—		—		3,434		3,434
Total commercial	—		—		30,307		30,307
Consumer:
Residential mortgage:
Single-family residential	—		—		2,551		2,551
Total consumer	—		—		2,551		2,551
Total non-PCI impaired loans	$	—	$	—	$	32,858	$	32,858

The following table presents the increase (decrease) in fair value of assets for which a fair value adjustment has been recognized for the years ended December 31, 2019, 2018 and 2017, related to assets that were still held as of those dates:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI impaired loans:
Commercial:
C&I	$	(35,365	)	$	(9,341	)	$	(19,703	)
CRE:
CRE	9			270			(272		)
Construction and land	—			—			(147		)
Total CRE	9			270			(419		)
Total commercial	(35,356		)	(9,071		)	(20,122		)
Consumer:
Residential mortgage:
Single-family residential	—			15			(11		)
HELOCs	(2		)	—			—
Total residential mortgage	(2		)	15			(11		)
Other consumer	—			—			(2,491		)
Total consumer	$	(2	)	$	15		$	(2,502	)
Total non-PCI impaired loans	$	(35,358	)	$	(9,056	)	$	(22,624	)
OREO	$	(8	)	$	—		$	(1	)
Investments in tax credit and other investments, net	$	(13,023	)	$	—		$	—

104

The following table presents the quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements that are measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique(s)	Unobservable Input(s)	Range of Input(s)	Weighted- Average (1)
December 31, 2019
Non-PCI impaired loans	$	27,841	Discounted cash flows	Discount	4% — 15%	14%
	$	1,014	Fair value of collateral	Discount	8% — 20%	19%
	$	20,824	Fair value of collateral	Contract value	NM	NM
OREO	$	125	Fair value of property	Selling cost	8%	8%
Investments in tax credit and other investments, net	$	3,076	Individual analysis of each investment	Expected future tax benefits and distributions	NM	NM
December 31, 2018
Non-PCI impaired loans	$	16,921	Discounted cash flows	Discount	4% — 7%	6%
	$	2,751	Fair value of collateral	Discount	15% — 50%	21%
	$	11,499	Fair value of collateral	Contract value	NM	NM
	$	1,687	Fair value of property	Selling cost	8%	8%

NM — Not meaningful.

(1) Weighted-average is based on the relative fair value of the respective assets as of December 31, 2019 and 2018.

Disclosures about Fair Value of Financial Instruments

The following tables present the fair value estimates for financial instruments as of December 31, 2019 and 2018, excluding financial instruments recorded at fair value on a recurring basis as they are included in the tables presented elsewhere in this Note. The carrying amounts in the following tables are recorded on the Consolidated Balance Sheet under the indicated captions, except for accrued interest receivable and mortgage servicing rights that are included in Other assets, and accrued interest payable that is included in Accrued expenses and other liabilities. These financial assets and liabilities are measured at amortized cost basis on the Company’s Consolidated Balance Sheet.

($ in thousands)	December 31, 2019
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,261,149	$	3,261,149	$	—	$	—	$	3,261,149
Interest-bearing deposits with banks	$	196,161	$	—	$	196,161	$	—	$	196,161
Resale agreements (1)	$	860,000	$	—	$	856,025	$	—	$	856,025
Restricted equity securities, at cost	$	78,580	$	—	$	78,580	$	—	$	78,580
Loans held-for-sale	$	434	$	—	$	434	$	—	$	434
Loans held-for-investment, net	$	34,420,252	$	—	$	—	$	35,021,300	$	35,021,300
Mortgage servicing rights	$	6,068	$	—	$	—	$	8,199	$	8,199
Accrued interest receivable	$	144,599	$	—	$	144,599	$	—	$	144,599
Financial liabilities:
Demand, checking, savings and money market deposits	$	27,109,951	$	—	$	27,109,951	$	—	$	27,109,951
Time deposits	$	10,214,308	$	—	$	10,208,895	$	—	$	10,208,895
Short-term borrowings	$	28,669	$	—	$	28,669	$	—	$	28,669
FHLB advances	$	745,915	$	—	$	755,371	$	—	$	755,371
Repurchase agreements (1)	$	200,000	$	—	$	232,597	$	—	$	232,597
Long-term debt	$	147,101	$	—	$	152,641	$	—	$	152,641
Accrued interest payable	$	27,246	$	—	$	27,246	$	—	$	27,246

105

($ in thousands)	December 31, 2018
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,001,377	$	3,001,377	$	—	$	—	$	3,001,377
Interest-bearing deposits with banks	$	371,000	$	—	$	371,000	$	—	$	371,000
Resale agreements (1)	$	1,035,000	$	—	$	1,016,724	$	—	$	1,016,724
Restricted equity securities, at cost	$	74,069	$	—	$	74,069	$	—	$	74,069
Loans held-for-sale	$	275	$	—	$	275	$	—	$	275
Loans held-for-investment, net	$	32,073,867	$	—	$	—	$	32,273,157	$	32,273,157
Mortgage servicing rights	$	7,836	$	—	$	—	$	11,427	$	11,427
Accrued interest receivable	$	146,262	$	—	$	146,262	$	—	$	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	$	26,370,562	$	—	$	26,370,562	$	—	$	26,370,562
Time deposits	$	9,069,066	$	—	$	9,084,597	$	—	$	9,084,597
Short-term borrowings	$	57,638	$	—	$	57,638	$	—	$	57,638
FHLB advances	$	326,172	$	—	$	334,793	$	—	$	334,793
Repurchase agreements (1)	$	50,000	$	—	$	87,668	$	—	$	87,668
Long-term debt	$	146,835	$	—	$	152,556	$	—	$	152,556
Accrued interest payable	$	22,893	$	—	$	22,893	$	—	$	22,893

(1) Resale and repurchase agreements are reported net pursuant to ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Out of gross repurchase agreements of $450.0 million, $250.0 million and $400.0 million as of December 31, 2019 and 2018, respectively, were eligible for netting against gross resale agreements.

Note 4 — Securities Purchased under Resale Agreements and Sold under Repurchase Agreements

Gross resale agreements were $1.11 billion and $1.44 billion as of December 31, 2019 and 2018, respectively. The weighted-average yields were 2.65%, 2.63% and 2.19% for the years ended December 31, 2019, 2018 and 2017, respectively.

As of December 31, 2019, the collateral for the repurchase agreements was comprised of U.S. Treasury securities, and U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities. Gross repurchase agreements were $450.0 million as of both December 31, 2019 and 2018. The weighted-average interest rates were 4.74%, 4.46% and 3.48% for the years ended December 31, 2019, 2018 and 2017, respectively. As of December 31, 2019, $150.0 million will mature in 2022 and $300.0 million will mature in 2023.

Balance Sheet Offsetting

The Company’s resale and repurchase agreements are transacted under legally enforceable master repurchase agreements that provide the Company, in the event of default by the counterparty, the right to liquidate securities held and to offset receivables and payables with the same counterparty. The Company nets resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Collateral received includes securities that are not recognized on the Consolidated Balance Sheet. Collateral pledged consists of securities that are not netted on the Consolidated Balance Sheet against the related collateralized liability. Collateral received or pledged in resale and repurchase agreements with other financial institutions may also be sold or re-pledged by the secured party, but is usually delivered to and held by the third-party trustees. The collateral amounts received/pledged are limited for presentation purposes to the related recognized asset/liability balance for each counterparty, and accordingly, do not include excess collateral received/pledged.

106

The following tables present the resale and repurchase agreements included on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,110,000	$	(250,000	)	$	860,000	$	(856,058	)	(1)	$	3,942
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Pledged
Repurchase agreements	$	450,000	$	(250,000	)	$	200,000	$	(200,000	)	(2)	$	—

($ in thousands)	December 31, 2018
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,435,000	$	(400,000	)	$	1,035,000	$	(1,025,066	)	(1)	$	9,934
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral  Pledged
Repurchase agreements	$	450,000	$	(400,000	)	$	50,000	$	(50,000	)	(2)	$	—

(1) Represents the fair value of securities the Company has received under resale agreements, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

(2) Represents the fair value of securities the Company has pledged under repurchase agreements, limited for table presentation purposes to the amount of the recognized liability due to each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

In addition to the amounts included in the tables above, the Company also has balance sheet netting related to derivatives. Refer to Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

107

Note 5 — Securities

The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS investment securities as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	177,215	$	—	$	(793	)	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	584,275		1,377		(4,407		)	581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	599,814		8,551		(4,894		)	603,471
Residential mortgage-backed securities	998,447		6,927		(1,477		)	1,003,897
Municipal securities	101,621		790		(109		)	102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	86,609		1,947		(6		)	88,550
Residential mortgage-backed securities	46,830		3		(285		)	46,548
Corporate debt securities	11,250		12		(113		)	11,149
Foreign bonds	354,481		198		(507		)	354,172
Asset-backed securities	66,106		—		(1,354		)	64,752
CLOs	294,000		—		(9,294		)	284,706
Total AFS investment securities	$	3,320,648	$	19,805	$	(23,239	)	$	3,317,214

($ in thousands)	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	577,561	$	153	$	(12,899	)	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	219,485		382		(2,694		)	217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	420,486		811		(12,694		)	408,603
Residential mortgage-backed securities	957,219		4,026		(14,552		)	946,693
Municipal securities	82,965		87		(1,032		)	82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	25,826		226		—			26,052
Residential mortgage-backed securities	10,109		7		(185		)	9,931
Corporate debt securities	11,250		—		(381		)	10,869
Foreign bonds	489,378		—		(26,330		)	463,048
Asset-backed securities	12,621		22		—			12,643
Total AFS investment securities	$	2,806,900	$	5,714	$	(70,767	)	$	2,741,847

108

Unrealized Losses

The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS investment securities, aggregated by investment category and the length of time that the securities have been in a continuous unrealized loss position, as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	176,422	$	(793	)	$	176,422	$	(793	)
U.S. government agency and U.S. government sponsored enterprise debt securities	310,349		(4,407		)	—		—			310,349		(4,407		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	204,675		(2,346		)	108,314		(2,548		)	312,989		(4,894		)
Residential mortgage-backed securities	325,354		(1,234		)	34,337		(243		)	359,691		(1,477		)
Municipal securities	31,130		(109		)	—		—			31,130		(109		)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	7,914		(6		)	—		—			7,914		(6		)
Residential mortgage-backed securities	42,894		(285		)	—		—			42,894		(285		)
Corporate debt securities	—		—			9,888		(113		)	9,888		(113		)
Foreign bonds	129,074		(407		)	9,900		(100		)	138,974		(507		)
Asset-backed securities	52,565		(902		)	12,187		(452		)	64,752		(1,354		)
CLOs	284,706		(9,294		)	—		—			284,706		(9,294		)
Total AFS investment securities	$	1,388,661	$	(18,990	)	$	351,048	$	(4,249	)	$	1,739,709	$	(23,239	)

($ in thousands)	December 31, 2018
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	516,520	$	(12,899	)	$	516,520	$	(12,899	)
U.S. government agency and U.S. government sponsored enterprise debt securities	22,755		(238		)	159,814		(2,456		)	182,569		(2,694		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	26,886		(245		)	274,666		(12,449		)	301,552		(12,694		)
Residential mortgage-backed securities	75,675		(491		)	653,660		(14,061		)	729,335		(14,552		)
Municipal securities	9,458		(104		)	30,295		(928		)	39,753		(1,032		)
Non-agency mortgage-backed securities:
Residential mortgage-backed securities	3,067		(19		)	3,949		(166		)	7,016		(185		)
Corporate debt securities	10,869		(381		)	—		—			10,869		(381		)
Foreign bonds	14,418		(40		)	448,630		(26,290		)	463,048		(26,330		)
Total AFS investment securities	$	163,128	$	(1,518	)	$	2,087,534	$	(69,249	)	$	2,250,662	$	(70,767	)

Other-Than-Temporary Impairment

For each reporting period, the Company assesses individual securities that are in an unrealized loss position for OTTI.  For a discussion of the factors and criteria the Company uses in analyzing securities for OTTI, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Securities to the Consolidated Financial Statements in this Form 10-K.

109

The unrealized losses were primarily attributable to the movement in the yield curve, in addition to widened liquidity and credit spreads. The issuers of these securities have not, to the Company’s knowledge, established any cause for default on these securities. These securities have fluctuated in value since their purchase dates because of changes in market interest rates. The Company believes that the gross unrealized losses presented in the previous tables are temporary and no credit losses are expected. As a result, the Company expects to recover the entire amortized cost basis of these securities. The Company has the intent to hold these securities through the anticipated recovery period and it is not more-likely-than-not that the Company will have to sell these securities before recovery of their amortized cost. As of December 31, 2019, the Company had 101 AFS investment securities in a gross unrealized loss position with no credit impairment, primarily consisting of three CLOs, 57 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities and 14 U.S. government agency and U.S. government sponsored enterprise debt securities. In comparison, as of December 31, 2018, the Company had 184 AFS investment securities in a gross unrealized loss position with no credit impairment, primarily consisting of 108 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities, 16 foreign bonds and 19 U.S. Treasury securities. There were no OTTI credit losses recognized for the years ended December 31, 2019, 2018 and 2017.

Realized Gains and Losses

The following table presents the proceeds, gross realized gains and losses, and tax expense related to the sales of AFS investment securities for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Proceeds from sales	$	627,110	$	364,270	$	832,844
Gross realized gains	$	3,930	$	2,535	$	8,037
Related tax expense	$	1,162	$	749	$	3,380

Contractual Maturities of Investment Securities

The following table presents the contractual maturities of AFS investment securities as of December 31, 2019:

($ in thousands)	Amortized Cost		Fair Value
Due within one year	$	721,607	$	719,179
Due after one year through five years	395,468		392,891
Due after five years through ten years	143,029		145,901
Due after ten years	2,060,544		2,059,243
Total AFS investment securities	$	3,320,648	$	3,317,214

Actual maturities of mortgage-backed securities can differ from contractual maturities as the borrowers have the right to prepay obligations. In addition, factors such as prepayments and interest rates may affect the yields on the carrying values of mortgage-backed securities.

As of December 31, 2019 and 2018, AFS investment securities with fair value of $479.4 million and $435.8 million, respectively, were primarily pledged to secure public deposits, repurchase agreements and for other purposes required or permitted by law.

Restricted Equity Securities

The following table presents the restricted equity securities included in Other Assets on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
FRB stock	$	58,330	$	56,819
FHLB stock	20,250		17,250
Total restricted equity securities	$	78,580	$	74,069

110

Note 6 — Derivatives

The Company uses derivatives to manage exposure to market risk, primarily interest rate risk and foreign currency risk, and to assist customers with their risk management objectives. The Company’s goal is to manage interest rate sensitivity and volatility so that movements in interest rates are not significant to earnings or capital. The Company also uses foreign exchange contracts to manage the foreign exchange rate risk associated with certain foreign currency-denominated assets and liabilities, as well as the Company’s investment in its China subsidiary, East West Bank (China) Limited. The Company recognizes all derivatives on the Consolidated Balance Sheet at fair value. While the Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship, other derivatives consist of economic hedges. For additional information on the Company’s derivatives and hedging activities, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Derivatives to the Consolidated Financial Statements in this Form 10-K.

The following table presents the total notional amounts and gross fair values of the Company’s derivatives, as well as the balance sheet netting adjustments on an aggregate basis as of December 31, 2019 and 2018. The derivative assets and liabilities are presented on a gross basis prior to the application of bilateral collateral and master netting agreements, but after the variation margin payments with central clearing organizations have been applied as settlement, as applicable. Total derivative assets and liabilities are adjusted to take into consideration the effects of legally enforceable master netting agreements and cash collateral received or paid as of December 31, 2019 and 2018. The resulting net derivative asset and liability fair values are included in Other assets and Accrued expenses and other liabilities, respectively, on the Consolidated Balance Sheet.

($ in thousands)	December 31, 2019									December 31, 2018
	Notional Amount			Fair Value						Notional Amount			Fair Value
				Derivative Assets			Derivative Liabilities						Derivative Assets			Derivative Liabilities
Derivatives designated as hedging instruments:
Fair value hedges:
Interest rate contracts	$	31,026		$	—		$	3,198		$	35,811		$	—		$	5,866
Net investment hedges:
Foreign exchange contracts	86,167			—			1,586			90,245			—			611
Total derivatives designated as hedging instruments	$	117,193		$	—		$	4,784		$	126,056		$	—		$	6,477
Derivatives not designated as hedging instruments:
Interest rate contracts	$	15,489,692		$	192,883		$	124,119		$	11,695,499		$	69,818		$	69,267
Foreign exchange contracts	4,839,661			54,637			47,024			3,407,522			21,624			19,329
Credit contracts	210,678			2			84			119,320			1			164
Equity contracts	—		(1)	1,414			—			—		(1)	1,951			—
Commodity contracts	—		(2)	81,380			80,517			—		(2)	14,422			23,068
Total derivatives not designated as hedging instruments	$	20,540,031		$	330,316		$	251,744		$	15,222,341		$	107,816		$	111,828
Gross derivative assets/liabilities				$	330,316		$	256,528					$	107,816		$	118,305
Less: Master netting agreements				(121,561		)	(121,561		)				(31,569		)	(31,569		)
Less: Cash collateral received/paid				(3,758		)	(38,238		)				(13,577		)	(6,833		)
Net derivative assets/liabilities				$	204,997		$	96,729					$	62,670		$	79,903

(1) The Company held equity contracts in three public companies and 18 private companies as of December 31, 2019. In comparison, the Company held equity contracts in four public companies and 18 private companies as of December 31, 2018.

(2) The notional amount of the Company’s commodity contracts entered with its customers totaled 7,811 thousand barrels of crude oil and 63,773 thousand units of natural gas, measured in million British thermal units (“MMBTUs”) as of December 31, 2019. In comparison, the notional amount of the Company’s commodity contracts entered with its customers totaled 2,507 thousand of crude oil and 14,722 thousand MMBTUs of natural gas as of December 31, 2018. The Company simultaneously entered into the offsetting commodity contracts with mirrored terms with third-party financial institutions.

Derivatives Designated as Hedging Instruments

Fair Value Hedges — The Company is exposed to changes in the fair value of certain certificates of deposit due to changes in the benchmark interest rates. The Company entered into interest rate swaps, which were designated as fair value hedges. The interest rate swaps involve the exchange of variable rate payments over the life of the agreements without the exchange of the underlying notional amounts.

111

The following table presents the net gains (losses) recognized on the Consolidated Statement of Income related to the derivatives designated as fair value hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Gains (losses) recorded in interest expense:
Recognized on interest rate swaps	$	2,655		$	(93	)	$	(2,734	)
Recognized on certificates of deposit	$	(2,536	)	$	278		$	2,271

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of the hedged certificates of deposit as of December 31, 2019 and 2018:

($ in thousands)	Carrying Value (1)						Cumulative Fair Value Adjustment (2)
	December 31,						December 31,
	2019			2018			2019		2018
Certificates of deposit	$	(29,080	)	$	(26,877	)	$	1,604	$	4,141

(1) Represents the full carrying amount of the hedged certificates of deposit.

(2) For liabilities, (increase) decrease to carrying value.

Net Investment Hedges — ASC 830-20, Foreign Currency Matters — Foreign Currency Transactions and ASC 815, Derivatives and Hedging, allow hedging of the foreign currency risk of a net investment in a foreign operation. The Company enters into foreign currency contracts to hedge a portion of its investment in East West Bank (China) Limited, a non-USD functional currency subsidiary in China. The hedging instruments designated as net investment hedges, involve hedging the risk of changes in the USD equivalent value of a designated monetary amount of the Company’s net investment in East West Bank (China) Limited, against the risk of adverse changes in the foreign currency exchange rate of the RMB. The Company may de-designate the net investment hedges when the Company expects the hedge will cease to be highly effective. The notional and fair value amounts of the net investment hedges, made up of foreign exchange forwards, were $86.2 million and $1.6 million liability as of December 31, 2019. In comparison, the notional and fair value amounts of the net investment hedges, made up of foreign exchange swaps, were $90.2 million and a $611 thousand liability, respectively, as of December 31, 2018.

The following table presents the (losses) gains recorded on net investment hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018		2017
(Losses) gains recognized in AOCI	$	(471	)	$	6,072	$	(648	)
(Losses) recognized in Foreign exchange income(1)	$	—		$	—	$	(1,953	)

(1) Represents the losses recorded in the Consolidated Statement of Income related to the ineffective portion of the net investment hedges prior to the adoption of ASU 2017-12, effective January 1, 2018. After the adoption, the fair value gains (losses) are recorded in Foreign Currency Translation Adjustments within AOCI.

112

Derivatives Not Designated as Hedging Instruments

Interest Rate Contracts — The Company enters into interest rate contracts, which include interest rate swaps and options with its customers to allow customers to hedge against the risk of rising interest rates on their variable rate loans. To economically hedge against the interest rate risks in the products offered to its customers, the Company enters into mirrored offsetting interest rate contracts with third-party financial institutions, including central clearing organizations. Beginning in January 2018, the London Clearing House (“LCH”) amended its rulebook to legally characterize variation margin payments made to and received from LCH as settlements of derivatives, and not as collateral against derivatives. Included in the total notional amount of $7.75 billion of interest rates contracts entered into with financial counterparties as of December 31, 2019, was a notional amount of $2.53 billion of interest rates swaps that cleared through LCH. Applying variation margin payments as settlement to LCH cleared derivative transactions resulted in a reduction in derivative asset fair values of $2.9 million and liability fair values of $75.1 million, as of December 31, 2019. In comparison, included in the total notional amount of $5.85 billion of interest rates contracts entered into with financial counterparties as of December 31, 2018, was a notional amount of $1.66 billion of interest rate swaps that cleared through LCH. Applying variation margin payments as settlement to LCH cleared derivative transactions resulted in a reduction in derivative asset fair values of $16.4 million and liability fair values of $16.0 million, as of December 31, 2018.

The following tables present the notional amounts and the gross fair values of interest rate derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	1,003,558	$	—	$	66	Purchased options	$	1,003,558	$	67	$	—
Sold collars and corridors	490,852		1,971		16		Collars and corridors	490,852		17		1,996
Swaps	6,247,667		187,294		6,237		Swaps	6,253,205		3,534		115,804
Total	$	7,742,077	$	189,265	$	6,319	Total	$	7,747,615	$	3,618	$	117,800

($ in thousands)	December 31, 2018
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	931,601	$	—	$	492	Purchased options	$	931,601	$	503	$	—
Sold collars and corridors	429,879		1,121		305		Collars and corridors	429,879		308		1,140
Swaps	4,482,881		41,457		41,545		Swaps	4,489,658		26,429		25,785
Total	$	5,844,361	$	42,578	$	42,342	Total	$	5,851,138	$	27,240	$	26,925

Foreign Exchange Contracts — The Company enters into foreign exchange contracts with its customers, consisting of forwards, spot, swap and option contracts to accommodate the business needs of its customers. For a portion of the foreign exchange contracts entered into with its customers, the Company either entered into offsetting foreign exchange contracts with third-party financial institutions or acquires collateral on a portfolio basis primarily in the form of cash to manage its exposure. The Company also utilizes foreign exchange contracts, which are not designated as hedging instruments to mitigate the economic effect of currency fluctuations on certain foreign currency-denominated on-balance sheet assets and liabilities, primarily for foreign currency-denominated deposits offered to its customers. A majority of the foreign exchange contracts had original maturities of one year or less as of both December 31, 2019 and 2018.

113

The following tables present the notional amounts and the gross fair values of foreign exchange derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	3,581,036	$	45,911	$	40,591	Forwards and spot	$	207,492	$	1,400	$	507
Swaps	6,889		16		84		Swaps	702,391		6,156		4,712
Written options	87,036		127		—		Purchased options	87,036		—		127
Collars	2,244		—		14		Collars	165,537		1,027		989
Total	$	3,677,205	$	46,054	$	40,689	Total	$	1,162,456	$	8,583	$	6,335

($ in thousands)	December 31, 2018
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	2,023,425	$	11,719	$	13,079	Forwards and spot	$	506,342	$	3,407	$	2,285
Swaps	21,108		348		243		Swaps	687,845		5,764		3,336
Written options	537		16		—		Purchased options	537		—		16
Collars	83,864		—		370		Collars	83,864		370		—
Total	$	2,128,934	$	12,083	$	13,692	Total	$	1,278,588	$	9,541	$	5,637

Credit Contracts — The Company may periodically enter into RPA contracts to manage the credit exposure on interest rate contracts associated with syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. Under the RPA, the Company will receive or make a payment if a borrower defaults on the related interest rate contract. The Company manages its credit risk on RPAs by monitoring the creditworthiness of the borrowers and institutional counterparties, which is based on the normal credit review process. The referenced entities of the RPAs were investment grade as of both December 31, 2019 and 2018. The notional amount of the RPAs reflects the Company’s pro-rata share of the derivative instrument. The following table presents the notional amounts and the gross fair values of RPAs sold and purchased outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019						December 31, 2018
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Assets		Liabilities				Assets		Liabilities
RPAs - protection sold	$	199,964	$	—	$	84	$	108,606	$	—	$	164
RPAs - protection purchased	10,714		2		—		10,714		1		—
Total RPAs	$	210,678	$	2	$	84	$	119,320	$	1	$	164

Assuming all underlying borrowers referenced in the interest rate contracts defaulted as of December 31, 2019 and 2018, the exposure from the RPAs with protections sold would be $125 thousand for both 2019 and 2018.  As of December 31, 2019 and 2018, the weighted-average remaining maturities of the outstanding RPAs were 2.2 and 6.6 years, respectively.

Equity Contracts — As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of technology and life sciences companies it provides loans to. Equity warrants grant the Company the right to buy a certain class of the underlying company’s equity at a certain price before expiration. The Company held warrants in three public companies and 18 private companies as of December 31, 2019, and held warrants in four public companies and 18 private companies as of December 31, 2018. The total fair value of the warrants held in both public and private companies was $1.4 million and $2.0 million in assets as of December 31, 2019 and 2018, respectively.

114

Commodity Contracts — Beginning in 2018, the Company entered into energy commodity contracts in the form of swaps and options with its commercial loan customers to allow them to hedge against the risk of fluctuation in energy commodity prices. To economically hedge against the risk of fluctuation in commodity prices in the products offered to its customers, the Company entered into offsetting commodity contracts with third-party financial institutions to manage the exposure with its customers. Beginning in January 2017, the Chicago Mercantile Exchange (“CME”) amended its rulebook to legally characterize variation margin payments made to and received from CME as settlements of derivatives and not as collateral against derivatives. The notional quantities that cleared through CME totaled 1,752 thousand barrels of crude oil and 6,075 thousand MMBTUs of natural gas as of December 31, 2019. Applying variation margin payments as settlement to CME-cleared derivative transactions resulted in a reduction in gross derivative asset fair values of $2.9 million and liability fair values of $1.5 million, respectively, as of December 31, 2019, for a net asset fair value of $986 thousand. In comparison, the notional quantities that cleared through CME totaled 778 thousand barrels of crude oil and 6,290 thousand MMBTUs of natural gas as of December 31, 2018. Applying variation margin payments as settlement to CME-cleared derivative transactions resulted in a reduction in gross derivative asset fair values of $10.4 million and liability fair values of $582 thousand as of December 31, 2018, for a net asset fair value of $622 thousand.

The following table presents the notional amounts and fair values of the commodity derivative positions outstanding as of December 31, 2019 and 2018.

($ and units in thousands)	December 31, 2019
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	36	Barrels	$	—	$	30	Purchased options	36	Barrels	$	29	$	—
Collars	3,174	Barrels	2,673		538		Collars	3,630	Barrels	677		2,815
Swaps	4,601	Barrels	6,949		5,531		Swaps	4,721	Barrels	4,516		5,215
Total	7,811		$	9,622	$	6,099	Total	8,387		$	5,222	$	8,030
Natural gas:							Natural gas:
Written options	540	MMBTUs	$	—	$	22	Purchased options	530	MMBTUs	$	21	$	—
Collars	14,277	MMBTUs	186		522		Collars	14,517	MMBTUs	471		150
Swaps	48,956	MMBTUs	30,257		35,497		Swaps	48,779	MMBTUs	35,601		30,197
Total	63,773		$	30,443	$	36,041	Total	63,826		$	36,093	$	30,347
Total			$	40,065	$	42,140	Total			$	41,315	$	38,377

($ and units in thousands)	December 31, 2018
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	524	Barrels	$	—	$	2,628	Purchased options	524	Barrels	$	2,251	$	—
Collars	872	Barrels	—		3,772		Collars	872	Barrels	3,225		—
Swaps	1,111	Barrels	—		14,278		Swaps	1,111	Barrels	5,799		—
Total	2,507		$	—	$	20,678	Total	2,507		$	11,275	$	—
Natural gas:							Natural gas:
Collars	3,063	MMBTUs	$	78	$	152	Collars	3,063	MMBTUs	$	151	$	64
Swaps	11,659	MMBTUs	1,049		1,857		Swaps	11,659	MMBTUs	1,869		317
Total	14,722		$	1,127	$	2,009	Total	14,722		$	2,020	$	381
Total			$	1,127	$	22,687	Total			$	13,295	$	381

115

The following table presents the net gains (losses) recognized on the Company’s Consolidated Statement of Income related to derivatives not designated as hedging instruments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Classification in Consolidated Statement of Income	Year Ended December 31,
		2019			2018			2017
Derivatives not designated as hedging instruments:
Interest rate contracts	Interest rate contracts and other derivative income	$	(2,126	)	$	280		$	(1,772	)
Foreign exchange contracts	Foreign exchange income	22,264			16,784			22,076
Credit contracts	Interest rate contracts and other derivative income	59			(156		)	(7		)
Equity contracts	Lending fees	678			512			1,672
Commodity contracts	Interest rate contracts and other derivative income	(67		)	(11		)	—
Net gains		$	20,808		$	17,409		$	21,969

Credit-Risk-Related Contingent Features — Certain over-the-counter derivative contracts of the Company contain early termination provisions that may require the Company to settle any outstanding balances upon the occurrence of a specified credit-risk-related event. These events, which are defined by the existing derivative contracts, primarily relate to a downgrade in the credit rating of East West Bank to below investment grade. As of December 31, 2019, the net fair value of all derivative instruments with such credit-risk-related contingent features was a $56.4 million net liability position, comprising $14.4 million in derivative assets and $70.8 million in derivative liabilities, with associated posted collateral of $56.4 million. As of December 31, 2018, the net fair value of all derivative instruments with such credit-risk-related contingent features was an $11.4 million net liability position, comprising $2.8 million derivative assets and $14.2 million in derivative liabilities, with associated posted collateral of $9.4 million. In the event that the credit rating of East West Bank had been downgraded to below investment grade, additional minimal collateral would have been required to be posted as of December 31, 2019 and 2018.

Offsetting of Derivatives

The following tables present the gross derivative fair values, the balance sheet netting adjustments and the resulting net fair values recorded on the consolidated balance sheet, as well as the cash and non-cash collateral associated with master netting arrangements. The gross amounts of derivative assets and liabilities are presented after the application of variation margin payments as settlements with centrally cleared organizations, where applicable. The collateral amounts in following tables are limited to the outstanding balances of the related asset or liability, after the application of netting; therefore instances of overcollateralization are not shown:

($ in thousands)	As of December 31, 2019
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	330,316	$	(121,561	)	$	(3,758	)	$	204,997	$	—		$	204,997
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	256,528	$	(121,561	)	$	(38,238	)	$	96,729	$	(79,619	)	$	17,110

116

($ in thousands)	As of December 31, 2018
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	107,816	$	(31,569	)	$	(13,577	)	$	62,670	$	(13,975	)	$	48,695
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	118,305	$	(31,569	)	$	(6,833	)	$	79,903	$	(11,231	)	$	68,672

(1) Gross amounts recognized for derivative assets include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $328.7 million and $105.9 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $1.6 million and $2.0 million, respectively, as of December 31, 2019 and 2018.

(2) Gross amounts recognized for derivative liabilities include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $256.5 million and $118.2 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $20 thousand and $102 thousand, respectively, as of December 31, 2019 and 2018.

(3) Gross cash collateral received under master netting arrangements or similar agreements were $3.8 million and $15.8 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral received,$3.8 million and $13.6 million were used to offset against derivative assets, respectively, as of December 31, 2019 and 2018.

(4) Gross cash collateral pledged under master netting arrangements or similar agreements were $43.0 million and $8.4 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral pledged, $38.2 million and $6.8 million were used to offset against derivative liabilities, respectively, as of December 31, 2019 and 2018.

(5) Represents the fair value of security collateral received and pledged limited to derivative assets and liabilities that are subject to enforceable master netting arrangements or similar agreements. GAAP does not permit the netting of non-cash collateral on the consolidated balance sheet but requires disclosure of such amounts.

In addition to the amounts included in the tables above, the Company also has balance sheet netting related to the resale and repurchase agreements. Refer to Note 4 — Securities Purchased under Resale Agreements and Sold under Repurchase Agreements to the Consolidated Financial Statements for additional information. Refer to Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for fair value measurement disclosures on derivatives.

Note 7 — Loans Receivable and Allowance for Credit Losses

The Company’s held-for-investment loan portfolio includes originated and purchased loans. Originated and purchased loans with no evidence of credit deterioration at their acquisition date are referred to collectively as non-PCI loans. PCI loans are loans acquired with evidence of credit deterioration since their origination and for which it is probable at the acquisition date that the Company would be unable to collect all contractually required payments. PCI loans are accounted for under ASC Subtopic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company has elected to account for PCI loans on a pool level basis under ASC 310-30 at the time of acquisition.

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The following table presents the composition of the Company’s non-PCI and PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019								December 31, 2018
	Non-PCI Loans (1)			PCI     Loans (2)		Total (1)(2)			Non-PCI Loans (1)			PCI Loans (2)			Total (1)(2)
Commercial:
C&I	$	12,149,121		$	1,810	$	12,150,931		$	12,054,818		$	2,152		$	12,056,970
CRE:
CRE	10,165,247			113,201		10,278,448			9,097,165			163,034			9,260,199
Multifamily residential	2,834,212			22,162		2,856,374			2,433,924			36,744			2,470,668
Construction and land	628,459			40		628,499			538,752			42			538,794
Total CRE	13,627,918			135,403		13,763,321			12,069,841			199,820			12,269,661
Total commercial	25,777,039			137,213		25,914,252			24,124,659			201,972			24,326,631
Consumer:
Residential mortgage:
Single-family residential	7,028,979			79,611		7,108,590			5,939,258			97,196			6,036,454
HELOCs	1,466,736			6,047		1,472,783			1,681,979			8,855			1,690,834
Total residential mortgage	8,495,715			85,658		8,581,373			7,621,237			106,051			7,727,288
Other consumer	282,914			—		282,914			331,270			—			331,270
Total consumer	8,778,629			85,658		8,864,287			7,952,507			106,051			8,058,558
Total loans held-for-investment	$	34,555,668		$	222,871	$	34,778,539		$	32,077,166		$	308,023		$	32,385,189
Allowance for loan losses	(358,287		)	—		(358,287		)	(311,300		)	(22		)	(311,322		)
Loans held-for-investment, net	$	34,197,381		$	222,871	$	34,420,252		$	31,765,866		$	308,001		$	32,073,867

(1) Includes net deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts of $(43.2) million and $(48.9) million as of December 31, 2019 and 2018, respectively.

(2) Includes ASC 310-30 discount of $14.3 million and $22.2 million as of December 31, 2019 and 2018, respectively.

The commercial portfolio includes C&I, CRE, multifamily residential, and construction and land loans. The consumer portfolio includes single-family residential, HELOC and other consumer loans.

The C&I loan portfolio, which is comprised of commercial business and trade finance loans, provides financing to businesses in a wide spectrum of industries. The CRE loan portfolio consists of income producing real estate loans that are either owner occupied, or non-owner occupied where 50% or more of the debt service for the loan is primarily provided by unaffiliated rental income from a third party. The multifamily residential loan portfolio is largely comprised of loans secured by residential properties with five or more units in the Bank’s primary lending areas. Construction and land loans mainly provide construction financing for hotels, offices and industrial projects and the purchase of land.

In the consumer portfolio, the Company offers single-family residential loans and HELOCs through a variety of mortgage loan programs. A substantial number of these loans are originated through a reduced documentation loan program, in which a substantial down payment is required, resulting in a low loan-to-value ratio at origination, typically 60% or less. The Company is in a first lien position for many of these reduced documentation single-family residential loans and HELOCs. These loans have historically experienced low delinquency and default rates. Other consumer loans are mainly comprised of insurance premium financing loans.

As of December 31, 2019 and 2018, loans of $22.43 billion and $20.59 billion, respectively, were pledged to secure borrowings and provide additional borrowing capacity from the FRB and the FHLB.

Credit Quality Indicators

All loans are subject to the Company’s credit review and monitoring. For the commercial portfolio, loans are risk rated based on an analysis of the current state of the borrower’s payment performance or delinquency, repayment sources, financial and liquidity factors that include industry and geographic considerations. For the majority of the consumer portfolio, payment performance or delinquency is the driving indicator for the risk ratings.

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For the Company’s internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 5 are assigned an internal risk rating of “Pass”, with loans risk-rated 1 being fully secured by cash or U.S. government securities. Pass loans have sufficient sources of repayment in order to repay the loan in full in accordance with all terms and conditions. Loans risk-rated 6 are loans that have potential weaknesses that warrant closer attention by management and are assigned an internal risk rating of “Special Mention”. Loans risk-rated 7 and 8 are loans that have well-defined weaknesses that may jeopardize the full and timely repayment of the loan and are assigned an internal risk rating of “Substandard”. Loans risk-rated 9 are loans that have insufficient sources of repayment and a high probability of loss and are assigned an internal risk rating of “Doubtful”. Loans risk-rated 10 are loans that are uncollectable and of such little value that they are no longer considered bankable assets and are assigned an internal risk rating of “Loss”. These internal risk ratings are reviewed routinely and adjusted based on changes in the borrowers’ financial status and the loans’ collectability.

The following tables present the credit risk ratings for non-PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,423,094	$	406,543	$	302,509	$	16,975	$	12,149,121
CRE:
CRE	10,003,749		83,683		77,815		—		10,165,247
Multifamily residential	2,806,475		20,406		7,331		—		2,834,212
Construction and land	603,447		—		25,012		—		628,459
Total CRE	13,413,671		104,089		110,158		—		13,627,918
Total commercial	24,836,765		510,632		412,667		16,975		25,777,039
Consumer:
Residential mortgage:
Single-family residential	7,012,522		2,278		14,179		—		7,028,979
HELOCs	1,453,207		2,787		10,742		—		1,466,736
Total residential mortgage	8,465,729		5,065		24,921		—		8,495,715
Other consumer	280,392		5		2,517		—		282,914
Total consumer	8,746,121		5,070		27,438		—		8,778,629
Total	$	33,582,886	$	515,702	$	440,105	$	16,975	$	34,555,668

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,644,470	$	260,089	$	139,844	$	10,415	$	12,054,818
CRE:
CRE	8,957,228		49,705		90,232		—		9,097,165
Multifamily residential	2,402,991		20,551		10,382		—		2,433,924
Construction and land	485,217		19,838		33,697		—		538,752
Total CRE	11,845,436		90,094		134,311		—		12,069,841
Total commercial	23,489,906		350,183		274,155		10,415		24,124,659
Consumer:
Residential mortgage:
Single-family residential	5,925,584		6,376		7,298		—		5,939,258
HELOCs	1,669,300		1,576		11,103		—		1,681,979
Total residential mortgage	7,594,884		7,952		18,401		—		7,621,237
Other consumer	328,767		1		2,502		—		331,270
Total consumer	7,923,651		7,953		20,903		—		7,952,507
Total	$	31,413,557	$	358,136	$	295,058	$	10,415	$	32,077,166

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The following tables present the credit risk ratings for PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,810	$	—	$	—	$	—	$	1,810
CRE:
CRE	102,257		—		10,944		—		113,201
Multifamily residential	22,162		—		—		—		22,162
Construction and land	40		—		—		—		40
Total CRE	124,459		—		10,944		—		135,403
Total commercial	126,269		—		10,944		—		137,213
Consumer:
Residential mortgage:
Single-family residential	79,517		—		94		—		79,611
HELOCs	5,849		—		198		—		6,047
Total residential mortgage	85,366		—		292		—		85,658
Total consumer	85,366		—		292		—		85,658
Total (1)	$	211,635	$	—	$	11,236	$	—	$	222,871

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,996	$	—	$	156	$	—	$	2,152
CRE:
CRE	143,839		—		19,195		—		163,034
Multifamily residential	35,221		—		1,523		—		36,744
Construction and land	42		—		—		—		42
Total CRE	179,102		—		20,718		—		199,820
Total commercial	181,098		—		20,874		—		201,972
Consumer:
Residential mortgage:
Single-family residential	95,789		1,021		386		—		97,196
HELOCs	8,314		256		285		—		8,855
Total residential mortgage	104,103		1,277		671		—		106,051
Total consumer	104,103		1,277		671		—		106,051
Total (1)	$	285,201	$	1,277	$	21,545	$	—	$	308,023

(1) Loans net of ASC 310-30 discount.

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Nonaccrual and Past Due Loans

Non-PCI loans that are 90 or more days past due are generally placed on nonaccrual status, unless the loan is well-collateralized or guaranteed by government agencies, and in the process of collection. Non-PCI loans that are less than 90 days past due but have identified deficiencies, such as when the full collection of principal or interest becomes uncertain, are also placed on nonaccrual status. The following tables present the aging analysis on non-PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	31,121	$	17,034	$	48,155	$	31,084	$	43,751	$	74,835	$	12,026,131	$	12,149,121
CRE:
CRE	22,830		1,977		24,807		540		15,901		16,441		10,123,999		10,165,247
Multifamily residential	198		531		729		534		285		819		2,832,664		2,834,212
Construction and land	—		—		—		—		—		—		628,459		628,459
Total CRE	23,028		2,508		25,536		1,074		16,186		17,260		13,585,122		13,627,918
Total commercial	54,149		19,542		73,691		32,158		59,937		92,095		25,611,253		25,777,039
Consumer:
Residential mortgage:
Single-family  residential	15,443		5,074		20,517		1,964		12,901		14,865		6,993,597		7,028,979
HELOCs	4,273		2,791		7,064		1,448		9,294		10,742		1,448,930		1,466,736
Total residential  mortgage	19,716		7,865		27,581		3,412		22,195		25,607		8,442,527		8,495,715
Other consumer	6		5		11		—		2,517		2,517		280,386		282,914
Total consumer	19,722		7,870		27,592		3,412		24,712		28,124		8,722,913		8,778,629
Total	$	73,871	$	27,412	$	101,283	$	35,570	$	84,649	$	120,219	$	34,334,166	$	34,555,668

($ in thousands)	December 31, 2018
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	21,032	$	19,170	$	40,202	$	17,097	$	26,743	$	43,840	$	11,970,776	$	12,054,818
CRE:
CRE	7,740		—		7,740		3,704		20,514		24,218		9,065,207		9,097,165
Multifamily residential	4,174		—		4,174		1,067		193		1,260		2,428,490		2,433,924
Construction and land	207		—		207		—		—		—		538,545		538,752
Total CRE	12,121		—		12,121		4,771		20,707		25,478		12,032,242		12,069,841
Total commercial	33,153		19,170		52,323		21,868		47,450		69,318		24,003,018		24,124,659
Consumer:
Residential mortgage:
Single-family  residential	14,645		7,850		22,495		509		4,750		5,259		5,911,504		5,939,258
HELOCs	2,573		1,816		4,389		1,423		7,191		8,614		1,668,976		1,681,979
Total residential  mortgage	17,218		9,666		26,884		1,932		11,941		13,873		7,580,480		7,621,237
Other consumer	11		12		23		—		2,502		2,502		328,745		331,270
Total consumer	17,229		9,678		26,907		1,932		14,443		16,375		7,909,225		7,952,507
Total	$	50,382	$	28,848	$	79,230	$	23,800	$	61,893	$	85,693	$	31,912,243	$	32,077,166

For information on the policy for recording payments received and resuming accrual of interest on non-PCI loans that are placed on nonaccrual status, see Note 1 — Summary of Significant Accounting Policies — Loans Held-for-Investment to the Consolidated Financial Statements in this Form 10-K.

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PCI loans are excluded from the above aging analysis tables as the Company has elected to account for these loans on a pool level basis under ASC 310-30 at the time of acquisition. Refer to the discussion on PCI loans within this note for additional details on interest income recognition. As of December 31, 2019 and 2018, PCI loans on nonaccrual status totaled $297 thousand and $4.0 million, respectively.

Loans in Process of Foreclosure

The Company commences the foreclosure process on consumer mortgage loans when a borrower becomes 120 days delinquent in accordance with Consumer Finance Protection Bureau Guidelines. As of December 31, 2019 and 2018, consumer mortgage loans of $7.2 million and $3.0 million, respectively, were secured by residential real estate properties, for which formal foreclosure proceedings were in process in accordance with local requirements of the applicable jurisdictions. As of both December 31, 2019 and 2018, no foreclosed residential real estate property was included in total net OREO of $125 thousand and $133 thousand, respectively.

Troubled Debt Restructurings

TDRs are individually evaluated and the type of restructuring is selected based on the loan type and the circumstances of the borrower’s financial difficulty. A TDR is a modification of the terms of a loan when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that it would not have otherwise considered.

The following tables present the additions to non-PCI TDRs for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2019
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	95,742	$	71,332	$	8,004
CRE:
Construction and land	1	19,696		19,691		—
Total CRE	1	19,696		19,691		—
Total commercial	9	$	115,438	$	91,023	$	8,004
Consumer:
Residential mortgage:
Single-family residential	2	$	1,123	$	1,098	$	2
HELOCs	2	539		528		—
Total residential mortgage	4	1,662		1,626		2
Total consumer	4	$	1,662	$	1,626	$	2

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($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2018
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	11,366	$	9,520	$	699
CRE:
CRE	1	750		752		—
Total CRE	1	750		752		—
Total commercial	9	$	12,116	$	10,272	$	699
Consumer:
Residential mortgage:
Single-family residential	2	$	405	$	391	$	(28	)
HELOCs	2	1,546		1,418		—
Total residential mortgage	4	1,951		1,809		(28		)
Total consumer	4	$	1,951	$	1,809	$	(28	)

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2017
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	16	$	43,884	$	37,900	$	11,520
CRE:
CRE	4	2,675		2,627		157
Multifamily residential	1	3,655		2,969		—
Total CRE	5	6,330		5,596		157
Total commercial	21	$	50,214	$	43,496	$	11,677
Consumer:
Residential mortgage:
HELOCs	1	$	152	$	155	$	—
Total residential mortgage	1	152		155		—
Total consumer	1	$	152	$	155	$	—

(1) Includes subsequent payments after modification and reflects the balance as of December 31, 2019, 2018 and 2017.

(2) The financial impact includes charge-offs and specific reserves recorded since the modification date.

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The following tables present the non-PCI TDR modifications for the years ended December 31, 2019, 2018 and 2017 by modification type:

($ in thousands)	Modification Type During the Year Ended December 31, 2019
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	31,611	$	—	$	—	$	39,721	$	71,332
CRE:
Construction and land	—		—		19,691		—		19,691
Total CRE	—		—		19,691		—		19,691
Total commercial	31,611		—		19,691		39,721		91,023
Consumer:
Residential mortgage:
Single-family residential	—		1,098		—		—		1,098
HELOCs	—		397		—		131		528
Total residential mortgage	—		1,495		—		131		1,626
Total consumer	—		1,495		—		131		1,626
Total	$	31,611	$	1,495	$	19,691	$	39,852	$	92,649

($ in thousands)	Modification Type During the Year Ended December 31, 2018
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	5,472	$	—	$	—	$	4,048	$	9,520
CRE:
CRE	—		—		752		—		752
Total CRE	—		—		752		—		752
Total commercial	5,472		—		752		4,048		10,272
Consumer:
Residential mortgage:
Single-family residential	66		—		—		325		391
HELOCs	1,353		—		—		65		1,418
Total residential mortgage	1,419		—		—		390		1,809
Total consumer	1,419		—		—		390		1,809
Total	$	6,891	$	—	$	752	$	4,438	$	12,081

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($ in thousands)	Modification Type During the Year Ended December 31, 2017
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	13,568	$	7,848	$	—	$	16,484	$	37,900
CRE:
CRE	2,627		—		—		—		2,627
Multifamily residential	2,969		—		—		—		2,969
Total CRE	5,596		—		—		—		5,596
Total commercial	19,164		7,848		—		16,484		43,496
Consumer:
Residential mortgage:
HELOCs	—		155		—		—		155
Total residential mortgage	—		155		—		—		155
Total consumer	—		155		—		—		155
Total	$	19,164	$	8,003	$	—	$	16,484	$	43,651

(1) Includes forbearance payments, term extensions and principal deferments that modify the terms of the loan from principal and interest payments to interest payments only.

(2) Includes principal and interest deferments or reductions.

(3) Includes primarily funding to secure additional collateral and provides liquidity to collateral-dependent C&I loans.

Subsequent to restructuring, if a TDR that becomes delinquent, generally beyond 90 days past due, it is considered to be in default. TDRs are individually evaluated for impairment under the specific reserve methodology, subsequent defaults do not generally have a significant additional impact on the allowance for loan losses. The following table presents information on loans for which a subsequent default occurred during the years ended December 31, 2019, 2018 and 2017, that had been modified as TDR within 12 months or less of its default, and were still in default at the respective period end:

($ in thousands)	Loans Modified as TDRs that Subsequently Defaulted During the Year Ended December 31,
	2019			2018			2017
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
Commercial:
C&I	3	$	13,112	4	$	1,890	3	$	8,659
CRE:
CRE	—	$	—	1	$	186	—	$	—
Total CRE	—	$	—	1	$	186	—	$	—
Consumer:
Residential mortgage:
HELOCs	—	$	—	1	$	150	—	$	—
Total residential mortgage	—	$	—	1	$	150	—	$	—

The amount of additional funds committed to lend to borrowers whose terms have been modified as TDRs was $2.2 million and $3.9 million as of December 31, 2019 and 2018, respectively.

125

Impaired Loans

The following tables present information on non-PCI impaired loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	174,656	$	73,956	$	40,086	$	114,042	$	2,881
CRE:
CRE	27,601		20,098		1,520		21,618		97
Multifamily residential	4,965		1,371		3,093		4,464		55
Construction and land	19,696		19,691		—		19,691		—
Total CRE	52,262		41,160		4,613		45,773		152
Total commercial	226,918		115,116		44,699		159,815		3,033
Consumer:
Residential mortgage:
Single-family residential	23,626		8,507		13,704		22,211		35
HELOCs	13,711		6,125		7,449		13,574		8
Total residential mortgage	37,337		14,632		21,153		35,785		43
Other consumer	2,517		—		2,517		2,517		2,517
Total consumer	39,854		14,632		23,670		38,302		2,560
Total non-PCI impaired loans	$	266,772	$	129,748	$	68,369	$	198,117	$	5,593

($ in thousands)	December 31, 2018
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	82,963	$	48,479	$	8,609	$	57,088	$	1,219
CRE:
CRE	36,426		28,285		2,067		30,352		208
Multifamily residential	6,031		2,949		2,611		5,560		75
Total CRE	42,457		31,234		4,678		35,912		283
Total commercial	125,420		79,713		13,287		93,000		1,502
Consumer:
Residential mortgage:
Single-family residential	14,670		2,552		10,908		13,460		34
HELOCs	10,035		5,547		4,409		9,956		5
Total residential mortgage	24,705		8,099		15,317		23,416		39
Other consumer	2,502		—		2,502		2,502		2,491
Total consumer	27,207		8,099		17,819		25,918		2,530
Total non-PCI impaired loans	$	152,627	$	87,812	$	31,106	$	118,918	$	4,032

126

The following table presents the average recorded investment and interest income recognized on non-PCI impaired loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019				2018				2017
	Average Recorded Investment		Recognized Interest    Income (1)		Average Recorded Investment		Recognized Interest Income (1)		Average Recorded Investment		Recognized Interest    Income (1)
Commercial:
C&I	$	248,619	$	2,932	$	143,430	$	1,046	$	110,662	$	1,517
CRE:
CRE	33,046		464		35,049		491		36,003		578
Multifamily residential	6,116		228		11,742		249		11,455		422
Construction and land	19,691		68		3,973		—		4,382		—
Total CRE	58,853		760		50,764		740		51,840		1,000
Total commercial	307,472		3,692		194,194		1,786		162,502		2,517
Consumer:
Residential mortgage:
Single-family residential	37,315		496		22,350		474		14,994		417
HELOCs	22,851		130		14,134		70		5,494		55
Total residential mortgage	60,166		626		36,484		544		20,488		472
Other consumer	2,552		—		2,502		—		2,142		—
Total consumer	62,718		626		38,986		544		22,630		472
Total non-PCI impaired loans	$	370,190	$	4,318	$	233,180	$	2,330	$	185,132	$	2,989

(1) Includes interest income recognized on accruing non-PCI TDRs. Interest payments received on nonaccrual non-PCI loans are reflected as a reduction to principal, not as interest income.

For information on the policy and factors considered for impaired loans, see Note 1 — Summary of Significant Accounting Policies — Impaired Loans to the Consolidated Financial Statements.

127

Allowance for Credit Losses

The following table presents a summary of activities in the allowance for loan losses by loan type for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI Loans
Allowance for non-PCI loans, beginning of period	$	311,300		$	287,070		$	260,402
Provision for loan losses on non-PCI loans	100,115			65,043			49,129
Gross charge-offs:
Commercial:
C&I	(73,985		)	(59,244		)	(38,118		)
CRE:
CRE	(1,021		)	—			—
Multifamily residential	—			—			(635		)
Construction and land	—			—			(149		)
Total CRE	(1,021		)	—			(784		)
Consumer:
Residential mortgage:
Single-family residential	(11		)	(1		)	(1		)
HELOCs	—			—			(55		)
Total residential mortgage	(11		)	(1		)	(56		)
Other consumer	(50		)	(188		)	(17		)
Total gross charge-offs	(75,067		)	(59,433		)	(38,975		)
Gross recoveries:
Commercial:
C&I	14,501			10,417			11,371
CRE:
CRE	5,209			5,194			2,111
Multifamily residential	1,856			1,757			1,357
Construction and land	536			740			259
Total CRE	7,601			7,691			3,727
Consumer:
Residential mortgage:
Single-family residential	136			1,214			546
HELOCs	7			38			24
Total residential mortgage	143			1,252			570
Other consumer	19			3			152
Total gross recoveries	22,264			19,363			15,820
Net charge-offs	(52,803		)	(40,070		)	(23,155		)
Foreign currency translation adjustments	(325		)	(743		)	694
Allowance for non-PCI loans, end of period	358,287			311,300			287,070
PCI Loans
Allowance for PCI loans, beginning of period	22			58			118
Reversal of loan losses on PCI loans	(22		)	(36		)	(60		)
Allowance for PCI loans, end of period	—			22			58
Allowance for loan losses	$	358,287		$	311,322		$	287,128

For further information on accounting policies and the methodologies used to estimate the allowance for credit losses and loan charge-offs, see Note 1 — Summary of Significant Accounting Policies — Allowance for Credit Losses to the Consolidated Financial Statements in this Form 10-K.

128

The following table presents a summary of activities in the allowance for unfunded credit commitments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Allowance for unfunded credit commitments, beginning of period	$	12,566		$	13,318		$	16,121
Reversal of unfunded credit commitments	(1,408		)	(752		)	(2,803		)
Allowance for unfunded credit commitments, end of period	$	11,158		$	12,566		$	13,318

The allowance for unfunded credit commitments is maintained at a level, which management believes to be sufficient to absorb estimated probable losses related to unfunded credit facilities. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. See Note 15 — Commitments, Contingencies and Related Party Transactions to the Consolidated Financial Statements in this Form 10-K for additional information related to unfunded credit reserves.

The following tables present the Company’s allowance for loan losses and recorded investments by loan type and impairment methodology as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	2,881	$	97	$	55	$	—	$	35	$	8	$	2,517	$	5,593
Collectively evaluated for impairment	235,495		40,412		22,771		19,404		28,492		5,257		863		352,694
Acquired with deteriorated credit quality	—		—		—		—		—		—		—		—
Total	$	238,376	$	40,509	$	22,826	$	19,404	$	28,527	$	5,265	$	3,380	$	358,287
Recorded investment in loans
Individually evaluated for impairment	$	114,042	$	21,618	$	4,464	$	19,691	$	22,211	$	13,574	$	2,517	$	198,117
Collectively evaluated for impairment	12,035,079		10,143,629		2,829,748		608,768		7,006,768		1,453,162		280,397		34,357,551
Acquired with deteriorated credit quality (1)	1,810		113,201		22,162		40		79,611		6,047		—		222,871
Total (1)	$	12,150,931	$	10,278,448	$	2,856,374	$	628,499	$	7,108,590	$	1,472,783	$	282,914	$	34,778,539

129

($ in thousands)	December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	1,219	$	208	$	75	$	—	$	34	$	5	$	2,491	$	4,032
Collectively evaluated for impairment	187,898		40,436		19,810		20,290		31,306		5,769		1,759		307,268
Acquired with deteriorated credit quality	—		22		—		—		—		—		—		22
Total	$	189,117	$	40,666	$	19,885	$	20,290	$	31,340	$	5,774	$	4,250	$	311,322
Recorded investment in loans
Individually evaluated for impairment	$	57,088	$	30,352	$	5,560	$	—	$	13,460	$	9,956	$	2,502	$	118,918
Collectively evaluated for impairment	11,997,730		9,066,813		2,428,364		538,752		5,925,798		1,672,023		328,768		31,958,248
Acquired with deteriorated credit quality (1)	2,152		163,034		36,744		42		97,196		8,855		—		308,023
Total (1)	$	12,056,970	$	9,260,199	$	2,470,668	$	538,794	$	6,036,454	$	1,690,834	$	331,270	$	32,385,189

(1) Loans net of ASC 310-30 discount.

Purchased Credit-Impaired Loans

At the date of acquisition, PCI loans are pooled and accounted for at fair value, which represents the discounted value of the expected cash flows of the loan portfolio. A pool is accounted for as a single asset with a single interest rate, cumulative loss rate and cash flows expectation. The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions as to cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. The amount of expected cash flows over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. Projected loss rates and prepayment speeds affect the estimated life of PCI loans, which may change the amount of interest income, and possibly principal, expected to be collected. The excess of total contractual cash flows over the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the “nonaccretable difference.”

The following table presents the changes in accretable yield on PCI loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Accretable yield for PCI loans, beginning of period	$	74,870		$	101,977		$	136,247
Accretion	(24,220		)	(34,662		)	(42,487		)
Changes in expected cash flows	(140		)	7,555			8,217
Accretable yield for PCI loans, end of period	$	50,510		$	74,870		$	101,977

Loans Held-for-Sale

At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future,” subject to periodic reviews under the Company’s evaluation processes, including asset/liability and credit risk management. When the Company subsequently changes its intent to hold certain loans, the loans are transferred from held-for-investment to held-for-sale at the lower of cost or fair value. As of December 31, 2019 and 2018, loans held-for-sale of $434 thousand and $275 thousand, respectively, consisted of single-family residential loans.

130

Loan Purchases, Transfers and Sales

The Company purchases and sells loans in the secondary market in the ordinary course of business. From time to time, purchased loans may be transferred from held-for-investment to held-for-sale, and write-downs to allowance for loan losses are recorded, when appropriate. The following tables provide information about the carrying value of loans purchased for the held-for-investment portfolio, loans sold and loans transferred from held-for-investment to held-for-sale at lower of cost or fair value during the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	245,002	$	39,062	$	—	$	1,573	$	—	$	—	$	—	$	285,637
Sales (2)(3)(4)	$	245,791	$	39,062	$	—	$	1,573	$	10,410	$	—	$	—	$	296,836
Purchases (5)	$	397,615	$	—	$	8,988	$	—	$	117,227	$	—	$	—	$	523,830

($ in thousands)	Year Ended December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	404,321	$	62,291	$	—	$	—	$	14,981	$	—	$	—	$	481,593
Loans transferred from held-for-sale to held-for-investment	$	2,306	$	—	$	—	$	—	$	—	$	—	$	—	$	2,306
Sales (2)(3)(4)	$	413,844	$	62,291	$	—	$	—	$	34,966	$	—	$	—	$	511,101
Purchases (5)	$	525,767	$	—	$	7,389	$	—	$	63,781	$	—	$	—	$	596,937

($ in thousands)	Year Ended December 31, 2017
	Commercial								Consumer						Total
			CRE						Residential mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	476,644	$	52,217	$	531	$	1,609	$	249	$	—	$	3,706	$	534,956
Loans of DCB branches transferred from held-for-investment to held-for-sale (included in Branch assets held-for-sale) (1)	$	17,590	$	36,783	$	12,448	$	241	$	6,416	$	4,309	$	345	$	78,132
Sales (2)(3)(4)	$	476,644	$	52,217	$	531	$	1,609	$	21,058	$	—	$	25,905	$	577,964
Purchases (5)	$	503,359	$	—	$	2,311	$	—	$	29,060	$	—	$	—	$	534,730

(1) The Company recorded $789 thousand, $14.6 million and $473 thousand in write-downs to the allowance for loan losses related to loans transferred from held-for-investment to held-for-sale for the years ended December 31, 2019, 2018 and 2017, respectively.

(2) Includes originated loans sold of $230.3 million, $309.7 million and $178.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. Originated loans sold were primarily comprised of C&I loans for the years ended December 31, 2019 and 2018; and C&I, CRE and single-family residential loans for the year ended December 31, 2017.

(3) Includes purchased loans sold in the secondary market of $66.5 million, $201.4 million and $399.8 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(4) Net gains on sales of loans were $4.0 million, $6.6 million and $8.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(5) C&I loan purchases for each of the yeas ended December 31, 2019, 2018 and 2017 were comprised of broadly syndicated C&I term loans.

131

Note 8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities

The Community Reinvestment Act (“CRA”) encourages banks to meet the credit needs of their communities for housing and other purposes, particularly in low or moderate income neighborhoods. The Company invests in certain affordable housing projects in the form of ownership interests in limited partnerships or limited liability companies that qualify for CRA and tax credits. These entities are formed to develop and operate apartment complexes designed as high-quality affordable housing for lower income tenants throughout the U.S. To fully utilize the available tax credits, each of these entities must meet the regulatory affordable housing requirements for a minimum 15-year compliance period. In addition to affordable housing projects, the Company also invests in New Market Tax Credit projects that qualify for CRA credits, as well as eligible projects that qualify for renewable energy and historic tax credits. Investments in renewable energy tax credits help promote the development of renewable energy sources, and the investments in historic tax credits promote the rehabilitation of historic buildings and economic revitalization of the surrounding areas.

Investments in Qualified Affordable Housing Partnerships, Net

The Company records its investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

The following table presents the Company’s investments in qualified affordable housing partnerships, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in qualified affordable housing partnerships, net	$	207,037	$	184,873
Accrued expenses and other liabilities — Unfunded commitments	$	80,294	$	80,764

The following table presents additional information related to the Company’s investments in qualified affordable housing partnerships, net, for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Tax credits and other tax benefits recognized	$	46,034	$	39,262	$	46,698
Amortization expense included in income tax expense	$	36,561	$	28,046	$	38,464

Investments in Tax Credit and Other Investments, Net

Depending on the ownership percentage and the influence the Company has on the investments in tax credit and other investments, net, the Company applies the equity or cost method of accounting, or the measurement alternative as elected under ASU 2016-01 for equity investments without readily determinable fair value.

The following table presents the Company’s investments in tax credit and other investments, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in tax credit and other investments, net	$	254,140	$	231,635
Accrued expenses and other liabilities — Unfunded commitments	$	113,515	$	80,228

Amortization of tax credit and other investments was $85.5 million, $89.6 million, and $88.0 million for the years ended December 31, 2019, 2018 and 2017, respectively.

132

Included in Investments in tax credit and other investments, net, on the Consolidated Balance Sheet were equity securities with readily determinable fair values of $31.7 million and $31.2 million, as of December 31, 2019 and 2018, respectively. These equity securities are CRA investments and were measured at fair value with changes in fair value recorded in net income. The Company recorded unrealized gains on these equity securities of $789 thousand for the year ended December 31, 2019, and unrealized losses of $547 thousand for the year ended December 31, 2018.

The Company has equity securities without readily determinable fair values at carrying value totaling $19.1 million and $14.2 million as of December 31, 2019 and 2018, respectively, which are measured under the measurement alternative and the related adjustments from observable price changes. For the years ended December 31, 2019 and 2018, there were no adjustments to these securities.

As of December 31, 2019, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows:

($ in thousands)	Amount
2020	$	121,875
2021	32,039
2022	13,459
2023	15,753
2024	8,145
Thereafter	2,538
Total	$	193,809

The Company invested in four solar energy tax credit funds in the years 2014, 2015, 2017 and 2018 as a limited member. These tax credit funds engaged in the acquisition and leasing of mobile solar generators through DC Solar and affiliates (“DC Solar”) entities. These investments were recorded in Investments in tax credit and other investments, net on the Consolidated Balance Sheet and were accounted for under the equity method of accounting. DC Solar had its assets frozen in December 2018 and filed for bankruptcy protection in February 2019. In February 2019, an affidavit from a Federal Bureau of Investigation (“FBI”) special agent stated that DC Solar was operating a fraudulent “Ponzi-like scheme” and that the majority of the mobile solar generators sold to investors and managed by DC Solar, as well as the majority of the related lease revenues claimed to had been received by DC Solar might not have existed.

Tax credit investments are evaluated for possible OTTI on an annual basis or when events or changes in circumstances suggest that the carrying amount of the tax credit investments may not be realizable. Refer to Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for a discussion on the Company’s impairment evaluation and monitoring process of tax credit investments. Investments in tax credit and other investments, net related to DC Solar tax credit investments was $7.0 million out of the $231.6 million as of December 31, 2018. During the first quarter of 2019, the Company fully wrote off its tax credit investments related to DC Solar and recorded a $7.0 million OTTI charge within Amortization of tax credit and other investments on the Consolidated Statement of Income. The Company concluded at that time that there would be no material future cash flows related to these investments, in part because of the fact that DC Solar has ceased operations and its bankruptcy case had been converted from Chapter 11 to Chapter 7 on March 22, 2019. During the fourth quarter of 2019, the Company recorded a $1.6 million pre-tax impairment recovery related to DC Solar. There were no balances recorded in Accrued expenses and other liabilities — Unfunded commitments related to DC Solar as of December 31, 2019 and 2018. Refer to Note 14 — Income Taxes to the Consolidated Financial Statements in this Form 10-K for a further discussion related to the impacts on the Company’s income tax expense related to the DC solar tax credit investments.

For the year ended December 31, 2019, the Company recorded an OTTI charge of $14.6 million related to historic tax credits, DC Solar and a CRA investment within Amortization of tax credit and other investments on the Consolidated Statement of Income. The Company also recorded a $1.6 million impairment recovery related to the previously charged-off DC Solar. In comparison, there was no OTTI charge or recovery recorded for the year ended December 31, 2018.

133

Variable Interest Entities

The Company invests in unconsolidated limited partnerships and similar entities that construct, own and operate affordable housing, historic rehabilitation projects, wind and solar projects, of which the majority of such investments are VIEs. As a limited partner in these partnerships, these investments are designed to generate a return primarily through the realization of federal tax credits and tax benefits. An unrelated third party is typically the general partner or managing member who has control over the significant activities of such investments. While the Company’s interest in some of the investments may exceed 50% of the outstanding equity interests, the Company does not consolidate these structures due to the general partner or managing member’s ability to manage the entity, which is indicative of power over them. The Company’s maximum exposure to loss in connection with these partnerships consist of the unamortized investment balance and any tax credits claimed that may become subject to recapture.

Special purpose entities formed in connection with securitization transactions are generally considered VIEs. The Company is the servicer of the multifamily residential loans it has securitized in 2016. The Company does not consolidate the multifamily securitization entity because it does not have power and does not have a variable interest that could potentially be significant to the VIE. A CLO is a VIE that purchases a pool of assets consisting primarily of non-investment grade corporate loans and issues multiple tranches of notes to investors to fund the asset purchases and pay upfront expenses associated with forming the CLO. The Company serves as the collateral manager of a CLO that closed in the fourth quarter of 2019 and retained a portion of the senior securities issued by the CLO. The Company does not consolidate the CLO as it does not hold interests that could potentially be significant to the CLO. The Company’s maximum exposure to loss from the CLO is equal to the carrying amount of the retained securities of $284.7 million as of December 31, 2019.

Note 9 — Goodwill and Other Intangible Assets

Goodwill

Total goodwill was $465.7 million and $465.5 million as of December 31, 2019 and 2018, respectively. Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. The Company assesses goodwill for impairment at the reporting unit level (at the same level as the Company’s business segments) on an annual basis as of December 31 each year, or more frequently if events or circumstances, such as adverse changes in the economic or business environment, indicate there may be impairment. The Company organizes its operation into three reporting segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. For information on how the reporting units are identified and components are aggregated, see Note 21 — Business Segments to the Consolidated Financial Statements in this Form 10-K.

There was no change in the carrying amount of goodwill during the year ended December 31, 2017. The following table presents changes in the carrying amount of goodwill by reporting unit during years ended December 31, 2019 and 2018:

($ in thousands)	Consumer and Business Banking			Commercial Banking		Total
Balance, January 1, 2018	$	357,207		$	112,226	$	469,433
Disposition of the DCB branches	(3,886		)	—		(3,886		)
Balance, December 31, 2018	$	353,321		$	112,226	$	465,547
Balance, January 1, 2019	$	353,321		$	112,226	$	465,547
Acquisition of Enstream Capital Markets, LLC	—			150		150
Balance, December 31, 2019	$	353,321		$	112,376	$	465,697

134

Impairment Analysis

The Company conducts a two-step goodwill impairment test at the reporting unit level on an annual basis, or more frequently as events occur or circumstances that change the economic or business environment that may reduce the fair value of a reporting unit below carrying amount. For the two-step goodwill impairment test, the first step is to identify potential impairment by determining the fair value of each reporting unit and comparing such fair value to its corresponding carrying amount. If the fair value of a reporting unit is less than its carrying amount, the second step is performed to measure the amount of impairment loss, if any, by comparing the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss shall be recognized in an amount equal to that excess. The loss recognized cannot exceed the carrying amount of goodwill.

The Company completed the quantitative step one analysis of goodwill impairment test as of December 31, 2019 using a combined income and market approach to determine the fair value of the reporting units. Under the income approach, the Company projected future cash flows based on appropriate growth expectation and used appropriate discount rate assumption to calculate the discounted cash flows and the present value of the reporting units. Under the market approach, the fair value was calculated using price multiples of relevant peer banks with a control premium adjustment, which represents the cost savings that a purchaser of the reporting units could be achieved by eliminating duplicative costs. Under the combined income and market approach, the Company applied weighted average to determine the fair value of each reporting unit. As a result of this analysis, the Company determined that there was no goodwill impairment as of December 31, 2019 as the fair value of all reporting units exceeded the carrying amount of their respective reporting unit.

Core Deposit Intangibles

Core deposit intangibles represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions and are included in Other assets on the Consolidated Balance Sheet. These intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant. Core deposit intangibles associated with the sale of the Bank’s DCB branches with a net carrying amount of $1.0 million were written off in the first quarter of 2018. There were no impairment write-downs on the remaining core deposit intangibles for the years ended December 31, 2019, 2018 and 2017.

The following table presents the gross carrying amount of core deposit intangible assets and accumulated amortization as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019			2018
Gross balance (1)	$	86,099		$	86,099
Accumulated amortization (1)	(76,088		)	(71,570		)
Net carrying balance (1)	$	10,011		$	14,529

(1) Excludes fully amortized core deposit intangible assets.

Amortization Expense

The Company amortizes the core deposit intangibles based on the projected useful lives of the related deposits. The amortization expense related to the core deposit intangible assets was $4.5 million, $5.5 million and $6.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

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The following table presents the estimated future amortization expense of core deposit intangibles as of December 31, 2019:

($ in thousands)	Amount
2020	$	3,634
2021	2,749
2022	1,865
2023	1,199
2024	553
Thereafter	11
Total	$	10,011

Note 10 — Leases

On January 1, 2019, the Company adopted ASU 2016-02, Leases (Topic 842), as amended. As both a lessee and lessor, the Company elected the package of practical expedients available for leases that commenced before the adoption date. As such, the Company need not reassess: (1) whether any expired or existing contracts are or contain leases; (2) the lease classification for any expired or existing leases; and (3) the initial direct costs for any expired or existing leases, such as costs that would qualify for capitalization. The Company also elected the hindsight practical expedient to determine the lease term and to assess impairment on the Company’s right-of-use assets, and the practical expedient to not separate lease and non-lease components, consistently across all leases.

Lessee Arrangements

The Company determines if an arrangement is a lease or contains a lease at inception. As of December 31, 2019, the Company was obligated under a number of non-cancellable leases, predominantly operating leases for certain retail banking branches and office spaces in the U.S. and Greater China. These operating leases expire in the years ranging from 2020 to 2030, exclusive of renewal and termination options. Some of these leases include options to extend the leases for up to 15 years, while certain leases include lessee termination options. The Company's measurement of the operating lease liability and right-of-use asset does not include payments associated with the options to extend or terminate the lease since it is not reasonably certain that the Company will exercise the options. A portion of the operating leases includes variable lease payments, primarily based on the usage of the asset or the consumer price index as specified in the lease agreements. The Company does not remeasure lease liabilities as a result of changes to variable lease payments. The Company also has equipment and air rights finance leases which expire in the years ranging from 2021 to 2047.

The right-of-use assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s leases do not provide an implicit rate, the Company’s incremental borrowing rate based on the information available at the later of the adoption date or the lease commencement date is used to determine the present value of future payments. This approximates a collateralized borrowing rate over a similar term for an amount equal to the lease payments in a similar economic environment.

The following table presents the lease related assets and liabilities recorded on the Consolidated Balance Sheet as of December 31, 2019:

($ in thousands)	Classification on the Consolidated Balance Sheet	December 31, 2019
Assets:
Operating lease assets	Operating lease right-of use assets	$	99,973
Finance lease assets	Premises and equipment	7,897
Total lease assets		$	107,870
Liabilities:
Operating lease liabilities	Operating lease liabilities	$	108,083
Finance lease liabilities	Long-term debt and finance lease liabilities	5,169
Total lease liabilities		$	113,252

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The following table presents the components of lease expense for operating and finance leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Operating lease cost	$	34,850
Finance lease cost:
Amortization of right-of-use assets	807
Interest on lease liabilities	161
Variable lease cost	120
Sublease income	(81		)
Net lease cost	$	35,857

The following table presents the supplemental cash flow information related to leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	35,496
Operating cash flows from finance leases	$	161
Financing cash flows from finance leases	$	883
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases	$	21,716
Financing leases	$	304

The following table presents the weighted-average remaining lease terms and discount rates related to leases as of December 31, 2019:

	December 31, 2019
Weighted-average remaining lease term (in years):
Operating leases	4.6
Finance leases	16.2
Weighted-average discount rate:
Operating leases	3.19	%
Finance leases	2.84	%

The following table presents a maturity analysis of the Company’s operating and finance lease liabilities as of December 31, 2019:

($ in thousands)	Operating Leases			Finance Leases
2020	$	32,590		$	1,059
2021	28,761			1,053
2022	19,073			698
2023	12,069			403
2024	9,150			157
Thereafter	14,636			3,305
Total minimum lease payments	$	116,279		$	6,675
Less: imputed interest	(8,196		)	(1,506		)
Present value of lease liabilities	$	108,083		$	5,169

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Upon adopting the new lease guidance, the Company elected the modified retrospective approach without revising comparative prior periods. Rental expense related to non-cancellable operating lease agreements was $31.9 million and $29.7 million for the years ended December 31, 2018 and 2017, respectively. As of December 31, 2018, the minimum rental payments under non-cancellable operating leases were $42.0 million, $36.2 million, $30.7 million, $21.4 million and $15.0 million for 2019 through 2023, respectively, and $40.4 million in the aggregate for all years thereafter.

Lessor Arrangements

The Company finances equipment under direct financing and sales-type leases to its commercial customers. As of December 31, 2019, the total net investment in direct financing and sales-type leases was $141.3 million with expiration in the years ranging from 2020 to 2027, exclusive of renewal options. Some of the leases include options to extend the leases, while others include early buyout options. As the Company is not reasonably certain at lease commencement that the purchase options will be exercised by the lessees, the lease terms exclude the purchase option.

The unguaranteed residual value is recorded at the present value of the amount the Company expects to derive from the underlying asset following the end of the lease term, which is not guaranteed by the lessee or any third party, discounted using the rate implicit in the lease. In certain cases, the Company obtains residual value insurance from third parties and/or guarantees from the lessee to manage the risk associated with the residual value of the leased assets. The carrying amount of guaranteed residual value, which was included in Loans held-for-investment on the Consolidated Balance Sheet, was $31.6 million as of December 31, 2019.

The following table presents the components of the net investment in direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	December 31, 2019
Lease receivables	$	126,517
Unguaranteed residual assets	14,793
Net investment in direct financing and sales-type leases	$	141,310

The lease income for direct financing and sales-type leases was $5.9 million for the year ended December 31, 2019.

The following table presents future minimum lease payments that are expected to be received under the direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	Direct Financing and Sales-Type Leases
2020	$	27,580
2021	25,548
2022	18,154
2023	11,960
2024	8,512
Thereafter	11,708
Total minimum lease payments	$	103,462
Less: imputed interest	(9,783		)
Present value of lease receivables	$	93,679

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Note 11 — Deposits

The following table presents the composition of the Company’s deposits as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Deposits:
Noninterest-bearing demand	$	11,080,036	$	11,377,009
Interest-bearing checking	5,200,755		4,584,447
Money market	8,711,964		8,262,677
Savings	2,117,196		2,146,429
Time deposits:
Less than $100,000	1,993,950		1,957,121
$100,000 or greater	8,220,358		7,111,945
Total deposits	$	37,324,259	$	35,439,628

The aggregate amount of domestic time deposits that meet or exceed the current Federal Deposit Insurance Corporation (“FDIC”) insurance limit of $250,000 was $5.44 billion and $4.45 billion as of December 31, 2019 and 2018, respectively. As of both December 31, 2019 and 2018, the aggregate amount of foreign office time deposits, including both Hong Kong and China that meet or exceed the current FDIC insurance limit of $250,000 was $1.19 billion.

As of December 31, 2019, $493.4 million of interest-bearing demand deposits and $1.21 billion of time deposits were held by the Company’s branch in Hong Kong and subsidiary bank in China. As of December 31, 2018, $621.3 million of interest-bearing demand deposits and $1.21 billion of time deposits were held by the Company’s branch in Hong Kong and subsidiary bank in China.

The following table presents the scheduled maturities of time deposits for the five years succeeding December 31, 2019 and thereafter:

($ in thousands)	Amount
2020	$	9,653,276
2021	428,971
2022	59,324
2023	36,633
2024	7,024
Thereafter	29,080
Total	$	10,214,308

Note 12 — Federal Home Loan Bank Advances and Long-Term Debt

FHLB Advances

FHLB advances to the Bank totaled $745.9 million and $326.2 million as of December 31, 2019 and 2018, respectively. The FHLB advances have both fixed and floating interest rates that reset monthly or quarterly based on LIBOR. The weighted-average interest rate was 2.19% and 2.87% as of December 31, 2019 and 2018, respectively. The interest rates ranged from 1.82% to 3.13% and 1.79% to 2.98% for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, FHLB advances that will mature in the next five years include $100.0 million in 2020, $400.0 million in 2021 and $245.9 million in 2022.

The Bank’s available borrowing capacity from FHLB advances totaled $6.83 billion and $6.11 billion as of December 31, 2019 and 2018, respectively. The Bank’s available borrowing capacity from the FHLB is derived from its portfolio of loans that are pledged to the FHLB reduced by its outstanding FHLB advances. As of December 31, 2019 and 2018, all advances were secured by real estate loans.

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Long-Term Debt — Junior Subordinated Debt

As of December 31, 2019, East West has six statutory business trusts for the purpose of issuing junior subordinated debt to third party investors. The junior subordinated debt was issued in connection with the East West’s various pooled trust preferred securities offerings. The Trusts issued both fixed and variable rate capital securities, representing undivided preferred beneficial interests in the assets of the Trusts, to third party investors. East West is the owner of all the beneficial interests represented by the common securities of the Trusts. The junior subordinated debt is recorded as a component of long-term debt and includes the value of the common stock issued by six of East West’s wholly-owned subsidiaries in conjunction with these transactions. The common stock is recorded in Other assets on the Consolidated Balance Sheet for the amount issued in connection with these junior subordinated debt issuances.

The following table presents the outstanding junior subordinated debt issued by each trust as of December 31, 2019 and 2018:

Issuer	Stated Maturity (1)	Stated Interest Rate	Current Rate	December 31, 2019				December 31, 2018
				Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts		Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts
($ in thousands)
East West Capital Trust V	November 2034	3-month LIBOR + 1.80%	3.71%	$	464	$	15,000	$	464	$	15,000
East West Capital Trust VI	September 2035	3-month LIBOR + 1.50%	3.39%	619		20,000		619		20,000
East West Capital Trust VII	June 2036	3-month LIBOR + 1.35%	3.24%	928		30,000		928		30,000
East West Capital Trust VIII	June 2037	3-month LIBOR + 1.40%	3.29%	619		18,000		619		18,000
East West Capital Trust IX	September 2037	3-month LIBOR + 1.90%	3.79%	928		30,000		928		30,000
MCBI Statutory Trust I	December 2035	3-month LIBOR + 1.55%	3.44%	1,083		35,000		1,083		35,000
Total				$	4,641	$	148,000	$	4,641	$	148,000

(1) All the above debt instruments mature more than five years after December 31, 2019 and are subject to call options where early redemption requires appropriate notice.

The proceeds from these issuances represent liabilities of East West to the Trusts and are reported on the Consolidated Balance Sheet as a component of Long-term debt. As of December 31, 2019 and 2018, the Company had outstanding junior subordinated debt of $147.1 million and $146.8 million, respectively. Interest payments on these securities are made quarterly and are deductible for tax purposes.

Term Loan

In 2013, East West entered into a $100.0 million three-year term loan agreement. The terms of the agreement were modified in 2015 to extend the term loan maturity from July 1, 2016 to December 31, 2018, where principal repayments of $5.0 million were due quarterly. The term loan bears interest at the rate of the three-month LIBOR plus 150 basis points and the weighted-average interest rate was 3.60% for the year ended December 31, 2018. As of both December 31, 2019 and 2018, the term loan had no outstanding balances as East West had made all scheduled principal repayments on the term loan in the fourth quarter of 2018.

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Note 13 — Revenue from Contracts with Customers

The following tables present revenue from contracts with customers within the scope of ASC 606, Revenue from Contracts with Customers, and other noninterest income, segregated by operating segments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	21,327	$	13,564	$	49	$	34,940
Card income	3,032		676		—		3,708
Wealth management fees	15,841		827		—		16,668
Total revenue from contracts with customers	40,200		15,067		49		55,316
Other sources of noninterest income (1)	17,720		119,555		16,786		154,061
Total noninterest income	$	57,920	$	134,622	$	16,835	$	209,377

($ in thousands)	Year Ended December 31, 2018
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	22,474	$	12,326	$	423	$	35,223
Card income	3,196		757		—		3,953
Wealth management fees	13,357		428		—		13,785
Total revenue from contracts with customers	39,027		13,511		423		52,961
Other sources of noninterest income (1)	46,580		96,776		14,592		157,948
Total noninterest income	$	85,607	$	110,287	$	15,015	$	210,909

($ in thousands)	Year Ended December 31, 2017
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	24,109	$	11,476	$	464	$	36,049
Card income	3,465		785		—		4,250
Wealth management fees	12,218		1,756		—		13,974
Total revenue from contracts with customers	39,792		14,017		464		54,273
Other sources of noninterest income (1)	14,659		96,072		92,744		203,475
Total noninterest income	$	54,451	$	110,089	$	93,208	$	257,748

(1) Primarily represents revenue from contracts with customers that are out of the scope of ASC 606, Revenue from Contracts with Customers.

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Generally, the Company recognizes revenue from contracts with customers when it satisfies its performance obligations. The Company’s performance obligations are typically satisfied as services are rendered. The Company generally records contract liabilities, or deferred revenue, when payments from customers are received or due in advance of providing services. The Company records contract assets when services are provided to customers before payment is received or before payment is due. Since the Company receives payments for its services during the period or at the time services are provided, there were no contract assets or contract liabilities as of both December 31, 2019 and 2018.

The major revenue streams by fee type that are within the scope of ASC 606 presented in the above tables are described in additional detail below:

Deposit Account Fees — Deposit Service Charges and Related Fee Income

The Company offers a range of deposit products to individuals and businesses, which includes savings, money market, checking and time deposit accounts. The deposit account services include ongoing account maintenance, as well as certain optional services such as automated teller machine usage, wire transfer services or check orders. In addition, treasury management and business account analysis services are offered to commercial deposit customers. The monthly account fees may vary with the amount of average monthly deposit balances maintained, or the Company may charge a fixed monthly account maintenance fee if certain average balances are not maintained. In addition, each time a deposit customer selects an optional service, the Company may earn transactional fees, generally recognized by the Company at the point in time when the transaction occurs. For business analysis accounts, commercial deposit customers receive an earnings credit based on their account balance, which can be used to offset the cost of banking and treasury management services. Business analysis accounts that are assessed fees in excess of earnings credits received are typically charged at the end of each month, after all transactions are known and the credits are calculated.

Deposit Account Fees — Card Income

Card income is comprised of merchant referral fees and interchange income. For merchant referral fees, the Company provides marketing and referral services to acquiring banks for merchant card processing services and earns variable referral fees based on transaction activities. The Company satisfies its performance obligation over time as the Company identifies, solicits, and refers business customers who are provided such services. The Company receives monthly fees net of consideration it pays to the acquiring bank performing the merchant card processing services. The Company recognizes revenue on a monthly basis when the uncertainty associated with the variable referral fees is resolved after the Company receives monthly statements from the acquiring bank. For interchange income, the Company, as a card issuer, has a stand ready performance obligation to authorize, clear, and settle card transactions. The Company earns, or pays, interchange fees, which are percentage-based on each transaction, and based on rates published by the corresponding payment network for transactions processed using their network. The Company measures its progress toward the satisfaction of its performance obligation over time, as services are rendered, and the Company provides continuous access to this service and settles transactions as its customer or the payment network requires. Interchange income is presented net of direct costs paid to the customer and entities in their distribution chain, which are transaction-based expenses such as rewards program expenses and certain network costs. Revenue is recognized when the net profit is determined by the payment networks at the end of each day.

Wealth Management Fees

The Company employs financial consultants to provide investment planning services for customers including wealth management services, asset allocation strategies, portfolio analysis and monitoring, investment strategies, and risk management strategies. The fees the Company earns are variable and are generally received monthly.  The Company recognizes revenue for the services performed at quarter-end based on actual transaction details received from the broker-dealer the Company engages.

Practical Expedients and Exemptions

The Company applies the practical expedient in ASC 606-10-50-14 and does not disclose the value of unsatisfied performance obligations as the Company’s contracts with customers generally have a term that is less than one year, are open-ended with a cancellation period that is less than one year, or allow the Company to recognize revenue in the amount to which the Company has the right to invoice.

In addition, given the short-term nature of the contracts, the Company also applies the practical expedient in ASC 606-10-32-18 and does not adjust the consideration from customers for the effects of a significant financing component, if at contract inception the period between when the entity transfers the goods or services and when the customer pays for that good or service is one year or less.

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Note 14 — Income Taxes

Impact of Tax Cuts and Jobs Act of 2017

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was enacted, resulting in significant changes to the Internal Revenue Code. U.S. GAAP requires companies to recognize the effect of tax law changes on deferred tax assets and liabilities and other recognized assets in the period of enactment. In December 2017, the U.S. Securities and Exchange Commission (“SEC”) staff issued Staff Accounting Bulletin No.118 (“SAB 118”). SAB 118 allows the recording of a provisional estimate to reflect the income tax impact of the U.S. tax legislation and provides a measurement period up to one year from the enactment date. During the year ended December 31, 2017, the Company recorded $41.7 million in income tax expense related to the impact of the Tax Act, of which this amount was primarily related to the remeasurements of certain deferred tax assets and liabilities of $33.1 million, as well as the remeasurements of tax credits and other tax benefits related to qualified affordable housing partnerships of $7.9 million. During the year ended December 31, 2018, management finalized its assessment of the initial impact of the Tax Act, which resulted in an increase in income tax expense of $985 thousand ensuing from the remeasurement of deferred tax assets and liabilities. The overall impact of the Tax Act was a one-time increase in income tax expense of $42.7 million.

Impact of Investment in DC Solar Tax Credit Funds

Investors in DC Solar funds, including the Company, received tax credits for making renewable energy investments. The Company’s investments in the DC Solar tax credit funds qualified for federal energy tax credit under Section 48 of the Internal Revenue Code of 1986, as amended. The Company also received a “should” level legal opinion from an external law firm supporting the legal structure of the investments for tax credit purposes. Between 2014 and 2018, the Company had invested in four DC Solar energy tax credit funds and claimed tax credits of approximately $53.9 million, partially reduced by a deferred tax liability of $5.7 million related to the 50% tax basis reduction, for a net impact of $48.2 million to the Consolidated Financial Statements.

ASC 740-10-25-6 states in part, that an entity shall initially recognize the financial statement effects of a tax position when it is more-likely-than-not, based on the technical merits, that the position will be sustained upon examination. The term “more-likely-than-not” means a likelihood of more than 50 percent; the terms “examined” and “upon examination” include resolution of the related appeals or litigation processes, if any. The level of evidence that is necessary and appropriate to support the technical merits of a tax position is subject to judgment and depends on available information as of the balance sheet date. A subsequent measurement of a tax position is based on management’s best judgment given the facts, circumstances and information available at the latest quarterly reporting date. A change in judgment that results in a subsequent derecognition or change in measurement of a tax position is recognized as a discrete item in the period in which the change occurs.

In February 2019, an affidavit from a FBI special agent stated that DC Solar was operating a fraudulent “Ponzi-like scheme” and that the majority of the mobile solar generators sold to investors and managed by DC Solar, as well as the majority of the related lease revenues claimed to have been received by DC Solar might not have existed. The Company, in coordination with other fund investors, engaged an unaffiliated third-party inventory firm to investigate the actual number of mobile solar generators in existence. Based on the inventory report, none of the mobile service generators that had been purchased by the Company’s 2017 and 2018 tax credit funds were found. On the other hand, a vast majority of the mobile solar generators purchased by the Company’s 2014 and 2015 tax credit funds were found. Based on the inventory information, as well as management’s best judgments regarding the future settlement of the related tax positions with the Internal Revenue Service (“IRS”), the Company concluded that a portion of the previously claimed tax credits would be recaptured. During the year ended December 31, 2019, the Company reversed $33.6 million out of the $53.9 million previously claimed tax credits, and $3.5 million out of the $5.7 million deferred tax liability, resulting in $30.1 million of additional income tax expense.

The Company continues to conduct an ongoing investigation related to this matter. For further discussion related to the Company’s investment in DC Solar and the Company’s impairment evaluation and monitoring process in tax credit investments, refer to Note 8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities and Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

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The following table presents the components of income tax expense for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Current income tax expense (benefit):
Federal	$	107,393		$	63,035		$	120,968
State	86,578			64,917			72,837
Foreign	(2,485		)	3,513			1,815
Total current income tax expense	191,486			131,465			195,620
Deferred income tax (benefit) expense:
Federal	(8,801		)	(11,870		)	40,057
State	(16,390		)	(4,600		)	(6,201		)
Foreign	3,587			—			—
Total deferred income tax (benefit) expense	(21,604		)	(16,470		)	33,856
Income tax expense	$	169,882		$	114,995		$	229,476

The following table presents the reconciliation of the federal statutory rate to the Company’s effective tax rate for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
	2019		2018		2017
Statutory U.S. federal tax rate	21.0	%	21.0	%	35.0	%
U.S. state income taxes, net of U.S. federal income tax effect	7.1		5.8		5.9
The Tax Act	—		0.1		4.5
Tax credits and affordable housing, net of amortization	(10.4	)	(13.3	)	(15.1	)
Other, net	2.4		0.4		0.9
Effective tax rate	20.1	%	14.0	%	31.2	%

The 6.1% increase in effective tax rate to 20.1% in 2019, from 14.0% in 2018 was primarily due to the $30.1 million of income tax expense recorded to reverse certain previously claimed tax credits related to the Company’s investment in DC Solar, as well as $14.7 million decrease in tax credits recognized from investments in renewable energy and historic rehabilitation tax credit projects. The 2018 effective income tax rate reflected the reduction to the U.S. federal income tax rate from 35% to 21% resulting from the Tax Act.

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The tax effects of temporary differences that give rise to a significant portion of deferred tax assets and liabilities as of December 31, 2019 and 2018 are presented below:

($ in thousands)	December 31,
	2019			2018
Deferred tax assets:
Allowance for loan losses	$	109,903		$	96,876
Investments in qualified affordable housing partnerships, tax credit and other investments, net	11,190			3,691
Deferred compensation	23,816			18,724
Interest income on nonaccrual loans	9,527			8,602
State taxes	5,848			4,506
Unrealized gains/losses on securities	324			20,233
Tax credit carryforwards	—			26,831
Premises and equipment	1,578			1,887
Deferred gain	—			4,476
Lease liability	35,948			2,604
Other	641			6,178
Total gross deferred tax assets	198,775			194,608
Valuation allowance	(21		)	(128		)
Total deferred tax assets, net of valuation allowance	$	198,754		$	194,480
Deferred tax liabilities:
Equipment lease financing	$	30,669		$	30,523
Investments in qualified affordable housing partnerships, tax credit and other investments, net	12,301			30,706
Core deposit intangibles	3,032			4,427
FHLB stock dividends	1,854			1,866
Mortgage servicing assets	1,839			2,390
Acquired debt	1,679			1,771
Prepaid expenses	1,100			1,207
Premises and equipment	1,890			1,078
Operating lease right-of-use assets	34,313			—
Other	3,590			2,872
Total gross deferred tax liabilities	$	92,267		$	76,840
Net deferred tax assets	$	106,487		$	117,640

The tax benefits of deductible temporary differences and tax carryforwards are recorded as an asset to the extent that management assesses the utilization of such temporary differences and carryforwards to be more-likely-than-not. A valuation allowance is used, as needed, to reduce the deferred tax assets to the amount that is more-likely-than-not to be realized. Evidence the Company considers includes the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes), and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. The Company expects to have sufficient taxable income in future years to fully realize its deferred tax assets. The Company also performed an overall assessment by weighing all positive evidence against all negative evidence and concluded that it is more-likely-than-not that all of the benefits of the deferred tax assets will be realized, with the exception of the deferred tax assets related to certain state net operating losses (“NOL”) carryforwards. For states other than California, Georgia, Massachusetts and New York, because management believes that the state NOL carryforwards may not be fully utilized, a valuation allowance of $21 thousand and $128 thousand was recorded for such carryforwards as of December 31, 2019 and 2018, respectively. As of December 31, 2019 and 2018, the Company recorded net deferred tax assets of $106.5 million and $117.6 million, respectively, in Other assets on the Consolidated Balance Sheet.

In 2018, the Company early adopted ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits companies to reclassify the stranded tax effects resulting from the Tax Act from AOCI to retained earnings on a retrospective basis. The adoption of the guidance resulted in a cumulative-effect adjustment as of January 1, 2018 that increased retained earnings by $6.7 million and reduced AOCI by the same amount. For additional information refer to Note 19 — Accumulated Other Comprehensive Income (Loss).

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The following table presents a reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Beginning balance	$	4,378		$	10,419		$	10,419
Additions for tax positions related to prior years	30,103			—			—
Deductions for tax positions related to prior years	(34,481		)	(3,969		)	—
Settlements with taxing authorities	—			(2,072		)	—
Ending balance	$	—		$	4,378		$	10,419

The Company believes that adequate provisions have been made for all income tax uncertainties consistent with the standards of ASC 740-10. The Company recognizes interest and penalties, as applicable, related to the underpayment of income taxes as a component of Income tax expense on the Consolidated Statement of Income. The Company recorded a (reversal) charge of $(6.3) million, $(2.0) million and $450 thousand of interest and penalties for the years ended December 31, 2019, 2018 and 2017, respectively. Total accrued interest and penalties included in Accrued expenses and other liabilities on the Consolidated Balance Sheet was $6.3 million as of December 31, 2018. There was no liability for accrued interest and penalties as of December 31, 2019.

Beginning with its 2012 tax year, the Company has executed a Memorandum of Understanding (“MOU”) with the IRS to voluntarily participate in the IRS Compliance Assurance Process (“CAP”). Under the CAP, the IRS audits the tax position of the Company to identify and resolve any tax issues that may arise throughout the tax year. The objective of the CAP is to resolve issues in a timely and contemporaneous manner and eliminate the need for a lengthy post-filing examination. The Company has executed a MOU with the IRS for the 2019 tax year. For federal tax purposes, the IRS had completed the 2017 and earlier tax years’ corporate income tax return examination. The state of Oregon is also conducting an audit of the Company’s corporate income tax return for the 2017 tax year and the City of New York is auditing the Company’s corporate income tax return for the 2015 and 2016 tax years. In addition, the state of New York has initiated an audit of the Company’s 2016 to 2018 corporate income tax returns. The Company does not believe that the outcome of unresolved issues or claims in any tax jurisdiction is likely to be material to the Company’s financial position, cash flows or results of operations. The Company believes that adequate provisions have been recorded for all income tax uncertainties consistent with ASC 740, Income Taxes as of December 31, 2019.

Note 15 — Commitments, Contingencies and Related Party Transactions

Commitments to Extend Credit — In the normal course of business, the Company provides customers loan commitments on predetermined terms. These outstanding commitments to extend credit are not reflected in the accompanying Consolidated Financial Statements. While the Company does not anticipate losses as a result of these transactions, commitments to extend credit are included in determining the appropriate level of the allowance for unfunded commitments, and outstanding commercial and SBLCs.

The following table presents the Company’s credit-related commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Loan commitments	$	5,330,211	$	5,147,821
Commercial letters of credit and SBLCs	$	1,860,414	$	1,796,647

Loan commitments are agreements to lend to customers provided that there are no violations of any conditions established in the agreement. Commitments generally have fixed expiration dates or other termination clauses and may require maintenance of compensatory balances. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements.

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Commercial letters of credit are issued to facilitate domestic and foreign trade transactions, while SBLCs are generally contingent upon the failure of the customers to perform according to the terms of the underlying contract with the third party. As a result, the total contractual amounts do not necessarily represent future funding requirements. The Company’s historical experience is that SBLCs typically expire without being funded. Additionally, in many cases, the Company holds collateral in various forms against these SBLCs. As part of its risk management activities, the Company monitors the creditworthiness of customers in conjunction with its SBLC exposure. Customers are obligated to reimburse the Company for any payment made on the customers’ behalf. If the customers fail to pay, the Company would, as applicable, liquidate the collateral and/or offset accounts. As of December 31, 2019, total letters of credit of $1.86 billion were comprised of SBLCs of $1.81 billion and commercial letters of credit of $48.5 million.

The Company applies the same credit underwriting criteria to extend loans, commitments and conditional obligations to customers. Each customer’s creditworthiness is evaluated on a case-by-case basis. Collateral and financial guarantees may be obtained based on management’s assessment of a customer’s credit. Collateral may include cash, accounts receivable, inventory, property, plant and equipment, and income-producing commercial property.

Estimated exposure to loss from these commitments is included in the allowance for unfunded credit commitments, and amounted to $11.1 million as of December 31, 2019 and $12.4 million as of December 31, 2018. These amounts are included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.

Guarantees — The Company sells or securitizes single-family and multifamily residential loans with recourse in the ordinary course of business. The recourse component of the loans sold or securitized with recourse is considered a guarantee. As the guarantor, the Company is obligated to repurchase up to the recourse component of the loans if the loans default. The following table presents the types of guarantees the Company had outstanding as of December 31, 2019 and 2018:

($ in thousands)	Maximum Potential Future Payments				Carrying Value
	December 31,				December 31,
	2019		2018		2019		2018
Single-family residential loans sold or securitized with recourse	$	12,578	$	16,700	$	12,578	$	16,700
Multifamily residential loans sold or securitized with recourse	15,892		17,058		40,708		69,974
Total	$	28,470	$	33,758	$	53,286	$	86,674

The Company’s recourse reserve related to these guarantees is included in the allowance for unfunded credit commitments and totaled $76 thousand and $123 thousand as of December 31, 2019 and 2018, respectively. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Company continues to experience minimal losses from the single-family and multifamily residential loan portfolios sold or securitized with recourse.

Litigation — The Company is a party to various legal actions arising in the course of its business. In accordance with ASC 450, Contingencies, the Company accrues reserves for outstanding lawsuits, claims and proceedings when a loss contingency is probable and can be reasonably estimated. The Company estimates the amount of loss contingencies using current available information from legal proceedings, advice from legal counsel and available insurance coverage. Due to the inherent subjectivity of the assessments and unpredictability of the outcomes of the legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, the Company’s exposure and ultimate losses may be higher, and possibly significantly more than the amounts accrued.

Other Commitments — The Company has commitments to invest in qualified affordable housing partnerships, tax credit and other investments as discussed in Note 8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities to the Consolidated Financial Statements in this Form 10-K. As of December 31, 2019 and 2018, these commitments were $193.8 million and $161.0 million, respectively. These commitments are included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.

Related Party Transactions — In the ordinary course of business, the Company may extend credit to related parties, including executive officers, directors and principal shareholders. These related party loans were not material for the years ended December 31, 2019 and 2018.

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Note 16 — Stock Compensation Plans

Pursuant to the Company’s 2016 Stock Incentive Plan, as amended, the Company may issue stocks, stock options, restricted stock, RSUs, stock purchase warrants, stock appreciation rights, phantom stock and dividend equivalents to eligible employees, non-employee directors, consultants, and other service providers of the Company and its subsidiaries. There were no outstanding stock awards other than RSUs as of December 31, 2019, 2018 and 2017. An aggregate of 14.0 million shares of common stock were authorized under the 2016 Stock Incentive Plan, and the total number of shares available for grant was approximately 3.5 million as of December 31, 2019.

The following table presents a summary of the total share-based compensation expense and the related net tax benefits associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Stock compensation costs	$	30,761	$	30,937	$	24,657
Related net tax benefits for stock compensation plans	$	4,792	$	5,089	$	4,775

Restricted Stock Units — RSUs are granted under the Company’s long-term incentive plan at no cost to the recipient. RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. RSUs are authorized to settle predominantly in shares of the Company’s common stock. Certain RSUs will be settled in cash. RSUs entitle the recipient to receive cash dividend equivalents to any dividends paid on the underlying common stock during the period the RSUs are outstanding. RSU dividends are accrued during the vesting period and are paid at the time of vesting. While a portion of RSUs are time-vesting awards, others vest subject to the attainment of specified performance goals referred to as “performance-based RSUs.” Substantially all RSUs are subject to forfeiture until vested unless otherwise specified in the employment terms.

Performance-based RSUs are granted at the target amount of awards. Based on the Company’s attainment of specified performance goals and consideration of market conditions, the number of shares that vest can be adjusted to a minimum of zero and to a maximum of 200% of the target. The amount of performance-based RSUs that are eligible to vest is determined at the end of each performance period and is then added together as the total number of performance shares to vest. Performance-based RSUs cliff vest three years from the date of each grant.

Compensation costs for the time-based awards that will be settled in shares of the Company’s common stock are based on the quoted market price of the Company’s common stock at the grant date. Compensation costs for certain time-based awards that will be settled in cash are adjusted to fair value based on changes in the share price of the Company’s common stock up to the settlement date. Compensation costs associated with performance-based RSUs are based on grant date fair value which considers both market and performance conditions, and is subject to subsequent adjustments based on the changes in the Company’s projected outcome of the performance criteria. Compensation costs of both time-based and performance-based awards are estimated based on awards ultimately expected to vest and recognized on a straight-line basis from the grant date until the vesting date of each grant.

The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2019. The number of outstanding performance-based RSUs stated below assumes the associated performance targets will be met at the target level.

	Time-Based RSUs				Performance-Based RSUs
	Shares		Weighted- Average Grant Date Fair Value		Shares		Weighted- Average Grant Date Fair Value
Outstanding, January 1, 2019	1,121,391		$	51.22	411,290		$	49.93
Granted	500,145		52.46		134,600		54.64
Vested	(387,273	)	31.98		(159,407	)	29.18
Forfeited	(94,395	)	57.48		—		—
Outstanding, December 31, 2019	1,139,868		$	57.78	386,483		$	60.13

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The following table presents a summary of the activities for the Company’s time-based RSUs that will be settled in cash for the year ended December 31, 2019:

	Shares
Outstanding, January 1, 2019	—
Granted	12,145
Vested	—
Forfeited	(507	)
Outstanding, December 31, 2019	11,638

The weighted-average grant date fair value of the time-based awards granted during the years ended December 31, 2019, 2018 and 2017 was $52.46, $66.86 and $55.28, respectively. The weighted-average grant date fair value of the performance-based awards granted during the years ended December 31, 2019, 2018 and 2017 was $54.64, $70.13 and $56.59, respectively. The total fair value of time-based awards that vested during the years ended December 31, 2019, 2018 and 2017 was $20.7 million, $23.1 million and $17.2 million, respectively. The total fair value of performance-based awards that vested during the years ended December 31, 2019, 2018 and 2017 was $14.5 million, $16.2 million and $13.0 million, respectively.

As of December 31, 2019, there were $23.3 million and $13.9 million of total unrecognized compensation costs related to unvested time-based and performance-based RSUs, respectively. These costs are expected to be recognized over a weighted-average period of 1.72 years and 1.81 years, respectively.

Stock Purchase Plan — The 1998 Employee Stock Purchase Plan (the “Purchase Plan”) provides eligible employees of the Company the right to purchase shares of its common stock at a discount. Employees could purchase shares at 90% of the fair market price subject to an annual purchase limitation of $22,500 per employee. As of December 31, 2019, the Purchase Plan qualifies as a non-compensatory plan under Section 423 of the Internal Revenue Code and, accordingly, no compensation expense has been recognized. 2,000,000 shares of the Company’s common stock have been made AFS under the Purchase Plan. During the years ended December 31, 2019 and 2018, 81,221 shares totaling $3.4 million and 51,541 shares totaling $2.8 million, respectively, have been sold to employees under the Purchase Plan. As of December 31, 2019, there were 393,925 shares available under the Purchase Plan.

Note 17 — Employee Benefit Plans

The Company sponsors a defined contribution plan, the East West Bank Employees 401(k) Savings Plan (the “401(k) Plan”), designed to provide retirement benefits financed by participants’ tax deferred contributions for the benefits of its employees. A Roth 401(k) investment option is also available to the participants, with contributions to be made on an after-tax basis. Under the 401(k) Plan, after three months of service, eligible employees may elect to defer up to 80% of their compensation before taxes, up to the dollar limit imposed by the IRS for tax purposes. Participants can also designate a part or all of their contributions as Roth 401(k) contributions. Effective as of April 1, 2019, the Company matches 100% of the first 6% of the Plan participant’s deferred compensation. The Company’s contributions to the Plan are determined annually by the Board of Directors in accordance with the Plan requirements and are invested based on employee investment elections. Plan participants become vested in matching contributions received from the Company at the rate of 20% per year for each full year of service, such that the Plan participants become 100% vested after five years of credited service. For the Plan years ended December 31, 2019, 2018 and 2017, the Company expensed $14.0 million, $9.9 million and $8.9 million, respectively.

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During 2002, the Company adopted a Supplemental Executive Retirement Plan (“SERP”) pursuant to which the Company will pay supplemental pension benefits to certain executive officers designated by the Board of Directors upon retirement based upon the officers’ years of service and compensation. The SERP meets the definition of a pension plan per ASC 715-30, Compensation — Retirement Benefits — Defined Benefit Plans — Pension. The SERP is an unfunded, non-qualified plan under which the participants have no rights beyond those of a general creditor of the Company, and there are no specific assets set aside by the Company in connection with the plan. As of December 31, 2019, there were no additional benefits to be accrued for under the SERP. As of each of December 31, 2019 and 2018, there was one executive officer remaining under the SERP. Benefits expensed and accrued for the years ended December 31, 2019, 2018 and 2017 were $333 thousand, $332 thousand and $331 thousand, respectively. The benefit obligation was $4.2 million as of both December 31, 2019 and 2018. The following table presents a summary of expected SERP payments to be paid for the next five years and thereafter as of December 31, 2019:

Years Ending December 31,	Amount ($ in thousands)
2020	$	339
2021	349
2022	359
2023	370
2024	381
Thereafter	7,103
Total	$	8,901

Note 18 — Stockholders’ Equity and Earnings Per Share

The following table presents the basic and diluted EPS calculations for the years ended December 31, 2019, 2018 and 2017. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Earnings per Share to the Consolidated Financial Statements.

($ and shares in thousands, except per share data)	Year Ended December 31,
	2019		2018		2017
Basic:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Basic EPS	$	4.63	$	4.86	$	3.50
Diluted:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Diluted potential common shares (1)(2)	682		1,307		1,469
Diluted weighted-average number of shares outstanding (1)(2)	146,179		146,169		145,913
Diluted EPS	$	4.61	$	4.81	$	3.47

(1) Includes dilutive shares from RSUs for the year ended December 31, 2019, and from RSUs and warrants for the years ended December 31, 2018 and 2017.

(2) The Company acquired MetroCorp Bancshares, Inc. (“MetroCorp”) on January 17, 2014. Prior to the acquisition, MetroCorp had outstanding warrants to purchase 771,429 shares of its common stock. Upon the acquisition, the rights of the warrant holders were converted into the rights to acquire 230,282 shares of East West’s common stock until January 16, 2019. All warrants were exercised on January 7, 2019.

For the years ended December 31, 2019, 2018 and 2017, 15 thousand, 10 thousand and 14 thousand weighted-average shares of anti-dilutive RSUs, respectively, were excluded from the diluted EPS computation.

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Note 19 — Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in the components of AOCI balances for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	AFS Investment Securities			Foreign Currency Translation Adjustments (1)			Total
Balance, December 31, 2016	$	(28,772	)	$	(19,374	)	$	(48,146	)
Net unrealized gains arising during the period	2,531			12,753			15,284
Amounts reclassified from AOCI	(4,657		)	—			(4,657		)
Changes, net of tax	(2,126		)	12,753			10,627
Balance, December 31, 2017	$	(30,898	)	$	(6,621	)	$	(37,519	)
Cumulative effect of change in accounting principle related to marketable equity securities (2)	385			—			385
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate (3)	(6,656		)	—			(6,656		)
Balance, January 1, 2018, adjusted	(37,169		)	(6,621		)	(43,790		)
Net unrealized losses arising during the period	(6,866		)	(5,732		)	(12,598		)
Amounts reclassified from AOCI	(1,786		)	—			(1,786		)
Changes, net of tax	(8,652		)	(5,732		)	(14,384		)
Balance, December 31, 2018	$	(45,821	)	$	(12,353	)	$	(58,174	)
Net unrealized gains (losses) arising during the period	46,170			(3,636		)	42,534
Amounts reclassified from AOCI	(2,768		)	—			(2,768		)
Changes, net of tax	43,402			(3,636		)	39,766
Balance, December 31, 2019	$	(2,419	)	$	(15,989	)	$	(18,408	)

(1) Represents foreign currency translation adjustments related to the Company’s net investment in non-U.S. operations, including related hedges. The functional currency and reporting currency of the Company’s foreign subsidiary was RMB and USD, respectively.

(2) Represents the impact of the adoption of ASU 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018.

(3) Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018.

The following table presents the components of other comprehensive income (loss), reclassifications to net income and the related tax effects for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019									2018								2017
	Before - Tax			Tax Effect			Net-of- Tax			Before - Tax			Tax Effect		Net-of- Tax			Before - Tax			Tax Effect			Net-of- Tax
AFS investment securities:
Net unrealized gains (losses) arising during the period	$	65,549		$	(19,379	)	$	46,170		$	(9,748	)	$	2,882	$	(6,866	)	$	4,368		$	(1,837	)	$	2,531
Net realized gains reclassified into net income (1)	(3,930		)	1,162			(2,768		)	(2,535		)	749		(1,786		)	(8,037		)	3,380			(4,657		)
Net change	61,619			(18,217		)	43,402			(12,283		)	3,631		(8,652		)	(3,669		)	1,543			(2,126		)
Foreign currency translation adjustments, net of hedges:
Net unrealized gains (losses) arising during the period (2)	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Net change	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Other comprehensive income (loss)	$	61,909		$	(22,143	)	$	39,766		$	(18,015	)	$	3,631	$	(14,384	)	$	9,084		$	1,543		$	10,627

(1) For the years ended December 31, 2019, 2018 and 2017, pre-tax amounts were reported in Net gains on sales of AFS investment securities on the Consolidated Statement of Income.

(2) The tax effects on foreign currency translation adjustments represent the cumulative net deferred tax liabilities since inception on net investment hedges that were recorded during the year ended December 31, 2019.

151

Note 20 — Regulatory Requirements and Matters

Capital Adequacy — The Company and the Bank are subject to regulatory capital adequacy requirements administered by the federal banking agencies. The Bank is a member bank of the Federal Reserve System and is primarily regulated by the Federal Reserve. The Company and the Bank are required to comply with the Basel III Capital Rules adopted by the federal banking agencies. Both the Company and the Bank are standardized approaches institutions under Basel III Capital Rules. The Basel III Capital Rule requires that banking organizations maintain a minimum Common Equity Tier 1 (“CET1”) capital ratio of 4.5%, a Tier 1 capital ratio of 6.0%, and a total capital ratio of 8.0% to be considered adequately capitalized. Failure to meet minimum capital requirements can result in certain mandatory actions and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s Consolidated Financial Statements. The Basel III Capital Rules also requires the Company and the Bank to maintain a capital conservation buffer of 2.5% above the minimum capital ratios in order to absorb losses during periods of economic stress, effective January 1, 2019. Banking institutions with a ratio of CET1 to risk-weighted assets above the minimum but below the capital conservation buffer will face constraints on dividends, equity repurchases and compensation based on the amount of the shortfall.

The FDIC Improvement Act of 1991 requires that the federal regulatory agencies adopt regulations defining capital categories for banks: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. Consistent with the Basel III Capital Rules, the capital categories were augmented by including the CET1 capital measure, and revised risk-based capital measures to reflect the rule changes to the minimum risk-based capital ratios.

As of December 31, 2019 and 2018, the Company and the Bank were both categorized as well capitalized based on applicable U.S. regulatory capital ratio requirements in accordance with Basel III standardized approaches, as set forth in the table below. The Company believes that no changes in conditions or events have occurred since December 31, 2019, which would result in changes that would cause the Company or the Bank to fall below the well capitalized level. The following table presents the regulatory capital information of the Company and the Bank as of December 31, 2019 and 2018:

($ in thousands)	Basel III
	December 31, 2019								December 31, 2018
	Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement		Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement
	Amount		Ratio		Ratio		Ratio		Amount		Ratio		Ratio		Ratio
Total capital (to risk-weighted assets)
Company	$	5,064,037	14.4	%	10.50	%	10.0	%	$	4,438,730	13.7	%	9.88	%	10.0	%
East West Bank	$	4,886,237	13.9	%	10.50	%	10.0	%	$	4,268,616	13.1	%	9.88	%	10.0	%
Tier 1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	8.50	%	8.0	%	$	3,966,842	12.2	%	7.88	%	8.0	%
East West Bank	$	4,516,792	12.9	%	8.50	%	8.0	%	$	3,944,728	12.1	%	7.88	%	8.0	%
CET1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	7.00	%	6.5	%	$	3,966,842	12.2	%	6.38	%	6.5	%
East West Bank	$	4,516,792	12.9	%	7.00	%	6.5	%	$	3,944,728	12.1	%	6.38	%	6.5	%
Tier 1 leverage capital (to adjusted average assets)
Company (1)	$	4,546,592	10.3	%	4.0	%	N/A		$	3,966,842	9.9	%	4.0	%	N/A
East West Bank	$	4,516,792	10.3	%	4.0	%	5.0	%	$	3,944,728	9.8	%	4.0	%	5.0	%
Risk-weighted assets
Company	$	35,136,427	N/A		N/A		N/A		$	32,497,296	N/A		N/A		N/A
East West Bank	$	35,127,920	N/A		N/A		N/A		$	32,477,002	N/A		N/A		N/A
Adjusted quarterly average total assets (2)
Company	$	44,449,802	N/A		N/A		N/A		$	40,636,402	N/A		N/A		N/A
East West Bank	$	44,419,308	N/A		N/A		N/A		$	40,611,215	N/A		N/A		N/A

(1) The Tier 1 leverage capital well-capitalized requirement applies to the Bank only since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company.

(2) Reflects adjusted average total assets for the years ended December 31, 2019 and 2018.

(3) The CET1, Tier 1, and total capital minimum ratios include a fully phased-in capital conservation buffer of 2.5% and a transition capital conservation buffer of 1.875% for the years ended December 31, 2019 and 2018, respectively.

N/A — Not applicable.

152

Reserve Requirement — The Bank is required to maintain a percentage of its deposits as reserves at the FRB. The daily average reserve requirement was approximately $829.0 million and $707.3 million as of December 31, 2019 and 2018, respectively.

Note 21 — Business Segments

The Company organizes its operations into three reportable operating segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. These segments are defined by the type of customers and the related products and services provided, and reflect how financial information is currently evaluated by management. Operating segment results are based on the Company’s internal management reporting process, which reflects assignments and allocations of certain balance sheet and income statement items. The information presented is not indicative of how the segments would perform if they operated as independent entities due to the interrelationships among the segments.

The Consumer and Business Banking segment primarily provides financial products and services to consumer and commercial customers through the Company’s domestic branch network. This segment offers consumer and commercial deposits, mortgage and home equity loans, and other products and services. It also originates commercial loans for small and medium-sized enterprises through the Company’s branch network. Other products and services provided by this segment include wealth management, cash management and foreign exchange services.

The Commercial Banking segment primarily generates commercial loans and deposits. Commercial loan products include commercial business loans and lines of credit, trade finance loans and letters of credit, CRE loans, construction lending, affordable housing loans and letters of credit, asset-based lending, and equipment financings. Commercial deposit products and other financial services include cash management, foreign exchange services, and interest rate and commodity risk hedging.

The remaining centralized functions, including the corporate treasury activities of the Company and eliminations of inter-segment amounts, have been aggregated and included in the Other segment, which provides broad administrative support to the two core segments; the Consumer and Business Banking and the Commercial Banking segments.

The Company utilizes an internal reporting process to measure the performance of the three operating segments within the Company. The internal reporting process derives operating segment results by utilizing allocation methodologies for revenue and expenses. Net interest income of each segment represents the difference between actual interest earned on assets and interest incurred on liabilities of the segment, adjusted for funding charges or credits through the Company’s internal funds transfer pricing (“FTP”) process. Noninterest income and noninterest expense directly attributable to a business segment are assigned to that segment. Indirect costs, including technology-related costs and corporate overhead, are allocated based on a segment’s estimated usage using factors, including but not limited to, full-time equivalent employees, net interest income, and loan and deposit volume. Charge-offs are allocated to the segment directly associated with the loans charged off, and the remaining provision for credit losses is allocated to each segment based on loan volume. The Company’s internal reporting process utilizes a full-allocation methodology. Under this methodology, corporate expenses and indirect expenses incurred by the Other segment are allocated to the Consumer and Business Banking and the Commercial Banking segments, except certain corporate treasury-related expenses and insignificant unallocated expenses.

The corporate treasury function within the Other segment is responsible for liquidity and interest rate management of the Company. The Company’s internal FTP process is also managed by the corporate treasury function within the Other segment. The process is formulated with the goal of encouraging loan and deposit growth that is consistent with the Company’s overall profitability objectives, as well as to provide a reasonable and consistent basis for the measurement of its business segments’ net interest margins and profitability. The FTP process charges a cost to fund loans (“FTP charges for loans”) and allocates credits for funds provided from deposits (“FTP credits for deposits”) using internal FTP rates. FTP charges for loans are determined based on matched cost of funds that are tied to the pricing and term characteristic of the loans. FTP credits for deposits are based on matched funding credit rates that are tied to the implied or stated maturity of the deposits. These FTP credits reflect the long-term value to be generated by the deposits. The net spread between the total internal FTP charges and credits is recorded as part of net interest income in the Other segment. The FTP process transfers the corporate interest rate risk exposure to the treasury function within the Other segment, where such exposures are centrally managed.

153

The Company’s internal FTP assumptions and methodologies are reviewed at least annually to ensure that the process is reflective of current market conditions. During the first quarter of 2019, the Company enhanced its segment cost allocation methodology related to stock compensation expense and bonus accrual. Effective the first quarter of 2019, stock compensation expense is allocated to all three segments, whereas it was previously recorded in the Other segment as a corporate expense. In addition, bonus expense is now allocated at a more granular level at the segment level at the time of accrual. For comparability, segment information for the fiscal years ended December 31, 2018 and 2017 have been restated to conform to the current presentation. During the third quarter of 2019, the Company enhanced its FTP methodology related to deposits by setting a minimum floor rate for the FTP credits paid for deposits in consideration of the flattened and inverted yield curve. This methodology has been retrospectively applied to segment financial results throughout the year of 2019. This change in FTP methodology related to deposits had no impact on 2018 and 2017 segment results.

The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2019
Net interest income before provision for credit losses	$	696,551	$	651,413	$	119,849	$	1,467,813
Provision for credit losses	14,178		84,507		—		98,685
Noninterest income	57,920		134,622		16,835		209,377
Noninterest expense	343,001		263,064		128,523		734,588
Segment income before income taxes	397,292		438,464		8,161		843,917
Segment net income	$	284,161	$	313,833	$	76,041	$	674,035
As of December 31, 2019
Segment assets	$	11,520,586	$	25,501,534	$	7,173,976	$	44,196,096

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2018
Net interest income before provision for credit losses	$	727,215	$	605,650	$	53,643		$	1,386,508
Provision for credit losses	9,364		54,891		—			64,255
Noninterest income	85,607		110,287		15,015			210,909
Noninterest expense	341,396		237,520		135,550			714,466
Segment income (loss) before income taxes	462,062		423,526		(66,892		)	818,696
Segment net income	$	330,683	$	303,553	$	69,465		$	703,701
As of December 31, 2018
Segment assets	$	10,587,621	$	23,761,469	$	6,693,266		$	41,042,356

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2017
Net interest income before provision for credit losses	$	590,821	$	553,817	$	40,431		$	1,185,069
Provision for credit losses	1,812		44,454		—			46,266
Noninterest income	54,451		110,089		93,208			257,748
Noninterest expense	323,318		200,153		137,980			661,451
Segment income (loss) before income taxes	320,142		419,299		(4,341		)	735,100
Segment net income	$	187,571	$	246,404	$	71,649		$	505,624
As of December 31, 2017
Segment assets	$	9,316,587	$	21,431,472	$	6,373,504		$	37,121,563

154

Note 22 — Parent Company Condensed Financial Statements

The principal sources of East West’s income (on a Parent Company-only basis) are dividends from the Bank. In addition to dividend restrictions set forth in statutes and regulations, the banking agencies have the authority to prohibit or to limit the Bank from paying dividends, if, in the banking regulator’s opinion, payment of a dividend would constitute an unsafe or unsound practice in light of the financial condition of the Bank. The Bank declared $190.0 million, $160.0 million and $255.0 million of dividends to East West during the years ended December 31, 2019, 2018 and 2017, respectively.

The following tables present the Parent Company-only condensed financial statements:

CONDENSED BALANCE SHEET

($ in thousands, except shares)	December 31,
	2019			2018
ASSETS
Cash and cash equivalents due from subsidiary bank	$	166,131		$	149,411
Investments in subsidiaries:
Bank	4,987,666			4,401,860
Nonbank	5,630			3,662
Investments in tax credit investments, net	11,637			23,259
Goodwill	150			—
Other assets	3,941			6,487
TOTAL	$	5,175,155		$	4,584,679
LIABILITIES
Long-term debt	$	147,101		$	146,835
Other liabilities	10,437			13,870
Total liabilities	157,538			160,705
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167			166
Additional paid-in capital	1,826,345			1,789,811
Retained earnings	3,689,377			3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864		)	(467,961		)
AOCI, net of tax	(18,408		)	(58,174		)
Total stockholders’ equity	5,017,617			4,423,974
TOTAL	$	5,175,155		$	4,584,679

155

CONDENSED STATEMENT OF INCOME

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Dividends from subsidiaries:
Bank	$	190,000	$	160,000	$	255,000
Nonbank	189		175		4,118
Net gains on sales of AFS investment securities	—		—		326
Other income	425		2		395
Total income	190,614		160,177		259,839
Interest expense on long-term debt	6,482		6,488		5,429
Compensation and employee benefits	5,479		5,559		5,065
Amortization of tax credit and other investments	8,437		413		5,908
Other expense	1,487		1,490		1,257
Total expense	21,885		13,950		17,659
Income before income tax benefit and equity in undistributed income of subsidiaries	168,729		146,227		242,180
Income tax benefit	6,737		3,404		18,182
Undistributed earnings of subsidiaries, primarily bank	498,569		554,070		245,262
Net income	$	674,035	$	703,701	$	505,624

156

CONDENSED STATEMENT OF CASH FLOWS

($ in thousands)	Year Ended December 31,
	2019			2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	674,035		$	703,701		$	505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiaries, principally bank	(498,569		)	(554,070		)	(245,262		)
Amortization expenses	8,703			671			6,158
Deferred income tax (benefit) expense	(10,132		)	3,517			940
Gains on sales of AFS investment securities	—			—			(326		)
Net change in other assets	10,246			(595		)	(3,341		)
Net change in other liabilities	(18		)	(45		)	(560		)
Net cash provided by operating activities	184,265			153,179			263,233
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments	(292		)	(1,049		)	(11,591		)
Proceeds from distributions received from equity method investees	2,577			1,491			1,814
Investments in and advances to nonbank subsidiaries	(3,314		)	—			—
Other investing activities	(157		)	—			—
AFS investment securities:
Proceeds from sales	—			—			18,326
Purchases	—			—			(9,000		)
Net cash (used in) provided by investing activities	(1,186		)	442			(451		)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt	—			(25,000		)	(15,000		)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,383			2,846			2,280
Stocks tendered for payment of withholding taxes	(14,635		)	(15,634		)	(12,940		)
Cash dividends paid	(155,107		)	(125,988		)	(116,820		)
Net cash used in financing activities	(166,359		)	(163,776		)	(142,480		)
Net increase (decrease) in cash and cash equivalents	16,720			(10,155		)	120,302
Cash and cash equivalents, beginning of year	149,411			159,566			39,264
Cash and cash equivalents, end of year	$	166,131		$	149,411		$	159,566

157

Note 23 — Quarterly Financial Information (Unaudited)

($ and shares in thousands, except per share data)	2019 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	467,233	$	476,912	$	474,844	$	463,311
Interest expense	99,014		107,105		107,518		100,850
Net interest income before provision for credit losses	368,219		369,807		367,326		362,461
Provision for credit losses	18,577		38,284		19,245		22,579
Net interest income after provision for credit losses	349,642		331,523		348,081		339,882
Noninterest income	63,013		51,474		52,759		42,131
Noninterest expense	193,373		176,630		177,663		186,922
Income before income taxes	219,282		206,367		223,177		195,091
Income tax expense	31,067		34,951		72,797		31,067
Net income	$	188,215	$	171,416	$	150,380	$	164,024
EPS
- Basic	$	1.29	$	1.18	$	1.03	$	1.13
- Diluted	$	1.29	$	1.17	$	1.03	$	1.12
Weighted-average number of shares outstanding
- Basic	145,624		145,559		145,546		145,256
- Diluted	146,318		146,120		146,052		145,921

($ and shares in thousands, except per share data)	2018 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	457,334	$	422,185	$	400,311	$	371,873
Interest expense	87,918		73,465		58,632		45,180
Net interest income before provision for credit losses	369,416		348,720		341,679		326,693
Provision for credit losses	17,959		10,542		15,536		20,218
Net interest income after provision for credit losses	351,457		338,178		326,143		306,475
Noninterest income	41,695		46,502		48,268		74,444
Noninterest expense	188,097		179,815		177,419		169,135
Income before income taxes	205,055		204,865		196,992		211,784
Income tax expense	32,037		33,563		24,643		24,752
Net income	$	173,018	$	171,302	$	172,349	$	187,032
EPS
- Basic	$	1.19	$	1.18	$	1.19	$	1.29
- Diluted	$	1.18	$	1.17	$	1.18	$	1.28
Weighted-average number of shares outstanding
- Basic	144,960		144,921		144,899		144,664
- Diluted	146,133		146,173		146,091		145,939

Note 24 — Subsequent Events

On January 23, 2020, the Company’s Board of Directors declared first quarter 2020 cash dividends for the Company’s common stock. The common stock cash dividend of $0.275 per share was paid on February 14, 2020 to stockholders of record as of February 3, 2020.

158

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.  CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

As of December 31, 2019, pursuant to Rule 13a-15(b) of the Exchange Act, the Company conducted an evaluation, under the supervision and with the participation of the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act). Based upon that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of December 31, 2019.

The Company’s disclosure controls and procedures are designed to ensure that information required to be disclosed by the Company in the reports that the Company files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the SEC. The Company’s disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Company in the reports that the Company files under the Exchange Act is accumulated and communicated to the Company’s management, including the Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Management’s Annual Report on Internal Control over Financial Reporting

The Company’s management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act). The Company’s internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company’s financial statements for external purposes in accordance with U.S. GAAP.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. In addition, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with policies or procedures may deteriorate.

Management evaluated the effectiveness of the Company’s internal control over financial reporting as of December 31, 2019 using the criteria set forth in Internal Control — Integrated Framework 2013 issued by the Committee of Sponsoring Organization of the Treadway Commission. Based on this evaluation, management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2019.

Changes in Internal Control over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting during the year ended December 31, 2019, that have materially affected or are reasonably likely to materially affect the Company’s internal control over financial reporting.

Report of Independent Registered Public Accounting Firm

KPMG LLP, the independent registered public accounting firm that audited the Company’s Consolidated Financial Statements, issued an audit report on the effectiveness of internal control over financial reporting as of December 31, 2019. The audit report is presented on the following page.

159

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and Board of Directors

East West Bancorp, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited East West Bancorp, Inc. and subsidiaries (the Company) internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2019 and 2018, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2019, and the related notes (collectively, the consolidated financial statements), and our report dated February 27, 2020 expressed an unqualified opinion on those consolidated financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/KPMG LLP

Los Angeles, California

February 27, 2020

160

ITEM 9B.  OTHER INFORMATION

None.

PART III

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Executive Officers of the Registrant

The following table presents the Company’s executive officers’ names, ages, positions and offices, and business experience during the last five years as of February 27, 2020. There is no family relationship between any of the Company’s executive officers or directors. Each officer is appointed by the Board of Directors of the Company or the Bank and serves at their pleasure.

Name	Age (1)	Positions and Offices, and Business Experience
Dominic Ng	61	Chairman and Chief Executive Officer of the Company and the Bank since 1992.
Douglas P. Krause	63	Executive Vice President, General Counsel and Secretary of the Company and the Bank since 1996.
Irene H. Oh	42	Executive Vice President and Chief Financial Officer of the Company and the Bank since 2010.
Andy Yen	62	Executive Vice President and Head of International and Commercial Banking since 2013.
Catherine Zhou	46	Executive Vice President and Head of Consumer and Digital Banking since 2017.

(1) As of February 27, 2020.

Each executive officer has held executive positions with East West Bank for at least five years, except that Ms. Zhou joined East West Bank in 2017 and assumed her current position in October 2017. Previously, she had served as a partner at PricewaterhouseCoopers LLP (“PwC”) since 2013, and led the digital platform for PwC’s financial services industry.

Code of Conduct

The Company has adopted a code of conduct that applies to its principal executive officer, principal financial and accounting officer, controller, and persons performing similar functions. The code of conduct is posted on the Company’s website at www.eastwestbank.com/govdocs. Any amendments to, or waivers from, the Company’s Code of Conduct will be disclosed on the Company’s website at http://investor.eastwestbank.com.

Additional Information

The other information required by this item will be set forth in the following sections of the Company’s definitive proxy statement for its 2020 Annual Meeting of Shareholders (the “2020 Proxy Statement”), which will be filed with the SEC pursuant to Regulation 14A within 120 days of the Company’s fiscal year ended December 31, 2019 and this information is incorporated herein by reference:

• Summary Information About Director Nominees

• Board of Directors and Nominees

• Director Nominee Qualifications and Experience

• Director Independence, Financial Experts and Risk Management Experience

• Board Leadership Structure

• Board Meetings and Committees

ITEM 11.  EXECUTIVE COMPENSATION

Information regarding the Company’s executive compensation is included in the 2020 Proxy Statement in the following sections and these sections are incorporated herein by reference:

• Director Compensation

• Compensation Discussion and Analysis

161

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS    

Information concerning security ownership of certain beneficial owners and management not otherwise included herein is incorporated by reference to the 2020 Proxy Statement under the heading “Stock Ownership of Principal Stockholders, Directors and Management.”

Securities Authorized for Issuance under Equity Compensation Plans

The following table sets forth the total number of shares available for issuance under the Company’s employee equity compensation plans as of December 31, 2019:

Plan Category	Number of Securities to be Issued upon Exercise of Outstanding Options	Weighted-Average Exercise Price of Outstanding Options		Number of Securities Remaining Available for Future Issuance under Equity Compensation Plans
Equity compensation plans approved by security holders	—	$	—	3,482,580	(1)
Equity compensation plans not approved by security holders	—	—		—
Total	—	$	—	3,482,580

(1) Represents future shares available under the shareholder-approved 2016 Stock Incentive Plan effective May 24, 2016.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE

Information regarding certain relationships and related transactions is included in the 2020 Proxy Statement in the following sections, which are incorporated herein by reference:

• Director Independence, Financial Experts and Risk Management Experience

• Certain Relationships and Related Transactions

ITEM 14.  PRINCIPAL ACCOUNTANT FEES AND SERVICES

Information regarding principal accountant fees and services is included in the “Ratification of Auditors” section of the 2020 Proxy Statement, which is incorporated herein by reference.

162

PART IV

ITEM 15.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(1) Financial Statements

The following financial statements of East West Bancorp, Inc. and its subsidiaries, and the auditor’s report thereon are filed as part of this report under Item 8. Financial Statements and Supplementary Data:

	Page
Report of Independent Registered Public Accounting Firm	80
Consolidated Balance Sheet as of December 31, 2019 and 2018	82
Consolidated Statement of Income for the Years Ended December 31, 2019, 2018 and 2017	83
Consolidated Statement of Comprehensive Income for the Years Ended December 31, 2019, 2018 and 2017	84
Consolidated Statement of Changes in Stockholders’ Equity for the Years Ended December 31, 2019, 2018 and 2017	85
Consolidated Statement of Cash Flows for the Years Ended December 31, 2019, 2018 and 2017	86
Notes to Consolidated Financial Statements	88

(2) Financial Statement Schedules

All financial statement schedules for East West Bancorp, Inc. and its subsidiaries have been included on the Consolidated Financial Statements or the related footnotes, or are either inapplicable or not required.

(3) Exhibits

A list of exhibits to this Form 10-K is set forth below.

Exhibit No.	Exhibit Description
3.1	Certificate of Incorporation of the Registrant [Incorporated by reference to Exhibit 3(i) from Registrant’s Registration Statement on Form S-4/A filed with the Commission on November 13, 1998 (File No. 333-63605).]
3.1.1	Certificate of Amendment to Certificate of Incorporation of the Registrant [Incorporated by reference to Exhibit 3(i).1 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2002 filed with the Commission on March 28, 2003 (File No. 000-24939).]
3.1.2	Amendment to Certificate of Incorporation to Increase Authorized Shares of the Registrant [Incorporated by reference from Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on April 15, 2005 (File No. 000-24939).]
3.1.3	Certificate of Amendment to Certificate of Incorporation of the Registrant [Incorporated by reference to Exhibit A from the Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on April 23, 2008 (File No. 000-24939).]
3.2	Amended and Restated Bylaws of the Registrant dated January 29, 2013 [Incorporated by reference to Exhibit 3.10 from Registrant’s Current Report on Form 8-K, filed with the Commission on January 30, 2013 (File No. 000-24939).]
3.3	Certificate of Designations of 8.00% Non-Cumulative Perpetual Convertible Preferred Stock, Series A of the Registrant [Incorporated by reference to Exhibit 3.1 from Registrant’s Current Report on Form 8-K, filed with the Commission on April 30, 2008 (File No. 000-24939).]
4.1	Specimen Common Stock Certificate of Registrant [Incorporated by reference to Exhibit 4.1 from Registrant’s Registration Statement on Form S-4/A filed with the Commission on November 5, 1998 (File No. 333-63605).]
4.2	Form of Certificate of the Registrant’s 8.00% Non-Cumulative Perpetual Convertible Preferred Stock, Series A [Incorporated by reference to Exhibit 4.1 from Registrant’s Current Report on Form 8-K, filed with the Commission on April 30, 2008 (File No. 000-24939).]
4.3	Description of Securities. Filed herewith.
10.1.1	Employment Agreement – Dominic Ng* [Incorporated by reference to Exhibit 10.1 from Registrant’s Registration Statement on Form S-4 filed with the Commission on September 17, 1998 (File No. 333-63605).]
10.1.2	Amendment to Employment Agreement – Dominic Ng* [Incorporated by reference to Exhibit 10.1.2 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Commission on February 27, 2017 (File No. 000-24939).]

163

10.1.3	Amendment to Employment Agreement – Dominic Ng* [Incorporated by reference to Exhibit 10.1 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018 filed with the Commission on May 8, 2018 (File No. 000-24939).]
10.1.4	Amendment to Employment Agreement – Dominic Ng* [Incorporated by reference to Exhibit 10.1 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2019 filed with the Commission on May 8, 2019 (File No. 000-24939).]
10.2.1	Employment Agreement – Douglas P. Krause* [Incorporated by reference to Exhibit 10.5 from Registrant’s Registration Statement on Form S-4 filed with the Commission on September 17, 1998 (File No. 333-63605).]
10.2.2	Amendment to Employment Agreement – Douglas P. Krause* [Incorporated by reference to Exhibit 10.2.2 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Commission on February 27, 2017 (File No. 000-24939).]
10.2.3	Amendment to Employment Agreement – Douglas P. Krause* [Incorporated by reference to Exhibit 10.2 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018 filed with the Commission on May 8, 2018 (File No. 000-24939).]
10.2.4	Amendment to Employment Agreement – Douglas P. Krause* [Incorporated by reference to Exhibit 10.2 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2019 filed with the Commission on May 8, 2019 (File No. 000-24939).]
10.3	Employment Agreement – Andy Yen* [Incorporated by reference to Exhibit 10.3 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2015 filed with the Commission on February 26, 2016 (File No. 000-24939).]
10.4.1	Employment Agreement – Irene H. Oh* [Incorporated by reference to Exhibit 10.1 from Registrant’s Current Report on Form 8-K filed with the Commission on December 22, 2016 (File No. 000-24939).]
10.4.2	Amendment to Employment Agreement – Irene H. Oh* [Incorporated by reference to Exhibit 10.5.2 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018 filed with the Commission on February 27, 2019 (File No. 000-24939).]
10.5.1	Employment Agreement – Catherine Zhou* [Incorporated by reference to Exhibit 10.3 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2019 filed with the Commission on May 8, 2019 (File No. 000-24939).]
10.5.2	Amendment to Employment Agreement – Catherine Zhou* [Incorporated by reference to Exhibit 10.1 from Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2019 filed with the Commission on November 8, 2019 (File No. 000-24939).]
10.6.1	Agreement Regarding Grants of Incentive Shares and Clawbacks – Dominic Ng* [Incorporated by reference to Exhibit 10.3 from Registrant’s Current Report on Form 8-K filed with the Commission on April 10, 2012 (File No. 000-24939).]
10.6.2	Agreement Regarding Grants of Incentive Shares and Clawbacks – Douglas P. Krause* [Incorporated by reference to Exhibit 10.3.2 from Registrant’s Current Report on Form 8-K filed with the Commission on April 10, 2012 (File No. 000-24939).]
10.6.3	Agreement Regarding Grants of Incentive Shares and Clawbacks – Irene H. Oh* [Incorporated by reference to Exhibit 10.3.3 from Registrant’s Current Report on Form 8-K filed with the Commission on April 10, 2012 (File No. 000-24939).]
10.7.1	East West Bancorp, Inc. 1998 Stock Incentive Plan and Forms of Agreements* [Incorporated by reference to Exhibit 10.6 from Registrant’s Registration Statement on Form S-4/A filed with the Commission on November 5, 1998 (File No. 333-63605).]
10.7.2	East West Bancorp, Inc. 1998 Stock Incentive Plan, as amended* [Incorporated by reference to Exhibit A from Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on April 14, 2011 (File No. 000-24939).]
10.7.3	East West Bancorp, Inc. 2016 Stock Incentive Plan, as amended* [Incorporated by reference to Exhibit A from the Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on April 21, 2016 (File No. 000-24939).]
10.7.4	East West Bancorp, Inc. 1998 Non-Qualified Stock Option Program for Employees and Independent Contractors* [Incorporated by reference to Exhibit 10.2 from Registrant’s Current Report on Form 8-K filed with the Commission on March 9, 2005 (File No. 000-24939).]
10.7.5	East West Bancorp, Inc. 2017 Performance-Based Bonus Plan, as amended* [Incorporated by reference to Exhibit A from Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on April 19, 2017 (File No.000-24939).]
10.7.6	East West Bancorp, Inc. 1999 Spirit of Ownership Restricted Stock Program* [Incorporated by reference to Exhibit 10.4 from Registrant’s Current Report on Form 8-K filed with the Commission on March 9, 2005 (File No. 000-24939).]
10.7.7	East West Bancorp, Inc. 2003 Directors’ Restricted Stock Program* [Incorporated by reference to Exhibit 10.5 from Registrant’s Current Report on Form 8-K filed with the Commission on March 9, 2005 (File No. 000-24939).]

164

10.8	East West Bancorp, Inc. 1998 Employee Stock Purchase Plan* [Incorporated by reference to Exhibit 10.7 from Registrant’s Registration Statement on Form S-4 filed with the Commission on September 17, 1998 (File No. 333-63605).]
10.9	Form of Executive Bonus Agreement* [Incorporated by reference to Exhibit 10.11 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2004 filed with the Commission on March 11, 2005 (File No. 000-24939).]
18	Preferability letter from KPMG LLP regarding a change in accounting method dated February 27, 2019 [Incorporated by reference to Exhibit 18 from Registrant’s Annual Report on Form 10-K for the year ended December 31, 2018 filed with the Commission on February 27, 2019 (File No. 000-24939).]
21.1	Subsidiaries of the Registrant. Filed herewith.
23.1	Consent of Independent Registered Public Accounting Firm KPMG LLP. Filed herewith.
31.1	Chief Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
31.2	Chief Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
32.1	Chief Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Furnished herewith.
32.2	Chief Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Furnished herewith.
101.INS	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101.SCH	XBRL Taxonomy Extension Schema Document. Filed herewith.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document. Filed herewith.
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document. Filed herewith.
101.LAB	XBRL Taxonomy Extension Label Linkbase Document. Filed herewith.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document. Filed herewith.
104	Cover Page Interactive Data (formatted as Inline XBRL and contained in Exhibit 101 filed herewith). Filed herewith.
* Denotes management contract or compensatory plan or arrangement.

ITEM 16.  FORM 10-K SUMMARY

Not applicable.

165

GLOSSARY OF ACRONYMS

ACL	Allowance for credit losses	FRB	Federal Reserve Bank of San Francisco
ADC	Acquisition, development and construction	FTP	Funds transfer pricing
AFS	Available-for-sale	GAAP	United States Generally Accepted Accounting Principles
ALCO	Asset/Liability Committee	GLBA	Gramm-Leach-Bliley Act of 1999
AML	Anti-money laundering	HELOC	Home equity line of credit
AOCI	Accumulated Other Comprehensive Income (Loss)	IRS	Internal Revenue Service
ARRC	Alternative Reference Rates Committee	KBW	Keefe, Bruyette and Woods
ASC	Accounting Standards Codification	KRX	Keefe, Bruyette and Woods NASDAQ Regional Banking Index
ASU	Accounting Standards Update	LCH	London Clearing House
BHC Act	Bank Holding Company Act of 1956, as amended	LIBOR	London Interbank Offered Rate
BSA	Bank Secrecy Act	MD&A	Management's Discussion and Analysis of Financial Condition and Results of Operations
C&I	Commercial and industrial	MMBTU	Million British Thermal Unit
CAP	Compliance Assurance Process	Moody's	Moody's Investors Service
CECL	Current expected credit loss	MOU	Memorandum of understanding
CET1	Common Equity Tier 1	NAV	Net asset value
CFPB	Consumer Financial Protection Bureau	NOL	Net operating losses
CLO	Collateralized loan obligation	OFAC	Office of Foreign Assets Control
CME	Chicago Mercantile Exchange	OIS	Overnight Index Swap
CRA	Community Reinvestment Act	OREO	Other real estate owned
CRE	Commercial real estate	OTTI	Other-than-temporary impairment
DBO	California Department of Business Oversight	PCA	Prompt Corrective Action
DCB	Desert Community Bank	PCI	Purchased credit-impaired
DIF	Deposit Insurance Fund	PwC	PricewaterhouseCoopers LLP
DRR	Designated reserve ratio	RMB	Chinese Renminbi
EGRRCPA	Economic Growth, Regulatory Relief, and Consumer Protection Act	ROA	Return on average assets
EPS	Earnings per share	ROE	Return on average equity
ERM	Enterprise risk management	RPA	Credit Risk Participation Agreement
EVE	Economic value of equity	RSU	Restricted stock unit
EWIS	East West Insurance Services, Inc.	S&P	Standard and Poor's
FASB	Financial Accounting Standards Board	SBLC	Standby letters of credit
FBI	Federal Bureau of Investigation	SEC	U.S. Securities and Exchange Commission
FCA	Financial Conduct Authority	SERP	Supplemental Executive Retirement Plan
FDIA	Federal Deposit Insurance Act	SOFR	Secured Overnight Financing Rate
FDIC	Federal Deposit Insurance Corporation	TDR	Troubled debt restructuring
FHLB	Federal Home Loan Bank	U.S.	United States
FinCEN	Financial Crimes Enforcement Network	USD	U.S. Dollar
FITCH	Fitch Ratings	VIE	Variable interest entities

166

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated:	February 27, 2020
		EAST WEST BANCORP, INC. (Registrant)
		By	/s/ DOMINIC NG
			Dominic Ng
			Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ DOMINIC NG	Chairman, Chief Executive Officer and Director (Principal Executive Officer)	February 27, 2020
Dominic Ng
/s/ IRENE H. OH	Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)	February 27, 2020
Irene H. Oh
/s/ MOLLY CAMPBELL	Director	February 27, 2020
Molly Campbell
/s/ IRIS S. CHAN	Director	February 27, 2020
Iris S. Chan
/s/ ARCHANA DESKUS	Director	February 27, 2020
Archana Deskus
/s/ RUDOLPH I. ESTRADA	Lead Director	February 27, 2020
Rudolph I. Estrada
/s/ PAUL H. IRVING	Director	February 27, 2020
Paul H. Irving
/s/ HERMAN Y. LI	Director	February 27, 2020
Herman Y. Li
/s/ JACK C. LIU	Director	February 27, 2020
Jack C. Liu
/s/ LESTER M. SUSSMAN	Director	February 27, 2020
Lester M. Sussman

167

EX-4.3

Exhibit 4.3

DESCRIPTION OF REGISTRANT'S SECURITIES

REGISTERED PURSUANT TO SECTION 12 OF THE

SECURITIES EXCHANGE ACT OF 1934

As of December 31, 2019, East West Bancorp, Inc. (the “Company,” “we,” “our” and “us”), has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: common stock, par value of $0.001 per share (“Common Stock”).

The following is a general summary of the terms of our Common Stock and does not purport to be complete. The description of our Common Stock should be read together with our certificate of incorporation, as amended, and amended and restated bylaws, each of which are incorporated by reference as an exhibit to the Annual Report on Form 10-K of which this Exhibit 4.3 is a part. We encourage you to carefully read our certificate of incorporation and restated bylaws and the applicable provisions of California and federal law and regulations and Delaware corporate lawfor additional information.

Description of Common Stock

Our Common Stock

We have authorized 200,000,000 shares of Common Stock. As of January 31, 2020, approximately 145,625,565 shares of Common Stock were outstanding. The outstanding shares of our Common Stock are fully paid and non-assessable.

Dividend Rights

Under our certificate of incorporation, as amended, holders of our Common Stock are entitled to receive any dividends our board of directors may declare on the Common Stock, subject to the prior rights of the holders of our preferred stock (if any). The board of directors may declare dividends from funds legally available for this purpose.

Preemptive and Conversion Rights

Holders of Common Stock have no preemptive or conversion rights or other subscription rights.

Redemption and Sinking Fund Rights

Our Common Stock is not subject to redemption and does not have any sinking fund provisions.

Voting Rights

Our Common Stock has one vote per share. The holders of our Common Stock are entitled to vote on all matters to be voted on by holders of our Common Stock. Our certificate of incorporation, as amended, do not provide for cumulative voting. This could prevent directors from being elected by a relatively small group of stockholders.

Liquidation Rights

After provision for payment of creditors and after payment of any liquidation preferences to holders of the preferred stock, if any, in the event that we liquidate, dissolve or are wound up, the holders of our Common Stock will be entitled to receive on a pro rata basis all of our remaining assets.

Anti-Takeover Effects of Delaware Law and Our Certificate of Incorporation and Amended and Restated Bylaws

The following discussion is a summary of certain provisions of California and federal law and regulations and Delaware corporate law, as well as our certificate of incorporation, as amended, and amended and restated bylaws, which may be deemed to have “anti-takeover” effects. It is possible that these provisions could make it more difficult for a third party to acquire control of the Company or could have the effect of discouraging a third party from attempting to acquire control of the Company. The

description of these provisions is necessarily general and reference should be made to the actual law and regulations and to our certificate of incorporation and bylaws.

Business Combinations

Our certificate of incorporation, as amended, requires the approval of the holders of (i) at least two-thirds of our outstanding shares of voting stock and (ii) a majority of our outstanding shares of voting stock other than shares held by an “Interested Stockholder” (as defined therein) or any Affiliate or Associate (each as defined therein) thereof to approve certain “Business Combinations” (as defined therein) involving an Interested Stockholder, except in cases where the proposed transaction has been approved, among others, in advance by a majority of the Disinterested Directors (as defined therein), and by an affirmative vote of our stockholders, if such vote is required by law.

As a Delaware corporation, we are subject to the provisions of Section 203 of the General Corporation Law of the State of Delaware, which prohibits a public Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years after the date of the transaction in which the person became an interested stockholder, unless:

• prior to that time, either the business combination or the transaction that resulted in the stockholder becoming an interested stockholder is approved by the board of directors of the corporation;

• upon consummation of the transaction that resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the outstanding voting stock of the corporation, excluding for this purpose shares owned by persons who are directors and also officers of the corporation and by specified employee benefit plans; or

• at or after such time, the business combination is approved by the board of directors of the corporation and by the affirmative vote, and not by written consent, of at least 66 2/3% of the outstanding voting stock that is not owned by the interested stockholder.

For the purposes of Section 203, a “business combination” is broadly defined to include:

• any merger or consolidation involving the corporation and the interested stockholder;

• any sale, transfer, pledge or other disposition of 10% or more of the assets of the corporation involving the interested stockholder;

• any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested stockholder, subject to limited exceptions;

• any transaction involving the corporation that has the effect of increasing the proportionate share of the stock of any class or series of the corporation beneficially owned by the interested stockholder; or

• the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the corporation.

An “interested stockholder” is a person who, together with affiliates and associates, owns or within the immediately preceding three years did own 15% or more of the corporation’s voting stock.

California and Federal Banking Law

Federal law prohibits a person or group of persons “acting in concert” from acquiring “control” of a bank holding company unless the Federal Reserve Board has been given 60 days prior written notice of such proposed acquisition and within that time period the Federal Reserve Board has not issued a notice disapproving the proposed acquisition or extending for up to another 30 days or more the period during which such a disapproval may be issued. An acquisition may be made prior to the expiration of the disapproval period if the Federal Reserve Board issues written notice of its intent not to disapprove the action. Under a rebuttable presumption established by the Federal Reserve Board, the acquisition of 10% or more of a class of voting stock of a bank or bank holding company with a class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended, would, under the circumstances set forth in the presumption, constitute the acquisition of control. In addition, any “company” would be required to obtain the approval of the Federal Reserve Board under the Bank Holding Company Act of 1956, as amended, before acquiring 25% (5% in the case of an acquiror that is, or is deemed to be, a bank holding company) or more of any class of voting stock, or such lesser number of shares as may constitute control.

Under the California Financial Code, no person shall, directly or indirectly, acquire control of a California state bank or its holding company unless the Commissioner has approved such acquisition of control. A person would be deemed to have acquired control of us if such person, directly or indirectly, has the power (i) to vote 25% or more of our voting power or (ii) to direct or cause the direction of the management and policies of us. For purposes of this law, a person who directly or indirectly owns or controls 10% or more of our Common Stock would be presumed to control us.

Stock Exchange Listing

Our Common Stock is listed on The NASDAQ Global Select Market under the symbol “EWBC.”

Transfer Agent and Registrar

The transfer agent and registrar for our Common Stock is BNY Mellon Shareowner Services.

EX-21.1

Exhibit 21.1

SUBSIDIARIES OF EAST WEST BANCORP, INC.

As of December 31, 2019

Subsidiary	Jurisdiction of Incorporation or Organization
East West Bank	California
E-W Services, Inc.	California
East West Bank (China) Limited	China
East-West Investment, Inc.	California
East West VELO Technology Service (Beijing) Limited Company	China
East West Capital Trust V	Delaware
East West Capital Trust VI	Delaware
East West Capital Trust VII	Delaware
East West Capital Trust VIII	Delaware
East West Capital Trust IX	Delaware
MCBI Statutory Trust I	Delaware
East West Insurance Services, Inc.	California
East West Markets, LLC	Texas
East West Investment Management LLC	Delaware

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

East West Bancorp, Inc.:

We consent to the incorporation by reference in the registration statement (No. 333-46718, 333-54538, 333-113478, 333-118677, and 333-128828) on Form S-3 and (No. 333-88529, 333-88527, 333-56468, 333-85330, 333-91554, 333-105292 and 333-232350) on Form S-8 of East West Bancorp, Inc. of our reports dated February 27, 2020, with respect to the consolidated balance sheet of East West Bancorp, Inc. and subsidiaries as of December 31, 2019 and 2018, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2019, and the related notes, and the effectiveness of internal control over financial reporting as of December 31, 2019, which reports appear in the December 31, 2019 annual report on Form 10-K of East West Bancorp, Inc.

/s/ KPMG LLP

Los Angeles, California

February 27, 2020

EX-31.1

Exhibit 31.1

CERTIFICATION

CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

FOR THE CHIEF EXECUTIVE OFFICER

I, Dominic Ng, certify that:

1. I have reviewed this Annual Report on Form 10-K of East West Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 27, 2020

/s/ DOMINIC NG

Dominic Ng

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

FOR THE CHIEF FINANCIAL OFFICER

I, Irene H. Oh, certify that:

1. I have reviewed this Annual Report on Form 10-K of East West Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 27, 2020

/s/ IRENE H. OH

Irene H. Oh

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of East West Bancorp, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dominic Ng, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, based on my knowledge that:

a. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

b. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 27, 2020

/s/ DOMINIC NG

Dominic Ng

Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of East West Bancorp, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Irene H. Oh, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, based on my knowledge that:

a. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

b. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 27, 2020

/s/ IRENE H. OH

Irene H. Oh

Chief Financial Officer

XML

Securities Purchased under Resale Agreements and Sold under Repurchase Agreements (Tables)

12 Months Ended

Dec. 31, 2019

RESALE AND REPURCHASE AGREEMENTS

Schedule of balance sheet offsetting for resale agreements and repurchase agreements

The following tables present the resale and repurchase agreements included on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,110,000	$	(250,000	)	$	860,000	$	(856,058	)	(1)	$	3,942
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Pledged
Repurchase agreements	$	450,000	$	(250,000	)	$	200,000	$	(200,000	)	(2)	$	—

($ in thousands)	December 31, 2018
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,435,000	$	(400,000	)	$	1,035,000	$	(1,025,066	)	(1)	$	9,934
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral  Pledged
Repurchase agreements	$	450,000	$	(400,000	)	$	50,000	$	(50,000	)	(2)	$	—

(1) Represents the fair value of securities the Company has received under resale agreements, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

(2) Represents the fair value of securities the Company has pledged under repurchase agreements, limited for table presentation purposes to the amount of the recognized liability due to each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

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Employee Benefit Plans (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) executive	Dec. 31, 2018 USD ($) executive	Dec. 31, 2017 USD ($) executive
Employee Benefit Plan [Line Items]
Maximum employee contribution (as a percent)	80.00%
Company match percentage (as a percent)	100.00%
Percentage of employee pay that Company matches (as a percent)	6.00%
Matching contribution annual vesting rate (as a percent)	20.00%
Matching contribution, vesting period	5 years
Employer's contribution	$ 14,000,000.0	$ 9,900,000	$ 8,900,000
Supplemental Executive Retirement Plan (SERP)
Employee Benefit Plan [Line Items]
Additional benefits to be accrued for	$ 0
Number of executives remaining under the SERP | executive	1	1	1
Accrued benefit expense	$ 333,000	$ 332,000	$ 331,000
Benefit obligation	$ 4,200,000	$ 4,200,000

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Stock Compensation Plans (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares outstanding other than RSUs (in shares)	0	0	0
RSUs | Ratably
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
RSUs | Cliff | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
RSUs | Cliff | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of awards granted (in dollars per share)	$ 54.64	$ 70.13	$ 56.59
Total fair value of awards that vested	$ 14.5	$ 16.2	$ 13.0
Total unrecognized stock compensation expense	$ 13.9
Weighted average period to recognize unrecognized compensation cost	1 year 9 months 21 days
Performance-Based RSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	0.00%
Performance-Based RSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	200.00%
Performance-Based RSUs | Cliff
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of awards granted (in dollars per share)	$ 52.46	$ 66.86	$ 55.28
Total fair value of awards that vested	$ 20.7	$ 23.1	$ 17.2
Total unrecognized stock compensation expense	$ 23.3
Weighted average period to recognize unrecognized compensation cost	1 year 8 months 19 days
2016 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)	14,000,000.0
Shares available (in shares)	3,500,000

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Subsequent Events

12 Months Ended

Dec. 31, 2019

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On January 23, 2020, the Company’s Board of Directors declared first quarter 2020 cash dividends for the Company’s common stock. The common stock cash dividend of $0.275 per share was paid on February 14, 2020 to stockholders of record as of February 3, 2020.

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Deposits

12 Months Ended

Dec. 31, 2019

DEPOSIT ACCOUNTS

Deposits

Deposits

The following table presents the composition of the Company’s deposits as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Deposits:
Noninterest-bearing demand	$	11,080,036	$	11,377,009
Interest-bearing checking	5,200,755		4,584,447
Money market	8,711,964		8,262,677
Savings	2,117,196		2,146,429
Time deposits:
Less than $100,000	1,993,950		1,957,121
$100,000 or greater	8,220,358		7,111,945
Total deposits	$	37,324,259	$	35,439,628

The aggregate amount of domestic time deposits that meet or exceed the current Federal Deposit Insurance Corporation (“FDIC”) insurance limit of $250,000 was $5.44 billion and $4.45 billion as of December 31, 2019 and 2018, respectively. As of both December 31, 2019 and 2018, the aggregate amount of foreign office time deposits, including both Hong Kong and China that meet or exceed the current FDIC insurance limit of $250,000 was $1.19 billion.

As of December 31, 2019, $493.4 million of interest-bearing demand deposits and $1.21 billion of time deposits were held by the Company’s branch in Hong Kong and subsidiary bank in China. As of December 31, 2018, $621.3 million of interest-bearing demand deposits and $1.21 billion of time deposits were held by the Company’s branch in Hong Kong and subsidiary bank in China.

The following table presents the scheduled maturities of time deposits for the five years succeeding December 31, 2019 and thereafter:

($ in thousands)	Amount
2020	$	9,653,276
2021	428,971
2022	59,324
2023	36,633
2024	7,024
Thereafter	29,080
Total	$	10,214,308

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Deposits (Balances for Core Deposits and Time Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Core Deposits
Noninterest-bearing demand	$ 11,080,036	$ 11,377,009
Interest-bearing checking	5,200,755	4,584,447
Money market	8,711,964	8,262,677
Savings	2,117,196	2,146,429
Time deposits:
Less than $100,000	1,993,950	1,957,121
$100,000 or greater	8,220,358	7,111,945
Total deposits	37,324,259	35,439,628
Time deposits	10,214,308
Hong Kong and China
Time deposits:
Interest-bearing demand deposit	493,400	621,300
Time deposits	1,210,000	1,210,000
Geographic Distribution, Domestic | United States
Time deposits:
Time deposits, at or above FDIC insurance limit	5,440,000	4,450,000
Geographic Distribution, Foreign | Hong Kong and China
Time deposits:
Time deposits, at or above FDIC insurance limit	$ 1,190,000	$ 1,190,000

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Fair Value Measurement and Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurement and Fair Value of Financial Instruments

Fair Value Measurement and Fair Value of Financial Instruments

Fair Value Determination

Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining the fair value of financial instruments, the Company uses various methods including market and income approaches. Based on these approaches, the Company utilizes certain assumptions that market participants would use in pricing an asset or a liability. These inputs can be readily observable, market corroborated or generally unobservable. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy noted below is based on the quality and reliability of the information used to determine fair value. The fair value hierarchy gives the highest priority to quoted prices available in active markets and the lowest priority to data lacking transparency. The fair value of the Company’s assets and liabilities is classified and disclosed in one of the following three categories:

• Level 1 — Valuation is based on quoted prices for identical instruments traded in active markets.

• Level 2 — Valuation is based on quoted prices for similar instruments traded in active markets; quoted prices for identical or similar instruments traded in markets that are not active; and model-derived valuations whose inputs are observable and can be corroborated by market data.

• Level 3 — Valuation is based on significant unobservable inputs for determining the fair value of assets or liabilities. These significant unobservable inputs reflect assumptions that market participants may use in pricing the assets or liabilities.

The classification of assets and liabilities within the hierarchy is based on whether inputs to the valuation methodology used are observable or unobservable, and the significance of those inputs in the fair value measurement. The Company’s assets and liabilities are classified in their entirety based on the lowest level of input that is significant to their fair value measurements.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following section describes the valuation methodologies used by the Company to measure financial assets and liabilities on a recurring basis, as well as the general classification of these instruments pursuant to the fair value hierarchy.

Available-for-Sale Investment Securities — When available, the Company uses quoted market prices to determine the fair value of AFS investment securities, which are classified as Level 1. Level 1 AFS investment securities are comprised of U.S. Treasury securities. The fair value of other AFS investment securities is generally determined by independent external pricing service providers who have experience in valuing these securities or by taking the average quoted market prices obtained from independent external brokers. The valuations provided by the third-party pricing service providers are based on observable market inputs, which include benchmark yields, reported trades, issuer spreads, benchmark securities, bids, offers, prepayment expectation and reference data obtained from market research publications. Inputs used by the third-party pricing service in valuing collateralized mortgage obligations and other securitization structures also include new issue data, monthly payment information, whole loan collateral performance, tranche evaluation and “To Be Announced” prices. In valuing securities issued by state and political subdivisions, inputs used by third-party pricing service providers also include material event notices.

On a monthly basis, the Company validates the valuations provided by third-party pricing service providers to ensure that the fair value determination is consistent with the applicable accounting guidance and the financial instruments are properly classified in the fair value hierarchy. To perform this validation, the Company evaluates the fair values of securities by comparing the fair values provided by the third-party pricing service to prices from other available independent sources for the same securities. When variances in prices are identified, the Company further compares inputs used by different sources to ascertain the reliability of these sources. On a quarterly basis, the Company reviews the documentation received from the third-party pricing service providers regarding the valuation inputs and methodology used for each category of securities.

When pricing is unavailable from third-party pricing service for certain securities, the Company requests market quotes from various independent external brokers and utilizes the average quoted market prices. Since these valuations are based on observable inputs in the current marketplace and are classified as Level 2. The Company periodically communicates with the independent external brokers to validate their pricing methodology. Information such as pricing sources, pricing assumptions, data inputs and valuation technique are reviewed.

Equity Securities — Equity securities were comprised of mutual funds as of both December 31, 2019 and 2018. The Company uses Net Asset Value (“NAV”) information to determine the fair value of these equity securities. When NAV is available periodically and the equity securities can be put back to the transfer agents at the publicly available NAV, the fair value of the equity securities is classified as Level 1. When NAV is available periodically but the equity securities may not be readily marketable at its periodic NAV in the secondary market, the fair value of these equity securities is classified as Level 2.

Interest Rate Contracts — The Company enters into interest rate swap and option contracts with its borrowers to lock in attractive intermediate and long-term interest rates, resulting in the customer obtaining a synthetic fixed-rate loan. To economically hedge against the interest rate risks in the products offered to its customers, the Company enters into mirrored offsetting interest rate contracts with third-party financial institutions. The Company also enters into interest rate swap contracts with institutional counterparties to hedge against certificates of deposit issued. The fair value of the interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The fair value of the interest rate options, which consist of floors and caps, is determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fall below (rise above) the strike rate of the floors (caps). In addition, to comply with the provisions of ASC 820, Fair Value Measurement, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements of its derivatives. The credit valuation adjustments associated with the Company’s derivatives utilize model-derived credit spreads, which are Level 3 inputs. As of December 31, 2019 and 2018, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of these interest rate contracts and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivative portfolios. As a result, the Company classifies these derivative instruments as Level 2 due to the observable nature of the significant inputs utilized.

Foreign Exchange Contracts — The Company enters into foreign exchange contracts to accommodate the business needs of its customers. For a majority of the foreign exchange contracts entered with its customers, the Company entered into offsetting foreign exchange contracts with third-party financial institutions to manage its exposure. The Company also utilizes foreign exchange contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in certain foreign currency on-balance sheet assets and liabilities, primarily foreign currency denominated deposits that it offers to its customers. The fair value is determined at each reporting period based on changes in the foreign exchange rates. These are over-the-counter contracts where quoted market prices are not readily available. Valuation is measured using conventional valuation methodologies with observable market data. Due to the short-term nature of the majority of these contracts, the counterparties’ credit risks are considered nominal and result in no adjustments to the valuation of the foreign exchange contracts. Due to the observable nature of the inputs used in deriving the fair value of these contracts, the valuation of foreign exchange contracts are classified as Level 2. The Company held foreign currency non-deliverable forward contracts as of December 31, 2019 and held foreign swap contracts as of December 31, 2018 to hedge its net investment in its China subsidiary, East West Bank (China) Limited, a non-USD functional currency subsidiary in China. These foreign currency non-deliverable forward and swap contracts were designated as net investment hedges. The fair value of foreign currency contracts is valued by comparing the contracted foreign exchange rate to the current market foreign exchange rate. Key inputs of the current market exchange rate include spot rates and forward rates of the contractual currencies. Foreign exchange forward curves are used to determine which forward rate pertains to a specific maturity. Due to the observable nature of the inputs used in deriving the estimated fair value, these instruments are classified as Level 2.

Credit Contracts — The Company may periodically enter into credit risk participation agreements (“RPAs”) to manage the credit exposure on interest rate contracts associated with the syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. The fair value of RPAs is calculated by determining the total expected asset or liability exposure of the derivatives to the borrowers and applying the borrowers’ credit spread to that exposure. Total expected exposure incorporates both the current and potential future exposure of the derivatives, derived from using observable inputs, such as yield curves and volatilities. The majority of the inputs used to value the RPAs are observable. Accordingly, RPAs fall within Level 2.

Equity Contracts — As part of the loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of technology and life sciences companies it provides loans to. As of December 31, 2019 and 2018, the warrants included on the Consolidated Financial Statements were from both public and private companies. The Company values these warrants based on the Black-Scholes option pricing model. For equity warrants from public companies, the model uses the underlying stock price, stated strike price, warrant expiration date, risk-free interest rate based on a duration-matched U.S. Treasury rate and market-observable company-specific option volatility as inputs to value the warrants. Due to the observable nature of the inputs used in deriving the estimated fair value, warrants from public companies are classified as Level 2. For warrants from private companies, the model uses inputs such as the offering price observed in the most recent round of funding, stated strike price, warrant expiration date, risk-free interest rate based on duration-matched U.S. Treasury rate and option volatility. The Company applies proxy volatilities based on the industry sectors of the private companies. The model values are then adjusted for a general lack of liquidity due to the private nature of the underlying companies. Due to the unobservable nature of the option volatility and liquidity discount assumptions used in deriving the estimated fair value, warrants from private companies are classified as Level 3. Since both option volatility and liquidity discount assumptions are subject to management’s judgment, measurement uncertainty is inherent in the valuation of private companies’ equity warrants. Given that the Company holds long positions in all equity warrants, an increase in volatility assumption would generally result in an increase in fair value measurement. A higher liquidity discount would result in a decrease in fair value measurement. On a quarterly basis, the changes in the fair value of warrants from private companies are reviewed for reasonableness, and a measurement uncertainty analysis on the option volatility and liquidity discount assumptions is performed.

Commodity Contracts — The Company enters into energy commodity contracts in the form of swaps and options with its commercial loan customers to allow them to hedge against the risk of fluctuation in energy commodity prices. The fair value of the commodity option contracts is determined using the Black’s model and assumptions that include expectations of future commodity price and volatility. The future commodity contract price is derived from observable inputs such as the market price of the commodity. Commodity swaps are structured as an exchange of fixed cash flows for floating cash flows. The fixed cash flows are predetermined based on the known volumes and fixed price as specified in the swap agreement. The floating cash flows are correlated with the change of forward commodity prices, which is derived from market corroborated futures settlement prices. The fair value of the commodity swaps is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments) based on the market prices of the commodity. As a result, the Company classifies these derivative instruments as Level 2 due to the observable nature of the significant inputs utilized.

The following tables present financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	176,422	$	—		$	—	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	—		581,245			—		581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		603,471			—		603,471
Residential mortgage-backed securities	—		1,003,897			—		1,003,897
Municipal securities	—		102,302			—		102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		88,550			—		88,550
Residential mortgage-backed securities	—		46,548			—		46,548
Corporate debt securities	—		11,149			—		11,149
Foreign bonds	—		354,172			—		354,172
Asset-backed securities	—		64,752			—		64,752
Collateralized loan obligations (“CLOs”)	—		284,706			—		284,706
Total AFS investment securities	$	176,422	$	3,140,792		$	—	$	3,317,214
Investments in tax credit and other investments:
Equity securities (1)	$	21,746	$	9,927		$	—	$	31,673
Total investments in tax credit and other investments	$	21,746	$	9,927		$	—	$	31,673
Derivative assets:
Interest rate contracts	$	—	$	192,883		$	—	$	192,883
Foreign exchange contracts	—		54,637			—		54,637
Credit contracts	—		2			—		2
Equity contracts	—		993			421		1,414
Commodity contracts	—		81,380			—		81,380
Gross derivative assets	$	—	$	329,895		$	421	$	330,316
Netting adjustments (2)	$	—	$	(125,319	)	$	—	$	(125,319	)
Net derivative assets	$	—	$	204,576		$	421	$	204,997
Derivative liabilities:
Interest rate contracts	$	—	$	127,317		$	—	$	127,317
Foreign exchange contracts	—		48,610			—		48,610
Credit contracts	—		84			—		84
Commodity contracts	—		80,517			—		80,517
Gross derivative liabilities	$	—	$	256,528		$	—	$	256,528
Netting adjustments (2)	$	—	$	(159,799	)	$	—	$	(159,799	)
Net derivative liabilities	$	—	$	96,729		$	—	$	96,729

(1) Equity securities are comprised of mutual funds with readily determinable fair values.

(2) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	564,815	$	—		$	—	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	—		217,173			—		217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		408,603			—		408,603
Residential mortgage-backed securities	—		946,693			—		946,693
Municipal securities	—		82,020			—		82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		26,052			—		26,052
Residential mortgage-backed securities	—		9,931			—		9,931
Corporate debt securities	—		10,869			—		10,869
Foreign bonds	—		463,048			—		463,048
Asset-backed securities	—		12,643			—		12,643
Total AFS investment securities	$	564,815	$	2,177,032		$	—	$	2,741,847
Investments in tax credit and other investments:
Equity securities (1)	$	20,678	$	10,531		$	—	$	31,209
Total investments in tax credit and other investments	$	20,678	$	10,531		$	—	$	31,209
Derivative assets:
Interest rate contracts	$	—	$	69,818		$	—	$	69,818
Foreign exchange contracts	—		21,624			—		21,624
Credit contracts	—		1			—		1
Equity contracts	—		1,278			673		1,951
Commodity contracts	—		14,422			—		14,422
Gross derivative assets	$	—	$	107,143		$	673	$	107,816
Netting adjustments (2)	$	—	$	(45,146	)	$	—	$	(45,146	)
Net derivative assets	$	—	$	61,997		$	673	$	62,670
Derivative liabilities:
Interest rate contracts	$	—	$	75,133		$	—	$	75,133
Foreign exchange contracts	—		19,940			—		19,940
Credit contracts	—		164			—		164
Commodity contracts	—		23,068			—		23,068
Gross derivative liabilities	$	—	$	118,305		$	—	$	118,305
Netting adjustments (2)	$	—	$	(38,402	)	$	—	$	(38,402	)
Net derivative liabilities	$	—	$	79,903		$	—	$	79,903

(1) Equity securities were comprised of mutual funds with readily determinable fair values.

(2) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

Level 3 fair value measurements that were measured on a recurring basis consist of equity warrants issued by private companies as of and for the years ended December 31, 2019, 2018 and 2017. The following table provides a reconciliation of the beginning and ending balances of these equity warrants for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
	Equity Warrants			Equity Warrants			Other Securities			Equity Warrants
Beginning balance	$	673		$	679		$	—		$	—
Transfer of investment security from held-to-maturity to AFS	—			—			115,615			—
Total gains included in earnings (1)	563			162			1,156			—
Issuances	114			65			—			679
Sales	—			—			(116,771		)	—
Settlements	(929		)	(233		)	—			—
Ending balance	$	421		$	673		$	—		$	679

(1) Includes unrealized (losses) gains of $(292) thousand and $225 thousand for the years ended December 31, 2019 and 2018, respectively. There were no unrealized gains (losses) for the year ended December 31, 2017. The realized/unrealized gains (losses) of equity warrants are included in Lending fees on the Consolidated Statement of Income.

The following table presents quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements as of December 31, 2019 and 2018. The significant unobservable inputs presented in the table below are those that the Company considers significant to the fair value of the Level 3 assets. The Company considers unobservable inputs to be significant if, by their exclusion, the fair value of the Level 3 assets would be impacted by a predetermined percentage change.

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique	Unobservable Inputs	Range of Inputs	Weighted-  Average (1)
December 31, 2019
Derivative assets:
Equity warrants	$	421	Black-Scholes option pricing model	Equity volatility	39% — 44%	42%
				Liquidity discount	47%	47%
December 31, 2018
Derivative assets:
Equity warrants	$	673	Black-Scholes option pricing model	Equity volatility	49% — 52%	51%
				Liquidity discount	47%	47%

(1) Weighted-average is calculated based on fair value of equity warrants as of December 31, 2019 and 2018, respectively.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Assets measured at fair value on a nonrecurring basis include certain non-PCI loans, investments in qualified affordable housing partnerships, tax credit and other investments, OREO, and loans held-for-sale. Nonrecurring fair value adjustments result from impairment on certain non-PCI loans and investments in qualified affordable housing partnerships, tax credit and other investments, write-downs of OREO, or from the application of lower of cost or fair value on loans held-for-sale.

Non-PCI Impaired Loans — The Company typically adjusts the carrying amount of impaired loans when there is evidence of probable loss and when the expected fair value of the loan is less than its carrying amount. Impaired loans with specific reserves are classified as Level 3 assets. The following two methods are used to derive the fair value of impaired loans:

• Discounted cash flows valuation techniques that consist of developing an expected stream of cash flows over the life of the loans and then valuing the loans at the present value by discounting the expected cash flows at a designated discount rate.

• A specific reserve is established for an impaired loan based on the fair value of the underlying collateral, which may take the form of real estate, inventory, equipment, contracts or guarantees. The fair value of the underlying collateral is generally based on third-party appraisals, or an internal valuation if a third-party appraisal is not required by regulations, which utilize one or more valuation techniques such as income, market and/or cost approaches.

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net — As part of the Company’s monitoring process, the Company conducts ongoing due diligence on the Company’s investments in its qualified affordable housing partnerships, tax credit and other investments after the initial investment date and prior to the being placed in service date. After these investments are either acquired or placed into service, periodic monitoring is performed, which includes the quarterly review of the financial statements of the tax credit investment entity and the annual review of the financial statements of the guarantor (if any), as well as the review of the annual tax returns of the tax credit investment entity; and comparison of the actual cash distributions received against the financial projections prepared at the time when the investment was made. The Company assesses its tax credit investments for possible OTTI on an annual basis or when events or circumstances suggest that the carrying amount of the tax credit investments may not be realizable. These circumstances can include, but are not limited to the following factors:

• The current fair value of the tax credit investment based upon the expected future cash flows is less than the carrying amount;

• Change in the economic, market or technological environment that could adversely affect the investee’s operations; and

• Other factors that raise doubt about the investee’s ability to continue as a going concern, such as negative cash flows from operations and the continuing prospects of the underlying operations of the investment.

All available evidence is considered in assessing whether a decline in value is other-than-temporary. Generally, none of the aforementioned factors are individually conclusive and the relative importance placed on individual facts may vary depending on the situation. In accordance with ASC 323-10-35-32, an impairment charge would only be recognized in earnings for a decline in value that is determined to be other-than-temporary.

Other Real Estate Owned — The Company’s OREO represents properties acquired through foreclosure, or through full or partial satisfaction of loans held-for-investment. These OREO properties are recorded at estimated fair value less the costs to sell at the time of foreclosure or at the lower of cost or estimated fair value less the costs to sell subsequent to acquisition. On a monthly basis, the current fair market value of each OREO property is reviewed to ensure that the current carrying value is appropriate. OREO properties are classified as Level 3.

The following tables present the carrying amounts of assets that were still held and had fair value changes measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	47,554	$	47,554
CRE:
CRE	—		—		753		753
Total commercial	—		—		48,307		48,307
Consumer:
Residential mortgage:
HELOCs	—		—		1,372		1,372
Total consumer	—		—		1,372		1,372
Total non-PCI impaired loans	$	—	$	—	$	49,679	$	49,679
OREO (1)	$	—	$	—	$	125	$	125
Investments in tax credit and other investments, net	$	—	$	—	$	3,076	$	3,076

(1) Amounts are included in Other assets on the Consolidated Balance Sheet and represent the carrying value of OREO properties that were written down subsequent to their initial classification as OREO.

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	26,873	$	26,873
CRE:
CRE	—		—		3,434		3,434
Total commercial	—		—		30,307		30,307
Consumer:
Residential mortgage:
Single-family residential	—		—		2,551		2,551
Total consumer	—		—		2,551		2,551
Total non-PCI impaired loans	$	—	$	—	$	32,858	$	32,858

The following table presents the increase (decrease) in fair value of assets for which a fair value adjustment has been recognized for the years ended December 31, 2019, 2018 and 2017, related to assets that were still held as of those dates:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI impaired loans:
Commercial:
C&I	$	(35,365	)	$	(9,341	)	$	(19,703	)
CRE:
CRE	9			270			(272		)
Construction and land	—			—			(147		)
Total CRE	9			270			(419		)
Total commercial	(35,356		)	(9,071		)	(20,122		)
Consumer:
Residential mortgage:
Single-family residential	—			15			(11		)
HELOCs	(2		)	—			—
Total residential mortgage	(2		)	15			(11		)
Other consumer	—			—			(2,491		)
Total consumer	$	(2	)	$	15		$	(2,502	)
Total non-PCI impaired loans	$	(35,358	)	$	(9,056	)	$	(22,624	)
OREO	$	(8	)	$	—		$	(1	)
Investments in tax credit and other investments, net	$	(13,023	)	$	—		$	—

The following table presents the quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements that are measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique(s)	Unobservable Input(s)	Range of Input(s)	Weighted- Average (1)
December 31, 2019
Non-PCI impaired loans	$	27,841	Discounted cash flows	Discount	4% — 15%	14%
	$	1,014	Fair value of collateral	Discount	8% — 20%	19%
	$	20,824	Fair value of collateral	Contract value	NM	NM
OREO	$	125	Fair value of property	Selling cost	8%	8%
Investments in tax credit and other investments, net	$	3,076	Individual analysis of each investment	Expected future tax benefits and distributions	NM	NM
December 31, 2018
Non-PCI impaired loans	$	16,921	Discounted cash flows	Discount	4% — 7%	6%
	$	2,751	Fair value of collateral	Discount	15% — 50%	21%
	$	11,499	Fair value of collateral	Contract value	NM	NM
	$	1,687	Fair value of property	Selling cost	8%	8%

NM — Not meaningful.

(1) Weighted-average is based on the relative fair value of the respective assets as of December 31, 2019 and 2018.

Disclosures about Fair Value of Financial Instruments

The following tables present the fair value estimates for financial instruments as of December 31, 2019 and 2018, excluding financial instruments recorded at fair value on a recurring basis as they are included in the tables presented elsewhere in this Note. The carrying amounts in the following tables are recorded on the Consolidated Balance Sheet under the indicated captions, except for accrued interest receivable and mortgage servicing rights that are included in Other assets, and accrued interest payable that is included in Accrued expenses and other liabilities. These financial assets and liabilities are measured at amortized cost basis on the Company’s Consolidated Balance Sheet.

($ in thousands)	December 31, 2019
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,261,149	$	3,261,149	$	—	$	—	$	3,261,149
Interest-bearing deposits with banks	$	196,161	$	—	$	196,161	$	—	$	196,161
Resale agreements (1)	$	860,000	$	—	$	856,025	$	—	$	856,025
Restricted equity securities, at cost	$	78,580	$	—	$	78,580	$	—	$	78,580
Loans held-for-sale	$	434	$	—	$	434	$	—	$	434
Loans held-for-investment, net	$	34,420,252	$	—	$	—	$	35,021,300	$	35,021,300
Mortgage servicing rights	$	6,068	$	—	$	—	$	8,199	$	8,199
Accrued interest receivable	$	144,599	$	—	$	144,599	$	—	$	144,599
Financial liabilities:
Demand, checking, savings and money market deposits	$	27,109,951	$	—	$	27,109,951	$	—	$	27,109,951
Time deposits	$	10,214,308	$	—	$	10,208,895	$	—	$	10,208,895
Short-term borrowings	$	28,669	$	—	$	28,669	$	—	$	28,669
FHLB advances	$	745,915	$	—	$	755,371	$	—	$	755,371
Repurchase agreements (1)	$	200,000	$	—	$	232,597	$	—	$	232,597
Long-term debt	$	147,101	$	—	$	152,641	$	—	$	152,641
Accrued interest payable	$	27,246	$	—	$	27,246	$	—	$	27,246

($ in thousands)	December 31, 2018
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,001,377	$	3,001,377	$	—	$	—	$	3,001,377
Interest-bearing deposits with banks	$	371,000	$	—	$	371,000	$	—	$	371,000
Resale agreements (1)	$	1,035,000	$	—	$	1,016,724	$	—	$	1,016,724
Restricted equity securities, at cost	$	74,069	$	—	$	74,069	$	—	$	74,069
Loans held-for-sale	$	275	$	—	$	275	$	—	$	275
Loans held-for-investment, net	$	32,073,867	$	—	$	—	$	32,273,157	$	32,273,157
Mortgage servicing rights	$	7,836	$	—	$	—	$	11,427	$	11,427
Accrued interest receivable	$	146,262	$	—	$	146,262	$	—	$	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	$	26,370,562	$	—	$	26,370,562	$	—	$	26,370,562
Time deposits	$	9,069,066	$	—	$	9,084,597	$	—	$	9,084,597
Short-term borrowings	$	57,638	$	—	$	57,638	$	—	$	57,638
FHLB advances	$	326,172	$	—	$	334,793	$	—	$	334,793
Repurchase agreements (1)	$	50,000	$	—	$	87,668	$	—	$	87,668
Long-term debt	$	146,835	$	—	$	152,556	$	—	$	152,556
Accrued interest payable	$	22,893	$	—	$	22,893	$	—	$	22,893

(1)

Resale and repurchase agreements are reported net pursuant to ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Out of gross repurchase agreements of $450.0 million, $250.0 million and $400.0 million as of December 31, 2019 and 2018, respectively, were eligible for netting against gross resale agreements.

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Goodwill and Other Intangible Assets (Amortization Expense of Core Deposit Intangibles) (Details) - Core Deposit Intangibles - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense related to the core deposit intangible assets	$ 4,500	$ 5,500	$ 6,900
Estimated future amortization expense
2020	3,634
2021	2,749
2022	1,865
2023	1,199
2024	553
Thereafter	11
Net carrying balance	$ 10,011	$ 14,529

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Leases (Schedule of Other Supplemental Information) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 35,496
Operating cash flows from finance leases	161
Financing cash flows from finance leases	883
Right-of-use assets obtained in exchange for new lease liabilities:
Right-of-use assets obtained in exchange for new lease liabilities, operating leases	21,716
Right-of-use assets obtained in exchange for new lease liabilities, financing leases	$ 304
Weighted-average remaining lease term (in years):
Weighted-average remaining lease term, operating leases	4 years 7 months 6 days
Weighted-average remaining lease term, finance leases	16 years 2 months 12 days
Weighted-average discount rate:
Weighted-average discount rate, operating leases	3.19%
Weighted-average discount rate, finance leases	2.84%

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Loans Receivable and Allowance for Credit Losses

12 Months Ended

Dec. 31, 2019

Loans and Leases Receivable Disclosure [Abstract]

Loans Receivable and Allowance for Credit Losses

Loans Receivable and Allowance for Credit Losses

The Company’s held-for-investment loan portfolio includes originated and purchased loans. Originated and purchased loans with no evidence of credit deterioration at their acquisition date are referred to collectively as non-PCI loans. PCI loans are loans acquired with evidence of credit deterioration since their origination and for which it is probable at the acquisition date that the Company would be unable to collect all contractually required payments. PCI loans are accounted for under ASC Subtopic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company has elected to account for PCI loans on a pool level basis under ASC 310-30 at the time of acquisition.

The following table presents the composition of the Company’s non-PCI and PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019								December 31, 2018
	Non-PCI Loans (1)			PCI     Loans (2)		Total (1)(2)			Non-PCI Loans (1)			PCI Loans (2)			Total (1)(2)
Commercial:
C&I	$	12,149,121		$	1,810	$	12,150,931		$	12,054,818		$	2,152		$	12,056,970
CRE:
CRE	10,165,247			113,201		10,278,448			9,097,165			163,034			9,260,199
Multifamily residential	2,834,212			22,162		2,856,374			2,433,924			36,744			2,470,668
Construction and land	628,459			40		628,499			538,752			42			538,794
Total CRE	13,627,918			135,403		13,763,321			12,069,841			199,820			12,269,661
Total commercial	25,777,039			137,213		25,914,252			24,124,659			201,972			24,326,631
Consumer:
Residential mortgage:
Single-family residential	7,028,979			79,611		7,108,590			5,939,258			97,196			6,036,454
HELOCs	1,466,736			6,047		1,472,783			1,681,979			8,855			1,690,834
Total residential mortgage	8,495,715			85,658		8,581,373			7,621,237			106,051			7,727,288
Other consumer	282,914			—		282,914			331,270			—			331,270
Total consumer	8,778,629			85,658		8,864,287			7,952,507			106,051			8,058,558
Total loans held-for-investment	$	34,555,668		$	222,871	$	34,778,539		$	32,077,166		$	308,023		$	32,385,189
Allowance for loan losses	(358,287		)	—		(358,287		)	(311,300		)	(22		)	(311,322		)
Loans held-for-investment, net	$	34,197,381		$	222,871	$	34,420,252		$	31,765,866		$	308,001		$	32,073,867

(1) Includes net deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts of $(43.2) million and $(48.9) million as of December 31, 2019 and 2018, respectively.

(2) Includes ASC 310-30 discount of $14.3 million and $22.2 million as of December 31, 2019 and 2018, respectively.

The commercial portfolio includes C&I, CRE, multifamily residential, and construction and land loans. The consumer portfolio includes single-family residential, HELOC and other consumer loans.

The C&I loan portfolio, which is comprised of commercial business and trade finance loans, provides financing to businesses in a wide spectrum of industries. The CRE loan portfolio consists of income producing real estate loans that are either owner occupied, or non-owner occupied where 50% or more of the debt service for the loan is primarily provided by unaffiliated rental income from a third party. The multifamily residential loan portfolio is largely comprised of loans secured by residential properties with five or more units in the Bank’s primary lending areas. Construction and land loans mainly provide construction financing for hotels, offices and industrial projects and the purchase of land.

In the consumer portfolio, the Company offers single-family residential loans and HELOCs through a variety of mortgage loan programs. A substantial number of these loans are originated through a reduced documentation loan program, in which a substantial down payment is required, resulting in a low loan-to-value ratio at origination, typically 60% or less. The Company is in a first lien position for many of these reduced documentation single-family residential loans and HELOCs. These loans have historically experienced low delinquency and default rates. Other consumer loans are mainly comprised of insurance premium financing loans.

As of December 31, 2019 and 2018, loans of $22.43 billion and $20.59 billion, respectively, were pledged to secure borrowings and provide additional borrowing capacity from the FRB and the FHLB.

Credit Quality Indicators

All loans are subject to the Company’s credit review and monitoring. For the commercial portfolio, loans are risk rated based on an analysis of the current state of the borrower’s payment performance or delinquency, repayment sources, financial and liquidity factors that include industry and geographic considerations. For the majority of the consumer portfolio, payment performance or delinquency is the driving indicator for the risk ratings.

For the Company’s internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 5 are assigned an internal risk rating of “Pass”, with loans risk-rated 1 being fully secured by cash or U.S. government securities. Pass loans have sufficient sources of repayment in order to repay the loan in full in accordance with all terms and conditions. Loans risk-rated 6 are loans that have potential weaknesses that warrant closer attention by management and are assigned an internal risk rating of “Special Mention”. Loans risk-rated 7 and 8 are loans that have well-defined weaknesses that may jeopardize the full and timely repayment of the loan and are assigned an internal risk rating of “Substandard”. Loans risk-rated 9 are loans that have insufficient sources of repayment and a high probability of loss and are assigned an internal risk rating of “Doubtful”. Loans risk-rated 10 are loans that are uncollectable and of such little value that they are no longer considered bankable assets and are assigned an internal risk rating of “Loss”. These internal risk ratings are reviewed routinely and adjusted based on changes in the borrowers’ financial status and the loans’ collectability.

The following tables present the credit risk ratings for non-PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,423,094	$	406,543	$	302,509	$	16,975	$	12,149,121
CRE:
CRE	10,003,749		83,683		77,815		—		10,165,247
Multifamily residential	2,806,475		20,406		7,331		—		2,834,212
Construction and land	603,447		—		25,012		—		628,459
Total CRE	13,413,671		104,089		110,158		—		13,627,918
Total commercial	24,836,765		510,632		412,667		16,975		25,777,039
Consumer:
Residential mortgage:
Single-family residential	7,012,522		2,278		14,179		—		7,028,979
HELOCs	1,453,207		2,787		10,742		—		1,466,736
Total residential mortgage	8,465,729		5,065		24,921		—		8,495,715
Other consumer	280,392		5		2,517		—		282,914
Total consumer	8,746,121		5,070		27,438		—		8,778,629
Total	$	33,582,886	$	515,702	$	440,105	$	16,975	$	34,555,668

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,644,470	$	260,089	$	139,844	$	10,415	$	12,054,818
CRE:
CRE	8,957,228		49,705		90,232		—		9,097,165
Multifamily residential	2,402,991		20,551		10,382		—		2,433,924
Construction and land	485,217		19,838		33,697		—		538,752
Total CRE	11,845,436		90,094		134,311		—		12,069,841
Total commercial	23,489,906		350,183		274,155		10,415		24,124,659
Consumer:
Residential mortgage:
Single-family residential	5,925,584		6,376		7,298		—		5,939,258
HELOCs	1,669,300		1,576		11,103		—		1,681,979
Total residential mortgage	7,594,884		7,952		18,401		—		7,621,237
Other consumer	328,767		1		2,502		—		331,270
Total consumer	7,923,651		7,953		20,903		—		7,952,507
Total	$	31,413,557	$	358,136	$	295,058	$	10,415	$	32,077,166

The following tables present the credit risk ratings for PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,810	$	—	$	—	$	—	$	1,810
CRE:
CRE	102,257		—		10,944		—		113,201
Multifamily residential	22,162		—		—		—		22,162
Construction and land	40		—		—		—		40
Total CRE	124,459		—		10,944		—		135,403
Total commercial	126,269		—		10,944		—		137,213
Consumer:
Residential mortgage:
Single-family residential	79,517		—		94		—		79,611
HELOCs	5,849		—		198		—		6,047
Total residential mortgage	85,366		—		292		—		85,658
Total consumer	85,366		—		292		—		85,658
Total (1)	$	211,635	$	—	$	11,236	$	—	$	222,871

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,996	$	—	$	156	$	—	$	2,152
CRE:
CRE	143,839		—		19,195		—		163,034
Multifamily residential	35,221		—		1,523		—		36,744
Construction and land	42		—		—		—		42
Total CRE	179,102		—		20,718		—		199,820
Total commercial	181,098		—		20,874		—		201,972
Consumer:
Residential mortgage:
Single-family residential	95,789		1,021		386		—		97,196
HELOCs	8,314		256		285		—		8,855
Total residential mortgage	104,103		1,277		671		—		106,051
Total consumer	104,103		1,277		671		—		106,051
Total (1)	$	285,201	$	1,277	$	21,545	$	—	$	308,023

(1) Loans net of ASC 310-30 discount.

Nonaccrual and Past Due Loans

Non-PCI loans that are 90 or more days past due are generally placed on nonaccrual status, unless the loan is well-collateralized or guaranteed by government agencies, and in the process of collection. Non-PCI loans that are less than 90 days past due but have identified deficiencies, such as when the full collection of principal or interest becomes uncertain, are also placed on nonaccrual status. The following tables present the aging analysis on non-PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	31,121	$	17,034	$	48,155	$	31,084	$	43,751	$	74,835	$	12,026,131	$	12,149,121
CRE:
CRE	22,830		1,977		24,807		540		15,901		16,441		10,123,999		10,165,247
Multifamily residential	198		531		729		534		285		819		2,832,664		2,834,212
Construction and land	—		—		—		—		—		—		628,459		628,459
Total CRE	23,028		2,508		25,536		1,074		16,186		17,260		13,585,122		13,627,918
Total commercial	54,149		19,542		73,691		32,158		59,937		92,095		25,611,253		25,777,039
Consumer:
Residential mortgage:
Single-family  residential	15,443		5,074		20,517		1,964		12,901		14,865		6,993,597		7,028,979
HELOCs	4,273		2,791		7,064		1,448		9,294		10,742		1,448,930		1,466,736
Total residential  mortgage	19,716		7,865		27,581		3,412		22,195		25,607		8,442,527		8,495,715
Other consumer	6		5		11		—		2,517		2,517		280,386		282,914
Total consumer	19,722		7,870		27,592		3,412		24,712		28,124		8,722,913		8,778,629
Total	$	73,871	$	27,412	$	101,283	$	35,570	$	84,649	$	120,219	$	34,334,166	$	34,555,668

($ in thousands)	December 31, 2018
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	21,032	$	19,170	$	40,202	$	17,097	$	26,743	$	43,840	$	11,970,776	$	12,054,818
CRE:
CRE	7,740		—		7,740		3,704		20,514		24,218		9,065,207		9,097,165
Multifamily residential	4,174		—		4,174		1,067		193		1,260		2,428,490		2,433,924
Construction and land	207		—		207		—		—		—		538,545		538,752
Total CRE	12,121		—		12,121		4,771		20,707		25,478		12,032,242		12,069,841
Total commercial	33,153		19,170		52,323		21,868		47,450		69,318		24,003,018		24,124,659
Consumer:
Residential mortgage:
Single-family  residential	14,645		7,850		22,495		509		4,750		5,259		5,911,504		5,939,258
HELOCs	2,573		1,816		4,389		1,423		7,191		8,614		1,668,976		1,681,979
Total residential  mortgage	17,218		9,666		26,884		1,932		11,941		13,873		7,580,480		7,621,237
Other consumer	11		12		23		—		2,502		2,502		328,745		331,270
Total consumer	17,229		9,678		26,907		1,932		14,443		16,375		7,909,225		7,952,507
Total	$	50,382	$	28,848	$	79,230	$	23,800	$	61,893	$	85,693	$	31,912,243	$	32,077,166

For information on the policy for recording payments received and resuming accrual of interest on non-PCI loans that are placed on nonaccrual status, see Note 1 — Summary of Significant Accounting Policies — Loans Held-for-Investment to the Consolidated Financial Statements in this Form 10-K.

PCI loans are excluded from the above aging analysis tables as the Company has elected to account for these loans on a pool level basis under ASC 310-30 at the time of acquisition. Refer to the discussion on PCI loans within this note for additional details on interest income recognition. As of December 31, 2019 and 2018, PCI loans on nonaccrual status totaled $297 thousand and $4.0 million, respectively.

Loans in Process of Foreclosure

The Company commences the foreclosure process on consumer mortgage loans when a borrower becomes 120 days delinquent in accordance with Consumer Finance Protection Bureau Guidelines. As of December 31, 2019 and 2018, consumer mortgage loans of $7.2 million and $3.0 million, respectively, were secured by residential real estate properties, for which formal foreclosure proceedings were in process in accordance with local requirements of the applicable jurisdictions. As of both December 31, 2019 and 2018, no foreclosed residential real estate property was included in total net OREO of $125 thousand and $133 thousand, respectively.

Troubled Debt Restructurings

TDRs are individually evaluated and the type of restructuring is selected based on the loan type and the circumstances of the borrower’s financial difficulty. A TDR is a modification of the terms of a loan when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that it would not have otherwise considered.

The following tables present the additions to non-PCI TDRs for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2019
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	95,742	$	71,332	$	8,004
CRE:
Construction and land	1	19,696		19,691		—
Total CRE	1	19,696		19,691		—
Total commercial	9	$	115,438	$	91,023	$	8,004
Consumer:
Residential mortgage:
Single-family residential	2	$	1,123	$	1,098	$	2
HELOCs	2	539		528		—
Total residential mortgage	4	1,662		1,626		2
Total consumer	4	$	1,662	$	1,626	$	2

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2018
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	11,366	$	9,520	$	699
CRE:
CRE	1	750		752		—
Total CRE	1	750		752		—
Total commercial	9	$	12,116	$	10,272	$	699
Consumer:
Residential mortgage:
Single-family residential	2	$	405	$	391	$	(28	)
HELOCs	2	1,546		1,418		—
Total residential mortgage	4	1,951		1,809		(28		)
Total consumer	4	$	1,951	$	1,809	$	(28	)

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2017
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	16	$	43,884	$	37,900	$	11,520
CRE:
CRE	4	2,675		2,627		157
Multifamily residential	1	3,655		2,969		—
Total CRE	5	6,330		5,596		157
Total commercial	21	$	50,214	$	43,496	$	11,677
Consumer:
Residential mortgage:
HELOCs	1	$	152	$	155	$	—
Total residential mortgage	1	152		155		—
Total consumer	1	$	152	$	155	$	—

(1) Includes subsequent payments after modification and reflects the balance as of December 31, 2019, 2018 and 2017.

(2) The financial impact includes charge-offs and specific reserves recorded since the modification date.

The following tables present the non-PCI TDR modifications for the years ended December 31, 2019, 2018 and 2017 by modification type:

($ in thousands)	Modification Type During the Year Ended December 31, 2019
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	31,611	$	—	$	—	$	39,721	$	71,332
CRE:
Construction and land	—		—		19,691		—		19,691
Total CRE	—		—		19,691		—		19,691
Total commercial	31,611		—		19,691		39,721		91,023
Consumer:
Residential mortgage:
Single-family residential	—		1,098		—		—		1,098
HELOCs	—		397		—		131		528
Total residential mortgage	—		1,495		—		131		1,626
Total consumer	—		1,495		—		131		1,626
Total	$	31,611	$	1,495	$	19,691	$	39,852	$	92,649

($ in thousands)	Modification Type During the Year Ended December 31, 2018
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	5,472	$	—	$	—	$	4,048	$	9,520
CRE:
CRE	—		—		752		—		752
Total CRE	—		—		752		—		752
Total commercial	5,472		—		752		4,048		10,272
Consumer:
Residential mortgage:
Single-family residential	66		—		—		325		391
HELOCs	1,353		—		—		65		1,418
Total residential mortgage	1,419		—		—		390		1,809
Total consumer	1,419		—		—		390		1,809
Total	$	6,891	$	—	$	752	$	4,438	$	12,081

($ in thousands)	Modification Type During the Year Ended December 31, 2017
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	13,568	$	7,848	$	—	$	16,484	$	37,900
CRE:
CRE	2,627		—		—		—		2,627
Multifamily residential	2,969		—		—		—		2,969
Total CRE	5,596		—		—		—		5,596
Total commercial	19,164		7,848		—		16,484		43,496
Consumer:
Residential mortgage:
HELOCs	—		155		—		—		155
Total residential mortgage	—		155		—		—		155
Total consumer	—		155		—		—		155
Total	$	19,164	$	8,003	$	—	$	16,484	$	43,651

(1) Includes forbearance payments, term extensions and principal deferments that modify the terms of the loan from principal and interest payments to interest payments only.

(2) Includes principal and interest deferments or reductions.

(3) Includes primarily funding to secure additional collateral and provides liquidity to collateral-dependent C&I loans.

Subsequent to restructuring, if a TDR that becomes delinquent, generally beyond 90 days past due, it is considered to be in default. TDRs are individually evaluated for impairment under the specific reserve methodology, subsequent defaults do not generally have a significant additional impact on the allowance for loan losses. The following table presents information on loans for which a subsequent default occurred during the years ended December 31, 2019, 2018 and 2017, that had been modified as TDR within 12 months or less of its default, and were still in default at the respective period end:

($ in thousands)	Loans Modified as TDRs that Subsequently Defaulted During the Year Ended December 31,
	2019			2018			2017
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
Commercial:
C&I	3	$	13,112	4	$	1,890	3	$	8,659
CRE:
CRE	—	$	—	1	$	186	—	$	—
Total CRE	—	$	—	1	$	186	—	$	—
Consumer:
Residential mortgage:
HELOCs	—	$	—	1	$	150	—	$	—
Total residential mortgage	—	$	—	1	$	150	—	$	—

The amount of additional funds committed to lend to borrowers whose terms have been modified as TDRs was $2.2 million and $3.9 million as of December 31, 2019 and 2018, respectively.

Impaired Loans

The following tables present information on non-PCI impaired loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	174,656	$	73,956	$	40,086	$	114,042	$	2,881
CRE:
CRE	27,601		20,098		1,520		21,618		97
Multifamily residential	4,965		1,371		3,093		4,464		55
Construction and land	19,696		19,691		—		19,691		—
Total CRE	52,262		41,160		4,613		45,773		152
Total commercial	226,918		115,116		44,699		159,815		3,033
Consumer:
Residential mortgage:
Single-family residential	23,626		8,507		13,704		22,211		35
HELOCs	13,711		6,125		7,449		13,574		8
Total residential mortgage	37,337		14,632		21,153		35,785		43
Other consumer	2,517		—		2,517		2,517		2,517
Total consumer	39,854		14,632		23,670		38,302		2,560
Total non-PCI impaired loans	$	266,772	$	129,748	$	68,369	$	198,117	$	5,593

($ in thousands)	December 31, 2018
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	82,963	$	48,479	$	8,609	$	57,088	$	1,219
CRE:
CRE	36,426		28,285		2,067		30,352		208
Multifamily residential	6,031		2,949		2,611		5,560		75
Total CRE	42,457		31,234		4,678		35,912		283
Total commercial	125,420		79,713		13,287		93,000		1,502
Consumer:
Residential mortgage:
Single-family residential	14,670		2,552		10,908		13,460		34
HELOCs	10,035		5,547		4,409		9,956		5
Total residential mortgage	24,705		8,099		15,317		23,416		39
Other consumer	2,502		—		2,502		2,502		2,491
Total consumer	27,207		8,099		17,819		25,918		2,530
Total non-PCI impaired loans	$	152,627	$	87,812	$	31,106	$	118,918	$	4,032

The following table presents the average recorded investment and interest income recognized on non-PCI impaired loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019				2018				2017
	Average Recorded Investment		Recognized Interest    Income (1)		Average Recorded Investment		Recognized Interest Income (1)		Average Recorded Investment		Recognized Interest    Income (1)
Commercial:
C&I	$	248,619	$	2,932	$	143,430	$	1,046	$	110,662	$	1,517
CRE:
CRE	33,046		464		35,049		491		36,003		578
Multifamily residential	6,116		228		11,742		249		11,455		422
Construction and land	19,691		68		3,973		—		4,382		—
Total CRE	58,853		760		50,764		740		51,840		1,000
Total commercial	307,472		3,692		194,194		1,786		162,502		2,517
Consumer:
Residential mortgage:
Single-family residential	37,315		496		22,350		474		14,994		417
HELOCs	22,851		130		14,134		70		5,494		55
Total residential mortgage	60,166		626		36,484		544		20,488		472
Other consumer	2,552		—		2,502		—		2,142		—
Total consumer	62,718		626		38,986		544		22,630		472
Total non-PCI impaired loans	$	370,190	$	4,318	$	233,180	$	2,330	$	185,132	$	2,989

(1) Includes interest income recognized on accruing non-PCI TDRs. Interest payments received on nonaccrual non-PCI loans are reflected as a reduction to principal, not as interest income.

For information on the policy and factors considered for impaired loans, see Note 1 — Summary of Significant Accounting Policies — Impaired Loans to the Consolidated Financial Statements.

Allowance for Credit Losses

The following table presents a summary of activities in the allowance for loan losses by loan type for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI Loans
Allowance for non-PCI loans, beginning of period	$	311,300		$	287,070		$	260,402
Provision for loan losses on non-PCI loans	100,115			65,043			49,129
Gross charge-offs:
Commercial:
C&I	(73,985		)	(59,244		)	(38,118		)
CRE:
CRE	(1,021		)	—			—
Multifamily residential	—			—			(635		)
Construction and land	—			—			(149		)
Total CRE	(1,021		)	—			(784		)
Consumer:
Residential mortgage:
Single-family residential	(11		)	(1		)	(1		)
HELOCs	—			—			(55		)
Total residential mortgage	(11		)	(1		)	(56		)
Other consumer	(50		)	(188		)	(17		)
Total gross charge-offs	(75,067		)	(59,433		)	(38,975		)
Gross recoveries:
Commercial:
C&I	14,501			10,417			11,371
CRE:
CRE	5,209			5,194			2,111
Multifamily residential	1,856			1,757			1,357
Construction and land	536			740			259
Total CRE	7,601			7,691			3,727
Consumer:
Residential mortgage:
Single-family residential	136			1,214			546
HELOCs	7			38			24
Total residential mortgage	143			1,252			570
Other consumer	19			3			152
Total gross recoveries	22,264			19,363			15,820
Net charge-offs	(52,803		)	(40,070		)	(23,155		)
Foreign currency translation adjustments	(325		)	(743		)	694
Allowance for non-PCI loans, end of period	358,287			311,300			287,070
PCI Loans
Allowance for PCI loans, beginning of period	22			58			118
Reversal of loan losses on PCI loans	(22		)	(36		)	(60		)
Allowance for PCI loans, end of period	—			22			58
Allowance for loan losses	$	358,287		$	311,322		$	287,128

For further information on accounting policies and the methodologies used to estimate the allowance for credit losses and loan charge-offs, see Note 1 — Summary of Significant Accounting Policies — Allowance for Credit Losses to the Consolidated Financial Statements in this Form 10-K.

The following table presents a summary of activities in the allowance for unfunded credit commitments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Allowance for unfunded credit commitments, beginning of period	$	12,566		$	13,318		$	16,121
Reversal of unfunded credit commitments	(1,408		)	(752		)	(2,803		)
Allowance for unfunded credit commitments, end of period	$	11,158		$	12,566		$	13,318

The allowance for unfunded credit commitments is maintained at a level, which management believes to be sufficient to absorb estimated probable losses related to unfunded credit facilities. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. See Note 15 — Commitments, Contingencies and Related Party Transactions to the Consolidated Financial Statements in this Form 10-K for additional information related to unfunded credit reserves.

The following tables present the Company’s allowance for loan losses and recorded investments by loan type and impairment methodology as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	2,881	$	97	$	55	$	—	$	35	$	8	$	2,517	$	5,593
Collectively evaluated for impairment	235,495		40,412		22,771		19,404		28,492		5,257		863		352,694
Acquired with deteriorated credit quality	—		—		—		—		—		—		—		—
Total	$	238,376	$	40,509	$	22,826	$	19,404	$	28,527	$	5,265	$	3,380	$	358,287
Recorded investment in loans
Individually evaluated for impairment	$	114,042	$	21,618	$	4,464	$	19,691	$	22,211	$	13,574	$	2,517	$	198,117
Collectively evaluated for impairment	12,035,079		10,143,629		2,829,748		608,768		7,006,768		1,453,162		280,397		34,357,551
Acquired with deteriorated credit quality (1)	1,810		113,201		22,162		40		79,611		6,047		—		222,871
Total (1)	$	12,150,931	$	10,278,448	$	2,856,374	$	628,499	$	7,108,590	$	1,472,783	$	282,914	$	34,778,539

($ in thousands)	December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	1,219	$	208	$	75	$	—	$	34	$	5	$	2,491	$	4,032
Collectively evaluated for impairment	187,898		40,436		19,810		20,290		31,306		5,769		1,759		307,268
Acquired with deteriorated credit quality	—		22		—		—		—		—		—		22
Total	$	189,117	$	40,666	$	19,885	$	20,290	$	31,340	$	5,774	$	4,250	$	311,322
Recorded investment in loans
Individually evaluated for impairment	$	57,088	$	30,352	$	5,560	$	—	$	13,460	$	9,956	$	2,502	$	118,918
Collectively evaluated for impairment	11,997,730		9,066,813		2,428,364		538,752		5,925,798		1,672,023		328,768		31,958,248
Acquired with deteriorated credit quality (1)	2,152		163,034		36,744		42		97,196		8,855		—		308,023
Total (1)	$	12,056,970	$	9,260,199	$	2,470,668	$	538,794	$	6,036,454	$	1,690,834	$	331,270	$	32,385,189

(1) Loans net of ASC 310-30 discount.

Purchased Credit-Impaired Loans

At the date of acquisition, PCI loans are pooled and accounted for at fair value, which represents the discounted value of the expected cash flows of the loan portfolio. A pool is accounted for as a single asset with a single interest rate, cumulative loss rate and cash flows expectation. The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions as to cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. The amount of expected cash flows over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. Projected loss rates and prepayment speeds affect the estimated life of PCI loans, which may change the amount of interest income, and possibly principal, expected to be collected. The excess of total contractual cash flows over the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the “nonaccretable difference.”

The following table presents the changes in accretable yield on PCI loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Accretable yield for PCI loans, beginning of period	$	74,870		$	101,977		$	136,247
Accretion	(24,220		)	(34,662		)	(42,487		)
Changes in expected cash flows	(140		)	7,555			8,217
Accretable yield for PCI loans, end of period	$	50,510		$	74,870		$	101,977

Loans Held-for-Sale

At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future,” subject to periodic reviews under the Company’s evaluation processes, including asset/liability and credit risk management. When the Company subsequently changes its intent to hold certain loans, the loans are transferred from held-for-investment to held-for-sale at the lower of cost or fair value. As of December 31, 2019 and 2018, loans held-for-sale of $434 thousand and $275 thousand, respectively, consisted of single-family residential loans.

Loan Purchases, Transfers and Sales

The Company purchases and sells loans in the secondary market in the ordinary course of business. From time to time, purchased loans may be transferred from held-for-investment to held-for-sale, and write-downs to allowance for loan losses are recorded, when appropriate. The following tables provide information about the carrying value of loans purchased for the held-for-investment portfolio, loans sold and loans transferred from held-for-investment to held-for-sale at lower of cost or fair value during the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	245,002	$	39,062	$	—	$	1,573	$	—	$	—	$	—	$	285,637
Sales (2)(3)(4)	$	245,791	$	39,062	$	—	$	1,573	$	10,410	$	—	$	—	$	296,836
Purchases (5)	$	397,615	$	—	$	8,988	$	—	$	117,227	$	—	$	—	$	523,830

($ in thousands)	Year Ended December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	404,321	$	62,291	$	—	$	—	$	14,981	$	—	$	—	$	481,593
Loans transferred from held-for-sale to held-for-investment	$	2,306	$	—	$	—	$	—	$	—	$	—	$	—	$	2,306
Sales (2)(3)(4)	$	413,844	$	62,291	$	—	$	—	$	34,966	$	—	$	—	$	511,101
Purchases (5)	$	525,767	$	—	$	7,389	$	—	$	63,781	$	—	$	—	$	596,937

($ in thousands)	Year Ended December 31, 2017
	Commercial								Consumer						Total
			CRE						Residential mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	476,644	$	52,217	$	531	$	1,609	$	249	$	—	$	3,706	$	534,956
Loans of DCB branches transferred from held-for-investment to held-for-sale (included in Branch assets held-for-sale) (1)	$	17,590	$	36,783	$	12,448	$	241	$	6,416	$	4,309	$	345	$	78,132
Sales (2)(3)(4)	$	476,644	$	52,217	$	531	$	1,609	$	21,058	$	—	$	25,905	$	577,964
Purchases (5)	$	503,359	$	—	$	2,311	$	—	$	29,060	$	—	$	—	$	534,730

(1) The Company recorded $789 thousand, $14.6 million and $473 thousand in write-downs to the allowance for loan losses related to loans transferred from held-for-investment to held-for-sale for the years ended December 31, 2019, 2018 and 2017, respectively.

(2) Includes originated loans sold of $230.3 million, $309.7 million and $178.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. Originated loans sold were primarily comprised of C&I loans for the years ended December 31, 2019 and 2018; and C&I, CRE and single-family residential loans for the year ended December 31, 2017.

(3) Includes purchased loans sold in the secondary market of $66.5 million, $201.4 million and $399.8 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(4) Net gains on sales of loans were $4.0 million, $6.6 million and $8.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(5)

C&I loan purchases for each of the yeas ended December 31, 2019, 2018 and 2017 were comprised of broadly syndicated C&I term loans.

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Derivatives (Derivatives Not Designated as Hedging Instruments - Foreign Exchange Contracts) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative assets - Fair value	$ 330,316	$ 107,816
Derivative liabilities - Fair Value	256,528	118,305
Derivative instruments not designated as hedging instruments
Derivative [Line Items]
Notional amount	20,540,031	15,222,341
Derivative assets - Fair value	330,316	107,816
Derivative liabilities - Fair Value	251,744	111,828
Derivative instruments not designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Notional amount	4,839,661	3,407,522
Derivative assets - Fair value	54,637	21,624
Derivative liabilities - Fair Value	47,024	19,329
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Forwards and spot
Derivative [Line Items]
Notional amount	3,581,036	2,023,425
Derivative assets - Fair value	45,911	11,719
Derivative liabilities - Fair Value	40,591	13,079
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Swaps
Derivative [Line Items]
Notional amount	6,889	21,108
Derivative assets - Fair value	16	348
Derivative liabilities - Fair Value	84	243
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Written options
Derivative [Line Items]
Notional amount	87,036	537
Derivative assets - Fair value	127	16
Derivative liabilities - Fair Value	0	0
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Collars
Derivative [Line Items]
Notional amount	2,244	83,864
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	14	370
Foreign exchange contracts | Customer Counterparty | Derivative instruments not designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Notional amount	3,677,205	2,128,934
Derivative assets - Fair value	46,054	12,083
Derivative liabilities - Fair Value	40,689	13,692
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Forwards and spot
Derivative [Line Items]
Notional amount	207,492	506,342
Derivative assets - Fair value	1,400	3,407
Derivative liabilities - Fair Value	507	2,285
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Swaps
Derivative [Line Items]
Notional amount	702,391	687,845
Derivative assets - Fair value	6,156	5,764
Derivative liabilities - Fair Value	4,712	3,336
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Purchased options
Derivative [Line Items]
Notional amount	87,036	537
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	127	16
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Collars
Derivative [Line Items]
Notional amount	165,537	83,864
Derivative assets - Fair value	1,027	370
Derivative liabilities - Fair Value	989	0
Foreign exchange contracts | Financial Counterparty | Derivative instruments not designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Notional amount	1,162,456	1,278,588
Derivative assets - Fair value	8,583	9,541
Derivative liabilities - Fair Value	$ 6,335	$ 5,637

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Securities (Other-Than-Temporary Impairment) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($)
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	101	184
Collateralized loan obligations (“CLOs”)
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	3
Mortgage backed securities issued by us government agencies and government sponsored enterprise
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	57	108
U.S. government agency and U.S. government sponsored enterprise debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	14
U.S. Treasury securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position		19
Foreign bonds
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position		16
Investment securities available for sale
Other than Temporary Impairment, Credit Losses Recognized in Earnings
OTTI credit losses | $	$ 0	$ 0	$ 0

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Securities Purchased under Resale Agreements and Sold under Repurchase Agreements (Repurchase Agreements) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amount of securities sold under repurchase agreements
Gross repurchase agreements	$ 450,000	$ 450,000
Weighted average interest rates (as a percent)	4.74%	4.46%	3.48%
Maturities in 2022	$ 150,000
Maturities in 2023	$ 300,000

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Derivatives (Hedged Items Currently Designated) (Details) - Derivative instruments designated as hedging instruments - Fair Value Hedging - Certificates of deposits - Interest rate contracts - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Hedged liability, fair value hedge, carrying value	$ (29,080)	$ (26,877)
Hedged liability, fair value hedge, cumulative decrease (increase), carrying value	$ 1,604	$ 4,141

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Derivatives (Notional and Fair Values) (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) MMBTU Boe company	Dec. 31, 2018 USD ($) MMBTU Boe company
Derivative Asset [Abstract]
Derivative assets - Fair value	$ 330,316	$ 107,816
Less: Master Netting Arrangements	(121,561)	(31,569)
Less: Cash collateral received or paid	(3,758)	(13,577)
Derivative asset, net	204,997	62,670
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	256,528	118,305
Less: Master Netting Arrangements	(121,561)	(31,569)
Less: Cash collateral received/paid	(38,238)	(6,833)
Derivative liability, net	$ 96,729	$ 79,903
Customer Counterparty | Crude Oil
Derivative Liability [Abstract]
Derivative, nonmonetary notional amount, energy measure | Boe	7,811	2,507
Customer Counterparty | Natural Gas
Derivative Liability [Abstract]
Derivative, nonmonetary notional amount, energy measure | MMBTU	63,773	14,722
Derivative instruments designated as hedging instruments
Derivative Instruments
Notional Amount	$ 117,193	$ 126,056
Derivative Asset [Abstract]
Derivative assets - Fair value	0	0
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	4,784	6,477
Derivative instruments designated as hedging instruments | Interest rate contracts
Derivative Instruments
Notional Amount	31,026	35,811
Derivative Asset [Abstract]
Derivative assets - Fair value	0	0
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	3,198	5,866
Derivative instruments designated as hedging instruments | Foreign exchange contracts
Derivative Instruments
Notional Amount	86,167	90,245
Derivative Asset [Abstract]
Derivative assets - Fair value	0	0
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	1,586	611
Derivative instruments not designated as hedging instruments
Derivative Instruments
Notional Amount	20,540,031	15,222,341
Derivative Asset [Abstract]
Derivative assets - Fair value	330,316	107,816
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	251,744	111,828
Derivative instruments not designated as hedging instruments | Interest rate contracts
Derivative Instruments
Notional Amount	15,489,692	11,695,499
Derivative Asset [Abstract]
Derivative assets - Fair value	192,883	69,818
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	124,119	69,267
Derivative instruments not designated as hedging instruments | Foreign exchange contracts
Derivative Instruments
Notional Amount	4,839,661	3,407,522
Derivative Asset [Abstract]
Derivative assets - Fair value	54,637	21,624
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	47,024	19,329
Derivative instruments not designated as hedging instruments | Credit contracts
Derivative Instruments
Notional Amount	210,678	119,320
Derivative Asset [Abstract]
Derivative assets - Fair value	2	1
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	84	164
Derivative instruments not designated as hedging instruments | Equity warrants
Derivative Instruments
Notional Amount	0	0
Derivative Asset [Abstract]
Derivative assets - Fair value	1,414	1,951
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	0	0
Derivative instruments not designated as hedging instruments | Commodity contracts
Derivative Instruments
Notional Amount	0	0
Derivative Asset [Abstract]
Derivative assets - Fair value	81,380	14,422
Derivative Liability [Abstract]
Derivative liabilities - Fair Value	$ 80,517	$ 23,068
Derivative instruments not designated as hedging instruments | Equity, Public Companies
Derivative Liability [Abstract]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	3	4
Derivative instruments not designated as hedging instruments | Equity, Private Companies
Derivative Liability [Abstract]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	18	18

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Derivatives (Offsetting of Derivatives) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Gross Amounts Recognized	$ 330,316	$ 107,816
Less: Master Netting Arrangements	(121,561)	(31,569)
Less: Cash collateral received or paid	(3,758)	(13,577)
Derivative asset, after netting	204,997	62,670
Less: Security Collateral Received	0	(13,975)
Net derivative assets	204,997	48,695
Derivative assets subject to master netting arrangements, gross amounts recognized	328,700	105,900
Contracts not subject to master netting arrangements, gross amounts recognized	1,600	2,000
Derivative, cash collateral received, including amount offset by fair value assets, and excess cash amount	3,800	15,800
Liabilities
Gross Amounts Recognized	256,528	118,305
Less: Master Netting Arrangements	(121,561)	(31,569)
Less: Cash collateral received/paid	(38,238)	(6,833)
Derivative liability, after netting	96,729	79,903
Less: Security Collateral Pledged	(79,619)	(11,231)
Net derivative liabilities	17,110	68,672
Derivative liability subject to master netting arrangements, gross amounts recognized	256,500	118,200
Contracts not subject to master netting arrangements, gross amounts recognized	20	102
Derivative, cash collateral posted against derivative liabilities, including amount offset the derivative fair value liabilities, and excess cash amount	$ 43,000	$ 8,400

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Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Interest and dividend income	$ 467,233	$ 476,912	$ 474,844	$ 463,311	$ 457,334	$ 422,185	$ 400,311	$ 371,873	$ 1,882,300	$ 1,651,703	$ 1,325,119
Interest expense	99,014	107,105	107,518	100,850	87,918	73,465	58,632	45,180	414,487	265,195	140,050
Net interest income before provision for credit losses	368,219	369,807	367,326	362,461	369,416	348,720	341,679	326,693	1,467,813	1,386,508	1,185,069
Provision for credit losses	18,577	38,284	19,245	22,579	17,959	10,542	15,536	20,218	98,685	64,255	46,266
Net interest income after provision for credit losses	349,642	331,523	348,081	339,882	351,457	338,178	326,143	306,475	1,369,128	1,322,253	1,138,803
Noninterest income	63,013	51,474	52,759	42,131	41,695	46,502	48,268	74,444	209,377	210,909	257,748
Noninterest expense	193,373	176,630	177,663	186,922	188,097	179,815	177,419	169,135	734,588	714,466	661,451
Income before income taxes	219,282	206,367	223,177	195,091	205,055	204,865	196,992	211,784	843,917	818,696	735,100
Income tax expense	31,067	34,951	72,797	31,067	32,037	33,563	24,643	24,752	169,882	114,995	229,476
NET INCOME	$ 188,215	$ 171,416	$ 150,380	$ 164,024	$ 173,018	$ 171,302	$ 172,349	$ 187,032	$ 674,035	$ 703,701	$ 505,624
EPS
Basic (in dollars per share)	$ 1.29	$ 1.18	$ 1.03	$ 1.13	$ 1.19	$ 1.18	$ 1.19	$ 1.29	$ 4.63	$ 4.86	$ 3.50
Diluted (in dollars per share)	$ 1.29	$ 1.17	$ 1.03	$ 1.12	$ 1.18	$ 1.17	$ 1.18	$ 1.28	$ 4.61	$ 4.81	$ 3.47
WEIGHTED-AVERAGE NUMBER OF SHARES OUTSTANDING
Basic (in shares)	145,624	145,559	145,546	145,256	144,960	144,921	144,899	144,664	145,497	144,862	144,444
Diluted (in shares)	146,318	146,120	146,052	145,921	146,133	146,173	146,091	145,939	146,179	146,169	145,913

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Business Segments (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Schedule of operating results and key financial measures by operating segments

The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2019
Net interest income before provision for credit losses	$	696,551	$	651,413	$	119,849	$	1,467,813
Provision for credit losses	14,178		84,507		—		98,685
Noninterest income	57,920		134,622		16,835		209,377
Noninterest expense	343,001		263,064		128,523		734,588
Segment income before income taxes	397,292		438,464		8,161		843,917
Segment net income	$	284,161	$	313,833	$	76,041	$	674,035
As of December 31, 2019
Segment assets	$	11,520,586	$	25,501,534	$	7,173,976	$	44,196,096

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2018
Net interest income before provision for credit losses	$	727,215	$	605,650	$	53,643		$	1,386,508
Provision for credit losses	9,364		54,891		—			64,255
Noninterest income	85,607		110,287		15,015			210,909
Noninterest expense	341,396		237,520		135,550			714,466
Segment income (loss) before income taxes	462,062		423,526		(66,892		)	818,696
Segment net income	$	330,683	$	303,553	$	69,465		$	703,701
As of December 31, 2018
Segment assets	$	10,587,621	$	23,761,469	$	6,693,266		$	41,042,356

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2017
Net interest income before provision for credit losses	$	590,821	$	553,817	$	40,431		$	1,185,069
Provision for credit losses	1,812		44,454		—			46,266
Noninterest income	54,451		110,089		93,208			257,748
Noninterest expense	323,318		200,153		137,980			661,451
Segment income (loss) before income taxes	320,142		419,299		(4,341		)	735,100
Segment net income	$	187,571	$	246,404	$	71,649		$	505,624
As of December 31, 2017
Segment assets	$	9,316,587	$	21,431,472	$	6,373,504		$	37,121,563

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Summary of Significant Accounting Policies (Premises and Equipment, net) (Details)	12 Months Ended
	Dec. 31, 2019
Buildings
Premises and equipment
Estimated useful life	25 years
Furniture, fixtures and equipment, building improvements | Minimum
Premises and equipment
Estimated useful life	3 years
Furniture, fixtures and equipment, building improvements | Maximum
Premises and equipment
Estimated useful life	7 years

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Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock	Common Stock and Additional Paid-In Capital	Retained Earnings	Treasury Stock	AOCI, net of Tax
Beginning balance at Dec. 31, 2016		$ 3,427,741		$ 1,727,598	$ 2,187,676	$ (439,387)	$ (48,146)
Balance (in shares) at Dec. 31, 2016			144,167,451
Increase (Decrease) in Stockholders' Equity
Net income		505,624			505,624
Other comprehensive income (loss)		10,627					10,627
Net activity of common stock pursuant to various stock compensation plans and agreements		14,957		27,897		(12,940)
Net activity of common stock pursuant to various stock compensation plans and agreements (in shares)			375,609
Cash dividends on common stock		(116,998)			(116,998)
Ending balance at Dec. 31, 2017		3,841,951		1,755,495	2,576,302	(452,327)	(37,519)
Balance (in shares) at Dec. 31, 2017			144,543,060
Increase (Decrease) in Stockholders' Equity
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[1]	0			6,656		(6,656)
Beginning balance at Dec. 31, 2017		3,841,951		1,755,495	2,576,302	(452,327)	(37,519)
Balance (in shares) at Dec. 31, 2017			144,543,060
Increase (Decrease) in Stockholders' Equity
Net income		703,701			703,701
Other comprehensive income (loss)		(14,384)					(14,384)
Net activity of common stock pursuant to various stock compensation plans and agreements		18,848		34,482		(15,634)
Net activity of common stock pursuant to various stock compensation plans and agreements (in shares)			418,303
Cash dividends on common stock		(125,982)			(125,982)
Ending balance at Dec. 31, 2018		4,423,974		1,789,977	3,160,132	(467,961)	(58,174)
Balance (in shares) at Dec. 31, 2018			144,961,363
Increase (Decrease) in Stockholders' Equity
Cumulative effect of change in accounting principle related to marketable equity securities	[2]	(160)			(545)		385
Net income		674,035			674,035
Other comprehensive income (loss)		39,766					39,766
Warrants exercised		4,443		1,711		2,732
Warrants exercised (in shares)			180,226
Net activity of common stock pursuant to various stock compensation plans and agreements		20,189		34,824		(14,635)
Net activity of common stock pursuant to various stock compensation plans and agreements (in shares)			483,796
Cash dividends on common stock		(155,300)			(155,300)
Ending balance at Dec. 31, 2019		$ 5,017,617		$ 1,826,512	$ 3,689,377	$ (479,864)	$ (18,408)
Balance (in shares) at Dec. 31, 2019			145,625,385

[1] Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements for additional information.

[2] Represents the impact of the adoption of Accounting Standards Update (“ASU”) 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) for additional information.

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Consolidated Balance Sheet - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 536,221	$ 516,291
Interest-bearing cash with banks	2,724,928	2,485,086
Cash and cash equivalents	3,261,149	3,001,377
Interest-bearing deposits with banks	196,161	371,000
Securities purchased under resale agreements (“resale agreements”)	860,000	1,035,000
Securities:
Available-for-sale (''AFS'') investment securities, at fair value (includes assets pledged as collateral of $479,432 in 2019 and $435,833 in 2018)	3,317,214	2,741,847
Restricted equity securities, at cost	78,580	74,069
Loans held-for-sale	434	275
Loans held-for-investment (net of allowance for loan losses of $358,287 in 2019 and $311,322 in 2018; includes assets pledged as collateral of $22,431,092 in 2019 and $20,590,035 in 2018)	34,420,252	32,073,867
Investments in qualified affordable housing partnerships, net	207,037	184,873
Investments in tax credit and other investments, net	254,140	231,635
Premises and equipment (net of accumulated depreciation of $116,790 in 2019 and $118,547 in 2018)	118,364	119,180
Goodwill	465,697	465,547
Operating lease right-of-use assets	99,973
Other assets	917,095	743,686
TOTAL	44,196,096	41,042,356
LIABILITIES
Noninterest-bearing	11,080,036	11,377,009
Interest-bearing	26,244,223	24,062,619
Total deposits	37,324,259	35,439,628
Short-term borrowings	28,669	57,638
Federal Home Loan Bank (“FHLB”) advances	745,915	326,172
Securities sold under repurchase agreements (“repurchase agreements”)	200,000	50,000
Long-term debt and finance lease liabilities	152,270
Long-term debt		146,835
Operating lease liabilities	108,083
Accrued expenses and other liabilities	619,283	598,109
Total liabilities	39,178,479	36,618,382
COMMITMENTS AND CONTINGENCIES (Note 15)
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167	166
Additional paid-in capital	1,826,345	1,789,811
Retained earnings	3,689,377	3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864)	(467,961)
Accumulated other comprehensive loss (“AOCI”), net of tax	(18,408)	(58,174)
Total stockholders’ equity	5,017,617	4,423,974
TOTAL	$ 44,196,096	$ 41,042,356

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Loans Receivable and Allowance for Credit Losses (Summary of Activities in Allowance for Unfunded Credit Reserves) (Details) - Allowance for Unfunded Credit Reserve - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for unfunded credit reserves
Beginning balance	$ 12,566	$ 13,318	$ 16,121
Reversal of unfunded credit commitments	(1,408)	(752)	(2,803)
Ending balance	$ 11,158	$ 12,566	$ 13,318

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Securities Purchased under Resale Agreements and Sold under Repurchase Agreements (Resale Agreements) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Resale agreements
Gross resale agreements	$ 1,110,000	$ 1,435,000
Weighted average yield (as a percent)	2.65%	2.63%	2.19%

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Loans Receivable and Allowance for Credit Losses (Credit Risk Ratings for Non-PCI and PCI Loans by Loan Type) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	$ 34,778,539	$ 32,385,189
Commercial Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	25,914,252	24,326,631
Commercial Lending | C&I
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	12,150,931	12,056,970
Commercial Lending | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,278,448	9,260,199
Commercial Lending | Residential loan | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,856,374	2,470,668
Commercial Lending | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	628,499	538,794
Commercial Lending | Total CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	13,763,321	12,269,661
Consumer Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,864,287	8,058,558
Consumer Lending | Residential loan | Single-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	7,108,590	6,036,454
Consumer Lending | HELOCs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	1,472,783	1,690,834
Consumer Lending | Total residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,581,373	7,727,288
Consumer Lending | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	282,914	331,270
Non-PCI loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	34,555,668	32,077,166
Non-PCI loans | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	33,582,886	31,413,557
Non-PCI loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	515,702	358,136
Non-PCI loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	440,105	295,058
Non-PCI loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	16,975	10,415
Non-PCI loans | Commercial Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	25,777,039	24,124,659
Non-PCI loans | Commercial Lending | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	24,836,765	23,489,906
Non-PCI loans | Commercial Lending | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	510,632	350,183
Non-PCI loans | Commercial Lending | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	412,667	274,155
Non-PCI loans | Commercial Lending | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	16,975	10,415
Non-PCI loans | Commercial Lending | C&I
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	12,149,121	12,054,818
Non-PCI loans | Commercial Lending | C&I | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	11,423,094	11,644,470
Non-PCI loans | Commercial Lending | C&I | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	406,543	260,089
Non-PCI loans | Commercial Lending | C&I | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	302,509	139,844
Non-PCI loans | Commercial Lending | C&I | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	16,975	10,415
Non-PCI loans | Commercial Lending | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,165,247	9,097,165
Non-PCI loans | Commercial Lending | CRE | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,003,749	8,957,228
Non-PCI loans | Commercial Lending | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	83,683	49,705
Non-PCI loans | Commercial Lending | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	77,815	90,232
Non-PCI loans | Commercial Lending | CRE | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Commercial Lending | Residential loan | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,834,212	2,433,924
Non-PCI loans | Commercial Lending | Residential loan | Multifamily | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,806,475	2,402,991
Non-PCI loans | Commercial Lending | Residential loan | Multifamily | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	20,406	20,551
Non-PCI loans | Commercial Lending | Residential loan | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	7,331	10,382
Non-PCI loans | Commercial Lending | Residential loan | Multifamily | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Commercial Lending | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	628,459	538,752
Non-PCI loans | Commercial Lending | Construction and land | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	603,447	485,217
Non-PCI loans | Commercial Lending | Construction and land | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	19,838
Non-PCI loans | Commercial Lending | Construction and land | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	25,012	33,697
Non-PCI loans | Commercial Lending | Construction and land | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Commercial Lending | Total CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	13,627,918	12,069,841
Non-PCI loans | Commercial Lending | Total CRE | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	13,413,671	11,845,436
Non-PCI loans | Commercial Lending | Total CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	104,089	90,094
Non-PCI loans | Commercial Lending | Total CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	110,158	134,311
Non-PCI loans | Commercial Lending | Total CRE | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Consumer Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,778,629	7,952,507
Non-PCI loans | Consumer Lending | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,746,121	7,923,651
Non-PCI loans | Consumer Lending | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	5,070	7,953
Non-PCI loans | Consumer Lending | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	27,438	20,903
Non-PCI loans | Consumer Lending | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Consumer Lending | Residential loan | Single-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	7,028,979	5,939,258
Non-PCI loans | Consumer Lending | Residential loan | Single-family | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	7,012,522	5,925,584
Non-PCI loans | Consumer Lending | Residential loan | Single-family | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,278	6,376
Non-PCI loans | Consumer Lending | Residential loan | Single-family | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	14,179	7,298
Non-PCI loans | Consumer Lending | Residential loan | Single-family | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Consumer Lending | HELOCs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	1,466,736	1,681,979
Non-PCI loans | Consumer Lending | HELOCs | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	1,453,207	1,669,300
Non-PCI loans | Consumer Lending | HELOCs | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,787	1,576
Non-PCI loans | Consumer Lending | HELOCs | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,742	11,103
Non-PCI loans | Consumer Lending | HELOCs | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Consumer Lending | Total residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,495,715	7,621,237
Non-PCI loans | Consumer Lending | Total residential mortgage | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	8,465,729	7,594,884
Non-PCI loans | Consumer Lending | Total residential mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	5,065	7,952
Non-PCI loans | Consumer Lending | Total residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	24,921	18,401
Non-PCI loans | Consumer Lending | Total residential mortgage | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
Non-PCI loans | Consumer Lending | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	282,914	331,270
Non-PCI loans | Consumer Lending | Other consumer | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	280,392	328,767
Non-PCI loans | Consumer Lending | Other consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	5	1
Non-PCI loans | Consumer Lending | Other consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	2,517	2,502
Non-PCI loans | Consumer Lending | Other consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	222,871	308,023
PCI Loans | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	211,635	285,201
PCI Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	1,277
PCI Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	11,236	21,545
PCI Loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	137,213	201,972
PCI Loans | Commercial Lending | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	126,269	181,098
PCI Loans | Commercial Lending | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,944	20,874
PCI Loans | Commercial Lending | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | C&I
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	1,810	2,152
PCI Loans | Commercial Lending | C&I | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	1,810	1,996
PCI Loans | Commercial Lending | C&I | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | C&I | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	156
PCI Loans | Commercial Lending | C&I | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	113,201	163,034
PCI Loans | Commercial Lending | CRE | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	102,257	143,839
PCI Loans | Commercial Lending | CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,944	19,195
PCI Loans | Commercial Lending | CRE | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Residential loan | Multifamily
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	22,162	36,744
PCI Loans | Commercial Lending | Residential loan | Multifamily | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	22,162	35,221
PCI Loans | Commercial Lending | Residential loan | Multifamily | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Residential loan | Multifamily | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	1,523
PCI Loans | Commercial Lending | Residential loan | Multifamily | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Construction and land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	40	42
PCI Loans | Commercial Lending | Construction and land | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	40	42
PCI Loans | Commercial Lending | Construction and land | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Construction and land | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Construction and land | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Total CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	135,403	199,820
PCI Loans | Commercial Lending | Total CRE | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	124,459	179,102
PCI Loans | Commercial Lending | Total CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Commercial Lending | Total CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	10,944	20,718
PCI Loans | Commercial Lending | Total CRE | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Consumer Lending
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	85,658	106,051
PCI Loans | Consumer Lending | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	85,366	104,103
PCI Loans | Consumer Lending | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	1,277
PCI Loans | Consumer Lending | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	292	671
PCI Loans | Consumer Lending | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Consumer Lending | Residential loan | Single-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	79,611	97,196
PCI Loans | Consumer Lending | Residential loan | Single-family | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	79,517	95,789
PCI Loans | Consumer Lending | Residential loan | Single-family | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	1,021
PCI Loans | Consumer Lending | Residential loan | Single-family | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	94	386
PCI Loans | Consumer Lending | Residential loan | Single-family | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Consumer Lending | HELOCs
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	6,047	8,855
PCI Loans | Consumer Lending | HELOCs | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	5,849	8,314
PCI Loans | Consumer Lending | HELOCs | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	256
PCI Loans | Consumer Lending | HELOCs | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	198	285
PCI Loans | Consumer Lending | HELOCs | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Consumer Lending | Total residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	85,658	106,051
PCI Loans | Consumer Lending | Total residential mortgage | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	85,366	104,103
PCI Loans | Consumer Lending | Total residential mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	1,277
PCI Loans | Consumer Lending | Total residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	292	671
PCI Loans | Consumer Lending | Total residential mortgage | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	0	0
PCI Loans | Consumer Lending | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held-for-investment	$ 0	$ 0

XML

Dispositions (Sales Leaseback) (Details) - Commercial Property In San Francisco $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Sale and leaseback transaction
Sales price	$ 120.6
Net book value	31.6
Pre-tax profit from sale	85.4
Selling costs	3.6
Current period gain recognized	71.7
Deferred gain	$ 13.7

XML

Fair Value Measurement and Fair Value of Financial Instruments (Quantitative Information for Significant Unobservable Inputs) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Quantitative information
Derivative assets - Fair value	$ 330,316	$ 107,816
Fair Value, Measurements, Recurring
Quantitative information
Derivative assets - Fair value	330,316	107,816
Fair Value, Measurements, Recurring | Equity warrants
Quantitative information
Derivative assets - Fair value	1,414	1,951
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Quantitative information
Derivative assets - Fair value	421	673
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants
Quantitative information
Derivative assets - Fair value	421	673
Fair Value, Measurements, Nonrecurring | Non-PCI impaired loans
Quantitative information
Non-PCI Impaired loans	49,679	32,858
Fair Value, Measurements, Nonrecurring | OREO
Quantitative information
Assets, fair value disclosure	125
Fair Value, Measurements, Nonrecurring | Investments in tax credit and other investments, net
Quantitative information
Assets, fair value disclosure	3,076
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans
Quantitative information
Non-PCI Impaired loans	49,679	32,858
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Discounted cash flows
Quantitative information
Non-PCI Impaired loans	27,841	16,921
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Collateral, Discount
Quantitative information
Non-PCI Impaired loans	1,014	2,751
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Collateral, Contract Value
Quantitative information
Non-PCI Impaired loans	20,824	11,499
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost
Quantitative information
Non-PCI Impaired loans		$ 1,687
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | OREO
Quantitative information
Assets, fair value disclosure	125
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Investments in tax credit and other investments, net
Quantitative information
Assets, fair value disclosure	$ 3,076
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants | Black-Scholes option pricing model | Minimum
Quantitative information
Measurement input	39.00%	49.00%
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants | Black-Scholes option pricing model | Maximum
Quantitative information
Measurement input	44.00%	52.00%
Equity volatility | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants | Black-Scholes option pricing model | Weighted Average
Quantitative information
Measurement input	42.00%	51.00%
Liquidity discount | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants
Quantitative information
Measurement input	47.00%	47.00%
Liquidity discount | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants | Weighted Average
Quantitative information
Measurement input	47.00%	47.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Discounted cash flows | Minimum
Quantitative information
Non-PCI impaired loans, measurement input	4.00%	4.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Discounted cash flows | Maximum
Quantitative information
Non-PCI impaired loans, measurement input	15.00%	7.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Discounted cash flows | Weighted Average
Quantitative information
Non-PCI impaired loans, measurement input	14.00%	6.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Collateral, Discount | Minimum
Quantitative information
Non-PCI impaired loans, measurement input	8.00%	15.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Collateral, Discount | Maximum
Quantitative information
Non-PCI impaired loans, measurement input	20.00%	50.00%
Discount | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Collateral, Discount | Weighted Average
Quantitative information
Non-PCI impaired loans, measurement input	19.00%	21.00%
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost
Quantitative information
Non-PCI impaired loans, measurement input		8.00%
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost | Weighted Average
Quantitative information
Non-PCI impaired loans, measurement input		8.00%
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | OREO | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost
Quantitative information
OREO, measurement input	0.08
Selling cost | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | OREO | Valuation Technique, Fair Value Of Valuation Technique, Fair Value Of Property, Selling Cost | Weighted Average
Quantitative information
OREO, measurement input	0.08

XML

Loans Receivable and Allowance for Credit Losses (Non-PCI TDR Modifications) (Details) - Non-PCI impaired loans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	$ 92,649	$ 12,081	$ 43,651
Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	31,611	6,891	19,164
Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,495	0	8,003
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691	752	0
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	39,852	4,438	16,484
Commercial Lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	91,023	10,272	43,496
Commercial Lending | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	31,611	5,472	19,164
Commercial Lending | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	7,848
Commercial Lending | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691	752	0
Commercial Lending | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	39,721	4,048	16,484
Commercial Lending | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	71,332	9,520	37,900
Commercial Lending | C&I | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	31,611	5,472	13,568
Commercial Lending | C&I | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	7,848
Commercial Lending | C&I | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Commercial Lending | C&I | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	39,721	4,048	16,484
Commercial Lending | CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment		752	2,627
Commercial Lending | CRE | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment		0	2,627
Commercial Lending | CRE | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment		0	0
Commercial Lending | CRE | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment		752	0
Commercial Lending | CRE | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment		0	0
Commercial Lending | Residential loan | Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment			2,969
Commercial Lending | Residential loan | Multifamily | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment			2,969
Commercial Lending | Residential loan | Multifamily | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment			0
Commercial Lending | Residential loan | Multifamily | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment			0
Commercial Lending | Residential loan | Multifamily | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment			0
Commercial Lending | Construction and land
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691
Commercial Lending | Construction and land | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0
Commercial Lending | Construction and land | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0
Commercial Lending | Construction and land | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691
Commercial Lending | Construction and land | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0
Commercial Lending | Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691	752	5,596
Commercial Lending | Total CRE | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	5,596
Commercial Lending | Total CRE | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Commercial Lending | Total CRE | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	19,691	752	0
Commercial Lending | Total CRE | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Consumer Lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,626	1,809	155
Consumer Lending | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	1,419	0
Consumer Lending | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,495	0	155
Consumer Lending | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Consumer Lending | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	131	390	0
Consumer Lending | Residential loan | Single-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,098	391
Consumer Lending | Residential loan | Single-family | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	66
Consumer Lending | Residential loan | Single-family | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,098	0
Consumer Lending | Residential loan | Single-family | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0
Consumer Lending | Residential loan | Single-family | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	325
Consumer Lending | HELOCs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	528	1,418	155
Consumer Lending | HELOCs | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	1,353	0
Consumer Lending | HELOCs | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	397	0	155
Consumer Lending | HELOCs | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Consumer Lending | HELOCs | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	131	65	0
Consumer Lending | Total residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,626	1,809	155
Consumer Lending | Total residential mortgage | Principal
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	1,419	0
Consumer Lending | Total residential mortgage | Principal and Interest
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	1,495	0	155
Consumer Lending | Total residential mortgage | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	0
Consumer Lending | Total residential mortgage | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Outstanding Recorded Investment	$ 131	$ 390	$ 0

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Parent Company Condensed Financial Statements (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
East West Bank
Condensed Financial Statements, Captions [Line Items]
Dividends declared	$ 190.0	$ 160.0	$ 255.0

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of components of income tax expenses

The following table presents the components of income tax expense for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Current income tax expense (benefit):
Federal	$	107,393		$	63,035		$	120,968
State	86,578			64,917			72,837
Foreign	(2,485		)	3,513			1,815
Total current income tax expense	191,486			131,465			195,620
Deferred income tax (benefit) expense:
Federal	(8,801		)	(11,870		)	40,057
State	(16,390		)	(4,600		)	(6,201		)
Foreign	3,587			—			—
Total deferred income tax (benefit) expense	(21,604		)	(16,470		)	33,856
Income tax expense	$	169,882		$	114,995		$	229,476

Schedule of reconciliation of the federal statutory rate to the effective income tax rate

The following table presents the reconciliation of the federal statutory rate to the Company’s effective tax rate for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
	2019		2018		2017
Statutory U.S. federal tax rate	21.0	%	21.0	%	35.0	%
U.S. state income taxes, net of U.S. federal income tax effect	7.1		5.8		5.9
The Tax Act	—		0.1		4.5
Tax credits and affordable housing, net of amortization	(10.4	)	(13.3	)	(15.1	)
Other, net	2.4		0.4		0.9
Effective tax rate	20.1	%	14.0	%	31.2	%

Schedule of tax effects of temporary differences that give rise to a significant portion of the deferred tax assets and liabilities

The tax effects of temporary differences that give rise to a significant portion of deferred tax assets and liabilities as of December 31, 2019 and 2018 are presented below:

($ in thousands)	December 31,
	2019			2018
Deferred tax assets:
Allowance for loan losses	$	109,903		$	96,876
Investments in qualified affordable housing partnerships, tax credit and other investments, net	11,190			3,691
Deferred compensation	23,816			18,724
Interest income on nonaccrual loans	9,527			8,602
State taxes	5,848			4,506
Unrealized gains/losses on securities	324			20,233
Tax credit carryforwards	—			26,831
Premises and equipment	1,578			1,887
Deferred gain	—			4,476
Lease liability	35,948			2,604
Other	641			6,178
Total gross deferred tax assets	198,775			194,608
Valuation allowance	(21		)	(128		)
Total deferred tax assets, net of valuation allowance	$	198,754		$	194,480
Deferred tax liabilities:
Equipment lease financing	$	30,669		$	30,523
Investments in qualified affordable housing partnerships, tax credit and other investments, net	12,301			30,706
Core deposit intangibles	3,032			4,427
FHLB stock dividends	1,854			1,866
Mortgage servicing assets	1,839			2,390
Acquired debt	1,679			1,771
Prepaid expenses	1,100			1,207
Premises and equipment	1,890			1,078
Operating lease right-of-use assets	34,313			—
Other	3,590			2,872
Total gross deferred tax liabilities	$	92,267		$	76,840
Net deferred tax assets	$	106,487		$	117,640

Summary of reconciliation of the beginning and ending amount of unrecognized tax benefits

The following table presents a reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Beginning balance	$	4,378		$	10,419		$	10,419
Additions for tax positions related to prior years	30,103			—			—
Deductions for tax positions related to prior years	(34,481		)	(3,969		)	—
Settlements with taxing authorities	—			(2,072		)	—
Ending balance	$	—		$	4,378		$	10,419

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Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Schedule of Lease Related Assets and Liabilities

The following table presents the lease related assets and liabilities recorded on the Consolidated Balance Sheet as of December 31, 2019:

($ in thousands)	Classification on the Consolidated Balance Sheet	December 31, 2019
Assets:
Operating lease assets	Operating lease right-of use assets	$	99,973
Finance lease assets	Premises and equipment	7,897
Total lease assets		$	107,870
Liabilities:
Operating lease liabilities	Operating lease liabilities	$	108,083
Finance lease liabilities	Long-term debt and finance lease liabilities	5,169
Total lease liabilities		$	113,252

Schedule of Lease Costs

The following table presents the components of lease expense for operating and finance leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Operating lease cost	$	34,850
Finance lease cost:
Amortization of right-of-use assets	807
Interest on lease liabilities	161
Variable lease cost	120
Sublease income	(81		)
Net lease cost	$	35,857

Schedule of Supplemental Lease Information

The following table presents the supplemental cash flow information related to leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	35,496
Operating cash flows from finance leases	$	161
Financing cash flows from finance leases	$	883
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases	$	21,716
Financing leases	$	304

The following table presents the weighted-average remaining lease terms and discount rates related to leases as of December 31, 2019:

	December 31, 2019
Weighted-average remaining lease term (in years):
Operating leases	4.6
Finance leases	16.2
Weighted-average discount rate:
Operating leases	3.19	%
Finance leases	2.84	%

Schedule of Finance Leases, Undiscounted Cash Flow Maturities

The following table presents a maturity analysis of the Company’s operating and finance lease liabilities as of December 31, 2019:

($ in thousands)	Operating Leases			Finance Leases
2020	$	32,590		$	1,059
2021	28,761			1,053
2022	19,073			698
2023	12,069			403
2024	9,150			157
Thereafter	14,636			3,305
Total minimum lease payments	$	116,279		$	6,675
Less: imputed interest	(8,196		)	(1,506		)
Present value of lease liabilities	$	108,083		$	5,169

Schedule of Operating Leases, Undiscounted Cash Flow Maturities

The following table presents a maturity analysis of the Company’s operating and finance lease liabilities as of December 31, 2019:

($ in thousands)	Operating Leases			Finance Leases
2020	$	32,590		$	1,059
2021	28,761			1,053
2022	19,073			698
2023	12,069			403
2024	9,150			157
Thereafter	14,636			3,305
Total minimum lease payments	$	116,279		$	6,675
Less: imputed interest	(8,196		)	(1,506		)
Present value of lease liabilities	$	108,083		$	5,169

Schedule of Net Investment of Direct Financing and Sales-type Leases

The following table presents the components of the net investment in direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	December 31, 2019
Lease receivables	$	126,517
Unguaranteed residual assets	14,793
Net investment in direct financing and sales-type leases	$	141,310

Schedule of Future Minimum Lease Payments Expected To Be Received Under The Direct Financing And Sales-Type Leases

The following table presents future minimum lease payments that are expected to be received under the direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	Direct Financing and Sales-Type Leases
2020	$	27,580
2021	25,548
2022	18,154
2023	11,960
2024	8,512
Thereafter	11,708
Total minimum lease payments	$	103,462
Less: imputed interest	(9,783		)
Present value of lease receivables	$	93,679

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Regulatory Requirements and Matters (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Capital adequacy
Tier one common equity for capital adequacy to risk weighted assets	4.50%
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%
Capital required for capital adequacy to risk weighted assets	8.00%
Fully phased-in capital conservation buffer	2.50%
East West Bank
Capital adequacy
Daily average reserve requirement	$ 829.0	$ 707.3

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Commitments, Contingencies and Related Party Transactions

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies and Related Party Transactions

Commitments, Contingencies and Related Party Transactions

Commitments to Extend Credit — In the normal course of business, the Company provides customers loan commitments on predetermined terms. These outstanding commitments to extend credit are not reflected in the accompanying Consolidated Financial Statements. While the Company does not anticipate losses as a result of these transactions, commitments to extend credit are included in determining the appropriate level of the allowance for unfunded commitments, and outstanding commercial and SBLCs.

The following table presents the Company’s credit-related commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Loan commitments	$	5,330,211	$	5,147,821
Commercial letters of credit and SBLCs	$	1,860,414	$	1,796,647

Loan commitments are agreements to lend to customers provided that there are no violations of any conditions established in the agreement. Commitments generally have fixed expiration dates or other termination clauses and may require maintenance of compensatory balances. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements.

Commercial letters of credit are issued to facilitate domestic and foreign trade transactions, while SBLCs are generally contingent upon the failure of the customers to perform according to the terms of the underlying contract with the third party. As a result, the total contractual amounts do not necessarily represent future funding requirements. The Company’s historical experience is that SBLCs typically expire without being funded. Additionally, in many cases, the Company holds collateral in various forms against these SBLCs. As part of its risk management activities, the Company monitors the creditworthiness of customers in conjunction with its SBLC exposure. Customers are obligated to reimburse the Company for any payment made on the customers’ behalf. If the customers fail to pay, the Company would, as applicable, liquidate the collateral and/or offset accounts. As of December 31, 2019, total letters of credit of $1.86 billion were comprised of SBLCs of $1.81 billion and commercial letters of credit of $48.5 million.

The Company applies the same credit underwriting criteria to extend loans, commitments and conditional obligations to customers. Each customer’s creditworthiness is evaluated on a case-by-case basis. Collateral and financial guarantees may be obtained based on management’s assessment of a customer’s credit. Collateral may include cash, accounts receivable, inventory, property, plant and equipment, and income-producing commercial property.

Estimated exposure to loss from these commitments is included in the allowance for unfunded credit commitments, and amounted to $11.1 million as of December 31, 2019 and $12.4 million as of December 31, 2018. These amounts are included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.

Guarantees — The Company sells or securitizes single-family and multifamily residential loans with recourse in the ordinary course of business. The recourse component of the loans sold or securitized with recourse is considered a guarantee. As the guarantor, the Company is obligated to repurchase up to the recourse component of the loans if the loans default. The following table presents the types of guarantees the Company had outstanding as of December 31, 2019 and 2018:

($ in thousands)	Maximum Potential Future Payments				Carrying Value
	December 31,				December 31,
	2019		2018		2019		2018
Single-family residential loans sold or securitized with recourse	$	12,578	$	16,700	$	12,578	$	16,700
Multifamily residential loans sold or securitized with recourse	15,892		17,058		40,708		69,974
Total	$	28,470	$	33,758	$	53,286	$	86,674

The Company’s recourse reserve related to these guarantees is included in the allowance for unfunded credit commitments and totaled $76 thousand and $123 thousand as of December 31, 2019 and 2018, respectively. The allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Company continues to experience minimal losses from the single-family and multifamily residential loan portfolios sold or securitized with recourse.

Litigation — The Company is a party to various legal actions arising in the course of its business. In accordance with ASC 450, Contingencies, the Company accrues reserves for outstanding lawsuits, claims and proceedings when a loss contingency is probable and can be reasonably estimated. The Company estimates the amount of loss contingencies using current available information from legal proceedings, advice from legal counsel and available insurance coverage. Due to the inherent subjectivity of the assessments and unpredictability of the outcomes of the legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, the Company’s exposure and ultimate losses may be higher, and possibly significantly more than the amounts accrued.

Other Commitments — The Company has commitments to invest in qualified affordable housing partnerships, tax credit and other investments as discussed in Note 8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities to the Consolidated Financial Statements in this Form 10-K. As of December 31, 2019 and 2018, these commitments were $193.8 million and $161.0 million, respectively. These commitments are included in Accrued expenses and other liabilities on the Consolidated Balance Sheet.

Related Party Transactions — In the ordinary course of business, the Company may extend credit to related parties, including executive officers, directors and principal shareholders. These related party loans were not material for the years ended December 31, 2019 and 2018.

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Federal Home Loan Bank Advances and Long-Term Debt (Term Loan) (Details) - USD ($)	12 Months Ended	30 Months Ended
	Dec. 31, 2013	Dec. 31, 2018	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt		$ 146,835,000
Term loan
Debt Instrument [Line Items]
Term loan, face amount	$ 100,000,000.0
Term	3 years
Quarterly principal repayment		5,000,000.0
Long-term debt		$ 0	$ 0
LIBOR | Term loan
Debt Instrument [Line Items]
Stated Interest Rate, basis spread (as a percent)	1.50%
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Weighted Average | Term loan
Debt Instrument [Line Items]
Weighted-average rate (as a percent)		3.60%

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Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current income tax expense (benefit):
Federal									$ 107,393	$ 63,035	$ 120,968
State									86,578	64,917	72,837
Foreign									(2,485)	3,513	1,815
Total current income tax expense									191,486	131,465	195,620
Deferred income tax (benefit) expense:
Federal									(8,801)	(11,870)	40,057
State									(16,390)	(4,600)	(6,201)
Foreign									3,587	0	0
Total deferred income tax (benefit) expense									(21,604)	(16,470)	33,856
Income tax expense	$ 31,067	$ 34,951	$ 72,797	$ 31,067	$ 32,037	$ 33,563	$ 24,643	$ 24,752	$ 169,882	$ 114,995	$ 229,476

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Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in the components of AOCI balances for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	AFS Investment Securities			Foreign Currency Translation Adjustments (1)			Total
Balance, December 31, 2016	$	(28,772	)	$	(19,374	)	$	(48,146	)
Net unrealized gains arising during the period	2,531			12,753			15,284
Amounts reclassified from AOCI	(4,657		)	—			(4,657		)
Changes, net of tax	(2,126		)	12,753			10,627
Balance, December 31, 2017	$	(30,898	)	$	(6,621	)	$	(37,519	)
Cumulative effect of change in accounting principle related to marketable equity securities (2)	385			—			385
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate (3)	(6,656		)	—			(6,656		)
Balance, January 1, 2018, adjusted	(37,169		)	(6,621		)	(43,790		)
Net unrealized losses arising during the period	(6,866		)	(5,732		)	(12,598		)
Amounts reclassified from AOCI	(1,786		)	—			(1,786		)
Changes, net of tax	(8,652		)	(5,732		)	(14,384		)
Balance, December 31, 2018	$	(45,821	)	$	(12,353	)	$	(58,174	)
Net unrealized gains (losses) arising during the period	46,170			(3,636		)	42,534
Amounts reclassified from AOCI	(2,768		)	—			(2,768		)
Changes, net of tax	43,402			(3,636		)	39,766
Balance, December 31, 2019	$	(2,419	)	$	(15,989	)	$	(18,408	)

(1) Represents foreign currency translation adjustments related to the Company’s net investment in non-U.S. operations, including related hedges. The functional currency and reporting currency of the Company’s foreign subsidiary was RMB and USD, respectively.

(2) Represents the impact of the adoption of ASU 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018.

(3) Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018.

The following table presents the components of other comprehensive income (loss), reclassifications to net income and the related tax effects for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019									2018								2017
	Before - Tax			Tax Effect			Net-of- Tax			Before - Tax			Tax Effect		Net-of- Tax			Before - Tax			Tax Effect			Net-of- Tax
AFS investment securities:
Net unrealized gains (losses) arising during the period	$	65,549		$	(19,379	)	$	46,170		$	(9,748	)	$	2,882	$	(6,866	)	$	4,368		$	(1,837	)	$	2,531
Net realized gains reclassified into net income (1)	(3,930		)	1,162			(2,768		)	(2,535		)	749		(1,786		)	(8,037		)	3,380			(4,657		)
Net change	61,619			(18,217		)	43,402			(12,283		)	3,631		(8,652		)	(3,669		)	1,543			(2,126		)
Foreign currency translation adjustments, net of hedges:
Net unrealized gains (losses) arising during the period (2)	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Net change	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Other comprehensive income (loss)	$	61,909		$	(22,143	)	$	39,766		$	(18,015	)	$	3,631	$	(14,384	)	$	9,084		$	1,543		$	10,627

(1) For the years ended December 31, 2019, 2018 and 2017, pre-tax amounts were reported in Net gains on sales of AFS investment securities on the Consolidated Statement of Income.

(2)

The tax effects on foreign currency translation adjustments represent the cumulative net deferred tax liabilities since inception on net investment hedges that were recorded during the year ended December 31, 2019.

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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Investments in Tax Credit and Other Investments, Net) (Details)	3 Months Ended		12 Months Ended			60 Months Ended
	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) fund
Investments in Tax Credit and Other Investments, Net
Investments in tax credit and other investments, net	$ 254,140,000		$ 254,140,000	$ 231,635,000		$ 231,635,000
Accrued expenses and other liabilities — Unfunded commitments	113,515,000		113,515,000	80,228,000		80,228,000
Amortization of tax credit and other investments			85,515,000	89,628,000	$ 87,950,000
Equity securities without readily determinable fair values at carrying value	19,100,000		19,100,000	14,200,000		14,200,000
Price adjustment to equity securities			0	0
Available-for-sale debt securities, Fair Value	3,317,214,000		3,317,214,000	2,741,847,000		2,741,847,000
DC Solar Tax Credit Investments
Investments in Tax Credit and Other Investments, Net
Investments in tax credit and other investments, net				7,000,000.0		$ 7,000,000.0
Number of tax credit funds | fund						4
Pre-tax impairment charge or recovery	1,600,000		1,600,000
Expected Future Cash Flows		$ 0
Accrued Expenses And Other Liabilities, Unfunded Commitments | DC Solar Tax Credit Investments
Investments in Tax Credit and Other Investments, Net
Accrued expenses and other liabilities — Unfunded commitments	0		0	0		$ 0
Amortization of Tax Credit And Other Investments
Investments in Tax Credit and Other Investments, Net
Pre-tax impairment charge			14,600,000
Pre-tax impairment charge or recovery				$ 0
Amortization of Tax Credit And Other Investments | DC Solar Tax Credit Investments
Investments in Tax Credit and Other Investments, Net
Pre-tax impairment charge		$ 7,000,000.0
Collateralized loan obligations (“CLOs”)
Investments in Tax Credit and Other Investments, Net
Available-for-sale debt securities, Fair Value	$ 284,706,000		$ 284,706,000

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Loans Receivable and Allowance for Credit Losses (Accretable Yield for PCI Loans) (Details) - PCI Loans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Changes in the accretable yield for the PCI loans
Accretable yield for PCI loans, beginning of period	$ 74,870	$ 101,977	$ 136,247
Accretion	(24,220)	(34,662)	(42,487)
Changes in expected cash flows	(140)	7,555	8,217
Accretable yield for PCI loans, ending of period	$ 50,510	$ 74,870	$ 101,977

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Goodwill and Other Intangible Assets (Core Deposit Intangibles) (Details) - Core Deposit Intangibles - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Impairment write-offs/write downs on the remaining core deposit intangibles		$ 0	$ 0	$ 0
Gross balance		86,099,000	86,099,000
Accumulated amortization		(76,088,000)	(71,570,000)
Net carrying balance		$ 10,011,000	$ 14,529,000
Desert Community Bank
Finite-Lived Intangible Assets [Line Items]
Impairment write-offs/write downs on the remaining core deposit intangibles	$ 1,000,000.0

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Loans Receivable and Allowance for Credit Losses (Composition of Non-PCI and PCI Loans- Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) property_unit	Dec. 31, 2018 USD ($)
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans receivable pledged to secure borrowings and to provide additional borrowing capacity from the FHLB and the Federal Reserve Bank | $	$ 22,431,092	$ 20,590,035
Consumer Lending | Single-family residential and home equity line of credit
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loan to value ratio	60.00%
Multifamily | Commercial Lending | Minimum
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Number of units in multifamily properties used to secure multifamily residential loans | property_unit	5

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Summary of Significant Accounting Policies (New Accounting Pronouncements Adopted) (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019		Dec. 31, 2018	Jan. 01, 2018	[2]
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Cumulative effect of change in accounting principle			$ 10,510	[1]		$ (160)
Operating lease right-of-use assets		$ 99,973
Operating lease liabilities		108,083
Reserve for credit losses including unfunded credit commitments		358,287			$ 311,322
Retained Earnings
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Cumulative effect of change in accounting principle			10,510	[1]		$ (545)
Accounting Standards Update 2016-02
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Operating lease right-of-use assets			109,100
Operating lease liabilities			117,700
Accounting Standards Update 2016-02 | Retained Earnings
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Cumulative effect of change in accounting principle			$ 10,500
Accounting Standards Update 2016-13
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Reserve for credit losses including unfunded credit commitments		$ 369,400
Accounting Standards Update 2016-13 | Subsequent Event
New Accounting Pronouncements Adopted and Recent Accounting Pronouncements [Line Items]
Percentage increase to reserve for credit losses, including unfunded credit commitments	34.00%

[1] Represents the impact of the adoption of ASU 2016-02, Leases (Topic 842) and subsequent related ASUs in the first quarter of 2019. Refer to Note 1 — Summary of Significant Accounting Policies and Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K for additional information.

[2] Represents the impact of the adoption of Accounting Standards Update (“ASU”) 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) for additional information.

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Fair Value Measurement and Fair Value of Financial Instruments (Reconciliation of Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity warrants | Lending fees
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Total unrealized (losses) gains for the period included in earnings	$ (292)	$ 225	$ 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	673	679	0
Transfer of investment security from held-to-maturity to AFS	0	0	0
Total gains included in earnings	563	162	0
Issuances	114	65	679
Sales	0	0	0
Settlements	(929)	(233)	0
Ending balance	$ 421	673	679
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Other Securities
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance		$ 0	0
Transfer of investment security from held-to-maturity to AFS			115,615
Total gains included in earnings			1,156
Issuances			0
Sales			(116,771)
Settlements			0
Ending balance			$ 0

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Loans Receivable and Allowance for Credit Losses (Additions to Non-PCI TDRs) (Details) - Non-PCI impaired loans $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Loans Modified as TDRs
Post-Modification Outstanding Recorded Investment	$ 92,649	$ 12,081	$ 43,651
Commercial Lending
Loans Modified as TDRs
Number of Loans | loan	9	9	21
Pre-Modification Outstanding Recorded Investment	$ 115,438	$ 12,116	$ 50,214
Post-Modification Outstanding Recorded Investment	91,023	10,272	43,496
Financial Impact	$ 8,004	$ 699	$ 11,677
Commercial Lending | C&I
Loans Modified as TDRs
Number of Loans | loan	8	8	16
Pre-Modification Outstanding Recorded Investment	$ 95,742	$ 11,366	$ 43,884
Post-Modification Outstanding Recorded Investment	71,332	9,520	37,900
Financial Impact	$ 8,004	$ 699	$ 11,520
Commercial Lending | CRE
Loans Modified as TDRs
Number of Loans | loan		1	4
Pre-Modification Outstanding Recorded Investment		$ 750	$ 2,675
Post-Modification Outstanding Recorded Investment		752	2,627
Financial Impact		$ 0	$ 157
Commercial Lending | Residential loan | Multifamily
Loans Modified as TDRs
Number of Loans | loan			1
Pre-Modification Outstanding Recorded Investment			$ 3,655
Post-Modification Outstanding Recorded Investment			2,969
Financial Impact			$ 0
Commercial Lending | Construction and land
Loans Modified as TDRs
Number of Loans | loan	1
Pre-Modification Outstanding Recorded Investment	$ 19,696
Post-Modification Outstanding Recorded Investment	19,691
Financial Impact	$ 0
Commercial Lending | Total CRE
Loans Modified as TDRs
Number of Loans | loan	1	1	5
Pre-Modification Outstanding Recorded Investment	$ 19,696	$ 750	$ 6,330
Post-Modification Outstanding Recorded Investment	19,691	752	5,596
Financial Impact	$ 0	$ 0	$ 157
Consumer Lending
Loans Modified as TDRs
Number of Loans | loan	4	4	1
Pre-Modification Outstanding Recorded Investment	$ 1,662	$ 1,951	$ 152
Post-Modification Outstanding Recorded Investment	1,626	1,809	155
Financial Impact	$ 2	$ 28	$ 0
Consumer Lending | Residential loan | Single-family
Loans Modified as TDRs
Number of Loans | loan	2	2
Pre-Modification Outstanding Recorded Investment	$ 1,123	$ 405
Post-Modification Outstanding Recorded Investment	1,098	391
Financial Impact	$ 2	$ 28
Consumer Lending | HELOCs
Loans Modified as TDRs
Number of Loans | loan	2	2	1
Pre-Modification Outstanding Recorded Investment	$ 539	$ 1,546	$ 152
Post-Modification Outstanding Recorded Investment	528	1,418	155
Financial Impact	$ 0	$ 0	$ 0
Consumer Lending | Total residential mortgage
Loans Modified as TDRs
Number of Loans | loan	4	4	1
Pre-Modification Outstanding Recorded Investment	$ 1,662	$ 1,951	$ 152
Post-Modification Outstanding Recorded Investment	1,626	1,809	155
Financial Impact	$ 2	$ 28	$ 0

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Loans Receivable and Allowance for Credit Losses (Summary of Activities in Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for loan losses
Allowance, beginning of period	$ 311,322	$ 287,128
Gross charge-offs	(789)	(14,600)	$ (473)
Allowance, end of period	358,287	311,322	287,128
Commercial Lending | C&I
Allowance for loan losses
Allowance, beginning of period	189,117
Allowance, end of period	238,376	189,117
Commercial Lending | CRE
Allowance for loan losses
Allowance, beginning of period	40,666
Allowance, end of period	40,509	40,666
Commercial Lending | Residential loan | Multifamily
Allowance for loan losses
Allowance, beginning of period	19,885
Allowance, end of period	22,826	19,885
Commercial Lending | Construction and land
Allowance for loan losses
Allowance, beginning of period	20,290
Allowance, end of period	19,404	20,290
Consumer Lending | Residential loan | Single-family
Allowance for loan losses
Allowance, beginning of period	31,340
Allowance, end of period	28,527	31,340
Consumer Lending | HELOCs
Allowance for loan losses
Allowance, beginning of period	5,774
Allowance, end of period	5,265	5,774
Consumer Lending | Other consumer
Allowance for loan losses
Allowance, beginning of period	4,250
Allowance, end of period	3,380	4,250
Non-PCI loans
Allowance for loan losses
Allowance, beginning of period	311,300	287,070	260,402
Provision for (reversal of) on loans	100,115	65,043	49,129
Gross charge-offs	(75,067)	(59,433)	(38,975)
Gross recoveries	22,264	19,363	15,820
Net charge-offs	(52,803)	(40,070)	(23,155)
Foreign currency translation adjustments	(325)	(743)	694
Allowance, end of period	358,287	311,300	287,070
Non-PCI loans | Commercial Lending | C&I
Allowance for loan losses
Gross charge-offs	(73,985)	(59,244)	(38,118)
Gross recoveries	14,501	10,417	11,371
Non-PCI loans | Commercial Lending | CRE
Allowance for loan losses
Gross charge-offs	(1,021)	0	0
Gross recoveries	5,209	5,194	2,111
Non-PCI loans | Commercial Lending | Residential loan | Multifamily
Allowance for loan losses
Gross charge-offs	0	0	(635)
Gross recoveries	1,856	1,757	1,357
Non-PCI loans | Commercial Lending | Construction and land
Allowance for loan losses
Gross charge-offs	0	0	(149)
Gross recoveries	536	740	259
Non-PCI loans | Commercial Lending | Total CRE
Allowance for loan losses
Gross charge-offs	(1,021)	0	(784)
Gross recoveries	7,601	7,691	3,727
Non-PCI loans | Consumer Lending | Residential loan | Single-family
Allowance for loan losses
Gross charge-offs	(11)	(1)	(1)
Gross recoveries	136	1,214	546
Non-PCI loans | Consumer Lending | HELOCs
Allowance for loan losses
Gross charge-offs	0	0	(55)
Gross recoveries	7	38	24
Non-PCI loans | Consumer Lending | Total residential mortgage
Allowance for loan losses
Gross charge-offs	(11)	(1)	(56)
Gross recoveries	143	1,252	570
Non-PCI loans | Consumer Lending | Other consumer
Allowance for loan losses
Gross charge-offs	(50)	(188)	(17)
Gross recoveries	19	3	152
PCI Loans
Allowance for loan losses
Allowance, beginning of period	22	58	118
Provision for (reversal of) on loans	(22)	(36)	(60)
Allowance, end of period	0	22	$ 58
PCI Loans | Commercial Lending | C&I
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	0	0
PCI Loans | Commercial Lending | CRE
Allowance for loan losses
Allowance, beginning of period	22
Allowance, end of period	0	22
PCI Loans | Commercial Lending | Residential loan | Multifamily
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	0	0
PCI Loans | Commercial Lending | Construction and land
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	0	0
PCI Loans | Consumer Lending | Residential loan | Single-family
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	0	0
PCI Loans | Consumer Lending | HELOCs
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	0	0
PCI Loans | Consumer Lending | Other consumer
Allowance for loan losses
Allowance, beginning of period	0
Allowance, end of period	$ 0	$ 0

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Fair Value Measurement and Fair Value of Financial Instruments (Carrying and Fair Values Estimates per the Fair Value Hierarchy of Financial Instruments on a nonrecurring basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financial assets:
Cash and cash equivalents	$ 3,261,149	$ 3,001,377
Interest-bearing deposits with banks	196,161	371,000
Resale agreements	860,000	1,035,000
Restricted equity securities, at cost	78,580	74,069
Loans held-for-sale	434	275
Loans held-for-investment, net	34,420,252	32,073,867
Financial liabilities:
Time deposits	10,214,308
Short-term borrowings	28,669	57,638
Federal Home Loan Bank (“FHLB”) advances	745,915	326,172
Repurchase agreements	200,000	50,000
Long-term debt		146,835
Gross repurchase agreements	450,000	450,000
Carrying amount of repurchase agreements eligible for netting against resale agreements	250,000	400,000
Carrying Amount
Financial assets:
Cash and cash equivalents	3,261,149	3,001,377
Interest-bearing deposits with banks	196,161	371,000
Resale agreements	860,000	1,035,000
Restricted equity securities, at cost	78,580	74,069
Loans held-for-sale	434	275
Loans held-for-investment, net	34,420,252	32,073,867
Mortgage servicing rights	6,068	7,836
Accrued interest receivable	144,599	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	27,109,951	26,370,562
Time deposits	10,214,308	9,069,066
Short-term borrowings	28,669	57,638
Federal Home Loan Bank (“FHLB”) advances	745,915	326,172
Repurchase agreements	200,000	50,000
Long-term debt	147,101	146,835
Accrued interest payable	27,246	22,893
Estimated Fair Value
Financial assets:
Cash and cash equivalents	3,261,149	3,001,377
Interest-bearing deposits with banks	196,161	371,000
Resale agreements	856,025	1,016,724
Restricted equity securities, at cost	78,580	74,069
Loans held-for-sale	434	275
Loans held-for-investment, net	35,021,300	32,273,157
Mortgage servicing rights	8,199	11,427
Accrued interest receivable	144,599	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	27,109,951	26,370,562
Time deposits	10,208,895	9,084,597
Short-term borrowings	28,669	57,638
Federal Home Loan Bank (“FHLB”) advances	755,371	334,793
Repurchase agreements	232,597	87,668
Long-term debt	152,641	152,556
Accrued interest payable	27,246	22,893
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	3,261,149	3,001,377
Interest-bearing deposits with banks	0	0
Resale agreements	0	0
Restricted equity securities, at cost	0	0
Loans held-for-sale	0	0
Loans held-for-investment, net	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	0	0
Financial liabilities:
Demand, checking, savings and money market deposits	0	0
Time deposits	0	0
Short-term borrowings	0	0
Federal Home Loan Bank (“FHLB”) advances	0	0
Repurchase agreements	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing deposits with banks	196,161	371,000
Resale agreements	856,025	1,016,724
Restricted equity securities, at cost	78,580	74,069
Loans held-for-sale	434	275
Loans held-for-investment, net	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	144,599	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	27,109,951	26,370,562
Time deposits	10,208,895	9,084,597
Short-term borrowings	28,669	57,638
Federal Home Loan Bank (“FHLB”) advances	755,371	334,793
Repurchase agreements	232,597	87,668
Long-term debt	152,641	152,556
Accrued interest payable	27,246	22,893
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing deposits with banks	0	0
Resale agreements	0	0
Restricted equity securities, at cost	0	0
Loans held-for-sale	0	0
Loans held-for-investment, net	35,021,300	32,273,157
Mortgage servicing rights	8,199	11,427
Accrued interest receivable	0	0
Financial liabilities:
Demand, checking, savings and money market deposits	0	0
Time deposits	0	0
Short-term borrowings	0	0
Federal Home Loan Bank (“FHLB”) advances	0	0
Repurchase agreements	0	0
Long-term debt	0	0
Accrued interest payable	$ 0	$ 0

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Business Segments (Operating Results and Other Key Financial Measures) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information
Net interest income before provision for credit losses	$ 368,219	$ 369,807	$ 367,326	$ 362,461	$ 369,416	$ 348,720	$ 341,679	$ 326,693	$ 1,467,813	$ 1,386,508	$ 1,185,069
Provision for credit losses	18,577	38,284	19,245	22,579	17,959	10,542	15,536	20,218	98,685	64,255	46,266
Noninterest income	63,013	51,474	52,759	42,131	41,695	46,502	48,268	74,444	209,377	210,909	257,748
Noninterest expense	193,373	176,630	177,663	186,922	188,097	179,815	177,419	169,135	734,588	714,466	661,451
INCOME BEFORE INCOME TAXES	219,282	206,367	223,177	195,091	205,055	204,865	196,992	211,784	843,917	818,696	735,100
Segment net income	188,215	$ 171,416	$ 150,380	$ 164,024	173,018	$ 171,302	$ 172,349	$ 187,032	674,035	703,701	505,624
Segment assets	44,196,096				41,042,356				44,196,096	41,042,356	37,121,563
Consumer and Business Banking
Segment Reporting Information
Net interest income before provision for credit losses									696,551	727,215	590,821
Provision for credit losses									14,178	9,364	1,812
Noninterest income									57,920	85,607	54,451
Noninterest expense									343,001	341,396	323,318
INCOME BEFORE INCOME TAXES									397,292	462,062	320,142
Segment net income									284,161	330,683	187,571
Segment assets	11,520,586				10,587,621				11,520,586	10,587,621	9,316,587
Commercial Banking
Segment Reporting Information
Net interest income before provision for credit losses									651,413	605,650	553,817
Provision for credit losses									84,507	54,891	44,454
Noninterest income									134,622	110,287	110,089
Noninterest expense									263,064	237,520	200,153
INCOME BEFORE INCOME TAXES									438,464	423,526	419,299
Segment net income									313,833	303,553	246,404
Segment assets	25,501,534				23,761,469				25,501,534	23,761,469	21,431,472
Other
Segment Reporting Information
Net interest income before provision for credit losses									119,849	53,643	40,431
Provision for credit losses									0	0	0
Noninterest income									16,835	15,015	93,208
Noninterest expense									128,523	135,550	137,980
INCOME BEFORE INCOME TAXES									8,161	(66,892)	(4,341)
Segment net income									76,041	69,465	71,649
Segment assets	$ 7,173,976				$ 6,693,266				$ 7,173,976	$ 6,693,266	$ 6,373,504

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Commitments, Contingencies and Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of credit-related commitments

The following table presents the Company’s credit-related commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Loan commitments	$	5,330,211	$	5,147,821
Commercial letters of credit and SBLCs	$	1,860,414	$	1,796,647

Schedule of guarantees outstanding

The following table presents the types of guarantees the Company had outstanding as of December 31, 2019 and 2018:

($ in thousands)	Maximum Potential Future Payments				Carrying Value
	December 31,				December 31,
	2019		2018		2019		2018
Single-family residential loans sold or securitized with recourse	$	12,578	$	16,700	$	12,578	$	16,700
Multifamily residential loans sold or securitized with recourse	15,892		17,058		40,708		69,974
Total	$	28,470	$	33,758	$	53,286	$	86,674

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Deposits (Tables)

12 Months Ended

Dec. 31, 2019

DEPOSIT ACCOUNTS

Summary of deposit account balances

The following table presents the composition of the Company’s deposits as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Deposits:
Noninterest-bearing demand	$	11,080,036	$	11,377,009
Interest-bearing checking	5,200,755		4,584,447
Money market	8,711,964		8,262,677
Savings	2,117,196		2,146,429
Time deposits:
Less than $100,000	1,993,950		1,957,121
$100,000 or greater	8,220,358		7,111,945
Total deposits	$	37,324,259	$	35,439,628

Schedule of maturities of time deposits

The following table presents the scheduled maturities of time deposits for the five years succeeding December 31, 2019 and thereafter:

($ in thousands)	Amount
2020	$	9,653,276
2021	428,971
2022	59,324
2023	36,633
2024	7,024
Thereafter	29,080
Total	$	10,214,308

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Accumulated Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Before - Tax
Other comprehensive income (loss)	$ 61,909	$ (18,015)	$ 9,084
Tax Effect
Other comprehensive income (loss)	(22,143)	3,631	1,543
Net-of- Tax
Net unrealized gains (losses) arising during the period	42,534	(12,598)	15,284
Net realized gains reclassified into net income	(2,768)	(1,786)	(4,657)
Other comprehensive income (loss)	39,766	(14,384)	10,627
Available- for-Sale Debt Investment Securities
Before - Tax
Net unrealized gains (losses) arising during the period	65,549	(9,748)	4,368
Net realized gains reclassified into net income	(3,930)	(2,535)	(8,037)
Other comprehensive income (loss)	61,619	(12,283)	(3,669)
Tax Effect
Net unrealized gains (losses) arising during the period	(19,379)	2,882	(1,837)
Net realized gains reclassified into net income	1,162	749	3,380
Other comprehensive income (loss)	(18,217)	3,631	1,543
Net-of- Tax
Net unrealized gains (losses) arising during the period	46,170	(6,866)	2,531
Net realized gains reclassified into net income	(2,768)	(1,786)	(4,657)
Other comprehensive income (loss)	43,402	(8,652)	(2,126)
Foreign Currency Translation Adjustments
Before - Tax
Net unrealized gains (losses) arising during the period	290	(5,732)	12,753
Other comprehensive income (loss)	290	(5,732)	12,753
Tax Effect
Net unrealized gains (losses) arising during the period	(3,926)	0	0
Other comprehensive income (loss)	(3,926)	0	0
Net-of- Tax
Net unrealized gains (losses) arising during the period	(3,636)	(5,732)	12,753
Net realized gains reclassified into net income	0	0	0
Other comprehensive income (loss)	$ (3,636)	$ (5,732)	$ 12,753

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Income Taxes

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

Impact of Tax Cuts and Jobs Act of 2017

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was enacted, resulting in significant changes to the Internal Revenue Code. U.S. GAAP requires companies to recognize the effect of tax law changes on deferred tax assets and liabilities and other recognized assets in the period of enactment. In December 2017, the U.S. Securities and Exchange Commission (“SEC”) staff issued Staff Accounting Bulletin No.118 (“SAB 118”). SAB 118 allows the recording of a provisional estimate to reflect the income tax impact of the U.S. tax legislation and provides a measurement period up to one year from the enactment date. During the year ended December 31, 2017, the Company recorded $41.7 million in income tax expense related to the impact of the Tax Act, of which this amount was primarily related to the remeasurements of certain deferred tax assets and liabilities of $33.1 million, as well as the remeasurements of tax credits and other tax benefits related to qualified affordable housing partnerships of $7.9 million. During the year ended December 31, 2018, management finalized its assessment of the initial impact of the Tax Act, which resulted in an increase in income tax expense of $985 thousand ensuing from the remeasurement of deferred tax assets and liabilities. The overall impact of the Tax Act was a one-time increase in income tax expense of $42.7 million.

Impact of Investment in DC Solar Tax Credit Funds

Investors in DC Solar funds, including the Company, received tax credits for making renewable energy investments. The Company’s investments in the DC Solar tax credit funds qualified for federal energy tax credit under Section 48 of the Internal Revenue Code of 1986, as amended. The Company also received a “should” level legal opinion from an external law firm supporting the legal structure of the investments for tax credit purposes. Between 2014 and 2018, the Company had invested in four DC Solar energy tax credit funds and claimed tax credits of approximately $53.9 million, partially reduced by a deferred tax liability of $5.7 million related to the 50% tax basis reduction, for a net impact of $48.2 million to the Consolidated Financial Statements.

ASC 740-10-25-6 states in part, that an entity shall initially recognize the financial statement effects of a tax position when it is more-likely-than-not, based on the technical merits, that the position will be sustained upon examination. The term “more-likely-than-not” means a likelihood of more than 50 percent; the terms “examined” and “upon examination” include resolution of the related appeals or litigation processes, if any. The level of evidence that is necessary and appropriate to support the technical merits of a tax position is subject to judgment and depends on available information as of the balance sheet date. A subsequent measurement of a tax position is based on management’s best judgment given the facts, circumstances and information available at the latest quarterly reporting date. A change in judgment that results in a subsequent derecognition or change in measurement of a tax position is recognized as a discrete item in the period in which the change occurs.

In February 2019, an affidavit from a FBI special agent stated that DC Solar was operating a fraudulent “Ponzi-like scheme” and that the majority of the mobile solar generators sold to investors and managed by DC Solar, as well as the majority of the related lease revenues claimed to have been received by DC Solar might not have existed. The Company, in coordination with other fund investors, engaged an unaffiliated third-party inventory firm to investigate the actual number of mobile solar generators in existence. Based on the inventory report, none of the mobile service generators that had been purchased by the Company’s 2017 and 2018 tax credit funds were found. On the other hand, a vast majority of the mobile solar generators purchased by the Company’s 2014 and 2015 tax credit funds were found. Based on the inventory information, as well as management’s best judgments regarding the future settlement of the related tax positions with the Internal Revenue Service (“IRS”), the Company concluded that a portion of the previously claimed tax credits would be recaptured. During the year ended December 31, 2019, the Company reversed $33.6 million out of the $53.9 million previously claimed tax credits, and $3.5 million out of the $5.7 million deferred tax liability, resulting in $30.1 million of additional income tax expense.

The Company continues to conduct an ongoing investigation related to this matter. For further discussion related to the Company’s investment in DC Solar and the Company’s impairment evaluation and monitoring process in tax credit investments, refer to Note 8 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities and Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

The following table presents the components of income tax expense for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Current income tax expense (benefit):
Federal	$	107,393		$	63,035		$	120,968
State	86,578			64,917			72,837
Foreign	(2,485		)	3,513			1,815
Total current income tax expense	191,486			131,465			195,620
Deferred income tax (benefit) expense:
Federal	(8,801		)	(11,870		)	40,057
State	(16,390		)	(4,600		)	(6,201		)
Foreign	3,587			—			—
Total deferred income tax (benefit) expense	(21,604		)	(16,470		)	33,856
Income tax expense	$	169,882		$	114,995		$	229,476

The following table presents the reconciliation of the federal statutory rate to the Company’s effective tax rate for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
	2019		2018		2017
Statutory U.S. federal tax rate	21.0	%	21.0	%	35.0	%
U.S. state income taxes, net of U.S. federal income tax effect	7.1		5.8		5.9
The Tax Act	—		0.1		4.5
Tax credits and affordable housing, net of amortization	(10.4	)	(13.3	)	(15.1	)
Other, net	2.4		0.4		0.9
Effective tax rate	20.1	%	14.0	%	31.2	%

The 6.1% increase in effective tax rate to 20.1% in 2019, from 14.0% in 2018 was primarily due to the $30.1 million of income tax expense recorded to reverse certain previously claimed tax credits related to the Company’s investment in DC Solar, as well as $14.7 million decrease in tax credits recognized from investments in renewable energy and historic rehabilitation tax credit projects. The 2018 effective income tax rate reflected the reduction to the U.S. federal income tax rate from 35% to 21% resulting from the Tax Act.

The tax effects of temporary differences that give rise to a significant portion of deferred tax assets and liabilities as of December 31, 2019 and 2018 are presented below:

($ in thousands)	December 31,
	2019			2018
Deferred tax assets:
Allowance for loan losses	$	109,903		$	96,876
Investments in qualified affordable housing partnerships, tax credit and other investments, net	11,190			3,691
Deferred compensation	23,816			18,724
Interest income on nonaccrual loans	9,527			8,602
State taxes	5,848			4,506
Unrealized gains/losses on securities	324			20,233
Tax credit carryforwards	—			26,831
Premises and equipment	1,578			1,887
Deferred gain	—			4,476
Lease liability	35,948			2,604
Other	641			6,178
Total gross deferred tax assets	198,775			194,608
Valuation allowance	(21		)	(128		)
Total deferred tax assets, net of valuation allowance	$	198,754		$	194,480
Deferred tax liabilities:
Equipment lease financing	$	30,669		$	30,523
Investments in qualified affordable housing partnerships, tax credit and other investments, net	12,301			30,706
Core deposit intangibles	3,032			4,427
FHLB stock dividends	1,854			1,866
Mortgage servicing assets	1,839			2,390
Acquired debt	1,679			1,771
Prepaid expenses	1,100			1,207
Premises and equipment	1,890			1,078
Operating lease right-of-use assets	34,313			—
Other	3,590			2,872
Total gross deferred tax liabilities	$	92,267		$	76,840
Net deferred tax assets	$	106,487		$	117,640

The tax benefits of deductible temporary differences and tax carryforwards are recorded as an asset to the extent that management assesses the utilization of such temporary differences and carryforwards to be more-likely-than-not. A valuation allowance is used, as needed, to reduce the deferred tax assets to the amount that is more-likely-than-not to be realized. Evidence the Company considers includes the Company’s ability to generate future taxable income, implement tax-planning strategies (as defined in ASC 740, Income Taxes), and utilize taxable income from prior carryback years (if such carryback is permitted under the applicable tax law), as well as future reversals of existing taxable temporary differences. The Company expects to have sufficient taxable income in future years to fully realize its deferred tax assets. The Company also performed an overall assessment by weighing all positive evidence against all negative evidence and concluded that it is more-likely-than-not that all of the benefits of the deferred tax assets will be realized, with the exception of the deferred tax assets related to certain state net operating losses (“NOL”) carryforwards. For states other than California, Georgia, Massachusetts and New York, because management believes that the state NOL carryforwards may not be fully utilized, a valuation allowance of $21 thousand and $128 thousand was recorded for such carryforwards as of December 31, 2019 and 2018, respectively. As of December 31, 2019 and 2018, the Company recorded net deferred tax assets of $106.5 million and $117.6 million, respectively, in Other assets on the Consolidated Balance Sheet.

In 2018, the Company early adopted ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits companies to reclassify the stranded tax effects resulting from the Tax Act from AOCI to retained earnings on a retrospective basis. The adoption of the guidance resulted in a cumulative-effect adjustment as of January 1, 2018 that increased retained earnings by $6.7 million and reduced AOCI by the same amount. For additional information refer to Note 19 — Accumulated Other Comprehensive Income (Loss).

The following table presents a reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Beginning balance	$	4,378		$	10,419		$	10,419
Additions for tax positions related to prior years	30,103			—			—
Deductions for tax positions related to prior years	(34,481		)	(3,969		)	—
Settlements with taxing authorities	—			(2,072		)	—
Ending balance	$	—		$	4,378		$	10,419

The Company believes that adequate provisions have been made for all income tax uncertainties consistent with the standards of ASC 740-10. The Company recognizes interest and penalties, as applicable, related to the underpayment of income taxes as a component of Income tax expense on the Consolidated Statement of Income. The Company recorded a (reversal) charge of $(6.3) million, $(2.0) million and $450 thousand of interest and penalties for the years ended December 31, 2019, 2018 and 2017, respectively. Total accrued interest and penalties included in Accrued expenses and other liabilities on the Consolidated Balance Sheet was $6.3 million as of December 31, 2018. There was no liability for accrued interest and penalties as of December 31, 2019.

Beginning with its 2012 tax year, the Company has executed a Memorandum of Understanding (“MOU”) with the IRS to voluntarily participate in the IRS Compliance Assurance Process (“CAP”). Under the CAP, the IRS audits the tax position of the Company to identify and resolve any tax issues that may arise throughout the tax year. The objective of the CAP is to resolve issues in a timely and contemporaneous manner and eliminate the need for a lengthy post-filing examination. The Company has executed a MOU with the IRS for the 2019 tax year. For federal tax purposes, the IRS had completed the 2017 and earlier tax years’ corporate income tax return examination. The state of Oregon is also conducting an audit of the Company’s corporate income tax return for the 2017 tax year and the City of New York is auditing the Company’s corporate income tax return for the 2015 and 2016 tax years. In addition, the state of New York has initiated an audit of the Company’s 2016 to 2018 corporate income tax returns. The Company does not believe that the outcome of unresolved issues or claims in any tax jurisdiction is likely to be material to the Company’s financial position, cash flows or results of operations. The Company believes that adequate provisions have been recorded for all income tax uncertainties consistent with ASC 740, Income Taxes as of December 31, 2019.

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Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Contract with Customer, Asset, Gross, Noncurrent	$ 0				$ 0				$ 0	$ 0
Contract with Customer, Liability, Noncurrent	0				0				0	0
Revenue from contract with customer									55,316,000	52,961,000	$ 54,273,000
Other sources of noninterest income									154,061,000	157,948,000	203,475,000
Total noninterest income	$ 63,013,000	$ 51,474,000	$ 52,759,000	$ 42,131,000	$ 41,695,000	$ 46,502,000	$ 48,268,000	$ 74,444,000	209,377,000	210,909,000	257,748,000
Deposit service charges and related fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									34,940,000	35,223,000	36,049,000
Card income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									3,708,000	3,953,000	4,250,000
Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									16,668,000	13,785,000	13,974,000
Consumer and Business Banking
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									40,200,000	39,027,000	39,792,000
Other sources of noninterest income									17,720,000	46,580,000	14,659,000
Total noninterest income									57,920,000	85,607,000	54,451,000
Consumer and Business Banking | Deposit service charges and related fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									21,327,000	22,474,000	24,109,000
Consumer and Business Banking | Card income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									3,032,000	3,196,000	3,465,000
Consumer and Business Banking | Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									15,841,000	13,357,000	12,218,000
Commercial Banking
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									15,067,000	13,511,000	14,017,000
Other sources of noninterest income									119,555,000	96,776,000	96,072,000
Total noninterest income									134,622,000	110,287,000	110,089,000
Commercial Banking | Deposit service charges and related fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									13,564,000	12,326,000	11,476,000
Commercial Banking | Card income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									676,000	757,000	785,000
Commercial Banking | Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									827,000	428,000	1,756,000
Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									49,000	423,000	464,000
Other sources of noninterest income									16,786,000	14,592,000	92,744,000
Total noninterest income									16,835,000	15,015,000	93,208,000
Other | Deposit service charges and related fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									49,000	423,000	464,000
Other | Card income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									0	0	0
Other | Wealth management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer									$ 0	$ 0	$ 0

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Income Taxes (Reconciliation of Federal Statutory Rate) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Difference between the effective tax rate implicit in the consolidated financial statements and the statutory federal income tax rate
Statutory U.S. federal tax rate	21.00%	21.00%	35.00%
U.S. state income taxes, net of U.S. federal income tax effect	7.10%	5.80%	5.90%
The Tax Act	0.00%	0.10%	4.50%
Tax credits and affordable housing, net of amortization	(10.40%)	(13.30%)	(15.10%)
Other, net	2.40%	0.40%	0.90%
Effective tax rate	20.10%	14.00%	31.20%

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Stockholders’ Equity and Earnings Per Share

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Stockholders’ Equity and Earnings Per Share

Stockholders’ Equity and Earnings Per Share

The following table presents the basic and diluted EPS calculations for the years ended December 31, 2019, 2018 and 2017. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Earnings per Share to the Consolidated Financial Statements.

($ and shares in thousands, except per share data)	Year Ended December 31,
	2019		2018		2017
Basic:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Basic EPS	$	4.63	$	4.86	$	3.50
Diluted:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Diluted potential common shares (1)(2)	682		1,307		1,469
Diluted weighted-average number of shares outstanding (1)(2)	146,179		146,169		145,913
Diluted EPS	$	4.61	$	4.81	$	3.47

(1) Includes dilutive shares from RSUs for the year ended December 31, 2019, and from RSUs and warrants for the years ended December 31, 2018 and 2017.

(2) The Company acquired MetroCorp Bancshares, Inc. (“MetroCorp”) on January 17, 2014. Prior to the acquisition, MetroCorp had outstanding warrants to purchase 771,429 shares of its common stock. Upon the acquisition, the rights of the warrant holders were converted into the rights to acquire 230,282 shares of East West’s common stock until January 16, 2019. All warrants were exercised on January 7, 2019.

For the years ended December 31, 2019, 2018 and 2017, 15 thousand, 10 thousand and 14 thousand weighted-average shares of anti-dilutive RSUs, respectively, were excluded from the diluted EPS computation.

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Goodwill and Other Intangible Assets (Goodwill Reporting Unit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning	$ 465,547	$ 469,433
Goodwill, end	465,697	465,547
Enstream Capital Markets, LLC
Goodwill [Roll Forward]
Acquisition of Enstream Capital Markets, LLC	150
Desert Community Bank
Goodwill [Roll Forward]
Disposition of the DCB branches		(3,886)
Consumer and Business Banking
Goodwill [Roll Forward]
Goodwill, beginning	353,321	357,207
Goodwill, end	353,321	353,321
Consumer and Business Banking | Enstream Capital Markets, LLC
Goodwill [Roll Forward]
Acquisition of Enstream Capital Markets, LLC	0
Consumer and Business Banking | Desert Community Bank
Goodwill [Roll Forward]
Disposition of the DCB branches		(3,886)
Commercial Banking
Goodwill [Roll Forward]
Goodwill, beginning	112,226	112,226
Goodwill, end	112,376	112,226
Commercial Banking | Enstream Capital Markets, LLC
Goodwill [Roll Forward]
Acquisition of Enstream Capital Markets, LLC	$ 150
Commercial Banking | Desert Community Bank
Goodwill [Roll Forward]
Disposition of the DCB branches		$ 0

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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Investments in Qualified Affordable Housing Partnerships, Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments in Qualified Affordable Housing Partnerships, Net [Abstract]
Minimum compliance period to fully utilize tax credits	15 years
Investments in qualified affordable housing partnerships, net	$ 207,037	$ 184,873
Accrued expenses and other liabilities — Unfunded commitments	80,294	80,764
Tax credits and other tax benefits recognized	46,034	39,262	$ 46,698
Amortization expense included in income tax expense	$ 36,561	$ 28,046	$ 38,464

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Loans Receivable and Allowance for Credit Losses (Allowance for Loan Losses and Recorded Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for loan losses
Allowance for loan losses	$ 358,287	$ 311,322	$ 287,128
Recorded investment in loans
Loans held-for-investment	34,778,539	32,385,189
Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	5,593	4,032
Allowance for loan losses
Collectively evaluated for impairment	352,694	307,268
Allowance for loan losses	358,287	311,300	287,070	$ 260,402
Recorded investment in loans
Individually evaluated for impairment	198,117	118,918
Collectively evaluated for impairment	34,357,551	31,958,248
Loans held-for-investment	34,555,668	32,077,166
Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	22	$ 58	$ 118
Recorded investment in loans
Loans held-for-investment	222,871	308,023
Commercial Lending
Recorded investment in loans
Loans held-for-investment	25,914,252	24,326,631
Commercial Lending | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	3,033	1,502
Recorded investment in loans
Loans held-for-investment	25,777,039	24,124,659
Commercial Lending | Acquired with deteriorated credit quality
Recorded investment in loans
Loans held-for-investment	137,213	201,972
Commercial Lending | C&I
Allowance for loan losses
Allowance for loan losses	238,376	189,117
Recorded investment in loans
Loans held-for-investment	12,150,931	12,056,970
Commercial Lending | C&I | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	2,881	1,219
Allowance for loan losses
Collectively evaluated for impairment	235,495	187,898
Recorded investment in loans
Individually evaluated for impairment	114,042	57,088
Collectively evaluated for impairment	12,035,079	11,997,730
Loans held-for-investment	12,149,121	12,054,818
Commercial Lending | C&I | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	1,810	2,152
Commercial Lending | CRE
Allowance for loan losses
Allowance for loan losses	40,509	40,666
Recorded investment in loans
Loans held-for-investment	10,278,448	9,260,199
Commercial Lending | CRE | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	97	208
Allowance for loan losses
Collectively evaluated for impairment	40,412	40,436
Recorded investment in loans
Individually evaluated for impairment	21,618	30,352
Collectively evaluated for impairment	10,143,629	9,066,813
Loans held-for-investment	10,165,247	9,097,165
Commercial Lending | CRE | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	22
Recorded investment in loans
Loans held-for-investment	113,201	163,034
Commercial Lending | Residential loan | Multifamily
Allowance for loan losses
Allowance for loan losses	22,826	19,885
Recorded investment in loans
Loans held-for-investment	2,856,374	2,470,668
Commercial Lending | Residential loan | Multifamily | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	55	75
Allowance for loan losses
Collectively evaluated for impairment	22,771	19,810
Recorded investment in loans
Individually evaluated for impairment	4,464	5,560
Collectively evaluated for impairment	2,829,748	2,428,364
Loans held-for-investment	2,834,212	2,433,924
Commercial Lending | Residential loan | Multifamily | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	22,162	36,744
Commercial Lending | Construction and land
Allowance for loan losses
Allowance for loan losses	19,404	20,290
Recorded investment in loans
Loans held-for-investment	628,499	538,794
Commercial Lending | Construction and land | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	0	0
Allowance for loan losses
Collectively evaluated for impairment	19,404	20,290
Recorded investment in loans
Individually evaluated for impairment	19,691	0
Collectively evaluated for impairment	608,768	538,752
Loans held-for-investment	628,459	538,752
Commercial Lending | Construction and land | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	40	42
Consumer Lending
Recorded investment in loans
Loans held-for-investment	8,864,287	8,058,558
Consumer Lending | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	2,560	2,530
Recorded investment in loans
Loans held-for-investment	8,778,629	7,952,507
Consumer Lending | Acquired with deteriorated credit quality
Recorded investment in loans
Loans held-for-investment	85,658	106,051
Consumer Lending | Residential loan | Single-family
Allowance for loan losses
Allowance for loan losses	28,527	31,340
Recorded investment in loans
Loans held-for-investment	7,108,590	6,036,454
Consumer Lending | Residential loan | Single-family | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	35	34
Allowance for loan losses
Collectively evaluated for impairment	28,492	31,306
Recorded investment in loans
Individually evaluated for impairment	22,211	13,460
Collectively evaluated for impairment	7,006,768	5,925,798
Loans held-for-investment	7,028,979	5,939,258
Consumer Lending | Residential loan | Single-family | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	79,611	97,196
Consumer Lending | HELOCs
Allowance for loan losses
Allowance for loan losses	5,265	5,774
Recorded investment in loans
Loans held-for-investment	1,472,783	1,690,834
Consumer Lending | HELOCs | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	8	5
Allowance for loan losses
Collectively evaluated for impairment	5,257	5,769
Recorded investment in loans
Individually evaluated for impairment	13,574	9,956
Collectively evaluated for impairment	1,453,162	1,672,023
Loans held-for-investment	1,466,736	1,681,979
Consumer Lending | HELOCs | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	6,047	8,855
Consumer Lending | Other consumer
Allowance for loan losses
Allowance for loan losses	3,380	4,250
Recorded investment in loans
Loans held-for-investment	282,914	331,270
Consumer Lending | Other consumer | Non-PCI loans
Financing Receivable, Allowance for Credit Losses
Related Allowance	2,517	2,491
Allowance for loan losses
Collectively evaluated for impairment	863	1,759
Recorded investment in loans
Individually evaluated for impairment	2,517	2,502
Collectively evaluated for impairment	280,397	328,768
Loans held-for-investment	282,914	331,270
Consumer Lending | Other consumer | Acquired with deteriorated credit quality
Allowance for loan losses
Allowance for loan losses	0	0
Recorded investment in loans
Loans held-for-investment	$ 0	$ 0

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Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of amortized cost, gross unrealized gains, gross unrealized losses and fair value by major categories of available-for-sale investment securities

The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS investment securities as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	177,215	$	—	$	(793	)	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	584,275		1,377		(4,407		)	581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	599,814		8,551		(4,894		)	603,471
Residential mortgage-backed securities	998,447		6,927		(1,477		)	1,003,897
Municipal securities	101,621		790		(109		)	102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	86,609		1,947		(6		)	88,550
Residential mortgage-backed securities	46,830		3		(285		)	46,548
Corporate debt securities	11,250		12		(113		)	11,149
Foreign bonds	354,481		198		(507		)	354,172
Asset-backed securities	66,106		—		(1,354		)	64,752
CLOs	294,000		—		(9,294		)	284,706
Total AFS investment securities	$	3,320,648	$	19,805	$	(23,239	)	$	3,317,214

($ in thousands)	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	577,561	$	153	$	(12,899	)	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	219,485		382		(2,694		)	217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	420,486		811		(12,694		)	408,603
Residential mortgage-backed securities	957,219		4,026		(14,552		)	946,693
Municipal securities	82,965		87		(1,032		)	82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	25,826		226		—			26,052
Residential mortgage-backed securities	10,109		7		(185		)	9,931
Corporate debt securities	11,250		—		(381		)	10,869
Foreign bonds	489,378		—		(26,330		)	463,048
Asset-backed securities	12,621		22		—			12,643
Total AFS investment securities	$	2,806,900	$	5,714	$	(70,767	)	$	2,741,847

Schedule of fair value and associated gross unrealized loss of available-for-sale investment securities

The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS investment securities, aggregated by investment category and the length of time that the securities have been in a continuous unrealized loss position, as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	176,422	$	(793	)	$	176,422	$	(793	)
U.S. government agency and U.S. government sponsored enterprise debt securities	310,349		(4,407		)	—		—			310,349		(4,407		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	204,675		(2,346		)	108,314		(2,548		)	312,989		(4,894		)
Residential mortgage-backed securities	325,354		(1,234		)	34,337		(243		)	359,691		(1,477		)
Municipal securities	31,130		(109		)	—		—			31,130		(109		)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	7,914		(6		)	—		—			7,914		(6		)
Residential mortgage-backed securities	42,894		(285		)	—		—			42,894		(285		)
Corporate debt securities	—		—			9,888		(113		)	9,888		(113		)
Foreign bonds	129,074		(407		)	9,900		(100		)	138,974		(507		)
Asset-backed securities	52,565		(902		)	12,187		(452		)	64,752		(1,354		)
CLOs	284,706		(9,294		)	—		—			284,706		(9,294		)
Total AFS investment securities	$	1,388,661	$	(18,990	)	$	351,048	$	(4,249	)	$	1,739,709	$	(23,239	)

($ in thousands)	December 31, 2018
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	516,520	$	(12,899	)	$	516,520	$	(12,899	)
U.S. government agency and U.S. government sponsored enterprise debt securities	22,755		(238		)	159,814		(2,456		)	182,569		(2,694		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	26,886		(245		)	274,666		(12,449		)	301,552		(12,694		)
Residential mortgage-backed securities	75,675		(491		)	653,660		(14,061		)	729,335		(14,552		)
Municipal securities	9,458		(104		)	30,295		(928		)	39,753		(1,032		)
Non-agency mortgage-backed securities:
Residential mortgage-backed securities	3,067		(19		)	3,949		(166		)	7,016		(185		)
Corporate debt securities	10,869		(381		)	—		—			10,869		(381		)
Foreign bonds	14,418		(40		)	448,630		(26,290		)	463,048		(26,330		)
Total AFS investment securities	$	163,128	$	(1,518	)	$	2,087,534	$	(69,249	)	$	2,250,662	$	(70,767	)

Schedule of the proceeds, gross realized gains and losses and tax expense related to the sales of available-for-sale investment securities

The following table presents the proceeds, gross realized gains and losses, and tax expense related to the sales of AFS investment securities for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Proceeds from sales	$	627,110	$	364,270	$	832,844
Gross realized gains	$	3,930	$	2,535	$	8,037
Related tax expense	$	1,162	$	749	$	3,380

Schedule of contractual maturities of available-for-sale investment securities

The following table presents the contractual maturities of AFS investment securities as of December 31, 2019:

($ in thousands)	Amortized Cost		Fair Value
Due within one year	$	721,607	$	719,179
Due after one year through five years	395,468		392,891
Due after five years through ten years	143,029		145,901
Due after ten years	2,060,544		2,059,243
Total AFS investment securities	$	3,320,648	$	3,317,214

Schedule of restricted equity securities

The following table presents the restricted equity securities included in Other Assets on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
FRB stock	$	58,330	$	56,819
FHLB stock	20,250		17,250
Total restricted equity securities	$	78,580	$	74,069

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Stock Compensation Plans (Stock Purchase Plan) (Details) - Stock Purchase Plan - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Stock purchase plan
Purchase price of shares in terms compared to market price per share (as a percent)	90.00%
Annual purchase limitation per employee	$ 22,500
Compensation expense	$ 0
Common stock, shares authorized (in shares)	2,000,000
Shares sold to employees (in shares)	81,221	51,541
Value of shares sold to employees under purchase plan	$ 3,400,000	$ 2,800,000
Shares available (in shares)	393,925

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Commitments, Contingencies and Related Party Transactions (Guarantees Outstanding) (Details) - Loans sold or securitized with recourse - Loans Sold or Securitized with Recourse - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Single Family Residential and Multi-Family Residential with recourse
Guarantees
Maximum potential future payments	$ 28,470	$ 33,758
Carrying value	53,286	86,674
Single Family Residential with recourse
Guarantees
Maximum potential future payments	12,578	16,700
Carrying value	12,578	16,700
Multifamily Residential with recourse
Guarantees
Maximum potential future payments	15,892	17,058
Carrying value	$ 40,708	$ 69,974

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation — The accounting and reporting policies of the Company conform with the U.S. Generally Accepted Accounting Principles (“GAAP”), applicable guidelines prescribed by regulatory authorities and general practices in the banking industry. The preparation of the Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the Consolidated Financial Statements, income and expenses during the reporting period, and the related disclosures. Actual results could differ materially from those estimates. Certain items on the Consolidated Financial Statements and notes for the prior years have been reclassified to conform to the 2019 presentation.

Principles of Consolidation

Principles of Consolidation — The Consolidated Financial Statements in this Form 10-K include the accounts of East West and its subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. East West also has six wholly-owned subsidiaries that are statutory business trusts (the “Trusts”). In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Trusts are not included on the Consolidated Financial Statements.

Cash and Cash Equivalents

Cash and Cash Equivalents — Cash and cash equivalents include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRB”) and other financial institutions, and federal funds sold with original maturities up to three months.

Interest-bearing Deposits with Banks

Interest-bearing Deposits with Banks — Interest-bearing deposits with banks include cash placed with other banks with original maturities greater than three months and less than one year.

Resale Agreements and Repurchase Agreements

Resale Agreements and Repurchase Agreements — Resale agreements are recorded as receivables based on the values at which the securities are acquired. The market values of the underlying securities collateralizing the resale agreements, including accrued interest, are monitored. Additional collateral may be requested from the counterparties or excess collateral may be returned to the counterparties by the Company under the contractual terms of the arrangements, when deemed appropriate. Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. The Company may have to provide additional collateral to the counterparties, or the counterparties may return excess collateral to the Company, for the repurchase agreements when deemed appropriate. The Company has elected to offset resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and when the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements.

Securities

Securities — The Company’s securities include various debt securities, marketable equity securities and restricted equity securities. Debt securities are recorded on the Consolidated Balance Sheet as of their trade dates. The Company classifies its debt securities as trading securities, AFS or held-to-maturity investment securities based on management’s intention on the date of the purchase.

Debt securities are purchased for liquidity and investment purpose, as part of asset-liability management and other strategic activities. Debt securities for which the Company does not have the positive intention and ability to hold to maturity are classified as AFS and reported at fair value with unrealized gains and losses net of applicable income taxes, included in AOCI. We recognize realized gains and losses on the sale of AFS debt securities using the specific identification method. For each reporting period, debt securities classified as either AFS or held-to-maturity investment securities that are in an unrealized loss position are analyzed as part of the Company’s ongoing other-than-temporary impairment (“OTTI”) assessment. The initial indicator of OTTI is a decline in fair value below the amortized cost of the debt security. In determining whether OTTI has occurred, the Company considers the severity and duration of the decline in fair value, the length of time expected for recovery, the financial condition of the issuer, changes in the debt securities’ ratings and other qualitative factors, as well as whether the Company either plans to sell the debt security or it is more-likely-than-not that it will be required to sell the debt security before recovery of the amortized cost. When the Company does not intend to sell the impaired debt security and it is more-likely-than-not that the Company will not be required to sell the impaired debt security prior to recovery of its amortized cost basis, the credit component of an OTTI of the impaired debt security is recognized as OTTI loss on the Consolidated Statement of Income and the non-credit component is recognized in other comprehensive income. This applies for both AFS and held-to-maturity investment securities. If the Company intends to sell the impaired debt security or it is more-likely-than-not that the Company will be required to sell the impaired debt security prior to recovery of its amortized cost basis, the full amount of the impairment loss (equal to the difference between the debt security’s amortized cost basis and its fair value at the balance sheet date) is recognized as OTTI loss on the Consolidated Statement of Income. Following the recognition of OTTI, the debt security’s new amortized cost basis is the previous basis minus the OTTI amount recognized in earnings.

Marketable equity securities that have readily determinable fair values are recorded at fair value with unrealized gains and losses, due to changes in fair value, reflected in earnings. Marketable equity securities include mutual fund investments are included in Investments in tax credit and other investments, net on the Consolidated Balance Sheet. Nonmarketable equity securities that do not have readily determinable fair values, exclude investments for which we hold a controlling interest in the investee. Nonmarketable equity securities include tax credit investments that are included in Investments in tax credit and other investments, net, and Other assets on the Consolidated Balance Sheet. These securities are accounted for under one of the following accounting methods:

• Equity Method — When we have the ability to exert significant influence over the investee.

• Cost Method — The cost method is applied to investments such as FRB and FHLB stock. These investments are held at their cost minus impairment. If impaired, the carrying value is written down to the fair value of the security.

• Measurement Alternative — This method is applied to all remaining nonmarketable equity securities. These securities are carried at cost less impairment, and adjusted for changes in fair value upon the occurrence of orderly observable transactions of the same or similar security of the same issuer.

Our review for impairment for equity method, cost method and measurement alternative securities typically includes an analysis of the facts and circumstances of each security, the intent or requirement to sell the security, the expectations of cash flows, capital needs and the viability of its business model. For equity method and cost method investments, we reduce the asset’s carrying value when we consider declines in value to be OTTI. For securities accounted for under the measurement alternative, we reduce the asset value when the fair value is less than the carrying value, without the consideration of recovery. For additional information on the Company’s OTTI evaluation, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements.

Restricted Equity Securities

Restricted equity securities include FRB and FHLB stock. The FRB stock is required by law to be held as a condition of membership in the Federal Reserve System. The FHLB stock is required to obtain advances from the FHLB. They are carried at cost as they do not have a readily determinable fair value.

Loans Held-for-Sale

Loans Held-for-Sale — Loans are initially classified as loans held-for-sale when they are individually identified as being available for immediate sale and management has committed to a formal plan to sell them. Loans held-for-sale are carried at lower of cost or fair value. Subject to periodic review under the Company’s evaluation process, including asset/liability and credit risk management, the Company may transfer certain loans from held-for-investment to held-for-sale measured at lower of cost or fair value. Any write-downs in the carrying amount of the loan at the date of transfer is recorded as a charge-off to allowance for loan losses. Loan origination fees on loans held-for-sale, net of certain costs in processing and closing the loans, are deferred until the time of sale and are included in the periodic determination of the lower of cost or fair value adjustments and/or the gain or loss recognized at the time of sale. A valuation allowance is established if the fair value of such loans is lower than their cost, with a corresponding charge to noninterest income. If the loan or a portion of the loan cannot be sold, it is subsequently transferred back to the loans held-for-investment portfolio from the loans held-for-sale portfolio at the lower of cost or fair value on the transfer date.

The Company purchases and sells loans in the secondary market in the ordinary course of business. From time to time, purchased loans may be transferred from held-for-investment to held-for-sale, and write-downs to allowance for loan losses are recorded, when appropriate.

Loans Held-for-Investment

Loans Held-for-Investment — At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future”. Loans held-for-investment are stated at their outstanding principal, reduced by an allowance for loan losses and net of deferred loan fees or costs, or unearned fees on originated loans, net of unamortized premiums or unaccreted discounts on purchased loans. Nonrefundable fees and direct costs associated with the origination or purchase of loans are deferred and netted against outstanding loan balances. The deferred net loan fees and costs are recognized in interest income as an adjustment to yield over the loan term using the effective interest method or straight-line method. Discounts/premiums on purchased loans are accreted/amortized to interest income using the effective interest method or straight-line method over the remaining period to contractual maturity. Interest on loans is calculated using the simple-interest method on daily balances of the principal amounts outstanding. Generally, loans are placed on nonaccrual status when they become 90 days past due or more. Loans are considered past due when contractually required principal or interest payments have not been made on the due dates. Loans are also placed on nonaccrual status when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that full collection of principal or interest becomes uncertain, regardless of the length of past due status. Once a loan is placed on nonaccrual status, interest accrual is discontinued and all unpaid accrued interest is reversed against interest income. Interest payments received on nonaccrual loans are reflected as a reduction of principal and not as interest income. A loan is returned to accrual status when the borrower has demonstrated a satisfactory payment trend subject to management’s assessment of the borrower’s ability to repay the loan.

Troubled Debt Restructurings

Troubled Debt Restructurings — A loan is classified as a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. The concessions may be granted in various forms, including a below-market change in the stated interest rate, a reduction in the loan balance or accrued interest, an extension of the maturity date with a stated interest rate lower than the current market rate or note splits referred to as A/B note restructurings. Loans with contractual terms that have been modified as a TDR and are current at the time of restructuring may remain on accrual status if there is demonstrated performance prior to the restructuring and payment in full under the restructured terms is expected. Otherwise, these loans are placed on nonaccrual status and are reported as nonperforming, until the borrower demonstrates a sustained period of performance, generally six months, and the ability to repay the loan according to the contractual terms. If accruing TDRs cease to perform in accordance with their modified contractual terms, they are placed on nonaccrual status and reported as nonperforming TDRs. TDRs are included in the impaired loan quarterly valuation allowance process. Refer to Impaired Loans below for a complete discussion.

Impaired Loans

Impaired Loans — Impaired loans are identified and evaluated for impairment on an individual basis. The Company’s impaired loans include predominantly loans held-for-investment on nonaccrual status or modified as a TDR designated either as performing or nonperforming, excluding purchased credit-impaired (“PCI”) loans. A loan is considered impaired when, based on current information and events, it is probable that the Company will not be able to collect all scheduled payments of principal or interest due in accordance with the original contractual terms of the loan agreement. Factors considered by management in determining and measuring loan impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of and the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed.

Impaired loans are measured based on the present value of expected future cash flows discounted at a designated discount rate or, as appropriate, at the loan’s observable market price or the fair value of the collateral, if the loan is collateral dependent, less cost to sell. When the value of an impaired loan is less than the recorded investment and the loan is classified as nonperforming and uncollectible, the deficiency is charged off against the allowance for loan losses. If the loan is a performing TDR, the deficiency is included in the specific reserves of the allowance for loan losses, as appropriate. Payments received on impaired loans classified as nonperforming are not recognized in interest income, but are applied as a reduction to the principal outstanding.

Allowance for Credit Losses

Allowance for Credit Losses — The allowance for credit losses (“ACL”) consists of the allowance for loan losses and unfunded credit commitments. The allowance for unfunded credit commitments include reserves provided for unfunded lending commitments, standby letters of credit (“SBLCs”) and recourse obligations for loans sold. The allowance for loan losses is established as management’s estimate of probable losses inherent in the Company’s lending activities. The allowance for loan losses is increased by the provision for loan losses and decreased by net charge-offs when management believes that the uncollectability of a loan is probable. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated quarterly by management based on periodic review of the collectability of the loans.

The allowance for loan losses on non-PCI loans consists of specific and general reserves. The Company’s non-PCI loans fall into heterogeneous and homogeneous categories. Impaired loans are subject to specific reserves. Non-impaired loans are evaluated as part of the general reserve. General reserves are calculated by utilizing both quantitative and qualitative factors. There are different qualitative risks for the loans in each portfolio segment. Predominant risk characteristics of the commercial real estate (“CRE”), multifamily, single-family residential loans and home equity lines of credit (“HELOC”) loans consider the collateral and geographic locations of the properties collateralizing the loans. Predominant risk characteristics of the commercial and industrial (“C&I”) loans include cash flows, debt service and collateral of the borrowers and guarantors, as well as the economic and market conditions.

The Company also maintains an allowance for loan losses on PCI loans when there is deterioration in credit quality subsequent to acquisition. Based on the Company’s estimates of cash flows expected to be collected, the Company establishes an allowance for the PCI loans, with a charge to Provision for credit losses on the Consolidated Statement of Income.

When a loan is determined uncollectible, it is the Company’s policy to promptly charge off the difference between the recorded investment balance of the loan and either the fair value of the collateral or the discounted value of expected cash flows. Recoveries are recorded when payment is received on loans that were previously charged off through the allowance for loan losses. Allocation of a portion of the allowance to one segment of the loan portfolio does not preclude its availability to absorb losses in other segments.

The allowance for unfunded credit commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities, including an assessment of the probability of commitment usage, credit risk factors for loans outstanding, and the terms and expiration dates of the unfunded credit facilities.

The allowance for loan losses is reported separately on the Consolidated Balance Sheet, whereas the allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Provision for credit losses is reported on the Consolidated Statement of Income.

Purchased Credit-Impaired Loans

Purchased Credit-Impaired Loans — Acquired loans are recorded at fair value as of acquisition date in accordance with ASC 805, Business Combinations. A purchased loan is deemed to be credit impaired when there is evidence of credit deterioration since its origination and it is probable at the acquisition date that the Company would be unable to collect all contractually required payments and is accounted for under ASC 310-30, Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality. Under ASC 310-30, loans are recorded at fair value at acquisition date, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded as of the acquisition date.

The excess of cash flows expected to be collected over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. The excess of total contractual cash flows over the cash flows expected to be received at origination is deemed the “nonaccretable difference.” In estimating the nonaccretable difference, the Company (a) calculates the contractual amount and timing of undiscounted principal and interest payments (the “undiscounted contractual cash flows”) and (b) estimates the amount and timing of undiscounted expected principal and interest payments (the “undiscounted expected cash flows”). The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions such as cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. Subsequent to the acquisition date, based on the quarterly evaluations of remaining cash flows from principal and interest payments expected to be collected, any increases in expected cash flows over the expected cash flows at purchase date in excess of fair value that are significant and probable are adjusted through the accretable yield on a prospective basis. Any subsequent decreases in expected cash flows over the expected cash flows at purchase date that are probable are recognized by a charge to the provision for loan losses. Any disposals of loans, including sales of loans, payments in full or foreclosures, result in the removal of the loan from the ASC 310-30 portfolio at the carrying amount.

At the date of acquisition, PCI loans are pooled and accounted for at fair value, which represents the discounted value of the expected cash flows of the loan portfolio. A pool is accounted for as a single asset with a single interest rate, cumulative loss rate and cash flows expectation. The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions as to cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. The amount of expected cash flows over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. Projected loss rates and prepayment speeds affect the estimated life of PCI loans, which may change the amount of interest income, and possibly principal, expected to be collected. The excess of total contractual cash flows over the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the “nonaccretable difference.”

Variable Interest and Voting Interest Entities

Variable Interest and Voting Interest Entities — The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity (“VIE”). We first determine whether or not we have variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that we do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. A VIE is an entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. The Company consolidates a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For entities that do not meet the definition of a VIE, the entity is considered a voting interest entity. We consolidate these entities if we can exert control over the financial and operating policies of an investee, which can occur if we have a 50% or more voting interest in the entity.

Investments in Qualified Affordable Housing Partnerships, Net, Tax Credit and Other Investments, Net

Investments in Qualified Affordable Housing Partnerships, Net, Tax Credit and Other Investments, Net — The Company records the investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

The Company records investments in tax credit and other investments, net, using either the equity method or cost method of accounting. The tax credits are recognized on the Consolidated Financial Statements to the extent they are utilized on the Company’s income tax returns in the year the credit arises under the flow-through method of accounting. The investments are reviewed for impairment on an annual basis or on an interim basis, if an event occurs that would trigger potential impairment.

Depending on the ownership percentage and the influence the Company has on the investments in tax credit and other investments, net, the Company applies the equity or cost method of accounting, or the measurement alternative as elected under ASU 2016-01 for equity investments without readily determinable fair value.

The Company records its investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

Premises and Equipment, Net

Premises and Equipment, Net — The Company’s premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed based on the straight-line method over the estimated useful lives of the various classes of assets. The ranges of estimated useful lives for the principal classes of assets are as follows:

Premises and Equipment	Useful Lives
Buildings	25 years
Furniture, fixtures and equipment, building improvements	3 to 7 years
Leasehold improvements	Term of lease or useful life, whichever is shorter

The Company reviews its long-lived assets for impairment annually, or when events or changes in circumstances indicate that the carrying amounts of these assets may not be recoverable. An asset is considered impaired when the fair value, which is the expected undiscounted cash flows over the remaining useful life, is less than the net book value. The excess of the net book value over its fair value is charged as impairment loss to noninterest expense.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets — Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. Goodwill is not amortized, but is tested for impairment on an annual basis or more frequently as events occur or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value. Other intangible assets are primarily comprised of core deposit intangibles. Core deposit intangibles, which represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions, are amortized over the projected useful lives of the deposits, which is typically 8 to 15 years. Core deposit intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant. Impairment on goodwill and core deposit intangibles is recognized by writing down the asset as a charge to noninterest expense to the extent that the carrying value exceeds the estimated fair value.

The Company conducts a two-step goodwill impairment test at the reporting unit level on an annual basis, or more frequently as events occur or circumstances that change the economic or business environment that may reduce the fair value of a reporting unit below carrying amount. For the two-step goodwill impairment test, the first step is to identify potential impairment by determining the fair value of each reporting unit and comparing such fair value to its corresponding carrying amount. If the fair value of a reporting unit is less than its carrying amount, the second step is performed to measure the amount of impairment loss, if any, by comparing the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss shall be recognized in an amount equal to that excess. The loss recognized cannot exceed the carrying amount of goodwill.

The Company completed the quantitative step one analysis of goodwill impairment test as of December 31, 2019 using a combined income and market approach to determine the fair value of the reporting units. Under the income approach, the Company projected future cash flows based on appropriate growth expectation and used appropriate discount rate assumption to calculate the discounted cash flows and the present value of the reporting units. Under the market approach, the fair value was calculated using price multiples of relevant peer banks with a control premium adjustment, which represents the cost savings that a purchaser of the reporting units could be achieved by eliminating duplicative costs. Under the combined income and market approach, the Company applied weighted average to determine the fair value of each reporting unit.Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. The Company assesses goodwill for impairment at the reporting unit level (at the same level as the Company’s business segments) on an annual basis as of December 31 each year, or more frequently if events or circumstances, such as adverse changes in the economic or business environment, indicate there may be impairment. The Company organizes its operation into three reporting segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other.Core deposit intangibles represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions and are included in Other assets on the Consolidated Balance Sheet. These intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant.

Derivatives

Derivatives — As part of its asset and liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate and foreign currency risks, and to assist customers with their risk management objectives.  Derivatives utilized by the Company include primarily swaps, forwards and option contracts.  Derivative instruments are included in Other assets or Accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. The related cash flows are recognized on the Cash flows from operating activities section on the Consolidated Statement of Cash Flows. The Company uses its accounting hedges based on the exposure being hedged as either fair value hedges or hedges of the net investments in certain foreign operations. For fair value hedges of interest rate risk, changes in fair value of derivatives are reported in Interest expense on the Consolidated Statement of Income. Changes in fair value of derivatives designated as hedges of the net investments in foreign operations are recorded as a component of AOCI.

All derivatives designated as fair value hedges and hedges of the net investments in certain foreign operations are linked to specific hedged items or to groups of specific assets and liabilities on the Consolidated Balance Sheet. To qualify as an accounting hedge under the hedge accounting rules (versus an economic hedge where hedge accounting is not sought), a derivative must be highly effective in offsetting the risk designated as being hedged. The Company formally documents its hedging relationships at inception, including the identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction at the time the derivative contract is executed. Subsequent to inception, on a quarterly basis, the Company assesses whether the derivatives used in hedging transactions are highly effective in offsetting changes in the fair value of the hedged items. Retrospective effectiveness is also assessed, as well as the continued expectation that the hedge will remain effective prospectively.

The Company discontinues hedge accounting prospectively when (i) a derivative is no longer highly effective in offsetting changes in fair value; (ii) a derivative expires, or is sold, terminated or exercised, or (iii) the Company determines that designation of a derivative as a hedge is no longer appropriate.  If a fair value hedge is discontinued, the derivative will continue to be recorded on the Consolidated Balance Sheet at fair value with changes in fair value recognized on the Consolidated Statement of Income. When the hedged net investment is either sold or substantially liquidated, changes in the fair value of the derivatives are reclassified out of AOCI into Foreign exchange income on the Consolidated Statement of Income.

The Company also offers various interest rate, foreign currency, and energy commodity derivative products to customers. These transactions are not linked to specific assets or liabilities on the Consolidated Balance Sheet or to forecasted transactions in a hedging relationship and, therefore, do not qualify for hedge accounting. These contracts are recorded at fair value with changes in fair value recorded on the Consolidated Statement of Income.

As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of public or private companies it provides loans to. These equity warrants are accounted for as derivatives and recorded at fair value included in Other assets on the Consolidated Balance Sheet with changes in fair value recorded on the Consolidated Statement of Income.

The Company is exposed to counterparty credit risk, which is the risk that counterparties to the derivative contracts do not perform as expected. Valuation of derivative assets and liabilities reflect the value of the instrument inclusive of the non-performance risk. The Company uses master netting arrangements to mitigate counterparty credit risk in derivative transactions. To the extent the derivatives are subject to master netting arrangements, the Company takes into account the impact of master netting arrangements that allow the Company to settle all derivative contracts executed with the same counterparty on a net basis, and to offset the net derivative position with the related cash collateral and securities. The Company elected to offset derivative transactions with the same counterparty on the Consolidated Balance Sheet when a derivative transaction has a legally enforceable master netting arrangement and when it is eligible for netting under ASC 210-20-45-1, Balance Sheet Offsetting: Netting Derivative Positions on Balance Sheet. Derivative balances and related cash collateral are presented net on the Consolidated Balance Sheet. In addition, the Company applied the Settlement to Market treatment for the cash collateralizing our interest rate and commodity contracts with certain centrally cleared counterparties. As a result, derivative balances with these counterparties are considered settled by the collateral.

Fair Value

Fair Value — Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date and, in many cases, requires management to make a number of significant judgments. Fair value measurements are based on the exit price notion and are determined by maximizing the use of observable inputs. However, for certain instruments, we must utilize unobservable inputs in determining fair value due to the lack of observable inputs in the market, which requires greater judgment in the measurement of fair value. Based on the inputs used in the valuation techniques, the Company classifies its assets and liabilities measured and disclosed at fair value in accordance with a three-level hierarchy (i.e., Level 1, Level 2 and Level 3) established under ASC 820, Fair Value Measurements. The Company records certain financial instruments, such as AFS investment securities, and derivative assets and liabilities, at fair value on a recurring basis. Certain financial instruments, such as impaired loans and loans held-for-sale, are not carried at fair value each period but may require nonrecurring fair value adjustments due to lower-of-cost-or-market accounting or write-downs of individual assets. For additional information on fair value, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

Stock-Based Compensation

Stock-Based Compensation — The Company issues stock-based awards to eligible employees, officers and directors, and accounts for the related costs in accordance with the provisions of ASC 505, Equity and ASC 718, Compensation — Stock Compensation. Stock-based compensation cost is measured at the grant date based on the fair value of the awards and expensed over the employee’s requisite service period.

The Company grants restricted stock units (“RSUs”), which include service conditions for vesting. Additionally, some of the Company’s RSUs contain performance goals and market conditions that are required to be met in order for the awards to vest. RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. RSUs are authorized to settle predominantly in shares of the Company’s common stock. Compensation cost for those awards is based on quoted market price of the Company’s common stock at the grant date. Certain RSUs will be settled in cash, which subjects these RSUs to variable accounting whereby the compensation cost is adjusted to fair value based on changes in the Company’s stock price up to the settlement date. Compensation cost is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award. Effective January 1, 2017, the Company prospectively adopted ASU 2016-09, Compensation — Stock Compensation (Topic 718): Improvement to Employee Share-Based Payment Accounting. As a result of its adoption, all excess tax benefits and deficiencies on share-based payment awards are recognized within Income tax expense on the Consolidated Statement of Income. Before 2017, the tax benefits were recorded as increases to Additional paid-in capital on the Consolidated Balance Sheet.

For time-based RSUs, the grant-date fair value is measured at the fair value of the Company’s common stock as if the RSUs are vested and issued on the date of grant. For performance-based RSUs, the grant-date fair value considers both performance and market conditions. As stock-based compensation expense is estimated based on awards ultimately expected to vest, it is reduced by the expense related to awards expected to be forfeited. Forfeitures are estimated at the time of grant and are updated quarterly. If the estimated forfeitures are revised, a cumulative effect of changes in estimated forfeitures for the current and prior periods is recognized in compensation expense in the period of change. For performance-based RSUs, the compensation expense fluctuates based on the estimated outcome of meeting the performance conditions. The Company evaluates the probable outcome of the performance conditions quarterly and makes cumulative adjustments for current and prior periods in compensation expense in the period of change. Market conditions subsequent to the grant date have no impact on the amount of compensation expense the Company will recognize over the life of the award.The amount of performance-based RSUs that are eligible to vest is determined at the end of each performance period and is then added together as the total number of performance shares to vest. Performance-based RSUs cliff vest three years from the date of each grant.

Compensation costs for the time-based awards that will be settled in shares of the Company’s common stock are based on the quoted market price of the Company’s common stock at the grant date. Compensation costs for certain time-based awards that will be settled in cash are adjusted to fair value based on changes in the share price of the Company’s common stock up to the settlement date. Compensation costs associated with performance-based RSUs are based on grant date fair value which considers both market and performance conditions, and is subject to subsequent adjustments based on the changes in the Company’s projected outcome of the performance criteria. Compensation costs of both time-based and performance-based awards are estimated based on awards ultimately expected to vest and recognized on a straight-line basis from the grant date until the vesting date of each grant.

Income Taxes

Income Taxes — The Company files consolidated federal income tax returns, foreign tax returns, and various combined and separate company state tax returns. The calculation of the Company's income tax provision and related tax accruals requires the use of estimates and judgments. Accrued income tax liabilities (assets) represent the estimated amounts due to (received from) the various taxing jurisdictions where the Company has established a business presence. Under the balance sheet method, deferred tax assets and liabilities are recognized for the expected future tax consequences of existing temporary differences between the financial reporting and tax reporting basis of assets and liabilities using enacted tax laws and rates and tax carryforwards. To the extent a deferred tax asset is no longer expected more-likely-than-not to be realized, a valuation allowance is established. See Note 14 — Income Taxes to the Consolidated Financial Statements for a discussion of management’s assessment of evidence considered by the Company in establishing a valuation allowance.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. Uncertain tax positions that meet the more-likely-than-not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. The Company establishes a liability for potential taxes, interest and penalties related to uncertain tax positions based on facts and circumstances, including the interpretation of existing law, new judicial or regulatory guidance, and the status of tax audits.

Earnings Per Share

Earnings Per Share — Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period, plus any incremental dilutive common share equivalents calculated for warrants and RSUs outstanding using the treasury stock method.

Foreign Currency Translation

Foreign Currency Translation — The Company’s foreign subsidiary in China, East West Bank (China) Limited’s functional currency is in Chinese Renminbi (“RMB”). As a result, assets and liabilities of East West Bank (China) Limited are translated, for consolidation purpose, from its functional currency into U.S. Dollar (“USD”) using period-end spot foreign exchange rates. Revenues and expenses of East West Bank (China) Limited are translated, for the purpose of consolidation, from its functional currency into USD at the transaction date foreign exchange rates. The effects of those translation adjustments are reported in the Foreign currency translation adjustments account within Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of any related hedged effects. For transactions that are denominated in a currency other than the functional currency, including transactions denominated in the local currencies of foreign operations that use the USD as their functional currency, the effects of changes in exchange rates are primarily reported on the Consolidated Statement of Income.

New Accounting Pronouncements Adopted and Recent Accounting Pronouncements

New Accounting Pronouncements Adopted in 2019

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2019
ASU 2016-02, Leases (Topic 842) and subsequent related ASUs	January 1, 2019 for leases standards other than ASU 2019-01 January 1, 2020 for ASU 2019-01 where early adoption is permitted.	ASC Topic 842, Leases, supersedes ASC Topic 840, Leases. This ASU requires lessees to recognize right-of-use assets and related lease liabilities for all leases with lease terms of more than 12 months on the Consolidated Balance Sheet, and provide quantitative and qualitative disclosures regarding key information about the leasing arrangements. For short-term leases with a term of 12 months or less, lessees can make a policy election not to recognize lease assets and lease liabilities. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. Lessee accounting for finance leases, as well as lessor accounting is largely unchanged. The standard may be adopted using a modified retrospective approach through a cumulative-effect adjustment. In addition, the FASB issued ASU 2018-11, Leases (Topic 842) Targeted Improvements, which provides companies the option to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year they adopt ASU 2016-02. Companies that elect this transition option can recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented.	The Company adopted all the new lease standards on January 1, 2019 using the alternative transition method, which allows the adoption of the accounting standard prospectively without revising comparable prior periods’ financial information. On January 1, 2019, the Company recognized $109.1 million and $117.7 million increase in right-of-use assets and associated lease liabilities, respectively, based on the present value of the expected remaining operating lease payments. In addition, the Company also recognized a cumulative-effect adjustment, net of tax of $10.5 million to increase beginning balance of retained earnings as of January 1, 2019 related to the deferred gains on our prior sale and leaseback transactions that occurred prior to the date of adoption. The adoption of the new leases standards did not have a material impact on the Company’s Consolidated Statement of Income. Disclosures related to leases are included in Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K.
ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes	January 1, 2019 Early adoption (including adoption in an interim period) is permitted for entities that already adopted ASU 2017-12.	This ASU amends ASC Topic 815, Derivatives and Hedging, by adding the OIS rate based on SOFR to the list of U.S. benchmark interest rates that are eligible to be hedged to facilitate the London Interbank Offered Rate (“LIBOR”) to SOFR transition. The guidance should be applied prospectively for qualifying new or redesignated hedging relationships entered into on or after the date of adoption.	The Company adopted ASU 2018-16 prospectively on January 1, 2019. The adoption of this guidance did not impact existing hedges but may impact new hedge relationships that are benchmarked against the SOFR OIS rate.

Recent Accounting Pronouncements

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2020
ASU 2016-13,  Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and subsequent related ASUs	January 1, 2020 Early adoption is permitted on January 1, 2019.	The ASU introduces a new current expected credit loss (“CECL”) impairment model that applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loan receivables, AFS and held-to-maturity debt securities, net investments in leases and off-balance sheet credit exposures. The CECL model utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted in each period for changes in expected lifetime credit losses. This ASU also expands the disclosure requirements regarding an entity’s assumptions, models and methods for estimating the allowance for loan and lease losses, and requires disclosure of the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination (i.e., by vintage year). The guidance should be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption. The new guidance also allows optional relief for certain instruments measured at amortized cost with an option to irrevocably elect the fair value option under ASC Topic 825, Financial Instruments.	The Company adopted ASU 2016-13 using a modified retrospective approach on January 1, 2020 without electing the fair value option on eligible financial instruments under ASU 2019-05. The Company has completed its implementation of the new processes and controls over the new credit and loss aggregation models, completed two parallel runs, analyzed model results, revised the qualitative framework and updated policies and disclosures. Upon adoption of the ASU, the Company‘s ACL, which includes the reserve for unfunded credit commitments, increased approximately 34% from $369.4 million as of December 31, 2019. This impact was recorded as a cumulative-effect adjustment that reduced retained earnings on January 1, 2020.  This increase in ACL was mainly driven by the Company’s C&I and CRE loan portfolios due to the capture of lifetime expected credit losses under the new guidance. There was no ACL recorded on the AFS securities portfolio upon the adoption of this guidance. The regulatory rules provide the banks with the option to elect a three-year phase-in of the “day one” impact of CECL. The Company has elected not to apply the three-year phased-in approach in its first quarter 2020’s regulatory capital calculations. Upon adoption of CECL, the Company and the Bank are well-capitalized.
ASU2017-04,  Intangibles — Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	January 1, 2020 Early adoption is permitted for interim or annual goodwill impairment tests with measurement dates after January 1, 2017.	The ASU simplifies the accounting for goodwill impairment. Under this guidance, an entity will no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, an impairment loss will be recognized when the carrying amount of a reporting unit exceeds its fair value. The guidance also eliminates the requirement to perform a qualitative assessment for any reporting units with a zero or negative carrying amount. This guidance should be applied prospectively.	The Company adopted this guidance on January 1, 2020. The Company does not expect the adoption of this guidance to have a material impact on the Company’s Consolidated Financial Statements.
ASU 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020 Early adoption is permitted.	The ASU amends ASC Topic 350-40 to align the accounting for costs incurred in a cloud computing arrangement with the guidance on developing internal use software. Specifically, if a cloud computing arrangement is deemed to be a service contract, certain implementation costs are eligible for capitalization. The new guidance prescribes the balance sheet and income statement presentation and cash flow classification for the capitalized costs and related amortization expense. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.	The Company adopted this guidance on a prospective basis on January 1, 2020. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

Fair Value Determination

Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining the fair value of financial instruments, the Company uses various methods including market and income approaches. Based on these approaches, the Company utilizes certain assumptions that market participants would use in pricing an asset or a liability. These inputs can be readily observable, market corroborated or generally unobservable. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy noted below is based on the quality and reliability of the information used to determine fair value. The fair value hierarchy gives the highest priority to quoted prices available in active markets and the lowest priority to data lacking transparency. The fair value of the Company’s assets and liabilities is classified and disclosed in one of the following three categories:

• Level 1 — Valuation is based on quoted prices for identical instruments traded in active markets.

• Level 2 — Valuation is based on quoted prices for similar instruments traded in active markets; quoted prices for identical or similar instruments traded in markets that are not active; and model-derived valuations whose inputs are observable and can be corroborated by market data.

• Level 3 — Valuation is based on significant unobservable inputs for determining the fair value of assets or liabilities. These significant unobservable inputs reflect assumptions that market participants may use in pricing the assets or liabilities.

The classification of assets and liabilities within the hierarchy is based on whether inputs to the valuation methodology used are observable or unobservable, and the significance of those inputs in the fair value measurement. The Company’s assets and liabilities are classified in their entirety based on the lowest level of input that is significant to their fair value measurements.

Credit Quality Indicators

Credit Quality Indicators

All loans are subject to the Company’s credit review and monitoring. For the commercial portfolio, loans are risk rated based on an analysis of the current state of the borrower’s payment performance or delinquency, repayment sources, financial and liquidity factors that include industry and geographic considerations. For the majority of the consumer portfolio, payment performance or delinquency is the driving indicator for the risk ratings.

For the Company’s internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 5 are assigned an internal risk rating of “Pass”, with loans risk-rated 1 being fully secured by cash or U.S. government securities. Pass loans have sufficient sources of repayment in order to repay the loan in full in accordance with all terms and conditions. Loans risk-rated 6 are loans that have potential weaknesses that warrant closer attention by management and are assigned an internal risk rating of “Special Mention”. Loans risk-rated 7 and 8 are loans that have well-defined weaknesses that may jeopardize the full and timely repayment of the loan and are assigned an internal risk rating of “Substandard”. Loans risk-rated 9 are loans that have insufficient sources of repayment and a high probability of loss and are assigned an internal risk rating of “Doubtful”. Loans risk-rated 10 are loans that are uncollectable and of such little value that they are no longer considered bankable assets and are assigned an internal risk rating of “Loss”. These internal risk ratings are reviewed routinely and adjusted based on changes in the borrowers’ financial status and the loans’ collectability.

Variable Interest Entity (VIEs)

Variable Interest Entities

The Company invests in unconsolidated limited partnerships and similar entities that construct, own and operate affordable housing, historic rehabilitation projects, wind and solar projects, of which the majority of such investments are VIEs. As a limited partner in these partnerships, these investments are designed to generate a return primarily through the realization of federal tax credits and tax benefits. An unrelated third party is typically the general partner or managing member who has control over the significant activities of such investments. While the Company’s interest in some of the investments may exceed 50% of the outstanding equity interests, the Company does not consolidate these structures due to the general partner or managing member’s ability to manage the entity, which is indicative of power over them. The Company’s maximum exposure to loss in connection with these partnerships consist of the unamortized investment balance and any tax credits claimed that may become subject to recapture.

Special purpose entities formed in connection with securitization transactions are generally considered VIEs. The Company is the servicer of the multifamily residential loans it has securitized in 2016. The Company does not consolidate the multifamily securitization entity because it does not have power and does not have a variable interest that could potentially be significant to the VIE. A CLO is a VIE that purchases a pool of assets consisting primarily of non-investment grade corporate loans and issues multiple tranches of notes to investors to fund the asset purchases and pay upfront expenses associated with forming the CLO. The Company serves as the collateral manager of a CLO that closed in the fourth quarter of 2019 and retained a portion of the senior securities issued by the CLO. The Company does not consolidate the CLO as it does not hold interests that could potentially be significant to the CLO.

Revenue Recognition

Generally, the Company recognizes revenue from contracts with customers when it satisfies its performance obligations. The Company’s performance obligations are typically satisfied as services are rendered. The Company generally records contract liabilities, or deferred revenue, when payments from customers are received or due in advance of providing services. The Company records contract assets when services are provided to customers before payment is received or before payment is due.

Litigation

Litigation — The Company is a party to various legal actions arising in the course of its business. In accordance with ASC 450, Contingencies, the Company accrues reserves for outstanding lawsuits, claims and proceedings when a loss contingency is probable and can be reasonably estimated. The Company estimates the amount of loss contingencies using current available information from legal proceedings, advice from legal counsel and available insurance coverage. Due to the inherent subjectivity of the assessments and unpredictability of the outcomes of the legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, the Company’s exposure and ultimate losses may be higher, and possibly significantly more than the amounts accrued.

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Dispositions

12 Months Ended

Dec. 31, 2019

Dispositions Classification [Abstract]

Dispositions

Dispositions

In the first quarter of 2017, the Company completed the sale and leaseback of a commercial property in San Francisco, California for cash consideration of $120.6 million and entered into a leaseback with the buyer for part of the property, consisting of a retail branch and office facilities. The net book value of the property was $31.6 million at the time of the sale, resulting in a pre-tax gain of $85.4 million after considering $3.6 million in selling costs. As the leaseback is an operating lease, $71.7 million of the gain was recognized on the closing date, and $13.7 million was deferred. Upon the adoption of ASU 2016-02, Leases, (Topic 842) on January 1, 2019, any remaining deferred gains related to sale and leaseback transactions were recognized as a cumulative-effect adjustment to increase beginning retained earnings as of January 1, 2019.

In the third quarter of 2017, the Company sold the insurance brokerage business of its subsidiary, EWIS, for $4.3 million, and recorded a pre-tax gain of $3.8 million. EWIS remains a subsidiary of East West and continues to maintain its insurance broker license.

On March 17, 2018, the Bank completed the sale of its eight Desert Community Bank (“DCB”) branches located in the High Desert area of Southern California to Flagstar Bank, a wholly-owned subsidiary of Flagstar Bancorp, Inc. The assets and liability of the DCB branches that were sold in this transaction primarily consisted of $613.7 million of deposits, $59.1 million of loans, $9.0 million of cash and cash equivalents, and $7.9 million of premises and equipment. The transaction resulted in a net cash payment of $499.9 million by the Company to Flagstar Bank. After transaction costs, the sale resulted in a pre-tax gain of $31.5 million for the year ended December 31, 2018, which was reported as Net gain on sale of business on the Consolidated Statement of Income.

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Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lessee, Lease, Description [Line Items]
Option to extend, operating lease (up to)	15 years
Rental expense		$ 31,900	$ 29,700
2019		42,000
2020		36,200
2021		30,700
2022		21,400
2023		15,000
Thereafter		$ 40,400
Net investment in direct financing and sales-type lease	$ 141,310
Carrying amount of guaranteed residual value	$ 31,600
Minimum
Lessee, Lease, Description [Line Items]
Operating lease expiration date	2020
Finance lease expiration date	2021
Direct financing sales-type lease expiration date	2020
Maximum
Lessee, Lease, Description [Line Items]
Operating lease expiration date	2030
Finance lease expiration date	2047
Direct financing sales-type lease expiration date	2027

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Leases (Maturity Analysis of Operating and Finance Lease Liabilities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Leases
2020	$ 32,590
2021	28,761
2022	19,073
2023	12,069
2024	9,150
Thereafter	14,636
Total minimum lease payments	116,279
Less: imputed interest	(8,196)
Present value of lease liabilities	108,083
Finance Leases
2020	1,059
2021	1,053
2022	698
2023	403
2024	157
Thereafter	3,305
Total minimum lease payments	6,675
Less: imputed interest	(1,506)
Present value of lease liabilities	$ 5,169

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Derivatives

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Derivatives

The Company uses derivatives to manage exposure to market risk, primarily interest rate risk and foreign currency risk, and to assist customers with their risk management objectives. The Company’s goal is to manage interest rate sensitivity and volatility so that movements in interest rates are not significant to earnings or capital. The Company also uses foreign exchange contracts to manage the foreign exchange rate risk associated with certain foreign currency-denominated assets and liabilities, as well as the Company’s investment in its China subsidiary, East West Bank (China) Limited. The Company recognizes all derivatives on the Consolidated Balance Sheet at fair value. While the Company designates certain derivatives as hedging instruments in a qualifying hedge accounting relationship, other derivatives consist of economic hedges. For additional information on the Company’s derivatives and hedging activities, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Derivatives to the Consolidated Financial Statements in this Form 10-K.

The following table presents the total notional amounts and gross fair values of the Company’s derivatives, as well as the balance sheet netting adjustments on an aggregate basis as of December 31, 2019 and 2018. The derivative assets and liabilities are presented on a gross basis prior to the application of bilateral collateral and master netting agreements, but after the variation margin payments with central clearing organizations have been applied as settlement, as applicable. Total derivative assets and liabilities are adjusted to take into consideration the effects of legally enforceable master netting agreements and cash collateral received or paid as of December 31, 2019 and 2018. The resulting net derivative asset and liability fair values are included in Other assets and Accrued expenses and other liabilities, respectively, on the Consolidated Balance Sheet.

($ in thousands)	December 31, 2019									December 31, 2018
	Notional Amount			Fair Value						Notional Amount			Fair Value
				Derivative Assets			Derivative Liabilities						Derivative Assets			Derivative Liabilities
Derivatives designated as hedging instruments:
Fair value hedges:
Interest rate contracts	$	31,026		$	—		$	3,198		$	35,811		$	—		$	5,866
Net investment hedges:
Foreign exchange contracts	86,167			—			1,586			90,245			—			611
Total derivatives designated as hedging instruments	$	117,193		$	—		$	4,784		$	126,056		$	—		$	6,477
Derivatives not designated as hedging instruments:
Interest rate contracts	$	15,489,692		$	192,883		$	124,119		$	11,695,499		$	69,818		$	69,267
Foreign exchange contracts	4,839,661			54,637			47,024			3,407,522			21,624			19,329
Credit contracts	210,678			2			84			119,320			1			164
Equity contracts	—		(1)	1,414			—			—		(1)	1,951			—
Commodity contracts	—		(2)	81,380			80,517			—		(2)	14,422			23,068
Total derivatives not designated as hedging instruments	$	20,540,031		$	330,316		$	251,744		$	15,222,341		$	107,816		$	111,828
Gross derivative assets/liabilities				$	330,316		$	256,528					$	107,816		$	118,305
Less: Master netting agreements				(121,561		)	(121,561		)				(31,569		)	(31,569		)
Less: Cash collateral received/paid				(3,758		)	(38,238		)				(13,577		)	(6,833		)
Net derivative assets/liabilities				$	204,997		$	96,729					$	62,670		$	79,903

(1) The Company held equity contracts in three public companies and 18 private companies as of December 31, 2019. In comparison, the Company held equity contracts in four public companies and 18 private companies as of December 31, 2018.

(2) The notional amount of the Company’s commodity contracts entered with its customers totaled 7,811 thousand barrels of crude oil and 63,773 thousand units of natural gas, measured in million British thermal units (“MMBTUs”) as of December 31, 2019. In comparison, the notional amount of the Company’s commodity contracts entered with its customers totaled 2,507 thousand of crude oil and 14,722 thousand MMBTUs of natural gas as of December 31, 2018. The Company simultaneously entered into the offsetting commodity contracts with mirrored terms with third-party financial institutions.

Derivatives Designated as Hedging Instruments

Fair Value Hedges — The Company is exposed to changes in the fair value of certain certificates of deposit due to changes in the benchmark interest rates. The Company entered into interest rate swaps, which were designated as fair value hedges. The interest rate swaps involve the exchange of variable rate payments over the life of the agreements without the exchange of the underlying notional amounts.

The following table presents the net gains (losses) recognized on the Consolidated Statement of Income related to the derivatives designated as fair value hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Gains (losses) recorded in interest expense:
Recognized on interest rate swaps	$	2,655		$	(93	)	$	(2,734	)
Recognized on certificates of deposit	$	(2,536	)	$	278		$	2,271

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of the hedged certificates of deposit as of December 31, 2019 and 2018:

($ in thousands)	Carrying Value (1)						Cumulative Fair Value Adjustment (2)
	December 31,						December 31,
	2019			2018			2019		2018
Certificates of deposit	$	(29,080	)	$	(26,877	)	$	1,604	$	4,141

(1) Represents the full carrying amount of the hedged certificates of deposit.

(2) For liabilities, (increase) decrease to carrying value.

Net Investment Hedges — ASC 830-20, Foreign Currency Matters — Foreign Currency Transactions and ASC 815, Derivatives and Hedging, allow hedging of the foreign currency risk of a net investment in a foreign operation. The Company enters into foreign currency contracts to hedge a portion of its investment in East West Bank (China) Limited, a non-USD functional currency subsidiary in China. The hedging instruments designated as net investment hedges, involve hedging the risk of changes in the USD equivalent value of a designated monetary amount of the Company’s net investment in East West Bank (China) Limited, against the risk of adverse changes in the foreign currency exchange rate of the RMB. The Company may de-designate the net investment hedges when the Company expects the hedge will cease to be highly effective. The notional and fair value amounts of the net investment hedges, made up of foreign exchange forwards, were $86.2 million and $1.6 million liability as of December 31, 2019. In comparison, the notional and fair value amounts of the net investment hedges, made up of foreign exchange swaps, were $90.2 million and a $611 thousand liability, respectively, as of December 31, 2018.

The following table presents the (losses) gains recorded on net investment hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018		2017
(Losses) gains recognized in AOCI	$	(471	)	$	6,072	$	(648	)
(Losses) recognized in Foreign exchange income(1)	$	—		$	—	$	(1,953	)

(1) Represents the losses recorded in the Consolidated Statement of Income related to the ineffective portion of the net investment hedges prior to the adoption of ASU 2017-12, effective January 1, 2018. After the adoption, the fair value gains (losses) are recorded in Foreign Currency Translation Adjustments within AOCI.

Derivatives Not Designated as Hedging Instruments

Interest Rate Contracts — The Company enters into interest rate contracts, which include interest rate swaps and options with its customers to allow customers to hedge against the risk of rising interest rates on their variable rate loans. To economically hedge against the interest rate risks in the products offered to its customers, the Company enters into mirrored offsetting interest rate contracts with third-party financial institutions, including central clearing organizations. Beginning in January 2018, the London Clearing House (“LCH”) amended its rulebook to legally characterize variation margin payments made to and received from LCH as settlements of derivatives, and not as collateral against derivatives. Included in the total notional amount of $7.75 billion of interest rates contracts entered into with financial counterparties as of December 31, 2019, was a notional amount of $2.53 billion of interest rates swaps that cleared through LCH. Applying variation margin payments as settlement to LCH cleared derivative transactions resulted in a reduction in derivative asset fair values of $2.9 million and liability fair values of $75.1 million, as of December 31, 2019. In comparison, included in the total notional amount of $5.85 billion of interest rates contracts entered into with financial counterparties as of December 31, 2018, was a notional amount of $1.66 billion of interest rate swaps that cleared through LCH. Applying variation margin payments as settlement to LCH cleared derivative transactions resulted in a reduction in derivative asset fair values of $16.4 million and liability fair values of $16.0 million, as of December 31, 2018.

The following tables present the notional amounts and the gross fair values of interest rate derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	1,003,558	$	—	$	66	Purchased options	$	1,003,558	$	67	$	—
Sold collars and corridors	490,852		1,971		16		Collars and corridors	490,852		17		1,996
Swaps	6,247,667		187,294		6,237		Swaps	6,253,205		3,534		115,804
Total	$	7,742,077	$	189,265	$	6,319	Total	$	7,747,615	$	3,618	$	117,800

($ in thousands)	December 31, 2018
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	931,601	$	—	$	492	Purchased options	$	931,601	$	503	$	—
Sold collars and corridors	429,879		1,121		305		Collars and corridors	429,879		308		1,140
Swaps	4,482,881		41,457		41,545		Swaps	4,489,658		26,429		25,785
Total	$	5,844,361	$	42,578	$	42,342	Total	$	5,851,138	$	27,240	$	26,925

Foreign Exchange Contracts — The Company enters into foreign exchange contracts with its customers, consisting of forwards, spot, swap and option contracts to accommodate the business needs of its customers. For a portion of the foreign exchange contracts entered into with its customers, the Company either entered into offsetting foreign exchange contracts with third-party financial institutions or acquires collateral on a portfolio basis primarily in the form of cash to manage its exposure. The Company also utilizes foreign exchange contracts, which are not designated as hedging instruments to mitigate the economic effect of currency fluctuations on certain foreign currency-denominated on-balance sheet assets and liabilities, primarily for foreign currency-denominated deposits offered to its customers. A majority of the foreign exchange contracts had original maturities of one year or less as of both December 31, 2019 and 2018.

The following tables present the notional amounts and the gross fair values of foreign exchange derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	3,581,036	$	45,911	$	40,591	Forwards and spot	$	207,492	$	1,400	$	507
Swaps	6,889		16		84		Swaps	702,391		6,156		4,712
Written options	87,036		127		—		Purchased options	87,036		—		127
Collars	2,244		—		14		Collars	165,537		1,027		989
Total	$	3,677,205	$	46,054	$	40,689	Total	$	1,162,456	$	8,583	$	6,335

($ in thousands)	December 31, 2018
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	2,023,425	$	11,719	$	13,079	Forwards and spot	$	506,342	$	3,407	$	2,285
Swaps	21,108		348		243		Swaps	687,845		5,764		3,336
Written options	537		16		—		Purchased options	537		—		16
Collars	83,864		—		370		Collars	83,864		370		—
Total	$	2,128,934	$	12,083	$	13,692	Total	$	1,278,588	$	9,541	$	5,637

Credit Contracts — The Company may periodically enter into RPA contracts to manage the credit exposure on interest rate contracts associated with syndicated loans. The Company may enter into protection sold or protection purchased RPAs with institutional counterparties. Under the RPA, the Company will receive or make a payment if a borrower defaults on the related interest rate contract. The Company manages its credit risk on RPAs by monitoring the creditworthiness of the borrowers and institutional counterparties, which is based on the normal credit review process. The referenced entities of the RPAs were investment grade as of both December 31, 2019 and 2018. The notional amount of the RPAs reflects the Company’s pro-rata share of the derivative instrument. The following table presents the notional amounts and the gross fair values of RPAs sold and purchased outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019						December 31, 2018
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Assets		Liabilities				Assets		Liabilities
RPAs - protection sold	$	199,964	$	—	$	84	$	108,606	$	—	$	164
RPAs - protection purchased	10,714		2		—		10,714		1		—
Total RPAs	$	210,678	$	2	$	84	$	119,320	$	1	$	164

Assuming all underlying borrowers referenced in the interest rate contracts defaulted as of December 31, 2019 and 2018, the exposure from the RPAs with protections sold would be $125 thousand for both 2019 and 2018.  As of December 31, 2019 and 2018, the weighted-average remaining maturities of the outstanding RPAs were 2.2 and 6.6 years, respectively.

Equity Contracts — As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of technology and life sciences companies it provides loans to. Equity warrants grant the Company the right to buy a certain class of the underlying company’s equity at a certain price before expiration. The Company held warrants in three public companies and 18 private companies as of December 31, 2019, and held warrants in four public companies and 18 private companies as of December 31, 2018. The total fair value of the warrants held in both public and private companies was $1.4 million and $2.0 million in assets as of December 31, 2019 and 2018, respectively.

Commodity Contracts — Beginning in 2018, the Company entered into energy commodity contracts in the form of swaps and options with its commercial loan customers to allow them to hedge against the risk of fluctuation in energy commodity prices. To economically hedge against the risk of fluctuation in commodity prices in the products offered to its customers, the Company entered into offsetting commodity contracts with third-party financial institutions to manage the exposure with its customers. Beginning in January 2017, the Chicago Mercantile Exchange (“CME”) amended its rulebook to legally characterize variation margin payments made to and received from CME as settlements of derivatives and not as collateral against derivatives. The notional quantities that cleared through CME totaled 1,752 thousand barrels of crude oil and 6,075 thousand MMBTUs of natural gas as of December 31, 2019. Applying variation margin payments as settlement to CME-cleared derivative transactions resulted in a reduction in gross derivative asset fair values of $2.9 million and liability fair values of $1.5 million, respectively, as of December 31, 2019, for a net asset fair value of $986 thousand. In comparison, the notional quantities that cleared through CME totaled 778 thousand barrels of crude oil and 6,290 thousand MMBTUs of natural gas as of December 31, 2018. Applying variation margin payments as settlement to CME-cleared derivative transactions resulted in a reduction in gross derivative asset fair values of $10.4 million and liability fair values of $582 thousand as of December 31, 2018, for a net asset fair value of $622 thousand.

The following table presents the notional amounts and fair values of the commodity derivative positions outstanding as of December 31, 2019 and 2018.

($ and units in thousands)	December 31, 2019
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	36	Barrels	$	—	$	30	Purchased options	36	Barrels	$	29	$	—
Collars	3,174	Barrels	2,673		538		Collars	3,630	Barrels	677		2,815
Swaps	4,601	Barrels	6,949		5,531		Swaps	4,721	Barrels	4,516		5,215
Total	7,811		$	9,622	$	6,099	Total	8,387		$	5,222	$	8,030
Natural gas:							Natural gas:
Written options	540	MMBTUs	$	—	$	22	Purchased options	530	MMBTUs	$	21	$	—
Collars	14,277	MMBTUs	186		522		Collars	14,517	MMBTUs	471		150
Swaps	48,956	MMBTUs	30,257		35,497		Swaps	48,779	MMBTUs	35,601		30,197
Total	63,773		$	30,443	$	36,041	Total	63,826		$	36,093	$	30,347
Total			$	40,065	$	42,140	Total			$	41,315	$	38,377

($ and units in thousands)	December 31, 2018
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	524	Barrels	$	—	$	2,628	Purchased options	524	Barrels	$	2,251	$	—
Collars	872	Barrels	—		3,772		Collars	872	Barrels	3,225		—
Swaps	1,111	Barrels	—		14,278		Swaps	1,111	Barrels	5,799		—
Total	2,507		$	—	$	20,678	Total	2,507		$	11,275	$	—
Natural gas:							Natural gas:
Collars	3,063	MMBTUs	$	78	$	152	Collars	3,063	MMBTUs	$	151	$	64
Swaps	11,659	MMBTUs	1,049		1,857		Swaps	11,659	MMBTUs	1,869		317
Total	14,722		$	1,127	$	2,009	Total	14,722		$	2,020	$	381
Total			$	1,127	$	22,687	Total			$	13,295	$	381

The following table presents the net gains (losses) recognized on the Company’s Consolidated Statement of Income related to derivatives not designated as hedging instruments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Classification in Consolidated Statement of Income	Year Ended December 31,
		2019			2018			2017
Derivatives not designated as hedging instruments:
Interest rate contracts	Interest rate contracts and other derivative income	$	(2,126	)	$	280		$	(1,772	)
Foreign exchange contracts	Foreign exchange income	22,264			16,784			22,076
Credit contracts	Interest rate contracts and other derivative income	59			(156		)	(7		)
Equity contracts	Lending fees	678			512			1,672
Commodity contracts	Interest rate contracts and other derivative income	(67		)	(11		)	—
Net gains		$	20,808		$	17,409		$	21,969

Credit-Risk-Related Contingent Features — Certain over-the-counter derivative contracts of the Company contain early termination provisions that may require the Company to settle any outstanding balances upon the occurrence of a specified credit-risk-related event. These events, which are defined by the existing derivative contracts, primarily relate to a downgrade in the credit rating of East West Bank to below investment grade. As of December 31, 2019, the net fair value of all derivative instruments with such credit-risk-related contingent features was a $56.4 million net liability position, comprising $14.4 million in derivative assets and $70.8 million in derivative liabilities, with associated posted collateral of $56.4 million. As of December 31, 2018, the net fair value of all derivative instruments with such credit-risk-related contingent features was an $11.4 million net liability position, comprising $2.8 million derivative assets and $14.2 million in derivative liabilities, with associated posted collateral of $9.4 million. In the event that the credit rating of East West Bank had been downgraded to below investment grade, additional minimal collateral would have been required to be posted as of December 31, 2019 and 2018.

Offsetting of Derivatives

The following tables present the gross derivative fair values, the balance sheet netting adjustments and the resulting net fair values recorded on the consolidated balance sheet, as well as the cash and non-cash collateral associated with master netting arrangements. The gross amounts of derivative assets and liabilities are presented after the application of variation margin payments as settlements with centrally cleared organizations, where applicable. The collateral amounts in following tables are limited to the outstanding balances of the related asset or liability, after the application of netting; therefore instances of overcollateralization are not shown:

($ in thousands)	As of December 31, 2019
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	330,316	$	(121,561	)	$	(3,758	)	$	204,997	$	—		$	204,997
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	256,528	$	(121,561	)	$	(38,238	)	$	96,729	$	(79,619	)	$	17,110

($ in thousands)	As of December 31, 2018
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	107,816	$	(31,569	)	$	(13,577	)	$	62,670	$	(13,975	)	$	48,695
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	118,305	$	(31,569	)	$	(6,833	)	$	79,903	$	(11,231	)	$	68,672

(1) Gross amounts recognized for derivative assets include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $328.7 million and $105.9 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $1.6 million and $2.0 million, respectively, as of December 31, 2019 and 2018.

(2) Gross amounts recognized for derivative liabilities include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $256.5 million and $118.2 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $20 thousand and $102 thousand, respectively, as of December 31, 2019 and 2018.

(3) Gross cash collateral received under master netting arrangements or similar agreements were $3.8 million and $15.8 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral received,$3.8 million and $13.6 million were used to offset against derivative assets, respectively, as of December 31, 2019 and 2018.

(4) Gross cash collateral pledged under master netting arrangements or similar agreements were $43.0 million and $8.4 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral pledged, $38.2 million and $6.8 million were used to offset against derivative liabilities, respectively, as of December 31, 2019 and 2018.

(5) Represents the fair value of security collateral received and pledged limited to derivative assets and liabilities that are subject to enforceable master netting arrangements or similar agreements. GAAP does not permit the netting of non-cash collateral on the consolidated balance sheet but requires disclosure of such amounts.

In addition to the amounts included in the tables above, the Company also has balance sheet netting related to the resale and repurchase agreements. Refer to Note 4 — Securities Purchased under Resale Agreements and Sold under Repurchase Agreements to the Consolidated Financial Statements for additional information. Refer to Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for fair value measurement disclosures on derivatives.

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Leases

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Leases

Leases

On January 1, 2019, the Company adopted ASU 2016-02, Leases (Topic 842), as amended. As both a lessee and lessor, the Company elected the package of practical expedients available for leases that commenced before the adoption date. As such, the Company need not reassess: (1) whether any expired or existing contracts are or contain leases; (2) the lease classification for any expired or existing leases; and (3) the initial direct costs for any expired or existing leases, such as costs that would qualify for capitalization. The Company also elected the hindsight practical expedient to determine the lease term and to assess impairment on the Company’s right-of-use assets, and the practical expedient to not separate lease and non-lease components, consistently across all leases.

Lessee Arrangements

The Company determines if an arrangement is a lease or contains a lease at inception. As of December 31, 2019, the Company was obligated under a number of non-cancellable leases, predominantly operating leases for certain retail banking branches and office spaces in the U.S. and Greater China. These operating leases expire in the years ranging from 2020 to 2030, exclusive of renewal and termination options. Some of these leases include options to extend the leases for up to 15 years, while certain leases include lessee termination options. The Company's measurement of the operating lease liability and right-of-use asset does not include payments associated with the options to extend or terminate the lease since it is not reasonably certain that the Company will exercise the options. A portion of the operating leases includes variable lease payments, primarily based on the usage of the asset or the consumer price index as specified in the lease agreements. The Company does not remeasure lease liabilities as a result of changes to variable lease payments. The Company also has equipment and air rights finance leases which expire in the years ranging from 2021 to 2047.

The right-of-use assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s leases do not provide an implicit rate, the Company’s incremental borrowing rate based on the information available at the later of the adoption date or the lease commencement date is used to determine the present value of future payments. This approximates a collateralized borrowing rate over a similar term for an amount equal to the lease payments in a similar economic environment.

The following table presents the lease related assets and liabilities recorded on the Consolidated Balance Sheet as of December 31, 2019:

($ in thousands)	Classification on the Consolidated Balance Sheet	December 31, 2019
Assets:
Operating lease assets	Operating lease right-of use assets	$	99,973
Finance lease assets	Premises and equipment	7,897
Total lease assets		$	107,870
Liabilities:
Operating lease liabilities	Operating lease liabilities	$	108,083
Finance lease liabilities	Long-term debt and finance lease liabilities	5,169
Total lease liabilities		$	113,252

The following table presents the components of lease expense for operating and finance leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Operating lease cost	$	34,850
Finance lease cost:
Amortization of right-of-use assets	807
Interest on lease liabilities	161
Variable lease cost	120
Sublease income	(81		)
Net lease cost	$	35,857

The following table presents the supplemental cash flow information related to leases for the year ended December 31, 2019:

($ in thousands)	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	35,496
Operating cash flows from finance leases	$	161
Financing cash flows from finance leases	$	883
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases	$	21,716
Financing leases	$	304

The following table presents the weighted-average remaining lease terms and discount rates related to leases as of December 31, 2019:

	December 31, 2019
Weighted-average remaining lease term (in years):
Operating leases	4.6
Finance leases	16.2
Weighted-average discount rate:
Operating leases	3.19	%
Finance leases	2.84	%

The following table presents a maturity analysis of the Company’s operating and finance lease liabilities as of December 31, 2019:

($ in thousands)	Operating Leases			Finance Leases
2020	$	32,590		$	1,059
2021	28,761			1,053
2022	19,073			698
2023	12,069			403
2024	9,150			157
Thereafter	14,636			3,305
Total minimum lease payments	$	116,279		$	6,675
Less: imputed interest	(8,196		)	(1,506		)
Present value of lease liabilities	$	108,083		$	5,169

Upon adopting the new lease guidance, the Company elected the modified retrospective approach without revising comparative prior periods. Rental expense related to non-cancellable operating lease agreements was $31.9 million and $29.7 million for the years ended December 31, 2018 and 2017, respectively. As of December 31, 2018, the minimum rental payments under non-cancellable operating leases were $42.0 million, $36.2 million, $30.7 million, $21.4 million and $15.0 million for 2019 through 2023, respectively, and $40.4 million in the aggregate for all years thereafter.

Lessor Arrangements

The Company finances equipment under direct financing and sales-type leases to its commercial customers. As of December 31, 2019, the total net investment in direct financing and sales-type leases was $141.3 million with expiration in the years ranging from 2020 to 2027, exclusive of renewal options. Some of the leases include options to extend the leases, while others include early buyout options. As the Company is not reasonably certain at lease commencement that the purchase options will be exercised by the lessees, the lease terms exclude the purchase option.

The unguaranteed residual value is recorded at the present value of the amount the Company expects to derive from the underlying asset following the end of the lease term, which is not guaranteed by the lessee or any third party, discounted using the rate implicit in the lease. In certain cases, the Company obtains residual value insurance from third parties and/or guarantees from the lessee to manage the risk associated with the residual value of the leased assets. The carrying amount of guaranteed residual value, which was included in Loans held-for-investment on the Consolidated Balance Sheet, was $31.6 million as of December 31, 2019.

The following table presents the components of the net investment in direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	December 31, 2019
Lease receivables	$	126,517
Unguaranteed residual assets	14,793
Net investment in direct financing and sales-type leases	$	141,310

The lease income for direct financing and sales-type leases was $5.9 million for the year ended December 31, 2019.

The following table presents future minimum lease payments that are expected to be received under the direct financing and sales-type leases as of December 31, 2019:

($ in thousands)	Direct Financing and Sales-Type Leases
2020	$	27,580
2021	25,548
2022	18,154
2023	11,960
2024	8,512
Thereafter	11,708
Total minimum lease payments	$	103,462
Less: imputed interest	(9,783		)
Present value of lease receivables	$	93,679

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Deposits (Scheduled Maturities of Time Deposits) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
DEPOSIT ACCOUNTS
2020	$ 9,653,276
2021	428,971
2022	59,324
2023	36,633
2024	7,024
Thereafter	29,080
Total time deposits	$ 10,214,308

XML

Derivatives (Net Gains (Losses) on Derivatives Designated as Hedges) (Details) - Derivative instruments designated as hedging instruments - Fair Value Hedging - Interest Expense - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Certificates of deposits
Derivative [Line Items]
Recognized on certificates of deposit	$ (2,536)	$ 278	$ 2,271
Interest rate contracts
Derivative [Line Items]
Recognized on interest rate swaps	$ 2,655	$ (93)	$ (2,734)

XML

Loans Receivable and Allowance for Credit Losses (Composition of Non-PCI and PCI Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	$ 34,778,539	$ 32,385,189
Allowance for loan losses	(358,287)	(311,322)
Loans held-for-investment, net	34,420,252	32,073,867
Commercial Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	25,914,252	24,326,631
Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	12,150,931	12,056,970
Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	10,278,448	9,260,199
Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	2,856,374	2,470,668
Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	628,499	538,794
Commercial Lending | Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	13,763,321	12,269,661
Consumer Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	8,864,287	8,058,558
Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	7,108,590	6,036,454
Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	1,472,783	1,690,834
Consumer Lending | Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	8,581,373	7,727,288
Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	282,914	331,270
Non-PCI loans
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	34,555,668	32,077,166
Allowance for loan losses	(358,287)	(311,300)
Loans held-for-investment, net	34,197,381	31,765,866
Deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts	(43,200)	(48,900)
Non-PCI loans | Commercial Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	25,777,039	24,124,659
Non-PCI loans | Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	12,149,121	12,054,818
Non-PCI loans | Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	10,165,247	9,097,165
Non-PCI loans | Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	2,834,212	2,433,924
Non-PCI loans | Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	628,459	538,752
Non-PCI loans | Commercial Lending | Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	13,627,918	12,069,841
Non-PCI loans | Consumer Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	8,778,629	7,952,507
Non-PCI loans | Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	7,028,979	5,939,258
Non-PCI loans | Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	1,466,736	1,681,979
Non-PCI loans | Consumer Lending | Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	8,495,715	7,621,237
Non-PCI loans | Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	282,914	331,270
PCI Loans
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	222,871	308,023
Allowance for loan losses	0	(22)
Loans held-for-investment, net	222,871	308,001
Discount related to ASC 310-30	14,300	22,200
PCI Loans | Commercial Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	137,213	201,972
PCI Loans | Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	1,810	2,152
PCI Loans | Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	113,201	163,034
PCI Loans | Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	22,162	36,744
PCI Loans | Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	40	42
PCI Loans | Commercial Lending | Total CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	135,403	199,820
PCI Loans | Consumer Lending
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	85,658	106,051
PCI Loans | Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	79,611	97,196
PCI Loans | Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	6,047	8,855
PCI Loans | Consumer Lending | Total residential mortgage
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	85,658	106,051
PCI Loans | Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans held-for-investment	$ 0	$ 0

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Derivatives (Derivatives Not Designated as Hedging Instruments - Credit Contracts) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative assets - Fair value	$ 330,316	$ 107,816
Derivative liabilities - Fair Value	256,528	118,305
Derivative instruments not designated as hedging instruments
Derivative [Line Items]
Notional amount	20,540,031	15,222,341
Derivative assets - Fair value	330,316	107,816
Derivative liabilities - Fair Value	251,744	111,828
Derivative instruments not designated as hedging instruments | Credit contracts
Derivative [Line Items]
Notional amount	210,678	119,320
Derivative assets - Fair value	2	1
Derivative liabilities - Fair Value	84	164
Credit contracts | Derivative instruments not designated as hedging instruments | Other Credit Derivatives | RPAs - protection sold
Derivative [Line Items]
Notional amount	199,964	108,606
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	84	164
Credit contracts | Derivative instruments not designated as hedging instruments | Other Credit Derivatives | RPAs - protection purchased
Derivative [Line Items]
Notional amount	10,714	10,714
Derivative assets - Fair value	2	1
Derivative liabilities - Fair Value	0	0
Credit contracts | Derivative instruments not designated as hedging instruments | Credit contracts
Derivative [Line Items]
Notional amount	210,678	119,320
Derivative assets - Fair value	2	1
Derivative liabilities - Fair Value	$ 84	$ 164

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Securities (Realized Gains and Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales available-for sale debt securities	$ 627,110	$ 364,270
Proceeds from sales of available-for sale securities			$ 832,844
Gross realized gains, available-for sale debt securities	3,930	2,535
Gross realized gains, available-for-sale debt securities			8,037
Related tax expense, available-for sale debt securities	$ 1,162	$ 749
Related tax expense, available-for-sale securities			$ 3,380

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Securities Purchased under Resale Agreements and Sold under Repurchase Agreements (Balance Sheet Offsetting) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Gross Amounts of Recognized Assets	$ 1,110,000	$ 1,435,000
Gross Amounts Offset on the Consolidated Balance Sheet	(250,000)	(400,000)
Net Amounts of Assets Presented on the Consolidated Balance Sheet	860,000	1,035,000
Gross Amounts Not Offset on the Consolidated Balance Sheet
Collateral Received	(856,058)	(1,025,066)
Net Amount	3,942	9,934
Liabilities
Gross Amounts of Recognized Liabilities	450,000	450,000
Gross Amounts Offset on the Consolidated Balance Sheet	(250,000)	(400,000)
Net Amounts of Liabilities Presented on the Consolidated Balance Sheet	200,000	50,000
Gross Amounts Not Offset on the Consolidated Balance Sheet
Collateral Pledged	(200,000)	(50,000)
Net Amount	$ 0	$ 0

XML

Derivatives (Narrative) (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) MMBTU Boe company	Dec. 31, 2018 USD ($) MMBTU Boe company
Derivative [Line Items]
Derivative liabilities - Fair Value	$ 256,528	$ 118,305
Derivative assets - Fair value	330,316	107,816
Credit-Risk-Related Contingent Features
Derivative [Line Items]
Derivative asset	14,400	2,800
Derivative liability	70,800	14,200
Associated posted collateral	56,400	9,400
Aggregate fair value of derivative instruments in net liability position	56,400	11,400
Derivative instruments designated as hedging instruments
Derivative [Line Items]
Notional amount	117,193	126,056
Derivative liabilities - Fair Value	4,784	6,477
Derivative assets - Fair value	0	0
Derivative instruments designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Notional amount	86,167	90,245
Derivative liabilities - Fair Value	1,586	611
Derivative assets - Fair value	0	0
Derivative instruments designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	31,026	35,811
Derivative liabilities - Fair Value	3,198	5,866
Derivative assets - Fair value	0	0
Derivative instruments not designated as hedging instruments
Derivative [Line Items]
Notional amount	20,540,031	15,222,341
Derivative liabilities - Fair Value	251,744	111,828
Derivative assets - Fair value	330,316	107,816
Derivative instruments not designated as hedging instruments | Foreign exchange contracts
Derivative [Line Items]
Notional amount	4,839,661	3,407,522
Derivative liabilities - Fair Value	47,024	19,329
Derivative assets - Fair value	54,637	21,624
Derivative instruments not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	15,489,692	11,695,499
Derivative liabilities - Fair Value	124,119	69,267
Derivative assets - Fair value	192,883	69,818
Derivative instruments not designated as hedging instruments | Credit contracts
Derivative [Line Items]
Notional amount	210,678	119,320
Derivative liabilities - Fair Value	84	164
Derivative assets - Fair value	$ 2	$ 1
Weighted average remaining maturity	2 years 2 months 12 days	6 years 7 months 6 days
Derivative instruments not designated as hedging instruments | Credit contracts | RPAs - protection sold
Derivative [Line Items]
Maximum exposure of RPAs with protection sold	$ 125	$ 125
Derivative instruments not designated as hedging instruments | Equity, Private Companies
Derivative [Line Items]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	18	18
Derivative instruments not designated as hedging instruments | Equity, Public Companies
Derivative [Line Items]
Number of companies that Issued the equity contracts (Issuers Portion Only) | company	3	4
Derivative instruments not designated as hedging instruments | Equity warrants
Derivative [Line Items]
Notional amount	$ 0	$ 0
Derivative liabilities - Fair Value	0	0
Derivative assets - Fair value	1,414	1,951
Derivative instruments not designated as hedging instruments | Commodity contracts
Derivative [Line Items]
Notional amount	0	0
Derivative liabilities - Fair Value	80,517	23,068
Derivative assets - Fair value	81,380	14,422
Fair Value, Measurements, Recurring
Derivative [Line Items]
Derivative liabilities - Fair Value	256,528	118,305
Derivative assets - Fair value	330,316	107,816
Fair Value, Measurements, Recurring | Foreign exchange contracts
Derivative [Line Items]
Derivative liabilities - Fair Value	48,610	19,940
Derivative assets - Fair value	54,637	21,624
Fair Value, Measurements, Recurring | Interest rate contracts
Derivative [Line Items]
Derivative liabilities - Fair Value	127,317	75,133
Derivative assets - Fair value	192,883	69,818
Fair Value, Measurements, Recurring | Credit contracts
Derivative [Line Items]
Derivative liabilities - Fair Value	84	164
Derivative assets - Fair value	2	1
Fair Value, Measurements, Recurring | Equity warrants
Derivative [Line Items]
Derivative assets - Fair value	1,414	1,951
Fair Value, Measurements, Recurring | Commodity contracts
Derivative [Line Items]
Derivative liabilities - Fair Value	80,517	23,068
Derivative assets - Fair value	81,380	14,422
Financial Counterparty | Derivative instruments not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	7,750,000	5,850,000
London Clearing House | Derivative instruments not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	2,530,000	1,660,000
Derivative liabilities - Fair Value	75,100	16,000
Derivative assets - Fair value	2,900	16,400
Chicago Mercantile Exchange (CME) | Derivative instruments not designated as hedging instruments | Commodity contracts
Derivative [Line Items]
Derivative liabilities - Fair Value		582
Derivative assets - Fair value	2,900	10,400
Derivative liability	1,500
Derivative assets (liabilities), at fair value	$ 986	$ 622
Chicago Mercantile Exchange (CME) | Derivative instruments not designated as hedging instruments | Commodity contracts | Oil
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	1,752	778
Chicago Mercantile Exchange (CME) | Derivative instruments not designated as hedging instruments | Commodity contracts | Natural Gas
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	6,075	6,290

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Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share)	$ 1.055	$ 0.86	$ 0.80

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Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Available-for-sale debt investment securities pledged as collateral at fair value	$ 479,432	$ 435,833
Allowance for loan losses	358,287	311,322
Loans held-for-sale pledged as collateral	22,431,092	20,590,035
Premises and equipment, accumulated depreciation	$ 116,790	$ 118,547
STOCKHOLDERS’ EQUITY
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	166,621,959	165,867,587
Treasury stock, shares (in shares)	20,996,574	20,906,224

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Subsequent Events (Details) - $ / shares			12 Months Ended
	Feb. 14, 2020	Jan. 23, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsequent events
Dividends declared per common share (in dollars per share)			$ 1.055	$ 0.86	$ 0.80
Subsequent Event
Subsequent events
Dividends paid per common share (in dollars per share)	$ 0.275
Dividends declared per common share (in dollars per share)		$ 0.275

XML

Regulatory Requirements and Matters (Tables)

12 Months Ended

Dec. 31, 2019

Banking and Thrift [Abstract]

Schedule of regulatory capital information

The following table presents the regulatory capital information of the Company and the Bank as of December 31, 2019 and 2018:

($ in thousands)	Basel III
	December 31, 2019								December 31, 2018
	Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement		Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement
	Amount		Ratio		Ratio		Ratio		Amount		Ratio		Ratio		Ratio
Total capital (to risk-weighted assets)
Company	$	5,064,037	14.4	%	10.50	%	10.0	%	$	4,438,730	13.7	%	9.88	%	10.0	%
East West Bank	$	4,886,237	13.9	%	10.50	%	10.0	%	$	4,268,616	13.1	%	9.88	%	10.0	%
Tier 1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	8.50	%	8.0	%	$	3,966,842	12.2	%	7.88	%	8.0	%
East West Bank	$	4,516,792	12.9	%	8.50	%	8.0	%	$	3,944,728	12.1	%	7.88	%	8.0	%
CET1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	7.00	%	6.5	%	$	3,966,842	12.2	%	6.38	%	6.5	%
East West Bank	$	4,516,792	12.9	%	7.00	%	6.5	%	$	3,944,728	12.1	%	6.38	%	6.5	%
Tier 1 leverage capital (to adjusted average assets)
Company (1)	$	4,546,592	10.3	%	4.0	%	N/A		$	3,966,842	9.9	%	4.0	%	N/A
East West Bank	$	4,516,792	10.3	%	4.0	%	5.0	%	$	3,944,728	9.8	%	4.0	%	5.0	%
Risk-weighted assets
Company	$	35,136,427	N/A		N/A		N/A		$	32,497,296	N/A		N/A		N/A
East West Bank	$	35,127,920	N/A		N/A		N/A		$	32,477,002	N/A		N/A		N/A
Adjusted quarterly average total assets (2)
Company	$	44,449,802	N/A		N/A		N/A		$	40,636,402	N/A		N/A		N/A
East West Bank	$	44,419,308	N/A		N/A		N/A		$	40,611,215	N/A		N/A		N/A

(1) The Tier 1 leverage capital well-capitalized requirement applies to the Bank only since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company.

(2) Reflects adjusted average total assets for the years ended December 31, 2019 and 2018.

(3) The CET1, Tier 1, and total capital minimum ratios include a fully phased-in capital conservation buffer of 2.5% and a transition capital conservation buffer of 1.875% for the years ended December 31, 2019 and 2018, respectively.

N/A — Not applicable.

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Summary of Significant Accounting Policies (Nature of Operations and Principles of Consolidation) (Details)	Dec. 31, 2019 location trust
Accounting Policies [Abstract]
Number of banking locations (more than) | location	125
Principles of Consolidation
Number of wholly owned subsidiaries that are statutory business trusts | trust	6

XML

Regulatory Requirements and Matters (Regulatory Capital Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Well Capitalized Requirement
Fully phased-in capital conservation buffer	2.50%
Transition capital conservation buffer, percent		1.875%
Company
Actual
Total capital (to risk-weighted assets), Amount	$ 5,064,037	$ 4,438,730
Tier I capital (to risk-weighted assets), Amount	4,546,592	3,966,842
Tier 1 Common Equity capital (to risk-weighted assets), Amount	4,546,592	3,966,842
Tier 1 leverage capital (to adjusted average assets), Amount	4,546,592	3,966,842
Risk-weighted assets	35,136,427	32,497,296
Adjusted quarterly average total assets	$ 44,449,802	$ 40,636,402
Total capital (to risk-weighted assets), Ratio (as a percent)	14.40%	13.70%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	12.90%	12.20%
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	12.90%	12.20%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	10.30%	9.90%
Minimum Capital Ratios
Total capital (to risk-weighted assets), Ratio (as a percent)	10.50%	9.88%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.50%	7.88%
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	7.00%	6.38%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	4.00%	4.00%
Well Capitalized Requirement
Total capital (to risk-weighted assets), Ratio (as a percent)	10.00%	10.00%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.00%	8.00%
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	6.50%	6.50%
East West Bank
Actual
Total capital (to risk-weighted assets), Amount	$ 4,886,237	$ 4,268,616
Tier I capital (to risk-weighted assets), Amount	4,516,792	3,944,728
Tier 1 Common Equity capital (to risk-weighted assets), Amount	4,516,792	3,944,728
Tier 1 leverage capital (to adjusted average assets), Amount	4,516,792	3,944,728
Risk-weighted assets	35,127,920	32,477,002
Adjusted quarterly average total assets	$ 44,419,308	$ 40,611,215
Total capital (to risk-weighted assets), Ratio (as a percent)	13.90%	13.10%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	12.90%	12.10%
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	12.90%	12.10%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	10.30%	9.80%
Minimum Capital Ratios
Total capital (to risk-weighted assets), Ratio (as a percent)	10.50%	9.88%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.50%	7.88%
Tier 1 Common Equity Capital (to risk-weighted assets), Ratio (as a percent)	7.00%	6.38%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	4.00%	4.00%
Well Capitalized Requirement
Total capital (to risk-weighted assets), Ratio (as a percent)	10.00%	10.00%
Tier I capital (to risk-weighted assets), Ratio (as a percent)	8.00%	8.00%
Tier 1 Common Equity capital (to risk-weighted assets), Ratio (as a percent)	6.50%	6.50%
Tier 1 leverage capital (to adjusted average assets), Ratio (as a percent)	5.00%	5.00%

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Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue from contracts with customers and other noninterest income

The following tables present revenue from contracts with customers within the scope of ASC 606, Revenue from Contracts with Customers, and other noninterest income, segregated by operating segments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	21,327	$	13,564	$	49	$	34,940
Card income	3,032		676		—		3,708
Wealth management fees	15,841		827		—		16,668
Total revenue from contracts with customers	40,200		15,067		49		55,316
Other sources of noninterest income (1)	17,720		119,555		16,786		154,061
Total noninterest income	$	57,920	$	134,622	$	16,835	$	209,377

($ in thousands)	Year Ended December 31, 2018
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	22,474	$	12,326	$	423	$	35,223
Card income	3,196		757		—		3,953
Wealth management fees	13,357		428		—		13,785
Total revenue from contracts with customers	39,027		13,511		423		52,961
Other sources of noninterest income (1)	46,580		96,776		14,592		157,948
Total noninterest income	$	85,607	$	110,287	$	15,015	$	210,909

($ in thousands)	Year Ended December 31, 2017
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	24,109	$	11,476	$	464	$	36,049
Card income	3,465		785		—		4,250
Wealth management fees	12,218		1,756		—		13,974
Total revenue from contracts with customers	39,792		14,017		464		54,273
Other sources of noninterest income (1)	14,659		96,072		92,744		203,475
Total noninterest income	$	54,451	$	110,089	$	93,208	$	257,748

(1)

Primarily represents revenue from contracts with customers that are out of the scope of ASC 606, Revenue from Contracts with Customers.

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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill by reporting unit

The following table presents changes in the carrying amount of goodwill by reporting unit during years ended December 31, 2019 and 2018:

($ in thousands)	Consumer and Business Banking			Commercial Banking		Total
Balance, January 1, 2018	$	357,207		$	112,226	$	469,433
Disposition of the DCB branches	(3,886		)	—		(3,886		)
Balance, December 31, 2018	$	353,321		$	112,226	$	465,547
Balance, January 1, 2019	$	353,321		$	112,226	$	465,547
Acquisition of Enstream Capital Markets, LLC	—			150		150
Balance, December 31, 2019	$	353,321		$	112,376	$	465,697

Schedule of core deposit intangible assets and accumulated amortization

The following table presents the gross carrying amount of core deposit intangible assets and accumulated amortization as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019			2018
Gross balance (1)	$	86,099		$	86,099
Accumulated amortization (1)	(76,088		)	(71,570		)
Net carrying balance (1)	$	10,011		$	14,529

(1) Excludes fully amortized core deposit intangible assets.

Schedule of estimated future amortization expense of the core deposit intangibles

The following table presents the estimated future amortization expense of core deposit intangibles as of December 31, 2019:

($ in thousands)	Amount
2020	$	3,634
2021	2,749
2022	1,865
2023	1,199
2024	553
Thereafter	11
Total	$	10,011

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Stockholders’ Equity and Earnings Per Share (Weighted Average Shares of Anti-dilutive Restricted Stock Units) (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares of anti-dilutive restricted stock units (in shares)	15	10	14

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Schedule of expected SERP payments

The following table presents a summary of expected SERP payments to be paid for the next five years and thereafter as of December 31, 2019:

Years Ending December 31,	Amount ($ in thousands)
2020	$	339
2021	349
2022	359
2023	370
2024	381
Thereafter	7,103
Total	$	8,901

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Parent Company Condensed Financial Statements (Condensed Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents due from subsidiary bank	$ 3,261,149	$ 3,001,377
Goodwill	465,697	465,547	$ 469,433
Other assets	917,095	743,686
TOTAL	44,196,096	41,042,356	37,121,563
LIABILITIES
Long-term debt		146,835
Total liabilities	39,178,479	36,618,382
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167	166
Additional paid-in capital	1,826,345	1,789,811
Retained earnings	3,689,377	3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864)	(467,961)
AOCI, net of tax	(18,408)	(58,174)
Total stockholders’ equity	5,017,617	4,423,974	$ 3,841,951	$ 3,427,741
TOTAL	44,196,096	41,042,356
Parent Company
ASSETS
Cash and cash equivalents due from subsidiary bank	166,131	149,411
Investments in tax credit and other investments, net	11,637	23,259
Goodwill	150	0
Other assets	3,941	6,487
TOTAL	5,175,155	4,584,679
LIABILITIES
Long-term debt	147,101	146,835
Other liabilities	10,437	13,870
Total liabilities	157,538	160,705
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167	166
Additional paid-in capital	1,826,345	1,789,811
Retained earnings	3,689,377	3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864)	(467,961)
AOCI, net of tax	(18,408)	(58,174)
Total stockholders’ equity	5,017,617	4,423,974
TOTAL	5,175,155	4,584,679
Parent Company | Bank
Balance sheets
Investments in Subsidiaries	4,987,666	4,401,860
Parent Company | Nonbank
Balance sheets
Investments in Subsidiaries	$ 5,630	$ 3,662

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Loans Receivable and Allowance for Credit Losses (Aging Analysis on Non-PCI Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Nonaccrual and Past Due Loans
Total loans	$ 34,778,539	$ 32,385,189
Commercial Lending
Nonaccrual and Past Due Loans
Total loans	25,914,252	24,326,631
Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total loans	12,150,931	12,056,970
Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total loans	10,278,448	9,260,199
Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total loans	2,856,374	2,470,668
Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total loans	628,499	538,794
Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total loans	13,763,321	12,269,661
Consumer Lending
Nonaccrual and Past Due Loans
Total loans	8,864,287	8,058,558
Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total loans	7,108,590	6,036,454
Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total loans	1,472,783	1,690,834
Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total loans	8,581,373	7,727,288
Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total loans	282,914	331,270
Non-PCI loans
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	101,283	79,230
Total Nonaccrual Loans	120,219	85,693
Current Accruing Loans	34,334,166	31,912,243
Total loans	34,555,668	32,077,166
Non-PCI loans | Commercial Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	73,691	52,323
Total Nonaccrual Loans	92,095	69,318
Current Accruing Loans	25,611,253	24,003,018
Total loans	25,777,039	24,124,659
Non-PCI loans | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	48,155	40,202
Total Nonaccrual Loans	74,835	43,840
Current Accruing Loans	12,026,131	11,970,776
Total loans	12,149,121	12,054,818
Non-PCI loans | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	24,807	7,740
Total Nonaccrual Loans	16,441	24,218
Current Accruing Loans	10,123,999	9,065,207
Total loans	10,165,247	9,097,165
Non-PCI loans | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	729	4,174
Total Nonaccrual Loans	819	1,260
Current Accruing Loans	2,832,664	2,428,490
Total loans	2,834,212	2,433,924
Non-PCI loans | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	0	207
Total Nonaccrual Loans	0	0
Current Accruing Loans	628,459	538,545
Total loans	628,459	538,752
Non-PCI loans | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	25,536	12,121
Total Nonaccrual Loans	17,260	25,478
Current Accruing Loans	13,585,122	12,032,242
Total loans	13,627,918	12,069,841
Non-PCI loans | Consumer Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	27,592	26,907
Total Nonaccrual Loans	28,124	16,375
Current Accruing Loans	8,722,913	7,909,225
Total loans	8,778,629	7,952,507
Non-PCI loans | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	20,517	22,495
Total Nonaccrual Loans	14,865	5,259
Current Accruing Loans	6,993,597	5,911,504
Total loans	7,028,979	5,939,258
Non-PCI loans | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	7,064	4,389
Total Nonaccrual Loans	10,742	8,614
Current Accruing Loans	1,448,930	1,668,976
Total loans	1,466,736	1,681,979
Non-PCI loans | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	27,581	26,884
Total Nonaccrual Loans	25,607	13,873
Current Accruing Loans	8,442,527	7,580,480
Total loans	8,495,715	7,621,237
Non-PCI loans | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	11	23
Total Nonaccrual Loans	2,517	2,502
Current Accruing Loans	280,386	328,745
Total loans	282,914	331,270
Non-PCI loans | Accruing Loans 30-59 Days Past Due
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	73,871	50,382
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	54,149	33,153
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	31,121	21,032
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	22,830	7,740
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	198	4,174
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	0	207
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	23,028	12,121
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	19,722	17,229
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	15,443	14,645
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	4,273	2,573
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	19,716	17,218
Non-PCI loans | Accruing Loans 30-59 Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	6	11
Non-PCI loans | Accruing Loans 60-89 Days Past Due
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	27,412	28,848
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	19,542	19,170
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	17,034	19,170
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	1,977	0
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	531	0
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	0	0
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	2,508	0
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	7,870	9,678
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	5,074	7,850
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	2,791	1,816
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	7,865	9,666
Non-PCI loans | Accruing Loans 60-89 Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Accruing Past Due Loans	5	12
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	35,570	23,800
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	32,158	21,868
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	31,084	17,097
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	540	3,704
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	534	1,067
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	0	0
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	1,074	4,771
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	3,412	1,932
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	1,964	509
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	1,448	1,423
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	3,412	1,932
Non-PCI loans | Nonaccrual Loans Less Than 90 Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	0	0
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	84,649	61,893
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	59,937	47,450
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending | C&I
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	43,751	26,743
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending | CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	15,901	20,514
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending | Residential loan | Multifamily
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	285	193
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending | Construction and land
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	0	0
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Commercial Lending | Total CRE
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	16,186	20,707
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Consumer Lending
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	24,712	14,443
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Consumer Lending | Residential loan | Single-family
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	12,901	4,750
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Consumer Lending | HELOCs
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	9,294	7,191
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Consumer Lending | Total residential mortgage
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	22,195	11,941
Non-PCI loans | Nonaccrual Loans 90 or More Days Past Due | Consumer Lending | Other consumer
Nonaccrual and Past Due Loans
Total Nonaccrual Loans	$ 2,517	$ 2,502

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Dispositions (Dispositions) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 17, 2018 USD ($) banking_branch
Disposition [Line Items]
Net gain on sale of business		$ 0	$ 31,470	$ 3,807
East West Insurance Services, Inc.
Disposition [Line Items]
Proceeds from sale of business	$ 4,300
Net gain on sale of business	$ 3,800
Desert Community Bank
Disposition [Line Items]
Net gain on sale of business			31,500
Branch liabilities sold					$ 613,700
Net cash payment in sale of branch			$ 499,900
Desert Community Bank | CALIFORNIA
Disposition [Line Items]
Number of branches sold | banking_branch					8
Loans | Desert Community Bank
Disposition [Line Items]
Branch assets sold					$ 59,100
Cash and cash equivalents | Desert Community Bank
Disposition [Line Items]
Branch assets sold					9,000
Premises and equipment | Desert Community Bank
Disposition [Line Items]
Branch assets sold					$ 7,900

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Fair Value Measurement and Fair Value of Financial Instruments (Carrying Amounts of Assets That Were Still Held and Had Fair Value Changes Measured on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	$ 49,679	$ 32,858
Non-PCI impaired loans | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	48,307	30,307
Non-PCI impaired loans | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	47,554	26,873
Non-PCI impaired loans | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	753	3,434
Non-PCI impaired loans | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	1,372	2,551
Non-PCI impaired loans | Consumer Lending | Residential loan | Single-family
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans		2,551
Non-PCI impaired loans | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	1,372
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	125
Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	3,076
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Consumer Lending | Residential loan | Single-family
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-PCI impaired loans | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0	0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Consumer Lending | Residential loan | Single-family
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans		0
Significant Other Observable Inputs (Level 2) | Non-PCI impaired loans | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	0
Significant Other Observable Inputs (Level 2) | OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0
Significant Other Observable Inputs (Level 2) | Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	49,679	32,858
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	48,307	30,307
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	47,554	26,873
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	753	3,434
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	1,372	2,551
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Consumer Lending | Residential loan | Single-family
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans		$ 2,551
Significant Unobservable Inputs (Level 3) | Non-PCI impaired loans | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Non-PCI Impaired loans	1,372
Significant Unobservable Inputs (Level 3) | OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	125
Significant Unobservable Inputs (Level 3) | Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	$ 3,076

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Loans Receivable and Allowance for Credit Losses (Loans Modified as TDRs that Subsequently Defaulted) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Additional funds committed to lend to borrowers whose terms have been modified	$ 2,200	$ 3,900
Non-PCI loans | Commercial Lending | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	3	4	3
Recorded Investment	$ 13,112	$ 1,890	$ 8,659
Non-PCI loans | Commercial Lending | CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1	0
Recorded Investment	$ 0	$ 186	$ 0
Non-PCI loans | Commercial Lending | Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1	0
Recorded Investment	$ 0	$ 186	$ 0
Non-PCI loans | Consumer Lending | HELOCs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1	0
Recorded Investment	$ 0	$ 150	$ 0
Non-PCI loans | Consumer Lending | Total residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	0	1	0
Recorded Investment	$ 0	$ 150	$ 0

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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Estimated Unfunded Commitments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investments in Tax Credit and Other Investments, Net [Line Items]
Unrealized gain (loss) recognized on marketable equity securities held	$ 789	$ (547)
Unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments
2020	121,875
2021	32,039
2022	13,459
2023	15,753
2024	8,145
Thereafter	2,538
Total	193,809
Investments in tax credit and other investments, net
Investments in Tax Credit and Other Investments, Net [Line Items]
Marketable equity securities	$ 31,700	$ 31,200

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Loans Receivable and Allowance for Credit Losses (Loans Held-for-Sale Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
LOANS HELD-FOR-SALE
Net gains on sales of loans	$ 4,035	$ 6,590	$ 8,870
Loans held-for-sale	434	275
Single Family Residential with recourse | Residential loan
LOANS HELD-FOR-SALE
Loans held-for-sale	$ 434	$ 275

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Regulatory Requirements and Matters

12 Months Ended

Dec. 31, 2019

Banking and Thrift [Abstract]

Regulatory Requirements and Matters

Regulatory Requirements and Matters

Capital Adequacy — The Company and the Bank are subject to regulatory capital adequacy requirements administered by the federal banking agencies. The Bank is a member bank of the Federal Reserve System and is primarily regulated by the Federal Reserve. The Company and the Bank are required to comply with the Basel III Capital Rules adopted by the federal banking agencies. Both the Company and the Bank are standardized approaches institutions under Basel III Capital Rules. The Basel III Capital Rule requires that banking organizations maintain a minimum Common Equity Tier 1 (“CET1”) capital ratio of 4.5%, a Tier 1 capital ratio of 6.0%, and a total capital ratio of 8.0% to be considered adequately capitalized. Failure to meet minimum capital requirements can result in certain mandatory actions and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s Consolidated Financial Statements. The Basel III Capital Rules also requires the Company and the Bank to maintain a capital conservation buffer of 2.5% above the minimum capital ratios in order to absorb losses during periods of economic stress, effective January 1, 2019. Banking institutions with a ratio of CET1 to risk-weighted assets above the minimum but below the capital conservation buffer will face constraints on dividends, equity repurchases and compensation based on the amount of the shortfall.

The FDIC Improvement Act of 1991 requires that the federal regulatory agencies adopt regulations defining capital categories for banks: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. Consistent with the Basel III Capital Rules, the capital categories were augmented by including the CET1 capital measure, and revised risk-based capital measures to reflect the rule changes to the minimum risk-based capital ratios.

As of December 31, 2019 and 2018, the Company and the Bank were both categorized as well capitalized based on applicable U.S. regulatory capital ratio requirements in accordance with Basel III standardized approaches, as set forth in the table below. The Company believes that no changes in conditions or events have occurred since December 31, 2019, which would result in changes that would cause the Company or the Bank to fall below the well capitalized level. The following table presents the regulatory capital information of the Company and the Bank as of December 31, 2019 and 2018:

($ in thousands)	Basel III
	December 31, 2019								December 31, 2018
	Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement		Actual				Minimum Capital    Ratios (3)		Well Capitalized Requirement
	Amount		Ratio		Ratio		Ratio		Amount		Ratio		Ratio		Ratio
Total capital (to risk-weighted assets)
Company	$	5,064,037	14.4	%	10.50	%	10.0	%	$	4,438,730	13.7	%	9.88	%	10.0	%
East West Bank	$	4,886,237	13.9	%	10.50	%	10.0	%	$	4,268,616	13.1	%	9.88	%	10.0	%
Tier 1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	8.50	%	8.0	%	$	3,966,842	12.2	%	7.88	%	8.0	%
East West Bank	$	4,516,792	12.9	%	8.50	%	8.0	%	$	3,944,728	12.1	%	7.88	%	8.0	%
CET1 capital (to risk-weighted assets)
Company	$	4,546,592	12.9	%	7.00	%	6.5	%	$	3,966,842	12.2	%	6.38	%	6.5	%
East West Bank	$	4,516,792	12.9	%	7.00	%	6.5	%	$	3,944,728	12.1	%	6.38	%	6.5	%
Tier 1 leverage capital (to adjusted average assets)
Company (1)	$	4,546,592	10.3	%	4.0	%	N/A		$	3,966,842	9.9	%	4.0	%	N/A
East West Bank	$	4,516,792	10.3	%	4.0	%	5.0	%	$	3,944,728	9.8	%	4.0	%	5.0	%
Risk-weighted assets
Company	$	35,136,427	N/A		N/A		N/A		$	32,497,296	N/A		N/A		N/A
East West Bank	$	35,127,920	N/A		N/A		N/A		$	32,477,002	N/A		N/A		N/A
Adjusted quarterly average total assets (2)
Company	$	44,449,802	N/A		N/A		N/A		$	40,636,402	N/A		N/A		N/A
East West Bank	$	44,419,308	N/A		N/A		N/A		$	40,611,215	N/A		N/A		N/A

(1) The Tier 1 leverage capital well-capitalized requirement applies to the Bank only since there is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company.

(2) Reflects adjusted average total assets for the years ended December 31, 2019 and 2018.

(3) The CET1, Tier 1, and total capital minimum ratios include a fully phased-in capital conservation buffer of 2.5% and a transition capital conservation buffer of 1.875% for the years ended December 31, 2019 and 2018, respectively.

N/A — Not applicable.

Reserve Requirement — The Bank is required to maintain a percentage of its deposits as reserves at the FRB. The daily average reserve requirement was approximately $829.0 million and $707.3 million as of December 31, 2019 and 2018, respectively.

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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Activity related to unrecognized tax benefits
Beginning balance	$ 4,378,000	$ 10,419,000	$ 10,419,000
Additions for tax positions related to prior years	30,103,000	0	0
Deductions for tax positions related to prior years	(34,481,000)	(3,969,000)	0
Settlements with taxing authorities	0	(2,072,000)	0
Ending balance	0	4,378,000	10,419,000
(Reversal) charge of Interest and penalties related to income taxes	(6,300,000)	(2,000,000.0)	$ 450,000
Total interest and penalties accrued	$ 0	$ 6,300,000

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Federal Home Loan Bank Advances and Long-Term Debt

12 Months Ended

Dec. 31, 2019

FEDERAL HOME LOAN BANK ADVANCES AND LONG-TERM DEBT

Federal Home Loan Bank Advances and Long-Term Debt

Federal Home Loan Bank Advances and Long-Term Debt

FHLB Advances

FHLB advances to the Bank totaled $745.9 million and $326.2 million as of December 31, 2019 and 2018, respectively. The FHLB advances have both fixed and floating interest rates that reset monthly or quarterly based on LIBOR. The weighted-average interest rate was 2.19% and 2.87% as of December 31, 2019 and 2018, respectively. The interest rates ranged from 1.82% to 3.13% and 1.79% to 2.98% for the years ended December 31, 2019 and 2018, respectively. As of December 31, 2019, FHLB advances that will mature in the next five years include $100.0 million in 2020, $400.0 million in 2021 and $245.9 million in 2022.

The Bank’s available borrowing capacity from FHLB advances totaled $6.83 billion and $6.11 billion as of December 31, 2019 and 2018, respectively. The Bank’s available borrowing capacity from the FHLB is derived from its portfolio of loans that are pledged to the FHLB reduced by its outstanding FHLB advances. As of December 31, 2019 and 2018, all advances were secured by real estate loans.

Long-Term Debt — Junior Subordinated Debt

As of December 31, 2019, East West has six statutory business trusts for the purpose of issuing junior subordinated debt to third party investors. The junior subordinated debt was issued in connection with the East West’s various pooled trust preferred securities offerings. The Trusts issued both fixed and variable rate capital securities, representing undivided preferred beneficial interests in the assets of the Trusts, to third party investors. East West is the owner of all the beneficial interests represented by the common securities of the Trusts. The junior subordinated debt is recorded as a component of long-term debt and includes the value of the common stock issued by six of East West’s wholly-owned subsidiaries in conjunction with these transactions. The common stock is recorded in Other assets on the Consolidated Balance Sheet for the amount issued in connection with these junior subordinated debt issuances.

The following table presents the outstanding junior subordinated debt issued by each trust as of December 31, 2019 and 2018:

Issuer	Stated Maturity (1)	Stated Interest Rate	Current Rate	December 31, 2019				December 31, 2018
				Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts		Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts
($ in thousands)
East West Capital Trust V	November 2034	3-month LIBOR + 1.80%	3.71%	$	464	$	15,000	$	464	$	15,000
East West Capital Trust VI	September 2035	3-month LIBOR + 1.50%	3.39%	619		20,000		619		20,000
East West Capital Trust VII	June 2036	3-month LIBOR + 1.35%	3.24%	928		30,000		928		30,000
East West Capital Trust VIII	June 2037	3-month LIBOR + 1.40%	3.29%	619		18,000		619		18,000
East West Capital Trust IX	September 2037	3-month LIBOR + 1.90%	3.79%	928		30,000		928		30,000
MCBI Statutory Trust I	December 2035	3-month LIBOR + 1.55%	3.44%	1,083		35,000		1,083		35,000
Total				$	4,641	$	148,000	$	4,641	$	148,000

(1) All the above debt instruments mature more than five years after December 31, 2019 and are subject to call options where early redemption requires appropriate notice.

The proceeds from these issuances represent liabilities of East West to the Trusts and are reported on the Consolidated Balance Sheet as a component of Long-term debt. As of December 31, 2019 and 2018, the Company had outstanding junior subordinated debt of $147.1 million and $146.8 million, respectively. Interest payments on these securities are made quarterly and are deductible for tax purposes.

Term Loan

In 2013, East West entered into a $100.0 million three-year term loan agreement. The terms of the agreement were modified in 2015 to extend the term loan maturity from July 1, 2016 to December 31, 2018, where principal repayments of $5.0 million were due quarterly. The term loan bears interest at the rate of the three-month LIBOR plus 150 basis points and the weighted-average interest rate was 3.60% for the year ended December 31, 2018. As of both December 31, 2019 and 2018, the term loan had no outstanding balances as East West had made all scheduled principal repayments on the term loan in the fourth quarter of 2018.

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Federal Home Loan Bank Advances and Long-Term Debt (Junior Subordinated Debt) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) trust	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Number of wholly owned subsidiaries that are statutory business trusts | trust	6
Long-term debt		$ 146,835
Junior subordinated debt
Debt Instrument [Line Items]
Number of statutory business trusts formed for the purpose of issuing junior subordinated debt to third party investors | trust	6
Aggregate Principal Amount of Trust Securities	$ 4,641	4,641
Aggregate Principal Amount of the Junior Subordinated Debts	148,000	148,000
Long-term debt	$ 147,100	146,800
East West Capital Trust V | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.80%
Current Rate	3.71%
Aggregate Principal Amount of Trust Securities	$ 464	464
Aggregate Principal Amount of the Junior Subordinated Debts	$ 15,000	15,000
East West Capital Trust VI | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.50%
Current Rate	3.39%
Aggregate Principal Amount of Trust Securities	$ 619	619
Aggregate Principal Amount of the Junior Subordinated Debts	$ 20,000	20,000
East West Capital Trust VII | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.35%
Current Rate	3.24%
Aggregate Principal Amount of Trust Securities	$ 928	928
Aggregate Principal Amount of the Junior Subordinated Debts	$ 30,000	30,000
East West Capital Trust VIII | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.40%
Current Rate	3.29%
Aggregate Principal Amount of Trust Securities	$ 619	619
Aggregate Principal Amount of the Junior Subordinated Debts	$ 18,000	18,000
East West Capital Trust IX | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.90%
Current Rate	3.79%
Aggregate Principal Amount of Trust Securities	$ 928	928
Aggregate Principal Amount of the Junior Subordinated Debts	$ 30,000	30,000
MCBI Statutory Trust I | Junior subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	3-month Libor +
Stated Interest Rate, basis spread (as a percent)	1.55%
Current Rate	3.44%
Aggregate Principal Amount of Trust Securities	$ 1,083	1,083
Aggregate Principal Amount of the Junior Subordinated Debts	$ 35,000	$ 35,000

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Income Taxes (Narrative) (Details) $ in Thousands			12 Months Ended			15 Months Ended	60 Months Ended
		Jan. 01, 2018 USD ($)	Dec. 31, 2019 USD ($) generator	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) fund
Income Tax Contingency [Line Items]
Income tax expense related to impact of the Tax Act				$ 985	$ 41,700	$ 42,700
Remeasurements of certain deferred tax assets and liabilities, net					33,100
Remeasurements of tax credits and other tax benefits related to qualified affordable housing partnerships					$ 7,900
Decrease in tax credits recognized from investments			$ 14,700
Increase in effective tax rate (as a percent)			6.10%
Effective tax rate (as a percent)			20.10%	14.00%	31.20%
Valuation allowance			$ 21	$ 128		128	$ 128
Deferred tax assets, net			$ 106,487	$ 117,640		$ 117,640	$ 117,640
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[1]	$ 0
DC Solar Tax Credit Investments
Income Tax Contingency [Line Items]
Number of tax credit funds | fund							4
Claimed investment tax credits							$ 53,900
Deferred tax liability reduction							5,700
Net impact to Consolidated Financial Statements							$ 48,200
Mobile service generator | generator			0
Amount reversed from previously claimed tax credits			$ 33,600
Amount reversed from deferred tax liability			3,500
Additional income tax expense			$ 30,100
Accounting Standards Update 2018-02
Income Tax Contingency [Line Items]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		6,656
Retained Earnings
Income Tax Contingency [Line Items]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[1]	6,656
Retained Earnings | Accounting Standards Update 2018-02
Income Tax Contingency [Line Items]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		6,656
AOCI, net of Tax
Income Tax Contingency [Line Items]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[1]	(6,656)
AOCI, net of Tax | Accounting Standards Update 2018-02
Income Tax Contingency [Line Items]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		$ (6,656)

[1] Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements for additional information.

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Stock Compensation Plans

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Stock Compensation Plans

Stock Compensation Plans

Pursuant to the Company’s 2016 Stock Incentive Plan, as amended, the Company may issue stocks, stock options, restricted stock, RSUs, stock purchase warrants, stock appreciation rights, phantom stock and dividend equivalents to eligible employees, non-employee directors, consultants, and other service providers of the Company and its subsidiaries. There were no outstanding stock awards other than RSUs as of December 31, 2019, 2018 and 2017. An aggregate of 14.0 million shares of common stock were authorized under the 2016 Stock Incentive Plan, and the total number of shares available for grant was approximately 3.5 million as of December 31, 2019.

The following table presents a summary of the total share-based compensation expense and the related net tax benefits associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Stock compensation costs	$	30,761	$	30,937	$	24,657
Related net tax benefits for stock compensation plans	$	4,792	$	5,089	$	4,775

Restricted Stock Units — RSUs are granted under the Company’s long-term incentive plan at no cost to the recipient. RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. RSUs are authorized to settle predominantly in shares of the Company’s common stock. Certain RSUs will be settled in cash. RSUs entitle the recipient to receive cash dividend equivalents to any dividends paid on the underlying common stock during the period the RSUs are outstanding. RSU dividends are accrued during the vesting period and are paid at the time of vesting. While a portion of RSUs are time-vesting awards, others vest subject to the attainment of specified performance goals referred to as “performance-based RSUs.” Substantially all RSUs are subject to forfeiture until vested unless otherwise specified in the employment terms.

Performance-based RSUs are granted at the target amount of awards. Based on the Company’s attainment of specified performance goals and consideration of market conditions, the number of shares that vest can be adjusted to a minimum of zero and to a maximum of 200% of the target. The amount of performance-based RSUs that are eligible to vest is determined at the end of each performance period and is then added together as the total number of performance shares to vest. Performance-based RSUs cliff vest three years from the date of each grant.

Compensation costs for the time-based awards that will be settled in shares of the Company’s common stock are based on the quoted market price of the Company’s common stock at the grant date. Compensation costs for certain time-based awards that will be settled in cash are adjusted to fair value based on changes in the share price of the Company’s common stock up to the settlement date. Compensation costs associated with performance-based RSUs are based on grant date fair value which considers both market and performance conditions, and is subject to subsequent adjustments based on the changes in the Company’s projected outcome of the performance criteria. Compensation costs of both time-based and performance-based awards are estimated based on awards ultimately expected to vest and recognized on a straight-line basis from the grant date until the vesting date of each grant.

The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2019. The number of outstanding performance-based RSUs stated below assumes the associated performance targets will be met at the target level.

	Time-Based RSUs				Performance-Based RSUs
	Shares		Weighted- Average Grant Date Fair Value		Shares		Weighted- Average Grant Date Fair Value
Outstanding, January 1, 2019	1,121,391		$	51.22	411,290		$	49.93
Granted	500,145		52.46		134,600		54.64
Vested	(387,273	)	31.98		(159,407	)	29.18
Forfeited	(94,395	)	57.48		—		—
Outstanding, December 31, 2019	1,139,868		$	57.78	386,483		$	60.13

The following table presents a summary of the activities for the Company’s time-based RSUs that will be settled in cash for the year ended December 31, 2019:

	Shares
Outstanding, January 1, 2019	—
Granted	12,145
Vested	—
Forfeited	(507	)
Outstanding, December 31, 2019	11,638

The weighted-average grant date fair value of the time-based awards granted during the years ended December 31, 2019, 2018 and 2017 was $52.46, $66.86 and $55.28, respectively. The weighted-average grant date fair value of the performance-based awards granted during the years ended December 31, 2019, 2018 and 2017 was $54.64, $70.13 and $56.59, respectively. The total fair value of time-based awards that vested during the years ended December 31, 2019, 2018 and 2017 was $20.7 million, $23.1 million and $17.2 million, respectively. The total fair value of performance-based awards that vested during the years ended December 31, 2019, 2018 and 2017 was $14.5 million, $16.2 million and $13.0 million, respectively.

As of December 31, 2019, there were $23.3 million and $13.9 million of total unrecognized compensation costs related to unvested time-based and performance-based RSUs, respectively. These costs are expected to be recognized over a weighted-average period of 1.72 years and 1.81 years, respectively.

Stock Purchase Plan — The 1998 Employee Stock Purchase Plan (the “Purchase Plan”) provides eligible employees of the Company the right to purchase shares of its common stock at a discount. Employees could purchase shares at 90% of the fair market price subject to an annual purchase limitation of $22,500 per employee. As of December 31, 2019, the Purchase Plan qualifies as a non-compensatory plan under Section 423 of the Internal Revenue Code and, accordingly, no compensation expense has been recognized. 2,000,000 shares of the Company’s common stock have been made AFS under the Purchase Plan. During the years ended December 31, 2019 and 2018, 81,221 shares totaling $3.4 million and 51,541 shares totaling $2.8 million, respectively, have been sold to employees under the Purchase Plan. As of December 31, 2019, there were 393,925 shares available under the Purchase Plan.

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Securities Purchased under Resale Agreements and Sold under Repurchase Agreements

12 Months Ended

Dec. 31, 2019

RESALE AND REPURCHASE AGREEMENTS

Securities Purchased under Resale Agreements and Sold under Repurchase Agreements

Securities Purchased under Resale Agreements and Sold under Repurchase Agreements

Gross resale agreements were $1.11 billion and $1.44 billion as of December 31, 2019 and 2018, respectively. The weighted-average yields were 2.65%, 2.63% and 2.19% for the years ended December 31, 2019, 2018 and 2017, respectively.

As of December 31, 2019, the collateral for the repurchase agreements was comprised of U.S. Treasury securities, and U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities. Gross repurchase agreements were $450.0 million as of both December 31, 2019 and 2018. The weighted-average interest rates were 4.74%, 4.46% and 3.48% for the years ended December 31, 2019, 2018 and 2017, respectively. As of December 31, 2019, $150.0 million will mature in 2022 and $300.0 million will mature in 2023.

Balance Sheet Offsetting

The Company’s resale and repurchase agreements are transacted under legally enforceable master repurchase agreements that provide the Company, in the event of default by the counterparty, the right to liquidate securities held and to offset receivables and payables with the same counterparty. The Company nets resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Collateral received includes securities that are not recognized on the Consolidated Balance Sheet. Collateral pledged consists of securities that are not netted on the Consolidated Balance Sheet against the related collateralized liability. Collateral received or pledged in resale and repurchase agreements with other financial institutions may also be sold or re-pledged by the secured party, but is usually delivered to and held by the third-party trustees. The collateral amounts received/pledged are limited for presentation purposes to the related recognized asset/liability balance for each counterparty, and accordingly, do not include excess collateral received/pledged.

The following tables present the resale and repurchase agreements included on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,110,000	$	(250,000	)	$	860,000	$	(856,058	)	(1)	$	3,942
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Pledged
Repurchase agreements	$	450,000	$	(250,000	)	$	200,000	$	(200,000	)	(2)	$	—

($ in thousands)	December 31, 2018
Assets	Gross Amounts of Recognized Assets		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Assets Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral Received
Resale agreements	$	1,435,000	$	(400,000	)	$	1,035,000	$	(1,025,066	)	(1)	$	9,934
Liabilities	Gross Amounts of Recognized Liabilities		Gross Amounts Offset on the Consolidated Balance Sheet			Net Amounts of Liabilities Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet				Net Amount
								Collateral  Pledged
Repurchase agreements	$	450,000	$	(400,000	)	$	50,000	$	(50,000	)	(2)	$	—

(1) Represents the fair value of securities the Company has received under resale agreements, limited for table presentation purposes to the amount of the recognized asset due from each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

(2) Represents the fair value of securities the Company has pledged under repurchase agreements, limited for table presentation purposes to the amount of the recognized liability due to each counterparty. The application of collateral cannot reduce the net position below zero. Therefore, excess collateral, if any, is not reflected above.

In addition to the amounts included in the tables above, the Company also has balance sheet netting related to derivatives. Refer to Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

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Leases (Schedule of Lease Costs) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 34,850
Finance lease cost:
Amortization of right-of-use assets	807
Interest on lease liabilities	161
Variable lease cost	120
Sublease income	(81)
Net lease cost	$ 35,857

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Leases (Maturity Analysis of Direct Financing and Sales-Type Leases) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Direct Financing and Sales-Type Leases
2020	$ 27,580
2021	25,548
2022	18,154
2023	11,960
2024	8,512
Thereafter	11,708
Total minimum lease payments	103,462
Less: imputed interest	(9,783)
Present value of lease receivables	$ 93,679

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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities

12 Months Ended

Dec. 31, 2019

Investments in Qualified Affordable Housing Partnerships, Net [Abstract]

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities

Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities

The Community Reinvestment Act (“CRA”) encourages banks to meet the credit needs of their communities for housing and other purposes, particularly in low or moderate income neighborhoods. The Company invests in certain affordable housing projects in the form of ownership interests in limited partnerships or limited liability companies that qualify for CRA and tax credits. These entities are formed to develop and operate apartment complexes designed as high-quality affordable housing for lower income tenants throughout the U.S. To fully utilize the available tax credits, each of these entities must meet the regulatory affordable housing requirements for a minimum 15-year compliance period. In addition to affordable housing projects, the Company also invests in New Market Tax Credit projects that qualify for CRA credits, as well as eligible projects that qualify for renewable energy and historic tax credits. Investments in renewable energy tax credits help promote the development of renewable energy sources, and the investments in historic tax credits promote the rehabilitation of historic buildings and economic revitalization of the surrounding areas.

Investments in Qualified Affordable Housing Partnerships, Net

The Company records its investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

The following table presents the Company’s investments in qualified affordable housing partnerships, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in qualified affordable housing partnerships, net	$	207,037	$	184,873
Accrued expenses and other liabilities — Unfunded commitments	$	80,294	$	80,764

The following table presents additional information related to the Company’s investments in qualified affordable housing partnerships, net, for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Tax credits and other tax benefits recognized	$	46,034	$	39,262	$	46,698
Amortization expense included in income tax expense	$	36,561	$	28,046	$	38,464

Investments in Tax Credit and Other Investments, Net

Depending on the ownership percentage and the influence the Company has on the investments in tax credit and other investments, net, the Company applies the equity or cost method of accounting, or the measurement alternative as elected under ASU 2016-01 for equity investments without readily determinable fair value.

The following table presents the Company’s investments in tax credit and other investments, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in tax credit and other investments, net	$	254,140	$	231,635
Accrued expenses and other liabilities — Unfunded commitments	$	113,515	$	80,228

Amortization of tax credit and other investments was $85.5 million, $89.6 million, and $88.0 million for the years ended December 31, 2019, 2018 and 2017, respectively.

Included in Investments in tax credit and other investments, net, on the Consolidated Balance Sheet were equity securities with readily determinable fair values of $31.7 million and $31.2 million, as of December 31, 2019 and 2018, respectively. These equity securities are CRA investments and were measured at fair value with changes in fair value recorded in net income. The Company recorded unrealized gains on these equity securities of $789 thousand for the year ended December 31, 2019, and unrealized losses of $547 thousand for the year ended December 31, 2018.

The Company has equity securities without readily determinable fair values at carrying value totaling $19.1 million and $14.2 million as of December 31, 2019 and 2018, respectively, which are measured under the measurement alternative and the related adjustments from observable price changes. For the years ended December 31, 2019 and 2018, there were no adjustments to these securities.

As of December 31, 2019, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows:

($ in thousands)	Amount
2020	$	121,875
2021	32,039
2022	13,459
2023	15,753
2024	8,145
Thereafter	2,538
Total	$	193,809

The Company invested in four solar energy tax credit funds in the years 2014, 2015, 2017 and 2018 as a limited member. These tax credit funds engaged in the acquisition and leasing of mobile solar generators through DC Solar and affiliates (“DC Solar”) entities. These investments were recorded in Investments in tax credit and other investments, net on the Consolidated Balance Sheet and were accounted for under the equity method of accounting. DC Solar had its assets frozen in December 2018 and filed for bankruptcy protection in February 2019. In February 2019, an affidavit from a Federal Bureau of Investigation (“FBI”) special agent stated that DC Solar was operating a fraudulent “Ponzi-like scheme” and that the majority of the mobile solar generators sold to investors and managed by DC Solar, as well as the majority of the related lease revenues claimed to had been received by DC Solar might not have existed.

Tax credit investments are evaluated for possible OTTI on an annual basis or when events or changes in circumstances suggest that the carrying amount of the tax credit investments may not be realizable. Refer to Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K for a discussion on the Company’s impairment evaluation and monitoring process of tax credit investments. Investments in tax credit and other investments, net related to DC Solar tax credit investments was $7.0 million out of the $231.6 million as of December 31, 2018. During the first quarter of 2019, the Company fully wrote off its tax credit investments related to DC Solar and recorded a $7.0 million OTTI charge within Amortization of tax credit and other investments on the Consolidated Statement of Income. The Company concluded at that time that there would be no material future cash flows related to these investments, in part because of the fact that DC Solar has ceased operations and its bankruptcy case had been converted from Chapter 11 to Chapter 7 on March 22, 2019. During the fourth quarter of 2019, the Company recorded a $1.6 million pre-tax impairment recovery related to DC Solar. There were no balances recorded in Accrued expenses and other liabilities — Unfunded commitments related to DC Solar as of December 31, 2019 and 2018. Refer to Note 14 — Income Taxes to the Consolidated Financial Statements in this Form 10-K for a further discussion related to the impacts on the Company’s income tax expense related to the DC solar tax credit investments.

For the year ended December 31, 2019, the Company recorded an OTTI charge of $14.6 million related to historic tax credits, DC Solar and a CRA investment within Amortization of tax credit and other investments on the Consolidated Statement of Income. The Company also recorded a $1.6 million impairment recovery related to the previously charged-off DC Solar. In comparison, there was no OTTI charge or recovery recorded for the year ended December 31, 2018.

Variable Interest Entities

The Company invests in unconsolidated limited partnerships and similar entities that construct, own and operate affordable housing, historic rehabilitation projects, wind and solar projects, of which the majority of such investments are VIEs. As a limited partner in these partnerships, these investments are designed to generate a return primarily through the realization of federal tax credits and tax benefits. An unrelated third party is typically the general partner or managing member who has control over the significant activities of such investments. While the Company’s interest in some of the investments may exceed 50% of the outstanding equity interests, the Company does not consolidate these structures due to the general partner or managing member’s ability to manage the entity, which is indicative of power over them. The Company’s maximum exposure to loss in connection with these partnerships consist of the unamortized investment balance and any tax credits claimed that may become subject to recapture.

Special purpose entities formed in connection with securitization transactions are generally considered VIEs. The Company is the servicer of the multifamily residential loans it has securitized in 2016. The Company does not consolidate the multifamily securitization entity because it does not have power and does not have a variable interest that could potentially be significant to the VIE. A CLO is a VIE that purchases a pool of assets consisting primarily of non-investment grade corporate loans and issues multiple tranches of notes to investors to fund the asset purchases and pay upfront expenses associated with forming the CLO. The Company serves as the collateral manager of a CLO that closed in the fourth quarter of 2019 and retained a portion of the senior securities issued by the CLO. The Company does not consolidate the CLO as it does not hold interests that could potentially be significant to the CLO. The Company’s maximum exposure to loss from the CLO is equal to the carrying amount of the retained securities of $284.7 million as of December 31, 2019.

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Fair Value Measurement and Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value, Financial Assets and Liabilities Measured on Recurring and Nonrecurring Basis

Schedule of financial assets (liabilities) measured at fair value on a recurring basis

The following tables present financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	176,422	$	—		$	—	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	—		581,245			—		581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		603,471			—		603,471
Residential mortgage-backed securities	—		1,003,897			—		1,003,897
Municipal securities	—		102,302			—		102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		88,550			—		88,550
Residential mortgage-backed securities	—		46,548			—		46,548
Corporate debt securities	—		11,149			—		11,149
Foreign bonds	—		354,172			—		354,172
Asset-backed securities	—		64,752			—		64,752
Collateralized loan obligations (“CLOs”)	—		284,706			—		284,706
Total AFS investment securities	$	176,422	$	3,140,792		$	—	$	3,317,214
Investments in tax credit and other investments:
Equity securities (1)	$	21,746	$	9,927		$	—	$	31,673
Total investments in tax credit and other investments	$	21,746	$	9,927		$	—	$	31,673
Derivative assets:
Interest rate contracts	$	—	$	192,883		$	—	$	192,883
Foreign exchange contracts	—		54,637			—		54,637
Credit contracts	—		2			—		2
Equity contracts	—		993			421		1,414
Commodity contracts	—		81,380			—		81,380
Gross derivative assets	$	—	$	329,895		$	421	$	330,316
Netting adjustments (2)	$	—	$	(125,319	)	$	—	$	(125,319	)
Net derivative assets	$	—	$	204,576		$	421	$	204,997
Derivative liabilities:
Interest rate contracts	$	—	$	127,317		$	—	$	127,317
Foreign exchange contracts	—		48,610			—		48,610
Credit contracts	—		84			—		84
Commodity contracts	—		80,517			—		80,517
Gross derivative liabilities	$	—	$	256,528		$	—	$	256,528
Netting adjustments (2)	$	—	$	(159,799	)	$	—	$	(159,799	)
Net derivative liabilities	$	—	$	96,729		$	—	$	96,729

(1) Equity securities are comprised of mutual funds with readily determinable fair values.

(2) Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

($ in thousands)	Assets and Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Fair Value
AFS investment securities:
U.S. Treasury securities	$	564,815	$	—		$	—	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	—		217,173			—		217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	—		408,603			—		408,603
Residential mortgage-backed securities	—		946,693			—		946,693
Municipal securities	—		82,020			—		82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	—		26,052			—		26,052
Residential mortgage-backed securities	—		9,931			—		9,931
Corporate debt securities	—		10,869			—		10,869
Foreign bonds	—		463,048			—		463,048
Asset-backed securities	—		12,643			—		12,643
Total AFS investment securities	$	564,815	$	2,177,032		$	—	$	2,741,847
Investments in tax credit and other investments:
Equity securities (1)	$	20,678	$	10,531		$	—	$	31,209
Total investments in tax credit and other investments	$	20,678	$	10,531		$	—	$	31,209
Derivative assets:
Interest rate contracts	$	—	$	69,818		$	—	$	69,818
Foreign exchange contracts	—		21,624			—		21,624
Credit contracts	—		1			—		1
Equity contracts	—		1,278			673		1,951
Commodity contracts	—		14,422			—		14,422
Gross derivative assets	$	—	$	107,143		$	673	$	107,816
Netting adjustments (2)	$	—	$	(45,146	)	$	—	$	(45,146	)
Net derivative assets	$	—	$	61,997		$	673	$	62,670
Derivative liabilities:
Interest rate contracts	$	—	$	75,133		$	—	$	75,133
Foreign exchange contracts	—		19,940			—		19,940
Credit contracts	—		164			—		164
Commodity contracts	—		23,068			—		23,068
Gross derivative liabilities	$	—	$	118,305		$	—	$	118,305
Netting adjustments (2)	$	—	$	(38,402	)	$	—	$	(38,402	)
Net derivative liabilities	$	—	$	79,903		$	—	$	79,903

(1) Equity securities were comprised of mutual funds with readily determinable fair values.

(2)

Represents balance sheet netting of derivative assets and liabilities and related cash collateral under master netting agreements or similar agreements. See Note 6 — Derivatives to the Consolidated Financial Statements in this Form 10-K for additional information.

Reconciliation of the beginning and ending balances for warrants and other securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

The following table provides a reconciliation of the beginning and ending balances of these equity warrants for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
	Equity Warrants			Equity Warrants			Other Securities			Equity Warrants
Beginning balance	$	673		$	679		$	—		$	—
Transfer of investment security from held-to-maturity to AFS	—			—			115,615			—
Total gains included in earnings (1)	563			162			1,156			—
Issuances	114			65			—			679
Sales	—			—			(116,771		)	—
Settlements	(929		)	(233		)	—			—
Ending balance	$	421		$	673		$	—		$	679

(1)

Includes unrealized (losses) gains of $(292) thousand and $225 thousand for the years ended December 31, 2019 and 2018, respectively. There were no unrealized gains (losses) for the year ended December 31, 2017. The realized/unrealized gains (losses) of equity warrants are included in Lending fees on the Consolidated Statement of Income.

Schedule of the carrying and fair value estimates per the fair value hierarchy of financial instruments measured on a nonrecurring basis

The following tables present the fair value estimates for financial instruments as of December 31, 2019 and 2018, excluding financial instruments recorded at fair value on a recurring basis as they are included in the tables presented elsewhere in this Note. The carrying amounts in the following tables are recorded on the Consolidated Balance Sheet under the indicated captions, except for accrued interest receivable and mortgage servicing rights that are included in Other assets, and accrued interest payable that is included in Accrued expenses and other liabilities. These financial assets and liabilities are measured at amortized cost basis on the Company’s Consolidated Balance Sheet.

($ in thousands)	December 31, 2019
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,261,149	$	3,261,149	$	—	$	—	$	3,261,149
Interest-bearing deposits with banks	$	196,161	$	—	$	196,161	$	—	$	196,161
Resale agreements (1)	$	860,000	$	—	$	856,025	$	—	$	856,025
Restricted equity securities, at cost	$	78,580	$	—	$	78,580	$	—	$	78,580
Loans held-for-sale	$	434	$	—	$	434	$	—	$	434
Loans held-for-investment, net	$	34,420,252	$	—	$	—	$	35,021,300	$	35,021,300
Mortgage servicing rights	$	6,068	$	—	$	—	$	8,199	$	8,199
Accrued interest receivable	$	144,599	$	—	$	144,599	$	—	$	144,599
Financial liabilities:
Demand, checking, savings and money market deposits	$	27,109,951	$	—	$	27,109,951	$	—	$	27,109,951
Time deposits	$	10,214,308	$	—	$	10,208,895	$	—	$	10,208,895
Short-term borrowings	$	28,669	$	—	$	28,669	$	—	$	28,669
FHLB advances	$	745,915	$	—	$	755,371	$	—	$	755,371
Repurchase agreements (1)	$	200,000	$	—	$	232,597	$	—	$	232,597
Long-term debt	$	147,101	$	—	$	152,641	$	—	$	152,641
Accrued interest payable	$	27,246	$	—	$	27,246	$	—	$	27,246

($ in thousands)	December 31, 2018
	Carrying Amount		Level 1		Level 2		Level 3		Estimated Fair Value
Financial assets:
Cash and cash equivalents	$	3,001,377	$	3,001,377	$	—	$	—	$	3,001,377
Interest-bearing deposits with banks	$	371,000	$	—	$	371,000	$	—	$	371,000
Resale agreements (1)	$	1,035,000	$	—	$	1,016,724	$	—	$	1,016,724
Restricted equity securities, at cost	$	74,069	$	—	$	74,069	$	—	$	74,069
Loans held-for-sale	$	275	$	—	$	275	$	—	$	275
Loans held-for-investment, net	$	32,073,867	$	—	$	—	$	32,273,157	$	32,273,157
Mortgage servicing rights	$	7,836	$	—	$	—	$	11,427	$	11,427
Accrued interest receivable	$	146,262	$	—	$	146,262	$	—	$	146,262
Financial liabilities:
Demand, checking, savings and money market deposits	$	26,370,562	$	—	$	26,370,562	$	—	$	26,370,562
Time deposits	$	9,069,066	$	—	$	9,084,597	$	—	$	9,084,597
Short-term borrowings	$	57,638	$	—	$	57,638	$	—	$	57,638
FHLB advances	$	326,172	$	—	$	334,793	$	—	$	334,793
Repurchase agreements (1)	$	50,000	$	—	$	87,668	$	—	$	87,668
Long-term debt	$	146,835	$	—	$	152,556	$	—	$	152,556
Accrued interest payable	$	22,893	$	—	$	22,893	$	—	$	22,893

(1)

Resale and repurchase agreements are reported net pursuant to ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements. Out of gross repurchase agreements of $450.0 million, $250.0 million and $400.0 million as of December 31, 2019 and 2018, respectively, were eligible for netting against gross resale agreements.

Fair Value, Measurements, Recurring

Fair Value, Financial Assets and Liabilities Measured on Recurring and Nonrecurring Basis

Schedule of quantitative information about significant unobservable inputs used in the valuation of level 3 fair value measurements

The following table presents quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements as of December 31, 2019 and 2018. The significant unobservable inputs presented in the table below are those that the Company considers significant to the fair value of the Level 3 assets. The Company considers unobservable inputs to be significant if, by their exclusion, the fair value of the Level 3 assets would be impacted by a predetermined percentage change.

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique	Unobservable Inputs	Range of Inputs	Weighted-  Average (1)
December 31, 2019
Derivative assets:
Equity warrants	$	421	Black-Scholes option pricing model	Equity volatility	39% — 44%	42%
				Liquidity discount	47%	47%
December 31, 2018
Derivative assets:
Equity warrants	$	673	Black-Scholes option pricing model	Equity volatility	49% — 52%	51%
				Liquidity discount	47%	47%

(1) Weighted-average is calculated based on fair value of equity warrants as of December 31, 2019 and 2018, respectively.

Fair Value, Measurements, Nonrecurring

Fair Value, Financial Assets and Liabilities Measured on Recurring and Nonrecurring Basis

Schedule of quantitative information about significant unobservable inputs used in the valuation of level 3 fair value measurements

The following table presents the quantitative information about the significant unobservable inputs used in the valuation of Level 3 fair value measurements that are measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Fair Value Measurements (Level 3)		Valuation Technique(s)	Unobservable Input(s)	Range of Input(s)	Weighted- Average (1)
December 31, 2019
Non-PCI impaired loans	$	27,841	Discounted cash flows	Discount	4% — 15%	14%
	$	1,014	Fair value of collateral	Discount	8% — 20%	19%
	$	20,824	Fair value of collateral	Contract value	NM	NM
OREO	$	125	Fair value of property	Selling cost	8%	8%
Investments in tax credit and other investments, net	$	3,076	Individual analysis of each investment	Expected future tax benefits and distributions	NM	NM
December 31, 2018
Non-PCI impaired loans	$	16,921	Discounted cash flows	Discount	4% — 7%	6%
	$	2,751	Fair value of collateral	Discount	15% — 50%	21%
	$	11,499	Fair value of collateral	Contract value	NM	NM
	$	1,687	Fair value of property	Selling cost	8%	8%

NM — Not meaningful.

(1)

Weighted-average is based on the relative fair value of the respective assets as of December 31, 2019 and 2018.

Schedule of carrying amounts of assets that were still held and had fair value changes measured on a nonrecurring basis

The following tables present the carrying amounts of assets that were still held and had fair value changes measured on a nonrecurring basis as of December 31, 2019 and 2018:

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	47,554	$	47,554
CRE:
CRE	—		—		753		753
Total commercial	—		—		48,307		48,307
Consumer:
Residential mortgage:
HELOCs	—		—		1,372		1,372
Total consumer	—		—		1,372		1,372
Total non-PCI impaired loans	$	—	$	—	$	49,679	$	49,679
OREO (1)	$	—	$	—	$	125	$	125
Investments in tax credit and other investments, net	$	—	$	—	$	3,076	$	3,076

(1) Amounts are included in Other assets on the Consolidated Balance Sheet and represent the carrying value of OREO properties that were written down subsequent to their initial classification as OREO.

($ in thousands)	Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Fair Value Measurements
Non-PCI impaired loans:
Commercial:
C&I	$	—	$	—	$	26,873	$	26,873
CRE:
CRE	—		—		3,434		3,434
Total commercial	—		—		30,307		30,307
Consumer:
Residential mortgage:
Single-family residential	—		—		2,551		2,551
Total consumer	—		—		2,551		2,551
Total non-PCI impaired loans	$	—	$	—	$	32,858	$	32,858

Schedule of increase (decrease) in fair value of assets for which a fair value adjustment has been recognized, nonrecurring basis

The following table presents the increase (decrease) in fair value of assets for which a fair value adjustment has been recognized for the years ended December 31, 2019, 2018 and 2017, related to assets that were still held as of those dates:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI impaired loans:
Commercial:
C&I	$	(35,365	)	$	(9,341	)	$	(19,703	)
CRE:
CRE	9			270			(272		)
Construction and land	—			—			(147		)
Total CRE	9			270			(419		)
Total commercial	(35,356		)	(9,071		)	(20,122		)
Consumer:
Residential mortgage:
Single-family residential	—			15			(11		)
HELOCs	(2		)	—			—
Total residential mortgage	(2		)	15			(11		)
Other consumer	—			—			(2,491		)
Total consumer	$	(2	)	$	15		$	(2,502	)
Total non-PCI impaired loans	$	(35,358	)	$	(9,056	)	$	(22,624	)
OREO	$	(8	)	$	—		$	(1	)
Investments in tax credit and other investments, net	$	(13,023	)	$	—		$	—

XML

Stock Compensation Plans (Summary of Total Share-Based Compensation Expense and Related Tax Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement [Abstract]
Stock compensation costs	$ 30,761	$ 30,937	$ 24,657
Excess tax benefits related to stock compensation expense recognized in income tax expense	$ 4,792	$ 5,089	$ 4,775

XML

Commitments, Contingencies and Related Party Transactions (Credit-related Commitments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Loan commitments	$ 5,330,211	$ 5,147,821
Commercial letters of credit and SBLCs	$ 1,860,414	$ 1,796,647

XML

Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information (Unaudited)

Quarterly Financial Information (Unaudited)

($ and shares in thousands, except per share data)	2019 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	467,233	$	476,912	$	474,844	$	463,311
Interest expense	99,014		107,105		107,518		100,850
Net interest income before provision for credit losses	368,219		369,807		367,326		362,461
Provision for credit losses	18,577		38,284		19,245		22,579
Net interest income after provision for credit losses	349,642		331,523		348,081		339,882
Noninterest income	63,013		51,474		52,759		42,131
Noninterest expense	193,373		176,630		177,663		186,922
Income before income taxes	219,282		206,367		223,177		195,091
Income tax expense	31,067		34,951		72,797		31,067
Net income	$	188,215	$	171,416	$	150,380	$	164,024
EPS
- Basic	$	1.29	$	1.18	$	1.03	$	1.13
- Diluted	$	1.29	$	1.17	$	1.03	$	1.12
Weighted-average number of shares outstanding
- Basic	145,624		145,559		145,546		145,256
- Diluted	146,318		146,120		146,052		145,921

($ and shares in thousands, except per share data)	2018 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	457,334	$	422,185	$	400,311	$	371,873
Interest expense	87,918		73,465		58,632		45,180
Net interest income before provision for credit losses	369,416		348,720		341,679		326,693
Provision for credit losses	17,959		10,542		15,536		20,218
Net interest income after provision for credit losses	351,457		338,178		326,143		306,475
Noninterest income	41,695		46,502		48,268		74,444
Noninterest expense	188,097		179,815		177,419		169,135
Income before income taxes	205,055		204,865		196,992		211,784
Income tax expense	32,037		33,563		24,643		24,752
Net income	$	173,018	$	171,302	$	172,349	$	187,032
EPS
- Basic	$	1.19	$	1.18	$	1.19	$	1.29
- Diluted	$	1.18	$	1.17	$	1.18	$	1.28
Weighted-average number of shares outstanding
- Basic	144,960		144,921		144,899		144,664
- Diluted	146,133		146,173		146,091		145,939

XML

Employee Benefit Plans (Summary of Expected SERP Payments) (Details) - Supplemental Executive Retirement Plan (SERP) $ in Thousands	Dec. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
2020	$ 339
2021	349
2022	359
2023	370
2024	381
Thereafter	7,103
Total	$ 8,901

XML

Loans Receivable and Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2019

Loans and Leases Receivable Disclosure [Abstract]

Summary of TDR loans subsequently defaulted

The following table presents information on loans for which a subsequent default occurred during the years ended December 31, 2019, 2018 and 2017, that had been modified as TDR within 12 months or less of its default, and were still in default at the respective period end:

($ in thousands)	Loans Modified as TDRs that Subsequently Defaulted During the Year Ended December 31,
	2019			2018			2017
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
Commercial:
C&I	3	$	13,112	4	$	1,890	3	$	8,659
CRE:
CRE	—	$	—	1	$	186	—	$	—
Total CRE	—	$	—	1	$	186	—	$	—
Consumer:
Residential mortgage:
HELOCs	—	$	—	1	$	150	—	$	—
Total residential mortgage	—	$	—	1	$	150	—	$	—

Schedule of the composition of Non-PCI and PCI loans

The following table presents the composition of the Company’s non-PCI and PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019								December 31, 2018
	Non-PCI Loans (1)			PCI     Loans (2)		Total (1)(2)			Non-PCI Loans (1)			PCI Loans (2)			Total (1)(2)
Commercial:
C&I	$	12,149,121		$	1,810	$	12,150,931		$	12,054,818		$	2,152		$	12,056,970
CRE:
CRE	10,165,247			113,201		10,278,448			9,097,165			163,034			9,260,199
Multifamily residential	2,834,212			22,162		2,856,374			2,433,924			36,744			2,470,668
Construction and land	628,459			40		628,499			538,752			42			538,794
Total CRE	13,627,918			135,403		13,763,321			12,069,841			199,820			12,269,661
Total commercial	25,777,039			137,213		25,914,252			24,124,659			201,972			24,326,631
Consumer:
Residential mortgage:
Single-family residential	7,028,979			79,611		7,108,590			5,939,258			97,196			6,036,454
HELOCs	1,466,736			6,047		1,472,783			1,681,979			8,855			1,690,834
Total residential mortgage	8,495,715			85,658		8,581,373			7,621,237			106,051			7,727,288
Other consumer	282,914			—		282,914			331,270			—			331,270
Total consumer	8,778,629			85,658		8,864,287			7,952,507			106,051			8,058,558
Total loans held-for-investment	$	34,555,668		$	222,871	$	34,778,539		$	32,077,166		$	308,023		$	32,385,189
Allowance for loan losses	(358,287		)	—		(358,287		)	(311,300		)	(22		)	(311,322		)
Loans held-for-investment, net	$	34,197,381		$	222,871	$	34,420,252		$	31,765,866		$	308,001		$	32,073,867

(1) Includes net deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts of $(43.2) million and $(48.9) million as of December 31, 2019 and 2018, respectively.

(2)

Includes ASC 310-30 discount of $14.3 million and $22.2 million as of December 31, 2019 and 2018, respectively.

Summary of credit risk rating for non-PCI and PCI loans by loan type

The following tables present the credit risk ratings for non-PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,423,094	$	406,543	$	302,509	$	16,975	$	12,149,121
CRE:
CRE	10,003,749		83,683		77,815		—		10,165,247
Multifamily residential	2,806,475		20,406		7,331		—		2,834,212
Construction and land	603,447		—		25,012		—		628,459
Total CRE	13,413,671		104,089		110,158		—		13,627,918
Total commercial	24,836,765		510,632		412,667		16,975		25,777,039
Consumer:
Residential mortgage:
Single-family residential	7,012,522		2,278		14,179		—		7,028,979
HELOCs	1,453,207		2,787		10,742		—		1,466,736
Total residential mortgage	8,465,729		5,065		24,921		—		8,495,715
Other consumer	280,392		5		2,517		—		282,914
Total consumer	8,746,121		5,070		27,438		—		8,778,629
Total	$	33,582,886	$	515,702	$	440,105	$	16,975	$	34,555,668

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total Non- PCI Loans
Commercial:
C&I	$	11,644,470	$	260,089	$	139,844	$	10,415	$	12,054,818
CRE:
CRE	8,957,228		49,705		90,232		—		9,097,165
Multifamily residential	2,402,991		20,551		10,382		—		2,433,924
Construction and land	485,217		19,838		33,697		—		538,752
Total CRE	11,845,436		90,094		134,311		—		12,069,841
Total commercial	23,489,906		350,183		274,155		10,415		24,124,659
Consumer:
Residential mortgage:
Single-family residential	5,925,584		6,376		7,298		—		5,939,258
HELOCs	1,669,300		1,576		11,103		—		1,681,979
Total residential mortgage	7,594,884		7,952		18,401		—		7,621,237
Other consumer	328,767		1		2,502		—		331,270
Total consumer	7,923,651		7,953		20,903		—		7,952,507
Total	$	31,413,557	$	358,136	$	295,058	$	10,415	$	32,077,166

The following tables present the credit risk ratings for PCI loans by loan type as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,810	$	—	$	—	$	—	$	1,810
CRE:
CRE	102,257		—		10,944		—		113,201
Multifamily residential	22,162		—		—		—		22,162
Construction and land	40		—		—		—		40
Total CRE	124,459		—		10,944		—		135,403
Total commercial	126,269		—		10,944		—		137,213
Consumer:
Residential mortgage:
Single-family residential	79,517		—		94		—		79,611
HELOCs	5,849		—		198		—		6,047
Total residential mortgage	85,366		—		292		—		85,658
Total consumer	85,366		—		292		—		85,658
Total (1)	$	211,635	$	—	$	11,236	$	—	$	222,871

($ in thousands)	December 31, 2018
	Pass/Watch		Special Mention		Substandard		Doubtful		Total PCI Loans
Commercial:
C&I	$	1,996	$	—	$	156	$	—	$	2,152
CRE:
CRE	143,839		—		19,195		—		163,034
Multifamily residential	35,221		—		1,523		—		36,744
Construction and land	42		—		—		—		42
Total CRE	179,102		—		20,718		—		199,820
Total commercial	181,098		—		20,874		—		201,972
Consumer:
Residential mortgage:
Single-family residential	95,789		1,021		386		—		97,196
HELOCs	8,314		256		285		—		8,855
Total residential mortgage	104,103		1,277		671		—		106,051
Total consumer	104,103		1,277		671		—		106,051
Total (1)	$	285,201	$	1,277	$	21,545	$	—	$	308,023

(1)

Loans net of ASC 310-30 discount.

Schedule of aging analysis on non-PCI loans

The following tables present the aging analysis on non-PCI loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	31,121	$	17,034	$	48,155	$	31,084	$	43,751	$	74,835	$	12,026,131	$	12,149,121
CRE:
CRE	22,830		1,977		24,807		540		15,901		16,441		10,123,999		10,165,247
Multifamily residential	198		531		729		534		285		819		2,832,664		2,834,212
Construction and land	—		—		—		—		—		—		628,459		628,459
Total CRE	23,028		2,508		25,536		1,074		16,186		17,260		13,585,122		13,627,918
Total commercial	54,149		19,542		73,691		32,158		59,937		92,095		25,611,253		25,777,039
Consumer:
Residential mortgage:
Single-family  residential	15,443		5,074		20,517		1,964		12,901		14,865		6,993,597		7,028,979
HELOCs	4,273		2,791		7,064		1,448		9,294		10,742		1,448,930		1,466,736
Total residential  mortgage	19,716		7,865		27,581		3,412		22,195		25,607		8,442,527		8,495,715
Other consumer	6		5		11		—		2,517		2,517		280,386		282,914
Total consumer	19,722		7,870		27,592		3,412		24,712		28,124		8,722,913		8,778,629
Total	$	73,871	$	27,412	$	101,283	$	35,570	$	84,649	$	120,219	$	34,334,166	$	34,555,668

($ in thousands)	December 31, 2018
	Accruing Loans 30-59 Days Past Due		Accruing Loans 60-89 Days Past Due		Total Accruing Past Due Loans		Nonaccrual Loans Less Than 90  Days Past Due		Nonaccrual Loans 90 or More Days  Past Due		Total Nonaccrual Loans		Current Accruing Loans		Total Non- PCI Loans
Commercial:
C&I	$	21,032	$	19,170	$	40,202	$	17,097	$	26,743	$	43,840	$	11,970,776	$	12,054,818
CRE:
CRE	7,740		—		7,740		3,704		20,514		24,218		9,065,207		9,097,165
Multifamily residential	4,174		—		4,174		1,067		193		1,260		2,428,490		2,433,924
Construction and land	207		—		207		—		—		—		538,545		538,752
Total CRE	12,121		—		12,121		4,771		20,707		25,478		12,032,242		12,069,841
Total commercial	33,153		19,170		52,323		21,868		47,450		69,318		24,003,018		24,124,659
Consumer:
Residential mortgage:
Single-family  residential	14,645		7,850		22,495		509		4,750		5,259		5,911,504		5,939,258
HELOCs	2,573		1,816		4,389		1,423		7,191		8,614		1,668,976		1,681,979
Total residential  mortgage	17,218		9,666		26,884		1,932		11,941		13,873		7,580,480		7,621,237
Other consumer	11		12		23		—		2,502		2,502		328,745		331,270
Total consumer	17,229		9,678		26,907		1,932		14,443		16,375		7,909,225		7,952,507
Total	$	50,382	$	28,848	$	79,230	$	23,800	$	61,893	$	85,693	$	31,912,243	$	32,077,166

Summary of additions and modifications to non-PCI troubled debt restructurings

The following tables present the additions to non-PCI TDRs for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2019
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	95,742	$	71,332	$	8,004
CRE:
Construction and land	1	19,696		19,691		—
Total CRE	1	19,696		19,691		—
Total commercial	9	$	115,438	$	91,023	$	8,004
Consumer:
Residential mortgage:
Single-family residential	2	$	1,123	$	1,098	$	2
HELOCs	2	539		528		—
Total residential mortgage	4	1,662		1,626		2
Total consumer	4	$	1,662	$	1,626	$	2

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2018
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	8	$	11,366	$	9,520	$	699
CRE:
CRE	1	750		752		—
Total CRE	1	750		752		—
Total commercial	9	$	12,116	$	10,272	$	699
Consumer:
Residential mortgage:
Single-family residential	2	$	405	$	391	$	(28	)
HELOCs	2	1,546		1,418		—
Total residential mortgage	4	1,951		1,809		(28		)
Total consumer	4	$	1,951	$	1,809	$	(28	)

($ in thousands)	Loans Modified as TDRs During the Year Ended December 31, 2017
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment (1)		Financial Impact (2)
Commercial:
C&I	16	$	43,884	$	37,900	$	11,520
CRE:
CRE	4	2,675		2,627		157
Multifamily residential	1	3,655		2,969		—
Total CRE	5	6,330		5,596		157
Total commercial	21	$	50,214	$	43,496	$	11,677
Consumer:
Residential mortgage:
HELOCs	1	$	152	$	155	$	—
Total residential mortgage	1	152		155		—
Total consumer	1	$	152	$	155	$	—

(1) Includes subsequent payments after modification and reflects the balance as of December 31, 2019, 2018 and 2017.

(2) The financial impact includes charge-offs and specific reserves recorded since the modification date.

The following tables present the non-PCI TDR modifications for the years ended December 31, 2019, 2018 and 2017 by modification type:

($ in thousands)	Modification Type During the Year Ended December 31, 2019
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	31,611	$	—	$	—	$	39,721	$	71,332
CRE:
Construction and land	—		—		19,691		—		19,691
Total CRE	—		—		19,691		—		19,691
Total commercial	31,611		—		19,691		39,721		91,023
Consumer:
Residential mortgage:
Single-family residential	—		1,098		—		—		1,098
HELOCs	—		397		—		131		528
Total residential mortgage	—		1,495		—		131		1,626
Total consumer	—		1,495		—		131		1,626
Total	$	31,611	$	1,495	$	19,691	$	39,852	$	92,649

($ in thousands)	Modification Type During the Year Ended December 31, 2018
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	5,472	$	—	$	—	$	4,048	$	9,520
CRE:
CRE	—		—		752		—		752
Total CRE	—		—		752		—		752
Total commercial	5,472		—		752		4,048		10,272
Consumer:
Residential mortgage:
Single-family residential	66		—		—		325		391
HELOCs	1,353		—		—		65		1,418
Total residential mortgage	1,419		—		—		390		1,809
Total consumer	1,419		—		—		390		1,809
Total	$	6,891	$	—	$	752	$	4,438	$	12,081

($ in thousands)	Modification Type During the Year Ended December 31, 2017
	Principal (1)		Principal and Interest (2)		Interest Rate Reduction		Other (3)		Total
Commercial:
C&I	$	13,568	$	7,848	$	—	$	16,484	$	37,900
CRE:
CRE	2,627		—		—		—		2,627
Multifamily residential	2,969		—		—		—		2,969
Total CRE	5,596		—		—		—		5,596
Total commercial	19,164		7,848		—		16,484		43,496
Consumer:
Residential mortgage:
HELOCs	—		155		—		—		155
Total residential mortgage	—		155		—		—		155
Total consumer	—		155		—		—		155
Total	$	19,164	$	8,003	$	—	$	16,484	$	43,651

(1) Includes forbearance payments, term extensions and principal deferments that modify the terms of the loan from principal and interest payments to interest payments only.

(2) Includes principal and interest deferments or reductions.

(3)

Includes primarily funding to secure additional collateral and provides liquidity to collateral-dependent C&I loans.

Summary of non-PCI impaired loans

The following tables present information on non-PCI impaired loans as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	174,656	$	73,956	$	40,086	$	114,042	$	2,881
CRE:
CRE	27,601		20,098		1,520		21,618		97
Multifamily residential	4,965		1,371		3,093		4,464		55
Construction and land	19,696		19,691		—		19,691		—
Total CRE	52,262		41,160		4,613		45,773		152
Total commercial	226,918		115,116		44,699		159,815		3,033
Consumer:
Residential mortgage:
Single-family residential	23,626		8,507		13,704		22,211		35
HELOCs	13,711		6,125		7,449		13,574		8
Total residential mortgage	37,337		14,632		21,153		35,785		43
Other consumer	2,517		—		2,517		2,517		2,517
Total consumer	39,854		14,632		23,670		38,302		2,560
Total non-PCI impaired loans	$	266,772	$	129,748	$	68,369	$	198,117	$	5,593

($ in thousands)	December 31, 2018
	Unpaid Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Commercial:
C&I	$	82,963	$	48,479	$	8,609	$	57,088	$	1,219
CRE:
CRE	36,426		28,285		2,067		30,352		208
Multifamily residential	6,031		2,949		2,611		5,560		75
Total CRE	42,457		31,234		4,678		35,912		283
Total commercial	125,420		79,713		13,287		93,000		1,502
Consumer:
Residential mortgage:
Single-family residential	14,670		2,552		10,908		13,460		34
HELOCs	10,035		5,547		4,409		9,956		5
Total residential mortgage	24,705		8,099		15,317		23,416		39
Other consumer	2,502		—		2,502		2,502		2,491
Total consumer	27,207		8,099		17,819		25,918		2,530
Total non-PCI impaired loans	$	152,627	$	87,812	$	31,106	$	118,918	$	4,032

Schedule of average recorded investment and amount of interest income on non-PCI impaired loans

The following table presents the average recorded investment and interest income recognized on non-PCI impaired loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019				2018				2017
	Average Recorded Investment		Recognized Interest    Income (1)		Average Recorded Investment		Recognized Interest Income (1)		Average Recorded Investment		Recognized Interest    Income (1)
Commercial:
C&I	$	248,619	$	2,932	$	143,430	$	1,046	$	110,662	$	1,517
CRE:
CRE	33,046		464		35,049		491		36,003		578
Multifamily residential	6,116		228		11,742		249		11,455		422
Construction and land	19,691		68		3,973		—		4,382		—
Total CRE	58,853		760		50,764		740		51,840		1,000
Total commercial	307,472		3,692		194,194		1,786		162,502		2,517
Consumer:
Residential mortgage:
Single-family residential	37,315		496		22,350		474		14,994		417
HELOCs	22,851		130		14,134		70		5,494		55
Total residential mortgage	60,166		626		36,484		544		20,488		472
Other consumer	2,552		—		2,502		—		2,142		—
Total consumer	62,718		626		38,986		544		22,630		472
Total non-PCI impaired loans	$	370,190	$	4,318	$	233,180	$	2,330	$	185,132	$	2,989

(1)

Includes interest income recognized on accruing non-PCI TDRs. Interest payments received on nonaccrual non-PCI loans are reflected as a reduction to principal, not as interest income.

Summary of the activity in the allowance for credit losses

The following table presents a summary of activities in the allowance for loan losses by loan type for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Non-PCI Loans
Allowance for non-PCI loans, beginning of period	$	311,300		$	287,070		$	260,402
Provision for loan losses on non-PCI loans	100,115			65,043			49,129
Gross charge-offs:
Commercial:
C&I	(73,985		)	(59,244		)	(38,118		)
CRE:
CRE	(1,021		)	—			—
Multifamily residential	—			—			(635		)
Construction and land	—			—			(149		)
Total CRE	(1,021		)	—			(784		)
Consumer:
Residential mortgage:
Single-family residential	(11		)	(1		)	(1		)
HELOCs	—			—			(55		)
Total residential mortgage	(11		)	(1		)	(56		)
Other consumer	(50		)	(188		)	(17		)
Total gross charge-offs	(75,067		)	(59,433		)	(38,975		)
Gross recoveries:
Commercial:
C&I	14,501			10,417			11,371
CRE:
CRE	5,209			5,194			2,111
Multifamily residential	1,856			1,757			1,357
Construction and land	536			740			259
Total CRE	7,601			7,691			3,727
Consumer:
Residential mortgage:
Single-family residential	136			1,214			546
HELOCs	7			38			24
Total residential mortgage	143			1,252			570
Other consumer	19			3			152
Total gross recoveries	22,264			19,363			15,820
Net charge-offs	(52,803		)	(40,070		)	(23,155		)
Foreign currency translation adjustments	(325		)	(743		)	694
Allowance for non-PCI loans, end of period	358,287			311,300			287,070
PCI Loans
Allowance for PCI loans, beginning of period	22			58			118
Reversal of loan losses on PCI loans	(22		)	(36		)	(60		)
Allowance for PCI loans, end of period	—			22			58
Allowance for loan losses	$	358,287		$	311,322		$	287,128

The following table presents a summary of activities in the allowance for unfunded credit commitments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Allowance for unfunded credit commitments, beginning of period	$	12,566		$	13,318		$	16,121
Reversal of unfunded credit commitments	(1,408		)	(752		)	(2,803		)
Allowance for unfunded credit commitments, end of period	$	11,158		$	12,566		$	13,318

Allowance for loan losses and recorded investments by loan type and impairment methodology

The following tables present the Company’s allowance for loan losses and recorded investments by loan type and impairment methodology as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	2,881	$	97	$	55	$	—	$	35	$	8	$	2,517	$	5,593
Collectively evaluated for impairment	235,495		40,412		22,771		19,404		28,492		5,257		863		352,694
Acquired with deteriorated credit quality	—		—		—		—		—		—		—		—
Total	$	238,376	$	40,509	$	22,826	$	19,404	$	28,527	$	5,265	$	3,380	$	358,287
Recorded investment in loans
Individually evaluated for impairment	$	114,042	$	21,618	$	4,464	$	19,691	$	22,211	$	13,574	$	2,517	$	198,117
Collectively evaluated for impairment	12,035,079		10,143,629		2,829,748		608,768		7,006,768		1,453,162		280,397		34,357,551
Acquired with deteriorated credit quality (1)	1,810		113,201		22,162		40		79,611		6,047		—		222,871
Total (1)	$	12,150,931	$	10,278,448	$	2,856,374	$	628,499	$	7,108,590	$	1,472,783	$	282,914	$	34,778,539

($ in thousands)	December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Allowance for loan losses
Individually evaluated for impairment	$	1,219	$	208	$	75	$	—	$	34	$	5	$	2,491	$	4,032
Collectively evaluated for impairment	187,898		40,436		19,810		20,290		31,306		5,769		1,759		307,268
Acquired with deteriorated credit quality	—		22		—		—		—		—		—		22
Total	$	189,117	$	40,666	$	19,885	$	20,290	$	31,340	$	5,774	$	4,250	$	311,322
Recorded investment in loans
Individually evaluated for impairment	$	57,088	$	30,352	$	5,560	$	—	$	13,460	$	9,956	$	2,502	$	118,918
Collectively evaluated for impairment	11,997,730		9,066,813		2,428,364		538,752		5,925,798		1,672,023		328,768		31,958,248
Acquired with deteriorated credit quality (1)	2,152		163,034		36,744		42		97,196		8,855		—		308,023
Total (1)	$	12,056,970	$	9,260,199	$	2,470,668	$	538,794	$	6,036,454	$	1,690,834	$	331,270	$	32,385,189

(1)

Loans net of ASC 310-30 discount.

Summary of changes in the accretable yield for the PCI loans

The following table presents the changes in accretable yield on PCI loans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Accretable yield for PCI loans, beginning of period	$	74,870		$	101,977		$	136,247
Accretion	(24,220		)	(34,662		)	(42,487		)
Changes in expected cash flows	(140		)	7,555			8,217
Accretable yield for PCI loans, end of period	$	50,510		$	74,870		$	101,977

Schedule of loan securitization, loan purchases into held-for-investment portfolio, reclassification of loans held-for-investment to/from held-for-sale, and sales

The following tables provide information about the carrying value of loans purchased for the held-for-investment portfolio, loans sold and loans transferred from held-for-investment to held-for-sale at lower of cost or fair value during the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	245,002	$	39,062	$	—	$	1,573	$	—	$	—	$	—	$	285,637
Sales (2)(3)(4)	$	245,791	$	39,062	$	—	$	1,573	$	10,410	$	—	$	—	$	296,836
Purchases (5)	$	397,615	$	—	$	8,988	$	—	$	117,227	$	—	$	—	$	523,830

($ in thousands)	Year Ended December 31, 2018
	Commercial								Consumer						Total
			CRE						Residential Mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	404,321	$	62,291	$	—	$	—	$	14,981	$	—	$	—	$	481,593
Loans transferred from held-for-sale to held-for-investment	$	2,306	$	—	$	—	$	—	$	—	$	—	$	—	$	2,306
Sales (2)(3)(4)	$	413,844	$	62,291	$	—	$	—	$	34,966	$	—	$	—	$	511,101
Purchases (5)	$	525,767	$	—	$	7,389	$	—	$	63,781	$	—	$	—	$	596,937

($ in thousands)	Year Ended December 31, 2017
	Commercial								Consumer						Total
			CRE						Residential mortgage
	C&I		CRE		Multifamily Residential		Construction and Land		Single-Family Residential		HELOCs		Other Consumer
Loans transferred from held-for-investment to held-for-sale (1)	$	476,644	$	52,217	$	531	$	1,609	$	249	$	—	$	3,706	$	534,956
Loans of DCB branches transferred from held-for-investment to held-for-sale (included in Branch assets held-for-sale) (1)	$	17,590	$	36,783	$	12,448	$	241	$	6,416	$	4,309	$	345	$	78,132
Sales (2)(3)(4)	$	476,644	$	52,217	$	531	$	1,609	$	21,058	$	—	$	25,905	$	577,964
Purchases (5)	$	503,359	$	—	$	2,311	$	—	$	29,060	$	—	$	—	$	534,730

(1) The Company recorded $789 thousand, $14.6 million and $473 thousand in write-downs to the allowance for loan losses related to loans transferred from held-for-investment to held-for-sale for the years ended December 31, 2019, 2018 and 2017, respectively.

(2) Includes originated loans sold of $230.3 million, $309.7 million and $178.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. Originated loans sold were primarily comprised of C&I loans for the years ended December 31, 2019 and 2018; and C&I, CRE and single-family residential loans for the year ended December 31, 2017.

(3) Includes purchased loans sold in the secondary market of $66.5 million, $201.4 million and $399.8 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(4) Net gains on sales of loans were $4.0 million, $6.6 million and $8.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

(5)

C&I loan purchases for each of the yeas ended December 31, 2019, 2018 and 2017 were comprised of broadly syndicated C&I term loans.

XML

Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 674,035	$ 703,701	$ 505,624
Other comprehensive income (loss), net of tax:
Net changes in unrealized gains (losses) on AFS investment securities	43,402	(8,652)	(2,126)
Foreign currency translation adjustments	(3,636)	(5,732)	12,753
Other comprehensive income (loss)	39,766	(14,384)	10,627
COMPREHENSIVE INCOME	$ 713,801	$ 689,317	$ 516,251

XML

Cover Page - USD ($)

12 Months Ended

Dec. 31, 2019

Jan. 31, 2020

Jun. 30, 2019

Cover page.

Document Type

10-K

Document Annual Report

true

Document Period End Date

Dec. 31, 2019

Document Transition Report

false

Entity File Number

000-24939

Entity Registrant Name

EAST WEST BANCORP, INC.

Entity Central Index Key

0001069157

Current Fiscal Year End Date

--12-31

Document Fiscal Year Focus

2019

Document Fiscal Period Focus

FY

Amendment Flag

false

Entity Incorporation, State or Country Code

DE

Entity Tax Identification Number

95-4703316

Entity Address, Address Line One

135 North Los Robles Ave.

Entity Address, Address Line Two

7th Floor

Entity Address, City or Town

Pasadena

Entity Address, State or Province

CA

Entity Address, Postal Zip Code

91101

City Area Code

626

Local Phone Number

768-6000

Title of 12(b) Security

Common Stock, $0.001 Par Value

Trading Symbol

EWBC

Security Exchange Name

NASDAQ

Entity Well-known Seasoned Issuer

Yes

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Large Accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

Entity Shell Company

false

Entity Public Float

$ 6,765,665,370

Entity Common Stock, Shares Outstanding

145,625,565

Documents Incorporated by Reference

 Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A relating to its 2020 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K.

XML

Summary of Significant Accounting Policies (Goodwill and Other Intangible Assets) (Details) - Customer Relationships	12 Months Ended
	Dec. 31, 2019
Minimum
Goodwill and other intangible assets
Projected useful life	8 years
Maximum
Goodwill and other intangible assets
Projected useful life	15 years

XML

Parent Company Condensed Financial Statements (Condensed Statement of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of cash flows
Net income	$ 188,215	$ 171,416	$ 150,380	$ 164,024	$ 173,018	$ 171,302	$ 172,349	$ 187,032	$ 674,035	$ 703,701	$ 505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax (benefit) expense									(21,604)	(16,470)	33,856
Gains on sales of AFS debt and equity investment securities											(8,037)
Net change in other assets									(170,819)	(60,791)	45,354
Net change in other liabilities									7,012	88,070	(1,965)
Net cash provided by operating activities									735,829	883,172	703,275
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments									(146,902)	(132,605)	(173,630)
Proceeds from distributions received from equity method investees									9,502	5,185	8,387
Other investing activities									2,560	4,035	(19,969)
AFS investment securities:
Proceeds from sales available-for sale debt securities									627,110	364,270
Proceeds from sales of available-for sale securities											832,844
Purchases of available-for-sale debt securities									(2,303,317)	(888,673)
Purchases of available-for-sale securities											(828,604)
Net cash (used in) provided by investing activities									(2,571,176)	(3,832,412)	(2,506,824)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements									3,383	2,846	2,280
Stocks tendered for payment of withholding taxes									(14,635)	(15,634)	(12,940)
Cash dividends paid									(155,107)	(125,988)	(116,820)
Net cash (used in) provided by financing activities									2,124,962	3,800,808	2,068,460
NET INCREASE IN CASH AND CASH EQUIVALENTS									259,772	826,785	296,089
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR				3,001,377				2,174,592	3,001,377	2,174,592	1,878,503
CASH AND CASH EQUIVALENTS, END OF YEAR	3,261,149				3,001,377				3,261,149	3,001,377	2,174,592
Parent Company
Statement of cash flows
Net income									674,035	703,701	505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiaries, principally bank									(498,569)	(554,070)	(245,262)
Amortization expenses									8,703	671	6,158
Deferred income tax (benefit) expense									(10,132)	3,517	940
Gains on sales of AFS debt investment securities									0	0
Gains on sales of AFS debt and equity investment securities											(326)
Net change in other assets									10,246	(595)	(3,341)
Net change in other liabilities									(18)	(45)	(560)
Net cash provided by operating activities									184,265	153,179	263,233
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments									(292)	(1,049)	(11,591)
Proceeds from distributions received from equity method investees									2,577	1,491	1,814
Investments in and advances to nonbank subsidiaries									(3,314)	0	0
Other investing activities									(157)	0	0
AFS investment securities:
Proceeds from sales available-for sale debt securities									0	0
Proceeds from sales of available-for sale securities											18,326
Purchases of available-for-sale debt securities									0	0
Purchases of available-for-sale securities											(9,000)
Net cash (used in) provided by investing activities									(1,186)	442	(451)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt									0	(25,000)	(15,000)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements									3,383	2,846	2,280
Stocks tendered for payment of withholding taxes									(14,635)	(15,634)	(12,940)
Cash dividends paid									(155,107)	(125,988)	(116,820)
Net cash (used in) provided by financing activities									(166,359)	(163,776)	(142,480)
NET INCREASE IN CASH AND CASH EQUIVALENTS									16,720	(10,155)	120,302
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR				$ 149,411				$ 159,566	149,411	159,566	39,264
CASH AND CASH EQUIVALENTS, END OF YEAR	$ 166,131				$ 149,411				$ 166,131	$ 149,411	$ 159,566

XML

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

General

East West Bancorp, Inc. (referred to herein on an unconsolidated basis as “East West” and on a consolidated basis as the “Company”) is a registered bank holding company that offers a full range of banking services to individuals and businesses through its subsidiary bank, East West Bank and its subsidiaries (“East West Bank” or the “Bank”). The Bank is the Company’s principal asset. As of December 31, 2019, the Company operates in more than 125 locations in the United States (“U.S.”) and Greater China. In the U.S., the Bank’s corporate headquarters and main administrative offices are located in California, and its branches are located in California, Texas, New York, Washington, Georgia, Massachusetts and Nevada. In Greater China, East West’s presence includes full service branches in Hong Kong, Shanghai, Shantou and Shenzhen, and representative offices in Beijing, Chongqing, Guangzhou and Xiamen. In 2017, the Company sold the insurance brokerage business of East West Insurance Services, Inc. (“EWIS”), which remains a subsidiary of East West and continues to maintain its insurance broker license. In 2019, East West acquired Enstream Capital Markets, LLC, a private broker dealer and also established East West Investment Management LLC, a registered investment adviser. Both Enstream Capital Markets, LLC (subsequently renamed as East West Markets, LLC) and East West Investment Management LLC are wholly-owned subsidiaries of East West.

Significant Accounting Policies

Basis of Presentation — The accounting and reporting policies of the Company conform with the U.S. Generally Accepted Accounting Principles (“GAAP”), applicable guidelines prescribed by regulatory authorities and general practices in the banking industry. The preparation of the Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the Consolidated Financial Statements, income and expenses during the reporting period, and the related disclosures. Actual results could differ materially from those estimates. Certain items on the Consolidated Financial Statements and notes for the prior years have been reclassified to conform to the 2019 presentation.

Principles of Consolidation — The Consolidated Financial Statements in this Form 10-K include the accounts of East West and its subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. East West also has six wholly-owned subsidiaries that are statutory business trusts (the “Trusts”). In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810, Consolidation, the Trusts are not included on the Consolidated Financial Statements.

Cash and Cash Equivalents — Cash and cash equivalents include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRB”) and other financial institutions, and federal funds sold with original maturities up to three months.

Interest-bearing Deposits with Banks — Interest-bearing deposits with banks include cash placed with other banks with original maturities greater than three months and less than one year.

Resale Agreements and Repurchase Agreements — Resale agreements are recorded as receivables based on the values at which the securities are acquired. The market values of the underlying securities collateralizing the resale agreements, including accrued interest, are monitored. Additional collateral may be requested from the counterparties or excess collateral may be returned to the counterparties by the Company under the contractual terms of the arrangements, when deemed appropriate. Repurchase agreements are accounted for as collateralized financing transactions and recorded as liabilities based on the values at which the securities are sold. The Company may have to provide additional collateral to the counterparties, or the counterparties may return excess collateral to the Company, for the repurchase agreements when deemed appropriate. The Company has elected to offset resale and repurchase transactions with the same counterparty on the Consolidated Balance Sheet when it has a legally enforceable master netting agreement and when the transactions are eligible for netting under ASC 210-20-45-11, Balance Sheet Offsetting: Repurchase and Reverse Repurchase Agreements.

Securities — The Company’s securities include various debt securities, marketable equity securities and restricted equity securities. Debt securities are recorded on the Consolidated Balance Sheet as of their trade dates. The Company classifies its debt securities as trading securities, AFS or held-to-maturity investment securities based on management’s intention on the date of the purchase.

Debt securities are purchased for liquidity and investment purpose, as part of asset-liability management and other strategic activities. Debt securities for which the Company does not have the positive intention and ability to hold to maturity are classified as AFS and reported at fair value with unrealized gains and losses net of applicable income taxes, included in AOCI. We recognize realized gains and losses on the sale of AFS debt securities using the specific identification method. For each reporting period, debt securities classified as either AFS or held-to-maturity investment securities that are in an unrealized loss position are analyzed as part of the Company’s ongoing other-than-temporary impairment (“OTTI”) assessment. The initial indicator of OTTI is a decline in fair value below the amortized cost of the debt security. In determining whether OTTI has occurred, the Company considers the severity and duration of the decline in fair value, the length of time expected for recovery, the financial condition of the issuer, changes in the debt securities’ ratings and other qualitative factors, as well as whether the Company either plans to sell the debt security or it is more-likely-than-not that it will be required to sell the debt security before recovery of the amortized cost. When the Company does not intend to sell the impaired debt security and it is more-likely-than-not that the Company will not be required to sell the impaired debt security prior to recovery of its amortized cost basis, the credit component of an OTTI of the impaired debt security is recognized as OTTI loss on the Consolidated Statement of Income and the non-credit component is recognized in other comprehensive income. This applies for both AFS and held-to-maturity investment securities. If the Company intends to sell the impaired debt security or it is more-likely-than-not that the Company will be required to sell the impaired debt security prior to recovery of its amortized cost basis, the full amount of the impairment loss (equal to the difference between the debt security’s amortized cost basis and its fair value at the balance sheet date) is recognized as OTTI loss on the Consolidated Statement of Income. Following the recognition of OTTI, the debt security’s new amortized cost basis is the previous basis minus the OTTI amount recognized in earnings.

Marketable equity securities that have readily determinable fair values are recorded at fair value with unrealized gains and losses, due to changes in fair value, reflected in earnings. Marketable equity securities include mutual fund investments are included in Investments in tax credit and other investments, net on the Consolidated Balance Sheet. Nonmarketable equity securities that do not have readily determinable fair values, exclude investments for which we hold a controlling interest in the investee. Nonmarketable equity securities include tax credit investments that are included in Investments in tax credit and other investments, net, and Other assets on the Consolidated Balance Sheet. These securities are accounted for under one of the following accounting methods:

• Equity Method — When we have the ability to exert significant influence over the investee.

• Cost Method — The cost method is applied to investments such as FRB and FHLB stock. These investments are held at their cost minus impairment. If impaired, the carrying value is written down to the fair value of the security.

• Measurement Alternative — This method is applied to all remaining nonmarketable equity securities. These securities are carried at cost less impairment, and adjusted for changes in fair value upon the occurrence of orderly observable transactions of the same or similar security of the same issuer.

Our review for impairment for equity method, cost method and measurement alternative securities typically includes an analysis of the facts and circumstances of each security, the intent or requirement to sell the security, the expectations of cash flows, capital needs and the viability of its business model. For equity method and cost method investments, we reduce the asset’s carrying value when we consider declines in value to be OTTI. For securities accounted for under the measurement alternative, we reduce the asset value when the fair value is less than the carrying value, without the consideration of recovery. For additional information on the Company’s OTTI evaluation, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements.

Restricted equity securities include FRB and FHLB stock. The FRB stock is required by law to be held as a condition of membership in the Federal Reserve System. The FHLB stock is required to obtain advances from the FHLB. They are carried at cost as they do not have a readily determinable fair value.

Loans Held-for-Sale — Loans are initially classified as loans held-for-sale when they are individually identified as being available for immediate sale and management has committed to a formal plan to sell them. Loans held-for-sale are carried at lower of cost or fair value. Subject to periodic review under the Company’s evaluation process, including asset/liability and credit risk management, the Company may transfer certain loans from held-for-investment to held-for-sale measured at lower of cost or fair value. Any write-downs in the carrying amount of the loan at the date of transfer is recorded as a charge-off to allowance for loan losses. Loan origination fees on loans held-for-sale, net of certain costs in processing and closing the loans, are deferred until the time of sale and are included in the periodic determination of the lower of cost or fair value adjustments and/or the gain or loss recognized at the time of sale. A valuation allowance is established if the fair value of such loans is lower than their cost, with a corresponding charge to noninterest income. If the loan or a portion of the loan cannot be sold, it is subsequently transferred back to the loans held-for-investment portfolio from the loans held-for-sale portfolio at the lower of cost or fair value on the transfer date.

Loans Held-for-Investment — At the time of commitment to originate or purchase a loan, the loan is determined to be held-for-investment if it is the Company’s intent to hold the loan to maturity or for the “foreseeable future”. Loans held-for-investment are stated at their outstanding principal, reduced by an allowance for loan losses and net of deferred loan fees or costs, or unearned fees on originated loans, net of unamortized premiums or unaccreted discounts on purchased loans. Nonrefundable fees and direct costs associated with the origination or purchase of loans are deferred and netted against outstanding loan balances. The deferred net loan fees and costs are recognized in interest income as an adjustment to yield over the loan term using the effective interest method or straight-line method. Discounts/premiums on purchased loans are accreted/amortized to interest income using the effective interest method or straight-line method over the remaining period to contractual maturity. Interest on loans is calculated using the simple-interest method on daily balances of the principal amounts outstanding. Generally, loans are placed on nonaccrual status when they become 90 days past due or more. Loans are considered past due when contractually required principal or interest payments have not been made on the due dates. Loans are also placed on nonaccrual status when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that full collection of principal or interest becomes uncertain, regardless of the length of past due status. Once a loan is placed on nonaccrual status, interest accrual is discontinued and all unpaid accrued interest is reversed against interest income. Interest payments received on nonaccrual loans are reflected as a reduction of principal and not as interest income. A loan is returned to accrual status when the borrower has demonstrated a satisfactory payment trend subject to management’s assessment of the borrower’s ability to repay the loan.

Troubled Debt Restructurings — A loan is classified as a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. The concessions may be granted in various forms, including a below-market change in the stated interest rate, a reduction in the loan balance or accrued interest, an extension of the maturity date with a stated interest rate lower than the current market rate or note splits referred to as A/B note restructurings. Loans with contractual terms that have been modified as a TDR and are current at the time of restructuring may remain on accrual status if there is demonstrated performance prior to the restructuring and payment in full under the restructured terms is expected. Otherwise, these loans are placed on nonaccrual status and are reported as nonperforming, until the borrower demonstrates a sustained period of performance, generally six months, and the ability to repay the loan according to the contractual terms. If accruing TDRs cease to perform in accordance with their modified contractual terms, they are placed on nonaccrual status and reported as nonperforming TDRs. TDRs are included in the impaired loan quarterly valuation allowance process. Refer to Impaired Loans below for a complete discussion.

Impaired Loans — Impaired loans are identified and evaluated for impairment on an individual basis. The Company’s impaired loans include predominantly loans held-for-investment on nonaccrual status or modified as a TDR designated either as performing or nonperforming, excluding purchased credit-impaired (“PCI”) loans. A loan is considered impaired when, based on current information and events, it is probable that the Company will not be able to collect all scheduled payments of principal or interest due in accordance with the original contractual terms of the loan agreement. Factors considered by management in determining and measuring loan impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of and the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed.

Impaired loans are measured based on the present value of expected future cash flows discounted at a designated discount rate or, as appropriate, at the loan’s observable market price or the fair value of the collateral, if the loan is collateral dependent, less cost to sell. When the value of an impaired loan is less than the recorded investment and the loan is classified as nonperforming and uncollectible, the deficiency is charged off against the allowance for loan losses. If the loan is a performing TDR, the deficiency is included in the specific reserves of the allowance for loan losses, as appropriate. Payments received on impaired loans classified as nonperforming are not recognized in interest income, but are applied as a reduction to the principal outstanding.

Allowance for Credit Losses — The allowance for credit losses (“ACL”) consists of the allowance for loan losses and unfunded credit commitments. The allowance for unfunded credit commitments include reserves provided for unfunded lending commitments, standby letters of credit (“SBLCs”) and recourse obligations for loans sold. The allowance for loan losses is established as management’s estimate of probable losses inherent in the Company’s lending activities. The allowance for loan losses is increased by the provision for loan losses and decreased by net charge-offs when management believes that the uncollectability of a loan is probable. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated quarterly by management based on periodic review of the collectability of the loans.

The allowance for loan losses on non-PCI loans consists of specific and general reserves. The Company’s non-PCI loans fall into heterogeneous and homogeneous categories. Impaired loans are subject to specific reserves. Non-impaired loans are evaluated as part of the general reserve. General reserves are calculated by utilizing both quantitative and qualitative factors. There are different qualitative risks for the loans in each portfolio segment. Predominant risk characteristics of the commercial real estate (“CRE”), multifamily, single-family residential loans and home equity lines of credit (“HELOC”) loans consider the collateral and geographic locations of the properties collateralizing the loans. Predominant risk characteristics of the commercial and industrial (“C&I”) loans include cash flows, debt service and collateral of the borrowers and guarantors, as well as the economic and market conditions.

The Company also maintains an allowance for loan losses on PCI loans when there is deterioration in credit quality subsequent to acquisition. Based on the Company’s estimates of cash flows expected to be collected, the Company establishes an allowance for the PCI loans, with a charge to Provision for credit losses on the Consolidated Statement of Income.

When a loan is determined uncollectible, it is the Company’s policy to promptly charge off the difference between the recorded investment balance of the loan and either the fair value of the collateral or the discounted value of expected cash flows. Recoveries are recorded when payment is received on loans that were previously charged off through the allowance for loan losses. Allocation of a portion of the allowance to one segment of the loan portfolio does not preclude its availability to absorb losses in other segments.

The allowance for unfunded credit commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded credit facilities. The determination of the adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities, including an assessment of the probability of commitment usage, credit risk factors for loans outstanding, and the terms and expiration dates of the unfunded credit facilities.

The allowance for loan losses is reported separately on the Consolidated Balance Sheet, whereas the allowance for unfunded credit commitments is included in Accrued expenses and other liabilities on the Consolidated Balance Sheet. The Provision for credit losses is reported on the Consolidated Statement of Income.

Purchased Credit-Impaired Loans — Acquired loans are recorded at fair value as of acquisition date in accordance with ASC 805, Business Combinations. A purchased loan is deemed to be credit impaired when there is evidence of credit deterioration since its origination and it is probable at the acquisition date that the Company would be unable to collect all contractually required payments and is accounted for under ASC 310-30, Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality. Under ASC 310-30, loans are recorded at fair value at acquisition date, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded as of the acquisition date.

The excess of cash flows expected to be collected over the initial investment in the loan represents the “accretable yield,” which is recognized as interest income on a level yield basis over the life of the loan. The excess of total contractual cash flows over the cash flows expected to be received at origination is deemed the “nonaccretable difference.” In estimating the nonaccretable difference, the Company (a) calculates the contractual amount and timing of undiscounted principal and interest payments (the “undiscounted contractual cash flows”) and (b) estimates the amount and timing of undiscounted expected principal and interest payments (the “undiscounted expected cash flows”). The cash flows expected over the life of the pools are estimated by an internal cash flows model that projects cash flows and calculates the carrying values of the pools, book yields, effective interest income and impairment, if any, based on pool level events. Assumptions such as cumulative loss rates, loss curves and prepayment speeds are utilized to calculate the expected cash flows. Subsequent to the acquisition date, based on the quarterly evaluations of remaining cash flows from principal and interest payments expected to be collected, any increases in expected cash flows over the expected cash flows at purchase date in excess of fair value that are significant and probable are adjusted through the accretable yield on a prospective basis. Any subsequent decreases in expected cash flows over the expected cash flows at purchase date that are probable are recognized by a charge to the provision for loan losses. Any disposals of loans, including sales of loans, payments in full or foreclosures, result in the removal of the loan from the ASC 310-30 portfolio at the carrying amount.

Variable Interest and Voting Interest Entities — The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity (“VIE”). We first determine whether or not we have variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that we do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. A VIE is an entity that lacks equity investors or whose equity investors do not have a controlling financial interest in the entity through their equity investments. The Company consolidates a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For entities that do not meet the definition of a VIE, the entity is considered a voting interest entity. We consolidate these entities if we can exert control over the financial and operating policies of an investee, which can occur if we have a 50% or more voting interest in the entity.

Investments in Qualified Affordable Housing Partnerships, Net, Tax Credit and Other Investments, Net — The Company records the investments in qualified affordable housing partnerships, net, using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the amortization in Income tax expense on the Consolidated Statement of Income.

The Company records investments in tax credit and other investments, net, using either the equity method or cost method of accounting. The tax credits are recognized on the Consolidated Financial Statements to the extent they are utilized on the Company’s income tax returns in the year the credit arises under the flow-through method of accounting. The investments are reviewed for impairment on an annual basis or on an interim basis, if an event occurs that would trigger potential impairment.

Premises and Equipment, Net — The Company’s premises and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are computed based on the straight-line method over the estimated useful lives of the various classes of assets. The ranges of estimated useful lives for the principal classes of assets are as follows:

Premises and Equipment	Useful Lives
Buildings	25 years
Furniture, fixtures and equipment, building improvements	3 to 7 years
Leasehold improvements	Term of lease or useful life, whichever is shorter

The Company reviews its long-lived assets for impairment annually, or when events or changes in circumstances indicate that the carrying amounts of these assets may not be recoverable. An asset is considered impaired when the fair value, which is the expected undiscounted cash flows over the remaining useful life, is less than the net book value. The excess of the net book value over its fair value is charged as impairment loss to noninterest expense.

Goodwill and Other Intangible Assets — Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. Goodwill is not amortized, but is tested for impairment on an annual basis or more frequently as events occur or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value. Other intangible assets are primarily comprised of core deposit intangibles. Core deposit intangibles, which represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions, are amortized over the projected useful lives of the deposits, which is typically 8 to 15 years. Core deposit intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant. Impairment on goodwill and core deposit intangibles is recognized by writing down the asset as a charge to noninterest expense to the extent that the carrying value exceeds the estimated fair value.

Derivatives — As part of its asset and liability management strategy, the Company uses derivative financial instruments to mitigate exposure to interest rate and foreign currency risks, and to assist customers with their risk management objectives.  Derivatives utilized by the Company include primarily swaps, forwards and option contracts.  Derivative instruments are included in Other assets or Accrued expenses and other liabilities on the Consolidated Balance Sheet at fair value. The related cash flows are recognized on the Cash flows from operating activities section on the Consolidated Statement of Cash Flows. The Company uses its accounting hedges based on the exposure being hedged as either fair value hedges or hedges of the net investments in certain foreign operations. For fair value hedges of interest rate risk, changes in fair value of derivatives are reported in Interest expense on the Consolidated Statement of Income. Changes in fair value of derivatives designated as hedges of the net investments in foreign operations are recorded as a component of AOCI.

All derivatives designated as fair value hedges and hedges of the net investments in certain foreign operations are linked to specific hedged items or to groups of specific assets and liabilities on the Consolidated Balance Sheet. To qualify as an accounting hedge under the hedge accounting rules (versus an economic hedge where hedge accounting is not sought), a derivative must be highly effective in offsetting the risk designated as being hedged. The Company formally documents its hedging relationships at inception, including the identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction at the time the derivative contract is executed. Subsequent to inception, on a quarterly basis, the Company assesses whether the derivatives used in hedging transactions are highly effective in offsetting changes in the fair value of the hedged items. Retrospective effectiveness is also assessed, as well as the continued expectation that the hedge will remain effective prospectively.

The Company discontinues hedge accounting prospectively when (i) a derivative is no longer highly effective in offsetting changes in fair value; (ii) a derivative expires, or is sold, terminated or exercised, or (iii) the Company determines that designation of a derivative as a hedge is no longer appropriate.  If a fair value hedge is discontinued, the derivative will continue to be recorded on the Consolidated Balance Sheet at fair value with changes in fair value recognized on the Consolidated Statement of Income. When the hedged net investment is either sold or substantially liquidated, changes in the fair value of the derivatives are reclassified out of AOCI into Foreign exchange income on the Consolidated Statement of Income.

The Company also offers various interest rate, foreign currency, and energy commodity derivative products to customers. These transactions are not linked to specific assets or liabilities on the Consolidated Balance Sheet or to forecasted transactions in a hedging relationship and, therefore, do not qualify for hedge accounting. These contracts are recorded at fair value with changes in fair value recorded on the Consolidated Statement of Income.

As part of the Company’s loan origination process, from time to time, the Company obtains equity warrants to purchase preferred and/or common stock of public or private companies it provides loans to. These equity warrants are accounted for as derivatives and recorded at fair value included in Other assets on the Consolidated Balance Sheet with changes in fair value recorded on the Consolidated Statement of Income.

The Company is exposed to counterparty credit risk, which is the risk that counterparties to the derivative contracts do not perform as expected. Valuation of derivative assets and liabilities reflect the value of the instrument inclusive of the non-performance risk. The Company uses master netting arrangements to mitigate counterparty credit risk in derivative transactions. To the extent the derivatives are subject to master netting arrangements, the Company takes into account the impact of master netting arrangements that allow the Company to settle all derivative contracts executed with the same counterparty on a net basis, and to offset the net derivative position with the related cash collateral and securities. The Company elected to offset derivative transactions with the same counterparty on the Consolidated Balance Sheet when a derivative transaction has a legally enforceable master netting arrangement and when it is eligible for netting under ASC 210-20-45-1, Balance Sheet Offsetting: Netting Derivative Positions on Balance Sheet. Derivative balances and related cash collateral are presented net on the Consolidated Balance Sheet. In addition, the Company applied the Settlement to Market treatment for the cash collateralizing our interest rate and commodity contracts with certain centrally cleared counterparties. As a result, derivative balances with these counterparties are considered settled by the collateral.

Fair Value — Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date and, in many cases, requires management to make a number of significant judgments. Fair value measurements are based on the exit price notion and are determined by maximizing the use of observable inputs. However, for certain instruments, we must utilize unobservable inputs in determining fair value due to the lack of observable inputs in the market, which requires greater judgment in the measurement of fair value. Based on the inputs used in the valuation techniques, the Company classifies its assets and liabilities measured and disclosed at fair value in accordance with a three-level hierarchy (i.e., Level 1, Level 2 and Level 3) established under ASC 820, Fair Value Measurements. The Company records certain financial instruments, such as AFS investment securities, and derivative assets and liabilities, at fair value on a recurring basis. Certain financial instruments, such as impaired loans and loans held-for-sale, are not carried at fair value each period but may require nonrecurring fair value adjustments due to lower-of-cost-or-market accounting or write-downs of individual assets. For additional information on fair value, see Note 3 — Fair Value Measurement and Fair Value of Financial Instruments to the Consolidated Financial Statements in this Form 10-K.

Stock-Based Compensation — The Company issues stock-based awards to eligible employees, officers and directors, and accounts for the related costs in accordance with the provisions of ASC 505, Equity and ASC 718, Compensation — Stock Compensation. Stock-based compensation cost is measured at the grant date based on the fair value of the awards and expensed over the employee’s requisite service period.

The Company grants restricted stock units (“RSUs”), which include service conditions for vesting. Additionally, some of the Company’s RSUs contain performance goals and market conditions that are required to be met in order for the awards to vest. RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. RSUs are authorized to settle predominantly in shares of the Company’s common stock. Compensation cost for those awards is based on quoted market price of the Company’s common stock at the grant date. Certain RSUs will be settled in cash, which subjects these RSUs to variable accounting whereby the compensation cost is adjusted to fair value based on changes in the Company’s stock price up to the settlement date. Compensation cost is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award. Effective January 1, 2017, the Company prospectively adopted ASU 2016-09, Compensation — Stock Compensation (Topic 718): Improvement to Employee Share-Based Payment Accounting. As a result of its adoption, all excess tax benefits and deficiencies on share-based payment awards are recognized within Income tax expense on the Consolidated Statement of Income. Before 2017, the tax benefits were recorded as increases to Additional paid-in capital on the Consolidated Balance Sheet.

For time-based RSUs, the grant-date fair value is measured at the fair value of the Company’s common stock as if the RSUs are vested and issued on the date of grant. For performance-based RSUs, the grant-date fair value considers both performance and market conditions. As stock-based compensation expense is estimated based on awards ultimately expected to vest, it is reduced by the expense related to awards expected to be forfeited. Forfeitures are estimated at the time of grant and are updated quarterly. If the estimated forfeitures are revised, a cumulative effect of changes in estimated forfeitures for the current and prior periods is recognized in compensation expense in the period of change. For performance-based RSUs, the compensation expense fluctuates based on the estimated outcome of meeting the performance conditions. The Company evaluates the probable outcome of the performance conditions quarterly and makes cumulative adjustments for current and prior periods in compensation expense in the period of change. Market conditions subsequent to the grant date have no impact on the amount of compensation expense the Company will recognize over the life of the award. Refer to Note 16 — Stock Compensation Plans to the Consolidated Financial Statements in this Form 10-K for additional information.

Income Taxes — The Company files consolidated federal income tax returns, foreign tax returns, and various combined and separate company state tax returns. The calculation of the Company's income tax provision and related tax accruals requires the use of estimates and judgments. Accrued income tax liabilities (assets) represent the estimated amounts due to (received from) the various taxing jurisdictions where the Company has established a business presence. Under the balance sheet method, deferred tax assets and liabilities are recognized for the expected future tax consequences of existing temporary differences between the financial reporting and tax reporting basis of assets and liabilities using enacted tax laws and rates and tax carryforwards. To the extent a deferred tax asset is no longer expected more-likely-than-not to be realized, a valuation allowance is established. See Note 14 — Income Taxes to the Consolidated Financial Statements for a discussion of management’s assessment of evidence considered by the Company in establishing a valuation allowance.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. Uncertain tax positions that meet the more-likely-than-not recognition threshold are measured to determine the amount of benefit to recognize. An uncertain tax position is measured at the largest amount of benefit that management believes has a greater than 50% likelihood of realization upon settlement. Tax benefits not meeting our realization criteria represent unrecognized tax benefits. The Company establishes a liability for potential taxes, interest and penalties related to uncertain tax positions based on facts and circumstances, including the interpretation of existing law, new judicial or regulatory guidance, and the status of tax audits.

Earnings Per Share — Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period, plus any incremental dilutive common share equivalents calculated for warrants and RSUs outstanding using the treasury stock method.

Foreign Currency Translation — The Company’s foreign subsidiary in China, East West Bank (China) Limited’s functional currency is in Chinese Renminbi (“RMB”). As a result, assets and liabilities of East West Bank (China) Limited are translated, for consolidation purpose, from its functional currency into U.S. Dollar (“USD”) using period-end spot foreign exchange rates. Revenues and expenses of East West Bank (China) Limited are translated, for the purpose of consolidation, from its functional currency into USD at the transaction date foreign exchange rates. The effects of those translation adjustments are reported in the Foreign currency translation adjustments account within Other comprehensive income (loss) on the Consolidated Statement of Comprehensive Income, net of any related hedged effects. For transactions that are denominated in a currency other than the functional currency, including transactions denominated in the local currencies of foreign operations that use the USD as their functional currency, the effects of changes in exchange rates are primarily reported on the Consolidated Statement of Income.

New Accounting Pronouncements Adopted in 2019

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2019
ASU 2016-02, Leases (Topic 842) and subsequent related ASUs	January 1, 2019 for leases standards other than ASU 2019-01 January 1, 2020 for ASU 2019-01 where early adoption is permitted.	ASC Topic 842, Leases, supersedes ASC Topic 840, Leases. This ASU requires lessees to recognize right-of-use assets and related lease liabilities for all leases with lease terms of more than 12 months on the Consolidated Balance Sheet, and provide quantitative and qualitative disclosures regarding key information about the leasing arrangements. For short-term leases with a term of 12 months or less, lessees can make a policy election not to recognize lease assets and lease liabilities. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. Lessee accounting for finance leases, as well as lessor accounting is largely unchanged. The standard may be adopted using a modified retrospective approach through a cumulative-effect adjustment. In addition, the FASB issued ASU 2018-11, Leases (Topic 842) Targeted Improvements, which provides companies the option to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year they adopt ASU 2016-02. Companies that elect this transition option can recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented.	The Company adopted all the new lease standards on January 1, 2019 using the alternative transition method, which allows the adoption of the accounting standard prospectively without revising comparable prior periods’ financial information. On January 1, 2019, the Company recognized $109.1 million and $117.7 million increase in right-of-use assets and associated lease liabilities, respectively, based on the present value of the expected remaining operating lease payments. In addition, the Company also recognized a cumulative-effect adjustment, net of tax of $10.5 million to increase beginning balance of retained earnings as of January 1, 2019 related to the deferred gains on our prior sale and leaseback transactions that occurred prior to the date of adoption. The adoption of the new leases standards did not have a material impact on the Company’s Consolidated Statement of Income. Disclosures related to leases are included in Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K.
ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes	January 1, 2019 Early adoption (including adoption in an interim period) is permitted for entities that already adopted ASU 2017-12.	This ASU amends ASC Topic 815, Derivatives and Hedging, by adding the OIS rate based on SOFR to the list of U.S. benchmark interest rates that are eligible to be hedged to facilitate the London Interbank Offered Rate (“LIBOR”) to SOFR transition. The guidance should be applied prospectively for qualifying new or redesignated hedging relationships entered into on or after the date of adoption.	The Company adopted ASU 2018-16 prospectively on January 1, 2019. The adoption of this guidance did not impact existing hedges but may impact new hedge relationships that are benchmarked against the SOFR OIS rate.

Recent Accounting Pronouncements

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2020
ASU 2016-13,  Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and subsequent related ASUs	January 1, 2020 Early adoption is permitted on January 1, 2019.	The ASU introduces a new current expected credit loss (“CECL”) impairment model that applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loan receivables, AFS and held-to-maturity debt securities, net investments in leases and off-balance sheet credit exposures. The CECL model utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted in each period for changes in expected lifetime credit losses. This ASU also expands the disclosure requirements regarding an entity’s assumptions, models and methods for estimating the allowance for loan and lease losses, and requires disclosure of the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination (i.e., by vintage year). The guidance should be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption. The new guidance also allows optional relief for certain instruments measured at amortized cost with an option to irrevocably elect the fair value option under ASC Topic 825, Financial Instruments.	The Company adopted ASU 2016-13 using a modified retrospective approach on January 1, 2020 without electing the fair value option on eligible financial instruments under ASU 2019-05. The Company has completed its implementation of the new processes and controls over the new credit and loss aggregation models, completed two parallel runs, analyzed model results, revised the qualitative framework and updated policies and disclosures. Upon adoption of the ASU, the Company‘s ACL, which includes the reserve for unfunded credit commitments, increased approximately 34% from $369.4 million as of December 31, 2019. This impact was recorded as a cumulative-effect adjustment that reduced retained earnings on January 1, 2020.  This increase in ACL was mainly driven by the Company’s C&I and CRE loan portfolios due to the capture of lifetime expected credit losses under the new guidance. There was no ACL recorded on the AFS securities portfolio upon the adoption of this guidance. The regulatory rules provide the banks with the option to elect a three-year phase-in of the “day one” impact of CECL. The Company has elected not to apply the three-year phased-in approach in its first quarter 2020’s regulatory capital calculations. Upon adoption of CECL, the Company and the Bank are well-capitalized.
ASU2017-04,  Intangibles — Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	January 1, 2020 Early adoption is permitted for interim or annual goodwill impairment tests with measurement dates after January 1, 2017.	The ASU simplifies the accounting for goodwill impairment. Under this guidance, an entity will no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, an impairment loss will be recognized when the carrying amount of a reporting unit exceeds its fair value. The guidance also eliminates the requirement to perform a qualitative assessment for any reporting units with a zero or negative carrying amount. This guidance should be applied prospectively.	The Company adopted this guidance on January 1, 2020. The Company does not expect the adoption of this guidance to have a material impact on the Company’s Consolidated Financial Statements.
ASU 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020 Early adoption is permitted.	The ASU amends ASC Topic 350-40 to align the accounting for costs incurred in a cloud computing arrangement with the guidance on developing internal use software. Specifically, if a cloud computing arrangement is deemed to be a service contract, certain implementation costs are eligible for capitalization. The new guidance prescribes the balance sheet and income statement presentation and cash flow classification for the capitalized costs and related amortization expense. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.	The Company adopted this guidance on a prospective basis on January 1, 2020. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

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Stockholders’ Equity and Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of earnings per share calculations

The following table presents the basic and diluted EPS calculations for the years ended December 31, 2019, 2018 and 2017. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Earnings per Share to the Consolidated Financial Statements.

($ and shares in thousands, except per share data)	Year Ended December 31,
	2019		2018		2017
Basic:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Basic EPS	$	4.63	$	4.86	$	3.50
Diluted:
Net income	$	674,035	$	703,701	$	505,624
Basic weighted-average number of shares outstanding	145,497		144,862		144,444
Diluted potential common shares (1)(2)	682		1,307		1,469
Diluted weighted-average number of shares outstanding (1)(2)	146,179		146,169		145,913
Diluted EPS	$	4.61	$	4.81	$	3.47

(1) Includes dilutive shares from RSUs for the year ended December 31, 2019, and from RSUs and warrants for the years ended December 31, 2018 and 2017.

(2) The Company acquired MetroCorp Bancshares, Inc. (“MetroCorp”) on January 17, 2014. Prior to the acquisition, MetroCorp had outstanding warrants to purchase 771,429 shares of its common stock. Upon the acquisition, the rights of the warrant holders were converted into the rights to acquire 230,282 shares of East West’s common stock until January 16, 2019. All warrants were exercised on January 7, 2019.

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Parent Company Condensed Financial Statements (Tables)

12 Months Ended

Dec. 31, 2019

Condensed Financial Information Disclosure [Abstract]

Condensed Balance Sheet

The following tables present the Parent Company-only condensed financial statements:

CONDENSED BALANCE SHEET

($ in thousands, except shares)	December 31,
	2019			2018
ASSETS
Cash and cash equivalents due from subsidiary bank	$	166,131		$	149,411
Investments in subsidiaries:
Bank	4,987,666			4,401,860
Nonbank	5,630			3,662
Investments in tax credit investments, net	11,637			23,259
Goodwill	150			—
Other assets	3,941			6,487
TOTAL	$	5,175,155		$	4,584,679
LIABILITIES
Long-term debt	$	147,101		$	146,835
Other liabilities	10,437			13,870
Total liabilities	157,538			160,705
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167			166
Additional paid-in capital	1,826,345			1,789,811
Retained earnings	3,689,377			3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864		)	(467,961		)
AOCI, net of tax	(18,408		)	(58,174		)
Total stockholders’ equity	5,017,617			4,423,974
TOTAL	$	5,175,155		$	4,584,679

Condensed Statement of Income

CONDENSED STATEMENT OF INCOME

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Dividends from subsidiaries:
Bank	$	190,000	$	160,000	$	255,000
Nonbank	189		175		4,118
Net gains on sales of AFS investment securities	—		—		326
Other income	425		2		395
Total income	190,614		160,177		259,839
Interest expense on long-term debt	6,482		6,488		5,429
Compensation and employee benefits	5,479		5,559		5,065
Amortization of tax credit and other investments	8,437		413		5,908
Other expense	1,487		1,490		1,257
Total expense	21,885		13,950		17,659
Income before income tax benefit and equity in undistributed income of subsidiaries	168,729		146,227		242,180
Income tax benefit	6,737		3,404		18,182
Undistributed earnings of subsidiaries, primarily bank	498,569		554,070		245,262
Net income	$	674,035	$	703,701	$	505,624

Condensed Statement of Cash Flows

CONDENSED STATEMENT OF CASH FLOWS

($ in thousands)	Year Ended December 31,
	2019			2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	674,035		$	703,701		$	505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiaries, principally bank	(498,569		)	(554,070		)	(245,262		)
Amortization expenses	8,703			671			6,158
Deferred income tax (benefit) expense	(10,132		)	3,517			940
Gains on sales of AFS investment securities	—			—			(326		)
Net change in other assets	10,246			(595		)	(3,341		)
Net change in other liabilities	(18		)	(45		)	(560		)
Net cash provided by operating activities	184,265			153,179			263,233
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments	(292		)	(1,049		)	(11,591		)
Proceeds from distributions received from equity method investees	2,577			1,491			1,814
Investments in and advances to nonbank subsidiaries	(3,314		)	—			—
Other investing activities	(157		)	—			—
AFS investment securities:
Proceeds from sales	—			—			18,326
Purchases	—			—			(9,000		)
Net cash (used in) provided by investing activities	(1,186		)	442			(451		)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt	—			(25,000		)	(15,000		)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,383			2,846			2,280
Stocks tendered for payment of withholding taxes	(14,635		)	(15,634		)	(12,940		)
Cash dividends paid	(155,107		)	(125,988		)	(116,820		)
Net cash used in financing activities	(166,359		)	(163,776		)	(142,480		)
Net increase (decrease) in cash and cash equivalents	16,720			(10,155		)	120,302
Cash and cash equivalents, beginning of year	149,411			159,566			39,264
Cash and cash equivalents, end of year	$	166,131		$	149,411		$	159,566

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Derivatives (Net Gains (Losses) on Derivatives Not Designated as Hedging Instruments) (Details) - Derivative instruments not designated as hedging instruments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	$ 20,808	$ 17,409	$ 21,969
Interest rate contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	(2,126)	280	(1,772)
Foreign exchange contracts | Foreign exchange income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	22,264	16,784	22,076
Credit contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	59	(156)	(7)
Equity warrants | Lending fees
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	678	512	1,672
Commodity contracts | Interest rate contracts and other derivative income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for derivative not designated as hedging instruments	$ (67)	$ (11)	$ 0

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Securities (Restricted Equity Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
FRB stock	$ 58,330	$ 56,819
FHLB stock	20,250	17,250
Total restricted equity securities	$ 78,580	$ 74,069

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Securities (Continuous Unrealized Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	$ 1,388,661	$ 163,128
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(18,990)	(1,518)
Available-for-sale debt securities, More than 12 Months, Fair Value	351,048	2,087,534
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(4,249)	(69,249)
Available-for-sale debt securities, Fair Value, Total	1,739,709	2,250,662
Available-for-sale debt securities, Gross Unrealized Loss, Total	(23,239)	(70,767)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	0	0
Available-for-sale debt securities, More than 12 Months, Fair Value	176,422	516,520
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(793)	(12,899)
Available-for-sale debt securities, Fair Value, Total	176,422	516,520
Available-for-sale debt securities, Gross Unrealized Loss, Total	(793)	(12,899)
U.S. government agency and U.S. government sponsored enterprise debt securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	310,349	22,755
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(4,407)	(238)
Available-for-sale debt securities, More than 12 Months, Fair Value	0	159,814
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	0	(2,456)
Available-for-sale debt securities, Fair Value, Total	310,349	182,569
Available-for-sale debt securities, Gross Unrealized Loss, Total	(4,407)	(2,694)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	204,675	26,886
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(2,346)	(245)
Available-for-sale debt securities, More than 12 Months, Fair Value	108,314	274,666
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(2,548)	(12,449)
Available-for-sale debt securities, Fair Value, Total	312,989	301,552
Available-for-sale debt securities, Gross Unrealized Loss, Total	(4,894)	(12,694)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	325,354	75,675
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(1,234)	(491)
Available-for-sale debt securities, More than 12 Months, Fair Value	34,337	653,660
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(243)	(14,061)
Available-for-sale debt securities, Fair Value, Total	359,691	729,335
Available-for-sale debt securities, Gross Unrealized Loss, Total	(1,477)	(14,552)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	31,130	9,458
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(109)	(104)
Available-for-sale debt securities, More than 12 Months, Fair Value	0	30,295
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	0	(928)
Available-for-sale debt securities, Fair Value, Total	31,130	39,753
Available-for-sale debt securities, Gross Unrealized Loss, Total	(109)	(1,032)
Non-agency commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	7,914
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(6)
Available-for-sale debt securities, More than 12 Months, Fair Value	0
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	0
Available-for-sale debt securities, Fair Value, Total	7,914
Available-for-sale debt securities, Gross Unrealized Loss, Total	(6)
Non-agency residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	42,894	3,067
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(285)	(19)
Available-for-sale debt securities, More than 12 Months, Fair Value	0	3,949
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	0	(166)
Available-for-sale debt securities, Fair Value, Total	42,894	7,016
Available-for-sale debt securities, Gross Unrealized Loss, Total	(285)	(185)
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	0	10,869
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	0	(381)
Available-for-sale debt securities, More than 12 Months, Fair Value	9,888	0
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(113)	0
Available-for-sale debt securities, Fair Value, Total	9,888	10,869
Available-for-sale debt securities, Gross Unrealized Loss, Total	(113)	(381)
Foreign bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	129,074	14,418
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(407)	(40)
Available-for-sale debt securities, More than 12 Months, Fair Value	9,900	448,630
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(100)	(26,290)
Available-for-sale debt securities, Fair Value, Total	138,974	463,048
Available-for-sale debt securities, Gross Unrealized Loss, Total	(507)	$ (26,330)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	52,565
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(902)
Available-for-sale debt securities, More than 12 Months, Fair Value	12,187
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	(452)
Available-for-sale debt securities, Fair Value, Total	64,752
Available-for-sale debt securities, Gross Unrealized Loss, Total	(1,354)
Collateralized loan obligations (“CLOs”)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale debt securities, Less than 12 Months, Fair Value	284,706
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(9,294)
Available-for-sale debt securities, More than 12 Months, Fair Value	0
Available-for-sale debt securities, Gross Unrealized Loss, More than 12 Months	0
Available-for-sale debt securities, Fair Value, Total	284,706
Available-for-sale debt securities, Gross Unrealized Loss, Total	$ (9,294)

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Derivatives (Derivatives Not Designated as Hedging Instruments - Interest Rate Contracts) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative assets - Fair value	$ 330,316	$ 107,816
Derivative liabilities - Fair Value	256,528	118,305
Derivative instruments not designated as hedging instruments
Derivative [Line Items]
Notional amount	20,540,031	15,222,341
Derivative assets - Fair value	330,316	107,816
Derivative liabilities - Fair Value	251,744	111,828
Derivative instruments not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional amount	15,489,692	11,695,499
Derivative assets - Fair value	192,883	69,818
Derivative liabilities - Fair Value	124,119	69,267
Derivative instruments not designated as hedging instruments | Financial Counterparty | Interest rate contracts
Derivative [Line Items]
Notional amount	7,750,000	5,850,000
Interest rate contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Written options
Derivative [Line Items]
Notional amount	1,003,558	931,601
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	66	492
Interest rate contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Sold collars and corridors
Derivative [Line Items]
Notional amount	490,852	429,879
Derivative assets - Fair value	1,971	1,121
Derivative liabilities - Fair Value	16	305
Interest rate contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Swaps
Derivative [Line Items]
Notional amount	6,247,667	4,482,881
Derivative assets - Fair value	187,294	41,457
Derivative liabilities - Fair Value	6,237	41,545
Interest rate contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Interest rate contracts
Derivative [Line Items]
Notional amount	7,742,077	5,844,361
Derivative assets - Fair value	189,265	42,578
Derivative liabilities - Fair Value	6,319	42,342
Interest rate contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Purchased options
Derivative [Line Items]
Notional amount	1,003,558	931,601
Derivative assets - Fair value	67	503
Derivative liabilities - Fair Value	0	0
Interest rate contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Collars and corridors
Derivative [Line Items]
Notional amount	490,852	429,879
Derivative assets - Fair value	17	308
Derivative liabilities - Fair Value	1,996	1,140
Interest rate contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Swaps
Derivative [Line Items]
Notional amount	6,253,205	4,489,658
Derivative assets - Fair value	3,534	26,429
Derivative liabilities - Fair Value	115,804	25,785
Interest rate contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Interest rate contracts
Derivative [Line Items]
Notional amount	7,747,615	5,851,138
Derivative assets - Fair value	3,618	27,240
Derivative liabilities - Fair Value	$ 117,800	$ 26,925

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Securities

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Securities

Securities

The following tables present the amortized cost, gross unrealized gains and losses, and fair value by major categories of AFS investment securities as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	177,215	$	—	$	(793	)	$	176,422
U.S. government agency and U.S. government sponsored enterprise debt securities	584,275		1,377		(4,407		)	581,245
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	599,814		8,551		(4,894		)	603,471
Residential mortgage-backed securities	998,447		6,927		(1,477		)	1,003,897
Municipal securities	101,621		790		(109		)	102,302
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	86,609		1,947		(6		)	88,550
Residential mortgage-backed securities	46,830		3		(285		)	46,548
Corporate debt securities	11,250		12		(113		)	11,149
Foreign bonds	354,481		198		(507		)	354,172
Asset-backed securities	66,106		—		(1,354		)	64,752
CLOs	294,000		—		(9,294		)	284,706
Total AFS investment securities	$	3,320,648	$	19,805	$	(23,239	)	$	3,317,214

($ in thousands)	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
AFS investment securities:
U.S. Treasury securities	$	577,561	$	153	$	(12,899	)	$	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities	219,485		382		(2,694		)	217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	420,486		811		(12,694		)	408,603
Residential mortgage-backed securities	957,219		4,026		(14,552		)	946,693
Municipal securities	82,965		87		(1,032		)	82,020
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	25,826		226		—			26,052
Residential mortgage-backed securities	10,109		7		(185		)	9,931
Corporate debt securities	11,250		—		(381		)	10,869
Foreign bonds	489,378		—		(26,330		)	463,048
Asset-backed securities	12,621		22		—			12,643
Total AFS investment securities	$	2,806,900	$	5,714	$	(70,767	)	$	2,741,847

Unrealized Losses

The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS investment securities, aggregated by investment category and the length of time that the securities have been in a continuous unrealized loss position, as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	176,422	$	(793	)	$	176,422	$	(793	)
U.S. government agency and U.S. government sponsored enterprise debt securities	310,349		(4,407		)	—		—			310,349		(4,407		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	204,675		(2,346		)	108,314		(2,548		)	312,989		(4,894		)
Residential mortgage-backed securities	325,354		(1,234		)	34,337		(243		)	359,691		(1,477		)
Municipal securities	31,130		(109		)	—		—			31,130		(109		)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities	7,914		(6		)	—		—			7,914		(6		)
Residential mortgage-backed securities	42,894		(285		)	—		—			42,894		(285		)
Corporate debt securities	—		—			9,888		(113		)	9,888		(113		)
Foreign bonds	129,074		(407		)	9,900		(100		)	138,974		(507		)
Asset-backed securities	52,565		(902		)	12,187		(452		)	64,752		(1,354		)
CLOs	284,706		(9,294		)	—		—			284,706		(9,294		)
Total AFS investment securities	$	1,388,661	$	(18,990	)	$	351,048	$	(4,249	)	$	1,739,709	$	(23,239	)

($ in thousands)	December 31, 2018
	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
AFS investment securities:
U.S. Treasury securities	$	—	$	—		$	516,520	$	(12,899	)	$	516,520	$	(12,899	)
U.S. government agency and U.S. government sponsored enterprise debt securities	22,755		(238		)	159,814		(2,456		)	182,569		(2,694		)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities	26,886		(245		)	274,666		(12,449		)	301,552		(12,694		)
Residential mortgage-backed securities	75,675		(491		)	653,660		(14,061		)	729,335		(14,552		)
Municipal securities	9,458		(104		)	30,295		(928		)	39,753		(1,032		)
Non-agency mortgage-backed securities:
Residential mortgage-backed securities	3,067		(19		)	3,949		(166		)	7,016		(185		)
Corporate debt securities	10,869		(381		)	—		—			10,869		(381		)
Foreign bonds	14,418		(40		)	448,630		(26,290		)	463,048		(26,330		)
Total AFS investment securities	$	163,128	$	(1,518	)	$	2,087,534	$	(69,249	)	$	2,250,662	$	(70,767	)

Other-Than-Temporary Impairment

For each reporting period, the Company assesses individual securities that are in an unrealized loss position for OTTI.  For a discussion of the factors and criteria the Company uses in analyzing securities for OTTI, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Securities to the Consolidated Financial Statements in this Form 10-K.

The unrealized losses were primarily attributable to the movement in the yield curve, in addition to widened liquidity and credit spreads. The issuers of these securities have not, to the Company’s knowledge, established any cause for default on these securities. These securities have fluctuated in value since their purchase dates because of changes in market interest rates. The Company believes that the gross unrealized losses presented in the previous tables are temporary and no credit losses are expected. As a result, the Company expects to recover the entire amortized cost basis of these securities. The Company has the intent to hold these securities through the anticipated recovery period and it is not more-likely-than-not that the Company will have to sell these securities before recovery of their amortized cost. As of December 31, 2019, the Company had 101 AFS investment securities in a gross unrealized loss position with no credit impairment, primarily consisting of three CLOs, 57 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities and 14 U.S. government agency and U.S. government sponsored enterprise debt securities. In comparison, as of December 31, 2018, the Company had 184 AFS investment securities in a gross unrealized loss position with no credit impairment, primarily consisting of 108 U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities, 16 foreign bonds and 19 U.S. Treasury securities. There were no OTTI credit losses recognized for the years ended December 31, 2019, 2018 and 2017.

Realized Gains and Losses

The following table presents the proceeds, gross realized gains and losses, and tax expense related to the sales of AFS investment securities for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Proceeds from sales	$	627,110	$	364,270	$	832,844
Gross realized gains	$	3,930	$	2,535	$	8,037
Related tax expense	$	1,162	$	749	$	3,380

Contractual Maturities of Investment Securities

The following table presents the contractual maturities of AFS investment securities as of December 31, 2019:

($ in thousands)	Amortized Cost		Fair Value
Due within one year	$	721,607	$	719,179
Due after one year through five years	395,468		392,891
Due after five years through ten years	143,029		145,901
Due after ten years	2,060,544		2,059,243
Total AFS investment securities	$	3,320,648	$	3,317,214

Actual maturities of mortgage-backed securities can differ from contractual maturities as the borrowers have the right to prepay obligations. In addition, factors such as prepayments and interest rates may affect the yields on the carrying values of mortgage-backed securities.

As of December 31, 2019 and 2018, AFS investment securities with fair value of $479.4 million and $435.8 million, respectively, were primarily pledged to secure public deposits, repurchase agreements and for other purposes required or permitted by law.

Restricted Equity Securities

The following table presents the restricted equity securities included in Other Assets on the Consolidated Balance Sheet as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
FRB stock	$	58,330	$	56,819
FHLB stock	20,250		17,250
Total restricted equity securities	$	78,580	$	74,069

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Leases (Balance Sheet Classification) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 99,973
Total lease assets	107,870
Operating lease liabilities	108,083
Finance lease liabilities	5,169
Total lease liabilities	113,252
Operating lease right-of use assets
Lessee, Lease, Description [Line Items]
Operating lease assets	99,973
Premises and equipment
Lessee, Lease, Description [Line Items]
Finance lease assets	7,897
Operating lease liabilities
Lessee, Lease, Description [Line Items]
Operating lease liabilities	108,083
Long-term debt and finance lease liabilities
Lessee, Lease, Description [Line Items]
Finance lease liabilities	$ 5,169

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Leases (Schedule of Net Investment and Lease Income of Direct Financing and Sales-Type Leases) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Direct Financing and Sales-Type Leases:
Lease receivables	$ 126,517
Unguaranteed residual assets	14,793
Net investment in direct financing and sales-type leases	141,310
Direct financing and sales-type lease income	$ 5,900

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Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

Goodwill

Total goodwill was $465.7 million and $465.5 million as of December 31, 2019 and 2018, respectively. Goodwill represents the excess of the purchase price over the fair value of net assets acquired in an acquisition. The Company assesses goodwill for impairment at the reporting unit level (at the same level as the Company’s business segments) on an annual basis as of December 31 each year, or more frequently if events or circumstances, such as adverse changes in the economic or business environment, indicate there may be impairment. The Company organizes its operation into three reporting segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. For information on how the reporting units are identified and components are aggregated, see Note 21 — Business Segments to the Consolidated Financial Statements in this Form 10-K.

There was no change in the carrying amount of goodwill during the year ended December 31, 2017. The following table presents changes in the carrying amount of goodwill by reporting unit during years ended December 31, 2019 and 2018:

($ in thousands)	Consumer and Business Banking			Commercial Banking		Total
Balance, January 1, 2018	$	357,207		$	112,226	$	469,433
Disposition of the DCB branches	(3,886		)	—		(3,886		)
Balance, December 31, 2018	$	353,321		$	112,226	$	465,547
Balance, January 1, 2019	$	353,321		$	112,226	$	465,547
Acquisition of Enstream Capital Markets, LLC	—			150		150
Balance, December 31, 2019	$	353,321		$	112,376	$	465,697

Impairment Analysis

The Company conducts a two-step goodwill impairment test at the reporting unit level on an annual basis, or more frequently as events occur or circumstances that change the economic or business environment that may reduce the fair value of a reporting unit below carrying amount. For the two-step goodwill impairment test, the first step is to identify potential impairment by determining the fair value of each reporting unit and comparing such fair value to its corresponding carrying amount. If the fair value of a reporting unit is less than its carrying amount, the second step is performed to measure the amount of impairment loss, if any, by comparing the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss shall be recognized in an amount equal to that excess. The loss recognized cannot exceed the carrying amount of goodwill.

The Company completed the quantitative step one analysis of goodwill impairment test as of December 31, 2019 using a combined income and market approach to determine the fair value of the reporting units. Under the income approach, the Company projected future cash flows based on appropriate growth expectation and used appropriate discount rate assumption to calculate the discounted cash flows and the present value of the reporting units. Under the market approach, the fair value was calculated using price multiples of relevant peer banks with a control premium adjustment, which represents the cost savings that a purchaser of the reporting units could be achieved by eliminating duplicative costs. Under the combined income and market approach, the Company applied weighted average to determine the fair value of each reporting unit. As a result of this analysis, the Company determined that there was no goodwill impairment as of December 31, 2019 as the fair value of all reporting units exceeded the carrying amount of their respective reporting unit.

Core Deposit Intangibles

Core deposit intangibles represent the intangible value of depositor relationships resulting from deposit liabilities assumed in various acquisitions and are included in Other assets on the Consolidated Balance Sheet. These intangibles are tested for impairment on an annual basis, or more frequently as events occur or current circumstances and conditions warrant. Core deposit intangibles associated with the sale of the Bank’s DCB branches with a net carrying amount of $1.0 million were written off in the first quarter of 2018. There were no impairment write-downs on the remaining core deposit intangibles for the years ended December 31, 2019, 2018 and 2017.

The following table presents the gross carrying amount of core deposit intangible assets and accumulated amortization as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019			2018
Gross balance (1)	$	86,099		$	86,099
Accumulated amortization (1)	(76,088		)	(71,570		)
Net carrying balance (1)	$	10,011		$	14,529

(1) Excludes fully amortized core deposit intangible assets.

Amortization Expense

The Company amortizes the core deposit intangibles based on the projected useful lives of the related deposits. The amortization expense related to the core deposit intangible assets was $4.5 million, $5.5 million and $6.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.

The following table presents the estimated future amortization expense of core deposit intangibles as of December 31, 2019:

($ in thousands)	Amount
2020	$	3,634
2021	2,749
2022	1,865
2023	1,199
2024	553
Thereafter	11
Total	$	10,011

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Stockholders’ Equity and Earnings Per Share (Earnings Per Share Calculations) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 17, 2014	Jan. 16, 2014
Basic:
Net income									$ 674,035	$ 703,701	$ 505,624
Basic weighted average common shares outstanding (in shares)	145,624,000	145,559,000	145,546,000	145,256,000	144,960,000	144,921,000	144,899,000	144,664,000	145,497,000	144,862,000	144,444,000
Basic EPS (in dollars per share)	$ 1.29	$ 1.18	$ 1.03	$ 1.13	$ 1.19	$ 1.18	$ 1.19	$ 1.29	$ 4.63	$ 4.86	$ 3.50
Diluted:
Net income									$ 674,035	$ 703,701	$ 505,624
Basic weighted average common shares outstanding (in shares)	145,624,000	145,559,000	145,546,000	145,256,000	144,960,000	144,921,000	144,899,000	144,664,000	145,497,000	144,862,000	144,444,000
Diluted potential common shares (in shares)									682,000	1,307,000	1,469,000
Diluted weighted average common shares outstanding (in shares)	146,318,000	146,120,000	146,052,000	145,921,000	146,133,000	146,173,000	146,091,000	145,939,000	146,179,000	146,169,000	145,913,000
Diluted EPS (in dollars per share)	$ 1.29	$ 1.17	$ 1.03	$ 1.12	$ 1.18	$ 1.17	$ 1.18	$ 1.28	$ 4.61	$ 4.81	$ 3.47
Common Stock
Class of Stock
Shares of common stock into which the warrant may be converted (in shares)												230,282
MetroCorp | MetroCorp
Class of Stock
Shares of common stock into which the warrant may be converted (in shares)													771,429

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Derivatives (Tables)

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of notional and fair values of derivatives

The following table presents the total notional amounts and gross fair values of the Company’s derivatives, as well as the balance sheet netting adjustments on an aggregate basis as of December 31, 2019 and 2018. The derivative assets and liabilities are presented on a gross basis prior to the application of bilateral collateral and master netting agreements, but after the variation margin payments with central clearing organizations have been applied as settlement, as applicable. Total derivative assets and liabilities are adjusted to take into consideration the effects of legally enforceable master netting agreements and cash collateral received or paid as of December 31, 2019 and 2018. The resulting net derivative asset and liability fair values are included in Other assets and Accrued expenses and other liabilities, respectively, on the Consolidated Balance Sheet.

($ in thousands)	December 31, 2019									December 31, 2018
	Notional Amount			Fair Value						Notional Amount			Fair Value
				Derivative Assets			Derivative Liabilities						Derivative Assets			Derivative Liabilities
Derivatives designated as hedging instruments:
Fair value hedges:
Interest rate contracts	$	31,026		$	—		$	3,198		$	35,811		$	—		$	5,866
Net investment hedges:
Foreign exchange contracts	86,167			—			1,586			90,245			—			611
Total derivatives designated as hedging instruments	$	117,193		$	—		$	4,784		$	126,056		$	—		$	6,477
Derivatives not designated as hedging instruments:
Interest rate contracts	$	15,489,692		$	192,883		$	124,119		$	11,695,499		$	69,818		$	69,267
Foreign exchange contracts	4,839,661			54,637			47,024			3,407,522			21,624			19,329
Credit contracts	210,678			2			84			119,320			1			164
Equity contracts	—		(1)	1,414			—			—		(1)	1,951			—
Commodity contracts	—		(2)	81,380			80,517			—		(2)	14,422			23,068
Total derivatives not designated as hedging instruments	$	20,540,031		$	330,316		$	251,744		$	15,222,341		$	107,816		$	111,828
Gross derivative assets/liabilities				$	330,316		$	256,528					$	107,816		$	118,305
Less: Master netting agreements				(121,561		)	(121,561		)				(31,569		)	(31,569		)
Less: Cash collateral received/paid				(3,758		)	(38,238		)				(13,577		)	(6,833		)
Net derivative assets/liabilities				$	204,997		$	96,729					$	62,670		$	79,903

(1) The Company held equity contracts in three public companies and 18 private companies as of December 31, 2019. In comparison, the Company held equity contracts in four public companies and 18 private companies as of December 31, 2018.

(2) The notional amount of the Company’s commodity contracts entered with its customers totaled 7,811 thousand barrels of crude oil and 63,773 thousand units of natural gas, measured in million British thermal units (“MMBTUs”) as of December 31, 2019. In comparison, the notional amount of the Company’s commodity contracts entered with its customers totaled 2,507 thousand of crude oil and 14,722 thousand MMBTUs of natural gas as of December 31, 2018. The Company simultaneously entered into the offsetting commodity contracts with mirrored terms with third-party financial institutions.

The following table presents the notional amounts and fair values of the commodity derivative positions outstanding as of December 31, 2019 and 2018.

($ and units in thousands)	December 31, 2019
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	36	Barrels	$	—	$	30	Purchased options	36	Barrels	$	29	$	—
Collars	3,174	Barrels	2,673		538		Collars	3,630	Barrels	677		2,815
Swaps	4,601	Barrels	6,949		5,531		Swaps	4,721	Barrels	4,516		5,215
Total	7,811		$	9,622	$	6,099	Total	8,387		$	5,222	$	8,030
Natural gas:							Natural gas:
Written options	540	MMBTUs	$	—	$	22	Purchased options	530	MMBTUs	$	21	$	—
Collars	14,277	MMBTUs	186		522		Collars	14,517	MMBTUs	471		150
Swaps	48,956	MMBTUs	30,257		35,497		Swaps	48,779	MMBTUs	35,601		30,197
Total	63,773		$	30,443	$	36,041	Total	63,826		$	36,093	$	30,347
Total			$	40,065	$	42,140	Total			$	41,315	$	38,377

($ and units in thousands)	December 31, 2018
	Customer Counterparty						($ and units in thousands)	Financial Counterparty
	Notional Unit		Fair Value					Notional Unit		Fair Value
			Assets		Liabilities					Assets		Liabilities
Crude oil:							Crude oil:
Written options	524	Barrels	$	—	$	2,628	Purchased options	524	Barrels	$	2,251	$	—
Collars	872	Barrels	—		3,772		Collars	872	Barrels	3,225		—
Swaps	1,111	Barrels	—		14,278		Swaps	1,111	Barrels	5,799		—
Total	2,507		$	—	$	20,678	Total	2,507		$	11,275	$	—
Natural gas:							Natural gas:
Collars	3,063	MMBTUs	$	78	$	152	Collars	3,063	MMBTUs	$	151	$	64
Swaps	11,659	MMBTUs	1,049		1,857		Swaps	11,659	MMBTUs	1,869		317
Total	14,722		$	1,127	$	2,009	Total	14,722		$	2,020	$	381
Total			$	1,127	$	22,687	Total			$	13,295	$	381

The following table presents the notional amounts and the gross fair values of RPAs sold and purchased outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019						December 31, 2018
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Assets		Liabilities				Assets		Liabilities
RPAs - protection sold	$	199,964	$	—	$	84	$	108,606	$	—	$	164
RPAs - protection purchased	10,714		2		—		10,714		1		—
Total RPAs	$	210,678	$	2	$	84	$	119,320	$	1	$	164

The following tables present the notional amounts and the gross fair values of foreign exchange derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	3,581,036	$	45,911	$	40,591	Forwards and spot	$	207,492	$	1,400	$	507
Swaps	6,889		16		84		Swaps	702,391		6,156		4,712
Written options	87,036		127		—		Purchased options	87,036		—		127
Collars	2,244		—		14		Collars	165,537		1,027		989
Total	$	3,677,205	$	46,054	$	40,689	Total	$	1,162,456	$	8,583	$	6,335

($ in thousands)	December 31, 2018
	Customer Counterparty						Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities		($ in thousands)			Assets		Liabilities
Forwards and spot	$	2,023,425	$	11,719	$	13,079	Forwards and spot	$	506,342	$	3,407	$	2,285
Swaps	21,108		348		243		Swaps	687,845		5,764		3,336
Written options	537		16		—		Purchased options	537		—		16
Collars	83,864		—		370		Collars	83,864		370		—
Total	$	2,128,934	$	12,083	$	13,692	Total	$	1,278,588	$	9,541	$	5,637

The following tables present the notional amounts and the gross fair values of interest rate derivative contracts outstanding as of December 31, 2019 and 2018:

($ in thousands)	December 31, 2019
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	1,003,558	$	—	$	66	Purchased options	$	1,003,558	$	67	$	—
Sold collars and corridors	490,852		1,971		16		Collars and corridors	490,852		17		1,996
Swaps	6,247,667		187,294		6,237		Swaps	6,253,205		3,534		115,804
Total	$	7,742,077	$	189,265	$	6,319	Total	$	7,747,615	$	3,618	$	117,800

($ in thousands)	December 31, 2018
	Customer Counterparty						($ in thousands)	Financial Counterparty
	Notional Amount		Fair Value					Notional Amount		Fair Value
			Assets		Liabilities					Assets		Liabilities
Written options	$	931,601	$	—	$	492	Purchased options	$	931,601	$	503	$	—
Sold collars and corridors	429,879		1,121		305		Collars and corridors	429,879		308		1,140
Swaps	4,482,881		41,457		41,545		Swaps	4,489,658		26,429		25,785
Total	$	5,844,361	$	42,578	$	42,342	Total	$	5,851,138	$	27,240	$	26,925

Schedule of net gains (losses) recognized on the Consolidated Statements of Income related to derivatives designated as fair value hedge

The following table presents the net gains (losses) recognized on the Consolidated Statement of Income related to the derivatives designated as fair value hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018			2017
Gains (losses) recorded in interest expense:
Recognized on interest rate swaps	$	2,655		$	(93	)	$	(2,734	)
Recognized on certificates of deposit	$	(2,536	)	$	278		$	2,271

Schedule of the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of the hedged certificates of deposit

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of the hedged certificates of deposit as of December 31, 2019 and 2018:

($ in thousands)	Carrying Value (1)						Cumulative Fair Value Adjustment (2)
	December 31,						December 31,
	2019			2018			2019		2018
Certificates of deposit	$	(29,080	)	$	(26,877	)	$	1,604	$	4,141

(1) Represents the full carrying amount of the hedged certificates of deposit.

(2)

For liabilities, (increase) decrease to carrying value.

Schedule of gains (losses) related to net investment hedges on a pre-tax basis in accumulated other comprehensive income (loss) and Consolidated Statements of Income

The following table presents the (losses) gains recorded on net investment hedges for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019			2018		2017
(Losses) gains recognized in AOCI	$	(471	)	$	6,072	$	(648	)
(Losses) recognized in Foreign exchange income(1)	$	—		$	—	$	(1,953	)

(1)

Represents the losses recorded in the Consolidated Statement of Income related to the ineffective portion of the net investment hedges prior to the adoption of ASU 2017-12, effective January 1, 2018. After the adoption, the fair value gains (losses) are recorded in Foreign Currency Translation Adjustments within AOCI.

Schedule of net gains (losses) recognized on the Consolidated Statements of Income related to derivatives not designated as hedging instruments

The following table presents the net gains (losses) recognized on the Company’s Consolidated Statement of Income related to derivatives not designated as hedging instruments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Classification in Consolidated Statement of Income	Year Ended December 31,
		2019			2018			2017
Derivatives not designated as hedging instruments:
Interest rate contracts	Interest rate contracts and other derivative income	$	(2,126	)	$	280		$	(1,772	)
Foreign exchange contracts	Foreign exchange income	22,264			16,784			22,076
Credit contracts	Interest rate contracts and other derivative income	59			(156		)	(7		)
Equity contracts	Lending fees	678			512			1,672
Commodity contracts	Interest rate contracts and other derivative income	(67		)	(11		)	—
Net gains		$	20,808		$	17,409		$	21,969

Schedule of gross derivative fair values, the balance sheet netting adjustments and net fair values on the Consolidated Balance Sheets, as well as the cash and non-cash collateral

The following tables present the gross derivative fair values, the balance sheet netting adjustments and the resulting net fair values recorded on the consolidated balance sheet, as well as the cash and non-cash collateral associated with master netting arrangements. The gross amounts of derivative assets and liabilities are presented after the application of variation margin payments as settlements with centrally cleared organizations, where applicable. The collateral amounts in following tables are limited to the outstanding balances of the related asset or liability, after the application of netting; therefore instances of overcollateralization are not shown:

($ in thousands)	As of December 31, 2019
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	330,316	$	(121,561	)	$	(3,758	)	$	204,997	$	—		$	204,997
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	256,528	$	(121,561	)	$	(38,238	)	$	96,729	$	(79,619	)	$	17,110

($ in thousands)	As of December 31, 2018
	Gross Amounts Recognized (1)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Received (3)					Security Collateral Received (5)
Derivative assets	$	107,816	$	(31,569	)	$	(13,577	)	$	62,670	$	(13,975	)	$	48,695
	Gross Amounts Recognized (2)		Gross Amounts Offset on the Consolidated Balance Sheet						Net Amounts Presented on the Consolidated Balance Sheet		Gross Amounts Not Offset on the Consolidated Balance Sheet			Net Amount
			Master Netting Arrangements			Cash Collateral Pledged (4)					Security Collateral Pledged (5)
Derivative liabilities	$	118,305	$	(31,569	)	$	(6,833	)	$	79,903	$	(11,231	)	$	68,672

(1) Gross amounts recognized for derivative assets include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $328.7 million and $105.9 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $1.6 million and $2.0 million, respectively, as of December 31, 2019 and 2018.

(2) Gross amounts recognized for derivative liabilities include amounts with counterparties subject to enforceable master netting arrangements or similar agreements of $256.5 million and $118.2 million, respectively, as of December 31, 2019 and 2018, and amounts with counterparties not subject to enforceable master netting arrangements or similar agreements of $20 thousand and $102 thousand, respectively, as of December 31, 2019 and 2018.

(3) Gross cash collateral received under master netting arrangements or similar agreements were $3.8 million and $15.8 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral received,$3.8 million and $13.6 million were used to offset against derivative assets, respectively, as of December 31, 2019 and 2018.

(4) Gross cash collateral pledged under master netting arrangements or similar agreements were $43.0 million and $8.4 million, respectively, as of December 31, 2019 and 2018. Of the gross cash collateral pledged, $38.2 million and $6.8 million were used to offset against derivative liabilities, respectively, as of December 31, 2019 and 2018.

(5) Represents the fair value of security collateral received and pledged limited to derivative assets and liabilities that are subject to enforceable master netting arrangements or similar agreements. GAAP does not permit the netting of non-cash collateral on the consolidated balance sheet but requires disclosure of such amounts.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of useful lives for premises and equipment

The ranges of estimated useful lives for the principal classes of assets are as follows:

Premises and Equipment	Useful Lives
Buildings	25 years
Furniture, fixtures and equipment, building improvements	3 to 7 years
Leasehold improvements	Term of lease or useful life, whichever is shorter

Schedule of new accounting pronouncements adopted and recent accounting pronouncements

New Accounting Pronouncements Adopted in 2019

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2019
ASU 2016-02, Leases (Topic 842) and subsequent related ASUs	January 1, 2019 for leases standards other than ASU 2019-01 January 1, 2020 for ASU 2019-01 where early adoption is permitted.	ASC Topic 842, Leases, supersedes ASC Topic 840, Leases. This ASU requires lessees to recognize right-of-use assets and related lease liabilities for all leases with lease terms of more than 12 months on the Consolidated Balance Sheet, and provide quantitative and qualitative disclosures regarding key information about the leasing arrangements. For short-term leases with a term of 12 months or less, lessees can make a policy election not to recognize lease assets and lease liabilities. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. Lessee accounting for finance leases, as well as lessor accounting is largely unchanged. The standard may be adopted using a modified retrospective approach through a cumulative-effect adjustment. In addition, the FASB issued ASU 2018-11, Leases (Topic 842) Targeted Improvements, which provides companies the option to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year they adopt ASU 2016-02. Companies that elect this transition option can recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented.	The Company adopted all the new lease standards on January 1, 2019 using the alternative transition method, which allows the adoption of the accounting standard prospectively without revising comparable prior periods’ financial information. On January 1, 2019, the Company recognized $109.1 million and $117.7 million increase in right-of-use assets and associated lease liabilities, respectively, based on the present value of the expected remaining operating lease payments. In addition, the Company also recognized a cumulative-effect adjustment, net of tax of $10.5 million to increase beginning balance of retained earnings as of January 1, 2019 related to the deferred gains on our prior sale and leaseback transactions that occurred prior to the date of adoption. The adoption of the new leases standards did not have a material impact on the Company’s Consolidated Statement of Income. Disclosures related to leases are included in Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K.
ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes	January 1, 2019 Early adoption (including adoption in an interim period) is permitted for entities that already adopted ASU 2017-12.	This ASU amends ASC Topic 815, Derivatives and Hedging, by adding the OIS rate based on SOFR to the list of U.S. benchmark interest rates that are eligible to be hedged to facilitate the London Interbank Offered Rate (“LIBOR”) to SOFR transition. The guidance should be applied prospectively for qualifying new or redesignated hedging relationships entered into on or after the date of adoption.	The Company adopted ASU 2018-16 prospectively on January 1, 2019. The adoption of this guidance did not impact existing hedges but may impact new hedge relationships that are benchmarked against the SOFR OIS rate.

Recent Accounting Pronouncements

Standard	Required Date of Adoption	Description	Effects on Financial Statements
Standards Adopted in 2020
ASU 2016-13,  Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and subsequent related ASUs	January 1, 2020 Early adoption is permitted on January 1, 2019.	The ASU introduces a new current expected credit loss (“CECL”) impairment model that applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loan receivables, AFS and held-to-maturity debt securities, net investments in leases and off-balance sheet credit exposures. The CECL model utilizes a lifetime “expected credit loss” measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. The expected credit losses are adjusted in each period for changes in expected lifetime credit losses. This ASU also expands the disclosure requirements regarding an entity’s assumptions, models and methods for estimating the allowance for loan and lease losses, and requires disclosure of the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination (i.e., by vintage year). The guidance should be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption. The new guidance also allows optional relief for certain instruments measured at amortized cost with an option to irrevocably elect the fair value option under ASC Topic 825, Financial Instruments.	The Company adopted ASU 2016-13 using a modified retrospective approach on January 1, 2020 without electing the fair value option on eligible financial instruments under ASU 2019-05. The Company has completed its implementation of the new processes and controls over the new credit and loss aggregation models, completed two parallel runs, analyzed model results, revised the qualitative framework and updated policies and disclosures. Upon adoption of the ASU, the Company‘s ACL, which includes the reserve for unfunded credit commitments, increased approximately 34% from $369.4 million as of December 31, 2019. This impact was recorded as a cumulative-effect adjustment that reduced retained earnings on January 1, 2020.  This increase in ACL was mainly driven by the Company’s C&I and CRE loan portfolios due to the capture of lifetime expected credit losses under the new guidance. There was no ACL recorded on the AFS securities portfolio upon the adoption of this guidance. The regulatory rules provide the banks with the option to elect a three-year phase-in of the “day one” impact of CECL. The Company has elected not to apply the three-year phased-in approach in its first quarter 2020’s regulatory capital calculations. Upon adoption of CECL, the Company and the Bank are well-capitalized.
ASU2017-04,  Intangibles — Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	January 1, 2020 Early adoption is permitted for interim or annual goodwill impairment tests with measurement dates after January 1, 2017.	The ASU simplifies the accounting for goodwill impairment. Under this guidance, an entity will no longer perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, an impairment loss will be recognized when the carrying amount of a reporting unit exceeds its fair value. The guidance also eliminates the requirement to perform a qualitative assessment for any reporting units with a zero or negative carrying amount. This guidance should be applied prospectively.	The Company adopted this guidance on January 1, 2020. The Company does not expect the adoption of this guidance to have a material impact on the Company’s Consolidated Financial Statements.
ASU 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020 Early adoption is permitted.	The ASU amends ASC Topic 350-40 to align the accounting for costs incurred in a cloud computing arrangement with the guidance on developing internal use software. Specifically, if a cloud computing arrangement is deemed to be a service contract, certain implementation costs are eligible for capitalization. The new guidance prescribes the balance sheet and income statement presentation and cash flow classification for the capitalized costs and related amortization expense. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.	The Company adopted this guidance on a prospective basis on January 1, 2020. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

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Stock Compensation Plans (Summary of Activity for Time-Based and Performance-Based RSUs) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Time-Based RSUs
Shares
Outstanding at beginning of year (in shares)	1,121,391
Granted (in shares)	500,145
Vested (in shares)	(387,273)
Forfeited (in shares)	(94,395)
Outstanding at end of year (in shares)	1,139,868	1,121,391
Weighted- Average Grant Date Fair Value
Outstanding at end of year (in dollars per share)	$ 51.22
Granted (in dollars per share)	52.46	$ 66.86	$ 55.28
Vested (in dollars per share)	31.98
Forfeited (in dollars per share)	57.48
Outstanding at end of year (in dollars per share)	$ 57.78	$ 51.22
Performance-Based RSUs
Shares
Outstanding at beginning of year (in shares)	411,290
Granted (in shares)	134,600
Vested (in shares)	(159,407)
Forfeited (in shares)	0
Outstanding at end of year (in shares)	386,483	411,290
Weighted- Average Grant Date Fair Value
Outstanding at end of year (in dollars per share)	$ 49.93
Granted (in dollars per share)	54.64	$ 70.13	$ 56.59
Vested (in dollars per share)	29.18
Forfeited (in dollars per share)	0
Outstanding at end of year (in dollars per share)	$ 60.13	$ 49.93
Time Based Restricted Stock Settled in Cash
Shares
Outstanding at beginning of year (in shares)	0
Granted (in shares)	12,145
Vested (in shares)	0
Forfeited (in shares)	(507)
Outstanding at end of year (in shares)	11,638	0

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Commitments, Contingencies and Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Commitments to Extend Credit
Letters of credit	$ 1,860,414	$ 1,796,647
Other Commitments
Unfunded commitments for investments in AHP and other tax credit investments	193,809
Accrued Expenses and Other Liabilities
Commitments to Extend Credit
Allowance for unfunded credit commitments	11,100	12,400
Other Commitments
Unfunded commitments for investments in AHP and other tax credit investments	193,800	161,000
Standby Letters of Credit
Commitments to Extend Credit
Letters of credit	1,810,000
Commercial Letters Of Credit
Commitments to Extend Credit
Letters of credit	48,500
Loans sold or securitized with recourse | Single Family Residential and Multi-Family Residential | Loans Sold or Securitized with Recourse | Accrued Expenses and Other Liabilities
Commitments to Extend Credit
Allowance for unfunded credit commitments	$ 76	$ 123

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Parent Company Condensed Financial Statements

12 Months Ended

Dec. 31, 2019

Condensed Financial Information Disclosure [Abstract]

Parent Company Condensed Financial Statements

Parent Company Condensed Financial Statements

The principal sources of East West’s income (on a Parent Company-only basis) are dividends from the Bank. In addition to dividend restrictions set forth in statutes and regulations, the banking agencies have the authority to prohibit or to limit the Bank from paying dividends, if, in the banking regulator’s opinion, payment of a dividend would constitute an unsafe or unsound practice in light of the financial condition of the Bank. The Bank declared $190.0 million, $160.0 million and $255.0 million of dividends to East West during the years ended December 31, 2019, 2018 and 2017, respectively.

The following tables present the Parent Company-only condensed financial statements:

CONDENSED BALANCE SHEET

($ in thousands, except shares)	December 31,
	2019			2018
ASSETS
Cash and cash equivalents due from subsidiary bank	$	166,131		$	149,411
Investments in subsidiaries:
Bank	4,987,666			4,401,860
Nonbank	5,630			3,662
Investments in tax credit investments, net	11,637			23,259
Goodwill	150			—
Other assets	3,941			6,487
TOTAL	$	5,175,155		$	4,584,679
LIABILITIES
Long-term debt	$	147,101		$	146,835
Other liabilities	10,437			13,870
Total liabilities	157,538			160,705
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 166,621,959 and 165,867,587 shares issued in 2019 and 2018, respectively	167			166
Additional paid-in capital	1,826,345			1,789,811
Retained earnings	3,689,377			3,160,132
Treasury stock, at cost — 20,996,574 shares in 2019 and 20,906,224 shares in 2018	(479,864		)	(467,961		)
AOCI, net of tax	(18,408		)	(58,174		)
Total stockholders’ equity	5,017,617			4,423,974
TOTAL	$	5,175,155		$	4,584,679

CONDENSED STATEMENT OF INCOME

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Dividends from subsidiaries:
Bank	$	190,000	$	160,000	$	255,000
Nonbank	189		175		4,118
Net gains on sales of AFS investment securities	—		—		326
Other income	425		2		395
Total income	190,614		160,177		259,839
Interest expense on long-term debt	6,482		6,488		5,429
Compensation and employee benefits	5,479		5,559		5,065
Amortization of tax credit and other investments	8,437		413		5,908
Other expense	1,487		1,490		1,257
Total expense	21,885		13,950		17,659
Income before income tax benefit and equity in undistributed income of subsidiaries	168,729		146,227		242,180
Income tax benefit	6,737		3,404		18,182
Undistributed earnings of subsidiaries, primarily bank	498,569		554,070		245,262
Net income	$	674,035	$	703,701	$	505,624

CONDENSED STATEMENT OF CASH FLOWS

($ in thousands)	Year Ended December 31,
	2019			2018			2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	674,035		$	703,701		$	505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiaries, principally bank	(498,569		)	(554,070		)	(245,262		)
Amortization expenses	8,703			671			6,158
Deferred income tax (benefit) expense	(10,132		)	3,517			940
Gains on sales of AFS investment securities	—			—			(326		)
Net change in other assets	10,246			(595		)	(3,341		)
Net change in other liabilities	(18		)	(45		)	(560		)
Net cash provided by operating activities	184,265			153,179			263,233
CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in investments in tax credit investments	(292		)	(1,049		)	(11,591		)
Proceeds from distributions received from equity method investees	2,577			1,491			1,814
Investments in and advances to nonbank subsidiaries	(3,314		)	—			—
Other investing activities	(157		)	—			—
AFS investment securities:
Proceeds from sales	—			—			18,326
Purchases	—			—			(9,000		)
Net cash (used in) provided by investing activities	(1,186		)	442			(451		)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt	—			(25,000		)	(15,000		)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	3,383			2,846			2,280
Stocks tendered for payment of withholding taxes	(14,635		)	(15,634		)	(12,940		)
Cash dividends paid	(155,107		)	(125,988		)	(116,820		)
Net cash used in financing activities	(166,359		)	(163,776		)	(142,480		)
Net increase (decrease) in cash and cash equivalents	16,720			(10,155		)	120,302
Cash and cash equivalents, beginning of year	149,411			159,566			39,264
Cash and cash equivalents, end of year	$	166,131		$	149,411		$	159,566

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Consolidated Statement of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income		$ 674,035	$ 703,701	$ 505,624
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		144,178	139,499	149,822
Accretion of discount and amortization of premiums, net		(22,379)	(20,572)	(7,260)
Stock compensation costs		30,761	30,937	24,657
Deferred income tax (benefit) expense		(21,604)	(16,470)	33,856
Provision for credit losses		98,685	64,255	46,266
Net gains on sales of loans		(4,035)	(6,590)	(8,870)
Net gains on sales of AFS investment securities		(3,930)	(2,535)
Net gains on sales of AFS investment securities				(8,037)
Net gains on sales of fixed assets		(114)	(6,683)	(77,388)
Net gain on sale of business		0	(31,470)	(3,807)
Loans held-for-sale:
Originations and purchases		(10,569)	(20,176)	(20,521)
Proceeds from sales and paydowns/payoffs of loans originally classified as held-for-sale		10,436	20,068	21,363
Proceeds from distributions received from equity method investees		3,470	3,761	3,582
Net change in accrued interest receivable and other assets		(170,819)	(60,791)	45,354
Net change in other liabilities		7,012	88,070	(1,965)
Other net operating activities		702	(1,832)	599
Total adjustments		61,794	179,471	197,651
Net cash provided by operating activities		735,829	883,172	703,275
Net (increase) decrease in:
Investments in qualified affordable housing partnerships, tax credit and other investments		(146,902)	(132,605)	(173,630)
Interest-bearing deposits with banks		193,455	4,212	(63,096)
Resale agreements:
Proceeds from paydowns and maturities		650,000	175,000	1,250,000
Purchases		(325,000)	(160,000)	(600,000)
AFS investment securities:
Proceeds from sales		627,110	364,270
Proceeds from sales				832,844
Proceeds from repayments, maturities and redemptions		1,155,002	742,132
Proceeds from repayments, maturities and redemptions				413,593
Purchases		(2,303,317)	(888,673)
Purchases				(828,604)
Loans held-for-investment:
Proceeds from sales of loans originally classified as held-for-investment		288,823	483,948	566,688
Purchases		(524,142)	(597,112)	(534,816)
Other changes in loans held-for-investment, net		(2,184,915)	(3,313,382)	(3,514,786)
Premises and equipment:
Proceeds from sales		403	1,638	119,749
Purchases		(9,859)	(13,787)	(13,754)
Sales of businesses, net of cash transferred:
Proceeds		0	0	3,633
Payments		0	(503,687)	0
Proceeds from sales of other real estate owned (“OREO”)		1,224	4,484	6,999
Proceeds from distributions received from equity method investees		9,502	5,185	8,387
Other net investing activities		(2,560)	(4,035)	19,969
Net cash (used in) provided by investing activities		(2,571,176)	(3,832,412)	(2,506,824)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits		1,902,741	3,903,192	2,272,500
Net (decrease) increase in short-term borrowings		(28,535)	61,392	(61,560)
FHLB advances
Proceeds		1,500,000	0	0
Repayment		(1,082,001)	0	0
Repayment of long-term debt and lease liabilities		(884)	(25,000)	(15,000)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements		3,383	2,846	2,280
Stocks tendered for payment of withholding taxes		(14,635)	(15,634)	(12,940)
Cash dividends paid		(155,107)	(125,988)	(116,820)
Net cash (used in) provided by financing activities		2,124,962	3,800,808	2,068,460
Effect of exchange rate changes on cash and cash equivalents		(29,843)	(24,783)	31,178
NET INCREASE IN CASH AND CASH EQUIVALENTS		259,772	826,785	296,089
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR		3,001,377	2,174,592	1,878,503
CASH AND CASH EQUIVALENTS, END OF YEAR		3,261,149	3,001,377	2,174,592
Cash paid during the year for:
Interest		418,840	253,026	138,766
Income taxes, net		158,296	85,872	98,126
Noncash investing and financing activities:
Loans transferred from held-for-investment to held-for-sale	[1]	285,637	481,593	613,088
Loans transferred from held-for-sale to held-for-investment		0	2,306	0
Deposits transferred to branch liability held-for-sale		0	0	605,111
Investment security transferred from held-to-maturity to AFS		0	0	115,615
Premises and equipment transferred to branch assets held-for-sale		0	0	8,043
Loans transferred to OREO		$ 2,013	$ 1,206	$ 777

[1] December 31, 2017 amount includes loans transferred from held-for-investment to branch assets held-for-sale.

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Parent Company Condensed Financial Statements (Condensed Statement of Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of income
Net gains on sales of AFS debt investment securities									$ 3,930	$ 2,535
Net gains on sales of AFS debt and equity investment securities											$ 8,037
Interest expense on long-term debt	$ 99,014	$ 107,105	$ 107,518	$ 100,850	$ 87,918	$ 73,465	$ 58,632	$ 45,180	414,487	265,195	140,050
Compensation and employee benefits									401,700	379,622	335,291
Amortization of tax credit and other investments									85,515	89,628	87,950
Other expense									92,249	88,042	82,974
Income tax benefit	(31,067)	(34,951)	(72,797)	(31,067)	(32,037)	(33,563)	(24,643)	(24,752)	(169,882)	(114,995)	(229,476)
NET INCOME	$ 188,215	$ 171,416	$ 150,380	$ 164,024	$ 173,018	$ 171,302	$ 172,349	$ 187,032	674,035	703,701	505,624
Parent Company
Statement of income
Net gains on sales of AFS debt investment securities									0	0
Net gains on sales of AFS debt and equity investment securities											326
Other income									425	2	395
Total income									190,614	160,177	259,839
Interest expense on long-term debt									6,482	6,488	5,429
Compensation and employee benefits									5,479	5,559	5,065
Amortization of tax credit and other investments									8,437	413	5,908
Other expense									1,487	1,490	1,257
Total expense									21,885	13,950	17,659
Income before income tax benefit and equity in undistributed income of subsidiaries									168,729	146,227	242,180
Income tax benefit									6,737	3,404	18,182
Undistributed earnings of subsidiaries, primarily bank									498,569	554,070	245,262
NET INCOME									674,035	703,701	505,624
Parent Company | Bank
Statement of income
Dividends from subsidiaries									190,000	160,000	255,000
Parent Company | Nonbank
Statement of income
Dividends from subsidiaries									$ 189	$ 175	$ 4,118

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Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of the changes in the components of accumulated other comprehensive income (loss) balances

The following table presents the changes in the components of AOCI balances for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	AFS Investment Securities			Foreign Currency Translation Adjustments (1)			Total
Balance, December 31, 2016	$	(28,772	)	$	(19,374	)	$	(48,146	)
Net unrealized gains arising during the period	2,531			12,753			15,284
Amounts reclassified from AOCI	(4,657		)	—			(4,657		)
Changes, net of tax	(2,126		)	12,753			10,627
Balance, December 31, 2017	$	(30,898	)	$	(6,621	)	$	(37,519	)
Cumulative effect of change in accounting principle related to marketable equity securities (2)	385			—			385
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate (3)	(6,656		)	—			(6,656		)
Balance, January 1, 2018, adjusted	(37,169		)	(6,621		)	(43,790		)
Net unrealized losses arising during the period	(6,866		)	(5,732		)	(12,598		)
Amounts reclassified from AOCI	(1,786		)	—			(1,786		)
Changes, net of tax	(8,652		)	(5,732		)	(14,384		)
Balance, December 31, 2018	$	(45,821	)	$	(12,353	)	$	(58,174	)
Net unrealized gains (losses) arising during the period	46,170			(3,636		)	42,534
Amounts reclassified from AOCI	(2,768		)	—			(2,768		)
Changes, net of tax	43,402			(3,636		)	39,766
Balance, December 31, 2019	$	(2,419	)	$	(15,989	)	$	(18,408	)

(1) Represents foreign currency translation adjustments related to the Company’s net investment in non-U.S. operations, including related hedges. The functional currency and reporting currency of the Company’s foreign subsidiary was RMB and USD, respectively.

(2) Represents the impact of the adoption of ASU 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018.

(3)

Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018.

Schedule of components of other comprehensive income (loss), reclassifications to net income and the related tax effects

The following table presents the components of other comprehensive income (loss), reclassifications to net income and the related tax effects for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019									2018								2017
	Before - Tax			Tax Effect			Net-of- Tax			Before - Tax			Tax Effect		Net-of- Tax			Before - Tax			Tax Effect			Net-of- Tax
AFS investment securities:
Net unrealized gains (losses) arising during the period	$	65,549		$	(19,379	)	$	46,170		$	(9,748	)	$	2,882	$	(6,866	)	$	4,368		$	(1,837	)	$	2,531
Net realized gains reclassified into net income (1)	(3,930		)	1,162			(2,768		)	(2,535		)	749		(1,786		)	(8,037		)	3,380			(4,657		)
Net change	61,619			(18,217		)	43,402			(12,283		)	3,631		(8,652		)	(3,669		)	1,543			(2,126		)
Foreign currency translation adjustments, net of hedges:
Net unrealized gains (losses) arising during the period (2)	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Net change	290			(3,926		)	(3,636		)	(5,732		)	—		(5,732		)	12,753			—			12,753
Other comprehensive income (loss)	$	61,909		$	(22,143	)	$	39,766		$	(18,015	)	$	3,631	$	(14,384	)	$	9,084		$	1,543		$	10,627

(1) For the years ended December 31, 2019, 2018 and 2017, pre-tax amounts were reported in Net gains on sales of AFS investment securities on the Consolidated Statement of Income.

(2)

The tax effects on foreign currency translation adjustments represent the cumulative net deferred tax liabilities since inception on net investment hedges that were recorded during the year ended December 31, 2019.

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Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information (unaudited)

($ and shares in thousands, except per share data)	2019 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	467,233	$	476,912	$	474,844	$	463,311
Interest expense	99,014		107,105		107,518		100,850
Net interest income before provision for credit losses	368,219		369,807		367,326		362,461
Provision for credit losses	18,577		38,284		19,245		22,579
Net interest income after provision for credit losses	349,642		331,523		348,081		339,882
Noninterest income	63,013		51,474		52,759		42,131
Noninterest expense	193,373		176,630		177,663		186,922
Income before income taxes	219,282		206,367		223,177		195,091
Income tax expense	31,067		34,951		72,797		31,067
Net income	$	188,215	$	171,416	$	150,380	$	164,024
EPS
- Basic	$	1.29	$	1.18	$	1.03	$	1.13
- Diluted	$	1.29	$	1.17	$	1.03	$	1.12
Weighted-average number of shares outstanding
- Basic	145,624		145,559		145,546		145,256
- Diluted	146,318		146,120		146,052		145,921

($ and shares in thousands, except per share data)	2018 Quarters
	Fourth		Third		Second		First
Interest and dividend income	$	457,334	$	422,185	$	400,311	$	371,873
Interest expense	87,918		73,465		58,632		45,180
Net interest income before provision for credit losses	369,416		348,720		341,679		326,693
Provision for credit losses	17,959		10,542		15,536		20,218
Net interest income after provision for credit losses	351,457		338,178		326,143		306,475
Noninterest income	41,695		46,502		48,268		74,444
Noninterest expense	188,097		179,815		177,419		169,135
Income before income taxes	205,055		204,865		196,992		211,784
Income tax expense	32,037		33,563		24,643		24,752
Net income	$	173,018	$	171,302	$	172,349	$	187,032
EPS
- Basic	$	1.19	$	1.18	$	1.19	$	1.29
- Diluted	$	1.18	$	1.17	$	1.18	$	1.28
Weighted-average number of shares outstanding
- Basic	144,960		144,921		144,899		144,664
- Diluted	146,133		146,173		146,091		145,939

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Consolidated Statement of income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$ 1,717,415	$ 1,503,514	$ 1,198,440
Investment debt securities	67,838	60,911
Investment debt and equity securities			58,670
Resale agreements	27,819	29,328	32,095
Restricted equity securities	2,468	3,146	2,524
Interest-bearing cash and deposits with banks	66,760	54,804	33,390
Total interest and dividend income	1,882,300	1,651,703	1,325,119
INTEREST EXPENSE
Deposits	375,802	234,752	116,391
Federal funds purchased and other short-term borrowings	1,763	1,398	1,003
FHLB advances	16,697	10,447	7,751
Repurchase agreements	13,582	12,110	9,476
Long-term debt and finance lease liabilities	6,643	6,488	5,429
Total interest expense	414,487	265,195	140,050
Net interest income before provision for credit losses	1,467,813	1,386,508	1,185,069
Provision for credit losses	98,685	64,255	46,266
Net interest income after provision for credit losses	1,369,128	1,322,253	1,138,803
NONINTEREST INCOME
Lending fees	63,670	59,758	58,395
Deposit account fees	38,648	39,176	40,299
Foreign exchange income	26,398	21,259	9,908
Wealth management fees	16,668	13,785	13,974
Interest rate contracts and other derivative income	39,865	18,980	17,671
Net gains on sales of loans	4,035	6,590	8,870
Net gains on sales of AFS debt investment securities	3,930	2,535
Net gains on sales of AFS debt and equity investment securities			8,037
Net gains on sales of fixed assets	114	6,683	77,388
Net gain on sale of business	0	31,470	3,807
Other investment income	5,249	1,207	3,903
Other income	10,800	9,466	15,496
Total noninterest income	209,377	210,909	257,748
NONINTEREST EXPENSE
Compensation and employee benefits	401,700	379,622	335,291
Occupancy and equipment expense	69,730	68,896	64,921
Deposit insurance premiums and regulatory assessments	12,928	21,211	23,735
Legal expense	8,441	8,781	11,444
Data processing	13,533	13,177	12,093
Consulting expense	9,846	11,579	14,922
Deposit related expense	14,175	11,244	9,938
Computer software expense	26,471	22,286	18,183
Other operating expense	92,249	88,042	82,974
Amortization of tax credit and other investments	85,515	89,628	87,950
Total noninterest expense	734,588	714,466	661,451
INCOME BEFORE INCOME TAXES	843,917	818,696	735,100
INCOME TAX EXPENSE	169,882	114,995	229,476
NET INCOME	$ 674,035	$ 703,701	$ 505,624
EARNINGS PER SHARE (“EPS”)
BASIC (in dollars per share)	$ 4.63	$ 4.86	$ 3.50
DILUTED (in dollars per share)	$ 4.61	$ 4.81	$ 3.47
WEIGHTED-AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC (in shares)	145,497	144,862	144,444
DILUTED (in shares)	146,179	146,169	145,913

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Summary of Significant Accounting Policies (Stock-Based Compensation) (Details) - RSUs	12 Months Ended
	Dec. 31, 2019
Ratably
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Cliff | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Cliff | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years

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Derivatives (Derivatives Not Designated as Hedging Instruments - Commodity Contracts) (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) MMBTU Boe	Dec. 31, 2018 USD ($) MMBTU Boe
Derivative [Line Items]
Derivative assets - Fair value	$ 330,316	$ 107,816
Derivative liabilities - Fair Value	$ 256,528	$ 118,305
Customer Counterparty | Crude Oil
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	7,811	2,507
Customer Counterparty | Natural Gas
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	63,773	14,722
Derivative instruments not designated as hedging instruments
Derivative [Line Items]
Derivative assets - Fair value	$ 330,316	$ 107,816
Derivative liabilities - Fair Value	251,744	111,828
Derivative instruments not designated as hedging instruments | Commodity contracts
Derivative [Line Items]
Derivative assets - Fair value	81,380	14,422
Derivative liabilities - Fair Value	80,517	23,068
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Commodity contracts
Derivative [Line Items]
Derivative assets - Fair value	40,065	1,127
Derivative liabilities - Fair Value	$ 42,140	$ 22,687
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Crude Oil | Written options
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	36	524
Derivative assets - Fair value	$ 0	$ 0
Derivative liabilities - Fair Value	$ 30	$ 2,628
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Crude Oil | Collars
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	3,174	872
Derivative assets - Fair value	$ 2,673	$ 0
Derivative liabilities - Fair Value	$ 538	$ 3,772
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Crude Oil | Swaps
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	4,601	1,111
Derivative assets - Fair value	$ 6,949	$ 0
Derivative liabilities - Fair Value	$ 5,531	$ 14,278
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Crude Oil | Commodity contracts
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	7,811	2,507
Derivative assets - Fair value	$ 9,622	$ 0
Derivative liabilities - Fair Value	$ 6,099	$ 20,678
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Natural Gas | Written options
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	540
Derivative assets - Fair value	$ 0
Derivative liabilities - Fair Value	$ 22
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Natural Gas | Collars
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	14,277	3,063
Derivative assets - Fair value	$ 186	$ 78
Derivative liabilities - Fair Value	$ 522	$ 152
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Natural Gas | Swaps
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	48,956	11,659
Derivative assets - Fair value	$ 30,257	$ 1,049
Derivative liabilities - Fair Value	$ 35,497	$ 1,857
Commodity contracts | Derivative instruments not designated as hedging instruments | Customer Counterparty | Natural Gas | Commodity contracts
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	63,773	14,722
Derivative assets - Fair value	$ 30,443	$ 1,127
Derivative liabilities - Fair Value	36,041	2,009
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Commodity contracts
Derivative [Line Items]
Derivative assets - Fair value	41,315	13,295
Derivative liabilities - Fair Value	$ 38,377	$ 381
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Crude Oil | Purchased options
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	36	524
Derivative assets - Fair value	$ 29	$ 2,251
Derivative liabilities - Fair Value	$ 0	$ 0
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Crude Oil | Collars
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	3,630	872
Derivative assets - Fair value	$ 677	$ 3,225
Derivative liabilities - Fair Value	$ 2,815	$ 0
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Crude Oil | Swaps
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	4,721	1,111
Derivative assets - Fair value	$ 4,516	$ 5,799
Derivative liabilities - Fair Value	$ 5,215	$ 0
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Crude Oil | Commodity contracts
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | Boe	8,387	2,507
Derivative assets - Fair value	$ 5,222	$ 11,275
Derivative liabilities - Fair Value	$ 8,030	$ 0
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Natural Gas | Purchased options
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	530
Derivative assets - Fair value	$ 21
Derivative liabilities - Fair Value	$ 0
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Natural Gas | Collars
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	14,517	3,063
Derivative assets - Fair value	$ 471	$ 151
Derivative liabilities - Fair Value	$ 150	$ 64
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Natural Gas | Swaps
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	48,779	11,659
Derivative assets - Fair value	$ 35,601	$ 1,869
Derivative liabilities - Fair Value	$ 30,197	$ 317
Commodity contracts | Derivative instruments not designated as hedging instruments | Financial Counterparty | Natural Gas | Commodity contracts
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | MMBTU	63,826	14,722
Derivative assets - Fair value	$ 36,093	$ 2,020
Derivative liabilities - Fair Value	$ 30,347	$ 381

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Securities (Scheduled Contractual Maturities of Investment Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amortized Cost
Due within one year	$ 721,607
Due after one year through five years	395,468
Due after five years through ten years	143,029
Due after ten years	2,060,544
Total available-for-sale debt securities, Amortized Cost	3,320,648	$ 2,806,900
Fair Value
Due within one year	719,179
Due after one year through five years	392,891
Due after five years through ten years	145,901
Due after ten years	2,059,243
Total available-for-sale investment securities	3,317,214	2,741,847
Available-for-sale debt investment securities pledged as collateral at fair value	$ 479,432	$ 435,833

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Securities (Schedule of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	$ 3,320,648	$ 2,806,900
Gross Unrealized Gains	19,805	5,714
Gross Unrealized Losses	(23,239)	(70,767)
Available-for-sale debt securities, Fair Value	3,317,214	2,741,847
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	177,215	577,561
Gross Unrealized Gains	0	153
Gross Unrealized Losses	(793)	(12,899)
Available-for-sale debt securities, Fair Value	176,422	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	584,275	219,485
Gross Unrealized Gains	1,377	382
Gross Unrealized Losses	(4,407)	(2,694)
Available-for-sale debt securities, Fair Value	581,245	217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	599,814	420,486
Gross Unrealized Gains	8,551	811
Gross Unrealized Losses	(4,894)	(12,694)
Available-for-sale debt securities, Fair Value	603,471	408,603
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	998,447	957,219
Gross Unrealized Gains	6,927	4,026
Gross Unrealized Losses	(1,477)	(14,552)
Available-for-sale debt securities, Fair Value	1,003,897	946,693
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	101,621	82,965
Gross Unrealized Gains	790	87
Gross Unrealized Losses	(109)	(1,032)
Available-for-sale debt securities, Fair Value	102,302	82,020
Non-agency commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	86,609	25,826
Gross Unrealized Gains	1,947	226
Gross Unrealized Losses	(6)	0
Available-for-sale debt securities, Fair Value	88,550	26,052
Non-agency residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	46,830	10,109
Gross Unrealized Gains	3	7
Gross Unrealized Losses	(285)	(185)
Available-for-sale debt securities, Fair Value	46,548	9,931
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	11,250	11,250
Gross Unrealized Gains	12	0
Gross Unrealized Losses	(113)	(381)
Available-for-sale debt securities, Fair Value	11,149	10,869
Foreign bonds
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	354,481	489,378
Gross Unrealized Gains	198	0
Gross Unrealized Losses	(507)	(26,330)
Available-for-sale debt securities, Fair Value	354,172	463,048
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	66,106	12,621
Gross Unrealized Gains	0	22
Gross Unrealized Losses	(1,354)	0
Available-for-sale debt securities, Fair Value	64,752	$ 12,643
CLOs
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale debt securities, Amortized Cost	294,000
Gross Unrealized Gains	0
Gross Unrealized Losses	(9,294)
Available-for-sale debt securities, Fair Value	$ 284,706

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Derivatives (Gains (Losses) in Foreign Currency Translation Adjustment and Foreign Exchange Income) (Details) - Derivative instruments designated as hedging instruments - Net investment hedges - Foreign exchange swap contracts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
(Losses) gains recognized in AOCI	$ (471)	$ 6,072	$ (648)
Gains (losses) recognized in foreign exchange income	$ 0	$ 0	$ (1,953)

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Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Schedule of stock compensation expense and related net tax benefits

The following table presents a summary of the total share-based compensation expense and the related net tax benefits associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Stock compensation costs	$	30,761	$	30,937	$	24,657
Related net tax benefits for stock compensation plans	$	4,792	$	5,089	$	4,775

Summary of activities for time-based and performance-based restricted stock units

The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2019. The number of outstanding performance-based RSUs stated below assumes the associated performance targets will be met at the target level.

	Time-Based RSUs				Performance-Based RSUs
	Shares		Weighted- Average Grant Date Fair Value		Shares		Weighted- Average Grant Date Fair Value
Outstanding, January 1, 2019	1,121,391		$	51.22	411,290		$	49.93
Granted	500,145		52.46		134,600		54.64
Vested	(387,273	)	31.98		(159,407	)	29.18
Forfeited	(94,395	)	57.48		—		—
Outstanding, December 31, 2019	1,139,868		$	57.78	386,483		$	60.13

The following table presents a summary of the activities for the Company’s time-based RSUs that will be settled in cash for the year ended December 31, 2019:

	Shares
Outstanding, January 1, 2019	—
Granted	12,145
Vested	—
Forfeited	(507	)
Outstanding, December 31, 2019	11,638

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Parent Company Condensed Financial Statements (Condensed Balance Sheet - Additional Information) (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Balance sheets
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	166,621,959	165,867,587
Treasury stock, shares (in shares)	20,996,574	20,906,224
Parent Company
Balance sheets
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	166,621,959	165,867,587
Treasury stock, shares (in shares)	20,996,574	20,906,224

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Business Segments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019 segment
Segment Reporting [Abstract]
Number of operating segments	3
Number of business segments	2

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Federal Home Loan Bank Advances and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2019

FEDERAL HOME LOAN BANK ADVANCES AND LONG-TERM DEBT

Schedule of the components of long-term debt

The following table presents the outstanding junior subordinated debt issued by each trust as of December 31, 2019 and 2018:

Issuer	Stated Maturity (1)	Stated Interest Rate	Current Rate	December 31, 2019				December 31, 2018
				Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts		Aggregate Principal Amount of Trust Securities		Aggregate Principal Amount of the Junior Subordinated Debts
($ in thousands)
East West Capital Trust V	November 2034	3-month LIBOR + 1.80%	3.71%	$	464	$	15,000	$	464	$	15,000
East West Capital Trust VI	September 2035	3-month LIBOR + 1.50%	3.39%	619		20,000		619		20,000
East West Capital Trust VII	June 2036	3-month LIBOR + 1.35%	3.24%	928		30,000		928		30,000
East West Capital Trust VIII	June 2037	3-month LIBOR + 1.40%	3.29%	619		18,000		619		18,000
East West Capital Trust IX	September 2037	3-month LIBOR + 1.90%	3.79%	928		30,000		928		30,000
MCBI Statutory Trust I	December 2035	3-month LIBOR + 1.55%	3.44%	1,083		35,000		1,083		35,000
Total				$	4,641	$	148,000	$	4,641	$	148,000

(1)

All the above debt instruments mature more than five years after December 31, 2019 and are subject to call options where early redemption requires appropriate notice.

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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2019

Investments in Qualified Affordable Housing Partnerships, Net [Abstract]

Minimum compliance period to fully utilize tax credits

15 years

Schedule of investments in qualified affordable housing partnerships, net, and related unfunded commitments

The following table presents the Company’s investments in qualified affordable housing partnerships, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in qualified affordable housing partnerships, net	$	207,037	$	184,873
Accrued expenses and other liabilities — Unfunded commitments	$	80,294	$	80,764

Schedule of additional information related to investments in qualified affordable housing partnership, net

The following table presents additional information related to the Company’s investments in qualified affordable housing partnerships, net, for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31,
	2019		2018		2017
Tax credits and other tax benefits recognized	$	46,034	$	39,262	$	46,698
Amortization expense included in income tax expense	$	36,561	$	28,046	$	38,464

Schedule of tax credit and other investment, net, and related unfunded commitments

The following table presents the Company’s investments in tax credit and other investments, net, and related unfunded commitments as of December 31, 2019 and 2018:

($ in thousands)	December 31,
	2019		2018
Investments in tax credit and other investments, net	$	254,140	$	231,635
Accrued expenses and other liabilities — Unfunded commitments	$	113,515	$	80,228

Schedule of unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments, estimated to be paid

As of December 31, 2019, the Company’s unfunded commitments related to investments in qualified affordable housing partnerships, tax credit and other investments are estimated to be funded as follows:

($ in thousands)	Amount
2020	$	121,875
2021	32,039
2022	13,459
2023	15,753
2024	8,145
Thereafter	2,538
Total	$	193,809

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Accumulated Other Comprehensive Income (Loss) (Components of AOCI) (Details) - USD ($) $ in Thousands				12 Months Ended
		Jan. 01, 2018		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019	[2]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 3,841,951		$ 4,423,974	$ 3,841,951	$ 3,427,741
Cumulative effect of change in accounting principle related to marketable equity securities		(160)	[1]				$ 10,510
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[3]	0
Net unrealized gains (losses) arising during the period				42,534	(12,598)	15,284
Amount reclassified from AOCI				(2,768)	(1,786)	(4,657)
Other comprehensive income (loss)				39,766	(14,384)	10,627
Ending balance				5,017,617	4,423,974	3,841,951
Available- for-Sale Debt Investment Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(30,898)		(45,821)	(30,898)	(28,772)
Net unrealized gains (losses) arising during the period				46,170	(6,866)	2,531
Amount reclassified from AOCI				(2,768)	(1,786)	(4,657)
Other comprehensive income (loss)				43,402	(8,652)	(2,126)
Ending balance				(2,419)	(45,821)	(30,898)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(6,621)		(12,353)	(6,621)	(19,374)
Net unrealized gains (losses) arising during the period				(3,636)	(5,732)	12,753
Amount reclassified from AOCI				0	0	0
Other comprehensive income (loss)				(3,636)	(5,732)	12,753
Ending balance				(15,989)	(12,353)	(6,621)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(37,519)		(58,174)	(37,519)	(48,146)
Cumulative effect of change in accounting principle related to marketable equity securities	[1]	385
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	[3]	6,656
Other comprehensive income (loss)				39,766	(14,384)	10,627
Ending balance				$ (18,408)	$ (58,174)	$ (37,519)
Accounting Standards Update 2016-01
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of change in accounting principle related to marketable equity securities		385
Accounting Standards Update 2016-01 | Available- for-Sale Debt Investment Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of change in accounting principle related to marketable equity securities		385
Accounting Standards Update 2016-01 | Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of change in accounting principle related to marketable equity securities		0
Accounting Standards Update 2018-02
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		(6,656)
Accounting Standards Update 2018-02 | Available- for-Sale Debt Investment Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		(6,656)
Accounting Standards Update 2018-02 | Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		0
Accounting Standards Update 2018-02 | Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate		6,656
Scenario, Adjustment | Available- for-Sale Debt Investment Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Ending balance		(37,169)
Scenario, Adjustment | Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Ending balance		(6,621)
Scenario, Adjustment | Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Ending balance		$ (43,790)

[1] Represents the impact of the adoption of Accounting Standards Update (“ASU”) 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements in this Annual Report on Form 10-K (“this Form 10-K”) for additional information.

[2] Represents the impact of the adoption of ASU 2016-02, Leases (Topic 842) and subsequent related ASUs in the first quarter of 2019. Refer to Note 1 — Summary of Significant Accounting Policies and Note 10 — Leases to the Consolidated Financial Statements in this Form 10-K for additional information.

[3] Represents amounts reclassified from AOCI to retained earnings due to the early adoption of ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income in the first quarter of 2018. Refer to Note 1 — Summary of Significant Accounting Policies to the Consolidated Financial Statements for additional information.

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Loans Receivable and Allowance for Credit Losses (Narrative) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Loans in process of foreclosure
Other real estate owned, net	$ 125,000	$ 133,000
Residential real estate properties
Loans in process of foreclosure
Recorded investment in consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	7,200,000	3,000,000.0
Carrying amount of foreclosed residential real estate properties included in total net OREO	0	0
PCI Loans
Nonaccrual loans
Total Nonaccrual Loans	$ 297,000	$ 4,000,000.0

XML

Fair Value Measurement and Fair Value of Financial Instruments (Financial Assets and Liabilities Measurement on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	$ 3,317,214	$ 2,741,847
Derivative
Derivative assets - Fair value	330,316	107,816
Derivative asset, net	204,997	62,670
Derivative liabilities - Fair Value	256,528	118,305
Derivative liability, net	96,729	79,903
U.S. Treasury securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	176,422	564,815
U.S. government agency and U.S. government sponsored enterprise debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	581,245	217,173
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	603,471	408,603
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	1,003,897	946,693
Municipal securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	102,302	82,020
Non-agency commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	88,550	26,052
Non-agency residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	46,548	9,931
Corporate debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	11,149	10,869
Foreign bonds
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	354,172	463,048
Asset-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	64,752	12,643
Collateralized loan obligations (“CLOs”)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	284,706
Fair Value, Measurements, Recurring
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	3,317,214	2,741,847
Equity Securities with readily determinable fair value	31,673	31,209
Total investments in tax credit and other investments	31,673	31,209
Derivative
Derivative assets - Fair value	330,316	107,816
Netting adjustments	(125,319)	(45,146)
Derivative asset, net	204,997	62,670
Derivative liabilities - Fair Value	256,528	118,305
Netting adjustments	(159,799)	(38,402)
Derivative liability, net	96,729	79,903
Fair Value, Measurements, Recurring | Interest rate contracts
Derivative
Derivative assets - Fair value	192,883	69,818
Derivative liabilities - Fair Value	127,317	75,133
Fair Value, Measurements, Recurring | Foreign exchange contracts
Derivative
Derivative assets - Fair value	54,637	21,624
Derivative liabilities - Fair Value	48,610	19,940
Fair Value, Measurements, Recurring | Credit contracts
Derivative
Derivative assets - Fair value	2	1
Derivative liabilities - Fair Value	84	164
Fair Value, Measurements, Recurring | Equity warrants
Derivative
Derivative assets - Fair value	1,414	1,951
Fair Value, Measurements, Recurring | Commodity contracts
Derivative
Derivative assets - Fair value	81,380	14,422
Derivative liabilities - Fair Value	80,517	23,068
Fair Value, Measurements, Recurring | U.S. Treasury securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	176,422	564,815
Fair Value, Measurements, Recurring | U.S. government agency and U.S. government sponsored enterprise debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	581,245	217,173
Fair Value, Measurements, Recurring | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	603,471	408,603
Fair Value, Measurements, Recurring | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	1,003,897	946,693
Fair Value, Measurements, Recurring | Municipal securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	102,302	82,020
Fair Value, Measurements, Recurring | Non-agency commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	88,550	26,052
Fair Value, Measurements, Recurring | Non-agency residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	46,548	9,931
Fair Value, Measurements, Recurring | Corporate debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	11,149	10,869
Fair Value, Measurements, Recurring | Foreign bonds
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	354,172	463,048
Fair Value, Measurements, Recurring | Asset-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	64,752	12,643
Fair Value, Measurements, Recurring | Collateralized loan obligations (“CLOs”)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	284,706
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	176,422	564,815
Equity Securities with readily determinable fair value	21,746	20,678
Total investments in tax credit and other investments	21,746	20,678
Derivative
Derivative assets - Fair value	0	0
Netting adjustments	0	0
Derivative asset, net	0	0
Derivative liabilities - Fair Value	0	0
Netting adjustments	0	0
Derivative liability, net	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Credit contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity warrants
Derivative
Derivative assets - Fair value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commodity contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	176,422	564,815
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government agency and U.S. government sponsored enterprise debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-agency commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-agency residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign bonds
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateralized loan obligations (“CLOs”)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	3,140,792	2,177,032
Equity Securities with readily determinable fair value	9,927	10,531
Total investments in tax credit and other investments	9,927	10,531
Derivative
Derivative assets - Fair value	329,895	107,143
Netting adjustments	(125,319)	(45,146)
Derivative asset, net	204,576	61,997
Derivative liabilities - Fair Value	256,528	118,305
Netting adjustments	(159,799)	(38,402)
Derivative liability, net	96,729	79,903
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Interest rate contracts
Derivative
Derivative assets - Fair value	192,883	69,818
Derivative liabilities - Fair Value	127,317	75,133
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	54,637	21,624
Derivative liabilities - Fair Value	48,610	19,940
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Credit contracts
Derivative
Derivative assets - Fair value	2	1
Derivative liabilities - Fair Value	84	164
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Equity warrants
Derivative
Derivative assets - Fair value	993	1,278
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Commodity contracts
Derivative
Derivative assets - Fair value	81,380	14,422
Derivative liabilities - Fair Value	80,517	23,068
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Treasury securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. government agency and U.S. government sponsored enterprise debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	581,245	217,173
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	603,471	408,603
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	1,003,897	946,693
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Municipal securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	102,302	82,020
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Non-agency commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	88,550	26,052
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Non-agency residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	46,548	9,931
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	11,149	10,869
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign bonds
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	354,172	463,048
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	64,752	12,643
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Collateralized loan obligations (“CLOs”)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	284,706
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Equity Securities with readily determinable fair value	0	0
Total investments in tax credit and other investments	0	0
Derivative
Derivative assets - Fair value	421	673
Netting adjustments	0	0
Derivative asset, net	421	673
Derivative liabilities - Fair Value	0	0
Netting adjustments	0	0
Derivative liability, net	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Interest rate contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Foreign exchange contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Credit contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity warrants
Derivative
Derivative assets - Fair value	421	673
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Commodity contracts
Derivative
Derivative assets - Fair value	0	0
Derivative liabilities - Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. Treasury securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government sponsored enterprise debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Municipal securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Non-agency commercial mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Non-agency residential mortgage-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Corporate debt securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Foreign bonds
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	0	$ 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Collateralized loan obligations (“CLOs”)
Investment securities available-for-sale
Available-for-sale debt securities, Fair Value	$ 0

XML

Fair Value Measurement and Fair Value of Financial Instruments (Increase (Decrease) in Value of Assets Measured on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Non-PCI impaired loans
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	$ (35,358)	$ (9,056)	$ (22,624)
Non-PCI impaired loans | Commercial Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(35,356)	(9,071)	(20,122)
Non-PCI impaired loans | Commercial Lending | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(35,365)	(9,341)	(19,703)
Non-PCI impaired loans | Commercial Lending | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	9	270	(272)
Non-PCI impaired loans | Commercial Lending | Construction and land
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	0	0	(147)
Non-PCI impaired loans | Commercial Lending | Total CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	9	270	(419)
Non-PCI impaired loans | Consumer Lending
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(2)	15	(2,502)
Non-PCI impaired loans | Consumer Lending | Residential loan
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(2)	15	(11)
Non-PCI impaired loans | Consumer Lending | Residential loan | Single-family
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	0	15	(11)
Non-PCI impaired loans | Consumer Lending | HELOCs
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(2)	0	0
Non-PCI impaired loans | Consumer Lending | Other consumer
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	0	0	(2,491)
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	(8)	0	(1)
Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in fair value of assets	$ (13,023)	$ 0	$ 0

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Loans Receivable and Allowance for Credit Losses (Non-PCI Impaired Loans) (Details) - Non-PCI impaired loans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Impaired loans disclosures
Unpaid Principal Balance	$ 266,772	$ 152,627
Recorded Investment With No Allowance	129,748	87,812
Recorded Investment With Allowance	68,369	31,106
Total Recorded Investment	198,117	118,918
Related Allowance	5,593	4,032
Average Recorded Investment	370,190	233,180	$ 185,132
Recognized Interest Income	4,318	2,330	2,989
Commercial Lending
Impaired loans disclosures
Unpaid Principal Balance	226,918	125,420
Recorded Investment With No Allowance	115,116	79,713
Recorded Investment With Allowance	44,699	13,287
Total Recorded Investment	159,815	93,000
Related Allowance	3,033	1,502
Average Recorded Investment	307,472	194,194	162,502
Recognized Interest Income	3,692	1,786	2,517
Commercial Lending | C&I
Impaired loans disclosures
Unpaid Principal Balance	174,656	82,963
Recorded Investment With No Allowance	73,956	48,479
Recorded Investment With Allowance	40,086	8,609
Total Recorded Investment	114,042	57,088
Related Allowance	2,881	1,219
Average Recorded Investment	248,619	143,430	110,662
Recognized Interest Income	2,932	1,046	1,517
Commercial Lending | CRE
Impaired loans disclosures
Unpaid Principal Balance	27,601	36,426
Recorded Investment With No Allowance	20,098	28,285
Recorded Investment With Allowance	1,520	2,067
Total Recorded Investment	21,618	30,352
Related Allowance	97	208
Average Recorded Investment	33,046	35,049	36,003
Recognized Interest Income	464	491	578
Commercial Lending | Residential loan | Multifamily
Impaired loans disclosures
Unpaid Principal Balance	4,965	6,031
Recorded Investment With No Allowance	1,371	2,949
Recorded Investment With Allowance	3,093	2,611
Total Recorded Investment	4,464	5,560
Related Allowance	55	75
Average Recorded Investment	6,116	11,742	11,455
Recognized Interest Income	228	249	422
Commercial Lending | Construction and land
Impaired loans disclosures
Unpaid Principal Balance	19,696
Recorded Investment With No Allowance	19,691
Recorded Investment With Allowance	0
Total Recorded Investment	19,691
Related Allowance	0	0
Average Recorded Investment	19,691	3,973	4,382
Recognized Interest Income	68	0	0
Commercial Lending | Total CRE
Impaired loans disclosures
Unpaid Principal Balance	52,262	42,457
Recorded Investment With No Allowance	41,160	31,234
Recorded Investment With Allowance	4,613	4,678
Total Recorded Investment	45,773	35,912
Related Allowance	152	283
Average Recorded Investment	58,853	50,764	51,840
Recognized Interest Income	760	740	1,000
Consumer Lending
Impaired loans disclosures
Unpaid Principal Balance	39,854	27,207
Recorded Investment With No Allowance	14,632	8,099
Recorded Investment With Allowance	23,670	17,819
Total Recorded Investment	38,302	25,918
Related Allowance	2,560	2,530
Average Recorded Investment	62,718	38,986	22,630
Recognized Interest Income	626	544	472
Consumer Lending | Residential loan | Single-family
Impaired loans disclosures
Unpaid Principal Balance	23,626	14,670
Recorded Investment With No Allowance	8,507	2,552
Recorded Investment With Allowance	13,704	10,908
Total Recorded Investment	22,211	13,460
Related Allowance	35	34
Average Recorded Investment	37,315	22,350	14,994
Recognized Interest Income	496	474	417
Consumer Lending | HELOCs
Impaired loans disclosures
Unpaid Principal Balance	13,711	10,035
Recorded Investment With No Allowance	6,125	5,547
Recorded Investment With Allowance	7,449	4,409
Total Recorded Investment	13,574	9,956
Related Allowance	8	5
Average Recorded Investment	22,851	14,134	5,494
Recognized Interest Income	130	70	55
Consumer Lending | Total residential mortgage
Impaired loans disclosures
Unpaid Principal Balance	37,337	24,705
Recorded Investment With No Allowance	14,632	8,099
Recorded Investment With Allowance	21,153	15,317
Total Recorded Investment	35,785	23,416
Related Allowance	43	39
Average Recorded Investment	60,166	36,484	20,488
Recognized Interest Income	626	544	472
Consumer Lending | Other consumer
Impaired loans disclosures
Unpaid Principal Balance	2,517	2,502
Recorded Investment With No Allowance	0	0
Recorded Investment With Allowance	2,517	2,502
Total Recorded Investment	2,517	2,502
Related Allowance	2,517	2,491
Average Recorded Investment	2,552	2,502	2,142
Recognized Interest Income	$ 0	$ 0	$ 0

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Goodwill and Other Intangible Assets (Goodwill) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 465,697,000	$ 465,547,000	$ 469,433,000
Number of reportable segments | segment	3
Goodwill, impairment loss	$ 0

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Loans Receivable and Allowance for Credit Losses (Loans Purchases, Sales and Transfers) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	$ 285,637	$ 481,593	$ 534,956
Loans transferred from held-for-sale to held-for-investment	0	2,306	0
Sales	296,836	511,101	577,964
Purchases	523,830	596,937	534,730
Gross charge-offs, loans transferred from held-for-investment to held-for-sale	789	14,600	473
Net gains on sales of loans	4,035	6,590	8,870
C&I | Loans receivable, originated
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Sales	230,300	309,700
Commercial And Industrial, Commercial Real Estate and Multi-Family Residential | Loans receivable, originated
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Sales			178,200
Loans Sold in Secondary Market | Loans receivable, purchased
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Sales	66,500	201,400	399,800
Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	245,002	404,321	476,644
Loans transferred from held-for-sale to held-for-investment		2,306
Sales	245,791	413,844	476,644
Purchases	397,615	525,767	503,359
Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	39,062	62,291	52,217
Loans transferred from held-for-sale to held-for-investment		0
Sales	39,062	62,291	52,217
Purchases	0	0	0
Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	0	531
Loans transferred from held-for-sale to held-for-investment		0
Sales	0	0	531
Purchases	8,988	7,389	2,311
Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	1,573	0	1,609
Loans transferred from held-for-sale to held-for-investment		0
Sales	1,573	0	1,609
Purchases	0	0	0
Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	14,981	249
Loans transferred from held-for-sale to held-for-investment		0
Sales	10,410	34,966	21,058
Purchases	117,227	63,781	29,060
Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	0	0
Loans transferred from held-for-sale to held-for-investment		0
Sales	0	0	0
Purchases	0	0	0
Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale	0	0	3,706
Loans transferred from held-for-sale to held-for-investment		0
Sales	0	0	25,905
Purchases	$ 0	$ 0	0
Desert Community Bank
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			78,132
Desert Community Bank | Commercial Lending | C&I
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			17,590
Desert Community Bank | Commercial Lending | CRE
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			36,783
Desert Community Bank | Commercial Lending | Residential loan | Multifamily
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			12,448
Desert Community Bank | Commercial Lending | Construction and land
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			241
Desert Community Bank | Consumer Lending | Residential loan | Single-family
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			6,416
Desert Community Bank | Consumer Lending | HELOCs
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			4,309
Desert Community Bank | Consumer Lending | Other consumer
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
Loans transferred from held-for-investment to held-for-sale			$ 345

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Revenue from Contracts with Customers

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

Revenue from Contracts with Customers

The following tables present revenue from contracts with customers within the scope of ASC 606, Revenue from Contracts with Customers, and other noninterest income, segregated by operating segments for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Year Ended December 31, 2019
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	21,327	$	13,564	$	49	$	34,940
Card income	3,032		676		—		3,708
Wealth management fees	15,841		827		—		16,668
Total revenue from contracts with customers	40,200		15,067		49		55,316
Other sources of noninterest income (1)	17,720		119,555		16,786		154,061
Total noninterest income	$	57,920	$	134,622	$	16,835	$	209,377

($ in thousands)	Year Ended December 31, 2018
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	22,474	$	12,326	$	423	$	35,223
Card income	3,196		757		—		3,953
Wealth management fees	13,357		428		—		13,785
Total revenue from contracts with customers	39,027		13,511		423		52,961
Other sources of noninterest income (1)	46,580		96,776		14,592		157,948
Total noninterest income	$	85,607	$	110,287	$	15,015	$	210,909

($ in thousands)	Year Ended December 31, 2017
	Consumer and Business Banking		Commercial Banking		Other		Total
Noninterest income:
Revenue from contracts with customers:
Deposit account fees:
Deposit service charges and related fee income	$	24,109	$	11,476	$	464	$	36,049
Card income	3,465		785		—		4,250
Wealth management fees	12,218		1,756		—		13,974
Total revenue from contracts with customers	39,792		14,017		464		54,273
Other sources of noninterest income (1)	14,659		96,072		92,744		203,475
Total noninterest income	$	54,451	$	110,089	$	93,208	$	257,748

(1) Primarily represents revenue from contracts with customers that are out of the scope of ASC 606, Revenue from Contracts with Customers.

Generally, the Company recognizes revenue from contracts with customers when it satisfies its performance obligations. The Company’s performance obligations are typically satisfied as services are rendered. The Company generally records contract liabilities, or deferred revenue, when payments from customers are received or due in advance of providing services. The Company records contract assets when services are provided to customers before payment is received or before payment is due. Since the Company receives payments for its services during the period or at the time services are provided, there were no contract assets or contract liabilities as of both December 31, 2019 and 2018.

The major revenue streams by fee type that are within the scope of ASC 606 presented in the above tables are described in additional detail below:

Deposit Account Fees — Deposit Service Charges and Related Fee Income

The Company offers a range of deposit products to individuals and businesses, which includes savings, money market, checking and time deposit accounts. The deposit account services include ongoing account maintenance, as well as certain optional services such as automated teller machine usage, wire transfer services or check orders. In addition, treasury management and business account analysis services are offered to commercial deposit customers. The monthly account fees may vary with the amount of average monthly deposit balances maintained, or the Company may charge a fixed monthly account maintenance fee if certain average balances are not maintained. In addition, each time a deposit customer selects an optional service, the Company may earn transactional fees, generally recognized by the Company at the point in time when the transaction occurs. For business analysis accounts, commercial deposit customers receive an earnings credit based on their account balance, which can be used to offset the cost of banking and treasury management services. Business analysis accounts that are assessed fees in excess of earnings credits received are typically charged at the end of each month, after all transactions are known and the credits are calculated.

Deposit Account Fees — Card Income

Card income is comprised of merchant referral fees and interchange income. For merchant referral fees, the Company provides marketing and referral services to acquiring banks for merchant card processing services and earns variable referral fees based on transaction activities. The Company satisfies its performance obligation over time as the Company identifies, solicits, and refers business customers who are provided such services. The Company receives monthly fees net of consideration it pays to the acquiring bank performing the merchant card processing services. The Company recognizes revenue on a monthly basis when the uncertainty associated with the variable referral fees is resolved after the Company receives monthly statements from the acquiring bank. For interchange income, the Company, as a card issuer, has a stand ready performance obligation to authorize, clear, and settle card transactions. The Company earns, or pays, interchange fees, which are percentage-based on each transaction, and based on rates published by the corresponding payment network for transactions processed using their network. The Company measures its progress toward the satisfaction of its performance obligation over time, as services are rendered, and the Company provides continuous access to this service and settles transactions as its customer or the payment network requires. Interchange income is presented net of direct costs paid to the customer and entities in their distribution chain, which are transaction-based expenses such as rewards program expenses and certain network costs. Revenue is recognized when the net profit is determined by the payment networks at the end of each day.

Wealth Management Fees

The Company employs financial consultants to provide investment planning services for customers including wealth management services, asset allocation strategies, portfolio analysis and monitoring, investment strategies, and risk management strategies. The fees the Company earns are variable and are generally received monthly.  The Company recognizes revenue for the services performed at quarter-end based on actual transaction details received from the broker-dealer the Company engages.

Practical Expedients and Exemptions

The Company applies the practical expedient in ASC 606-10-50-14 and does not disclose the value of unsatisfied performance obligations as the Company’s contracts with customers generally have a term that is less than one year, are open-ended with a cancellation period that is less than one year, or allow the Company to recognize revenue in the amount to which the Company has the right to invoice.

In addition, given the short-term nature of the contracts, the Company also applies the practical expedient in ASC 606-10-32-18 and does not adjust the consideration from customers for the effects of a significant financing component, if at contract inception the period between when the entity transfers the goods or services and when the customer pays for that good or service is one year or less.

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Federal Home Loan Bank Advances and Long-Term Debt (FHLB Advances) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
FHLB advances	$ 745,915	$ 326,172
Available borrowing capacity from FHLB advances	$ 6,830,000	$ 6,110,000
FHLB Advances
Debt Instrument [Line Items]
Weighted-average rate (as a percent)	2.19%	2.87%
FHLB advances that will mature in the next five years
2020	$ 100,000
2021	400,000
2022	$ 245,900
FHLB Advances | Minimum
Debt Instrument [Line Items]
Variable interest rate	1.82%	1.79%
FHLB Advances | Maximum
Debt Instrument [Line Items]
Variable interest rate	3.13%	2.98%

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Revenue from Contracts with Customers Contract assets and contract liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Contract with Customer, Asset, Gross, Noncurrent	$ 0	$ 0

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The Company sponsors a defined contribution plan, the East West Bank Employees 401(k) Savings Plan (the “401(k) Plan”), designed to provide retirement benefits financed by participants’ tax deferred contributions for the benefits of its employees. A Roth 401(k) investment option is also available to the participants, with contributions to be made on an after-tax basis. Under the 401(k) Plan, after three months of service, eligible employees may elect to defer up to 80% of their compensation before taxes, up to the dollar limit imposed by the IRS for tax purposes. Participants can also designate a part or all of their contributions as Roth 401(k) contributions. Effective as of April 1, 2019, the Company matches 100% of the first 6% of the Plan participant’s deferred compensation. The Company’s contributions to the Plan are determined annually by the Board of Directors in accordance with the Plan requirements and are invested based on employee investment elections. Plan participants become vested in matching contributions received from the Company at the rate of 20% per year for each full year of service, such that the Plan participants become 100% vested after five years of credited service. For the Plan years ended December 31, 2019, 2018 and 2017, the Company expensed $14.0 million, $9.9 million and $8.9 million, respectively.

During 2002, the Company adopted a Supplemental Executive Retirement Plan (“SERP”) pursuant to which the Company will pay supplemental pension benefits to certain executive officers designated by the Board of Directors upon retirement based upon the officers’ years of service and compensation. The SERP meets the definition of a pension plan per ASC 715-30, Compensation — Retirement Benefits — Defined Benefit Plans — Pension. The SERP is an unfunded, non-qualified plan under which the participants have no rights beyond those of a general creditor of the Company, and there are no specific assets set aside by the Company in connection with the plan. As of December 31, 2019, there were no additional benefits to be accrued for under the SERP. As of each of December 31, 2019 and 2018, there was one executive officer remaining under the SERP. Benefits expensed and accrued for the years ended December 31, 2019, 2018 and 2017 were $333 thousand, $332 thousand and $331 thousand, respectively. The benefit obligation was $4.2 million as of both December 31, 2019 and 2018. The following table presents a summary of expected SERP payments to be paid for the next five years and thereafter as of December 31, 2019:

Years Ending December 31,	Amount ($ in thousands)
2020	$	339
2021	349
2022	359
2023	370
2024	381
Thereafter	7,103
Total	$	8,901

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Business Segments

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Business Segments

Business Segments

The Company organizes its operations into three reportable operating segments: (1) Consumer and Business Banking; (2) Commercial Banking; and (3) Other. These segments are defined by the type of customers and the related products and services provided, and reflect how financial information is currently evaluated by management. Operating segment results are based on the Company’s internal management reporting process, which reflects assignments and allocations of certain balance sheet and income statement items. The information presented is not indicative of how the segments would perform if they operated as independent entities due to the interrelationships among the segments.

The Consumer and Business Banking segment primarily provides financial products and services to consumer and commercial customers through the Company’s domestic branch network. This segment offers consumer and commercial deposits, mortgage and home equity loans, and other products and services. It also originates commercial loans for small and medium-sized enterprises through the Company’s branch network. Other products and services provided by this segment include wealth management, cash management and foreign exchange services.

The Commercial Banking segment primarily generates commercial loans and deposits. Commercial loan products include commercial business loans and lines of credit, trade finance loans and letters of credit, CRE loans, construction lending, affordable housing loans and letters of credit, asset-based lending, and equipment financings. Commercial deposit products and other financial services include cash management, foreign exchange services, and interest rate and commodity risk hedging.

The remaining centralized functions, including the corporate treasury activities of the Company and eliminations of inter-segment amounts, have been aggregated and included in the Other segment, which provides broad administrative support to the two core segments; the Consumer and Business Banking and the Commercial Banking segments.

The Company utilizes an internal reporting process to measure the performance of the three operating segments within the Company. The internal reporting process derives operating segment results by utilizing allocation methodologies for revenue and expenses. Net interest income of each segment represents the difference between actual interest earned on assets and interest incurred on liabilities of the segment, adjusted for funding charges or credits through the Company’s internal funds transfer pricing (“FTP”) process. Noninterest income and noninterest expense directly attributable to a business segment are assigned to that segment. Indirect costs, including technology-related costs and corporate overhead, are allocated based on a segment’s estimated usage using factors, including but not limited to, full-time equivalent employees, net interest income, and loan and deposit volume. Charge-offs are allocated to the segment directly associated with the loans charged off, and the remaining provision for credit losses is allocated to each segment based on loan volume. The Company’s internal reporting process utilizes a full-allocation methodology. Under this methodology, corporate expenses and indirect expenses incurred by the Other segment are allocated to the Consumer and Business Banking and the Commercial Banking segments, except certain corporate treasury-related expenses and insignificant unallocated expenses.

The corporate treasury function within the Other segment is responsible for liquidity and interest rate management of the Company. The Company’s internal FTP process is also managed by the corporate treasury function within the Other segment. The process is formulated with the goal of encouraging loan and deposit growth that is consistent with the Company’s overall profitability objectives, as well as to provide a reasonable and consistent basis for the measurement of its business segments’ net interest margins and profitability. The FTP process charges a cost to fund loans (“FTP charges for loans”) and allocates credits for funds provided from deposits (“FTP credits for deposits”) using internal FTP rates. FTP charges for loans are determined based on matched cost of funds that are tied to the pricing and term characteristic of the loans. FTP credits for deposits are based on matched funding credit rates that are tied to the implied or stated maturity of the deposits. These FTP credits reflect the long-term value to be generated by the deposits. The net spread between the total internal FTP charges and credits is recorded as part of net interest income in the Other segment. The FTP process transfers the corporate interest rate risk exposure to the treasury function within the Other segment, where such exposures are centrally managed.

The Company’s internal FTP assumptions and methodologies are reviewed at least annually to ensure that the process is reflective of current market conditions. During the first quarter of 2019, the Company enhanced its segment cost allocation methodology related to stock compensation expense and bonus accrual. Effective the first quarter of 2019, stock compensation expense is allocated to all three segments, whereas it was previously recorded in the Other segment as a corporate expense. In addition, bonus expense is now allocated at a more granular level at the segment level at the time of accrual. For comparability, segment information for the fiscal years ended December 31, 2018 and 2017 have been restated to conform to the current presentation. During the third quarter of 2019, the Company enhanced its FTP methodology related to deposits by setting a minimum floor rate for the FTP credits paid for deposits in consideration of the flattened and inverted yield curve. This methodology has been retrospectively applied to segment financial results throughout the year of 2019. This change in FTP methodology related to deposits had no impact on 2018 and 2017 segment results.

The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2019, 2018 and 2017:

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2019
Net interest income before provision for credit losses	$	696,551	$	651,413	$	119,849	$	1,467,813
Provision for credit losses	14,178		84,507		—		98,685
Noninterest income	57,920		134,622		16,835		209,377
Noninterest expense	343,001		263,064		128,523		734,588
Segment income before income taxes	397,292		438,464		8,161		843,917
Segment net income	$	284,161	$	313,833	$	76,041	$	674,035
As of December 31, 2019
Segment assets	$	11,520,586	$	25,501,534	$	7,173,976	$	44,196,096

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2018
Net interest income before provision for credit losses	$	727,215	$	605,650	$	53,643		$	1,386,508
Provision for credit losses	9,364		54,891		—			64,255
Noninterest income	85,607		110,287		15,015			210,909
Noninterest expense	341,396		237,520		135,550			714,466
Segment income (loss) before income taxes	462,062		423,526		(66,892		)	818,696
Segment net income	$	330,683	$	303,553	$	69,465		$	703,701
As of December 31, 2018
Segment assets	$	10,587,621	$	23,761,469	$	6,693,266		$	41,042,356

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other			Total
Year Ended December 31, 2017
Net interest income before provision for credit losses	$	590,821	$	553,817	$	40,431		$	1,185,069
Provision for credit losses	1,812		44,454		—			46,266
Noninterest income	54,451		110,089		93,208			257,748
Noninterest expense	323,318		200,153		137,980			661,451
Segment income (loss) before income taxes	320,142		419,299		(4,341		)	735,100
Segment net income	$	187,571	$	246,404	$	71,649		$	505,624
As of December 31, 2017
Segment assets	$	9,316,587	$	21,431,472	$	6,373,504		$	37,121,563

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Income Taxes (Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for loan losses	$ 109,903	$ 96,876
Investments in qualified affordable housing partnerships, tax credit and other investments, net	11,190	3,691
Deferred compensation	23,816	18,724
Interest income on nonaccrual loans	9,527	8,602
State taxes	5,848	4,506
Unrealized gains/losses on securities	324	20,233
Tax credit carryforwards	0	26,831
Premises and equipment	1,578	1,887
Deferred gain	0	4,476
Lease liability	35,948	2,604
Other	641	6,178
Total gross deferred tax assets	198,775	194,608
Valuation allowance	(21)	(128)
Total deferred tax assets, net of valuation allowance	198,754	194,480
Deferred tax liabilities:
Equipment lease financing	30,669	30,523
Investments in qualified affordable housing partnerships, tax credit and other investments, net	12,301	30,706
Core deposit intangibles	3,032	4,427
FHLB stock dividends	1,854	1,866
Mortgage servicing assets	1,839	2,390
Acquired debt	1,679	1,771
Prepaid expenses	1,100	1,207
Premises and equipment	1,890	1,078
Operating lease right-of-use assets	34,313
Other	3,590	2,872
Total gross deferred tax liabilities	92,267	76,840
Net deferred tax assets	$ 106,487	$ 117,640