10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period endedSeptember 30, 2017

OR

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to

Commission File Number: 001-35039

BankUnited, Inc.

(Exact name of registrant as specified in its charter) 

Delaware	27-0162450
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

14817 Oak Lane, Miami Lakes, FL	33016
(Address of principal executive offices)	(Zip Code)

 Registrant’s telephone number, including area code: (305) 569-2000

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  ý  No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).  Yes  ý  No  o

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

Large accelerated filer ý	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
	Emerging growth company o

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 o

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date. 

Class	November 6, 2017
Common Stock, $0.01 Par Value	106,820,503

BANKUNITED, INC.

Form 10-Q

For the Quarter Ended September 30, 2017

TABLE OF CONTENTS

		Page
	Glossary of Defined Terms	ii
PART I.	FINANCIAL INFORMATION
ITEM 1.	Financial Statements (Unaudited)
	Consolidated Balance Sheets	1
	Consolidated Statements of Income	2
	Consolidated Statements of Comprehensive Income	3
	Consolidated Statements of Cash Flows	4
	Consolidated Statements of Stockholders’ Equity	6
	Notes to Consolidated Financial Statements	7
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	46
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	80
ITEM 4.	Controls and Procedures	80
PART II.	OTHER INFORMATION
ITEM 1.	Legal Proceedings	81
ITEM 1A.	Risk Factors	81
ITEM 6.	Exhibits	82
SIGNATURES		83

i

GLOSSARY OF DEFINED TERMS

The following acronyms and terms may be used throughout this Form 10-Q, including the consolidated financial statements and related notes.

ACI	Loans acquired with evidence of deterioration in credit quality since origination (Acquired Credit Impaired)
ALCO	Asset/Liability Committee
ALLL	Allowance for loan and lease losses
AOCI	Accumulated other comprehensive income
ARM	Adjustable rate mortgage
ASC	Accounting Standards Codification
ASU	Accounting Standards Update
BKU	BankUnited, Inc.
BankUnited	BankUnited, National Association
The Bank	BankUnited, National Association
Bridge	Bridge Funding Group, Inc.
CET1	Common Equity Tier 1 capital
CECL	Current expected credit losses
CME	Chicago Mercantile Exchange
CMOs	Collateralized mortgage obligations
Commercial Shared-Loss Agreement	A commercial and other loans shared-loss agreement entered into with the FDIC in connection with the FSB Acquisition
Covered assets	Assets covered under the Loss Sharing Agreements
Covered loans	Loans covered under the Loss Sharing Agreements
EPS	Earnings per common share
EVE	Economic value of equity
FASB	Financial Accounting Standards Board
FDIA	Federal Deposit Insurance Act
FDIC	Federal Deposit Insurance Corporation
FEMA	Federal Emergency Management Agency
FHLB	Federal Home Loan Bank
FICO	Fair Isaac Corporation (credit score)
FRB	Federal Reserve Bank
FSB Acquisition	Acquisition of substantially all of the assets and assumption of all of the non-brokered deposits and substantially all of the other liabilities of BankUnited, FSB from the FDIC on May 21, 2009
GAAP	U.S. generally accepted accounting principles
GDP	Gross Domestic Product
HAMP	Home Affordable Modification Program
IPO	Initial public offering
ISDA	International Swaps and Derivatives Association
LIBOR	London InterBank Offered Rate
LIHTC	Low Income Housing Tax Credits
Loss Sharing Agreements	Two loss sharing agreements entered into with the FDIC in connection with the FSB Acquisition
LTV	Loan-to-value
MBS	Mortgage-backed securities
MSA	Metropolitan Statistical Area

ii

MSRs	Mortgage servicing rights
New Loans	Loans originated or purchased since the FSB Acquisition
Non-ACI	Loans acquired without evidence of deterioration in credit quality since origination
NSF	Non-sufficient funds
NYTLC	New York City Taxi and Limousine Commission
OCC	Office of the Comptroller of the Currency
OREO	Other real estate owned
OTTI	Other-than-temporary impairment
PSU	Performance Share Unit
Pinnacle	Pinnacle Public Finance, Inc.
RSU	Restricted Share Unit
SBA	U.S. Small Business Administration
SBF	Small Business Finance Unit
SEC	Securities and Exchange Commission
Single Family Shared-Loss Agreement	A single-family loan shared-loss agreement entered into with the FDIC in connection with the FSB Acquisition
TDR	Troubled-debt restructuring
UPB	Unpaid principal balance
2014 Plan	2014 Omnibus Equity Incentive Plan

iii

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS - UNAUDITED

(In thousands, except share and per share data)

	September 30, 2017			December 31, 2016
ASSETS
Cash and due from banks:
Non-interest bearing	$	34,883		$	40,260
Interest bearing	3,714			35,413
Interest bearing deposits at Federal Reserve Bank	254,004			372,640
Cash and cash equivalents	292,601			448,313
Investment securities available for sale, at fair value	6,893,472			6,073,584
Investment securities held to maturity	10,000			10,000
Non-marketable equity securities	270,239			284,272
Loans held for sale	31,507			41,198
Loans (including covered loans of $537,976 and $614,042)	20,610,430			19,395,394
Allowance for loan and lease losses	(158,573		)	(152,953		)
Loans, net	20,451,857			19,242,441
FDIC indemnification asset	349,617			515,933
Bank owned life insurance	248,876			239,736
Equipment under operating lease, net	588,207			539,914
Deferred tax asset, net	23,910			62,940
Goodwill and other intangible assets	77,857			78,047
Other assets	316,688			343,773
Total assets	$	29,554,831		$	27,880,151
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities:
Demand deposits:
Non-interest bearing	$	3,096,492		$	2,960,591
Interest bearing	1,828,809			1,523,064
Savings and money market	9,964,242			9,251,593
Time	6,333,701			5,755,642
Total deposits	21,223,244			19,490,890
Federal Home Loan Bank advances	4,871,000			5,239,348
Notes and other borrowings	402,828			402,809
Other liabilities	434,270			328,675
Total liabilities	26,931,342			25,461,722
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.01 per share, 400,000,000 shares authorized; 106,821,902 and 104,166,945 shares issued and outstanding	1,068			1,042
Paid-in capital	1,492,790			1,426,459
Retained earnings	1,077,042			949,681
Accumulated other comprehensive income	52,589			41,247
Total stockholders' equity	2,623,489			2,418,429
Total liabilities and stockholders' equity	$	29,554,831		$	27,880,151

The accompanying notes are an integral part of these consolidated financial statements.

1

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED

(In thousands, except per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Interest income:
Loans	$	253,815		$	227,233		$	739,586		$	662,439
Investment securities	51,851			39,712			141,624			109,963
Other	3,777			3,036			10,606			8,850
Total interest income	309,443			269,981			891,816			781,252
Interest expense:
Deposits	45,919			30,968			120,161			86,427
Borrowings	22,260			17,278			60,209			51,939
Total interest expense	68,179			48,246			180,370			138,366
Net interest income before provision for loan losses	241,264			221,735			711,446			642,886
Provision for (recovery of) loan losses (including $261, $(445), $2,693 and $(1,119) for covered loans)	37,854			24,408			63,573			42,449
Net interest income after provision for loan losses	203,410			197,327			647,873			600,437
Non-interest income:
Income from resolution of covered assets, net	6,400			8,883			22,066			26,426
Net gain (loss) on FDIC indemnification	(4,838		)	993			(14,174		)	(9,410		)
Service charges and fees	4,938			5,171			15,554			14,529
Gain (loss) on sale of loans, net (including $0, $(10,033), $(1,582) and $(14,895) related to covered loans)	2,447			(7,947		)	6,601			(7,360		)
Gain on investment securities available for sale, net	26,931			3,008			29,194			10,065
Lease financing	13,287			11,188			40,067			32,762
Other non-interest income	4,161			3,779			12,055			10,118
Total non-interest income	53,326			25,075			111,363			77,130
Non-interest expense:
Employee compensation and benefits	58,327			55,162			178,386			166,374
Occupancy and equipment	18,829			18,867			56,689			57,199
Amortization of FDIC indemnification asset	45,225			38,957			135,351			116,711
Deposit insurance expense	5,764			4,943			16,827			12,866
Professional fees	2,748			3,884			12,573			10,119
Telecommunications and data processing	3,452			3,746			10,481			10,800
Depreciation of equipment under operating lease	8,905			6,855			25,655			20,004
Other non-interest expense	13,455			15,590			37,735			40,151
Total non-interest expense	156,705			148,004			473,697			434,224
Income before income taxes	100,031			74,398			285,539			243,343
Provision for income taxes	32,252			23,550			89,060			80,896
Net income	$	67,779		$	50,848		$	196,479		$	162,447
Earnings per common share, basic (see Note 2)	$	0.62		$	0.47		$	1.79		$	1.52
Earnings per common share, diluted (see Note 2)	$	0.62		$	0.47		$	1.79		$	1.50
Cash dividends declared per common share	$	0.21		$	0.21		$	0.63		$	0.63

The accompanying notes are an integral part of these consolidated financial statements.

2

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - UNAUDITED

(In thousands)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net income	$	67,779		$	50,848		$	196,479		$	162,447
Other comprehensive income (loss), net of tax:
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	8,557			3,216			32,826			53,490
Reclassification adjustment for net securities gains realized in income	(16,293		)	(1,820		)	(17,662		)	(6,090		)
Net change in unrealized gains on securities available for sale	(7,736		)	1,396			15,164			47,400
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period	(170		)	5,055			(8,337		)	(34,948		)
Reclassification adjustment for net losses realized in income	1,210			2,264			4,515			7,896
Net change in unrealized losses on derivative instruments	1,040			7,319			(3,822		)	(27,052		)
Other comprehensive income (loss)	(6,696		)	8,715			11,342			20,348
Comprehensive income	$	61,083		$	59,563		$	207,821		$	182,795

The accompanying notes are an integral part of these consolidated financial statements.

3

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED

(In thousands)

	Nine Months Ended September 30,
	2017			2016
Cash flows from operating activities:
Net income	$	196,479		$	162,447
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and accretion, net	(71,111		)	(90,360		)
Provision for loan losses	63,573			42,449
Income from resolution of covered assets, net	(22,066		)	(26,426		)
Net loss on FDIC indemnification	14,174			9,410
(Gain) loss on sale of loans, net	(6,601		)	7,360
Increase in cash surrender value of bank owned life insurance	(4,647		)	(2,973		)
Gain on investment securities available for sale, net	(29,194		)	(10,065		)
Equity based compensation	14,337			13,418
Depreciation and amortization	45,204			38,971
Deferred income taxes	31,625			33,958
Proceeds from sale of loans held for sale	126,778			121,968
Loans originated for sale, net of repayments	(109,588		)	(108,075		)
Other:
(Increase) decrease in other assets	15,743			(9,502		)
Increase (decrease) in other liabilities	(33,546		)	44,708
Net cash provided by operating activities	231,160			227,288
Cash flows from investing activities:
Purchase of investment securities available for sale	(2,355,872		)	(2,224,174		)
Proceeds from repayments and calls of investment securities available for sale	861,618			457,610
Proceeds from sale of investment securities available for sale	827,353			753,756
Purchase of non-marketable equity securities	(185,718		)	(178,813		)
Proceeds from redemption of non-marketable equity securities	199,751			115,388
Purchases of loans	(949,294		)	(936,882		)
Loan originations, repayments and resolutions, net	(192,075		)	(1,389,435		)
Proceeds from sale of loans, net	98,404			120,537
Decrease in FDIC indemnification asset for claims filed	16,768			30,829
Acquisition of equipment under operating lease, net	(73,948		)	(52,399		)
Other investing activities	(31,718		)	(19,577		)
Net cash used in investing activities	(1,784,731		)	(3,323,160		)
				(Continued)

The accompanying notes are an integral part of these consolidated financial statements.

4

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED (Continued)

(In thousands)

	Nine Months Ended September 30,
	2017			2016
Cash flows from financing activities:
Net increase in deposits	1,732,354			1,897,808
Additions to Federal Home Loan Bank advances	3,921,000			3,360,000
Repayments of Federal Home Loan Bank advances	(4,290,000		)	(2,150,000		)
Dividends paid	(68,583		)	(67,342		)
Exercise of stock options	61,519			222
Other financing activities	41,569			49,638
Net cash provided by financing activities	1,397,859			3,090,326
Net increase (decrease) in cash and cash equivalents	(155,712		)	(5,546		)
Cash and cash equivalents, beginning of period	448,313			267,500
Cash and cash equivalents, end of period	$	292,601		$	261,954
Supplemental disclosure of cash flow information:
Interest paid	$	169,759		$	132,398
Income taxes paid, net	$	46,320		$	8,168
Supplemental schedule of non-cash investing and financing activities:
Transfers from loans to other real estate owned and other repossessed assets	$	6,738		$	11,679
Dividends declared, not paid	$	23,045		$	22,482
Unsettled purchases of investment securities available for sale	$	107,500		$	—

The accompanying notes are an integral part of these consolidated financial statements.

5

BANKUNITED, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - UNAUDITED

(In thousands, except share data)

	Common Shares Outstanding		Common Stock			Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income		Total Stockholders’ Equity
Balance at December 31, 2016	104,166,945		$	1,042		$	1,426,459		$	949,681		$	41,247	$	2,418,429
Comprehensive income	—		—			—			196,479			11,342		207,821
Dividends	—		—			—			(69,118		)	—		(69,118		)
Equity based compensation	618,306		6			12,103			—			—		12,109
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(267,457	)	(3		)	(7,268		)	—			—		(7,271		)
Exercise of stock options	2,304,108		23			61,496			—			—		61,519
Balance at September 30, 2017	106,821,902		$	1,068		$	1,492,790		$	1,077,042		$	52,589	$	2,623,489
Balance at December 31, 2015	103,626,255		$	1,036		$	1,406,786		$	813,894		$	22,182	$	2,243,898
Comprehensive income	—		—			—			162,447			20,348		182,795
Dividends	—		—			—			(67,444		)	—		(67,444		)
Equity based compensation	644,888		6			13,250			—			—		13,256
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(139,718	)	(1		)	(483		)	—			—		(484		)
Exercise of stock options	10,000		—			222			—			—		222
Tax benefits from dividend equivalents and equity based compensation	—		—			847			—			—		847
Balance at September 30, 2016	104,141,425		$	1,041		$	1,420,622		$	908,897		$	42,530	$	2,373,090

The accompanying notes are an integral part of these consolidated financial statements.

6

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Note 1    Basis of Presentation and Summary of Significant Accounting Policies

BankUnited, Inc. is a national bank holding company with one wholly-owned subsidiary, BankUnited, collectively, the Company. BankUnited, a national banking association headquartered in Miami Lakes, Florida, provides a full range of banking and related services to individual and corporate customers through 90 banking centers located in 15 Florida counties and 6 banking centers located in the New York metropolitan area at September 30, 2017. The Bank also offers certain commercial lending and deposit products through national platforms.

In connection with the FSB Acquisition, BankUnited entered into two loss sharing agreements with the FDIC. The Loss Sharing Agreements consist of the Single Family Shared-Loss Agreement and the Commercial Shared-Loss Agreement. Assets covered by the Loss Sharing Agreements are referred to as covered assets or, in certain cases, covered loans. The Single Family Shared-Loss Agreement provides for FDIC loss sharing and the Bank’s reimbursement for recoveries to the FDIC through May 21, 2019 for single family residential loans and OREO. Loss sharing under the Commercial Shared-Loss Agreement terminated on May 21, 2014. The Commercial Shared-Loss Agreement continued to provide for the Bank’s reimbursement of recoveries to the FDIC through June 30, 2017 for all other covered assets, including commercial real estate, commercial and industrial and consumer loans, certain investment securities and commercial OREO. Pursuant to the terms of the Loss Sharing Agreements, the covered assets are subject to a stated loss threshold whereby the FDIC will reimburse BankUnited for 80% of losses related to the covered assets up to $4.0 billion and 95% of losses in excess of this amount, beginning with the first dollar of loss incurred.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X of the SEC. Accordingly, they do not include all of the information and footnotes required for a fair presentation of financial position, results of operations and cash flows in conformity with GAAP and should be read in conjunction with the Company’s consolidated financial statements and the notes thereto appearing in BKU’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the SEC. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected in future periods. 

Certain amounts presented for prior periods have been reclassified to conform to the current period presentation.

Accounting Estimates

In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates.

Significant estimates include the ALLL, the amount and timing of expected cash flows from covered assets and the FDIC indemnification asset, and the fair values of investment securities and other financial instruments. Management has used information provided by third party valuation specialists to assist in the determination of the fair values of investment securities.

New Accounting Pronouncements Adopted

ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments in this ASU simplified several aspects of the accounting for share-based payment transactions. The Company adopted this ASU in the first quarter of 2017. The amendment requiring the recognition of excess tax benefits and deficiencies as income tax benefit or expense in the income statement as opposed to being recognized as additional paid-in-capital was applied prospectively and resulted in the recognition of $0.3 million and $3.2 million in excess tax benefits in the consolidated statement of income line item "Provision for income taxes" for the three and nine months ended September 30, 2017, increasing net income by the same amount in each period. The adoption had no impact on basic and diluted earnings per share for the three months ended September 30, 2017 and increased basic and diluted earnings per share by $0.02 and $0.03, respectively, for the nine months ended September 30, 2017. The Company retrospectively adopted the amendments requiring the classification of excess tax benefits and deficiencies with other income tax cash flows as operating activities and cash paid when directly withholding shares as financing activities in the accompanying consolidated statements of cash flows; the impact was not material. The Company elected to continue its practice of estimating the number of awards expected to vest in determining the amount of compensation cost to be recognized related to share based payment transactions.

7

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

ASU No. 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The amendments in this ASU require certain premiums on callable debt securities to be amortized to the earliest call date. The amortization period for callable debt securities purchased as a discount will not be impacted. The Company early-adopted this ASU in the first quarter of 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

ASU No. 2016-06, Derivatives and Hedging (Topic 815):Contingent Put and Call Options in Debt Instruments. The amendments in this ASU clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. A company performing the assessment under these amendments is required to assess the embedded call (put) options solely in accordance with a four-step decision sequence, without also considering whether the contingency is related to interest rates or credit risks. The Company adopted this ASU in the first quarter of 2017 with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, an amendment to simplify the subsequent quantitative measurement of goodwill by eliminating step two from the goodwill impairment test. As amended, an entity recognizes an impairment charge for the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform the qualitative test for a reporting unit to determine if the quantitative impairment test is necessary. The Company early adopted this ASU in the third quarter of 2017, concurrent with performance of its annual goodwill impairment test, with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness after initial qualification. For qualifying cash flow and net investment hedges, this means that the entire change in the fair value of the hedging instrument included in the assessment of hedge effectiveness will be recorded in other comprehensive income (OCI), and amounts deferred in OCI will be reclassified to earnings in the same income statement line item that is used to present the earnings effect of the hedged item when the hedged item affects earnings. The Company will have until the end of the first quarter in which a hedge is designated to perform an initial assessment of a hedge’s effectiveness. The new guidance also permits a qualitative effectiveness assessment for certain hedges instead of a quantitative test, such as a regression analysis, if the company can reasonably support an expectation of high effectiveness throughout the term of the hedge. In addition, in order to better align an entity's risk management activities and financial reporting for hedging relationships, the ASU allows for more hedging strategies to be eligible for hedge accounting. From a disclosure standpoint, to help users of the financial statements better understand the effects of hedge accounting, the guidance requires revised tabular disclosures that focus on the effect of hedge accounting by income statement line, and eliminates today’s requirement to disclose hedge ineffectiveness because this amount is no longer separately measured. The Company early adopted this ASU during the quarter ended September 30, 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

Recent Accounting Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which will supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Accounting Standards Codification. The amendments in this update affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets unless those contracts, including leases and insurance contracts, are within the scope of other standards. The amendments establish a core principle requiring the recognition of revenue to depict the transfer of goods or services to customers in an amount reflecting the consideration to which the entity expects to be entitled in exchange for such goods or services. The amendments also require expanded disclosures concerning the nature, amount, timing and uncertainty of revenues and cash flows arising from contracts with customers. Financial instruments and lease contracts are generally outside the scope of the ASU as are revenues that are in the scope of ASC 860 "Transfers and Servicing", ASC 460 "Guarantees" and ASC 815 "Derivatives and Hedging". The FASB has issued subsequent ASUs to clarify certain aspects of ASU 2014-09, without changing the core principle of the guidance and to defer the effective date of ASU 2014-09 to annual periods and interim periods within fiscal years beginning after December 15, 2017. Although management has not finalized its evaluation of the impact of adoption of this ASU, substantially all of the Company's revenues have historically been, and are expected to continue to be, generated from activities that are outside the scope of the ASU. Therefore, management does not expect adoption to have a material impact on the Company's consolidated financial position, results of operations or cash flows.

8

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Service charges on deposit accounts, which totaled approximately $9.8 million for the nine months ended September 30, 2017, is the most significant category of revenue identified as within the scope of the ASU; management does not expect the amount and timing of recognition of such revenue to be materially impacted by adoption, which management expects to apply using the modified retrospective approach, whereby the cumulative effect of initially applying the amendments is recognized as an adjustment to opening retained earnings at the date of adoption.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in the ASU that are expected to be most applicable to the Company (1) eliminate the available for sale classification for equity securities and require investments in equity securities (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income, provided that equity investments that do not have readily determinable fair values may be re-measured at fair value upon occurrence of an observable price change or recognition of impairment, (2) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, and (3) require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. The amendments also clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity's other deferred tax assets, which is consistent with the Company's current practice. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be adopted by means of a cumulative-effect adjustment to the balance sheet, except for amendments related to equity securities without readily determinable fair values, which will be applied prospectively. Although management has not finalized its evaluation of the impact of adoption of this ASU, adoption is not expected to have any impact on the Company's consolidated financial position or cash flows, other than a cumulative effect adjustment to reclassify any unrealized gains or losses related to equity securities from AOCI to retained earnings. The carrying value of equity investments for which fair value changes will be recognized in earnings after adoption totaled $71 million and had unrealized gains of $10.0 million at September 30, 2017. Adoption of the ASU will impact the Company's disclosures about the fair value of certain financial instruments.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU require a lessee to recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for leases with terms longer than one year. Accounting applied by lessors is largely unchanged by this ASU. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2018. Early adoption is permitted; however, the Company does not intend to early adopt this ASU. Lessees and lessors are required to apply the provisions of the ASU at the beginning of the earliest period presented using a modified retrospective approach. Management has not completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, the most significant impact is expected to be the recognition, as lessee, of new right-of-use assets and lease liabilities on the consolidated balance sheet for real estate leases currently classified as operating leases.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326); Measurement of Credit Losses on Financial Instruments. The ASU introduces new guidance which makes substantive changes to the accounting for credit losses. The ASU introduces the CECL model which applies to financial assets subject to credit losses and measured at amortized cost, as well as certain off-balance sheet credit exposures. This includes loans, loan commitments, standby letters of credit, net investments in leases recognized by a lessor and held-to-maturity debt securities. The CECL model requires an entity to estimate credit losses expected over the life of an exposure, considering information about historical events, current conditions and reasonable and supportable forecasts. The ASU also modifies the current OTTI model for available for sale debt securities requiring an estimate of expected credit losses only when the fair value of an available for sale debt security is below its amortized cost. Credit losses on available for sale debt securities will be limited to the difference between the security's amortized cost basis and its fair value. The ASU also provides for a simplified accounting model for purchased financial assets with more than insignificant credit deterioration since their origination. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2019. Management has not yet completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, adoption is likely to lead to significant changes in accounting policies related to, and the methods employed in estimating, the ALLL. It is possible that the impact will be material to the Company's consolidated financial position and results of operations.

9

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU provide guidance on eight specific cash flow classification issues where there has been diversity in practice. The guidance in the ASU that is expected to be most applicable to the Company requires: (1) cash payments for debt prepayment or extinguishment costs to be classified as cash outflows for financing activities, (2) proceeds from settlement of insurance claims to be classified on the basis of the nature of the loss and (3) cash proceeds from settlement of bank-owned life insurance policies to be classified as cash flows from investing activities. Cash payments for premiums on bank-owned life insurance may be classified as cash flows for investing activities, operating activities or a combination thereof. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be applied retrospectively to each period presented. The provisions of this ASU are generally consistent with the Company's current practice and adoption is not expected to materially impact the Company's consolidated cash flows.

Note 2    Earnings Per Common Share

The computation of basic and diluted earnings per common share is presented below for the periods indicated (in thousands, except share and per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
c	2017			2016			2017			2016
Basic earnings per common share:
Numerator:
Net income	$	67,779		$	50,848		$	196,479		$	162,447
Distributed and undistributed earnings allocated to participating securities	(2,525		)	(2,031		)	(7,331		)	(6,522		)
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Denominator:
Weighted average common shares outstanding	106,809,381			104,153,018			106,488,396			104,077,932
Less average unvested stock awards	(1,101,485		)	(1,150,268		)	(1,102,381		)	(1,165,509		)
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Basic earnings per common share	$	0.62		$	0.47		$	1.79		$	1.52
Diluted earnings per common share:
Numerator:
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Adjustment for earnings reallocated from participating securities	6			(81		)	21			(264		)
Income used in calculating diluted earnings per common share	$	65,260		$	48,736		$	189,169		$	155,661
Denominator:
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Dilutive effect of stock options and executive share-based awards	365,286			558,304			479,459			699,977
Weighted average shares for diluted earnings per common share	106,073,182			103,561,054			105,865,474			103,612,400
Diluted earnings per common share	$	0.62		$	0.47		$	1.79		$	1.50

10

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Included in participating securities above are unvested shares and 3,023,314 dividend equivalent rights outstanding at September 30, 2017 that were issued in conjunction with the IPO of the Company's common stock. These dividend equivalent rights expire in 2021 and participate in dividends on a one-for-one basis.

The following potentially dilutive securities were outstanding at September 30, 2017 and 2016, but excluded from the calculation of diluted earnings per common share for the periods indicated because their inclusion would have been anti-dilutive: 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Unvested shares and share units	1,111,300	1,296,848	1,111,300	1,296,848
Stock options and warrants	1,850,279	1,851,376	1,850,279	1,851,376

Note 3    Investment Securities

Investment securities available for sale consisted of the following at the dates indicated (in thousands):

	September 30, 2017
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	24,969	$	—	$	(12	)	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	2,332,616		16,762		(691		)	2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	139,966		1,067		(1,813		)	139,220
Private label residential MBS and CMOs	507,381		20,812		(335		)	527,858
Private label commercial MBS	1,140,465		14,646		(1,510		)	1,153,601
Single family rental real estate-backed securities	566,635		6,425		(112		)	572,948
Collateralized loan obligations	695,414		4,905		—			700,319
Non-mortgage asset-backed securities	80,255		2,382		—			82,637
Preferred stocks	60,716		10,000		—			70,716
State and municipal obligations	666,013		14,370		(3,368		)	677,015
SBA securities	572,540		14,152		(17		)	586,675
Other debt securities	4,056		4,783		—			8,839
	$	6,791,026	$	110,304	$	(7,858	)	$	6,893,472

11

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

	December 31, 2016
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	4,999	$	6	$	—		$	5,005
U.S. Government agency and sponsored enterprise residential MBS	1,513,028		15,922		(1,708		)	1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	126,754		670		(2,838		)	124,586
Private label residential MBS and CMOs	334,167		42,939		(2,008		)	375,098
Private label commercial MBS	1,180,386		9,623		(2,385		)	1,187,624
Single family rental real estate-backed securities	858,339		4,748		(1,836		)	861,251
Collateralized loan obligations	487,678		868		(1,250		)	487,296
Non-mortgage asset-backed securities	187,660		2,002		(2,926		)	186,736
Preferred stocks	76,180		12,027		(4		)	88,203
State and municipal obligations	705,884		3,711		(11,049		)	698,546
SBA securities	517,129		7,198		(421		)	523,906
Other debt securities	3,999		4,092		—			8,091
	$	5,996,203	$	103,806	$	(26,425	)	$	6,073,584

Investment securities held to maturity at September 30, 2017 and December 31, 2016 consisted of one State of Israel bond with a carrying value of $10 million. Fair value approximated carrying value at September 30, 2017 and December 31, 2016. The bond matures in 2024.

At September 30, 2017, contractual maturities of investment securities available for sale, adjusted for anticipated prepayments of mortgage-backed and other pass-through securities, were as follows (in thousands):

	Amortized Cost		Fair Value
Due in one year or less	$	684,986	$	697,034
Due after one year through five years	3,363,698		3,406,609
Due after five years through ten years	2,252,239		2,282,220
Due after ten years	429,387		436,893
Preferred stocks with no stated maturity	60,716		70,716
	$	6,791,026	$	6,893,472

Based on the Company’s assumptions, the estimated weighted average life of the investment portfolio as of September 30, 2017 was 4.9 years. The effective duration of the investment portfolio as of September 30, 2017 was 1.7 years. The model results are based on assumptions that may differ from actual results. 

The carrying value of securities pledged as collateral for FHLB advances, public deposits, interest rate swaps and to secure borrowing capacity at the FRB totaled $2.5 billion and $1.8 billion at September 30, 2017 and December 31, 2016, respectively.

12

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The following table provides information about gains and losses on investment securities available for sale for the periods indicated (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Proceeds from sale of investment securities available for sale	$	399,430		$	259,571		$	827,353		$	753,756
Gross realized gains	$	28,261		$	3,471		$	30,553		$	10,528
Gross realized losses	(1,330		)	—			(1,359		)	—
Net realized gain	26,931			3,471			29,194			10,528
OTTI	—			(463		)	—			(463		)
Gain on investment securities available for sale, net	$	26,931		$	3,008		$	29,194		$	10,065

During the three and nine months ended September 30, 2016, OTTI was recognized on two positions in one private label commercial MBS. These positions were in unrealized loss positions at September 30, 2016 and the Company intended to sell the security before recovery of the amortized cost basis.

The following tables present the aggregate fair value and the aggregate amount by which amortized cost exceeded fair value for investment securities in unrealized loss positions, aggregated by investment category and length of time that individual securities had been in continuous unrealized loss positions at the dates indicated (in thousands):

	September 30, 2017
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities	$	24,957	$	(12	)	$	—	$	—		$	24,957	$	(12	)
U.S. Government agency and sponsored enterprise residential MBS	460,806		(425		)	9,544		(266		)	470,350		(691		)
U.S. Government agency and sponsored enterprise commercial MBS	55,152		(1,783		)	14,270		(30		)	69,422		(1,813		)
Private label residential MBS and CMOs	72,557		(217		)	5,820		(118		)	78,377		(335		)
Private label commercial MBS	124,664		(1,510		)	—		—			124,664		(1,510		)
Single family rental real estate-backed securities	14,708		(112		)	—		—			14,708		(112		)
State and municipal obligations	184,082		(3,368		)	—		—			184,082		(3,368		)
SBA securities	—		—			18,229		(17		)	18,229		(17		)
	$	936,926	$	(7,427	)	$	47,863	$	(431	)	$	984,789	$	(7,858	)

13

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

	December 31, 2016
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Government agency and sponsored enterprise residential MBS	$	191,463	$	(628	)	$	112,391	$	(1,080	)	$	303,854	$	(1,708	)
U.S. Government agency and sponsored enterprise commercial MBS	89,437		(2,838		)	—		—			89,437		(2,838		)
Private label residential MBS and CMOs	122,142		(1,680		)	8,074		(328		)	130,216		(2,008		)
Private label commercial MBS	169,535		(2,370		)	24,985		(15		)	194,520		(2,385		)
Single family rental real estate-backed securities	139,867		(842		)	176,057		(994		)	315,924		(1,836		)
Collateralized loan obligations	69,598		(402		)	173,983		(848		)	243,581		(1,250		)
Non-mortgage asset-backed securities	139,477		(2,926		)	—		—			139,477		(2,926		)
Preferred stocks	10,087		(4		)	—		—			10,087		(4		)
State and municipal obligations	448,180		(11,049		)	—		—			448,180		(11,049		)
SBA securities	4,204		(13		)	20,076		(408		)	24,280		(421		)
	$	1,383,990	$	(22,752	)	$	515,566	$	(3,673	)	$	1,899,556	$	(26,425	)

The Company monitors its investment securities available for sale for OTTI on an individual security basis. No securities were determined to be other-than-temporarily impaired during the nine months ended September 30, 2017. The Company does not intend to sell securities that are in significant unrealized loss positions at September 30, 2017 and it is not more likely than not that the Company will be required to sell these securities before recovery of the amortized cost basis, which may be at maturity. At September 30, 2017, 54 securities were in unrealized loss positions. The amount of impairment related to 20 of these securities was considered insignificant, totaling approximately $237 thousand and no further analysis with respect to these securities was considered necessary. The basis for concluding that impairment of the remaining securities was not other-than-temporary is further described below:

U.S. Government agency and sponsored enterprise residentialMBSand commercial MBS

At September 30, 2017, eight U.S. Government agency and sponsored enterprise residential MBS and four U.S. Government agency and sponsored enterprise commercial MBS were in unrealized loss positions. For five fixed rate securities, the impairment was primarily attributable to an increase in medium and long-term market interest rates subsequent to the date of acquisition. For the remaining seven variable rate securities, the amount of impairment was less than 1% of amortized cost. The timely payment of principal and interest on these securities is explicitly or implicitly guaranteed by the U.S. Government. Given the expectation of timely payment of principal and interest, the impairments were considered to be temporary.

Private label residentialMBSandCMOs

At September 30, 2017, five private label residential MBS and CMOs were in unrealized loss positions, primarily as a result of an increase in medium and long-term market interest rates subsequent to acquisition. The amount of impairment of each of the individual securities was less than 3% of amortized cost. These securities were assessed for OTTI using credit and prepayment behavioral models that incorporate CUSIP level constant default rates, voluntary prepayment rates and loss severity and delinquency assumptions. The results of these assessments were not indicative of credit losses related to any of these securities as of September 30, 2017. Given the limited severity of impairment and the expectation of timely recovery of outstanding principal, the impairments were considered to be temporary.

14

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Private label commercialMBS

At September 30, 2017, four private label commercial MBS were in unrealized loss positions. The amount of impairment of each of the individual securities was less than 3% of amortized cost. The unrealized losses were primarily attributable to increases in market interest rates since the purchase of the securities. These securities were assessed for OTTI using credit and prepayment behavioral models incorporating assumptions consistent with the collateral characteristics of each security. The results of this analysis were not indicative of expected credit losses. Given the limited severity of impairment and the expectation of timely recovery of outstanding principal, the impairments were considered to be temporary.

Single family rental real estate-backed securities

At September 30, 2017, two single family rental real estate-backed securities were in unrealized loss positions. The unrealized losses were primarily due to increases in market interest rates since the purchase of the securities. The amount of impairment of each of the individual securities was less than 2% of amortized cost. Management's analysis of the credit characteristics, including loan-to-value and debt service coverage ratios, and levels of subordination for each of the securities is not indicative of projected credit losses. Given the limited severity of impairment and the absence of projected credit losses, the impairments were considered to be temporary.

State and municipal obligations

At September 30, 2017, 11 state and municipal obligations were in unrealized loss positions. The amount of impairment of each of the individual securities was less than 5% of amortized cost. All of the securities are rated investment grade by nationally recognized statistical ratings organizations. Management's evaluation of these securities for OTTI also encompassed the review of credit scores and analysis provided by a third party firm specializing in the analysis and credit review of municipal securities. Given the absence of expected credit losses and management's ability and intent to hold the securities until recovery, the impairments were considered to be temporary.

15

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Note 4    Loans and Allowance for Loan and Lease Losses

The Company segregates its loan portfolio between covered and non-covered loans. Non-covered loans include loans originated since the FSB acquisition and commercial and consumer loans acquired in the FSB Acquisition for which loss share coverage has terminated. Covered loans are further segregated between ACI loans and non-ACI loans.

Loans consisted of the following at the dates indicated (dollars in thousands):

	September 30, 2017
				Covered Loans									Percent of Total
	Non-Covered Loans			ACI			Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,958,205		$	470,300		$	28,589		$	4,457,094		21.7	%
Home equity loans and lines of credit	1,644			5,640			37,764			45,048			0.2	%
Other consumer loans	20,166			—			—			20,166			0.1	%
	3,980,015			475,940			66,353			4,522,308			22.0	%
Commercial:
Multi-family	3,358,801			—			—			3,358,801			16.3	%
Non-owner occupied commercial real estate	4,183,275			—			—			4,183,275			20.4	%
Construction and land	271,994			—			—			271,994			1.3	%
Owner occupied commercial real estate	1,959,464			—			—			1,959,464			9.5	%
Commercial and industrial	3,900,290			—			—			3,900,290			19.0	%
Commercial lending subsidiaries	2,374,193			—			—			2,374,193			11.5	%
	16,048,017			—			—			16,048,017			78.0	%
Total loans	20,028,032			475,940			66,353			20,570,325			100.0	%
Premiums, discounts and deferred fees and costs, net	44,422			—			(4,317		)	40,105
Loans including premiums, discounts and deferred fees and costs	20,072,454			475,940			62,036			20,610,430
Allowance for loan and lease losses	(153,725		)	(1,812		)	(3,036		)	(158,573		)
Loans, net	$	19,918,729		$	474,128		$	59,000		$	20,451,857

16

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

	December 31, 2016
				Covered Loans								Percent of Total
	Non-Covered Loans			ACI		Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,422,425		$	532,348	$	36,675		$	3,991,448		20.6	%
Home equity loans and lines of credit	1,120			3,894		47,629			52,643			0.3	%
Other consumer loans	24,365			—		—			24,365			0.1	%
	3,447,910			536,242		84,304			4,068,456			21.0	%
Commercial:
Multi-family	3,824,973			—		—			3,824,973			19.8	%
Non-owner occupied commercial real estate	3,739,235			—		—			3,739,235			19.3	%
Construction and land	311,436			—		—			311,436			1.6	%
Owner occupied commercial real estate	1,736,858			—		—			1,736,858			9.0	%
Commercial and industrial	3,391,614			—		—			3,391,614			17.5	%
Commercial lending subsidiaries	2,280,685			—		—			2,280,685			11.8	%
	15,284,801			—		—			15,284,801			79.0	%
Total loans	18,732,711			536,242		84,304			19,353,257			100.0	%
Premiums, discounts and deferred fees and costs, net	48,641			—		(6,504		)	42,137
Loans including premiums, discounts and deferred fees and costs	18,781,352			536,242		77,800			19,395,394
Allowance for loan and lease losses	(150,853		)	—		(2,100		)	(152,953		)
Loans, net	$	18,630,499		$	536,242	$	75,700		$	19,242,441

Included in non-covered loans above are $38 million and $47 million at September 30, 2017 and December 31, 2016, respectively, of ACI commercial loans acquired in the FSB Acquisition.

Through two subsidiaries, the Bank provides commercial and municipal equipment and franchise financing utilizing both loan and lease structures. At September 30, 2017 and December 31, 2016, the commercial lending subsidiaries portfolio included a net investment in direct financing leases of $680 million and $643 million, respectively.

During the three and nine months ended September 30, 2017 and 2016, the Company purchased 1-4 single family residential loans totaling $312 million, $949 million, $355 million and $937 million, respectively.

At September 30, 2017, the Company had pledged real estate loans with UPB of approximately $10.5 billion and recorded investment of approximately $9.9 billion as security for FHLB advances.

At September 30, 2017 and December 31, 2016, the UPB of ACI loans was $1.2 billion and $1.5 billion, respectively. The accretable yield on ACI loans represents the amount by which undiscounted expected future cash flows exceed recorded investment. Changes in the accretable yield on ACI loans for the nine months ended September 30, 2017 and the year ended December 31, 2016 were as follows (in thousands):

Balance at December 31, 2015	$	902,565
Reclassifications from non-accretable difference	76,751
Accretion	(303,931		)
Balance at December 31, 2016	675,385
Reclassifications from non-accretable difference	72,827
Accretion	(226,251		)
Balance at September 30, 2017	$	521,961

17

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Covered loan sales

During the periods indicated, the Company sold covered residential loans to third parties on a non-recourse basis. The following table summarizes the impact of these transactions (in thousands): 

	Three Months Ended September 30,			Nine Months Ended September 30,
	2016			2017			2016
UPB of loans sold	$	61,406		$	123,737		$	176,958
Cash proceeds, net of transaction costs	$	37,047		$	98,404		$	120,537
Recorded investment in loans sold	47,080			99,986			135,432
Loss on sale of covered loans, net	$	(10,033	)	$	(1,582	)	$	(14,895	)
Gain on FDIC indemnification, net	$	8,026		$	1,266		$	11,958

There was no sale of covered loans for the three months ended September 30, 2017.

Allowance for loan and lease losses 

Activity in the ALLL is summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017										2016
	Residential and Other Consumer		Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	13,550	$	142,098		$	—	$	155,648		$	12,415		$	123,303		$	135,718
Provision for (recovery of) loan losses:
Covered loans	268		(7		)	—		261			(430		)	(15		)	(445		)
Non-covered loans	363		32,230			5,000		37,593			1,974			22,879			24,853
Total provision	631		32,223			5,000		37,854			1,544			22,864			24,408
Charge-offs:
Covered loans	—		—			—		—			(247		)	—			(247		)
Non-covered loans	—		(36,028		)	—		(36,028		)	—			(6,615		)	(6,615		)
Total charge-offs	—		(36,028		)	—		(36,028		)	(247		)	(6,615		)	(6,862		)
Recoveries:
Covered loans	31		7			—		38			9			15			24
Non-covered loans	8		1,053			—		1,061			5			1,183			1,188
Total recoveries	39		1,060			—		1,099			14			1,198			1,212
Ending balance	$	14,220	$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

18

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

	Nine Months Ended September 30,
	2017											2016
	Residential and Other Consumer			Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	11,503		$	141,450		$	—	$	152,953		$	16,211		$	109,617		$	125,828
Provision for (recovery of) loan losses:
Covered loans	2,738			(45		)	—		2,693			(1,074		)	(45		)	(1,119		)
Non-covered loans	(52		)	55,932			5,000		60,880			(420		)	43,988			43,568
Total provision	2,686			55,887			5,000		63,573			(1,494		)	43,943			42,449
Charge-offs:
Covered loans	(55		)	—			—		(55		)	(1,086		)	—			(1,086		)
Non-covered loans	—			(61,034		)	—		(61,034		)	—			(15,748		)	(15,748		)
Total charge-offs	(55		)	(61,034		)	—		(61,089		)	(1,086		)	(15,748		)	(16,834		)
Recoveries:
Covered loans	65			45			—		110			77			45			122
Non-covered loans	21			3,005			—		3,026			18			2,893			2,911
Total recoveries	86			3,050			—		3,136			95			2,938			3,033
Ending balance	$	14,220		$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

19

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The following table presents information about the balance of the ALLL and related loans at the dates indicated (in thousands):

	September 30, 2017								December 31, 2016
	Residential and Other Consumer		Commercial		Unallocated		Total		Residential and Other Consumer		Commercial		Total
Allowance for loan and lease losses:
Ending balance	$	14,220	$	139,353	$	5,000	$	158,573	$	11,503	$	141,450	$	152,953
Covered loans:
Ending balance	$	4,848	$	—	$	—	$	4,848	$	2,100	$	—	$	2,100
Ending balance: non-ACI loans individually evaluated for impairment	$	1,024	$	—	$	—	$	1,024	$	529	$	—	$	529
Ending balance: non-ACI loans collectively evaluated for impairment	$	2,012	$	—	$	—	$	2,012	$	1,571	$	—	$	1,571
Ending balance: ACI loans	$	1,812	$	—	$	—	$	1,812	$	—	$	—	$	—
Non-covered loans:
Ending balance	$	9,372	$	139,353	$	5,000	$	153,725	$	9,403	$	141,450	$	150,853
Ending balance: new loans individually evaluated for impairment	$	71	$	23,902	$	—	$	23,973	$	12	$	19,229	$	19,241
Ending balance: new loans collectively evaluated for impairment	$	9,301	$	115,451	$	5,000	$	129,752	$	9,391	$	122,221	$	131,612
Ending balance: ACI loans	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Loans:							0
Covered loans:
Ending balance	$	537,976	$	—	$	—	$	537,976	$	614,042	$	—	$	614,042
Ending balance: non-ACI loans individually evaluated for impairment	$	11,721	$	—	$	—	$	11,721	$	12,396	$	—	$	12,396
Ending balance: non-ACI loans collectively evaluated for impairment	$	50,315	$	—	$	—	$	50,315	$	65,404	$	—	$	65,404
Ending balance: ACI loans	$	475,940	$	—	$	—	$	475,940	$	536,242	$	—	$	536,242
Non-covered loans:
Ending balance	$	4,033,612	$	16,038,842	$	—	$	20,072,454	$	3,495,775	$	15,285,577	$	18,781,352
Ending balance: new loans individually evaluated for impairment	$	911	$	210,364	$	—	$	211,275	$	561	$	176,932	$	177,493
Ending balance: new loans collectively evaluated for impairment	$	4,032,701	$	15,790,546	$	—	$	19,823,247	$	3,495,207	$	15,061,707	$	18,556,914
Ending balance: ACI loans	$	—	$	37,932	$	—	$	37,932	$	7	$	46,938	$	46,945

The ALLL on residential and other consumer ACI loans at September 30, 2017 represents impairment of one pool of ACI home equity loans and lines of credit.

The ALLL at September 30, 2017 included $5.4 million related to the impact of Hurricanes Irma and Harvey, which made landfall during the three months ended September 30, 2017. The ALLL includes $0.4 million related to commercial loans that were downgraded during the three months ended September 30, 2017 as a result of the hurricanes and a $5.0 million unallocated qualitative allowance.

20

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Credit quality information

Loans other than ACI loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due, according to the contractual terms of the loan agreements. Commercial relationships on non-accrual status with committed balances greater than or equal to $1.0 million that have internal risk ratings of substandard or doubtful, as well as loans that have been modified in TDRs, are individually evaluated for impairment. Other commercial relationships on non-accrual status with committed balances under $1.0 million may also be evaluated individually for impairment, at management's discretion. The likelihood of loss related to loans assigned internal risk ratings of substandard or doubtful is considered elevated due to their identified credit weaknesses. Factors considered by management in evaluating impairment include payment status, financial condition of the borrower, collateral value, and other factors impacting the probability of collecting scheduled principal and interest payments when due.

ACI loans or pools are considered to be impaired when it is probable that the Company will be unable to collect all of the expected cash flows at acquisition (as adjusted for any additional cash flows expected to be collected arising from changes in estimates after acquisition), other than due to changes in interest rate indices and prepayment assumptions.

21

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The table below presents information about loans or ACI pools identified as impaired at the dates indicated (in thousands):

	September 30, 2017						December 31, 2016
	Recorded Investment		UPB		Related Specific Allowance		Recorded Investment		UPB		Related Specific Allowance
Non-covered loans:
With no specific allowance recorded:
1-4 single family residential	$	27	$	32	$	—	$	—	$	—	$	—
Non-owner occupied commercial real estate	9,041		9,224		—		510		512		—
Construction and land	1,238		1,238		—		1,238		1,238		—
Owner occupied commercial real estate	16,786		16,949		—		16,834		16,894		—
Commercial and industrial
Taxi medallion loans	20,320		20,321		—		18,107		18,107		—
Other commercial and industrial	1,081		1,095		—		6,172		6,172		—
Commercial lending subsidiaries	12,810		12,815		—		10,620		10,510		—
With a specific allowance recorded:
1-4 single family residential	884		863		71		561		546		12
Owner occupied commercial real estate	3,961		3,943		2,994		491		513		263
Commercial and industrial
Taxi medallion loans	100,252		100,255		13,117		73,131		73,147		5,948
Other commercial and industrial	41,297		41,292		7,313		29,452		29,463		9,168
Commercial lending subsidiaries	3,578		3,553		478		21,712		21,605		3,850
Total:
Residential and other consumer	$	911	$	895	$	71	$	561	$	546	$	12
Commercial	210,364		210,685		23,902		178,267		178,161		19,229
	$	211,275	$	211,580	$	23,973	$	178,828	$	178,707	$	19,241
Covered loans:
Non-ACI loans:
With no specific allowance recorded:
1-4 single family residential	$	102	$	118	$	—	$	1,169	$	1,391	$	—
Home equity loans and lines of credit	1,312		1,324		—		2,255		2,286		—
With a specific allowance recorded:
1-4 single family residential	2,221		2,579		208		1,272		1,514		181
Home equity loans and lines of credit	8,086		8,163		816		7,700		7,804		348
	$	11,721	$	12,184	$	1,024	$	12,396	$	12,995	$	529
ACI loans:
With a specific allowance recorded:
Home equity loans and lines of credit	$	5,640	$	27,731	$	1,812	$	—	$	—	$	—

Non-covered impaired loans include commercial real estate ACI loans modified in TDRs with a carrying value of $1.3 million as of December 31, 2016. Interest income recognized on impaired loans and pools for the three and nine months ended September 30, 2017 was approximately $2.9 million and $8.3 million, respectively. Interest income recognized on impaired loans for the three and nine months endedSeptember 30, 2016 was not material.

22

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The following tables present the average recorded investment in impaired loans or ACI pools for the periods indicated (in thousands): 

	Three Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	962	$	2,304	$	—	$	344	$	3,001	$	—
Home equity loans and lines of credit	—		9,533		5,166		—		9,551		—
	962		$	11,837	$	5,166	344		$	12,552	$	—
Commercial:
Multi-family	1,359						—
Non-owner occupied commercial real estate	8,216						506
Construction and land	2,797						1,285
Owner occupied commercial real estate	20,579						18,231
Commercial and industrial
Taxi medallion loans	123,867						56,125
Other commercial and industrial	42,479						48,143
Commercial lending subsidiaries	21,398						13,873
	220,695						138,163
	$	221,657					$	138,507

	Nine Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	800	$	2,369	$	—	$	251	$	3,186	$	—
Home equity loans and lines of credit	—		9,638		4,209		—		8,920		—
	800		$	12,007	$	4,209	251		$	12,106	$	—
Commercial:
Multi-family	1,816						—
Non-owner occupied commercial real estate	4,056						776
Construction and land	3,317						650
Owner occupied commercial real estate	18,872						13,711
Commercial and industrial
Taxi medallion loans	107,529						30,977
Other commercial and industrial	43,308						41,975
Commercial lending subsidiaries	27,202						11,293
	206,100						99,382
	$	206,900					$	99,633

23

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The following table presents the recorded investment in loans on non-accrual status as of the dates indicated (in thousands):

	September 30, 2017				December 31, 2016
	Non-Covered Loans		Covered Non-ACI Loans		Non-Covered Loans		Covered Non-ACI Loans
Residential and other consumer:
1-4 single family residential	$	1,890	$	934	$	566	$	918
Home equity loans and lines of credit	—		2,369		—		2,283
Other consumer loans	332		—		2		—
	2,222		$	3,303	568		$	3,201
Commercial:
Non-owner occupied commercial real estate	9,930				559
Construction and land	1,238				1,238
Owner occupied commercial real estate	21,455				19,439
Commercial and industrial
Taxi medallion loans	120,572				60,660
Other commercial and industrial	27,569				16,036
Commercial lending subsidiaries	16,625				32,645
	197,389				130,577
	$	199,611			$	131,145

Non-covered loans contractually delinquent by 90 days or more and still accruing totaled $0.8 million and $1.6 million at September 30, 2017 and December 31, 2016, respectively. The amount of additional interest income that would have been recognized on non-accrual loans had they performed in accordance with their contractual terms was approximately $1.4 million and $3.7 million for the three and nine months endedSeptember 30, 2017, respectively, and $1.1 million and $2.3 million for the three and nine months endedSeptember 30, 2016, respectively.

Management considers delinquency status to be the most meaningful indicator of the credit quality of 1-4 single family residential, home equity and consumer loans. Delinquency statistics are updated at least monthly. See "Aging of loans" below for more information on the delinquency status of loans. Original LTV and original FICO score are also important indicators of credit quality for the non-covered 1-4 single family residential portfolio. 

Internal risk ratings are considered the most meaningful indicator of credit quality for commercial loans. Internal risk ratings are a key factor in identifying loans that are individually evaluated for impairment and impact management’s estimates of loss factors used in determining the amount of the ALLL. Internal risk ratings are updated on a continuous basis. Generally, relationships with balances in excess of defined thresholds, ranging from $1 million to $3 million, are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. Loans exhibiting potential credit weaknesses that deserve management’s close attention and that if left uncorrected may result in deterioration of the repayment capacity of the borrower are categorized as special mention. Loans with well-defined credit weaknesses, including payment defaults, declining collateral values, frequent overdrafts, operating losses, increasing balance sheet leverage, inadequate cash flow, project cost overruns, unreasonable construction delays, past due real estate taxes or exhausted interest reserves, are assigned an internal risk rating of substandard. A loan with a weakness so severe that collection in full is highly questionable or improbable, but because of certain reasonably specific pending factors has not been charged off, will be assigned an internal risk rating of doubtful. 

24

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The following tables summarize key indicators of credit quality for the Company's loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands): 

1-4 Single Family Residential credit exposure for non-covered loans, based on original LTV and FICO score: 

	September 30, 2017
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	94,357	$	111,279	$	185,614	$	819,422	$	1,210,672
60% - 70%	93,963		102,461		140,350		586,158		922,932
70% - 80%	139,923		173,808		316,544		1,091,868		1,722,143
More than 80%	24,725		20,610		24,981		85,781		156,097
	$	352,968	$	408,158	$	667,489	$	2,583,229	$	4,011,844

	December 31, 2016
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	87,035	$	113,401	$	163,668	$	751,291	$	1,115,395
60% - 70%	80,694		94,592		124,180		523,970		823,436
70% - 80%	110,509		148,211		276,425		907,450		1,442,595
More than 80%	22,115		9,058		15,470		42,280		88,923
	$	300,353	$	365,262	$	579,743	$	2,224,991	$	3,470,349

25

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Commercial credit exposure, based on internal risk rating: 

	September 30, 2017
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,299,753	$	4,069,749	$	265,921	$	1,890,785	$	—	$	3,666,227	$	2,313,152	$	15,505,587
Special mention	32,255		12,824		—		31,495		—		38,389		35,936		150,899
Substandard	30,253		90,996		5,535		31,460		120,572		64,087		33,637		376,540
Doubtful	—		—		—		3,009		—		2,807		—		5,816
	$	3,362,261	$	4,173,569	$	271,456	$	1,956,749	$	120,572	$	3,771,510	$	2,382,725	$	16,038,842

	December 31, 2016
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,811,822	$	3,694,931	$	309,675	$	1,672,199	$	40,460	$	3,112,590	$	2,255,444	$	14,897,121
Special mention	12,000		7,942		—		33,274		—		19,009		—		72,225
Substandard	5,852		28,935		1,238		30,377		138,035		68,704		31,572		304,713
Doubtful	—		—		—		—		178		8,162		3,178		11,518
	$	3,829,674	$	3,731,808	$	310,913	$	1,735,850	$	178,673	$	3,208,465	$	2,290,194	$	15,285,577

26

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Aging of loans: 

The following table presents an aging of loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands):

	September 30, 2017										December 31, 2016
	Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total		Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total
Non-covered loans:
1-4 single family residential	$	3,994,758	$	13,964	$	444	$	2,678	$	4,011,844	$	3,457,606	$	10,355	$	325	$	2,063	$	3,470,349
Home equity loans and lines of credit	1,623		21		—		—		1,644		1,120		—		—		—		1,120
Other consumer loans	19,623		500		—		1		20,124		24,306		—		—		—		24,306
Multi-family	3,362,261		—		—		—		3,362,261		3,829,674		—		—		—		3,829,674
Non-owner occupied commercial real estate	4,171,880		—		—		1,689		4,173,569		3,730,470		754		—		584		3,731,808
Construction and land	270,218		—		—		1,238		271,456		309,675		—		—		1,238		310,913
Owner occupied commercial real estate	1,947,728		1,261		266		7,494		1,956,749		1,726,826		1,557		797		6,670		1,735,850
Commercial and industrial
Taxi medallion loans	107,325		—		2,803		10,444		120,572		137,856		7,037		4,563		29,217		178,673
Other commercial and industrial	3,769,065		1,629		58		758		3,771,510		3,198,008		2,515		954		6,988		3,208,465
Commercial lending subsidiaries	2,382,725		—		—		—		2,382,725		2,284,435		12		3,247		2,500		2,290,194
	$	20,027,206	$	17,375	$	3,571	$	24,302	$	20,072,454	$	18,699,976	$	22,230	$	9,886	$	49,260	$	18,781,352
Covered loans:
Non-ACI loans:
1-4 single family residential	$	23,002	$	691	$	—	$	934	$	24,627	$	29,406	$	481	$	—	$	918	$	30,805
Home equity loans and lines of credit	33,263		1,114		663		2,369		37,409		43,129		1,255		534		2,077		46,995
	$	56,265	$	1,805	$	663	$	3,303	$	62,036	$	72,535	$	1,736	$	534	$	2,995	$	77,800
ACI loans:
1-4 single family residential	$	436,051	$	14,126	$	2,549	$	17,574	$	470,300	$	500,272	$	13,524	$	2,990	$	15,562	$	532,348
Home equity loans and lines of credit	4,876		89		40		635		5,640		3,460		148		23		263		3,894
	$	440,927	$	14,215	$	2,589	$	18,209	$	475,940	$	503,732	$	13,672	$	3,013	$	15,825	$	536,242

1-4 single family residential and home equity ACI loans that are contractually delinquent by more than 90 days and accounted for in pools that are on accrual status because discount continues to be accreted totaled $18 million and $16 million at September 30, 2017 and December 31, 2016, respectively.

Foreclosure of residential real estate

The carrying amount of foreclosed residential real estate properties included in "Other assets" in the accompanying consolidated balance sheets, all of which were covered, totaled $4 million and $5 million at September 30, 2017 and December 31, 2016, respectively. The recorded investment in residential mortgage loans in the process of foreclosure totaled $13 million and $8 million at September 30, 2017 and December 31, 2016, respectively, substantially all of which were covered loans.

27

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Troubled debt restructurings

The following table summarizes loans that were modified in TDRs during the periods indicated, as well as loans modified during the twelve months preceding September 30, 2017 and 2016, that experienced payment defaults during the periods indicated (dollars in thousands):

	Three Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	—	$	—	2	$	269	—	$	—	—	$	—
Owner occupied commercial real estate	—	—		—	—		1	491		—	—
Commercial and industrial
Taxi medallion loans	15	5,439		6	2,105		18	29,854		8	4,104
Other commercial and industrial	1	978		—	—		2	1,646		—
Commercial lending subsidiaries	—	—		—	—		5	4,433		1	3,500
	16	$	6,417	8	$	2,374	26	$	36,424	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	—	$	—	1	$	70	10	$	1,671	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

	Nine Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	4	$	351	2	$	269	1	$	107	—	$	—
Non-owner occupied commercial real estate	1	5,389		—	—		—	—		—	—
Owner occupied commercial real estate	2	4,522		—	—		3	5,225		—	—
Commercial and industrial
Taxi medallion loans	97	48,692		8	3,509		58	57,341		8	4,104
Other commercial and industrial	14	20,860		—	—		7	21,422		1	3,500
Commercial lending subsidiaries	1	12,810		—	—		6	7,933		—	—
	119	$	92,624	10	$	3,778	75	$	92,028	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	5	$	939	1	$	70	16	$	2,293	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

Modifications during the three and nine months ended September 30, 2017 and 2016 included interest rate reductions, restructuring of the amount and timing of required periodic payments, extensions of maturity and covenant waivers. Included in TDRs are residential loans to borrowers who have not reaffirmed their debt discharged in Chapter 7 bankruptcy. The total amount of such loans is not material. Modified ACI loans accounted for in pools are not considered TDRs, are not separated from the pools and are not classified as impaired loans.

28

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Note 5    FDIC Indemnification Asset

When the Company recognizes gains or losses related to covered assets in its consolidated financial statements, changes in the estimated amount recoverable from the FDIC under the Loss Sharing Agreements with respect to those gains or losses are also reflected in the consolidated financial statements. Covered loans may be resolved through prepayment, short sale of the underlying collateral, foreclosure, sale of the loans or charge-off. For loans resolved through prepayment, short sale or foreclosure, the difference between consideration received in satisfaction of the loans and the carrying value of the loans is recognized in the consolidated statement of income line item “Income from resolution of covered assets, net.” Losses from the resolution of covered loans increase the amount recoverable from the FDIC under the Loss Sharing Agreements. Gains from the resolution of covered loans reduce the amount recoverable from the FDIC under the Loss Sharing Agreements. Similarly, differences in proceeds received on the sale of covered OREO and covered loans and their carrying amounts result in gains or losses and reduce or increase the amount recoverable from the FDIC under the Loss Sharing Agreements. Increases in valuation allowances or impairment charges related to covered assets also increase the amount estimated to be recoverable from the FDIC. These additions to or reductions in amounts recoverable from the FDIC related to transactions in the covered assets are recorded in the consolidated statement of income line item “Net gain (loss) on FDIC indemnification” and reflected as corresponding increases or decreases in the FDIC indemnification asset.

In addition, through June 30, 2017, recoveries of previously indemnified losses on assets that were formerly covered under the Commercial Shared-Loss Agreement resulted in reimbursements due to the FDIC. These transactions are included in the tables below. Amounts payable to the FDIC resulting from these transactions are recognized in other liabilities in the accompanying consolidated balance sheet at December 31, 2016.

The following tables summarize the components of the gains and losses associated with covered assets, along with the related additions to or reductions in the amounts recoverable from the FDIC under the Loss Sharing Agreements, as reflected in the consolidated statements of income for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Gain on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(261	)	$	215		$	(46	)	$	445		$	(368	)	$	77
Income from resolution of covered assets, net	6,400			(5,082		)	1,318			8,883			(7,106		)	1,777
Loss on sale of covered loans	—			—			—			(10,033		)	8,026			(2,007		)
Loss on covered OREO	(35		)	29			(6		)	(552		)	441			(111		)
	$	6,104		$	(4,838	)	$	1,266		$	(1,257	)	$	993		$	(264	)

	Nine Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(2,693	)	$	2,095		$	(598	)	$	1,119		$	(1,007	)	$	112
Income from resolution of covered assets, net	22,066			(17,591		)	4,475			26,426			(21,140		)	5,286
Loss on sale of covered loans	(1,582		)	1,266			(316		)	(14,895		)	11,958			(2,937		)
Loss on covered OREO	(65		)	56			(9		)	(957		)	779			(178		)
	$	17,726		$	(14,174	)	$	3,552		$	11,693		$	(9,410	)	$	2,283

29

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Changes in the FDIC indemnification asset and in the liability to the FDIC for recoveries related to assets previously covered under the Commercial Shared-Loss Agreement for the nine months ended September 30, 2017 and the year ended December 31, 2016, were as follows (in thousands): 

Balance at December 31, 2015	$	739,843
Amortization	(160,091		)
Reduction for claims filed	(46,083		)
Net loss on FDIC indemnification	(17,759		)
Balance at December 31, 2016	515,910
Amortization	(135,351		)
Reduction for claims filed	(16,768		)
Net loss on FDIC indemnification	(14,174		)
Balance at September 30, 2017	$	349,617

The balances at September 30, 2017 and December 31, 2016 are reflected in the consolidated balance sheets as follows (in thousands):

	September 30, 2017		December 31, 2016
FDIC indemnification asset	$	349,617	$	515,933
Other liabilities	—		(23		)
	$	349,617	$	515,910

Note 6Income Taxes

The Company’s effective income tax rate was 32.2% and 31.7% for the three months ended September 30, 2017 and 2016, respectively, and 31.2% and 33.2% for the nine months ended September 30, 2017 and 2016, respectively. The effective income tax rate differed from the statutory federal income tax rate of 35% in all periods due primarily to the effect of income not subject to tax, offset by state income taxes. In addition, the effective income tax rate for the three and nine months ended September 30, 2017 reflected the impact of $0.3 million and $3.2 million, respectively, in excess tax benefits resulting from activity related to vesting of share-based awards and exercise of stock options.

The Company has investments in affordable housing limited partnerships which generate federal Low Income Housing Tax Credits and other tax benefits. The balance of these investments, included in other assets in the accompanying consolidated balance sheet, was $66 million and $71 million at September 30, 2017 and December 31, 2016, respectively. Unfunded commitments for affordable housing investments, included in other liabilities in the accompanying consolidated balance sheet, were $29 million and $53 million at September 30, 2017 and December 31, 2016, respectively. The maximum exposure to loss as a result of the Company's involvement with these limited partnerships at September 30, 2017 was approximately $73 million. While the Company believes the likelihood of potential losses from these investments is remote, the maximum exposure was determined by assuming a scenario where the projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits. These investments did not have a material impact on income tax expense for the three and nine months ended September 30, 2017 and 2016.

Note 7    Derivatives and Hedging Activities

The Company uses interest rate swaps to manage interest rate risk related to liabilities that expose the Company to variability in cash flows due to changes in interest rates. The Company enters into LIBOR-based interest rate swaps that are designated as cash flow hedges with the objective of limiting the variability of interest payment cash flows resulting from changes in the benchmark interest rate LIBOR. Changes in the fair value of interest rate swaps designated as cash flow hedging instruments are reported in AOCI and subsequently reclassified into interest expense in the same period in which the related interest on the floating-rate debt obligations affects earnings.

30

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The Company also enters into interest rate derivative contracts with certain of its commercial borrowers to enable those borrowers to manage their exposure to interest rate fluctuations. To mitigate interest rate risk associated with these derivative contracts, the Company enters into offsetting derivative contract positions with primary dealers. These interest rate derivative contracts are not designated as hedging instruments; therefore, changes in the fair value of these derivatives are recognized immediately in earnings. The impact on earnings related to changes in fair value of these derivatives for the three and nine months ended September 30, 2017 and 2016 was not material.

The Company may be exposed to credit risk in the event of non-performance by the counterparties to its interest rate derivative agreements. The Company assesses the credit risk of its financial institution counterparties by monitoring publicly available credit rating and financial information. The Company manages dealer credit risk by entering into interest rate derivatives only with primary and highly rated counterparties, the use of ISDA master agreements, central clearing mechanisms and counterparty limits. The agreements contain bilateral collateral arrangements with the amount of collateral to be posted generally governed by the settlement value of outstanding swaps. The Company manages the risk of default by its borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The Company does not currently anticipate any losses from failure of interest rate derivative counterparties to honor their obligations.

The CME amended its rules effective January 2017 to legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposures rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. The Company's clearing agent for interest rate derivative contracts centrally cleared through the CME settles the variation margin daily with the CME; therefore, those interest rate derivative contracts the Company clears through the CME are reported at a fair value of approximately zero at September 30, 2017.

The following tables set forth certain information concerning the Company’s interest rate contract derivative financial instruments and related hedged items at the dates indicated (dollars in thousands):

	September 30, 2017
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.77%	3-Month Libor	4.6	$	2,046,000	Other assets / Other liabilities	$	1,066	$	(259	)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.86%	Indexed to 1-month Libor	6.4	1,000,763		Other assets / Other liabilities	7,605		(18,311		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.86%	6.4	1,000,763		Other assets / Other liabilities	19,648		(8,491		)
Interest rate caps purchased, indexed to 1-month Libor			2.80%	1.6	145,957		Other assets	15		—
Interest rate caps sold, indexed to 1-month Libor		2.80%		1.6	145,957		Other liabilities	—		(15		)
					$	4,339,440		$	28,334	$	(27,076	)

31

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

	December 31, 2016
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.58%	3-Month Libor	3.3	$	1,715,000	Other assets / Other liabilities	$	19,648	$	(3,112	)
Pay-fixed forward-starting interest rate swaps	Variability of interest cash flows on variable rate borrowings	3.43%	3-Month Libor	10.5	300,000		Other liabilities	—		(27,866		)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.77%	Indexed to 1-month Libor	6.8	912,000		Other assets / Other liabilities	9,949		(20,383		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.77%	6.8	912,000		Other assets / Other liabilities	20,383		(9,949		)
Interest rate caps purchased, indexed to 1-month Libor			2.96%	2.3	189,057		Other assets	252		—
Interest rate caps sold, indexed to 1-month Libor		2.96%		2.3	189,057		Other liabilities	—		(252		)
					$	4,217,114		$	50,232	$	(61,562	)

The following table provides information about the amount of loss reclassified from AOCI into interest expense for the periods indicated (dollars in thousands):

	Amount of Loss Reclassified from AOCI on Derivatives
	Three Months Ended September 30,						Nine Months Ended September 30,
Derivatives in Cash Flow Hedging Relationships	2017			2016			2017			2016			Location of Loss Reclassified from AOCI into Income
Interest rate contracts	$	(2,001	)	$	(3,741	)	$	(7,463	)	$	(13,050	)	Interest expense on borrowings

During the nine months ended September 30, 2017 and 2016, no derivative positions designated as cash flow hedges were discontinued and none of the gains and losses reported in AOCI were reclassified into earnings as a result of the discontinuance of cash flow hedges or because of the early extinguishment of debt. As of September 30, 2017, the amount of loss expected to be reclassified from AOCI into earnings during the next twelve months was $6.2 million. 

Some of the Company’s ISDA master agreements with financial institution counterparties contain provisions that permit either counterparty to terminate the agreements and require settlement in the event that regulatory capital ratios fall below certain designated thresholds, upon the initiation of other defined regulatory actions or upon suspension or withdrawal of the Bank’s credit rating. Currently, there are no circumstances that would trigger these provisions of the agreements.

32

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The Company does not offset assets and liabilities under master netting agreements for financial reporting purposes. Information on interest rate swaps subject to these agreements is as follows at the dates indicated (in thousands):

	September 30, 2017
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged			Net Amount
Derivative assets	$	8,686		$	—	$	8,686		$	(6,814	)	$	(1,539	)	$	333
Derivative liabilities	(18,570		)	—		(18,570		)	6,814			11,756			—
	$	(9,884	)	$	—	$	(9,884	)	$	—		$	10,217		$	333

	December 31, 2016
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged		Net Amount
Derivative assets	$	29,849		$	—	$	29,849		$	(27,485	)	$	—	$	2,364
Derivative liabilities	(51,362		)	—		(51,362		)	27,485			23,796		(81		)
	$	(21,513	)	$	—	$	(21,513	)	$	—		$	23,796	$	2,283

The difference between the amounts reported for interest rate swaps subject to master netting agreements and the total fair value of interest rate contract derivative financial instruments reported in the consolidated balance sheets is related to interest rate contracts entered into with borrowers not subject to master netting agreements.

At September 30, 2017, the Company had pledged investment securities available for sale with a carrying amount of $40 million and cash on deposit of $2 million as collateral for interest rate swaps in a liability position. $2 million of financial collateral was pledged by counterparties to the Company for interest rate swaps in an asset position. The amount of collateral required to be posted varies based on the settlement value of outstanding swaps and in some cases may include initial margin requirements. 

33

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

Note 8    Stockholders’ Equity

Accumulated Other Comprehensive Income

Changes in AOCI are summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	14,144		$	(5,587	)	$	8,557		$	5,316		$	(2,100	)	$	3,216
Amounts reclassified to gain on investment securities available for sale, net	(26,931		)	10,638			(16,293		)	(3,008		)	1,188			(1,820		)
Net change in unrealized gains on investment securities available for sale	(12,787		)	5,051			(7,736		)	2,308			(912		)	1,396
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period	(281		)	111			(170		)	8,356			(3,301		)	5,055
Amounts reclassified to interest expense on borrowings	2,001			(791		)	1,210			3,741			(1,477		)	2,264
Net change in unrealized losses on derivative instruments	1,720			(680		)	1,040			12,097			(4,778		)	7,319
Other comprehensive income (loss)	$	(11,067	)	$	4,371		$	(6,696	)	$	14,405		$	(5,690	)	$	8,715

	Nine Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	54,258		$	(21,432	)	$	32,826		$	88,413		$	(34,923	)	$	53,490
Amounts reclassified to gain on investment securities available for sale, net	(29,194		)	11,532			(17,662		)	(10,065		)	3,975			(6,090		)
Net change in unrealized gains on investment securities available for sale	25,064			(9,900		)	15,164			78,348			(30,948		)	47,400
Unrealized losses on derivative instruments:
Net unrealized holding loss arising during the period	(13,780		)	5,443			(8,337		)	(57,765		)	22,817			(34,948		)
Amounts reclassified to interest expense on borrowings	7,463			(2,948		)	4,515			13,050			(5,154		)	7,896
Net change in unrealized losses on derivative instruments	(6,317		)	2,495			(3,822		)	(44,715		)	17,663			(27,052		)
Other comprehensive income	$	18,747		$	(7,405	)	$	11,342		$	33,633		$	(13,285	)	$	20,348

34

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The categories of AOCI and changes therein are presented below for the periods indicated (in thousands):

	Unrealized Gains on Investment Securities Available for Sale		Unrealized Losses on Derivative Instruments			Total
Balance at December 31, 2016	$	47,057	$	(5,810	)	$	41,247
Other comprehensive income	15,164		(3,822		)	11,342
Balance at September 30, 2017	$	62,221	$	(9,632	)	$	52,589
Balance at December 31, 2015	$	41,535	$	(19,353	)	$	22,182
Other comprehensive income	47,400		(27,052		)	20,348
Balance at September 30, 2016	$	88,935	$	(46,405	)	$	42,530

Note 9    Equity Based and Other Compensation Plans

Share Awards

Unvested share awards

During the nine months ended September 30, 2017, the Company granted 618,306 unvested share awards under the 2014 Plan. All of the shares vest in equal annual installments over a period of three years from the date of grant. The shares granted were valued at the closing price of the Company’s common stock on the date of grant, ranging from $33.21 to $40.84, and had an aggregate fair value of $24.9 million. The total unrecognized compensation cost of $26.7 million for all unvested share awards outstanding at September 30, 2017 will be recognized over a weighted average remaining period of 1.98 years.

During the nine months ended September 30, 2016, the Company granted 644,888 unvested share awards under the 2014 Plan. All of the shares vest in equal annual installments over a period of three years from the date of grant. The shares granted were valued at the closing price of the Company’s common stock on the date of grant, ranging from $29.78 to $33.76, and had an aggregate fair value of $20.0 million.

Executive share-based awards

Certain of the Company's executives are eligible to receive annual awards of RSUs and PSUs (collectively, the "share units"). Annual awards of RSUs represent a fixed number of shares and vest in equal tranches overthree years. PSUs are initially granted based on a target value. The number of PSUs that ultimately vest at the end of a three-year performance measurement period will be based on the achievement of performance criteria pre-established by the Compensation Committee of the Board of Directors. The performance criteria established for the PSUs granted in 2017 and 2016 include both performance and market conditions. Upon vesting, the share units will be converted to common stock on a one-for-one basis, or may be settled in cash at the Company's option. The share units will accumulate dividends declared on the Company's common stock from the date of grant to be paid subsequent to vesting.

The first tranche of RSUs granted vested on December 31, 2016. The Company cash settled these share units in the amount of $0.8 million during the first quarter of 2017. As a result of this cash settlement, all RSUs and PSUs have been determined to be liability instruments and will be remeasured at fair value each reporting period until the awards are settled. The RSUs are valued based on the closing price of the Company's common stock at the reporting date. The PSUs are valued based on the closing price of the Company's common stock at the reporting date net of a discount related to any applicable market conditions, considering the probability of meeting the defined performance conditions. Compensation cost related to PSUs is recognized during the performance period based on the probable outcome of the respective performance conditions.

During the nine months ended September 30, 2017, 47,848 RSUs and 47,848 PSUs were granted. During the nine months ended September 30, 2016, 57,873 RSUs and 57,873 PSUs were granted. The total liability for the share units was $2.6 million at September 30, 2017. The total unrecognized compensation cost of $5.3 million for these share units at September 30, 2017 will be recognized over a weighted average remaining period of 2.18 years.

35

BANKUNITED, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

September 30, 2017

The 618,306 unvested share awards granted during the nine months ended September 30, 2017, as discussed above, included 25,321 unvested share awards granted to certain of the Company's executives based on the achievement of performance criteria pre-established by the Compensation Committee for the year ended December 31, 2016.

Incentiveawards

Beginning in 2017, the Company's annual incentive compensation arrangements provide for settlement through a combination of cash payments and unvested share awards following the end of the annual performance period. The dollar value of share awards to be granted is based on the achievement of performance criteria established in the incentive arrangements. The number of shares of common stock to be awarded is variable based on the closing price of the Company's stock on the date of grant; therefore, these awards are initially classified as liability instruments, with compensation cost recognized from the beginning of the performance period. The awards vest in equal installments over a period ofthree yearsfrom the date of grant.The total liability for the incentive share awards was $1.2 million at September 30, 2017. The total unrecognized compensation cost of $5.3 million for these share awards at September 30, 2017 will be recognized over a weighted average remaining period of 3.25 years. The accrued liability and unrecognized compensation cost are based on management's current estimate of the likely outcome of the performance criteria established in the incentive arrangements and may differ from actual results.

Option Awards

A summary of activity related to stock option awards for the nine months ended September 30, 2017 follows:

	Number of Option Awards		Weighted Average Exercise Price
Option awards outstanding, December 31, 2016	3,602,076		$	26.74
Exercised	(2,304,108	)	26.70
Option awards outstanding and exercisable, September 30, 2017	1,297,968		$	26.81

Activity related to stock option awards for the nine months ended September 30, 2016 was not significant. The intrinsic value of options exercised and the related tax benefit was $25.3 million and $3.8 million, respectively, during the nine months ended September 30, 2017.

Note 10    Fair Value Measurements

Assets and liabilities measured at fair value on a recurring basis 

Following is a description of the methodologies used to estimate the fair values of assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy in which those measurements are typically classified.

Investment securities available for sale—Fair value measurements are based on quoted prices in active markets when available; these measurements are classified within level 1 of the fair value hierarchy. These securities typically include U.S. Treasury securities and certain preferred stocks. If quoted prices in active markets are not available, fair values are estimated using quoted prices of securities with similar characteristics, quoted prices of identical securities in less active markets, discounted cash flow techniques, or matrix pricing models. These securities are generally classified within level 2 of the fair value hierarchy and include U.S. Government agency securities, U.S. Government agency and sponsored enterprise MBS, preferred stock investments for which level 1 valuations are not available, corporate debt securities, non-mortgage asset-backed securities, single family rental real estate-backed securities, certain private label residential MBS and CMOs, private label commercial MBS, collateralized loan obligations and state and municipal obligations. Pricing of these securities is generally primarily spread driven. Observable inputs that may impact the valuation of these securities include benchmark yield curves, credit spreads, reported trades, dealer quotes, bids, issuer spreads, current rating, historical constant prepayment rates, historical voluntary prepayment rates, structural and waterfall features of individual securities, published collateral data, and for certain securities, historical constant default rates and default severities. Investment securities available for sale generally classified within level 3 of the fair value hierarchy include certain private label MBS and trust preferred securities. The Company typically values these securities using third-party proprietary pricing models, primarily discounted cash flow valuation techniques, which incorporate both observable and unobservable inputs. Unobservable inputs that may impact the valuation of

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September 30, 2017

these securities include risk adjusted discount rates, projected prepayment rates, projected default rates and projected loss severity.

The Company uses third-party pricing services in determining fair value measurements for investment securities. To obtain an understanding of the methodologies and assumptions used, management reviews written documentation provided by the pricing services, conducts interviews with valuation desk personnel and reviews model results and detailed assumptions used to value selected securities as considered necessary. Management has established a robust price challenge process that includes a review by the treasury front office of all prices provided on a monthly basis. Any price evidencing unexpected month over month fluctuations or deviations from expectations is challenged. If considered necessary to resolve any discrepancies, a price will be obtained from an additional independent valuation source. The Company does not typically adjust the prices provided, other than through this established challenge process. The results of price challenges are subject to review by executive management. The Company has also established a quarterly process whereby prices provided by its primary pricing service for a sample of securities are validated. Any price discrepancies are resolved based on careful consideration of the assumptions and inputs employed by each of the pricing sources.

Servicing rights—Commercial servicing rights are valued using a discounted cash flow methodology incorporating contractually specified servicing fees and market based assumptions about prepayments, discount rates, default rates and costs of servicing. Prepayment and default assumptions are based on historical industry data for loans with similar characteristics. Assumptions about costs of servicing are based on market convention. Discount rates are based on rates of return implied by observed trades of underlying loans in the secondary market. Fair value of residential MSRs is estimated using a discounted cash flow technique that incorporates market‑based assumptions including estimated prepayment speeds, contractual servicing fees, cost to service, discount rates, escrow account earnings, ancillary income, and estimated defaults. Due to the nature of the valuation inputs and the limited availability of market pricing, servicing rights are classified as level 3.

Derivative financial instruments—Fair values of interest rate swaps are determined using widely accepted discounted cash flow modeling techniques. These discounted cash flow models use projections of future cash payments and receipts that are discounted at mid-market rates. Observable inputs that may impact the valuation of these instruments include LIBOR swap rates and LIBOR forward yield curves. These fair value measurements are generally classified within level 2 of the fair value hierarchy.

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September 30, 2017

The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands):

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	24,957	$	—	$	—	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	—		2,348,687		—		2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	—		139,220		—		139,220
Private label residential MBS and CMOs	—		467,061		60,797		527,858
Private label commercial MBS	—		1,153,601		—		1,153,601
Single family rental real estate-backed securities	—		572,948		—		572,948
Collateralized loan obligations	—		700,319		—		700,319
Non-mortgage asset-backed securities	—		82,637		—		82,637
Preferred stocks	70,038		678		—		70,716
State and municipal obligations	—		677,015		—		677,015
SBA securities	—		586,675		—		586,675
Other debt securities	—		3,815		5,024		8,839
Servicing rights	—		—		30,136		30,136
Derivative assets	—		28,334		—		28,334
Total assets at fair value	$	94,995	$	6,760,990	$	95,957	$	6,951,942
Derivative liabilities	$	—	$	27,076	$	—	$	27,076
Total liabilities at fair value	$	—	$	27,076	$	—	$	27,076

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September 30, 2017

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	5,005	$	—	$	—	$	5,005
U.S. Government agency and sponsored enterprise residential MBS	—		1,527,242		—		1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	—		124,586		—		124,586
Private label residential MBS and CMOs	—		254,488		120,610		375,098
Private label commercial MBS	—		1,187,624		—		1,187,624
Single family rental real estate-backed securities	—		861,251		—		861,251
Collateralized loan obligations	—		487,296		—		487,296
Non-mortgage asset-backed securities	—		186,736		—		186,736
Preferred stocks	86,890		1,313		—		88,203
State and municipal obligations	—		698,546		—		698,546
SBA securities	—		523,906		—		523,906
Other debt securities	—		3,519		4,572		8,091
Servicing rights	—		—		27,159		27,159
Derivative assets	—		50,232		—		50,232
Total assets at fair value	$	91,895	$	5,906,739	$	152,341	$	6,150,975
Derivative liabilities	$	—	$	61,562	$	—	$	61,562
Total liabilities at fair value	$	—	$	61,562	$	—	$	61,562

There were no transfers of financial assets between levels of the fair value hierarchy during the nine months ended September 30, 2017.

The following table reconciles changes in the fair value of assets and liabilities measured at fair value on a recurring basis and classified in level 3 of the fair value hierarchy during the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	108,790		$	4,923		$	29,128		$	131,156		$	4,292		$	24,891
Gains (losses) for the period included in:
Net income	24,146			—			(1,330		)	—			—			(2,369		)
Other comprehensive income	(24,668		)	101			—			337			22			—
Discount accretion	2,332			59			—			1,404			36			—
Purchases or additions	—			—			2,338			—			—			2,194
Sales	(40,732		)	—			—			—			—			—
Settlements	(9,071		)	(59		)	—			(5,594		)	(26		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

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September 30, 2017

	Nine Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	120,610		$	4,572		$	27,159		$	140,883		$	4,532		$	20,017
Gains (losses) for the period included in:
Net income	24,146			—			(4,273		)	—			—			(5,983		)
Other comprehensive income	(25,651		)	469			—			(190		)	(245		)	—
Discount accretion	5,208			248			—			4,485			88			—
Purchases or additions	—			—			7,250			—			—			10,682
Sales	(40,732		)	—			—			—			—			—
Settlements	(22,784		)	(265		)	—			(17,875		)	(51		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

Gains on private label residential MBS recognized in net income during the three and nine months ended September 30, 2017 are included in the consolidated statement of income line item "Gain on investment securities available for sale, net." Changes in the fair value of servicing rights are included in the consolidated statement of income line item “Other non-interest income.” Changes in fair value include changes due to valuation assumptions, primarily discount rates and prepayment speeds, as well as other changes such as runoff and the passage of time. The amount of net unrealized losses included in earnings for the nine months ended September 30, 2017 and 2016 that were related to servicing rights held at September 30, 2017 and 2016 totaled approximately $0.8 million and $1.7 million, respectively, and were primarily due to changes in discount rates and prepayment speeds.

Securities for which fair value measurements are categorized in level 3 of the fair value hierarchy at September 30, 2017 consisted of pooled trust preferred securities with a fair value of $5 million and private label residential MBS and CMOs with a fair value of $61 million. The trust preferred securities are not material to the Company’s financial statements. Private label residential MBS consisted of senior and mezzanine tranches collateralized by prime fixed rate and hybrid 1-4 single family residential mortgages originated before 2005, some of which contain option-arm features. Substantially all of these securities have variable rate coupons. Weighted average subordination levels at September 30, 2017 were 16.4% and 10.4% for investment grade and non-investment grade securities, respectively.

The following table provides information about the valuation techniques and unobservable inputs used in the valuation of private label residential MBS and CMOs falling within level 3 of the fair value hierarchy as of September 30, 2017 (dollars in thousands): 

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Investment grade	$	34,245	Discounted cash flow	Voluntary prepayment rate	6.60% - 25.60% (15.92%)
				Probability of default	0.13% - 4.04% (1.36%)
				Loss severity	15.00% - 75.00% (33.10%)
				Discount rate	1.88% - 7.43% (3.48%)
Non-investment grade	$	26,552	Discounted cash flow	Voluntary prepayment rate	1.10% - 29.30% (15.35%)
				Probability of default	0.13% - 4.15% (1.51%)
				Loss severity	15.00% - 95.00% (32.96%)
				Discount rate	1.35% - 9.43% (5.89%)

The significant unobservable inputs impacting the fair value measurement of private label residential MBS and CMOs include voluntary prepayment rates, probability of default, loss severity given default and discount rates. Generally, increases in

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September 30, 2017

probability of default, loss severity or discount rates would result in a lower fair value measurement. Alternatively, decreases in probability of default, loss severity or discount rates would result in a higher fair value measurement. For securities with less favorable credit characteristics, decreases in voluntary prepayment speeds may be interpreted as a deterioration in the overall credit quality of the underlying collateral and as such, lead to lower fair value measurements. The fair value measurements of those securities with higher levels of subordination will be less sensitive to changes in these unobservable inputs other than discount rates, while securities with lower levels of subordination will show a higher degree of sensitivity to changes in these unobservable inputs other than discount rates. Generally, a change in the assumption used for probability of default is accompanied by a directionally similar change in the assumption used for loss severity given default and a directionally opposite change in the assumption used for voluntary prepayment rate. 

The following table provides information about the valuation techniques and significant unobservable inputs used in the valuation of servicing rights as of September 30, 2017 (dollars in thousands):

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Residential MSRs	$	18,006	Discounted cash flow	Prepayment rate	2.76% - 29.96% (12.88%)
				Discount rate	9.50% - 9.58% (9.51%)
Commercial servicing rights	$	12,130	Discounted cash flow	Prepayment rate	0.09% - 9.99% (7.81%)
				Discount rate	8.12% - 14.57% (12.48%)

Increases in prepayment rates or discount rates would result in lower fair value measurements and decreases in prepayment rates or discount rates would result in higher fair value measurements. Although the prepayment rate and the discount rate are not directly interrelated, they generally move in opposite directions.

Assets and liabilities measured at fair value on a non-recurring basis

Following is a description of the methodologies used to estimate the fair values of assets and liabilities that may be measured at fair value on a non-recurring basis, and the level within the fair value hierarchy in which those measurements are typically classified. 

Impaired loans, OREOand other repossessed assets—The carrying amount of collateral dependent impaired loans is typically based on the fair value of the underlying collateral, which may be real estate, taxi medallions, or other business assets, less estimated costs to sell. The carrying value of OREO is initially measured based on the fair value of the real estate acquired in foreclosure and subsequently adjusted to the lower of cost or estimated fair value, less estimated cost to sell. Fair values of real estate collateral and OREO are typically based on third-party real estate appraisals which utilize market and income approaches to valuation incorporating both observable and unobservable inputs. When current appraisals are not available, the Company may use brokers’ price opinions, home price indices or other available information about changes in real estate market conditions to adjust the latest appraised value available. These adjustments to appraised values may be subjective and involve significant management judgment. The fair value of repossessed assets, other than taxi medallions, or collateral consisting of other business assets may be based on third-party appraisals or internal analyses that use market approaches to valuation incorporating primarily unobservable inputs.

The fair value of New York City taxi medallions is based primarily on an internal analysis that utilizes an income approach to valuation. This analysis utilizes data obtained from the NYTLC about the fleet in general and in some cases, our portfolio specifically, and management's assumptions, based on external data when available, about revenues, costs and expenses, to estimate the value that can reasonably be supported by the cash flow generating capacity of a medallion. We further discount the results of this analysis in recognition of estimated selling costs and declining trends in medallion values. We also consider prices of recent medallion transfers as published by the NYTLC; however, the market for taxi medallions is illiquid and information about the circumstances underlying observed transfers is unavailable, therefore, information about recent transfers is not considered sufficient to establish a reliable estimate of value. The Company's medallion valuations fall within the range of published transfer prices over the last six months. Taxi medallions in municipalities other than New York City are generally valued based on published information about recent transfer prices; the valuation of these assets did not have a material impact on the Company's consolidated financial statements for any period presented as the taxi medallion portfolio is heavily concentrated in New York City.

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September 30, 2017

Fair value measurements related to collateral dependent impaired loans, OREO and other repossessed assets are classified within level 3 of the fair value hierarchy.

The following tables present the carrying value of assets for which non-recurring changes in fair value have been recorded for the periods indicated (in thousands): 

	September 30, 2017								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2017			Nine Months Ended   September 30, 2017
OREO and repossessed assets	$	—	$	—	$	5,520	$	5,520	$	(515	)	$	(1,534	)
Impaired loans	$	—	$	—	$	107,173	$	107,173	$	(35,106	)	$	(58,073	)

	September 30, 2016								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2016			Nine Months Ended   September 30, 2016
OREO and repossessed assets	$	—	$	—	$	7,923	$	7,923	$	(372	)	$	740
Impaired loans	$	—	$	—	$	59,678	$	59,678	$	(10,623	)	$	(18,873	)

Included in the tables above are impaired taxi medallion loans with carrying values of $90.1 million and $39.6 million at September 30, 2017 and September 30, 2016, respectively, the majority of which were in New York City. Losses of $54.3 million and $10.2 million were recognized on impaired taxi medallion loans during the nine months ended September 30, 2017 and 2016, respectively.

Decreases in the value of medallions are largely driven by decreases in revenues generated from the medallions. Inputs that had the most significant impact on the valuation of New York City taxi medallions at September 30, 2017 are presented below:

	Average Amount
Average fare per trip	$16.12
Number of trips per shift	15.4
Days worked per month	25.6

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September 30, 2017

The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands):

		September 30, 2017				December 31, 2016
	Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Cash and cash equivalents	1	$	292,601	$	292,601	$	448,313	$	448,313
Investment securities available for sale	1/2/3	6,893,472		6,893,472		6,073,584		6,073,584
Investment securities held to maturity	3	10,000		10,000		10,000		10,000
Non-marketable equity securities	2	270,239		270,239		284,272		284,272
Loans held for sale	2	31,507		35,113		41,198		45,833
Loans:
Covered	3	533,128		997,376		611,942		1,200,291
Non-covered	3	19,918,729		19,906,579		18,630,499		18,713,495
FDIC Indemnification asset	3	349,617		168,415		515,933		256,691
Derivative assets	2	28,334		28,334		50,232		50,232
Liabilities:
Demand, savings and money market deposits	2	$	14,889,543	$	14,889,543	$	13,735,248	$	13,735,248
Time deposits	2	6,333,701		6,335,324		5,755,642		5,759,787
FHLB advances	2	4,871,000		4,876,017		5,239,348		5,244,188
Notes and other borrowings	2	402,828		427,748		402,809		403,733
Derivative liabilities	2	27,076		27,076		61,562		61,562

The following methods and assumptions were used to estimate the fair value of each class of financial instruments, other than those described above:

Cash and cash equivalents

The carrying value of cash and cash equivalents approximates fair value due to their short-term nature and generally negligible credit risk.

Investment securities held to maturity

Investment securities held to maturity includes one bond issued by the State of Israel, with fair value obtained from a third party pricing service.

Non-marketable equity securities

Non-marketable equity securities include FHLB and FRB stock. There is no market for these securities, which can be liquidated only by redemption by the issuer. These securities are valued at par, which has historically represented the redemption price and is therefore considered to approximate fair value.

Loans held for sale

The fair value of the portion of small business loans guaranteed by U.S. Government agencies being held for sale is estimated using pricing on recent sales of similar loans by the Company in active markets.

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Covered loans

Fair values are estimated based on a discounted cash flow analysis. Estimates of future cash flows incorporate various factors that may include the type of loan and related collateral, estimated collateral values, estimated voluntary prepayment rates, estimated default probability and loss severity given default, whether the interest rate is fixed or variable, term of loan and whether or not the loan is amortizing. The fair values of loans accounted for in pools are estimated on a pool basis. Discount rates for residential loans are based on observable fixed income market data for products with similar credit characteristics.

Non-covered loans

Fair values of residential loans are estimated using a discounted cash flow analysis with discount rates based on yields at which similar loans are trading in the secondary market, which reflect assumptions about credit risk. Fair values of commercial and consumer loans are estimated using a discounted cash flow analysis with discount rates based on interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. The ALLL related to commercial and consumer loans is considered a reasonable estimate of the required adjustment to fair value to reflect the impact of credit risk. This estimate may not represent an exit value as defined in ASC 820.

FDIC indemnification asset

The fair value of the FDIC indemnification asset has been estimated using a discounted cash flow technique incorporating assumptions about the timing and amount of future projected cash payments from the FDIC related to the resolution of covered assets. The factors that impact estimates of future cash flows are similar to those impacting estimated cash flows from covered loans. The discount rate is determined by adjusting the risk free rate to incorporate uncertainty in the estimate of the timing and amount of future cash flows and illiquidity.

Deposits

The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date. The fair value of time deposits is estimated using a discounted cash flow technique based on rates currently offered for deposits of similar remaining maturities.

FHLB advances

Fair value is estimated by discounting contractual future cash flows using the current rate at which borrowings with similar terms and remaining maturities could be obtained by the Company.

Senior notes

Fair value is estimated based on quoted prices of identical securities in less active markets.

Note 11     Commitments and Contingencies

The Company issues off-balance sheet financial instruments to meet the financing needs of its customers. These financial instruments include commitments to fund loans, unfunded commitments under existing lines of credit, and commercial and standby letters of credit. These commitments expose the Company to varying degrees of credit and market risk which are essentially the same as those involved in extending loans to customers, and are subject to the same credit policies used in underwriting loans. Collateral may be obtained based on the Company’s credit evaluation of the counterparty. The Company’s maximum exposure to credit loss is represented by the contractual amount of these commitments. Unfunded commitments under lines of credit include $10.0 million available under non-cancellable commitments in effect at the date of the FSB Acquisition, which are covered under the Single Family Shared-Loss Agreement if prescribed conditions are met.

Commitments to fund loans

These are agreements to lend funds to customers as long as there is no violation of any condition established in the contract. Commitments to fund loans generally have fixed expiration dates or other termination clauses and may require payment of a fee. Many of these commitments are expected to expire without being funded and, therefore, the total commitment amounts do not necessarily represent future liquidity requirements. 

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BANKUNITED, INC. AND SUBSIDIARIES

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September 30, 2017

Unfunded commitments under lines of credit

Unfunded commitments under lines of credit include commercial, commercial real estate, home equity and consumer lines of credit to existing customers. Some of these commitments may mature without being fully funded. 

Commercial and standby letters of credit

Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These letters of credit are primarily issued to support trade transactions or guarantee arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. 

Total lending related commitments outstanding at September 30, 2017 were as follows (in thousands): 

Commitments to fund loans	$	417,943
Commitments to purchase loans	287,302
Unfunded commitments under lines of credit	2,361,922
Commercial and standby letters of credit	83,141
	$	3,150,308

Legal Proceedings

The Company is involved as plaintiff or defendant in various legal actions arising in the normal course of business. In the opinion of management, based upon advice of legal counsel, the likelihood is remote that the impact of these proceedings, either individually or in the aggregate, would be material to the Company’s consolidated financial position, results of operations or cash flows.

45

Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations 

The following discussion and analysis is intended to focus on significant changes in the financial condition and results of operations of the Company during the three and nine months ended September 30, 2017 and should be read in conjunction with the consolidated financial statements and notes hereto included in this Quarterly Report on Form 10-Q and BKU's 2016 Annual Report on Form 10-K for the year ended December 31, 2016 (the "2016 Annual Report on Form 10-K”).

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that reflect the Company’s current views with respect to, among other things, future events and financial performance. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates” and similar expressions identify forward-looking statements. These forward-looking statements are based on the historical performance of the Company or on the Company’s current plans, estimates and expectations. The inclusion of this forward-looking information should not be regarded as a representation by the Company that the future plans, estimates or expectations so contemplated will be achieved. Such forward-looking statements are subject to various risks and uncertainties and assumptions relating to the Company’s operations, financial results, financial condition, business prospects, growth strategy and liquidity. If one or more of these or other risks or uncertainties materialize, or if the Company’s underlying assumptions prove to be incorrect, the Company’s actual results may vary materially from those indicated in these statements. A number of important factors could cause actual results to differ materially from those indicated by the forward-looking statements, including, but not limited to, the risk factors described in Part II, Item 1A of this Quarterly Report on Form 10- Q and in Part I, Item 1A of the 2016 Annual Report on Form 10-K. The Company does not undertake any obligation to publicly update or review any forward looking statement, whether as a result of new information, future developments or otherwise.

Overview

Quarterly Highlights

In evaluating our financial performance, we consider the level of and trends in net interest income, the net interest margin, levels and composition of non-interest income and non-interest expense, performance ratios such as the return on average equity and return on average assets and asset quality ratios, particularly for the non-covered portfolio, including the ratio of non-performing loans to total loans, non-performing assets to total assets, and portfolio delinquency and charge-off trends. We consider growth in earning assets and deposits, trends in funding mix and cost of funds. We analyze these ratios and trends against our own historical performance, our budgeted performance and the financial condition and performance of comparable financial institutions.

Quarterly highlights include:

• Net income for the quarter ended September 30, 2017 was $67.8 million, or $0.62 per diluted share, compared to $50.8 million, or $0.47 per diluted share, for the quarter ended September 30, 2016. For the nine months ended September 30, 2017, net income was $196.5 million, or $1.79 per diluted share, compared to $162.4 million, or $1.50 per diluted share, for the nine months ended September 30, 2016. Earnings for the nine months ended September 30, 2017 generated an annualized return on average stockholders' equity of 10.21% and an annualized return on average assets of 0.92%.

• Net interest income increased by $19.5 million to $241.3 million for the quarter ended September 30, 2017 from $221.7 million for the quarter ended September 30, 2016. Interest income increased by $39.5 million, driven by increases in the average balances of loans and investment securities outstanding and an increase in the yield on interest earning assets. Interest expense increased by $19.9 million, driven by increases in average interest bearing liabilities and the cost of those liabilities. For the nine months ended September 30, 2017, net interest income increased by $68.6 million to $711.4 million from $642.9 million for the nine months ended September 30, 2016.

• The net interest margin, calculated on a tax-equivalent basis, decreased to 3.62% for the quarter ended September 30, 2017 from 3.69% for the quarter ended September 30, 2016 and 3.76% for the immediately preceding quarter ended June 30, 2017. Significant factors contributing to the decline in the net interest margin included the continued run-off of high-yielding covered loans and an increase in the cost of interest bearing liabilities. The net interest margin, calculated on a tax-equivalent basis, was 3.69% for the nine months ended September 30, 2017 compared to 3.75% for the nine months ended September 30, 2016.

• Total interest earning assets increased by $613 million during the third quarter of 2017. Non-covered loans and leases, including equipment under operating lease, grew by $384 million during the quarter. For the nine months ended

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September 30, 2017, total interest earning assets increased by $1.9 billion and non-covered loans and leases grew by $1.3 billion.

• Total deposits increased by $445 million for the quarter ended September 30, 2017 to $21.2 billion. For the nine months ended September 30, 2017, total deposits increased by $1.7 billion.

• At September 30, 2017, 96.7% of the non-covered commercial loan portfolio was rated "pass" and substantially all of the non-covered residential portfolio was current. The ratio of non-performing, non-covered loans to total non-covered loans was 1.00% and the ratio of non-performing, non-covered assets to total assets was 0.69% at September 30, 2017. Non-performing taxi medallion loans comprised 0.60% of total non-covered loans and 0.41% of total assets at September 30, 2017.

• The provision for loan losses for the quarter and nine months ended September 30, 2017 totaled $37.9 million and $63.6 million, respectively, compared to $24.4 million and $42.4 million, respectively, for the comparable periods of the prior year. The most significant reason for these increases in the provision for loan losses was the provision related to the taxi medallion portfolio as discussed further in the sections entitled "Asset Quality" and "Analysis of the Allowance for Loan and Lease Losses."

• Gain on sale of investment securities available for sale, net totaled $26.9 million for the quarter ended September 30, 2017. Substantially all of these gains related to sales of securities formerly covered under the Commercial Shared-Loss Agreement.

• The Company’s capital ratios exceeded all regulatory “well capitalized” guidelines, with a Tier 1 leverage ratio of 8.6%, CET1 and Tier 1 risk-based capital ratios of 11.9% and a Total risk-based capital ratio of 12.7% at September 30, 2017.

• Book value per common share grew to $24.56 at September 30, 2017, a 7.8% increase from September 30, 2016. Tangible book value per common share increased by 8.1% over the same period, to $23.83 at September 30, 2017.

Hurricanes Irma and Harvey

On September 10, 2017, Hurricane Irma made landfall in Florida as a Category 4 hurricane affecting some areas of the state with significant flooding, wind damage and power outages. In addition, the Bank has a limited number of customers and collateral properties located in areas of Texas that were impacted by Hurricane Harvey during August, 2017.

Loan and Lease Portfolio

The Company has assessed the potential impact of the hurricanes on the value of collateral underlying our loans and the ability of borrowers to repay their obligations to the Bank. We believe the storms did not materially impact the ability of the substantial majority of our borrowers to repay their loans; however, uncertainty remains as to the ultimate impact of these events on the level of our loan losses and our results of operations.

In order to assess the impact of these hurricanes on our loan and lease portfolio, the Company performed an extensive review of loans with borrowers and/or collateral located in areas impacted by these storms. This analysis entailed the identification of and direct communication with borrowers located in impacted areas to determine the population of borrowers that may have been significantly impacted as well as consideration of factors including but not limited to level and type of insurance coverage, collateral and lien position and the financial condition of the borrower.

Commercial and commercial real estate loans with an aggregate UPB of approximately $7.1 billion at September 30, 2017 were determined to be either made to borrowers that have significant business operations in or secured by collateral in areas that were potentially impacted by the hurricanes. Substantially all of those borrowers had been contacted as of October 3, 2017 and responses were considered in the determination of the ALLL as of September 30, 2017. As of October 31, 2017, commercial loans with an aggregate UPB of $22.2 million had been downgraded to criticized or classified status as a result of this analysis. Residential mortgage and other consumer loans with a carrying value of approximately $977 million at September 30, 2017, of which $315 million are covered loans, were determined to be either made to borrowers living in or secured by collateral in areas potentially impacted by the hurricanes; such loans with a carrying value of approximately $902 million, of which $312 million are covered loans, were determined to be in severely impacted areas, based on FEMA’s designation as “individual assistance” areas (“FEMA designated areas”). As of October 31, 2017, 74% of borrowers in FEMA designated areas had been contacted or property inspections conducted to assist in assessing the extent of potential damage to underlying collateral. During the quarter ended September 30, 2017, the Company recorded a loan loss provision of $5.4 million related to the impact of Hurricanes Irma and Harvey.

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Impairment of Other Assets

Management also considered the impact of the hurricanes in our analysis of investment securities for OTTI, as well as our evaluation of potential impairment of our investment in equipment under operating lease, LIHTC partnerships, servicing assets and OREO at September 30, 2017 and determined there was no potentially material impact.

Fees, Operations and Facilities

To help those affected by Hurricane Irma, the Company waived or refunded certain fees such as overdraft, NSF and uncollected fees on consumer deposit accounts and late fees on residential mortgage, consumer and small business loans for consumer and small business customers in FEMA designated disaster areas for the period September 10, 2017 through September 30, 2017. In addition, certain residential mortgage and SBA loan customers impacted by the storm may be eligible for assistance in the form of temporary payment deferrals. Waived and refunded fees were not significant.

The Company’s operations and facilities were not materially impacted by Hurricane Irma. The Company continued operating throughout the storm although all of our Florida branch locations were closed from September 8, 2017 through September 11, 2017. The majority of our Florida branch locations and our Miami Lakes corporate headquarters re-opened on September 12, 2017 and all of our Florida branch locations re-opened prior to September 30, 2017.

During the quarter ended September 30, 2017, the Company recorded expenses of $0.6 million related primarily to facilities damage and employee relocation and assistance. We do not expect future expenses related to facilities damage to be material to the Company.

Community Assistance

To help with the recovery efforts of the communities in which we operate, work and live, BankUnited has made donations totaling $100,000 to non-profit organizations focused on recovery and relief efforts in Florida. These organizations were selected based on their ability to immediately deploy resources directly to targeted affected areas.

Results of Operations

Net Interest Income

Net interest income is the difference between interest earned on interest earning assets and interest incurred on interest bearing liabilities and is the primary driver of core earnings. Net interest income is impacted by the relative mix of interest earning assets and interest bearing liabilities, the ratio of interest earning assets to total assets and of interest bearing liabilities to total funding sources, movements in market interest rates, levels of non-performing assets and pricing pressure from competitors.

The mix of interest earning assets is influenced by loan demand, market and competitive conditions in our primary lending markets and by management's continual assessment of the rate of return and relative risk associated with various classes of earning assets. The mix of interest bearing liabilities is influenced by the Company's liquidity profile, management's assessment of the desire for lower cost funding sources weighed against relationships with customers and growth requirements and is impacted by competition for deposits in the Company's markets and the availability and pricing of other sources of funds.

Net interest income is also impacted by the accounting for ACI loans acquired in conjunction with the FSB Acquisition. ACI loans were initially recorded at fair value, measured based on the present value of expected cash flows. The excess of expected cash flows over carrying value, known as accretable yield, is recognized as interest income over the lives of the underlying loans. The positive impact of accretion related to ACI loans on the net interest margin and the interest rate spread is expected to continue to decline as ACI loans comprise a declining percentage of total loans. The proportion of total loans represented by ACI loans is declining as the ACI loans are resolved and new loans are added to the portfolio. ACI loans represented 2.5% and 3.0% of total loans, including premiums, discounts and deferred fees and costs, at September 30, 2017 and December 31, 2016, respectively. As this trend continues, assuming an otherwise stable interest rate environment, we would expect our net interest margin and interest rate spread to decrease as covered loans are resolved.

The impact of ACI loan accounting on net interest income makes it difficult to compare our net interest margin and interest rate spread to those reported by other financial institutions.

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The following table presents, for the periods indicated, information about (i) average balances, the total dollar amount of taxable equivalent interest income from earning assets and the resultant average yields; (ii) average balances, the total dollar amount of interest expense on interest bearing liabilities and the resultant average rates; (iii) net interest income; (iv) the interest rate spread; and (v) the net interest margin. Non-accrual and restructured loans are included in the average balances presented in this table; however, interest income foregone on non-accrual loans is not included. Interest income, yields, spread and margin have been calculated on a tax-equivalent basis for loans and investment securities that are exempt from federal income taxes, at a federal tax rate of 35.0% (dollars in thousands):

	Three Months Ended September 30,
	2017							2016
	Average Balance			Interest (1)		Yield/ Rate (1)(2)		Average Balance			Interest (1)		Yield/ Rate (1)(2)
Assets:
Interest earning assets:
Non-covered loans	$	19,710,115		$	187,928	3.79	%	$	17,813,925		$	158,963	3.56	%
Covered loans	518,026			73,452		56.70	%	700,884			74,487		42.50	%
Total loans	20,228,141			261,380		5.15	%	18,514,809			233,450		5.03	%
Investment securities (3)	7,002,615			55,046		3.14	%	5,898,382			42,262		2.87	%
Other interest earning assets	545,224			3,777		2.75	%	557,490			3,036		2.17	%
Total interest earning assets	27,775,980			320,203		4.60	%	24,970,681			278,748		4.45	%
Allowance for loan and lease losses	(160,231		)					(139,284		)
Non-interest earning assets	1,699,912							1,884,894
Total assets	$	29,315,661						$	26,716,291
Liabilities and Stockholders' Equity:
Interest bearing liabilities:
Interest bearing demand deposits	$	1,590,206		3,415		0.85	%	$	1,437,677		2,224		0.62	%
Savings and money market deposits	9,968,512			21,964		0.87	%	8,349,281			12,974		0.62	%
Time deposits	6,290,056			20,540		1.30	%	5,567,909			15,770		1.13	%
Total interest bearing deposits	17,848,774			45,919		1.02	%	15,354,867			30,968		0.80	%
FHLB advances	4,924,325			16,946		1.37	%	5,143,003			11,956		0.92	%
Notes and other borrowings	402,828			5,314		5.28	%	403,590			5,322		5.27	%
Total interest bearing liabilities	23,175,927			68,179		1.17	%	20,901,460			48,246		0.92	%
Non-interest bearing demand deposits	3,036,046							2,981,017
Other non-interest bearing liabilities	468,735							460,514
Total liabilities	26,680,708							24,342,991
Stockholders' equity	2,634,953							2,373,300
Total liabilities and stockholders' equity	$	29,315,661						$	26,716,291
Net interest income				$	252,024						$	230,502
Interest rate spread						3.43	%						3.53	%
Net interest margin						3.62	%						3.69	%

(1) On a tax-equivalent basis. The tax-equivalent adjustment for tax-exempt loans was $7.6 million and $6.2 million, and the tax-equivalent adjustment for tax-exempt investment securities was $3.2 million and $2.6 million, for the three months ended September 30, 2017 and 2016, respectively.

(2) Annualized.

(3) At fair value except for securities held to maturity.

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	Nine Months Ended September 30,
	2017							2016
	Average Balance			Interest (1)		Yield/ Rate (1)(2)		Average Balance			Interest (1)		Yield/ Rate (1)(2)
Assets:
Interest earning assets:
Non-covered loans	$	19,169,479		$	535,926	3.73	%	$	16,876,786		$	452,525	3.58	%
Covered loans	560,934			225,194		53.54	%	746,709			226,659		40.48	%
Total loans	19,730,413			761,120		5.15	%	17,623,495			679,184		5.14	%
Investment securities (3)	6,569,553			151,337		3.07	%	5,551,249			117,478		2.82	%
Other interest earning assets	557,623			10,606		2.54	%	531,245			8,850		2.22	%
Total interest earning assets	26,857,589			923,063		4.59	%	23,705,989			805,512		4.53	%
Allowance for loan and lease losses	(157,015		)					(133,280		)
Non-interest earning assets	1,754,499							1,946,846
Total assets	$	28,455,073						$	25,519,555
Liabilities and Stockholders' Equity:
Interest bearing liabilities:
Interest bearing demand deposits	$	1,564,229		8,913		0.76	%	$	1,341,218		6,140		0.61	%
Savings and money market deposits	9,557,907			55,741		0.78	%	8,203,676			37,285		0.61	%
Time deposits	5,988,433			55,507		1.24	%	5,177,191			43,002		1.11	%
Total interest bearing deposits	17,110,569			120,161		0.94	%	14,722,085			86,427		0.78	%
FHLB advances	4,889,578			44,262		1.21	%	4,698,492			35,972		1.02	%
Notes and other borrowings	402,821			15,947		5.28	%	403,213			15,967		5.28	%
Total interest bearing liabilities	22,402,968			180,370		1.08	%	19,823,790			138,366		0.93	%
Non-interest bearing demand deposits	3,034,682							2,944,861
Other non-interest bearing liabilities	443,430							431,921
Total liabilities	25,881,080							23,200,572
Stockholders' equity	2,573,993							2,318,983
Total liabilities and stockholders' equity	$	28,455,073						$	25,519,555
Net interest income				$	742,693						$	667,146
Interest rate spread						3.51	%						3.60	%
Net interest margin						3.69	%						3.75	%

(1) On a tax-equivalent basis. The tax-equivalent adjustment for tax-exempt loans was $21.5 million and $16.7 million, and the tax-equivalent adjustment for tax-exempt investment securities was $9.7 million and $7.5 million, for the nine months ended September 30, 2017 and 2016, respectively.

(2) Annualized.

(3) At fair value except for securities held to maturity.

Three months ended September 30, 2017 compared to three months ended September 30, 2016

Net interest income, calculated on a tax-equivalent basis, was $252.0 million for the three months ended September 30, 2017 compared to $230.5 million for the three months ended September 30, 2016, an increase of $21.5 million. The increase in net interest income was comprised of an increase in tax-equivalent interest income of $41.5 million, offset by an increase in interest expense of $19.9 million.

The increase in tax-equivalent interest income was comprised primarily of a $27.9 million increase in interest income from loans and a $12.8 million increase in interest income from investment securities.

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Increased interest income from loans was attributable to a $1.7 billion increase in the average balance outstanding and a 0.12% increase in the tax-equivalent yield to 5.15% for the three months ended September 30, 2017 from 5.03% for the three months ended September 30, 2016. Factors contributing to the increase in the yield on loans included:

• The tax-equivalent yield on non-covered loans was 3.79% for the three months ended September 30, 2017 compared to 3.56% for the three months ended September 30, 2016. The most significant factor contributing to the increased yield on non-covered loans was increases in market interest rates.

• Interest income on covered loans totaled $73.5 million and $74.5 million for the three months ended September 30, 2017 and 2016, respectively. The tax-equivalent yield on those loans increased to 56.70% for the three months ended September 30, 2017 from 42.50% for the three months ended September 30, 2016. The increase in the yield on covered loans resulted primarily from improvements in expected cash flows for ACI loans.

• The impact on the overall yield on loans of increased yields on both covered and non-covered loans considered individually was somewhat offset by the continued increase in non-covered loans, with yields lower than those on covered loans, as a percentage of total loans.

The average balance of investment securities increased by $1.1 billion for the three months ended September 30, 2017 from the three months ended September 30, 2016 while the tax-equivalent yield increased to 3.14% from 2.87%. The most significant factor contributing to the increase in the tax-equivalent yield were increases in coupon rates on floating-rate securities.

The components of the increase in interest expense for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 were a $15.0 million increase in interest expense on deposits and a $5.0 million increase in interest expense on FHLB advances.

The increase in interest expense on deposits was attributable to an increase of $2.5 billion in average interest bearing deposits and an increase in the average cost of interest bearing deposits of 0.22% to 1.02% for the three months ended September 30, 2017 from 0.80% for the three months ended September 30, 2016. These cost increases were generally driven by growth of deposits in competitive markets and a rising market interest rate environment.

The increase in interest expense on FHLB advances reflected an increase in the average cost of advances of 0.45% to 1.37% for the three months ended September 30, 2017 from 0.92% for the three months ended September 30, 2016. The increase in cost was driven by increased market rates and to a lesser extent, an extension of maturities through interest rate swaps.

The net interest margin, calculated on a tax-equivalent basis, for the three months ended September 30, 2017 was 3.62% as compared to 3.69% for the three months ended September 30, 2016. The interest rate spread decreased to 3.43% for the three months ended September 30, 2017 from 3.53% for the three months ended September 30, 2016. The declines in net interest margin and interest rate spread resulted primarily from the cost of interest-bearing liabilities increasing by more than the yield on interest earning assets. This difference was driven primarily by the decline in covered loans as a percentage of total loans. Future trends in the net interest margin will be impacted by changes in market interest rates, including changes in the shape of the yield curve, by the mix of interest earning assets, including the decline in covered loans as a percentage of total loans, and by the Company's ability to manage the cost of funds while growing deposits in competitive markets.

Nine months ended September 30, 2017 compared to nine months ended September 30, 2016

Net interest income, calculated on a tax-equivalent basis, was $742.7 million for the nine months ended September 30, 2017 compared to $667.1 million for the nine months ended September 30, 2016, an increase of $75.5 million. The increase in net interest income was comprised of an increase in tax-equivalent interest income of $117.6 million, offset by an increase in interest expense of $42.0 million.

The increase in tax-equivalent interest income was comprised primarily of an $81.9 million increase in interest income from loans and a $33.9 million increase in interest income from investment securities.

Increased interest income from loans was attributable to a $2.1 billion increase in the average balance and a 0.01% increase in the tax-equivalent yield to 5.15% for the nine months ended September 30, 2017 from 5.14% for the nine months ended September 30, 2016. Offsetting factors contributing to the relatively steady yield on loans included:

• Although the yield on non-covered loans increased to 3.73% for the nine months ended September 30, 2017 from 3.58% for the nine months ended September 30, 2016, lower-yielding non-covered loans comprised a greater percentage of the portfolio for the nine months ended September 30, 2017 than for the corresponding period in 2016. Non-covered loans represented 97.2% of the average balance of loans outstanding for the nine months ended September 30, 2017 compared to 95.8% for the nine months ended September 30, 2016.

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• Interest income on covered loans totaled $225.2 million and $226.7 million for the nine months ended September 30, 2017 and 2016, respectively. The tax-equivalent yield on those loans increased to 53.54% for the nine months ended September 30, 2017 from 40.48% for the nine months ended September 30, 2016.

The average balance of investment securities increased by $1.0 billion for the nine months endedSeptember 30, 2017 from the nine months ended September 30, 2016 while the tax-equivalent yield increased to 3.07% from 2.82%.

The components of the increase in interest expense for the nine months endedSeptember 30, 2017 as compared to the nine months endedSeptember 30, 2016 were a $33.7 million increase in interest expense on deposits and an $8.3 million increase in interest expense on FHLB advances.

The increase in interest expense on deposits was attributable to an increase of $2.4 billion in average interest bearing deposits and an increase in the average cost of interest bearing deposits of 0.16% to 0.94% for the nine months endedSeptember 30, 2017 from 0.78% for the nine months endedSeptember 30, 2016. The increase in interest expense on FHLB advances was primarily a result of an increase in the average cost of advances of 0.19% to 1.21% for the nine months endedSeptember 30, 2017 from 1.02% for the nine months endedSeptember 30, 2016.

Factors contributing to the changes in yields and costs for the nine month periods were generally consistent with those for the three month periods discussed above.

The net interest margin, calculated on a tax-equivalent basis, for the nine months endedSeptember 30, 2017 was 3.69% as compared to 3.75% for the nine months endedSeptember 30, 2016. The interest rate spread decreased to 3.51% for the nine months endedSeptember 30, 2017 from 3.60% for the nine months endedSeptember 30, 2016. The declines in net interest margin and interest rate spread resulted primarily from the factors discussed above.

Provision for Loan Losses

The provision for loan losses is the amount of expense that, based on our judgment, is required to maintain the ALLL at an adequate level to absorb probable losses inherent in the loan portfolio at the balance sheet date and that, in management’s judgment, is appropriate under GAAP. The determination of the amount of the ALLL is complex and involves a high degree of judgment and subjectivity. Our determination of the amount of the allowance and corresponding provision for loan losses considers ongoing evaluations of the credit quality of and level of credit risk inherent in various segments of the loan portfolio and of individually significant credits, levels of non-performing loans and charge-offs, historical and statistical trends and economic and other relevant factors. See “Analysis of the Allowance for Loan and Lease Losses” below for more information about how we determine the appropriate level of the allowance.

The provision for loan losses for the quarter and nine months ended September 30, 2017 included $5.4 million related to the impact of Hurricanes Irma and Harvey. The amount of this provision was determined based on our evaluation of an intensive analysis conducted by our credit teams of the individual loans potentially impacted by these storms, including but not limited to direct contact with borrowers, preliminary assessments of the extent of damage to collateral and impacts on borrowers’ business operations and consideration of the impact of insurance coverage. The amount of the provision related to the impact of these storms is subject to change as individual situations evolve.

For the three months ended September 30, 2017 and 2016, we recorded provisions for loan losses of $37.6 million and $24.9 million, respectively, related to non-covered loans. For the nine months ended September 30, 2017 and 2016, we recorded provisions for loan losses of $60.9 million and $43.6 million, respectively, related to non-covered loans. The amount of the provision is impacted by loan growth, portfolio mix, historical loss rates, the level of charge-offs and specific reserves for impaired loans, and management's evaluation of qualitative factors in the determination of general reserves.

The most significant reason for the increase in the provision for loan losses related to non-covered loans for the quarter ended September 30, 2017 compared to the quarter ended September 30, 2016 was an increase of $28.9 million in the provision related to taxi medallion loans. The provision related to taxi medallion loans totaled $32.7 million for the quarter ended September 30, 2017, compared to $3.9 million for the quarter ended September 30, 2016. A $5.4 million provision recognized in the quarter ended September 30, 2017 related to the impact of hurricanes was more than offset by (i) a net decrease in the relative impact on the provision of changes in quantitative and qualitative loss factors, (ii) the impact of lower loan growth, and (iii) a decrease in provisions for criticized and classified loans.

Factors contributing to the increase in the provision for loan losses related to non-covered loans for the nine months ended September 30, 2017 as compared to the nine months ended September 30, 2016 were generally consistent with those for the three month periods discussed above.

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For the three months ended September 30, 2017 and 2016, we recorded provisions for (recovery of) loan losses of $0.3 million and $(0.4) million, respectively, related to covered loans. For the nine months ended September 30, 2017 and 2016, we recorded provisions for (recovery of) loan losses of $2.7 million and $(1.1) million, respectively, related to covered loans. The provision for the nine months ended September 30, 2017 related primarily to impairment recognized on an ACI HELOC pool. As discussed below in the section entitled "Non-interest income," the impact on our results of operations of any provision for (recovery of) loan losses on covered loans is significantly mitigated by the corresponding impact on the FDIC indemnification asset, recorded in non-interest income.

Non-Interest Income

The Company reported non-interest income of $53.3 million and $25.1 million for the three months ended September 30, 2017 and 2016, respectively. Non-interest income was $111.4 million and $77.1 million for the nine months ended September 30, 2017 and 2016, respectively. A significant portion of our non-interest income has historically related to transactions in the covered assets. We have broken out the significant categories of non-interest income that relate to covered assets in the table below, to assist in the comparison of the amount and composition of our non-interest income with that of other financial institutions.

The following table presents a comparison of the categories of non-interest income for the periods indicated (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Income from resolution of covered assets, net	$	6,400		$	8,883		$	22,066		$	26,426
Loss on sale of covered loans, net	—			(10,033		)	(1,582		)	(14,895		)
Net gain (loss) on FDIC indemnification	(4,838		)	993			(14,174		)	(9,410		)
Other	237			371			957			623
Non-interest income related to the covered assets	1,799			214			7,267			2,744
Service charges and fees	4,938			5,171			15,554			14,529
Gain on sale of non-covered loans	2,447			2,086			8,183			7,535
Gain on investment securities available for sale, net	26,931			3,008			29,194			10,065
Lease financing	13,287			11,188			40,067			32,762
Other non-interest income	3,924			3,408			11,098			9,495
	$	53,326		$	25,075		$	111,363		$	77,130

Non-interest income related to transactions in thecovered assets

The consolidated financial statements reflect the impact of gains or losses arising from transactions in the covered assets. The balance of the FDIC indemnification asset is reduced or increased as a result of decreases or increases in cash flows expected to be received from the FDIC related to these gains or losses. When these transaction gains or losses are recorded, we also record an offsetting amount in the consolidated statement of income line item “Net gain (loss) on FDIC indemnification.” This line item includes the significantly mitigating impact of FDIC indemnification related to the following types of transactions in covered assets:

• gains or losses from the resolution of covered assets;

• provisions for (recoveries of) losses on covered loans;

• gains or losses on the sale of covered loans; and

• gains or losses on covered OREO.

See Note 5 to the consolidated financial statements for further details about the components of these gains and losses associated with covered assets, along with the related additions to or reductions in the amounts recoverable from the FDIC under the Loss Sharing Agreements, as reflected in the consolidated statements of income for the three and nine months ended September 30, 2017 and 2016.

Covered loans may be resolved through prepayment, short sale of the underlying collateral, foreclosure, sale of the loans or charge-off. For loans resolved through prepayment, short sale or foreclosure, the difference between consideration received in resolution of the loans and the carrying value of the loans is recorded in the consolidated statement of income line item “Income

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from resolution of covered assets, net.” Both gains and losses on individual resolutions are included in this line item. Losses from the resolution of covered loans increase the amount recoverable from the FDIC under the Loss Sharing Agreements. Gains from the resolution of covered loans reduce the amount recoverable from the FDIC under the Loss Sharing Agreements. These additions to or reductions in amounts recoverable from the FDIC related to the resolution of covered loans are recorded in non-interest income in the line item “Net gain (loss) on FDIC indemnification” and reflected as corresponding increases or decreases in the FDIC indemnification asset. The amount of income or loss recorded in any period will be impacted by the amount of covered loans resolved, the amount of consideration received, and our ability to accurately project cash flows from ACI loans in future periods.

The following table provides further detail of the components of income from resolution of covered assets, net, for the periods indicated (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Payments in full	$	6,423		$	9,371		$	22,201		$	26,790
Other	(23		)	(488		)	(135		)	(364		)
Income from resolution of covered assets, net	$	6,400		$	8,883		$	22,066		$	26,426

Under the terms of the Purchase and Assumption Agreement with the FDIC, the Bank may sell up to 2.5% of the covered loans based on UPB at the date of the FSB Acquisition, or approximately $280 million, on an annual basis without prior consent of the FDIC. Any losses incurred from such loan sales are covered under the Single Family Shared-Loss Agreement. Any loan sale in excess of this stipulated annual threshold requires approval from the FDIC to be eligible for loss share coverage. However, if the Bank seeks to sell covered loans in excess of the 2.5% threshold in the nine months prior to the stated termination date of loss share coverage, May 21, 2019, and the FDIC does not consent, the Single Family Shared-Loss Agreement will be extended for two additional years with respect to the loans requested to be included in such sales. The Bank will then have the right to sell all or any portion of such loans without FDIC consent at any time within the nine months prior to the extended termination date, and any losses incurred will be covered under the Single Family Shared-Loss Agreement. This final sale mechanism, if exercised, ensures no residual credit risk in our covered loan portfolio that would otherwise arise from credit losses occurring after the termination date of the Single Family Shared-Loss Agreement.

The following table summarizes the gain (loss) recorded on the sale of covered residential loans and the impact of related FDIC indemnification for the periods indicated (in thousands):

	Three Months Ended September 30,			Nine Months Ended September 30,
	2016			2017			2016
Loss on sale of covered loans	$	(10,033	)	$	(1,582	)	$	(14,895	)
Net gain on FDIC indemnification	8,026			1,266			11,958
Net impact on pre-tax earnings	$	(2,007	)	$	(316	)	$	(2,937	)

The Bank did not sell covered residential loans in the three months ended September 30, 2017, due to the potential impact of Hurricane Irma on the market for these loans, the collateral for many of which is located in Florida.

Pricing received on the sale of covered loans may vary based on (i) market conditions, including the interest rate environment, the amount of capital seeking investment and the secondary supply of loans with a particular performance history or collateral type, (ii) the type and quality of collateral, (iii) the performance history of loans included in the sale and (iv) whether or not the loans have been modified. We anticipate that we will continue to exercise our right to sell covered residential loans on a quarterly basis in the future.

Other components of non-interest income

Period over period increases in income from lease financing corresponded to the growth in the portfolio of equipment under operating lease.

Gains on sale of non-covered loans for the three and nine months ended September 30, 2017 and 2016 related primarily to sales of loans by SBF.

54

Gain on sale of investment securities available for sale, net totaled $26.9 million for the quarter ended September 30, 2017. Substantially all of these gains resulted from the sale of securities formerly covered under the Commercial Shared-Loss Agreement and originally acquired at significant discounts in the FSB Acquisition. Other gains on investment securities available for sale for the three and nine months ended September 30, 2017 and 2016 related to sales of securities in the normal course of managing liquidity, portfolio duration and yield.

Non-Interest Expense

The following table presents the components of non-interest expense for the periods indicated (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Employee compensation and benefits	$	58,327	$	55,162	$	178,386	$	166,374
Occupancy and equipment	18,829		18,867		56,689		57,199
Amortization of FDIC indemnification asset	45,225		38,957		135,351		116,711
Deposit insurance expense	5,764		4,943		16,827		12,866
Professional fees	2,748		3,884		12,573		10,119
Telecommunications and data processing	3,452		3,746		10,481		10,800
Depreciation of equipment under operating lease	8,905		6,855		25,655		20,004
Other non-interest expense	13,455		15,590		37,735		40,151
	$	156,705	$	148,004	$	473,697	$	434,224

Annualized non-interest expense as a percentage of average assets was 2.1% and 2.2% for the three and nine months ended September 30, 2017, respectively, and 2.2% and 2.3% for the three and nine months ended September 30, 2016, respectively. Excluding amortization of the FDIC indemnification asset, non-interest expense as a percentage of average assets was 1.5% and 1.6% for the three and nine months ended September 30, 2017, respectively, and 1.6% and 1.7% for the three and nine months ended September 30, 2016, respectively. The more significant changes in the components of non-interest expense are discussed below.

Employee compensation and benefits

As is typical for financial institutions, employee compensation and benefits represents the single largest component of recurring non-interest expense. Employee compensation and benefits for the three and nine months ended September 30, 2017 increased by $3.2 million and $12.0 million compared to the corresponding periods in 2016. The increases for the three and nine months ended September 30, 2017 primarily reflected increased headcount and general increases in compensation levels.

Amortization of FDIC indemnification asset

Amortization of FDIC indemnification asset totaled $45.2 million and $135.4 million, respectively, for the three and nine months ended September 30, 2017 compared to $39.0 million and $116.7 million, respectively, for the three and nine months ended September 30, 2016.

The FDIC indemnification asset was initially recorded at its estimated fair value, representing the present value of estimated future cash payments from the FDIC for probable losses on covered assets. As projected cash flows from the ACI loans have increased, the yield on the loans has increased accordingly and the estimated future cash payments from the FDIC have decreased. This change in estimated cash flows is recognized prospectively, consistent with the recognition of the increased cash flows from the ACI loans. As a result, the FDIC indemnification asset is being amortized to the amount of the estimated future cash flows. For the three and nine months ended September 30, 2017, the average rate at which the FDIC indemnification asset was amortized was 46.62% and 41.19%, respectively, compared to 25.36% and 23.48%, respectively, during the comparable periods in 2016.

The rate of amortization will increase if estimated future cash payments from the FDIC decrease. The amount of amortization is impacted by both the change in the amortization rate and the decrease in the average balance of the indemnification asset. As we continue to submit claims under the Loss Sharing Agreements and recognize periodic amortization, the balance of the indemnification asset will continue to decline.

See Note 5 to the consolidated financial statements for a rollforward of the FDIC indemnification asset for the nine months ended September 30, 2017 and the year ended December 31, 2016. The entire balance of the FDIC indemnification asset relates

55

to residential loans and OREO covered under the Single Family Shared-Loss Agreement. The following table presents the carrying value of the FDIC indemnification asset and the estimated future cash flows at the dates indicated (in thousands):

	September 30, 2017			December 31, 2016
FDIC indemnification asset	$	349,617		$	515,933
Less expected amortization	(173,685		)	(245,350		)
Amount expected to be collected from the FDIC	$	175,932		$	270,583

The amount of expected amortization reflects the impact of improvements in cash flows expected to be collected from the covered loans, as well as the impact of time value resulting from the discounting of the asset when it was initially established. This amount will be amortized to non-interest expense using the effective interest method over the period during which cash flows from the FDIC are expected to be collected, which is limited to the lesser of the contractual term of the Single Family Shared-Loss Agreement and the expected remaining life of the indemnified assets.

Deposit insurance expense

Deposit insurance expense increased $0.8 million and $4.0 million, respectively, for the three and nine months ended September 30, 2017 compared to the corresponding periods in 2016. These increases primarily reflect the growth of the balance sheet, the large bank surcharge imposed by the FDIC, which began in the third quarter of 2016, and increases in certain components of the Bank's assessment rate.

Depreciation of equipment under operating lease

Depreciation of equipment under operating lease increased by $2.1 million and $5.7 million, respectively, for the three and nine months ended September 30, 2017 compared to the corresponding periods in 2016. These increases generally correspond to the growth in the portfolio of equipment under operating lease.

Other non-interest expense

The most significant components of other non-interest expense are advertising and promotion, costs related to lending activities and deposit generation, OREO related expenses, insurance, travel and general office expense. Other non-interest expense for the three months ended September 30, 2017 includes $0.6 million related primarily to facilities damage and employee relocation and assistance due to the impact of Hurricane Irma. We do not expect future expenses related to facilities damage and employee relocation to be material to the Company.

Income Taxes

The Company’s effective income tax rate was 32.2% and 31.2% for the three and nine months ended September 30, 2017, respectively, compared to 31.7% and 33.2% for the three and nine months ended September 30, 2016, respectively. Significant components included in the reconciliation of the Company's effective income tax rate to the statutory federal tax rate of 35.0% included the effect of state income taxes and the impact of income not subject to federal tax for each of the periods presented. In addition, the effective income tax rate for the three and nine months ended September 30, 2017 reflected the impact of $0.3 million and $3.2 million, respectively, in excess tax benefits resulting from activity related to vesting of share-based awards and exercise of stock options.

Analysis of Financial Condition

Average interest-earning assets increased $3.2 billion to $26.9 billion for the nine months endedSeptember 30, 2017 from $23.7 billion for the nine months endedSeptember 30, 2016. This increase was driven by a $2.1 billion increase in the average balance of outstanding loans and a $1.0 billion increase in the average balance of investment securities. The increase in average loans reflected growth of $2.3 billion in average non-covered loans outstanding, partially offset by a $186 million decrease in the average balance of covered loans. The decrease in average non-interest earning assets period over period primarily reflected a decrease in the FDIC indemnification asset. Growth in interest earning assets, resolution of covered loans and declines in the amount of the FDIC indemnification asset are trends that are expected to continue.

Average interest bearing liabilities increased $2.6 billion to $22.4 billion for the nine months endedSeptember 30, 2017 from $19.8 billion for the nine months endedSeptember 30, 2016, due to increases of $2.4 billion in average interest bearing deposits and $191 million in average FHLB advances. Average non-interest bearing deposits increased by $90 million. We expect growth in average deposits to continue, corresponding to anticipated growth in interest earning assets.

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Average stockholders' equity increased by $255 million, due primarily to the retention of earnings, but also reflecting proceeds from the exercise of stock options and an increase in accumulated other comprehensive income.

Investment Securities Available for Sale

The following table shows the amortized cost and fair value of investment securities available for sale as of the dates indicated (in thousands):

	September 30, 2017				December 31, 2016
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
U.S. Treasury securities	$	24,969	$	24,957	$	4,999	$	5,005
U.S. Government agency and sponsored enterprise residential MBS	2,332,616		2,348,687		1,513,028		1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	139,966		139,220		126,754		124,586
Private label residential MBS and CMOs	507,381		527,858		334,167		375,098
Private label commercial MBS	1,140,465		1,153,601		1,180,386		1,187,624
Single family rental real estate-backed securities	566,635		572,948		858,339		861,251
Collateralized loan obligations	695,414		700,319		487,678		487,296
Non-mortgage asset-backed securities	80,255		82,637		187,660		186,736
Preferred stocks	60,716		70,716		76,180		88,203
State and municipal obligations	666,013		677,015		705,884		698,546
SBA securities	572,540		586,675		517,129		523,906
Other debt securities	4,056		8,839		3,999		8,091
	$	6,791,026	$	6,893,472	$	5,996,203	$	6,073,584

Our investment strategy has focused on insuring adequate liquidity, adding a suitable balance of high credit quality, diversifying assets to the consolidated balance sheet, managing interest rate risk, and generating acceptable returns given our established risk parameters. We have sought to maintain liquidity by investing a significant portion of the portfolio in high quality liquid securities including U.S. Treasury securities, SBA securities and U.S. Government agency MBS. Investment grade municipal securities provide liquidity along with higher tax-equivalent yields at longer durations than the portfolio in general. We have also invested in highly rated structured products that, while somewhat less liquid, provide us with attractive yields. Relatively short effective portfolio duration helps mitigate interest rate risk arising from the currently low level of market interest rates. The weighted average expected life of the investment portfolio as of September 30, 2017 was 4.9 years and the effective duration was 1.7 years. 

The following table shows the scheduled maturities, carrying values and current yields for investment securities available for sale as of September 30, 2017. Scheduled maturities have been adjusted for anticipated prepayments of MBS and other pass through securities. Yields on tax-exempt securities have been calculated on a tax-equivalent basis (dollars in thousands):

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	Within One Year				After One Year Through Five Years				After Five Years Through Ten Years				After Ten Years				Total
	Carrying Value		Weighted Average Yield		Carrying Value		Weighted Average Yield		Carrying Value		Weighted Average Yield		Carrying Value		Weighted Average Yield		Carrying Value		Weighted Average Yield
U.S. Treasury securities	$	24,957	1.19	%	$	—	—	%	$	—	—	%	$	—	—	%	$	24,957	1.19	%
U.S. Government agency and sponsored enterprise residential MBS	355,685		2.94	%	860,103		2.28	%	893,121		2.14	%	239,778		2.15	%	2,348,687		2.31	%
U.S. Government agency and sponsored enterprise commercial MBS	5,562		3.80	%	11,066		3.71	%	83,066		2.50	%	39,526		3.57	%	139,220		2.95	%
Private label residential MBS and CMOs	113,951		4.01	%	284,366		3.82	%	101,127		4.07	%	28,414		4.39	%	527,858		3.94	%
Private label commercial MBS	90,284		3.80	%	786,542		3.57	%	276,775		3.20	%	—		—	%	1,153,601		3.50	%
Single family rental real estate-backed securities	1,516		3.18	%	546,920		2.92	%	24,512		3.70	%	—		—	%	572,948		2.95	%
Collateralized loan obligations	—		—	%	573,474		3.32	%	126,845		3.52	%	—		—	%	700,319		3.36	%
Non-mortgage asset-backed securities	11,999		3.91	%	70,638		3.63	%	—		—	%	—		—	%	82,637		3.67	%
State and municipal obligations	—		—	%	27,509		3.00	%	624,758		4.46	%	24,748		5.60	%	677,015		4.45	%
SBA securities	93,080		2.54	%	245,991		2.50	%	150,116		2.47	%	97,488		2.43	%	586,675		2.49	%
Other debt securities	—		—	%	—		—	%	1,900		9.17	%	6,939		9.13	%	8,839		9.14	%
	$	697,034	3.13	%	$	3,406,609	3.04	%	$	2,282,220	3.11	%	$	436,893	2.74	%	6,822,756		3.05	%
Preferred stocks with no scheduled maturity																	70,716		8.66	%
Total investment securities available for sale																	$	6,893,472	3.11	%

The available for sale investment securities portfolio was in a net unrealized gain position of $102.4 million at September 30, 2017 with aggregate fair value equal to 101.5% of amortized cost. Net unrealized gains included $110.3 million of gross unrealized gains and $7.9 million of gross unrealized losses. Investment securities available for sale in an unrealized loss position at September 30, 2017 had an aggregate fair value of $1.0 billion. At September 30, 2017, 96.7% of investment securities available for sale were backed by the U.S. Government, U.S. Government agencies or sponsored enterprises or were rated AAA , AA or A, based on the most recent third-party ratings. Investment securities available for sale totaling $33 million were rated below investment grade or not rated at September 30, 2017, all of which were acquired in the FSB Acquisition and substantially all of which were in unrealized gain positions at September 30, 2017.

We evaluate the credit quality of individual securities in the portfolio quarterly to determine whether any of the investments in unrealized loss positions are other-than-temporarily impaired. This evaluation considers, but is not necessarily limited to, the following factors, the relative significance of which varies depending on the circumstances pertinent to each individual security:

• our intent to hold the security until maturity or for a period of time sufficient for a recovery in value;

• whether it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis;

• the length of time and extent to which fair value has been less than amortized cost;

• adverse changes in expected cash flows;

• collateral values and performance;

• the payment structure of the security, including levels of subordination or over-collateralization;

• changes in the economic or regulatory environment;

• the general market condition of the geographic area or industry of the issuer;

• the issuer’s financial condition, performance and business prospects; and

• changes in credit ratings.

Our evaluation of non-agency impaired securities for OTTI as of September 30, 2017 included consideration of the potential impacts of Hurricanes Irma and Harvey. Our considerations included but were not necessarily limited to (i) observations of market pricing since the hurricanes, (ii) whether a significant portion of the underlying collateral was in an

58

impacted area, (iii) whether credit enhancement significantly exceeded the balance of collateral in impacted areas, (iv) for residential mortgage-backed securities, the evaluation of the extent and nature of damage to residential collateral for loans in the Bank’s residential loan portfolio located in the same areas, and (v) discussions with sponsors or managers of individual securities about specific collateral impact.

During the three and nine months ended September 30, 2016, OTTI was recognized on two positions in one private label commercial MBS. These positions were in unrealized loss positions at September 30, 2016 and the Company intended to sell the security before recovery of the amortized cost basis. No securities were determined to be other-than-temporarily impaired at September 30, 2017, or during the three and nine months then ended.

We do not intend to sell securities in significant unrealized loss positions at September 30, 2017. Based on an assessment of our liquidity position and internal and regulatory guidelines for permissible investments and concentrations, it is not more likely than not that we will be required to sell securities in significant unrealized loss positions prior to recovery of amortized cost basis. The severity of impairment of individual securities in the portfolio is generally not material. Unrealized losses in the portfolio at September 30, 2017 were primarily attributable to an increase in market interest rates subsequent to the date the securities were acquired.

The timely repayment of principal and interest on U.S. Treasury, U.S. Government agency and sponsored enterprise securities in unrealized loss positions is explicitly or implicitly guaranteed by the full faith and credit of the U.S. Government. Management performed projected cash flow analyses of the private label residential MBS and CMOs, private label commercial MBS and non-mortgage asset-backed securities in unrealized loss positions, incorporating CUSIP level assumptions consistent with the collateral characteristics of each security including collateral default rate, voluntary prepayment rate, severity and delinquency assumptions. Based on the results of this analysis, no credit losses were projected. Management's analysis of the credit characteristics of individual securities and the underlying collateral and levels of subordination for each of the single family rental real estate-backed securities in unrealized loss positions is not indicative of projected credit losses. Management's analysis of the state and municipal obligations in unrealized loss positions included reviewing the ratings of the securities and the results of credit surveillance performed by an independent third party. Given the expectation of timely repayment of principal and interest and the generally limited severity of impairment, the impairments were considered to be temporary.

For further discussion of our analysis of investment securities for OTTI, see Note 3 to the consolidated financial statements.

We use third-party pricing services to assist us in estimating the fair value of investment securities. We perform a variety of procedures to ensure that we have a thorough understanding of the methodologies and assumptions used by the pricing services including obtaining and reviewing written documentation of the methods and assumptions employed, conducting interviews with valuation desk personnel and reviewing model results and detailed assumptions used to value selected securities as considered necessary. Our classification of prices within the fair value hierarchy is based on an evaluation of the nature of the significant assumptions impacting the valuation of each type of security in the portfolio. We have established a robust price challenge process that includes a review by our treasury front office of all prices provided on a monthly basis. Any price evidencing unexpected month over month fluctuations or deviations from our expectations based on recent observed trading activity and other information available in the marketplace that would impact the value of the security is challenged. Responses to the price challenges, which generally include specific information about inputs and assumptions incorporated in the valuation and their sources, are reviewed in detail. If considered necessary to resolve any discrepancies, a price will be obtained from an additional independent valuation specialist. We do not typically adjust the prices provided, other than through this established challenge process. Our primary pricing services utilize observable inputs when available, and employ unobservable inputs and proprietary models only when observable inputs are not available. As a matter of course, the services validate prices by comparison to recent trading activity whenever such activity exists. Quotes obtained from the pricing services are typically non-binding.

We have also established a quarterly price validation process to assess the propriety of the pricing methodologies utilized by our primary pricing services by independently verifying the prices of a sample of securities in the portfolio. Sample sizes vary based on the type of security being priced, with higher sample sizes applied to more difficult to value security types. Verification procedures may consist of obtaining prices from an additional outside source or internal modeling, generally based on Intex. We have established acceptable percentage deviations from the price provided by the initial pricing source. If deviations fall outside the established parameters, we will obtain and evaluate more detailed information about the assumptions and inputs used by each pricing source or, if considered necessary, employ an additional valuation specialist to price the security in question. Pricing issues identified through this evaluation are addressed with the applicable pricing service and methodologies or inputs are revised as determined necessary. Depending on the results of the validation process, sample sizes may be extended for particular classes of securities. Results of the validation process are reviewed by the treasury front office and by senior management.

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The majority of our investment securities are classified within level 2 of the fair value hierarchy. U.S. Treasury securities and certain preferred stocks are classified within level 1 of the hierarchy. At September 30, 2017 and December 31, 2016, 1.0% and 2.1%, respectively, of our investment securities were classified within level 3 of the fair value hierarchy. Securities classified within level 3 of the hierarchy at September 30, 2017 included certain private label residential MBS and trust preferred securities. These securities were classified within level 3 of the hierarchy because proprietary assumptions related to voluntary prepayment rates, default probabilities, loss severities and discount rates were considered significant to the valuation. There were no transfers of investment securities between levels of the fair value hierarchy during the nine months ended September 30, 2017 and 2016.

For additional discussion of the fair values of investment securities, see Note 10 to the consolidated financial statements.

Loans Held for Sale

Loans held for sale at September 30, 2017 included $32 million of commercial loans originated by SBF with the intent to sell in the secondary market. Commercial loans held for sale are comprised of the portion of loans guaranteed by U.S. government agencies. Loans are generally sold with servicing retained. Servicing activity did not have a material impact on the results of operations for the three and nine months ended September 30, 2017 and 2016.

Loans

The loan portfolio comprises the Company’s primary interest-earning asset. The following tables show the composition of the loan portfolio and the breakdown of the portfolio among non-covered loans, covered ACI loans and covered non-ACI loans at the dates indicated (dollars in thousands):

	September 30, 2017
				Covered Loans									Percent of Total
	Non-Covered Loans			ACI			Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,958,205		$	470,300		$	28,589		$	4,457,094		21.7	%
Home equity loans and lines of credit	1,644			5,640			37,764			45,048			0.2	%
Other consumer loans	20,166			—			—			20,166			0.1	%
	3,980,015			475,940			66,353			4,522,308			22.0	%
Commercial:
Multi-family	3,358,801			—			—			3,358,801			16.3	%
Non-owner occupied commercial real estate	4,183,275			—			—			4,183,275			20.4	%
Construction and land	271,994			—			—			271,994			1.3	%
Owner occupied commercial real estate	1,959,464			—			—			1,959,464			9.5	%
Commercial and industrial	3,900,290			—			—			3,900,290			19.0	%
Commercial lending subsidiaries	2,374,193			—			—			2,374,193			11.5	%
	16,048,017			—			—			16,048,017			78.0	%
Total loans	20,028,032			475,940			66,353			20,570,325			100.0	%
Premiums, discounts and deferred fees and costs, net	44,422			—			(4,317		)	40,105
Loans including premiums, discounts and deferred fees and costs	20,072,454			475,940			62,036			20,610,430
Allowance for loan and lease losses	(153,725		)	(1,812		)	(3,036		)	(158,573		)
Loans, net	$	19,918,729		$	474,128		$	59,000		$	20,451,857

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	December 31, 2016
				Covered Loans								Percent of Total
	Non-Covered Loans			ACI		Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,422,425		$	532,348	$	36,675		$	3,991,448		20.6	%
Home equity loans and lines of credit	1,120			3,894		47,629			52,643			0.3	%
Other consumer loans	24,365			—		—			24,365			0.1	%
	3,447,910			536,242		84,304			4,068,456			21.0	%
Commercial:
Multi-family	3,824,973			—		—			3,824,973			19.8	%
Non-owner occupied commercial real estate	3,739,235			—		—			3,739,235			19.3	%
Construction and land	311,436			—		—			311,436			1.6	%
Owner occupied commercial real estate	1,736,858			—		—			1,736,858			9.0	%
Commercial and industrial	3,391,614			—		—			3,391,614			17.5	%
Commercial lending subsidiaries	2,280,685			—		—			2,280,685			11.8	%
	15,284,801			—		—			15,284,801			79.0	%
Total loans	18,732,711			536,242		84,304			19,353,257			100.0	%
Premiums, discounts and deferred fees and costs, net	48,641			—		(6,504		)	42,137
Loans including premiums, discounts and deferred fees and costs	18,781,352			536,242		77,800			19,395,394
Allowance for loan and lease losses	(150,853		)	—		(2,100		)	(152,953		)
Loans, net	$	18,630,499		$	536,242	$	75,700		$	19,242,441

Total loans, including premiums, discounts and deferred fees and costs, increased by $1.2 billion to $20.6 billion at September 30, 2017, from $19.4 billion at December 31, 2016. Non-covered loans grew by $1.3 billion while covered loans declined by $76 million from December 31, 2016 to September 30, 2017. Non-covered residential and other consumer loans grew by $538 million and non-covered commercial loans grew by $753 million during the nine months endedSeptember 30, 2017.

Growth in non-covered loans, including premiums, discounts and deferred fees and costs, for the nine months endedSeptember 30, 2017 reflected an increase of $536 million for the Florida franchise, a decrease of $74 million for the New York franchise and an increase of $829 million for the national platforms.

The following tables show the composition of the non-covered loan portfolio and the breakdown among the Florida and New York franchises and national platforms at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (dollars in thousands):

	September 30, 2017
	Florida			New York			National			Total
Residential and other consumer	$	228,300		$	206,308		$	3,599,004		$	4,033,612
Commercial:
Multi-family	555,193			2,807,068			—			3,362,261
Non-owner occupied commercial real estate	2,572,743			1,501,597			99,229			4,173,569
Construction and land	123,655			134,854			12,947			271,456
Owner occupied commercial real estate	1,110,581			748,339			97,829			1,956,749
Commercial and industrial	2,509,353			891,978			490,751			3,892,082
Commercial lending subsidiaries	—			—			2,382,725			2,382,725
	$	7,099,825		$	6,290,144		$	6,682,485		$	20,072,454
	35.4		%	31.3		%	33.3		%	100.0		%

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	December 31, 2016
	Florida			New York			National			Total
Residential and other consumer:	$	254,139		$	226,154		$	3,015,482		$	3,495,775
Commercial:
Multi-family	520,263			3,309,411			—			3,829,674
Non-owner occupied commercial real estate	2,337,806			1,294,231			99,771			3,731,808
Construction and land	174,494			125,983			10,436			310,913
Owner occupied commercial real estate	1,042,441			602,155			91,254			1,735,850
Commercial and industrial	2,234,393			806,660			346,085			3,387,138
Commercial lending subsidiaries	—			—			2,290,194			2,290,194
	$	6,563,536		$	6,364,594		$	5,853,222		$	18,781,352
	34.9		%	33.9		%	31.2		%	100.0		%

The increase in non-owner occupied commercial real estate loans and the decrease in multi-family loans in the New York franchise over the nine months ended September 30, 2017 includes the impact of reclassifying $207 million of loans on mixed-use properties from multi-family to non-owner occupied commercial real estate loans, based on the primary source of rental income on those properties.

Residential mortgages and other consumer loans

Residential mortgages and other consumer loans totaled $4.5 billion, or 22.0% of total loans, at September 30, 2017 and $4.1 billion, or 21.0% of total loans, at December 31, 2016.

The non-covered residential loan portfolio is primarily comprised of loans purchased on a national basis through established correspondent channels. The portfolio also includes loans originated through retail channels in our Florida and New York geographic footprint prior to the termination of our retail residential mortgage origination business in early 2016. Non-covered residential mortgage loans are primarily closed-end, first lien jumbo mortgages for the purchase or re-finance of owner occupied property. The loans have terms ranging from 10 to 30 years, with either fixed or adjustable interest rates. At September 30, 2017, $113 million or 2.8% of non-covered residential mortgage loans were interest-only loans, substantially all of which begin amortizing 10 years after origination.

We do not originate or acquire option ARMs, “no-doc” or “reduced-doc” mortgages and do not utilize wholesale mortgage origination channels although the covered loan portfolio contains loans with these characteristics. The Company’s exposure to future losses on these mortgage loans is mitigated by the Single Family Shared-Loss Agreement.

The following charts present the distribution of the non-covered 1-4 single family residential mortgage portfolio by interest rate terms and contractual lives at the dates indicated:

(1) Fixed-rate loans with contractual terms of 20 years comprise less than 3% of the total at both September 30, 2017 and December 31, 2016, and are reported with 15 year fixed above.

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The geographic concentration of the non-covered 1-4 single family residential portfolio is summarized as follows at the dates indicated (dollar in thousands):

	September 30, 2017				December 31, 2016
California	$	1,052,154	26.2	%	$	904,107	26.1	%
New York	848,123		21.1	%	763,824		22.0	%
Florida	530,056		13.2	%	487,294		14.0	%
District of Columbia	177,978		4.4	%	123,825		3.6	%
Virginia	175,550		4.4	%	152,113		4.4	%
Others (1)	1,227,983		30.7	%	1,039,186		29.9	%
	$	4,011,844	100.0	%	$	3,470,349	100.0	%

(1) No other state represented borrowers with more than 4.0% of non-covered 1-4 single family residential loans outstanding at September 30, 2017 or December 31, 2016.

Home equity loans and lines of credit are not significant to the non-covered loan portfolio.

Other consumer loans are comprised primarily of consumer installment financing, loans secured by certificates of deposit, unsecured personal lines of credit and demand deposit account overdrafts.

Commercial loans and leases

The commercial portfolio segment includes loans secured by multi-family properties, loans secured by both owner-occupied and non-owner occupied commercial real estate, a limited amount of construction and land loans, commercial and industrial loans and direct financing leases.

Management’s loan origination strategy is heavily focused on the commercial portfolio segment, which comprised 80.1% and 81.6% of non-covered loans as of September 30, 2017 and December 31, 2016, respectively.

Commercial real estate loans include term loans secured by owner and non-owner occupied income producing properties including rental apartments, mixed-use properties, industrial properties, retail shopping centers, free-standing single-tenant buildings, office buildings, warehouse facilities and hotels as well as real estate secured lines of credit.

The following charts present the distribution of non-owner occupied commercial real estate by product types at the dates indicated:

Loans secured by commercial real estate typically have shorter repayment periods and re-price more frequently than 1-4 single family residential loans but may have longer terms and re-price less frequently than commercial and industrial loans. The Company’s underwriting standards generally provide for loan terms of five to ten years, with amortization schedules of no more than thirty years. LTV ratios are typically limited to no more than 80%. Owner-occupied commercial real estate loans typically have risk profiles more closely aligned with that of commercial and industrial loans than with other types of commercial real estate loans. Construction and land loans represented only 1.3% of the total loan portfolio at September 30, 2017. Construction and land loans are generally made for projects expected to stabilize within eighteen months of completion

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in sub-markets with strong fundamentals and, to a lesser extent, for-sale residential projects to experienced developers with a strong cushion between market prices and loan basis.

Commercial and industrial loans are typically made to small and middle market businesses and include equipment loans, secured and unsecured working capital facilities, formula-based loans, mortgage warehouse lines, taxi medallion loans, SBA product offerings and business acquisition finance credit facilities. These loans may be structured as term loans, typically with maturities of three to seven years, or revolving lines of credit which may have multi-year maturities. Commercial loans include shared national credits totaling $1.5 billion at September 30, 2017, typically relationship based loans to borrowers in our geographic footprint.

Through its commercial lending subsidiaries, Pinnacle and Bridge, the Bank provides equipment and franchise financing on a national basis using both loan and lease structures. Pinnacle provides financing to state and local governmental entities directly and through vendor programs and alliances. Pinnacle offers a full array of financing structures including equipment lease purchase agreements and direct (private placement) bond re-fundings and loan agreements. Bridge has two operating divisions. The franchise finance division offers franchise acquisition, expansion and equipment financing, typically to experienced operators in well-established concepts. The equipment finance division provides primarily transportation equipment financing through a variety of loan and lease structures. The Bank's SBF unit primarily originates SBA guaranteed commercial and commercial real estate loans, generally selling the guaranteed portion in the secondary market and retaining the unguaranteed portion in portfolio. The Bank engages in mortgage warehouse lending on a national basis.

The following table presents the recorded investment in loans and direct finance leases held for investment for each of our national commercial lending platforms at the dates indicated (in thousands):

	September 30, 2017		December 31, 2016
Pinnacle	$	1,393,965	$	1,317,820
Bridge - franchise finance	421,821		426,661
Bridge - transportation equipment finance	566,939		545,713
SBF	235,433		225,241
Mortgage warehouse lending	465,323		322,305
	$	3,083,481	$	2,837,740

The geographic concentration of the commercial loans and direct financing leases in the national platforms is summarized as follows at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (dollars in thousands):

	September 30, 2017				December 31, 2016
Florida	$	593,307	19.2	%	$	543,445	19.2	%
California	464,853		15.1	%	421,480		14.9	%
Arizona	171,321		5.6	%	133,549		4.7	%
Texas	161,662		5.2	%	118,122		4.2	%
Iowa	152,869		5.0	%	161,874		5.7	%
Virginia	131,041		4.2	%	138,417		4.9	%
All others (1)	1,408,428		45.7	%	1,320,853		46.4	%
	$	3,083,481	100.0	%	$	2,837,740	100.0	%

(1) No other state represented borrowers with more than 4.0% of loans outstanding at September 30, 2017 or December 31, 2016.

Equipment under Operating Lease

Equipment under operating lease increased by $48 million to $588 million at September 30, 2017, from $540 million at December 31, 2016. The portfolio consisted primarily of 5,424 railcars, including hoppers, tank cars, boxcars, auto carriers, center beams and gondolas leased to North American commercial end-users. The portfolio also included non-commercial aircraft and other transport equipment. The largest concentrations of rail cars were 2,264 hopper cars and 1,683 tank cars, primarily used to ship sand and petroleum products, respectively, for the energy industry. Equipment with a carrying value of $288 million at September 30, 2017 was leased to companies for use in the energy industry.

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Asset Quality

In discussing asset quality, we distinguish between covered loans and non-covered loans. Although the risk profile of covered loans is higher than that of non-covered loans, our exposure to loss related to covered loans is significantly mitigated by the fair value basis recorded in these loans resulting from the application of acquisition accounting and by the Single Family Shared-Loss Agreement. At September 30, 2017, residential loans covered under the Single Family Shared-Loss Agreement totaled $538 million.

We have established a robust credit risk management framework, put in place an experienced team to lead the workout and recovery process for the commercial and commercial real estate portfolios and implemented a dedicated internal credit review function. We have an experienced resolution team in place for covered residential mortgage loans, and have implemented outsourcing arrangements with industry leading firms in certain areas such as OREO resolution. 

Loan performance is monitored by our credit administration and workout and recovery departments. Generally, commercial relationships with balances in excess of defined thresholds are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. The defined thresholds range from $1 million to $3 million. Additionally, commercial loans are regularly reviewed by our internal credit review department. The Company utilizes a 13 grade internal asset risk classification system as part of its efforts to monitor and maintain commercial asset quality. Loans exhibiting potential credit weaknesses that deserve management’s close attention and that if left uncorrected may result in deterioration of the repayment capacity of the borrower are categorized as special mention. These borrowers may exhibit negative financial trends or erratic financial performance, strained liquidity, marginal collateral coverage, declining industry trends or weak management. Loans with well-defined credit weaknesses that may result in a loss if the deficiencies are not corrected are assigned a risk rating of substandard. These borrowers may exhibit payment defaults, inadequate cash flows, operating losses, increasing balance sheet leverage, project cost overruns, unreasonable construction delays, exhausted interest reserves, declining collateral values, frequent overdrafts or past due real estate taxes. Loans with weaknesses so severe that collection in full is highly questionable or improbable, but because of certain reasonably specific pending factors have not been charged off, are assigned an internal risk rating of doubtful.

Residential mortgage loans and consumer loans are not individually risk rated. Delinquency status is the primary measure we use to monitor the credit quality of these loans. We also consider original LTV and FICO score to be significant indicators of credit quality for the non-covered 1-4 single family residential portfolio.

Although our assessment is ongoing and the results of that assessment are subject to change in the future, we do not currently believe the ability of the substantial majority of our borrowers to repay their loans or the value of the collateral securing those loans has been materially impacted by Hurricanes Irma and Harvey.

Non-covered Loans and Leases

Commercial Loans

The ongoing asset quality of significant commercial loans is monitored on an individual basis through our regular credit review and risk rating process. We believe internal risk rating is the best indicator of the credit quality of commercial loans. Homogenous groups of smaller balance commercial loans may be monitored collectively.

The following table summarizes the Company's commercial credit exposure, based on internal risk rating, at the dates indicated (in thousands):

	September 30, 2017		December 31, 2016
Pass	$	15,505,587	$	14,897,121
Special mention	150,899		72,225
Substandard (1)	376,540		304,713
Doubtful	5,816		11,518
	$	16,038,842	$	15,285,577

(1) The balance of substandard loans at September 30, 2017 and December 31, 2016 included $121 million and $138 million, respectively, of taxi medallion finance loans. Criticized and classified loans represented 3.3% of the commercial loan portfolio, of which 0.8% were taxi medallion loans, at September 30, 2017. See Note 4 to the consolidated financial statements for more detailed information about risk rating of commercial loans.

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Taxi Medallion Finance

The commercial and industrial loan portfolio includes exposure to taxi medallion finance of $121 million at September 30, 2017. The estimated value of underlying taxi medallion collateral and liquidity in the market for sales of medallions, a potential secondary source of repayment, have declined significantly in recent years due to competitive developments in the transportation-for-hire industry. Due to the ongoing trend of declining estimated cash flows from the operation of taxi medallions leading to declines in medallion valuations, the entire taxi medallion portfolio was placed on non-accrual status and risk rated substandard as of September 30, 2017. In addition, partial charge-offs were recognized on all taxi medallion loans with carrying values in excess of collateral values, determined using the cash flow template discussed below, to reduce the carrying value of those loans to this estimated collateral value.

We update our analysis of the cash flow generating capacity of the operation of New York City medallions on a regular basis using current available taxi industry data from which taxi medallion values and prospective debt service capacity are estimated. This analysis is based on an extensive data set obtained from the NYTLC and assumptions that we believe are reasonable estimates of fleet utilization and borrower expenses. We update our analysis of estimated medallion valuations on a quarterly basis, based on these cash flow capacity estimates. At September 30, 2017, our estimate of the value of New York City taxi medallions based on our cash flow template and consideration of estimated selling costs and declining trends in medallion values was $351,000 for both corporate and individual medallions. We used this value for purposes of determining the partial charge-offs and the value of repossessed medallions. See Note 10 to the consolidated financial statements for additional information about the valuation of New York City taxi medallions.

The taxi medallion portfolio had the following characteristics at September 30, 2017:

• Approximately 97% of the portfolio secured directly by taxi medallions was concentrated in New York City.

• Loans delinquent by 30 days or more totaled $13.2 million or 11.0% of the portfolio, compared to $40.8 million or 22.8% of the portfolio at December 31, 2016. Loans delinquent by 90 days or more totaled $10.4 million or 8.7% of the portfolio, compared to $29.2 million or 16.4% of the portfolio at December 31, 2016. The most significant factor contributing to the decrease in delinquencies was one large relationship that was brought current and restructured in the first quarter.

• The portfolio included 173 loans modified in TDRs with a recorded investment of $92.4 million.

• In the aggregate, the ALLL related to taxi medallion loans was 10.9% of the outstanding balance at September 30, 2017, compared to 6.0% at December 31, 2016. Charge-offs of $35.3 million and $47.1 million were recognized in the three and nine months ended September 30, 2017 related to taxi medallion loans.

We are no longer originating new taxi medallion loans. Our portfolio management strategies include, but are not limited to, working with borrowers experiencing cash flow challenges to provide short term relief and/or extended amortization periods, pro-actively attempting to refinance loans prior to maturity, continuing to monitor industry data and obtaining updated borrower and guarantor financial information. As taxi medallion loans approach maturity or are refinanced, we expect the number and amount of TDRs in this portfolio segment to continue to increase.

Hurricane Impact - Commercial Loans

Commercial loans totaling $1.9 million and $19.4 million had been modified or granted temporary payment deferrals as of September 30, 2017 and October 31, 2017, respectively, related to the recent hurricanes. Of these modifications and deferrals, none were determined to be TDRs due to the generally insignificant nature of the payment delays.

As of September 30 and October 31, 2017, respectively, commercial loans to borrowers that have significant business operations in or are secured by collateral in areas impacted by Hurricanes Irma and Harvey totaling approximately $4.7 million and $21.3 million were more than 30 days past due; $3.7 million of these loans were more than 30 days past due prior to the storms. Approximately $22.2 million of commercial loans have been downgraded to criticized or classified status through October 31, 2017 as a result of the impact of the storms.

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Equipment Under Operating Lease

Four operating lease relationships with assets under lease with a carrying value totaling $81 million, of which $75 million were exposures to the energy industry, were internally risk rated special mention or substandard at September 30, 2017. The present value of remaining lease payments on these leases totaled approximately $22 million at September 30, 2017, of which $17 million were exposures to the energy industry. There have been no missed payments related to the operating lease portfolio to date. One relationship has been restructured to date, with no decrease in total minimum lease payments.

The primary risks inherent in the equipment leasing business are asset risk resulting from ownership of the equipment on operating lease and credit risk. Asset risk arises from fluctuations in supply and demand for the underlying leased equipment. Railcars are long-lived equipment with useful lives of approximately 35-50 years. The equipment is leased to commercial end-users with original lease terms generally ranging from 3-9 years at September 30, 2017. We are exposed to the risk that, at the end of the lease term, the value of the asset will be lower than expected, potentially resulting in reduced future lease income over the remaining life of the asset or a lower sale value. Asset risk may also lead to changes in depreciation as a result of changes in the residual values of the operating lease assets or through impairment of asset carrying values.

Asset risk is evaluated and managed by a dedicated internal staff of asset managers, managed by seasoned equipment finance professionals with a broad depth and breadth of experience in the leasing business. Additionally, we have partnered with an industry leading, experienced service provider who provides fleet management and servicing, including lease administration and reporting, a Regulation Y compliant full service maintenance program and railcar re-marketing. Risk is managed by setting appropriate residual values at inception and systematic reviews of residual values based on independent appraisals, performed at least annually. Additionally, our internal management team and our external service provider closely follow the rail markets, monitoring traffic flows, supply and demand trends and the impact of new technologies and regulatory requirements. Demand for railcars is sensitive to shifts in general and industry specific economic and market trends and shifts in trade flows from specific events such as natural or man-made disasters. We seek to mitigate these risks by leasing to a stable end-user base, by maintaining a relatively young and diversified fleet of assets that are expected to maintain stronger and more stable utilization rates despite impacts from unexpected events or cyclical trends and by staggering lease maturities. We regularly monitor the impact of lower oil prices on the estimated residual value of rail cars being used in the petroleum/natural gas extraction sector.

Credit risk in the leased equipment portfolio results from the potential default of lessees, possibly driven by obligor specific or industry-wide conditions, and is economically less significant than asset risk, because in the operating lease business, there is no extension of credit to the obligor. Instead, the lessor deploys a portion of the useful life of the asset. Credit losses, if any, will manifest through reduced rental income due to missed payments, time off lease, or lower rental payments due either to a restructuring or re-leasing of the asset to another obligor. Credit risk in the operating lease portfolio is managed and monitored utilizing credit administration infrastructure, processes and procedures similar to those used to manage and monitor credit risk in the commercial loan portfolio. We also mitigate credit risk in this portfolio by leasing only to high credit quality obligors.

We expect our operating lease portfolio to continue to grow, and we may expand into other asset classes.

Based on our initial analysis of the location and condition of equipment under operating lease, we do not currently believe there has been any significant damage to such equipment or to the ongoing operations of lessees from Hurricanes Irma and Harvey.

Residential and Other Consumer Loans

The majority of our non-covered residential mortgage portfolio consists of loans purchased through established correspondent channels. In general, we purchase performing jumbo mortgage loans which have FICO scores above 700, primarily are owner-occupied and full documentation, and have a current LTV of 80% or less although loans with LTVs higher than 80% may be extended to selected credit-worthy borrowers. We perform due diligence on the purchased loans for credit, compliance, counterparty, payment history and property valuation.

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The following tables show the distribution of non-covered 1-4 single family residential loans by original FICO and LTV as of the dates indicated:

	September 30, 2017
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	2.4	%	2.8	%	4.6	%	20.4	%	30.2	%
60% - 70%	2.3	%	2.6	%	3.5	%	14.6	%	23.0	%
70% - 80%	3.5	%	4.4	%	7.9	%	27.2	%	43.0	%
More than 80%	0.6	%	0.5	%	0.6	%	2.1	%	3.8	%
	8.8	%	10.3	%	16.6	%	64.3	%	100.0	%

	December 31, 2016
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	2.5	%	3.2	%	4.7	%	21.7	%	32.1	%
60% - 70%	2.3	%	2.7	%	3.6	%	15.1	%	23.7	%
70% - 80%	3.2	%	4.3	%	8.0	%	26.1	%	41.6	%
More than 80%	0.7	%	0.3	%	0.4	%	1.2	%	2.6	%
	8.7	%	10.5	%	16.7	%	64.1	%	100.0	%

At September 30, 2017, the non-covered 1-4 single family residential loan portfolio had the following characteristics: substantially all were full documentation with a weighted-average FICO score of 765 and a weighted-average LTV of 66.6%. The majority of this portfolio was owner-occupied, with 87.9% primary residence, 8.3% second homes and 3.8% investment properties. In terms of vintage, 22.2% of the portfolio was originated pre-2014, 13.1% in 2014, 22.2% in 2015, 26.0% in 2016 and 16.5% in 2017.

Non-covered 1-4 single family residential loans past due more than 30 days totaled $17.1 million and $12.7 million at September 30, 2017 and December 31, 2016, respectively. The amount of these loans 90 days or more past due was $2.7 million and $2.1 million at September 30, 2017 and December 31, 2016, respectively.

Hurricane Impact- Residential loans

The following table presents information related to 1-4 single family residential mortgages with borrowers and/or collateral located in areas impacted by Hurricanes Irma and Harvey, at the dates indicated (in thousands):

	September 30, 2017		October 31, 2017
Past due more than 30 days:
Covered loans	$	14,669	$	13,454
Total	$	20,099	$	21,350
Granted temporary payment deferrals:
Covered loans	$	14,807	$	16,983
Total	$	24,772	$	25,969

Other Consumer Loans

Substantially all consumer loans were current at September 30, 2017. At December 31, 2016, there were no delinquent consumer loans.

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Covered Loans

At September 30, 2017, residential ACI loans totaled $476 million and residential non-ACI loans totaled $62 million, including premiums, discounts and deferred fees and costs. All of these loans are covered under the Single Family Shared-Loss Agreement.

Covered residential loans were placed into homogenous pools at the time of the FSB Acquisition and the ongoing credit quality and performance of these loans is monitored on a pool basis. We monitor the pools quarterly to determine whether any changes have occurred in expected cash flows that would be indicative of impairment or necessitate reclassification between non-accretable difference and accretable yield. At September 30, 2017, accretable yield on residential ACI loans totaled $511 million and non-accretable difference related to those loans totaled $227 million.

At September 30, 2017, the recorded investment in non-ACI 1-4 single family residential loans was $24.6 million; $1.6 million or 6.6% of these loans were 30 days or more past due and $0.9 million or 3.8% of these loans were 90 days or more past due. At September 30, 2017, the recorded investment in ACI 1-4 single family residential loans totaled $470.3 million; $34.2 million or 7.3% of these loans were delinquent by 30 days or more and $17.6 million or 3.7% were delinquent by 90 days or more.

At September 30, 2017, non-ACI home equity loans and lines of credit had an aggregate recorded investment of $37.4 million; $4.1 million or 11.1% of these loans were 30 days or more past due and $2.4 million or 6.3% were 90 days or more past due. ACI home equity loans and lines of credit had a carrying amount of $5.6 million at September 30, 2017; 13.5% of these loans were delinquent by 30 days or more.

Home equity lines of credit generally provide that payment terms be reset after an initial contractual period of interest only payments, requiring the pay down of principal through balloon payments or amortization. Additional information regarding ACI and non-ACI home equity lines of credit at September 30, 2017 is summarized as follows:

	ACI		Non-ACI
Loans resetting from interest only:
Previously reset	72.3	%	51.5	%
Scheduled to reset within 12 months	2.5	%	5.5	%
Scheduled to reset after 12 months	25.2	%	43.0	%
	100.0	%	100.0	%
Lien position:
First liens	10.3	%	18.8	%
Second or third liens	89.7	%	81.2	%
	100.0	%	100.0	%

The Company's exposure to loss related to covered loans is significantly mitigated by the Single Family Shared-Loss Agreement and by the fair value basis recorded in these assets resulting from the application of acquisition accounting. Management regularly evaluates the impact of resets of interest only loans on default rates for the covered home equity portfolio.

Impaired Loans and Non-Performing Assets

Non-performing assets generally consist of (i) non-accrual loans, including loans that have been modified in TDRs and placed on non-accrual status, (ii) accruing loans that are more than 90 days contractually past due as to interest or principal, excluding ACI loans, and (iii) OREO and repossessed assets. Impaired loans also typically include loans modified in TDRs that are accruing and ACI loans or pools for which expected cash flows at acquisition (as adjusted for any additional cash flows expected to be collected arising from changes in estimates after acquisition) have been revised downward since acquisition, other than due to changes in interest rate indices and prepayment assumptions.

The following tables summarize the Company's impaired loans and non-performing assets at the dates indicated (dollars in thousands):

	September 30, 2017								December 31, 2016
	Covered Assets		Non-Covered Assets			Total			Covered Assets		Non-Covered Assets			Total
Non-accrual loans
Residential and other consumer:
1 - 4 single family residential	$	934	$	1,890		$	2,824		$	918	$	566		$	1,484
Home equity loans and lines of credit	2,369		—			2,369			2,283		—			2,283
Other consumer loans	—		332			332			—		2			2
Total residential and other consumer loans	3,303		2,222			5,525			3,201		568			3,769
Commercial:
Non-owner occupied commercial real estate	—		9,930			9,930			—		559			559
Construction and land	—		1,238			1,238			—		1,238			1,238
Owner occupied commercial real estate	—		21,455			21,455			—		19,439			19,439
Commercial and industrial
Taxi medallion loans	—		120,572			120,572			—		60,660			60,660
Other commercial and industrial	—		27,569			27,569			—		16,036			16,036
Commercial lending subsidiaries	—		16,625			16,625			—		32,645			32,645
Total commercial loans	—		197,389			197,389			—		130,577			130,577
Total non-accrual loans	3,303		199,611			202,914			3,201		131,145			134,346
Non-ACI and new loans past due 90 days and still accruing	—		846			846			—		1,551			1,551
Total non-performing loans	3,303		200,457			203,760			3,201		132,696			135,897
OREO	4,114		1,661			5,775			4,658		4,882			9,540
Repossessed assets	—		2,457			2,457			—		3,551			3,551
Total non-performing assets	7,417		204,575			211,992			7,859		141,129			148,988
Impaired ACI loans and pools on accrual status	5,640		—			5,640			—		1,335			1,335
Performing TDRs
Taxi medallion loans	—		—			—			—		36,848			36,848
Other	10,786		19,365			30,151			11,166		26,282			37,448
Total impaired loans and non-performing assets	$	23,843	$	223,940		$	247,783		$	19,025	$	205,594		$	224,619
Non-performing loans to total loans (1) (3)			1.00		%	0.99		%			0.71		%	0.70		%
Non-performing assets to total assets (2)			0.69		%	0.72		%			0.51		%	0.53		%
ALLL to total loans (1)			0.77		%	0.77		%			0.80		%	0.79		%
ALLL to non-performing loans			76.69		%	77.82		%			113.68		%	112.55		%
Net charge-offs to average loans  (4) (5)			0.40		%	0.39		%			0.13		%	0.13		%

(1) Total loans for purposes of calculating these ratios include premiums, discounts and deferred fees and costs.

(2) Ratio for non-covered assets is calculated as non-performing non-covered assets to total assets.

(3) Non-performing taxi medallion loans comprised 0.60% and 0.32% of total non-covered loans at September 30, 2017 and December 31, 2016, respectively.

(4) Annualized for September 30, 2017.

(5) The annualized ratio of charge-offs of taxi medallion loans to average non-covered loans was 0.33% and 0.06% for the nine months ended September 30, 2017 and the year ended December 31, 2016.

The increases in the non-performing loans to total loans and non-performing assets to total assets ratios at September 30, 2017 compared to December 31, 2016 were primarily attributable to the increase in non-accrual taxi medallion loans. The decrease in the ALLL to non-performing loans ratio at September 30, 2017 compared to December 31, 2016 was primarily attributable to increased charge-offs of taxi medallion loans during the three months ended September 30, 2017.

Contractually delinquent ACI loans with remaining accretable yield are not reflected as non-accrual loans and are not considered to be non-performing assets because accretion continues to be recorded in income. Accretion continues to be recorded as long as there is an expectation of future cash flows in excess of carrying amount from these loans. The carrying value of ACI loans contractually delinquent by more than 90 days but on which income was still being recognized was $18 million and $16 million at September 30, 2017 and December 31, 2016, respectively.

New commercial loans are placed on non-accrual status when (i) management has determined that full repayment of all contractual principal and interest is in doubt, or (ii) the loan is past due 90 days or more as to principal or interest unless the loan is well secured and in the process of collection. New and non-ACI residential and consumer loans are generally placed on non-accrual status when 90 days of interest is due and unpaid. When a loan is placed on non-accrual status, uncollected interest accrued is reversed and charged to interest income. Commercial loans are returned to accrual status only after all past due principal and interest has been collected and full repayment of remaining contractual principal and interest is reasonably assured. Residential loans are generally returned to accrual status when less than 90 days of interest is due and unpaid. Past due status of loans is determined based on the contractual next payment due date. Loans less than 30 days past due are reported as current.

A loan modification is considered a TDR if 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 grant. These concessions may take the form of temporarily or permanently reduced interest rates, payment abatement periods, restructuring of payment terms, extensions of maturity at below market terms, or in some cases, partial forgiveness of principal. Under GAAP, modified ACI loans accounted for in pools are not accounted for as TDRs and are not separated from their respective pools when modified. Included in TDRs are residential loans to borrowers who have not reaffirmed their debt discharged in Chapter 7 bankruptcy.

The following table summarizes loans modified in TDRs at September 30, 2017 (dollars in thousands):

	Number of TDRs	Recorded Investment		Related Specific Allowance
Residential and other consumer:
Covered	59	$	11,721	$	1,024
Non-covered	9	912		71
Commercial:
Taxi medallion loans	173	92,370		10,505
Other	30	72,702		10,581
	271	$	177,705	$	22,181

Potential Problem Loans

Potential problem loans have been identified by management as those commercial loans included in the "substandard accruing" risk rating category. These loans are typically performing, but possess specifically identified credit weaknesses that, if not remedied, may lead to a downgrade to non-accrual status and identification as impaired in the near-term. Substandard accruing commercial loans totaled $185 million at September 30, 2017, substantially all of which were current as to principal and interest at September 30, 2017.

Loss Mitigation Strategies

Criticized or classified commercial loans in excess of certain thresholds are reviewed quarterly by the Criticized Asset Committee, which determines the appropriate strategy for collection to mitigate the amount of credit losses. Criticized asset reports for each relationship are presented by the assigned relationship manager and credit officer to the Criticized Asset Committee until such time as the relationships are returned to a satisfactory credit risk rating or otherwise resolved. The Criticized Asset Committee may require the transfer of a loan to our workout and recovery department, which is tasked to effectively manage the loan with the goal of minimizing losses and expenses associated with restructure, collection and/or liquidation of collateral. Commercial loans with a risk rating of substandard; impaired loans on non-accrual status; loans modified as TDRs; taxi medallion loans; or assets classified as OREO or repossessed assets are usually transferred to workout and recovery. Oversight of the workout and recovery department is provided by the Asset Recovery Committee.

We evaluate each residential loan in default to determine the most effective loss mitigation strategy, which may be modification, short sale, or foreclosure. Through the program's expiration on December 31, 2016, we offered loan modifications under the HAMP program to eligible borrowers in the residential portfolio. HAMP is a uniform loan modification process that provides eligible borrowers with sustainable monthly mortgage payments equal to a target 31% of their gross monthly income. We began offering a new modification program in late 2016 modeled after the FNMA standard modification program.

In addition to the modification programs discussed above, we offer a proprietary Subordinate Lien Modification Program for home equity loans and lines of credit. This provides BankUnited the ability to offer a modification on loans covered under the Single Family Shared-Loss Agreement that are subordinate to either a BankUnited first lien or a first lien from another lender.

Analysis of the Allowance for Loan and Lease Losses

The ALLL relates to (i) new loans, (ii) estimated additional losses arising on non-ACI loans subsequent to the FSB Acquisition, and (iii) impairment recognized as a result of decreases in expected cash flows on ACI loans due to further credit deterioration. The impact of any additional provision for losses on covered loans is significantly mitigated by an increase in the FDIC indemnification asset. The determination of the amount of the ALLL is, by nature, highly complex and subjective. Future events that are inherently uncertain could result in material changes to the level of the ALLL. General economic conditions including but not limited to unemployment rates, the level of business investment and growth, real estate values, vacancy rates and rental rates in our primary market areas, the level of interest rates, and a variety of other factors that affect the ability of borrowers’ businesses to generate cash flows sufficient to service their debts will impact the future performance of the portfolio. 

New and non-ACILoans

Residential and other consumer

Due to the lack of similarity between the risk characteristics of new loans and covered loans in the residential and home equity portfolios, management does not believe it is appropriate to use the historical performance of the covered residential mortgage portfolio as a basis for calculating the ALLL applicable to new loans. The new loan portfolio has not yet developed an observable loss trend. Therefore, the ALLL for new residential loans is based primarily on relevant proxy historical loss rates. The ALLL for new 1-4 single family residential loans is estimated using average annual loss rates on prime residential mortgage securitizations issued between 2003 and 2008 as a proxy. Based on the comparability of FICO scores and LTV ratios between loans included in those securitizations and loans in the Bank’s portfolio and the geographic diversity in the new purchased residential portfolio, we determined that prime residential mortgage securitizations provide an appropriate proxy for incurred losses in this portfolio class. A peer group 16-quarter average net charge-off rate is used to estimate the ALLL for the new home equity and other consumer loan classes. See further discussion of the use of peer group loss factors below. The new home equity and other consumer loan portfolios are not significant components of the overall loan portfolio.

Based on an analysis of historical performance, OREO and short sale losses, recent trending data and other internal and external factors, we have concluded that historical performance by portfolio class is the best indicator of incurred loss for the non-ACI 1-4 single family residential and home equity portfolio classes. For each of these portfolio classes, a quarterly roll rate matrix is calculated by delinquency bucket to measure the rate at which loans move from one delinquency bucket to the next during a given quarter. An average 16-quarter roll rate matrix is used to estimate the amount within each delinquency bucket expected to roll to 120+ days delinquent. We assume no cure for those loans that are currently 120+ days delinquent. Loss severity given default is estimated based on internal data about OREO sales and short sales from the portfolio. The ALLL calculation incorporates a 100% loss severity assumption for home equity loans that are projected to roll to default. For non-ACI residential loans, the allowance is initially calculated based on UPB. The total of UPB less the calculated allowance is then compared to the carrying amount of the loans, net of unamortized credit related fair value adjustments established at acquisition. If the calculated balance net of the allowance is less than the carrying amount, an additional allowance is established. Any increase or decrease in the allowance for non-ACI residential loans will result in a corresponding increase or decrease in the FDIC indemnification asset. 

Commercial

The allowance is comprised of specific reserves for loans that are individually evaluated and determined to be impaired as well as general reserves for loans that have not been identified as impaired.

Commercial relationships graded substandard or doubtful and on non-accrual status with committed credit facilities greater than or equal to $1.0 million as well as loans modified in TDRs are individually evaluated for impairment. Other commercial

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relationships on non-accrual status with committed balances under $1.0 million may also be evaluated for impairment, at management's discretion. For loans evaluated individually for impairment and determined to be impaired, a specific allowance is established based on the present value of expected cash flows discounted at the loan’s effective interest rate, the estimated fair value of the loan, or the estimated fair value of collateral less costs to sell. We recognized partial charge-offs at September 30, 2017 on taxi medallion loans all of which are risk-rated substandard and on non-accrual status, as necessary to reduce the carrying value of the loans to our estimate of the value of New York City taxi medallions based on our cash flow template. Additionally, a specific allowance was recognized equal to the amount by which each loan exceeded 85% of the estimated value, in recognition of the continued declining trend in cash flows and lower prices observed on certain recent taxi medallion transfers. The amount of this specific allowance was determined based on management's judgment.

We believe that loans rated special mention, substandard or doubtful that are not individually evaluated for impairment exhibit characteristics indicative of a heightened level of credit risk. We apply a quantitative loss factor for loans rated special mention based on average annual probability of default and implied severity, derived from internal and external data. Loss factors for substandard and doubtful loans that are not individually evaluated are determined by using default frequency and severity information applied at the loan level. Estimated default frequencies and severities are based on available industry data. In addition, we apply a floor to these calculated loss factors, based on the loss factor applied to the special mention portfolio.

Since the majority of the new commercial loan portfolio is not yet seasoned enough to exhibit a loss trend, the quantitative loss factors for a majority of pass rated new commercial loans is based on peer group average annual historical net charge-off rates by loan class and the Company’s internal credit risk rating system. Beginning in the first quarter of 2017, we revised the source of quantitative loss factors for certain loans, as follows:

• Given the emergence of observable loss trends, the quantitative loss factors for the taxi medallion and Bridge portfolios are based on the Company’s average historical net charge-off rates. Beginning in the third quarter of 2017, all taxi medallion loans are individually evaluated for impairment as described above.

• The general quantitative loss factor for municipal finance receivables is based on the portfolio's external ratings and Moody's historical transition matrix, as opposed to the historical cumulative default curve for municipal obligations that was used previously.

• For loans that are partially guaranteed by the SBA, the loss factor applied to the non-guaranteed portion of these loans is based on the 16-quarter average charge-off rate published by the SBA for each program

• Mortgage warehouse loans have been segregated for the purpose of determining a quantitative loss factor, to better recognize the risk profile of this portfolio segment.

The net impact of these changes on the ALLL was not material.

The peer group used to calculate the average annual historical net charge-off rates that form the basis for our general reserve calculations for the majority of new commercial, home equity and consumer loans is made up of the banks included in the OCC Midsize Bank Group plus two additional banks in the New York region that management believes to be comparable based on size and nature of lending operations. The OCC Midsize Bank Group primarily includes commercial banks with total assets ranging from $10 - $50 billion and included 28 banks at September 30, 2017. Peer bank data is obtained from the Statistics on Depository Institutions Report published by the FDIC for the most recent quarter available. These banks, as a group, are considered by management to be comparable to BankUnited in size, nature of lending operations and loan portfolio composition. We evaluate the composition of the peer group annually, or more frequently if, in our judgment, a more frequent evaluation is necessary. Our internal risk rating system comprises 13 credit grades; grades 1 through 8 are “pass” grades. The risk ratings are driven largely by debt service coverage. Peer group historical loss rates are adjusted upward for loans assigned a lower “pass” rating.

We use a 16-quarter loss experience period to calculate peer group average annual net charge-off rates for commercial loans. We believe this look-back period to be consistent with the range of industry practice and appropriate to capture a sufficient range of observations reflecting the performance of our loans, most of which were originated in the current economic cycle. Prior to the third quarter of 2017, we used a four-quarter loss experience period for the taxi medallion portfolio to recognize the recent deterioration in that portfolio. We use a 14-quarter loss experience period for the Bridge portfolios, reflective of the period over which an observable loss trend began to emerge.

With the exception of the Pinnacle municipal finance portfolio, a four quarter loss emergence period is used in the calculation of general reserves. A twelve quarter loss emergence period is used in the calculation of general reserves for the Pinnacle portfolio.

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Qualitative Factors

Qualitative adjustments are made to the ALLL when, based on management’s judgment, there are internal or external factors impacting probable incurred losses not taken into account by the quantitative calculations. Potential qualitative adjustments are categorized as follows: 

• Portfolio performance trends, including trends in and the levels of delinquencies, non-performing loans and classified loans;  

• Changes in the nature of the portfolio and terms of the loans, specifically including the volume and nature of policy and procedural exceptions;

• Portfolio growth trends;  

• Changes in lending policies and procedures, including credit and underwriting guidelines;  

• Economic factors, including unemployment rates and GDP growth rates;

• Changes in the value of underlying collateral;

• Quality of risk ratings, as evaluated by our independent credit review function;  

• Credit concentrations;  

• Changes in and experience levels of credit administration management and staff; and

• Other factors identified by management that may impact the level of losses inherent in the portfolio, including but not limited to competition and legal and regulatory considerations.

ACILoans

For ACI loans, a valuation allowance is established when periodic evaluations of expected cash flows reflect a deterioration resulting from credit related factors from the level of cash flows that were estimated to be collected at acquisition plus any additional expected cash flows arising from revisions in those estimates. We perform a quarterly analysis of expected cash flows for ACI loans.

Expected cash flows are estimated on a pool basis for ACI 1-4 single family residential and home equity loans. The analysis of expected pool cash flows incorporates updated pool level expected prepayment rate, default rate, delinquency level and loss severity given default assumptions. Prepayment, delinquency and default curves are derived primarily from roll rates generated from the historical performance of the portfolio over the immediately preceding four quarters. Loss severity given default assumptions are generated from the historical performance of the portfolio over the immediately preceding four quarters, while loss severity from loan sales is generated from historical performance over the immediately preceding twelve quarters. Estimates of default probability and loss severity given default also incorporate updated LTV ratios, at the loan level, based on Case-Shiller Home Price Indices for the relevant MSA. Costs and fees represent an additional component of loss on default and are projected based on historical experience over the last three years. The ACI home equity roll rates include the impact of delinquent, related senior liens and loans to borrowers who have not reaffirmed their debt discharged in Chapter 7 bankruptcy. 

Our projected cash flow analysis reflected a decrease in expected cash flows due to credit related factors for the home equity ACI pool; therefore, a provision for loan losses of $1.8 million was recorded for the nine months ended September 30, 2017, along with a corresponding increase in the FDIC indemnification asset of $1.4 million. No ALLL related to 1-4 single family residential ACI pools was recorded at September 30, 2017. No ALLL related to 1-4 single family residential and home equity ACI pools was recorded at December 31, 2016.

The primary assumptions underlying estimates of expected cash flows for ACI commercial loans are default probability and severity of loss given default. Assessments of default probability and severity are based on net realizable value analyses prepared at the individual loan level. Based on our analysis, no ALLL related to ACI commercial loans was recorded at September 30, 2017 or December 31, 2016. 

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The following tables provide an analysis of the ALLL, provision for loan losses and net charge-offs for the periods indicated (in thousands):

	Nine Months Ended September 30, 2017
				Covered Loans
	Non-Covered Loans			ACI Loans		Non-ACI Loans			Total
Balance at December 31, 2016	$	150,853		$	—	$	2,100		$	152,953
Provision for (recovery of) loan losses:
1-4 single family residential	(4		)	—		212			208
Home equity loans and lines of credit	—			1,812		714			2,526
Other consumer loans	(48		)	—		—			(48		)
Multi-family	(3,303		)	—		—			(3,303		)
Non-owner occupied commercial real estate	4,032			—		—			4,032
Construction and land	(9		)	—		—			(9		)
Owner occupied commercial real estate	4,884			—		—			4,884
Commercial and industrial
Taxi medallion loans	49,604			—		—			49,604
Other commercial and industrial	9,338			—		(45		)	9,293
Commercial lending subsidiaries	(8,614		)	—		—			(8,614		)
Unallocated	5,000			—		—			5,000
Total Provision	60,880			1,812		881			63,573
Charge-offs:
Home equity loans and lines of credit	—			—		(55		)	(55		)
Non-owner occupied commercial real estate	(162		)	—		—			(162		)
Owner occupied commercial real estate	(1,164		)	—		—			(1,164		)
Commercial and industrial
Taxi medallion loans	(47,141		)	—		—			(47,141		)
Other commercial and industrial	(12,567		)	—		—			(12,567		)
Commercial lending subsidiaries	—			—		—			—
Total Charge-offs	(61,034		)	—		(55		)	(61,089		)
Recoveries:
Home equity loans and lines of credit	—			—		65			65
Other consumer loans	21			—		—			21
Owner occupied commercial real estate	2			—		—			2
Commercial and industrial
Other commercial and industrial	2,400			—		45			2,445
Commercial lending subsidiaries	603			—		—			603
Total Recoveries	3,026			—		110			3,136
Net Charge-offs:	(58,008		)	—		55			(57,953		)
Balance at September 30, 2017	$	153,725		$	1,812	$	3,036		$	158,573

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	Nine Months Ended September 30, 2016
				Covered Loans
	Non-Covered Loans			ACI Loans		Non-ACI Loans			Total
Balance at December 31, 2015	$	120,960		$	—	$	4,868		$	125,828
Provision for (recovery of) loan losses:
1-4 single family residential	(324		)	—		23			(301		)
Home equity loans and lines of credit	2			—		(1,097		)	(1,095		)
Other consumer loans	(98		)	—		—			(98		)
Multi-family	1,509			—		—			1,509
Non-owner occupied commercial real estate	7,563			—		—			7,563
Construction and land	(980		)	—		—			(980		)
Owner occupied commercial real estate	4,854			—		—			4,854
Commercial and industrial
Taxi medallion loans	9,679			—		—			9,679
Other commercial and industrial	16,686			—		(45		)	16,641
Commercial lending subsidiaries	4,677			—		—			4,677
Total Provision	43,568			—		(1,119		)	42,449
Charge-offs:
1-4 single family residential	—			—		(312		)	(312		)
Home equity loans and lines of credit	—			—		(774		)	(774		)
Non-owner occupied commercial real estate	(128		)	—		—			(128		)
Construction and land	(93		)	—		—			(93		)
Owner occupied commercial real estate	(2,615		)	—		—			(2,615		)
Commercial and industrial
Taxi medallion loans	(4,235		)	—		—			(4,235		)
Other commercial and industrial	(7,245		)	—		—			(7,245		)
Commercial lending subsidiaries	(1,432		)	—		—			(1,432		)
Total Charge-offs	(15,748		)	—		(1,086		)	(16,834		)
Recoveries:
Home equity loans and lines of credit	—			—		77			77
Other consumer loans	18			—		—			18
Owner occupied commercial real estate	1,175			—		—			1,175
Commercial and industrial
Other commercial and industrial	440			—		45			485
Commercial lending subsidiaries	1,278			—		—			1,278
Total Recoveries	2,911			—		122			3,033
Net Charge-offs:	(12,837		)	—		(964		)	(13,801		)
Balance at September 30, 2016	$	151,691		$	—	$	2,785		$	154,476

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The following tables show the distribution of the ALLL, broken out between covered and non-covered loans, at the dates indicated (dollars in thousands):

	September 30, 2017
			Covered Loans
	Non-Covered Loans		ACI Loans		Non-ACI Loans		Total		%(1)
Residential and other consumer:
1 - 4 single family residential	$	9,275	$	—	$	393	$	9,668	21.7	%
Home equity loans and lines of credit	7		1,812		2,643		4,462		0.2	%
Other consumer loans	90		—		—		90		0.1	%
	9,372		1,812		3,036		14,220		22.0	%
Commercial:
Multi-family	21,706		—		—		21,706		16.3	%
Non-owner occupied commercial real estate	39,474		—		—		39,474		20.4	%
Construction and land	2,815		—		—		2,815		1.3	%
Owner occupied commercial real estate	15,146		—		—		15,146		9.5	%
Commercial and industrial
Taxi medallion loans	13,117		—		—		13,117		0.8	%
Other commercial and industrial	37,239		—		—		37,239		18.2	%
Commercial lending subsidiaries	9,856		—		—		9,856		11.5	%
	139,353		—		—		139,353		78.0	%
Unallocated	5,000		—		—		5,000
	$	153,725	$	1,812	$	3,036	$	158,573	100.0	%

	December 31, 2016
			Covered Loans
	Non-Covered Loans		ACI Loans		Non-ACI Loans		Total		%(1)
Residential and other consumer:
1 - 4 single family residential	$	9,279	$	—	$	181	$	9,460	20.6	%
Home equity loans and lines of credit	7		—		1,919		1,926		0.3	%
Other consumer loans	117		—		—		117		0.1	%
	9,403		—		2,100		11,503		21.0	%
Commercial:
Multi-family	25,009		—		—		25,009		19.8	%
Non-owner occupied commercial real estate	35,604		—		—		35,604		19.3	%
Construction and land	2,824		—		—		2,824		1.6	%
Owner occupied commercial real estate	11,424		—		—		11,424		9.0	%
Commercial and industrial
Taxi medallion loans	10,655		—		—		10,655		0.9	%
Other commercial and industrial	38,067		—		—		38,067		16.6	%
Commercial lending subsidiaries	17,867		—		—		17,867		11.8	%
	141,450		—		—		141,450		79.0	%
	$	150,853	$	—	$	2,100	$	152,953	100.0	%

(1) Represents percentage of loans receivable in each category to total loans receivable.

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The ALLL at September 30, 2017 included $5.4 million related to the impact of Hurricanes Irma and Harvey. The ALLL includes $0.4 million related to loans that were downgraded during the three months ended September 30, 2017 as a result of the hurricanes and a $5.0 million unallocated qualitative allowance.

Excluding the $5.0 million unallocated qualitative allowance relative to the impact of the hurricanes, the balance of the ALLL for non-covered loans at September 30, 2017 decreased slightly as compared to December 31, 2016. Decreases in quantitative loss factors applied to the majority of the commercial loan portfolio and net decreases in qualitative factors were substantially offset by the impact of the growth of the loan portfolio and an increase in reserves for criticized and classified loans, including taxi medallion loans. Factors influencing the change in the ALLL related to specific loan types at September 30, 2017 as compared to December 31, 2016, include:

• The ALLL related to non-covered 1-4 single family residential loans did not change significantly. Increases related to growth in the corresponding portfolio were substantially offset by declines in both the applicable quantitative historical loss rate and qualitative reserves.

• A decrease of $3.3 million for multi-family loans primarily reflects decreases in quantitative loss factors, the decline in the corresponding portfolio and a net decrease in qualitative loss factors, offset in part by an increase in criticized and classified loans.

• An increase of $3.9 million for non-owner occupied commercial real estate loans was primarily driven by the growth of the corresponding portfolio and an increase in criticized and classified loans, partially offset by a decrease in quantitative loss factors.

• An increase of $3.7 million for owner occupied commercial real estate loans was primarily attributable to increases in specific reserves for impaired loans and to a lesser extent, the growth of the corresponding portfolio.

• An increase of $2.5 million for taxi medallion loans reflects the specific reserves recognized at September 30, 2017, as discussed previously. Increases in reserves were limited due to the level of charge-offs recognized during the nine months ended September 30, 2017.

• A decrease of $0.8 million for other commercial and industrial loans was primarily driven by a decrease in reserves for impaired and other classified loans, primarily due to net charge-offs, offset by growth in the corresponding portfolio.

• A $8.0 million decrease for commercial lending subsidiaries primarily reflects decreases in quantitative loss factors for the municipal finance receivables and decreases in qualitative loss factors related to portfolio growth trends and credit concentrations.

For additional information about the ALLL, see Note 4 to the consolidated financial statements.

Deposits

Average balances and rates paid on deposits were as follows for the periods indicated (dollars in thousands):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2017				2016				2017				2016
	Average Balance		Average Rate Paid		Average Balance		Average Rate Paid		Average Balance		Average Rate Paid		Average Balance		Average Rate Paid
Demand deposits:
Non-interest bearing	$	3,036,046	—	%	$	2,981,017	—	%	$	3,034,682	—	%	$	2,944,861	—	%
Interest bearing	1,590,206		0.85	%	1,437,677		0.62	%	1,564,229		0.76	%	1,341,218		0.61	%
Money market	9,590,333		0.90	%	7,948,299		0.64	%	9,187,225		0.80	%	7,778,761		0.63	%
Savings	378,179		0.24	%	400,982		0.22	%	370,682		0.19	%	424,915		0.24	%
Time	6,290,056		1.30	%	5,567,909		1.13	%	5,988,433		1.24	%	5,177,191		1.11	%
	$	20,884,820	0.87	%	$	18,335,884	0.67	%	$	20,145,251	0.80	%	$	17,666,946	0.65	%

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Total deposits at September 30, 2017 and December 31, 2016 included $2.3 billion and $1.9 billion, respectively, of brokered deposits.

The following table shows scheduled maturities of certificates of deposit with denominations greater than or equal to $100,000 as of September 30, 2017 (in thousands):

Three months or less	$	741,235
Over three through six months	1,037,771
Over six through twelve months	1,351,330
Over twelve months	931,302
	$	4,061,638

FHLB Advances, Notes and Other Borrowings

In addition to deposits, we utilize FHLB advances to fund growth in interest earning assets; the advances provide us with additional flexibility in managing both term and cost of funding. FHLB advances are secured by FHLB stock, qualifying residential first mortgage, commercial real estate and home equity loans, and MBS. At September 30, 2017 and December 31, 2016, outstanding FHLB advances totaled $4.9 billion and $5.2 billion, respectively.

The contractual balance of FHLB advances outstanding at September 30, 2017 is scheduled to mature as follows (in thousands):

Maturing in:
2017—One month or less	$	2,395,000
2017—Over one month	855,000
2018	1,396,000
2019	100,000
2020	125,000
Carrying value	$	4,871,000

The table above reflects contractual maturities of outstanding advances, and does not incorporate the impact that interest rate swaps designated as cash flow hedges have on the duration of borrowings. See Note 7 to the consolidated financial statements for more information about derivative instruments.

Outstanding senior notes payable and other borrowings consisted of the following at the dates indicated (in thousands):

	September 30, 2017		December 31, 2016
Senior notes	$	393,564	$	393,092
Capital lease obligations	9,264		9,717
	$	402,828	$	402,809

Senior notes have a face amount of $400 million, a fixed coupon rate of 4.875% and mature on November 17, 2025.

Capital Resources

Pursuant to the FDIA, the federal banking agencies have adopted regulations setting forth a five-tier system for measuring the capital adequacy of the financial institutions they supervise. At September 30, 2017 and December 31, 2016, BankUnited and the Company had capital levels that exceeded both the regulatory well-capitalized guidelines and all internal capital ratio targets.

Stockholders' equity increased to $2.6 billion at September 30, 2017, an increase of $205 million, or 8.5%, from December 31, 2016, due primarily to the retention of earnings and the exercise of stock options resulting in proceeds of $61.5 million during the period.

Since our formation, stockholders' equity has been impacted primarily by the retention of earnings, and to a lesser extent, proceeds from the issuance of common shares and changes in unrealized gains and losses, net of taxes, on investment securities

76

available for sale and cash flow hedges. Our rate of earnings retention is derived by dividing undistributed earnings per common share by earnings per common share. Our retention ratio was 66.0% and 64.9% for the three and nine months ended September 30, 2017, respectively, compared to 55.7% and 58.4%for the three and nine months ended September 30, 2016, respectively. We retain a high percentage of our earnings to support our planned growth.

We filed a shelf registration statement with the SEC in October 2015 that allows the Company to periodically offer and sell in one or more offerings, individually or in any combination, our common stock, preferred stock and other non-equity securities. The shelf registration provides us with flexibility in issuing capital instruments and enables us to more readily access the capital markets as needed to pursue future growth opportunities and to ensure continued compliance with regulatory capital requirements. Our ability to issue securities pursuant to the shelf registration is subject to market conditions.

The following table provides information regarding regulatory capital for the Company and the Bank as of September 30, 2017 (dollars in thousands):

	Actual				Required to be Considered Well Capitalized				Required to be Considered Adequately Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
BankUnited, Inc.:
Tier 1 leverage	$	2,491,853	8.56	%	N/A (1)		N/A (1)		$	1,164,462	4.00	%
CET1 risk-based capital	$	2,491,853	11.91	%	$	1,359,799	6.50	%	$	941,399	4.50	%
Tier 1 risk-based capital	$	2,491,853	11.91	%	$	1,673,599	8.00	%	$	1,255,199	6.00	%
Total risk based capital	$	2,657,784	12.70	%	$	2,091,998	10.00	%	$	1,673,599	8.00	%
BankUnited:
Tier 1 leverage	$	2,706,006	9.32	%	$	1,451,814	5.00	%	$	1,161,451	4.00	%
CET1 risk-based capital	$	2,706,006	12.98	%	$	1,354,884	6.50	%	$	937,997	4.50	%
Tier 1 risk-based capital	$	2,706,006	12.98	%	$	1,667,550	8.00	%	$	1,250,662	6.00	%
Total risk based capital	$	2,869,850	13.77	%	$	2,084,437	10.00	%	$	1,667,550	8.00	%

(1) There is no Tier 1 leverage ratio component in the definition of a well-capitalized bank holding company.

Levels of capital required to be well capitalized or adequately capitalized as reflected above do not include a capital conservation buffer that is being phased in beginning in 2016. When fully phased in on January 1, 2019, the Bank and the Company will have to maintain this capital conservation buffer composed of CET1 capital equal to 2.50% of risk-weighted assets above the amounts required to be adequately capitalized, as reflected above, in order to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers. Capital ratios required to be considered well-capitalized exceed the ratios required under the capital conservation buffer requirement at September 30, 2017.

Liquidity

Liquidity involves our ability to generate adequate funds to support planned interest earning asset growth, meet deposit withdrawal requests, maintain reserve requirements, conduct routine operations, pay dividends, service outstanding debt and meet other contractual obligations.

Primary sources of liquidity include cash flows from operations, cash generated by the repayment and resolution of covered loans, cash payments received from the FDIC pursuant to the Single Family Shared-Loss Agreement, deposit growth, the available for sale securities portfolio and FHLB advances.

For the nine months ended September 30, 2017 and 2016, net cash provided by operating activities was $231.2 million and $227.3 million, respectively. Accretion on ACI loans, which is reflected as a non-cash reduction in net income to arrive at operating cash flows, totaled $226.3 million, and $228.5 million for the nine months ended September 30, 2017 and 2016, respectively. Accretable yield on ACI loans represents the excess of expected future cash flows over the carrying amount of the loans, and is recognized as interest income over the expected lives of the loans. Amounts recorded as accretion are realized in cash as individual loans are paid down or otherwise resolved; however, the timing of cash realization may differ from the timing of income recognition. These cash flows from the repayment or resolution of covered loans, inclusive of amounts that have been accreted through earnings over time, are recognized as cash flows from investing activities in the consolidated statements of cash flows upon receipt. Cash payments from the FDIC in the form of reimbursements of losses related to the

77

covered loans under the Single Family Shared-Loss Agreement are also characterized as investing cash flows. Cash generated by the repayment and resolution of covered loans and reimbursements from the FDIC totaled $348.5 million and $430.3 million for the nine months ended September 30, 2017 and 2016, respectively. Both cash generated by the repayment and resolution of covered loans and cash payments received from the FDIC have been and are expected to continue to be, although to a lesser extent in the future, consistent and relatively predictable sources of liquidity.

In addition to cash provided by operating activities, the repayment and resolution of covered loans and payments under the Single Family Shared-Loss Agreement from the FDIC, BankUnited’s liquidity needs, particularly liquidity to fund growth of interest earning assets, have been and continue to be met by deposit growth and FHLB advances. The investment portfolio also provides a source of liquidity.

BankUnited has access to additional liquidity through FHLB advances, other collateralized borrowings, wholesale deposits or the sale of available for sale securities. At September 30, 2017, unencumbered investment securities available for sale totaled $4.3 billion. At September 30, 2017, BankUnited had available borrowing capacity at the FHLB of $3.8 billion, unused borrowing capacity at the FRB of $544 million and unused Federal funds lines of credit totaling $70 million. Management also has the ability to exert substantial control over the rate and timing of growth of the non-covered loan portfolio, and resultant requirements for liquidity to fund loans.

Continued runoff of the covered loan portfolio and FDIC indemnification asset and growth of deposits and the non-covered loan portfolio are the most significant trends expected to impact the Bank’s liquidity in the near term.

The ALCO policy has established several measures of liquidity which are monitored monthly by the ALCO and quarterly by the Board of Directors. One primary measure of liquidity monitored by management is the 30 day total liquidity ratio, defined as (a) the sum of cash and cash equivalents, pledgeable securities and a measure of funds expected to be generated by operations over the next 30 days; divided by (b) the sum of potential deposit runoff, liabilities maturing within the 30 day time frame and a measure of funds expected to be used in operations over the next 30 days. BankUnited’s liquidity is considered acceptable if the 30 day total liquidity ratio exceeds 100%. At September 30, 2017, BankUnited’s 30 day total liquidity ratio was 172%. Management also monitors a one year liquidity ratio, defined as (a) cash and cash equivalents, pledgeable securities, unused borrowing capacity at the FHLB, and loans and non-agency securities maturing within one year; divided by (b) forecasted deposit outflows and borrowings maturing within one year. Forecasted deposit outflows, excluding certificate of deposits, are based on runoff rates derived from the most recent external core deposit analysis obtained by the Company. This ratio allows management to monitor liquidity over a longer time horizon. The acceptable threshold established by the ALCO for this liquidity measure is 100%. At September 30, 2017, BankUnited’s one year liquidity ratio was 158%. Additional measures of liquidity regularly monitored by the ALCO include the ratio of wholesale funding to total assets, a measure of available liquidity to volatile liabilities and the ratio of brokered deposits to total deposits. At September 30, 2017, BankUnited was within acceptable limits established by the ALCO and the Board of Directors for each of these measures.

As a holding company, BankUnited, Inc. is a corporation separate and apart from its banking subsidiary, and therefore, provides for its own liquidity. BankUnited, Inc.’s main sources of funds include management fees and dividends from the Bank, access to capital markets and, to a lesser extent, its own available for sale securities portfolio. There are regulatory limitations that affect the ability of the Bank to pay dividends to BankUnited, Inc. Management believes that such limitations will not impact our ability to meet our ongoing near-term cash obligations.

We expect that our liquidity requirements will continue to be satisfied over the next 12 months through the sources of funds described above.

Interest Rate Risk

The principal component of the Company’s risk of loss arising from adverse changes in the fair value of financial instruments, or market risk, is interest rate risk, including the risk that assets and liabilities with similar re-pricing characteristics may not reprice at the same time or to the same degree. A primary objective of the Company’s asset/liability management activities is to maximize net interest income, while maintaining acceptable levels of interest rate risk. The ALCO is responsible for establishing policies to limit exposure to interest rate risk, and to ensure procedures are established to monitor compliance with these policies. The guidelines established by the ALCO are approved at least annually by the Board of Directors.

Management believes that the simulation of net interest income in different interest rate environments provides the most meaningful measure of interest rate risk. Income simulation analysis is designed to capture not only the potential of all assets and liabilities to mature or reprice, but also the probability that they will do so. Income simulation also attends to the relative interest rate sensitivities of these items, and projects their behavior over an extended period of time. Finally, income simulation

78

permits management to assess the probable effects on the balance sheet not only of changes in interest rates, but also of proposed strategies for responding to them.

The income simulation model analyzes interest rate sensitivity by projecting net interest income over twelve and twenty-four month periods in a most likely rate scenario based on consensus forward interest rate curves versus net interest income in alternative rate scenarios. Simulations are generated based on both static and dynamic balance sheet assumptions. Management continually reviews and refines its interest rate risk management process in response to changes in the interest rate environment and economic climate. Currently, our model projects a down 100, plus 100, plus 200 and plus 300 basis point change with rates increasing by the magnitude of the rate ramp evenly over the next 12 months as well as flattening yield curve scenarios and instantaneous rate shocks of down 100, plus 100, plus 200 and plus 300 basis points. We continually evaluate the scenarios being modeled with a view toward adapting them to changing economic conditions, expectations and trends.

The Company’s ALCO policy provides that net interest income sensitivity will be considered acceptable if decreases in forecast net interest income, based on a dynamic forecasted balance sheet, in specified rate shock scenarios are within specified percentages of forecast net interest income in the most likely rate scenario over the next twelve months and in the second year. The following table illustrates the acceptable limits as defined by policy and the impact on forecasted net interest income of down 100, plus 100, plus 200 and plus 300 basis point rate shock scenarios at September 30, 2017 and December 31, 2016:

	Down 100		Plus 100		Plus 200		Plus 300
Policy Limits:
In year 1	(6.0	)%	(6.0	)%	(10.0	)%	(14.0	)%
In year 2	(9.0	)%	(9.0	)%	(13.0	)%	(17.0	)%
Model Results at September 30, 2017 - increase (decrease):
In year 1	(0.4	)%	(0.2	)%	(0.6	)%	(1.2	)%
In year 2	(3.2	)%	1.7	%	3.0	%	4.2	%
Model Results at December 31, 2016 - increase (decrease):
In year 1	(2.0	)%	1.5	%	2.8	%	3.4	%
In year 2	(3.7	)%	2.6	%	4.6	%	6.6	%

Management also simulates changes in EVE in various interest rate environments. The ALCO policy has established parameters of acceptable risk that are defined in terms of the percentage change in EVE from a base scenario under six rate scenarios, derived by implementing immediate parallel movements of plus and minus 100, 200 and 300 basis points from current rates. We did not simulate decreases in interest rates greater than 100 basis points at September 30, 2017 due to the current low rate environment. The parameters established by the ALCO stipulate that the modeled decline in EVE is considered acceptable if the decline is less than 9%, 18% and 27% in plus or minus 100, plus or minus 200 and plus or minus 300 basis point scenarios, respectively. As of September 30, 2017, our simulation for the Company indicated percentage changes from base EVE of 1.7%, (3.6)%, (7.9)% and (12.7)% in down 100, plus 100, plus 200 and plus 300 basis point scenarios, respectively.

These measures fall within an acceptable level of interest rate risk per the policies established by the ALCO and the Board of Directors. In the event the models indicate an unacceptable level of risk, the Company could undertake a number of actions that would reduce this risk, including the sale or re-positioning of a portion of its available for sale investment portfolio, restructuring of borrowings, or the use of derivatives such as interest rate swaps and caps.

Many assumptions were used by the Company to calculate the impact of changes in interest rates, including the change in rates. Actual results may not be similar to the Company’s projections due to several factors including the timing and frequency of rate changes, market conditions, changes in depositor behavior and the shape of the yield curve. Actual results may also differ due to the Company’s actions, if any, in response to changing rates and conditions.

Derivative Financial Instruments

Interest rate swaps are one of the tools we use to manage interest rate risk. These derivative instruments are used to mitigate exposure to changes in interest rates on variable rate borrowings such as FHLB advances and to manage duration of liabilities. These interest rate swaps are designated as cash flow hedging instruments. The fair value of these instruments is included in other assets and other liabilities in our consolidated balance sheets and changes in fair value are reported in accumulated other comprehensive income. At September 30, 2017, outstanding interest rate swaps designated as cash flow hedges had an aggregate notional amount of $2.0 billion. The aggregate fair value of interest rate swaps designated as cash flow

79

hedges included in other assets was $1.1 million and the aggregate fair value of interest rate swaps designated as cash flow hedges included in other liabilities was $0.3 million.

Interest rate swaps and caps not designated as cash flow hedges had an aggregate notional amount of $2.3 billion at September 30, 2017. The aggregate fair value of these interest rate swaps and caps included in other assets was $27.3 million and the aggregate fair value included in other liabilities was $26.8 million. These interest rate swaps and caps were entered into as accommodations to certain of our commercial borrowers.

See Note 7 to the consolidated financial statements for additional information about derivative financial instruments.

Off-Balance Sheet Arrangements

For more information on contractual obligations and commitments, see Note 11 to the consolidated financial statements, the FHLB Advances, Notes and Other Borrowings section of this MD&A and Off-Balance Sheet Arrangements in the MD&A of the Company's 2016 Annual Report on Form 10-K.

Critical Accounting Policies and Estimates

The Company has made no significant changes in its critical accounting policies and significant estimates from those disclosed in the 2016 Annual Report on Form 10-K.

Non-GAAP Financial Measures

Tangible book value per common share is a non-GAAP financial measure. Management believes this measure is relevant to understanding the capital position and performance of the Company. Disclosure of this non-GAAP financial measure also provides a meaningful base for comparability to other financial institutions. The following table reconciles the non-GAAP financial measurement of tangible book value per common share to the comparable GAAP financial measurement of book value per common share at September 30, 2017 (in thousands except share and per share data):

Total stockholders’ equity	$	2,623,489
Less: goodwill and other intangible assets	77,857
Tangible stockholders’ equity	$	2,545,632
Common shares issued and outstanding	106,821,902
Book value per common share	$	24.56
Tangible book value per common share	$	23.83

Item 3.  Quantitative and Qualitative Disclosures About Market Risk

See the section entitled “Interest Rate Risk” included in Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Item 4.   Controls and Procedures

As of the end of the period covered by this Form 10-Q, we carried out an evaluation under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as defined in Exchange Act Rules 13a-15(e) and 15d-15(e). Based upon that evaluation, the Chief Executive Officer and the Chief Financial Officer concluded that our disclosure controls and procedures were effective.

During the quarter ended September 30, 2017, there were no changes in the Company’s internal control over financial reporting that materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II.  OTHER INFORMATION

Item 1.   Legal Proceedings

 The Company is involved as plaintiff or defendant in various legal actions arising in the normal course of business. In the opinion of management, based upon currently available information and the advice of legal counsel, the likelihood is remote that the impact of these proceedings, either individually or in the aggregate, would be material to the Company’s consolidated financial position, results of operations or cash flows.

Item 1A.   Risk Factors

For a discussion of risk factors relating to our business, please refer to the factors discussed under “Part I-Item 1A - Risk Factors” in our 2016 Form 10-K filed with the Securities and Exchange Commission on February 28, 2017, in addition to the following factor.

A significant portion of our loans are to borrowers whose businesses are located in or secured by properties located in the state of Florida, which was impacted by Hurricane Irma. In addition, the Bank has a limited number of customers and collateral properties located in areas of Texas that were impacted by Hurricane Harvey. The effects of Hurricanes Irma and Harvey and other adverse weather events may negatively affect our geographic markets or disrupt our operations, which could have an adverse impact on our results of operations.

Our geographic markets in Florida and other coastal areas are susceptible to severe weather, including hurricanes, flooding and damaging winds. On September 10, 2017, Hurricane Irma made landfall in Florida as a Category 4 hurricane affecting some areas with significant flooding, wind damage and power outages. In addition, the Bank has a limited number of customers and collateral properties located in areas of Texas that were impacted by Hurricane Harvey during August, 2017. Weather events such as Hurricanes Irma and Harvey can disrupt our operations, result in damage to our facilities and negatively affect the local economies in which we operate. These events may lead to a decline in loan originations, reduce or destroy the value of collateral for our loans, particularly real estate, negatively impact the business operations of our customers, and cause an increase in delinquencies, foreclosures and loan losses. These events may also lead to a decline in regional economic conditions and prospects in certain circumstances. Our business or results of operations may be adversely impacted by these and other negative effects of such weather events.

We are currently in the process of assessing the impact of Hurricanes Irma and Harvey on our borrowers’ ability to repay their obligations to the Bank and on the value of underlying collateral properties. Although we currently believe the storms did not materially impact the ability of the substantial majority of our borrowers to repay their loans, our impact assessment is ongoing, including with respect to the impact on our loan originations, the value of properties securing our loans or the performance of our loans, the economic condition of our borrowers and their ability to timely repay their obligations, and the overall impacts on regional economic conditions and our business, operations and growth prospects in the affected market areas. As a result, it is premature to conclude with certainty as to the ultimate impact of these hurricanes on our level of loan losses, our business or the results of our operations. The Bank is generally named as a loss payee on hazard and flood insurance policies covering collateral properties and carries casualty and business interruption insurance. These policies could partially mitigate losses that the Bank may sustain due to the effects of these hurricanes; however, the timing and amount of any proceeds that we may recover from insurance policies is uncertain and may not be sufficient to adequately compensate us for losses that we experience due to these hurricanes and other natural disasters.

81

Item 6. 

Exhibits

Exhibit Number	Description	Location
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith
101.INS	XBRL Instance Document	Filed herewith
101.SCH	XBRL Taxonomy Extension Schema	Filed herewith
101.CAL	XBRL Taxonomy Extension Calculation Linkbase	Filed herewith
101.DEF	XBRL Taxonomy Extension Definition Linkbase	Filed herewith
101.LAB	XBRL Taxonomy Extension Label Linkbase	Filed herewith
101.PRE	XBRL Taxonomy Extension Presentation Linkbase	Filed herewith

82

SIGNATURE

Pursuant to the requirements 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 this 8th day of November 2017. 

/s/ Rajinder P. Singh

Rajinder P. Singh

President and Chief Executive Officer

/s/ Leslie N. Lunak

Leslie N. Lunak

Chief Financial Officer

83

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Rajinder P. Singh, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BankUnited, 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.

/s/ Rajinder P. Singh

Rajinder P. Singh

President and Chief Executive Officer

Date: November 8, 2017

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Leslie N. Lunak, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BankUnited, 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.

/s/ Leslie N. Lunak

Leslie N. Lunak

Chief Financial Officer

Date: November 8, 2017

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer 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 Quarterly Report of BankUnited, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Rajinder P. Singh, as Chief Executive Officer of the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Rajinder P. Singh

Rajinder P. Singh

President and Chief Executive Officer

Date: November 8, 2017

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer 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 Quarterly Report of BankUnited, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Leslie N. Lunak, as Chief Financial Officer of the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Leslie N. Lunak

Leslie N. Lunak

Chief Financial Officer

Date: November 8, 2017

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 06, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	BankUnited, Inc.
Entity Central Index Key	0001504008
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock Shares Outstanding		106,820,503
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Cash and due from banks:
Non-interest bearing	$ 34,883	$ 40,260
Interest bearing	3,714	35,413
Interest bearing deposits at Federal Reserve Bank	254,004	372,640
Cash and cash equivalents	292,601	448,313
Investment securities available for sale, at fair value	6,893,472	6,073,584
Investment securities held to maturity	10,000	10,000
Non-marketable equity securities	270,239	284,272
Loans held for sale	31,507	41,198
Loans (including covered loans of $537,976 and $614,042)	20,610,430	19,395,394
Allowance for loan and lease losses	(158,573)	(152,953)
Loans, net	20,451,857	19,242,441
FDIC indemnification asset	349,617	515,933
Bank owned life insurance	248,876	239,736
Equipment under operating lease, net	588,207	539,914
Deferred tax asset, net	23,910	62,940
Goodwill and other intangible assets	77,857	78,047
Other assets	316,688	343,773
Total assets	29,554,831	27,880,151
Demand deposits:
Non-interest bearing	3,096,492	2,960,591
Interest bearing	1,828,809	1,523,064
Savings and money market	9,964,242	9,251,593
Time Deposits	6,333,701	5,755,642
Total deposits	21,223,244	19,490,890
Advances from Federal Home Loan Banks	4,871,000	5,239,348
Notes and other borrowings	402,828	402,809
Other liabilities	434,270	328,675
Total liabilities	26,931,342	25,461,722
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.01 per share, 400,000,000 shares authorized; 106,821,902 and 104,166,945 shares issued and outstanding	1,068	1,042
Paid-in capital	1,492,790	1,426,459
Retained earnings	1,077,042	949,681
Accumulated other comprehensive income	52,589	41,247
Total stockholders' equity	2,623,489	2,418,429
Total liabilities and stockholders' equity	$ 29,554,831	$ 27,880,151

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Covered loans net of premiums, discounts and deferred fees and costs	$ 537,976	$ 614,042
Stockholders' equity:
Common stock, par value (in Dollars per Share)	$ 0.01	$ 0.01
Common stock, shares authorized (in Shares)	400,000,000	400,000,000
Common stock, shares issued (in Shares)	106,821,902	104,166,945
Common stock, shares outstanding (in Shares)	106,821,902	104,166,945

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CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Loans	$ 253,815	$ 227,233	$ 739,586	$ 662,439
Investment securities	51,851	39,712	141,624	109,963
Other	3,777	3,036	10,606	8,850
Total interest income	309,443	269,981	891,816	781,252
Interest expense:
Deposits	45,919	30,968	120,161	86,427
Borrowings	22,260	17,278	60,209	51,939
Total interest expense	68,179	48,246	180,370	138,366
Net interest income before provision for loan losses	241,264	221,735	711,446	642,886
Provision for loan losses	37,854	24,408	63,573	42,449
Net interest income after provision for loan losses	203,410	197,327	647,873	600,437
Non-interest income:
Income from resolution of covered assets, net	6,400	8,883	22,066	26,426
Net gain (loss) on FDIC indemnification	(4,838)	993	(14,174)	(9,410)
Service charges and fees	4,938	5,171	15,554	14,529
Gain (loss) on sale of loans, net (including $0, $(10,033), $(1,582) and $(14,895) related to covered loans)	2,447	(7,947)	6,601	(7,360)
Gain on investment securities available for sale, net	26,931	3,008	29,194	10,065
Lease financing	13,287	11,188	40,067	32,762
Other non-interest income	4,161	3,779	12,055	10,118
Total non-interest income	53,326	25,075	111,363	77,130
Non-interest expense:
Employee compensation and benefits	58,327	55,162	178,386	166,374
Occupancy and equipment	18,829	18,867	56,689	57,199
Amortization of FDIC indemnification asset	45,225	38,957	135,351	116,711
Deposit insurance expense	5,764	4,943	16,827	12,866
Professional fees	2,748	3,884	12,573	10,119
Telecommunications and data processing	3,452	3,746	10,481	10,800
Depreciation of equipment under operating lease	8,905	6,855	25,655	20,004
Other non-interest expense	13,455	15,590	37,735	40,151
Total non-interest expense	156,705	148,004	473,697	434,224
Income before income taxes	100,031	74,398	285,539	243,343
Provision for income taxes	32,252	23,550	89,060	80,896
Net income	$ 67,779	$ 50,848	$ 196,479	$ 162,447
Earnings Per Share, Basic	$ 0.62	$ 0.47	$ 1.79	$ 1.52
Earnings Per Share, Diluted	0.62	0.47	1.79	1.50
Cash dividends declared per common share (in Dollars per Share)	$ 0.21	$ 0.21	$ 0.63	$ 0.63

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CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Provision for (recovery of) losses on covered loans	$ 37,854	$ 24,408	$ 63,573	$ 42,449
Non-interest income:
Gain (Loss) on Sale of Covered Loans	2,447	(7,947)	6,601	(7,360)
Covered [Member]
Provision for (recovery of) losses on covered loans	261	(445)	2,693	(1,119)
Non-interest income:
Gain (Loss) on Sale of Covered Loans	$ 0	$ (10,033)	$ (1,582)	$ (14,895)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 67,779	$ 50,848	$ 196,479	$ 162,447
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	8,557	3,216	32,826	53,490
Reclassification adjustment for net securities gains realized in income	(16,293)	(1,820)	(17,662)	(6,090)
Net change in unrealized gains on securities available for sale	(7,736)	1,396	15,164	47,400
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period	(170)	5,055	(8,337)	(34,948)
Reclassification adjustment for net losses realized in income	1,210	2,264	4,515	7,896
Net change in unrealized losses on derivative instruments	1,040	7,319	(3,822)	(27,052)
Other comprehensive income (loss)	(6,696)	8,715	11,342	20,348
Comprehensive income	$ 61,083	$ 59,563	$ 207,821	$ 182,795

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 196,479	$ 162,447
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and accretion, net	(71,111)	(90,360)
Provision for loan losses	63,573	42,449
Income from resolution of covered assets, net	(22,066)	(26,426)
Net loss on FDIC indemnification	14,174	9,410
(Gain) loss on sale of loans, net	(6,601)	7,360
Increase in cash surrender value of bank owned life insurance	4,647	2,973
Gain on investment securities available for sale, net	(29,194)	(10,065)
Equity based compensation	14,337	13,418
Depreciation and amortization	45,204	38,971
Deferred income taxes	31,625	33,958
Proceeds from sale of loans held for sale	126,778	121,968
Loans originated for sale, net of repayments	(109,588)	(108,075)
Other:
(Increase) decrease in other assets	15,743	(9,502)
Increase (decrease) in other liabilities	(33,546)	44,708
Net cash provided by operating activities	231,160	227,288
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of investment securities available for sale	(2,355,872)	(2,224,174)
Proceeds from repayments and calls of investment securities available for sale	861,618	457,610
Proceeds from sale of investment securities available for sale	827,353	753,756
Purchase of non-marketable equity securities	(185,718)	(178,813)
Proceeds from redemption of non-marketable equity securities	199,751	115,388
Purchases of loans	(949,294)	(936,882)
Loan originations, repayments and resolutions, net	(192,075)	(1,389,435)
Proceeds from sale of loans, net	98,404	120,537
Decrease (Increase) In FDIC Indemnification Asset, Claims Filed, Investing Activities	16,768	30,829
Acquisition of equipment under operating lease, net	(73,948)	(52,399)
Other investing activities	(31,718)	(19,577)
Net cash used in investing activities	(1,784,731)	(3,323,160)
Cash flows from financing activities:
Net increase in deposits	1,732,354	1,897,808
Additions to Federal Home Loan Bank advances	3,921,000	3,360,000
Repayments of Federal Home Loan Bank advances	(4,290,000)	(2,150,000)
Dividends paid	(68,583)	(67,342)
Exercise of stock options	61,519	222
Other financing activities	41,569	49,638
Net cash provided by financing activities	1,397,859	3,090,326
Net increase (decrease) in cash and cash equivalents	(155,712)	(5,546)
Cash and cash equivalents, beginning of period	448,313	267,500
Cash and cash equivalents, end of period	292,601	261,954
Supplemental Cash Flow Information [Abstract]
Interest paid	169,759	132,398
Income taxes paid, net	46,320	8,168
Supplemental schedule of non-cash investing and financing activities:
Transfers from loans to other real estate owned and other repossessed assets	6,738	11,679
Dividends declared, not paid	23,045	22,482
Unsettled purchases of investment securities available for sale	$ 107,500	$ 0

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Balance (in Shares) at Dec. 31, 2015		103,626,255
Balance at Dec. 31, 2015	$ 2,243,898	$ 1,036	$ 1,406,786	$ 813,894	$ 22,182
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	182,795			162,447	20,348
Dividends	(67,444)			(67,444)
Equity based compensation (in Shares)		644,888
Equity based compensation	13,256	$ 6	13,250
Forfeiture of unvested shares (in Shares)		(139,718)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(484)	$ (1)	(483)
Exercise of stock options (in Shares)		10,000
Exercise of stock options	222	$ 0	222
Tax benefits from dividend equivalents and equity based compensation	847		847
Balance (in Shares) at Sep. 30, 2016		104,141,425
Balance at Sep. 30, 2016	2,373,090	$ 1,041	1,420,622	908,897	42,530
Balance (in Shares) at Dec. 31, 2016		104,166,945
Balance at Dec. 31, 2016	2,418,429	$ 1,042	1,426,459	949,681	41,247
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	207,821			196,479	11,342
Dividends	(69,118)			(69,118)
Equity based compensation (in Shares)		618,306
Equity based compensation	12,109	$ 6	12,103
Forfeiture of unvested shares (in Shares)		(267,457)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	$ (7,271)	$ (3)	(7,268)
Exercise of stock options (in Shares)	2,304,108,000	2,304,108
Exercise of stock options	$ 61,519	$ 23	61,496
Balance (in Shares) at Sep. 30, 2017		106,821,902
Balance at Sep. 30, 2017	$ 2,623,489	$ 1,068	$ 1,492,790	$ 1,077,042	$ 52,589

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Earnings Per Common Share

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Earnings Per Common Share

Earnings Per Common Share

The computation of basic and diluted earnings per common share is presented below for the periods indicated (in thousands, except share and per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
c	2017			2016			2017			2016
Basic earnings per common share:
Numerator:
Net income	$	67,779		$	50,848		$	196,479		$	162,447
Distributed and undistributed earnings allocated to participating securities	(2,525		)	(2,031		)	(7,331		)	(6,522		)
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Denominator:
Weighted average common shares outstanding	106,809,381			104,153,018			106,488,396			104,077,932
Less average unvested stock awards	(1,101,485		)	(1,150,268		)	(1,102,381		)	(1,165,509		)
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Basic earnings per common share	$	0.62		$	0.47		$	1.79		$	1.52
Diluted earnings per common share:
Numerator:
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Adjustment for earnings reallocated from participating securities	6			(81		)	21			(264		)
Income used in calculating diluted earnings per common share	$	65,260		$	48,736		$	189,169		$	155,661
Denominator:
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Dilutive effect of stock options and executive share-based awards	365,286			558,304			479,459			699,977
Weighted average shares for diluted earnings per common share	106,073,182			103,561,054			105,865,474			103,612,400
Diluted earnings per common share	$	0.62		$	0.47		$	1.79		$	1.50

Included in participating securities above are unvested shares and 3,023,314 dividend equivalent rights outstanding at September 30, 2017 that were issued in conjunction with the IPO of the Company's common stock. These dividend equivalent rights expire in 2021 and participate in dividends on a one-for-one basis.

The following potentially dilutive securities were outstanding at September 30, 2017 and 2016, but excluded from the calculation of diluted earnings per common share for the periods indicated because their inclusion would have been anti-dilutive: 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Unvested shares and share units	1,111,300	1,296,848	1,111,300	1,296,848
Stock options and warrants	1,850,279	1,851,376	1,850,279	1,851,376

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Investment Securities

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

Investment securities available for sale consisted of the following at the dates indicated (in thousands):

	September 30, 2017
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	24,969	$	—	$	(12	)	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	2,332,616		16,762		(691		)	2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	139,966		1,067		(1,813		)	139,220
Private label residential MBS and CMOs	507,381		20,812		(335		)	527,858
Private label commercial MBS	1,140,465		14,646		(1,510		)	1,153,601
Single family rental real estate-backed securities	566,635		6,425		(112		)	572,948
Collateralized loan obligations	695,414		4,905		—			700,319
Non-mortgage asset-backed securities	80,255		2,382		—			82,637
Preferred stocks	60,716		10,000		—			70,716
State and municipal obligations	666,013		14,370		(3,368		)	677,015
SBA securities	572,540		14,152		(17		)	586,675
Other debt securities	4,056		4,783		—			8,839
	$	6,791,026	$	110,304	$	(7,858	)	$	6,893,472

	December 31, 2016
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	4,999	$	6	$	—		$	5,005
U.S. Government agency and sponsored enterprise residential MBS	1,513,028		15,922		(1,708		)	1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	126,754		670		(2,838		)	124,586
Private label residential MBS and CMOs	334,167		42,939		(2,008		)	375,098
Private label commercial MBS	1,180,386		9,623		(2,385		)	1,187,624
Single family rental real estate-backed securities	858,339		4,748		(1,836		)	861,251
Collateralized loan obligations	487,678		868		(1,250		)	487,296
Non-mortgage asset-backed securities	187,660		2,002		(2,926		)	186,736
Preferred stocks	76,180		12,027		(4		)	88,203
State and municipal obligations	705,884		3,711		(11,049		)	698,546
SBA securities	517,129		7,198		(421		)	523,906
Other debt securities	3,999		4,092		—			8,091
	$	5,996,203	$	103,806	$	(26,425	)	$	6,073,584

Investment securities held to maturity at September 30, 2017 and December 31, 2016 consisted of one State of Israel bond with a carrying value of $10 million. Fair value approximated carrying value at September 30, 2017 and December 31, 2016. The bond matures in 2024.

At September 30, 2017, contractual maturities of investment securities available for sale, adjusted for anticipated prepayments of mortgage-backed and other pass-through securities, were as follows (in thousands):

	Amortized Cost		Fair Value
Due in one year or less	$	684,986	$	697,034
Due after one year through five years	3,363,698		3,406,609
Due after five years through ten years	2,252,239		2,282,220
Due after ten years	429,387		436,893
Preferred stocks with no stated maturity	60,716		70,716
	$	6,791,026	$	6,893,472

Based on the Company’s assumptions, the estimated weighted average life of the investment portfolio as of September 30, 2017 was 4.9 years. The effective duration of the investment portfolio as of September 30, 2017 was 1.7 years. The model results are based on assumptions that may differ from actual results. 

The carrying value of securities pledged as collateral for FHLB advances, public deposits, interest rate swaps and to secure borrowing capacity at the FRB totaled $2.5 billion and $1.8 billion at September 30, 2017 and December 31, 2016, respectively.

The following table provides information about gains and losses on investment securities available for sale for the periods indicated (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Proceeds from sale of investment securities available for sale	$	399,430		$	259,571		$	827,353		$	753,756
Gross realized gains	$	28,261		$	3,471		$	30,553		$	10,528
Gross realized losses	(1,330		)	—			(1,359		)	—
Net realized gain	26,931			3,471			29,194			10,528
OTTI	—			(463		)	—			(463		)
Gain on investment securities available for sale, net	$	26,931		$	3,008		$	29,194		$	10,065

During the three and nine months ended September 30, 2016, OTTI was recognized on two positions in one private label commercial MBS. These positions were in unrealized loss positions at September 30, 2016 and the Company intended to sell the security before recovery of the amortized cost basis.

The following tables present the aggregate fair value and the aggregate amount by which amortized cost exceeded fair value for investment securities in unrealized loss positions, aggregated by investment category and length of time that individual securities had been in continuous unrealized loss positions at the dates indicated (in thousands):

	September 30, 2017
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities	$	24,957	$	(12	)	$	—	$	—		$	24,957	$	(12	)
U.S. Government agency and sponsored enterprise residential MBS	460,806		(425		)	9,544		(266		)	470,350		(691		)
U.S. Government agency and sponsored enterprise commercial MBS	55,152		(1,783		)	14,270		(30		)	69,422		(1,813		)
Private label residential MBS and CMOs	72,557		(217		)	5,820		(118		)	78,377		(335		)
Private label commercial MBS	124,664		(1,510		)	—		—			124,664		(1,510		)
Single family rental real estate-backed securities	14,708		(112		)	—		—			14,708		(112		)
State and municipal obligations	184,082		(3,368		)	—		—			184,082		(3,368		)
SBA securities	—		—			18,229		(17		)	18,229		(17		)
	$	936,926	$	(7,427	)	$	47,863	$	(431	)	$	984,789	$	(7,858	)

	December 31, 2016
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Government agency and sponsored enterprise residential MBS	$	191,463	$	(628	)	$	112,391	$	(1,080	)	$	303,854	$	(1,708	)
U.S. Government agency and sponsored enterprise commercial MBS	89,437		(2,838		)	—		—			89,437		(2,838		)
Private label residential MBS and CMOs	122,142		(1,680		)	8,074		(328		)	130,216		(2,008		)
Private label commercial MBS	169,535		(2,370		)	24,985		(15		)	194,520		(2,385		)
Single family rental real estate-backed securities	139,867		(842		)	176,057		(994		)	315,924		(1,836		)
Collateralized loan obligations	69,598		(402		)	173,983		(848		)	243,581		(1,250		)
Non-mortgage asset-backed securities	139,477		(2,926		)	—		—			139,477		(2,926		)
Preferred stocks	10,087		(4		)	—		—			10,087		(4		)
State and municipal obligations	448,180		(11,049		)	—		—			448,180		(11,049		)
SBA securities	4,204		(13		)	20,076		(408		)	24,280		(421		)
	$	1,383,990	$	(22,752	)	$	515,566	$	(3,673	)	$	1,899,556	$	(26,425	)

The Company monitors its investment securities available for sale for OTTI on an individual security basis. No securities were determined to be other-than-temporarily impaired during the nine months ended September 30, 2017. The Company does not intend to sell securities that are in significant unrealized loss positions at September 30, 2017 and it is not more likely than not that the Company will be required to sell these securities before recovery of the amortized cost basis, which may be at maturity. At September 30, 2017, 54 securities were in unrealized loss positions. The amount of impairment related to 20 of these securities was considered insignificant, totaling approximately $237 thousand and no further analysis with respect to these securities was considered necessary. The basis for concluding that impairment of the remaining securities was not other-than-temporary is further described below:

U.S. Government agency and sponsored enterprise residentialMBSand commercial MBS

At September 30, 2017, eight U.S. Government agency and sponsored enterprise residential MBS and four U.S. Government agency and sponsored enterprise commercial MBS were in unrealized loss positions. For five fixed rate securities, the impairment was primarily attributable to an increase in medium and long-term market interest rates subsequent to the date of acquisition. For the remaining seven variable rate securities, the amount of impairment was less than 1% of amortized cost. The timely payment of principal and interest on these securities is explicitly or implicitly guaranteed by the U.S. Government. Given the expectation of timely payment of principal and interest, the impairments were considered to be temporary.

Private label residentialMBSandCMOs

At September 30, 2017, five private label residential MBS and CMOs were in unrealized loss positions, primarily as a result of an increase in medium and long-term market interest rates subsequent to acquisition. The amount of impairment of each of the individual securities was less than 3% of amortized cost. These securities were assessed for OTTI using credit and prepayment behavioral models that incorporate CUSIP level constant default rates, voluntary prepayment rates and loss severity and delinquency assumptions. The results of these assessments were not indicative of credit losses related to any of these securities as of September 30, 2017. Given the limited severity of impairment and the expectation of timely recovery of outstanding principal, the impairments were considered to be temporary.

Private label commercialMBS

At September 30, 2017, four private label commercial MBS were in unrealized loss positions. The amount of impairment of each of the individual securities was less than 3% of amortized cost. The unrealized losses were primarily attributable to increases in market interest rates since the purchase of the securities. These securities were assessed for OTTI using credit and prepayment behavioral models incorporating assumptions consistent with the collateral characteristics of each security. The results of this analysis were not indicative of expected credit losses. Given the limited severity of impairment and the expectation of timely recovery of outstanding principal, the impairments were considered to be temporary.

Single family rental real estate-backed securities

At September 30, 2017, two single family rental real estate-backed securities were in unrealized loss positions. The unrealized losses were primarily due to increases in market interest rates since the purchase of the securities. The amount of impairment of each of the individual securities was less than 2% of amortized cost. Management's analysis of the credit characteristics, including loan-to-value and debt service coverage ratios, and levels of subordination for each of the securities is not indicative of projected credit losses. Given the limited severity of impairment and the absence of projected credit losses, the impairments were considered to be temporary.

State and municipal obligations

At September 30, 2017, 11 state and municipal obligations were in unrealized loss positions. The amount of impairment of each of the individual securities was less than 5% of amortized cost. All of the securities are rated investment grade by nationally recognized statistical ratings organizations. Management's evaluation of these securities for OTTI also encompassed the review of credit scores and analysis provided by a third party firm specializing in the analysis and credit review of municipal securities. Given the absence of expected credit losses and management's ability and intent to hold the securities until recovery, the impairments were considered to be temporary.

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Loans and Allowance for Loan and Lease Losses

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Loans and Allowance for Loan and Lease Losses

Loans and Allowance for Loan and Lease Losses

The Company segregates its loan portfolio between covered and non-covered loans. Non-covered loans include loans originated since the FSB acquisition and commercial and consumer loans acquired in the FSB Acquisition for which loss share coverage has terminated. Covered loans are further segregated between ACI loans and non-ACI loans.

Loans consisted of the following at the dates indicated (dollars in thousands):

	September 30, 2017
				Covered Loans									Percent of Total
	Non-Covered Loans			ACI			Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,958,205		$	470,300		$	28,589		$	4,457,094		21.7	%
Home equity loans and lines of credit	1,644			5,640			37,764			45,048			0.2	%
Other consumer loans	20,166			—			—			20,166			0.1	%
	3,980,015			475,940			66,353			4,522,308			22.0	%
Commercial:
Multi-family	3,358,801			—			—			3,358,801			16.3	%
Non-owner occupied commercial real estate	4,183,275			—			—			4,183,275			20.4	%
Construction and land	271,994			—			—			271,994			1.3	%
Owner occupied commercial real estate	1,959,464			—			—			1,959,464			9.5	%
Commercial and industrial	3,900,290			—			—			3,900,290			19.0	%
Commercial lending subsidiaries	2,374,193			—			—			2,374,193			11.5	%
	16,048,017			—			—			16,048,017			78.0	%
Total loans	20,028,032			475,940			66,353			20,570,325			100.0	%
Premiums, discounts and deferred fees and costs, net	44,422			—			(4,317		)	40,105
Loans including premiums, discounts and deferred fees and costs	20,072,454			475,940			62,036			20,610,430
Allowance for loan and lease losses	(153,725		)	(1,812		)	(3,036		)	(158,573		)
Loans, net	$	19,918,729		$	474,128		$	59,000		$	20,451,857

	December 31, 2016
				Covered Loans								Percent of Total
	Non-Covered Loans			ACI		Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,422,425		$	532,348	$	36,675		$	3,991,448		20.6	%
Home equity loans and lines of credit	1,120			3,894		47,629			52,643			0.3	%
Other consumer loans	24,365			—		—			24,365			0.1	%
	3,447,910			536,242		84,304			4,068,456			21.0	%
Commercial:
Multi-family	3,824,973			—		—			3,824,973			19.8	%
Non-owner occupied commercial real estate	3,739,235			—		—			3,739,235			19.3	%
Construction and land	311,436			—		—			311,436			1.6	%
Owner occupied commercial real estate	1,736,858			—		—			1,736,858			9.0	%
Commercial and industrial	3,391,614			—		—			3,391,614			17.5	%
Commercial lending subsidiaries	2,280,685			—		—			2,280,685			11.8	%
	15,284,801			—		—			15,284,801			79.0	%
Total loans	18,732,711			536,242		84,304			19,353,257			100.0	%
Premiums, discounts and deferred fees and costs, net	48,641			—		(6,504		)	42,137
Loans including premiums, discounts and deferred fees and costs	18,781,352			536,242		77,800			19,395,394
Allowance for loan and lease losses	(150,853		)	—		(2,100		)	(152,953		)
Loans, net	$	18,630,499		$	536,242	$	75,700		$	19,242,441

Included in non-covered loans above are $38 million and $47 million at September 30, 2017 and December 31, 2016, respectively, of ACI commercial loans acquired in the FSB Acquisition.

Through two subsidiaries, the Bank provides commercial and municipal equipment and franchise financing utilizing both loan and lease structures. At September 30, 2017 and December 31, 2016, the commercial lending subsidiaries portfolio included a net investment in direct financing leases of $680 million and $643 million, respectively.

During the three and nine months ended September 30, 2017 and 2016, the Company purchased 1-4 single family residential loans totaling $312 million, $949 million, $355 million and $937 million, respectively.

At September 30, 2017, the Company had pledged real estate loans with UPB of approximately $10.5 billion and recorded investment of approximately $9.9 billion as security for FHLB advances.

At September 30, 2017 and December 31, 2016, the UPB of ACI loans was $1.2 billion and $1.5 billion, respectively. The accretable yield on ACI loans represents the amount by which undiscounted expected future cash flows exceed recorded investment. Changes in the accretable yield on ACI loans for the nine months ended September 30, 2017 and the year ended December 31, 2016 were as follows (in thousands):

Balance at December 31, 2015	$	902,565
Reclassifications from non-accretable difference	76,751
Accretion	(303,931		)
Balance at December 31, 2016	675,385
Reclassifications from non-accretable difference	72,827
Accretion	(226,251		)
Balance at September 30, 2017	$	521,961

Covered loan sales

During the periods indicated, the Company sold covered residential loans to third parties on a non-recourse basis. The following table summarizes the impact of these transactions (in thousands): 

	Three Months Ended September 30,			Nine Months Ended September 30,
	2016			2017			2016
UPB of loans sold	$	61,406		$	123,737		$	176,958
Cash proceeds, net of transaction costs	$	37,047		$	98,404		$	120,537
Recorded investment in loans sold	47,080			99,986			135,432
Loss on sale of covered loans, net	$	(10,033	)	$	(1,582	)	$	(14,895	)
Gain on FDIC indemnification, net	$	8,026		$	1,266		$	11,958

There was no sale of covered loans for the three months ended September 30, 2017.

Allowance for loan and lease losses 

Activity in the ALLL is summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017										2016
	Residential and Other Consumer		Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	13,550	$	142,098		$	—	$	155,648		$	12,415		$	123,303		$	135,718
Provision for (recovery of) loan losses:
Covered loans	268		(7		)	—		261			(430		)	(15		)	(445		)
Non-covered loans	363		32,230			5,000		37,593			1,974			22,879			24,853
Total provision	631		32,223			5,000		37,854			1,544			22,864			24,408
Charge-offs:
Covered loans	—		—			—		—			(247		)	—			(247		)
Non-covered loans	—		(36,028		)	—		(36,028		)	—			(6,615		)	(6,615		)
Total charge-offs	—		(36,028		)	—		(36,028		)	(247		)	(6,615		)	(6,862		)
Recoveries:
Covered loans	31		7			—		38			9			15			24
Non-covered loans	8		1,053			—		1,061			5			1,183			1,188
Total recoveries	39		1,060			—		1,099			14			1,198			1,212
Ending balance	$	14,220	$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

	Nine Months Ended September 30,
	2017											2016
	Residential and Other Consumer			Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	11,503		$	141,450		$	—	$	152,953		$	16,211		$	109,617		$	125,828
Provision for (recovery of) loan losses:
Covered loans	2,738			(45		)	—		2,693			(1,074		)	(45		)	(1,119		)
Non-covered loans	(52		)	55,932			5,000		60,880			(420		)	43,988			43,568
Total provision	2,686			55,887			5,000		63,573			(1,494		)	43,943			42,449
Charge-offs:
Covered loans	(55		)	—			—		(55		)	(1,086		)	—			(1,086		)
Non-covered loans	—			(61,034		)	—		(61,034		)	—			(15,748		)	(15,748		)
Total charge-offs	(55		)	(61,034		)	—		(61,089		)	(1,086		)	(15,748		)	(16,834		)
Recoveries:
Covered loans	65			45			—		110			77			45			122
Non-covered loans	21			3,005			—		3,026			18			2,893			2,911
Total recoveries	86			3,050			—		3,136			95			2,938			3,033
Ending balance	$	14,220		$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

The following table presents information about the balance of the ALLL and related loans at the dates indicated (in thousands):

	September 30, 2017								December 31, 2016
	Residential and Other Consumer		Commercial		Unallocated		Total		Residential and Other Consumer		Commercial		Total
Allowance for loan and lease losses:
Ending balance	$	14,220	$	139,353	$	5,000	$	158,573	$	11,503	$	141,450	$	152,953
Covered loans:
Ending balance	$	4,848	$	—	$	—	$	4,848	$	2,100	$	—	$	2,100
Ending balance: non-ACI loans individually evaluated for impairment	$	1,024	$	—	$	—	$	1,024	$	529	$	—	$	529
Ending balance: non-ACI loans collectively evaluated for impairment	$	2,012	$	—	$	—	$	2,012	$	1,571	$	—	$	1,571
Ending balance: ACI loans	$	1,812	$	—	$	—	$	1,812	$	—	$	—	$	—
Non-covered loans:
Ending balance	$	9,372	$	139,353	$	5,000	$	153,725	$	9,403	$	141,450	$	150,853
Ending balance: new loans individually evaluated for impairment	$	71	$	23,902	$	—	$	23,973	$	12	$	19,229	$	19,241
Ending balance: new loans collectively evaluated for impairment	$	9,301	$	115,451	$	5,000	$	129,752	$	9,391	$	122,221	$	131,612
Ending balance: ACI loans	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Loans:							0
Covered loans:
Ending balance	$	537,976	$	—	$	—	$	537,976	$	614,042	$	—	$	614,042
Ending balance: non-ACI loans individually evaluated for impairment	$	11,721	$	—	$	—	$	11,721	$	12,396	$	—	$	12,396
Ending balance: non-ACI loans collectively evaluated for impairment	$	50,315	$	—	$	—	$	50,315	$	65,404	$	—	$	65,404
Ending balance: ACI loans	$	475,940	$	—	$	—	$	475,940	$	536,242	$	—	$	536,242
Non-covered loans:
Ending balance	$	4,033,612	$	16,038,842	$	—	$	20,072,454	$	3,495,775	$	15,285,577	$	18,781,352
Ending balance: new loans individually evaluated for impairment	$	911	$	210,364	$	—	$	211,275	$	561	$	176,932	$	177,493
Ending balance: new loans collectively evaluated for impairment	$	4,032,701	$	15,790,546	$	—	$	19,823,247	$	3,495,207	$	15,061,707	$	18,556,914
Ending balance: ACI loans	$	—	$	37,932	$	—	$	37,932	$	7	$	46,938	$	46,945

The ALLL on residential and other consumer ACI loans at September 30, 2017 represents impairment of one pool of ACI home equity loans and lines of credit.

The ALLL at September 30, 2017 included $5.4 million related to the impact of Hurricanes Irma and Harvey, which made landfall during the three months ended September 30, 2017. The ALLL includes $0.4 million related to commercial loans that were downgraded during the three months ended September 30, 2017 as a result of the hurricanes and a $5.0 million unallocated qualitative allowance.

Credit quality information

Loans other than ACI loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due, according to the contractual terms of the loan agreements. Commercial relationships on non-accrual status with committed balances greater than or equal to $1.0 million that have internal risk ratings of substandard or doubtful, as well as loans that have been modified in TDRs, are individually evaluated for impairment. Other commercial relationships on non-accrual status with committed balances under $1.0 million may also be evaluated individually for impairment, at management's discretion. The likelihood of loss related to loans assigned internal risk ratings of substandard or doubtful is considered elevated due to their identified credit weaknesses. Factors considered by management in evaluating impairment include payment status, financial condition of the borrower, collateral value, and other factors impacting the probability of collecting scheduled principal and interest payments when due.

ACI loans or pools are considered to be impaired when it is probable that the Company will be unable to collect all of the expected cash flows at acquisition (as adjusted for any additional cash flows expected to be collected arising from changes in estimates after acquisition), other than due to changes in interest rate indices and prepayment assumptions.

The table below presents information about loans or ACI pools identified as impaired at the dates indicated (in thousands):

	September 30, 2017						December 31, 2016
	Recorded Investment		UPB		Related Specific Allowance		Recorded Investment		UPB		Related Specific Allowance
Non-covered loans:
With no specific allowance recorded:
1-4 single family residential	$	27	$	32	$	—	$	—	$	—	$	—
Non-owner occupied commercial real estate	9,041		9,224		—		510		512		—
Construction and land	1,238		1,238		—		1,238		1,238		—
Owner occupied commercial real estate	16,786		16,949		—		16,834		16,894		—
Commercial and industrial
Taxi medallion loans	20,320		20,321		—		18,107		18,107		—
Other commercial and industrial	1,081		1,095		—		6,172		6,172		—
Commercial lending subsidiaries	12,810		12,815		—		10,620		10,510		—
With a specific allowance recorded:
1-4 single family residential	884		863		71		561		546		12
Owner occupied commercial real estate	3,961		3,943		2,994		491		513		263
Commercial and industrial
Taxi medallion loans	100,252		100,255		13,117		73,131		73,147		5,948
Other commercial and industrial	41,297		41,292		7,313		29,452		29,463		9,168
Commercial lending subsidiaries	3,578		3,553		478		21,712		21,605		3,850
Total:
Residential and other consumer	$	911	$	895	$	71	$	561	$	546	$	12
Commercial	210,364		210,685		23,902		178,267		178,161		19,229
	$	211,275	$	211,580	$	23,973	$	178,828	$	178,707	$	19,241
Covered loans:
Non-ACI loans:
With no specific allowance recorded:
1-4 single family residential	$	102	$	118	$	—	$	1,169	$	1,391	$	—
Home equity loans and lines of credit	1,312		1,324		—		2,255		2,286		—
With a specific allowance recorded:
1-4 single family residential	2,221		2,579		208		1,272		1,514		181
Home equity loans and lines of credit	8,086		8,163		816		7,700		7,804		348
	$	11,721	$	12,184	$	1,024	$	12,396	$	12,995	$	529
ACI loans:
With a specific allowance recorded:
Home equity loans and lines of credit	$	5,640	$	27,731	$	1,812	$	—	$	—	$	—

Non-covered impaired loans include commercial real estate ACI loans modified in TDRs with a carrying value of $1.3 million as of December 31, 2016. Interest income recognized on impaired loans and pools for the three and nine months ended September 30, 2017 was approximately $2.9 million and $8.3 million, respectively. Interest income recognized on impaired loans for the three and nine months endedSeptember 30, 2016 was not material.

The following tables present the average recorded investment in impaired loans or ACI pools for the periods indicated (in thousands): 

	Three Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	962	$	2,304	$	—	$	344	$	3,001	$	—
Home equity loans and lines of credit	—		9,533		5,166		—		9,551		—
	962		$	11,837	$	5,166	344		$	12,552	$	—
Commercial:
Multi-family	1,359						—
Non-owner occupied commercial real estate	8,216						506
Construction and land	2,797						1,285
Owner occupied commercial real estate	20,579						18,231
Commercial and industrial
Taxi medallion loans	123,867						56,125
Other commercial and industrial	42,479						48,143
Commercial lending subsidiaries	21,398						13,873
	220,695						138,163
	$	221,657					$	138,507

	Nine Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	800	$	2,369	$	—	$	251	$	3,186	$	—
Home equity loans and lines of credit	—		9,638		4,209		—		8,920		—
	800		$	12,007	$	4,209	251		$	12,106	$	—
Commercial:
Multi-family	1,816						—
Non-owner occupied commercial real estate	4,056						776
Construction and land	3,317						650
Owner occupied commercial real estate	18,872						13,711
Commercial and industrial
Taxi medallion loans	107,529						30,977
Other commercial and industrial	43,308						41,975
Commercial lending subsidiaries	27,202						11,293
	206,100						99,382
	$	206,900					$	99,633

The following table presents the recorded investment in loans on non-accrual status as of the dates indicated (in thousands):

	September 30, 2017				December 31, 2016
	Non-Covered Loans		Covered Non-ACI Loans		Non-Covered Loans		Covered Non-ACI Loans
Residential and other consumer:
1-4 single family residential	$	1,890	$	934	$	566	$	918
Home equity loans and lines of credit	—		2,369		—		2,283
Other consumer loans	332		—		2		—
	2,222		$	3,303	568		$	3,201
Commercial:
Non-owner occupied commercial real estate	9,930				559
Construction and land	1,238				1,238
Owner occupied commercial real estate	21,455				19,439
Commercial and industrial
Taxi medallion loans	120,572				60,660
Other commercial and industrial	27,569				16,036
Commercial lending subsidiaries	16,625				32,645
	197,389				130,577
	$	199,611			$	131,145

Non-covered loans contractually delinquent by 90 days or more and still accruing totaled $0.8 million and $1.6 million at September 30, 2017 and December 31, 2016, respectively. The amount of additional interest income that would have been recognized on non-accrual loans had they performed in accordance with their contractual terms was approximately $1.4 million and $3.7 million for the three and nine months endedSeptember 30, 2017, respectively, and $1.1 million and $2.3 million for the three and nine months endedSeptember 30, 2016, respectively.

Management considers delinquency status to be the most meaningful indicator of the credit quality of 1-4 single family residential, home equity and consumer loans. Delinquency statistics are updated at least monthly. See "Aging of loans" below for more information on the delinquency status of loans. Original LTV and original FICO score are also important indicators of credit quality for the non-covered 1-4 single family residential portfolio. 

Internal risk ratings are considered the most meaningful indicator of credit quality for commercial loans. Internal risk ratings are a key factor in identifying loans that are individually evaluated for impairment and impact management’s estimates of loss factors used in determining the amount of the ALLL. Internal risk ratings are updated on a continuous basis. Generally, relationships with balances in excess of defined thresholds, ranging from $1 million to $3 million, are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. Loans exhibiting potential credit weaknesses that deserve management’s close attention and that if left uncorrected may result in deterioration of the repayment capacity of the borrower are categorized as special mention. Loans with well-defined credit weaknesses, including payment defaults, declining collateral values, frequent overdrafts, operating losses, increasing balance sheet leverage, inadequate cash flow, project cost overruns, unreasonable construction delays, past due real estate taxes or exhausted interest reserves, are assigned an internal risk rating of substandard. A loan with a weakness so severe that collection in full is highly questionable or improbable, but because of certain reasonably specific pending factors has not been charged off, will be assigned an internal risk rating of doubtful. 

The following tables summarize key indicators of credit quality for the Company's loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands): 

1-4 Single Family Residential credit exposure for non-covered loans, based on original LTV and FICO score: 

	September 30, 2017
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	94,357	$	111,279	$	185,614	$	819,422	$	1,210,672
60% - 70%	93,963		102,461		140,350		586,158		922,932
70% - 80%	139,923		173,808		316,544		1,091,868		1,722,143
More than 80%	24,725		20,610		24,981		85,781		156,097
	$	352,968	$	408,158	$	667,489	$	2,583,229	$	4,011,844

	December 31, 2016
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	87,035	$	113,401	$	163,668	$	751,291	$	1,115,395
60% - 70%	80,694		94,592		124,180		523,970		823,436
70% - 80%	110,509		148,211		276,425		907,450		1,442,595
More than 80%	22,115		9,058		15,470		42,280		88,923
	$	300,353	$	365,262	$	579,743	$	2,224,991	$	3,470,349

Commercial credit exposure, based on internal risk rating: 

	September 30, 2017
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,299,753	$	4,069,749	$	265,921	$	1,890,785	$	—	$	3,666,227	$	2,313,152	$	15,505,587
Special mention	32,255		12,824		—		31,495		—		38,389		35,936		150,899
Substandard	30,253		90,996		5,535		31,460		120,572		64,087		33,637		376,540
Doubtful	—		—		—		3,009		—		2,807		—		5,816
	$	3,362,261	$	4,173,569	$	271,456	$	1,956,749	$	120,572	$	3,771,510	$	2,382,725	$	16,038,842

	December 31, 2016
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,811,822	$	3,694,931	$	309,675	$	1,672,199	$	40,460	$	3,112,590	$	2,255,444	$	14,897,121
Special mention	12,000		7,942		—		33,274		—		19,009		—		72,225
Substandard	5,852		28,935		1,238		30,377		138,035		68,704		31,572		304,713
Doubtful	—		—		—		—		178		8,162		3,178		11,518
	$	3,829,674	$	3,731,808	$	310,913	$	1,735,850	$	178,673	$	3,208,465	$	2,290,194	$	15,285,577

Aging of loans: 

The following table presents an aging of loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands):

	September 30, 2017										December 31, 2016
	Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total		Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total
Non-covered loans:
1-4 single family residential	$	3,994,758	$	13,964	$	444	$	2,678	$	4,011,844	$	3,457,606	$	10,355	$	325	$	2,063	$	3,470,349
Home equity loans and lines of credit	1,623		21		—		—		1,644		1,120		—		—		—		1,120
Other consumer loans	19,623		500		—		1		20,124		24,306		—		—		—		24,306
Multi-family	3,362,261		—		—		—		3,362,261		3,829,674		—		—		—		3,829,674
Non-owner occupied commercial real estate	4,171,880		—		—		1,689		4,173,569		3,730,470		754		—		584		3,731,808
Construction and land	270,218		—		—		1,238		271,456		309,675		—		—		1,238		310,913
Owner occupied commercial real estate	1,947,728		1,261		266		7,494		1,956,749		1,726,826		1,557		797		6,670		1,735,850
Commercial and industrial
Taxi medallion loans	107,325		—		2,803		10,444		120,572		137,856		7,037		4,563		29,217		178,673
Other commercial and industrial	3,769,065		1,629		58		758		3,771,510		3,198,008		2,515		954		6,988		3,208,465
Commercial lending subsidiaries	2,382,725		—		—		—		2,382,725		2,284,435		12		3,247		2,500		2,290,194
	$	20,027,206	$	17,375	$	3,571	$	24,302	$	20,072,454	$	18,699,976	$	22,230	$	9,886	$	49,260	$	18,781,352
Covered loans:
Non-ACI loans:
1-4 single family residential	$	23,002	$	691	$	—	$	934	$	24,627	$	29,406	$	481	$	—	$	918	$	30,805
Home equity loans and lines of credit	33,263		1,114		663		2,369		37,409		43,129		1,255		534		2,077		46,995
	$	56,265	$	1,805	$	663	$	3,303	$	62,036	$	72,535	$	1,736	$	534	$	2,995	$	77,800
ACI loans:
1-4 single family residential	$	436,051	$	14,126	$	2,549	$	17,574	$	470,300	$	500,272	$	13,524	$	2,990	$	15,562	$	532,348
Home equity loans and lines of credit	4,876		89		40		635		5,640		3,460		148		23		263		3,894
	$	440,927	$	14,215	$	2,589	$	18,209	$	475,940	$	503,732	$	13,672	$	3,013	$	15,825	$	536,242

1-4 single family residential and home equity ACI loans that are contractually delinquent by more than 90 days and accounted for in pools that are on accrual status because discount continues to be accreted totaled $18 million and $16 million at September 30, 2017 and December 31, 2016, respectively.

Foreclosure of residential real estate

The carrying amount of foreclosed residential real estate properties included in "Other assets" in the accompanying consolidated balance sheets, all of which were covered, totaled $4 million and $5 million at September 30, 2017 and December 31, 2016, respectively. The recorded investment in residential mortgage loans in the process of foreclosure totaled $13 million and $8 million at September 30, 2017 and December 31, 2016, respectively, substantially all of which were covered loans.

Troubled debt restructurings

The following table summarizes loans that were modified in TDRs during the periods indicated, as well as loans modified during the twelve months preceding September 30, 2017 and 2016, that experienced payment defaults during the periods indicated (dollars in thousands):

	Three Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	—	$	—	2	$	269	—	$	—	—	$	—
Owner occupied commercial real estate	—	—		—	—		1	491		—	—
Commercial and industrial
Taxi medallion loans	15	5,439		6	2,105		18	29,854		8	4,104
Other commercial and industrial	1	978		—	—		2	1,646		—
Commercial lending subsidiaries	—	—		—	—		5	4,433		1	3,500
	16	$	6,417	8	$	2,374	26	$	36,424	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	—	$	—	1	$	70	10	$	1,671	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

	Nine Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	4	$	351	2	$	269	1	$	107	—	$	—
Non-owner occupied commercial real estate	1	5,389		—	—		—	—		—	—
Owner occupied commercial real estate	2	4,522		—	—		3	5,225		—	—
Commercial and industrial
Taxi medallion loans	97	48,692		8	3,509		58	57,341		8	4,104
Other commercial and industrial	14	20,860		—	—		7	21,422		1	3,500
Commercial lending subsidiaries	1	12,810		—	—		6	7,933		—	—
	119	$	92,624	10	$	3,778	75	$	92,028	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	5	$	939	1	$	70	16	$	2,293	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

Modifications during the three and nine months ended September 30, 2017 and 2016 included interest rate reductions, restructuring of the amount and timing of required periodic payments, extensions of maturity and covenant waivers. Included in TDRs are residential loans to borrowers who have not reaffirmed their debt discharged in Chapter 7 bankruptcy. The total amount of such loans is not material. Modified ACI loans accounted for in pools are not considered TDRs, are not separated from the pools and are not classified as impaired loans.

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FDIC Indemnification Asset

9 Months Ended

Sep. 30, 2017

FDIC Indemnification Asset [Abstract]

FDIC Indemnification Asset

FDIC Indemnification Asset

When the Company recognizes gains or losses related to covered assets in its consolidated financial statements, changes in the estimated amount recoverable from the FDIC under the Loss Sharing Agreements with respect to those gains or losses are also reflected in the consolidated financial statements. Covered loans may be resolved through prepayment, short sale of the underlying collateral, foreclosure, sale of the loans or charge-off. For loans resolved through prepayment, short sale or foreclosure, the difference between consideration received in satisfaction of the loans and the carrying value of the loans is recognized in the consolidated statement of income line item “Income from resolution of covered assets, net.” Losses from the resolution of covered loans increase the amount recoverable from the FDIC under the Loss Sharing Agreements. Gains from the resolution of covered loans reduce the amount recoverable from the FDIC under the Loss Sharing Agreements. Similarly, differences in proceeds received on the sale of covered OREO and covered loans and their carrying amounts result in gains or losses and reduce or increase the amount recoverable from the FDIC under the Loss Sharing Agreements. Increases in valuation allowances or impairment charges related to covered assets also increase the amount estimated to be recoverable from the FDIC. These additions to or reductions in amounts recoverable from the FDIC related to transactions in the covered assets are recorded in the consolidated statement of income line item “Net gain (loss) on FDIC indemnification” and reflected as corresponding increases or decreases in the FDIC indemnification asset.

In addition, through June 30, 2017, recoveries of previously indemnified losses on assets that were formerly covered under the Commercial Shared-Loss Agreement resulted in reimbursements due to the FDIC. These transactions are included in the tables below. Amounts payable to the FDIC resulting from these transactions are recognized in other liabilities in the accompanying consolidated balance sheet at December 31, 2016.

The following tables summarize the components of the gains and losses associated with covered assets, along with the related additions to or reductions in the amounts recoverable from the FDIC under the Loss Sharing Agreements, as reflected in the consolidated statements of income for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Gain on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(261	)	$	215		$	(46	)	$	445		$	(368	)	$	77
Income from resolution of covered assets, net	6,400			(5,082		)	1,318			8,883			(7,106		)	1,777
Loss on sale of covered loans	—			—			—			(10,033		)	8,026			(2,007		)
Loss on covered OREO	(35		)	29			(6		)	(552		)	441			(111		)
	$	6,104		$	(4,838	)	$	1,266		$	(1,257	)	$	993		$	(264	)

	Nine Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(2,693	)	$	2,095		$	(598	)	$	1,119		$	(1,007	)	$	112
Income from resolution of covered assets, net	22,066			(17,591		)	4,475			26,426			(21,140		)	5,286
Loss on sale of covered loans	(1,582		)	1,266			(316		)	(14,895		)	11,958			(2,937		)
Loss on covered OREO	(65		)	56			(9		)	(957		)	779			(178		)
	$	17,726		$	(14,174	)	$	3,552		$	11,693		$	(9,410	)	$	2,283

Changes in the FDIC indemnification asset and in the liability to the FDIC for recoveries related to assets previously covered under the Commercial Shared-Loss Agreement for the nine months ended September 30, 2017 and the year ended December 31, 2016, were as follows (in thousands): 

Balance at December 31, 2015	$	739,843
Amortization	(160,091		)
Reduction for claims filed	(46,083		)
Net loss on FDIC indemnification	(17,759		)
Balance at December 31, 2016	515,910
Amortization	(135,351		)
Reduction for claims filed	(16,768		)
Net loss on FDIC indemnification	(14,174		)
Balance at September 30, 2017	$	349,617

The balances at September 30, 2017 and December 31, 2016 are reflected in the consolidated balance sheets as follows (in thousands):

	September 30, 2017		December 31, 2016
FDIC indemnification asset	$	349,617	$	515,933
Other liabilities	—		(23		)
	$	349,617	$	515,910

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Income Taxes

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company’s effective income tax rate was 32.2% and 31.7% for the three months ended September 30, 2017 and 2016, respectively, and 31.2% and 33.2% for the nine months ended September 30, 2017 and 2016, respectively. The effective income tax rate differed from the statutory federal income tax rate of 35% in all periods due primarily to the effect of income not subject to tax, offset by state income taxes. In addition, the effective income tax rate for the three and nine months ended September 30, 2017 reflected the impact of $0.3 million and $3.2 million, respectively, in excess tax benefits resulting from activity related to vesting of share-based awards and exercise of stock options.

The Company has investments in affordable housing limited partnerships which generate federal Low Income Housing Tax Credits and other tax benefits. The balance of these investments, included in other assets in the accompanying consolidated balance sheet, was $66 million and $71 million at September 30, 2017 and December 31, 2016, respectively. Unfunded commitments for affordable housing investments, included in other liabilities in the accompanying consolidated balance sheet, were $29 million and $53 million at September 30, 2017 and December 31, 2016, respectively. The maximum exposure to loss as a result of the Company's involvement with these limited partnerships at September 30, 2017 was approximately $73 million. While the Company believes the likelihood of potential losses from these investments is remote, the maximum exposure was determined by assuming a scenario where the projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits. These investments did not have a material impact on income tax expense for the three and nine months ended September 30, 2017 and 2016.

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Derivatives and Hedging Activities

9 Months Ended

Sep. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

The Company uses interest rate swaps to manage interest rate risk related to liabilities that expose the Company to variability in cash flows due to changes in interest rates. The Company enters into LIBOR-based interest rate swaps that are designated as cash flow hedges with the objective of limiting the variability of interest payment cash flows resulting from changes in the benchmark interest rate LIBOR. Changes in the fair value of interest rate swaps designated as cash flow hedging instruments are reported in AOCI and subsequently reclassified into interest expense in the same period in which the related interest on the floating-rate debt obligations affects earnings.

The Company also enters into interest rate derivative contracts with certain of its commercial borrowers to enable those borrowers to manage their exposure to interest rate fluctuations. To mitigate interest rate risk associated with these derivative contracts, the Company enters into offsetting derivative contract positions with primary dealers. These interest rate derivative contracts are not designated as hedging instruments; therefore, changes in the fair value of these derivatives are recognized immediately in earnings. The impact on earnings related to changes in fair value of these derivatives for the three and nine months ended September 30, 2017 and 2016 was not material.

The Company may be exposed to credit risk in the event of non-performance by the counterparties to its interest rate derivative agreements. The Company assesses the credit risk of its financial institution counterparties by monitoring publicly available credit rating and financial information. The Company manages dealer credit risk by entering into interest rate derivatives only with primary and highly rated counterparties, the use of ISDA master agreements, central clearing mechanisms and counterparty limits. The agreements contain bilateral collateral arrangements with the amount of collateral to be posted generally governed by the settlement value of outstanding swaps. The Company manages the risk of default by its borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The Company does not currently anticipate any losses from failure of interest rate derivative counterparties to honor their obligations.

The CME amended its rules effective January 2017 to legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposures rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. The Company's clearing agent for interest rate derivative contracts centrally cleared through the CME settles the variation margin daily with the CME; therefore, those interest rate derivative contracts the Company clears through the CME are reported at a fair value of approximately zero at September 30, 2017.

The following tables set forth certain information concerning the Company’s interest rate contract derivative financial instruments and related hedged items at the dates indicated (dollars in thousands):

	September 30, 2017
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.77%	3-Month Libor	4.6	$	2,046,000	Other assets / Other liabilities	$	1,066	$	(259	)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.86%	Indexed to 1-month Libor	6.4	1,000,763		Other assets / Other liabilities	7,605		(18,311		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.86%	6.4	1,000,763		Other assets / Other liabilities	19,648		(8,491		)
Interest rate caps purchased, indexed to 1-month Libor			2.80%	1.6	145,957		Other assets	15		—
Interest rate caps sold, indexed to 1-month Libor		2.80%		1.6	145,957		Other liabilities	—		(15		)
					$	4,339,440		$	28,334	$	(27,076	)

	December 31, 2016
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.58%	3-Month Libor	3.3	$	1,715,000	Other assets / Other liabilities	$	19,648	$	(3,112	)
Pay-fixed forward-starting interest rate swaps	Variability of interest cash flows on variable rate borrowings	3.43%	3-Month Libor	10.5	300,000		Other liabilities	—		(27,866		)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.77%	Indexed to 1-month Libor	6.8	912,000		Other assets / Other liabilities	9,949		(20,383		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.77%	6.8	912,000		Other assets / Other liabilities	20,383		(9,949		)
Interest rate caps purchased, indexed to 1-month Libor			2.96%	2.3	189,057		Other assets	252		—
Interest rate caps sold, indexed to 1-month Libor		2.96%		2.3	189,057		Other liabilities	—		(252		)
					$	4,217,114		$	50,232	$	(61,562	)

The following table provides information about the amount of loss reclassified from AOCI into interest expense for the periods indicated (dollars in thousands):

	Amount of Loss Reclassified from AOCI on Derivatives
	Three Months Ended September 30,						Nine Months Ended September 30,
Derivatives in Cash Flow Hedging Relationships	2017			2016			2017			2016			Location of Loss Reclassified from AOCI into Income
Interest rate contracts	$	(2,001	)	$	(3,741	)	$	(7,463	)	$	(13,050	)	Interest expense on borrowings

During the nine months ended September 30, 2017 and 2016, no derivative positions designated as cash flow hedges were discontinued and none of the gains and losses reported in AOCI were reclassified into earnings as a result of the discontinuance of cash flow hedges or because of the early extinguishment of debt. As of September 30, 2017, the amount of loss expected to be reclassified from AOCI into earnings during the next twelve months was $6.2 million. 

Some of the Company’s ISDA master agreements with financial institution counterparties contain provisions that permit either counterparty to terminate the agreements and require settlement in the event that regulatory capital ratios fall below certain designated thresholds, upon the initiation of other defined regulatory actions or upon suspension or withdrawal of the Bank’s credit rating. Currently, there are no circumstances that would trigger these provisions of the agreements.

The Company does not offset assets and liabilities under master netting agreements for financial reporting purposes. Information on interest rate swaps subject to these agreements is as follows at the dates indicated (in thousands):

	September 30, 2017
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged			Net Amount
Derivative assets	$	8,686		$	—	$	8,686		$	(6,814	)	$	(1,539	)	$	333
Derivative liabilities	(18,570		)	—		(18,570		)	6,814			11,756			—
	$	(9,884	)	$	—	$	(9,884	)	$	—		$	10,217		$	333

	December 31, 2016
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged		Net Amount
Derivative assets	$	29,849		$	—	$	29,849		$	(27,485	)	$	—	$	2,364
Derivative liabilities	(51,362		)	—		(51,362		)	27,485			23,796		(81		)
	$	(21,513	)	$	—	$	(21,513	)	$	—		$	23,796	$	2,283

The difference between the amounts reported for interest rate swaps subject to master netting agreements and the total fair value of interest rate contract derivative financial instruments reported in the consolidated balance sheets is related to interest rate contracts entered into with borrowers not subject to master netting agreements.

At September 30, 2017, the Company had pledged investment securities available for sale with a carrying amount of $40 million and cash on deposit of $2 million as collateral for interest rate swaps in a liability position. $2 million of financial collateral was pledged by counterparties to the Company for interest rate swaps in an asset position. The amount of collateral required to be posted varies based on the settlement value of outstanding swaps and in some cases may include initial margin requirements.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Accumulated Other Comprehensive Income

Changes in AOCI are summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	14,144		$	(5,587	)	$	8,557		$	5,316		$	(2,100	)	$	3,216
Amounts reclassified to gain on investment securities available for sale, net	(26,931		)	10,638			(16,293		)	(3,008		)	1,188			(1,820		)
Net change in unrealized gains on investment securities available for sale	(12,787		)	5,051			(7,736		)	2,308			(912		)	1,396
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period	(281		)	111			(170		)	8,356			(3,301		)	5,055
Amounts reclassified to interest expense on borrowings	2,001			(791		)	1,210			3,741			(1,477		)	2,264
Net change in unrealized losses on derivative instruments	1,720			(680		)	1,040			12,097			(4,778		)	7,319
Other comprehensive income (loss)	$	(11,067	)	$	4,371		$	(6,696	)	$	14,405		$	(5,690	)	$	8,715

	Nine Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	54,258		$	(21,432	)	$	32,826		$	88,413		$	(34,923	)	$	53,490
Amounts reclassified to gain on investment securities available for sale, net	(29,194		)	11,532			(17,662		)	(10,065		)	3,975			(6,090		)
Net change in unrealized gains on investment securities available for sale	25,064			(9,900		)	15,164			78,348			(30,948		)	47,400
Unrealized losses on derivative instruments:
Net unrealized holding loss arising during the period	(13,780		)	5,443			(8,337		)	(57,765		)	22,817			(34,948		)
Amounts reclassified to interest expense on borrowings	7,463			(2,948		)	4,515			13,050			(5,154		)	7,896
Net change in unrealized losses on derivative instruments	(6,317		)	2,495			(3,822		)	(44,715		)	17,663			(27,052		)
Other comprehensive income	$	18,747		$	(7,405	)	$	11,342		$	33,633		$	(13,285	)	$	20,348

The categories of AOCI and changes therein are presented below for the periods indicated (in thousands):

	Unrealized Gains on Investment Securities Available for Sale		Unrealized Losses on Derivative Instruments			Total
Balance at December 31, 2016	$	47,057	$	(5,810	)	$	41,247
Other comprehensive income	15,164		(3,822		)	11,342
Balance at September 30, 2017	$	62,221	$	(9,632	)	$	52,589
Balance at December 31, 2015	$	41,535	$	(19,353	)	$	22,182
Other comprehensive income	47,400		(27,052		)	20,348
Balance at September 30, 2016	$	88,935	$	(46,405	)	$	42,530

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Equity Based Compensation

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity Based Compensation

Equity Based and Other Compensation Plans

Share Awards

Unvested share awards

During the nine months ended September 30, 2017, the Company granted 618,306 unvested share awards under the 2014 Plan. All of the shares vest in equal annual installments over a period of three years from the date of grant. The shares granted were valued at the closing price of the Company’s common stock on the date of grant, ranging from $33.21 to $40.84, and had an aggregate fair value of $24.9 million. The total unrecognized compensation cost of $26.7 million for all unvested share awards outstanding at September 30, 2017 will be recognized over a weighted average remaining period of 1.98 years.

During the nine months ended September 30, 2016, the Company granted 644,888 unvested share awards under the 2014 Plan. All of the shares vest in equal annual installments over a period of three years from the date of grant. The shares granted were valued at the closing price of the Company’s common stock on the date of grant, ranging from $29.78 to $33.76, and had an aggregate fair value of $20.0 million.

Executive share-based awards

Certain of the Company's executives are eligible to receive annual awards of RSUs and PSUs (collectively, the "share units"). Annual awards of RSUs represent a fixed number of shares and vest in equal tranches overthree years. PSUs are initially granted based on a target value. The number of PSUs that ultimately vest at the end of a three-year performance measurement period will be based on the achievement of performance criteria pre-established by the Compensation Committee of the Board of Directors. The performance criteria established for the PSUs granted in 2017 and 2016 include both performance and market conditions. Upon vesting, the share units will be converted to common stock on a one-for-one basis, or may be settled in cash at the Company's option. The share units will accumulate dividends declared on the Company's common stock from the date of grant to be paid subsequent to vesting.

The first tranche of RSUs granted vested on December 31, 2016. The Company cash settled these share units in the amount of $0.8 million during the first quarter of 2017. As a result of this cash settlement, all RSUs and PSUs have been determined to be liability instruments and will be remeasured at fair value each reporting period until the awards are settled. The RSUs are valued based on the closing price of the Company's common stock at the reporting date. The PSUs are valued based on the closing price of the Company's common stock at the reporting date net of a discount related to any applicable market conditions, considering the probability of meeting the defined performance conditions. Compensation cost related to PSUs is recognized during the performance period based on the probable outcome of the respective performance conditions.

During the nine months ended September 30, 2017, 47,848 RSUs and 47,848 PSUs were granted. During the nine months ended September 30, 2016, 57,873 RSUs and 57,873 PSUs were granted. The total liability for the share units was $2.6 million at September 30, 2017. The total unrecognized compensation cost of $5.3 million for these share units at September 30, 2017 will be recognized over a weighted average remaining period of 2.18 years.

The 618,306 unvested share awards granted during the nine months ended September 30, 2017, as discussed above, included 25,321 unvested share awards granted to certain of the Company's executives based on the achievement of performance criteria pre-established by the Compensation Committee for the year ended December 31, 2016.

Incentiveawards

Beginning in 2017, the Company's annual incentive compensation arrangements provide for settlement through a combination of cash payments and unvested share awards following the end of the annual performance period. The dollar value of share awards to be granted is based on the achievement of performance criteria established in the incentive arrangements. The number of shares of common stock to be awarded is variable based on the closing price of the Company's stock on the date of grant; therefore, these awards are initially classified as liability instruments, with compensation cost recognized from the beginning of the performance period. The awards vest in equal installments over a period ofthree yearsfrom the date of grant.The total liability for the incentive share awards was $1.2 million at September 30, 2017. The total unrecognized compensation cost of $5.3 million for these share awards at September 30, 2017 will be recognized over a weighted average remaining period of 3.25 years. The accrued liability and unrecognized compensation cost are based on management's current estimate of the likely outcome of the performance criteria established in the incentive arrangements and may differ from actual results.

Option Awards

A summary of activity related to stock option awards for the nine months ended September 30, 2017 follows:

	Number of Option Awards		Weighted Average Exercise Price
Option awards outstanding, December 31, 2016	3,602,076		$	26.74
Exercised	(2,304,108	)	26.70
Option awards outstanding and exercisable, September 30, 2017	1,297,968		$	26.81

Activity related to stock option awards for the nine months ended September 30, 2016 was not significant. The intrinsic value of options exercised and the related tax benefit was $25.3 million and $3.8 million, respectively, during the nine months ended September 30, 2017.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Assets and liabilities measured at fair value on a recurring basis 

Following is a description of the methodologies used to estimate the fair values of assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy in which those measurements are typically classified.

Investment securities available for sale—Fair value measurements are based on quoted prices in active markets when available; these measurements are classified within level 1 of the fair value hierarchy. These securities typically include U.S. Treasury securities and certain preferred stocks. If quoted prices in active markets are not available, fair values are estimated using quoted prices of securities with similar characteristics, quoted prices of identical securities in less active markets, discounted cash flow techniques, or matrix pricing models. These securities are generally classified within level 2 of the fair value hierarchy and include U.S. Government agency securities, U.S. Government agency and sponsored enterprise MBS, preferred stock investments for which level 1 valuations are not available, corporate debt securities, non-mortgage asset-backed securities, single family rental real estate-backed securities, certain private label residential MBS and CMOs, private label commercial MBS, collateralized loan obligations and state and municipal obligations. Pricing of these securities is generally primarily spread driven. Observable inputs that may impact the valuation of these securities include benchmark yield curves, credit spreads, reported trades, dealer quotes, bids, issuer spreads, current rating, historical constant prepayment rates, historical voluntary prepayment rates, structural and waterfall features of individual securities, published collateral data, and for certain securities, historical constant default rates and default severities. Investment securities available for sale generally classified within level 3 of the fair value hierarchy include certain private label MBS and trust preferred securities. The Company typically values these securities using third-party proprietary pricing models, primarily discounted cash flow valuation techniques, which incorporate both observable and unobservable inputs. Unobservable inputs that may impact the valuation of these securities include risk adjusted discount rates, projected prepayment rates, projected default rates and projected loss severity.

The Company uses third-party pricing services in determining fair value measurements for investment securities. To obtain an understanding of the methodologies and assumptions used, management reviews written documentation provided by the pricing services, conducts interviews with valuation desk personnel and reviews model results and detailed assumptions used to value selected securities as considered necessary. Management has established a robust price challenge process that includes a review by the treasury front office of all prices provided on a monthly basis. Any price evidencing unexpected month over month fluctuations or deviations from expectations is challenged. If considered necessary to resolve any discrepancies, a price will be obtained from an additional independent valuation source. The Company does not typically adjust the prices provided, other than through this established challenge process. The results of price challenges are subject to review by executive management. The Company has also established a quarterly process whereby prices provided by its primary pricing service for a sample of securities are validated. Any price discrepancies are resolved based on careful consideration of the assumptions and inputs employed by each of the pricing sources.

Servicing rights—Commercial servicing rights are valued using a discounted cash flow methodology incorporating contractually specified servicing fees and market based assumptions about prepayments, discount rates, default rates and costs of servicing. Prepayment and default assumptions are based on historical industry data for loans with similar characteristics. Assumptions about costs of servicing are based on market convention. Discount rates are based on rates of return implied by observed trades of underlying loans in the secondary market. Fair value of residential MSRs is estimated using a discounted cash flow technique that incorporates market‑based assumptions including estimated prepayment speeds, contractual servicing fees, cost to service, discount rates, escrow account earnings, ancillary income, and estimated defaults. Due to the nature of the valuation inputs and the limited availability of market pricing, servicing rights are classified as level 3.

Derivative financial instruments—Fair values of interest rate swaps are determined using widely accepted discounted cash flow modeling techniques. These discounted cash flow models use projections of future cash payments and receipts that are discounted at mid-market rates. Observable inputs that may impact the valuation of these instruments include LIBOR swap rates and LIBOR forward yield curves. These fair value measurements are generally classified within level 2 of the fair value hierarchy.

The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands):

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	24,957	$	—	$	—	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	—		2,348,687		—		2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	—		139,220		—		139,220
Private label residential MBS and CMOs	—		467,061		60,797		527,858
Private label commercial MBS	—		1,153,601		—		1,153,601
Single family rental real estate-backed securities	—		572,948		—		572,948
Collateralized loan obligations	—		700,319		—		700,319
Non-mortgage asset-backed securities	—		82,637		—		82,637
Preferred stocks	70,038		678		—		70,716
State and municipal obligations	—		677,015		—		677,015
SBA securities	—		586,675		—		586,675
Other debt securities	—		3,815		5,024		8,839
Servicing rights	—		—		30,136		30,136
Derivative assets	—		28,334		—		28,334
Total assets at fair value	$	94,995	$	6,760,990	$	95,957	$	6,951,942
Derivative liabilities	$	—	$	27,076	$	—	$	27,076
Total liabilities at fair value	$	—	$	27,076	$	—	$	27,076

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	5,005	$	—	$	—	$	5,005
U.S. Government agency and sponsored enterprise residential MBS	—		1,527,242		—		1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	—		124,586		—		124,586
Private label residential MBS and CMOs	—		254,488		120,610		375,098
Private label commercial MBS	—		1,187,624		—		1,187,624
Single family rental real estate-backed securities	—		861,251		—		861,251
Collateralized loan obligations	—		487,296		—		487,296
Non-mortgage asset-backed securities	—		186,736		—		186,736
Preferred stocks	86,890		1,313		—		88,203
State and municipal obligations	—		698,546		—		698,546
SBA securities	—		523,906		—		523,906
Other debt securities	—		3,519		4,572		8,091
Servicing rights	—		—		27,159		27,159
Derivative assets	—		50,232		—		50,232
Total assets at fair value	$	91,895	$	5,906,739	$	152,341	$	6,150,975
Derivative liabilities	$	—	$	61,562	$	—	$	61,562
Total liabilities at fair value	$	—	$	61,562	$	—	$	61,562

There were no transfers of financial assets between levels of the fair value hierarchy during the nine months ended September 30, 2017.

The following table reconciles changes in the fair value of assets and liabilities measured at fair value on a recurring basis and classified in level 3 of the fair value hierarchy during the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	108,790		$	4,923		$	29,128		$	131,156		$	4,292		$	24,891
Gains (losses) for the period included in:
Net income	24,146			—			(1,330		)	—			—			(2,369		)
Other comprehensive income	(24,668		)	101			—			337			22			—
Discount accretion	2,332			59			—			1,404			36			—
Purchases or additions	—			—			2,338			—			—			2,194
Sales	(40,732		)	—			—			—			—			—
Settlements	(9,071		)	(59		)	—			(5,594		)	(26		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

	Nine Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	120,610		$	4,572		$	27,159		$	140,883		$	4,532		$	20,017
Gains (losses) for the period included in:
Net income	24,146			—			(4,273		)	—			—			(5,983		)
Other comprehensive income	(25,651		)	469			—			(190		)	(245		)	—
Discount accretion	5,208			248			—			4,485			88			—
Purchases or additions	—			—			7,250			—			—			10,682
Sales	(40,732		)	—			—			—			—			—
Settlements	(22,784		)	(265		)	—			(17,875		)	(51		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

Gains on private label residential MBS recognized in net income during the three and nine months ended September 30, 2017 are included in the consolidated statement of income line item "Gain on investment securities available for sale, net." Changes in the fair value of servicing rights are included in the consolidated statement of income line item “Other non-interest income.” Changes in fair value include changes due to valuation assumptions, primarily discount rates and prepayment speeds, as well as other changes such as runoff and the passage of time. The amount of net unrealized losses included in earnings for the nine months ended September 30, 2017 and 2016 that were related to servicing rights held at September 30, 2017 and 2016 totaled approximately $0.8 million and $1.7 million, respectively, and were primarily due to changes in discount rates and prepayment speeds.

Securities for which fair value measurements are categorized in level 3 of the fair value hierarchy at September 30, 2017 consisted of pooled trust preferred securities with a fair value of $5 million and private label residential MBS and CMOs with a fair value of $61 million. The trust preferred securities are not material to the Company’s financial statements. Private label residential MBS consisted of senior and mezzanine tranches collateralized by prime fixed rate and hybrid 1-4 single family residential mortgages originated before 2005, some of which contain option-arm features. Substantially all of these securities have variable rate coupons. Weighted average subordination levels at September 30, 2017 were 16.4% and 10.4% for investment grade and non-investment grade securities, respectively.

The following table provides information about the valuation techniques and unobservable inputs used in the valuation of private label residential MBS and CMOs falling within level 3 of the fair value hierarchy as of September 30, 2017 (dollars in thousands): 

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Investment grade	$	34,245	Discounted cash flow	Voluntary prepayment rate	6.60% - 25.60% (15.92%)
				Probability of default	0.13% - 4.04% (1.36%)
				Loss severity	15.00% - 75.00% (33.10%)
				Discount rate	1.88% - 7.43% (3.48%)
Non-investment grade	$	26,552	Discounted cash flow	Voluntary prepayment rate	1.10% - 29.30% (15.35%)
				Probability of default	0.13% - 4.15% (1.51%)
				Loss severity	15.00% - 95.00% (32.96%)
				Discount rate	1.35% - 9.43% (5.89%)

The significant unobservable inputs impacting the fair value measurement of private label residential MBS and CMOs include voluntary prepayment rates, probability of default, loss severity given default and discount rates. Generally, increases in probability of default, loss severity or discount rates would result in a lower fair value measurement. Alternatively, decreases in probability of default, loss severity or discount rates would result in a higher fair value measurement. For securities with less favorable credit characteristics, decreases in voluntary prepayment speeds may be interpreted as a deterioration in the overall credit quality of the underlying collateral and as such, lead to lower fair value measurements. The fair value measurements of those securities with higher levels of subordination will be less sensitive to changes in these unobservable inputs other than discount rates, while securities with lower levels of subordination will show a higher degree of sensitivity to changes in these unobservable inputs other than discount rates. Generally, a change in the assumption used for probability of default is accompanied by a directionally similar change in the assumption used for loss severity given default and a directionally opposite change in the assumption used for voluntary prepayment rate. 

The following table provides information about the valuation techniques and significant unobservable inputs used in the valuation of servicing rights as of September 30, 2017 (dollars in thousands):

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Residential MSRs	$	18,006	Discounted cash flow	Prepayment rate	2.76% - 29.96% (12.88%)
				Discount rate	9.50% - 9.58% (9.51%)
Commercial servicing rights	$	12,130	Discounted cash flow	Prepayment rate	0.09% - 9.99% (7.81%)
				Discount rate	8.12% - 14.57% (12.48%)

Increases in prepayment rates or discount rates would result in lower fair value measurements and decreases in prepayment rates or discount rates would result in higher fair value measurements. Although the prepayment rate and the discount rate are not directly interrelated, they generally move in opposite directions.

Assets and liabilities measured at fair value on a non-recurring basis

Following is a description of the methodologies used to estimate the fair values of assets and liabilities that may be measured at fair value on a non-recurring basis, and the level within the fair value hierarchy in which those measurements are typically classified. 

Impaired loans, OREOand other repossessed assets—The carrying amount of collateral dependent impaired loans is typically based on the fair value of the underlying collateral, which may be real estate, taxi medallions, or other business assets, less estimated costs to sell. The carrying value of OREO is initially measured based on the fair value of the real estate acquired in foreclosure and subsequently adjusted to the lower of cost or estimated fair value, less estimated cost to sell. Fair values of real estate collateral and OREO are typically based on third-party real estate appraisals which utilize market and income approaches to valuation incorporating both observable and unobservable inputs. When current appraisals are not available, the Company may use brokers’ price opinions, home price indices or other available information about changes in real estate market conditions to adjust the latest appraised value available. These adjustments to appraised values may be subjective and involve significant management judgment. The fair value of repossessed assets, other than taxi medallions, or collateral consisting of other business assets may be based on third-party appraisals or internal analyses that use market approaches to valuation incorporating primarily unobservable inputs.

The fair value of New York City taxi medallions is based primarily on an internal analysis that utilizes an income approach to valuation. This analysis utilizes data obtained from the NYTLC about the fleet in general and in some cases, our portfolio specifically, and management's assumptions, based on external data when available, about revenues, costs and expenses, to estimate the value that can reasonably be supported by the cash flow generating capacity of a medallion. We further discount the results of this analysis in recognition of estimated selling costs and declining trends in medallion values. We also consider prices of recent medallion transfers as published by the NYTLC; however, the market for taxi medallions is illiquid and information about the circumstances underlying observed transfers is unavailable, therefore, information about recent transfers is not considered sufficient to establish a reliable estimate of value. The Company's medallion valuations fall within the range of published transfer prices over the last six months. Taxi medallions in municipalities other than New York City are generally valued based on published information about recent transfer prices; the valuation of these assets did not have a material impact on the Company's consolidated financial statements for any period presented as the taxi medallion portfolio is heavily concentrated in New York City.

Fair value measurements related to collateral dependent impaired loans, OREO and other repossessed assets are classified within level 3 of the fair value hierarchy.

The following tables present the carrying value of assets for which non-recurring changes in fair value have been recorded for the periods indicated (in thousands): 

	September 30, 2017								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2017			Nine Months Ended   September 30, 2017
OREO and repossessed assets	$	—	$	—	$	5,520	$	5,520	$	(515	)	$	(1,534	)
Impaired loans	$	—	$	—	$	107,173	$	107,173	$	(35,106	)	$	(58,073	)

	September 30, 2016								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2016			Nine Months Ended   September 30, 2016
OREO and repossessed assets	$	—	$	—	$	7,923	$	7,923	$	(372	)	$	740
Impaired loans	$	—	$	—	$	59,678	$	59,678	$	(10,623	)	$	(18,873	)

Included in the tables above are impaired taxi medallion loans with carrying values of $90.1 million and $39.6 million at September 30, 2017 and September 30, 2016, respectively, the majority of which were in New York City. Losses of $54.3 million and $10.2 million were recognized on impaired taxi medallion loans during the nine months ended September 30, 2017 and 2016, respectively.

Decreases in the value of medallions are largely driven by decreases in revenues generated from the medallions. Inputs that had the most significant impact on the valuation of New York City taxi medallions at September 30, 2017 are presented below:

	Average Amount
Average fare per trip	$16.12
Number of trips per shift	15.4
Days worked per month	25.6

The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands):

		September 30, 2017				December 31, 2016
	Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Cash and cash equivalents	1	$	292,601	$	292,601	$	448,313	$	448,313
Investment securities available for sale	1/2/3	6,893,472		6,893,472		6,073,584		6,073,584
Investment securities held to maturity	3	10,000		10,000		10,000		10,000
Non-marketable equity securities	2	270,239		270,239		284,272		284,272
Loans held for sale	2	31,507		35,113		41,198		45,833
Loans:
Covered	3	533,128		997,376		611,942		1,200,291
Non-covered	3	19,918,729		19,906,579		18,630,499		18,713,495
FDIC Indemnification asset	3	349,617		168,415		515,933		256,691
Derivative assets	2	28,334		28,334		50,232		50,232
Liabilities:
Demand, savings and money market deposits	2	$	14,889,543	$	14,889,543	$	13,735,248	$	13,735,248
Time deposits	2	6,333,701		6,335,324		5,755,642		5,759,787
FHLB advances	2	4,871,000		4,876,017		5,239,348		5,244,188
Notes and other borrowings	2	402,828		427,748		402,809		403,733
Derivative liabilities	2	27,076		27,076		61,562		61,562

The following methods and assumptions were used to estimate the fair value of each class of financial instruments, other than those described above:

Cash and cash equivalents

The carrying value of cash and cash equivalents approximates fair value due to their short-term nature and generally negligible credit risk.

Investment securities held to maturity

Investment securities held to maturity includes one bond issued by the State of Israel, with fair value obtained from a third party pricing service.

Non-marketable equity securities

Non-marketable equity securities include FHLB and FRB stock. There is no market for these securities, which can be liquidated only by redemption by the issuer. These securities are valued at par, which has historically represented the redemption price and is therefore considered to approximate fair value.

Loans held for sale

The fair value of the portion of small business loans guaranteed by U.S. Government agencies being held for sale is estimated using pricing on recent sales of similar loans by the Company in active markets.

Covered loans

Fair values are estimated based on a discounted cash flow analysis. Estimates of future cash flows incorporate various factors that may include the type of loan and related collateral, estimated collateral values, estimated voluntary prepayment rates, estimated default probability and loss severity given default, whether the interest rate is fixed or variable, term of loan and whether or not the loan is amortizing. The fair values of loans accounted for in pools are estimated on a pool basis. Discount rates for residential loans are based on observable fixed income market data for products with similar credit characteristics.

Non-covered loans

Fair values of residential loans are estimated using a discounted cash flow analysis with discount rates based on yields at which similar loans are trading in the secondary market, which reflect assumptions about credit risk. Fair values of commercial and consumer loans are estimated using a discounted cash flow analysis with discount rates based on interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. The ALLL related to commercial and consumer loans is considered a reasonable estimate of the required adjustment to fair value to reflect the impact of credit risk. This estimate may not represent an exit value as defined in ASC 820.

FDIC indemnification asset

The fair value of the FDIC indemnification asset has been estimated using a discounted cash flow technique incorporating assumptions about the timing and amount of future projected cash payments from the FDIC related to the resolution of covered assets. The factors that impact estimates of future cash flows are similar to those impacting estimated cash flows from covered loans. The discount rate is determined by adjusting the risk free rate to incorporate uncertainty in the estimate of the timing and amount of future cash flows and illiquidity.

Deposits

The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date. The fair value of time deposits is estimated using a discounted cash flow technique based on rates currently offered for deposits of similar remaining maturities.

FHLB advances

Fair value is estimated by discounting contractual future cash flows using the current rate at which borrowings with similar terms and remaining maturities could be obtained by the Company.

Senior notes

Fair value is estimated based on quoted prices of identical securities in less active markets.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

The Company issues off-balance sheet financial instruments to meet the financing needs of its customers. These financial instruments include commitments to fund loans, unfunded commitments under existing lines of credit, and commercial and standby letters of credit. These commitments expose the Company to varying degrees of credit and market risk which are essentially the same as those involved in extending loans to customers, and are subject to the same credit policies used in underwriting loans. Collateral may be obtained based on the Company’s credit evaluation of the counterparty. The Company’s maximum exposure to credit loss is represented by the contractual amount of these commitments. Unfunded commitments under lines of credit include $10.0 million available under non-cancellable commitments in effect at the date of the FSB Acquisition, which are covered under the Single Family Shared-Loss Agreement if prescribed conditions are met.

Commitments to fund loans

These are agreements to lend funds to customers as long as there is no violation of any condition established in the contract. Commitments to fund loans generally have fixed expiration dates or other termination clauses and may require payment of a fee. Many of these commitments are expected to expire without being funded and, therefore, the total commitment amounts do not necessarily represent future liquidity requirements. 

Unfunded commitments under lines of credit

Unfunded commitments under lines of credit include commercial, commercial real estate, home equity and consumer lines of credit to existing customers. Some of these commitments may mature without being fully funded. 

Commercial and standby letters of credit

Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These letters of credit are primarily issued to support trade transactions or guarantee arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. 

Total lending related commitments outstanding at September 30, 2017 were as follows (in thousands): 

Commitments to fund loans	$	417,943
Commitments to purchase loans	287,302
Unfunded commitments under lines of credit	2,361,922
Commercial and standby letters of credit	83,141
	$	3,150,308

Legal Proceedings

The Company is involved as plaintiff or defendant in various legal actions arising in the normal course of business. In the opinion of management, based upon advice of legal counsel, the likelihood is remote that the impact of these proceedings, either individually or in the aggregate, would be material to the Company’s consolidated financial position, results of operations or cash flows.

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Basis of Presentation and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Basis of Presentation and Summary of Significant Accounting Policies

BankUnited, Inc. is a national bank holding company with one wholly-owned subsidiary, BankUnited, collectively, the Company. BankUnited, a national banking association headquartered in Miami Lakes, Florida, provides a full range of banking and related services to individual and corporate customers through 90 banking centers located in 15 Florida counties and 6 banking centers located in the New York metropolitan area at September 30, 2017. The Bank also offers certain commercial lending and deposit products through national platforms.

In connection with the FSB Acquisition, BankUnited entered into two loss sharing agreements with the FDIC. The Loss Sharing Agreements consist of the Single Family Shared-Loss Agreement and the Commercial Shared-Loss Agreement. Assets covered by the Loss Sharing Agreements are referred to as covered assets or, in certain cases, covered loans. The Single Family Shared-Loss Agreement provides for FDIC loss sharing and the Bank’s reimbursement for recoveries to the FDIC through May 21, 2019 for single family residential loans and OREO. Loss sharing under the Commercial Shared-Loss Agreement terminated on May 21, 2014. The Commercial Shared-Loss Agreement continued to provide for the Bank’s reimbursement of recoveries to the FDIC through June 30, 2017 for all other covered assets, including commercial real estate, commercial and industrial and consumer loans, certain investment securities and commercial OREO. Pursuant to the terms of the Loss Sharing Agreements, the covered assets are subject to a stated loss threshold whereby the FDIC will reimburse BankUnited for 80% of losses related to the covered assets up to $4.0 billion and 95% of losses in excess of this amount, beginning with the first dollar of loss incurred.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X of the SEC. Accordingly, they do not include all of the information and footnotes required for a fair presentation of financial position, results of operations and cash flows in conformity with GAAP and should be read in conjunction with the Company’s consolidated financial statements and the notes thereto appearing in BKU’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the SEC. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected in future periods. 

Certain amounts presented for prior periods have been reclassified to conform to the current period presentation.

Accounting Estimates

In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates.

Significant estimates include the ALLL, the amount and timing of expected cash flows from covered assets and the FDIC indemnification asset, and the fair values of investment securities and other financial instruments. Management has used information provided by third party valuation specialists to assist in the determination of the fair values of investment securities.

New Accounting Pronouncements Adopted

ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments in this ASU simplified several aspects of the accounting for share-based payment transactions. The Company adopted this ASU in the first quarter of 2017. The amendment requiring the recognition of excess tax benefits and deficiencies as income tax benefit or expense in the income statement as opposed to being recognized as additional paid-in-capital was applied prospectively and resulted in the recognition of $0.3 million and $3.2 million in excess tax benefits in the consolidated statement of income line item "Provision for income taxes" for the three and nine months ended September 30, 2017, increasing net income by the same amount in each period. The adoption had no impact on basic and diluted earnings per share for the three months ended September 30, 2017 and increased basic and diluted earnings per share by $0.02 and $0.03, respectively, for the nine months ended September 30, 2017. The Company retrospectively adopted the amendments requiring the classification of excess tax benefits and deficiencies with other income tax cash flows as operating activities and cash paid when directly withholding shares as financing activities in the accompanying consolidated statements of cash flows; the impact was not material. The Company elected to continue its practice of estimating the number of awards expected to vest in determining the amount of compensation cost to be recognized related to share based payment transactions.

ASU No. 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The amendments in this ASU require certain premiums on callable debt securities to be amortized to the earliest call date. The amortization period for callable debt securities purchased as a discount will not be impacted. The Company early-adopted this ASU in the first quarter of 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

ASU No. 2016-06, Derivatives and Hedging (Topic 815):Contingent Put and Call Options in Debt Instruments. The amendments in this ASU clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. A company performing the assessment under these amendments is required to assess the embedded call (put) options solely in accordance with a four-step decision sequence, without also considering whether the contingency is related to interest rates or credit risks. The Company adopted this ASU in the first quarter of 2017 with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, an amendment to simplify the subsequent quantitative measurement of goodwill by eliminating step two from the goodwill impairment test. As amended, an entity recognizes an impairment charge for the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform the qualitative test for a reporting unit to determine if the quantitative impairment test is necessary. The Company early adopted this ASU in the third quarter of 2017, concurrent with performance of its annual goodwill impairment test, with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness after initial qualification. For qualifying cash flow and net investment hedges, this means that the entire change in the fair value of the hedging instrument included in the assessment of hedge effectiveness will be recorded in other comprehensive income (OCI), and amounts deferred in OCI will be reclassified to earnings in the same income statement line item that is used to present the earnings effect of the hedged item when the hedged item affects earnings. The Company will have until the end of the first quarter in which a hedge is designated to perform an initial assessment of a hedge’s effectiveness. The new guidance also permits a qualitative effectiveness assessment for certain hedges instead of a quantitative test, such as a regression analysis, if the company can reasonably support an expectation of high effectiveness throughout the term of the hedge. In addition, in order to better align an entity's risk management activities and financial reporting for hedging relationships, the ASU allows for more hedging strategies to be eligible for hedge accounting. From a disclosure standpoint, to help users of the financial statements better understand the effects of hedge accounting, the guidance requires revised tabular disclosures that focus on the effect of hedge accounting by income statement line, and eliminates today’s requirement to disclose hedge ineffectiveness because this amount is no longer separately measured. The Company early adopted this ASU during the quarter ended September 30, 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

Recent Accounting Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which will supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Accounting Standards Codification. The amendments in this update affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets unless those contracts, including leases and insurance contracts, are within the scope of other standards. The amendments establish a core principle requiring the recognition of revenue to depict the transfer of goods or services to customers in an amount reflecting the consideration to which the entity expects to be entitled in exchange for such goods or services. The amendments also require expanded disclosures concerning the nature, amount, timing and uncertainty of revenues and cash flows arising from contracts with customers. Financial instruments and lease contracts are generally outside the scope of the ASU as are revenues that are in the scope of ASC 860 "Transfers and Servicing", ASC 460 "Guarantees" and ASC 815 "Derivatives and Hedging". The FASB has issued subsequent ASUs to clarify certain aspects of ASU 2014-09, without changing the core principle of the guidance and to defer the effective date of ASU 2014-09 to annual periods and interim periods within fiscal years beginning after December 15, 2017. Although management has not finalized its evaluation of the impact of adoption of this ASU, substantially all of the Company's revenues have historically been, and are expected to continue to be, generated from activities that are outside the scope of the ASU. Therefore, management does not expect adoption to have a material impact on the Company's consolidated financial position, results of operations or cash flows. Service charges on deposit accounts, which totaled approximately $9.8 million for the nine months ended September 30, 2017, is the most significant category of revenue identified as within the scope of the ASU; management does not expect the amount and timing of recognition of such revenue to be materially impacted by adoption, which management expects to apply using the modified retrospective approach, whereby the cumulative effect of initially applying the amendments is recognized as an adjustment to opening retained earnings at the date of adoption.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in the ASU that are expected to be most applicable to the Company (1) eliminate the available for sale classification for equity securities and require investments in equity securities (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income, provided that equity investments that do not have readily determinable fair values may be re-measured at fair value upon occurrence of an observable price change or recognition of impairment, (2) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, and (3) require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. The amendments also clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity's other deferred tax assets, which is consistent with the Company's current practice. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be adopted by means of a cumulative-effect adjustment to the balance sheet, except for amendments related to equity securities without readily determinable fair values, which will be applied prospectively. Although management has not finalized its evaluation of the impact of adoption of this ASU, adoption is not expected to have any impact on the Company's consolidated financial position or cash flows, other than a cumulative effect adjustment to reclassify any unrealized gains or losses related to equity securities from AOCI to retained earnings. The carrying value of equity investments for which fair value changes will be recognized in earnings after adoption totaled $71 million and had unrealized gains of $10.0 million at September 30, 2017. Adoption of the ASU will impact the Company's disclosures about the fair value of certain financial instruments.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU require a lessee to recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for leases with terms longer than one year. Accounting applied by lessors is largely unchanged by this ASU. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2018. Early adoption is permitted; however, the Company does not intend to early adopt this ASU. Lessees and lessors are required to apply the provisions of the ASU at the beginning of the earliest period presented using a modified retrospective approach. Management has not completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, the most significant impact is expected to be the recognition, as lessee, of new right-of-use assets and lease liabilities on the consolidated balance sheet for real estate leases currently classified as operating leases.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326); Measurement of Credit Losses on Financial Instruments. The ASU introduces new guidance which makes substantive changes to the accounting for credit losses. The ASU introduces the CECL model which applies to financial assets subject to credit losses and measured at amortized cost, as well as certain off-balance sheet credit exposures. This includes loans, loan commitments, standby letters of credit, net investments in leases recognized by a lessor and held-to-maturity debt securities. The CECL model requires an entity to estimate credit losses expected over the life of an exposure, considering information about historical events, current conditions and reasonable and supportable forecasts. The ASU also modifies the current OTTI model for available for sale debt securities requiring an estimate of expected credit losses only when the fair value of an available for sale debt security is below its amortized cost. Credit losses on available for sale debt securities will be limited to the difference between the security's amortized cost basis and its fair value. The ASU also provides for a simplified accounting model for purchased financial assets with more than insignificant credit deterioration since their origination. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2019. Management has not yet completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, adoption is likely to lead to significant changes in accounting policies related to, and the methods employed in estimating, the ALLL. It is possible that the impact will be material to the Company's consolidated financial position and results of operations.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU provide guidance on eight specific cash flow classification issues where there has been diversity in practice. The guidance in the ASU that is expected to be most applicable to the Company requires: (1) cash payments for debt prepayment or extinguishment costs to be classified as cash outflows for financing activities, (2) proceeds from settlement of insurance claims to be classified on the basis of the nature of the loss and (3) cash proceeds from settlement of bank-owned life insurance policies to be classified as cash flows from investing activities. Cash payments for premiums on bank-owned life insurance may be classified as cash flows for investing activities, operating activities or a combination thereof. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be applied retrospectively to each period presented. The provisions of this ASU are generally consistent with the Company's current practice and adoption is not expected to materially impact the Company's consolidated cash flows.

Use of Estimates, Policy [Policy Text Block]

Accounting Estimates

In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates.

Significant estimates include the ALLL, the amount and timing of expected cash flows from covered assets and the FDIC indemnification asset, and the fair values of investment securities and other financial instruments. Management has used information provided by third party valuation specialists to assist in the determination of the fair values of investment securities.

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements Adopted

ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments in this ASU simplified several aspects of the accounting for share-based payment transactions. The Company adopted this ASU in the first quarter of 2017. The amendment requiring the recognition of excess tax benefits and deficiencies as income tax benefit or expense in the income statement as opposed to being recognized as additional paid-in-capital was applied prospectively and resulted in the recognition of $0.3 million and $3.2 million in excess tax benefits in the consolidated statement of income line item "Provision for income taxes" for the three and nine months ended September 30, 2017, increasing net income by the same amount in each period. The adoption had no impact on basic and diluted earnings per share for the three months ended September 30, 2017 and increased basic and diluted earnings per share by $0.02 and $0.03, respectively, for the nine months ended September 30, 2017. The Company retrospectively adopted the amendments requiring the classification of excess tax benefits and deficiencies with other income tax cash flows as operating activities and cash paid when directly withholding shares as financing activities in the accompanying consolidated statements of cash flows; the impact was not material. The Company elected to continue its practice of estimating the number of awards expected to vest in determining the amount of compensation cost to be recognized related to share based payment transactions.

ASU No. 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The amendments in this ASU require certain premiums on callable debt securities to be amortized to the earliest call date. The amortization period for callable debt securities purchased as a discount will not be impacted. The Company early-adopted this ASU in the first quarter of 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

ASU No. 2016-06, Derivatives and Hedging (Topic 815):Contingent Put and Call Options in Debt Instruments. The amendments in this ASU clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. A company performing the assessment under these amendments is required to assess the embedded call (put) options solely in accordance with a four-step decision sequence, without also considering whether the contingency is related to interest rates or credit risks. The Company adopted this ASU in the first quarter of 2017 with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, an amendment to simplify the subsequent quantitative measurement of goodwill by eliminating step two from the goodwill impairment test. As amended, an entity recognizes an impairment charge for the amount by which the carrying amount of a reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform the qualitative test for a reporting unit to determine if the quantitative impairment test is necessary. The Company early adopted this ASU in the third quarter of 2017, concurrent with performance of its annual goodwill impairment test, with no impact on its consolidated financial position, results of operations or cash flows.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness after initial qualification. For qualifying cash flow and net investment hedges, this means that the entire change in the fair value of the hedging instrument included in the assessment of hedge effectiveness will be recorded in other comprehensive income (OCI), and amounts deferred in OCI will be reclassified to earnings in the same income statement line item that is used to present the earnings effect of the hedged item when the hedged item affects earnings. The Company will have until the end of the first quarter in which a hedge is designated to perform an initial assessment of a hedge’s effectiveness. The new guidance also permits a qualitative effectiveness assessment for certain hedges instead of a quantitative test, such as a regression analysis, if the company can reasonably support an expectation of high effectiveness throughout the term of the hedge. In addition, in order to better align an entity's risk management activities and financial reporting for hedging relationships, the ASU allows for more hedging strategies to be eligible for hedge accounting. From a disclosure standpoint, to help users of the financial statements better understand the effects of hedge accounting, the guidance requires revised tabular disclosures that focus on the effect of hedge accounting by income statement line, and eliminates today’s requirement to disclose hedge ineffectiveness because this amount is no longer separately measured. The Company early adopted this ASU during the quarter ended September 30, 2017 with no material impact on the Company's consolidated financial position, results of operations or cash flows.

Recent Accounting Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which will supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Accounting Standards Codification. The amendments in this update affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets unless those contracts, including leases and insurance contracts, are within the scope of other standards. The amendments establish a core principle requiring the recognition of revenue to depict the transfer of goods or services to customers in an amount reflecting the consideration to which the entity expects to be entitled in exchange for such goods or services. The amendments also require expanded disclosures concerning the nature, amount, timing and uncertainty of revenues and cash flows arising from contracts with customers. Financial instruments and lease contracts are generally outside the scope of the ASU as are revenues that are in the scope of ASC 860 "Transfers and Servicing", ASC 460 "Guarantees" and ASC 815 "Derivatives and Hedging". The FASB has issued subsequent ASUs to clarify certain aspects of ASU 2014-09, without changing the core principle of the guidance and to defer the effective date of ASU 2014-09 to annual periods and interim periods within fiscal years beginning after December 15, 2017. Although management has not finalized its evaluation of the impact of adoption of this ASU, substantially all of the Company's revenues have historically been, and are expected to continue to be, generated from activities that are outside the scope of the ASU. Therefore, management does not expect adoption to have a material impact on the Company's consolidated financial position, results of operations or cash flows. Service charges on deposit accounts, which totaled approximately $9.8 million for the nine months ended September 30, 2017, is the most significant category of revenue identified as within the scope of the ASU; management does not expect the amount and timing of recognition of such revenue to be materially impacted by adoption, which management expects to apply using the modified retrospective approach, whereby the cumulative effect of initially applying the amendments is recognized as an adjustment to opening retained earnings at the date of adoption.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in the ASU that are expected to be most applicable to the Company (1) eliminate the available for sale classification for equity securities and require investments in equity securities (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income, provided that equity investments that do not have readily determinable fair values may be re-measured at fair value upon occurrence of an observable price change or recognition of impairment, (2) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, and (3) require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. The amendments also clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity's other deferred tax assets, which is consistent with the Company's current practice. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be adopted by means of a cumulative-effect adjustment to the balance sheet, except for amendments related to equity securities without readily determinable fair values, which will be applied prospectively. Although management has not finalized its evaluation of the impact of adoption of this ASU, adoption is not expected to have any impact on the Company's consolidated financial position or cash flows, other than a cumulative effect adjustment to reclassify any unrealized gains or losses related to equity securities from AOCI to retained earnings. The carrying value of equity investments for which fair value changes will be recognized in earnings after adoption totaled $71 million and had unrealized gains of $10.0 million at September 30, 2017. Adoption of the ASU will impact the Company's disclosures about the fair value of certain financial instruments.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU require a lessee to recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for leases with terms longer than one year. Accounting applied by lessors is largely unchanged by this ASU. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2018. Early adoption is permitted; however, the Company does not intend to early adopt this ASU. Lessees and lessors are required to apply the provisions of the ASU at the beginning of the earliest period presented using a modified retrospective approach. Management has not completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, the most significant impact is expected to be the recognition, as lessee, of new right-of-use assets and lease liabilities on the consolidated balance sheet for real estate leases currently classified as operating leases.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326); Measurement of Credit Losses on Financial Instruments. The ASU introduces new guidance which makes substantive changes to the accounting for credit losses. The ASU introduces the CECL model which applies to financial assets subject to credit losses and measured at amortized cost, as well as certain off-balance sheet credit exposures. This includes loans, loan commitments, standby letters of credit, net investments in leases recognized by a lessor and held-to-maturity debt securities. The CECL model requires an entity to estimate credit losses expected over the life of an exposure, considering information about historical events, current conditions and reasonable and supportable forecasts. The ASU also modifies the current OTTI model for available for sale debt securities requiring an estimate of expected credit losses only when the fair value of an available for sale debt security is below its amortized cost. Credit losses on available for sale debt securities will be limited to the difference between the security's amortized cost basis and its fair value. The ASU also provides for a simplified accounting model for purchased financial assets with more than insignificant credit deterioration since their origination. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2019. Management has not yet completed its evaluation of the impact of adoption of this ASU and is not currently able to reasonably estimate the impact of adoption on the consolidated financial statements; however, adoption is likely to lead to significant changes in accounting policies related to, and the methods employed in estimating, the ALLL. It is possible that the impact will be material to the Company's consolidated financial position and results of operations.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU provide guidance on eight specific cash flow classification issues where there has been diversity in practice. The guidance in the ASU that is expected to be most applicable to the Company requires: (1) cash payments for debt prepayment or extinguishment costs to be classified as cash outflows for financing activities, (2) proceeds from settlement of insurance claims to be classified on the basis of the nature of the loss and (3) cash proceeds from settlement of bank-owned life insurance policies to be classified as cash flows from investing activities. Cash payments for premiums on bank-owned life insurance may be classified as cash flows for investing activities, operating activities or a combination thereof. The amendments in this ASU are effective for the Company for interim and annual periods in fiscal years beginning after December 15, 2017 and will be applied retrospectively to each period presented. The provisions of this ASU are generally consistent with the Company's current practice and adoption is not expected to materially impact the Company's consolidated cash flows.

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Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share

The computation of basic and diluted earnings per common share is presented below for the periods indicated (in thousands, except share and per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
c	2017			2016			2017			2016
Basic earnings per common share:
Numerator:
Net income	$	67,779		$	50,848		$	196,479		$	162,447
Distributed and undistributed earnings allocated to participating securities	(2,525		)	(2,031		)	(7,331		)	(6,522		)
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Denominator:
Weighted average common shares outstanding	106,809,381			104,153,018			106,488,396			104,077,932
Less average unvested stock awards	(1,101,485		)	(1,150,268		)	(1,102,381		)	(1,165,509		)
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Basic earnings per common share	$	0.62		$	0.47		$	1.79		$	1.52
Diluted earnings per common share:
Numerator:
Income allocated to common stockholders for basic earnings per common share	$	65,254		$	48,817		$	189,148		$	155,925
Adjustment for earnings reallocated from participating securities	6			(81		)	21			(264		)
Income used in calculating diluted earnings per common share	$	65,260		$	48,736		$	189,169		$	155,661
Denominator:
Weighted average shares for basic earnings per common share	105,707,896			103,002,750			105,386,015			102,912,423
Dilutive effect of stock options and executive share-based awards	365,286			558,304			479,459			699,977
Weighted average shares for diluted earnings per common share	106,073,182			103,561,054			105,865,474			103,612,400
Diluted earnings per common share	$	0.62		$	0.47		$	1.79		$	1.50

Potentially Dilutive Securities Outstanding Categorized

The following potentially dilutive securities were outstanding at September 30, 2017 and 2016, but excluded from the calculation of diluted earnings per common share for the periods indicated because their inclusion would have been anti-dilutive: 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Unvested shares and share units	1,111,300	1,296,848	1,111,300	1,296,848
Stock options and warrants	1,850,279	1,851,376	1,850,279	1,851,376

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

Investment securities available for sale consisted of the following at the dates indicated (in thousands):

	September 30, 2017
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	24,969	$	—	$	(12	)	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	2,332,616		16,762		(691		)	2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	139,966		1,067		(1,813		)	139,220
Private label residential MBS and CMOs	507,381		20,812		(335		)	527,858
Private label commercial MBS	1,140,465		14,646		(1,510		)	1,153,601
Single family rental real estate-backed securities	566,635		6,425		(112		)	572,948
Collateralized loan obligations	695,414		4,905		—			700,319
Non-mortgage asset-backed securities	80,255		2,382		—			82,637
Preferred stocks	60,716		10,000		—			70,716
State and municipal obligations	666,013		14,370		(3,368		)	677,015
SBA securities	572,540		14,152		(17		)	586,675
Other debt securities	4,056		4,783		—			8,839
	$	6,791,026	$	110,304	$	(7,858	)	$	6,893,472

	December 31, 2016
	Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses
U.S. Treasury securities	$	4,999	$	6	$	—		$	5,005
U.S. Government agency and sponsored enterprise residential MBS	1,513,028		15,922		(1,708		)	1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	126,754		670		(2,838		)	124,586
Private label residential MBS and CMOs	334,167		42,939		(2,008		)	375,098
Private label commercial MBS	1,180,386		9,623		(2,385		)	1,187,624
Single family rental real estate-backed securities	858,339		4,748		(1,836		)	861,251
Collateralized loan obligations	487,678		868		(1,250		)	487,296
Non-mortgage asset-backed securities	187,660		2,002		(2,926		)	186,736
Preferred stocks	76,180		12,027		(4		)	88,203
State and municipal obligations	705,884		3,711		(11,049		)	698,546
SBA securities	517,129		7,198		(421		)	523,906
Other debt securities	3,999		4,092		—			8,091
	$	5,996,203	$	103,806	$	(26,425	)	$	6,073,584

Investments Classified by Contractual Maturity Date

At September 30, 2017, contractual maturities of investment securities available for sale, adjusted for anticipated prepayments of mortgage-backed and other pass-through securities, were as follows (in thousands):

	Amortized Cost		Fair Value
Due in one year or less	$	684,986	$	697,034
Due after one year through five years	3,363,698		3,406,609
Due after five years through ten years	2,252,239		2,282,220
Due after ten years	429,387		436,893
Preferred stocks with no stated maturity	60,716		70,716
	$	6,791,026	$	6,893,472

Schedule of Realized Gain (Loss)

The following table provides information about gains and losses on investment securities available for sale for the periods indicated (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Proceeds from sale of investment securities available for sale	$	399,430		$	259,571		$	827,353		$	753,756
Gross realized gains	$	28,261		$	3,471		$	30,553		$	10,528
Gross realized losses	(1,330		)	—			(1,359		)	—
Net realized gain	26,931			3,471			29,194			10,528
OTTI	—			(463		)	—			(463		)
Gain on investment securities available for sale, net	$	26,931		$	3,008		$	29,194		$	10,065

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value

The following tables present the aggregate fair value and the aggregate amount by which amortized cost exceeded fair value for investment securities in unrealized loss positions, aggregated by investment category and length of time that individual securities had been in continuous unrealized loss positions at the dates indicated (in thousands):

	September 30, 2017
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities	$	24,957	$	(12	)	$	—	$	—		$	24,957	$	(12	)
U.S. Government agency and sponsored enterprise residential MBS	460,806		(425		)	9,544		(266		)	470,350		(691		)
U.S. Government agency and sponsored enterprise commercial MBS	55,152		(1,783		)	14,270		(30		)	69,422		(1,813		)
Private label residential MBS and CMOs	72,557		(217		)	5,820		(118		)	78,377		(335		)
Private label commercial MBS	124,664		(1,510		)	—		—			124,664		(1,510		)
Single family rental real estate-backed securities	14,708		(112		)	—		—			14,708		(112		)
State and municipal obligations	184,082		(3,368		)	—		—			184,082		(3,368		)
SBA securities	—		—			18,229		(17		)	18,229		(17		)
	$	936,926	$	(7,427	)	$	47,863	$	(431	)	$	984,789	$	(7,858	)

	December 31, 2016
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Government agency and sponsored enterprise residential MBS	$	191,463	$	(628	)	$	112,391	$	(1,080	)	$	303,854	$	(1,708	)
U.S. Government agency and sponsored enterprise commercial MBS	89,437		(2,838		)	—		—			89,437		(2,838		)
Private label residential MBS and CMOs	122,142		(1,680		)	8,074		(328		)	130,216		(2,008		)
Private label commercial MBS	169,535		(2,370		)	24,985		(15		)	194,520		(2,385		)
Single family rental real estate-backed securities	139,867		(842		)	176,057		(994		)	315,924		(1,836		)
Collateralized loan obligations	69,598		(402		)	173,983		(848		)	243,581		(1,250		)
Non-mortgage asset-backed securities	139,477		(2,926		)	—		—			139,477		(2,926		)
Preferred stocks	10,087		(4		)	—		—			10,087		(4		)
State and municipal obligations	448,180		(11,049		)	—		—			448,180		(11,049		)
SBA securities	4,204		(13		)	20,076		(408		)	24,280		(421		)
	$	1,383,990	$	(22,752	)	$	515,566	$	(3,673	)	$	1,899,556	$	(26,425	)

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Loans and Allowance for Loan and Lease Losses (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Schedule of Loans Categorized

	September 30, 2017
				Covered Loans									Percent of Total
	Non-Covered Loans			ACI			Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,958,205		$	470,300		$	28,589		$	4,457,094		21.7	%
Home equity loans and lines of credit	1,644			5,640			37,764			45,048			0.2	%
Other consumer loans	20,166			—			—			20,166			0.1	%
	3,980,015			475,940			66,353			4,522,308			22.0	%
Commercial:
Multi-family	3,358,801			—			—			3,358,801			16.3	%
Non-owner occupied commercial real estate	4,183,275			—			—			4,183,275			20.4	%
Construction and land	271,994			—			—			271,994			1.3	%
Owner occupied commercial real estate	1,959,464			—			—			1,959,464			9.5	%
Commercial and industrial	3,900,290			—			—			3,900,290			19.0	%
Commercial lending subsidiaries	2,374,193			—			—			2,374,193			11.5	%
	16,048,017			—			—			16,048,017			78.0	%
Total loans	20,028,032			475,940			66,353			20,570,325			100.0	%
Premiums, discounts and deferred fees and costs, net	44,422			—			(4,317		)	40,105
Loans including premiums, discounts and deferred fees and costs	20,072,454			475,940			62,036			20,610,430
Allowance for loan and lease losses	(153,725		)	(1,812		)	(3,036		)	(158,573		)
Loans, net	$	19,918,729		$	474,128		$	59,000		$	20,451,857

	December 31, 2016
				Covered Loans								Percent of Total
	Non-Covered Loans			ACI		Non-ACI			Total
Residential and other consumer:
1-4 single family residential	$	3,422,425		$	532,348	$	36,675		$	3,991,448		20.6	%
Home equity loans and lines of credit	1,120			3,894		47,629			52,643			0.3	%
Other consumer loans	24,365			—		—			24,365			0.1	%
	3,447,910			536,242		84,304			4,068,456			21.0	%
Commercial:
Multi-family	3,824,973			—		—			3,824,973			19.8	%
Non-owner occupied commercial real estate	3,739,235			—		—			3,739,235			19.3	%
Construction and land	311,436			—		—			311,436			1.6	%
Owner occupied commercial real estate	1,736,858			—		—			1,736,858			9.0	%
Commercial and industrial	3,391,614			—		—			3,391,614			17.5	%
Commercial lending subsidiaries	2,280,685			—		—			2,280,685			11.8	%
	15,284,801			—		—			15,284,801			79.0	%
Total loans	18,732,711			536,242		84,304			19,353,257			100.0	%
Premiums, discounts and deferred fees and costs, net	48,641			—		(6,504		)	42,137
Loans including premiums, discounts and deferred fees and costs	18,781,352			536,242		77,800			19,395,394
Allowance for loan and lease losses	(150,853		)	—		(2,100		)	(152,953		)
Loans, net	$	18,630,499		$	536,242	$	75,700		$	19,242,441

Included in non-covered loans above are $38 million and $47 million at September 30, 2017 and December 31, 2016, respectively, of ACI commercial loans acquired in the FSB Acquisition.

Accretable Yield Rollfoward [Table Text Block]

Changes in the accretable yield on ACI loans for the nine months ended September 30, 2017 and the year ended December 31, 2016 were as follows (in thousands):

Balance at December 31, 2015	$	902,565
Reclassifications from non-accretable difference	76,751
Accretion	(303,931		)
Balance at December 31, 2016	675,385
Reclassifications from non-accretable difference	72,827
Accretion	(226,251		)
Balance at September 30, 2017	$	521,961

Covered Loan Sales - Residential [Table Text Block]

During the periods indicated, the Company sold covered residential loans to third parties on a non-recourse basis. The following table summarizes the impact of these transactions (in thousands): 

	Three Months Ended September 30,			Nine Months Ended September 30,
	2016			2017			2016
UPB of loans sold	$	61,406		$	123,737		$	176,958
Cash proceeds, net of transaction costs	$	37,047		$	98,404		$	120,537
Recorded investment in loans sold	47,080			99,986			135,432
Loss on sale of covered loans, net	$	(10,033	)	$	(1,582	)	$	(14,895	)
Gain on FDIC indemnification, net	$	8,026		$	1,266		$	11,958

Allowance for Credit Losses on Financing Receivables

Activity in the ALLL is summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017										2016
	Residential and Other Consumer		Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	13,550	$	142,098		$	—	$	155,648		$	12,415		$	123,303		$	135,718
Provision for (recovery of) loan losses:
Covered loans	268		(7		)	—		261			(430		)	(15		)	(445		)
Non-covered loans	363		32,230			5,000		37,593			1,974			22,879			24,853
Total provision	631		32,223			5,000		37,854			1,544			22,864			24,408
Charge-offs:
Covered loans	—		—			—		—			(247		)	—			(247		)
Non-covered loans	—		(36,028		)	—		(36,028		)	—			(6,615		)	(6,615		)
Total charge-offs	—		(36,028		)	—		(36,028		)	(247		)	(6,615		)	(6,862		)
Recoveries:
Covered loans	31		7			—		38			9			15			24
Non-covered loans	8		1,053			—		1,061			5			1,183			1,188
Total recoveries	39		1,060			—		1,099			14			1,198			1,212
Ending balance	$	14,220	$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

	Nine Months Ended September 30,
	2017											2016
	Residential and Other Consumer			Commercial			Unallocated		Total			Residential and Other Consumer			Commercial			Total
Beginning balance	$	11,503		$	141,450		$	—	$	152,953		$	16,211		$	109,617		$	125,828
Provision for (recovery of) loan losses:
Covered loans	2,738			(45		)	—		2,693			(1,074		)	(45		)	(1,119		)
Non-covered loans	(52		)	55,932			5,000		60,880			(420		)	43,988			43,568
Total provision	2,686			55,887			5,000		63,573			(1,494		)	43,943			42,449
Charge-offs:
Covered loans	(55		)	—			—		(55		)	(1,086		)	—			(1,086		)
Non-covered loans	—			(61,034		)	—		(61,034		)	—			(15,748		)	(15,748		)
Total charge-offs	(55		)	(61,034		)	—		(61,089		)	(1,086		)	(15,748		)	(16,834		)
Recoveries:
Covered loans	65			45			—		110			77			45			122
Non-covered loans	21			3,005			—		3,026			18			2,893			2,911
Total recoveries	86			3,050			—		3,136			95			2,938			3,033
Ending balance	$	14,220		$	139,353		$	5,000	$	158,573		$	13,726		$	140,750		$	154,476

The following table presents information about the balance of the ALLL and related loans at the dates indicated (in thousands):

	September 30, 2017								December 31, 2016
	Residential and Other Consumer		Commercial		Unallocated		Total		Residential and Other Consumer		Commercial		Total
Allowance for loan and lease losses:
Ending balance	$	14,220	$	139,353	$	5,000	$	158,573	$	11,503	$	141,450	$	152,953
Covered loans:
Ending balance	$	4,848	$	—	$	—	$	4,848	$	2,100	$	—	$	2,100
Ending balance: non-ACI loans individually evaluated for impairment	$	1,024	$	—	$	—	$	1,024	$	529	$	—	$	529
Ending balance: non-ACI loans collectively evaluated for impairment	$	2,012	$	—	$	—	$	2,012	$	1,571	$	—	$	1,571
Ending balance: ACI loans	$	1,812	$	—	$	—	$	1,812	$	—	$	—	$	—
Non-covered loans:
Ending balance	$	9,372	$	139,353	$	5,000	$	153,725	$	9,403	$	141,450	$	150,853
Ending balance: new loans individually evaluated for impairment	$	71	$	23,902	$	—	$	23,973	$	12	$	19,229	$	19,241
Ending balance: new loans collectively evaluated for impairment	$	9,301	$	115,451	$	5,000	$	129,752	$	9,391	$	122,221	$	131,612
Ending balance: ACI loans	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Loans:							0
Covered loans:
Ending balance	$	537,976	$	—	$	—	$	537,976	$	614,042	$	—	$	614,042
Ending balance: non-ACI loans individually evaluated for impairment	$	11,721	$	—	$	—	$	11,721	$	12,396	$	—	$	12,396
Ending balance: non-ACI loans collectively evaluated for impairment	$	50,315	$	—	$	—	$	50,315	$	65,404	$	—	$	65,404
Ending balance: ACI loans	$	475,940	$	—	$	—	$	475,940	$	536,242	$	—	$	536,242
Non-covered loans:
Ending balance	$	4,033,612	$	16,038,842	$	—	$	20,072,454	$	3,495,775	$	15,285,577	$	18,781,352
Ending balance: new loans individually evaluated for impairment	$	911	$	210,364	$	—	$	211,275	$	561	$	176,932	$	177,493
Ending balance: new loans collectively evaluated for impairment	$	4,032,701	$	15,790,546	$	—	$	19,823,247	$	3,495,207	$	15,061,707	$	18,556,914
Ending balance: ACI loans	$	—	$	37,932	$	—	$	37,932	$	7	$	46,938	$	46,945

The ALLL on residential and other consumer ACI loans at September 30, 2017 represents impairment of one pool of ACI home equity loans and lines of credit.

The ALLL at September 30, 2017 included $5.4 million related to the impact of Hurricanes Irma and Harvey, which made landfall during the three months ended September 30, 2017. The ALLL includes $0.4 million related to commercial loans that were downgraded during the three months ended September 30, 2017 as a result of the hurricanes and a $5.0 million unallocated qualitative allowance.

Impaired Financing Receivables

The table below presents information about loans or ACI pools identified as impaired at the dates indicated (in thousands):

	September 30, 2017						December 31, 2016
	Recorded Investment		UPB		Related Specific Allowance		Recorded Investment		UPB		Related Specific Allowance
Non-covered loans:
With no specific allowance recorded:
1-4 single family residential	$	27	$	32	$	—	$	—	$	—	$	—
Non-owner occupied commercial real estate	9,041		9,224		—		510		512		—
Construction and land	1,238		1,238		—		1,238		1,238		—
Owner occupied commercial real estate	16,786		16,949		—		16,834		16,894		—
Commercial and industrial
Taxi medallion loans	20,320		20,321		—		18,107		18,107		—
Other commercial and industrial	1,081		1,095		—		6,172		6,172		—
Commercial lending subsidiaries	12,810		12,815		—		10,620		10,510		—
With a specific allowance recorded:
1-4 single family residential	884		863		71		561		546		12
Owner occupied commercial real estate	3,961		3,943		2,994		491		513		263
Commercial and industrial
Taxi medallion loans	100,252		100,255		13,117		73,131		73,147		5,948
Other commercial and industrial	41,297		41,292		7,313		29,452		29,463		9,168
Commercial lending subsidiaries	3,578		3,553		478		21,712		21,605		3,850
Total:
Residential and other consumer	$	911	$	895	$	71	$	561	$	546	$	12
Commercial	210,364		210,685		23,902		178,267		178,161		19,229
	$	211,275	$	211,580	$	23,973	$	178,828	$	178,707	$	19,241
Covered loans:
Non-ACI loans:
With no specific allowance recorded:
1-4 single family residential	$	102	$	118	$	—	$	1,169	$	1,391	$	—
Home equity loans and lines of credit	1,312		1,324		—		2,255		2,286		—
With a specific allowance recorded:
1-4 single family residential	2,221		2,579		208		1,272		1,514		181
Home equity loans and lines of credit	8,086		8,163		816		7,700		7,804		348
	$	11,721	$	12,184	$	1,024	$	12,396	$	12,995	$	529
ACI loans:
With a specific allowance recorded:
Home equity loans and lines of credit	$	5,640	$	27,731	$	1,812	$	—	$	—	$	—

Non-covered impaired loans include commercial real estate ACI loans modified in TDRs with a carrying value of $1.3 million as of December 31, 2016. Interest income recognized on impaired loans and pools for the three and nine months ended September 30, 2017 was approximately $2.9 million and $8.3 million, respectively. Interest income recognized on impaired loans for the three and nine months endedSeptember 30, 2016 was not material.

The following tables present the average recorded investment in impaired loans or ACI pools for the periods indicated (in thousands): 

	Three Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	962	$	2,304	$	—	$	344	$	3,001	$	—
Home equity loans and lines of credit	—		9,533		5,166		—		9,551		—
	962		$	11,837	$	5,166	344		$	12,552	$	—
Commercial:
Multi-family	1,359						—
Non-owner occupied commercial real estate	8,216						506
Construction and land	2,797						1,285
Owner occupied commercial real estate	20,579						18,231
Commercial and industrial
Taxi medallion loans	123,867						56,125
Other commercial and industrial	42,479						48,143
Commercial lending subsidiaries	21,398						13,873
	220,695						138,163
	$	221,657					$	138,507

	Nine Months Ended September 30,
	2017						2016
			Covered Loans						Covered Loans
	Non-Covered Loans		Non-ACI Loans		ACI Loans		Non-Covered Loans		Non-ACI Loans		ACI Loans
Residential and other consumer:
1-4 single family residential	$	800	$	2,369	$	—	$	251	$	3,186	$	—
Home equity loans and lines of credit	—		9,638		4,209		—		8,920		—
	800		$	12,007	$	4,209	251		$	12,106	$	—
Commercial:
Multi-family	1,816						—
Non-owner occupied commercial real estate	4,056						776
Construction and land	3,317						650
Owner occupied commercial real estate	18,872						13,711
Commercial and industrial
Taxi medallion loans	107,529						30,977
Other commercial and industrial	43,308						41,975
Commercial lending subsidiaries	27,202						11,293
	206,100						99,382
	$	206,900					$	99,633

Schedule of Recorded Investment in New and Non-ACI Loans on Non-Accrual Status

The following table presents the recorded investment in loans on non-accrual status as of the dates indicated (in thousands):

	September 30, 2017				December 31, 2016
	Non-Covered Loans		Covered Non-ACI Loans		Non-Covered Loans		Covered Non-ACI Loans
Residential and other consumer:
1-4 single family residential	$	1,890	$	934	$	566	$	918
Home equity loans and lines of credit	—		2,369		—		2,283
Other consumer loans	332		—		2		—
	2,222		$	3,303	568		$	3,201
Commercial:
Non-owner occupied commercial real estate	9,930				559
Construction and land	1,238				1,238
Owner occupied commercial real estate	21,455				19,439
Commercial and industrial
Taxi medallion loans	120,572				60,660
Other commercial and industrial	27,569				16,036
Commercial lending subsidiaries	16,625				32,645
	197,389				130,577
	$	199,611			$	131,145

Financing Receivable Credit Quality Indicators

The following tables summarize key indicators of credit quality for the Company's loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands): 

1-4 Single Family Residential credit exposure for non-covered loans, based on original LTV and FICO score: 

	September 30, 2017
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	94,357	$	111,279	$	185,614	$	819,422	$	1,210,672
60% - 70%	93,963		102,461		140,350		586,158		922,932
70% - 80%	139,923		173,808		316,544		1,091,868		1,722,143
More than 80%	24,725		20,610		24,981		85,781		156,097
	$	352,968	$	408,158	$	667,489	$	2,583,229	$	4,011,844

	December 31, 2016
	FICO
LTV	720 or less		721 - 740		741 - 760		761 or greater		Total
60% or less	$	87,035	$	113,401	$	163,668	$	751,291	$	1,115,395
60% - 70%	80,694		94,592		124,180		523,970		823,436
70% - 80%	110,509		148,211		276,425		907,450		1,442,595
More than 80%	22,115		9,058		15,470		42,280		88,923
	$	300,353	$	365,262	$	579,743	$	2,224,991	$	3,470,349

Commercial credit exposure, based on internal risk rating: 

	September 30, 2017
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,299,753	$	4,069,749	$	265,921	$	1,890,785	$	—	$	3,666,227	$	2,313,152	$	15,505,587
Special mention	32,255		12,824		—		31,495		—		38,389		35,936		150,899
Substandard	30,253		90,996		5,535		31,460		120,572		64,087		33,637		376,540
Doubtful	—		—		—		3,009		—		2,807		—		5,816
	$	3,362,261	$	4,173,569	$	271,456	$	1,956,749	$	120,572	$	3,771,510	$	2,382,725	$	16,038,842

	December 31, 2016
									Commercial and Industrial
	Multi-Family		Non-Owner Occupied Commercial Real Estate		Construction and Land		Owner Occupied Commercial Real Estate		Taxi Medallion Loans		Other Commercial and Industrial		Commercial Lending Subsidiaries		Total
Pass	$	3,811,822	$	3,694,931	$	309,675	$	1,672,199	$	40,460	$	3,112,590	$	2,255,444	$	14,897,121
Special mention	12,000		7,942		—		33,274		—		19,009		—		72,225
Substandard	5,852		28,935		1,238		30,377		138,035		68,704		31,572		304,713
Doubtful	—		—		—		—		178		8,162		3,178		11,518
	$	3,829,674	$	3,731,808	$	310,913	$	1,735,850	$	178,673	$	3,208,465	$	2,290,194	$	15,285,577

Schedule of Past Due Financing Receivables

The following table presents an aging of loans at the dates indicated. Amounts include premiums, discounts and deferred fees and costs (in thousands):

	September 30, 2017										December 31, 2016
	Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total		Current		30 - 59 Days Past Due		60 - 89 Days Past Due		90 Days or More Past Due		Total
Non-covered loans:
1-4 single family residential	$	3,994,758	$	13,964	$	444	$	2,678	$	4,011,844	$	3,457,606	$	10,355	$	325	$	2,063	$	3,470,349
Home equity loans and lines of credit	1,623		21		—		—		1,644		1,120		—		—		—		1,120
Other consumer loans	19,623		500		—		1		20,124		24,306		—		—		—		24,306
Multi-family	3,362,261		—		—		—		3,362,261		3,829,674		—		—		—		3,829,674
Non-owner occupied commercial real estate	4,171,880		—		—		1,689		4,173,569		3,730,470		754		—		584		3,731,808
Construction and land	270,218		—		—		1,238		271,456		309,675		—		—		1,238		310,913
Owner occupied commercial real estate	1,947,728		1,261		266		7,494		1,956,749		1,726,826		1,557		797		6,670		1,735,850
Commercial and industrial
Taxi medallion loans	107,325		—		2,803		10,444		120,572		137,856		7,037		4,563		29,217		178,673
Other commercial and industrial	3,769,065		1,629		58		758		3,771,510		3,198,008		2,515		954		6,988		3,208,465
Commercial lending subsidiaries	2,382,725		—		—		—		2,382,725		2,284,435		12		3,247		2,500		2,290,194
	$	20,027,206	$	17,375	$	3,571	$	24,302	$	20,072,454	$	18,699,976	$	22,230	$	9,886	$	49,260	$	18,781,352
Covered loans:
Non-ACI loans:
1-4 single family residential	$	23,002	$	691	$	—	$	934	$	24,627	$	29,406	$	481	$	—	$	918	$	30,805
Home equity loans and lines of credit	33,263		1,114		663		2,369		37,409		43,129		1,255		534		2,077		46,995
	$	56,265	$	1,805	$	663	$	3,303	$	62,036	$	72,535	$	1,736	$	534	$	2,995	$	77,800
ACI loans:
1-4 single family residential	$	436,051	$	14,126	$	2,549	$	17,574	$	470,300	$	500,272	$	13,524	$	2,990	$	15,562	$	532,348
Home equity loans and lines of credit	4,876		89		40		635		5,640		3,460		148		23		263		3,894
	$	440,927	$	14,215	$	2,589	$	18,209	$	475,940	$	503,732	$	13,672	$	3,013	$	15,825	$	536,242

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

The following table summarizes loans that were modified in TDRs during the periods indicated, as well as loans modified during the twelve months preceding September 30, 2017 and 2016, that experienced payment defaults during the periods indicated (dollars in thousands):

	Three Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	—	$	—	2	$	269	—	$	—	—	$	—
Owner occupied commercial real estate	—	—		—	—		1	491		—	—
Commercial and industrial
Taxi medallion loans	15	5,439		6	2,105		18	29,854		8	4,104
Other commercial and industrial	1	978		—	—		2	1,646		—
Commercial lending subsidiaries	—	—		—	—		5	4,433		1	3,500
	16	$	6,417	8	$	2,374	26	$	36,424	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	—	$	—	1	$	70	10	$	1,671	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

	Nine Months Ended September 30,
	2017						2016
	Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period			Loans Modified in TDRs  During the Period			TDRs Experiencing Payment Defaults During the Period
	Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment		Number of TDRs	Recorded Investment
Non-covered loans:
1-4 single family residential	4	$	351	2	$	269	1	$	107	—	$	—
Non-owner occupied commercial real estate	1	5,389		—	—		—	—		—	—
Owner occupied commercial real estate	2	4,522		—	—		3	5,225		—	—
Commercial and industrial
Taxi medallion loans	97	48,692		8	3,509		58	57,341		8	4,104
Other commercial and industrial	14	20,860		—	—		7	21,422		1	3,500
Commercial lending subsidiaries	1	12,810		—	—		6	7,933		—	—
	119	$	92,624	10	$	3,778	75	$	92,028	9	$	7,604
Covered loans:
Non-ACI loans:
Home equity loans and lines of credit	5	$	939	1	$	70	16	$	2,293	—	$	—
ACI loans:
Owner occupied commercial real estate	—	$	—	—	$	—	1	$	839	—	$	—

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FDIC Indemnification Asset (Tables)

9 Months Ended

Sep. 30, 2017

FDIC Indemnification Asset [Abstract]

Summary of the Gains and Losses Associated with Covered Assets

The following tables summarize the components of the gains and losses associated with covered assets, along with the related additions to or reductions in the amounts recoverable from the FDIC under the Loss Sharing Agreements, as reflected in the consolidated statements of income for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Gain on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(261	)	$	215		$	(46	)	$	445		$	(368	)	$	77
Income from resolution of covered assets, net	6,400			(5,082		)	1,318			8,883			(7,106		)	1,777
Loss on sale of covered loans	—			—			—			(10,033		)	8,026			(2,007		)
Loss on covered OREO	(35		)	29			(6		)	(552		)	441			(111		)
	$	6,104		$	(4,838	)	$	1,266		$	(1,257	)	$	993		$	(264	)

	Nine Months Ended September 30,
	2017									2016
	Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings			Transaction Income (Loss)			Net Loss on FDIC Indemnification			Net Impact on Pre-tax Earnings
Recovery of (provision for) losses on covered loans	$	(2,693	)	$	2,095		$	(598	)	$	1,119		$	(1,007	)	$	112
Income from resolution of covered assets, net	22,066			(17,591		)	4,475			26,426			(21,140		)	5,286
Loss on sale of covered loans	(1,582		)	1,266			(316		)	(14,895		)	11,958			(2,937		)
Loss on covered OREO	(65		)	56			(9		)	(957		)	779			(178		)
	$	17,726		$	(14,174	)	$	3,552		$	11,693		$	(9,410	)	$	2,283

Changes in the FDIC Indemnification Asset

Changes in the FDIC indemnification asset and in the liability to the FDIC for recoveries related to assets previously covered under the Commercial Shared-Loss Agreement for the nine months ended September 30, 2017 and the year ended December 31, 2016, were as follows (in thousands): 

Balance at December 31, 2015	$	739,843
Amortization	(160,091		)
Reduction for claims filed	(46,083		)
Net loss on FDIC indemnification	(17,759		)
Balance at December 31, 2016	515,910
Amortization	(135,351		)
Reduction for claims filed	(16,768		)
Net loss on FDIC indemnification	(14,174		)
Balance at September 30, 2017	$	349,617

FDIC Asset and Liability

The balances at September 30, 2017 and December 31, 2016 are reflected in the consolidated balance sheets as follows (in thousands):

	September 30, 2017		December 31, 2016
FDIC indemnification asset	$	349,617	$	515,933
Other liabilities	—		(23		)
	$	349,617	$	515,910

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Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Contract Derivative Financial Instruments and Related Hedged Items

The following tables set forth certain information concerning the Company’s interest rate contract derivative financial instruments and related hedged items at the dates indicated (dollars in thousands):

	September 30, 2017
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.77%	3-Month Libor	4.6	$	2,046,000	Other assets / Other liabilities	$	1,066	$	(259	)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.86%	Indexed to 1-month Libor	6.4	1,000,763		Other assets / Other liabilities	7,605		(18,311		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.86%	6.4	1,000,763		Other assets / Other liabilities	19,648		(8,491		)
Interest rate caps purchased, indexed to 1-month Libor			2.80%	1.6	145,957		Other assets	15		—
Interest rate caps sold, indexed to 1-month Libor		2.80%		1.6	145,957		Other liabilities	—		(15		)
					$	4,339,440		$	28,334	$	(27,076	)

	December 31, 2016
		Weighted Average Pay Rate	Weighted Average Receive Rate	Weighted Average Remaining Life in Years
					Notional Amount		Balance Sheet Location	Fair Value
	Hedged Item							Asset		Liability
Derivatives designated as cash flow hedges:
Pay-fixed interest rate swaps	Variability of interest cash flows on variable rate borrowings	1.58%	3-Month Libor	3.3	$	1,715,000	Other assets / Other liabilities	$	19,648	$	(3,112	)
Pay-fixed forward-starting interest rate swaps	Variability of interest cash flows on variable rate borrowings	3.43%	3-Month Libor	10.5	300,000		Other liabilities	—		(27,866		)
Derivatives not designated as hedges:
Pay-fixed interest rate swaps		3.77%	Indexed to 1-month Libor	6.8	912,000		Other assets / Other liabilities	9,949		(20,383		)
Pay-variable interest rate swaps		Indexed to 1-month Libor	3.77%	6.8	912,000		Other assets / Other liabilities	20,383		(9,949		)
Interest rate caps purchased, indexed to 1-month Libor			2.96%	2.3	189,057		Other assets	252		—
Interest rate caps sold, indexed to 1-month Libor		2.96%		2.3	189,057		Other liabilities	—		(252		)
					$	4,217,114		$	50,232	$	(61,562	)

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following table provides information about the amount of loss reclassified from AOCI into interest expense for the periods indicated (dollars in thousands):

	Amount of Loss Reclassified from AOCI on Derivatives
	Three Months Ended September 30,						Nine Months Ended September 30,
Derivatives in Cash Flow Hedging Relationships	2017			2016			2017			2016			Location of Loss Reclassified from AOCI into Income
Interest rate contracts	$	(2,001	)	$	(3,741	)	$	(7,463	)	$	(13,050	)	Interest expense on borrowings

Schedule of Interest Rate Swaps Subject to Master Netting Agreements

The Company does not offset assets and liabilities under master netting agreements for financial reporting purposes. Information on interest rate swaps subject to these agreements is as follows at the dates indicated (in thousands):

	September 30, 2017
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged			Net Amount
Derivative assets	$	8,686		$	—	$	8,686		$	(6,814	)	$	(1,539	)	$	333
Derivative liabilities	(18,570		)	—		(18,570		)	6,814			11,756			—
	$	(9,884	)	$	—	$	(9,884	)	$	—		$	10,217		$	333

	December 31, 2016
				Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet			Gross Amounts Not Offset in Balance Sheet
	Gross Amounts Recognized								Derivative Instruments			Collateral Pledged		Net Amount
Derivative assets	$	29,849		$	—	$	29,849		$	(27,485	)	$	—	$	2,364
Derivative liabilities	(51,362		)	—		(51,362		)	27,485			23,796		(81		)
	$	(21,513	)	$	—	$	(21,513	)	$	—		$	23,796	$	2,283

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Schedule of Changes in AOCI

Changes in AOCI are summarized as follows for the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	14,144		$	(5,587	)	$	8,557		$	5,316		$	(2,100	)	$	3,216
Amounts reclassified to gain on investment securities available for sale, net	(26,931		)	10,638			(16,293		)	(3,008		)	1,188			(1,820		)
Net change in unrealized gains on investment securities available for sale	(12,787		)	5,051			(7,736		)	2,308			(912		)	1,396
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period	(281		)	111			(170		)	8,356			(3,301		)	5,055
Amounts reclassified to interest expense on borrowings	2,001			(791		)	1,210			3,741			(1,477		)	2,264
Net change in unrealized losses on derivative instruments	1,720			(680		)	1,040			12,097			(4,778		)	7,319
Other comprehensive income (loss)	$	(11,067	)	$	4,371		$	(6,696	)	$	14,405		$	(5,690	)	$	8,715

	Nine Months Ended September 30,
	2017									2016
	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Unrealized gains on investment securities available for sale:
Net unrealized holding gain arising during the period	$	54,258		$	(21,432	)	$	32,826		$	88,413		$	(34,923	)	$	53,490
Amounts reclassified to gain on investment securities available for sale, net	(29,194		)	11,532			(17,662		)	(10,065		)	3,975			(6,090		)
Net change in unrealized gains on investment securities available for sale	25,064			(9,900		)	15,164			78,348			(30,948		)	47,400
Unrealized losses on derivative instruments:
Net unrealized holding loss arising during the period	(13,780		)	5,443			(8,337		)	(57,765		)	22,817			(34,948		)
Amounts reclassified to interest expense on borrowings	7,463			(2,948		)	4,515			13,050			(5,154		)	7,896
Net change in unrealized losses on derivative instruments	(6,317		)	2,495			(3,822		)	(44,715		)	17,663			(27,052		)
Other comprehensive income	$	18,747		$	(7,405	)	$	11,342		$	33,633		$	(13,285	)	$	20,348

Schedule of the Categories of AOCI and Changes Therein

The categories of AOCI and changes therein are presented below for the periods indicated (in thousands):

	Unrealized Gains on Investment Securities Available for Sale		Unrealized Losses on Derivative Instruments			Total
Balance at December 31, 2016	$	47,057	$	(5,810	)	$	41,247
Other comprehensive income	15,164		(3,822		)	11,342
Balance at September 30, 2017	$	62,221	$	(9,632	)	$	52,589
Balance at December 31, 2015	$	41,535	$	(19,353	)	$	22,182
Other comprehensive income	47,400		(27,052		)	20,348
Balance at September 30, 2016	$	88,935	$	(46,405	)	$	42,530

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Equity Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of activity related to stock option awards for the nine months ended September 30, 2017 follows:

	Number of Option Awards		Weighted Average Exercise Price
Option awards outstanding, December 31, 2016	3,602,076		$	26.74
Exercised	(2,304,108	)	26.70
Option awards outstanding and exercisable, September 30, 2017	1,297,968		$	26.81

Activity related to stock option awards for the nine months ended September 30, 2016 was not significant. The intrinsic value of options exercised and the related tax benefit was $25.3 million and $3.8 million, respectively, during the nine months ended September 30, 2017.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands):

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	24,957	$	—	$	—	$	24,957
U.S. Government agency and sponsored enterprise residential MBS	—		2,348,687		—		2,348,687
U.S. Government agency and sponsored enterprise commercial MBS	—		139,220		—		139,220
Private label residential MBS and CMOs	—		467,061		60,797		527,858
Private label commercial MBS	—		1,153,601		—		1,153,601
Single family rental real estate-backed securities	—		572,948		—		572,948
Collateralized loan obligations	—		700,319		—		700,319
Non-mortgage asset-backed securities	—		82,637		—		82,637
Preferred stocks	70,038		678		—		70,716
State and municipal obligations	—		677,015		—		677,015
SBA securities	—		586,675		—		586,675
Other debt securities	—		3,815		5,024		8,839
Servicing rights	—		—		30,136		30,136
Derivative assets	—		28,334		—		28,334
Total assets at fair value	$	94,995	$	6,760,990	$	95,957	$	6,951,942
Derivative liabilities	$	—	$	27,076	$	—	$	27,076
Total liabilities at fair value	$	—	$	27,076	$	—	$	27,076

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Investment securities available for sale:
U.S. Treasury securities	$	5,005	$	—	$	—	$	5,005
U.S. Government agency and sponsored enterprise residential MBS	—		1,527,242		—		1,527,242
U.S. Government agency and sponsored enterprise commercial MBS	—		124,586		—		124,586
Private label residential MBS and CMOs	—		254,488		120,610		375,098
Private label commercial MBS	—		1,187,624		—		1,187,624
Single family rental real estate-backed securities	—		861,251		—		861,251
Collateralized loan obligations	—		487,296		—		487,296
Non-mortgage asset-backed securities	—		186,736		—		186,736
Preferred stocks	86,890		1,313		—		88,203
State and municipal obligations	—		698,546		—		698,546
SBA securities	—		523,906		—		523,906
Other debt securities	—		3,519		4,572		8,091
Servicing rights	—		—		27,159		27,159
Derivative assets	—		50,232		—		50,232
Total assets at fair value	$	91,895	$	5,906,739	$	152,341	$	6,150,975
Derivative liabilities	$	—	$	61,562	$	—	$	61,562
Total liabilities at fair value	$	—	$	61,562	$	—	$	61,562

Reconciliation of the Changes in the Fair Value of Assets and Liabilities Measured on a Recurring Basis, Unobservable Input

The following table reconciles changes in the fair value of assets and liabilities measured at fair value on a recurring basis and classified in level 3 of the fair value hierarchy during the periods indicated (in thousands):

	Three Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	108,790		$	4,923		$	29,128		$	131,156		$	4,292		$	24,891
Gains (losses) for the period included in:
Net income	24,146			—			(1,330		)	—			—			(2,369		)
Other comprehensive income	(24,668		)	101			—			337			22			—
Discount accretion	2,332			59			—			1,404			36			—
Purchases or additions	—			—			2,338			—			—			2,194
Sales	(40,732		)	—			—			—			—			—
Settlements	(9,071		)	(59		)	—			(5,594		)	(26		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

	Nine Months Ended September 30,
	2017									2016
	Private Label Residential MBS			Other Debt Securities			Servicing Rights			Private Label Residential MBS			Other Debt Securities			Servicing Rights
Balance at beginning of period	$	120,610		$	4,572		$	27,159		$	140,883		$	4,532		$	20,017
Gains (losses) for the period included in:
Net income	24,146			—			(4,273		)	—			—			(5,983		)
Other comprehensive income	(25,651		)	469			—			(190		)	(245		)	—
Discount accretion	5,208			248			—			4,485			88			—
Purchases or additions	—			—			7,250			—			—			10,682
Sales	(40,732		)	—			—			—			—			—
Settlements	(22,784		)	(265		)	—			(17,875		)	(51		)	—
Transfers into level 3	—			—			—			—			—			—
Transfers out of level 3	—			—			—			—			—			—
Balance at end of period	$	60,797		$	5,024		$	30,136		$	127,303		$	4,324		$	24,716

Valuation Techniques and Unobservable Inputs Used in the Valuation of Financial Instruments Falling Within Level 3 of the Fair Value Hierarchy

The following table provides information about the valuation techniques and unobservable inputs used in the valuation of private label residential MBS and CMOs falling within level 3 of the fair value hierarchy as of September 30, 2017 (dollars in thousands): 

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Investment grade	$	34,245	Discounted cash flow	Voluntary prepayment rate	6.60% - 25.60% (15.92%)
				Probability of default	0.13% - 4.04% (1.36%)
				Loss severity	15.00% - 75.00% (33.10%)
				Discount rate	1.88% - 7.43% (3.48%)
Non-investment grade	$	26,552	Discounted cash flow	Voluntary prepayment rate	1.10% - 29.30% (15.35%)
				Probability of default	0.13% - 4.15% (1.51%)
				Loss severity	15.00% - 95.00% (32.96%)
				Discount rate	1.35% - 9.43% (5.89%)

The significant unobservable inputs impacting the fair value measurement of private label residential MBS and CMOs include voluntary prepayment rates, probability of default, loss severity given default and discount rates. Generally, increases in probability of default, loss severity or discount rates would result in a lower fair value measurement. Alternatively, decreases in probability of default, loss severity or discount rates would result in a higher fair value measurement. For securities with less favorable credit characteristics, decreases in voluntary prepayment speeds may be interpreted as a deterioration in the overall credit quality of the underlying collateral and as such, lead to lower fair value measurements. The fair value measurements of those securities with higher levels of subordination will be less sensitive to changes in these unobservable inputs other than discount rates, while securities with lower levels of subordination will show a higher degree of sensitivity to changes in these unobservable inputs other than discount rates. Generally, a change in the assumption used for probability of default is accompanied by a directionally similar change in the assumption used for loss severity given default and a directionally opposite change in the assumption used for voluntary prepayment rate. 

The following table provides information about the valuation techniques and significant unobservable inputs used in the valuation of servicing rights as of September 30, 2017 (dollars in thousands):

	Fair Value at		Valuation Technique	Unobservable Input	Range (Weighted Average)
	September 30, 2017
Residential MSRs	$	18,006	Discounted cash flow	Prepayment rate	2.76% - 29.96% (12.88%)
				Discount rate	9.50% - 9.58% (9.51%)
Commercial servicing rights	$	12,130	Discounted cash flow	Prepayment rate	0.09% - 9.99% (7.81%)
				Discount rate	8.12% - 14.57% (12.48%)

Schedule of Assets for Which Nonrecurring Changes in Fair Value have been Recorded

The following tables present the carrying value of assets for which non-recurring changes in fair value have been recorded for the periods indicated (in thousands): 

	September 30, 2017								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2017			Nine Months Ended   September 30, 2017
OREO and repossessed assets	$	—	$	—	$	5,520	$	5,520	$	(515	)	$	(1,534	)
Impaired loans	$	—	$	—	$	107,173	$	107,173	$	(35,106	)	$	(58,073	)

	September 30, 2016								Losses from Fair Value Changes
	Level 1		Level 2		Level 3		Total		Three Months Ended    September 30, 2016			Nine Months Ended   September 30, 2016
OREO and repossessed assets	$	—	$	—	$	7,923	$	7,923	$	(372	)	$	740
Impaired loans	$	—	$	—	$	59,678	$	59,678	$	(10,623	)	$	(18,873	)

Included in the tables above are impaired taxi medallion loans with carrying values of $90.1 million and $39.6 million at September 30, 2017 and September 30, 2016, respectively, the majority of which were in New York City. Losses of $54.3 million and $10.2 million were recognized on impaired taxi medallion loans during the nine months ended September 30, 2017 and 2016, respectively.

Decreases in the value of medallions are largely driven by decreases in revenues generated from the medallions. Inputs that had the most significant impact on the valuation of New York City taxi medallions at September 30, 2017 are presented below:

	Average Amount
Average fare per trip	$16.12
Number of trips per shift	15.4
Days worked per month	25.6

Schedule of the Carrying Value and Fair Value of Financial Instruments

The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands):

		September 30, 2017				December 31, 2016
	Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Cash and cash equivalents	1	$	292,601	$	292,601	$	448,313	$	448,313
Investment securities available for sale	1/2/3	6,893,472		6,893,472		6,073,584		6,073,584
Investment securities held to maturity	3	10,000		10,000		10,000		10,000
Non-marketable equity securities	2	270,239		270,239		284,272		284,272
Loans held for sale	2	31,507		35,113		41,198		45,833
Loans:
Covered	3	533,128		997,376		611,942		1,200,291
Non-covered	3	19,918,729		19,906,579		18,630,499		18,713,495
FDIC Indemnification asset	3	349,617		168,415		515,933		256,691
Derivative assets	2	28,334		28,334		50,232		50,232
Liabilities:
Demand, savings and money market deposits	2	$	14,889,543	$	14,889,543	$	13,735,248	$	13,735,248
Time deposits	2	6,333,701		6,335,324		5,755,642		5,759,787
FHLB advances	2	4,871,000		4,876,017		5,239,348		5,244,188
Notes and other borrowings	2	402,828		427,748		402,809		403,733
Derivative liabilities	2	27,076		27,076		61,562		61,562

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of the Total Lending Related Commitments Outstanding

Total lending related commitments outstanding at September 30, 2017 were as follows (in thousands): 

Commitments to fund loans	$	417,943
Commitments to purchase loans	287,302
Unfunded commitments under lines of credit	2,361,922
Commercial and standby letters of credit	83,141
	$	3,150,308

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Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details)		3 Months Ended	9 Months Ended
	May 21, 2009 USD ($)	Sep. 30, 2017 USD ($) county branch $ / shares	Sep. 30, 2017 USD ($) county branch subsidiary $ / shares	Dec. 31, 2016 USD ($)
Summary of Significant Accounting Policies [Line Items]
Number Of Subsidiaries | subsidiary			1
Number of branches located in Florida (in Branches) | branch		90	90
Number of Florida counties with branches (in counties) | county		15	15
Number of branches located in New York metropolitan area (in Branches) | branch		6	6
Number of loss sharing agreements	2
Percent FDIC will reimburse for covered losses (in Percent)	80.00%
Limit on losses reimbursed at 80%	$ 4,000,000,000
Percent of losses in excess of limit FDIC will reimburse (in Percent)	95.00%
Fees and Commissions, Depositor Accounts			$ 9,800,000
Investment securities available for sale, at fair value		$ 6,893,472,000	6,893,472,000	$ 6,073,584,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		110,304,000	110,304,000	103,806,000
Accounting Standards Update 2016-09 [Member]
Summary of Significant Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income		$ 300,000	$ 3,200,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share | $ / shares		$ 0.00	$ 0.02
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share | $ / shares		$ 0.00	$ 0.03
Preferred stocks
Summary of Significant Accounting Policies [Line Items]
Investment securities available for sale, at fair value		$ 70,716,000	$ 70,716,000	88,203,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		$ 10,000,000	$ 10,000,000	$ 12,027,000

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Earnings Per Common Share (Computation of Basic and Diluted Earnings per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net income	$ 67,779	$ 50,848	$ 196,479	$ 162,447
Distributed and undistributed earnings allocated to participating securities	(2,525)	(2,031)	(7,331)	(6,522)
Income allocated to common stockholders for basic earnings per common share	$ 65,254	$ 48,817	$ 189,148	$ 155,925
Denominator:
Weighted average common shares outstanding	106,809,381	104,153,018	106,488,396	104,077,932
Less average unvested stock awards	(1,101,485)	(1,150,268)	(1,102,381)	(1,165,509)
Weighted average shares for basic earnings per common share	105,707,896	103,002,750	105,386,015	102,912,423
Basic earnings per common share	$ 0.62	$ 0.47	$ 1.79	$ 1.52
Numerator:
Income allocated to common stockholders for basic earnings per common share	$ 65,254	$ 48,817	$ 189,148	$ 155,925
Adjustment for earnings reallocated from participating securities	6	(81)	21	(264)
Income used in calculating diluted earnings per common share	$ 65,260	$ 48,736	$ 189,169	$ 155,661
Denominator:
Weighted average shares for basic earnings per common share	105,707,896	103,002,750	105,386,015	102,912,423
Dilutive effect of stock options and executive share-based awards	365,286	558,304	479,459	699,977
Weighted average shares for diluted earnings per common share	106,073,182	103,561,054	105,865,474	103,612,400
Diluted earnings per common share	$ 0.62	$ 0.47	$ 1.79	$ 1.50

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Earnings Per Common Share (Potentially Dilutive Securities Outstanding) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Unvested shares and share units
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items]
Potentially dilutive securities outstanding (in Shares)	1,111,300	1,296,848	1,111,300	1,296,848
Stock options and warrants
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items]
Potentially dilutive securities outstanding (in Shares)	1,850,279	1,851,376	1,850,279	1,851,376

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Earnings Per Common Share Earnings per Common Share (Narrative) (Details)	Sep. 30, 2017 shares
Earnings Per Share [Abstract]
Dividend Equivalent Rights	3,023,314

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Investment Securities (Schedule of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 6,791,026	$ 5,996,203
Gross Unrealized Gains	110,304	103,806
Gross Unrealized Losses	(7,858)	(26,425)
Investment securities available for sale, at fair value	6,893,472	6,073,584
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	24,969	4,999
Gross Unrealized Gains	0	6
Gross Unrealized Losses	(12)	0
Investment securities available for sale, at fair value	24,957	5,005
U.S. Government agency and sponsored enterprise residential MBS
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,332,616	1,513,028
Gross Unrealized Gains	16,762	15,922
Gross Unrealized Losses	(691)	(1,708)
Investment securities available for sale, at fair value	2,348,687	1,527,242
U.S. Government agency and sponsored enterprise commercial MBS
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	139,966	126,754
Gross Unrealized Gains	1,067	670
Gross Unrealized Losses	(1,813)	(2,838)
Investment securities available for sale, at fair value	139,220	124,586
Private label residential mortgage-backed securities and CMOs
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	507,381	334,167
Gross Unrealized Gains	20,812	42,939
Gross Unrealized Losses	(335)	(2,008)
Investment securities available for sale, at fair value	527,858	375,098
Private label commercial mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,140,465	1,180,386
Gross Unrealized Gains	14,646	9,623
Gross Unrealized Losses	(1,510)	(2,385)
Investment securities available for sale, at fair value	1,153,601	1,187,624
Single family rental real estate-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	566,635	858,339
Gross Unrealized Gains	6,425	4,748
Gross Unrealized Losses	(112)	(1,836)
Investment securities available for sale, at fair value	572,948	861,251
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	695,414	487,678
Gross Unrealized Gains	4,905	868
Gross Unrealized Losses	0	(1,250)
Investment securities available for sale, at fair value	700,319	487,296
Non-mortgage asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	80,255	187,660
Gross Unrealized Gains	2,382	2,002
Gross Unrealized Losses	0	(2,926)
Investment securities available for sale, at fair value	82,637	186,736
Preferred stocks
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	60,716	76,180
Gross Unrealized Gains	10,000	12,027
Gross Unrealized Losses	0	(4)
Investment securities available for sale, at fair value	70,716	88,203
State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	666,013	705,884
Gross Unrealized Gains	14,370	3,711
Gross Unrealized Losses	(3,368)	(11,049)
Investment securities available for sale, at fair value	677,015	698,546
SBA securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	572,540	517,129
Gross Unrealized Gains	14,152	7,198
Gross Unrealized Losses	(17)	(421)
Investment securities available for sale, at fair value	586,675	523,906
Other debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,056	3,999
Gross Unrealized Gains	4,783	4,092
Gross Unrealized Losses	0	0
Investment securities available for sale, at fair value	$ 8,839	$ 8,091

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Investment Securities (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) security	Sep. 30, 2016 security	Sep. 30, 2017 USD ($) security	Sep. 30, 2016 security	Dec. 31, 2016 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Number of held-to-maturity securities	1		1		1
Investment securities held to maturity | $	$ 10,000		$ 10,000		$ 10,000
Weighted average life of investment portfolio (in Duration)			4 years 10 months 24 days
Effective duration of investment portfolio (in Duration)			1 year 8 months 5 days
Available-for-sale Securities Pledged as Collateral | $	$ 2,500,000		$ 2,500,000		$ 1,800,000
Number of securities determined to be other than temporarily impaired during the period (in Securities)	0	2	0	2
Number of securities in unrealized loss positions (in Securities)	54		54
Number of securities which impairment considered insignificant (in Securities)	20		20
Available-for-sale securities, gross unrealized loss, considered insignificant | $	$ 237		$ 237
U.S. Government agency and sponsored enterprise residential MBS
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	8		8
U.S. Government agency and sponsored enterprise commercial MBS
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	4		4
US Government Agencies and sponsored enterprise MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of fixed-rate securities in unrealized loss positions	5		5
Number of variable-rate securities in unrealized loss positions	7		7
Private label residential mortgage-backed securities and CMOs
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	5		5
Private label commercial mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	4		4
Single family rental real estate-backed securities
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	2		2
State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss positions (in Securities)	11		11
Maximum [Member] | US Government Agencies and sponsored enterprise MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than)	1.00%		1.00%
Maximum [Member] | Private label residential mortgage-backed securities and CMOs
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than)	3.00%		3.00%
Maximum [Member] | Private label commercial mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than)	3.00%		3.00%
Maximum [Member] | Single family rental real estate-backed securities
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than)	2.00%		2.00%
Maximum [Member] | State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than)	5.00%		5.00%

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Investment Securities (Schedule of Maturities of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 684,986
Due after one year through five years, Amortized Cost	3,363,698
Due after five years through ten years, Amortized Cost	2,252,239
Due after ten years, Amortized Cost	429,387
Preferred stocks with no stated maturity	60,716
Amortized Cost	6,791,026	$ 5,996,203
Due in one year or less, Fair Value	697,034
Due after one year through five years, Fair Value	3,406,609
Due after five years through ten years, Fair Value	2,282,220
Due after ten years, Fair Value	436,893
Preferred Stocks with no stated maturity, Fair Value	70,716
Fair Value	$ 6,893,472	$ 6,073,584

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Investment Securities (Schedule of Gains and Losses on the Sale and Exchange of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of investment securities available for sale	$ 399,430	$ 259,571	$ 827,353	$ 753,756
Gross realized gains	28,261	3,471	30,553	10,528
Gross realized losses	(1,330)	0	(1,359)	0
Net realized gain	26,931	3,471	29,194	10,528
OTTI	0	(463)	0	(463)
Gain on investment securities available for sale, net	$ 26,931	$ 3,008	$ 29,194	$ 10,065

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Investment Securities (Schedule of the Aggregate Fair Value and Amount by which Amortized Cost Exceeds Fair Value for Investment Securities that are in Unrealized Loss Positions) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 936,926	$ 1,383,990
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(7,427)	(22,752)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	47,863	515,566
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(431)	(3,673)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	984,789	1,899,556
Gross Unrealized Losses	(7,858)	(26,425)
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	24,957
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(12)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	24,957
Gross Unrealized Losses	(12)	0
U.S. Government agency and sponsored enterprise residential MBS
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	460,806	191,463
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(425)	(628)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,544	112,391
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(266)	(1,080)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	470,350	303,854
Gross Unrealized Losses	(691)	(1,708)
U.S. Government agency and sponsored enterprise commercial MBS
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	55,152	89,437
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,783)	(2,838)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	14,270	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(30)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	69,422	89,437
Gross Unrealized Losses	(1,813)	(2,838)
Private label residential mortgage-backed securities and CMOs
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	72,557	122,142
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(217)	(1,680)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	5,820	8,074
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(118)	(328)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	78,377	130,216
Gross Unrealized Losses	(335)	(2,008)
Private label commercial mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	124,664	169,535
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,510)	(2,370)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	24,985
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(15)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	124,664	194,520
Gross Unrealized Losses	(1,510)	(2,385)
Single family rental real estate-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,708	139,867
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(112)	(842)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	176,057
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(994)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	14,708	315,924
Gross Unrealized Losses	(112)	(1,836)
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		69,598
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(402)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		173,983
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(848)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		243,581
Gross Unrealized Losses	0	(1,250)
Non-mortgage asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		139,477
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(2,926)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		139,477
Gross Unrealized Losses	0	(2,926)
Preferred stocks
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		10,087
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(4)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		10,087
Gross Unrealized Losses	0	(4)
State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	184,082	448,180
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(3,368)	(11,049)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	184,082	448,180
Gross Unrealized Losses	(3,368)	(11,049)
SBA securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	4,204
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(13)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	18,229	20,076
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(17)	(408)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	18,229	24,280
Gross Unrealized Losses	$ (17)	$ (421)

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Loans and Allowance for Loan and Lease Losses (Schedule of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 20,028,032	$ 18,732,711
Loans, gross	20,570,325	19,353,257
Non-covered premiums, discounts and deferred fees and costs, net	44,422	48,641
Premiums, discounts and deferred fees and costs, net	40,105	42,137
Non-covered loans, net of premiums, discounts and deferred fees and costs	20,072,454	18,781,352
Covered loans net of premiums, discounts and deferred fees and costs	537,976	614,042
Loans net of premiums, discounts and deferred fees and costs	20,610,430	19,395,394
Non-covered Allowance for loan and lease losses	(153,725)	(150,853)
Allowance for loan and lease losses	(158,573)	(152,953)
Non-covered loans, net	19,918,729	18,630,499
Loans, net	$ 20,451,857	$ 19,242,441
Percent of Total	100.00%	100.00%
1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 3,958,205	$ 3,422,425
Loans, gross	$ 4,457,094	$ 3,991,448
Percent of Total	21.70%	20.60%
Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 1,644	$ 1,120
Loans, gross	$ 45,048	$ 52,643
Percent of Total	0.20%	0.30%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 20,166	$ 24,365
Loans, gross	20,166	24,365
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 20,124	$ 24,306
Percent of Total	0.10%	0.10%
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 3,980,015	$ 3,447,910
Loans, gross	4,522,308	4,068,456
Covered loans net of premiums, discounts and deferred fees and costs	$ 537,976	$ 614,042
Percent of Total	22.00%	21.00%
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 3,358,801	$ 3,824,973
Loans, gross	3,358,801	3,824,973
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 3,362,261	$ 3,829,674
Percent of Total	16.30%	19.80%
Commercial real estate, Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 4,183,275	$ 3,739,235
Loans, gross	4,183,275	3,739,235
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 4,173,569	$ 3,731,808
Percent of Total	20.40%	19.30%
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 271,994	$ 311,436
Loans, gross	271,994	311,436
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 271,456	$ 310,913
Percent of Total	1.30%	1.60%
Commercial real estate, Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 1,959,464	$ 1,736,858
Loans, gross	1,959,464	1,736,858
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 1,956,749	$ 1,735,850
Percent of Total	9.50%	9.00%
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 3,900,290	$ 3,391,614
Loans, gross	$ 3,900,290	$ 3,391,614
Percent of Total	19.00%	17.50%
Commercial Lending Subsidiaries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 2,374,193	$ 2,280,685
Loans, gross	2,374,193	2,280,685
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 2,382,725	$ 2,290,194
Percent of Total	11.50%	11.80%
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 16,048,017	$ 15,284,801
Loans, gross	16,048,017	15,284,801
Non-covered loans, net of premiums, discounts and deferred fees and costs	16,038,842	15,285,577
Covered loans net of premiums, discounts and deferred fees and costs	$ 0	$ 0
Percent of Total	78.00%	79.00%
ACI Loans, Non-Covered | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-covered loans, gross	$ 38,000	$ 47,000
ACI Loans, Covered
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	475,940	536,242
Covered loans net of premiums, discounts and deferred fees and costs	475,940	536,242
Covered Allowance for loan and lease losses	(1,812)	0
Covered loans, net	474,128	536,242
ACI Loans, Covered | 1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	470,300	532,348
ACI Loans, Covered | Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	5,640	3,894
ACI Loans, Covered | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	475,940	536,242
Non-ACI
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	66,353	84,304
Covered premiums, discounts and deferred fees and costs, net	(4,317)	(6,504)
Covered loans net of premiums, discounts and deferred fees and costs	62,036	77,800
Covered Allowance for loan and lease losses	(3,036)	(2,100)
Covered loans, net	59,000	75,700
Non-ACI | 1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	28,589	36,675
Non-ACI | Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	37,764	47,629
Non-ACI | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans, gross	$ 66,353	$ 84,304

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Loans and Allowance for Loan and Lease Losses (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	$ 20,028,032		$ 20,028,032			$ 18,732,711
Purchases of loans			949,294	$ 936,882
Unpaid principal balance of real estate loans pledged as security for FHLB advances	10,500,000		10,500,000
Recorded investment of real estate loans pledged as security for FHLB advances	9,900,000		9,900,000
Unpaid principal balance of ACI loans	1,200,000		1,200,000			1,500,000
Financing Receivable, Allowance for Credit Losses	158,573	$ 154,476	158,573	154,476	$ 155,648	152,953	$ 135,718	$ 125,828
Impaired Financing Receivable, Interest Income, Accrual Method	2,900		8,300
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	1,400	1,100	3,700	2,300
1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	3,958,205		3,958,205			3,422,425
Purchases of loans	312,418	355,000	949,294	936,882
Unallocated Financing Receivables [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	5,000		5,000		0	0
Commercial real estate, Owner occupied
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	1,959,464		1,959,464			1,736,858
Commercial Lending Subsidiaries
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	2,374,193		2,374,193			2,280,685
Capital Leases, Net Investment in Direct Financing Leases	680,000		680,000			643,000
Commercial
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	16,048,017		16,048,017			15,284,801
Financing Receivable, Allowance for Credit Losses	139,353	140,750	139,353	140,750	142,098	141,450	123,303	109,617
The value below which non accrual status commercial relationships may be evaluated for impairment at management's discretion			1,000
Residential
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	3,980,015		3,980,015			3,447,910
Financing Receivable, Allowance for Credit Losses	14,220	$ 13,726	14,220	$ 13,726	$ 13,550	11,503	$ 12,415	$ 16,211
Mortgage Loans in Process of Foreclosure, Amount	13,000		13,000			8,000
ACI Loans, Non-Covered | Commercial
Financing Receivable Investment Past Due [Line Items]
Loans and Leases Receivable, Gross	38,000		38,000			47,000
Non-Covered [Domain]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	800		800			1,600
ACI loans | Residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	18,000		18,000			15,825
Covered [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	4,848		4,848			2,100
Covered [Member] | Unallocated Financing Receivables [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	0		0
Covered [Member] | Commercial
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	0		0			0
Covered [Member] | Residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	4,848		4,848			2,100
Other Real Estate, Foreclosed Assets, and Repossessed Assets	4,000		4,000			5,000
Covered [Member] | ACI loans
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	1,812		1,812			0
Covered [Member] | ACI loans | Commercial
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	0		0			0
Covered [Member] | ACI loans | Residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Allowance for Credit Losses	1,812		1,812			$ 0
Minimum | Commercial
Financing Receivable Investment Past Due [Line Items]
The value at which non accrual status commercial relationships are evaluated for impairment			1,000
Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually	1,000		1,000
Maximum [Member] | Commercial
Financing Receivable Investment Past Due [Line Items]
Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually	$ 3,000		$ 3,000

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Loans and Allowance for Loan and Lease Losses (Schedule for Accretable Yield Rollforward) (Details) - ACI loans - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning Balance	$ 675,385	$ 902,565
Reclassifications from non-accretable difference	72,827	76,751
Accretion	(226,251)	(303,931)
Ending Balance	$ 521,961	$ 675,385

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Loans and Allowance for Loan and Lease Losses (Schedule of Sold Covered Residential Loans to Third Parties on a Non-recourse Basis) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain (Loss) on Sale of Covered Loans	$ 2,447	$ (7,947)	$ 6,601	$ (7,360)
Gain on FDIC indemnification, net		8,026	1,266	11,958
Covered [Member] | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
UPB of loans sold		61,406	123,737	176,958
Cash proceeds, net of transaction costs		37,047	98,404	120,537
Recorded investment in loans sold		47,080	99,986	135,432
Gain (Loss) on Sale of Covered Loans		$ (10,033)	$ (1,582)	$ (14,895)

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Loans and Allowance for Loan and Lease Losses (Allowance for Credit Losses on Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable Allowance for Credit Losses [Line Items]
Covered loans net of premiums, discounts and deferred fees and costs	$ 537,976		$ 537,976			$ 614,042
Document Fiscal Year Focus			2017
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	37,854	$ 24,408	$ 63,573	$ 42,449
Charge-offs	(36,028)	(6,862)	(61,089)	(16,834)
Recoveries	1,099	1,212	3,136	3,033
Financing Receivable, Allowance for Credit Losses	158,573	154,476	158,573	154,476	$ 155,648	152,953	$ 135,718	$ 125,828
Loans net of premiums, discounts and deferred fees and costs	20,610,430		20,610,430			19,395,394
Non-covered loans, net of premiums, discounts and deferred fees and costs	20,072,454		20,072,454			18,781,352
Residential
Financing Receivable Allowance for Credit Losses [Line Items]
Covered loans net of premiums, discounts and deferred fees and costs	537,976		537,976			614,042
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	631	1,544	2,686	(1,494)
Charge-offs	0	(247)	55	(1,086)
Recoveries	39	14	86	95
Financing Receivable, Allowance for Credit Losses	14,220	13,726	14,220	13,726	13,550	11,503	12,415	16,211
Commercial
Financing Receivable Allowance for Credit Losses [Line Items]
Covered loans net of premiums, discounts and deferred fees and costs	0		0			0
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	32,223	22,864	55,887	43,943
Charge-offs	(36,028)	(6,615)	(61,034)	(15,748)
Recoveries	1,060	1,198	3,050	2,938
Financing Receivable, Allowance for Credit Losses	139,353	140,750	139,353	140,750	142,098	141,450	$ 123,303	$ 109,617
Non-covered loans, net of premiums, discounts and deferred fees and costs	16,038,842		16,038,842			15,285,577
Unallocated Financing Receivables [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	5,000		5,000
Charge-offs	0		0
Financing Receivable, Allowance for Credit Losses	5,000		5,000		$ 0	0
ACI loans
Allowance for Loan and Lease Losses [Roll Forward]
Loans net of premiums, discounts and deferred fees and costs	475,940		475,940			536,242
Non-covered loans, net of premiums, discounts and deferred fees and costs	37,932		37,932			46,945
ACI loans | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0		0			7
ACI loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Non-covered loans, net of premiums, discounts and deferred fees and costs	37,932		37,932			46,938
Non-ACI loans
Allowance for Loan and Lease Losses [Roll Forward]
Loans individually evaluated for impairment, balance	11,721		11,721			12,396
Loans collectively evaluated for impairment, balance	50,315		50,315			65,404
New Loans
Allowance for Loan and Lease Losses [Roll Forward]
Loans individually evaluated for impairment, balance	211,275		211,275			177,493
Loans collectively evaluated for impairment, balance	19,823,247		19,823,247			18,556,914
Covered [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	261	(445)	2,693	(1,119)
Charge-offs	0	(247)	(55)	(1,086)
Recoveries	38	24	110	122
Financing Receivable, Allowance for Credit Losses	4,848		4,848			2,100
Covered [Member] | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	268	(430)	2,738	(1,074)
Charge-offs	0	(247)	55	(1,086)
Recoveries	31	9	65	77
Financing Receivable, Allowance for Credit Losses	4,848		4,848			2,100
Covered [Member] | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	(7)	(15)	(45)	(45)
Charge-offs	0	0	0	0
Recoveries	7	15	45	45
Financing Receivable, Allowance for Credit Losses	0		0			0
Covered [Member] | Unallocated Financing Receivables [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	0		0
Covered [Member] | ACI loans
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	1,812		1,812			0
Covered [Member] | ACI loans | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	1,812		1,812			0
Loans net of premiums, discounts and deferred fees and costs	475,940		475,940			536,242
Covered [Member] | ACI loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	0		0			0
Loans net of premiums, discounts and deferred fees and costs	0		0			0
Covered [Member] | Non-ACI loans
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	1,024		1,024			529
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,012		2,012			1,571
Covered [Member] | Non-ACI loans | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	1,024		1,024			529
Loans individually evaluated for impairment, balance	11,721		11,721			12,396
Loans collectively evaluated for impairment, balance	50,315		50,315			65,404
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,012		2,012			1,571
Covered [Member] | Non-ACI loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	0		0			0
Loans individually evaluated for impairment, balance	0		0			0
Loans collectively evaluated for impairment, balance	0		0			0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	0		0			0
Non-Covered [Domain]
Financing Receivable Allowance for Credit Losses [Line Items]
Allowance related to the impact of hurricanes	5,425		5,425
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	37,593	24,853	60,880	43,568
Charge-offs	(36,028)	(6,615)	(61,034)	(15,748)
Recoveries	1,061	1,188	3,026	2,911
Financing Receivable, Allowance for Credit Losses	153,725		153,725			150,853
Non-Covered [Domain] | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	363	1,974	(52)	(420)
Charge-offs	0		0
Recoveries	8	5	21	18
Financing Receivable, Allowance for Credit Losses	9,372		9,372			9,403
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,033,612		4,033,612			3,495,775
Non-Covered [Domain] | Commercial
Financing Receivable Allowance for Credit Losses [Line Items]
Allowance related to the impact of hurricanes	425		425
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	32,230	22,879	55,932	43,988
Charge-offs	(36,028)	(6,615)	(61,034)	(15,748)
Recoveries	1,053	$ 1,183	3,005	$ 2,893
Financing Receivable, Allowance for Credit Losses	139,353		139,353			141,450
Non-covered loans, net of premiums, discounts and deferred fees and costs	16,038,842		16,038,842			15,285,577
Non-Covered [Domain] | Unallocated Financing Receivables [Member]
Financing Receivable Allowance for Credit Losses [Line Items]
Allowance related to the impact of hurricanes	5,000		5,000
Allowance for Loan and Lease Losses [Roll Forward]
Provision for (recovery of) loan losses	5,000		5,000
Financing Receivable, Allowance for Credit Losses	5,000		5,000
Non-Covered [Domain] | New Loans
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	23,973		23,973			19,241
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	129,752		129,752			131,612
Non-Covered [Domain] | New Loans | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	71		71			12
Loans individually evaluated for impairment, balance	911		911			561
Loans collectively evaluated for impairment, balance	4,032,701		4,032,701			3,495,207
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	9,301		9,301			9,391
Non-Covered [Domain] | New Loans | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Allowance, balance, loans individually evaluated for impairment	23,902		23,902			19,229
Loans individually evaluated for impairment, balance	210,364		210,364			176,932
Loans collectively evaluated for impairment, balance	15,790,546		15,790,546			15,061,707
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	115,451		115,451			$ 122,221
Non-Covered [Domain] | New Loans | Unallocated Financing Receivables [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	$ 5,000		$ 5,000

XML

Loans and Allowance for Loan and Lease Losses (Impaired Financing Receivables) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable Impaired [Line Items]
Recorded Investment, Total	$ 211,275	$ 178,828
UPB, Total	211,580	178,707
Related Specific Allowance, Impaired loans	23,973	19,241
1-4 single family residential
Financing Receivable Impaired [Line Items]
Recorded Investment, With a specific allowance recorded	884	561
UPB, With a specific allowance recorded	863	546
Related Specific Allowance, Impaired loans	71	12
Commercial real estate, Non-owner occupied
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	9,041	510
UPB, With no specific allowance recorded	9,224	512
Construction and land
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	1,238	1,238
UPB, With no specific allowance recorded	1,238	1,238
Commercial real estate, Owner occupied
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	16,786	16,834
Recorded Investment, With a specific allowance recorded	3,961	491
UPB, With no specific allowance recorded	16,949	16,894
UPB, With a specific allowance recorded	3,943	513
Related Specific Allowance, Impaired loans	2,994	263
Taxi medallion [Member]
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	20,320	18,107
Recorded Investment, With a specific allowance recorded	100,252	73,131
UPB, With no specific allowance recorded	20,321	18,107
UPB, With a specific allowance recorded	100,255	73,147
Related Specific Allowance, Impaired loans	13,117	5,948
Other Commercial and industrial [Member]
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	1,081	6,172
Recorded Investment, With a specific allowance recorded	41,297	29,452
UPB, With no specific allowance recorded	1,095	6,172
UPB, With a specific allowance recorded	41,292	29,463
Related Specific Allowance, Impaired loans	7,313	9,168
Commercial Lending Subsidiaries
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	12,810	10,620
Recorded Investment, With a specific allowance recorded	3,578	21,712
UPB, With no specific allowance recorded	12,815	10,510
UPB, With a specific allowance recorded	3,553	21,605
Related Specific Allowance, Impaired loans	478	3,850
Commercial
Financing Receivable Impaired [Line Items]
Recorded Investment, Total	210,364	178,267
UPB, Total	210,685	178,161
Related Specific Allowance, Impaired loans	23,902	19,229
Residential
Financing Receivable Impaired [Line Items]
Recorded Investment, Total	911	561
UPB, Total	895	546
Related Specific Allowance, Impaired loans	71	12
New Loans | 1-4 single family residential
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	27	0
UPB, With no specific allowance recorded	32	0
Non-ACI loans
Financing Receivable Impaired [Line Items]
Recorded Investment, Total	11,721	12,396
UPB, Total	12,184	12,995
Related Specific Allowance, Impaired loans	1,024	529
Non-ACI loans | 1-4 single family residential
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	102	1,169
Recorded Investment, With a specific allowance recorded	2,221	1,272
UPB, With no specific allowance recorded	118	1,391
UPB, With a specific allowance recorded	2,579	1,514
Related Specific Allowance, Impaired loans	208	181
Non-ACI loans | Home equity loans and lines of credit
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	1,312	2,255
Recorded Investment, With a specific allowance recorded	8,086	7,700
UPB, With no specific allowance recorded	1,324	2,286
UPB, With a specific allowance recorded	8,163	7,804
Related Specific Allowance, Impaired loans	816	348
Non-ACI loans | Residential
Financing Receivable Impaired [Line Items]
Recorded Investment, Total	11,721	12,396
UPB, Total	12,184	12,995
Related Specific Allowance, Impaired loans	1,024	529
ACI loans
Financing Receivable Impaired [Line Items]
Recorded Investment, With a specific allowance recorded	5,640	0
UPB, With a specific allowance recorded	27,731	0
Related Specific Allowance, Impaired loans	1,812	0
ACI loans | Home equity loans and lines of credit
Financing Receivable Impaired [Line Items]
Recorded Investment, With a specific allowance recorded	5,640	0
UPB, With a specific allowance recorded	27,731	0
Related Specific Allowance, Impaired loans	1,812	0
ACI loans | Commercial real estate, Owner occupied
Financing Receivable Impaired [Line Items]
Recorded Investment, With no specific allowance recorded	$ 0	$ 1,300

XML

Loans and Allowance for Loan and Lease Losses Loans and Allowance for Loan and Lease Losses (Schedule of Average Recorded Investment in Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	$ 221,657	$ 138,507	$ 206,900	$ 99,633
1-4 single family residential | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	962	344	800	251
1-4 single family residential | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	2,304	3,001	2,369	3,186
1-4 single family residential | ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	0	0	0	0
Home equity loans and lines of credit | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	0	0	0	0
Home equity loans and lines of credit | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	9,533	9,551	9,638	8,920
Home equity loans and lines of credit | ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	5,166	0	4,209	0
Residential | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	962	344	800	251
Residential | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	11,837	12,552	12,007	12,106
Residential | ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	5,166	0	4,209	0
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	1,359	0	1,816	0
Commercial real estate, Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	8,216	506	4,056	776
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	2,797	1,285	3,317	650
Commercial real estate, Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	20,579	18,231	18,872	13,711
Taxi medallion [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	123,867	56,125	107,529	30,977
Other Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	42,479	48,143	43,308	41,975
Commercial Lending Subsidiaries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	21,398	13,873	27,202	11,293
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average recorded investment in impaired loans	$ 220,695	$ 138,163	$ 206,100	$ 99,382

XML

Loans and Allowance for Loan and Lease Losses (Schedule of Recorded Investment in New and Non-ACI Loans on Non-Accrual Status) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 199,611	$ 131,145
1-4 single family residential | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,890	566
1-4 single family residential | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	934	918
Home equity loans and lines of credit | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Home equity loans and lines of credit | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,369	2,283
Consumer | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	332	2
Residential | New Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,222	568
Residential | Non-ACI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,303	3,201
Commercial real estate, Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	9,930	559
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,238	1,238
Commercial real estate, Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	21,455	19,439
Taxi medallion [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	120,572	60,660
Other Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	27,569	16,036
Commercial Lending Subsidiaries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	16,625	32,645
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 197,389	$ 130,577

XML

Loans and Allowance for Loan and Lease Losses (Schedule of Credit Exposure for New Loans Based on Original LTV and FICO Score) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 20,072,454	$ 18,781,352
New Loans | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,011,844	3,470,349
New Loans | FICO, 720 or less | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	352,968	300,353
New Loans | FICO, 721 to 740 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	408,158	365,262
New Loans | FICO, 741 to 760 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	667,489	579,743
New Loans | FICO, 761 or greater | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	2,583,229	2,224,991
60% or less | New Loans | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,210,672	1,115,395
60% or less | New Loans | FICO, 720 or less | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	94,357	87,035
60% or less | New Loans | FICO, 721 to 740 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	111,279	113,401
60% or less | New Loans | FICO, 741 to 760 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	185,614	163,668
60% or less | New Loans | FICO, 761 or greater | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	819,422	751,291
60% - 70% | New Loans | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	922,932	823,436
60% - 70% | New Loans | FICO, 720 or less | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	93,963	80,694
60% - 70% | New Loans | FICO, 721 to 740 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	102,461	94,592
60% - 70% | New Loans | FICO, 741 to 760 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	140,350	124,180
60% - 70% | New Loans | FICO, 761 or greater | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	586,158	523,970
70% - 80% | New Loans | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,722,143	1,442,595
70% - 80% | New Loans | FICO, 720 or less | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	139,923	110,509
70% - 80% | New Loans | FICO, 721 to 740 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	173,808	148,211
70% - 80% | New Loans | FICO, 741 to 760 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	316,544	276,425
70% - 80% | New Loans | FICO, 761 or greater | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,091,868	907,450
More than 80% | New Loans | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	156,097	88,923
More than 80% | New Loans | FICO, 720 or less | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	24,725	22,115
More than 80% | New Loans | FICO, 721 to 740 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	20,610	9,058
More than 80% | New Loans | FICO, 741 to 760 | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	24,981	15,470
More than 80% | New Loans | FICO, 761 or greater | 1-4 single family residential
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 85,781	$ 42,280

XML

Loans and Allowance for Loan and Lease Losses (Schedule of Commercial Credit Exposure Based on Internal Risk Ratings) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 20,072,454	$ 18,781,352
Multi-family
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,362,261	3,829,674
Multi-family | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,299,753	3,811,822
Multi-family | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	32,255	12,000
Multi-family | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	30,253	5,852
Multi-family | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	0
Commercial real estate, Non-owner occupied
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,173,569	3,731,808
Commercial real estate, Non-owner occupied | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,069,749	3,694,931
Commercial real estate, Non-owner occupied | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	12,824	7,942
Commercial real estate, Non-owner occupied | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	90,996	28,935
Commercial real estate, Non-owner occupied | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	0
Construction and land
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	271,456	310,913
Construction and land | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	265,921	309,675
Construction and land | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	0
Construction and land | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	5,535	1,238
Construction and land | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	0
Commercial real estate, Owner occupied
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,956,749	1,735,850
Commercial real estate, Owner occupied | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,890,785	1,672,199
Commercial real estate, Owner occupied | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	31,495	33,274
Commercial real estate, Owner occupied | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	31,460	30,377
Commercial real estate, Owner occupied | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,009	0
Taxi medallion [Member]
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	120,572	178,673
Taxi medallion [Member] | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	40,460
Taxi medallion [Member] | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	0
Taxi medallion [Member] | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	120,572	138,035
Taxi medallion [Member] | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	178
Other Commercial and industrial [Member]
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,771,510	3,208,465
Other Commercial and industrial [Member] | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,666,227	3,112,590
Other Commercial and industrial [Member] | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	38,389	19,009
Other Commercial and industrial [Member] | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	64,087	68,704
Other Commercial and industrial [Member] | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	2,807	8,162
Commercial Lending Subsidiaries
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	2,382,725	2,290,194
Commercial Lending Subsidiaries | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	2,313,152	2,255,444
Commercial Lending Subsidiaries | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	35,936	0
Commercial Lending Subsidiaries | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	33,637	31,572
Commercial Lending Subsidiaries | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	0	3,178
Commercial
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	16,038,842	15,285,577
Commercial | Pass
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	15,505,587	14,897,121
Commercial | Special mention
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	150,899	72,225
Commercial | Substandard
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	376,540	304,713
Commercial | Doubtful
Financing Receivable Recorded Investment [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	$ 5,816	$ 11,518

XML

Loans and Allowance for Loan and Lease Losses (Schedule of Financing Receivables Past Due) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable Investment Past Due [Line Items]
Loans, Current	$ 20,027,206	$ 18,699,976
Covered loans net of premiums, discounts and deferred fees and costs	537,976	614,042
Non-covered loans, net of premiums, discounts and deferred fees and costs	20,072,454	18,781,352
Consumer
Financing Receivable Investment Past Due [Line Items]
Loans, Current	19,623	24,306
Non-covered loans, net of premiums, discounts and deferred fees and costs	20,124	24,306
Multi-family
Financing Receivable Investment Past Due [Line Items]
Loans, Current	3,362,261	3,829,674
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,362,261	3,829,674
Commercial real estate, Non-owner occupied
Financing Receivable Investment Past Due [Line Items]
Loans, Current	4,171,880	3,730,470
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,173,569	3,731,808
Construction and land
Financing Receivable Investment Past Due [Line Items]
Loans, Current	270,218	309,675
Non-covered loans, net of premiums, discounts and deferred fees and costs	271,456	310,913
Commercial real estate, Owner occupied
Financing Receivable Investment Past Due [Line Items]
Loans, Current	1,947,728	1,726,826
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,956,749	1,735,850
Taxi medallion [Member]
Financing Receivable Investment Past Due [Line Items]
Loans, Current	107,325	137,856
Non-covered loans, net of premiums, discounts and deferred fees and costs	120,572	178,673
Other Commercial and industrial [Member]
Financing Receivable Investment Past Due [Line Items]
Loans, Current	3,769,065	3,198,008
Non-covered loans, net of premiums, discounts and deferred fees and costs	3,771,510	3,208,465
Commercial Lending Subsidiaries
Financing Receivable Investment Past Due [Line Items]
Loans, Current	2,382,725	2,284,435
Non-covered loans, net of premiums, discounts and deferred fees and costs	2,382,725	2,290,194
New Loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Loans, Current	3,994,758	3,457,606
Non-covered loans, net of premiums, discounts and deferred fees and costs	4,011,844	3,470,349
New Loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Loans, Current	1,623	1,120
Non-covered loans, net of premiums, discounts and deferred fees and costs	1,644	1,120
Non-ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Loans, Current	23,002	29,406
Covered loans net of premiums, discounts and deferred fees and costs	24,627	30,805
Non-ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Loans, Current	33,263	43,129
Covered loans net of premiums, discounts and deferred fees and costs	37,409	46,995
Non-ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Loans, Current	56,265	72,535
Covered loans net of premiums, discounts and deferred fees and costs	62,036	77,800
ACI loans
Financing Receivable Investment Past Due [Line Items]
Non-covered loans, net of premiums, discounts and deferred fees and costs	37,932	46,945
ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Loans, Current	436,051	500,272
Covered loans net of premiums, discounts and deferred fees and costs	470,300	532,348
ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Loans, Current	4,876	3,460
Covered loans net of premiums, discounts and deferred fees and costs	5,640	3,894
ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Loans, Current	440,927	503,732
Covered loans net of premiums, discounts and deferred fees and costs	475,940	536,242
30 - 59 Days Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	17,375	22,230
30 - 59 Days Past Due | Consumer
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	500	0
30 - 59 Days Past Due | Multi-family
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
30 - 59 Days Past Due | Commercial real estate, Non-owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	754
30 - 59 Days Past Due | Construction and land
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
30 - 59 Days Past Due | Commercial real estate, Owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,261	1,557
30 - 59 Days Past Due | Taxi medallion [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	7,037
30 - 59 Days Past Due | Other Commercial and industrial [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,629	2,515
30 - 59 Days Past Due | Commercial Lending Subsidiaries
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	12
30 - 59 Days Past Due | New Loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	13,964	10,355
30 - 59 Days Past Due | New Loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	21	0
30 - 59 Days Past Due | Non-ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	691	481
30 - 59 Days Past Due | Non-ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,114	1,255
30 - 59 Days Past Due | Non-ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,805	1,736
30 - 59 Days Past Due | ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	14,126	13,524
30 - 59 Days Past Due | ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	89	148
30 - 59 Days Past Due | ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	14,215	13,672
60 - 89 Days Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3,571	9,886
60 - 89 Days Past Due | Consumer
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Multi-family
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Commercial real estate, Non-owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Construction and land
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Commercial real estate, Owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	266	797
60 - 89 Days Past Due | Taxi medallion [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,803	4,563
60 - 89 Days Past Due | Other Commercial and industrial [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	58	954
60 - 89 Days Past Due | Commercial Lending Subsidiaries
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	3,247
60 - 89 Days Past Due | New Loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	444	325
60 - 89 Days Past Due | New Loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Non-ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
60 - 89 Days Past Due | Non-ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	663	534
60 - 89 Days Past Due | Non-ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	663	534
60 - 89 Days Past Due | ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,549	2,990
60 - 89 Days Past Due | ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	40	23
60 - 89 Days Past Due | ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,589	3,013
90 Days or More Past Due
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	24,302	49,260
90 Days or More Past Due | Consumer
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1	0
90 Days or More Past Due | Multi-family
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
90 Days or More Past Due | Commercial real estate, Non-owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,689	584
90 Days or More Past Due | Construction and land
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,238	1,238
90 Days or More Past Due | Commercial real estate, Owner occupied
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	7,494	6,670
90 Days or More Past Due | Taxi medallion [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	10,444	29,217
90 Days or More Past Due | Other Commercial and industrial [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	758	6,988
90 Days or More Past Due | Commercial Lending Subsidiaries
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	2,500
90 Days or More Past Due | New Loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,678	2,063
90 Days or More Past Due | New Loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
90 Days or More Past Due | Non-ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	934	918
90 Days or More Past Due | Non-ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,369	2,077
90 Days or More Past Due | Non-ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3,303	2,995
90 Days or More Past Due | ACI loans | 1-4 single family residential
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	17,574	15,562
90 Days or More Past Due | ACI loans | Home equity loans and lines of credit
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	635	$ 263
90 Days or More Past Due | ACI loans | Residential Mortgage [Member]
Financing Receivable Investment Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 18,209

XML

Loans and Allowance for Loan and Lease Losses Loans and Allowance for Loan and Lease Losses (Schedule of Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	16	26	119	75
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 6,417	$ 36,424	$ 92,624	$ 92,028
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	8	9	10	9
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 2,374	$ 7,604	$ 3,778	$ 7,604
1-4 single family residential
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			4	1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 351	$ 107
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 269	$ 0
Commercial real estate, Non-owner occupied
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			1	0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 5,389	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0	$ 0
Commercial real estate, Owner occupied
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	2	3
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 491	$ 4,522	$ 5,225
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Taxi medallion [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	15	18	97	58
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 5,439	$ 29,854	$ 48,692	$ 57,341
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	6	8	8	8
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 2,105	$ 4,104	$ 3,509	$ 4,104
Other Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	2	14	7
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 978	$ 1,646	$ 20,860	$ 21,422
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0		$ 0	$ 3,500
Commercial Lending Subsidiaries
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	5	1	6
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 4,433	$ 12,810	$ 7,933
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 3,500	$ 0	$ 0
New Loans | 1-4 single family residential
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 269	$ 0
Non-ACI loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	10	5	16
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,671	$ 939	$ 2,293
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 70	$ 0	$ 70	$ 0
Non-ACI loans | Home equity loans and lines of credit
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	10	5	16
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1,671	$ 939	$ 2,293
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 70	$ 0	$ 70	$ 0
ACI loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1	0	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 839	$ 0	$ 839
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 0	$ 0	$ 0

XML

FDIC Indemnification Asset (Gains and Losses Associated with Covered Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Guarantor Obligations [Line Items]
Recovery of (provision for) losses on covered loans	$ (37,854)	$ (24,408)	$ (63,573)	$ (42,449)
Income from resolution of covered assets, net	6,400	8,883	22,066	26,426
Covered [Member]
Guarantor Obligations [Line Items]
Recovery of (provision for) losses on covered loans	(261)	445	(2,693)	1,119
Income from resolution of covered assets, net	6,400	8,883	22,066	26,426
Loss on sale of covered loans	0	(10,033)	(1,582)	(14,895)
Loss on covered OREO	(35)	(552)	(65)	(957)
Gain (Loss) Associated With Covered Assets	6,104	(1,257)	17,726	11,693
Covered [Member] | Net Loss on FDIC Indemnification
Guarantor Obligations [Line Items]
Recovery of (provision for) losses on covered loans	215	(368)	2,095	(1,007)
Income from resolution of covered assets, net	(5,082)	(7,106)	(17,591)	(21,140)
Loss on sale of covered loans	0	8,026	1,266	11,958
Loss on covered OREO	29	441	56	779
Gain (Loss) Associated With Covered Assets	(4,838)	993	(14,174)	(9,410)
Covered [Member] | Net Impact on Pre-tax Earnings
Guarantor Obligations [Line Items]
Recovery of (provision for) losses on covered loans	(46)	77	(598)	112
Income from resolution of covered assets, net	1,318	1,777	4,475	5,286
Loss on sale of covered loans	0	(2,007)	(316)	(2,937)
Loss on covered OREO	(6)	(111)	(9)	(178)
Gain (Loss) Associated With Covered Assets	$ 1,266	$ (264)	$ 3,552	$ 2,283

XML

FDIC Indemnification Asset (Changes in the FDIC Indemnification Asset) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
FDIC Indemnification Asset [Roll Forward]
FDIC Indemnification Asset and Liability, net			$ 515,910	$ 739,843	$ 739,843
Amortization of FDIC indemnification asset	$ (45,225)	$ (38,957)	(135,351)	(116,711)	(160,091)
FDIC Indemnification Asset, Cash Payments Received			(16,768)		(46,083)
Net gain (loss) on FDIC indemnification	(4,838)	$ 993	(14,174)	$ (9,410)	(17,759)
FDIC Indemnification Asset and Liability, net	$ 349,617		$ 349,617		$ 515,910

XML

FDIC Indemnification Asset (Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
FDIC Indemnification Asset [Abstract]
FDIC indemnification asset	$ 349,617	$ 515,933
Other Liabilities	0	(23)
FDIC Indemnification Asset and Liability, net	$ 349,617	$ 515,910	$ 739,843

XML

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Tax Credit Carryforward [Line Items]
Effective Income Tax Rate Reconciliation, Percent	32.20%	31.70%	31.20%	33.24%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%		35.00%	35.00%
Amortization Method Qualified Affordable Housing Project Investments	$ 66		$ 66		$ 71
Qualified Affordable Housing Project Investments, Commitment	29		29		$ 53
Maximum Loss Exposure Amount, Affordable Housing VIEs	$ 73		$ 73

XML

Derivatives and Hedging Activities (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest rate derivative contracts centrally cleared through the CME	$ 0
Discontinuation of Cash Flow Hedge	0	$ 0
Gains and losses reported in AOCI that were reclassified into earnings as a result of discontinuance of cash flow hedges or early extinguishment of debt	0	$ 0
Amount expected to be reclassified from AOCI into income	6,200,000
Available for Sale Securities Pledged as Collateral for Interest Rate Swaps	40,000,000
Cash pledged as collateral for interest rate swaps	2,000,000
Financial collateral pledged by counterparties to Company	$ (1,539,000)		$ 0

XML

Derivatives and Hedging Activities (Interest Rate Contract Derivative Financial Instruments and Related Hedged Items) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Derivatives Fair Value [Line Items]
Notional amount of interest rate derivatives	$ 4,339,440	$ 4,217,114
Interest rate derivative assets, fair value	28,334	50,232
Interest rate derivative liabilities, fair value	$ (27,076)	$ (61,562)
Derivatives designated as cash flow hedges | Pay-Fixed Forward-Starting Swap - Borrowings
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)		3.43%
Weighted average remaining maturity of interest rate derivatives (in Duration)		10 years 5 months 15 days
Notional amount of interest rate derivatives		$ 300,000
Derivatives designated as cash flow hedges | Pay-Fixed Forward-Starting Swap - Borrowings | Other Liabilities
Derivatives Fair Value [Line Items]
Interest rate derivative liabilities, fair value		(27,866)
Derivatives designated as cash flow hedges | Pay-Fixed Forward-Starting Swap - Borrowings | Other Assets
Derivatives Fair Value [Line Items]
Interest rate derivative assets, fair value		$ 0
Derivatives designated as cash flow hedges | Pay-fixed interest rate swaps
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	1.77%	1.58%
Weighted average remaining maturity of interest rate derivatives (in Duration)	4 years 6 months 24 days	3 years 4 months 4 days
Notional amount of interest rate derivatives	$ 2,046,000	$ 1,715,000
Derivatives designated as cash flow hedges | Pay-fixed interest rate swaps | Other Liabilities
Derivatives Fair Value [Line Items]
Interest rate derivative liabilities, fair value	(259)	(3,112)
Derivatives designated as cash flow hedges | Pay-fixed interest rate swaps | Other Assets
Derivatives Fair Value [Line Items]
Interest rate derivative assets, fair value	$ 1,066	$ 19,648
Derivatives not designated as hedges | Pay-fixed interest rate swaps
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	3.86%	3.77%
Weighted average remaining maturity of interest rate derivatives (in Duration)	6 years 5 months 9 days	6 years 9 months
Notional amount of interest rate derivatives	$ 1,000,763	$ 912,000
Derivatives not designated as hedges | Pay-fixed interest rate swaps | Other Liabilities
Derivatives Fair Value [Line Items]
Interest rate derivative liabilities, fair value	(18,311)	(20,383)
Derivatives not designated as hedges | Pay-fixed interest rate swaps | Other Assets
Derivatives Fair Value [Line Items]
Interest rate derivative assets, fair value	$ 7,605	$ 9,949
Derivatives not designated as hedges | Pay-variable interest rate swaps
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	3.86%	3.77%
Weighted average remaining maturity of interest rate derivatives (in Duration)	6 years 5 months 9 days	6 years 9 months
Notional amount of interest rate derivatives	$ 1,000,763	$ 912,000
Derivatives not designated as hedges | Pay-variable interest rate swaps | Other Liabilities
Derivatives Fair Value [Line Items]
Interest rate derivative liabilities, fair value	(8,491)	(9,949)
Derivatives not designated as hedges | Pay-variable interest rate swaps | Other Assets
Derivatives Fair Value [Line Items]
Interest rate derivative assets, fair value	$ 19,648	$ 20,383
Derivatives not designated as hedges | Interest rate caps purchased, indexed to 1-month Libor [Domain]
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	2.80%	2.96%
Weighted average remaining maturity of interest rate derivatives (in Duration)	1 year 6 months 29 days	2 years 3 months 9 days
Notional amount of interest rate derivatives	$ 145,957	$ 189,057
Derivatives not designated as hedges | Interest rate caps purchased, indexed to 1-month Libor [Domain] | Other Assets
Derivatives Fair Value [Line Items]
Interest rate derivative assets, fair value	$ 15	$ 252
Derivatives not designated as hedges | Interest rate caps sold, indexed to 1-month Libor [Domain] [Domain]
Derivatives Fair Value [Line Items]
Weighted average fixed rate of interest rate derivatives (in Percent)	2.80%	2.96%
Weighted average remaining maturity of interest rate derivatives (in Duration)	1 year 6 months 29 days	2 years 3 months 9 days
Notional amount of interest rate derivatives	$ 145,957	$ 189,057
Derivatives not designated as hedges | Interest rate caps sold, indexed to 1-month Libor [Domain] [Domain] | Other Liabilities
Derivatives Fair Value [Line Items]
Interest rate derivative liabilities, fair value	$ (15)	$ (252)

XML

Derivatives and Hedging Activities (Interest Rate Swaps Subject to Master Netting Agreements) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts Recognized, Derivative assets	$ 8,686	$ 29,849
Gross Amounts Recognized, Derivative liabilities	(18,570)	(51,362)
Gross Amounts Recognized, Derivative assets and liabilities	(9,884)	(21,513)
Gross Amounts Offset in Balance Sheet, Derivative assets	0	0
Gross Amounts Offset in Balance Sheet, Derivative liabilities	0	0
Gross Amounts Offset in Balance Sheet, Derivative assets and liabilities	0	0
Net Amounts Presented in Balance Sheet, Derivative assets	8,686	29,849
Net Amounts Presented in Balance Sheet, Derivative liabilities	(18,570)	(51,362)
Net Amounts Presented in Balance Sheet, Derivative assets and liabilities	(9,884)	(21,513)
Gross Amounts Not Offset in Balance Sheet
Derivative Instruments, Derivative assets	(6,814)	(27,485)
Derivative Instruments, Derivative liabilities	6,814	27,485
Derivative Instruments, Derivative assets and liabilities	0	0
Collateral Pledged, Derivative assets	(1,539)	0
Collateral Pledged, Derivative liabilities	11,756	23,796
Collateral Pledged, Derivative assets and liabilities	10,217	23,796
Net Amount, Derivative assets	333	2,364
Net Amount, Derivative liabilities	0	(81)
Net Amount, Derivative assets and liabilities	$ 333	$ 2,283

XML

Derivatives and Hedging Activities Derivative and Hedging Activities - Amount of loss reclassified from AOCI into Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative and Hedging Activities - Amount of Loss Reclassified from AOCI into Income [Abstract]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	$ 2,001	$ 3,741	$ 7,463	$ 13,050

XML

Stockholders' Equity (Changes in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Unrealized gains on investment securities available for sale:
Net unrealized holding gain (loss) arising during the period, Before Tax	$ 14,144	$ 5,316	$ 54,258	$ 88,413
Amounts reclassified to gain on investment securities available for sale, net, Before Tax	(26,931)	(3,008)	(29,194)	(10,065)
Net change in unrealized gains on securities available for sale, Before Tax	(12,787)	2,308	25,064	78,348
Net unrealized holding gain (loss) arising during the period, Tax Effect	(5,587)	(2,100)	(21,432)	(34,923)
Amounts reclassified to gain on investment securities available for sale, net, Tax Effect	10,638	1,188	11,532	3,975
Net change in unrealized gains on securities available for sale, Tax Effect	5,051	(912)	(9,900)	(30,948)
Net unrealized holding gain (loss) arising during the period, Net of Tax	8,557	3,216	32,826	53,490
Amounts reclassified to gain on investment securities available for sale, net, Net of Tax	(16,293)	(1,820)	(17,662)	(6,090)
Net change in unrealized gains on securities available for sale	(7,736)	1,396	15,164	47,400
Unrealized losses on derivative instruments:
Net unrealized holding gain (loss) arising during the period, Before Tax	(281)	8,356	(13,780)	(57,765)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	2,001	3,741	7,463	13,050
Net change in unrealized losses on derivative instruments, Before Tax	1,720	12,097	(6,317)	(44,715)
Net unrealized holding gain (loss) arising during the period, Tax Effect	111	(3,301)	5,443	22,817
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(791)	(1,477)	(2,948)	(5,154)
Net change in unrealized losses on derivative instruments, Tax Effect	(680)	(4,778)	2,495	17,663
Net unrealized holding gain (loss) arising during the period, Net of Tax	(170)	5,055	(8,337)	(34,948)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(1,210)	(2,264)	(4,515)	(7,896)
Net change in unrealized losses on derivative instruments	1,040	7,319	(3,822)	(27,052)
Other comprehensive income (loss), Before Tax	(11,067)	14,405	18,747	33,633
Other comprehensive income (loss), Tax Effect	4,371	(5,690)	(7,405)	(13,285)
Other comprehensive income (loss)	$ (6,696)	$ 8,715	$ 11,342	$ 20,348

XML

Stockholders' Equity (Categories of Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance			$ 41,247	$ 22,182
Other comprehensive income (loss)	$ (6,696)	$ 8,715	11,342	20,348
Other comprehensive income, Ending Balance	52,589	42,530	52,589	42,530
Unrealized Gains on Investment Securities Available for Sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance			47,057	41,535
Other comprehensive income (loss)			15,164	47,400
Other comprehensive income, Ending Balance	62,221	88,935	62,221	88,935
Unrealized Losses on Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income, Beginning Balance			(5,810)	(19,353)
Other comprehensive income (loss)			(3,822)	(27,052)
Other comprehensive income, Ending Balance	$ (9,632)	$ (46,405)	$ (9,632)	$ (46,405)

XML

Equity Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 25.3
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)	$ 3.8
Unvested and restricted share awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	618,306	644,888
Stock Granted, Value, Share-based Compensation, Gross	$ 24.9	$ 20.0
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years	3 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 26.7
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 11 months 24 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	47,848	57,873
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards	$ 0.8
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	47,848	57,873
RSU and PSU Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 5.3
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 2 months 4 days
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	$ 2.6
Liability based awards settled in shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	25,321
Incentive Compensation Arrangements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 5.3
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 2 months 29 days
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	$ 1.2
Minimum | Unvested and restricted share awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 33.21	$ 29.78
Maximum [Member] | Unvested and restricted share awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 40.84	$ 33.76

XML

Equity Based Compensation (Schedule of Stock Options Activity) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	1,297,968,000	3,602,076,000
Number of Option Awards
Exercised (in Shares)	(2,304,108,000)
Weighted Average Exercise Price
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 26.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 26.81	$ 26.74

XML

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	$ 6,951,942	$ 6,150,975
Liabilities at fair value	27,076	61,562
Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	27,076	61,562
US Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	24,957	5,005
U.S. Government agency and sponsored enterprise residential MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	2,348,687	1,527,242
U.S. Government agency and sponsored enterprise commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	139,220	124,586
Private label residential mortgage-backed securities and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	527,858	375,098
Private label commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	1,153,601	1,187,624
Single family rental real estate-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	572,948	861,251
Collateralized loan obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	700,319	487,296
Non-mortgage asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	82,637	186,736
Preferred stocks
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	70,716	88,203
State and municipal obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	677,015	698,546
SBA securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	586,675	523,906
Other debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	8,839	8,091
Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	30,136	27,159
Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	28,334	50,232
Fair Value, Inputs, Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	94,995	91,895
Fair Value, Inputs, Level 1 | US Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	24,957	5,005
Fair Value, Inputs, Level 1 | Preferred stocks
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	70,038	86,890
Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	6,760,990	5,906,739
Liabilities at fair value	27,076	61,562
Fair Value, Inputs, Level 2 | Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	27,076	61,562
Fair Value, Inputs, Level 2 | U.S. Government agency and sponsored enterprise residential MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	2,348,687	1,527,242
Fair Value, Inputs, Level 2 | U.S. Government agency and sponsored enterprise commercial MBS
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	139,220	124,586
Fair Value, Inputs, Level 2 | Private label residential mortgage-backed securities and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	467,061	254,488
Fair Value, Inputs, Level 2 | Private label commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	1,153,601	1,187,624
Fair Value, Inputs, Level 2 | Single family rental real estate-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	572,948	861,251
Fair Value, Inputs, Level 2 | Collateralized loan obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	700,319	487,296
Fair Value, Inputs, Level 2 | Non-mortgage asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	82,637	186,736
Fair Value, Inputs, Level 2 | Preferred stocks
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	678	1,313
Fair Value, Inputs, Level 2 | State and municipal obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	677,015	698,546
Fair Value, Inputs, Level 2 | SBA securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	586,675	523,906
Fair Value, Inputs, Level 2 | Other debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	3,815	3,519
Fair Value, Inputs, Level 2 | Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	0	0
Fair Value, Inputs, Level 2 | Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	28,334	50,232
Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	95,957	152,341
Liabilities at fair value	0	0
Fair Value, Inputs, Level 3 | Derivative Financial Instruments, Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	0	0
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMOs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	60,797	120,610
Fair Value, Inputs, Level 3 | Other debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	5,024	4,572
Fair Value, Inputs, Level 3 | Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	30,136	27,159
Fair Value, Inputs, Level 3 | Derivative Financial Instruments, Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	$ 0	$ 0

XML

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair Value Inputs Assets Quantitative Information [Line Items]
Asset transfers			$ 0	$ 0
Assets, fair value	$ 6,951,942		6,951,942		$ 6,150,975
Servicing Rights [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings			(800)	1,700
Assets, fair value	30,136		30,136		27,159
Other debt securities
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	8,839		8,839		8,091
Private label residential mortgage-backed securities and CMOs
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	527,858		527,858		375,098
Impaired Loans [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets with Nonrecurring Changes in Fair Value	107,173	$ 59,678	107,173	59,678
Gains (Losses) from Nonrecurring Fair Value Changes	(35,106)	(10,623)	(58,073)	(18,873)
Fair Value, Inputs, Level 3
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	95,957		95,957		152,341
Fair Value, Inputs, Level 3 | Servicing Rights [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	30,136		30,136		27,159
Fair Value, Inputs, Level 3 | Other debt securities
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	5,024		5,024		4,572
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMOs
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	60,797		60,797		$ 120,610
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Investment grade
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	34,245		$ 34,245
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Investment grade | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Current subordination level (in Percent)			16.40%
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Non-investment grade
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets, fair value	26,552		$ 26,552
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Non-investment grade | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Current subordination level (in Percent)			10.40%
Fair Value, Inputs, Level 3 | Impaired Loans [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets with Nonrecurring Changes in Fair Value	107,173	59,678	$ 107,173	59,678
Taxi medallion [Member] | Impaired Loans [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Gains (Losses) from Nonrecurring Fair Value Changes			54,300	10,200
Taxi medallion [Member] | Fair Value, Inputs, Level 3 | Impaired Loans [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Assets with Nonrecurring Changes in Fair Value	$ 90,100	$ 39,600	$ 90,100	$ 39,600

XML

Fair Value Measurements (Changes in the Fair Value of Assets and Liabilities Measured at Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Document Fiscal Year Focus			2017
Private label residential mortgage-backed securities and CMOs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, fair value of assets	$ 108,790	$ 131,156	$ 120,610	$ 140,883
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	24,146		24,146
Gains (losses) for the period included in Other comprehensive income (loss)	(24,668)	337	(25,651)	(190)
Amortization	2,332	1,404	5,208	4,485
Sales	(40,732)	0	(40,732)	0
Settlements	(9,071)	(5,594)	(22,784)	(17,875)
Balance at end of period, fair value of assets	60,797	127,303	60,797	127,303
Other debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, fair value of assets	4,923	4,292	4,572	4,532
Gains (losses) for the period included in Other comprehensive income (loss)	101	22	469	(245)
Amortization	59	36	248	88
Settlements	(59)	(26)	(265)	(51)
Balance at end of period, fair value of assets	5,024	4,324	5,024	4,324
Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, fair value of assets	29,128	24,891	27,159	20,017
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(1,330)	(2,369)	(4,273)	(5,983)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	2,338	2,194	7,250	10,682
Balance at end of period, fair value of assets	$ 30,136	$ 24,716	$ 30,136	$ 24,716

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Fair Value Measurements (Valuation Techniques and Unobservable Inputs Used in the Valuation of Financial Instruments Falling within Level 3 of the Fair Value Hierarchy) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	$ 6,951,942	$ 6,150,975
Private label residential mortgage-backed securities and CMO's - Investment grade | Discounted cash flow | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	6.60%
Probability rate of default	0.13%
Loss severity	15.00%
Fair Value Inputs, Discount Rate	1.88%
Private label residential mortgage-backed securities and CMO's - Investment grade | Discounted cash flow | Maximum [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	25.60%
Probability rate of default	4.04%
Loss severity	75.00%
Fair Value Inputs, Discount Rate	7.43%
Private label residential mortgage-backed securities and CMO's - Investment grade | Discounted cash flow | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	15.92%
Probability rate of default	1.36%
Loss severity	33.10%
Fair Value Inputs, Discount Rate	3.48%
Private label residential mortgage-backed securities and CMO's - Non-investment grade | Discounted cash flow | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	1.10%
Probability rate of default	0.13%
Loss severity	15.00%
Fair Value Inputs, Discount Rate	1.35%
Private label residential mortgage-backed securities and CMO's - Non-investment grade | Discounted cash flow | Maximum [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	29.30%
Probability rate of default	4.15%
Loss severity	95.00%
Fair Value Inputs, Discount Rate	9.43%
Private label residential mortgage-backed securities and CMO's - Non-investment grade | Discounted cash flow | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	15.35%
Probability rate of default	1.51%
Loss severity	32.96%
Fair Value Inputs, Discount Rate	5.89%
Residential Servicing Rights [Member] | Discounted cash flow | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	2.76%
Fair Value Inputs, Discount Rate	9.50%
Residential Servicing Rights [Member] | Discounted cash flow | Maximum [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	29.96%
Fair Value Inputs, Discount Rate	9.58%
Residential Servicing Rights [Member] | Discounted cash flow | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	12.88%
Fair Value Inputs, Discount Rate	9.51%
Commercial Servicing Rights [Member] | Discounted cash flow | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	0.09%
Fair Value Inputs, Discount Rate	8.12%
Commercial Servicing Rights [Member] | Discounted cash flow | Maximum [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	9.99%
Fair Value Inputs, Discount Rate	14.57%
Commercial Servicing Rights [Member] | Discounted cash flow | Weighted Average
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair Value Inputs, Prepayment Rate	7.81%
Fair Value Inputs, Discount Rate	12.48%
Fair Value, Inputs, Level 3
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	$ 95,957	$ 152,341
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Investment grade
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	34,245
Fair Value, Inputs, Level 3 | Private label residential mortgage-backed securities and CMO's - Non-investment grade
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	26,552
Fair Value, Inputs, Level 3 | Residential Servicing Rights [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	18,006
Fair Value, Inputs, Level 3 | Commercial Servicing Rights [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Total fair value of assets	$ 12,130

XML

Fair Value Measurements (Assets for which Nonrecurring Changes in Fair Value have been Recorded) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Average fare per trip (Taxi Medallion)	$ 16.12
Fair Value Inputs, Number of trips per shift (Taxi Medallion)	15.4
Fair Value Inputs, Days Worked per Month (Taxi Medallion)	25.6
Fair Value Inputs, Second Shift Rental Achievement Rate (Taxi Medallion)	54.60%
OREO and Repossessed Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets with Nonrecurring Changes in Fair Value	$ 5,520,000	$ 7,923,000	$ 5,520,000	$ 7,923,000
Gains (Losses) from Nonrecurring Fair Value Changes	(515,000)	(372,000)	(1,534,000)	740,000
OREO and Repossessed Assets [Member] | Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets with Nonrecurring Changes in Fair Value	5,520,000	7,923,000	5,520,000	7,923,000
Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets with Nonrecurring Changes in Fair Value	107,173,000	59,678,000	107,173,000	59,678,000
Gains (Losses) from Nonrecurring Fair Value Changes	(35,106,000)	(10,623,000)	(58,073,000)	(18,873,000)
Impaired Loans [Member] | Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets with Nonrecurring Changes in Fair Value	107,173,000	59,678,000	107,173,000	59,678,000
Taxi medallion [Member] | Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Gains (Losses) from Nonrecurring Fair Value Changes			54,300,000	10,200,000
Taxi medallion [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets with Nonrecurring Changes in Fair Value	$ 90,100,000	$ 39,600,000	$ 90,100,000	$ 39,600,000

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Fair Value Measurements (Carrying Value and Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets:
Investment securities available for sale	$ 6,893,472	$ 6,073,584
Non-marketable equity securities	270,239	284,272
Loans and Leases Receivable, Net Amount	19,918,729	18,630,499
FDIC indemnification asset	349,617	515,933
Derivative assets	333	2,364
Liabilities:
Time Deposits	6,333,701	5,755,642
Derivative liabilities	0	81
Fair Value, Inputs, Level 1
Assets:
Cash and cash equivalents	292,601	448,313
Fair Value, Inputs, Level 2
Assets:
Non-marketable equity securities	270,239	284,272
Loans held for sale	35,113	45,833
Derivative assets	28,334	50,232
Liabilities:
Demand, savings and money market deposits	14,889,543	13,735,248
Time Deposits	6,335,324	5,759,787
FHLB advances	4,876,017	5,244,188
Notes Payable, Fair Value Disclosure	427,748	403,733
Derivative liabilities	27,076	61,562
Fair Value, Inputs, Level 3
Assets:
Investment securities held to maturity	10,000	10,000
Loans and Leases Receivable, Net Reported Amount, Covered	997,376	1,200,291
Loans and Leases Receivable, Net Amount	19,906,579	18,713,495
FDIC indemnification asset	168,415	256,691
Carrying Value
Assets:
Cash and cash equivalents	292,601	448,313
Investment securities available for sale	6,893,472	6,073,584
Investment securities held to maturity	10,000	10,000
Non-marketable equity securities	270,239	284,272
Loans held for sale	31,507	41,198
Loans and Leases Receivable, Net Reported Amount, Covered	533,128	611,942
Loans and Leases Receivable, Net Amount	19,918,729	18,630,499
FDIC indemnification asset	349,617	515,933
Derivative assets	28,334	50,232
Liabilities:
Demand, savings and money market deposits	14,889,543	13,735,248
Time Deposits	6,333,701	5,755,642
FHLB advances	4,871,000	5,239,348
Notes Payable, Fair Value Disclosure	402,828	402,809
Derivative liabilities	$ 27,076	$ 61,562

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Commitments and Contingencies (Total Lending Related Commitments Outstanding) (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	$ 3,150,308
Commitments to fund loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	417,943
Commitments to purchase loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	287,302
Unfunded commitments under lines of credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	2,361,922
Commercial and standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	83,141
Unfunded commitment under lines of credit - covered
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total lending related commitments outstanding	$ 10,000