10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________________

FORM 10-Q

_________________________________________

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

For the quarterly period ended June 30, 2015

OR

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

For the transition period from to

Commission File Number 001-35077

_____________________________________ 

WINTRUST FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

Illinois	36-3873352
(State of incorporation or organization)	(I.R.S. Employer Identification No.)

9700 W. Higgins Road, Suite 800

Rosemont, Illinois 60018

(Address of principal executive offices)

(847) 939-9000

(Registrant’s telephone number, including area code)

______________________________________ 

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 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  þ    No  ¨

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  þ    No  ¨

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. (Check one):

Large accelerated filer	þ		Accelerated filer	¨
Non-accelerated filer	¨	(Do not check if a smaller reporting company)	Smaller reporting company	¨

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

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

Common Stock — no par value, 48,230,299 shares, as of July 31, 2015

TABLE OF CONTENTS

		Page
	PART I. — FINANCIAL INFORMATION
ITEM 1.	Financial Statements	1
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	56
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	105
ITEM 4.	Controls and Procedures	106
	PART II. — OTHER INFORMATION
ITEM 1.	Legal Proceedings	107
ITEM 1A.	Risk Factors	107
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	107
ITEM 3.	Defaults Upon Senior Securities	NA
ITEM 4.	Mine Safety Disclosures	NA
ITEM 5.	Other Information	NA
ITEM 6.	Exhibits	108
	Signatures	109

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
	(Unaudited)						(Unaudited)
(In thousands, except share data)	June 30, 2015			December 31, 2014			June 30, 2014
Assets
Cash and due from banks	$	248,094		$	225,136		$	349,013
Federal funds sold and securities purchased under resale agreements	4,115			5,571			7,965
Interest bearing deposits with banks	591,721			998,437			506,871
Available-for-sale securities, at fair value	2,162,061			1,792,078			1,824,240
Trading account securities	1,597			1,206			2,234
Federal Home Loan Bank and Federal Reserve Bank stock	89,818			91,582			84,531
Brokerage customer receivables	29,753			24,221			28,199
Mortgage loans held-for-sale, at fair value	497,283			351,290			363,627
Loans, net of unearned income, excluding covered loans	15,513,650			14,409,398			13,749,996
Covered loans	193,410			226,709			275,154
Total loans	15,707,060			14,636,107			14,025,150
Less: Allowance for loan losses	100,204			91,705			92,253
Less: Allowance for covered loan losses	2,215			2,131			1,667
Net loans	15,604,641			14,542,271			13,931,230
Premises and equipment, net	571,498			555,228			535,281
FDIC indemnification asset	3,429			11,846			46,115
Accrued interest receivable and other assets	556,344			501,882			525,394
Trade date securities receivable	—			485,534			292,366
Goodwill	421,646			405,634			381,721
Other intangible assets	17,924			18,811			16,894
Total assets	$	20,799,924		$	20,010,727		$	18,895,681
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	3,910,310		$	3,518,685		$	3,072,430
Interest bearing	13,172,108			12,763,159			12,483,946
Total deposits	17,082,418			16,281,844			15,556,376
Federal Home Loan Bank advances	444,017			733,050			580,582
Other borrowings	261,908			196,465			43,716
Subordinated notes	140,000			140,000			140,000
Junior subordinated debentures	249,493			249,493			249,493
Trade date securities payable	—			3,828			—
Accrued interest payable and other liabilities	357,106			336,225			327,279
Total liabilities	18,534,942			17,940,905			16,897,446
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:
Series C - $1,000 liquidation value; 126,312 shares issued and outstanding at June 30, 2015 and 126,467 shares issued and outstanding at December 31, 2014, and June 30, 2014	126,312			126,467			126,467
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2015 and no shares issued and outstanding at December 31, 2014 and June 30, 2014.	125,000			—			—
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2015, December 31, 2014, and June 30, 2014; 47,762,681 shares issued at June 30, 2015, 46,881,108 shares issued at December 31, 2014, and 46,626,772 shares issued at June 30, 2014	47,763			46,881			46,627
Surplus	1,159,052			1,133,955			1,125,551
Treasury stock, at cost, 85,424 shares at June 30, 2015, 76,053 shares at December 31, 2014, and 73,867 shares at June 30, 2014	(3,964		)	(3,549		)	(3,449		)
Retained earnings	872,690			803,400			737,542
Accumulated other comprehensive loss	(61,871		)	(37,332		)	(34,503		)
Total shareholders’ equity	2,264,982			2,069,822			1,998,235
Total liabilities and shareholders’ equity	$	20,799,924		$	20,010,727		$	18,895,681

See accompanying notes to unaudited consolidated financial statements.

1

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
	Three Months Ended						Six Months Ended
(In thousands, except per share data)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Interest income
Interest and fees on loans	$	159,823		$	151,984		$	314,499		$	299,014
Interest bearing deposits with banks	305			319			621			568
Federal funds sold and securities purchased under resale agreements	1			6			3			10
Available-for-sale securities	14,071			13,309			28,471			26,423
Trading account securities	51			5			64			14
Federal Home Loan Bank and Federal Reserve Bank stock	785			727			1,554			1,438
Brokerage customer receivables	205			200			386			409
Total interest income	175,241			166,550			345,598			327,876
Interest expense
Interest on deposits	11,996			11,759			23,810			23,682
Interest on Federal Home Loan Bank advances	1,812			2,705			3,968			5,348
Interest on other borrowings	787			510			1,575			1,260
Interest on subordinated notes	1,777			354			3,552			354
Interest on junior subordinated debentures	1,977			2,042			3,910			4,046
Total interest expense	18,349			17,370			36,815			34,690
Net interest income	156,892			149,180			308,783			293,186
Provision for credit losses	9,482			6,660			15,561			8,540
Net interest income after provision for credit losses	147,410			142,520			293,222			284,646
Non-interest income
Wealth management	18,476			18,222			36,576			35,035
Mortgage banking	36,007			23,804			63,807			40,232
Service charges on deposit accounts	6,474			5,688			12,771			11,034
(Losses) gains on available-for-sale securities, net	(24		)	(336		)	500			(369		)
Fees from covered call options	4,565			1,244			8,925			2,786
Trading gains (losses), net	160			(743		)	(317		)	(1,395		)
Other	11,355			6,223			19,292			12,308
Total non-interest income	77,013			54,102			141,554			99,631
Non-interest expense
Salaries and employee benefits	94,421			81,963			184,551			161,897
Equipment	7,914			7,223			15,750			14,626
Occupancy, net	11,401			9,850			23,752			20,843
Data processing	6,081			4,543			11,529			9,258
Advertising and marketing	6,406			3,558			10,313			6,374
Professional fees	5,074			4,046			9,738			7,500
Amortization of other intangible assets	934			1,156			1,947			2,319
FDIC insurance	3,047			3,196			6,034			6,147
OREO expense, net	841			2,490			2,252			6,466
Other	18,178			15,566			35,749			29,476
Total non-interest expense	154,297			133,591			301,615			264,906
Income before taxes	70,126			63,031			133,161			119,371
Income tax expense	26,295			24,490			50,278			46,330
Net income	$	43,831		$	38,541		$	82,883		$	73,041
Preferred stock dividends and discount accretion	1,580			1,581			3,161			3,162
Net income applicable to common shares	$	42,251		$	36,960		$	79,722		$	69,879
Net income per common share—Basic	$	0.89		$	0.79		$	1.68		$	1.51
Net income per common share—Diluted	$	0.85		$	0.76		$	1.61		$	1.44
Cash dividends declared per common share	$	0.11		$	0.10		$	0.22		$	0.20
Weighted average common shares outstanding	47,567			46,520			47,404			46,358
Dilutive potential common shares	4,156			4,402			4,220			4,456
Average common shares and dilutive common shares	51,723			50,922			51,624			50,814

See accompanying notes to unaudited consolidated financial statements.

2

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	Three Months Ended						Six Months Ended
(In thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Net income	$	43,831		$	38,541		$	82,883		$	73,041
Unrealized (losses) gains on securities
Before tax	(53,400		)	26,049			(27,124		)	48,575
Tax effect	20,959			(10,332		)	10,628			(19,136		)
Net of tax	(32,441		)	15,717			(16,496		)	29,439
Less: Reclassification of net (losses) gains included in net income
Before tax	(24		)	(336		)	500			(369		)
Tax effect	10			133			(196		)	146
Net of tax	(14		)	(203		)	304			(223		)
Net unrealized (losses) gains on securities	(32,427		)	15,920			(16,800		)	29,662
Unrealized gains (losses) on derivative instruments
Before tax	215			(626		)	(346		)	(724		)
Tax effect	(84		)	249			136			288
Net unrealized gains (losses) on derivative instruments	131			(377		)	(210		)	(436		)
Foreign currency translation adjustment
Before tax	2,072			9,045			(10,218		)	(914		)
Tax effect	(556		)	(2,338		)	2,689			221
Net foreign currency translation adjustment	1,516			6,707			(7,529		)	(693		)
Total other comprehensive (loss) income	(30,780		)	22,250			(24,539		)	28,533
Comprehensive income	$	13,051		$	60,791		$	58,344		$	101,574

See accompanying notes to unaudited consolidated financial statements.

3

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED)
(In thousands)	Preferred stock			Common stock		Surplus			Treasury stock			Retained earnings			Accumulated other comprehensive loss			Total shareholders’ equity
Balance at December 31, 2013	$	126,477		$	46,181	$	1,117,032		$	(3,000	)	$	676,935		$	(63,036	)	$	1,900,589
Net income	—			—		—			—			73,041			—			73,041
Other comprehensive income, net of tax	—			—		—			—			—			28,533			28,533
Cash dividends declared on common stock	—			—		—			—			(9,272		)	—			(9,272		)
Dividends on preferred stock	—			—		—			—			(3,162		)	—			(3,162		)
Stock-based compensation	—			—		3,754			—			—			—			3,754
Conversion of Series C preferred stock to common stock	(10		)	1		9			—			—			—			—
Common stock issued for:
Exercise of stock options and warrants	—			347		2,472			(313		)	—			—			2,506
Restricted stock awards	—			48		127			(136		)	—			—			39
Employee stock purchase plan	—			30		1,394			—			—			—			1,424
Director compensation plan	—			20		763			—			—			—			783
Balance at June 30, 2014	$	126,467		$	46,627	$	1,125,551		$	(3,449	)	$	737,542		$	(34,503	)	$	1,998,235
Balance at December 31, 2014	$	126,467		$	46,881	$	1,133,955		$	(3,549	)	$	803,400		$	(37,332	)	$	2,069,822
Net income	—			—		—			—			82,883			—			82,883
Other comprehensive loss, net of tax	—			—		—			—			—			(24,539		)	(24,539		)
Cash dividends declared on common stock	—			—		—			—			(10,432		)	—			(10,432		)
Dividends on preferred stock	—			—		—			—			(3,161		)	—			(3,161		)
Stock-based compensation	—			—		5,286			—			—			—			5,286
Issuance of Series D preferred stock	125,000			—		(3,849		)	—			—			—			121,151
Conversion of Series C preferred stock to common stock	(155		)	4		151			—			—			—			—
Common stock issued for:
Acquisitions	—			422		18,749			—			—			—			19,171
Exercise of stock options and warrants	—			312		2,266			(130		)	—			—			2,448
Restricted stock awards	—			93		352			(285		)	—			—			160
Employee stock purchase plan	—			31		1,360			—			—			—			1,391
Director compensation plan	—			20		782			—			—			—			802
Balance at June 30, 2015	$	251,312		$	47,763	$	1,159,052		$	(3,964	)	$	872,690		$	(61,871	)	$	2,264,982

See accompanying notes to unaudited consolidated financial statements.

4

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Six Months Ended
(In thousands)	June 30, 2015			June 30, 2014
Operating Activities:
Net income	$	82,883		$	73,041
Adjustments to reconcile net income to net cash (used for) provided by operating activities
Provision for credit losses	15,561			8,540
Depreciation and amortization	15,813			15,510
Stock-based compensation expense	5,286			3,754
Tax expense from stock-based compensation arrangements	(596		)	(61		)
Excess tax benefits from stock-based compensation arrangements	(476		)	(226		)
Net amortization of premium on securities	205			3,419
Mortgage servicing rights fair value change, net	258			712
Originations and purchases of mortgage loans held-for-sale	(2,121,237		)	(1,368,131		)
Proceeds from sales of mortgage loans held-for-sale	2,034,173			1,371,124
Bank owned life insurance, net of claims	(1,470		)	(1,387		)
Increase in trading securities, net	(391		)	(1,737		)
Net (increase) decrease in brokerage customer receivables	(5,532		)	2,754
Gains on mortgage loans sold	(58,929		)	(32,293		)
(Gains) losses on available-for-sale securities, net	(500		)	369
Losses on sales of premises and equipment, net	403			561
Net (gains) losses on sales and fair value adjustments of other real estate owned	430			3,360
(Increase) decrease in accrued interest receivable and other assets, net	(38,117		)	43,274
Increase in accrued interest payable and other liabilities, net	17,757			4,253
Net Cash (Used for) Provided by Operating Activities	(54,479		)	126,836
Investing Activities:
Proceeds from maturities of available-for-sale securities	335,286			213,384
Proceeds from sales of available-for-sale securities	1,134,033			196,042
Purchases of available-for-sale securities	(1,353,356		)	(608,800		)
Net cash received (paid) for acquisitions	12,004			(7,267		)
Proceeds from sales of other real estate owned	24,444			47,160
Proceeds received from the FDIC related to reimbursements on covered assets	150			10,818
Net decrease (increase) in interest bearing deposits with banks	406,784			(11,297		)
Net increase in loans	(965,794		)	(822,314		)
Redemption of bank owned life insurance	2,701			—
Purchases of premises and equipment, net	(25,478		)	(17,386		)
Net Cash Used for Investing Activities	(429,226		)	(999,660		)
Financing Activities:
Increase in deposit accounts	630,785			882,631
Increase (decrease) in other borrowings, net	54,575			(211,388		)
(Decrease) increase in Federal Home Loan Bank advances, net	(293,584		)	163,000
Proceeds from the issuance of preferred stock, net	121,151			—
Proceeds from the issuance of subordinated notes, net	—			139,090
Excess tax benefits from stock-based compensation arrangements	476			226
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	5,812			5,262
Common stock repurchases	(415		)	(449		)
Dividends paid	(13,593		)	(12,434		)
Net Cash Provided by Financing Activities	505,207			965,938
Net Increase in Cash and Cash Equivalents	21,502			93,114
Cash and Cash Equivalents at Beginning of Period	230,707			263,864
Cash and Cash Equivalents at End of Period	$	252,209		$	356,978

See accompanying notes to unaudited consolidated financial statements.

5

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(1) Basis of Presentation

The consolidated financial statements of Wintrust Financial Corporation and Subsidiaries (“Wintrust” or “the Company”) presented herein are unaudited, but in the opinion of management reflect all necessary adjustments of a normal or recurring nature for a fair presentation of results as of the dates and for the periods covered by the consolidated financial statements.

The accompanying consolidated financial statements are unaudited and do not include information or footnotes necessary for a complete presentation of financial condition, results of operations or cash flows in accordance with U.S. generally accepted accounting principles ("GAAP"). The consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Form 10-K”). Operating results reported for the three-month periods are not necessarily indicative of the results which may be expected for the entire year. Reclassifications of certain prior period amounts have been made to conform to the current period presentation.

The preparation of the financial statements requires management to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities. Management believes that the estimates made are reasonable, however, changes in estimates may be required if economic or other conditions develop differently from management’s expectations. Certain policies and accounting principles inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Management views critical accounting policies to be those which are highly dependent on subjective or complex judgments, estimates and assumptions, and where changes in those estimates and assumptions could have a significant impact on the financial statements. Management currently views the determination of the allowance for loan losses, allowance for covered loan losses and the allowance for losses on lending-related commitments, loans acquired with evidence of credit quality deterioration since origination, estimations of fair value, the valuations required for impairment testing of goodwill, the valuation and accounting for derivative instruments and income taxes as the accounting areas that require the most subjective and complex judgments, and as such could be the most subject to revision as new information becomes available. Descriptions of our significant accounting policies are included in Note 1 - “Summary of Significant Accounting Policies” of the Company’s 2014 Form 10-K.

(2) Recent Accounting Developments

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, “Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects,” to provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that invest in affordable housing projects that qualify for the low-income housing tax credit. This ASU permits a new accounting treatment, if certain conditions are met, which allows the Company to amortize the initial cost of an investment in proportion to the amount of tax credits and other tax benefits received with recognition of the investment performance in income tax expense. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

Repossession of Residential Real Estate Collateral

In January 2014, the FASB issued ASU No. 2014-04, “Receivables - Troubled Debt Restructurings by Creditors (Topic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” to address diversity in practice and clarify guidance regarding the accounting for an in-substance repossession or foreclosure of residential real estate collateral. This ASU clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor. Additionally, this ASU requires disclosure of both the amount of foreclosed residential real estate property held by the Company and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, which created "Revenue from Contracts with Customers (Topic 606), to clarify the principles for recognizing revenue and develop a common revenue standard for customer contracts. This ASU provides guidance regarding how an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount

6

that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also added a new subtopic to the codification, ASC 340-40, "Other Assets and Deferred Costs: Contracts with Customers" to provide guidance on costs related to obtaining and fulfilling a customer contract. Furthermore, the new standard requires disclosure of sufficient information to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. At the time ASU No. 2014-09 was issued, the guidance was effective for fiscal years beginning after December 15, 2016. In July 2015, the FASB approved a deferral of the effective date by one year, which would result in the guidance becoming effective for fiscal years beginning after December 15, 2017. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Extraordinary and Unusual Items

In January 2015, the FASB issued ASU No. 2015-01, “Income Statement - Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items,” to eliminate the concept of extraordinary items related to separately classifying, presenting and disclosing certain events and transactions that meet the criteria for that concept. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied either prospectively or retrospectively. The Company does not expect this guidance to have a material impact on the Company’s consolidated financial statements.

Consolidation

In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis,” which changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied retrospectively. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Debt Issuance Costs

In April 2015, the FASB issued ASU No. 2015-03, "Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs," to clarify the presentation of debt issuance costs within the balance sheet. This ASU requires that an entity present debt issuance costs related to a recognized debt liability on the balance sheet as a direct deduction from the carrying amount of that debt liability, not as a separate asset. The ASU does not affect the current guidance for the recognition and measurement for these debt issuance costs. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied retrospectively. The Company does not expect this guidance to have a material impact on the Company’s consolidated financial statements.

(3) Business Combinations

Non-FDIC Assisted Bank Acquisitions

On January 16, 2015, the Company acquired Delavan Bancshares, Inc. ("Delavan"). Delavan was the parent company of Community Bank CBD, which had four banking locations. Community Bank CBD was merged into the Company's wholly-owned subsidiary Town Bank. The Company acquired assets with a fair value of approximately $224.1 million, including approximately $128.0 million of loans, and assumed liabilities with a fair value of approximately $186.4 million, including approximately $170.2 million of deposits. Additionally the Company recorded goodwill of $17.4 million on the acquisition.

On August 8, 2014, the Company, through its wholly-owned subsidiary Town Bank, acquired eleven branch offices and deposits of Talmer Bank & Trust. Subsequent to this date, the Company acquired loans from these branches as well. In total, the Company acquired assets with a fair value of approximately $361.3 million, including approximately $41.5 million of loans, and assumed liabilities with a fair value of approximately $361.3 million, including approximately $354.9 million of deposits. Additionally, the Company recorded goodwill of $9.7 million on the acquisition.

On July 11, 2014 the Company, through its wholly-owned subsidiary Town Bank, acquired the Pewaukee, Wisconsin branch of THE National Bank. The Company acquired assets with a fair value of approximately $94.1 million, including approximately $75.0 million of loans, and assumed deposits with a fair value of approximately $36.2 million. Additionally, the Company recorded goodwill of $16.3 million on the acquisition.

On May 16, 2014, the Company, through its wholly-owned subsidiary Hinsdale Bank and Trust Company ("Hinsdale Bank") acquired the Stone Park branch office and certain related deposits of Urban Partnership Bank ("UPB"). The Company assumed

7

liabilities with a fair value of approximately $5.5 million, including approximately $5.4 million of deposits. Additionally, the Company recorded goodwill of $678,000 on the acquisition.

See Note 17 - Subsequent Events for discussion regarding the Company's acquisitions of Community Financial Shares, Inc ("CFIS"), Suburban Illinois Bancorp, Inc. ("Suburban") and North Bank.

FDIC-Assisted Transactions

Since 2010, the Company acquired the banking operations, including the acquisition of certain assets and the assumption of liabilities, of nine financial institutions in FDIC-assisted transactions. Loans comprise the majority of the assets acquired in nearly all of these FDIC-assisted transactions, most of which are subject to loss sharing agreements with the FDIC whereby the FDIC has agreed to reimburse the Company for 80% of losses incurred on the purchased loans, other real estate owned (“OREO”), and certain other assets. Additionally, clawback provisions within these loss share agreements with the FDIC require the Company to reimburse the FDIC in the event that actual losses on covered assets are lower than the original loss estimates agreed upon with the FDIC with respect of such assets in the loss share agreements. The Company refers to the loans subject to these loss-sharing agreements as “covered loans” and uses the term “covered assets” to refer to covered loans, covered OREO and certain other covered assets. The agreements with the FDIC require that the Company follow certain servicing procedures or risk losing the FDIC reimbursement of covered asset losses.

The loans covered by the loss sharing agreements are classified and presented as covered loans and the estimated reimbursable losses are recorded as an FDIC indemnification asset in the Consolidated Statements of Condition. The Company recorded the acquired assets and liabilities at their estimated fair values at the acquisition date. The fair value for loans reflected expected credit losses at the acquisition date. Therefore, the Company will only recognize a provision for credit losses and charge-offs on the acquired loans for any further credit deterioration subsequent to the acquisition date. See Note 7 — Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion of the allowance on covered loans.

The loss share agreements with the FDIC cover realized losses on loans, foreclosed real estate and certain other assets. These loss share assets are measured separately from the loan portfolios because they are not contractually embedded in the loans and are not transferable with the loans should the Company choose to dispose of them. Fair values at the acquisition dates were estimated based on projected cash flows available for loss-share based on the credit adjustments estimated for each loan pool and the loss share percentages. The loss share assets are recorded as FDIC indemnification assets on the Consolidated Statements of Condition. Subsequent to the acquisition date, reimbursements received from the FDIC for actual incurred losses will reduce the FDIC indemnification assets. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will also reduce the FDIC indemnification assets. In accordance with the clawback provision noted above, the Company may be required to reimburse the FDIC when actual losses are less than certain thresholds established for each lose share agreement. The balance of these estimated reimbursements in accordance with clawback provisions and any related amortization are adjusted periodically for changes in the expected losses on covered assets. Estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset on the Consolidated Statements of Condition. Although these assets are contractual receivables from the FDIC, there are no contractual interest rates. Additional expected losses, to the extent such expected losses result in recognition of an allowance for covered loan losses, will increase the FDIC indemnification asset. The corresponding amortization is recorded as a component of non-interest income on the Consolidated Statements of Income.

The following table summarizes the activity in the Company’s FDIC indemnification asset during the periods indicated:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Balance at beginning of period	$	10,224		$	60,298		$	11,846		$	85,672
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	934			2,067			2,509			3,349
Amortization	(1,206		)	(1,456		)	(2,466		)	(3,059		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,317		)	(13,645		)	(8,310		)	(29,029		)
Payments received from the FDIC	(2,206		)	(1,149		)	(150		)	(10,818		)
Balance at end of period	$	3,429		$	46,115		$	3,429		$	46,115

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Specialty Finance Acquisition

On April 28, 2014, the Company, through its wholly-owned subsidiary, First Insurance Funding of Canada, Inc., acquired Policy Billing Services Inc. and Equity Premium Finance Inc., two affiliated Canadian insurance premium funding and payment services companies. Through this transaction, the Company acquired approximately $7.4 million of premium finance receivables. The Company recorded goodwill of approximately $6.5 million on the acquisition.

Purchased Credit Impaired ("PCI") Loans

Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date. Expected future cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable (“accretable yield”). The difference between contractually required payments and the cash flows expected to be collected at acquisition is referred to as the non-accretable difference and represents probable losses in the portfolio.

In determining the acquisition date fair value of PCI loans, and in subsequent accounting, the Company aggregates these purchased loans into pools of loans by common risk characteristics, such as credit risk rating and loan type. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses.

The Company purchased a portfolio of life insurance premium finance receivables in 2009. These purchased life insurance premium finance receivables are valued on an individual basis with the accretable component being recognized into interest income using the effective yield method over the estimated remaining life of the loans. The non-accretable portion is evaluated each quarter and if the loans’ credit related conditions improve, a portion is transferred to the accretable component and accreted over future periods. In the event a specific loan prepays in whole, any remaining accretable and non-accretable discount is recognized in income immediately. If credit related conditions deteriorate, an allowance related to these loans will be established as part of the provision for credit losses.

See Note 6—Loans, for more information on PCI loans.

(4) Cash and Cash Equivalents

For purposes of the Consolidated Statements of Cash Flows, the Company considers cash and cash equivalents to include cash on hand, cash items in the process of collection, non-interest bearing amounts due from correspondent banks, federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

(5) Available-For-Sale Securities

The following tables are a summary of the available-for-sale securities portfolio as of the dates shown:

	June 30, 2015
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	288,196	$	138	$	(7,173	)	$	281,161
U.S. Government agencies	651,737		2,074		(25,151		)	628,660
Municipal	269,562		4,222		(3,994		)	269,790
Corporate notes:
Financial issuers	124,924		1,773		(1,289		)	125,408
Other	2,726		9		(2		)	2,733
Mortgage-backed: (1)
Mortgage-backed securities	777,087		4,053		(23,499		)	757,641
Collateralized mortgage obligations	42,550		342		(432		)	42,460
Equity securities	48,740		5,876		(408		)	54,208
Total available-for-sale securities	$	2,205,522	$	18,487	$	(61,948	)	$	2,162,061

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	December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	388,713	$	84	$	(6,992	)	$	381,805
U.S. Government agencies	686,106		4,113		(21,903		)	668,316
Municipal	234,951		5,318		(1,740		)	238,529
Corporate notes:
Financial issuers	129,309		2,006		(1,557		)	129,758
Other	3,766		55		—			3,821
Mortgage-backed: (1)
Mortgage-backed securities	271,129		5,448		(4,928		)	271,649
Collateralized mortgage obligations	47,347		249		(535		)	47,061
Equity securities	46,592		4,872		(325		)	51,139
Total available-for-sale securities	$	1,807,913	$	22,145	$	(37,980	)	$	1,792,078

	June 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	399,031	$	354	$	(10,970	)	$	388,415
U.S. Government agencies	798,889		4,458		(37,347		)	766,000
Municipal	173,664		4,385		(1,942		)	176,107
Corporate notes:
Financial issuers	129,211		2,402		(1,387		)	130,226
Other	4,980		97		—			5,077
Mortgage-backed: (1)
Mortgage-backed securities	255,082		5,190		(9,097		)	251,175
Collateralized mortgage obligations	52,672		389		(673		)	52,388
Equity securities	50,594		4,634		(376		)	54,852
Total available-for-sale securities	$	1,864,123	$	21,909	$	(61,792	)	$	1,824,240

(1) Consisting entirely of residential mortgage-backed securities, none of which are subprime.

The following table presents the portion of the Company’s available-for-sale securities portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2015:

	Continuous unrealized losses existing for less than 12 months					Continuous unrealized losses existing for greater than 12 months					Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury	$	207,997	$	(7,173	)	$	—	$	—		$	207,997	$	(7,173	)
U.S. Government agencies	231,514		(8,817		)	248,487		(16,334		)	480,001		(25,151		)
Municipal	96,407		(2,545		)	37,578		(1,449		)	133,985		(3,994		)
Corporate notes:
Financial issuers	13,117		(94		)	44,762		(1,195		)	57,879		(1,289		)
Other	998		(2		)	—		—			998		(2		)
Mortgage-backed:
Mortgage-backed securities	551,405		(16,869		)	120,626		(6,630		)	672,031		(23,499		)
Collateralized mortgage obligations	5,158		(31		)	9,877		(401		)	15,035		(432		)
Equity securities	2,909		(37		)	8,505		(371		)	11,414		(408		)
Total	$	1,109,505	$	(35,568	)	$	469,835	$	(26,380	)	$	1,579,340	$	(61,948	)

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The Company conducts a regular assessment of its investment securities to determine whether securities are other-than-temporarily impaired considering, among other factors, the nature of the securities, credit ratings or financial condition of the issuer, the extent and duration of the unrealized loss, expected cash flows, market conditions and the Company’s ability to hold the securities through the anticipated recovery period.

The Company does not consider securities with unrealized losses at June 30, 2015 to be other-than-temporarily impaired. The Company does not intend to sell these investments and it is more likely than not that the Company will not be required to sell these investments before recovery of the amortized cost bases, which may be the maturity dates of the securities. The unrealized losses within each category have occurred as a result of changes in interest rates, market spreads and market conditions subsequent to purchase. Securities with continuous unrealized losses existing for more than twelve months were primarily agency bonds and mortgage-backed securities. Unrealized losses recognized on agency bonds and mortgage-backed securities are the result of increases in yields for similar types of securities which also have a longer duration and maturity.

The following table provides information as to the amount of gross gains and gross losses realized and proceeds received through the sales of available-for-sale investment securities:

	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2015			2014			2015			2014
Realized gains	$	14		$	99		$	567		$	154
Realized losses	(38		)	(435		)	(67		)	(523		)
Net realized (losses) gains	$	(24	)	$	(336	)	$	500		$	(369	)
Other than temporary impairment charges	—			—			—			—
(Losses) gains on available-for-sale securities, net	$	(24	)	$	(336	)	$	500		$	(369	)
Proceeds from sales of available-for-sale securities	$	498,501		$	169,753		$	1,134,033		$	196,042

The amortized cost and fair value of securities as of June 30, 2015, December 31, 2014 and June 30, 2014, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2015				December 31, 2014				June 30, 2014
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	141,792	$	141,897	$	285,596	$	285,889	$	173,991	$	174,220
Due in one to five years	261,285		261,146		172,647		172,885		361,300		362,423
Due in five to ten years	291,451		285,192		331,389		325,644		319,641		310,196
Due after ten years	642,617		619,517		653,213		637,811		650,843		618,986
Mortgage-backed	819,637		800,101		318,476		318,710		307,754		303,563
Equity securities	48,740		54,208		46,592		51,139		50,594		54,852
Total available-for-sale securities	$	2,205,522	$	2,162,061	$	1,807,913	$	1,792,078	$	1,864,123	$	1,824,240

Securities having a carrying value of $1.1 billion at June 30, 2015, December 31, 2014 and June 30, 2014, were pledged as collateral for public deposits, trust deposits, FHLB advances, securities sold under repurchase agreements and derivatives. At June 30, 2015, there were no securities of a single issuer, other than U.S. Government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

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(6) Loans

The following table shows the Company’s loan portfolio by category as of the dates shown:

	June 30,			December 31,			June 30,
(Dollars in thousands)	2015			2014			2014
Balance:
Commercial	$	4,330,344		$	3,924,394		$	3,640,430
Commercial real estate	4,850,590			4,505,753			4,353,472
Home equity	712,350			716,293			713,642
Residential real estate	503,015			483,542			451,905
Premium finance receivables—commercial	2,460,408			2,350,833			2,378,529
Premium finance receivables—life insurance	2,537,475			2,277,571			2,051,645
Consumer and other	119,468			151,012			160,373
Total loans, net of unearned income, excluding covered loans	$	15,513,650		$	14,409,398		$	13,749,996
Covered loans	193,410			226,709			275,154
Total loans	$	15,707,060		$	14,636,107		$	14,025,150
Mix:
Commercial	27		%	26		%	26		%
Commercial real estate	31			31			31
Home equity	5			5			5
Residential real estate	3			3			3
Premium finance receivables—commercial	16			16			17
Premium finance receivables—life insurance	16			16			15
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	98		%	98		%
Covered loans	1			2			2
Total loans	100		%	100		%	100		%

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses located within the geographic market areas that the banks serve. The premium finance receivables portfolios are made to customers throughout the United States and Canada. The Company strives to maintain a loan portfolio that is diverse in terms of loan type, industry, borrower and geographic concentrations. Such diversification reduces the exposure to economic downturns that may occur in different segments of the economy or in different industries.

Certain premium finance receivables are recorded net of unearned income. The unearned income portions of such premium finance receivables were $53.7 million at June 30, 2015, $46.9 million at December 31, 2014 and $44.8 million at June 30, 2014, respectively. Certain life insurance premium finance receivables attributable to the life insurance premium finance loan acquisition in 2009 as well as PCI loans are recorded net of credit discounts. See “Acquired Loan Information at Acquisition” below.

Total loans, excluding PCI loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $1.7 million at June 30, 2015, $330,000 at December 31, 2014 and $(1.3) million at June 30, 2014. The net credit balance at June 30, 2014 is primarily the result of purchase accounting adjustments related to acquisitions in 2014.

It is the policy of the Company to review each prospective credit in order to determine the appropriateness and, when required, the adequacy of security or collateral necessary to obtain when making a loan. The type of collateral, when required, will vary from liquid assets to real estate. The Company seeks to ensure access to collateral, in the event of default, through adherence to state lending laws and the Company’s credit monitoring procedures.

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Acquired Loan Information at Acquisition—PCI Loans

As part of our previous acquisitions, we acquired loans for which there was evidence of credit quality deterioration since origination (PCI loans) and we determined that it was probable that the Company would be unable to collect all contractually required principal and interest payments. The following table presents the unpaid principal balance and carrying value for these acquired loans:

	June 30, 2015				December 31, 2014
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	251,529	$	204,898	$	285,809	$	227,229
Life insurance premium finance loans acquisition	388,773		384,320		399,665		393,479

The following table provides estimated details as of the date of acquisition on loans acquired in 2015 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Delavan
Contractually required payments including interest	$	15,791
Less: Nonaccretable difference	1,442
Cash flows expected to be collected (1)	14,349
Less: Accretable yield	898
Fair value of PCI loans acquired	13,451

(1) Represents undiscounted expected principal and interest cash at acquisition.

See Note 7—Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion regarding the allowance for loan losses associated with PCI loans at June 30, 2015.

Accretable Yield Activity - PCI Loans

Changes in expected cash flows may vary from period to period as the Company periodically updates its cash flow model assumptions for PCI loans. The factors that most significantly affect the estimates of gross cash flows expected to be collected, and accordingly the accretable yield, include changes in the benchmark interest rate indices for variable-rate products and changes in prepayment assumptions and loss estimates. The following table provides activity for the accretable yield of PCI loans:

	Three Months Ended June 30, 2015						Three Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	69,182		$	1,016		$	97,674		$	6,561
Acquisitions	—			—			—			—
Accretable yield amortized to interest income	(5,184		)	(1,131		)	(9,617		)	(1,433		)
Accretable yield amortized to indemnification asset (1)	(4,089		)	—			(11,161		)	—
Reclassification from non-accretable difference (2)	1,638			115			17,928			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	2,096			—			(2,722		)	51
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

13

	Six Months Ended June 30, 2015						Six Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	77,485		$	1,617		$	107,655		$	8,254
Acquisitions	898			—			—			—
Accretable yield amortized to interest income	(10,688		)	(1,732		)	(17,387		)	(3,204		)
Accretable yield amortized to indemnification asset (1)	(7,665		)	—			(16,809		)	—
Reclassification from non-accretable difference (2)	2,741			115			26,508			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	872			—			(7,865		)	129
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

(1) Represents the portion of the current period accreted yield, resulting from lower expected losses, applied to reduce the loss share indemnification asset.

(2) Reclassification is the result of subsequent increases in expected principal cash flows.

(3) As of June 30, 2015, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $12.3 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income from loans acquired in bank acquisitions totaled $5.2 million and $9.6 million in the second quarter of 2015 and 2014, respectively. For the six months ended June 30, 2015 and 2014, the Company recorded accretion to interest income of $10.7 million and $17.4 million, respectively. These amounts include accretion from both covered and non-covered loans, and are included together within interest and fees on loans in the Consolidated Statements of Income.

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(7) Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans

The tables below show the aging of the Company’s loan portfolio at June 30, 2015, December 31, 2014 and June 30, 2014:

As of June 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	4,424	$	—	$	1,846	$	6,027	$	2,522,162	$	2,534,459
Franchise	905		—		113		396		227,185		228,599
Mortgage warehouse lines of credit	—		—		—		—		213,797		213,797
Community Advantage—homeowners association	—		—		—		—		114,883		114,883
Aircraft	—		—		—		—		6,831		6,831
Asset-based lending	—		—		1,767		7,423		823,265		832,455
Tax exempt	—		—		—		—		199,185		199,185
Leases	65		—		—		—		187,565		187,630
Other	—		—		—		—		2,772		2,772
PCI - commercial (1)	—		474		—		233		9,026		9,733
Total commercial	5,394		474		3,726		14,079		4,306,671		4,330,344
Commercial real estate:
Residential construction	—		—		—		4		57,598		57,602
Commercial construction	19		—		—		—		249,524		249,543
Land	2,035		—		1,123		2,399		82,280		87,837
Office	6,360		701		163		2,601		744,992		754,817
Industrial	2,568		—		18		484		624,337		627,407
Retail	2,352		—		896		2,458		744,285		749,991
Multi-family	1,730		—		933		223		665,562		668,448
Mixed use and other	8,119		—		2,405		3,752		1,577,846		1,592,122
PCI - commercial real estate (1)	—		15,646		3,490		2,798		40,889		62,823
Total commercial real estate	23,183		16,347		9,028		14,719		4,787,313		4,850,590
Home equity	5,695		—		511		3,365		702,779		712,350
Residential real estate	16,631		—		2,410		1,205		480,427		500,673
PCI - residential real estate (1)	—		264		84		—		1,994		2,342
Premium finance receivables
Commercial insurance loans	15,156		9,053		5,048		11,071		2,420,080		2,460,408
Life insurance loans	—		351		—		6,823		2,145,981		2,153,155
PCI - life insurance loans (1)	—		—		—		—		384,320		384,320
Consumer and other	280		110		196		919		117,963		119,468
Total loans, net of unearned income, excluding covered loans	$	66,339	$	26,599	$	21,003	$	52,181	$	15,347,528	$	15,513,650
Covered loans	6,353		10,030		1,333		1,720		173,974		193,410
Total loans, net of unearned income	$	72,692	$	36,629	$	22,336	$	53,901	$	15,521,502	$	15,707,060

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

15

As of December 31, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	9,132	$	474	$	3,161	$	7,492	$	2,213,105	$	2,233,364
Franchise	—		—		308		1,219		231,789		233,316
Mortgage warehouse lines of credit	—		—		—		—		139,003		139,003
Community Advantage—homeowners association	—		—		—		—		106,364		106,364
Aircraft	—		—		—		—		8,065		8,065
Asset-based lending	25		—		1,375		2,394		802,608		806,402
Tax exempt	—		—		—		—		217,487		217,487
Leases	—		—		77		315		159,744		160,136
Other	—		—		—		—		11,034		11,034
PCI - commercial (1)	—		365		202		138		8,518		9,223
Total commercial	9,157		839		5,123		11,558		3,897,717		3,924,394
Commercial real estate
Residential construction	—		—		250		76		38,370		38,696
Commercial construction	230		—		—		2,023		185,513		187,766
Land	2,656		—		—		2,395		86,779		91,830
Office	7,288		—		2,621		1,374		694,149		705,432
Industrial	2,392		—		—		3,758		617,820		623,970
Retail	4,152		—		116		3,301		723,919		731,488
Multi-family	249		—		249		1,921		603,323		605,742
Mixed use and other	9,638		—		2,603		9,023		1,443,853		1,465,117
PCI - commercial real estate (1)	—		10,976		6,393		4,016		34,327		55,712
Total commercial real estate	26,605		10,976		12,232		27,887		4,428,053		4,505,753
Home equity	6,174		—		983		3,513		705,623		716,293
Residential real estate	15,502		—		267		6,315		459,224		481,308
PCI - residential real estate (1)	—		549		—		—		1,685		2,234
Premium finance receivables
Commercial insurance loans	12,705		7,665		5,995		17,328		2,307,140		2,350,833
Life insurance loans	—		—		13,084		339		1,870,669		1,884,092
PCI - life insurance loans (1)	—		—		—		—		393,479		393,479
Consumer and other	277		119		293		838		149,485		151,012
Total loans, net of unearned income, excluding covered loans	$	70,420	$	20,148	$	37,977	$	67,778	$	14,213,075	$	14,409,398
Covered loans	7,290		17,839		1,304		4,835		195,441		226,709
Total loans, net of unearned income	$	77,710	$	37,987	$	39,281	$	72,613	$	14,408,516	$	14,636,107

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

16

As of June 30, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	6,216	$	—	$	4,165	$	21,610	$	1,980,489	$	2,012,480
Franchise	—		—		—		549		222,907		223,456
Mortgage warehouse lines of credit	—		—		—		1,680		146,531		148,211
Community Advantage—homeowners association	—		—		—		—		94,009		94,009
Aircraft	—		—		—		—		7,847		7,847
Asset-based lending	295		—		—		6,047		772,002		778,344
Tax exempt	—		—		—		—		208,913		208,913
Leases	—		—		—		36		144,399		144,435
Other	—		—		—		—		9,792		9,792
PCI - commercial (1)	—		1,452		—		224		11,267		12,943
Total commercial	6,511		1,452		4,165		30,146		3,598,156		3,640,430
Commercial real estate:
Residential construction	—		—		—		18		29,941		29,959
Commercial construction	839		—		—		—		154,220		155,059
Land	2,367		—		614		4,502		98,444		105,927
Office	10,950		—		999		3,911		652,057		667,917
Industrial	5,097		—		899		690		610,954		617,640
Retail	6,909		—		1,334		2,560		686,292		697,095
Multi-family	689		—		244		4,717		630,519		636,169
Mixed use and other	9,470		309		5,384		12,300		1,350,976		1,378,439
PCI - commercial real estate (1)	—		15,682		155		1,595		47,835		65,267
Total commercial real estate	36,321		15,991		9,629		30,293		4,261,238		4,353,472
Home equity	5,804		—		1,392		3,324		703,122		713,642
Residential real estate	15,294		—		1,487		1,978		430,364		449,123
PCI - residential real estate (1)	—		988		111		—		1,683		2,782
Premium finance receivables	—		—		—		—		—		—
Commercial insurance loans	12,298		10,275		12,335		14,672		2,328,949		2,378,529
Life insurance loans	—		649		896		4,783		1,635,557		1,641,885
PCI - life insurance loans (1)	—		—		—		—		409,760		409,760
Consumer and other	1,116		73		562		600		158,022		160,373
Total loans, net of unearned income, excluding covered loans	$	77,344	$	29,428	$	30,577	$	85,796	$	13,526,851	$	13,749,996
Covered loans	6,690		34,486		4,003		1,482		228,493		275,154
Total loans, net of unearned income	$	84,034	$	63,914	$	34,580	$	87,278	$	13,755,344	$	14,025,150

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

17

Our ability to manage credit risk depends in large part on our ability to properly identify and manage problem loans. To do so, the Company operates a credit risk rating system under which our credit management personnel assign a credit risk rating (1 to 10 rating) to each loan at the time of origination and review loans on a regular basis.

Each loan officer is responsible for monitoring his or her loan portfolio, recommending a credit risk rating for each loan in his or her portfolio and ensuring the credit risk ratings are appropriate. These credit risk ratings are then ratified by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including: a borrower’s financial strength, cash flow coverage, collateral protection and guarantees.

The Company’s Problem Loan Reporting system automatically includes all loans with credit risk ratings of 6 through 9. This system is designed to provide an on-going detailed tracking mechanism for each problem loan. Once management determines that a loan has deteriorated to a point where it has a credit risk rating of 6 or worse, the Company’s Managed Asset Division performs an overall credit and collateral review. As part of this review, all underlying collateral is identified and the valuation methodology is analyzed and tracked. As a result of this initial review by the Company’s Managed Asset Division, the credit risk rating is reviewed and a portion of the outstanding loan balance may be deemed uncollectible or an impairment reserve may be established. The Company’s impairment analysis utilizes an independent re-appraisal of the collateral (unless such a third-party evaluation is not possible due to the unique nature of the collateral, such as a closely-held business or thinly traded securities). In the case of commercial real estate collateral, an independent third party appraisal is ordered by the Company’s Real Estate Services Group to determine if there has been any change in the underlying collateral value. These independent appraisals are reviewed by the Real Estate Services Group and sometimes by independent third party valuation experts and may be adjusted depending upon market conditions.

Through the credit risk rating process, loans are reviewed to determine if they are performing in accordance with the original contractual terms. If the borrower has failed to comply with the original contractual terms, further action may be required by the Company, including a downgrade in the credit risk rating, movement to non-accrual status, a charge-off or the establishment of a specific impairment reserve. If we determine that a loan amount, or portion thereof, is uncollectible, the loan’s credit risk rating is immediately downgraded to an 8 or 9 and the uncollectible amount is charged-off. Any loan that has a partial charge-off continues to be assigned a credit risk rating of an 8 or 9 for the duration of time that a balance remains outstanding. The Company undertakes a thorough and ongoing analysis to determine if additional impairment and/or charge-offs are appropriate and to begin a workout plan for the credit to minimize actual losses.

If, based on current information and events, it is probable that the Company will be unable to collect all amounts due to it according to the contractual terms of the loan agreement, a specific impairment reserve is established. In determining the appropriate charge-off for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

18

Non-performing loans include all non-accrual loans (8 and 9 risk ratings) as well as loans 90 days past due and still accruing interest, excluding PCI loans. The remainder of the portfolio is considered performing under the contractual terms of the loan agreement. The following table presents the recorded investment based on performance of loans by class, excluding covered loans, per the most recent analysis at June 30, 2015, December 31, 2014 and June 30, 2014:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30,  2014		June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Loan Balances:
Commercial
Commercial and industrial	$	2,530,035	$	2,223,758	$	2,006,264	$	4,424	$	9,606	$	6,216	$	2,534,459	$	2,233,364	$	2,012,480
Franchise	227,694		233,316		223,456		905		—		—		228,599		233,316		223,456
Mortgage warehouse lines of credit	213,797		139,003		148,211		—		—		—		213,797		139,003		148,211
Community Advantage—homeowners association	114,883		106,364		94,009		—		—		—		114,883		106,364		94,009
Aircraft	6,831		8,065		7,847		—		—		—		6,831		8,065		7,847
Asset-based lending	832,455		806,377		778,049		—		25		295		832,455		806,402		778,344
Tax exempt	199,185		217,487		208,913		—		—		—		199,185		217,487		208,913
Leases	187,565		160,136		144,435		65		—		—		187,630		160,136		144,435
Other	2,772		11,034		9,792		—		—		—		2,772		11,034		9,792
PCI - commercial (1)	9,733		9,223		12,943		—		—		—		9,733		9,223		12,943
Total commercial	4,324,950		3,914,763		3,633,919		5,394		9,631		6,511		4,330,344		3,924,394		3,640,430
Commercial real estate
Residential construction	57,602		38,696		29,959		—		—		—		57,602		38,696		29,959
Commercial construction	249,524		187,536		154,220		19		230		839		249,543		187,766		155,059
Land	85,802		89,174		103,560		2,035		2,656		2,367		87,837		91,830		105,927
Office	747,756		698,144		656,967		7,061		7,288		10,950		754,817		705,432		667,917
Industrial	624,839		621,578		612,543		2,568		2,392		5,097		627,407		623,970		617,640
Retail	747,639		727,336		690,186		2,352		4,152		6,909		749,991		731,488		697,095
Multi-family	666,718		605,493		635,480		1,730		249		689		668,448		605,742		636,169
Mixed use and other	1,584,003		1,455,479		1,368,660		8,119		9,638		9,779		1,592,122		1,465,117		1,378,439
PCI - commercial real estate(1)	62,823		55,712		65,267		—		—		—		62,823		55,712		65,267
Total commercial real estate	4,826,706		4,479,148		4,316,842		23,884		26,605		36,630		4,850,590		4,505,753		4,353,472
Home equity	706,655		710,119		707,838		5,695		6,174		5,804		712,350		716,293		713,642
Residential real estate	484,042		465,806		433,829		16,631		15,502		15,294		500,673		481,308		449,123
PCI - residential real estate (1)	2,342		2,234		2,782		—		—		—		2,342		2,234		2,782
Premium finance receivables
Commercial insurance loans	2,436,199		2,330,463		2,355,956		24,209		20,370		22,573		2,460,408		2,350,833		2,378,529
Life insurance loans	2,152,804		1,884,092		1,641,236		351		—		649		2,153,155		1,884,092		1,641,885
PCI - life insurance loans (1)	384,320		393,479		409,760		—		—		—		384,320		393,479		409,760
Consumer and other	119,078		150,617		159,184		390		395		1,189		119,468		151,012		160,373
Total loans, net of unearned income, excluding covered loans	$	15,437,096	$	14,330,721	$	13,661,346	$	76,554	$	78,677	$	88,650	$	15,513,650	$	14,409,398	$	13,749,996

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. See Note 6 - Loans for further discussion of these purchased loans.

19

A summary of activity in the allowance for credit losses by loan portfolio (excluding covered loans) for the three months ended June 30, 2015 and 2014 is as follows:

Three months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Other adjustments	(13		)	(81		)	—			(5		)	6			—			(93		)
Reclassification from allowance for unfunded lending-related commitments	—			4			—			—			—			—			4
Charge-offs	(1,243		)	(856		)	(1,847		)	(923		)	(1,526		)	(115		)	(6,510		)
Recoveries	285			1,824			39			16			458			34			2,656
Provision for credit losses	145			4,305			1,432			1,835			1,991			(7		)	9,701
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088
Individually evaluated for impairment	$	2,282		$	5,602		$	808		$	1,387		$	—		$	44		$	10,123
Collectively evaluated for impairment	30,600			37,145			11,480			3,589			6,921			834			90,569
Loans acquired with deteriorated credit quality	18			335			—			43			—			—			396
Loans at period end
Individually evaluated for impairment	$	11,921		$	65,870		$	5,909		$	20,459		$	—		$	418		$	104,577
Collectively evaluated for impairment	4,308,690			4,721,897			706,441			480,214			4,613,563			119,050			14,949,855
Loans acquired with deteriorated credit quality	9,733			62,823			—			2,342			384,320			—			459,218

Three months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	24,689		$	44,605		$	10,966		$	4,691		$	5,582		$	1,742		$	92,275
Other adjustments	(22		)	(96		)	(1		)	(2		)	16			—			(105		)
Reclassification from allowance for unfunded lending-related commitments	—			(146		)	—			—			—			—			(146		)
Charge-offs	(2,384		)	(2,351		)	(730		)	(689		)	(1,492		)	(213		)	(7,859		)
Recoveries	270			342			122			74			314			153			1,275
Provision for credit losses	3,485			(1,652		)	3,561			(341		)	1,889			(129		)	6,813
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137
Individually evaluated for impairment	$	1,927		$	7,237		$	636		$	484		$	—		$	102		$	10,386
Collectively evaluated for impairment	24,100			34,349			13,282			3,196			6,309			1,451			82,687
Loans acquired with deteriorated credit quality	11			—			—			53			—			—			64
Loans at period end
Individually evaluated for impairment	$	12,397		$	100,068		$	6,030		$	18,680		$	—		$	1,560		$	138,735
Collectively evaluated for impairment	3,615,090			4,188,137			707,612			430,443			4,020,414			158,615			13,120,311
Loans acquired with deteriorated credit quality	12,943			65,267			—			2,782			409,760			198			490,950

20

Six months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(30		)	(261		)	—			(8		)	(42		)	—			(341		)
Reclassification from allowance for unfunded lending-related commitments	—			(109		)	—			—			—			—			(109		)
Charge-offs	(1,920		)	(1,861		)	(2,431		)	(1,554		)	(2,789		)	(226		)	(10,781		)
Recoveries	655			2,136			87			92			787			87			3,844
Provision for credit losses	2,496			6,760			2,132			2,271			2,452			(225		)	15,886
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088

Six months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	23,092		$	48,658		$	12,611		$	5,108		$	5,583		$	1,870		$	96,922
Other adjustments	(37		)	(217		)	(2		)	(4		)	7			—			(253		)
Reclassification from allowance for unfunded lending-related commitments	—			(164		)	—			—			—			—			(164		)
Charge-offs	(3,032		)	(6,844		)	(2,997		)	(915		)	(2,702		)	(386		)	(16,876		)
Recoveries	587			487			379			205			635			214			2,507
Provision for credit losses	5,428			(1,218		)	3,927			(661		)	2,786			(145		)	10,117
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137

21

A summary of activity in the allowance for covered loan losses for the three months ended June 30, 2015 and 2014 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2015			2014			2015			2014
Balance at beginning of period	$	1,878		$	3,447		$	2,131		$	10,092
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,094		)	(764		)	(1,623		)	(7,885		)
Benefit attributable to FDIC loss share agreements	875			611			1,298			6,308
Net provision for covered loan losses	(219		)	(153		)	(325		)	(1,577		)
Decrease in FDIC indemnification asset	(875		)	(611		)	(1,298		)	(6,308		)
Loans charged-off	(140		)	(2,189		)	(377		)	(5,053		)
Recoveries of loans charged-off	1,571			1,173			2,084			4,513
Net recoveries (charge-offs)	1,431			(1,016		)	1,707			(540		)
Balance at end of period	$	2,215		$	1,667		$	2,215		$	1,667

In conjunction with FDIC-assisted transactions, the Company entered into loss share agreements with the FDIC. Additional expected losses, to the extent such expected losses result in the recognition of an allowance for loan losses, will increase the FDIC indemnification asset. The allowance for loan losses for loans acquired in FDIC-assisted transactions is determined without giving consideration to the amounts recoverable through loss share agreements (since the loss share agreements are separately accounted for and thus presented “gross” on the balance sheet). On the Consolidated Statements of Income, the provision for credit losses is reported net of changes in the amount recoverable under the loss share agreements. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will reduce the FDIC indemnification asset. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC indemnification asset. See “FDIC-Assisted Transactions” within Note 3 – Business Combinations for more detail.

Impaired Loans

A summary of impaired loans, including troubled debt restructurings ("TDRs"), is as follows:

	June 30,		December 31,		June 30,
(Dollars in thousands)	2015		2014		2014
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,748	$	69,487	$	91,511
Impaired loans with no allowance for loan loss required	52,609		57,925		45,734
Total impaired loans (2)	$	103,357	$	127,412	$	137,245
Allowance for loan losses related to impaired loans	$	10,075	$	6,270	$	10,298
TDRs	$	62,776	$	82,275	$	88,107

(1) These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

(2) Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if theloan is current with all payments of principal and interest.

22

The following tables present impaired loans evaluated for impairment by loan class for the periods ended as follows:

							For the Six Months Ended
	As of June 30, 2015						June 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	6,702	$	7,141	$	2,000	$	6,876	$	166
Franchise	905		905		200		912		15
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	65		65		65		66		2
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	6,924		10,539		50		6,931		294
Office	7,005		7,010		2,414		7,060		154
Industrial	1,218		1,218		558		1,218		34
Retail	8,336		9,222		404		8,482		194
Multi-family	2,149		2,258		322		2,168		51
Mixed use and other	10,507		12,694		1,847		10,557		290
Home equity	1,673		1,728		808		1,680		34
Residential real estate	6,945		7,138		1,363		6,963		137
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	180		245		44		190		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	3,760	$	6,731	$	—	$	4,052	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	2,023		2,023		—		2,023		48
Commercial construction	642		642		—		627		13
Land	1,906		2,643		—		1,924		50
Office	6,289		8,780		—		6,834		221
Industrial	2,022		2,200		—		2,059		88
Retail	4,099		5,248		—		4,113		112
Multi-family	592		1,015		—		598		22
Mixed use and other	11,683		12,008		—		12,427		266
Home equity	4,236		5,697		—		4,320		118
Residential real estate	13,258		14,961		—		13,553		294
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	238		267		—		241		7
Total loans, net of unearned income, excluding covered loans	$	103,357	$	122,378	$	10,075	$	105,874	$	2,835

23

							For the Twelve Months Ended
	As of December 31, 2014						December 31, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	9,989	$	10,785	$	1,915	$	10,784	$	539
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	5,011		8,626		43		5,933		544
Office	11,038		12,863		305		11,567		576
Industrial	195		277		15		214		13
Retail	11,045		14,566		487		12,116		606
Multi-family	2,808		3,321		158		2,839		145
Mixed use and other	21,777		24,076		2,240		21,483		1,017
Home equity	1,946		2,055		475		1,995		80
Residential real estate	5,467		5,600		606		5,399		241
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	211		213		26		214		10
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	5,797	$	8,862	$	—	$	6,664	$	595
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		87		100
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,875		3,085		—		3,183		151
Land	10,210		10,941		—		10,268		430
Office	4,132		5,020		—		4,445		216
Industrial	4,160		4,498		—		3,807		286
Retail	5,487		7,470		—		6,915		330
Multi-family	—		—		—		—		—
Mixed use and other	7,985		8,804		—		9,533		449
Home equity	4,453		6,172		—		4,666		256
Residential real estate	12,640		14,334		—		12,682		595
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	161		222		—		173		11
Total loans, net of unearned income, excluding covered loans	$	127,412	$	153,742	$	6,270	$	134,967	$	7,190

24

							For the Six Months Ended
	As of June 30, 2014						June 30, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	7,220	$	10,152	$	1,631	$	8,332	$	339
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	270		290		270		275		7
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,146		2,156		128		2,150		44
Land	11,687		15,538		363		11,876		378
Office	14,403		15,159		2,664		14,517		335
Industrial	3,349		3,455		227		3,372		76
Retail	14,320		14,733		1,590		14,343		304
Multi-family	2,835		3,349		119		2,857		73
Mixed use and other	27,418		27,565		2,111		28,474		551
Home equity	1,562		1,616		636		1,567		30
Residential real estate	5,997		6,372		457		5,914		140
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	304		364		102		308		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	4,222	$	8,666	$	—	$	4,591	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		150		50
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	1,031		1,031		—		1,051		23
Land	3,917		4,958		—		5,657		131
Office	2,598		2,599		—		2,605		73
Industrial	3,603		3,839		—		3,155		95
Retail	6,422		7,813		—		6,456		188
Multi-family	440		966		—		497		22
Mixed use and other	5,330		7,842		—		5,875		218
Home equity	4,468		6,553		—		4,842		138
Residential real estate	12,422		15,538		—		12,836		295
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	1,256		1,775		—		1,260		53
Total loans, net of unearned income, excluding covered loans	$	137,245	$	164,281	$	10,298	$	142,960	$	3,790

25

TDRs

At June 30, 2015, the Company had $62.8 million in loans modified in TDRs. The $62.8 million in TDRs represents 122 credits in which economic concessions were granted to certain borrowers to better align the terms of their loans with their current ability to pay.

The Company’s approach to restructuring loans, excluding PCI loans, is built on its credit risk rating system which requires credit management personnel to assign a credit risk rating to each loan. In each case, the loan officer is responsible for recommending a credit risk rating for each loan and ensuring the credit risk ratings are appropriate. These credit risk ratings are then reviewed and approved by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. The Company’s credit risk rating scale is one through ten with higher scores indicating higher risk. In the case of loans rated six or worse following modification, the Company’s Managed Assets Division evaluates the loan and the credit risk rating and determines that the loan has been restructured to be reasonably assured of repayment and of performance according to the modified terms and is supported by a current, well-documented credit assessment of the borrower’s financial condition and prospects for repayment under the revised terms.

A modification of a loan, excluding PCI loans, with an existing credit risk rating of six or worse or a modification of any other credit which will result in a restructured credit risk rating of six or worse, must be reviewed for possible TDR classification. In that event, our Managed Assets Division conducts an overall credit and collateral review. A modification of these loans is considered to be a TDR if both (1) the borrower is experiencing financial difficulty and (2) for economic or legal reasons, the bank grants a concession to a borrower that it would not otherwise consider. The modification of a loan, excluding PCI loans, where the credit risk rating is five or better both before and after such modification is not considered to be a TDR. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is five or better are not experiencing financial difficulties and therefore, are not considered TDRs.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless at any subsequent re-modification the borrower has been in compliance with the loan’s modified terms for a period of six months (including over a calendar year-end) and the current interest rate represents a market rate at the time of restructuring. The Managed Assets Division, in consultation with the respective loan officer, determines whether the modified interest rate represented a current market rate at the time of restructuring. Using knowledge of current market conditions and rates, competitive pricing on recent loan originations, and an assessment of various characteristics of the modified loan (including collateral position and payment history), an appropriate market rate for a new borrower with similar risk is determined. If the modified interest rate meets or exceeds this market rate for a new borrower with similar risk, the modified interest rate represents a market rate at the time of restructuring. Additionally, before removing a loan from TDR classification, a review of the current or previously measured impairment on the loan and any concerns related to future performance by the borrower is conducted. If concerns exist about the future ability of the borrower to meet its obligations under the loans based on a credit review by the Managed Assets Division, the TDR classification is not removed from the loan.

TDRs are reviewed at the time of the modification and on a quarterly basis to determine if a specific reserve is necessary. The carrying amount of the loan is compared to the expected payments to be received, discounted at the loan's original rate, or for collateral dependent loans, to the fair value of the collateral. Any shortfall is recorded as a specific reserve. The Company, in accordance with ASC 310-10, continues to individually measure impairment of these loans after the TDR classification is removed.

Each TDR was reviewed for impairment at June 30, 2015 and approximately $3.7 million of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2015 and 2014, the Company recorded $94,000 and $103,000, respectively, in interest income representing this decrease in impairment. For the six months ended June 30, 2015 and 2014, the Company recorded $287,000 and $235,000, respectively, to interest income representing the reduction in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2015, the Company had $9.4 million of foreclosed residential real estate properties included within OREO.

26

The tables below present a summary of the post-modification balance of loans restructured during the three and six months ended June 30, 2015 and 2014, respectively, which represent TDRs:

Three months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	5	1,148		5	1,148		2	372		—	—		—	—
Total loans	6	$	1,317	6	$	1,317	2	$	372	1	$	169	—	$	—

Three months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	4	1,049		1	233		4	1,049		—	—		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	7	$	2,240	3	$	1,243	5	$	1,230	1	$	220	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

During the three months ended June 30, 2015, six loans totaling $1.3 million were determined to be TDRs, compared to seven loans totaling $2.2 million in the same period of 2014. Of these loans extended at below market terms, the weighted average extension had a term of approximately 29 months during the three months ended June 30, 2015 compared to 16 months for the same period of 2014. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 408 basis points and 137 basis points during the three months ending June 30, 2015 and 2014, respectively. Interest-only payment terms were approximately 29 months during the three months ending June 30, 2015 compared to approximately six months during the three months ending June 30, 2014. Additionally, no principal balances were forgiven in the second quarter of 2015 or 2014.

27

Six months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	8	1,442		8	1,442		4	452		1	50		—	—
Total loans	9	$	1,611	9	$	1,611	4	$	452	2	$	219	—	$	—

Six months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	1	$	88	—	$	—	1	$	88	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	1	1,078		1	1,078		—	—		1	1,078		—	—
Retail	1	202		1	202		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	7	4,926		3	2,837		7	4,926		1	1,273		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	13	$	7,485	8	$	5,215	8	$	5,107	4	$	2,659	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

During the six months ended June 30, 2015, nine loans totaling $1.6 million were determined to be TDRs, compared to 13 loans totaling $7.5 million in the same period of 2014. Of these loans extended at below market terms, the weighted average extension had a term of approximately 27 months during the six months ended June 30, 2015 compared to 14 months for the same period of 2014. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 367 basis points and 167 basis points during the six months ending June 30, 2015 and 2014, respectively. Interest-only payment terms were approximately 28 months and nine months during the six months ending June 30, 2015 and 2014, respectively. Additionally, no balances were forgiven in the first six months of 2015 or 2014.

28

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2015 and 2014, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2015			Three Months Ended June 30, 2015			Six Months Ended June 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Land	—	—		—	—		—	—
Office	1	720		—	—		—	—
Industrial	2	854		—	—		—	—
Retail	—	—		—	—		—	—
Multi-family	—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	13	3,058		4	833		4	833
Total loans	17	$	6,093	4	$	833	4	$	833

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

(Dollars in thousands)	As of June 30, 2014			Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	—	$	—	—	$	—
Commercial real estate
Land	1	2,352		1	2,352		1	2,352
Office	2	1,345		—	—		—	—
Industrial	1	1,078		1	1,078		1	1,078
Retail	1	202		—	—		—	—
Multi-family	1	181		—	—		—	—
Mixed use and other	11	6,436		3	577		3	577
Residential real estate and other	4	1,738		1	169		1	169
Total loans	22	$	13,420	6	$	4,176	6	$	4,176

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

29

(8) Goodwill and Other Intangible Assets

A summary of the Company’s goodwill assets by business segment is presented in the following table:

(Dollars in thousands)	January 1, 2015		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2015
Community banking	$	331,752	$	17,383	$	—	$	—		$	349,135
Specialty finance	41,768		—		—		(1,371		)	40,397
Wealth management	32,114		—		—		—			32,114
Total	$	405,634	$	17,383	$	—	$	(1,371	)	$	421,646

The community banking segment's goodwill increased $17.4 million in the first six months of 2015 as a result of the acquisition of Delavan. The specialty finance segment's goodwill decreased $1.4 million in the first six months of 2015 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2015, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not that an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2015.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2015 is as follows:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	25,881		$	29,379		$	40,770
Accumulated amortization	(14,983		)	(17,879		)	(31,223		)
Net carrying amount	$	10,898		$	11,500		$	9,547
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,001		)	(941		)	(878		)
Net carrying amount	$	799		$	859		$	922
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,690
Accumulated amortization	(1,713		)	(1,488		)	(1,265		)
Net carrying amount	$	6,227		$	6,452		$	6,425
Total other intangible assets, net	$	17,924		$	18,811		$	16,894

Estimated amortization
Actual in six months ended June 30, 2015	$	1,947
Estimated remaining in 2015	1,766
Estimated—2016	3,007
Estimated—2017	2,499
Estimated—2018	2,186
Estimated—2019	1,837

The core deposit intangibles recognized in connection with prior bank acquisitions are amortized over a ten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis while the customer list intangibles recognized in connection with prior acquisitions within the wealth management segment are being amortized over a ten-year period on a straight-line basis.

Total amortization expense associated with finite-lived intangibles totaled approximately $1.9 million and $2.3 million for the six months ended June 30, 2015 and 2014, respectively.

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(9) Deposits

The following table is a summary of deposits as of the dates shown:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Balance:
Non-interest bearing	$	3,910,310		$	3,518,685		$	3,072,430
NOW and interest bearing demand deposits	2,240,832			2,236,089			2,002,868
Wealth management deposits	1,591,251			1,226,916			1,220,102
Money market	3,898,495			3,651,467			3,591,540
Savings	1,504,654			1,508,877			1,427,222
Time certificates of deposit	3,936,876			4,139,810			4,242,214
Total deposits	$	17,082,418		$	16,281,844		$	15,556,376
Mix:
Non-interest bearing	23		%	22		%	20		%
NOW and interest bearing demand deposits	13			14			13
Wealth management deposits	9			8			8
Money market	23			22			23
Savings	9			9			9
Time certificates of deposit	23			25			27
Total deposits	100		%	100		%	100		%

Wealth management deposits represent deposit balances (primarily money market accounts) at the Company’s subsidiary banks from brokerage customers of Wayne Hummer Investments, trust and asset management customers of CTC and brokerage customers from unaffiliated companies.

(10) Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes

The following table is a summary of notes payable, Federal Home Loan Bank advances, other borrowings and subordinated notes as of the dates shown:

(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014
Federal Home Loan Bank advances	$	444,017	$	733,050	$	580,582
Other borrowings:
Notes payable	75,000		—		—
Securities sold under repurchase agreements	48,295		48,566		24,633
Other	18,556		18,822		19,083
Secured borrowings	120,057		129,077		—
Total other borrowings	261,908		196,465		43,716
Subordinated notes	140,000		140,000		140,000
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	845,925	$	1,069,515	$	764,298

Federal Home Loan Bank Advances

Federal Home Loan Bank advances consist of obligations of the banks and are collateralized by qualifying residential real estate and home equity loans and certain securities. FHLB advances are stated at par value of the debt adjusted for unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

Notes Payable

At June 30, 2015, notes payable represented a $75.0 million term facility ("Term Facility"), which is part of a $150.0 million loan agreement with unaffiliated banks dated December 15, 2014. The agreement consists of the Term Facility and a $75.0 million revolving credit facility ("Revolving Credit Facility"). At June 30, 2015, the Company had an outstanding balance of $75.0 million compared to no outstanding balance at December 31, 2014 under the Term Facility. The Company was required to borrow the

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entire amount of the Term Facility on June 15, 2015 and all such borrowings must be repaid by June 15, 2020. Beginning September 30, 2015, the Company will be required to make straight-line quarterly amortizing payments on the Term Facility. At June 30, 2015 and December 31, 2014, the Company had no outstanding balance under the Revolving Credit Facility. All borrowings under the Revolving Credit Facility must be repaid by December 14, 2015. Borrowings under the agreement that are considered “Base Rate Loans” bear interest at a rate equal to the sum of (1) 50 basis points (in the case of a borrowing under the Revolving Credit Facility) or 75 basis points (in the case of a borrowing under the Term Facility) plus (2) the highest of (a) the federal funds rate plus 50 basis points, (b) the lender's prime rate, and (c) the Eurodollar Rate (as defined below) that would be applicable for an interest period of one month plus 100 basis points. Borrowings under the agreement that are considered “Eurodollar Rate Loans” bear interest at a rate equal to the sum of (1) 150 basis points (in the case of a borrowing under the Revolving Credit Facility) or 175 basis points (in the case of a borrowing under the Term Facility) plus (2) the LIBOR rate for the applicable period, as adjusted for statutory reserve requirements for eurocurrency liabilities (the “Eurodollar Rate”). A commitment fee is payable quarterly equal to 0.20% of the actual daily amount by which the lenders' commitment under the Revolving Credit Facility exceeded the amount outstanding under such facility.

In prior periods, the Company has had a $101.0 million loan agreement with unaffiliated banks dated as of October 30, 2009, which had been amended at least annually between 2009 and 2014. The agreement consisted of a $100.0 million revolving credit facility, maturing on October 25, 2013, and a $1.0 million term loan maturing on June 1, 2015. In 2013, the Company repaid and terminated the $1.0 million term loan, and amended the agreement, effectively extending the maturity date on the revolving credit facility from October 25, 2013 to November 6, 2014. The agreement was also amended in 2014 effectively extending the term to December 15, 2014 at which time the agreement matured. At June 30, 2014, no amount was outstanding on the $100.0 million revolving credit facility.

Borrowings under the agreements are secured by pledges of and first priority perfected security interests in the Company's equity interest in its bank subsidiaries and contain several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and other indebtedness. At June 30, 2015, the Company was in compliance with all such covenants. The Revolving Credit Facility and the Term Facility are available to be utilized, as needed, to provide capital to fund continued growth at the Company’s banks and to serve as an interim source of funds for acquisitions, common stock repurchases or other general corporate purposes.

Securities Sold Under Repurchase Agreements

At June 30, 2015, December 31, 2014 and June 30, 2014, securities sold under repurchase agreements represent $48.3 million, $48.6 million and $24.6 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of June 30, 2015, the Company had pledged securities related to its customer balances in sweep accounts of $76.6 million. Securities pledged for customer balances in sweep accounts and short-term borrowings from brokers are maintained under the Company’s control and consist of U.S. Government agency, mortgage-backed and corporate securities. These securities are included in the available-for-sale securities portfolio as reflected on the Company’s Consolidated Statements of Condition. The following is a summary of these securities pledged disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

As of June 30, 2015
(Dollars in thousands)	Overnight Sweep Collateral
U.S. Treasury	$	12,625
U.S. Government agencies	23,084
Municipal	7,518
Corporate notes:
Financial issuers	17,932
Mortgage-backed: (1)
Mortgage-backed securities	15,487
Equity securities	—
Total collateral pledged	$	76,646
Excess collateral	28,351
Repurchase Agreements	$	48,295

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Other Borrowings

Other borrowings at June 30, 2015 represent a fixed-rate promissory note issued by the Company in August 2012 ("Fixed-Rate Promissory Note") related to and secured by an office building owned by the Company. At June 30, 2015, the Fixed-Rate Promissory Note had an outstanding balance of $18.6 million compared to an outstanding balance of $18.8 million and $19.1 million at December 31, 2014 and June 30, 2014, respectively. Under the Fixed-Rate Promissory Note, the Company will make monthly principal payments and pay interest at a fixed rate of 3.75% until maturity on September 1, 2017.

Secured Borrowings

In December 2014, the Company, through its subsidiary, FIFC Canada, sold an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for a cash payment of approximately C$150 million pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). The proceeds received from the transaction are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party and translated to the Company’s reporting currency as of the respective date. At June 30, 2015 the translated balance of the secured borrowing under the Receivable Purchase Agreement totaled $120.1 million compared to $129.1 million at December 31, 2014. Additionally, the interest rate under the Receivables Purchase Agreement at June 30, 2015 was 1.4928%.

Subordinated Notes

At June 30, 2015, December 31, 2014 and June 30, 2014, the Company had outstanding subordinated notes totaling $140.0 million. In the second quarter of 2014, the Company issued $140.0 million of subordinated notes receiving $139.1 million in net proceeds. The notes have a stated interest rate of 5.00% and mature in June 2024.

(11) Junior Subordinated Debentures

As of June 30, 2015, the Company owned 100% of the common securities of nine trusts, Wintrust Capital Trust III, Wintrust Statutory Trust IV, Wintrust Statutory Trust V, Wintrust Capital Trust VII, Wintrust Capital Trust VIII, Wintrust Capital Trust IX, Northview Capital Trust I, Town Bankshares Capital Trust I, and First Northwest Capital Trust I (the “Trusts”) set up to provide long-term financing. The Northview, Town and First Northwest capital trusts were acquired as part of the acquisitions of Northview Financial Corporation, Town Bankshares, Ltd., and First Northwest Bancorp, Inc., respectively. The Trusts were formed for purposes of issuing trust preferred securities to third-party investors and investing the proceeds from the issuance of the trust preferred securities and common securities solely in junior subordinated debentures issued by the Company (or assumed by the Company in connection with an acquisition), with the same maturities and interest rates as the trust preferred securities. The junior subordinated debentures are the sole assets of the Trusts. In each Trust, the common securities represent approximately 3% of the junior subordinated debentures and the trust preferred securities represent approximately 97% of the junior subordinated debentures.

The Trusts are reported in the Company’s consolidated financial statements as unconsolidated subsidiaries. Accordingly, in the Consolidated Statements of Condition, the junior subordinated debentures issued by the Company to the Trusts are reported as liabilities and the common securities of the Trusts, all of which are owned by the Company, are included in available-for-sale securities.

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2015. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2015		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.53	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.08	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	2.88	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.24	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		40,000		41,238		L+1.45	1.73	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	1.92	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.28	%	05/2004	05/2034	05/2009
Total					$	249,493		2.47	%

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The junior subordinated debentures totaled $249.5 million at June 30, 2015, December 31, 2014 and June 30, 2014.

The interest rates on the variable rate junior subordinated debentures are based on the three-month LIBOR rate and reset on a quarterly basis. At June 30, 2015, the weighted average contractual interest rate on the junior subordinated debentures was 2.47%. The Company entered into interest rate swaps and caps with an aggregate notional value of $225 million to hedge the variable cash flows on certain junior subordinated debentures. The hedge-adjusted rate on the junior subordinated debentures as of June 30, 2015, was 3.28%. Distributions on the common and preferred securities issued by the Trusts are payable quarterly at a rate per annum equal to the interest rates being earned by the Trusts on the junior subordinated debentures. Interest expense on the junior subordinated debentures is deductible for income tax purposes.

The Company has guaranteed the payment of distributions and payments upon liquidation or redemption of the trust preferred securities, in each case to the extent of funds held by the Trusts. The Company and the Trusts believe that, taken together, the obligations of the Company under the guarantees, the junior subordinated debentures, and other related agreements provide, in the aggregate, a full, irrevocable and unconditional guarantee, on a subordinated basis, of all of the obligations of the Trusts under the trust preferred securities. Subject to certain limitations, the Company has the right to defer the payment of interest on the junior subordinated debentures at any time, or from time to time, for a period not to exceed 20 consecutive quarters. The trust preferred securities are subject to mandatory redemption, in whole or in part, upon repayment of the junior subordinated debentures at maturity or their earlier redemption. The junior subordinated debentures are redeemable in whole or in part prior to maturity at any time after the earliest redemption dates shown in the table, and earlier at the discretion of the Company if certain conditions are met, and, in any event, only after the Company has obtained Federal Reserve approval, if then required under applicable guidelines or regulations.

Prior to January 1, 2015, the junior subordinated debentures, subject to certain limitations, qualified as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations could, subject to other restrictions, be included in Tier 2 capital. At December 31, 2014 and June 30, 2014, all of the junior subordinated debentures, net of the common securities, were included in the Company's Tier 1 regulatory capital. Starting in 2015, a portion of these junior subordinated debentures still qualified as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations, subject to certain restrictions, was included in Tier 2 capital. At June 30, 2015, $60.5 million and $181.5 million of the junior subordinated debentures, net of common securities, were included in the Company's Tier 1 and Tier 2 regulatory capital, respectively.

(12) Segment Information

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management.

The three reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of the fifteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated into one reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans originated by the specialty finance segment and sold to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note 9 — Deposits, for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment's risk-weighted assets.

The segment financial information provided in the following tables has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the segments are substantially similar to as those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2014 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

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The following is a summary of certain operating information for reportable segments:

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	126,964		$	121,228		$	5,736		5	%
Specialty Finance	21,338			19,792			1,546			8
Wealth Management	4,280			4,006			274			7
Total Operating Segments	152,582			145,026			7,556			5
Intersegment Eliminations	4,310			4,154			156			4
Consolidated net interest income	$	156,892		$	149,180		$	7,712		5	%
Non-interest income:
Community Banking	$	56,253		$	33,337		$	22,916		69	%
Specialty Finance	9,135			8,455			680			8
Wealth Management	19,013			19,235			(222		)	(1	)
Total Operating Segments	84,401			61,027			23,374			38
Intersegment Eliminations	(7,388		)	(6,925		)	(463		)	(7	)
Consolidated non-interest income	$	77,013		$	54,102		$	22,911		42	%
Net revenue:
Community Banking	$	183,217		$	154,565		$	28,652		19	%
Specialty Finance	30,473			28,247			2,226			8
Wealth Management	23,293			23,241			52			—
Total Operating Segments	236,983			206,053			30,930			15
Intersegment Eliminations	(3,078		)	(2,771		)	(307		)	(11	)
Consolidated net revenue	$	233,905		$	203,282		$	30,623		15	%
Segment profit:
Community Banking	$	29,133		$	24,628		$	4,505		18	%
Specialty Finance	11,378			10,302			1,076			10
Wealth Management	3,320			3,611			(291		)	(8	)
Consolidated net income	$	43,831		$	38,541		$	5,290		14	%
Segment assets:
Community Banking	$	17,321,956		$	15,669,443		$	1,652,513		11	%
Specialty Finance	2,931,975			2,703,761			228,214			8
Wealth Management	545,993			522,477			23,516			5
Consolidated total assets	$	20,799,924		$	18,895,681		$	1,904,243		10	%

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	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	249,645		$	237,983		$	11,662		5	%
Specialty Finance	42,384			39,004			3,380			9
Wealth Management	8,469			8,105			364			4
Total Operating Segments	300,498			285,092			15,406			5
Intersegment Eliminations	8,285			8,094			191			2
Consolidated net interest income	$	308,783		$	293,186		$	15,597		5	%
Non-interest income:
Community Banking	$	101,165		$	60,656		$	40,509		67	%
Specialty Finance	17,006			16,336			670			4
Wealth Management	37,741			36,176			1,565			4
Total Operating Segments	155,912			113,168			42,744			38
Intersegment Eliminations	(14,358		)	(13,537		)	(821		)	(6	)
Consolidated non-interest income	$	141,554		$	99,631		$	41,923		42	%
Net revenue:
Community Banking	$	350,810		$	298,639		$	52,171		17	%
Specialty Finance	59,390			55,340			4,050			7
Wealth Management	46,210			44,281			1,929			4
Total Operating Segments	456,410			398,260			58,150			15
Intersegment Eliminations	(6,073		)	(5,443		)	(630		)	(12	)
Consolidated net revenue	$	450,337		$	392,817		$	57,520		15	%
Segment profit:
Community Banking	$	54,098		$	47,209		$	6,889		15	%
Specialty Finance	22,330			19,284			3,046			16
Wealth Management	6,455			6,548			(93		)	(1	)
Consolidated net income	$	82,883		$	73,041		$	9,842		13	%

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(13) Derivative Financial Instruments

The Company primarily enters into derivative financial instruments as part of its strategy to manage its exposure to changes in interest rates. Derivative instruments represent contracts between parties that result in one party delivering cash to the other party based on a notional amount and an underlying term (such as a rate, security price or price index) specified in the contract. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying term. Derivatives are also implicit in certain contracts and commitments.

The derivative financial instruments currently used by the Company to manage its exposure to interest rate risk include: (1) interest rate swaps and caps to manage the interest rate risk of certain fixed and variable rate assets and variable rate liabilities; (2) interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market; (3) forward commitments for the future delivery of such mortgage loans to protect the Company from adverse changes in interest rates and corresponding changes in the value of mortgage loans held-for-sale; and (4) covered call options to economically hedge specific investment securities and receive fee income effectively enhancing the overall yield on such securities to compensate for net interest margin compression. The Company also enters into derivatives (typically interest rate swaps) with certain qualified borrowers to facilitate the borrowers’ risk management strategies and concurrently enters into mirror-image derivatives with a third party counterparty, effectively making a market in the derivatives for such borrowers. Additionally, the Company enters into foreign currency contracts to manage foreign exchange risk associated with certain foreign currency denominated assets.

The Company has purchased interest rate cap derivatives to hedge or manage its own risk exposures. Certain interest rate cap derivatives have been designated as cash flow hedge derivatives of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures and certain deposits. Other cap derivatives are not designated for hedge accounting but are economic hedges of the Company's overall portfolio, therefore any mark to market changes in the value of these caps are recognized in earnings.

Below is a summary of the interest rate cap derivatives held by the Company as of June 30, 2015:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	June 30, 2015
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	2
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	34
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	11
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	14
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	199
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	53
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	253
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	216
		$	796,500		$	782

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of other comprehensive income depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge. Generally, changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges, to the extent they are effective hedges, are recorded as a component of other comprehensive income, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815, including changes in fair value related to the ineffective portion of cash flow hedges, are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated through comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

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The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2015, December 31, 2014 and June 30, 2014:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	514	$	1,390	$	1,663	$	1,573	$	1,994	$	2,727
Interest rate derivatives designated as Fair Value Hedges	39		52		65		—		—		3
Total derivatives designated as hedging instruments under ASC 815	$	553	$	1,442	$	1,728	$	1,573	$	1,994	$	2,730
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	36,194	$	36,399	$	35,733	$	35,032	$	34,927	$	34,003
Interest rate lock commitments	11,990		10,028		13,479		—		20		9
Forward commitments to sell mortgage loans	—		23		27		3,805		4,239		6,901
Foreign exchange contracts	181		72		—		89		—		7
Total derivatives not designated as hedging instruments under ASC 815	$	48,365	$	46,522	$	49,239	$	38,926	$	39,186	$	40,920
Total Derivatives	$	48,918	$	47,964	$	50,967	$	40,499	$	41,180	$	43,650

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to net interest income and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps and interest rate caps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate caps designated as cash flow hedges involve the receipt of payments at the end of each period in which the interest rate specified in the contract exceeds the agreed upon strike price.

During the first quarter of 2014, the Company designated two existing interest rate cap derivatives as cash flow hedges of variable rate deposits. The cap derivatives had notional amounts of $216.5 million and $43.5 million, respectively, both maturing in August 2016. Additionally, as of June 30, 2015, the Company had two interest rate swaps and two interest rate caps designated as hedges of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures. The effective portion of changes in the fair value of these cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified to interest expense as interest payments are made on the Company’s variable rate junior subordinated debentures. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income. The ineffective portion of the change in fair value of these derivatives is recognized directly in earnings; however, no hedge ineffectiveness was recognized during the six months ended June 30, 2015 or June 30, 2014. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

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The table below provides details on each of these cash flow hedges as of June 30, 2015:

	June 30, 2015
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	50,000		(1,027		)
October 2016	25,000		(546		)
Total Interest Rate Swaps	75,000		(1,573		)
Interest Rate Caps:
August 2016	43,500		11
August 2016	216,500		34
September 2017	50,000		253
September 2017	40,000		216
Total Interest Rate Caps	350,000		514
Total Cash Flow Hedges	$	425,000	$	(1,059	)

A rollforward of the amounts in accumulated other comprehensive loss related to interest rate derivatives designated as cash flow hedges follows:

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Unrealized loss at beginning of period	$	(4,623	)	$	(4,069	)	$	(4,062	)	$	(3,971	)
Amount reclassified from accumulated other comprehensive loss to interest expense on junior subordinated debentures	475			521			889			1,014
Amount of loss recognized in other comprehensive income	(260		)	(1,147		)	(1,235		)	(1,738		)
Unrealized loss at end of period	$	(4,408	)	$	(4,695	)	$	(4,408	)	$	(4,695	)

As of June 30, 2015, the Company estimates that during the next twelve months, $2.8 million will be reclassified from accumulated other comprehensive loss as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of June 30, 2015, the Company has three interest rate swaps with an aggregate notional amount of $4.5 million that were designated as fair value hedges associated with fixed rate commercial franchise loans.

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $2,000 and a net loss of $1,000 in other income related to hedge ineffectiveness for the three months ended June 30, 2015 and 2014, respectively and a net loss of $2,000 and $3,000 for the respective year-to-date periods.

On June 1, 2013, the Company de-designated a $96.5 million cap which was previously designated as a fair value hedge of interest rate risk associated with an embedded cap in one of the Company’s floating rate loans. The hedged loan was restructured which resulted in the interest rate cap no longer qualifying as an effective fair value hedge. As such, the interest rate cap derivative is no longer accounted for under hedge accounting and all changes in value subsequent to June 1, 2013 are recorded in earnings. Additionally, the Company has recorded amortization of the basis in the previously hedged item as a reduction to interest income of $43,000 and $86,000 in the three month and six month periods ended June 30, 2015 and 2014, respectively.

39

The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2015 and 2014:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative Three Months Ended					Amount of (Loss)/Gain Recognized in Income on Hedged Item Three Months Ended					Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Three Months Ended
		June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014		June 30, 2015		June 30, 2014
Interest rate swaps	Trading gains (losses), net	$	17	$	(26	)	$	(15	)	$	25	$	2	$	(1	)

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Losses Recognized in Income on Derivative Six Months Ended						Amount of Gains Recognized in Income on Hedged Item Six Months Ended				Income Statement Losses due to Hedge Ineffectiveness Six Months Ended
		June 30, 2015			June 30, 2014			June 30, 2015		June 30, 2014		June 30, 2015			June 30, 2014
Interest rate swaps	Trading (losses) gains, net	$	(15	)	$	(43	)	$	13	$	40	$	(2	)	$	(3	)

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as hedges are used to manage the Company’s exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of ASC 815. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.

Interest Rate Derivatives—The Company has interest rate derivatives, including swaps and option products, resulting from a service the Company provides to certain qualified borrowers. The Company’s banking subsidiaries execute certain derivative products (typically interest rate swaps) directly with qualified commercial borrowers to facilitate their respective risk management strategies. For example, these arrangements allow the Company’s commercial borrowers to effectively convert a variable rate loan to a fixed rate. In order to minimize the Company’s exposure on these transactions, the Company simultaneously executes offsetting derivatives with third parties. In most cases, the offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. However, to the extent that the derivatives are not a mirror-image and because of differences in counterparty credit risk, changes in fair value will not completely offset resulting in some earnings impact each period. Changes in the fair value of these derivatives are included in non-interest income. At June 30, 2015, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $3.2 billion (all interest rate swaps and caps with customers and third parties) related to this program. These interest rate derivatives had maturity dates ranging from July 2015 to February 2045.

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of our residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At June 30, 2015, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $902.9 million and interest rate lock commitments with an aggregate notional amount of approximately $531.5 million. Additionally, the Company’s total mortgage loans held-for-sale at June 30, 2015 was $497.3 million. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

Foreign Currency Derivatives—These derivatives include foreign currency contracts used to manage the foreign exchange risk associated with foreign currency denominated assets and transactions. Foreign currency contracts, which include spot and forward contracts, represent agreements to exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. As a result of fluctuations in foreign currencies, the U.S. dollar-equivalent value of the foreign currency denominated assets or forecasted transactions increase or decrease. Gains or losses on the derivative instruments related to these foreign currency denominated assets or forecasted transactions are expected to substantially offset this variability. As of June 30, 2015 the Company held foreign currency derivatives with an aggregate notional amount of approximately $14.0 million.

40

Other Derivatives—Periodically, the Company will sell options to a bank or dealer for the right to purchase certain securities held within the banks’ investment portfolios (covered call options). These option transactions are designed primarily to mitigate overall interest rate risk and to increase the total return associated with the investment securities portfolio. These options do not qualify as hedges pursuant to ASC 815, and, accordingly, changes in fair value of these contracts are recognized in non-interest income. There were no covered call options outstanding as of June 30, 2015, December 31, 2014 or June 30, 2014.

As discussed above, the Company has entered into interest rate cap derivatives to protect the Company in a rising rate environment against increased margin compression due to the repricing of variable rate liabilities and lack of repricing of fixed rate loans and/or securities. As of June 30, 2015, the Company held four interest rate cap derivative contracts, which are not designated in hedge relationships, with an aggregate notional value of $446.5 million.

Amounts included in the Consolidated Statements of Income related to derivative instruments not designated in hedge relationships were as follows:

(Dollars in thousands)		Three Months Ended					Six Months Ended
Derivative	Location in income statement	June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014
Interest rate swaps and caps	Trading gains (losses), net	$	133	$	(737	)	$	(317	)	$	(1,414	)
Mortgage banking derivatives	Mortgage banking revenue	299		(4,885		)	2,393			(1,208		)
Covered call options	Fees from covered call options	4,565		1,244			8,925			2,786
Foreign exchange contracts	Trading gains (losses), net	71		(10		)	20			(11		)

Credit Risk

Derivative instruments have inherent risks, primarily market risk and credit risk. Market risk is associated with changes in interest rates and credit risk relates to the risk that the counterparty will fail to perform according to the terms of the agreement. The amounts potentially subject to market and credit risks are the streams of interest payments under the contracts and the market value of the derivative instrument and not the notional principal amounts used to express the volume of the transactions. Market and credit risks are managed and monitored as part of the Company's overall asset-liability management process, except that the credit risk related to derivatives entered into with certain qualified borrowers is managed through the Company's standard loan underwriting process since these derivatives are secured through collateral provided by the loan agreements. Actual exposures are monitored against various types of credit limits established to contain risk within parameters. When deemed necessary, appropriate types and amounts of collateral are obtained to minimize credit exposure.

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. As of June 30, 2015 the fair value of interest rate derivatives in a net liability position that were subject to such agreements, which includes accrued interest related to these agreements, was $35.4 million. If the Company had breached any of these provisions at June 30, 2015 it would have been required to settle its obligations under the agreements at the termination value and would have been required to pay any additional amounts due in excess of amounts previously posted as collateral with the respective counterparty.

The Company's is also exposed to the credit risk of its commercial borrowers who are counterparties to interest rate derivatives with the banks. This counterparty risk related to the commercial borrowers is managed and monitored through the banks' standard underwriting process applicable to loans since these derivatives are secured through collateral provided by the loan agreement. The counterparty risk associated with the mirror-image swaps executed with third parties is monitored and managed in connection with the Company's overall asset liability management process.

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The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative assets and liabilities on the Consolidated Statements of Condition. The tables below summarize the Company's interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets									Derivative Liabilities
	Fair Value									Fair Value
(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014			June 30, 2015			December 31, 2014			June 30, 2014
Gross Amounts Recognized	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(1,896		)	(2,771		)	(3,738		)	(1,896		)	(2,771		)	(3,738		)
Collateral Posted (1)	—			—			—			(34,709		)	(34,150		)	(26,354		)
Net Credit Exposure	$	34,851		$	35,070		$	33,723		$	—		$	—		$	6,641

(1) As of June 30, 2015 and December 31, 2014, the Company posted collateral of $36.0 million and $43.8 million, respectively, which resulted in excess collateral with its counterparties. For purposes of this disclosure, the amount of posted collateral is limited to the amount offsetting the derivative liability.

(14) Fair Values of Assets and Liabilities

The Company measures, monitors and discloses certain of its assets and liabilities on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the assumptions used to determine fair value. These levels are:

• Level 1—unadjusted quoted prices in active markets for identical assets or liabilities.

• Level 2—inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3—significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

A financial instrument’s categorization within the above valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the assets or liabilities. Following is a description of the valuation methodologies used for the Company’s assets and liabilities measured at fair value on a recurring basis.

Available-for-sale and trading account securities—Fair values for available-for-sale and trading securities are typically based on prices obtained from independent pricing vendors. Securities measured with these valuation techniques are generally classified as Level 2 of the fair value hierarchy. Typically, standard inputs such as benchmark yields, reported trades for similar securities, issuer spreads, benchmark securities, bids, offers and reference data including market research publications are used to fair value a security. When these inputs are not available, broker/dealer quotes may be obtained by the vendor to determine the fair value of the security. We review the vendor’s pricing methodologies to determine if observable market information is being used, versus unobservable inputs. Fair value measurements using significant inputs that are unobservable in the market due to limited activity or a less liquid market are classified as Level 3 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale securities. The methodology and variables used as inputs in pricing Level 3 securities are derived from a combination of observable and unobservable inputs. The unobservable inputs are determined through internal assumptions that may vary from period to period due to external factors, such as market movement and credit rating adjustments.

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At June 30, 2015, the Company classified $58.6 million of municipal securities as Level 3. These municipal securities are bond issues for various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing the non-rated bonds focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2015, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2015 have a call date that has passed, and are now continuously callable. When valuing these bonds, the fair value is capped at par value as the Company assumes a market participant would not pay more than par for a continuously callable bond.

At June 30, 2015, the Company held $25.0 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company utilizes an independent pricing vendor to provide a fair market valuation of these securities. The vendor’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a credit spread derived from the market price of the securities underlying debt. At June 30, 2015, the vendor considered five different securities whose implied credit spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The credit spreads ranged from 1.77%-2.02% with an average of 1.86% which was added to three-month LIBOR to be used as the discount rate input to the vendor’s model. Fair value of the securities is sensitive to the discount rate utilized as a higher discount rate results in a decreased fair value measurement.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is determined by reference to investor price sheets for loan products with similar characteristics.

Mortgage servicing rights—Fair value for mortgage servicing rights is determined utilizing a third party valuation model which stratifies the servicing rights into pools based on product type and interest rate. The fair value of each servicing rights pool is calculated based on the present value of estimated future cash flows using a discount rate commensurate with the risk associated with that pool, given current market conditions. At June 30, 2015, the Company classified $8.0 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the pool of mortgage servicing rights at June 30, 2015 was 9.15% with discount rates applied ranging from 9%-13%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, fair value estimates include assumptions about prepayment speeds which ranged from 10%-25% or a weighted average prepayment speed of 11.83% used as an input to value the pool of mortgage servicing rights at June 30, 2015. Prepayment speeds are inversely related to the fair value of mortgage servicing rights as an increase in prepayment speeds results in a decreased valuation.

Derivative instruments—The Company’s derivative instruments include interest rate swaps and caps, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans and foreign currency contracts. Interest rate swaps and caps are valued by a third party, using models that primarily use market observable inputs, such as yield curves, and are corroborated by comparison with valuations provided by the respective counterparties. The credit risk associated with derivative financial instruments that are subject to master netting agreements is measured on a net basis by counterparty portfolio. The fair value for mortgage-related derivatives is based on changes in mortgage rates from the date of the commitments. The fair value of foreign currency derivatives is computed based on change in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

Nonqualified deferred compensation assets—The underlying assets relating to the nonqualified deferred compensation plan are included in a trust and primarily consist of non-exchange traded institutional funds which are priced based by an independent third party service.

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The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

	June 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	281,161	$	—	$	281,161	$	—
U.S. Government agencies	628,660		—		628,660		—
Municipal	269,790		—		211,218		58,572
Corporate notes	128,141		—		128,141		—
Mortgage-backed	800,101		—		800,101		—
Equity securities	54,208		—		29,212		24,996
Trading account securities	1,597		—		1,597		—
Mortgage loans held-for-sale	497,283		—		497,283		—
Mortgage servicing rights	8,034		—		—		8,034
Nonqualified deferred compensation assets	8,778		—		8,778		—
Derivative assets	48,918		—		48,918		—
Total	$	2,726,671	$	—	$	2,635,069	$	91,602
Derivative liabilities	$	40,500	$	—	$	40,500	$	—

	December 31, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	381,805	$	—	$	381,805	$	—
U.S. Government agencies	668,316		—		668,316		—
Municipal	238,529		—		179,576		58,953
Corporate notes	133,579		—		133,579		—
Mortgage-backed	318,710		—		318,710		—
Equity securities	51,139		—		27,428		23,711
Trading account securities	1,206		—		1,206		—
Mortgage loans held-for-sale	351,290		—		351,290		—
Mortgage servicing rights	8,435		—		—		8,435
Nonqualified deferred compensation assets	7,951		—		7,951		—
Derivative assets	47,964		—		47,964		—
Total	$	2,208,924	$	—	$	2,117,825	$	91,099
Derivative liabilities	$	41,180	$	—	$	41,180	$	—

	June 30, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	388,415	$	—	$	388,415	$	—
U.S. Government agencies	766,000		—		766,000		—
Municipal	176,107		—		138,054		38,053
Corporate notes	135,303		—		135,303		—
Mortgage-backed	303,563		—		303,563		—
Equity securities	54,852		—		30,700		24,152
Trading account securities	2,234		—		2,234		—
Mortgage loans held-for-sale	363,627		—		363,627		—
Mortgage servicing rights	8,227		—		—		8,227
Nonqualified deferred compensation assets	7,850		—		7,850		—
Derivative assets	50,967		—		50,967		—
Total	$	2,257,145	$	—	$	2,186,713	$	70,432
Derivative liabilities	$	43,650	$	—	$	43,650	$	—

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The aggregate remaining contractual principal balance outstanding as of June 30, 2015, December 31, 2014 and June 30, 2014 for mortgage loans held-for-sale measured at fair value under ASC 825 was $475.9 million, $327.1 million and $340.5 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $497.3 million, $351.3 million and $363.6 million, for the same respective periods, as shown in the above tables. There were no nonaccrual loans or loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio measured at fair value as of June 30, 2015, December 31, 2014 and June 30, 2014.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2015 and 2014 are summarized as follows:

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852
Total net gains (losses) included in:
Net income (1)	—			—		182
Other comprehensive income	(713		)	340		—
Purchases	4,175			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(939		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net gains (losses) included in:
Net income (1)	—			—		(401		)
Other comprehensive income	(510		)	1,285		—
Purchases	10,849			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(10,720		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2014	$	39,772		$	23,438	$	8,719
Total net gains (losses) included in:
Net income (1)	—			—		(492		)
Other comprehensive income	73			714		—
Purchases	1,606			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,398		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

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				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2014	$	36,386		$	22,163	$	8,946
Total net gains (losses) included in:
Net income (1)	—			—		(719		)
Other comprehensive income	220			1,989		—
Purchases	4,966			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

Also, the Company may be required, from time to time, to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets. For assets measured at fair value on a nonrecurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at June 30, 2015.

	June 30, 2015								Three Months Ended June 30, 2015 Fair Value Losses Recognized, net		Six Months Ended June 30, 2014 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	61,713	$	—	$	—	$	61,713	$	3,524	$	6,255
Other real estate owned, including covered other real estate owned (1)	77,499		—		—		77,499		1,483		3,845
Total	$	139,212	$	—	$	—	$	139,212	$	5,007	$	10,100

(1) Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

Impaired loans—A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. A loan restructured in a troubled debt restructuring is an impaired loan according to applicable accounting guidance. Impairment is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the fair value of the underlying collateral. Impaired loans are considered a fair value measurement where an allowance is established based on the fair value of collateral. Appraised values, which may require adjustments to market-based valuation inputs, are generally used on real estate collateral-dependent impaired loans.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 measurements of impaired loans. For more information on the Managed Assets Division review of impaired loans refer to Note 7 – Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans. At June 30, 2015, the Company had $103.4 million of impaired loans classified as Level 3. Of the $103.4 million of impaired loans, $61.7 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $41.7 million were valued based on discounted cash flows in accordance with ASC 310.

Other real estate owned (including covered other real estate owned)—Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans and is included in other assets. Other real estate owned is recorded at its estimated fair value less estimated selling costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the allowance for loan losses. Subsequent changes in value are reported as adjustments to the carrying amount and are recorded in other non-interest expense. Gains and losses upon sale, if any, are also charged to other non-interest expense. Fair value is generally based on third party appraisals and internal estimates and is therefore considered a Level 3 valuation.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 measurements for non-covered other real estate owned and covered other real estate owned. At June 30, 2015, the Company had $77.5 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the valuation adjustment determined

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by the Company’s appraisals. The valuation adjustments applied to other real estate owned range from an 87% write-up to a 85% write-down of the carrying value at June 30, 2015, with a weighted average write-down adjustment of 3.58%. A higher appraisal valuation results in an increased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at June 30, 2015 were as follows:

(Dollars in thousands)
	Fair Value		Valuation Methodology	Significant Unobservable Input	Range of Inputs	Weighted Average of Inputs	Impact to valuation from an increased or higher input value
Measured at fair value on a recurring basis:
Municipal Securities	$	58,572	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,996		Discounted cash flows	Discount rate	1.77%-2.02%	1.86%	Decrease
Mortgage Servicing Rights	8,034		Discounted cash flows	Discount rate	9%-13%	9.15%	Decrease
				Constant prepayment rate (CPR)	10%-25%	11.83%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	61,713	Appraisal value	N/A	N/A	N/A	N/A
Other real estate owned, including covered other real estate owned	77,499		Appraisal value	Property specific valuation adjustment	(85)%-87%	(3.58)%	Increase

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The Company is required under applicable accounting guidance to report the fair value of all financial instruments on the consolidated statements of condition, including those financial instruments carried at cost. The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

	At June 30, 2015				At December 31, 2014				At June 30, 2014
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	252,209	$	252,209	$	230,707	$	230,707	$	356,978	$	356,978
Interest bearing deposits with banks	591,721		591,721		998,437		998,437		506,871		506,871
Available-for-sale securities	2,162,061		2,162,061		1,792,078		1,792,078		1,824,240		1,824,240
Trading account securities	1,597		1,597		1,206		1,206		2,234		2,234
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	89,818		89,818		91,582		91,582		84,531		84,531
Brokerage customer receivables	29,753		29,753		24,221		24,221		28,199		28,199
Mortgage loans held-for-sale, at fair value	497,283		497,283		351,290		351,290		363,627		363,627
Total loans	15,707,060		16,469,518		14,636,107		15,346,266		14,025,150		14,741,579
Mortgage servicing rights	8,034		8,034		8,435		8,435		8,227		8,227
Nonqualified deferred compensation assets	8,778		8,778		7,951		7,951		7,850		7,850
Derivative assets	48,918		48,918		47,964		47,964		50,967		50,967
FDIC indemnification asset	3,429		3,429		11,846		11,846		46,115		46,115
Accrued interest receivable and other	178,349		178,349		169,156		169,156		165,511		165,511
Total financial assets	$	19,579,010	$	20,341,468	$	18,370,980	$	19,081,139	$	17,470,500	$	18,186,929
Financial Liabilities
Non-maturity deposits	$	13,145,542	$	13,145,542	$	12,142,034	$	12,142,034	$	11,314,162	$	11,314,162
Deposits with stated maturities	3,936,876		3,937,146		4,139,810		4,143,161		4,242,214		4,255,896
Federal Home Loan Bank advances	444,017		448,870		733,050		738,113		580,582		585,792
Other borrowings	261,908		261,908		196,465		197,883		43,716		43,716
Subordinated notes	140,000		142,810		140,000		143,639		140,000		144,899
Junior subordinated debentures	249,493		250,265		249,493		250,305		249,493		250,492
Derivative liabilities	40,500		40,500		41,180		41,180		43,650		43,650
Accrued interest payable	6,827		6,827		8,001		8,001		8,399		8,399
Total financial liabilities	$	18,225,163	$	18,233,868	$	17,650,033	$	17,664,316	$	16,622,216	$	16,647,006

Not all the financial instruments listed in the table above are subject to the disclosure provisions of ASC Topic 820, as certain assets and liabilities result in their carrying value approximating fair value. These include cash and cash equivalents, interest bearing deposits with banks, brokerage customer receivables, FHLB and FRB stock, FDIC indemnification asset, accrued interest receivable and accrued interest payable and non-maturity deposits.

The following methods and assumptions were used by the Company in estimating fair values of financial instruments that were not previously disclosed.

Loans. Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are analyzed by type such as commercial, residential real estate, etc. Each category is further segmented by interest rate type (fixed and variable) and term. For variable-rate loans that reprice frequently, estimated fair values are based on carrying values. The fair value of residential loans is based on secondary market sources for securities backed by similar loans, adjusted for differences in loan characteristics. The fair value for other fixed rate loans is estimated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect credit and interest rate risks inherent in the loan. The primary impact of credit risk on the present value of the loan portfolio, however, was assessed through the use of the allowance for loan losses, which is believed to represent the current fair value of probable incurred losses for purposes of the fair value calculation. In accordance with ASC 820, the Company has categorized loans as a Level 3 fair value measurement.

Deposits with stated maturities. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently in effect for deposits of similar remaining maturities. In accordance with ASC 820, the Company has categorized deposits with stated maturities as a Level 3 fair value measurement.

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Federal Home Loan Bank advances. The fair value of Federal Home Loan Bank advances is obtained from the Federal Home Loan Bank which uses a discounted cash flow analysis based on current market rates of similar maturity debt securities to discount cash flows. In accordance with ASC 820, the Company has categorized Federal Home Loan Bank advances as a Level 3 fair value measurement.

Subordinated notes. The fair value of the subordinated notes is based on a market price obtained from an independent pricing vendor. In accordance with ASC 820, the Company has categorized subordinated notes as a Level 2 fair value measurement.

Junior subordinated debentures. The fair value of the junior subordinated debentures is based on the discounted value of contractual cash flows. In accordance with ASC 820, the Company has categorized junior subordinated debentures as a Level 3 fair value measurement.

(15) Stock-Based Compensation Plans

In January 2007, the Company's shareholders approved the 2007 Stock Incentive Plan (“the 2007 Plan”) which initially provided for the issuance of up to 500,000 shares of common stock. In May 2009 and May 2011, the Company's shareholders approved an additional 325,000 shares and 2,860,000 shares, respectively, of common stock that may be offered under the 2007 Plan. The 2007 Plan replaced the Wintrust Financial Corporation 1997 Stock Incentive Plan (“the 1997 Plan”) which had substantially similar terms. In May 2015, the Company’s shareholders approved the 2015 Stock Incentive Plan (“the 2015 Plan”), which replaced the 2007 Plan. The 2015 Plan, the 2007 Plan and the 1997 Plan are collectively referred to as “the Plans.” Under the 2015 Plan 5,485,000 shares of common stock are available for awards. Outstanding awards under the Plans for which common shares are not issued by reason of cancellation, forfeiture, lapse of such award or settlement of such award in cash, are again available under the 2015 Plan. All grants made after the approval of the 2015 Plan will be made pursuant to the 2015 Plan. The Plans cover substantially all employees of Wintrust. The Compensation Committee of the Board of Directors administers all stock-based compensation programs and authorizes all awards granted pursuant to the Plans.

The Plans permit the grant of incentive stock options, nonqualified stock options, stock appreciation rights, stock awards, restricted share or unit awards, performance awards settled in shares of common stock and other incentive awards based in whole or in part by reference to the Company’s common stock. The Company historically awarded stock-based compensation in the form of time-vested nonqualified stock options and time-vested restricted share unit awards (“restricted shares”). The grants of options provide for the purchase shares of Wintrust's common stock at the fair market value of the stock on the date the options are granted. Stock options under the 2015 Plan and the 2007 Plan generally vest ratably over periods of three to five years and have a maximum term of seven years from the date of grant. Stock options granted under the 1997 Plan provided for a maximum term of 10 years. Restricted shares entitle the holders to receive, at no cost, shares of the Company’s common stock. Restricted shares generally vest over periods of one to five years from the date of grant.

Beginning in 2011, the Company has awarded annual grants under the Long-Term Incentive Program (“LTIP”), which is administered under the Plans. The LTIP is designed in part to align the interests of management with the interests of shareholders, foster retention, create a long-term focus based on sustainable results and provide participants a target long-term incentive opportunity. It is anticipated that LTIP awards will continue to be granted annually. LTIP grants to date have consisted of time-vested nonqualified stock options and performance-based stock and cash awards. Performance-based stock and cash awards granted under the LTIP are contingent upon the achievement of pre-established long-term performance goals set in advance by the Compensation Committee over a three-year period starting at the beginning of each calendar year. These performance awards are granted at a target level, and based on the Company’s achievement of the pre-established long-term goals, the actual payouts can range from 0% to a maximum of 150% (for 2015 awards) or 200% (for prior awards) of the target award. The awards vest in the quarter after the end of the performance period upon certification of the payout by the Compensation Committee of the Board of Directors.

Holders of restricted share awards and performance-based stock awards received under the Plans are not entitled to vote or receive cash dividends (or cash payments equal to the cash dividends) on the underlying common shares until the awards are vested. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company.

Stock-based compensation is measured as the fair value of an award on the date of grant, and the measured cost is recognized over the period which the recipient is required to provide service in exchange for the award. The fair values of restricted share and performance-based stock awards are determined based on the average of the high and low trading prices on the grant date, and the fair value of stock options is estimated using a Black-Scholes option-pricing model that utilizes the assumptions outlined in the following table. Option-pricing models require the input of highly subjective assumptions and are sensitive to changes in the option's expected life and the price volatility of the underlying stock, which can materially affect the fair value estimate. Expected life of options granted since the inception of the LTIP awards has been based on the safe harbor rule of the SEC Staff Accounting

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Bulletin No. 107 “Share-Based Payment” as the Company believes historical exercise data may not provide a reasonable basis to estimate the expected term of these options. Expected stock price volatility is based on historical volatility of the Company's common stock, which correlates with the expected life of the options, and the risk-free interest rate is based on comparable U.S. Treasury rates. Management reviews and adjusts the assumptions used to calculate the fair value of an option on a periodic basis to better reflect expected trends.

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month periods ending June 30, 2015 and 2014.

	Six Months Ended
	June 30,		June 30,
	2015		2014
Expected dividend yield	0.9	%	0.4	%
Expected volatility	26.5	%	30.8	%
Risk-free rate	1.3	%	0.7	%
Expected option life (in years)	4.5		4.5

Stock based compensation is recognized based upon the number of awards that are ultimately expected to vest, taking into account expected forfeitures. In addition, for performance-based awards, an estimate is made of the number of shares expected to vest as a result of projected performance against the performance criteria in the award to determine the amount of compensation expense to recognize. The estimate is reevaluated periodically and total compensation expense is adjusted for any change in estimate in the current period. Stock-based compensation expense recognized in the Consolidated Statements of Income was $3.0 million in the second quarter of 2015 and $2.1 million in the second quarter of 2014, and $5.3 million and $5.9 million for the year-to-date periods, respectively. The first quarter of 2014 includes a $2.1 million charge for a modification to the performance measurement criteria related to the 2011 LTIP performance-based stock grants that were vested and paid out in the first quarter of 2014. The cost of the modification was determined based on the stock price on the date of re-measurement and paid to the holders of the performance-based stock awards in cash.

A summary of the Company's stock option activity for the six months ended June 30, 2015 and June 30, 2014 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2015	1,618,426		$	43.00
Conversion of options of acquired company	16,364		21.18
Granted	493,690		44.17
Exercised	(108,042	)	33.70
Forfeited or canceled	(219,356	)	53.47
Outstanding at June 30, 2015	1,801,082		$	42.40	4.4	$	20,012
Exercisable at June 30, 2015	916,168		$	40.62	2.9	$	11,928

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2014	1,524,672		$	42.00
Granted	364,767		46.85
Exercised	(88,141	)	34.66
Forfeited or canceled	(43,617	)	45.56
Outstanding at June 30, 2014	1,757,681		$	43.29	3.5	$	9,833
Exercisable at June 30, 2014	1,143,629		$	43.98	2.2	$	7,066

(1) Represents the remaining weighted average contractual life in years.

(2) Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company's stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company's stock.

The weighted average grant date fair value per share of options granted during the six months ended June 30, 2015 and June 30, 2014 was $9.69 and $11.96, respectively. The aggregate intrinsic value of options exercised during the six months ended June 30, 2015 and 2014, was $1.6 million and $1.0 million, respectively.

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A summary of the Plans' restricted share activity for the six months endedJune 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	146,112		$	47.45	181,522		$	43.39
Granted	14,907		45.35		11,430		46.10
Vested and issued	(14,015	)	38.78		(32,328	)	34.57
Forfeited	—		—		(5,387	)	36.89
Outstanding at June 30	147,004		$	48.07	155,237		$	45.65
Vested, but not issuable at June 30	85,000		$	51.88	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	295,679		$	38.18	307,512		$	34.01
Granted	104,191		44.17		93,123		46.85
Vested and issued	(78,590	)	31.10		(15,944	)	33.28
Forfeited	(33,522	)	32.62		(87,046	)	33.64
Outstanding at June 30	287,758		$	42.93	297,645		$	38.18

The Company issues new shares to satisfy its obligation to issue shares granted pursuant to the Plans.

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(16) Shareholders’ Equity and Earnings Per Share

Series D Preferred Stock

In June 2015, the Company issued and sold 5,000,000 shares of fixed-to-floating non-cumulative perpetual preferred stock, Series D, liquidation preference $25 per share (the “Series D Preferred Stock”) for $125.0 million in an equity offering. If declared, dividends on the Series D Preferred Stock are payable quarterly in arrears at a fixed rate of 6.50% per annum from the original issuance date to, but excluding, July 15, 2025, and from (and including) that date at a floating rate equal to three-month LIBOR plus a spread of 4.06% per annum.

Series C Preferred Stock

In March 2012, the Company issued and sold 126,500 shares of non-cumulative perpetual convertible preferred stock, Series C, liquidation preference $1,000 per share (the “Series C Preferred Stock”) for $126.5 million in an equity offering. If declared, dividends on the Series C Preferred Stock are payable quarterly in arrears at a rate of 5.00% per annum. The Series C Preferred Stock is convertible into common stock at the option of the holder at a conversion rate of 24.3132 shares of common stock per share of Series C Preferred Stock subject to customary anti-dilution adjustments. In the first six months of 2015, pursuant to such terms, 155 shares of the Series C Preferred Stock were converted at the option of the respective holders into 3,767 shares of the Company's common stock. In 2014, 10 shares of the Series C Preferred Stock were converted at the option of the respective holders into 244 shares of the Company's common stock. On and after April 15, 2017, the Company will have the right under certain circumstances to cause the Series C Preferred Stock to be converted into common stock if the closing price of the Company’s common stock exceeds a certain amount.

Common Stock Warrant

Pursuant to the U.S. Department of the Treasury’s (the “U.S. Treasury”) Capital Purchase Program, on December 19, 2008, the Company issued to the U.S. Treasury a warrant to exercise 1,643,295 warrant shares of Wintrust common stock at a per share exercise price of $22.82, subject to customary anti-dilution adjustments, and with a term of 10 years. In February 2011, the U.S. Treasury sold all of its interest in the warrant issued to it in a secondary underwritten public offering. During the first six months of 2015, certain holders of the interest in the warrant exercised 380,349 warrant shares at the exercise price, which resulted in 203,887 shares of common stock issued. At June 30, 2015, all remaining holders of the interest in the warrant are able to exercise 557,068 warrant shares.

Other

In January 2015, the Company issued 422,121 shares of its common stock in the acquisition of Delavan.

At the January 2015 Board of Directors meeting, a quarterly cash dividend of $0.11 per share ($0.44 on an annualized basis) was

declared. It was paid on February 19, 2015 to shareholders of record as of February 5, 2015. At the April 2015 Board of Directors meeting, a quarterly cash dividend of $0.11 per share ($0.44 on an annualized basis) was declared. It was paid on May 21, 2015 to shareholders of record as of May 7, 2015.

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Accumulated Other Comprehensive Income (Loss)

The following tables summarize the components of other comprehensive income (loss), including the related income tax effects, and the related amount reclassified to net income for the periods presented (in thousands).

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)
Other comprehensive (loss) income during the period, net of tax, before reclassifications	(32,441		)	(147		)	1,516			(31,072		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	14			278			—			292
Net other comprehensive (loss) income during the period, net of tax	$	(32,427	)	$	131		$	1,516		$	(30,780	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive loss during the period, net of tax, before reclassifications	(16,496		)	(740		)	(7,529		)	(24,765		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(304		)	530			—			226
Net other comprehensive loss during the period, net of tax	$	(16,800	)	$	(210	)	$	(7,529	)	$	(24,539	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at April 1, 2014	$	(39,923	)	$	(2,521	)	$	(14,309	)	$	(56,753	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,717			(691		)	6,707			21,733
Amount reclassified from accumulated other comprehensive income (loss), net of tax	203			314			—			517
Net other comprehensive income (loss) during the period, net of tax	$	15,920		$	(377	)	$	6,707		$	22,250
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)
Balance at January 1, 2014	$	(53,665	)	$	(2,462	)	$	(6,909	)	$	(63,036	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	29,439			(1,047		)	(693		)	27,699
Amount reclassified from accumulated other comprehensive income (loss), net of tax	223			611			—			834
Net other comprehensive income (loss) during the period, net of tax	$	29,662		$	(436	)	$	(693	)	$	28,533
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)

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	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2015			2014			2015			2014
Accumulated unrealized losses on securities
(Losses) gains included in net income	$	(24	)	$	(336	)	$	500		$	(369	)	(Losses) gains on available-for-sale securities, net
	(24		)	(336		)	500			(369		)	Income before taxes
Tax effect	$	10		$	133		$	(196	)	$	146		Income tax expense
Net of tax	$	(14	)	$	(203	)	$	304		$	(223	)	Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on junior subordinated debentures	$	457		$	521		$	871		$	1,014		Interest on junior subordinated debentures
	(457		)	(521		)	(871		)	(1,014		)	Income before taxes
Tax effect	$	179		$	207		$	341		$	403		Income tax expense
Net of tax	$	(278	)	$	(314	)	$	(530	)	$	(611	)	Net income

Earnings per Share

The following table shows the computation of basic and diluted earnings per share for the periods indicated:

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2015		June 30, 2014		June 30, 2015		June 30, 2015
Net income		$	43,831	$	38,541	$	82,883	$	73,041
Less: Preferred stock dividends and discount accretion		1,580		1,581		3,161		3,162
Net income applicable to common shares—Basic	(A)	42,251		36,960		79,722		69,879
Add: Dividends on convertible preferred stock, if dilutive		1,580		1,581		3,161		3,162
Net income applicable to common shares—Diluted	(B)	43,831		38,541		82,883		73,041
Weighted average common shares outstanding	(C)	47,567		46,520		47,404		46,358
Effect of dilutive potential common shares
Common stock equivalents		1,085		1,327		1,149		1,381
Convertible preferred stock, if dilutive		3,071		3,075		3,071		3,075
Total dilutive potential common shares		4,156		4,402		4,220		4,456
Weighted average common shares and effect of dilutive potential common shares	(D)	51,723		50,922		51,624		50,814
Net income per common share:
Basic	(A/C)	$	0.89	$	0.79	$	1.68	$	1.51
Diluted	(B/D)	$	0.85	$	0.76	$	1.61	$	1.44

Potentially dilutive common shares can result from stock options, restricted stock unit awards, stock warrants, the Company’s convertible preferred stock and shares to be issued under the Employee Stock Purchase Plan and the Directors Deferred Fee and Stock Plan, being treated as if they had been either exercised or issued, computed by application of the treasury stock method. While potentially dilutive common shares are typically included in the computation of diluted earnings per share, potentially dilutive common shares are excluded from this computation in periods in which the effect would reduce the loss per share or increase the income per share. For diluted earnings per share, net income applicable to common shares can be affected by the conversion of the Company’s convertible preferred stock. Where the effect of this conversion would reduce the loss per share or increase the income per share, net income applicable to common shares is not adjusted by the associated preferred dividends.

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(17) Subsequent Events

On July 24, 2015, the Company acquired Community Financial Shares, Inc. ("CFIS"). CFIS was the parent company of Community Bank - Wheaton/Glen Ellyn ("CBWGE"), which had four banking locations in Wheaton and Glen Ellyn, Illinois. CBWGE was merged into the Company's wholly-owned subsidiary Wheaton Bank. Prior to purchase accounting adjustments, the Company acquired approximately $327 million of assets, including approximately $177 million of loans, assumed approximately $301 million of deposits and assumed approximately $4 million of junior subordinated debentures.

On July 17, 2015, the Company acquired Suburban Illinois Bancorp, Inc. ("Suburban"). Suburban was the parent company of Suburban Bank & Trust Company ("SBT"), which had ten banking locations in Chicago and its suburbs. SBT was merged into the Company's wholly-owned subsidiary Hinsdale Bank. Prior to purchase accounting adjustments, the Company acquired approximately $480 million of assets, including approximately $284 million of loans, assumed approximately $417 million of deposits and assumed approximately $15 million of junior subordinated debentures.

On July 1, 2015, the Company, through its wholly-owned subsidiary Wintrust Bank, acquired North Bank, headquartered in downtown Chicago, Illinois. Through this transaction, prior to purchase accounting adjustments, Wintrust Bank acquired two banking locations and approximately $112 million of assets, including approximately $55 million of loans, and assumed approximately $100 million of deposits.

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ITEM 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of financial condition as of June 30, 2015 compared with December 31, 2014 and June 30, 2014, and the results of operations for the three and six month periods ended June 30, 2015 and 2014, should be read in conjunction with the unaudited consolidated financial statements and notes contained in this report and the risk factors discussed herein and under Item 1A of the Company’s 2014 Annual Report on Form 10-K. This discussion contains forward-looking statements that involve risks and uncertainties and, as such, future results could differ significantly from management’s current expectations. See the last section of this discussion for further information on forward-looking statements.

Introduction

Wintrust is a financial holding company that provides traditional community banking services, primarily in the Chicago metropolitan area and southern Wisconsin, and operates other financing businesses on a national basis and in Canada through several non-bank subsidiaries. Additionally, Wintrust offers a full array of wealth management services primarily to customers in the Chicago metropolitan area and southern Wisconsin.

Overview

Second Quarter Highlights

The Company recorded net income of $43.8 million for the second quarter of 2015 compared to $38.5 million in the second quarter of 2014. The results for the second quarter of 2015 demonstrate continued operating strengths including strong loan growth, increased mortgage banking revenue due to higher origination volumes from activity during the traditional spring purchase market, and improved credit quality metrics. Additionally, in the second quarter of 2015, the Company issued $125 million of non-cumulative perpetual preferred stock.

The Company increased its loan portfolio, excluding covered loans and mortgage loans held-for-sale, from $13.7 billion at June 30, 2014 and $14.4 billion at December 31, 2014 to $15.5 billion at June 30, 2015. The increase in the current quarter compared to the prior quarters was primarily a result of the Company’s commercial banking initiative, growth in the commercial real estate and life insurance premium finance receivables portfolios and acquisitions during the period. The Company is focused on making new loans, including in the commercial and commercial real estate sector, where opportunities that meet our underwriting standards exist. For more information regarding changes in the Company’s loan portfolio, see “Financial Condition – Interest Earning Assets” and Note 6 “Loans” of the Financial Statements presented under Item 1 of this report.

Management considers the maintenance of adequate liquidity to be important to the management of risk. During the second quarter of 2015, the Company continued its practice of maintaining appropriate funding capacity to provide the Company with adequate liquidity for its ongoing operations. In this regard, the Company benefited from its strong deposit base, a liquid short-term investment portfolio and its access to funding from a variety of external funding sources including the issuance of Series D preferred stock in the second quarter of 2015. At June 30, 2015, the Company had approximately $843.9 million in overnight liquid funds and interest-bearing deposits with banks.

The Company recorded net interest income of $156.9 million in the second quarter of 2015 compared to $149.2 million in the second quarter of 2014. The higher level of net interest income recorded in the second quarter of 2015 compared to the second quarter of 2014 resulted primarily from a $1.9 billion increase in the balance of average loans, excluding covered loans. The increase in average loans, excluding covered loans, was partially offset by a 22 basis point decline in the yield on earnings assets and a $889.7 million increase in interest bearing liabilities resulting from an increase in interest bearing deposits, the issuance of subordinated notes at the end of the second quarter of 2014 and the completion of the Canadian secured borrowing transaction at the end of the fourth quarter of 2014.

Non-interest income totaled $77.0 million in the second quarter of 2015 an increase of $22.9 million, or 42%, compared to the second quarter of 2014. The increase in the second quarter of 2015 compared to the second quarter of 2014 was primarily attributable to an increase in mortgage banking revenues, fees from covered call options and the recognition of a $1.5 million BOLI death benefit. Mortgage banking revenue increased $12.2 million when compared to the second quarter of 2014. The increase in mortgage banking revenue in the current quarter as compared to the second quarter of 2014 resulted primarily from a favorable mortgage banking environment in the current quarter. Mortgage loans originated or purchased to be sold to the secondary market were $1.2

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billion in the second quarter of 2015 compared to $840.9 million in the second quarter of 2014 (see “-Non-Interest Income” for further detail).

Non-interest expense totaled $154.3 million in the second quarter of 2015, increasing $20.7 million, or 15%, compared to the second quarter of 2014. The increase compared to the second quarter of 2014 was primarily attributable to higher salary and employee benefit costs, increased occupancy, data processing and professional fees, and higher marketing expenses, partially offset by a decrease in OREO expenses (see “-Non-Interest Expense” for further detail).

The Current Economic Environment

The economic environment in the second quarter of 2015 was characterized by continued low interest rates and renewed competition as banks have experienced improvements in their financial condition allowing them to be more active in the lending market. The Company has employed certain strategies to manage net income in the current rate environment, including those discussed below.

Net Interest Income

The Company has leveraged its internal loan pipeline and external growth opportunities to grow its earning assets base. The Company has also continued its efforts to shift a greater portion of its deposit base to non-interest bearing deposits. These deposits as a percentage of total deposits were 23% as of June 30, 2015 as compared to 20% as of June 30, 2014. In the current quarter, the Company's net interest margin declined to 3.41% as compared to 3.62% in the second quarter of 2014 primarily as a result of a reduction in loan yields, run-off of the covered loan portfolio and the completion of the Canadian secured borrowing transaction at the end of the fourth quarter of 2014. However, as a result of the growth in earnings assets and improvement in funding mix, the Company increased net interest income by $7.7 million in the second quarter of 2015 compared to the second quarter of 2014.

The Company has continued its practice of writing call options against certain U.S. Treasury and Agency securities to economically hedge the securities positions and receive fee income to compensate for net interest margin compression. In the second quarter of 2015, the Company recognized $4.6 million in fees on covered call options.

The Company utilizes “back to back” interest rate derivative transactions, primarily interest rate swaps, to receive floating rate interest payments related to customer loans. In these arrangements, the Company makes a floating rate loan to a borrower who prefers to pay a fixed rate. To accommodate the risk management strategy of certain qualified borrowers, the Company enters a swap with its borrower to effectively convert the borrower's variable rate loan to a fixed rate. However, in order to minimize the Company's exposure on these transactions and continue to receive a floating rate, the Company simultaneously executes an offsetting mirror-image derivative with a third party.

Non-Interest Income

In preparation for a rising rate environment, the Company has purchased interest rate cap contracts to offset the negative impact on the net interest margin in a rising rate environment caused by the repricing of variable rate liabilities and lack of repricing of fixed rate loans and securities. As of June 30, 2015, the Company held four interest rate cap derivatives with a total notional value of $446.5 million which are not designated as accounting hedges but are considered to be an economic hedge for the potential rise in interest rates. Because these are not accounting hedges, fluctuations in the cap values are recorded in earnings. In the second quarter of 2015, the Company recognized $153,000 in trading losses related to the mark to market of these interest rate caps. For more information, see Note 13 "Derivatives" of the Financial Statements presented under Item 1 of this report.

The current interest rate environment impacts the profitability and mix of the Company's mortgage banking business which generated revenues of $36.0 million in the second quarter of 2015 and $23.8 million in the second quarter of 2014, representing 15% of total net revenue for the second quarter of 2015 and 12% for the second quarter of 2014. Mortgage banking revenue is primarily comprised of gains on sales of mortgage loans originated for new home purchases as well as mortgage refinancing. Mortgage banking revenue is partially offset by corresponding commission and overhead costs. In the second quarter of 2015, approximately 62% of originations were mortgages associated with new home purchases while 38% of originations were related to refinancing of mortgages. Assuming the housing market continues to improve and interest rates rise, we expect a higher percentage of originations to be attributed to new home purchases.

Non-Interest Expense

Management believes expense management is important amid the low interest rate environment and increased competition to enhance profitability. Cost control and an efficient infrastructure should position the Company appropriately as it continues its growth strategy. Management continues to be disciplined in its approach to growth and will leverage the Company's existing

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expense infrastructure to expand its presence in existing and complimentary markets. Management believes that its recent acquisitions have provided operating capacity for balance sheet growth without a commensurate increase in operating expenses which should provide improvement in its overhead ratio, holding all else equal.

Potentially impacting the cost control strategies discussed above, the Company anticipates increased costs resulting from the changing regulatory environment in which we operate. We have already experienced increases in compliance-related costs and we expect that compliance with the Dodd-Frank Act and its implementing regulations will require us to invest significant additional management attention and resources.

Credit Quality

The Company’s credit quality metrics remained relatively stable in the second quarter of 2015 compared to the quarter-ended December 31, 2014 and showed improvement compared to the quarter ended June 30, 2014. The Company continues to address non-performing assets and remains disciplined in its approach to growth without sacrificing asset quality. Management primarily reviews credit quality excluding covered loans as those loans are obtained through FDIC-assisted acquisitions and therefore potential credit losses are subject to indemnification by the FDIC.

In particular:

• The Company’s provision for credit losses, excluding covered loans, in the second quarter of 2015 totaled $9.7 million, an increase of $2.9 million when compared to the second quarter of 2014. Net charge-offs decreased to $3.9 million in the second quarter of 2015 (which included a $968,000 net recovery related to commercial real estate loans) compared to $6.6 million for the same period in 2014 (of which $2.0 million related to commercial real estate loans).

• The Company’s allowance for loan losses, excluding covered loans, totaled $100.2 million at June 30, 2015, reflecting an increase of $8.0 million, or 9%, when compared to the same period in 2014 and an increase of $8.5 million, or 19% annualized, when compared to December 31, 2014. At June 30, 2015, approximately $42.2 million, or 42%, of the allowance for loan losses, excluding covered loans, was associated with commercial real estate loans and another $32.9 million, or 33%, was associated with commercial loans.

• The Company has significant exposure to commercial real estate. At June 30, 2015, $4.9 billion, or 31%, of our loan portfolio, excluding covered loans, was commercial real estate, with approximately 92% located in our market area. As of June 30, 2015, the commercial real estate loan portfolio, excluding PCI loans, was comprised of $395.0 million related to land, residential and commercial construction, $754.8 million related to office buildings, $750.0 million related to retail, $627.4 million related to industrial use, $668.4 million related to multi-family and $1.6 billion related to mixed use and other use types. In analyzing the commercial real estate market, the Company does not rely upon the assessment of broad market statistical data, in large part because the Company’s market area is diverse and covers many communities, each of which is impacted differently by economic forces affecting the Company’s general market area. As such, the extent of changes in real estate valuations can vary meaningfully among the different types of commercial and other real estate loans made by the Company. The Company uses its multi-chartered structure and local management knowledge to analyze and manage the local market conditions at each of its banks. As of June 30, 2015, the Company had approximately $23.9 million of non-performing commercial real estate loans representing approximately 0.5% of the total commercial real estate loan portfolio.

• Total non-performing loans (loans on non-accrual status and loans more than 90 days past due and still accruing interest), excluding covered loans, was $76.6 million (of which $23.9 million, or 31%, was related to commercial real estate) at June 30, 2015, a decrease of approximately $2.1 million compared to December 31, 2014 and a decrease of $12.1 million compared to June 30, 2014. Non-performing loans decreased compared to the prior year quarter due to the continued reduction in existing non-performing loans through the efforts of our credit workout teams.

• The Company’s other real estate owned, excluding covered other real estate owned, decreased to $42.1 million during the second quarter of 2015, compared to $45.6 million at December 31, 2014 and $59.6 million at June 30, 2014. The $42.1 million of other real estate owned as of June 30, 2015 was comprised of $3.0 million of residential real estate development property, $32.6 million of commercial real estate property and $6.4 million of residential real estate property.

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During the quarter, Management continued its efforts to resolve problem loans through liquidation rather than retention of loans or real estate acquired as collateral through the foreclosure process. For more information regarding these efforts, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation—Overview and Strategy” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

In addition, during the second quarter of 2015, the Company restructured $1.3 million of certain loans in TDRs, by providing economic concessions to borrowers to better align the terms of their loans with their current ability to pay. At June 30, 2015, approximately $62.8 million in loans had terms modified in TDRs, with $52.2 million of these TDRs in accruing status (see “-Loan Portfolio and Asset Quality” for further detail).

The Company enters into residential mortgage loan sale agreements with investors in the normal course of business. The Company’s practice is generally not to retain long-term fixed rate mortgages on its balance sheet in order to mitigate interest rate risk, and consequently sells most of such mortgages into the secondary market. These agreements provide recourse to investors through certain representations concerning credit information, loan documentation, collateral and insurability. Investors request the Company to indemnify them against losses on certain loans or to repurchase loans which the investors believe do not comply with applicable representations. An increase in requests for loss indemnification can negatively impact mortgage banking revenue as additional recourse expense. The liability for estimated losses on repurchase and indemnification claims for residential mortgage loans previously sold to investors was $4.0 million at June 30, 2015 compared to $3.1 million at December 31, 2014 and $2.9 million at June 30, 2014. For more information regarding requests for indemnification on loans sold, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation—Overview and Strategy” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Trends in Our Three Operating Segments During the Second Quarter

Community Banking

Net interest income. Net interest income for the community banking segment totaled $127.0 million for the second quarter of 2015. Net interest income has increased steadily in recent quarters primarily due to growth in earning assets. The earning asset growth has occurred as a result of the Company's commercial banking initiative as well as franchise expansion through acquisitions.

Funding mix and related costs. Community banking profitability has been bolstered in recent quarters as the Company funded strong loan growth with a more desirable blend of funds. Additionally, non-interest bearing deposits have grown as a result of the Company’s commercial banking initiative and fixed term certificates of deposit have been running off and renewing at lower rates.

Level of non-performing loans and other real estate owned. The Company's credit quality measures have improved in recent quarters. The level of non-performing loans and other real estate owned has declined as the Company remains committed to the timely resolution of non-performing assets.

Mortgage banking revenue. Mortgage banking revenue increased in the current quarter as compared to the previous quarter primarily as a result of higher origination volumes as purchase originations were supplemented by increased refinance activity. Management expects new home purchase originations to remain strong as the housing market improves.

For more information regarding our community banking business, please see “Overview and Strategy—Community Banking” under “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Specialty Finance

Financing of Commercial Insurance Premiums. First Insurance Funding Corporation ("FIFC") and First Insurance Funding of Canada, Inc. ("FIFC Canada") originated approximately $1.5 billion of commercial insurance premium finance loans in the second quarter of 2015, relatively unchanged as compared to $1.4 billion in the first quarter of 2015 and the second quarter of 2014.

Financing of Life Insurance Premiums. FIFC originated approximately $221.7 million in life insurance premium finance loans in the second quarter of 2015 compared to $167.6 million in the first quarter of 2015, and $162.0 million in the second quarter of 2014. The increase in originations in the current quarter is primarily a result of increased demand for financed life insurance.

For more information regarding our specialty finance business, please see “Overview and Strategy—Specialty Finance” under “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

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Wealth Management Activities

The wealth management segment recorded stable revenue in the second quarter of 2015 as compared to the first quarter of 2015 and the second quarter of 2014. The wealth management segment expanded slightly in the current quarter as wealth management revenue increased by 2% and 1% in the second quarter of 2015 as compared to the first quarter of 2015 and second quarter of 2014, respectively. The increase in revenue in 2015 is mostly attributable to continued growth in assets under management due to new customers, as well as market appreciation.

For more information regarding our wealth management business, please see “Overview and Strategy—Wealth Management” under “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Recent Acquisition Transactions

Acquisition of Delavan Bancshares, Inc.

On January 16, 2015 the Company completed its acquisition of Delavan. Delavan was the parent company of Community Bank CBD. Community Bank CBD was merged into the Company's wholly-owned subsidiary Town Bank. In addition to the banking facilities, the Company acquired approximately $128 million of loans and assumed approximately $170 million of deposits.

Acquisition of bank facilities and certain related deposits of Talmer Bank & Trust

On August 8, 2014, the Company, through its subsidiary Town Bank, completed its acquisition of certain branch offices and deposits of Talmer Bank & Trust. Through this transaction, Town Bank acquired 11 branch offices and approximately $355 million in deposits.

Acquisition of a bank facility and certain related deposits of THE National Bank

On July 11, 2014, the Company, through its subsidiary Town Bank, completed its acquisition of the Pewaukee, Wisconsin branch of THE National Bank. In addition to the banking facility, Town Bank acquired approximately $75 million in loans and approximately $36 million in deposits.

Acquisition of a bank facility and certain related deposits of Urban Partnership Bank

On May 16, 2014, the Company, through its subsidiary Hinsdale Bank, completed its acquisition of the Stone Park branch office and certain related deposits of Urban Partnership Bank.

Acquisition of two affiliated Canadian insurance premium funding and payment services companies

On April 28, 2014, the Company, through its subsidiary, FIFC Canada, completed its acquisition of 100% of the shares of each of Policy Billing Services Inc. and Equity Premium Finance Inc., two affiliated Canadian insurance premium funding and payment services companies. 

Acquisition of a bank facility and certain assets and liabilities of Baytree National Bank &Trust Company

On February 28, 2014, the Company, through its subsidiary Lake Forest Bank and Trust Company ("Lake Forest Bank"), completed an acquisition of a bank branch from Baytree National Bank & Trust Company. In addition to the banking facility, Lake Forest Bank acquired certain assets and approximately $15 million of deposits.

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Acquisitions Completed Subsequent to June 30, 2015

On July 24, 2015, the Company acquired Community Financial Shares, Inc. ("CFIS"). CFIS was the parent company of Community Bank - Wheaton/Glen Ellyn ("CBWGE"), which had four banking locations in Wheaton and Glen Ellyn, Illinois. CBWGE was merged into the Company's wholly-owned subsidiary Wheaton Bank. Prior to purchase accounting adjustments, the Company acquired approximately $327 million of assets, including approximately $177 million of loans, assumed approximately $301 million of deposits and assumed approximately $4 million of junior subordinated debentures.

On July 17, 2015, the Company acquired Suburban Illinois Bancorp, Inc. ("Suburban"). Suburban was the parent company of Suburban Bank & Trust Company ("SBT"), which had ten banking locations in Chicago and its suburbs. SBT was merged into the Company's wholly-owned subsidiary Hinsdale Bank. Prior to purchase accounting adjustments, the Company acquired approximately $480 million of assets, including approximately $284 million of loans, assumed approximately $417 million of deposits and approximately $15 million of junior subordinated debentures.

On July 1, 2015, the Company, through its wholly-owned subsidiary Wintrust Bank, acquired North Bank, with two banking locations and headquartered in downtown Chicago, Illinois. Through this transaction, prior to purchase accounting adjustments, Wintrust Bank acquired approximately $112 million of assets, including approximately $55 million of loans, and approximately $100 million of deposits.

Other Completed Transactions

Preferred Stock Issuance

In June 2015, the Company issued and sold 5,000,000 shares of fixed-to-floating non-cumulative perpetual preferred stock, Series D, liquidation preference $25 per share (the “Series D Preferred Stock”) for $125.0 million in an equity offering. If declared, dividends on the Series D Preferred Stock are payable quarterly in arrears at a fixed rate of 6.50% per annum from the original issuance date to, but excluding, July 15, 2025, and from (and including) that date at a floating rate equal to three-month LIBOR plus a spread of 4.06% per annum. The Company received proceeds, after deducting underwriting discounts and commissions and prior to expenses, of approximately $121.2 million from the issuance, which are intended to be used for general corporate purposes.

Subordinated Notes Issuance

On June 13, 2014, the Company announced the closing of its public offering of $140.0 million aggregate principal amount of its 5.00% Subordinated Notes due 2024. The Company received proceeds prior to expenses of approximately $139.1 million from the offering, after deducting underwriting discounts and commissions, which are intended to be used for general corporate purposes.

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RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures for the three and six months ended June 30, 2015, as compared to the same period last year, are shown below:

	Three months ended
(Dollars in thousands, except per share data)	June 30, 2015			June 30, 2014			Percentage (%) or Basis Point (bp) Change
Net income	$	43,831		$	38,541		14	%
Net income per common share—Diluted	0.85			0.76			12
Net revenue (1)	233,905			203,282			15
Net interest income	156,892			149,180			5
Net interest margin (2)	3.41		%	3.62		%	(21) bp
Net overhead ratio (2)(3)	1.53			1.74			(21	)
Efficiency ratio (2) (4)	65.64			65.36			28
Return on average assets	0.87			0.84			3
Return on average common equity	8.38			8.03			35
Return on average tangible common equity	10.86			10.43			43

	Six months ended
(Dollars in thousands, except per share data)	June 30, 2015			June 30, 2014			Percentage (%) or Basis Point (bp) Change
Net income	$	82,883		$	73,041		13	%
Net income per common share—Diluted	1.61			1.44			12
Net revenue (1)	450,337			392,817			15
Net interest income	308,783			293,186			5
Net interest margin (2)	3.42		%	3.61		%	(19) bp
Net overhead ratio (2)(3)	1.61			1.84			(23	)
Efficiency ratio (2) (4)	66.72			67.12			(40	)
Return on average assets	0.83			0.81			2
Return on average common equity	8.02			7.74			28
Return on average tangible common equity	10.42			10.08			34
At end of period
Total assets	$	20,799,924		$	18,895,681		10	%
Total loans, excluding loans held-for-sale, excluding covered loans	15,513,650			13,749,996			13
Total loans, including loans held-for-sale, excluding covered loans	16,010,933			14,113,623			13
Total deposits	17,082,418			15,556,376			10
Total shareholders’ equity	2,264,982			1,998,235			13
Tangible common equity ratio (TCE) (2)	7.7		%	8.0		%	(30) bp
Tangible common equity ratio, assuming full conversion of preferred stock (2)	8.4		%	8.7		%	(30	)
Book value per common share (2)	$	42.24		$	40.21		5	%
Tangible common book value per share (2)	33.02			31.64			4
Market price per common share	53.38			46.00			16
Excluding covered loans:
Allowance for credit losses to total loans (5)	0.65		%	0.68		%	(3) bp
Non-performing loans to total loans	0.49		%	0.64		%	(15) bp

(1) Net revenue is net interest income plus non-interest income.

(2) See following section titled, “Supplementary Financial Measures/Ratios” for additional information on this performance measure/ratio.

(3) The net overhead ratio is calculated by netting total non-interest expense and total non-interest income, annualizing this amount, and dividing by that period’s total average assets. A lower ratio indicates a higher degree of efficiency.

(4) The efficiency ratio is calculated by dividing total non-interest expense by tax-equivalent net revenues (less securities gains or losses). A lower ratio indicates more efficient revenue generation.

(5) The allowance for credit losses includes both the allowance for loan losses and the allowance for lending-related commitments.

Certain returns, yields, performance ratios, and quarterly growth rates are “annualized” in this presentation and throughout this report to represent an annual time period. This is done for analytical purposes to better discern for decision-making purposes underlying performance trends when compared to full-year or year-over-year amounts. For example, balance sheet growth rates are most often expressed in terms of an annual rate. As such, 5% growth during a quarter would represent an annualized growth rate of 20%.

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Supplemental Financial Measures/Ratios

The accounting and reporting policies of Wintrust conform to GAAP in the United States and prevailing practices in the banking industry. However, certain non-GAAP performance measures and ratios are used by management to evaluate and measure the Company’s performance. These include taxable-equivalent net interest income (including its individual components), net interest margin (including its individual components), the efficiency ratio, tangible common equity ratio, tangible common book value per share and return on average tangible common equity. Management believes that these measures and ratios provide users of the Company’s financial information a more meaningful view of the performance of the interest-earning assets and interest-bearing liabilities and of the Company’s operating efficiency. Other financial holding companies may define or calculate these measures and ratios differently.

Management reviews yields on certain asset categories and the net interest margin of the Company and its banking subsidiaries on a fully taxable equivalent (“FTE”) basis. In this non-GAAP presentation, net interest income is adjusted to reflect tax-exempt interest income on an equivalent before-tax basis. This measure ensures comparability of net interest income arising from both taxable and tax-exempt sources. Net interest income on a FTE basis is also used in the calculation of the Company’s efficiency ratio. The efficiency ratio, which is calculated by dividing non-interest expense by total taxable-equivalent net revenue (less securities gains or losses), measures how much it costs to produce one dollar of revenue. Securities gains or losses are excluded from this calculation to better match revenue from daily operations to operational expenses. Management considers the tangible common equity ratio and tangible book value per common share as useful measurements of the Company’s equity. The Company references the return on average tangible common equity as a measurement of profitability.

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A reconciliation of certain non-GAAP performance measures and ratios used by the Company to evaluate and measure the Company’s performance to the most directly comparable GAAP financial measures is shown below:

	Three months ended						Six months ended
(Dollars and shares in thousands)	June 30, 2015			June 30 2014			June 30, 2015			June 30, 2014
Calculation of Net Interest Margin and Efficiency Ratio
(A) Interest Income (GAAP)	$	175,241		$	166,550		$	345,598		$	327,876
Taxable-equivalent adjustment:
—Loans	328			281			655			511
—Liquidity management assets	787			489			1,514			944
—Other earning assets	27			2			34			6
Interest Income—FTE	$	176,383		$	167,322		$	347,801		$	329,337
(B) Interest Expense (GAAP)	18,349			17,370			36,815			34,690
Net interest income—FTE	158,034			149,952			310,986			294,647
(C) Net Interest Income (GAAP) (A minus B)	$	156,892		$	149,180		$	308,783		$	293,186
(D) Net interest margin (GAAP)	3.39		%	3.60		%	3.39		%	3.59		%
Net interest margin—FTE	3.41		%	3.62		%	3.42		%	3.61		%
(E) Efficiency ratio (GAAP)	65.96		%	65.61		%	67.05		%	67.37		%
Efficiency ratio—FTE	65.64		%	65.36		%	66.72		%	67.12		%
(F) Net Overhead ratio (GAAP)	1.53		%	1.74		%	1.61		%	1.84		%
Calculation of Tangible Common Equity ratio (at period end)
Total shareholders’ equity	$	2,264,982		$	1,998,235
(G) Less: Convertible preferred stock	(126,312		)	(126,467		)
Less: Non-convertible preferred stock	(125,000		)	—
Less: Intangible assets	(439,570		)	(398,615		)
(H) Total tangible common shareholders’ equity	$	1,574,100		$	1,473,153
Total assets	$	20,799,924		$	18,895,681
Less: Intangible assets	(439,570		)	(398,615		)
(I) Total tangible assets	$	20,360,354		$	18,497,066
Tangible common equity ratio (H/I)	7.7		%	8.0		%
Tangible common equity ratio, assuming full conversion of preferred stock ((H-G)/I)	8.4		%	8.7		%
Calculation of book value per share
Total shareholders’ equity	$	2,264,982		$	1,998,235
Less: Preferred stock	(251,312		)	(126,467		)
(J) Total common equity	$	2,013,670		$	1,871,768
(K) Actual common shares outstanding	47,677			46,553
Book value per share (J/K)	$	42.24		$	40.21
Tangible common book value per share (H/K)	$	33.02		$	31.64
Calculation of return on average common equity
(L) Net income applicable to common shares	$	42,251		$	36,960		$	79,722		$	69,879
Add: After-tax intangible asset amortization	597			708			1,212			1,418
(M) Tangible net income applicable to common shares	42,848			37,668			80,934			71,297
Total average shareholders' equity	2,156,128			1,971,656			2,135,357			1,947,785
Less: Average preferred stock	(134,586		)	(126,473		)	(130,538		)	(126,475		)
(N) Total average common shareholders' equity	2,021,542			1,845,183			2,004,819			1,821,310
Less: Average intangible assets	(439,455		)	(396,425		)	(437,964		)	(394,574		)
(O) Total average tangible common shareholders’ equity	1,582,087			1,448,758			1,566,855			1,426,736
Return on average common equity, annualized (L/N)	8.38		%	8.03		%	8.02		%	7.74		%
Return on average tangible common equity, annualized (M/O)	10.86		%	10.43		%	10.42		%	10.08		%

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Critical Accounting Policies

The Company’s Consolidated Financial Statements are prepared in accordance with GAAP in the United States and prevailing practices of the banking industry. Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. Certain policies and accounting principles inherently have a greater reliance on the use of estimates, assumptions and judgments, and as such have a greater possibility that changes in those estimates and assumptions could produce financial results that are materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not carried on the financial statements at fair value warrants an impairment write-down or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event, are based on information available as of the date of the financial statements; accordingly, as information changes, the financial statements could reflect different estimates and assumptions. Management views critical accounting policies to be those which are highly dependent on subjective or complex judgments, estimates and assumptions, and where changes in those estimates and assumptions could have a significant impact on the financial statements. Management currently views critical accounting policies to include the determination of the allowance for loan losses, allowance for covered loan losses and the allowance for losses on lending-related commitments, loans acquired with evidence of credit quality deterioration since origination, estimations of fair value, the valuations required for impairment testing of goodwill, the valuation and accounting for derivative instruments and income taxes as the accounting areas that require the most subjective and complex judgments, and as such could be most subject to revision as new information becomes available. For a more detailed discussion on these critical accounting policies, see “Summary of Critical Accounting Policies” beginning on page 50 of the Company’s 2014 Form 10-K.

Net Income

Net income for the quarter ended June 30, 2015 totaled $43.8 million, an increase of $5.3 million, or 14%, compared to the second quarter of 2014. On a per share basis, net income for the second quarter of 2015 totaled $0.85 per diluted common share compared to $0.76 in the second quarter of 2014.

The most significant factors impacting net income for the second quarter of 2015 as compared to the same period in the prior year include an increase in net interest income as a result of growth in earning assets, higher mortgage banking revenue due to a favorable mortgage banking environment, higher fees from covered call options and the recognition of a $1.5 million BOLI death benefit. These improvements were partially offset by an increase in salary and employee benefit expense from increased salaries caused by the addition of employees from various acquisitions and higher staffing levels as the Company grows and an increase in commissions and incentive compensation attributable to higher expenses on variable pay based arrangements as well as increased advertising and marketing expenses for community-related advertisements and sponsorships. The return on average common equity for the second quarter of 2015 was 8.38%, compared to 8.03% for the prior year second quarter.

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Net Interest Income

The primary source of the Company’s revenue is net interest income. Net interest income is the difference between interest income and fees on earnings assets, such as loans and securities, and interest expense on the liabilities to fund those assets, including interest bearing deposits and other borrowings. The amount of net interest income is affected by both changes in the level of interest rates, and the amount and composition of earning assets and interest bearing liabilities. Net interest margin represents tax-equivalent net interest income as a percentage of the average earning assets during the period.

Quarter Ended June 30, 2015 compared to the Quarters Ended March 31, 2015 and June 30, 2014

The following table presents a summary of the Company’s net interest income and related net interest margin, calculated on a fully taxable equivalent basis, for the second quarter of 2015 as compared to the first quarter of 2015 (sequential quarters) and second quarter of 2014 (linked quarters):

	Average Balance for three months ended,									Interest for three months ended,						Yield/Rate for three months ended,
(Dollars in thousands)	June 30, 2015			March 31, 2015			June 30, 2014			June 30, 2015		March 31, 2015		June 30, 2014		June 30, 2015		March 31, 2015		June 30, 2014
Liquidity management assets(1)(2)(7)	$	2,709,176		$	2,868,906		$	2,607,980		$	15,949	$	16,214	$	14,850	2.36	%	2.29	%	2.28	%
Other earning assets(2)(3)(7)	32,115			27,717			27,463			283		201		207		3.54		2.94		3.02
Loans, net of unearned income(2)(4)(7)	15,632,875			15,031,917			13,710,535			156,970		151,316		145,169		4.03		4.08		4.25
Covered loans	202,663			214,211			292,553			3,181		3,687		7,096		6.30		6.98		9.73
Total earning assets(7)	$	18,576,829		$	18,142,751		$	16,638,531		$	176,383	$	171,418	$	167,322	3.81	%	3.83	%	4.03	%
Allowance for loan and covered loan losses	(101,211		)	(96,918		)	(98,255		)
Cash and due from banks	236,242			249,687			232,716
Other assets	1,545,136			1,530,720			1,529,950
Total assets	$	20,256,996		$	19,826,240		$	18,302,942
Interest-bearing deposits	$	13,115,453		$	12,863,507		$	12,284,444		$	11,996	$	11,814	$	11,759	0.37	%	0.37	%	0.38	%
Federal Home Loan Bank advances	347,656			357,532			446,778			1,812		2,156		2,705		2.09		2.45		2.43
Other borrowings	193,660			194,994			148,135			787		788		510		1.63		1.64		1.38
Subordinated notes	140,000			140,000			27,692			1,777		1,775		354		5.07		5.07		5.06
Junior subordinated notes	249,493			249,493			249,493			1,977		1,933		2,042		3.13		3.10		3.24
Total interest-bearing liabilities	$	14,046,262		$	13,805,526		$	13,156,542		$	18,349	$	18,466	$	17,370	0.52	%	0.54	%	0.53	%
Non-interest bearing deposits	3,725,728			3,584,452			2,880,501
Other liabilities	328,878			321,906			294,243
Equity	2,156,128			2,114,356			1,971,656
Total liabilities and shareholders’ equity	$	20,256,996		$	19,826,240		$	18,302,942
Interest rate spread(5)(7)																3.29	%	3.29	%	3.50	%
Net free funds/contribution(6)	$	4,530,567		$	4,337,225		$	3,481,989								0.12	%	0.13	%	0.12	%
Net interest income/ margin(7)										$	158,034	$	152,952	$	149,952	3.41	%	3.42	%	3.62	%

(1) Liquidity management assets include available-for-sale securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.

(2) Interest income on tax-advantaged loans, trading securities and securities reflects a tax-equivalent adjustment based on a marginal federal corporate tax rate of 35%. The total adjustments for the three months ended June 30, 2015, March 31, 2015 and June 30, 2014 were $1.1 million, $1.1 millionand $772,000, respectively.

(3) Other earning assets include brokerage customer receivables and trading account securities.

(4) Loans, net of unearned income, include loans held-for-sale and non-accrual loans.

(5) Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.

(6) Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.

(7) See “Supplemental Financial Measures/Ratios” for additional information on this performance ratio.

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Six months ended June 30, 2015 compared to six months ended June 30, 2014

The following table presents a summary of the Company's net interest income and related net interest margin, calculated on a fully

taxable equivalent basis, for the six months ended June 30, 2015 compared to the six months ended June 30, 2014 :

	Average Balance for six months ended,						Interest for six months ended,				Yield/Rate for six months ended,
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015		June 30, 2014		June 30, 2015		June 30, 2014
Liquidity management assets(1)(2)(7)	$	2,788,600		$	2,627,243		$	32,163	$	29,383	2.33	%	2.26	%
Other earning assets(2)(3)(7)	29,928			28,190			484		429		3.26		3.07
Loans, net of unearned income(2)(4)(7)	15,334,056			13,495,523			308,285		285,489		4.05		4.27
Covered loans	208,405			309,127			6,869		14,036		6.65		9.16
Total earning assets(7)	$	18,360,989		$	16,460,083		$	347,801	$	329,337	3.82	%	4.03	%
Allowance for loan and covered loan losses	(99,077		)	(104,247		)
Cash and due from banks	242,927			228,046
Other assets	1,537,969			1,558,950
Total assets	$	20,042,808		$	18,142,832
Interest-bearing deposits	$	12,990,176		$	12,203,266		$	23,810	$	23,682	0.37	%	0.39	%
Federal Home Loan Bank advances	352,566			418,036			3,968		5,348		2.27		2.58
Other borrowings	194,324			196,274			1,575		1,260		1.63		1.29
Subordinated notes	140,000			13,923			3,552		354		5.07		5.06
Junior subordinated notes	249,493			249,493			3,910		4,046		3.12		3.23
Total interest-bearing liabilities	$	13,926,559		$	13,080,992		$	36,815	$	34,690	0.53	%	0.53	%
Non-interest bearing deposits	3,655,480			2,804,111
Other liabilities	325,412			309,944
Equity	2,135,357			1,947,785
Total liabilities and shareholders’ equity	$	20,042,808		$	18,142,832
Interest rate spread(5)(7)											3.29	%	3.50	%
Net free funds/contribution(6)	$	4,434,430		$	3,379,091						0.13	%	0.11	%
Net interest income/ margin(7)							$	310,986	$	294,647	3.42	%	3.61	%

(1) Liquidity management assets include available-for-sale securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.

(2) Interest income on tax-advantaged loans, trading securities and securities reflects a tax-equivalent adjustment based on a marginal federal corporate tax rate of 35%. The total adjustments for the six months ended June 30, 2015 and June 30, 2014 were $2.2 million and $1.5 million, respectively.

(3) Other earning assets include brokerage customer receivables and trading account securities.

(4) Loans, net of unearned income, include loans held-for-sale and non-accrual loans.

(5) Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.

(6) Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.

(7) See “Supplemental Financial Measures/Ratios” for additional information on this performance ratio.

Analysis of Changes in Tax-equivalent Net Interest Income

The following table presents an analysis of the changes in the Company’s tax-equivalent net interest income comparing the three month periods ended June 30, 2015 to March 31, 2015 and June 30, 2014, and the six month periods ended June 30, 2015 and June 30, 2014. The reconciliations set forth the changes in the tax-equivalent net interest income as a result of changes in volumes, changes in rates and differing number of days in each period:

	Second Quarter of 2015 Compared to First Quarter of 2015			Second Quarter of 2015 Compared to Second Quarter of 2014			First Six Months of 2015 Compared to First Six Months of 2014
(Dollars in thousands)
Tax-equivalent net interest income for comparative period	$	152,952		$	149,952		$	294,647
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)	4,861			17,381			33,672
Change due to interest rate fluctuations (rate)	(1,459		)	(9,299		)	(17,333		)
Change due to number of days in each period	1,680			—			—
Tax-equivalent net interest income for the period ended June 30, 2015	$	158,034		$	158,034		$	310,986

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Non-interest Income

For the second quarter of 2015, non-interest income totaled $77.0 million, an increase of $22.9 million, or 42%, compared to the second quarter of 2014. On a year-to-date basis, non-interest income for the first six months of 2015 totaled $141.6 million and increased $41.9 million compared to the same period in 2014. The increases in both periods are mostly due to increases in mortgage banking revenue, fees from covered call options, and the recognition of a $1.5 million BOLI death benefit.

The following table presents non-interest income by category for the periods presented:

	Three Months Ended						$			%
(Dollars in thousands)	June 30, 2015			June 30, 2014			Change			Change
Brokerage	$	6,750		$	8,270		$	(1,520	)	(18	)%
Trust and asset management	11,726			9,952			1,774			18
Total wealth management	18,476			18,222			254			1
Mortgage banking	36,007			23,804			12,203			51
Service charges on deposit accounts	6,474			5,688			786			14
Losses on available-for-sale securities, net	(24		)	(336		)	312			(93	)
Fees from covered call options	4,565			1,244			3,321			NM
Trading gains (losses), net	160			(743		)	903			NM
Other:
Interest rate swap fees	2,347			1,192			1,155			97
BOLI	2,180			675			1,505			NM
Administrative services	1,053			938			115			12
Miscellaneous	5,775			3,418			2,357			69
Total Other	11,355			6,223			5,132			82
Total Non-Interest Income	$	77,013		$	54,102		$	22,911		42	%

	Six months ended						$			%
(Dollars in thousands)	June 30, 2015			June 30, 2014			Change			Change
Brokerage	$	13,602		$	15,361		$	(1,759	)	(11	)%
Trust and asset management	22,974			19,674			3,300			17
Total wealth management	36,576			35,035			1,541			4
Mortgage banking	63,807			40,232			23,575			59
Service charges on deposit accounts	12,771			11,034			1,737			16
Gains (losses) on available-for-sale securities, net	500			(369		)	869			NM
Fees from covered call options	8,925			2,786			6,139			NM
Trading losses, net	(317		)	(1,395		)	1,078			(77	)
Other:
Interest rate swap fees	4,538			2,143			2,395			NM
BOLI	2,946			1,387			1,559			NM
Administrative services	2,079			1,796			283			16
Miscellaneous	9,729			6,982			2,747			39
Total Other	19,292			12,308			6,984			57
Total Non-Interest Income	$	141,554		$	99,631		$	41,923		42	%

NM - Not Meaningful

The significant changes in non-interest income for the three and six month periods ended June 30, 2015 compared to the three and six month periods ended June 30, 2014 are discussed below.

Wealth management revenue totaled $18.5 million in the second quarter of 2015 compared to $18.2 million in the second quarter of 2014, an increase of 1%. On a year-to-date basis, wealth management revenues totaled $36.6 million for the first six months of 2015, compared to $35.0 million for the first six months of 2014. The increase in the current year period is primarily attributable

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to growth in assets under management from new customers and market appreciation. Wealth management revenue is comprised of the trust and asset management revenue of The Chicago Trust Company and Great Lakes Advisors and the brokerage commissions, money managed fees and insurance product commissions at Wayne Hummer Investments.

For the quarter ended June 30, 2015, mortgage banking revenue totaled $36.0 million, an increase of $12.2 million, or 51% when compared to the second quarter of 2014. For the six months ended June 30, 2015, mortgage banking revenue totaled $63.8 million compared to $40.2 million for the six months ended June 30, 2014. The increase in mortgage banking revenue in the the three and six months ended June, 30 2015 as compared to the prior year periods resulted primarily from higher origination volumes as a result of a favorable mortgage banking environment in the current quarter. Mortgage loans originated and purchased to be sold to the secondary market were $1.2 billion in the second quarter of 2015 as compared to $840.9 million in the second quarter of 2014. On a year-to-date basis, mortgage loan originations were $2.1 billion for the six months ended June 30, 2015 compared to $1.4 billion for the same period of the prior year. Mortgage banking revenue is comprised of revenue from activities related to originating, selling and servicing residential real estate loans for the secondary market, including gains or losses from the sale of mortgage loans originated, origination fees, underwriting fees and other fees associated with the origination of loans. Mortgage revenue is also impacted by changes in the fair value of MSRs as the Company does not hedge this change in fair value. The Company typically originates mortgage loans held-for-sale with associated MSRs either retained or released. The Company records MSRs at fair value on a recurring basis.

The Company enters into residential mortgage loan sale agreements with investors in the normal course of business. These agreements usually require certain representations concerning credit information, loan documentation, collateral and insurability. Investors have requested the Company to indemnify them against losses on certain loans or to repurchase loans which the investors believe do not comply with applicable representations. Management maintains a liability for estimated losses on loans expected to be repurchased or on which indemnification is expected to be provided and regularly evaluates the adequacy of this recourse liability based on trends in repurchase and indemnification requests, actual loss experience, known and inherent risks in the loans, and current economic conditions. The liability for estimated losses on repurchase and indemnification claims for residential mortgage loans previously sold to investors was $4.0 million and $2.9 million at June 30, 2015 and 2014, respectively, and was included in other liabilities on the Consolidated Statements of Condition.

Management believes that the Company’s foreclosure process related to mortgage loans held-for-sale continues to be effective and operate in compliance with all applicable laws. Before beginning the foreclosure process, a mortgage loan foreclosure working group of the Bank reviews the identified delinquent loan. All documents and activities related to the foreclosure process are executed in-house by mortgage department personnel.

Service charges on deposit accounts totaled $6.5 million in the second quarter of 2015, an increase of $786,000 compared to the quarter ended June 30, 2014. On a year-to-date basis, service charges on deposit accounts totaled $12.8 million for the six months ended June 30, 2015 as compared to $11.0 million for the same period of the prior year. The increase in current year periods is primarily a result of higher account analysis fees on deposit accounts which have increased as a result of the Company's commercial banking initiative.

Fees from covered call option transactions totaled $4.6 million for the second quarter 2015, compared to $1.2 million for the second quarter of 2014. On a year-to-date basis, fees from covered call option transactions totaled $8.9 million for the six months ended June 30, 2015, compared to $2.8 million for the same period of the prior year. The Company has typically written call options with terms of less than three months against certain U.S. Treasury and agency securities held in its portfolio for liquidity and other purposes. Management has effectively entered into these transactions with the goal of economically hedging security positions and enhancing its overall return on its investment portfolio by using fees generated from these options to compensate for net interest margin compression. These option transactions are designed to mitigate overall interest rate risk but do not qualify as hedges pursuant to accounting guidance. Fees from covered call options increased in the current quarter primarily as a result of selling call options against a larger value of underlying securities resulting in higher premiums received by the Company. There were no outstanding call option contracts at June 30, 2015 and June 30, 2014.

The Company recognized $160,000 of trading gains in the second quarter of 2015 compared to trading losses of $743,000 in the second quarter of 2014. On a year-to-date basis, the Company recognized $317,000 of trading losses for the six months ended June 30, 2015 compared to $1.4 million of trading losses for the six months ended June 30, 2014. Trading gains and losses recorded by the Company primarily result from fair value adjustments related to interest rate derivatives not designated as hedges, primarily interest rate cap instruments that the Company uses to manage interest rate risk, specifically in the event of future increases in short-term interest rates. The change in value of the cap derivatives reflects the present value of expected cash flows over the remaining life of the caps. These expected cash flows are derived from the expected path for and a measure of volatility for short-term interest rates.

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Other non-interest income totaled $11.4 million in the second quarter of 2015 compared to $6.2 million in the second quarter of 2014. On a year-to-date basis, other non-interest income totaled $19.3 million for the first six months of 2015 as compared to $12.3 million in the same period of the prior year. The increases in current year periods are primarily due to an increase in swap fee revenues resulting from interest rate hedging transactions related to both customer-based trades and the related matched trades with inter-bank dealer counterparties as well as the recognition of a $1.5 million BOLI death benefit.

Non-interest Expense

Non-interest expense for the second quarter of 2015 totaled $154.3 million and increased approximately $20.7 million, or 15%, compared to the second quarter of 2014. The increase compared to the second quarter of 2014 was primarily attributable to higher salary and employee benefit costs and increased equipment, occupancy, data processing, marketing and professional fees. On a year-to-date basis, non-interest expense for the first six months of 2015 totaled $301.6 million and increased $36.7 million, or 14%, compared to the same period in 2014. The increase compared to the first six months of 2014 was primarily attributable to higher salary and employee benefits and increased equipment, occupancy, data processing, marketing and professional fees.

The following table presents non-interest expense by category for the periods presented:

	Three months ended				$ Change			% Change
(Dollars in thousands)	June 30, 2015		June 30, 2014
Salaries and employee benefits:
Salaries	$	46,617	$	43,349	$	3,268		8	%
Commissions and incentive compensation	33,387		25,398		7,989			31
Benefits	14,417		13,216		1,201			9
Total salaries and employee benefits	94,421		81,963		12,458			15
Equipment	7,914		7,223		691			10
Occupancy, net	11,401		9,850		1,551			16
Data processing	6,081		4,543		1,538			34
Advertising and marketing	6,406		3,558		2,848			80
Professional fees	5,074		4,046		1,028			25
Amortization of other intangible assets	934		1,156		(222		)	(19	)
FDIC insurance	3,047		3,196		(149		)	(5	)
OREO expense, net	841		2,490		(1,649		)	(66	)
Other:
Commissions—3rd party brokers	1,403		1,633		(230		)	(14	)
Postage	1,578		1,465		113			8
Miscellaneous	15,197		12,468		2,729			22
Total other	18,178		15,566		2,612			17
Total Non-Interest Expense	$	154,297	$	133,591	$	20,706		15	%

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	Six months ended				$ Change			% Change
(Dollars in thousands)	June 30, 2015		June 30, 2014
Salaries and employee benefits:
Salaries	$	93,465	$	87,085	$	6,380		7	%
Commissions and incentive compensation	58,881		46,931		11,950			25
Benefits	32,205		27,881		4,324			16
Total salaries and employee benefits	184,551		161,897		22,654			14
Equipment	15,750		14,626		1,124			8
Occupancy, net	23,752		20,843		2,909			14
Data processing	11,529		9,258		2,271			25
Advertising and marketing	10,313		6,374		3,939			62
Professional fees	9,738		7,500		2,238			30
Amortization of other intangible assets	1,947		2,319		(372		)	(16	)
FDIC insurance	6,034		6,147		(113		)	(2	)
OREO expense, net	2,252		6,466		(4,214		)	(65	)
Other:
Commissions—3rd party brokers	2,789		3,290		(501		)	(15	)
Postage	3,211		2,894		317			11
Miscellaneous	29,749		23,292		6,457			28
Total other	35,749		29,476		6,273			21
Total Non-Interest Expense	$	301,615	$	264,906	$	36,709		14	%

The significant changes in non-interest expense for the three and six months ended June 30, 2015 compared to the period ended June 30, 2014 are discussed below.

Salaries and employee benefits expense increased $12.5 million, or 15%, in the second quarter of 2015 compared to the second quarter of 2014 primarily as a result of a $8.0 million increase in commissions and incentive compensation primarily attributable to higher expenses on variable pay based arrangements, a $3.3 million increase in salaries as a result of various acquisitions and additional staffing as the Company grows and a $1.2 million increase in employee benefits from higher insurance costs. On a year-to-date basis, salaries and employee benefits expense increased $22.7 million, or 14%, in the first six months of 2015 compared to the first six months on 2014 primarily as a result of a $12.0 million increase in commissions and incentive compensation related to higher expenses on variable pay based arrangements, a $6.4 million increase in salaries as a result of various acquisitions and additional staffing as the Company grows and a $4.3 million increase in employee benefits resulting from higher insurance costs and adjustments to pension liabilties.

Equipment expense totaled $7.9 million for the second quarter of 2015, an increase of $691,000 compared to the second quarter of 2014. On a year-to-date basis, equipment expense totaled $15.8 million for the first six months of 2015 as compared to $14.6 million for the first six months of 2014. The increase in the current year periods is primarily related to increased software license fees and maintenance and repair expenses. Equipment expense includes depreciation on equipment, maintenance and repairs, equipment rental and software fees.

Occupancy expense for the second quarter of 2015 was $11.4 million, an increase of $1.6 million, or 16%, compared to the same period in 2014. On a year-to-date basis, occupancy expense totaled $23.8 million for the first six months of 2015, as compared to $20.8 million for the first six months of 2014. The increase in the current year periods is primarily the result of increased rent expense on leased properties as well as increased depreciation and property taxes on owned locations including those obtained in the Company's recent acquisitions. Occupancy expense includes depreciation on premises, real estate taxes, utilities and maintenance of premises, as well as net rent expense for leased premises.

Advertising and marketing expenses for the second quarter of 2015 were $6.4 million, as compared to $3.6 million for the second quarter of 2014. On a year-to-date basis, advertising and marketing expenses totaled $10.3 million for the first six months of 2015, as compared to $6.4 million for the first six months of 2014. The increase in the current year periods relates primarily to expenses for community-related advertisements and sponsorships. Marketing costs are incurred to promote the Company's brand, commercial banking capabilities, the Company's various products, to attract loans and deposits and to announce new branch openings as well as the expansion of the Company's non-bank businesses. The level of marketing expenditures depends on the type of marketing programs utilized which are determined based on the market area, targeted audience, competition and various other factors.

Professional fees for the second quarter of 2015 were $5.1 million, as compared to $4.0 million for the second quarter of 2014. The increase in the second quarter of 2015 compared to the second quarter of 2014 is primarily the result of increased legal expense,

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including legal fees incurred in connection with recent acquisitions. On a year-to-date basis, professional fees for the first six months of 2015 were $9.7 million, as compared to $7.5 million for the first six months of 2014. The increase in current year period as compared to the same period in 2014 relates primarily to increased legal and consulting fees. Professional fees include legal, audit and tax fees, external loan review costs and normal regulatory exam assessments.

OREO expense totaled $841,000 in the second quarter of 2015 compared to $2.5 million recorded in the second quarter of 2014. The decrease in the first quarter of 2015 compared to the same period in 2014 is primarily due to fewer negative valuation adjustments of OREO properties as well as higher gains recorded on non-covered OREO sales in the current quarter. On a year-to-date basis, OREO expenses totaled $2.3 million for the first six months of 2015 as compared to $6.5 million for the same period in 2014. The decrease in the first six months of 2015 is primarily the result of fewer negative valuation adjustments of OREO properties. OREO costs include all costs related to obtaining, maintaining and selling other real estate owned properties.

Miscellaneous other expenses in the second quarter of 2015 increased $2.6 million or 17%, as compared to the quarter ended June 30, 2014. On a year-to-date basis, miscellaneous expense increased $6.3 million compared to the same period in 2014. The increase in the current year periods compared to the same periods in 2014 are due to increased travel and entertainment expenses and increased costs related to postage, insurance and operating losses. Miscellaneous expense includes ATM expenses, correspondent bank charges, directors' fees, telephone, travel and entertainment, corporate insurance, dues and subscriptions, problem loan expenses, operating losses and lending origination costs that are not deferred.

Income Taxes

The Company recorded income tax expense of $26.3 million for the three months ended June 30, 2015, compared to $24.5 million for same period of 2014. Income tax expense was $50.3 million and $46.3 million for the six months ended June 30, 2015 and 2014, respectively. The effective tax rates were 37.5% and 38.9% for the second quarters of 2015 and 2014, respectively, and 37.8% and 38.8% for the 2015 and 2014 year-to-date periods, respectively. The lower effective tax rates in the three months and six months ended June 30, 2015 as compared to the same periods of 2014 were a result of lower state income tax rates in Illinois in 2015 and an increase in tax-exempt BOLI income.

Operating Segment Results

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management. The Company’s profitability is primarily dependent on the net interest income, provision for credit losses, non-interest income and operating expenses of its community banking segment. For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans originated by the specialty finance segment and sold to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment's risk-weighted assets.

The community banking segment’s net interest income for the quarter ended June 30, 2015 totaled $127.0 million as compared to $121.2 million for the same period in 2014, an increase of $5.8 million, or 5%. On a year-to-date basis, net interest income for the segment increased by $11.7 million from $238.0 million for the first six months of 2014 to $249.6 million for the first six months of 2015. The increase in both the three and six month periods is primarily attributable to growth in earning assets including those acquired in bank acquisitions. The community banking segment’s non-interest income totaled $56.3 million in the second quarter of 2015, an increase of $22.9 million, or 69%, when compared to the second quarter of 2014 total of $33.3 million. On a year-to-date basis, non-interest income totaled $101.2 million for the first six months of 2015, an increase of $40.5 million, or 67%, compared to $60.7 million in the six months ended June 30, 2014. The increase in non-interest income in the quarter and year-to-date periods was primarily attributable to higher mortgage banking revenues from higher originations in 2015 as a result of the favorable mortgage environment. The community banking segment’s net income for the quarter ended June 30, 2015 totaled $29.1 million, an increase of $4.5 million as compared to net income in the second quarter of 2014 of $24.6 million. On a year-to-date basis, the community banking segment's net income was $54.1 million for the first six months of 2015 as compared to $47.2 million for the first six months of 2014.

The specialty finance segment's net interest income totaled $21.3 million for the quarter ended June 30, 2015, compared to $19.8 million for the same period in 2014, an increase of $1.5 million, or 8%. The specialty finance segment’s non-interest income totaled $9.1 million for the three month period ending June 30, 2015 compared to $8.5 million for the three month period ending June 30, 2014. On a year-to-date basis, net interest income and non-interest income increased by $3.4 million and $670,000, respectively, in the first six months of 2015 as compared to the first six months of 2014. The increases in both net interest income and non-interest income in the current year periods are primarily the result of increased loan balances since the prior year periods.

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Our commercial premium finance operations, life insurance finance operations and accounts receivable finance operations accounted for 57%, 35% and 8%, respectively, of the total revenues of our specialty finance business for the six month period ending June 30, 2015. The net income of the specialty finance segment for the quarter ended June 30, 2015 totaled $11.4 million as compared to $10.3 million for the quarter ended June 30, 2014. On a year-to-date basis, the net income of the specialty finance segment for the six months ended June 30, 2015 totaled $22.3 million as compared to $19.3 million for the six months ended June 30, 2014.

The wealth management segment reported net interest income of $4.3 million for the second quarter of 2015 compared to $4.0 million in the same quarter of 2014. On a year-to-date basis, net interest income totaled $8.5 million for the first six months of 2015 as compared to $8.1 million for the first six months of 2014. Net interest income for this segment is primarily comprised of an allocation of the net interest income earned by the community banking segment on non-interest bearing and interest-bearing wealth management customer account balances on deposit at the banks. Wealth management customer account balances on deposit at the banks averaged $880.7 million and $838.1 million in the first six months of 2015 and 2014, respectively. This segment recorded non-interest income of $19.0 million for the second quarter of 2015, which was relatively flat compared to $19.2 million for the second quarter of 2014. On a year-to-date basis, the wealth management segment's non-interest income totaled $37.7 million during the first six months of 2015 as compared to $36.2 million in the first six months of 2014. The increase in non-interest income on a year-to-date basis is primarily attributable to growth in assets under management due to new customers as well as market appreciation. Distribution of wealth management services through each bank continues to be a focus of the Company as the number of financial advisors in its banks continues to increase. The Company is committed to growing the wealth management segment in order to better service its customers and create a more diversified revenue stream. The wealth management segment’s net income totaled $3.3 million for the second quarter of 2015 compared to net income of $3.6 million for the second quarter of 2014. On a year-to-date basis, wealth management segment's net income totaled $6.5 million for the six month periods ending June 30, 2015 and 2014.

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Financial Condition

Total assets were $20.8 billion at June 30, 2015, representing an increase of $1.9 billion, or 10%, when compared to June 30, 2014 and an increase of approximately $417.7 million, or 8% on an annualized basis, when compared to March 31, 2015. Total funding, which includes deposits, all notes and advances, including the junior subordinated debentures, was $18.2 billion at June 30, 2015, $17.9 billion at March 31, 2015, and $16.6 billion at June 30, 2014. See Notes 5, 6, 9, 10 and 11 of the Consolidated Financial Statements presented under Item 1 of this report for additional period-end detail on the Company’s interest-earning assets and funding liabilities.

Interest-Earning Assets

The following table sets forth, by category, the composition of average earning asset balances and the relative percentage of total average earning assets for the periods presented:

	Three Months Ended
	June 30, 2015				March 31, 2015				June 30, 2014
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Loans:
Commercial	$	4,249,214	23	%	$	3,979,193	22	%	$	3,525,503	21	%
Commercial real estate	4,756,767		26		4,625,033		26		4,315,297		26
Home equity	714,808		4		713,537		4		709,741		4
Residential real estate (1)	929,493		5		805,620		4		704,249		4
Premium finance receivables	4,839,482		26		4,727,623		26		4,285,940		26
Other loans	143,111		1		180,911		1		169,805		1
Total loans, net of unearned income excluding covered loans (2)	$	15,632,875	85	%	$	15,031,917	83	%	$	13,710,535	82	%
Covered loans	202,663		1		214,211		1		292,553		2
Total average loans (2)	$	15,835,538	86	%	$	15,246,128	84	%	$	14,003,088	84	%
Liquidity management assets (3)	$	2,709,176	14	%	$	2,868,906	16	%	2,607,980		16	%
Other earning assets (4)	32,115		—		27,717		—		27,463		—
Total average earning assets	$	18,576,829	100	%	$	18,142,751	100	%	$	16,638,531	100	%
Total average assets	$	20,256,996			$	19,826,240			$	18,302,942
Total average earning assets to total average assets			92	%			92	%			91	%

(1) Includes mortgage loans held-for-sale

(2) Includes loans held-for-sale and non-accrual loans

(3) Liquidity management assets include available-for-sale securities, other securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements

(4) Other earning assets include brokerage customer receivables and trading account securities

Total average earning assets for the second quarter of 2015 increased $1.9 billion, or 12%, to $18.6 billion, compared to the second quarter of 2014, and increased $434.1 million, or 10% on an annualized basis, compared to the first quarter of 2015. Average earning assets comprised 92% of average total assets at June 30, 2015 and March 31, 2015 and 91% at June 30, 2014.

Average total loans, net of unearned income, totaled $15.8 billion in the second quarter of 2015, increasing $1.8 billion, or 13%, from the second quarter of 2014 and $589.4 million, or 16% on an annualized basis, from the first quarter of 2015. Average commercial loans totaled $4.2 billion in the second quarter of 2015, and increased $723.7 million, or 21%, over the average balance in the same period of 2014, while average commercial real estate loans totaled $4.8 billion in the second quarter of 2015, increasing $441.5 million, or 10%, compared to the second quarter of 2014. Combined, these categories comprised 57% and 56% of the average loan portfolio in the second quarters of 2015 and 2014, respectively. Average balances increased compared to the quarter ended March 31, 2015, with average commercial loans increasing by $270.0 million, or 27% annualized, and average commercial real estate loans increasing by $131.7 million, or 11% annualized. The growth realized in these categories for the second quarter of 2015 as compared to the sequential and prior year periods is primarily attributable to increased business development efforts and various bank acquisitions.

Home equity loans averaged $714.8 million in the second quarter of 2015, and increased $5.1 million, or 1%, when compared to the average balance in the same period of 2014 and increased $1.3 million, or 1% annualized, when compared to quarter ended March 31, 2015. The Company has been actively managing its home equity portfolio to ensure that diligent pricing, appraisal and other underwriting activities continue to exist. The Company has not sacrificed asset quality or pricing standards when originating new home equity loans. Our home equity loan portfolio has performed well in light of the deterioration in the overall residential

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real estate market experienced from 2008 to 2012. The number of new home equity line of credit commitments originated by us has decreased due to the refinancing of these loans into long-term fixed-rate residential real estate loans and declines in housing valuations that have decreased the amount of equity against which homeowners may borrow.

Residential real estate loans averaged $929.5 million in the second quarter of 2015, and increased $225.2 million, or 32% from the average balance of $704.2 million in same period of 2014. Additionally, compared to the quarter ended March 31, 2015, the average balance increased $123.9 million, or 62% on an annualized basis. This category includes mortgage loans held-for-sale. By selling residential mortgage loans into the secondary market, the Company eliminates the interest-rate risk associated with these loans, as they are predominantly long-term fixed rate loans, and provides a source of non-interest revenue. Average mortgage loans held-for-sale increased when compared to the quarter ended June 30, 2015 and March 31, 2015 as result of higher origination volumes due to an improved mortgage banking environment.

Average premium finance receivables totaled $4.8 billion in the second quarter of 2015, and accounted for 31% of the Company’s average total loans. Premium finance receivables consist of a commercial portfolio and a life portfolio, each comprising approximately 50% of the average total balance of premium finance receivables for the second quarter of 2015, and 54% and 46%, respectively, for the second quarter of 2014. In the second quarter of 2015, average premium finance receivables increased $553.5 million, or 13%, from the average balance of $4.3 billion at the same period of 2014. Additionally, the average balance increased $111.9 million, or 9% on an annualized basis, from the average balance of $4.7 billion in the quarter ended March 31, 2015. The increase during 2015 compared to both periods was the result of continued originations within the portfolio due to the effective marketing and customer servicing. Approximately $1.7 billion of premium finance receivables were originated in the second quarter of 2015 compared to $1.6 billion during the same period of 2014.

Other loans represent a wide variety of personal and consumer loans to individuals as well as indirect automobile and consumer loans and high-yielding short-term accounts receivable financing to clients in the temporary staffing industry located throughout the United States. Consumer loans generally have shorter terms and higher interest rates than mortgage loans but generally involve more credit risk due to the type and nature of the collateral. Additionally, short-term accounts receivable financing may also involve greater credit risks than generally associated with the loan portfolios of more traditional community banks depending on the marketability of the collateral.

Covered loans averaged $202.7 million in the second quarter of 2015, and decreased $89.9 million, or 31%, when compared to the average balance in the same period of 2014 and decreased $11.5 million, or 22% annualized, when compared to quarter ended March 31, 2015. Covered loans represent loans acquired through the nine FDIC-assisted transactions, all of which occurred prior to 2013. These loans are subject to loss sharing agreements with the FDIC. The FDIC has agreed to reimburse the Company for 80% of losses incurred on the purchased loans, foreclosed real estate, and certain other assets. The Company expects the covered loan portfolio to continue to decrease as these acquired loans are paid-off. See Note 3 of the Consolidated Financial Statements presented under Item 1 of this report for a discussion of these acquisitions, including the aggregation of these loans by risk characteristics when determining the initial and subsequent fair value.

Funds that are not utilized for loan originations are used to purchase investment securities and short term money market investments, to sell as federal funds and to maintain in interest bearing deposits with banks. Average liquidity management assets accounted for 14% of total average earning assets in the second quarter of 2015 compared to 16% in the second quarter of 2014 and first quarter of 2015. Average liquidity management assets increased $101.2 million in the second quarter of 2015 compared to the same period in 2014, and decreased $159.7 million compared to the first quarter of 2015. The balances of these assets can fluctuate based on management’s ongoing effort to manage liquidity and for asset liability management purposes.

Other earning assets include brokerage customer receivables and trading account securities. In the normal course of business, Wayne Hummer Investments, LLC (“WHI”) activities involve the execution, settlement, and financing of various securities transactions. WHI’s customer securities activities are transacted on either a cash or margin basis. In margin transactions, WHI, under an agreement with an out-sourced securities firm, extends credit to its customers, subject to various regulatory and internal margin requirements, collateralized by cash and securities in customer’s accounts. In connection with these activities, WHI executes and the out-sourced firm clears customer transactions relating to the sale of securities not yet purchased, substantially all of which are transacted on a margin basis subject to individual exchange regulations. Such transactions may expose WHI to off-balance-sheet risk, particularly in volatile trading markets, in the event margin requirements are not sufficient to fully cover losses that customers may incur. In the event a customer fails to satisfy its obligations, WHI under the agreement with the outsourced securities firm, may be required to purchase or sell financial instruments at prevailing market prices to fulfill the customer’s obligations. WHI seeks to control the risks associated with its customers’ activities by requiring customers to maintain margin collateral in compliance with various regulatory and internal guidelines. WHI monitors required margin levels daily and, pursuant to such guidelines, requires customers to deposit additional collateral or to reduce positions when necessary.

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	Average Balances for the Six Months Ended
	June 30, 2015				June 30, 2014
(Dollars in thousands)	Balance		Percent		Balance		Percent
Loans:
Commercial	$	4,114,949	22	%	$	3,416,867	21	%
Commercial real estate	4,691,264		26	%	4,285,818		26	%
Home equity	714,176		4	%	711,165		4	%
Residential real estate (1)	867,899		5	%	682,870		4	%
Premium finance receivables	4,783,862		26	%	4,227,062		26	%
Other loans	161,906		1	%	171,741		1	%
Total loans, net of unearned income excluding covered loans (2)	$	15,334,056	84	%	$	13,495,523	82	%
Covered loans	208,405		1	%	309,127		2	%
Total average loans (2)	$	15,542,461	85	%	$	13,804,650	84	%
Liquidity management assets (3)	$	2,788,600	15	%	$	2,627,243	16	%
Other earning assets (4)	29,928		—	%	28,190		—	%
Total average earning assets	$	18,360,989	100	%	$	16,460,083	100	%
Total average assets	$	20,042,808			$	18,142,832
Total average earning assets to total average assets			92	%			91	%

(1) Includes mortgage loans held-for-sale

(2) Includes loans held-for-sale and non-accrual loans

(3) Liquidity management assets include available-for-sale securities, other securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements

(4) Other earning assets include brokerage customer receivables and trading account securities

Total average loans for the first six months of 2015 increased $1.7 billion or 13%, over the previous year period. Similar to

the quarterly discussion above, approximately $698.1 million of this increase relates to the commercial portfolio, $556.8 million of this increase relates to the premium finance receivables portfolio and $405.4 million of this increase relates to the commercial real estate portfolio. The increase is partially offset by a decrease of $100.7 million in covered loans.

Deposits

Total deposits at June 30, 2015 were $17.1 billion,an increase of $1.5 billion, or 10%, compared to total deposits at June 30, 2014. See Note 9 to the Consolidated Financial Statements presented under Item 1 of this report for a summary of period end deposit balances.

The following table sets forth, by category, the maturity of time certificates of deposit as of June 30, 2015:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of June 30, 2015 (Dollars in thousands)	CDARs & Brokered Certificates of Deposit (1)		MaxSafe Certificates of Deposit (1)		Variable Rate Certificates of Deposit (2)		Other Fixed Rate Certificates of Deposit (1)		Total Time Certificates of Deposits		Weighted-Average Rate of Maturing Time Certificates of Deposit (3)
1-3 months	$	36,934	$	82,699	$	155,178	$	638,089	$	912,900	0.60	%
4-6 months	2,176		63,095		—		525,567		590,838		0.66	%
7-9 months	—		25,024		—		508,782		533,806		0.76	%
10-12 months	36,503		20,922		—		433,959		491,384		0.66	%
13-18 months	165,613		23,708		—		559,339		748,660		0.94	%
19-24 months	43,300		7,468		—		275,589		326,357		1.02	%
24+ months	3,950		12,748		—		316,233		332,931		1.23	%
Total	$	288,476	$	235,664	$	155,178	$	3,257,558	$	3,936,876	0.79	%

(1) This category of certificates of deposit is shown by contractual maturity date.

(2) This category includes variable rate certificates of deposit and savings certificates with the majority repricing on at least a monthly basis.

(3) Weighted-average rate excludes the impact of purchase accounting fair value adjustments.

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The following table sets forth, by category, the composition of average deposit balances and the relative percentage of total average deposits for the periods presented:

	Three Months Ended
	June 30, 2015				March 31, 2015				June 30, 2014
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Non-interest bearing	$	3,725,728	21	%	$	3,584,452	21	%	$	2,880,501	20	%
NOW and interest bearing demand deposits	2,275,633		14		2,220,911		14		1,989,919		13
Wealth management deposits	1,500,580		9		1,287,880		8		1,244,757		8
Money market	3,801,315		23		3,726,151		23		3,500,186		23
Savings	1,533,151		9		1,537,283		9		1,438,264		9
Time certificates of deposit	4,004,774		24		4,091,282		25		4,111,318		27
Total average deposits	$	16,841,181	100	%	$	16,447,959	100	%	$	15,164,945	100	%

Total average deposits for the second quarter of 2015 were $16.8 billion, an increase of $1.7 billion, or 11%, from the second quarter of 2014. The increase in average deposits is primarily attributable to additional deposits associated with the Company's bank acquisitions as well as increased commercial lending relationships. The Company continues to see a beneficial shift in its deposit mix as average non-interest bearing deposits increased $845.2 million, or 29%, in the second quarter of 2015 compared to the second quarter of 2014.

Wealth management deposits are funds from the brokerage customers of WHI, the trust and asset management customers of CTC and brokerage customers from unaffiliated companies which have been placed into deposit accounts of the banks (“wealth management deposits” in the table above). Wealth Management deposits consist primarily of money market accounts. Consistent with reasonable interest rate risk parameters, these funds have generally been invested in loan production of the banks as well as other investments suitable for banks.

Brokered Deposits

While the Company obtains a portion of its total deposits through brokered deposits, the Company does so primarily as an asset-liability management tool to assist in the management of interest rate risk. The Company does not consider brokered deposits to be a vital component of its current liquidity resources. Historically, brokered deposits have represented a small component of the Company’s total deposits outstanding, as set forth in the table below:

	June 30,						December 31,
(Dollars in thousands)	2015			2014			2014			2013			2012
Total deposits	$	17,082,418		$	15,556,376		$	16,281,844		$	14,668,789		$	14,428,544
Brokered deposits	879,673			876,201			718,986			476,139			787,812
Brokered deposits as a percentage of total deposits	5.1		%	5.6		%	4.4		%	3.2		%	5.5		%

Brokered deposits include certificates of deposit obtained through deposit brokers, deposits received through the Certificate of Deposit Account Registry Program (“CDARS”), and wealth management deposits of brokerage customers from unaffiliated companies which have been placed into deposit accounts of the banks.

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Other Funding Sources

Although deposits are the Company’s primary source of funding its interest-earning assets, the Company’s ability to manage the types and terms of deposits is somewhat limited by customer preferences and market competition. As a result, in addition to deposits and the issuance of equity securities and the retention of earnings, the Company uses several other funding sources to support its growth. These sources include short-term borrowings, notes payable, Federal Home Loan Bank advances, subordinated debt, secured borrowings and junior subordinated debentures. The Company evaluates the terms and unique characteristics of each source, as well as its asset-liability management position, in determining the use of such funding sources.

The following table sets forth, by category, the composition of the average balances of other funding sources for the quarterly periods presented:

	Three Months Ended
	June 30,		March 31,		June 30,
(Dollars in thousands)	2015		2015		2014
Federal Home Loan Bank advances	$	347,656	$	357,532	$	446,778
Other borrowings:
Notes payable	13,187		—		180
Federal funds purchased	873		1,639		2,795
Securities sold under repurchase agreements	39,950		52,281		125,995
Secured borrowings	121,018		122,299		—
Other	18,632		18,775		19,165
Total other borrowings	$	193,660	$	194,994	$	148,135
Subordinated notes	140,000		140,000		27,692
Junior subordinated debentures	249,493		249,493		249,493
Total other funding sources	$	930,809	$	942,019	$	872,098

FHLB advances provide the banks with access to fixed rate funds which are useful in mitigating interest rate risk and achieving an acceptable interest rate spread on fixed rate loans or securities. Additionally, the banks have the ability to borrow shorter-term, overnight funding from the FHLB for other general purposes. These FHLB advances to the banks totaled $444.0 million at June 30, 2015, compared to $416.0 million at March 31, 2015 and $580.6 million at June 30, 2014.

Other borrowings include notes payables, federal funds purchased, securities sold under repurchase agreements, the Canadian secured borrowing transaction completed in December 2014 and a fixed-rate promissory note entered into in August 2012 related to an office building complex owned by the Company. These borrowings totaled $261.9 million, $187.0 million and $43.7 million at June 30, 2015, March 31, 2015 and June 30, 2014, respectively.

Notes payable balances represent the balances on separate loan agreements with unaffiliated banks and an unsecured promissory note as a result of the Great Lakes Advisors acquisition. The separate loan agreements with unaffiliated banks included a $100.0 million revolving credit facility that was replaced in 2014 by a separate $150 million loan agreement with unaffiliated banks consisting of a $75.0 million revolving credit facility and a $75.0 million term facility. Both loan facilities are available for corporate purposes such as to provide capital to fund continued growth at existing bank subsidiaries, possible future acquisitions and for other general corporate matters. At June 30, 2015, the Company had an outstanding balance of $75.0 million compared to no outstanding balance at March 31, 2015 under the term facility. The Company was required to borrow the entire amount of the term facility on June 15, 2015 and all such borrowings must be repaid by June 15, 2020. At June 30, 2015 and March 31, 2015, the Company had no outstanding balance on the $75.0 million revolving credit facility. The Company had no outstanding balance on the unsecured promissory note at June 30, 2015, March 31, 2015, and June 30, 2014 after the remaining balance was paid-off in the second quarter of 2014.

Securities sold under repurchase agreements represent sweep accounts for certain customers in connection with master repurchase agreements at the banks as well as short-term borrowings from banks and brokers. These borrowings totaled $48.3 million, $50.1 million, and $24.6 million at June 30, 2015, March 31, 2015 and June 30, 2014, respectively. This funding category typically fluctuates based on customer preferences and daily liquidity needs of the banks, their customers and the banks’ operating subsidiaries.

The average balance of secured borrowings represents a third party Canadian transaction in 2014 ("Canadian Secured Borrowing"). Under the Canadian Secured Borrowing, in December 2014, the Company, through its subsidiary, FIFC Canada, sold an undivided

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co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for a cash payment of approximately C$150 million pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). The proceeds received from the transaction are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party and translated to the Company’s reporting currency as of the respective date. The translated balance of the Canadian Secured Borrowing under the Receivables Purchase Agreement totaled $120.1 million at June 30, 2015 compared to $118.2 million at March 31, 2015. At June 30, 2015, the interest rate of the Canadian Secured Borrowing was 1.4928%.

Other borrowings include a fixed-rate promissory note entered into in August 2012 related to an office building complex owned by the Company. At June 30, 2015, the fixed-rate promissory note had an outstanding balance of $18.6 million compared to $18.7 million at March 31, 2015 and $19.1 million at June 30, 2014.

At June 30, 2015, March 31, 2015, and June 30, 2014, subordinated notes totaled $140.0 million. In the second quarter of 2014, the Company issued $140.0 million of subordinated notes receiving $139.1 million in net proceeds. The notes have a stated interest rate of 5.00% and mature in June 2024.

The Company had $249.5 million of junior subordinated debentures outstanding as of June 30, 2015, March 31, 2015 and June 30, 2014. The amounts reflected on the balance sheet represent the junior subordinated debentures issued to nine trusts by the Company and equal the amount of the preferred and common securities issued by the trusts. At December 31, 2014, junior subordinated debentures, subject to certain limitations, qualified as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations could, subject to other restrictions, be included in Tier 2 capital. Starting on January 1, 2015, a portion of these junior subordinated debentures, subject to certain limitations, still qualify as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations could, subject to other restrictions, be included in Tier 2 capital, but the Company will remain well-capitalized. At June 30, 2015, $60.5 million and $181.5 million of the junior subordinated debentures, net of common securities, were included in the Company's Tier 1 and Tier 2 regulatory capital, respectively. Starting on January 1, 2016, these junior subordinated debentures no longer qualify as Tier 1 regulatory capital of the Company, however, subject to other restrictions, could be included in Tier 2 capital. Interest expense on these debentures is deductible for tax purposes, resulting in a cost-efficient form of regulatory capital.

See Notes 10 and 11 of the Consolidated Financial Statements presented under Item 1 of this report for details of period end balances and other information for these various funding sources.

Shareholders’ Equity

Total shareholders’ equity was $2.3 billion at June 30, 2015, reflecting an increase of $266.7 million since June 30, 2014 and $195.2 million since December 31, 2014. The increase from December 31, 2014 was the result of $121.2 million from the issuance of Series D preferred stock, net of costs, net income of $82.9 million, $19.2 million from the issuance of shares of the Company's common stock related to the acquisition of Delavan, $5.3 million credited to surplus for stock-based compensation costs and $4.8 million from the issuance of shares of the Company’s common stock (and related tax benefit) pursuant to various stock compensation plans, net of treasury shares, partially offset by $16.8 million in net unrealized losses from available-for-sale securities, net of tax, common stock dividends of $10.4 million, $7.5 million of foreign currency translation adjustments, net of tax, preferred stock dividends of $3.2 million and $210,000 of net unrealized losses from cash flow hedges, net of tax.

The following tables reflect various consolidated measures of capital as of the dates presented and the capital guidelines established by the Federal Reserve Bank for a bank holding company:

	June 30, 2015		March 31, 2015		June 30, 2014
Leverage ratio	9.8	%	9.2	%	10.5	%
Tier 1 capital to risk-weighted assets	10.7		10.1		11.7
Common equity Tier 1 capital to risk-weighted assets	9.0		9.1		N/A
Total capital to risk-weighted assets	13.1		12.5		13.2
Total average equity-to-total average assets(1)	10.6		10.7		10.8

(1) Based on quarterly average balances.

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	Minimum Capital Requirements		Well Capitalized
Leverage ratio	4.0	%	5.0	%
Tier 1 capital to risk-weighted assets	6.0		8.0
Common equity Tier 1 capital to risk-weighted assets	4.5		6.5
Total capital to risk-weighted assets	8.0		10.0

The Company’s principal sources of funds at the holding company level are dividends from its subsidiaries, borrowings under its loan agreement with unaffiliated banks and proceeds from the issuances of subordinated debt and additional equity. Refer to Notes 10, 11 and 16 of the Consolidated Financial Statements presented under Item 1 of this report for further information on these various funding sources. Management is committed to maintaining the Company’s capital levels above the “Well Capitalized” levels established by the Federal Reserve for bank holding companies.

The Company’s Board of Directors approves dividends from time to time, however, the ability to declare a dividend is limited by the Company's financial condition, the terms of the Company's 5.00% non-cumulative perpetual convertible preferred stock, Series C, the terms of the Company's fixed-to-floating rate non-cumulative perpetual preferred stock, Series D, the terms of the Company’s Trust Preferred Securities offerings and under certain financial covenants in the Company’s revolving and term facilities. In January, April and July of 2015, the Company declared a quarterly cash dividend of $0.11 per common share. In January, April, July and October of 2014, the Company declared a quarterly cash dividend of $0.10 per common share.

See Note 16 of the Consolidated Financial Statements presented under Item 1 of this report for details on the Company’s issuance of Series D and Series C preferred stock in June 2015 and March 2012, respectively.

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LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio

The following table shows the Company’s loan portfolio by category as of the dates shown:

	June 30, 2015				December 31, 2014				June 30, 2014
			% of				% of				% of
(Dollars in thousands)	Amount		Total		Amount		Total		Amount		Total
Commercial	$	4,330,344	27	%	$	3,924,394	26	%	$	3,640,430	26	%
Commercial real estate	4,850,590		31		4,505,753		31		4,353,472		31
Home equity	712,350		5		716,293		5		713,642		5
Residential real estate	503,015		3		483,542		3		451,905		3
Premium finance receivables—commercial	2,460,408		16		2,350,833		16		2,378,529		17
Premium finance receivables—life insurance	2,537,475		16		2,277,571		16		2,051,645		15
Consumer and other	119,468		1		151,012		1		160,373		1
Total loans, net of unearned income, excluding covered loans	$	15,513,650	99	%	$	14,409,398	98	%	$	13,749,996	98	%
Covered loans	193,410		1		226,709		2		275,154		2
Total loans	$	15,707,060	100	%	$	14,636,107	100	%	$	14,025,150	100	%

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Commercial and commercial real estate loans. Our commercial and commercial real estate loan portfolios are comprised primarily of commercial real estate loans and lines of credit for working capital purposes. The table below sets forth information regarding the types, amounts and performance of our loans within these portfolios (excluding covered loans) as of June 30, 2015 and 2014:

As of June 30, 2015			% of				> 90 Days Past Due		Allowance For Loan
			Total				and Still		Losses
(Dollars in thousands)	Balance		Balance		Nonaccrual		Accruing		Allocation
Commercial:
Commercial and industrial	$	2,534,459	27.6	%	$	4,424	$	—	$	21,693
Franchise	228,599		2.5		905		—		1,852
Mortgage warehouse lines of credit	213,797		2.3		—		—		1,571
Community Advantage—homeowner associations	114,883		1.3		—		—		3
Aircraft	6,831		0.1		—		—		9
Asset-based lending	832,455		9.1		—		—		6,382
Tax exempt	199,185		2.2		—		—		1,186
Leases	187,630		2.0		65		—		166
Other	2,772		—		—		—		20
PCI - commercial loans (1)	9,733		0.1		—		474		18
Total commercial	$	4,330,344	47.2	%	$	5,394	$	474	$	32,900
Commercial Real Estate:
Residential construction	$	57,602	0.6	%	$	—	$	—	$	687
Commercial construction	249,543		2.7		19		—		2,656
Land	87,837		1.0		2,035		—		2,513
Office	754,817		8.2		6,360		701		7,133
Industrial	627,407		6.8		2,568		—		4,526
Retail	749,991		8.2		2,352		—		5,003
Multi-family	668,448		7.3		1,730		—		7,172
Mixed use and other	1,592,122		17.3		8,119		—		12,173
PCI - commercial real estate (1)	62,823		0.7		—		15,646		335
Total commercial real estate	$	4,850,590	52.8	%	$	23,183	$	16,347	$	42,198
Total commercial and commercial real estate	$	9,180,934	100.0	%	$	28,577	$	16,821	$	75,098
Commercial real estate—collateral location by state:
Illinois	$	3,874,674	79.9	%
Wisconsin	571,625		11.8
Total primary markets	$	4,446,299	91.7	%
Florida	58,820		1.2
Arizona	19,636		0.4
Indiana	88,575		1.8
Other (no individual state greater than 0.8%)	237,260		4.9
Total	$	4,850,590	100.0	%

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

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			% of				> 90 Days Past Due		Allowance For Loan
As of June 30, 2014			Total				and Still		Losses
(Dollars in thousands)	Balance		Balance		Nonaccrual		Accruing		Allocation
Commercial:
Commercial and industrial	$	2,012,480	25.2	%	$	6,216	$	—	$	16,237
Franchise	223,456		2.8		—		—		1,888
Mortgage warehouse lines of credit	148,211		1.9		—		—		1,229
Community Advantage—homeowner associations	94,009		1.2		—		—		—
Aircraft	7,847		0.1		—		—		10
Asset-based lending	778,344		9.7		295		—		5,562
Tax exempt	208,913		2.6		—		—		1,017
Leases	144,435		1.8		—		—		6
Other	9,792		0.1		—		—		78
PCI - commercial loans (1)	12,943		0.2		—		1,452		11
Total commercial	$	3,640,430	45.6	%	$	6,511	$	1,452	$	26,038
Commercial Real Estate:
Residential construction	$	29,959	0.4	%	$	—	$	—	$	500
Commercial construction	155,059		1.9		839		—		2,184
Land	105,927		1.3		2,367		—		3,084
Office	667,917		8.4		10,950		—		7,442
Industrial	617,640		7.7		5,097		—		4,577
Retail	697,095		8.7		6,909		—		6,467
Multi-family	636,169		8.0		689		—		4,302
Mixed use and other	1,378,439		17.2		9,470		309		12,146
PCI - commercial real estate (1)	65,267		0.8		—		15,682		—
Total commercial real estate	$	4,353,472	54.4	%	$	36,321	$	15,991	$	40,702
Total commercial and commercial real estate	$	7,993,902	100.0	%	$	42,832	$	17,443	$	66,740
Commercial real estate—collateral location by state:
Illinois	$	3,661,706	84.1	%
Wisconsin	374,486		8.6
Total primary markets	$	4,036,192	92.7	%
Florida	64,473		1.5
Arizona	15,330		0.4
Indiana	93,708		2.2
Other (no individual state greater than 0.5%)	143,769		3.2
Total	$	4,353,472	100.0	%

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

We make commercial loans for many purposes, including working capital lines, which are generally renewable annually and supported by business assets, personal guarantees and additional collateral. Commercial business lending is generally considered to involve a slightly higher degree of risk than traditional consumer bank lending. Primarily as a result of growth in the commercial portfolio, our allowance for loan losses in our commercial loan portfolio is $32.9 million as of June 30, 2015 compared to $26.0 million as of June 30, 2014.

Our commercial real estate loans are generally secured by a first mortgage lien and assignment of rents on the property. Since most of our bank branches are located in the Chicago metropolitan area and southern Wisconsin, 91.7% of our commercial real estate loan portfolio is located in this region. While commercial real estate market conditions have improved recently, a number

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of specific markets continue to be under stress. We have been able to effectively manage and reduce our total non-performing commercial real estate loans. As of June 30, 2015, our allowance for loan losses related to this portfolio is $42.2 million compared to $40.7 million as of June 30, 2014.

The Company also participates in mortgage warehouse lending by providing interim funding to unaffiliated mortgage bankers to finance residential mortgages originated by such bankers for sale into the secondary market. The Company’s loans to the mortgage bankers are secured by the business assets of the mortgage companies as well as the specific mortgage loans funded by the Company, after they have been pre-approved for purchase by third party end lenders. The Company may also provide interim financing for packages of mortgage loans on a bulk basis in circumstances where the mortgage bankers desire to competitively bid on a number of mortgages for sale as a package in the secondary market. Amounts advanced with respect to any particular mortgage loan are usually required to be repaid within 21 days. In the current period, mortgage warehouse lines increased to $213.8 million as of June 30, 2015 from $148.2 million as of June 30, 2014 as a result of a more favorable mortgage banking environment.

Home equity loans. Our home equity loans and lines of credit are originated by each of our banks in their local markets where we have a strong understanding of the underlying real estate value. Our banks monitor and manage these loans, and we conduct an automated review of all home equity loans and lines of credit at least twice per year. This review collects current credit performance for each home equity borrower and identifies situations where the credit strength of the borrower is declining, or where there are events that may influence repayment, such as tax liens or judgments. Our banks use this information to manage loans that may be higher risk and to determine whether to obtain additional credit information or updated property valuations. As a result of this work and general market conditions, we have modified our home equity offerings and changed our policies regarding home equity renewals and requests for subordination. In a limited number of situations, the unused availability on home equity lines of credit was frozen.

The rates we offer on new home equity lending are based on several factors, including appraisals and valuation due diligence, in order to reflect inherent risk, and we place additional scrutiny on larger home equity requests. In a limited number of cases, we issue home equity credit together with first mortgage financing, and requests for such financing are evaluated on a combined basis. It is not our practice to advance more than 85% of the appraised value of the underlying asset, which ratio we refer to as the loan-to-value ratio, or LTV ratio, and a majority of the credit we previously extended, when issued, had an LTV ratio of less than 80%.

Our home equity loan portfolio has performed well in light of the ongoing volatility in the overall residential real estate market. The number of new home equity line of credit commitments originated by us has decreased due to declines in housing valuations that have decreased the amount of equity against which homeowners may borrow and the refinancing of these loans into long-term fixed-rate residential real estate loans.

Residential real estate mortgages. Our residential real estate portfolio predominantly includes one- to four-family adjustable rate mortgages that have repricing terms generally from one to three years, construction loans to individuals and bridge financing loans for qualifying customers. As of June 30, 2015, our residential loan portfolio totaled $503.0 million, or 3% of our total outstanding loans.

Our adjustable rate mortgages relate to properties located principally in the Chicago metropolitan area and southern Wisconsin or vacation homes owned by local residents. These adjustable rate mortgages are often non-agency conforming. Adjustable rate mortgage loans decrease the interest rate risk we face on our mortgage portfolio. However, this risk is not eliminated due to the fact that such loans generally provide for periodic and lifetime limits on the interest rate adjustments among other features. Additionally, adjustable rate mortgages may pose a higher risk of delinquency and default because they require borrowers to make larger payments when interest rates rise. As of June 30, 2015, $16.6 million of our residential real estate mortgages, or 3.3% of our residential real estate loan portfolio, excluding PCI loans, were classified as nonaccrual, $3.6 million were 30 to 89 days past due (0.7%) and $480.4 million were current (96.0%). We believe that since our loan portfolio consists primarily of locally originated loans, and since the majority of our borrowers are longer-term customers with lower LTV ratios, we face a relatively low risk of borrower default and delinquency.

While we generally do not originate loans for our own portfolio with long-term fixed rates due to interest rate risk considerations, we can accommodate customer requests for fixed rate loans by originating such loans and then selling them into the secondary market, for which we receive fee income. We may also selectively retain certain of these loans within the banks’ own portfolios where they are non-agency conforming, or where the terms of the loans make them favorable to retain. A portion of the loans we sold into the secondary market were sold with the servicing of those loans retained. The amount of loans serviced for others as of June 30, 2015 and 2014 was $820.5 million and $926.7 million, respectively. All other mortgage loans sold into the secondary market were sold without the retention of servicing rights.

It is not our current practice to underwrite, and we have no plans to underwrite, subprime, Alt A, no or little documentation loans, or option ARM loans. As of June 30, 2015, approximately $7.4 million of our mortgage loans consist of interest-only loans.

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Premium finance receivables – commercial. FIFC and FIFC Canada originated approximately $1.5 billion in commercial insurance premium finance receivables during the second quarter of 2015 compared to $1.4 billion during the same quarter of the prior year. During the six months ended June 30, 2015 and 2014, FIFC and FIFC Canada originated approximately $2.9 billion and $2.8 billion, respectively, in commercial insurance premium finance receivables. FIFC and FIFC Canada make loans to businesses to finance the insurance premiums they pay on their commercial insurance policies. The loans are originated by working through independent medium and large insurance agents and brokers located throughout the United States and Canada. The insurance premiums financed are primarily for commercial customers’ purchases of liability, property and casualty and other commercial insurance.

This lending involves relatively rapid turnover of the loan portfolio and high volume of loan originations. Because of the indirect nature of this lending through third party agents and brokers and because the borrowers are located nationwide and in Canada, this segment is more susceptible to third party fraud than relationship lending. The Company performs ongoing credit and other reviews of the agents and brokers, and performs various internal audit steps to mitigate against the risk of any fraud. The majority of these loans are purchased by the banks in order to more fully utilize their lending capacity as these loans generally provide the banks with higher yields than alternative investments.

Premium finance receivables—life insurance. FIFC originated approximately $221.7 million in life insurance premium finance receivables in the second quarter of 2015 as compared to$162.0 million of originations in the second quarter of 2014. For the six months ended June 30, 2015 and 2014, FIFC originated approximately $389.3 million and $275.6 million, respectively, in life insurance premium finance receivables. The Company continues to experience increased competition and pricing pressure within the current market. These loans are originated directly with the borrowers with assistance from life insurance carriers, independent insurance agents, financial advisors and legal counsel. The life insurance policy is the primary form of collateral. In addition, these loans often are secured with a letter of credit, marketable securities or certificates of deposit. In some cases, FIFC may make a loan that has a partially unsecured position.

Consumer and other. Included in the consumer and other loan category is a wide variety of personal and consumer loans to individuals as well as high yielding short-term accounts receivable financing to clients in the temporary staffing industry located throughout the United States. The Banks originate consumer loans in order to provide a wider range of financial services to their customers.

Consumer loans generally have shorter terms and higher interest rates than mortgage loans but generally involve more credit risk than mortgage loans due to the type and nature of the collateral. Additionally, short-term accounts receivable financing may also involve greater credit risks than generally associated with the loan portfolios of more traditional community banks depending on the marketability of the collateral.

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Maturities and Sensitivities of Loans to Changes in Interest Rates

The following table classifies the commercial loan portfolios at June 30, 2015 by date at which the loans reprice or mature, and the type of rate exposure:

As of June 30, 2015	One year or less		From one to five years		Over five years
(Dollars in thousands)							Total
Commercial
Fixed rate	$	80,756	$	483,461	$	207,124	$	771,341
Variable rate
With floor feature	661,242		4,986		—		666,228
Without floor feature	2,886,538		6,237		—		2,892,775
Total commercial	3,628,536		494,684		207,124		4,330,344
Commercial real estate
Fixed rate	$	344,569	$	1,467,391	$	174,827	$	1,986,787
Variable rate
With floor feature	297,154		8,227		—		305,381
Without floor feature	2,521,925		35,875		622		2,558,422
Total commercial real estate	3,163,648		1,511,493		175,449		4,850,590
Premium finance receivables, net of unearned income
Fixed rate	2,503,841		65,498		379		2,569,718
Variable rate
With floor feature	—		—		—		—
Without floor feature	2,428,165		—		—		2,428,165
Total premium finance receivables (1)	4,932,006		65,498		379		4,997,883

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Past Due Loans and Non-Performing Assets

Our ability to manage credit risk depends in large part on our ability to properly identify and manage problem loans. To do so, the Company operates a credit risk rating system under which our credit management personnel assign a credit risk rating to each loan at the time of origination and review loans on a regular basis to determine each loan’s credit risk rating on a scale of 1 through 10 with higher scores indicating higher risk. The credit risk rating structure used is shown below:

1 Rating —	Minimal Risk (Loss Potential – none or extremely low) (Superior asset quality, excellent liquidity, minimal leverage)
2 Rating —	Modest Risk (Loss Potential demonstrably low) (Very good asset quality and liquidity, strong leverage capacity)
3 Rating —	Average Risk (Loss Potential low but no longer refutable) (Mostly satisfactory asset quality and liquidity, good leverage capacity)
4 Rating —	Above Average Risk (Loss Potential variable, but some potential for deterioration) (Acceptable asset quality, little excess liquidity, modest leverage capacity)
5 Rating —	Management Attention Risk (Loss Potential moderate if corrective action not taken) (Generally acceptable asset quality, somewhat strained liquidity, minimal leverage capacity)
6 Rating —	Special Mention (Loss Potential moderate if corrective action not taken) (Assets in this category are currently protected, potentially weak, but not to the point of substandard classification)
7 Rating —	Substandard Accrual (Loss Potential distinct possibility that the bank may sustain some loss, but no discernable impairment) (Must have well defined weaknesses that jeopardize the liquidation of the debt)
8 Rating —	Substandard Non-accrual (Loss Potential well documented probability of loss, including potential impairment) (Must have well defined weaknesses that jeopardize the liquidation of the debt)
9 Rating —	Doubtful (Loss Potential extremely high) (These assets have all the weaknesses in those classified “substandard” with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of current existing facts, conditions, and values, highly improbable)
10 Rating —	Loss (fully charged-off) (Loans in this category are considered fully uncollectible.)

Each loan officer is responsible for monitoring his or her loan portfolio, recommending a credit risk rating for each loan in his or her portfolio and ensuring the credit risk ratings are appropriate. These credit risk ratings are then ratified by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including, a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. A third party loan review firm independently reviews a significant portion of the loan portfolio at each of the Company’s subsidiary banks to evaluate the appropriateness of the management-assigned credit risk ratings. These ratings are subject to further review at each of our bank subsidiaries by the applicable regulatory authority, including the Federal Reserve Bank of Chicago, the Office of the Comptroller of the Currency, the State of Illinois and the State of Wisconsin and are also reviewed by our internal audit staff.

The Company’s problem loan reporting system automatically includes all loans with credit risk ratings of 6 through 9. This system is designed to provide an on-going detailed tracking mechanism for each problem loan. Once management determines that a loan has deteriorated to a point where it has a credit risk rating of 6 or worse, the Company’s Managed Asset Division performs an overall credit and collateral review. As part of this review, all underlying collateral is identified and the valuation methodology is analyzed and tracked. As a result of this initial review by the Company’s Managed Asset Division, the credit risk rating is reviewed and a portion of the outstanding loan balance may be deemed uncollectible or an impairment reserve may be established. The Company’s impairment analysis utilizes an independent re-appraisal of the collateral (unless such a third-party evaluation is not possible due to the unique nature of the collateral, such as a closely-held business or thinly traded securities). In the case of commercial real estate collateral, an independent third party appraisal is ordered by the Company’s Real Estate Services Group to determine if there has been any change in the underlying collateral value. These independent appraisals are reviewed by the Real Estate Services Group and sometimes by independent third party valuation experts and may be adjusted depending upon market conditions. An appraisal is ordered at least once a year for these loans, or more often if market conditions dictate. In the event that the underlying value of the collateral cannot be easily determined, a detailed valuation methodology is prepared by the Managed Asset Division. A summary of this analysis is provided to the directors’ loan committee of the bank which originated the credit for approval of a charge-off, if necessary.

Through the credit risk rating process, loans are reviewed to determine if they are performing in accordance with the original contractual terms. If the borrower has failed to comply with the original contractual terms, further action may be required by the

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Company, including a downgrade in the credit risk rating, movement to non-accrual status, a charge-off or the establishment of a specific impairment reserve. In the event a collateral shortfall is identified during the credit review process, the Company will work with the borrower for a principal reduction and/or a pledge of additional collateral and/or additional guarantees. In the event that these options are not available, the loan may be subject to a downgrade of the credit risk rating. If we determine that a loan amount or portion thereof, is uncollectible the loan’s credit risk rating is immediately downgraded to an 8 or 9 and the uncollectible amount is charged-off. Any loan that has a partial charge-off continues to be assigned a credit risk rating of an 8 or 9 for the duration of time that a balance remains outstanding. The Managed Asset Division undertakes a thorough and ongoing analysis to determine if additional impairment and/or charge-offs are appropriate and to begin a workout plan for the credit to minimize actual losses.

The Company’s approach to workout plans and restructuring loans is built on the credit-risk rating process. A modification of a loan with an existing credit risk rating of 6 or worse or a modification of any other credit, which will result in a restructured credit risk rating of 6 or worse must be reviewed for TDR classification. In that event, our Managed Assets Division conducts an overall credit and collateral review. A modification of a loan is considered to be a TDR if both (1) the borrower is experiencing financial difficulty and (2) for economic or legal reasons, the bank grants a concession to a borrower that it would not otherwise consider. The modification of a loan where the credit risk rating is 5 or better both before and after such modification is not considered to be a TDR. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is 5 or better are not experiencing financial difficulties and therefore, are not considered TDRs.

TDRs, which are by definition considered impaired loans, are reviewed at the time of modification and on a quarterly basis to determine if a specific reserve is needed. The carrying amount of the loan is compared to the expected payments to be received, discounted at the loan’s original rate, or for collateral dependent loans, to the fair value of the collateral less the estimated cost to sell. Any shortfall is recorded as a specific reserve.

For non-TDR loans, if based on current information and events, it is probable that the Company will be unable to collect all amounts due to it according to the contractual terms of the loan agreement, a loan is considered impaired, and a specific impairment reserve analysis is performed and if necessary, a specific reserve is established. In determining the appropriate reserve for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

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Non-performing Assets, excluding covered assets

The following table sets forth Wintrust’s non-performing assets and TDRs performing under the contractual terms of the loan agreement, excluding covered assets and PCI loans, as of the dates shown:

(Dollars in thousands)	June 30, 2015			March 31, 2015			December 31, 2014			June 30, 2014
Loans past due greater than 90 days and still accruing (1):
Commercial	$	—		$	—		$	474		$	—
Commercial real estate	701			—			—			309
Home equity	—			—			—			—
Residential real estate	—			—			—			—
Premium finance receivables—commercial	9,053			8,062			7,665			10,275
Premium finance receivables—life insurance	351			—			—			649
Consumer and other	110			91			119			73
Total loans past due greater than 90 days and still accruing	10,215			8,153			8,258			11,306
Non-accrual loans (2):
Commercial	5,394			5,586			9,157			6,511
Commercial real estate	23,183			29,982			26,605			36,321
Home equity	5,695			7,665			6,174			5,804
Residential real estate	16,631			14,248			15,502			15,294
Premium finance receivables—commercial	15,156			15,902			12,705			12,298
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	280			236			277			1,116
Total non-accrual loans	66,339			73,619			70,420			77,344
Total non-performing loans:
Commercial	5,394			5,586			9,631			6,511
Commercial real estate	23,884			29,982			26,605			36,630
Home equity	5,695			7,665			6,174			5,804
Residential real estate	16,631			14,248			15,502			15,294
Premium finance receivables—commercial	24,209			23,964			20,370			22,573
Premium finance receivables—life insurance	351			—			—			649
Consumer and other	390			327			395			1,189
Total non-performing loans	$	76,554		$	81,772		$	78,677		$	88,650
Other real estate owned	33,044			33,131			36,419			51,673
Other real estate owned—from acquisitions	9,036			9,126			9,223			7,915
Other repossessed assets	231			259			303			311
Total non-performing assets	$	118,865		$	124,288		$	124,622		$	148,549
TDRs performing under the contractual terms of the loan agreement	52,174			54,687			69,697			72,199
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial	0.12		%	0.13		%	0.25		%	0.18		%
Commercial real estate	0.49			0.64			0.59			0.84
Home equity	0.80			1.08			0.86			0.81
Residential real estate	3.31			2.87			3.21			3.38
Premium finance receivables—commercial	0.98			1.03			0.87			0.95
Premium finance receivables—life insurance	0.01			—			—			0.03
Consumer and other	0.33			0.25			0.26			0.74
Total non-performing loans	0.49		%	0.55		%	0.55		%	0.64		%
Total non-performing assets, as a percentage of total assets	0.57		%	0.61		%	0.62		%	0.79		%
Allowance for loan losses as a percentage of total non-performing loans	130.89		%	115.50		%	116.56		%	104.06		%

(1) As of the dates shown, no TDRs were past due greater than 90 days and still accruing interest.

(2) Non-accrual loans included TDRs totaling $10.6 million, $12.5 million, $12.6 million and $15.9 million as of June 30, 2015, March 31, 2015, December 31, 2014 and June 30, 2014, respectively.

89

Non-performing Commercial and Commercial Real Estate

Commercial non-performing loans totaled $5.4 million as of June 30, 2015 compared to $9.6 million as of December 31, 2014 and $6.5 million as of June 30, 2014. Commercial real estate non-performing loans totaled $23.9 million as of June 30, 2015 compared to $26.6 million as of December 31, 2014 and $36.6 million as of June 30, 2014.

Management is pursuing the resolution of all credits in this category. At this time, management believes reserves are appropriate to absorb inherent losses that are expected upon the ultimate resolution of these credits.

Non-performing Residential Real Estate and Home Equity

Non-performing home equity and residential real estate loans totaled $22.3 million as of June 30, 2015. The balance remained relatively unchanged compared to $21.7 million and $21.1 million at December 31, 2014 and June 30, 2014. The June 30, 2015 non-performing balance is comprised of $16.6 million of residential real estate (74 individual credits) and $5.7 million of home equity loans (35 individual credits). On average, this is approximately 7 non-performing residential real estate loans and home equity loans per chartered bank within the Company. The Company believes control and resolution of these loans is very manageable. At this time, management believes reserves are adequate to absorb inherent losses that are expected upon the ultimate resolution of these credits.

Non-performing Commercial Premium Finance Receivables

The table below presents the level of non-performing property and casualty premium finance receivables as of June 30, 2015 and 2014, and the amount of net charge-offs for the quarters then ended.

(Dollars in thousands)	June 30, 2015			June 30, 2014
Non-performing premium finance receivables—commercial	$	24,209		$	22,573
- as a percent of premium finance receivables—commercial outstanding	0.98		%	0.95		%
Net charge-offs of premium finance receivables—commercial	$	1,068		$	1,180
- annualized as a percent of average premium finance receivables—commercial	0.18		%	0.20		%

Fluctuations in this category may occur due to timing and nature of account collections from insurance carriers. The Company’s underwriting standards, regardless of the condition of the economy, have remained consistent. We anticipate that net charge-offs and non-performing asset levels in the near term will continue to be at levels that are within acceptable operating ranges for this category of loans. Management is comfortable with administering the collections at this level of non-performing property and casualty premium finance receivables and believes reserves are adequate to absorb inherent losses that may occur upon the ultimate resolution of these credits.

Due to the nature of collateral for commercial premium finance receivables, it customarily takes 60-150 days to convert the collateral into cash. Accordingly, the level of non-performing commercial premium finance receivables is not necessarily indicative of the loss inherent in the portfolio. In the event of default, Wintrust has the power to cancel the insurance policy and collect the unearned portion of the premium from the insurance carrier. In the event of cancellation, the cash returned in payment of the unearned premium by the insurer should generally be sufficient to cover the receivable balance, the interest and other charges due. Due to notification requirements and processing time by most insurance carriers, many receivables will become delinquent beyond 90 days while the insurer is processing the return of the unearned premium. Management continues to accrue interest until maturity as the unearned premium is ordinarily sufficient to pay-off the outstanding balance and contractual interest due.

90

Loan Portfolio Aging

The following table shows, as of June 30, 2015, only 0.6% of the entire portfolio, excluding covered loans, is non-accrual or greater than 90 days past due and still accruing interest with only 0.4% either one or two payments past due. In total, 99.0% of the Company’s total loan portfolio, excluding covered loans, as of June 30, 2015 is current according to the original contractual terms of the loan agreements.

The tables below show the aging of the Company’s loan portfolio at June 30, 2015 and March 31, 2015:

			90+ days		60-89		30-59
As of June 30, 2015			and still		days past		days past
(Dollars in thousands)	Nonaccrual		accruing		due		due		Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	4,424	$	—	$	1,846	$	6,027	$	2,522,162	$	2,534,459
Franchise	905		—		113		396		227,185		228,599
Mortgage warehouse lines of credit	—		—		—		—		213,797		213,797
Community Advantage—homeowners association	—		—		—		—		114,883		114,883
Aircraft	—		—		—		—		6,831		6,831
Asset-based lending	—		—		1,767		7,423		823,265		832,455
Tax exempt	—		—		—		—		199,185		199,185
Leases	65		—		—		—		187,565		187,630
Other	—		—		—		—		2,772		2,772
PCI - commercial (1)	—		474		—		233		9,026		9,733
Total commercial	5,394		474		3,726		14,079		4,306,671		4,330,344
Commercial real estate
Residential construction	—		—		—		4		57,598		57,602
Commercial construction	19		—		—		—		249,524		249,543
Land	2,035		—		1,123		2,399		82,280		87,837
Office	6,360		701		163		2,601		744,992		754,817
Industrial	2,568		—		18		484		624,337		627,407
Retail	2,352		—		896		2,458		744,285		749,991
Multi-family	1,730		—		933		223		665,562		668,448
Mixed use and other	8,119		—		2,405		3,752		1,577,846		1,592,122
PCI - commercial real estate (1)	—		15,646		3,490		2,798		40,889		62,823
Total commercial real estate	23,183		16,347		9,028		14,719		4,787,313		4,850,590
Home equity	5,695		—		511		3,365		702,779		712,350
Residential real estate	16,631		—		2,410		1,205		480,427		500,673
PCI - residential real estate (1)	—		264		84		—		1,994		2,342
Premium finance receivables
Commercial insurance loans	15,156		9,053		5,048		11,071		2,420,080		2,460,408
Life insurance loans	—		351		—		6,823		2,145,981		2,153,155
PCI - life insurance loans (1)	—		—		—		—		384,320		384,320
Consumer and other	280		110		196		919		117,963		119,468
Total loans, net of unearned income, excluding covered loans	$	66,339	$	26,599	$	21,003	$	52,181	$	15,347,528	$	15,513,650
Covered loans	6,353		10,030		1,333		1,720		173,974		193,410
Total loans, net of unearned income	$	72,692	$	36,629	$	22,336	$	53,901	$	15,521,502	$	15,707,060

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

91

Aging as a % of Loan Balance: As of June 30, 2015	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial and industrial	0.2	%	—	%	0.1	%	0.2	%	99.5	%	100.0	%
Franchise	0.4		—		—		0.2		99.4		100.0
Mortgage warehouse lines of credit	—		—		—		—		100.0		100.0
Community Advantage—homeowners association	—		—		—		—		100.0		100.0
Aircraft	—		—		—		—		100.0		100.0
Asset-based lending	—		—		0.2		0.9		98.9		100.0
Tax exempt	—		—		—		—		100.0		100.0
Leases	—		—		—		—		100.0		100.0
Other	—		—		—		—		100.0		100.0
PCI - commercial (1)	—		4.9		—		2.4		92.7		100.0
Total commercial	0.1		—		0.1		0.3		99.5		100.0
Commercial real estate
Residential construction	—		—		—		—		100.0		100.0
Commercial construction	—		—		—		—		100.0		100.0
Land	2.3		—		1.3		2.7		93.7		100.0
Office	0.8		0.1		—		0.3		98.8		100.0
Industrial	0.4		—		—		0.1		99.5		100.0
Retail	0.3		—		0.1		0.3		99.3		100.0
Multi-family	0.3		—		0.1		—		99.6		100.0
Mixed use and other	0.5		—		0.2		0.2		99.1		100.0
PCI - commercial real estate (1)	—		24.9		5.6		4.5		65.0		100.0
Total commercial real estate	0.5		0.3		0.2		0.3		98.7		100.0
Home equity	0.8		—		0.1		0.5		98.6		100.0
Residential real estate	3.3		—		0.5		0.2		96.0		100.0
PCI - residential real estate (1)	—		11.3		3.6		—		85.1		100.0
Premium finance receivables
Commercial insurance loans	0.6		0.5		0.2		0.4		98.3		100.0
Life insurance loans	—		—		—		0.3		99.7		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other	0.2		0.1		0.2		0.8		98.7		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.2	%	0.1	%	0.3	%	99.0	%	100.0	%
Covered loans	3.3		5.2		0.7		0.9		89.9		100.0
Total loans, net of unearned income	0.5	%	0.2	%	0.1	%	0.3	%	98.9	%	100.0	%

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

92

			90+ days		60-89		30-59
As of March 31, 2015			and still		days past		days past
(Dollars in thousands)	Nonaccrual		accruing		due		due		Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	5,586	$	—	$	4,756	$	16,949	$	2,457,174	$	2,484,465
Franchise	—		—		—		457		225,305		225,762
Mortgage warehouse lines of credit	—		—		—		—		186,372		186,372
Community Advantage - homeowners association	—		—		—		—		108,382		108,382
Aircraft	—		—		291		389		6,295		6,975
Asset-based lending	—		—		—		4,819		805,866		810,685
Municipal	—		—		—		—		205,195		205,195
Leases	—		—		65		517		171,432		172,014
Other	—		—		—		—		2,735		2,735
PCI - commercial (1)	—		612		—		—		8,735		9,347
Total commercial	5,586		612		5,112		23,131		4,177,491		4,211,932
Commercial real estate
Residential construction	—		—		—		—		46,796		46,796
Commercial construction	—		—		—		992		209,039		210,031
Land	2,646		—		—		1,942		84,454		89,042
Office	8,243		—		171		3,144		731,568		743,126
Industrial	3,496		—		61		1,719		599,050		604,326
Retail	4,975		—		—		2,562		734,990		742,527
Multi-family	1,750		—		393		3,671		649,589		655,403
Mixed use and other	8,872		—		808		10,847		1,532,036		1,552,563
PCI - commercial real estate (1)	—		18,120		4,639		3,242		40,671		66,672
Total commercial real estate	29,982		18,120		6,072		28,119		4,628,193		4,710,486
Home equity	7,665		—		693		2,825		698,100		709,283
Residential real estate	14,248		—		753		8,735		469,826		493,562
PCI - residential real estate (1)	—		266		—		84		2,013		2,363
Premium finance receivables
Commercial insurance loans	15,902		8,062		4,476		19,392		2,271,791		2,319,623
Life insurance loans	—		—		8,994		5,415		1,972,197		1,986,606
PCI - life insurance loans (1)	—		—		—		—		389,048		389,048
Consumer and other	236		91		111		634		129,084		130,156
Total loans, net of unearned income, excluding covered loans	$	73,619	$	27,151	$	26,211	$	88,335	$	14,737,743	$	14,953,059
Covered loans	7,079		16,434		558		6,128		179,495		209,694
Total loans, net of unearned income	$	80,698	$	43,585	$	26,769	$	94,463	$	14,917,238	$	15,162,753

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

93

Aging as a % of Loan Balance: As of March 31, 2015	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial and industrial	0.2	%	—	%	0.2	%	0.7	%	98.9	%	100.0	%
Franchise	—		—		—		0.2		99.8		100.0
Mortgage warehouse lines of credit	—		—		—		—		100.0		100.0
Community Advantage - homeowners association	—		—		—		—		100.0		100.0
Aircraft	—		—		4.2		5.6		90.2		100.0
Asset-based lending	—		—		—		0.6		99.4		100.0
Municipal	—		—		—		—		100.0		100.0
Leases	—		—		—		0.3		99.7		100.0
Other	—		—		—		—		100.0		100.0
PCI - commercial (1)	—		6.5		—		—		93.5		100.0
Total commercial	0.1		—		0.1		0.6		99.2		100.0
Commercial real estate
Residential construction	—		—		—		—		100.0		100.0
Commercial construction	—		—		—		0.5		99.5		100.0
Land	3.0		—		—		2.2		94.8		100.0
Office	1.1		—		—		0.4		98.5		100.0
Industrial	0.6		—		—		0.3		99.1		100.0
Retail	0.7		—		—		0.3		99.0		100.0
Multi-family	0.3		—		0.1		0.6		99.0		100.0
Mixed use and other	0.6		—		0.1		0.7		98.6		100.0
PCI - commercial real estate (1)	—		27.2		7.0		4.9		60.9		100.0
Total commercial real estate	0.6		0.4		0.1		0.6		98.3		100.0
Home equity	1.1		—		0.1		0.4		98.4		100.0
Residential real estate	2.9		—		0.2		1.8		95.1		100.0
PCI - residential real estate(1)	—		11.3		—		3.6		85.1		100.0
Premium finance receivables
Commercial insurance loans	0.7		0.4		0.2		0.8		97.9		100.0
Life insurance loans	—		—		0.5		0.3		99.2		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other	0.2		0.1		0.1		0.5		99.1		100.0
Total loans, net of unearned income, excluding covered loans	0.5	%	0.2	%	0.2	%	0.6	%	98.5	%	100.0	%
Covered loans	3.4		7.8		0.3		2.9		85.6		100.0
Total loans, net of unearned income	0.5	%	0.3	%	0.2	%	0.6	%	98.4	%	100.0	%

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

As of June 30, 2015, only $21.0 million of all loans, excluding covered loans, or 0.1%, were 60 to 89 days past due and $52.2 million or 0.3%, were 30 to 59 days (or one payment) past due. As of March 31, 2015, $26.2 million of all loans, excluding covered loans, or 0.2%, were 60 to 89 days past due and $88.3 million, or 0.6%, were 30 to 59 days (or one payment) past due. The majority of the commercial and commercial real estate loans shown as 60 to 89 days and 30 to 59 days past due are included on the Company’s internal problem loan reporting system. Loans on this system are closely monitored by management on a monthly basis. Commercial and commercial real estate loans with delinquencies from 30 to 89 days past-due decreased $20.9 million since March 31, 2015.

The Company's home equity and residential loan portfolios continue to exhibit low delinquency ratios. Home equity loans at June 30, 2015 that are current with regard to the contractual terms of the loan agreement represent 98.6% of the total home equity portfolio. Residential real estate loans, excluding PCI loans, at June 30, 2015 that are current with regards to the contractual terms of the loan agreements comprise 96.0% of total residential real estate loans outstanding.

94

Nonperforming Loans Rollforward

The table below presents a summary of non-performing loans, excluding covered loans and PCI loans, for the periods presented:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2015			2014			2015			2014
Balance at beginning of period	$	81,772		$	90,124		$	78,677		$	103,334
Additions, net	8,828			15,143			17,808			20,798
Return to performing status	(847		)	(1,094		)	(1,563		)	(3,067		)
Payments received	(6,580		)	(3,083		)	(10,949		)	(6,813		)
Transfer to OREO and other repossessed assets	(4,365		)	(9,741		)	(6,905		)	(19,754		)
Charge-offs	(2,755		)	(4,602		)	(4,556		)	(9,376		)
Net change for niche loans (1)	501			1,903			4,042			3,528
Balance at end of period	$	76,554		$	88,650		$	76,554		$	88,650

(1) This includes activity for premium finance receivables and indirect consumer loans.

PCI loans are excluded from non-performing loans as they continue to earn interest income from the related accretable yield, independent of performance with contractual terms of the loan. See Note 7 of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of non-performing loans and the loan aging during the respective periods.

Allowance for Loan Losses

The allowance for loan losses represents management’s estimate of the probable and reasonably estimable loan losses that our loan portfolio is expected to incur. The allowance for loan losses is determined quarterly using a methodology that incorporates important risk characteristics of each loan, as described below under “How We Determine the Allowance for Credit Losses.” This process is subject to review at each of our bank subsidiaries by the applicable regulatory authority, including the Federal Reserve Bank of Chicago, the Office of the Comptroller of the Currency, the State of Illinois and the State of Wisconsin.

Management determined that the allowance for loan losses was appropriate at June 30, 2015, and that the loan portfolio is well diversified and well secured, without undue concentration in any specific risk area. While this process involves a high degree of management judgment, the allowance for credit losses is based on a comprehensive, well documented, and consistently applied analysis of the Company’s loan portfolio. This analysis takes into consideration all available information existing as of the financial statement date, including environmental factors such as economic, industry, geographical and political factors. The relative level of allowance for credit losses is reviewed and compared to industry peers. This review encompasses levels of total nonperforming loans, portfolio mix, portfolio concentrations, current geographic risks and overall levels of net charge-offs. Historical trending of both the Company’s results and the industry peers is also reviewed to analyze comparative significance.

95

Allowance for Credit Losses, excluding covered loans

The following table summarizes the activity in our allowance for credit losses during the periods indicated.

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Allowance for loan losses at beginning of period	$	94,446		$	92,275		$	91,705		$	96,922
Provision for credit losses	9,701			6,813			15,886			10,117
Other adjustments	(93		)	(105		)	(341		)	(253		)
Reclassification from (to) allowance for unfunded lending-related commitments	4			(146		)	(109		)	(164		)
Charge-offs:
Commercial	1,243			2,384			1,920			3,032
Commercial real estate	856			2,351			1,861			6,844
Home equity	1,847			730			2,431			2,997
Residential real estate	923			689			1,554			915
Premium finance receivables—commercial	1,526			1,492			2,789			2,702
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	115			213			226			386
Total charge-offs	6,510			7,859			10,781			16,876
Recoveries:
Commercial	285			270			655			587
Commercial real estate	1,824			342			2,136			487
Home equity	39			122			87			379
Residential real estate	16			74			92			205
Premium finance receivables—commercial	458			312			787			631
Premium finance receivables—life insurance	—			2			—			4
Consumer and other	34			153			87			214
Total recoveries	2,656			1,275			3,844			2,507
Net charge-offs	(3,854		)	(6,584		)	(6,937		)	(14,369		)
Allowance for loan losses at period end	$	100,204		$	92,253		$	100,204		$	92,253
Allowance for unfunded lending-related commitments at period end	884			884			884			884
Allowance for credit losses at period end	$	101,088		$	93,137		$	101,088		$	93,137
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial	0.09		%	0.24		%	0.06		%	0.14		%
Commercial real estate	(0.08		)	0.19			(0.01		)	0.30
Home equity	1.01			0.34			0.66			0.74
Residential real estate	0.39			0.35			0.34			0.21
Premium finance receivables—commercial	0.18			0.20			0.17			0.18
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	0.23			0.14			0.17			0.20
Total loans, net of unearned income, excluding covered loans	0.10		%	0.19		%	0.09		%	0.21		%
Net charge-offs as a percentage of the provision for credit losses	39.73		%	96.62		%	43.68		%	142.02		%
Loans at period-end, excluding covered loans	$	15,513,650		$	13,749,996
Allowance for loan losses as a percentage of loans at period end	0.65		%	0.67		%
Allowance for credit losses as a percentage of loans at period end	0.65		%	0.68		%

The allowance for credit losses, excluding the allowance for covered loan losses, is comprised of an allowance for loan losses, which is determined with respect to loans that we have originated, and an allowance for lending-related commitments. Our allowance for lending-related commitments is determined with respect to funds that we have committed to lend but for which funds have not yet been disbursed and is computed using a methodology similar to that used to determine the allowance for loan losses. The allowance for unfunded lending-related commitments totaled $884,000 as of June 30, 2015 and June 30, 2014.

Additions to the allowance for loan losses are charged to earnings through the provision for credit losses. Charge-offs represent the amount of loans that have been determined to be uncollectible during a given period, and are deducted from the allowance for

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loan losses, and recoveries represent the amount of collections received from loans that had previously been charged off, and are credited to the allowance for loan losses. See Note 7 of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of activity within the allowance for loan losses during the period and the relationship with respective loan balances for each loan category and the total loan portfolio, excluding covered loans.

How We Determine the Allowance for Credit Losses

The allowance for loan losses includes an element for estimated probable but undetected losses and for imprecision in the credit risk models used to calculate the allowance. If the loan is impaired, the Company analyzes the loan for purposes of calculating our specific impairment reserves as part of the Problem Loan Reporting system review. A general reserve is separately determined for loans not considered impaired. See Note 7 of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of the specific impairment reserve and general reserve as it relates to the allowance for credit losses for each loan category and the total loan portfolio, excluding covered loans.

Specific Impairment Reserves:

Loans with a credit risk rating of a 6 through 9 are reviewed on a monthly basis to determine if (a) an amount is deemed uncollectible (a charge-off) or (b) it is probable that the Company will be unable to collect amounts due in accordance with the original contractual terms of the loan (impaired loan). If a loan is impaired, the carrying amount of the loan is compared to the expected payments to be reserved, discounted at the loan’s original rate, or for collateral dependent loans, to the fair value of the collateral less the estimated cost to sell. Any shortfall is recorded as a specific impairment reserve.

At June 30, 2015, the Company had $103.4 million of impaired loans with $50.7 million of this balance requiring $10.1 million of specific impairment reserves. At March 31, 2015, the Company had $112.4 million of impaired loans with $48.6 million of this balance requiring $6.2 million of specific impairment reserves. The most significant fluctuations in impaired loans with specific impairment from March 31, 2015 to June 30, 2015 occurred within the office and residential real estate portfolios. The recorded investment in this portion of the office portfolio decreased $1.3 million, while the specific impairment reserves increased $1.8 million. The increase in specific impairment was primarily the result of one impaired loan requiring a $1.5 million specific impairment reserve during the current period that did not require a specific impairment reserve at March 31, 2015. The recorded investment and specific impairment reserves in the residential real estate portfolio increased $3.2 million and $1.2 million, respectively, which was primarily the result of one credit relationship with a recorded investment of $2.2 million becoming impaired at June 30, 2015. See Note 7 of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of impaired loans and the related specific impairment reserve.

General Reserves:

For loans with a credit risk rating of 1 through 7 that are not considered impaired loans, reserves are established based on the type of loan collateral, if any, and the assigned credit risk rating. Determination of the allowance is inherently subjective as it requires significant estimates, including the amounts and timing of expected future cash flows on impaired loans, estimated losses on pools of homogeneous loans based on the average historical loss experience over a five-year period, and consideration of current environmental factors and economic trends, all of which may be susceptible to significant change.

We determine this component of the allowance for loan losses by classifying each loan into (i) categories based on the type of collateral that secures the loan (if any), and (ii) one of ten categories based on the credit risk rating of the loan, as described above under “Past Due Loans and Non-Performing Assets.” Each combination of collateral and credit risk rating is then assigned a specific loss factor that incorporates the following factors:

• historical loss experience;

• changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses;

• changes in national, regional, and local economic and business conditions and developments that affect the collectibility of the portfolio;

• changes in the nature and volume of the portfolio and in the terms of the loans;

• changes in the experience, ability, and depth of lending management and other relevant staff;

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• changes in the volume and severity of past due loans, the volume of non-accrual loans, and the volume and severity of adversely classified or graded loans;

• changes in the quality of the bank’s loan review system;

• changes in the underlying collateral for collateral dependent loans;

• the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and

• the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the bank’s existing portfolio.

In the second quarter of 2012, the Company modified its historical loss experience analysis from incorporating five-year average loss rate assumptions to incorporating three−year average loss rate assumptions. The reason for the migration at that time was charge-off rates from earlier years in the five-year period were no longer relevant as that period was characterized by historically low credit losses which then built up to a peak in credit losses as a result of the stressed economic environment and depressed real estate valuations that affected both the U.S. economy, generally, and the Company’s local markets.

In the second quarter of 2015, the Company returned to incorporating five-year average loss rate assumptions for its historical loss experience to capture an extended credit cycle. The five−year average loss rate assumption analysis is computed for each of the Company’s collateral codes. The historical loss experience is combined with the specific loss factor for each combination of collateral and credit risk rating which is then applied to each individual loan balance to determine an appropriate general reserve. The historical loss rates are updated on a quarterly basis and are driven by the performance of the portfolio and any changes to the specific loss factors are driven by management judgment and analysis of the factors described above. The Company also analyzes the three- and four-year average historical loss rates on a quarterly basis as a comparison.

Home Equity and Residential Real Estate Loans:

The determination of the appropriate allowance for loan losses for residential real estate and home equity loans differs slightly from the process used for commercial and commercial real estate loans. The same credit risk rating system, Problem Loan Reporting system, collateral coding methodology and loss factor assignment are used. The only significant difference is in how the credit risk ratings are assigned to these loans.

The home equity loan portfolio is reviewed on a loan by loan basis by analyzing current FICO scores of the borrowers, line availability, recent line usage, an approaching maturity and the aging status of the loan. Certain of these factors, or combination of these factors, may cause a portion of the credit risk ratings of home equity loans across all banks to be downgraded. Similar to commercial and commercial real estate loans, once a home equity loan’s credit risk rating is downgraded to a 6 through 9, the Company’s Managed Asset Division reviews and advises the subsidiary banks as to collateral valuations and as to the ultimate resolution of the credits that deteriorate to a non-accrual status to minimize losses.

Residential real estate loans that are downgraded to a credit risk rating of 6 through 9 also enter the problem loan reporting system and have the underlying collateral evaluated by the Managed Assets Division.

Premium Finance Receivables:

The determination of the appropriate allowance for loan losses for premium finance receivables is based on the assigned credit risk rating of loans in the portfolio. Loss factors are assigned to each risk rating in order to calculate an allowance for credit losses. The allowance for loan losses for these categories is entirely a general reserve.

Effects of Economic Recession and Real Estate Market:

In recent years, the Company’s primary markets, which are mostly in suburban Chicago, have not experienced the same levels of credit deterioration in residential mortgage and home equity loans as certain other major metropolitan markets, however, the Company’s markets have clearly been under stress. As of June 30, 2015, home equity loans and residential mortgages comprised 5% and 3%, respectively, of the Company’s total loan portfolio. At June 30, 2015 (excluding covered loans), approximately 3.8% of all of the Company’s residential mortgage loans, excluding covered loans and PCI loans, and approximately 0.9% of all of the Company’s home equity loans, are on nonaccrual status or more than one payment past due. Current delinquency statistics of these two portfolios, demonstrating that although there is stress in the Chicago metropolitan and southern Wisconsin markets, our portfolios of residential mortgages and home equity loans are performing reasonably well as reflected in the aging of the Company’s loan portfolio table shown earlier in this section.

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Methodology in Assessing Impairment and Charge-off Amounts

In determining the amount of impairment or charge-offs associated with collateral dependent loans, the Company values the loan generally by starting with a valuation obtained from an appraisal of the underlying collateral and then deducting estimated selling costs to arrive at a net appraised value. We obtain the appraisals of the underlying collateral typically on an annual basis from one of a pre-approved list of independent, third party appraisal firms. Types of appraisal valuations include “as-is”, “as-complete”, “as-stabilized”, bulk, fair market, liquidation and “retail sellout” values.

In many cases, the Company simultaneously values the underlying collateral by marketing the property to market participants interested in purchasing properties of the same type. If the Company receives offers or indications of interest, we will analyze the price and review market conditions to assess whether in light of such information the appraised value overstates the likely price and that a lower price would be a better assessment of the market value of the property and would enable us to liquidate the collateral. Additionally, the Company takes into account the strength of any guarantees and the ability of the borrower to provide value related to those guarantees in determining the ultimate charge-off or reserve associated with any impaired loans. Accordingly, the Company may charge-off a loan to a value below the net appraised value if it believes that an expeditious liquidation is desirable in the circumstance and it has legitimate offers or other indications of interest to support a value that is less than the net appraised value. Alternatively, the Company may carry a loan at a value that is in excess of the appraised value if the Company has a guarantee from a borrower that the Company believes has realizable value. In evaluating the strength of any guarantee, the Company evaluates

the financial wherewithal of the guarantor, the guarantor’s reputation, and the guarantor’s willingness and desire to work with the Company. The Company then conducts a review of the strength of a guarantee on a frequency established as the circumstances and conditions of the borrower warrant.

In circumstances where the Company has received an appraisal but has no third party offers or indications of interest, the Company may enlist the input of realtors in the local market as to the highest valuation that the realtor believes would result in a liquidation of the property given a reasonable marketing period of approximately 90 days. To the extent that the realtors’ indication of market clearing price under such scenario is less than the net appraised valuation, the Company may take a charge-off on the loan to a valuation that is less than the net appraised valuation.

The Company may also charge-off a loan below the net appraised valuation if the Company holds a junior mortgage position in a piece of collateral whereby the risk to acquiring control of the property through the purchase of the senior mortgage position is deemed to potentially increase the risk of loss upon liquidation due to the amount of time to ultimately market the property and the volatile market conditions. In such cases, the Company may abandon its junior mortgage and charge-off the loan balance in full.

In other cases, the Company may allow the borrower to conduct a “short sale,” which is a sale where the Company allows the borrower to sell the property at a value less than the amount of the loan. Many times, it is possible for the current owner to receive a better price than if the property is marketed by a financial institution which the market place perceives to have a greater desire to liquidate the property at a lower price. To the extent that we allow a short sale at a price below the value indicated by an appraisal, we may take a charge-off beyond the value that an appraisal would have indicated.

Other market conditions may require a reserve to bring the carrying value of the loan below the net appraised valuation such as litigation surrounding the borrower and/or property securing our loan or other market conditions impacting the value of the collateral.

Having determined the net value based on the factors such as those noted above and compared that value to the book value of the loan, the Company arrives at a charge-off amount or a specific reserve included in the allowance for loan losses. In summary, for collateral dependent loans, appraisals are used as the fair value starting point in the estimate of net value. Estimated costs to sell are deducted from the appraised value to arrive at the net appraised value. Although an external appraisal is the primary source of valuation utilized for charge-offs on collateral dependent loans, alternative sources of valuation may become available between appraisal dates. As a result, we may utilize values obtained through these alternating sources, which include purchase and sale agreements, legitimate indications of interest, negotiated short sales, realtor price opinions, sale of the note or support from guarantors, as the basis for charge-offs. These alternative sources of value are used only if deemed to be more representative of value based on updated information regarding collateral resolution. In addition, if an appraisal is not deemed current, a discount to appraised value may be utilized. Any adjustments from appraised value to net value are detailed and justified in an impairment analysis, which is reviewed and approved by the Company’s Managed Assets Division.

TDRs

At June 30, 2015, the Company had $62.8 million in loans modified in TDRs. The $62.8 million in TDRs represents 122 credits in which economic concessions were granted to certain borrowers to better align the terms of their loans with their current ability

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to pay. The balance decreased from $67.2 million representing 125 credits at March 31, 2015 and decreased from $88.1 million representing 143 credits at June 30, 2014.

Concessions were granted on a case-by-case basis working with these borrowers to find modified terms that would assist them in retaining their businesses or their homes and attempt to keep these loans in an accruing status for the Company. Typical concessions include reduction of the interest rate on the loan to a rate considered lower than market and other modification of terms including forgiveness of a portion of the loan balance, extension of the maturity date, and/or modifications from principal and interest payments to interest-only payments for a certain period. See Note 7 of the Consolidated Financial Statements presented under Item 1 of this report for further discussion regarding the effectiveness of these modifications in keeping the modified loans current based upon contractual terms.

Subsequent to its restructuring, any TDR that becomes nonaccrual or more than 90 days past-due and still accruing interest will be included in the Company’s nonperforming loans. Each TDR was reviewed for impairment at June 30, 2015 and approximately $3.7 million of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. Additionally, at June 30, 2015, the Company was committed to lend additional funds to borrowers totaling $726,000 under the contractual terms of TDRs.

The table below presents a summary of restructured loans for the respective periods, presented by loan category and accrual status:

	June 30,			March 31,			June 30,
(Dollars in thousands)	2015			2015			2014
Accruing TDRs:
Commercial	$	6,039		$	6,273		$	5,225
Commercial real estate	42,210			45,417			63,178
Residential real estate and other	3,925			2,997			3,796
Total accruing TDRs	$	52,174		$	54,687		$	72,199
Non-accrual TDRs: (1)
Commercial	$	165		$	184		$	1,192
Commercial real estate	6,240			8,229			12,656
Residential real estate and other	4,197			4,118			2,060
Total non-accrual TDRs	$	10,602		$	12,531		$	15,908
Total TDRs:
Commercial	$	6,204		$	6,457		$	6,417
Commercial real estate	48,450			53,646			75,834
Residential real estate and other	8,122			7,115			5,856
Total TDRs	$	62,776		$	67,218		$	88,107
Weighted-average contractual interest rate of TDRs	4.05		%	4.04		%	4.04		%

(1) Included in total non-performing loans.

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TDR Rollforward

The table below presents a summary of TDRs as of June 30, 2015 and June 30, 2014, and shows the changes in the balance during those periods:

Three Months Ended June 30, 2015 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	6,457		$	53,646		$	7,115		$	67,218
Additions during the period	—			169			1,148			1,317
Reductions:
Charge-offs	—			—			(7		)	(7		)
Transferred to OREO and other repossessed assets	—			(771		)	(104		)	(875		)
Removal of TDR loan status (1)	(161		)	(188		)	—			(349		)
Payments received	(92		)	(4,406		)	(30		)	(4,528		)
Balance at period end	$	6,204		$	48,450		$	8,122		$	62,776

Three Months Ended June 30, 2014 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	7,278		$	79,500		$	5,739		$	92,517
Additions during the period	—			2,020			220			2,240
Reductions:										—
Charge-offs	(17		)	(19		)	(73		)	(109		)
Transferred to OREO and other repossessed assets	(252		)	(3,780		)	—			(4,032		)
Removal of TDR loan status (1)	(383		)	—			—			(383		)
Payments received	(209		)	(1,887		)	(30		)	(2,126		)
Balance at period end	$	6,417		$	75,834		$	5,856		$	88,107

Six Months Ended June 30, 2015 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	7,576		$	67,623		$	7,076		$	82,275
Additions during the period	—			169			1,442			1,611
Reductions:										—
Charge-offs	(397		)	(1		)	(40		)	(438		)
Transferred to OREO and other repossessed assets	(562		)	(2,290		)	(104		)	(2,956		)
Removal of TDR loan status (1)	(237		)	(8,570		)	—			(8,807		)
Payments received	(176		)	(8,481		)	(252		)	(8,909		)
Balance at period end	$	6,204		$	48,450		$	8,122		$	62,776

Six Months Ended June 30, 2014 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	7,388		$	93,535		$	6,180		$	107,103
Additions during the period	88			7,177			220			7,485
Reductions:										—
Charge-offs	(23		)	(3,732		)	(479		)	(4,234		)
Transferred to OREO and other repossessed assets	(252		)	(16,057		)	—			(16,309		)
Removal of TDR loan status (1)	(383		)	—			—			(383		)
Payments received	(401		)	(5,089		)	(65		)	(5,555		)
Balance at period end	$	6,417		$	75,834		$	5,856		$	88,107

(1) Loan was previously classified as a TDR and subsequently performed in compliance with the loan's modifiedterms for a period of six months (including over a calendar year-end) at a modified interest rate which represented a market rate at the time of restructuring. Per our TDR policy, the TDR classification is removed.

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Other Real Estate Owned

In certain circumstances, the Company is required to take action against the real estate collateral of specific loans. The Company uses foreclosure only as a last resort for dealing with borrowers experiencing financial hardships. The Company employs extensive contact and restructuring procedures to attempt to find other solutions for our borrowers. The tables below present a summary of other real estate owned, excluding covered other real estate owned, and shows the activity for the respective periods and the balance for each property type:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Balance at beginning of period	$	42,257		$	54,131		$	45,642		$	50,454
Disposal/resolved	(6,075		)	(6,155		)	(12,921		)	(14,360		)
Transfers in at fair value, less costs to sell	6,412			12,801			10,243			27,371
Additions from acquisition	—			—			761			—
Fair value adjustments	(514		)	(1,189		)	(1,645		)	(3,877		)
Balance at end of period	$	42,080		$	59,588		$	42,080		$	59,588

	Period End
(Dollars in thousands)	June 30, 2015		March 31, 2015		June 30, 2014
Residential real estate	$	6,408	$	7,250	$	9,007
Residential real estate development	3,031		2,687		3,216
Commercial real estate	32,641		32,320		47,365
Total	$	42,080	$	42,257	$	59,588

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LIQUIDITY

Wintrust manages the liquidity position of its banking operations to ensure that sufficient funds are available to meet customers’ needs for loans and deposit withdrawals. The liquidity to meet these demands is provided by maturing assets, liquid assets that can be converted to cash and the ability to attract funds from external sources. Liquid assets refer to money market assets such as Federal funds sold and interest bearing deposits with banks, as well as available-for-sale debt securities which are not pledged to secure public funds.

The Company believes that it has sufficient funds and access to funds to meet its working capital and other needs. Please refer to Management's Discussion and Analysis of Financial Condition and Results of Operation - Interest-Earning Assets, -Deposits, -Other Funding Sources and -Shareholders’ Equity sections of this report for additional information regarding the Company’s liquidity position.

INFLATION

A banking organization’s assets and liabilities are primarily monetary. Changes in the rate of inflation do not have as great an impact on the financial condition of a bank as do changes in interest rates. Moreover, interest rates do not necessarily change at the same percentage as inflation. Accordingly, changes in inflation are not expected to have a material impact on the Company. An analysis of the Company’s asset and liability structure provides the best indication of how the organization is positioned to respond to changing interest rates. See “Quantitative and Qualitative Disclosures About Market Risks” section of this report for additional information.

FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements within the meaning of federal securities laws. Forward-looking information can be identified through the use of words such as “intend,” “plan,” “project,” “expect,” “anticipate,” “believe,” “estimate,” “contemplate,” “possible,” “point,” “will,” “may,” “should,” “would” and “could.” Forward-looking statements and information are not historical facts, are premised on many factors and assumptions, and represent only management’s expectations, estimates and projections regarding future events. Similarly, these statements are not guarantees of future performance and involve certain risks and uncertainties that are difficult to predict, which may include, but are not limited to, those listed below and the Risk Factors discussed under Item 1A of the Company’s 2014 Annual Report on Form 10-K and in any of the Company’s subsequent SEC filings. The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and is including this statement for purposes of invoking these safe harbor provisions. Such forward-looking statements may be deemed to include, among other things, statements relating to the Company’s future financial performance, the performance of its loan portfolio, the expected amount of future credit reserves and charge-offs, delinquency trends, growth plans, regulatory developments, securities that the Company may offer from time to time, and management’s long-term performance goals, as well as statements relating to the anticipated effects on financial condition and results of operations from expected developments or events, the Company’s business and growth strategies, including future acquisitions of banks, specialty finance or wealth management businesses, internal growth and plans to form additional de novo banks or branch offices. Actual results could differ materially from those addressed in the forward-looking statements as a result of numerous factors, including the following:

• negative economic conditions that adversely affect the economy, housing prices, the job market and other factors that may affect the Company’s liquidity and the performance of its loan portfolios, particularly in the markets in which it operates;

• the extent of defaults and losses on the Company’s loan portfolio, which may require further increases in its allowance for credit losses;

• estimates of fair value of certain of the Company’s assets and liabilities, which could change in value significantly from period to period;

• the financial success and economic viability of the borrowers of our commercial loans;

• market conditions in the commercial real estate market in the Chicago metropolitan area and southern Wisconsin;

• the extent of commercial and consumer delinquencies and declines in real estate values, which may require further increases in the Company’s allowance for loan and lease losses;

• inaccurate assumptions in our analytical and forecasting models used to manage our loan portfolio;

• changes in the level and volatility of interest rates, the capital markets and other market indices that may affect, among other things, the Company’s liquidity and the value of its assets and liabilities;

• competitive pressures in the financial services business which may affect the pricing of the Company’s loan and deposit products as well as its services (including wealth management services);

• failure to identify and complete favorable acquisitions in the future or unexpected difficulties or developments related to the integration of the Company’s recent or future acquisitions;

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• unexpected difficulties and losses related to FDIC-assisted acquisitions, including those resulting from our loss-sharing arrangements with the FDIC;

• any negative perception of the Company’s reputation or financial strength;

• ability to raise additional capital on acceptable terms when needed;

• disruption in capital markets, which may lower fair values for the Company’s investment portfolio;

• ability to use technology to provide products and services that will satisfy customer demands and create efficiencies in operations;

• adverse effects on our information technology systems resulting from failures, human error or tampering;

• adverse effects of failures by our vendors to provide agreed upon services in the manner and at the cost agreed, particularly our information technology vendors;

• increased costs as a result of protecting our customers from the impact of stolen debit card information;

• accuracy and completeness of information the Company receives about customers and counterparties to make credit decisions;

• ability of the Company to attract and retain senior management experienced in the banking and financial services industries;

• environmental liability risk associated with lending activities;

• the impact of any claims or legal actions, including any effect on our reputation;

• losses incurred in connection with repurchases and indemnification payments related to mortgages;

• the loss of customers as a result of technological changes allowing consumers to complete their financial transactions without the use of a bank;

• the soundness of other financial institutions;

• the expenses and delayed returns inherent in opening new branches and de novo banks;

• examinations and challenges by tax authorities;

• changes in accounting standards, rules and interpretations and the impact on the Company’s financial statements;

• the ability of the Company to receive dividends from its subsidiaries;

• a decrease in the Company’s regulatory capital ratios, including as a result of further declines in the value of its loan portfolios, or otherwise;

• legislative or regulatory changes, particularly changes in regulation of financial services companies and/or the products and services offered by financial services companies, including those resulting from the Dodd-Frank Act;

• a lowering of our credit rating;

• changes in U.S. monetary policy;

• restrictions upon our ability to market our products to consumers and limitations on our ability to profitably operate our mortgage business resulting from the Dodd-Frank Act;

• increased costs of compliance, heightened regulatory capital requirements and other risks associated with changes in regulation and the current regulatory environment, including the Dodd-Frank Act;

• the impact of heightened capital requirements;

• increases in the Company’s FDIC insurance premiums, or the collection of special assessments by the FDIC;

• delinquencies or fraud with respect to the Company’s premium finance business;

• credit downgrades among commercial and life insurance providers that could negatively affect the value of collateral securing the Company’s premium finance loans;

• the Company’s ability to comply with covenants under its credit facility; and

• fluctuations in the stock market, which may have an adverse impact on the Company’s wealth management business and brokerage operation.

Therefore, there can be no assurances that future actual results will correspond to these forward-looking statements. The reader is cautioned not to place undue reliance on any forward-looking statement made by the Company. Any such statement speaks only as of the date the statement was made or as of such date that may be referenced within the statement. The Company undertakes no obligation to update any forward-looking statement to reflect the impact of circumstances after the date of the press release. Persons are advised, however, to consult further disclosures management makes on related subjects in its reports filed with the Securities and Exchange Commission and in its press releases.

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ITEM 3

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

As an ongoing part of its financial strategy, the Company attempts to manage the impact of fluctuations in market interest rates on net interest income. This effort entails providing a reasonable balance between interest rate risk, credit risk, liquidity risk and maintenance of yield. Asset-liability management policies are established and monitored by management in conjunction with the boards of directors of the banks, subject to general oversight by the Risk Management Committee of the Company’s Board of Directors. The policies establish guidelines for acceptable limits on the sensitivity of the market value of assets and liabilities to changes in interest rates.

Interest rate risk arises when the maturity or re-pricing periods and interest rate indices of the interest earning assets, interest bearing liabilities, and derivative financial instruments are different. It is the risk that changes in the level of market interest rates will result in disproportionate changes in the value of, and the net earnings generated from, the Company’s interest earning assets, interest bearing liabilities and derivative financial instruments. The Company continuously monitors not only the organization’s current net interest margin, but also the historical trends of these margins. In addition, management attempts to identify potential adverse changes in net interest income in future years as a result of interest rate fluctuations by performing simulation analysis of various interest rate environments. If a potential adverse change in net interest margin and/or net income is identified, management would take appropriate actions with its asset-liability structure to mitigate these potentially adverse situations. Please refer to Item 2 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for further discussion of the net interest margin.

Since the Company’s primary source of interest bearing liabilities is from customer deposits, the Company’s ability to manage the types and terms of such deposits is somewhat limited by customer preferences and local competition in the market areas in which the banks operate. The rates, terms and interest rate indices of the Company’s interest earning assets result primarily from the Company’s strategy of investing in loans and securities that permit the Company to limit its exposure to interest rate risk, together with credit risk, while at the same time achieving an acceptable interest rate spread.

The Company’s exposure to interest rate risk is reviewed on a regular basis by management and the Risk Management Committees of the boards of directors of the banks and the Company. The objective of the review is to measure the effect on net income and to adjust balance sheet and derivative financial instruments to minimize the inherent risk while at the same time maximize net interest income.

The following interest rate scenarios display the percentage change in net interest income over a one-year time horizon assuming increases and decreases of 100 and 200 basis points. The Static Shock Scenario results incorporate actual cash flows and repricing characteristics for balance sheet instruments following an instantaneous, parallel change in market rates based upon a static (i.e. no growth or constant) balance sheet. Conversely, the Ramp Scenario results incorporate management’s projections of future volume and pricing of each of the product lines following a gradual, parallel change in market rates over twelve months. Actual results may differ from these simulated results due to timing, magnitude, and frequency of interest rate changes as well as changes in market conditions and management strategies. The interest rate sensitivity for both the Static Shock and Ramp Scenarios at June 30, 2015, December 31, 2014 and June 30, 2014 is as follows:

Static Shock Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
June 30, 2015	14.8	%	7.3	%	(10.5	)%
December 31, 2014	13.4	%	6.4	%	(10.1	)%
June 30, 2014	13.6	%	6.8	%	(11.5	)%

Ramp Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
June 30, 2015	6.4	%	3.3	%	(4.0	)%
December 31, 2014	5.4	%	2.5	%	(3.9	)%
June 30, 2014	5.0	%	2.4	%	(4.0	)%

One method utilized by financial institutions, including the Company, to manage interest rate risk is to enter into derivative financial instruments. Derivative financial instruments include interest rate swaps, interest rate caps and floors, futures, forwards, option contracts and other financial instruments with similar characteristics. Additionally, the Company enters into commitments to fund certain mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery

105

of mortgage loans to third party investors. See Note 13 of the Consolidated Financial Statements presented under Item 1 of this report for further information on the Company’s derivative financial instruments.

During the second quarter of 2015, the Company entered into certain covered call option transactions related to certain securities held by the Company. The Company uses these option transactions (rather than entering into other derivative interest rate contracts, such as interest rate floors) to economically hedge positions and compensate for net interest margin compression by increasing the total return associated with the related securities through fees generated from these options. Although the revenue received from these options is recorded as non-interest income rather than interest income, the increased return attributable to the related securities from these options contributes to the Company’s overall profitability. The Company’s exposure to interest rate risk may be impacted by these transactions. To mitigate this risk, the Company may acquire fixed rate term debt or use financial derivative instruments. There were no covered call options outstanding as of June 30, 2015.

ITEM 4

CONTROLS AND PROCEDURES

As of the end of the period covered by this report, the Company’s Chief Executive Officer and Chief Financial Officer carried out an evaluation under their supervision, with the participation of other members of management as they deemed appropriate, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as contemplated by Exchange Act Rule 13a-15. Based upon, and as of the date of that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures are effective, in all material respects, in timely alerting them to material information relating to the Company (and its consolidated subsidiaries) required to be included in the periodic reports the Company is required to file and submit to the SEC under the Exchange Act.

There were no changes in the Company’s internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f)) during the period that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

106

PART II —

Item 1: Legal Proceedings

The Company and its subsidiaries, from time to time, are subject to pending and threatened legal action and proceedings arising

in the ordinary course of business.

In accordance with applicable accounting principles, the Company establishes an accrued liability for litigation and threatened litigation actions and proceedings when those actions present loss contingencies which are both probable and estimable. In actions for which a loss is reasonably possible in future periods, the Company determines whether it can estimate a loss or range of possible loss. To determine whether a possible loss is estimable, the Company reviews and evaluates its material litigation on an ongoing basis, in conjunction with any outside counsel handling the matter, in light of potentially relevant factual and legal developments. This review may include information learned through the discovery process, rulings on substantive or dispositive motions, and settlement discussions.

On March 15, 2012, a former mortgage loan originator employed by Wintrust Mortgage Company, named Wintrust, Barrington

Bank and its subsidiary, Wintrust Mortgage Company, as defendants in a Fair Labor Standards Act class action lawsuit filed in

the U.S. District Court for the Northern District of Illinois (the “FLSA Litigation”). The suit asserts that Wintrust Mortgage Company violated the federal Fair Labor Standards Act and challenges the manner in which Wintrust Mortgage Company classified its loan originators and compensated them for their work. The suit also seeks to assert these claims as a class. On September 30, 2013, the Court entered an order conditionally certifying an “opt-in” class in this case. Notice to the potential class members was sent on or about October 22, 2013, primarily informing the putative class of the right to opt-into the class and setting a deadline for same. Approximately 15% of the notice recipients joined the class. On September 26, 2014, the Court stayed actions by opt-in plaintiffs with arbitration agreements, which reduced the class size by more than 40%. The Court also denied the opt-in plaintiffs’ motion for equitable tolling, which the Company anticipates will reduce the class size by an additional 15%. On April 30, 2015, the parties settled the dispute for an immaterial amount and the court approved the settlement on June 17, 2015.

On January 15, 2015, Lehman Brothers Holdings, Inc. sent a demand letter asserting that Wintrust Mortgage must indemnify it for losses arising from loans sold by Wintrust Mortgage to Lehman Brothers Bank, FSB under a Loan Purchase Agreement between Wintrust Mortgage, as successor to SGB Corporation, and Lehman Brothers Bank. While no litigation has been initiated, the demand is the precursor for triggering the alternative dispute resolution process mandated by the U.S. Bankruptcy Court for the Southern District of New York.

The Company has reserved an amount for the Lehman Brothers Holdings demand that is immaterial to its results of operations or financial condition. Such litigation and threatened litigation actions necessarily involve substantial uncertainty and it is not possible at this time to predict the ultimate resolution or to determine whether, or to what extent, any loss with respect to these legal proceedings may exceed the amounts reserved by the Company.

Based on information currently available and upon consultation with counsel, management believes that the eventual outcome of any pending or threatened legal actions and proceedings will not have a material adverse effect on the operations or financial

condition of the Company. However, it is possible that the ultimate resolution of these matters, if unfavorable, may be material to the results of operations or financial condition for a particular period.

Item 1A: Risk Factors

There were no material changes from the risk factors set forth under Part I, Item 1A “Risk Factors” in the Company’s Form 10-K for the fiscal year ended December 31, 2014.

Item 2: Unregistered Sales of Equity Securities and Use of Proceeds

No purchases of the Company’s common shares were made by or on behalf of the Company or any “affiliated purchaser” as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934, as amended, during the three months ended June 30, 2015. There is currently no authorization to repurchase shares of outstanding common stock.

107

Item 6: Exhibits:

(a) Exhibits

31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document *
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

• Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2015, formatted in XBRL (eXtensible Business Reporting Language): (i) the Consolidated Statements of Condition, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Shareholders’ Equity, (v) the Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements

108

SIGNATURES

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.

		WINTRUST FINANCIAL CORPORATION (Registrant)
Date:	August 10, 2015	/s/ DAVID L. STOEHR
		David L. Stoehr
		Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

109

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Edward J. Wehmer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Wintrust Financial Corporation;

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 accounted 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 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 registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 10, 2015

/s/ EDWARD J. WEHMER

Name:    Edward J. Wehmer

Title:      President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, David L. Stoehr, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Wintrust Financial Corporation;

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 accounted 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 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 registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 10, 2015

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATIONS

SARBANES-OXLEY ACT SECTION 906

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, the undersigned Chief Executive Officer and Chief Financial Officer of Wintrust Financial Corporation (“the Company”) certify, on the basis of such officers’ knowledge and belief that:

(1) The Quarterly Report of the Company on Form 10-Q for the period ended June 30, 2015, as filed with the Securities and Exchange Commission on August 10, 2015, (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; 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/ EDWARD J. WEHMER

Name:    Edward J. Wehmer

Title:      President and Chief Executive Officer

Date:      August 10, 2015

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

Date:      August 10, 2015

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission upon request. This certification accompanies the Report and shall not be treated as having been filed as part of this Report.

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Business Combinations (Summary of FDIC Indemnification Asset) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
FDIC Indemnification Asset [Roll Forward]
Balance at beginning of period	$ 10,224	$ 60,298	$ 11,846	$ 85,672
Additions from acquisitions	0	0	0	0
Additions from reimbursable expenses	934	2,067	2,509	3,349
Amortization	(1,206)	(1,456)	(2,466)	(3,059)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,317)	(13,645)	(8,310)	(29,029)
Payments received from the FDIC	(2,206)	(1,149)	(150)	(10,818)
Balance at end of period	$ 3,429	$ 46,115	$ 3,429	$ 46,115

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Activity in the Allowance for Covered Loan Losses) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Allowance for Covered Loan Losses [Roll Forward]
Balance at beginning of period	$ 1,878	$ 3,447	$ 2,131	$ 10,092
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,094)	(764)	(1,623)	(7,885)
Benefit attributable to FDIC loss share agreements	875	611	1,298	6,308
Net provision for covered loan losses	(219)	(153)	(325)	(1,577)
Decrease in FDIC indemnification asset	(875)	(611)	(1,298)	(6,308)
Loans charged-off	(140)	(2,189)	(377)	(5,053)
Recoveries of loans charged-off	1,571	1,173	2,084	4,513
Net recoveries (charge-offs)	1,431	(1,016)	1,707	(540)
Balance at end of period	$ 2,215	$ 1,667	$ 2,215	$ 1,667

XML

Loans Loans (Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period) (Details) - Delavan Bancshares $ in Thousands		Jan. 16, 2015 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required payments including interest		$ 15,791
Less: Nonaccretable difference		1,442
Cash flows expected to be collected	[1]	14,349
Less: Accretable yield		898
Fair value of PCI loans acquired		$ 13,451

[1] Represents undiscounted expected principal and interest cash at acquisition.

XML

Segment Information (Summary of Segment Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net interest income	$ 156,892	$ 149,180	$ 308,783	$ 293,186
Net interest income, Change in Contribution	$ 7,712		$ 15,597
Net interest income, Change in Contribution Percentage	5.00%		5.00%
Non-interest income	$ 77,013	54,102	$ 141,554	99,631
Non-interest income, Change in Contribution	$ 22,911		$ 41,923
Non-interest income, Change in Contribution Percentage	42.00%		42.00%
Net revenue	$ 233,905	203,282	$ 450,337	392,817
Net revenue, Change in Contribution	$ 30,623		$ 57,520
Net revenue, Change in Contribution Percentage	15.00%		15.00%
Segment profit	$ 43,831	38,541	$ 82,883	73,041
Segment profit, Change in Contribution	$ 5,290		$ 9,842
Segment profit, Change in Contribution Percentage	14.00%		13.00%
Segment assets	$ 20,799,924	18,895,681	$ 20,799,924	18,895,681	$ 20,010,727
Segment assets, Change in Contribution	$ 1,904,243
Segment assets, Change in Contribution Percentage	10.00%
Operating Segments
Segment Reporting Information [Line Items]
Net interest income	$ 152,582	145,026	300,498	285,092
Net interest income, Change in Contribution	$ 7,556		$ 15,406
Net interest income, Change in Contribution Percentage	5.00%		5.00%
Non-interest income	$ 84,401	61,027	$ 155,912	113,168
Non-interest income, Change in Contribution	$ 23,374		$ 42,744
Non-interest income, Change in Contribution Percentage	38.00%		38.00%
Net revenue	$ 236,983	206,053	$ 456,410	398,260
Net revenue, Change in Contribution	$ 30,930		$ 58,150
Net revenue, Change in Contribution Percentage	15.00%		15.00%
Operating Segments | Community banking
Segment Reporting Information [Line Items]
Net interest income	$ 126,964	121,228	$ 249,645	237,983
Net interest income, Change in Contribution	$ 5,736		$ 11,662
Net interest income, Change in Contribution Percentage	5.00%		5.00%
Non-interest income	$ 56,253	33,337	$ 101,165	60,656
Non-interest income, Change in Contribution	$ 22,916		$ 40,509
Non-interest income, Change in Contribution Percentage	69.00%		67.00%
Net revenue	$ 183,217	154,565	$ 350,810	298,639
Net revenue, Change in Contribution	$ 28,652		$ 52,171
Net revenue, Change in Contribution Percentage	19.00%		17.00%
Segment profit	$ 29,133	24,628	$ 54,098	47,209
Segment profit, Change in Contribution	$ 4,505		$ 6,889
Segment profit, Change in Contribution Percentage	18.00%		15.00%
Segment assets	$ 17,321,956	15,669,443	$ 17,321,956	15,669,443
Segment assets, Change in Contribution	$ 1,652,513
Segment assets, Change in Contribution Percentage	11.00%
Operating Segments | Specialty finance
Segment Reporting Information [Line Items]
Net interest income	$ 21,338	19,792	42,384	39,004
Net interest income, Change in Contribution	$ 1,546		$ 3,380
Net interest income, Change in Contribution Percentage	8.00%		9.00%
Non-interest income	$ 9,135	8,455	$ 17,006	16,336
Non-interest income, Change in Contribution	$ 680		$ 670
Non-interest income, Change in Contribution Percentage	8.00%		4.00%
Net revenue	$ 30,473	28,247	$ 59,390	55,340
Net revenue, Change in Contribution	$ 2,226		$ 4,050
Net revenue, Change in Contribution Percentage	8.00%		7.00%
Segment profit	$ 11,378	10,302	$ 22,330	19,284
Segment profit, Change in Contribution	$ 1,076		$ 3,046
Segment profit, Change in Contribution Percentage	10.00%		16.00%
Segment assets	$ 2,931,975	2,703,761	$ 2,931,975	2,703,761
Segment assets, Change in Contribution	$ 228,214
Segment assets, Change in Contribution Percentage	8.00%
Operating Segments | Wealth management
Segment Reporting Information [Line Items]
Net interest income	$ 4,280	4,006	8,469	8,105
Net interest income, Change in Contribution	$ 274		$ 364
Net interest income, Change in Contribution Percentage	7.00%		4.00%
Non-interest income	$ 19,013	19,235	$ 37,741	36,176
Non-interest income, Change in Contribution	$ (222)		$ 1,565
Non-interest income, Change in Contribution Percentage	(1.00%)		4.00%
Net revenue	$ 23,293	23,241	$ 46,210	44,281
Net revenue, Change in Contribution	$ 52		$ 1,929
Net revenue, Change in Contribution Percentage	0.00%		4.00%
Segment profit	$ 3,320	3,611	$ 6,455	6,548
Segment profit, Change in Contribution	$ (291)		$ (93)
Segment profit, Change in Contribution Percentage	(8.00%)		(1.00%)
Segment assets	$ 545,993	522,477	$ 545,993	522,477
Segment assets, Change in Contribution	$ 23,516
Segment assets, Change in Contribution Percentage	5.00%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net interest income	$ 4,310	4,154	8,285	8,094
Net interest income, Change in Contribution	$ 156		$ 191
Net interest income, Change in Contribution Percentage	4.00%		2.00%
Non-interest income	$ (7,388)	(6,925)	$ (14,358)	(13,537)
Non-interest income, Change in Contribution	$ (463)		$ (821)
Non-interest income, Change in Contribution Percentage	(7.00%)		(6.00%)
Net revenue	$ (3,078)	$ (2,771)	$ (6,073)	$ (5,443)
Net revenue, Change in Contribution	$ (307)		$ (630)
Net revenue, Change in Contribution Percentage	(11.00%)		(12.00%)

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Impaired Loans, Including Restructured Loans) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance for loan loss required	[1]	$ 50,748	$ 69,487	$ 91,511
Impaired loans with no allowance for loan loss required		52,609	57,925	45,734
Total impaired loans	[2]	103,357	127,412	137,245
Allowance for loan losses related to impaired loans		10,075	6,270	10,298
Financing Receivable
Financing Receivable, Impaired [Line Items]
Allowance for loan losses related to impaired loans		3,700
TDRs		$ 62,776	$ 82,275	$ 88,107

[1] These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

[2] Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if the loan is current with all payments of principal and interest.

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Derivative Financial Instruments Derivative Financial Instruments (Derivative Asset and Liability Balance Sheet Offsetting) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Derivative Assets
Gross Amounts Recognized		$ 36,747	$ 37,841	$ 37,461
Less: Amounts offset in the Statements of Financial Condition		0	0	0
Net amount presented in the Statements of Financial Condition		36,747	37,841	37,461
Offsetting Derivative Positions		(1,896)	(2,771)	(3,738)
Collateral Posted		0	0	0
Net Credit Exposure		34,851	35,070	33,723
Derivative Liabilities
Gross Amounts Recognized		36,605	36,921	36,733
Less: Amounts offset in the Statements of Financial Condition		0	0	0
Net amount presented in the Statements of Financial Condition		36,605	36,921	36,733
Offsetting Derivative Positions		(1,896)	(2,771)	(3,738)
Collateral Posted	[1]	(34,709)	(34,150)	(26,354)
Net Credit Exposure		0	0	$ 6,641
Security Owned and Pledged as Collateral, Fair Value		$ 36,000	$ 43,800

[1] As of June 30, 2015 and December 31, 2014, the Company posted collateral of $36.0 million and $43.8 million, respectively, which resulted in excess collateral with its counterparties. For purposes of this disclosure, the amount of posted collateral is limited to the amount offsetting the derivative liability.

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Loans (Summary of Loan Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 15,513,650	$ 14,409,398	$ 13,749,996
Covered loans	193,410	226,709	275,154
Total loans	$ 15,707,060	$ 14,636,107	$ 14,025,150
Total loans, net of unearned income, excluding covered loans, percentage	99.00%	98.00%	98.00%
Covered loans, percentage	1.00%	2.00%	2.00%
Total loans, percentage	100.00%	100.00%	100.00%
Commercial
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 4,330,344	$ 3,924,394	$ 3,640,430
Total loans, net of unearned income, excluding covered loans, percentage	27.00%	26.00%	26.00%
Commercial real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 4,850,590	$ 4,505,753	$ 4,353,472
Total loans, net of unearned income, excluding covered loans, percentage	31.00%	31.00%	31.00%
Home equity
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 712,350	$ 716,293	$ 713,642
Total loans, net of unearned income, excluding covered loans, percentage	5.00%	5.00%	5.00%
Residential real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 503,015	$ 483,542	$ 451,905
Total loans, net of unearned income, excluding covered loans, percentage	3.00%	3.00%	3.00%
Consumer and other
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 119,468	$ 151,012	$ 160,373
Total loans, net of unearned income, excluding covered loans, percentage	1.00%	1.00%	1.00%
Commercial insurance loans | Premium finance receivables
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 2,460,408	$ 2,350,833	$ 2,378,529
Total loans, net of unearned income, excluding covered loans, percentage	16.00%	16.00%	17.00%
Life insurance | Premium finance receivables
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 2,537,475	$ 2,277,571	$ 2,051,645
Total loans, net of unearned income, excluding covered loans, percentage	16.00%	16.00%	15.00%

XML

Junior Subordinated Debentures Junior Subordinated Debentures (Tables)

6 Months Ended

Jun. 30, 2015

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Summary of Junior Subordinated Debentures

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2015. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2015		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.53	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.08	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	2.88	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.24	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		40,000		41,238		L+1.45	1.73	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	1.92	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.28	%	05/2004	05/2034	05/2009
Total					$	249,493		2.47	%

XML

Derivative Financial Instruments Derivative Financial Instruments (Narrative) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) contracts derivative_instruments	Jun. 30, 2014 USD ($) derivative_instruments	Jun. 30, 2015 USD ($) contracts derivative_instruments	Jun. 30, 2014 USD ($) derivative_instruments	Dec. 31, 2014 USD ($) derivative_instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income to interest expense in the next twelve months			$ 2,800,000
Basis Amortization of Hedged item no longer in a Hedging Relationship	$ 43,000	$ 43,000	86,000	$ 86,000
Loans Held-for-sale, Fair Value Disclosure	497,283,000	$ 363,627,000	497,283,000	$ 363,627,000	$ 351,290,000
Derivative, Net Liability Position, Aggregate Fair Value	$ 35,400,000		$ 35,400,000
Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | contracts	4		4
Notional amount	$ 446,500,000		$ 446,500,000
Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	3,200,000,000		3,200,000,000
Forward Commitments to Sell Mortgage Loans
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	902,900,000		902,900,000
Interest Rate Lock Commitments
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	531,500,000		531,500,000
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 14,000,000		$ 14,000,000
Covered Call Options
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Number of Instruments Held | derivative_instruments	0	0	0	0	0
Minimum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date			Jul. 31, 2015
Maximum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date			Feb. 28, 2045
Cash Flow Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net			$ 0	$ 0
Fair Value Hedging | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	3		3
Notional amount	$ 4,500,000		$ 4,500,000
Fair Value Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 2,000	$ (1,000)	$ (2,000)	$ (3,000)
Cash flow hedge of variable rate deposits [Member] | Cash Flow Hedging | Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	2		2
Interest Rate Cap Two Hundred Sixteen Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity | Cash Flow Hedging | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 216,500,000		$ 216,500,000
Derivative, maturity date			Aug. 29, 2016
Interest Rate Cap Forty Three Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity | Cash Flow Hedging | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 43,500,000		$ 43,500,000
Derivative, maturity date			Aug. 22, 2016
Cash Flow Hedge of Junior Subordinated Debentures | Cash Flow Hedging | Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	2		2
Cash Flow Hedge of Junior Subordinated Debentures | Cash Flow Hedging | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	2		2
De-designated Hedge [Member] | Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 96,500,000		$ 96,500,000

XML

Derivative Financial Instruments Derivative Financial Instruments (Schedule Of Fair Value Of Derivative Financial Instruments) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	$ 36,747	$ 37,841	$ 37,461
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	36,605	36,921	36,733
Other Assets
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	48,918	47,964	50,967
Other Assets | Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	553	1,442	1,728
Other Assets | Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	514	1,390	1,663
Other Assets | Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	39	52	65
Other Assets | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	48,365	46,522	49,239
Other Assets | Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	36,194	36,399	35,733
Other Assets | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	11,990	10,028	13,479
Other Assets | Not Designated as Hedging Instrument | Forward Commitments to Sell Mortgage Loans
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	0	23	27
Other Assets | Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	181	72	0
Other Liabilities
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	40,499	41,180	43,650
Other Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	1,573	1,994	2,730
Other Liabilities | Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	1,573	1,994	2,727
Other Liabilities | Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	0	0	3
Other Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	38,926	39,186	40,920
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	35,032	34,927	34,003
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	0	20	9
Other Liabilities | Not Designated as Hedging Instrument | Forward Commitments to Sell Mortgage Loans
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	3,805	4,239	6,901
Other Liabilities | Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	$ 89	$ 0	$ 7

XML

Stock-Based Compensation Plans (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	May. 31, 2015	May. 31, 2011	May. 31, 2009	Jan. 31, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 3.0	$ 2.1		$ 5.3	$ 5.9
Allocated Sharebased Compensation Expense Modification Of Performance Measurement			$ 2.1
Weighted average grant date fair value per share of options granted				$ 9.69	$ 11.96
Aggregate intrinsic value of options exercised				$ 1.6	$ 1.0
Two Thousand And Seven Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved for issuance									500,000
Shares additionally approved for issuance							2,860,000	325,000
Two Thousand And Seven Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Two Thousand And Seven Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				5 years
Share based payment award options term				7 years
Two Thousand And Fifteen Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved for issuance						5,485,000
Nineteen Ninety Seven Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award options term				10 years
Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				1 year
Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				5 years
Ltip Awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage Of Performance Based Award Payouts				0.00%
Granted in Two Thousand Fifteen | Ltip Awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage Of Performance Based Award Payouts				150.00%
Granted Prior To Two Thousand Fifteen | Ltip Awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage Of Performance Based Award Payouts				200.00%

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of the Post-Modification Balance of TDRs) (Detail) $ in Thousands		3 Months Ended				6 Months Ended				12 Months Ended
		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts	[3],[4]	Jun. 30, 2014 USD ($) contracts	[3],[4]
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		6	[1],[2]	7	[1],[2]	9	[1],[2]	13	[1],[2]	17		22
TDRs		$ 1,317	[1],[2]	$ 2,240	[1],[2]	$ 1,611	[1],[2]	$ 7,485	[1],[2]	$ 6,093		$ 13,420
Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	6		3		9		8
TDRs	[1]	$ 1,317		$ 1,243		$ 1,611		$ 5,215
Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	2		5		4		8
TDRs	[1]	$ 372		$ 1,230		$ 452		$ 5,107
Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		1		2		4
TDRs	[1]	$ 169		$ 220		$ 219		$ 2,659
Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Residential real estate and other
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		5	[1],[2]	1	[1],[2]	8	[1],[2]	1	[1],[2]	13		4
TDRs		$ 1,148	[1],[2]	$ 220	[1],[2]	$ 1,442	[1],[2]	$ 220	[1],[2]	$ 3,058		$ 1,738
Residential real estate and other | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	5		1		8		1
TDRs	[1]	$ 1,148		$ 220		$ 1,442		$ 220
Residential real estate and other | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	2		0		4		0
TDRs	[1]	$ 372		$ 0		$ 452		$ 0
Residential real estate and other | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1		1		1
TDRs	[1]	$ 0		$ 220		$ 50		$ 220
Residential real estate and other | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Commercial and industrial | Commercial
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		0	[1],[2]	0	[1],[2]	0	[1],[2]	1	[1],[2]	1		1
TDRs		$ 0	[1],[2]	$ 0	[1],[2]	$ 0	[1],[2]	$ 88	[1],[2]	$ 1,461		$ 88
Commercial and industrial | Commercial | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		1
TDRs	[1]	$ 0		$ 0		$ 0		$ 88
Commercial and industrial | Commercial | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Commercial and industrial | Commercial | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		1
TDRs	[1]	$ 0		$ 0		$ 0		$ 88
Commercial and industrial | Commercial | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Office | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		0	[1],[2]	1	[1],[2]	0	[1],[2]	1	[1],[2]	1		2
TDRs		$ 0	[1],[2]	$ 790	[1],[2]	$ 0	[1],[2]	$ 790	[1],[2]	$ 720		$ 1,345
Office | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1		0		1
TDRs	[1]	$ 0		$ 790		$ 0		$ 790
Office | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Office | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Office | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Industrial | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		1	[1],[2]	0	[1],[2]	1	[1],[2]	1	[1],[2]	2		1
TDRs		$ 169	[1],[2]	$ 0	[1],[2]	$ 169	[1],[2]	$ 1,078	[1],[2]	$ 854		$ 1,078
Industrial | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		0		1		1
TDRs	[1]	$ 169		$ 0		$ 169		$ 1,078
Industrial | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Industrial | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		0		1		1
TDRs	[1]	$ 169		$ 0		$ 169		$ 1,078
Industrial | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Retail | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		0	[1],[2]	0	[1],[2]	0	[1],[2]	1	[1],[2]	0		1
TDRs		$ 0	[1],[2]	$ 0	[1],[2]	$ 0	[1],[2]	$ 202	[1],[2]	$ 0		$ 202
Retail | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		1
TDRs	[1]	$ 0		$ 0		$ 0		$ 202
Retail | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Retail | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Retail | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Multi-family | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		0	[1],[2]	1	[1],[2]	0	[1],[2]	1	[1],[2]	0		1
TDRs		$ 0	[1],[2]	$ 181	[1],[2]	$ 0	[1],[2]	$ 181	[1],[2]	$ 0		$ 181
Multi-family | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Multi-family | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1		0		1
TDRs	[1]	$ 0		$ 181		$ 0		$ 181
Multi-family | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Multi-family | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0
Mixed use and other | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts		0	[1],[2]	4	[1],[2]	0	[1],[2]	7	[1],[2]	0		11
TDRs		$ 0	[1],[2]	$ 1,049	[1],[2]	$ 0	[1],[2]	$ 4,926	[1],[2]	$ 0		$ 6,436
Mixed use and other | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1		0		3
TDRs	[1]	$ 0		$ 233		$ 0		$ 2,837
Mixed use and other | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		4		0		7
TDRs	[1]	$ 0		$ 1,049		$ 0		$ 4,926
Mixed use and other | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		1
TDRs	[1]	$ 0		$ 0		$ 0		$ 1,273
Mixed use and other | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0		0		0
TDRs	[1]	$ 0		$ 0		$ 0		$ 0

[1] Balances represent the recorded investment in the loan at the time of the restructuring.

[2] TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

[3] Balances represent the recorded investment in the loan at the time of the restructuring.

[4] Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

XML

Derivative Financial Instruments Derivative Financial Instruments (Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk) (Detail) - Fair Value Hedging - Designated as Hedging Instrument - Interest Rate Contract - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ 17	$ (26)	$ (15)	$ (43)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	(15)	25	13	40
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 2	$ (1)	$ (2)	$ (3)

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Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Detail)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation [Abstract]
Expected dividend yield	0.90%	0.40%
Expected volatility	26.50%	30.80%
Risk-free rate	1.30%	0.70%
Expected option life (in years)	4 years 6 months	4 years 6 months

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Fair Values Of Assets And Liabilities (Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		$ 7,852	$ 8,719	$ 8,435	$ 8,946
Total net gains (losses) included in Net income	[1]	182	(492)	(401)	(719)
Ending Balance		8,034	8,227	8,034	8,227
Municipal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		56,049	39,772	58,953	36,386
Total net gains (losses) included in Other comprehensive income		(713)	73	(510)	220
Purchases		4,175	1,606	10,849	4,966
Settlements		(939)	(3,398)	(10,720)	(3,519)
Ending Balance		58,572	38,053	58,572	38,053
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		24,656	23,438	23,711	22,163
Total net gains (losses) included in Other comprehensive income		340	714	1,285	1,989
Ending Balance		$ 24,996	$ 24,152	$ 24,996	$ 24,152

[1] Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

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Stock-Based Compensation Plans (Summary Of Stock Option Activity) (Detail) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common Shares, Outstanding at beginning of the period		1,618,426	1,524,672
Common Shares, Conversion of options of acquired company		16,364
Common Shares, Granted		493,690	364,767
Common Shares, Exercised		(108,042)	(88,141)
Common Shares, Forfeited or canceled		(219,356)	(43,617)
Common Shares, Outstanding at end of the period		1,801,082	1,757,681
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Strike Price, Outstanding at beginning of period		$ 43.00	$ 42.00
Weighted Average Strike Price, Conversion of options of acquired company		21.18
Weighted Average Strike Price, Granted		44.17	46.85
Weighted Average Strike Price, Exercised		33.70	34.66
Weighted Average Strike Price, Forfeited or canceled		53.47	45.56
Weighted Average Strike Price, Outstanding at end of period		$ 42.40	$ 43.29
Stock Options, Exercisable		916,168	1,143,629
Stock Options, Weighted Average Strike Price, Exercisable		$ 40.62	$ 43.98
Stock Options, Remaining Contractual Term, Outstanding, Years	[1]	4 years 4 months 24 days	3 years 6 months
Stock Options, Remaining Contractual Term, Exercisable, Years	[1]	2 years 10 months 24 days	2 years 2 months
Stock Options, Intrinsic Value, Outstanding	[2]	$ 20,012	$ 9,833
Stock Options, Intrinsic Value, Exercisable	[2]	$ 11,928	$ 7,066

[1] Represents the remaining weighted average contractual life in years.

[2] Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company's stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company's stock.

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Derivative Financial Instruments Derivative Financial Instruments (Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Rate Swaps and Caps | Trading gains (losses), net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 133	$ (737)	$ (317)	$ (1,414)
Mortgage Banking Derivatives | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	299	(4,885)	2,393	(1,208)
Covered Call Options | Fees from covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	4,565	1,244	8,925	2,786
Foreign Exchange Contract | Trading gains (losses), net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 71	$ (10)	$ 20	$ (11)

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Segment Information Segment Information (Narrative) (Detail)	6 Months Ended
	Jun. 30, 2015 segment
Segment Reporting Information [Line Items]
Number of reportable segments	3
Community Banking [Member]
Segment Reporting Information [Line Items]
Number of reportable segments	1

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Income Tax, Policy

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, “Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects,” to provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that invest in affordable housing projects that qualify for the low-income housing tax credit. This ASU permits a new accounting treatment, if certain conditions are met, which allows the Company to amortize the initial cost of an investment in proportion to the amount of tax credits and other tax benefits received with recognition of the investment performance in income tax expense. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

Loans and Leases Receivable, Troubled Debt Restructuring, Policy

Repossession of Residential Real Estate Collateral

In January 2014, the FASB issued ASU No. 2014-04, “Receivables - Troubled Debt Restructurings by Creditors (Topic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” to address diversity in practice and clarify guidance regarding the accounting for an in-substance repossession or foreclosure of residential real estate collateral. This ASU clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor. Additionally, this ASU requires disclosure of both the amount of foreclosed residential real estate property held by the Company and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

The Company’s approach to restructuring loans, excluding PCI loans, is built on its credit risk rating system which requires credit management personnel to assign a credit risk rating to each loan. In each case, the loan officer is responsible for recommending a credit risk rating for each loan and ensuring the credit risk ratings are appropriate. These credit risk ratings are then reviewed and approved by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. The Company’s credit risk rating scale is one through ten with higher scores indicating higher risk. In the case of loans rated six or worse following modification, the Company’s Managed Assets Division evaluates the loan and the credit risk rating and determines that the loan has been restructured to be reasonably assured of repayment and of performance according to the modified terms and is supported by a current, well-documented credit assessment of the borrower’s financial condition and prospects for repayment under the revised terms.

A modification of a loan, excluding PCI loans, with an existing credit risk rating of six or worse or a modification of any other credit which will result in a restructured credit risk rating of six or worse, must be reviewed for possible TDR classification. In that event, our Managed Assets Division conducts an overall credit and collateral review. A modification of these loans is considered to be a TDR if both (1) the borrower is experiencing financial difficulty and (2) for economic or legal reasons, the bank grants a concession to a borrower that it would not otherwise consider. The modification of a loan, excluding PCI loans, where the credit risk rating is five or better both before and after such modification is not considered to be a TDR. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is five or better are not experiencing financial difficulties and therefore, are not considered TDRs.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless at any subsequent re-modification the borrower has been in compliance with the loan’s modified terms for a period of six months (including over a calendar year-end) and the current interest rate represents a market rate at the time of restructuring. The Managed Assets Division, in consultation with the respective loan officer, determines whether the modified interest rate represented a current market rate at the time of restructuring. Using knowledge of current market conditions and rates, competitive pricing on recent loan originations, and an assessment of various characteristics of the modified loan (including collateral position and payment history), an appropriate market rate for a new borrower with similar risk is determined. If the modified interest rate meets or exceeds this market rate for a new borrower with similar risk, the modified interest rate represents a market rate at the time of restructuring. Additionally, before removing a loan from TDR classification, a review of the current or previously measured impairment on the loan and any concerns related to future performance by the borrower is conducted. If concerns exist about the future ability of the borrower to meet its obligations under the loans based on a credit review by the Managed Assets Division, the TDR classification is not removed from the loan.

TDRs are reviewed at the time of the modification and on a quarterly basis to determine if a specific reserve is necessary. The carrying amount of the loan is compared to the expected payments to be received, discounted at the loan's original rate, or for collateral dependent loans, to the fair value of the collateral. Any shortfall is recorded as a specific reserve. The Company, in accordance with ASC 310-10, continues to individually measure impairment of these loans after the TDR classification is removed.

Each TDR was reviewed for impairment at June 30, 2015 and approximately $3.7 million of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2015 and 2014, the Company recorded $94,000 and $103,000, respectively, in interest income representing this decrease in impairment. For the six months ended June 30, 2015 and 2014, the Company recorded $287,000 and $235,000, respectively, to interest income representing the reduction in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2015, the Company had $9.4 million of foreclosed residential real estate properties included within OREO.

FDIC-Assisted Transactions, Policy

Since 2010, the Company acquired the banking operations, including the acquisition of certain assets and the assumption of liabilities, of nine financial institutions in FDIC-assisted transactions. Loans comprise the majority of the assets acquired in nearly all of these FDIC-assisted transactions, most of which are subject to loss sharing agreements with the FDIC whereby the FDIC has agreed to reimburse the Company for 80% of losses incurred on the purchased loans, other real estate owned (“OREO”), and certain other assets. Additionally, clawback provisions within these loss share agreements with the FDIC require the Company to reimburse the FDIC in the event that actual losses on covered assets are lower than the original loss estimates agreed upon with the FDIC with respect of such assets in the loss share agreements. The Company refers to the loans subject to these loss-sharing agreements as “covered loans” and uses the term “covered assets” to refer to covered loans, covered OREO and certain other covered assets. The agreements with the FDIC require that the Company follow certain servicing procedures or risk losing the FDIC reimbursement of covered asset losses.

The loans covered by the loss sharing agreements are classified and presented as covered loans and the estimated reimbursable losses are recorded as an FDIC indemnification asset in the Consolidated Statements of Condition. The Company recorded the acquired assets and liabilities at their estimated fair values at the acquisition date. The fair value for loans reflected expected credit losses at the acquisition date. Therefore, the Company will only recognize a provision for credit losses and charge-offs on the acquired loans for any further credit deterioration subsequent to the acquisition date. See Note 7 — Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion of the allowance on covered loans.

The loss share agreements with the FDIC cover realized losses on loans, foreclosed real estate and certain other assets. These loss share assets are measured separately from the loan portfolios because they are not contractually embedded in the loans and are not transferable with the loans should the Company choose to dispose of them. Fair values at the acquisition dates were estimated based on projected cash flows available for loss-share based on the credit adjustments estimated for each loan pool and the loss share percentages. The loss share assets are recorded as FDIC indemnification assets on the Consolidated Statements of Condition. Subsequent to the acquisition date, reimbursements received from the FDIC for actual incurred losses will reduce the FDIC indemnification assets. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will also reduce the FDIC indemnification assets. In accordance with the clawback provision noted above, the Company may be required to reimburse the FDIC when actual losses are less than certain thresholds established for each lose share agreement. The balance of these estimated reimbursements in accordance with clawback provisions and any related amortization are adjusted periodically for changes in the expected losses on covered assets. Estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset on the Consolidated Statements of Condition. Although these assets are contractual receivables from the FDIC, there are no contractual interest rates. Additional expected losses, to the extent such expected losses result in recognition of an allowance for covered loan losses, will increase the FDIC indemnification asset. The corresponding amortization is recorded as a component of non-interest income on the Consolidated Statements of Income.

Purchased Credit Impaired (PCI) Loans, Policy

Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date. Expected future cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable (“accretable yield”). The difference between contractually required payments and the cash flows expected to be collected at acquisition is referred to as the non-accretable difference and represents probable losses in the portfolio.

In determining the acquisition date fair value of PCI loans, and in subsequent accounting, the Company aggregates these purchased loans into pools of loans by common risk characteristics, such as credit risk rating and loan type. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses.

The Company purchased a portfolio of life insurance premium finance receivables in 2009. These purchased life insurance premium finance receivables are valued on an individual basis with the accretable component being recognized into interest income using the effective yield method over the estimated remaining life of the loans. The non-accretable portion is evaluated each quarter and if the loans’ credit related conditions improve, a portion is transferred to the accretable component and accreted over future periods. In the event a specific loan prepays in whole, any remaining accretable and non-accretable discount is recognized in income immediately. If credit related conditions deteriorate, an allowance related to these loans will be established as part of the provision for credit losses.

Cash and Cash Equivalents, Policy

For purposes of the Consolidated Statements of Cash Flows, the Company considers cash and cash equivalents to include cash on hand, cash items in the process of collection, non-interest bearing amounts due from correspondent banks, federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

Available-for-sale Securities, Policy

The Company conducts a regular assessment of its investment securities to determine whether securities are other-than-temporarily impaired considering, among other factors, the nature of the securities, credit ratings or financial condition of the issuer, the extent and duration of the unrealized loss, expected cash flows, market conditions and the Company’s ability to hold the securities through the anticipated recovery period.

The Company does not consider securities with unrealized losses at June 30, 2015 to be other-than-temporarily impaired.

Finance, Loans and Leases Receivable, Policy

Certain premium finance receivables are recorded net of unearned income. The unearned income portions of such premium finance receivables were $53.7 million at June 30, 2015, $46.9 million at December 31, 2014 and $44.8 million at June 30, 2014, respectively. Certain life insurance premium finance receivables attributable to the life insurance premium finance loan acquisition in 2009 as well as PCI loans are recorded net of credit discounts.

Receivables, Policy

These amounts include accretion from both covered and non-covered loans, and are included together within interest and fees on loans in the Consolidated Statements of Income.

Allowance and Nonperforming Loans, Allowance Policy

As a result of this initial review by the Company’s Managed Asset Division, the credit risk rating is reviewed and a portion of the outstanding loan balance may be deemed uncollectible or an impairment reserve may be established. The Company’s impairment analysis utilizes an independent re-appraisal of the collateral (unless such a third-party evaluation is not possible due to the unique nature of the collateral, such as a closely-held business or thinly traded securities). In the case of commercial real estate collateral, an independent third party appraisal is ordered by the Company’s Real Estate Services Group to determine if there has been any change in the underlying collateral value. These independent appraisals are reviewed by the Real Estate Services Group and sometimes by independent third party valuation experts and may be adjusted depending upon market conditions.

Through the credit risk rating process, loans are reviewed to determine if they are performing in accordance with the original contractual terms. If the borrower has failed to comply with the original contractual terms, further action may be required by the Company, including a downgrade in the credit risk rating, movement to non-accrual status, a charge-off or the establishment of a specific impairment reserve. If we determine that a loan amount, or portion thereof, is uncollectible, the loan’s credit risk rating is immediately downgraded to an 8 or 9 and the uncollectible amount is charged-off. Any loan that has a partial charge-off continues to be assigned a credit risk rating of an 8 or 9 for the duration of time that a balance remains outstanding. The Company undertakes a thorough and ongoing analysis to determine if additional impairment and/or charge-offs are appropriate and to begin a workout plan for the credit to minimize actual losses.

If, based on current information and events, it is probable that the Company will be unable to collect all amounts due to it according to the contractual terms of the loan agreement, a specific impairment reserve is established. In determining the appropriate charge-off for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

Loans and Leases Receivable, Nonperforming Loan and Lease, Policy

Non-performing loans include all non-accrual loans (8 and 9 risk ratings) as well as loans 90 days past due and still accruing interest, excluding PCI loans. The remainder of the portfolio is considered performing under the contractual terms of the loan agreement.

Loans and Leases Receivable, Allowance for Loan Losses, Policy

In conjunction with FDIC-assisted transactions, the Company entered into loss share agreements with the FDIC. Additional expected losses, to the extent such expected losses result in the recognition of an allowance for loan losses, will increase the FDIC indemnification asset. The allowance for loan losses for loans acquired in FDIC-assisted transactions is determined without giving consideration to the amounts recoverable through loss share agreements (since the loss share agreements are separately accounted for and thus presented “gross” on the balance sheet). On the Consolidated Statements of Income, the provision for credit losses is reported net of changes in the amount recoverable under the loss share agreements. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will reduce the FDIC indemnification asset. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC indemnification asset.

Impaired Financing Receivable, Policy

These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if theloan is current with all payments of principal and interest.

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. A loan restructured in a troubled debt restructuring is an impaired loan according to applicable accounting guidance. Impairment is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the fair value of the underlying collateral. Impaired loans are considered a fair value measurement where an allowance is established based on the fair value of collateral. Appraised values, which may require adjustments to market-based valuation inputs, are generally used on real estate collateral-dependent impaired loans.

Goodwill and Intangible Assets, Goodwill, Policy

At June 30, 2015, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not that an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2015.

Goodwill and Intangible Assets, Intangible Assets, Policy

The core deposit intangibles recognized in connection with prior bank acquisitions are amortized over a ten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis while the customer list intangibles recognized in connection with prior acquisitions within the wealth management segment are being amortized over a ten-year period on a straight-line basis.

Debt, Policy

FHLB advances are stated at par value of the debt adjusted for unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

The proceeds received from the transaction are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party and translated to the Company’s reporting currency as of the respective date.

Offsetting Assets and Liabilities, Policy

The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition.

Repurchase Agreements, Policy

Securities pledged for customer balances in sweep accounts and short-term borrowings from brokers are maintained under the Company’s control and consist of U.S. Government agency, mortgage-backed and corporate securities. These securities are included in the available-for-sale securities portfolio as reflected on the Company’s Consolidated Statements of Condition.

Junior Subordinated Debentures, Policy

The Trusts are reported in the Company’s consolidated financial statements as unconsolidated subsidiaries. Accordingly, in the Consolidated Statements of Condition, the junior subordinated debentures issued by the Company to the Trusts are reported as liabilities and the common securities of the Trusts, all of which are owned by the Company, are included in available-for-sale securities.

Segment Reporting, Policy

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management.

The three reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of the fifteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated into one reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans originated by the specialty finance segment and sold to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note 9 — Deposits, for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment's risk-weighted assets.

The segment financial information provided in the following tables has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the segments are substantially similar to as those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2014 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

Derivatives, Policy

In most cases, the offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. However, to the extent that the derivatives are not a mirror-image and because of differences in counterparty credit risk, changes in fair value will not completely offset resulting in some earnings impact each period. Changes in the fair value of these derivatives are included in non-interest income.

Periodically, the Company will sell options to a bank or dealer for the right to purchase certain securities held within the banks’ investment portfolios (covered call options). These option transactions are designed primarily to mitigate overall interest rate risk and to increase the total return associated with the investment securities portfolio. These options do not qualify as hedges pursuant to ASC 815, and, accordingly, changes in fair value of these contracts are recognized in non-interest income.

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $2,000 and a net loss of $1,000 in other income related to hedge ineffectiveness for the three months ended June 30, 2015 and 2014, respectively and a net loss of $2,000 and $3,000 for the respective year-to-date periods.

The effective portion of changes in the fair value of these cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified to interest expense as interest payments are made on the Company’s variable rate junior subordinated debentures. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income. The ineffective portion of the change in fair value of these derivatives is recognized directly in earnings; however, no hedge ineffectiveness was recognized during the six months ended June 30, 2015 or June 30, 2014. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

On June 1, 2013, the Company de-designated a $96.5 million cap which was previously designated as a fair value hedge of interest rate risk associated with an embedded cap in one of the Company’s floating rate loans. The hedged loan was restructured which resulted in the interest rate cap no longer qualifying as an effective fair value hedge. As such, the interest rate cap derivative is no longer accounted for under hedge accounting and all changes in value subsequent to June 1, 2013 are recorded in earnings. Additionally, the Company has recorded amortization of the basis in the previously hedged item as a reduction to interest income of $43,000 and $86,000 in the three month and six month periods ended June 30, 2015 and 2014, respectively.

Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of other comprehensive income depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge. Generally, changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges, to the extent they are effective hedges, are recorded as a component of other comprehensive income, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815, including changes in fair value related to the ineffective portion of cash flow hedges, are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated through comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

Derivatives, Offsetting Fair Value Amounts, Policy

The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative assets and liabilities on the Consolidated Statements of Condition.

Fair Value of Financial Instruments, Policy

The Company measures, monitors and discloses certain of its assets and liabilities on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the assumptions used to determine fair value. These levels are:

• Level 1—unadjusted quoted prices in active markets for identical assets or liabilities.

• Level 2—inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3—significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

A financial instrument’s categorization within the above valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the assets or liabilities. Following is a description of the valuation methodologies used for the Company’s assets and liabilities measured at fair value on a recurring basis.

Available-for-sale and trading account securities—Fair values for available-for-sale and trading securities are typically based on prices obtained from independent pricing vendors. Securities measured with these valuation techniques are generally classified as Level 2 of the fair value hierarchy. Typically, standard inputs such as benchmark yields, reported trades for similar securities, issuer spreads, benchmark securities, bids, offers and reference data including market research publications are used to fair value a security. When these inputs are not available, broker/dealer quotes may be obtained by the vendor to determine the fair value of the security. We review the vendor’s pricing methodologies to determine if observable market information is being used, versus unobservable inputs. Fair value measurements using significant inputs that are unobservable in the market due to limited activity or a less liquid market are classified as Level 3 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale securities. The methodology and variables used as inputs in pricing Level 3 securities are derived from a combination of observable and unobservable inputs. The unobservable inputs are determined through internal assumptions that may vary from period to period due to external factors, such as market movement and credit rating adjustments.

At June 30, 2015, the Company classified $58.6 million of municipal securities as Level 3. These municipal securities are bond issues for various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing the non-rated bonds focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2015, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2015 have a call date that has passed, and are now continuously callable. When valuing these bonds, the fair value is capped at par value as the Company assumes a market participant would not pay more than par for a continuously callable bond.

At June 30, 2015, the Company held $25.0 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company utilizes an independent pricing vendor to provide a fair market valuation of these securities. The vendor’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a credit spread derived from the market price of the securities underlying debt. At June 30, 2015, the vendor considered five different securities whose implied credit spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The credit spreads ranged from 1.77%-2.02% with an average of 1.86% which was added to three-month LIBOR to be used as the discount rate input to the vendor’s model. Fair value of the securities is sensitive to the discount rate utilized as a higher discount rate results in a decreased fair value measurement.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is determined by reference to investor price sheets for loan products with similar characteristics.

Mortgage servicing rights—Fair value for mortgage servicing rights is determined utilizing a third party valuation model which stratifies the servicing rights into pools based on product type and interest rate. The fair value of each servicing rights pool is calculated based on the present value of estimated future cash flows using a discount rate commensurate with the risk associated with that pool, given current market conditions. At June 30, 2015, the Company classified $8.0 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the pool of mortgage servicing rights at June 30, 2015 was 9.15% with discount rates applied ranging from 9%-13%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, fair value estimates include assumptions about prepayment speeds which ranged from 10%-25% or a weighted average prepayment speed of 11.83% used as an input to value the pool of mortgage servicing rights at June 30, 2015. Prepayment speeds are inversely related to the fair value of mortgage servicing rights as an increase in prepayment speeds results in a decreased valuation.

Derivative instruments—The Company’s derivative instruments include interest rate swaps and caps, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans and foreign currency contracts. Interest rate swaps and caps are valued by a third party, using models that primarily use market observable inputs, such as yield curves, and are corroborated by comparison with valuations provided by the respective counterparties. The credit risk associated with derivative financial instruments that are subject to master netting agreements is measured on a net basis by counterparty portfolio. The fair value for mortgage-related derivatives is based on changes in mortgage rates from the date of the commitments. The fair value of foreign currency derivatives is computed based on change in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

Nonqualified deferred compensation assets—The underlying assets relating to the nonqualified deferred compensation plan are included in a trust and primarily consist of non-exchange traded institutional funds which are priced based by an independent third party service.

Fair Value Measurement, Policy

Also, the Company may be required, from time to time, to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets.

The following methods and assumptions were used by the Company in estimating fair values of financial instruments that were not previously disclosed.

Loans. Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are analyzed by type such as commercial, residential real estate, etc. Each category is further segmented by interest rate type (fixed and variable) and term. For variable-rate loans that reprice frequently, estimated fair values are based on carrying values. The fair value of residential loans is based on secondary market sources for securities backed by similar loans, adjusted for differences in loan characteristics. The fair value for other fixed rate loans is estimated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect credit and interest rate risks inherent in the loan. The primary impact of credit risk on the present value of the loan portfolio, however, was assessed through the use of the allowance for loan losses, which is believed to represent the current fair value of probable incurred losses for purposes of the fair value calculation. In accordance with ASC 820, the Company has categorized loans as a Level 3 fair value measurement.

Deposits with stated maturities. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently in effect for deposits of similar remaining maturities. In accordance with ASC 820, the Company has categorized deposits with stated maturities as a Level 3 fair value measurement.

Federal Home Loan Bank advances. The fair value of Federal Home Loan Bank advances is obtained from the Federal Home Loan Bank which uses a discounted cash flow analysis based on current market rates of similar maturity debt securities to discount cash flows. In accordance with ASC 820, the Company has categorized Federal Home Loan Bank advances as a Level 3 fair value measurement.

Subordinated notes. The fair value of the subordinated notes is based on a market price obtained from an independent pricing vendor. In accordance with ASC 820, the Company has categorized subordinated notes as a Level 2 fair value measurement.

Junior subordinated debentures. The fair value of the junior subordinated debentures is based on the discounted value of contractual cash flows. In accordance with ASC 820, the Company has categorized junior subordinated debentures as a Level 3 fair value measurement.

The Company is required under applicable accounting guidance to report the fair value of all financial instruments on the consolidated statements of condition, including those financial instruments carried at cost.

Foreclosed Assets, Policy

Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans and is included in other assets. Other real estate owned is recorded at its estimated fair value less estimated selling costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the allowance for loan losses. Subsequent changes in value are reported as adjustments to the carrying amount and are recorded in other non-interest expense. Gains and losses upon sale, if any, are also charged to other non-interest expense. Fair value is generally based on third party appraisals and internal estimates and is therefore considered a Level 3 valuation.

Stock-Based Compensation, Policy

In January 2007, the Company's shareholders approved the 2007 Stock Incentive Plan (“the 2007 Plan”) which initially provided for the issuance of up to 500,000 shares of common stock. In May 2009 and May 2011, the Company's shareholders approved an additional 325,000 shares and 2,860,000 shares, respectively, of common stock that may be offered under the 2007 Plan. The 2007 Plan replaced the Wintrust Financial Corporation 1997 Stock Incentive Plan (“the 1997 Plan”) which had substantially similar terms. In May 2015, the Company’s shareholders approved the 2015 Stock Incentive Plan (“the 2015 Plan”), which replaced the 2007 Plan. The 2015 Plan, the 2007 Plan and the 1997 Plan are collectively referred to as “the Plans.” Under the 2015 Plan 5,485,000 shares of common stock are available for awards. Outstanding awards under the Plans for which common shares are not issued by reason of cancellation, forfeiture, lapse of such award or settlement of such award in cash, are again available under the 2015 Plan. All grants made after the approval of the 2015 Plan will be made pursuant to the 2015 Plan. The Plans cover substantially all employees of Wintrust. The Compensation Committee of the Board of Directors administers all stock-based compensation programs and authorizes all awards granted pursuant to the Plans.

The Plans permit the grant of incentive stock options, nonqualified stock options, stock appreciation rights, stock awards, restricted share or unit awards, performance awards settled in shares of common stock and other incentive awards based in whole or in part by reference to the Company’s common stock. The Company historically awarded stock-based compensation in the form of time-vested nonqualified stock options and time-vested restricted share unit awards (“restricted shares”). The grants of options provide for the purchase shares of Wintrust's common stock at the fair market value of the stock on the date the options are granted. Stock options under the 2015 Plan and the 2007 Plan generally vest ratably over periods of three to five years and have a maximum term of seven years from the date of grant. Stock options granted under the 1997 Plan provided for a maximum term of 10 years. Restricted shares entitle the holders to receive, at no cost, shares of the Company’s common stock. Restricted shares generally vest over periods of one to five years from the date of grant.

Beginning in 2011, the Company has awarded annual grants under the Long-Term Incentive Program (“LTIP”), which is administered under the Plans. The LTIP is designed in part to align the interests of management with the interests of shareholders, foster retention, create a long-term focus based on sustainable results and provide participants a target long-term incentive opportunity. It is anticipated that LTIP awards will continue to be granted annually. LTIP grants to date have consisted of time-vested nonqualified stock options and performance-based stock and cash awards. Performance-based stock and cash awards granted under the LTIP are contingent upon the achievement of pre-established long-term performance goals set in advance by the Compensation Committee over a three-year period starting at the beginning of each calendar year. These performance awards are granted at a target level, and based on the Company’s achievement of the pre-established long-term goals, the actual payouts can range from 0% to a maximum of 150% (for 2015 awards) or 200% (for prior awards) of the target award. The awards vest in the quarter after the end of the performance period upon certification of the payout by the Compensation Committee of the Board of Directors.

Holders of restricted share awards and performance-based stock awards received under the Plans are not entitled to vote or receive cash dividends (or cash payments equal to the cash dividends) on the underlying common shares until the awards are vested. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company.

Stock-based compensation is measured as the fair value of an award on the date of grant, and the measured cost is recognized over the period which the recipient is required to provide service in exchange for the award. The fair values of restricted share and performance-based stock awards are determined based on the average of the high and low trading prices on the grant date, and the fair value of stock options is estimated using a Black-Scholes option-pricing model that utilizes the assumptions outlined in the following table. Option-pricing models require the input of highly subjective assumptions and are sensitive to changes in the option's expected life and the price volatility of the underlying stock, which can materially affect the fair value estimate. Expected life of options granted since the inception of the LTIP awards has been based on the safe harbor rule of the SEC Staff Accounting Bulletin No. 107 “Share-Based Payment” as the Company believes historical exercise data may not provide a reasonable basis to estimate the expected term of these options. Expected stock price volatility is based on historical volatility of the Company's common stock, which correlates with the expected life of the options, and the risk-free interest rate is based on comparable U.S. Treasury rates. Management reviews and adjusts the assumptions used to calculate the fair value of an option on a periodic basis to better reflect expected trends.

Share-based Compensation, Option and Incentive Plans, Policy

Stock based compensation is recognized based upon the number of awards that are ultimately expected to vest, taking into account expected forfeitures. In addition, for performance-based awards, an estimate is made of the number of shares expected to vest as a result of projected performance against the performance criteria in the award to determine the amount of compensation expense to recognize. The estimate is reevaluated periodically and total compensation expense is adjusted for any change in estimate in the current period. Stock-based compensation expense recognized in the Consolidated Statements of Income was $3.0 million in the second quarter of 2015 and $2.1 million in the second quarter of 2014, and $5.3 million and $5.9 million for the year-to-date periods, respectively. The first quarter of 2014 includes a $2.1 million charge for a modification to the performance measurement criteria related to the 2011 LTIP performance-based stock grants that were vested and paid out in the first quarter of 2014. The cost of the modification was determined based on the stock price on the date of re-measurement and paid to the holders of the performance-based stock awards in cash.

Earnings Per Share, Policy

Potentially dilutive common shares can result from stock options, restricted stock unit awards, stock warrants, the Company’s convertible preferred stock and shares to be issued under the Employee Stock Purchase Plan and the Directors Deferred Fee and Stock Plan, being treated as if they had been either exercised or issued, computed by application of the treasury stock method. While potentially dilutive common shares are typically included in the computation of diluted earnings per share, potentially dilutive common shares are excluded from this computation in periods in which the effect would reduce the loss per share or increase the income per share. For diluted earnings per share, net income applicable to common shares can be affected by the conversion of the Company’s convertible preferred stock. Where the effect of this conversion would reduce the loss per share or increase the income per share, net income applicable to common shares is not adjusted by the associated preferred dividends.

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Loans (Narrative) (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Schedule Of Accretable Yield Activity Related to Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination Table [Line Items]
Deferred Discounts, Finance Charges and Interest Included in Receivables	$ 1,700,000	$ (1,300,000)	$ 1,700,000	$ (1,300,000)	$ 330,000
Bank acquisitions
Schedule Of Accretable Yield Activity Related to Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination Table [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion	5,184,000	9,617,000	10,688,000	17,387,000
Premium finance receivables
Schedule Of Accretable Yield Activity Related to Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination Table [Line Items]
Loans and Leases Receivable, Deferred Income	$ 53,700,000	$ 44,800,000	$ 53,700,000	$ 44,800,000	$ 46,900,000

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Available-For-Sale Securities (Available-For-Sale Securities, Continuous Unrealized Loss Position, Fair Value) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		$ 2,205,522	$ 1,807,913	$ 1,864,123
Continuous unrealized losses existing for less than 12 months, Fair value		1,109,505
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(35,568)
Continuous unrealized losses existing for greater than 12 months, Fair value		469,835
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(26,380)
Total, Fair value		1,579,340
Total, Unrealized losses		(61,948)
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		288,196	388,713	399,031
Continuous unrealized losses existing for less than 12 months, Fair value		207,997
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(7,173)
Continuous unrealized losses existing for greater than 12 months, Fair value		0
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		0
Total, Fair value		207,997
Total, Unrealized losses		(7,173)
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		651,737	686,106	798,889
Continuous unrealized losses existing for less than 12 months, Fair value		231,514
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(8,817)
Continuous unrealized losses existing for greater than 12 months, Fair value		248,487
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(16,334)
Total, Fair value		480,001
Total, Unrealized losses		(25,151)
Municipal
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		269,562	234,951	173,664
Continuous unrealized losses existing for less than 12 months, Fair value		96,407
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(2,545)
Continuous unrealized losses existing for greater than 12 months, Fair value		37,578
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(1,449)
Total, Fair value		133,985
Total, Unrealized losses		(3,994)
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		124,924	129,309	129,211
Continuous unrealized losses existing for less than 12 months, Fair value		13,117
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(94)
Continuous unrealized losses existing for greater than 12 months, Fair value		44,762
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(1,195)
Total, Fair value		57,879
Total, Unrealized losses		(1,289)
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		2,726	3,766	4,980
Continuous unrealized losses existing for less than 12 months, Fair value		998
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(2)
Continuous unrealized losses existing for greater than 12 months, Fair value		0
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		0
Total, Fair value		998
Total, Unrealized losses		(2)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	[1]	777,087	271,129	255,082
Continuous unrealized losses existing for less than 12 months, Fair value		551,405
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(16,869)
Continuous unrealized losses existing for greater than 12 months, Fair value		120,626
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(6,630)
Total, Fair value		672,031
Total, Unrealized losses		(23,499)
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	[1]	42,550	47,347	52,672
Continuous unrealized losses existing for less than 12 months, Fair value		5,158
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(31)
Continuous unrealized losses existing for greater than 12 months, Fair value		9,877
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(401)
Total, Fair value		15,035
Total, Unrealized losses		(432)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		48,740	$ 46,592	$ 50,594
Continuous unrealized losses existing for less than 12 months, Fair value		2,909
Continuous unrealized losses existing for less than 12 months, Unrealized losses		(37)
Continuous unrealized losses existing for greater than 12 months, Fair value		8,505
Continuous unrealized losses existing for greater than 12 months, Unrealized losses		(371)
Total, Fair value		11,414
Total, Unrealized losses		$ (408)

[1] Consisting entirely of residential mortgage-backed securities, none of which are subprime.

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Derivative Financial Instruments Derivative Financial Instruments (Rollforward Of Amounts In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedges) (Detail) - Interest Rate Contract - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Rollforward of AOCI from Cash Flow Hedging Derivatives [Roll Forward]
Unrealized loss at beginning of period	$ (4,623)	$ (4,069)	$ (4,062)	$ (3,971)
Amount reclassified from accumulated other comprehensive income to interest expense on junior subordinated debentures	475	521	889	1,014
Amount of loss recognized in other comprehensive income	(260)	(1,147)	(1,235)	(1,738)
Unrealized loss at end of period	$ (4,408)	$ (4,695)	$ (4,408)	$ (4,695)

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Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2015

Share-based Compensation [Abstract]

Weighted Average Assumptions Used To Determine The Options Fair Value

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month periods ending June 30, 2015 and 2014.

	Six Months Ended
	June 30,		June 30,
	2015		2014
Expected dividend yield	0.9	%	0.4	%
Expected volatility	26.5	%	30.8	%
Risk-free rate	1.3	%	0.7	%
Expected option life (in years)	4.5		4.5

Summary Of Stock Option Activity

A summary of the Company's stock option activity for the six months ended June 30, 2015 and June 30, 2014 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2015	1,618,426		$	43.00
Conversion of options of acquired company	16,364		21.18
Granted	493,690		44.17
Exercised	(108,042	)	33.70
Forfeited or canceled	(219,356	)	53.47
Outstanding at June 30, 2015	1,801,082		$	42.40	4.4	$	20,012
Exercisable at June 30, 2015	916,168		$	40.62	2.9	$	11,928

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2014	1,524,672		$	42.00
Granted	364,767		46.85
Exercised	(88,141	)	34.66
Forfeited or canceled	(43,617	)	45.56
Outstanding at June 30, 2014	1,757,681		$	43.29	3.5	$	9,833
Exercisable at June 30, 2014	1,143,629		$	43.98	2.2	$	7,066

(1) Represents the remaining weighted average contractual life in years.

(2) Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company's stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company's stock.

Summary Of Plans' Restricted Share And Performance-Vested Stock Award Activity

A summary of the Plans' restricted share activity for the six months endedJune 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	146,112		$	47.45	181,522		$	43.39
Granted	14,907		45.35		11,430		46.10
Vested and issued	(14,015	)	38.78		(32,328	)	34.57
Forfeited	—		—		(5,387	)	36.89
Outstanding at June 30	147,004		$	48.07	155,237		$	45.65
Vested, but not issuable at June 30	85,000		$	51.88	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	295,679		$	38.18	307,512		$	34.01
Granted	104,191		44.17		93,123		46.85
Vested and issued	(78,590	)	31.10		(15,944	)	33.28
Forfeited	(33,522	)	32.62		(87,046	)	33.64
Outstanding at June 30	287,758		$	42.93	297,645		$	38.18

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Performance by Loan Class) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		$ 15,513,650	$ 14,409,398	$ 13,749,996
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		15,437,096	14,330,721	13,661,346
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		76,554	78,677	88,650
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,330,344	3,924,394	3,640,430
Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,324,950	3,914,763	3,633,919
Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		5,394	9,631	6,511
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,850,590	4,505,753	4,353,472
Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,826,706	4,479,148	4,316,842
Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		23,884	26,605	36,630
Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		712,350	716,293	713,642
Home equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		706,655	710,119	707,838
Home equity | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		5,695	6,174	5,804
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		503,015	483,542	451,905
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		119,468	151,012	160,373
Consumer and other | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		119,078	150,617	159,184
Consumer and other | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		390	395	1,189
Commercial and industrial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,534,459	2,233,364	2,012,480
Commercial and industrial | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,530,035	2,223,758	2,006,264
Commercial and industrial | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,424	9,606	6,216
Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		228,599	233,316	223,456
Franchise | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		227,694	233,316	223,456
Franchise | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		905	0	0
Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		213,797	139,003	148,211
Mortgage warehouse lines of credit | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		213,797	139,003	148,211
Mortgage warehouse lines of credit | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Community Advanatage - homeowners association | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		114,883	106,364	94,009
Community Advanatage - homeowners association | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		114,883	106,364	94,009
Community Advanatage - homeowners association | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Aircraft | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		6,831	8,065	7,847
Aircraft | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		6,831	8,065	7,847
Aircraft | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		832,455	806,402	778,344
Asset-based lending | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		832,455	806,377	778,049
Asset-based lending | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	25	295
Tax exempt | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		199,185	217,487	208,913
Tax exempt | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		199,185	217,487	208,913
Tax exempt | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		187,630	160,136	144,435
Leases | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		187,565	160,136	144,435
Leases | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		65	0	0
Other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,772	11,034	9,792
Other | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,772	11,034	9,792
Other | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	9,733	9,223	12,943
PCI - commercial | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	9,733	9,223	12,943
PCI - commercial | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	0	0	0
Residential construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		57,602	38,696	29,959
Residential construction | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		57,602	38,696	29,959
Residential construction | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Commercial construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		249,543	187,766	155,059
Commercial construction | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		249,524	187,536	154,220
Commercial construction | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		19	230	839
Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		87,837	91,830	105,927
Land | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		85,802	89,174	103,560
Land | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,035	2,656	2,367
Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		754,817	705,432	667,917
Office | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		747,756	698,144	656,967
Office | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		7,061	7,288	10,950
Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		627,407	623,970	617,640
Industrial | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		624,839	621,578	612,543
Industrial | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,568	2,392	5,097
Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		749,991	731,488	697,095
Retail | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		747,639	727,336	690,186
Retail | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,352	4,152	6,909
Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		668,448	605,742	636,169
Multi-family | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		666,718	605,493	635,480
Multi-family | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,730	249	689
Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,592,122	1,465,117	1,378,439
Mixed use and other | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,584,003	1,455,479	1,368,660
Mixed use and other | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		8,119	9,638	9,779
PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	62,823	55,712	65,267
PCI - commercial real estate | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	62,823	55,712	65,267
PCI - commercial real estate | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	0	0	0
Residential real estate | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		500,673	481,308	449,123
Residential real estate | Residential real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		484,042	465,806	433,829
Residential real estate | Residential real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		16,631	15,502	15,294
PCI - residential real estate | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	2,342	2,234	2,782
PCI - residential real estate | Residential real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	2,342	2,234	2,782
PCI - residential real estate | Residential real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	0	0	0
Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,460,408	2,350,833	2,378,529
Commercial insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,436,199	2,330,463	2,355,956
Commercial insurance loans | Premium finance receivables | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		24,209	20,370	22,573
Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,153,155	1,884,092	1,641,885
Life insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,152,804	1,884,092	1,641,236
Life insurance loans | Premium finance receivables | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		351	0	649
PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	384,320	393,479	409,760
PCI - life insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	384,320	393,479	409,760
PCI - life insurance loans | Premium finance receivables | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	$ 0	$ 0	$ 0

[1] PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

[2] PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. See Note 6 - Loans for further discussion of these purchased loans.

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Narrative) (Details) - USD ($)	1 Months Ended		3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 15, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Nov. 06, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Notes payable	$ 0		$ 0	$ 75,000,000	$ 0
Loan agreement with unaffiliated banks			101,000,000	150,000,000	101,000,000
Securities sold under repurchase agreements	48,566,000		24,633,000	48,295,000	24,633,000
Fixed rate promissory note	18,822,000		19,083,000	18,556,000	19,083,000
Proceeds from issuance of debt	150,000,000
Secured borrowings	129,077,000		0	120,057,000	0
Subordinated notes	140,000,000		140,000,000	140,000,000	140,000,000
Subordinated debt issued, gross			140,000,000
Proceeds from issuance of subordinated notes, net			139,100,000	0	139,090,000
Revolving Credit Facility
Debt Instrument [Line Items]
Notes payable	0		0	0	0
Maximum borrowing capacity			100,000,000	$ 75,000,000	$ 100,000,000
Maturity date		Dec. 15, 2014		Dec. 14, 2015		Nov. 06, 2014	Oct. 25, 2013
Debt instrument, Frequency of periodic payment				quarterly
Line of credit facility, Unused capacity, Commitment fee percentage				0.20%
Loans Payable [Member]
Debt Instrument [Line Items]
Debt instrument, Issuance date				Dec. 15, 2014	Oct. 30, 2009
Term Facility
Debt Instrument [Line Items]
Notes payable	0			$ 75,000,000
Loan agreement with unaffiliated banks							$ 1,000,000
Maturity date				Jun. 15, 2020			Jun. 01, 2015
Debt instrument, Date of first required payment				Sep. 30, 2015
Debt instrument, Frequency of periodic payment				quarterly
Repayments of debt							$ 1,000,000
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under repurchase agreements	48,600,000		24,600,000	$ 48,300,000	$ 24,600,000
Pledged financial instruments, Not separately reported, Securities for repurchase agreements				$ 76,600,000
Fixed Rate Promissory Note
Debt Instrument [Line Items]
Debt instrument, Issuance date				Aug. 31, 2012
Maturity date				Sep. 01, 2017
Debt instrument, Frequency of periodic payment				monthly
Fixed rate promissory note	$ 18,800,000		$ 19,100,000	$ 18,600,000	$ 19,100,000
Contractual rate				3.75%
Secured Debt
Debt Instrument [Line Items]
Contractual rate			1.4928%		1.4928%
Subordinated Debt
Debt Instrument [Line Items]
Maturity date				Jun. 13, 2024
Contractual rate				5.00%
Base Rate Loan | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%
Base Rate Loan | Base Rate | Term Facility
Debt Instrument [Line Items]
Basis spread on variable rate				0.75%
Base Rate Loan | Eurodollar Rate
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Base Rate Loan | Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%
Eurodollar Rate Loan | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate				1.50%
Eurodollar Rate Loan | London Interbank Offered Rate (LIBOR) | Term Facility
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%

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Goodwill And Other Intangible Assets (Summary of Finite-Lived Intangible Assets) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	$ 17,924	$ 18,811	$ 16,894
Core deposit intangibles | Community banking
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	25,881	29,379	40,770
Accumulated amortization	(14,983)	(17,879)	(31,223)
Net carrying amount	10,898	11,500	9,547
Customer list intangibles | Specialty finance
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,800	1,800	1,800
Accumulated amortization	(1,001)	(941)	(878)
Net carrying amount	799	859	922
Customer list and other intangibles | Wealth management
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,940	7,940	7,690
Accumulated amortization	(1,713)	(1,488)	(1,265)
Net carrying amount	$ 6,227	$ 6,452	$ 6,425

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Loans (Schedule of Unpaid Principal Balance And Carrying Value Of Acquired Loans) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Bank acquisitions
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid Principal Balance	$ 251,529	$ 285,809
Carrying Value	204,898	227,229
Life insurance premium finance loans acquisition
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid Principal Balance	388,773	399,665
Carrying Value	$ 384,320	$ 393,479

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Recent Accounting Developments

6 Months Ended

Jun. 30, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Developments

Recent Accounting Developments

Accounting for Investments in Qualified Affordable Housing Projects

In January 2014, the FASB issued ASU No. 2014-01, “Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects,” to provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that invest in affordable housing projects that qualify for the low-income housing tax credit. This ASU permits a new accounting treatment, if certain conditions are met, which allows the Company to amortize the initial cost of an investment in proportion to the amount of tax credits and other tax benefits received with recognition of the investment performance in income tax expense. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

Repossession of Residential Real Estate Collateral

In January 2014, the FASB issued ASU No. 2014-04, “Receivables - Troubled Debt Restructurings by Creditors (Topic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure,” to address diversity in practice and clarify guidance regarding the accounting for an in-substance repossession or foreclosure of residential real estate collateral. This ASU clarifies that an in-substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor. Additionally, this ASU requires disclosure of both the amount of foreclosed residential real estate property held by the Company and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The Company adopted this new guidance beginning January 1, 2015. The guidance did not have a material impact on the Company's consolidated financial statements.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, which created "Revenue from Contracts with Customers (Topic 606), to clarify the principles for recognizing revenue and develop a common revenue standard for customer contracts. This ASU provides guidance regarding how an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also added a new subtopic to the codification, ASC 340-40, "Other Assets and Deferred Costs: Contracts with Customers" to provide guidance on costs related to obtaining and fulfilling a customer contract. Furthermore, the new standard requires disclosure of sufficient information to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. At the time ASU No. 2014-09 was issued, the guidance was effective for fiscal years beginning after December 15, 2016. In July 2015, the FASB approved a deferral of the effective date by one year, which would result in the guidance becoming effective for fiscal years beginning after December 15, 2017. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Extraordinary and Unusual Items

In January 2015, the FASB issued ASU No. 2015-01, “Income Statement - Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items,” to eliminate the concept of extraordinary items related to separately classifying, presenting and disclosing certain events and transactions that meet the criteria for that concept. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied either prospectively or retrospectively. The Company does not expect this guidance to have a material impact on the Company’s consolidated financial statements.

Consolidation

In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis,” which changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied retrospectively. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Debt Issuance Costs

In April 2015, the FASB issued ASU No. 2015-03, "Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs," to clarify the presentation of debt issuance costs within the balance sheet. This ASU requires that an entity present debt issuance costs related to a recognized debt liability on the balance sheet as a direct deduction from the carrying amount of that debt liability, not as a separate asset. The ASU does not affect the current guidance for the recognition and measurement for these debt issuance costs. This guidance is effective for fiscal years beginning after December 15, 2015 and is to be applied retrospectively. The Company does not expect this guidance to have a material impact on the Company’s consolidated financial statements.

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Goodwill And Other Intangible Assets (Estimated Amortization) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Actual in six months ended June 30, 2015	$ 934	$ 1,156	$ 1,947	$ 2,319
Estimated remaining in 2015	1,766		1,766
Estimated—2016	3,007		3,007
Estimated—2017	2,499		2,499
Estimated—2018	2,186		2,186
Estimated—2019	$ 1,837		$ 1,837

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Available-For-Sale Securities (Schedule of Realized Gain (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Available-for-sale Securities [Abstract]
Realized gains	$ 14	$ 99	$ 567	$ 154
Realized losses	(38)	(435)	(67)	(523)
Net realized (losses) gains	(24)	(336)	500	(369)
Other than temporary impairment charges	0	0	0	0
(Losses) gains on available-for-sale securities, net	(24)	(336)	500	(369)
Proceeds from sales of available-for-sale securities	$ 498,501	$ 169,753	$ 1,134,033	$ 196,042

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Tables)

6 Months Ended

Jun. 30, 2015

Loans and Leases Receivable, Allowance [Abstract]

Schedule of Aging of the Company's Loan Portfolio

The tables below show the aging of the Company’s loan portfolio at June 30, 2015, December 31, 2014 and June 30, 2014:

As of June 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	4,424	$	—	$	1,846	$	6,027	$	2,522,162	$	2,534,459
Franchise	905		—		113		396		227,185		228,599
Mortgage warehouse lines of credit	—		—		—		—		213,797		213,797
Community Advantage—homeowners association	—		—		—		—		114,883		114,883
Aircraft	—		—		—		—		6,831		6,831
Asset-based lending	—		—		1,767		7,423		823,265		832,455
Tax exempt	—		—		—		—		199,185		199,185
Leases	65		—		—		—		187,565		187,630
Other	—		—		—		—		2,772		2,772
PCI - commercial (1)	—		474		—		233		9,026		9,733
Total commercial	5,394		474		3,726		14,079		4,306,671		4,330,344
Commercial real estate:
Residential construction	—		—		—		4		57,598		57,602
Commercial construction	19		—		—		—		249,524		249,543
Land	2,035		—		1,123		2,399		82,280		87,837
Office	6,360		701		163		2,601		744,992		754,817
Industrial	2,568		—		18		484		624,337		627,407
Retail	2,352		—		896		2,458		744,285		749,991
Multi-family	1,730		—		933		223		665,562		668,448
Mixed use and other	8,119		—		2,405		3,752		1,577,846		1,592,122
PCI - commercial real estate (1)	—		15,646		3,490		2,798		40,889		62,823
Total commercial real estate	23,183		16,347		9,028		14,719		4,787,313		4,850,590
Home equity	5,695		—		511		3,365		702,779		712,350
Residential real estate	16,631		—		2,410		1,205		480,427		500,673
PCI - residential real estate (1)	—		264		84		—		1,994		2,342
Premium finance receivables
Commercial insurance loans	15,156		9,053		5,048		11,071		2,420,080		2,460,408
Life insurance loans	—		351		—		6,823		2,145,981		2,153,155
PCI - life insurance loans (1)	—		—		—		—		384,320		384,320
Consumer and other	280		110		196		919		117,963		119,468
Total loans, net of unearned income, excluding covered loans	$	66,339	$	26,599	$	21,003	$	52,181	$	15,347,528	$	15,513,650
Covered loans	6,353		10,030		1,333		1,720		173,974		193,410
Total loans, net of unearned income	$	72,692	$	36,629	$	22,336	$	53,901	$	15,521,502	$	15,707,060

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

As of December 31, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	9,132	$	474	$	3,161	$	7,492	$	2,213,105	$	2,233,364
Franchise	—		—		308		1,219		231,789		233,316
Mortgage warehouse lines of credit	—		—		—		—		139,003		139,003
Community Advantage—homeowners association	—		—		—		—		106,364		106,364
Aircraft	—		—		—		—		8,065		8,065
Asset-based lending	25		—		1,375		2,394		802,608		806,402
Tax exempt	—		—		—		—		217,487		217,487
Leases	—		—		77		315		159,744		160,136
Other	—		—		—		—		11,034		11,034
PCI - commercial (1)	—		365		202		138		8,518		9,223
Total commercial	9,157		839		5,123		11,558		3,897,717		3,924,394
Commercial real estate
Residential construction	—		—		250		76		38,370		38,696
Commercial construction	230		—		—		2,023		185,513		187,766
Land	2,656		—		—		2,395		86,779		91,830
Office	7,288		—		2,621		1,374		694,149		705,432
Industrial	2,392		—		—		3,758		617,820		623,970
Retail	4,152		—		116		3,301		723,919		731,488
Multi-family	249		—		249		1,921		603,323		605,742
Mixed use and other	9,638		—		2,603		9,023		1,443,853		1,465,117
PCI - commercial real estate (1)	—		10,976		6,393		4,016		34,327		55,712
Total commercial real estate	26,605		10,976		12,232		27,887		4,428,053		4,505,753
Home equity	6,174		—		983		3,513		705,623		716,293
Residential real estate	15,502		—		267		6,315		459,224		481,308
PCI - residential real estate (1)	—		549		—		—		1,685		2,234
Premium finance receivables
Commercial insurance loans	12,705		7,665		5,995		17,328		2,307,140		2,350,833
Life insurance loans	—		—		13,084		339		1,870,669		1,884,092
PCI - life insurance loans (1)	—		—		—		—		393,479		393,479
Consumer and other	277		119		293		838		149,485		151,012
Total loans, net of unearned income, excluding covered loans	$	70,420	$	20,148	$	37,977	$	67,778	$	14,213,075	$	14,409,398
Covered loans	7,290		17,839		1,304		4,835		195,441		226,709
Total loans, net of unearned income	$	77,710	$	37,987	$	39,281	$	72,613	$	14,408,516	$	14,636,107

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

As of June 30, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	6,216	$	—	$	4,165	$	21,610	$	1,980,489	$	2,012,480
Franchise	—		—		—		549		222,907		223,456
Mortgage warehouse lines of credit	—		—		—		1,680		146,531		148,211
Community Advantage—homeowners association	—		—		—		—		94,009		94,009
Aircraft	—		—		—		—		7,847		7,847
Asset-based lending	295		—		—		6,047		772,002		778,344
Tax exempt	—		—		—		—		208,913		208,913
Leases	—		—		—		36		144,399		144,435
Other	—		—		—		—		9,792		9,792
PCI - commercial (1)	—		1,452		—		224		11,267		12,943
Total commercial	6,511		1,452		4,165		30,146		3,598,156		3,640,430
Commercial real estate:
Residential construction	—		—		—		18		29,941		29,959
Commercial construction	839		—		—		—		154,220		155,059
Land	2,367		—		614		4,502		98,444		105,927
Office	10,950		—		999		3,911		652,057		667,917
Industrial	5,097		—		899		690		610,954		617,640
Retail	6,909		—		1,334		2,560		686,292		697,095
Multi-family	689		—		244		4,717		630,519		636,169
Mixed use and other	9,470		309		5,384		12,300		1,350,976		1,378,439
PCI - commercial real estate (1)	—		15,682		155		1,595		47,835		65,267
Total commercial real estate	36,321		15,991		9,629		30,293		4,261,238		4,353,472
Home equity	5,804		—		1,392		3,324		703,122		713,642
Residential real estate	15,294		—		1,487		1,978		430,364		449,123
PCI - residential real estate (1)	—		988		111		—		1,683		2,782
Premium finance receivables	—		—		—		—		—		—
Commercial insurance loans	12,298		10,275		12,335		14,672		2,328,949		2,378,529
Life insurance loans	—		649		896		4,783		1,635,557		1,641,885
PCI - life insurance loans (1)	—		—		—		—		409,760		409,760
Consumer and other	1,116		73		562		600		158,022		160,373
Total loans, net of unearned income, excluding covered loans	$	77,344	$	29,428	$	30,577	$	85,796	$	13,526,851	$	13,749,996
Covered loans	6,690		34,486		4,003		1,482		228,493		275,154
Total loans, net of unearned income	$	84,034	$	63,914	$	34,580	$	87,278	$	13,755,344	$	14,025,150

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

Summary of Performance by Loan Class

The following table presents the recorded investment based on performance of loans by class, excluding covered loans, per the most recent analysis at June 30, 2015, December 31, 2014 and June 30, 2014:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30,  2014		June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Loan Balances:
Commercial
Commercial and industrial	$	2,530,035	$	2,223,758	$	2,006,264	$	4,424	$	9,606	$	6,216	$	2,534,459	$	2,233,364	$	2,012,480
Franchise	227,694		233,316		223,456		905		—		—		228,599		233,316		223,456
Mortgage warehouse lines of credit	213,797		139,003		148,211		—		—		—		213,797		139,003		148,211
Community Advantage—homeowners association	114,883		106,364		94,009		—		—		—		114,883		106,364		94,009
Aircraft	6,831		8,065		7,847		—		—		—		6,831		8,065		7,847
Asset-based lending	832,455		806,377		778,049		—		25		295		832,455		806,402		778,344
Tax exempt	199,185		217,487		208,913		—		—		—		199,185		217,487		208,913
Leases	187,565		160,136		144,435		65		—		—		187,630		160,136		144,435
Other	2,772		11,034		9,792		—		—		—		2,772		11,034		9,792
PCI - commercial (1)	9,733		9,223		12,943		—		—		—		9,733		9,223		12,943
Total commercial	4,324,950		3,914,763		3,633,919		5,394		9,631		6,511		4,330,344		3,924,394		3,640,430
Commercial real estate
Residential construction	57,602		38,696		29,959		—		—		—		57,602		38,696		29,959
Commercial construction	249,524		187,536		154,220		19		230		839		249,543		187,766		155,059
Land	85,802		89,174		103,560		2,035		2,656		2,367		87,837		91,830		105,927
Office	747,756		698,144		656,967		7,061		7,288		10,950		754,817		705,432		667,917
Industrial	624,839		621,578		612,543		2,568		2,392		5,097		627,407		623,970		617,640
Retail	747,639		727,336		690,186		2,352		4,152		6,909		749,991		731,488		697,095
Multi-family	666,718		605,493		635,480		1,730		249		689		668,448		605,742		636,169
Mixed use and other	1,584,003		1,455,479		1,368,660		8,119		9,638		9,779		1,592,122		1,465,117		1,378,439
PCI - commercial real estate(1)	62,823		55,712		65,267		—		—		—		62,823		55,712		65,267
Total commercial real estate	4,826,706		4,479,148		4,316,842		23,884		26,605		36,630		4,850,590		4,505,753		4,353,472
Home equity	706,655		710,119		707,838		5,695		6,174		5,804		712,350		716,293		713,642
Residential real estate	484,042		465,806		433,829		16,631		15,502		15,294		500,673		481,308		449,123
PCI - residential real estate (1)	2,342		2,234		2,782		—		—		—		2,342		2,234		2,782
Premium finance receivables
Commercial insurance loans	2,436,199		2,330,463		2,355,956		24,209		20,370		22,573		2,460,408		2,350,833		2,378,529
Life insurance loans	2,152,804		1,884,092		1,641,236		351		—		649		2,153,155		1,884,092		1,641,885
PCI - life insurance loans (1)	384,320		393,479		409,760		—		—		—		384,320		393,479		409,760
Consumer and other	119,078		150,617		159,184		390		395		1,189		119,468		151,012		160,373
Total loans, net of unearned income, excluding covered loans	$	15,437,096	$	14,330,721	$	13,661,346	$	76,554	$	78,677	$	88,650	$	15,513,650	$	14,409,398	$	13,749,996

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. See Note 6 - Loans for further discussion of these purchased loans.

Summary of Activity in the Allowance for Credit Losses

A summary of activity in the allowance for credit losses by loan portfolio (excluding covered loans) for the three months ended June 30, 2015 and 2014 is as follows:

Three months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Other adjustments	(13		)	(81		)	—			(5		)	6			—			(93		)
Reclassification from allowance for unfunded lending-related commitments	—			4			—			—			—			—			4
Charge-offs	(1,243		)	(856		)	(1,847		)	(923		)	(1,526		)	(115		)	(6,510		)
Recoveries	285			1,824			39			16			458			34			2,656
Provision for credit losses	145			4,305			1,432			1,835			1,991			(7		)	9,701
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088
Individually evaluated for impairment	$	2,282		$	5,602		$	808		$	1,387		$	—		$	44		$	10,123
Collectively evaluated for impairment	30,600			37,145			11,480			3,589			6,921			834			90,569
Loans acquired with deteriorated credit quality	18			335			—			43			—			—			396
Loans at period end
Individually evaluated for impairment	$	11,921		$	65,870		$	5,909		$	20,459		$	—		$	418		$	104,577
Collectively evaluated for impairment	4,308,690			4,721,897			706,441			480,214			4,613,563			119,050			14,949,855
Loans acquired with deteriorated credit quality	9,733			62,823			—			2,342			384,320			—			459,218

Three months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	24,689		$	44,605		$	10,966		$	4,691		$	5,582		$	1,742		$	92,275
Other adjustments	(22		)	(96		)	(1		)	(2		)	16			—			(105		)
Reclassification from allowance for unfunded lending-related commitments	—			(146		)	—			—			—			—			(146		)
Charge-offs	(2,384		)	(2,351		)	(730		)	(689		)	(1,492		)	(213		)	(7,859		)
Recoveries	270			342			122			74			314			153			1,275
Provision for credit losses	3,485			(1,652		)	3,561			(341		)	1,889			(129		)	6,813
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137
Individually evaluated for impairment	$	1,927		$	7,237		$	636		$	484		$	—		$	102		$	10,386
Collectively evaluated for impairment	24,100			34,349			13,282			3,196			6,309			1,451			82,687
Loans acquired with deteriorated credit quality	11			—			—			53			—			—			64
Loans at period end
Individually evaluated for impairment	$	12,397		$	100,068		$	6,030		$	18,680		$	—		$	1,560		$	138,735
Collectively evaluated for impairment	3,615,090			4,188,137			707,612			430,443			4,020,414			158,615			13,120,311
Loans acquired with deteriorated credit quality	12,943			65,267			—			2,782			409,760			198			490,950

Six months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(30		)	(261		)	—			(8		)	(42		)	—			(341		)
Reclassification from allowance for unfunded lending-related commitments	—			(109		)	—			—			—			—			(109		)
Charge-offs	(1,920		)	(1,861		)	(2,431		)	(1,554		)	(2,789		)	(226		)	(10,781		)
Recoveries	655			2,136			87			92			787			87			3,844
Provision for credit losses	2,496			6,760			2,132			2,271			2,452			(225		)	15,886
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088

Six months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	23,092		$	48,658		$	12,611		$	5,108		$	5,583		$	1,870		$	96,922
Other adjustments	(37		)	(217		)	(2		)	(4		)	7			—			(253		)
Reclassification from allowance for unfunded lending-related commitments	—			(164		)	—			—			—			—			(164		)
Charge-offs	(3,032		)	(6,844		)	(2,997		)	(915		)	(2,702		)	(386		)	(16,876		)
Recoveries	587			487			379			205			635			214			2,507
Provision for credit losses	5,428			(1,218		)	3,927			(661		)	2,786			(145		)	10,117
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137

Summary of Activity in the Allowance for Covered Loan Losses

A summary of activity in the allowance for covered loan losses for the three months ended June 30, 2015 and 2014 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2015			2014			2015			2014
Balance at beginning of period	$	1,878		$	3,447		$	2,131		$	10,092
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,094		)	(764		)	(1,623		)	(7,885		)
Benefit attributable to FDIC loss share agreements	875			611			1,298			6,308
Net provision for covered loan losses	(219		)	(153		)	(325		)	(1,577		)
Decrease in FDIC indemnification asset	(875		)	(611		)	(1,298		)	(6,308		)
Loans charged-off	(140		)	(2,189		)	(377		)	(5,053		)
Recoveries of loans charged-off	1,571			1,173			2,084			4,513
Net recoveries (charge-offs)	1,431			(1,016		)	1,707			(540		)
Balance at end of period	$	2,215		$	1,667		$	2,215		$	1,667

Summary of Impaired Loans, Including Restructured Loans

A summary of impaired loans, including troubled debt restructurings ("TDRs"), is as follows:

	June 30,		December 31,		June 30,
(Dollars in thousands)	2015		2014		2014
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,748	$	69,487	$	91,511
Impaired loans with no allowance for loan loss required	52,609		57,925		45,734
Total impaired loans (2)	$	103,357	$	127,412	$	137,245
Allowance for loan losses related to impaired loans	$	10,075	$	6,270	$	10,298
TDRs	$	62,776	$	82,275	$	88,107

(1) These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

(2) Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if theloan is current with all payments of principal and interest.

Summary of Impaired Loans by Loan Class

The following tables present impaired loans evaluated for impairment by loan class for the periods ended as follows:

							For the Six Months Ended
	As of June 30, 2015						June 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	6,702	$	7,141	$	2,000	$	6,876	$	166
Franchise	905		905		200		912		15
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	65		65		65		66		2
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	6,924		10,539		50		6,931		294
Office	7,005		7,010		2,414		7,060		154
Industrial	1,218		1,218		558		1,218		34
Retail	8,336		9,222		404		8,482		194
Multi-family	2,149		2,258		322		2,168		51
Mixed use and other	10,507		12,694		1,847		10,557		290
Home equity	1,673		1,728		808		1,680		34
Residential real estate	6,945		7,138		1,363		6,963		137
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	180		245		44		190		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	3,760	$	6,731	$	—	$	4,052	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	2,023		2,023		—		2,023		48
Commercial construction	642		642		—		627		13
Land	1,906		2,643		—		1,924		50
Office	6,289		8,780		—		6,834		221
Industrial	2,022		2,200		—		2,059		88
Retail	4,099		5,248		—		4,113		112
Multi-family	592		1,015		—		598		22
Mixed use and other	11,683		12,008		—		12,427		266
Home equity	4,236		5,697		—		4,320		118
Residential real estate	13,258		14,961		—		13,553		294
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	238		267		—		241		7
Total loans, net of unearned income, excluding covered loans	$	103,357	$	122,378	$	10,075	$	105,874	$	2,835

							For the Twelve Months Ended
	As of December 31, 2014						December 31, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	9,989	$	10,785	$	1,915	$	10,784	$	539
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	5,011		8,626		43		5,933		544
Office	11,038		12,863		305		11,567		576
Industrial	195		277		15		214		13
Retail	11,045		14,566		487		12,116		606
Multi-family	2,808		3,321		158		2,839		145
Mixed use and other	21,777		24,076		2,240		21,483		1,017
Home equity	1,946		2,055		475		1,995		80
Residential real estate	5,467		5,600		606		5,399		241
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	211		213		26		214		10
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	5,797	$	8,862	$	—	$	6,664	$	595
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		87		100
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,875		3,085		—		3,183		151
Land	10,210		10,941		—		10,268		430
Office	4,132		5,020		—		4,445		216
Industrial	4,160		4,498		—		3,807		286
Retail	5,487		7,470		—		6,915		330
Multi-family	—		—		—		—		—
Mixed use and other	7,985		8,804		—		9,533		449
Home equity	4,453		6,172		—		4,666		256
Residential real estate	12,640		14,334		—		12,682		595
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	161		222		—		173		11
Total loans, net of unearned income, excluding covered loans	$	127,412	$	153,742	$	6,270	$	134,967	$	7,190

							For the Six Months Ended
	As of June 30, 2014						June 30, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	7,220	$	10,152	$	1,631	$	8,332	$	339
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	270		290		270		275		7
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,146		2,156		128		2,150		44
Land	11,687		15,538		363		11,876		378
Office	14,403		15,159		2,664		14,517		335
Industrial	3,349		3,455		227		3,372		76
Retail	14,320		14,733		1,590		14,343		304
Multi-family	2,835		3,349		119		2,857		73
Mixed use and other	27,418		27,565		2,111		28,474		551
Home equity	1,562		1,616		636		1,567		30
Residential real estate	5,997		6,372		457		5,914		140
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	304		364		102		308		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	4,222	$	8,666	$	—	$	4,591	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		150		50
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	1,031		1,031		—		1,051		23
Land	3,917		4,958		—		5,657		131
Office	2,598		2,599		—		2,605		73
Industrial	3,603		3,839		—		3,155		95
Retail	6,422		7,813		—		6,456		188
Multi-family	440		966		—		497		22
Mixed use and other	5,330		7,842		—		5,875		218
Home equity	4,468		6,553		—		4,842		138
Residential real estate	12,422		15,538		—		12,836		295
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	1,256		1,775		—		1,260		53
Total loans, net of unearned income, excluding covered loans	$	137,245	$	164,281	$	10,298	$	142,960	$	3,790

Summary of the Post-Modification Balance of TDRs

The tables below present a summary of the post-modification balance of loans restructured during the three and six months ended June 30, 2015 and 2014, respectively, which represent TDRs:

Three months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	5	1,148		5	1,148		2	372		—	—		—	—
Total loans	6	$	1,317	6	$	1,317	2	$	372	1	$	169	—	$	—

Three months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	4	1,049		1	233		4	1,049		—	—		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	7	$	2,240	3	$	1,243	5	$	1,230	1	$	220	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

Six months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	8	1,442		8	1,442		4	452		1	50		—	—
Total loans	9	$	1,611	9	$	1,611	4	$	452	2	$	219	—	$	—

Six months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	1	$	88	—	$	—	1	$	88	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	1	1,078		1	1,078		—	—		1	1,078		—	—
Retail	1	202		1	202		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	7	4,926		3	2,837		7	4,926		1	1,273		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	13	$	7,485	8	$	5,215	8	$	5,107	4	$	2,659	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

Summary of TDRs Subsequent Default Under the Restructured Terms

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2015 and 2014, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2015			Three Months Ended June 30, 2015			Six Months Ended June 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Land	—	—		—	—		—	—
Office	1	720		—	—		—	—
Industrial	2	854		—	—		—	—
Retail	—	—		—	—		—	—
Multi-family	—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	13	3,058		4	833		4	833
Total loans	17	$	6,093	4	$	833	4	$	833

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

(Dollars in thousands)	As of June 30, 2014			Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	—	$	—	—	$	—
Commercial real estate
Land	1	2,352		1	2,352		1	2,352
Office	2	1,345		—	—		—	—
Industrial	1	1,078		1	1,078		1	1,078
Retail	1	202		—	—		—	—
Multi-family	1	181		—	—		—	—
Mixed use and other	11	6,436		3	577		3	577
Residential real estate and other	4	1,738		1	169		1	169
Total loans	22	$	13,420	6	$	4,176	6	$	4,176

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

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Loans (Tables)

6 Months Ended

Jun. 30, 2015

Loans and Leases Receivable Disclosure [Abstract]

Summary of Loan Portfolio

The following table shows the Company’s loan portfolio by category as of the dates shown:

	June 30,			December 31,			June 30,
(Dollars in thousands)	2015			2014			2014
Balance:
Commercial	$	4,330,344		$	3,924,394		$	3,640,430
Commercial real estate	4,850,590			4,505,753			4,353,472
Home equity	712,350			716,293			713,642
Residential real estate	503,015			483,542			451,905
Premium finance receivables—commercial	2,460,408			2,350,833			2,378,529
Premium finance receivables—life insurance	2,537,475			2,277,571			2,051,645
Consumer and other	119,468			151,012			160,373
Total loans, net of unearned income, excluding covered loans	$	15,513,650		$	14,409,398		$	13,749,996
Covered loans	193,410			226,709			275,154
Total loans	$	15,707,060		$	14,636,107		$	14,025,150
Mix:
Commercial	27		%	26		%	26		%
Commercial real estate	31			31			31
Home equity	5			5			5
Residential real estate	3			3			3
Premium finance receivables—commercial	16			16			17
Premium finance receivables—life insurance	16			16			15
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	98		%	98		%
Covered loans	1			2			2
Total loans	100		%	100		%	100		%

Schedule of Unpaid Principal Balance and Carrying Value of Acquired Loans

The following table presents the unpaid principal balance and carrying value for these acquired loans:

	June 30, 2015				December 31, 2014
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	251,529	$	204,898	$	285,809	$	227,229
Life insurance premium finance loans acquisition	388,773		384,320		399,665		393,479

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period

The following table provides estimated details as of the date of acquisition on loans acquired in 2015 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Delavan
Contractually required payments including interest	$	15,791
Less: Nonaccretable difference	1,442
Cash flows expected to be collected (1)	14,349
Less: Accretable yield	898
Fair value of PCI loans acquired	13,451

(1) Represents undiscounted expected principal and interest cash at acquisition.

Activity Related to Accretable Yield of Loans Acquired With Evidence of Credit Quality Deterioratio Since Origination

The following table provides activity for the accretable yield of PCI loans:

	Three Months Ended June 30, 2015						Three Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	69,182		$	1,016		$	97,674		$	6,561
Acquisitions	—			—			—			—
Accretable yield amortized to interest income	(5,184		)	(1,131		)	(9,617		)	(1,433		)
Accretable yield amortized to indemnification asset (1)	(4,089		)	—			(11,161		)	—
Reclassification from non-accretable difference (2)	1,638			115			17,928			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	2,096			—			(2,722		)	51
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

	Six Months Ended June 30, 2015						Six Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	77,485		$	1,617		$	107,655		$	8,254
Acquisitions	898			—			—			—
Accretable yield amortized to interest income	(10,688		)	(1,732		)	(17,387		)	(3,204		)
Accretable yield amortized to indemnification asset (1)	(7,665		)	—			(16,809		)	—
Reclassification from non-accretable difference (2)	2,741			115			26,508			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	872			—			(7,865		)	129
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

(1) Represents the portion of the current period accreted yield, resulting from lower expected losses, applied to reduce the loss share indemnification asset.

(2) Reclassification is the result of subsequent increases in expected principal cash flows.

(3) As of June 30, 2015, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $12.3 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Impaired Loans by Loan Class) (Detail) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	$ 50,748	$ 91,511	$ 69,487
Impaired Financing Receivable, Related Allowance		10,075	10,298	6,270
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		52,609	45,734	57,925
Impaired Financing Receivable, Recorded Investment	[2]	103,357	137,245	127,412
Impaired Financing Receivable, Unpaid Principal Balance		122,378	164,281	153,742
Impaired Financing Receivable, Average Recorded Investment		105,874	142,960	134,967
Impaired Financing Receivable, Interest Income Recognized		2,835	3,790	7,190
Commercial | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		6,702	7,220	9,989
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		7,141	10,152	10,785
Impaired Financing Receivable, Related Allowance		2,000	1,631	1,915
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		6,876	8,332	10,784
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		166	339	539
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		3,760	4,222	5,797
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		6,731	8,666	8,862
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		4,052	4,591	6,664
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		219	219	595
Commercial | Franchise
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		905	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		905	0	0
Impaired Financing Receivable, Related Allowance		200	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		912	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		15	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Mortgage warehouse lines of credit
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Community Advanatage - homeowners association
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Aircraft
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Asset-based lending
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	270	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	290	0
Impaired Financing Receivable, Related Allowance		0	270	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	275	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	7	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	25	25
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	1,952	1,952
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	150	87
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	50	100
Commercial | Tax exempt
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Leases
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		65	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		65	0	0
Impaired Financing Receivable, Related Allowance		65	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		66	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		2	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial | Other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Commercial real estate | Residential construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		2,023	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,023	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		2,023	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		48	0	0
Commercial real estate | Commercial construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	2,146	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	2,156	0
Impaired Financing Receivable, Related Allowance		0	128	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	2,150	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	44	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		642	1,031	2,875
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		642	1,031	3,085
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		627	1,051	3,183
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		13	23	151
Commercial real estate | Land
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		6,924	11,687	5,011
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		10,539	15,538	8,626
Impaired Financing Receivable, Related Allowance		50	363	43
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		6,931	11,876	5,933
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		294	378	544
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		1,906	3,917	10,210
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,643	4,958	10,941
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,924	5,657	10,268
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		50	131	430
Commercial real estate | Office
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		7,005	14,403	11,038
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		7,010	15,159	12,863
Impaired Financing Receivable, Related Allowance		2,414	2,664	305
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		7,060	14,517	11,567
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		154	335	576
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		6,289	2,598	4,132
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		8,780	2,599	5,020
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		6,834	2,605	4,445
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		221	73	216
Commercial real estate | Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		1,218	3,349	195
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		1,218	3,455	277
Impaired Financing Receivable, Related Allowance		558	227	15
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		1,218	3,372	214
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		34	76	13
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		2,022	3,603	4,160
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,200	3,839	4,498
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		2,059	3,155	3,807
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		88	95	286
Commercial real estate | Retail
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		8,336	14,320	11,045
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		9,222	14,733	14,566
Impaired Financing Receivable, Related Allowance		404	1,590	487
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		8,482	14,343	12,116
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		194	304	606
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		4,099	6,422	5,487
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		5,248	7,813	7,470
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		4,113	6,456	6,915
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		112	188	330
Commercial real estate | Multi-family
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		2,149	2,835	2,808
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		2,258	3,349	3,321
Impaired Financing Receivable, Related Allowance		322	119	158
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		2,168	2,857	2,839
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		51	73	145
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		592	440	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		1,015	966	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		598	497	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		22	22	0
Commercial real estate | Mixed use and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		10,507	27,418	21,777
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		12,694	27,565	24,076
Impaired Financing Receivable, Related Allowance		1,847	2,111	2,240
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		10,557	28,474	21,483
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		290	551	1,017
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		11,683	5,330	7,985
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		12,008	7,842	8,804
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		12,427	5,875	9,533
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		266	218	449
Home equity
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		1,673	1,562	1,946
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		1,728	1,616	2,055
Impaired Financing Receivable, Related Allowance		808	636	475
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		1,680	1,567	1,995
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		34	30	80
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		4,236	4,468	4,453
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		5,697	6,553	6,172
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		4,320	4,842	4,666
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		118	138	256
Residential real estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		6,945	5,997	5,467
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		7,138	6,372	5,600
Impaired Financing Receivable, Related Allowance		1,363	457	606
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		6,963	5,914	5,399
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		137	140	241
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		13,258	12,422	12,640
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		14,961	15,538	14,334
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		13,553	12,836	12,682
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		294	295	595
Premium finance receivables | Commercial insurance loans
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Premium finance receivables | Life insurance loans
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Premium finance receivables | PCI - life insurance loans
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		0	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		0	0	0
Consumer and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		180	304	211
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		245	364	213
Impaired Financing Receivable, Related Allowance		44	102	26
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		190	308	214
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		6	8	10
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		238	1,256	161
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		267	1,775	222
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		241	1,260	173
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		$ 7	$ 53	$ 11

[1] These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

[2] Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if the loan is current with all payments of principal and interest.

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Available-For-Sale Securities (Investments Classified by Contractual Maturity Date) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 141,792	$ 285,596	$ 173,991
Due in one to five years, Amortized Cost	261,285	172,647	361,300
Due in five to ten years, Amortized Cost	291,451	331,389	319,641
Due after ten years, Amortized Cost	642,617	653,213	650,843
Amortized Cost	2,205,522	1,807,913	1,864,123
Due in one year or less, Fair Value	141,897	285,889	174,220
Due in one to five years, Fair Value	261,146	172,885	362,423
Due in five to ten years, Fair Value	285,192	325,644	310,196
Due after ten years, Fair Value	619,517	637,811	618,986
Available-for-sale securities, at fair value	2,162,061	1,792,078	1,824,240
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	819,637	318,476	307,754
Available-for-sale securities, at fair value	800,101	318,710	303,563
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	48,740	46,592	50,594
Available-for-sale securities, at fair value	$ 54,208	$ 51,139	$ 54,852

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Assets by Business Segment

A summary of the Company’s goodwill assets by business segment is presented in the following table:

(Dollars in thousands)	January 1, 2015		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2015
Community banking	$	331,752	$	17,383	$	—	$	—		$	349,135
Specialty finance	41,768		—		—		(1,371		)	40,397
Wealth management	32,114		—		—		—			32,114
Total	$	405,634	$	17,383	$	—	$	(1,371	)	$	421,646

Summary of Finite-Lived Intangible Assets

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2015 is as follows:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	25,881		$	29,379		$	40,770
Accumulated amortization	(14,983		)	(17,879		)	(31,223		)
Net carrying amount	$	10,898		$	11,500		$	9,547
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,001		)	(941		)	(878		)
Net carrying amount	$	799		$	859		$	922
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,690
Accumulated amortization	(1,713		)	(1,488		)	(1,265		)
Net carrying amount	$	6,227		$	6,452		$	6,425
Total other intangible assets, net	$	17,924		$	18,811		$	16,894

Estimated Amortization

Estimated amortization
Actual in six months ended June 30, 2015	$	1,947
Estimated remaining in 2015	1,766
Estimated—2016	3,007
Estimated—2017	2,499
Estimated—2018	2,186
Estimated—2019	1,837

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Deposits Deposits (Tables)

6 Months Ended

Jun. 30, 2015

Deposits [Abstract]

Summary of Deposits

The following table is a summary of deposits as of the dates shown:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Balance:
Non-interest bearing	$	3,910,310		$	3,518,685		$	3,072,430
NOW and interest bearing demand deposits	2,240,832			2,236,089			2,002,868
Wealth management deposits	1,591,251			1,226,916			1,220,102
Money market	3,898,495			3,651,467			3,591,540
Savings	1,504,654			1,508,877			1,427,222
Time certificates of deposit	3,936,876			4,139,810			4,242,214
Total deposits	$	17,082,418		$	16,281,844		$	15,556,376
Mix:
Non-interest bearing	23		%	22		%	20		%
NOW and interest bearing demand deposits	13			14			13
Wealth management deposits	9			8			8
Money market	23			22			23
Savings	9			9			9
Time certificates of deposit	23			25			27
Total deposits	100		%	100		%	100		%

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Basis of Presentation

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The consolidated financial statements of Wintrust Financial Corporation and Subsidiaries (“Wintrust” or “the Company”) presented herein are unaudited, but in the opinion of management reflect all necessary adjustments of a normal or recurring nature for a fair presentation of results as of the dates and for the periods covered by the consolidated financial statements.

The accompanying consolidated financial statements are unaudited and do not include information or footnotes necessary for a complete presentation of financial condition, results of operations or cash flows in accordance with U.S. generally accepted accounting principles ("GAAP"). The consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Form 10-K”). Operating results reported for the three-month periods are not necessarily indicative of the results which may be expected for the entire year. Reclassifications of certain prior period amounts have been made to conform to the current period presentation.

The preparation of the financial statements requires management to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities. Management believes that the estimates made are reasonable, however, changes in estimates may be required if economic or other conditions develop differently from management’s expectations. Certain policies and accounting principles inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Management views critical accounting policies to be those which are highly dependent on subjective or complex judgments, estimates and assumptions, and where changes in those estimates and assumptions could have a significant impact on the financial statements. Management currently views the determination of the allowance for loan losses, allowance for covered loan losses and the allowance for losses on lending-related commitments, loans acquired with evidence of credit quality deterioration since origination, estimations of fair value, the valuations required for impairment testing of goodwill, the valuation and accounting for derivative instruments and income taxes as the accounting areas that require the most subjective and complex judgments, and as such could be the most subject to revision as new information becomes available. Descriptions of our significant accounting policies are included in Note 1 - “Summary of Significant Accounting Policies” of the Company’s 2014 Form 10-K.

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Summary of Debt

The following table is a summary of notes payable, Federal Home Loan Bank advances, other borrowings and subordinated notes as of the dates shown:

(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014
Federal Home Loan Bank advances	$	444,017	$	733,050	$	580,582
Other borrowings:
Notes payable	75,000		—		—
Securities sold under repurchase agreements	48,295		48,566		24,633
Other	18,556		18,822		19,083
Secured borrowings	120,057		129,077		—
Total other borrowings	261,908		196,465		43,716
Subordinated notes	140,000		140,000		140,000
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	845,925	$	1,069,515	$	764,298

Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements

The following is a summary of these securities pledged disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

As of June 30, 2015
(Dollars in thousands)	Overnight Sweep Collateral
U.S. Treasury	$	12,625
U.S. Government agencies	23,084
Municipal	7,518
Corporate notes:
Financial issuers	17,932
Mortgage-backed: (1)
Mortgage-backed securities	15,487
Equity securities	—
Total collateral pledged	$	76,646
Excess collateral	28,351
Repurchase Agreements	$	48,295

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Fair Values Of Assets and Liabilities (Schedule Of Valuation Techniques And Significant Unobservable Inputs Used To Measure Both Recurring And Non-Recurring) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		$ 2,162,061	$ 1,792,078	$ 1,824,240
Impaired loans—collateral based	[1]	103,357	127,412	137,245
Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		269,790	238,529	176,107
Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		54,208	51,139	54,852
Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Mortgage servicing rights		8,034	8,435	8,227
Fair Value, Measurements, Recurring | Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		269,790	238,529	176,107
Fair Value, Measurements, Recurring | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		54,208	51,139	54,852
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based		61,713
Other real estate owned	[2]	77,499
Level 3 | Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Mortgage servicing rights		$ 8,034	8,435	8,227
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology		Discounted cash flows
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate		9.00%
Fair Value Inputs, Prepayment Rate		10.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate		13.00%
Fair Value Inputs, Prepayment Rate		25.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate Input
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input		Discount rate
Range of Inputs		9%-13%
Weighted Average of Inputs		9.15%
Impact to valuation from an increased or higher input value		Decrease
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate Input
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input		Constant prepayment rate (CPR)
Range of Inputs		10%-25%
Weighted Average of Inputs		11.83%
Impact to valuation from an increased or higher input value		Decrease
Level 3 | Fair Value, Measurements, Recurring | Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		$ 58,572	58,953	38,053
Valuation Methodology		Bond pricing
Significant Unobservable Input		Equivalent rating
Range of Inputs		BBB-AA+
Impact to valuation from an increased or higher input value		Increase
Level 3 | Fair Value, Measurements, Recurring | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		$ 24,996	$ 23,711	$ 24,152
Valuation Methodology		Discounted cash flows
Significant Unobservable Input		Discount rate
Range of Inputs		1.77%-2.02%
Weighted Average of Inputs		1.86%
Impact to valuation from an increased or higher input value		Decrease
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate		1.77%
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate		2.02%
Level 3 | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based		$ 61,713
Other real estate owned		$ 77,499
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology		Appraisal value
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology		Appraisal value
Significant Unobservable Input		Property specific valuation adjustment
Range of Inputs		(85)%-87%
Weighted Average of Inputs		(3.58%)
Impact to valuation from an increased or higher input value		Increase
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Property Specific Valuation Adjustment		(85.00%)
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Property Specific Valuation Adjustment		87.00%

[1] Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if the loan is current with all payments of principal and interest.

[2] Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

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Business Combinations (Narrative) (Detail)						6 Months Ended	66 Months Ended
	Jan. 16, 2015 USD ($) locations	Aug. 08, 2014 USD ($) locations	Jul. 11, 2014 USD ($)	May. 16, 2014 USD ($)	Apr. 28, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2015 financial_institution
Business Acquisition [Line Items]
Additional goodwill recorded on acquisition						$ 17,383,000
FDIC loss sharing percentage on purchased loans, OREO, and certain other assets						80.00%
Delavan Bancshares
Business Acquisition [Line Items]
Effective date of acquisition	Jan. 16, 2015
Number of locations | locations	4
Assets acquired	$ 224,100,000
Loans acquired	128,000,000
Liabilities assumed	186,400,000
Assumed deposits	170,200,000
Additional goodwill recorded on acquisition	$ 17,400,000
Talmer Bank & Trust
Business Acquisition [Line Items]
Effective date of acquisition		Aug. 08, 2014
Number of locations | locations		11
Assets acquired		$ 361,300,000
Loans acquired		41,500,000
Liabilities assumed		361,300,000
Assumed deposits		354,900,000
Additional goodwill recorded on acquisition		$ 9,700,000
THE National Bank
Business Acquisition [Line Items]
Effective date of acquisition			Jul. 11, 2014
Assets acquired			$ 94,100,000
Loans acquired			75,000,000
Assumed deposits			36,200,000
Additional goodwill recorded on acquisition			$ 16,300,000
Urban Partnership Bank, Stone Park branch
Business Acquisition [Line Items]
Effective date of acquisition				May 16, 2014
Liabilities assumed				$ 5,500,000
Assumed deposits				5,400,000
Additional goodwill recorded on acquisition				$ 678,000
FDIC Assisted
Business Acquisition [Line Items]
Number of FDIC assisted banks acquired | financial_institution							9
Policy Billing Services Inc. And Equity Premium Finance Inc.
Business Acquisition [Line Items]
Effective date of acquisition					Apr. 28, 2014
Loans acquired					$ 7,400,000
Additional goodwill recorded on acquisition					$ 6,500,000
Number of affiliated companies acquired					2

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Activity in the Allowance for Credit Losses) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	$ 94,446	$ 92,275	$ 91,705	$ 96,922
Other adjustments	(93)	(105)	(341)	(253)
Reclassification from allowance for unfunded lending-related commitments	4	(146)	(109)	(164)
Charge-offs	(6,510)	(7,859)	(10,781)	(16,876)
Recoveries	2,656	1,275	3,844	2,507
Provision for credit losses	9,701	6,813	15,886	10,117
Allowance for loan losses at period end	100,204	92,253	100,204	92,253
Allowance for unfunded lending-related commitments at period end	884	884	884	884
Allowance for credit losses at period end	101,088	93,137	101,088	93,137
Allowance for credit losses at period end, Individually evaluated for impairment	10,123	10,386	10,123	10,386
Allowance for credit losses at period end, Collectively evaluated for impairment	90,569	82,687	90,569	82,687
Loans at period end, Individually evaluated for impairment	104,577	138,735	104,577	138,735
Loans at period end, Collectively evaluated for impairment	14,949,855	13,120,311	14,949,855	13,120,311
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	396	64	396	64
Loans at period end, Loans acquired with deteriorated credit quality	459,218	490,950	459,218	490,950
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	33,726	24,689	31,699	23,092
Other adjustments	(13)	(22)	(30)	(37)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,243)	(2,384)	(1,920)	(3,032)
Recoveries	285	270	655	587
Provision for credit losses	145	3,485	2,496	5,428
Allowance for loan losses at period end	32,900	26,038	32,900	26,038
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	32,900	26,038	32,900	26,038
Allowance for credit losses at period end, Individually evaluated for impairment	2,282	1,927	2,282	1,927
Allowance for credit losses at period end, Collectively evaluated for impairment	30,600	24,100	30,600	24,100
Loans at period end, Individually evaluated for impairment	11,921	12,397	11,921	12,397
Loans at period end, Collectively evaluated for impairment	4,308,690	3,615,090	4,308,690	3,615,090
Commercial | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	18	11	18	11
Loans at period end, Loans acquired with deteriorated credit quality	9,733	12,943	9,733	12,943
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	37,002	44,605	35,533	48,658
Other adjustments	(81)	(96)	(261)	(217)
Reclassification from allowance for unfunded lending-related commitments	4	(146)	(109)	(164)
Charge-offs	(856)	(2,351)	(1,861)	(6,844)
Recoveries	1,824	342	2,136	487
Provision for credit losses	4,305	(1,652)	6,760	(1,218)
Allowance for loan losses at period end	42,198	40,702	42,198	40,702
Allowance for unfunded lending-related commitments at period end	884	884	884	884
Allowance for credit losses at period end	43,082	41,586	43,082	41,586
Allowance for credit losses at period end, Individually evaluated for impairment	5,602	7,237	5,602	7,237
Allowance for credit losses at period end, Collectively evaluated for impairment	37,145	34,349	37,145	34,349
Loans at period end, Individually evaluated for impairment	65,870	100,068	65,870	100,068
Loans at period end, Collectively evaluated for impairment	4,721,897	4,188,137	4,721,897	4,188,137
Commercial real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	335	0	335	0
Loans at period end, Loans acquired with deteriorated credit quality	62,823	65,267	62,823	65,267
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	12,664	10,966	12,500	12,611
Other adjustments	0	(1)	0	(2)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,847)	(730)	(2,431)	(2,997)
Recoveries	39	122	87	379
Provision for credit losses	1,432	3,561	2,132	3,927
Allowance for loan losses at period end	12,288	13,918	12,288	13,918
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	12,288	13,918	12,288	13,918
Allowance for credit losses at period end, Individually evaluated for impairment	808	636	808	636
Allowance for credit losses at period end, Collectively evaluated for impairment	11,480	13,282	11,480	13,282
Loans at period end, Individually evaluated for impairment	5,909	6,030	5,909	6,030
Loans at period end, Collectively evaluated for impairment	706,441	707,612	706,441	707,612
Home equity | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	0	0	0	0
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	4,096	4,691	4,218	5,108
Other adjustments	(5)	(2)	(8)	(4)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(923)	(689)	(1,554)	(915)
Recoveries	16	74	92	205
Provision for credit losses	1,835	(341)	2,271	(661)
Allowance for loan losses at period end	5,019	3,733	5,019	3,733
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	5,019	3,733	5,019	3,733
Allowance for credit losses at period end, Individually evaluated for impairment	1,387	484	1,387	484
Allowance for credit losses at period end, Collectively evaluated for impairment	3,589	3,196	3,589	3,196
Loans at period end, Individually evaluated for impairment	20,459	18,680	20,459	18,680
Loans at period end, Collectively evaluated for impairment	480,214	430,443	480,214	430,443
Residential real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	43	53	43	53
Loans at period end, Loans acquired with deteriorated credit quality	2,342	2,782	2,342	2,782
Premium finance receivables
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	5,992	5,582	6,513	5,583
Other adjustments	6	16	(42)	7
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,526)	(1,492)	(2,789)	(2,702)
Recoveries	458	314	787	635
Provision for credit losses	1,991	1,889	2,452	2,786
Allowance for loan losses at period end	6,921	6,309	6,921	6,309
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	6,921	6,309	6,921	6,309
Allowance for credit losses at period end, Individually evaluated for impairment	0	0	0	0
Allowance for credit losses at period end, Collectively evaluated for impairment	6,921	6,309	6,921	6,309
Loans at period end, Individually evaluated for impairment	0	0	0	0
Loans at period end, Collectively evaluated for impairment	4,613,563	4,020,414	4,613,563	4,020,414
Premium finance receivables | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	384,320	409,760	384,320	409,760
Consumer and other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	966	1,742	1,242	1,870
Other adjustments	0	0	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(115)	(213)	(226)	(386)
Recoveries	34	153	87	214
Provision for credit losses	(7)	(129)	(225)	(145)
Allowance for loan losses at period end	878	1,553	878	1,553
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	878	1,553	878	1,553
Allowance for credit losses at period end, Individually evaluated for impairment	44	102	44	102
Allowance for credit losses at period end, Collectively evaluated for impairment	834	1,451	834	1,451
Loans at period end, Individually evaluated for impairment	418	1,560	418	1,560
Loans at period end, Collectively evaluated for impairment	119,050	158,615	119,050	158,615
Consumer and other | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	$ 0	$ 198	$ 0	$ 198

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Derivative Financial Instruments Derivative Financial Instruments (Interest Rate Cap Derivative Summary) (Detail) - Jun. 30, 2015 - USD ($) $ in Thousands	Total
Interest Rate Cap Two Hundred Fifteen Million Notional May Two Thousand Sixteen Maturity | Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	May 03, 2016
Notional amount	$ 215,000
Fair Value as of End of Period	$ 2
Interest Rate Cap Fifty Six Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity | Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 22, 2016
Notional amount	$ 56,500
Fair Value as of End of Period	$ 14
Interest Rate Cap One Hundred Million Notional March Two Thousand Seventeen Maturity | Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Mar. 21, 2017
Notional amount	$ 100,000
Fair Value as of End of Period	$ 199
Interest Rate Cap Seventy Five Million Notional November Two Thousand Sixteen Maturity | Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Nov. 16, 2016
Notional amount	$ 75,000
Fair Value as of End of Period	53
Total Interest Rate Cap
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	796,500
Fair Value as of End of Period	$ 782
Cash Flow Hedging | Interest Rate Cap Two Hundred Sixteen Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 29, 2016
Notional amount	$ 216,500
Fair Value as of End of Period	$ 34
Cash Flow Hedging | Interest Rate Cap Forty Three Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 22, 2016
Notional amount	$ 43,500
Fair Value as of End of Period	$ 11
Cash Flow Hedging | Interest Rate Cap Fifty Million Notional September Two Thousand Seventeen Maturity | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Sep. 15, 2017
Notional amount	$ 50,000
Fair Value as of End of Period	$ 253
Cash Flow Hedging | Interest Rate Cap Forty Million Notional September Two Thousand Seventeen Maturity | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Sep. 30, 2017
Notional amount	$ 40,000
Fair Value as of End of Period	216
Cash Flow Hedging | Total Interest Rate Cap | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	350,000
Fair Value as of End of Period	$ 514

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Consolidated Statements Of Condition - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Assets
Cash and due from banks	$ 248,094	$ 225,136	$ 349,013
Federal funds sold and securities purchased under resale agreements	4,115	5,571	7,965
Interest bearing deposits with banks	591,721	998,437	506,871
Available-for-sale securities, at fair value	2,162,061	1,792,078	1,824,240
Trading account securities	1,597	1,206	2,234
Federal Home Loan Bank and Federal Reserve Bank stock	89,818	91,582	84,531
Brokerage customer receivables	29,753	24,221	28,199
Mortgage loans held-for-sale, at fair value	497,283	351,290	363,627
Loans, net of unearned income, excluding covered loans	15,513,650	14,409,398	13,749,996
Covered loans	193,410	226,709	275,154
Total loans	15,707,060	14,636,107	14,025,150
Less: Allowance for loan losses	100,204	91,705	92,253
Less: Allowance for covered loan losses	2,215	2,131	1,667
Net loans	15,604,641	14,542,271	13,931,230
Premises and equipment, net	571,498	555,228	535,281
FDIC indemnification asset	3,429	11,846	46,115
Accrued interest receivable and other assets	556,344	501,882	525,394
Trade date securities receivable	0	485,534	292,366
Goodwill	421,646	405,634	381,721
Other intangible assets	17,924	18,811	16,894
Total assets	20,799,924	20,010,727	18,895,681
Deposits:
Non-interest bearing	3,910,310	3,518,685	3,072,430
Interest bearing	13,172,108	12,763,159	12,483,946
Total deposits	17,082,418	16,281,844	15,556,376
Federal Home Loan Bank advances	444,017	733,050	580,582
Other borrowings	261,908	196,465	43,716
Subordinated notes	140,000	140,000	140,000
Junior subordinated debentures	249,493	249,493	249,493
Trade date securities payable	0	3,828	0
Accrued interest payable and other liabilities	357,106	336,225	327,279
Total liabilities	18,534,942	17,940,905	16,897,446
Preferred stock, no par value; 20,000,000 shares authorized:
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2015, December 31, 2014, and June 30, 2014; 47,762,681 shares issued at June 30, 2015, 46,881,108 shares issued at December 31, 2014, and 46,626,772 shares issued at June 30, 2014	47,763	46,881	46,627
Surplus	1,159,052	1,133,955	1,125,551
Treasury stock, at cost, 85,424 shares at June 30, 2015, 76,053 shares at December 31, 2014, and 73,867 shares at June 30, 2014	(3,964)	(3,549)	(3,449)
Retained earnings	872,690	803,400	737,542
Accumulated other comprehensive loss	(61,871)	(37,332)	(34,503)
Total shareholders' equity	2,264,982	2,069,822	1,998,235
Total liabilities and shareholders' equity	20,799,924	20,010,727	18,895,681
Series C - $1,000 liquidation value; 126,312 shares issued and outstanding at June 30, 2015 and 126,467 shares issued and outstanding at December 31, 2014 and June 30, 2014
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	126,312	126,467	126,467
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2015 and no shares issued and outstanding at December 31, 2014 and June 30, 2014
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	$ 125,000	$ 0	$ 0

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Available-For-Sale Securities (Narrative) (Detail) $ in Billions	Jun. 30, 2015 USD ($) securities	Dec. 31, 2014 USD ($)	Jun. 30, 2014 USD ($)
Available-for-sale Securities [Abstract]
Pledged Securities, carrying value	$ 1.1	$ 1.1	$ 1.1
Number of securities by a single non-goverment sponsored issuer exceeding 10% of shareholders' equity | securities	0

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Consolidated Statements Of Changes In Shareholders Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred stock	Common stock	Surplus	Treasury stock	Retained earnings	Accumulated other comprehensive loss
Balance at Dec. 31, 2013	$ 1,900,589	$ 126,477	$ 46,181	$ 1,117,032	$ (3,000)	$ 676,935	$ (63,036)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	73,041					73,041
Other comprehensive income (loss), net of tax	28,533						28,533
Cash dividends declared on common stock	(9,272)					(9,272)
Dividends on preferred stock	(3,162)					(3,162)
Stock-based compensation	3,754			3,754	0
Conversion of Series C preferred stock to common stock	0	(10)	1	9
Common stock issued for:
Exercise of stock options and warrants	2,506		347	2,472	(313)
Restricted stock awards	39		48	127	(136)
Employee stock purchase plan	1,424		30	1,394
Director compensation plan	783		20	763
Balance at Jun. 30, 2014	1,998,235	126,467	46,627	1,125,551	(3,449)	737,542	(34,503)
Balance at Dec. 31, 2014	2,069,822	126,467	46,881	1,133,955	(3,549)	803,400	(37,332)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	82,883					82,883	0
Other comprehensive income (loss), net of tax	(24,539)						(24,539)
Cash dividends declared on common stock	(10,432)					(10,432)
Dividends on preferred stock	(3,161)					(3,161)
Stock-based compensation	5,286			5,286
Issuance of Series D preferred stock	121,151	125,000	0	(3,849)	0	0	0
Conversion of Series C preferred stock to common stock	0	(155)	4	151
Common stock issued for:
Acquisitions	19,171		422	18,749	0
Exercise of stock options and warrants	2,448		312	2,266	(130)
Restricted stock awards	160		93	352	(285)
Employee stock purchase plan	1,391		31	1,360
Director compensation plan	802		20	782
Balance at Jun. 30, 2015	$ 2,264,982	$ 251,312	$ 47,763	$ 1,159,052	$ (3,964)	$ 872,690	$ (61,871)

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Subsequent Events Subsequent Events (Narrative) (Detail) - Subsequent Event [Member] $ in Millions	Jul. 24, 2015 USD ($) locations	Jul. 17, 2015 USD ($) locations	Jul. 02, 2015	Jul. 01, 2015 USD ($) locations
Community Financial Shares, Inc.
Subsequent Event [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 24, 2015
Number of locations | locations	4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 327
Business Combination, Acquired Receivables, Fair Value	177
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits	301
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Junior Subordinated Debentures	$ 4
Suburban Illinois Bancorp
Subsequent Event [Line Items]
Business Acquisition, Effective Date of Acquisition		Jul. 17, 2015
Number of locations | locations		10
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		$ 480
Business Combination, Acquired Receivables, Fair Value		284
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits		417
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Junior Subordinated Debentures		$ 15
North Bank
Subsequent Event [Line Items]
Business Acquisition, Effective Date of Acquisition			Jul. 01, 2015
Number of locations | locations				2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets				$ 112
Business Combination, Acquired Receivables, Fair Value				55
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits				$ 100

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Narrative) (Detail)		3 Months Ended				6 Months Ended				12 Months Ended
		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Dec. 31, 2014 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number | contracts		6	[1],[2]	7	[1],[2]	9	[1],[2]	13	[1],[2]	17	[3],[4]	22	[3],[4]
Allowance for loan losses related to impaired loans		$ 10,075,000		$ 10,298,000		$ 10,075,000		$ 10,298,000		$ 10,075,000		$ 10,298,000		$ 6,270,000
TDRs		$ 1,317,000	[1],[2]	$ 2,240,000	[1],[2]	$ 1,611,000	[1],[2]	$ 7,485,000	[1],[2]	6,093,000	[3],[4]	13,420,000	[3],[4]
Weighted average extension term		29 months		16 months		27 months		14 months
Weighted average stated interest rate, basis points		4.08%		1.37%		3.67%		1.67%
Weighted average interest only term		29 months		6 months		28 months		9 months
Loan forgiveness		$ 0		$ 0		$ 0		$ 0
Modification to Interest Only Payments
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number | contracts	[1]	1		1		2		4
TDRs	[1]	$ 169,000		$ 220,000		$ 219,000		$ 2,659,000
Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Restructured loans		62,776,000		88,107,000		$ 62,776,000		88,107,000		62,776,000		$ 88,107,000		$ 82,275,000
TDRs, number | contracts						122
Allowance for loan losses related to impaired loans		3,700,000				$ 3,700,000				3,700,000
Interest income, passage of time		94,000		$ 103,000		287,000		$ 235,000
Residential Real Estate [Member] | Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Repossessed Assets		$ 9,400,000				$ 9,400,000				$ 9,400,000

[1] Balances represent the recorded investment in the loan at the time of the restructuring.

[2] TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

[3] Balances represent the recorded investment in the loan at the time of the restructuring.

[4] Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Interest Rate Cap Derivative Summary

Below is a summary of the interest rate cap derivatives held by the Company as of June 30, 2015:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	June 30, 2015
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	2
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	34
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	11
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	14
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	199
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	53
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	253
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	216
		$	796,500		$	782

Schedule Of Fair Value Of Derivative Financial Instruments

The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2015, December 31, 2014 and June 30, 2014:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	514	$	1,390	$	1,663	$	1,573	$	1,994	$	2,727
Interest rate derivatives designated as Fair Value Hedges	39		52		65		—		—		3
Total derivatives designated as hedging instruments under ASC 815	$	553	$	1,442	$	1,728	$	1,573	$	1,994	$	2,730
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	36,194	$	36,399	$	35,733	$	35,032	$	34,927	$	34,003
Interest rate lock commitments	11,990		10,028		13,479		—		20		9
Forward commitments to sell mortgage loans	—		23		27		3,805		4,239		6,901
Foreign exchange contracts	181		72		—		89		—		7
Total derivatives not designated as hedging instruments under ASC 815	$	48,365	$	46,522	$	49,239	$	38,926	$	39,186	$	40,920
Total Derivatives	$	48,918	$	47,964	$	50,967	$	40,499	$	41,180	$	43,650

Schedule Of Cash Flow Hedging Instruments

The table below provides details on each of these cash flow hedges as of June 30, 2015:

	June 30, 2015
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	50,000		(1,027		)
October 2016	25,000		(546		)
Total Interest Rate Swaps	75,000		(1,573		)
Interest Rate Caps:
August 2016	43,500		11
August 2016	216,500		34
September 2017	50,000		253
September 2017	40,000		216
Total Interest Rate Caps	350,000		514
Total Cash Flow Hedges	$	425,000	$	(1,059	)

Rollforward Of Amounts In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedges

A rollforward of the amounts in accumulated other comprehensive loss related to interest rate derivatives designated as cash flow hedges follows:

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Unrealized loss at beginning of period	$	(4,623	)	$	(4,069	)	$	(4,062	)	$	(3,971	)
Amount reclassified from accumulated other comprehensive loss to interest expense on junior subordinated debentures	475			521			889			1,014
Amount of loss recognized in other comprehensive income	(260		)	(1,147		)	(1,235		)	(1,738		)
Unrealized loss at end of period	$	(4,408	)	$	(4,695	)	$	(4,408	)	$	(4,695	)

Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk

The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2015 and 2014:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative Three Months Ended					Amount of (Loss)/Gain Recognized in Income on Hedged Item Three Months Ended					Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Three Months Ended
		June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014		June 30, 2015		June 30, 2014
Interest rate swaps	Trading gains (losses), net	$	17	$	(26	)	$	(15	)	$	25	$	2	$	(1	)

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Losses Recognized in Income on Derivative Six Months Ended						Amount of Gains Recognized in Income on Hedged Item Six Months Ended				Income Statement Losses due to Hedge Ineffectiveness Six Months Ended
		June 30, 2015			June 30, 2014			June 30, 2015		June 30, 2014		June 30, 2015			June 30, 2014
Interest rate swaps	Trading (losses) gains, net	$	(15	)	$	(43	)	$	13	$	40	$	(2	)	$	(3	)

Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives

Amounts included in the Consolidated Statements of Income related to derivative instruments not designated in hedge relationships were as follows:

(Dollars in thousands)		Three Months Ended					Six Months Ended
Derivative	Location in income statement	June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014
Interest rate swaps and caps	Trading gains (losses), net	$	133	$	(737	)	$	(317	)	$	(1,414	)
Mortgage banking derivatives	Mortgage banking revenue	299		(4,885		)	2,393			(1,208		)
Covered call options	Fees from covered call options	4,565		1,244			8,925			2,786
Foreign exchange contracts	Trading gains (losses), net	71		(10		)	20			(11		)

Derivative Asset and Liability Balance Sheet Offsetting

The tables below summarize the Company's interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets									Derivative Liabilities
	Fair Value									Fair Value
(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014			June 30, 2015			December 31, 2014			June 30, 2014
Gross Amounts Recognized	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(1,896		)	(2,771		)	(3,738		)	(1,896		)	(2,771		)	(3,738		)
Collateral Posted (1)	—			—			—			(34,709		)	(34,150		)	(26,354		)
Net Credit Exposure	$	34,851		$	35,070		$	33,723		$	—		$	—		$	6,641

(1) As of June 30, 2015 and December 31, 2014, the Company posted collateral of $36.0 million and $43.8 million, respectively, which resulted in excess collateral with its counterparties. For purposes of this disclosure, the amount of posted collateral is limited to the amount offsetting the derivative liability.

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Debt Disclosure [Abstract]
Federal Home Loan Bank advances	$ 444,017	$ 733,050	$ 580,582
Other borrowings:
Notes payable	75,000	0	0
Securities sold under repurchase agreements	48,295	48,566	24,633
Other	18,556	18,822	19,083
Secured borrowings	120,057	129,077	0
Total other borrowings	261,908	196,465	43,716
Subordinated notes	140,000	140,000	140,000
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$ 845,925	$ 1,069,515	$ 764,298

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Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2015

Share-based Compensation [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

In January 2007, the Company's shareholders approved the 2007 Stock Incentive Plan (“the 2007 Plan”) which initially provided for the issuance of up to 500,000 shares of common stock. In May 2009 and May 2011, the Company's shareholders approved an additional 325,000 shares and 2,860,000 shares, respectively, of common stock that may be offered under the 2007 Plan. The 2007 Plan replaced the Wintrust Financial Corporation 1997 Stock Incentive Plan (“the 1997 Plan”) which had substantially similar terms. In May 2015, the Company’s shareholders approved the 2015 Stock Incentive Plan (“the 2015 Plan”), which replaced the 2007 Plan. The 2015 Plan, the 2007 Plan and the 1997 Plan are collectively referred to as “the Plans.” Under the 2015 Plan 5,485,000 shares of common stock are available for awards. Outstanding awards under the Plans for which common shares are not issued by reason of cancellation, forfeiture, lapse of such award or settlement of such award in cash, are again available under the 2015 Plan. All grants made after the approval of the 2015 Plan will be made pursuant to the 2015 Plan. The Plans cover substantially all employees of Wintrust. The Compensation Committee of the Board of Directors administers all stock-based compensation programs and authorizes all awards granted pursuant to the Plans.

The Plans permit the grant of incentive stock options, nonqualified stock options, stock appreciation rights, stock awards, restricted share or unit awards, performance awards settled in shares of common stock and other incentive awards based in whole or in part by reference to the Company’s common stock. The Company historically awarded stock-based compensation in the form of time-vested nonqualified stock options and time-vested restricted share unit awards (“restricted shares”). The grants of options provide for the purchase shares of Wintrust's common stock at the fair market value of the stock on the date the options are granted. Stock options under the 2015 Plan and the 2007 Plan generally vest ratably over periods of three to five years and have a maximum term of seven years from the date of grant. Stock options granted under the 1997 Plan provided for a maximum term of 10 years. Restricted shares entitle the holders to receive, at no cost, shares of the Company’s common stock. Restricted shares generally vest over periods of one to five years from the date of grant.

Beginning in 2011, the Company has awarded annual grants under the Long-Term Incentive Program (“LTIP”), which is administered under the Plans. The LTIP is designed in part to align the interests of management with the interests of shareholders, foster retention, create a long-term focus based on sustainable results and provide participants a target long-term incentive opportunity. It is anticipated that LTIP awards will continue to be granted annually. LTIP grants to date have consisted of time-vested nonqualified stock options and performance-based stock and cash awards. Performance-based stock and cash awards granted under the LTIP are contingent upon the achievement of pre-established long-term performance goals set in advance by the Compensation Committee over a three-year period starting at the beginning of each calendar year. These performance awards are granted at a target level, and based on the Company’s achievement of the pre-established long-term goals, the actual payouts can range from 0% to a maximum of 150% (for 2015 awards) or 200% (for prior awards) of the target award. The awards vest in the quarter after the end of the performance period upon certification of the payout by the Compensation Committee of the Board of Directors.

Holders of restricted share awards and performance-based stock awards received under the Plans are not entitled to vote or receive cash dividends (or cash payments equal to the cash dividends) on the underlying common shares until the awards are vested. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company.

Stock-based compensation is measured as the fair value of an award on the date of grant, and the measured cost is recognized over the period which the recipient is required to provide service in exchange for the award. The fair values of restricted share and performance-based stock awards are determined based on the average of the high and low trading prices on the grant date, and the fair value of stock options is estimated using a Black-Scholes option-pricing model that utilizes the assumptions outlined in the following table. Option-pricing models require the input of highly subjective assumptions and are sensitive to changes in the option's expected life and the price volatility of the underlying stock, which can materially affect the fair value estimate. Expected life of options granted since the inception of the LTIP awards has been based on the safe harbor rule of the SEC Staff Accounting Bulletin No. 107 “Share-Based Payment” as the Company believes historical exercise data may not provide a reasonable basis to estimate the expected term of these options. Expected stock price volatility is based on historical volatility of the Company's common stock, which correlates with the expected life of the options, and the risk-free interest rate is based on comparable U.S. Treasury rates. Management reviews and adjusts the assumptions used to calculate the fair value of an option on a periodic basis to better reflect expected trends.

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month periods ending June 30, 2015 and 2014.

	Six Months Ended
	June 30,		June 30,
	2015		2014
Expected dividend yield	0.9	%	0.4	%
Expected volatility	26.5	%	30.8	%
Risk-free rate	1.3	%	0.7	%
Expected option life (in years)	4.5		4.5

Stock based compensation is recognized based upon the number of awards that are ultimately expected to vest, taking into account expected forfeitures. In addition, for performance-based awards, an estimate is made of the number of shares expected to vest as a result of projected performance against the performance criteria in the award to determine the amount of compensation expense to recognize. The estimate is reevaluated periodically and total compensation expense is adjusted for any change in estimate in the current period. Stock-based compensation expense recognized in the Consolidated Statements of Income was $3.0 million in the second quarter of 2015 and $2.1 million in the second quarter of 2014, and $5.3 million and $5.9 million for the year-to-date periods, respectively. The first quarter of 2014 includes a $2.1 million charge for a modification to the performance measurement criteria related to the 2011 LTIP performance-based stock grants that were vested and paid out in the first quarter of 2014. The cost of the modification was determined based on the stock price on the date of re-measurement and paid to the holders of the performance-based stock awards in cash.

A summary of the Company's stock option activity for the six months ended June 30, 2015 and June 30, 2014 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2015	1,618,426		$	43.00
Conversion of options of acquired company	16,364		21.18
Granted	493,690		44.17
Exercised	(108,042	)	33.70
Forfeited or canceled	(219,356	)	53.47
Outstanding at June 30, 2015	1,801,082		$	42.40	4.4	$	20,012
Exercisable at June 30, 2015	916,168		$	40.62	2.9	$	11,928

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2014	1,524,672		$	42.00
Granted	364,767		46.85
Exercised	(88,141	)	34.66
Forfeited or canceled	(43,617	)	45.56
Outstanding at June 30, 2014	1,757,681		$	43.29	3.5	$	9,833
Exercisable at June 30, 2014	1,143,629		$	43.98	2.2	$	7,066

(1) Represents the remaining weighted average contractual life in years.

(2) Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company's stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company's stock.

The weighted average grant date fair value per share of options granted during the six months ended June 30, 2015 and June 30, 2014 was $9.69 and $11.96, respectively. The aggregate intrinsic value of options exercised during the six months ended June 30, 2015 and 2014, was $1.6 million and $1.0 million, respectively.

A summary of the Plans' restricted share activity for the six months endedJune 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	146,112		$	47.45	181,522		$	43.39
Granted	14,907		45.35		11,430		46.10
Vested and issued	(14,015	)	38.78		(32,328	)	34.57
Forfeited	—		—		(5,387	)	36.89
Outstanding at June 30	147,004		$	48.07	155,237		$	45.65
Vested, but not issuable at June 30	85,000		$	51.88	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2015 and June 30, 2014 is presented below:

	Six months ended June 30, 2015				Six months ended June 30, 2014
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	295,679		$	38.18	307,512		$	34.01
Granted	104,191		44.17		93,123		46.85
Vested and issued	(78,590	)	31.10		(15,944	)	33.28
Forfeited	(33,522	)	32.62		(87,046	)	33.64
Outstanding at June 30	287,758		$	42.93	297,645		$	38.18

The Company issues new shares to satisfy its obligation to issue shares granted pursuant to the Plans.

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Fair Values of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Summary Of Balances Of Assets And Liabilities Measured At Fair Value On A Recurring Basis

The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

	June 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	281,161	$	—	$	281,161	$	—
U.S. Government agencies	628,660		—		628,660		—
Municipal	269,790		—		211,218		58,572
Corporate notes	128,141		—		128,141		—
Mortgage-backed	800,101		—		800,101		—
Equity securities	54,208		—		29,212		24,996
Trading account securities	1,597		—		1,597		—
Mortgage loans held-for-sale	497,283		—		497,283		—
Mortgage servicing rights	8,034		—		—		8,034
Nonqualified deferred compensation assets	8,778		—		8,778		—
Derivative assets	48,918		—		48,918		—
Total	$	2,726,671	$	—	$	2,635,069	$	91,602
Derivative liabilities	$	40,500	$	—	$	40,500	$	—

	December 31, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	381,805	$	—	$	381,805	$	—
U.S. Government agencies	668,316		—		668,316		—
Municipal	238,529		—		179,576		58,953
Corporate notes	133,579		—		133,579		—
Mortgage-backed	318,710		—		318,710		—
Equity securities	51,139		—		27,428		23,711
Trading account securities	1,206		—		1,206		—
Mortgage loans held-for-sale	351,290		—		351,290		—
Mortgage servicing rights	8,435		—		—		8,435
Nonqualified deferred compensation assets	7,951		—		7,951		—
Derivative assets	47,964		—		47,964		—
Total	$	2,208,924	$	—	$	2,117,825	$	91,099
Derivative liabilities	$	41,180	$	—	$	41,180	$	—

	June 30, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	388,415	$	—	$	388,415	$	—
U.S. Government agencies	766,000		—		766,000		—
Municipal	176,107		—		138,054		38,053
Corporate notes	135,303		—		135,303		—
Mortgage-backed	303,563		—		303,563		—
Equity securities	54,852		—		30,700		24,152
Trading account securities	2,234		—		2,234		—
Mortgage loans held-for-sale	363,627		—		363,627		—
Mortgage servicing rights	8,227		—		—		8,227
Nonqualified deferred compensation assets	7,850		—		7,850		—
Derivative assets	50,967		—		50,967		—
Total	$	2,257,145	$	—	$	2,186,713	$	70,432
Derivative liabilities	$	43,650	$	—	$	43,650	$	—

Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2015 and 2014 are summarized as follows:

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852
Total net gains (losses) included in:
Net income (1)	—			—		182
Other comprehensive income	(713		)	340		—
Purchases	4,175			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(939		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net gains (losses) included in:
Net income (1)	—			—		(401		)
Other comprehensive income	(510		)	1,285		—
Purchases	10,849			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(10,720		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2014	$	39,772		$	23,438	$	8,719
Total net gains (losses) included in:
Net income (1)	—			—		(492		)
Other comprehensive income	73			714		—
Purchases	1,606			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,398		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2014	$	36,386		$	22,163	$	8,946
Total net gains (losses) included in:
Net income (1)	—			—		(719		)
Other comprehensive income	220			1,989		—
Purchases	4,966			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

Summary Of Assets Measured At Fair Value On A Nonrecurring Basis

For assets measured at fair value on a nonrecurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at June 30, 2015.

	June 30, 2015								Three Months Ended June 30, 2015 Fair Value Losses Recognized, net		Six Months Ended June 30, 2014 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	61,713	$	—	$	—	$	61,713	$	3,524	$	6,255
Other real estate owned, including covered other real estate owned (1)	77,499		—		—		77,499		1,483		3,845
Total	$	139,212	$	—	$	—	$	139,212	$	5,007	$	10,100

(1) Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

Schedule Of Valuation Techniques And Significant Unobservable Inputs Used To Measure Both Recurring And Non-Recurring

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at June 30, 2015 were as follows:

(Dollars in thousands)
	Fair Value		Valuation Methodology	Significant Unobservable Input	Range of Inputs	Weighted Average of Inputs	Impact to valuation from an increased or higher input value
Measured at fair value on a recurring basis:
Municipal Securities	$	58,572	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,996		Discounted cash flows	Discount rate	1.77%-2.02%	1.86%	Decrease
Mortgage Servicing Rights	8,034		Discounted cash flows	Discount rate	9%-13%	9.15%	Decrease
				Constant prepayment rate (CPR)	10%-25%	11.83%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	61,713	Appraisal value	N/A	N/A	N/A	N/A
Other real estate owned, including covered other real estate owned	77,499		Appraisal value	Property specific valuation adjustment	(85)%-87%	(3.58)%	Increase

Summary Of Carrying Amounts And Estimated Fair Values Of Financial Instruments

The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

	At June 30, 2015				At December 31, 2014				At June 30, 2014
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	252,209	$	252,209	$	230,707	$	230,707	$	356,978	$	356,978
Interest bearing deposits with banks	591,721		591,721		998,437		998,437		506,871		506,871
Available-for-sale securities	2,162,061		2,162,061		1,792,078		1,792,078		1,824,240		1,824,240
Trading account securities	1,597		1,597		1,206		1,206		2,234		2,234
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	89,818		89,818		91,582		91,582		84,531		84,531
Brokerage customer receivables	29,753		29,753		24,221		24,221		28,199		28,199
Mortgage loans held-for-sale, at fair value	497,283		497,283		351,290		351,290		363,627		363,627
Total loans	15,707,060		16,469,518		14,636,107		15,346,266		14,025,150		14,741,579
Mortgage servicing rights	8,034		8,034		8,435		8,435		8,227		8,227
Nonqualified deferred compensation assets	8,778		8,778		7,951		7,951		7,850		7,850
Derivative assets	48,918		48,918		47,964		47,964		50,967		50,967
FDIC indemnification asset	3,429		3,429		11,846		11,846		46,115		46,115
Accrued interest receivable and other	178,349		178,349		169,156		169,156		165,511		165,511
Total financial assets	$	19,579,010	$	20,341,468	$	18,370,980	$	19,081,139	$	17,470,500	$	18,186,929
Financial Liabilities
Non-maturity deposits	$	13,145,542	$	13,145,542	$	12,142,034	$	12,142,034	$	11,314,162	$	11,314,162
Deposits with stated maturities	3,936,876		3,937,146		4,139,810		4,143,161		4,242,214		4,255,896
Federal Home Loan Bank advances	444,017		448,870		733,050		738,113		580,582		585,792
Other borrowings	261,908		261,908		196,465		197,883		43,716		43,716
Subordinated notes	140,000		142,810		140,000		143,639		140,000		144,899
Junior subordinated debentures	249,493		250,265		249,493		250,305		249,493		250,492
Derivative liabilities	40,500		40,500		41,180		41,180		43,650		43,650
Accrued interest payable	6,827		6,827		8,001		8,001		8,399		8,399
Total financial liabilities	$	18,225,163	$	18,233,868	$	17,650,033	$	17,664,316	$	16,622,216	$	16,647,006

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Subsequent Events

6 Months Ended

Jun. 30, 2015

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On July 24, 2015, the Company acquired Community Financial Shares, Inc. ("CFIS"). CFIS was the parent company of Community Bank - Wheaton/Glen Ellyn ("CBWGE"), which had four banking locations in Wheaton and Glen Ellyn, Illinois. CBWGE was merged into the Company's wholly-owned subsidiary Wheaton Bank. Prior to purchase accounting adjustments, the Company acquired approximately $327 million of assets, including approximately $177 million of loans, assumed approximately $301 million of deposits and assumed approximately $4 million of junior subordinated debentures.

On July 17, 2015, the Company acquired Suburban Illinois Bancorp, Inc. ("Suburban"). Suburban was the parent company of Suburban Bank & Trust Company ("SBT"), which had ten banking locations in Chicago and its suburbs. SBT was merged into the Company's wholly-owned subsidiary Hinsdale Bank. Prior to purchase accounting adjustments, the Company acquired approximately $480 million of assets, including approximately $284 million of loans, assumed approximately $417 million of deposits and assumed approximately $15 million of junior subordinated debentures.

On July 1, 2015, the Company, through its wholly-owned subsidiary Wintrust Bank, acquired North Bank, headquartered in downtown Chicago, Illinois. Through this transaction, prior to purchase accounting adjustments, Wintrust Bank acquired two banking locations and approximately $112 million of assets, including approximately $55 million of loans, and assumed approximately $100 million of deposits.

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Junior Subordinated Debentures Junior Subordinated Debentures (Summary of Junior Subordinated Debentures) (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 249,493	$ 249,493	$ 249,493
Wintrust Capital Trust III
Subordinated Borrowing [Line Items]
Common Securities	774
Trust Preferred Securities	25,000
Junior subordinated debentures	$ 25,774
Rate Structure	L+3.25
Contractual rate	3.53%
Issue Date	Apr. 30, 2003
Maturity Date	Apr. 30, 2033
Earliest Redemption Date	Apr. 30, 2008
Wintrust Statutory Trust IV
Subordinated Borrowing [Line Items]
Common Securities	$ 619
Trust Preferred Securities	20,000
Junior subordinated debentures	$ 20,619
Rate Structure	L+2.80
Contractual rate	3.08%
Issue Date	Dec. 31, 2003
Maturity Date	Dec. 31, 2033
Earliest Redemption Date	Dec. 31, 2008
Wintrust Statutory Trust V
Subordinated Borrowing [Line Items]
Common Securities	$ 1,238
Trust Preferred Securities	40,000
Junior subordinated debentures	$ 41,238
Rate Structure	L+2.60
Contractual rate	2.88%
Issue Date	May 31, 2004
Maturity Date	May 31, 2034
Earliest Redemption Date	Jun. 30, 2009
Wintrust Capital Trust VII
Subordinated Borrowing [Line Items]
Common Securities	$ 1,550
Trust Preferred Securities	50,000
Junior subordinated debentures	$ 51,550
Rate Structure	L+1.95
Contractual rate	2.24%
Issue Date	Dec. 31, 2004
Maturity Date	Mar. 31, 2035
Earliest Redemption Date	Mar. 31, 2010
Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Common Securities	$ 1,238
Trust Preferred Securities	40,000
Junior subordinated debentures	$ 41,238
Rate Structure	L+1.45
Contractual rate	1.73%
Issue Date	Aug. 31, 2005
Maturity Date	Sep. 30, 2035
Earliest Redemption Date	Sep. 30, 2010
Wintrust Capital Trust IX
Subordinated Borrowing [Line Items]
Common Securities	$ 1,547
Trust Preferred Securities	50,000
Junior subordinated debentures	$ 51,547
Rate Structure	L+1.63
Contractual rate	1.92%
Issue Date	Sep. 30, 2006
Maturity Date	Sep. 30, 2036
Earliest Redemption Date	Sep. 30, 2011
Northview Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 186
Trust Preferred Securities	6,000
Junior subordinated debentures	$ 6,186
Rate Structure	L+3.00
Contractual rate	3.28%
Issue Date	Aug. 31, 2003
Maturity Date	Nov. 30, 2033
Earliest Redemption Date	Aug. 31, 2008
Town Bankshares Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 186
Trust Preferred Securities	6,000
Junior subordinated debentures	$ 6,186
Rate Structure	L+3.00
Contractual rate	3.28%
Issue Date	Aug. 31, 2003
Maturity Date	Nov. 30, 2033
Earliest Redemption Date	Aug. 31, 2008
First Northwest Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 155
Trust Preferred Securities	5,000
Junior subordinated debentures	$ 5,155
Rate Structure	L+3.00
Contractual rate	3.28%
Issue Date	May 31, 2004
Maturity Date	May 31, 2034
Earliest Redemption Date	May 31, 2009
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate	2.47%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust III
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.25%
London Interbank Offered Rate (LIBOR) | Wintrust Statutory Trust IV
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	2.80%
London Interbank Offered Rate (LIBOR) | Wintrust Statutory Trust V
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	2.60%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust VII
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.95%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.45%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust IX
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.63%
London Interbank Offered Rate (LIBOR) | Northview Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%
London Interbank Offered Rate (LIBOR) | Town Bankshares Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%
London Interbank Offered Rate (LIBOR) | First Northwest Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%

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Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income	$ 82,883	$ 73,041
Adjustments to reconcile net income to net cash (used for) provided by operating activities
Provision for credit losses	15,561	8,540
Depreciation and amortization	15,813	15,510
Stock-based compensation expense	5,286	3,754
Tax expense from stock-based compensation arrangements	(596)	(61)
Excess tax benefits from stock-based compensation arrangements	(476)	(226)
Net amortization of premium on securities	205	3,419
Mortgage servicing rights fair value change, net	258	712
Originations and purchases of mortgage loans held-for-sale	(2,121,237)	(1,368,131)
Proceeds from sales of mortgage loans held-for-sale	2,034,173	1,371,124
Bank owned life insurance, net of claims	(1,470)	(1,387)
Increase in trading securities, net	(391)	(1,737)
Net (increase) decrease in brokerage customer receivables	(5,532)	2,754
Gains on mortgage loans sold	(58,929)	(32,293)
(Gains) losses on available-for-sale securities, net	(500)	369
Losses on sales of premises and equipment, net	403	561
Net (gains) losses on sales and fair value adjustments of other real estate owned	430	3,360
(Increase) decrease in accrued interest receivable and other assets, net	(38,117)	43,274
Increase in accrued interest payable and other liabilities, net	17,757	4,253
Net Cash (Used for) Provided by Operating Activities	(54,479)	126,836
Investing Activities:
Proceeds from maturities of available-for-sale securities	335,286	213,384
Proceeds from sales of available-for-sale securities	1,134,033	196,042
Purchases of available-for-sale securities	(1,353,356)	(608,800)
Net cash received (paid) for acquisitions	12,004	(7,267)
Proceeds from sales of other real estate owned	24,444	47,160
Proceeds received from the FDIC related to reimbursements on covered assets	150	10,818
Net decrease (increase) in interest bearing deposits with banks	406,784	(11,297)
Net increase in loans	(965,794)	(822,314)
Redemption of bank owned life insurance	2,701	0
Purchases of premises and equipment, net	(25,478)	(17,386)
Net Cash Used for Investing Activities	(429,226)	(999,660)
Financing Activities:
Increase in deposit accounts	630,785	882,631
Increase (decrease) in other borrowings, net	54,575	(211,388)
(Decrease) increase in Federal Home Loan Bank advances, net	(293,584)	163,000
Proceeds from the issuance of preferred stock, net	121,151	0
Proceeds from the issuance of subordinated notes, net	0	139,090
Excess tax benefits from stock-based compensation arrangements	476	226
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	5,812	5,262
Common stock repurchases	(415)	(449)
Dividends paid	(13,593)	(12,434)
Net Cash Provided by Financing Activities	505,207	965,938
Net Increase in Cash and Cash Equivalents	21,502	93,114
Cash and Cash Equivalents at Beginning of Period	230,707	263,864
Cash and Cash Equivalents at End of Period	$ 252,209	$ 356,978

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Consolidated Statements Of Condition (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Preferred stock, no par value
Preferred stock, 20,000,000 shares authorized	20,000,000	20,000,000	20,000,000
Common stock, no par value
Common stock, $1.00 stated value	$ 1.00	$ 1.00	$ 1.00
Common stock, 100,000,000 shares authorized	100,000,000	100,000,000	100,000,000
Common stock, shares issued	47,762,681	46,881,108	46,626,772
Treasury stock, shares	85,424	76,053	73,867
Series C - $1,000 liquidation value; 126,312 shares issued and outstanding at June 30, 2015 and 126,467 shares issued and outstanding at December 31, 2014 and June 30, 2014
Preferred stock, $1,000 liquidation value	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares outstanding	126,312	126,467	126,467
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2015 and no shares issued and outstanding at December 31, 2014 and June 30, 2014
Preferred stock, $1,000 liquidation value	$ 25	$ 0	$ 0
Preferred stock, shares outstanding	5,000,000	0	0

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes

The following table is a summary of notes payable, Federal Home Loan Bank advances, other borrowings and subordinated notes as of the dates shown:

(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014
Federal Home Loan Bank advances	$	444,017	$	733,050	$	580,582
Other borrowings:
Notes payable	75,000		—		—
Securities sold under repurchase agreements	48,295		48,566		24,633
Other	18,556		18,822		19,083
Secured borrowings	120,057		129,077		—
Total other borrowings	261,908		196,465		43,716
Subordinated notes	140,000		140,000		140,000
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	845,925	$	1,069,515	$	764,298

Federal Home Loan Bank Advances

Federal Home Loan Bank advances consist of obligations of the banks and are collateralized by qualifying residential real estate and home equity loans and certain securities. FHLB advances are stated at par value of the debt adjusted for unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

Notes Payable

At June 30, 2015, notes payable represented a $75.0 million term facility ("Term Facility"), which is part of a $150.0 million loan agreement with unaffiliated banks dated December 15, 2014. The agreement consists of the Term Facility and a $75.0 million revolving credit facility ("Revolving Credit Facility"). At June 30, 2015, the Company had an outstanding balance of $75.0 million compared to no outstanding balance at December 31, 2014 under the Term Facility. The Company was required to borrow the entire amount of the Term Facility on June 15, 2015 and all such borrowings must be repaid by June 15, 2020. Beginning September 30, 2015, the Company will be required to make straight-line quarterly amortizing payments on the Term Facility. At June 30, 2015 and December 31, 2014, the Company had no outstanding balance under the Revolving Credit Facility. All borrowings under the Revolving Credit Facility must be repaid by December 14, 2015. Borrowings under the agreement that are considered “Base Rate Loans” bear interest at a rate equal to the sum of (1) 50 basis points (in the case of a borrowing under the Revolving Credit Facility) or 75 basis points (in the case of a borrowing under the Term Facility) plus (2) the highest of (a) the federal funds rate plus 50 basis points, (b) the lender's prime rate, and (c) the Eurodollar Rate (as defined below) that would be applicable for an interest period of one month plus 100 basis points. Borrowings under the agreement that are considered “Eurodollar Rate Loans” bear interest at a rate equal to the sum of (1) 150 basis points (in the case of a borrowing under the Revolving Credit Facility) or 175 basis points (in the case of a borrowing under the Term Facility) plus (2) the LIBOR rate for the applicable period, as adjusted for statutory reserve requirements for eurocurrency liabilities (the “Eurodollar Rate”). A commitment fee is payable quarterly equal to 0.20% of the actual daily amount by which the lenders' commitment under the Revolving Credit Facility exceeded the amount outstanding under such facility.

In prior periods, the Company has had a $101.0 million loan agreement with unaffiliated banks dated as of October 30, 2009, which had been amended at least annually between 2009 and 2014. The agreement consisted of a $100.0 million revolving credit facility, maturing on October 25, 2013, and a $1.0 million term loan maturing on June 1, 2015. In 2013, the Company repaid and terminated the $1.0 million term loan, and amended the agreement, effectively extending the maturity date on the revolving credit facility from October 25, 2013 to November 6, 2014. The agreement was also amended in 2014 effectively extending the term to December 15, 2014 at which time the agreement matured. At June 30, 2014, no amount was outstanding on the $100.0 million revolving credit facility.

Borrowings under the agreements are secured by pledges of and first priority perfected security interests in the Company's equity interest in its bank subsidiaries and contain several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and other indebtedness. At June 30, 2015, the Company was in compliance with all such covenants. The Revolving Credit Facility and the Term Facility are available to be utilized, as needed, to provide capital to fund continued growth at the Company’s banks and to serve as an interim source of funds for acquisitions, common stock repurchases or other general corporate purposes.

Securities Sold Under Repurchase Agreements

At June 30, 2015, December 31, 2014 and June 30, 2014, securities sold under repurchase agreements represent $48.3 million, $48.6 million and $24.6 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of June 30, 2015, the Company had pledged securities related to its customer balances in sweep accounts of $76.6 million. Securities pledged for customer balances in sweep accounts and short-term borrowings from brokers are maintained under the Company’s control and consist of U.S. Government agency, mortgage-backed and corporate securities. These securities are included in the available-for-sale securities portfolio as reflected on the Company’s Consolidated Statements of Condition. The following is a summary of these securities pledged disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

As of June 30, 2015
(Dollars in thousands)	Overnight Sweep Collateral
U.S. Treasury	$	12,625
U.S. Government agencies	23,084
Municipal	7,518
Corporate notes:
Financial issuers	17,932
Mortgage-backed: (1)
Mortgage-backed securities	15,487
Equity securities	—
Total collateral pledged	$	76,646
Excess collateral	28,351
Repurchase Agreements	$	48,295

Other Borrowings

Other borrowings at June 30, 2015 represent a fixed-rate promissory note issued by the Company in August 2012 ("Fixed-Rate Promissory Note") related to and secured by an office building owned by the Company. At June 30, 2015, the Fixed-Rate Promissory Note had an outstanding balance of $18.6 million compared to an outstanding balance of $18.8 million and $19.1 million at December 31, 2014 and June 30, 2014, respectively. Under the Fixed-Rate Promissory Note, the Company will make monthly principal payments and pay interest at a fixed rate of 3.75% until maturity on September 1, 2017.

Secured Borrowings

In December 2014, the Company, through its subsidiary, FIFC Canada, sold an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for a cash payment of approximately C$150 million pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). The proceeds received from the transaction are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party and translated to the Company’s reporting currency as of the respective date. At June 30, 2015 the translated balance of the secured borrowing under the Receivable Purchase Agreement totaled $120.1 million compared to $129.1 million at December 31, 2014. Additionally, the interest rate under the Receivables Purchase Agreement at June 30, 2015 was 1.4928%.

Subordinated Notes

At June 30, 2015, December 31, 2014 and June 30, 2014, the Company had outstanding subordinated notes totaling $140.0 million. In the second quarter of 2014, the Company issued $140.0 million of subordinated notes receiving $139.1 million in net proceeds. The notes have a stated interest rate of 5.00% and mature in June 2024.

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Shareholders' Equity And Earnings Per Share (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands						1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
	May. 21, 2015	May. 07, 2015	Feb. 19, 2015	Feb. 05, 2015	Dec. 19, 2008	Jun. 30, 2015	Apr. 30, 2015	Jan. 31, 2015	Mar. 31, 2012	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Jun. 25, 2015
Temporary Equity [Line Items]
Cash dividends declared per common share (in usd per share)							$ 0.11	$ 0.11		$ 0.11	$ 0.10	$ 0.22	$ 0.20
Common stock dividends per share declared annualized							$ 0.44	$ 0.44
Dividends payable, date to be paid	May 21, 2015		Feb. 19, 2015
Dividends payable, date of record		May 07, 2015		Feb. 05, 2015
Delavan Bancshares
Temporary Equity [Line Items]
Common stock, shares issued, acquisition								422,121
US Treasury [Member]
Temporary Equity [Line Items]
Warrants outstanding					1,643,295	557,068				557,068		557,068
Investment warrants, exercise price					$ 22.82
Warrant termination period					10 years
Warrants exercised												380,349
Common stock, shares, issued from exercise of warrant shares												203,887
Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, shares issued															5,000,000,000,000
Preferred stock, liquidation value per share						$ 25				$ 25	$ 0	$ 25	$ 0	$ 0	$ 25
Preferred stock, value						$ 125,000				$ 125,000	$ 0	$ 125,000	$ 0	$ 0	$ 125,000
Preferred stock, Dividend payment terms						quarterly
Preferred stock, dividend rate, percentage						6.50%
Series C Preferred Stock
Temporary Equity [Line Items]
Preferred stock, shares issued									126,500
Preferred stock, liquidation value per share						$ 1,000			$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000
Preferred stock, value						$ 126,312			$ 126,500	$ 126,312	$ 126,467	$ 126,312	$ 126,467	$ 126,467
Preferred stock, Dividend payment terms									quarterly
Preferred stock, dividend rate, percentage									5.00%
Convertible preferred stock, terms of conversion									24.3132
Preferred stock, shares converted												155		10
Common stock, shares, conversion of preferred stock												3,767		244
London Interbank Offered Rate (LIBOR) [Member] | Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, dividend rate, percentage, variable spread						4.06%

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Shareholders' Equity and Earnings Per Share Shareholders' Equity And Earnings Per Share (Other Comprehensive Income Reclassified from AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
(Losses) gains on available-for-sale securities, net	$ (24)	$ (336)	$ 500	$ (369)
Interest on junior subordinated debentures	1,977	2,042	3,910	4,046
Income before taxes	70,126	63,031	133,161	119,371
Income tax expense	(26,295)	(24,490)	(50,278)	(46,330)
Net income	43,831	38,541	82,883	73,041
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Accumulated Unrealized Losses on Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
(Losses) gains on available-for-sale securities, net	(24)	(336)	500	(369)
Income before taxes	(24)	(336)	500	(369)
Income tax expense	10	133	(196)	146
Net income	(14)	(203)	304	(223)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Accumulated Unrealized Losses on Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest on junior subordinated debentures	457	521	871	1,014
Income before taxes	(457)	(521)	(871)	(1,014)
Income tax expense	179	207	341	403
Net income	$ (278)	$ (314)	$ (530)	$ (611)

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Entity Current Reporting Status	Yes
Trading Symbol	WTFC
Entity Registrant Name	WINTRUST FINANCIAL CORP
Entity Central Index Key	0001015328
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		48,230,299

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Junior Subordinated Debentures

6 Months Ended

Jun. 30, 2015

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Junior Subordinated Debentures

Junior Subordinated Debentures

As of June 30, 2015, the Company owned 100% of the common securities of nine trusts, Wintrust Capital Trust III, Wintrust Statutory Trust IV, Wintrust Statutory Trust V, Wintrust Capital Trust VII, Wintrust Capital Trust VIII, Wintrust Capital Trust IX, Northview Capital Trust I, Town Bankshares Capital Trust I, and First Northwest Capital Trust I (the “Trusts”) set up to provide long-term financing. The Northview, Town and First Northwest capital trusts were acquired as part of the acquisitions of Northview Financial Corporation, Town Bankshares, Ltd., and First Northwest Bancorp, Inc., respectively. The Trusts were formed for purposes of issuing trust preferred securities to third-party investors and investing the proceeds from the issuance of the trust preferred securities and common securities solely in junior subordinated debentures issued by the Company (or assumed by the Company in connection with an acquisition), with the same maturities and interest rates as the trust preferred securities. The junior subordinated debentures are the sole assets of the Trusts. In each Trust, the common securities represent approximately 3% of the junior subordinated debentures and the trust preferred securities represent approximately 97% of the junior subordinated debentures.

The Trusts are reported in the Company’s consolidated financial statements as unconsolidated subsidiaries. Accordingly, in the Consolidated Statements of Condition, the junior subordinated debentures issued by the Company to the Trusts are reported as liabilities and the common securities of the Trusts, all of which are owned by the Company, are included in available-for-sale securities.

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2015. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2015		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.53	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.08	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	2.88	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.24	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		40,000		41,238		L+1.45	1.73	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	1.92	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.28	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.28	%	05/2004	05/2034	05/2009
Total					$	249,493		2.47	%

The junior subordinated debentures totaled $249.5 million at June 30, 2015, December 31, 2014 and June 30, 2014.

The interest rates on the variable rate junior subordinated debentures are based on the three-month LIBOR rate and reset on a quarterly basis. At June 30, 2015, the weighted average contractual interest rate on the junior subordinated debentures was 2.47%. The Company entered into interest rate swaps and caps with an aggregate notional value of $225 million to hedge the variable cash flows on certain junior subordinated debentures. The hedge-adjusted rate on the junior subordinated debentures as of June 30, 2015, was 3.28%. Distributions on the common and preferred securities issued by the Trusts are payable quarterly at a rate per annum equal to the interest rates being earned by the Trusts on the junior subordinated debentures. Interest expense on the junior subordinated debentures is deductible for income tax purposes.

The Company has guaranteed the payment of distributions and payments upon liquidation or redemption of the trust preferred securities, in each case to the extent of funds held by the Trusts. The Company and the Trusts believe that, taken together, the obligations of the Company under the guarantees, the junior subordinated debentures, and other related agreements provide, in the aggregate, a full, irrevocable and unconditional guarantee, on a subordinated basis, of all of the obligations of the Trusts under the trust preferred securities. Subject to certain limitations, the Company has the right to defer the payment of interest on the junior subordinated debentures at any time, or from time to time, for a period not to exceed 20 consecutive quarters. The trust preferred securities are subject to mandatory redemption, in whole or in part, upon repayment of the junior subordinated debentures at maturity or their earlier redemption. The junior subordinated debentures are redeemable in whole or in part prior to maturity at any time after the earliest redemption dates shown in the table, and earlier at the discretion of the Company if certain conditions are met, and, in any event, only after the Company has obtained Federal Reserve approval, if then required under applicable guidelines or regulations.

Prior to January 1, 2015, the junior subordinated debentures, subject to certain limitations, qualified as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations could, subject to other restrictions, be included in Tier 2 capital. At December 31, 2014 and June 30, 2014, all of the junior subordinated debentures, net of the common securities, were included in the Company's Tier 1 regulatory capital. Starting in 2015, a portion of these junior subordinated debentures still qualified as Tier 1 regulatory capital of the Company and the amount in excess of those certain limitations, subject to certain restrictions, was included in Tier 2 capital. At June 30, 2015, $60.5 million and $181.5 million of the junior subordinated debentures, net of common securities, were included in the Company's Tier 1 and Tier 2 regulatory capital, respectively.

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Fair Values Of Assets And Liabilities (Summary Of Balances Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	$ 2,162,061	$ 1,792,078	$ 1,824,240
Trading account securities	1,597	1,206	2,234
Mortgage loans held-for-sale, at fair value	497,283	351,290	363,627
Derivative assets	36,747	37,841	37,461
Derivative liabilities	36,605	36,921	36,733
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	281,161	381,805	388,415
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	628,660	668,316	766,000
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	269,790	238,529	176,107
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	800,101	318,710	303,563
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	54,208	51,139	54,852
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,597	1,206	2,234
Mortgage loans held-for-sale, at fair value	497,283	351,290	363,627
Mortgage servicing rights	8,034	8,435	8,227
Nonqualified deferred compensation assets	8,778	7,951	7,850
Derivative assets	48,918	47,964	50,967
Total	2,726,671	2,208,924	2,257,145
Derivative liabilities	40,500	41,180	43,650
Fair Value, Measurements, Recurring | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	281,161	381,805	388,415
Fair Value, Measurements, Recurring | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	628,660	668,316	766,000
Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	269,790	238,529	176,107
Fair Value, Measurements, Recurring | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	128,141	133,579	135,303
Fair Value, Measurements, Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	800,101	318,710	303,563
Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	54,208	51,139	54,852
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,597	1,206	2,234
Mortgage loans held-for-sale, at fair value	497,283	351,290	363,627
Mortgage servicing rights	0	0	0
Nonqualified deferred compensation assets	8,778	7,951	7,850
Derivative assets	48,918	47,964	50,967
Total	2,635,069	2,117,825	2,186,713
Derivative liabilities	40,500	41,180	43,650
Fair Value, Measurements, Recurring | Level 2 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	281,161	381,805	388,415
Fair Value, Measurements, Recurring | Level 2 | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	628,660	668,316	766,000
Fair Value, Measurements, Recurring | Level 2 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	211,218	179,576	138,054
Fair Value, Measurements, Recurring | Level 2 | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	128,141	133,579	135,303
Fair Value, Measurements, Recurring | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	800,101	318,710	303,563
Fair Value, Measurements, Recurring | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	29,212	27,428	30,700
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	0	0	0
Mortgage loans held-for-sale, at fair value	0	0	0
Mortgage servicing rights	8,034	8,435	8,227
Nonqualified deferred compensation assets	0	0	0
Derivative assets	0	0	0
Total	91,602	91,099	70,432
Derivative liabilities	0	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0	0
Fair Value, Measurements, Recurring | Level 3 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	58,572	58,953	38,053
Fair Value, Measurements, Recurring | Level 3 | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0	0
Fair Value, Measurements, Recurring | Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0	0
Fair Value, Measurements, Recurring | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	$ 24,996	$ 23,711	$ 24,152

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Shareholders' Equity And Earnings Per Share (Components Of Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (31,091)	$ (56,753)	$ (37,332)	$ (63,036)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(31,072)	21,733	(24,765)	27,699
Amount reclassified from accumulated other comprehensive income (loss), net of tax	292	517	226	834
Other comprehensive income, net of tax	(30,780)	22,250	(24,539)	28,533
Balance at end of period	(61,871)	(34,503)	(61,871)	(34,503)
Accumulated Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	6,094	(39,923)	(9,533)	(53,665)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(32,441)	15,717	(16,496)	29,439
Amount reclassified from accumulated other comprehensive income (loss), net of tax	14	203	(304)	223
Other comprehensive income, net of tax	(32,427)	15,920	(16,800)	29,662
Balance at end of period	(26,333)	(24,003)	(26,333)	(24,003)
Accumulated Unrealized Losses on Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(2,858)	(2,521)	(2,517)	(2,462)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(147)	(691)	(740)	(1,047)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	278	314	530	611
Other comprehensive income, net of tax	131	(377)	(210)	(436)
Balance at end of period	(2,727)	(2,898)	(2,727)	(2,898)
Accumulated Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(34,327)	(14,309)	(25,282)	(6,909)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,516	6,707	(7,529)	(693)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0
Other comprehensive income, net of tax	1,516	6,707	(7,529)	(693)
Balance at end of period	$ (32,811)	$ (7,602)	$ (32,811)	$ (7,602)

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Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest income
Interest and fees on loans	$ 159,823	$ 151,984	$ 314,499	$ 299,014
Interest bearing deposits with banks	305	319	621	568
Federal funds sold and securities purchased under resale agreements	1	6	3	10
Available-for-sale securities	14,071	13,309	28,471	26,423
Trading account securities	51	5	64	14
Federal Home Loan Bank and Federal Reserve Bank stock	785	727	1,554	1,438
Brokerage customer receivables	205	200	386	409
Total interest income	175,241	166,550	345,598	327,876
Interest expense
Interest on deposits	11,996	11,759	23,810	23,682
Interest on Federal Home Loan Bank advances	1,812	2,705	3,968	5,348
Interest on other borrowings	787	510	1,575	1,260
Interest on subordinated notes	1,777	354	3,552	354
Interest on junior subordinated debentures	1,977	2,042	3,910	4,046
Total interest expense	18,349	17,370	36,815	34,690
Net interest income	156,892	149,180	308,783	293,186
Provision for credit losses	9,482	6,660	15,561	8,540
Net interest income after provision for credit losses	147,410	142,520	293,222	284,646
Non-interest income
Wealth management	18,476	18,222	36,576	35,035
Mortgage banking	36,007	23,804	63,807	40,232
Service charges on deposit accounts	6,474	5,688	12,771	11,034
(Losses) gains on available-for-sale securities, net	(24)	(336)	500	(369)
Fees from covered call options	4,565	1,244	8,925	2,786
Trading gains (losses), net	160	(743)	(317)	(1,395)
Other	11,355	6,223	19,292	12,308
Total non-interest income	77,013	54,102	141,554	99,631
Non-interest expense
Salaries and employee benefits	94,421	81,963	184,551	161,897
Equipment	7,914	7,223	15,750	14,626
Occupancy, net	11,401	9,850	23,752	20,843
Data processing	6,081	4,543	11,529	9,258
Advertising and marketing	6,406	3,558	10,313	6,374
Professional fees	5,074	4,046	9,738	7,500
Amortization of other intangible assets	934	1,156	1,947	2,319
FDIC insurance	3,047	3,196	6,034	6,147
OREO expense, net	841	2,490	2,252	6,466
Other	18,178	15,566	35,749	29,476
Total non-interest expense	154,297	133,591	301,615	264,906
Income before taxes	70,126	63,031	133,161	119,371
Income tax expense	26,295	24,490	50,278	46,330
Net income	43,831	38,541	82,883	73,041
Preferred stock dividends and discount accretion	1,580	1,581	3,161	3,162
Net income applicable to common shares	$ 42,251	$ 36,960	$ 79,722	$ 69,879
Net income per common share-Basic (in usd per share)	$ 0.89	$ 0.79	$ 1.68	$ 1.51
Net income per common share-Diluted (in usd per share)	0.85	0.76	1.61	1.44
Cash dividends declared per common share (in usd per share)	$ 0.11	$ 0.10	$ 0.22	$ 0.20
Weighted average common shares outstanding	47,567	46,520	47,404	46,358
Dilutive potential common shares	4,156	4,402	4,220	4,456
Average common shares and dilutive common shares	51,723	50,922	51,624	50,814

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Available-For-Sale Securities

6 Months Ended

Jun. 30, 2015

Available-for-sale Securities [Abstract]

Investments in Debt and Marketable Equity Securities

Available-For-Sale Securities

The following tables are a summary of the available-for-sale securities portfolio as of the dates shown:

	June 30, 2015
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	288,196	$	138	$	(7,173	)	$	281,161
U.S. Government agencies	651,737		2,074		(25,151		)	628,660
Municipal	269,562		4,222		(3,994		)	269,790
Corporate notes:
Financial issuers	124,924		1,773		(1,289		)	125,408
Other	2,726		9		(2		)	2,733
Mortgage-backed: (1)
Mortgage-backed securities	777,087		4,053		(23,499		)	757,641
Collateralized mortgage obligations	42,550		342		(432		)	42,460
Equity securities	48,740		5,876		(408		)	54,208
Total available-for-sale securities	$	2,205,522	$	18,487	$	(61,948	)	$	2,162,061

	December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	388,713	$	84	$	(6,992	)	$	381,805
U.S. Government agencies	686,106		4,113		(21,903		)	668,316
Municipal	234,951		5,318		(1,740		)	238,529
Corporate notes:
Financial issuers	129,309		2,006		(1,557		)	129,758
Other	3,766		55		—			3,821
Mortgage-backed: (1)
Mortgage-backed securities	271,129		5,448		(4,928		)	271,649
Collateralized mortgage obligations	47,347		249		(535		)	47,061
Equity securities	46,592		4,872		(325		)	51,139
Total available-for-sale securities	$	1,807,913	$	22,145	$	(37,980	)	$	1,792,078

	June 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	399,031	$	354	$	(10,970	)	$	388,415
U.S. Government agencies	798,889		4,458		(37,347		)	766,000
Municipal	173,664		4,385		(1,942		)	176,107
Corporate notes:
Financial issuers	129,211		2,402		(1,387		)	130,226
Other	4,980		97		—			5,077
Mortgage-backed: (1)
Mortgage-backed securities	255,082		5,190		(9,097		)	251,175
Collateralized mortgage obligations	52,672		389		(673		)	52,388
Equity securities	50,594		4,634		(376		)	54,852
Total available-for-sale securities	$	1,864,123	$	21,909	$	(61,792	)	$	1,824,240

(1) Consisting entirely of residential mortgage-backed securities, none of which are subprime.

The following table presents the portion of the Company’s available-for-sale securities portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2015:

	Continuous unrealized losses existing for less than 12 months					Continuous unrealized losses existing for greater than 12 months					Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury	$	207,997	$	(7,173	)	$	—	$	—		$	207,997	$	(7,173	)
U.S. Government agencies	231,514		(8,817		)	248,487		(16,334		)	480,001		(25,151		)
Municipal	96,407		(2,545		)	37,578		(1,449		)	133,985		(3,994		)
Corporate notes:
Financial issuers	13,117		(94		)	44,762		(1,195		)	57,879		(1,289		)
Other	998		(2		)	—		—			998		(2		)
Mortgage-backed:
Mortgage-backed securities	551,405		(16,869		)	120,626		(6,630		)	672,031		(23,499		)
Collateralized mortgage obligations	5,158		(31		)	9,877		(401		)	15,035		(432		)
Equity securities	2,909		(37		)	8,505		(371		)	11,414		(408		)
Total	$	1,109,505	$	(35,568	)	$	469,835	$	(26,380	)	$	1,579,340	$	(61,948	)

The Company conducts a regular assessment of its investment securities to determine whether securities are other-than-temporarily impaired considering, among other factors, the nature of the securities, credit ratings or financial condition of the issuer, the extent and duration of the unrealized loss, expected cash flows, market conditions and the Company’s ability to hold the securities through the anticipated recovery period.

The Company does not consider securities with unrealized losses at June 30, 2015 to be other-than-temporarily impaired. The Company does not intend to sell these investments and it is more likely than not that the Company will not be required to sell these investments before recovery of the amortized cost bases, which may be the maturity dates of the securities. The unrealized losses within each category have occurred as a result of changes in interest rates, market spreads and market conditions subsequent to purchase. Securities with continuous unrealized losses existing for more than twelve months were primarily agency bonds and mortgage-backed securities. Unrealized losses recognized on agency bonds and mortgage-backed securities are the result of increases in yields for similar types of securities which also have a longer duration and maturity.

The following table provides information as to the amount of gross gains and gross losses realized and proceeds received through the sales of available-for-sale investment securities:

	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2015			2014			2015			2014
Realized gains	$	14		$	99		$	567		$	154
Realized losses	(38		)	(435		)	(67		)	(523		)
Net realized (losses) gains	$	(24	)	$	(336	)	$	500		$	(369	)
Other than temporary impairment charges	—			—			—			—
(Losses) gains on available-for-sale securities, net	$	(24	)	$	(336	)	$	500		$	(369	)
Proceeds from sales of available-for-sale securities	$	498,501		$	169,753		$	1,134,033		$	196,042

The amortized cost and fair value of securities as of June 30, 2015, December 31, 2014 and June 30, 2014, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2015				December 31, 2014				June 30, 2014
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	141,792	$	141,897	$	285,596	$	285,889	$	173,991	$	174,220
Due in one to five years	261,285		261,146		172,647		172,885		361,300		362,423
Due in five to ten years	291,451		285,192		331,389		325,644		319,641		310,196
Due after ten years	642,617		619,517		653,213		637,811		650,843		618,986
Mortgage-backed	819,637		800,101		318,476		318,710		307,754		303,563
Equity securities	48,740		54,208		46,592		51,139		50,594		54,852
Total available-for-sale securities	$	2,205,522	$	2,162,061	$	1,807,913	$	1,792,078	$	1,864,123	$	1,824,240

Securities having a carrying value of $1.1 billion at June 30, 2015, December 31, 2014 and June 30, 2014, were pledged as collateral for public deposits, trust deposits, FHLB advances, securities sold under repurchase agreements and derivatives. At June 30, 2015, there were no securities of a single issuer, other than U.S. Government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

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Cash and Cash Equivalents

6 Months Ended

Jun. 30, 2015

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents

Cash and Cash Equivalents

For purposes of the Consolidated Statements of Cash Flows, the Company considers cash and cash equivalents to include cash on hand, cash items in the process of collection, non-interest bearing amounts due from correspondent banks, federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

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Shareholders' Equity and Earnings Per Share

6 Months Ended

Jun. 30, 2015

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Shareholders' Equity and Earnings Per Share

Shareholders’ Equity and Earnings Per Share

Series D Preferred Stock

In June 2015, the Company issued and sold 5,000,000 shares of fixed-to-floating non-cumulative perpetual preferred stock, Series D, liquidation preference $25 per share (the “Series D Preferred Stock”) for $125.0 million in an equity offering. If declared, dividends on the Series D Preferred Stock are payable quarterly in arrears at a fixed rate of 6.50% per annum from the original issuance date to, but excluding, July 15, 2025, and from (and including) that date at a floating rate equal to three-month LIBOR plus a spread of 4.06% per annum.

Series C Preferred Stock

In March 2012, the Company issued and sold 126,500 shares of non-cumulative perpetual convertible preferred stock, Series C, liquidation preference $1,000 per share (the “Series C Preferred Stock”) for $126.5 million in an equity offering. If declared, dividends on the Series C Preferred Stock are payable quarterly in arrears at a rate of 5.00% per annum. The Series C Preferred Stock is convertible into common stock at the option of the holder at a conversion rate of 24.3132 shares of common stock per share of Series C Preferred Stock subject to customary anti-dilution adjustments. In the first six months of 2015, pursuant to such terms, 155 shares of the Series C Preferred Stock were converted at the option of the respective holders into 3,767 shares of the Company's common stock. In 2014, 10 shares of the Series C Preferred Stock were converted at the option of the respective holders into 244 shares of the Company's common stock. On and after April 15, 2017, the Company will have the right under certain circumstances to cause the Series C Preferred Stock to be converted into common stock if the closing price of the Company’s common stock exceeds a certain amount.

Common Stock Warrant

Pursuant to the U.S. Department of the Treasury’s (the “U.S. Treasury”) Capital Purchase Program, on December 19, 2008, the Company issued to the U.S. Treasury a warrant to exercise 1,643,295 warrant shares of Wintrust common stock at a per share exercise price of $22.82, subject to customary anti-dilution adjustments, and with a term of 10 years. In February 2011, the U.S. Treasury sold all of its interest in the warrant issued to it in a secondary underwritten public offering. During the first six months of 2015, certain holders of the interest in the warrant exercised 380,349 warrant shares at the exercise price, which resulted in 203,887 shares of common stock issued. At June 30, 2015, all remaining holders of the interest in the warrant are able to exercise 557,068 warrant shares.

Other

In January 2015, the Company issued 422,121 shares of its common stock in the acquisition of Delavan.

At the January 2015 Board of Directors meeting, a quarterly cash dividend of $0.11 per share ($0.44 on an annualized basis) was

declared. It was paid on February 19, 2015 to shareholders of record as of February 5, 2015. At the April 2015 Board of Directors meeting, a quarterly cash dividend of $0.11 per share ($0.44 on an annualized basis) was declared. It was paid on May 21, 2015 to shareholders of record as of May 7, 2015.

Accumulated Other Comprehensive Income (Loss)

The following tables summarize the components of other comprehensive income (loss), including the related income tax effects, and the related amount reclassified to net income for the periods presented (in thousands).

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)
Other comprehensive (loss) income during the period, net of tax, before reclassifications	(32,441		)	(147		)	1,516			(31,072		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	14			278			—			292
Net other comprehensive (loss) income during the period, net of tax	$	(32,427	)	$	131		$	1,516		$	(30,780	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive loss during the period, net of tax, before reclassifications	(16,496		)	(740		)	(7,529		)	(24,765		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(304		)	530			—			226
Net other comprehensive loss during the period, net of tax	$	(16,800	)	$	(210	)	$	(7,529	)	$	(24,539	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at April 1, 2014	$	(39,923	)	$	(2,521	)	$	(14,309	)	$	(56,753	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,717			(691		)	6,707			21,733
Amount reclassified from accumulated other comprehensive income (loss), net of tax	203			314			—			517
Net other comprehensive income (loss) during the period, net of tax	$	15,920		$	(377	)	$	6,707		$	22,250
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)
Balance at January 1, 2014	$	(53,665	)	$	(2,462	)	$	(6,909	)	$	(63,036	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	29,439			(1,047		)	(693		)	27,699
Amount reclassified from accumulated other comprehensive income (loss), net of tax	223			611			—			834
Net other comprehensive income (loss) during the period, net of tax	$	29,662		$	(436	)	$	(693	)	$	28,533
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2015			2014			2015			2014
Accumulated unrealized losses on securities
(Losses) gains included in net income	$	(24	)	$	(336	)	$	500		$	(369	)	(Losses) gains on available-for-sale securities, net
	(24		)	(336		)	500			(369		)	Income before taxes
Tax effect	$	10		$	133		$	(196	)	$	146		Income tax expense
Net of tax	$	(14	)	$	(203	)	$	304		$	(223	)	Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on junior subordinated debentures	$	457		$	521		$	871		$	1,014		Interest on junior subordinated debentures
	(457		)	(521		)	(871		)	(1,014		)	Income before taxes
Tax effect	$	179		$	207		$	341		$	403		Income tax expense
Net of tax	$	(278	)	$	(314	)	$	(530	)	$	(611	)	Net income

Earnings per Share

The following table shows the computation of basic and diluted earnings per share for the periods indicated:

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2015		June 30, 2014		June 30, 2015		June 30, 2015
Net income		$	43,831	$	38,541	$	82,883	$	73,041
Less: Preferred stock dividends and discount accretion		1,580		1,581		3,161		3,162
Net income applicable to common shares—Basic	(A)	42,251		36,960		79,722		69,879
Add: Dividends on convertible preferred stock, if dilutive		1,580		1,581		3,161		3,162
Net income applicable to common shares—Diluted	(B)	43,831		38,541		82,883		73,041
Weighted average common shares outstanding	(C)	47,567		46,520		47,404		46,358
Effect of dilutive potential common shares
Common stock equivalents		1,085		1,327		1,149		1,381
Convertible preferred stock, if dilutive		3,071		3,075		3,071		3,075
Total dilutive potential common shares		4,156		4,402		4,220		4,456
Weighted average common shares and effect of dilutive potential common shares	(D)	51,723		50,922		51,624		50,814
Net income per common share:
Basic	(A/C)	$	0.89	$	0.79	$	1.68	$	1.51
Diluted	(B/D)	$	0.85	$	0.76	$	1.61	$	1.44

Potentially dilutive common shares can result from stock options, restricted stock unit awards, stock warrants, the Company’s convertible preferred stock and shares to be issued under the Employee Stock Purchase Plan and the Directors Deferred Fee and Stock Plan, being treated as if they had been either exercised or issued, computed by application of the treasury stock method. While potentially dilutive common shares are typically included in the computation of diluted earnings per share, potentially dilutive common shares are excluded from this computation in periods in which the effect would reduce the loss per share or increase the income per share. For diluted earnings per share, net income applicable to common shares can be affected by the conversion of the Company’s convertible preferred stock. Where the effect of this conversion would reduce the loss per share or increase the income per share, net income applicable to common shares is not adjusted by the associated preferred dividends.

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Segment Information

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Segment Information

Segment Information

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management.

The three reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of the fifteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated into one reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans originated by the specialty finance segment and sold to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note 9 — Deposits, for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment's risk-weighted assets.

The segment financial information provided in the following tables has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the segments are substantially similar to as those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2014 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

The following is a summary of certain operating information for reportable segments:

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	126,964		$	121,228		$	5,736		5	%
Specialty Finance	21,338			19,792			1,546			8
Wealth Management	4,280			4,006			274			7
Total Operating Segments	152,582			145,026			7,556			5
Intersegment Eliminations	4,310			4,154			156			4
Consolidated net interest income	$	156,892		$	149,180		$	7,712		5	%
Non-interest income:
Community Banking	$	56,253		$	33,337		$	22,916		69	%
Specialty Finance	9,135			8,455			680			8
Wealth Management	19,013			19,235			(222		)	(1	)
Total Operating Segments	84,401			61,027			23,374			38
Intersegment Eliminations	(7,388		)	(6,925		)	(463		)	(7	)
Consolidated non-interest income	$	77,013		$	54,102		$	22,911		42	%
Net revenue:
Community Banking	$	183,217		$	154,565		$	28,652		19	%
Specialty Finance	30,473			28,247			2,226			8
Wealth Management	23,293			23,241			52			—
Total Operating Segments	236,983			206,053			30,930			15
Intersegment Eliminations	(3,078		)	(2,771		)	(307		)	(11	)
Consolidated net revenue	$	233,905		$	203,282		$	30,623		15	%
Segment profit:
Community Banking	$	29,133		$	24,628		$	4,505		18	%
Specialty Finance	11,378			10,302			1,076			10
Wealth Management	3,320			3,611			(291		)	(8	)
Consolidated net income	$	43,831		$	38,541		$	5,290		14	%
Segment assets:
Community Banking	$	17,321,956		$	15,669,443		$	1,652,513		11	%
Specialty Finance	2,931,975			2,703,761			228,214			8
Wealth Management	545,993			522,477			23,516			5
Consolidated total assets	$	20,799,924		$	18,895,681		$	1,904,243		10	%

	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	249,645		$	237,983		$	11,662		5	%
Specialty Finance	42,384			39,004			3,380			9
Wealth Management	8,469			8,105			364			4
Total Operating Segments	300,498			285,092			15,406			5
Intersegment Eliminations	8,285			8,094			191			2
Consolidated net interest income	$	308,783		$	293,186		$	15,597		5	%
Non-interest income:
Community Banking	$	101,165		$	60,656		$	40,509		67	%
Specialty Finance	17,006			16,336			670			4
Wealth Management	37,741			36,176			1,565			4
Total Operating Segments	155,912			113,168			42,744			38
Intersegment Eliminations	(14,358		)	(13,537		)	(821		)	(6	)
Consolidated non-interest income	$	141,554		$	99,631		$	41,923		42	%
Net revenue:
Community Banking	$	350,810		$	298,639		$	52,171		17	%
Specialty Finance	59,390			55,340			4,050			7
Wealth Management	46,210			44,281			1,929			4
Total Operating Segments	456,410			398,260			58,150			15
Intersegment Eliminations	(6,073		)	(5,443		)	(630		)	(12	)
Consolidated net revenue	$	450,337		$	392,817		$	57,520		15	%
Segment profit:
Community Banking	$	54,098		$	47,209		$	6,889		15	%
Specialty Finance	22,330			19,284			3,046			16
Wealth Management	6,455			6,548			(93		)	(1	)
Consolidated net income	$	82,883		$	73,041		$	9,842		13	%

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Fair Values Of Assets And Liabilities (Summary Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing deposits with banks		$ 591,721	$ 506,871	$ 591,721	$ 506,871		$ 998,437
Available-for-sale securities, at fair value		2,162,061	1,824,240	2,162,061	1,824,240		1,792,078
Trading account securities		1,597	2,234	1,597	2,234		1,206
Federal Home Loan Bank and Federal Reserve Bank stock, at cost		89,818	84,531	89,818	84,531		91,582
Brokerage customer receivables		29,753	28,199	29,753	28,199		24,221
Mortgage loans held-for-sale, at fair value		497,283	363,627	497,283	363,627		351,290
Derivative assets		34,851	33,723	34,851	33,723		35,070
FDIC indemnification asset		3,429	46,115	3,429	46,115	$ 10,224	11,846	$ 60,298	$ 85,672
Accrued interest receivable and other		556,344	525,394	556,344	525,394		501,882
Federal Home Loan Bank advances		444,017	580,582	444,017	580,582		733,050
Other borrowings		261,908	43,716	261,908	43,716		196,465
Subordinated notes		140,000	140,000	140,000	140,000		140,000
Junior subordinated debentures		249,493	249,493	249,493	249,493		249,493
Derivative liabilities		36,605	36,733	36,605	36,733		36,921
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		252,209	356,978	252,209	356,978		230,707
Interest bearing deposits with banks		591,721	506,871	591,721	506,871		998,437
Available-for-sale securities, at fair value		2,162,061	1,824,240	2,162,061	1,824,240		1,792,078
Trading account securities		1,597	2,234	1,597	2,234		1,206
Federal Home Loan Bank and Federal Reserve Bank stock, at cost		89,818	84,531	89,818	84,531		91,582
Brokerage customer receivables		29,753	28,199	29,753	28,199		24,221
Mortgage loans held-for-sale, at fair value		497,283	363,627	497,283	363,627		351,290
Total loans		15,707,060	14,025,150	15,707,060	14,025,150		14,636,107
Mortgage servicing rights		8,034	8,227	8,034	8,227		8,435
Nonqualified deferred compensation assets		8,778	7,850	8,778	7,850		7,951
Derivative assets		48,918	50,967	48,918	50,967		47,964
FDIC indemnification asset		3,429	46,115	3,429	46,115		11,846
Accrued interest receivable and other		178,349	165,511	178,349	165,511		169,156
Total financial assets		19,579,010	17,470,500	19,579,010	17,470,500		18,370,980
Non-maturity deposits		13,145,542	11,314,162	13,145,542	11,314,162		12,142,034
Deposits with stated maturities		3,936,876	4,242,214	3,936,876	4,242,214		4,139,810
Federal Home Loan Bank advances		444,017	580,582	444,017	580,582		733,050
Other borrowings		261,908	43,716	261,908	43,716		196,465
Subordinated notes		140,000	140,000	140,000	140,000		140,000
Junior subordinated debentures		249,493	249,493	249,493	249,493		249,493
Derivative liabilities		40,500	43,650	40,500	43,650		41,180
Accrued interest payable		6,827	8,399	6,827	8,399		8,001
Total financial liabilities		18,225,163	16,622,216	18,225,163	16,622,216		17,650,033
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		252,209	356,978	252,209	356,978		230,707
Interest bearing deposits with banks		591,721	506,871	591,721	506,871		998,437
Available-for-sale securities, at fair value		2,162,061	1,824,240	2,162,061	1,824,240		1,792,078
Trading account securities		1,597	2,234	1,597	2,234		1,206
Federal Home Loan Bank and Federal Reserve Bank stock, at cost		89,818	84,531	89,818	84,531		91,582
Brokerage customer receivables		29,753	28,199	29,753	28,199		24,221
Mortgage loans held-for-sale, at fair value		497,283	363,627	497,283	363,627		351,290
Total loans		16,469,518	14,741,579	16,469,518	14,741,579		15,346,266
Mortgage servicing rights		8,034	8,227	8,034	8,227		8,435
Nonqualified deferred compensation assets		8,778	7,850	8,778	7,850		7,951
Derivative assets		48,918	50,967	48,918	50,967		47,964
FDIC indemnification asset		3,429	46,115	3,429	46,115		11,846
Accrued interest receivable and other		178,349	165,511	178,349	165,511		169,156
Total financial assets		20,341,468	18,186,929	20,341,468	18,186,929		19,081,139
Non-maturity deposits		13,145,542	11,314,162	13,145,542	11,314,162		12,142,034
Deposits with stated maturities		3,937,146	4,255,896	3,937,146	4,255,896		4,143,161
Federal Home Loan Bank advances		448,870	585,792	448,870	585,792		738,113
Other borrowings		261,908	43,716	261,908	43,716		197,883
Subordinated notes		142,810	144,899	142,810	144,899		143,639
Junior subordinated debentures		250,265	250,492	250,265	250,492		250,305
Derivative liabilities		40,500	43,650	40,500	43,650		41,180
Accrued interest payable		6,827	8,399	6,827	8,399		8,001
Total financial liabilities		18,233,868	16,647,006	18,233,868	16,647,006		17,664,316
Municipal
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		58,572	38,053	58,572	38,053	56,049	58,953	39,772	36,386
Available-for-sale securities, at fair value		269,790	176,107	269,790	176,107		238,529
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		(713)	73	(510)	220
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		4,175	1,606	10,849	4,966
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(939)	(3,398)	(10,720)	(3,519)
Equity securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		24,996	24,152	24,996	24,152	24,656	23,711	23,438	22,163
Available-for-sale securities, at fair value		54,208	54,852	54,208	54,852		51,139
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		340	714	1,285	1,989
Mortgage Servicing Rights
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		8,034	8,227	8,034	8,227	$ 7,852	$ 8,435	$ 8,719	$ 8,946
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	[1]	$ 182	$ (492)	$ (401)	$ (719)

[1] Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

A summary of the Company’s goodwill assets by business segment is presented in the following table:

(Dollars in thousands)	January 1, 2015		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2015
Community banking	$	331,752	$	17,383	$	—	$	—		$	349,135
Specialty finance	41,768		—		—		(1,371		)	40,397
Wealth management	32,114		—		—		—			32,114
Total	$	405,634	$	17,383	$	—	$	(1,371	)	$	421,646

The community banking segment's goodwill increased $17.4 million in the first six months of 2015 as a result of the acquisition of Delavan. The specialty finance segment's goodwill decreased $1.4 million in the first six months of 2015 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2015, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not that an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2015.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2015 is as follows:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	25,881		$	29,379		$	40,770
Accumulated amortization	(14,983		)	(17,879		)	(31,223		)
Net carrying amount	$	10,898		$	11,500		$	9,547
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,001		)	(941		)	(878		)
Net carrying amount	$	799		$	859		$	922
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,690
Accumulated amortization	(1,713		)	(1,488		)	(1,265		)
Net carrying amount	$	6,227		$	6,452		$	6,425
Total other intangible assets, net	$	17,924		$	18,811		$	16,894

Estimated amortization
Actual in six months ended June 30, 2015	$	1,947
Estimated remaining in 2015	1,766
Estimated—2016	3,007
Estimated—2017	2,499
Estimated—2018	2,186
Estimated—2019	1,837

The core deposit intangibles recognized in connection with prior bank acquisitions are amortized over a ten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis while the customer list intangibles recognized in connection with prior acquisitions within the wealth management segment are being amortized over a ten-year period on a straight-line basis.

Total amortization expense associated with finite-lived intangibles totaled approximately $1.9 million and $2.3 million for the six months ended June 30, 2015 and 2014, respectively.

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Goodwill And Other Intangible Assets (Goodwill Assets by Business Segment) (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 405,634
Goodwill Acquired	17,383
Impairment Loss	0
Goodwill Adjustments	(1,371)
Ending balance	421,646
Community banking
Goodwill [Roll Forward]
Beginning balance	331,752
Goodwill Acquired	17,383
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	349,135
Specialty finance
Goodwill [Roll Forward]
Beginning balance	41,768
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	(1,371)
Ending balance	40,397
Wealth management
Goodwill [Roll Forward]
Beginning balance	32,114
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	$ 32,114

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Loans

6 Months Ended

Jun. 30, 2015

Loans and Leases Receivable Disclosure [Abstract]

Loans

Loans

The following table shows the Company’s loan portfolio by category as of the dates shown:

	June 30,			December 31,			June 30,
(Dollars in thousands)	2015			2014			2014
Balance:
Commercial	$	4,330,344		$	3,924,394		$	3,640,430
Commercial real estate	4,850,590			4,505,753			4,353,472
Home equity	712,350			716,293			713,642
Residential real estate	503,015			483,542			451,905
Premium finance receivables—commercial	2,460,408			2,350,833			2,378,529
Premium finance receivables—life insurance	2,537,475			2,277,571			2,051,645
Consumer and other	119,468			151,012			160,373
Total loans, net of unearned income, excluding covered loans	$	15,513,650		$	14,409,398		$	13,749,996
Covered loans	193,410			226,709			275,154
Total loans	$	15,707,060		$	14,636,107		$	14,025,150
Mix:
Commercial	27		%	26		%	26		%
Commercial real estate	31			31			31
Home equity	5			5			5
Residential real estate	3			3			3
Premium finance receivables—commercial	16			16			17
Premium finance receivables—life insurance	16			16			15
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	98		%	98		%
Covered loans	1			2			2
Total loans	100		%	100		%	100		%

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses located within the geographic market areas that the banks serve. The premium finance receivables portfolios are made to customers throughout the United States and Canada. The Company strives to maintain a loan portfolio that is diverse in terms of loan type, industry, borrower and geographic concentrations. Such diversification reduces the exposure to economic downturns that may occur in different segments of the economy or in different industries.

Certain premium finance receivables are recorded net of unearned income. The unearned income portions of such premium finance receivables were $53.7 million at June 30, 2015, $46.9 million at December 31, 2014 and $44.8 million at June 30, 2014, respectively. Certain life insurance premium finance receivables attributable to the life insurance premium finance loan acquisition in 2009 as well as PCI loans are recorded net of credit discounts. See “Acquired Loan Information at Acquisition” below.

Total loans, excluding PCI loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $1.7 million at June 30, 2015, $330,000 at December 31, 2014 and $(1.3) million at June 30, 2014. The net credit balance at June 30, 2014 is primarily the result of purchase accounting adjustments related to acquisitions in 2014.

It is the policy of the Company to review each prospective credit in order to determine the appropriateness and, when required, the adequacy of security or collateral necessary to obtain when making a loan. The type of collateral, when required, will vary from liquid assets to real estate. The Company seeks to ensure access to collateral, in the event of default, through adherence to state lending laws and the Company’s credit monitoring procedures.

Acquired Loan Information at Acquisition—PCI Loans

As part of our previous acquisitions, we acquired loans for which there was evidence of credit quality deterioration since origination (PCI loans) and we determined that it was probable that the Company would be unable to collect all contractually required principal and interest payments. The following table presents the unpaid principal balance and carrying value for these acquired loans:

	June 30, 2015				December 31, 2014
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	251,529	$	204,898	$	285,809	$	227,229
Life insurance premium finance loans acquisition	388,773		384,320		399,665		393,479

The following table provides estimated details as of the date of acquisition on loans acquired in 2015 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Delavan
Contractually required payments including interest	$	15,791
Less: Nonaccretable difference	1,442
Cash flows expected to be collected (1)	14,349
Less: Accretable yield	898
Fair value of PCI loans acquired	13,451

(1) Represents undiscounted expected principal and interest cash at acquisition.

See Note 7—Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion regarding the allowance for loan losses associated with PCI loans at June 30, 2015.

Accretable Yield Activity - PCI Loans

Changes in expected cash flows may vary from period to period as the Company periodically updates its cash flow model assumptions for PCI loans. The factors that most significantly affect the estimates of gross cash flows expected to be collected, and accordingly the accretable yield, include changes in the benchmark interest rate indices for variable-rate products and changes in prepayment assumptions and loss estimates. The following table provides activity for the accretable yield of PCI loans:

	Three Months Ended June 30, 2015						Three Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	69,182		$	1,016		$	97,674		$	6,561
Acquisitions	—			—			—			—
Accretable yield amortized to interest income	(5,184		)	(1,131		)	(9,617		)	(1,433		)
Accretable yield amortized to indemnification asset (1)	(4,089		)	—			(11,161		)	—
Reclassification from non-accretable difference (2)	1,638			115			17,928			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	2,096			—			(2,722		)	51
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

	Six Months Ended June 30, 2015						Six Months Ended June 30, 2014
(Dollars in thousands)	Bank Acquisitions			Life Insurance Premium Finance Loans			Bank Acquisitions			Life Insurance Premium Finance Loans
Accretable yield, beginning balance	$	77,485		$	1,617		$	107,655		$	8,254
Acquisitions	898			—			—			—
Accretable yield amortized to interest income	(10,688		)	(1,732		)	(17,387		)	(3,204		)
Accretable yield amortized to indemnification asset (1)	(7,665		)	—			(16,809		)	—
Reclassification from non-accretable difference (2)	2,741			115			26,508			—
Increases (decreases) in interest cash flows due to payments and changes in interest rates	872			—			(7,865		)	129
Accretable yield, ending balance (3)	$	63,643		$	—		$	92,102		$	5,179

(1) Represents the portion of the current period accreted yield, resulting from lower expected losses, applied to reduce the loss share indemnification asset.

(2) Reclassification is the result of subsequent increases in expected principal cash flows.

(3) As of June 30, 2015, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $12.3 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income from loans acquired in bank acquisitions totaled $5.2 million and $9.6 million in the second quarter of 2015 and 2014, respectively. For the six months ended June 30, 2015 and 2014, the Company recorded accretion to interest income of $10.7 million and $17.4 million, respectively. These amounts include accretion from both covered and non-covered loans, and are included together within interest and fees on loans in the Consolidated Statements of Income.

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans

6 Months Ended

Jun. 30, 2015

Loans and Leases Receivable, Allowance [Abstract]

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans

The tables below show the aging of the Company’s loan portfolio at June 30, 2015, December 31, 2014 and June 30, 2014:

As of June 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	4,424	$	—	$	1,846	$	6,027	$	2,522,162	$	2,534,459
Franchise	905		—		113		396		227,185		228,599
Mortgage warehouse lines of credit	—		—		—		—		213,797		213,797
Community Advantage—homeowners association	—		—		—		—		114,883		114,883
Aircraft	—		—		—		—		6,831		6,831
Asset-based lending	—		—		1,767		7,423		823,265		832,455
Tax exempt	—		—		—		—		199,185		199,185
Leases	65		—		—		—		187,565		187,630
Other	—		—		—		—		2,772		2,772
PCI - commercial (1)	—		474		—		233		9,026		9,733
Total commercial	5,394		474		3,726		14,079		4,306,671		4,330,344
Commercial real estate:
Residential construction	—		—		—		4		57,598		57,602
Commercial construction	19		—		—		—		249,524		249,543
Land	2,035		—		1,123		2,399		82,280		87,837
Office	6,360		701		163		2,601		744,992		754,817
Industrial	2,568		—		18		484		624,337		627,407
Retail	2,352		—		896		2,458		744,285		749,991
Multi-family	1,730		—		933		223		665,562		668,448
Mixed use and other	8,119		—		2,405		3,752		1,577,846		1,592,122
PCI - commercial real estate (1)	—		15,646		3,490		2,798		40,889		62,823
Total commercial real estate	23,183		16,347		9,028		14,719		4,787,313		4,850,590
Home equity	5,695		—		511		3,365		702,779		712,350
Residential real estate	16,631		—		2,410		1,205		480,427		500,673
PCI - residential real estate (1)	—		264		84		—		1,994		2,342
Premium finance receivables
Commercial insurance loans	15,156		9,053		5,048		11,071		2,420,080		2,460,408
Life insurance loans	—		351		—		6,823		2,145,981		2,153,155
PCI - life insurance loans (1)	—		—		—		—		384,320		384,320
Consumer and other	280		110		196		919		117,963		119,468
Total loans, net of unearned income, excluding covered loans	$	66,339	$	26,599	$	21,003	$	52,181	$	15,347,528	$	15,513,650
Covered loans	6,353		10,030		1,333		1,720		173,974		193,410
Total loans, net of unearned income	$	72,692	$	36,629	$	22,336	$	53,901	$	15,521,502	$	15,707,060

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

As of December 31, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	9,132	$	474	$	3,161	$	7,492	$	2,213,105	$	2,233,364
Franchise	—		—		308		1,219		231,789		233,316
Mortgage warehouse lines of credit	—		—		—		—		139,003		139,003
Community Advantage—homeowners association	—		—		—		—		106,364		106,364
Aircraft	—		—		—		—		8,065		8,065
Asset-based lending	25		—		1,375		2,394		802,608		806,402
Tax exempt	—		—		—		—		217,487		217,487
Leases	—		—		77		315		159,744		160,136
Other	—		—		—		—		11,034		11,034
PCI - commercial (1)	—		365		202		138		8,518		9,223
Total commercial	9,157		839		5,123		11,558		3,897,717		3,924,394
Commercial real estate
Residential construction	—		—		250		76		38,370		38,696
Commercial construction	230		—		—		2,023		185,513		187,766
Land	2,656		—		—		2,395		86,779		91,830
Office	7,288		—		2,621		1,374		694,149		705,432
Industrial	2,392		—		—		3,758		617,820		623,970
Retail	4,152		—		116		3,301		723,919		731,488
Multi-family	249		—		249		1,921		603,323		605,742
Mixed use and other	9,638		—		2,603		9,023		1,443,853		1,465,117
PCI - commercial real estate (1)	—		10,976		6,393		4,016		34,327		55,712
Total commercial real estate	26,605		10,976		12,232		27,887		4,428,053		4,505,753
Home equity	6,174		—		983		3,513		705,623		716,293
Residential real estate	15,502		—		267		6,315		459,224		481,308
PCI - residential real estate (1)	—		549		—		—		1,685		2,234
Premium finance receivables
Commercial insurance loans	12,705		7,665		5,995		17,328		2,307,140		2,350,833
Life insurance loans	—		—		13,084		339		1,870,669		1,884,092
PCI - life insurance loans (1)	—		—		—		—		393,479		393,479
Consumer and other	277		119		293		838		149,485		151,012
Total loans, net of unearned income, excluding covered loans	$	70,420	$	20,148	$	37,977	$	67,778	$	14,213,075	$	14,409,398
Covered loans	7,290		17,839		1,304		4,835		195,441		226,709
Total loans, net of unearned income	$	77,710	$	37,987	$	39,281	$	72,613	$	14,408,516	$	14,636,107

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

As of June 30, 2014			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial and industrial	$	6,216	$	—	$	4,165	$	21,610	$	1,980,489	$	2,012,480
Franchise	—		—		—		549		222,907		223,456
Mortgage warehouse lines of credit	—		—		—		1,680		146,531		148,211
Community Advantage—homeowners association	—		—		—		—		94,009		94,009
Aircraft	—		—		—		—		7,847		7,847
Asset-based lending	295		—		—		6,047		772,002		778,344
Tax exempt	—		—		—		—		208,913		208,913
Leases	—		—		—		36		144,399		144,435
Other	—		—		—		—		9,792		9,792
PCI - commercial (1)	—		1,452		—		224		11,267		12,943
Total commercial	6,511		1,452		4,165		30,146		3,598,156		3,640,430
Commercial real estate:
Residential construction	—		—		—		18		29,941		29,959
Commercial construction	839		—		—		—		154,220		155,059
Land	2,367		—		614		4,502		98,444		105,927
Office	10,950		—		999		3,911		652,057		667,917
Industrial	5,097		—		899		690		610,954		617,640
Retail	6,909		—		1,334		2,560		686,292		697,095
Multi-family	689		—		244		4,717		630,519		636,169
Mixed use and other	9,470		309		5,384		12,300		1,350,976		1,378,439
PCI - commercial real estate (1)	—		15,682		155		1,595		47,835		65,267
Total commercial real estate	36,321		15,991		9,629		30,293		4,261,238		4,353,472
Home equity	5,804		—		1,392		3,324		703,122		713,642
Residential real estate	15,294		—		1,487		1,978		430,364		449,123
PCI - residential real estate (1)	—		988		111		—		1,683		2,782
Premium finance receivables	—		—		—		—		—		—
Commercial insurance loans	12,298		10,275		12,335		14,672		2,328,949		2,378,529
Life insurance loans	—		649		896		4,783		1,635,557		1,641,885
PCI - life insurance loans (1)	—		—		—		—		409,760		409,760
Consumer and other	1,116		73		562		600		158,022		160,373
Total loans, net of unearned income, excluding covered loans	$	77,344	$	29,428	$	30,577	$	85,796	$	13,526,851	$	13,749,996
Covered loans	6,690		34,486		4,003		1,482		228,493		275,154
Total loans, net of unearned income	$	84,034	$	63,914	$	34,580	$	87,278	$	13,755,344	$	14,025,150

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30.Loan agings are based upon contractually required payments.

Our ability to manage credit risk depends in large part on our ability to properly identify and manage problem loans. To do so, the Company operates a credit risk rating system under which our credit management personnel assign a credit risk rating (1 to 10 rating) to each loan at the time of origination and review loans on a regular basis.

Each loan officer is responsible for monitoring his or her loan portfolio, recommending a credit risk rating for each loan in his or her portfolio and ensuring the credit risk ratings are appropriate. These credit risk ratings are then ratified by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including: a borrower’s financial strength, cash flow coverage, collateral protection and guarantees.

The Company’s Problem Loan Reporting system automatically includes all loans with credit risk ratings of 6 through 9. This system is designed to provide an on-going detailed tracking mechanism for each problem loan. Once management determines that a loan has deteriorated to a point where it has a credit risk rating of 6 or worse, the Company’s Managed Asset Division performs an overall credit and collateral review. As part of this review, all underlying collateral is identified and the valuation methodology is analyzed and tracked. As a result of this initial review by the Company’s Managed Asset Division, the credit risk rating is reviewed and a portion of the outstanding loan balance may be deemed uncollectible or an impairment reserve may be established. The Company’s impairment analysis utilizes an independent re-appraisal of the collateral (unless such a third-party evaluation is not possible due to the unique nature of the collateral, such as a closely-held business or thinly traded securities). In the case of commercial real estate collateral, an independent third party appraisal is ordered by the Company’s Real Estate Services Group to determine if there has been any change in the underlying collateral value. These independent appraisals are reviewed by the Real Estate Services Group and sometimes by independent third party valuation experts and may be adjusted depending upon market conditions.

Through the credit risk rating process, loans are reviewed to determine if they are performing in accordance with the original contractual terms. If the borrower has failed to comply with the original contractual terms, further action may be required by the Company, including a downgrade in the credit risk rating, movement to non-accrual status, a charge-off or the establishment of a specific impairment reserve. If we determine that a loan amount, or portion thereof, is uncollectible, the loan’s credit risk rating is immediately downgraded to an 8 or 9 and the uncollectible amount is charged-off. Any loan that has a partial charge-off continues to be assigned a credit risk rating of an 8 or 9 for the duration of time that a balance remains outstanding. The Company undertakes a thorough and ongoing analysis to determine if additional impairment and/or charge-offs are appropriate and to begin a workout plan for the credit to minimize actual losses.

If, based on current information and events, it is probable that the Company will be unable to collect all amounts due to it according to the contractual terms of the loan agreement, a specific impairment reserve is established. In determining the appropriate charge-off for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

Non-performing loans include all non-accrual loans (8 and 9 risk ratings) as well as loans 90 days past due and still accruing interest, excluding PCI loans. The remainder of the portfolio is considered performing under the contractual terms of the loan agreement. The following table presents the recorded investment based on performance of loans by class, excluding covered loans, per the most recent analysis at June 30, 2015, December 31, 2014 and June 30, 2014:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30,  2014		June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Loan Balances:
Commercial
Commercial and industrial	$	2,530,035	$	2,223,758	$	2,006,264	$	4,424	$	9,606	$	6,216	$	2,534,459	$	2,233,364	$	2,012,480
Franchise	227,694		233,316		223,456		905		—		—		228,599		233,316		223,456
Mortgage warehouse lines of credit	213,797		139,003		148,211		—		—		—		213,797		139,003		148,211
Community Advantage—homeowners association	114,883		106,364		94,009		—		—		—		114,883		106,364		94,009
Aircraft	6,831		8,065		7,847		—		—		—		6,831		8,065		7,847
Asset-based lending	832,455		806,377		778,049		—		25		295		832,455		806,402		778,344
Tax exempt	199,185		217,487		208,913		—		—		—		199,185		217,487		208,913
Leases	187,565		160,136		144,435		65		—		—		187,630		160,136		144,435
Other	2,772		11,034		9,792		—		—		—		2,772		11,034		9,792
PCI - commercial (1)	9,733		9,223		12,943		—		—		—		9,733		9,223		12,943
Total commercial	4,324,950		3,914,763		3,633,919		5,394		9,631		6,511		4,330,344		3,924,394		3,640,430
Commercial real estate
Residential construction	57,602		38,696		29,959		—		—		—		57,602		38,696		29,959
Commercial construction	249,524		187,536		154,220		19		230		839		249,543		187,766		155,059
Land	85,802		89,174		103,560		2,035		2,656		2,367		87,837		91,830		105,927
Office	747,756		698,144		656,967		7,061		7,288		10,950		754,817		705,432		667,917
Industrial	624,839		621,578		612,543		2,568		2,392		5,097		627,407		623,970		617,640
Retail	747,639		727,336		690,186		2,352		4,152		6,909		749,991		731,488		697,095
Multi-family	666,718		605,493		635,480		1,730		249		689		668,448		605,742		636,169
Mixed use and other	1,584,003		1,455,479		1,368,660		8,119		9,638		9,779		1,592,122		1,465,117		1,378,439
PCI - commercial real estate(1)	62,823		55,712		65,267		—		—		—		62,823		55,712		65,267
Total commercial real estate	4,826,706		4,479,148		4,316,842		23,884		26,605		36,630		4,850,590		4,505,753		4,353,472
Home equity	706,655		710,119		707,838		5,695		6,174		5,804		712,350		716,293		713,642
Residential real estate	484,042		465,806		433,829		16,631		15,502		15,294		500,673		481,308		449,123
PCI - residential real estate (1)	2,342		2,234		2,782		—		—		—		2,342		2,234		2,782
Premium finance receivables
Commercial insurance loans	2,436,199		2,330,463		2,355,956		24,209		20,370		22,573		2,460,408		2,350,833		2,378,529
Life insurance loans	2,152,804		1,884,092		1,641,236		351		—		649		2,153,155		1,884,092		1,641,885
PCI - life insurance loans (1)	384,320		393,479		409,760		—		—		—		384,320		393,479		409,760
Consumer and other	119,078		150,617		159,184		390		395		1,189		119,468		151,012		160,373
Total loans, net of unearned income, excluding covered loans	$	15,437,096	$	14,330,721	$	13,661,346	$	76,554	$	78,677	$	88,650	$	15,513,650	$	14,409,398	$	13,749,996

(1) PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. See Note 6 - Loans for further discussion of these purchased loans.

A summary of activity in the allowance for credit losses by loan portfolio (excluding covered loans) for the three months ended June 30, 2015 and 2014 is as follows:

Three months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Other adjustments	(13		)	(81		)	—			(5		)	6			—			(93		)
Reclassification from allowance for unfunded lending-related commitments	—			4			—			—			—			—			4
Charge-offs	(1,243		)	(856		)	(1,847		)	(923		)	(1,526		)	(115		)	(6,510		)
Recoveries	285			1,824			39			16			458			34			2,656
Provision for credit losses	145			4,305			1,432			1,835			1,991			(7		)	9,701
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088
Individually evaluated for impairment	$	2,282		$	5,602		$	808		$	1,387		$	—		$	44		$	10,123
Collectively evaluated for impairment	30,600			37,145			11,480			3,589			6,921			834			90,569
Loans acquired with deteriorated credit quality	18			335			—			43			—			—			396
Loans at period end
Individually evaluated for impairment	$	11,921		$	65,870		$	5,909		$	20,459		$	—		$	418		$	104,577
Collectively evaluated for impairment	4,308,690			4,721,897			706,441			480,214			4,613,563			119,050			14,949,855
Loans acquired with deteriorated credit quality	9,733			62,823			—			2,342			384,320			—			459,218

Three months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	24,689		$	44,605		$	10,966		$	4,691		$	5,582		$	1,742		$	92,275
Other adjustments	(22		)	(96		)	(1		)	(2		)	16			—			(105		)
Reclassification from allowance for unfunded lending-related commitments	—			(146		)	—			—			—			—			(146		)
Charge-offs	(2,384		)	(2,351		)	(730		)	(689		)	(1,492		)	(213		)	(7,859		)
Recoveries	270			342			122			74			314			153			1,275
Provision for credit losses	3,485			(1,652		)	3,561			(341		)	1,889			(129		)	6,813
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137
Individually evaluated for impairment	$	1,927		$	7,237		$	636		$	484		$	—		$	102		$	10,386
Collectively evaluated for impairment	24,100			34,349			13,282			3,196			6,309			1,451			82,687
Loans acquired with deteriorated credit quality	11			—			—			53			—			—			64
Loans at period end
Individually evaluated for impairment	$	12,397		$	100,068		$	6,030		$	18,680		$	—		$	1,560		$	138,735
Collectively evaluated for impairment	3,615,090			4,188,137			707,612			430,443			4,020,414			158,615			13,120,311
Loans acquired with deteriorated credit quality	12,943			65,267			—			2,782			409,760			198			490,950

Six months ended June 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(30		)	(261		)	—			(8		)	(42		)	—			(341		)
Reclassification from allowance for unfunded lending-related commitments	—			(109		)	—			—			—			—			(109		)
Charge-offs	(1,920		)	(1,861		)	(2,431		)	(1,554		)	(2,789		)	(226		)	(10,781		)
Recoveries	655			2,136			87			92			787			87			3,844
Provision for credit losses	2,496			6,760			2,132			2,271			2,452			(225		)	15,886
Allowance for loan losses at period end	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	32,900		$	43,082		$	12,288		$	5,019		$	6,921		$	878		$	101,088

Six months ended June 30, 2014	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	23,092		$	48,658		$	12,611		$	5,108		$	5,583		$	1,870		$	96,922
Other adjustments	(37		)	(217		)	(2		)	(4		)	7			—			(253		)
Reclassification from allowance for unfunded lending-related commitments	—			(164		)	—			—			—			—			(164		)
Charge-offs	(3,032		)	(6,844		)	(2,997		)	(915		)	(2,702		)	(386		)	(16,876		)
Recoveries	587			487			379			205			635			214			2,507
Provision for credit losses	5,428			(1,218		)	3,927			(661		)	2,786			(145		)	10,117
Allowance for loan losses at period end	$	26,038		$	40,702		$	13,918		$	3,733		$	6,309		$	1,553		$	92,253
Allowance for unfunded lending-related commitments at period end	$	—		$	884		$	—		$	—		$	—		$	—		$	884
Allowance for credit losses at period end	$	26,038		$	41,586		$	13,918		$	3,733		$	6,309		$	1,553		$	93,137

A summary of activity in the allowance for covered loan losses for the three months ended June 30, 2015 and 2014 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2015			2014			2015			2014
Balance at beginning of period	$	1,878		$	3,447		$	2,131		$	10,092
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,094		)	(764		)	(1,623		)	(7,885		)
Benefit attributable to FDIC loss share agreements	875			611			1,298			6,308
Net provision for covered loan losses	(219		)	(153		)	(325		)	(1,577		)
Decrease in FDIC indemnification asset	(875		)	(611		)	(1,298		)	(6,308		)
Loans charged-off	(140		)	(2,189		)	(377		)	(5,053		)
Recoveries of loans charged-off	1,571			1,173			2,084			4,513
Net recoveries (charge-offs)	1,431			(1,016		)	1,707			(540		)
Balance at end of period	$	2,215		$	1,667		$	2,215		$	1,667

In conjunction with FDIC-assisted transactions, the Company entered into loss share agreements with the FDIC. Additional expected losses, to the extent such expected losses result in the recognition of an allowance for loan losses, will increase the FDIC indemnification asset. The allowance for loan losses for loans acquired in FDIC-assisted transactions is determined without giving consideration to the amounts recoverable through loss share agreements (since the loss share agreements are separately accounted for and thus presented “gross” on the balance sheet). On the Consolidated Statements of Income, the provision for credit losses is reported net of changes in the amount recoverable under the loss share agreements. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will reduce the FDIC indemnification asset. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC indemnification asset. See “FDIC-Assisted Transactions” within Note 3 – Business Combinations for more detail.

Impaired Loans

A summary of impaired loans, including troubled debt restructurings ("TDRs"), is as follows:

	June 30,		December 31,		June 30,
(Dollars in thousands)	2015		2014		2014
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,748	$	69,487	$	91,511
Impaired loans with no allowance for loan loss required	52,609		57,925		45,734
Total impaired loans (2)	$	103,357	$	127,412	$	137,245
Allowance for loan losses related to impaired loans	$	10,075	$	6,270	$	10,298
TDRs	$	62,776	$	82,275	$	88,107

(1) These impaired loans require an allowance for loan losses because the estimated fair value of the loans or related collateral is less than the recorded investment in the loans.

(2) Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if theloan is current with all payments of principal and interest.

The following tables present impaired loans evaluated for impairment by loan class for the periods ended as follows:

							For the Six Months Ended
	As of June 30, 2015						June 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	6,702	$	7,141	$	2,000	$	6,876	$	166
Franchise	905		905		200		912		15
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	65		65		65		66		2
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	6,924		10,539		50		6,931		294
Office	7,005		7,010		2,414		7,060		154
Industrial	1,218		1,218		558		1,218		34
Retail	8,336		9,222		404		8,482		194
Multi-family	2,149		2,258		322		2,168		51
Mixed use and other	10,507		12,694		1,847		10,557		290
Home equity	1,673		1,728		808		1,680		34
Residential real estate	6,945		7,138		1,363		6,963		137
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	180		245		44		190		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	3,760	$	6,731	$	—	$	4,052	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	2,023		2,023		—		2,023		48
Commercial construction	642		642		—		627		13
Land	1,906		2,643		—		1,924		50
Office	6,289		8,780		—		6,834		221
Industrial	2,022		2,200		—		2,059		88
Retail	4,099		5,248		—		4,113		112
Multi-family	592		1,015		—		598		22
Mixed use and other	11,683		12,008		—		12,427		266
Home equity	4,236		5,697		—		4,320		118
Residential real estate	13,258		14,961		—		13,553		294
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
PCI - life insurance	—		—		—		—		—
Consumer and other	238		267		—		241		7
Total loans, net of unearned income, excluding covered loans	$	103,357	$	122,378	$	10,075	$	105,874	$	2,835

							For the Twelve Months Ended
	As of December 31, 2014						December 31, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	9,989	$	10,785	$	1,915	$	10,784	$	539
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	—		—		—		—		—
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	—		—		—		—		—
Land	5,011		8,626		43		5,933		544
Office	11,038		12,863		305		11,567		576
Industrial	195		277		15		214		13
Retail	11,045		14,566		487		12,116		606
Multi-family	2,808		3,321		158		2,839		145
Mixed use and other	21,777		24,076		2,240		21,483		1,017
Home equity	1,946		2,055		475		1,995		80
Residential real estate	5,467		5,600		606		5,399		241
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	211		213		26		214		10
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	5,797	$	8,862	$	—	$	6,664	$	595
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		87		100
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,875		3,085		—		3,183		151
Land	10,210		10,941		—		10,268		430
Office	4,132		5,020		—		4,445		216
Industrial	4,160		4,498		—		3,807		286
Retail	5,487		7,470		—		6,915		330
Multi-family	—		—		—		—		—
Mixed use and other	7,985		8,804		—		9,533		449
Home equity	4,453		6,172		—		4,666		256
Residential real estate	12,640		14,334		—		12,682		595
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	161		222		—		173		11
Total loans, net of unearned income, excluding covered loans	$	127,412	$	153,742	$	6,270	$	134,967	$	7,190

							For the Six Months Ended
	As of June 30, 2014						June 30, 2014
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	7,220	$	10,152	$	1,631	$	8,332	$	339
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	270		290		270		275		7
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	2,146		2,156		128		2,150		44
Land	11,687		15,538		363		11,876		378
Office	14,403		15,159		2,664		14,517		335
Industrial	3,349		3,455		227		3,372		76
Retail	14,320		14,733		1,590		14,343		304
Multi-family	2,835		3,349		119		2,857		73
Mixed use and other	27,418		27,565		2,111		28,474		551
Home equity	1,562		1,616		636		1,567		30
Residential real estate	5,997		6,372		457		5,914		140
Premium finance receivables			—
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	304		364		102		308		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial and industrial	$	4,222	$	8,666	$	—	$	4,591	$	219
Franchise	—		—		—		—		—
Mortgage warehouse lines of credit	—		—		—		—		—
Community Advantage—homeowners association	—		—		—		—		—
Aircraft	—		—		—		—		—
Asset-based lending	25		1,952		—		150		50
Tax exempt	—		—		—		—		—
Leases	—		—		—		—		—
Other	—		—		—		—		—
Commercial real estate
Residential construction	—		—		—		—		—
Commercial construction	1,031		1,031		—		1,051		23
Land	3,917		4,958		—		5,657		131
Office	2,598		2,599		—		2,605		73
Industrial	3,603		3,839		—		3,155		95
Retail	6,422		7,813		—		6,456		188
Multi-family	440		966		—		497		22
Mixed use and other	5,330		7,842		—		5,875		218
Home equity	4,468		6,553		—		4,842		138
Residential real estate	12,422		15,538		—		12,836		295
Premium finance receivables
Commercial insurance	—		—		—		—		—
Life insurance	—		—		—		—		—
Purchased life insurance	—		—		—		—		—
Consumer and other	1,256		1,775		—		1,260		53
Total loans, net of unearned income, excluding covered loans	$	137,245	$	164,281	$	10,298	$	142,960	$	3,790

TDRs

At June 30, 2015, the Company had $62.8 million in loans modified in TDRs. The $62.8 million in TDRs represents 122 credits in which economic concessions were granted to certain borrowers to better align the terms of their loans with their current ability to pay.

The Company’s approach to restructuring loans, excluding PCI loans, is built on its credit risk rating system which requires credit management personnel to assign a credit risk rating to each loan. In each case, the loan officer is responsible for recommending a credit risk rating for each loan and ensuring the credit risk ratings are appropriate. These credit risk ratings are then reviewed and approved by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors including a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. The Company’s credit risk rating scale is one through ten with higher scores indicating higher risk. In the case of loans rated six or worse following modification, the Company’s Managed Assets Division evaluates the loan and the credit risk rating and determines that the loan has been restructured to be reasonably assured of repayment and of performance according to the modified terms and is supported by a current, well-documented credit assessment of the borrower’s financial condition and prospects for repayment under the revised terms.

A modification of a loan, excluding PCI loans, with an existing credit risk rating of six or worse or a modification of any other credit which will result in a restructured credit risk rating of six or worse, must be reviewed for possible TDR classification. In that event, our Managed Assets Division conducts an overall credit and collateral review. A modification of these loans is considered to be a TDR if both (1) the borrower is experiencing financial difficulty and (2) for economic or legal reasons, the bank grants a concession to a borrower that it would not otherwise consider. The modification of a loan, excluding PCI loans, where the credit risk rating is five or better both before and after such modification is not considered to be a TDR. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is five or better are not experiencing financial difficulties and therefore, are not considered TDRs.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless at any subsequent re-modification the borrower has been in compliance with the loan’s modified terms for a period of six months (including over a calendar year-end) and the current interest rate represents a market rate at the time of restructuring. The Managed Assets Division, in consultation with the respective loan officer, determines whether the modified interest rate represented a current market rate at the time of restructuring. Using knowledge of current market conditions and rates, competitive pricing on recent loan originations, and an assessment of various characteristics of the modified loan (including collateral position and payment history), an appropriate market rate for a new borrower with similar risk is determined. If the modified interest rate meets or exceeds this market rate for a new borrower with similar risk, the modified interest rate represents a market rate at the time of restructuring. Additionally, before removing a loan from TDR classification, a review of the current or previously measured impairment on the loan and any concerns related to future performance by the borrower is conducted. If concerns exist about the future ability of the borrower to meet its obligations under the loans based on a credit review by the Managed Assets Division, the TDR classification is not removed from the loan.

TDRs are reviewed at the time of the modification and on a quarterly basis to determine if a specific reserve is necessary. The carrying amount of the loan is compared to the expected payments to be received, discounted at the loan's original rate, or for collateral dependent loans, to the fair value of the collateral. Any shortfall is recorded as a specific reserve. The Company, in accordance with ASC 310-10, continues to individually measure impairment of these loans after the TDR classification is removed.

Each TDR was reviewed for impairment at June 30, 2015 and approximately $3.7 million of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2015 and 2014, the Company recorded $94,000 and $103,000, respectively, in interest income representing this decrease in impairment. For the six months ended June 30, 2015 and 2014, the Company recorded $287,000 and $235,000, respectively, to interest income representing the reduction in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2015, the Company had $9.4 million of foreclosed residential real estate properties included within OREO.

The tables below present a summary of the post-modification balance of loans restructured during the three and six months ended June 30, 2015 and 2014, respectively, which represent TDRs:

Three months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	5	1,148		5	1,148		2	372		—	—		—	—
Total loans	6	$	1,317	6	$	1,317	2	$	372	1	$	169	—	$	—

Three months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	4	1,049		1	233		4	1,049		—	—		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	7	$	2,240	3	$	1,243	5	$	1,230	1	$	220	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

During the three months ended June 30, 2015, six loans totaling $1.3 million were determined to be TDRs, compared to seven loans totaling $2.2 million in the same period of 2014. Of these loans extended at below market terms, the weighted average extension had a term of approximately 29 months during the three months ended June 30, 2015 compared to 16 months for the same period of 2014. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 408 basis points and 137 basis points during the three months ending June 30, 2015 and 2014, respectively. Interest-only payment terms were approximately 29 months during the three months ending June 30, 2015 compared to approximately six months during the three months ending June 30, 2014. Additionally, no principal balances were forgiven in the second quarter of 2015 or 2014.

Six months ended June 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Retail	—	—		—	—		—	—		—	—		—	—
Multi-family	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	8	1,442		8	1,442		4	452		1	50		—	—
Total loans	9	$	1,611	9	$	1,611	4	$	452	2	$	219	—	$	—

Six months ended June 30, 2014 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	1	$	88	—	$	—	1	$	88	—	$	—
Commercial real estate
Office	1	790		1	790		—	—		—	—		—	—
Industrial	1	1,078		1	1,078		—	—		1	1,078		—	—
Retail	1	202		1	202		—	—		—	—		—	—
Multi-family	1	181		—	—		1	181		—	—		—	—
Mixed use and other	7	4,926		3	2,837		7	4,926		1	1,273		—	—
Residential real estate and other	1	220		1	220		—	—		1	220		—	—
Total loans	13	$	7,485	8	$	5,215	8	$	5,107	4	$	2,659	—	$	—

(1) TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

(2) Balances represent the recorded investment in the loan at the time of the restructuring.

During the six months ended June 30, 2015, nine loans totaling $1.6 million were determined to be TDRs, compared to 13 loans totaling $7.5 million in the same period of 2014. Of these loans extended at below market terms, the weighted average extension had a term of approximately 27 months during the six months ended June 30, 2015 compared to 14 months for the same period of 2014. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 367 basis points and 167 basis points during the six months ending June 30, 2015 and 2014, respectively. Interest-only payment terms were approximately 28 months and nine months during the six months ending June 30, 2015 and 2014, respectively. Additionally, no balances were forgiven in the first six months of 2015 or 2014.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2015 and 2014, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2015			Three Months Ended June 30, 2015			Six Months Ended June 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Land	—	—		—	—		—	—
Office	1	720		—	—		—	—
Industrial	2	854		—	—		—	—
Retail	—	—		—	—		—	—
Multi-family	—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	13	3,058		4	833		4	833
Total loans	17	$	6,093	4	$	833	4	$	833

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

(Dollars in thousands)	As of June 30, 2014			Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial and industrial	1	$	88	—	$	—	—	$	—
Commercial real estate
Land	1	2,352		1	2,352		1	2,352
Office	2	1,345		—	—		—	—
Industrial	1	1,078		1	1,078		1	1,078
Retail	1	202		—	—		—	—
Multi-family	1	181		—	—		—	—
Mixed use and other	11	6,436		3	577		3	577
Residential real estate and other	4	1,738		1	169		1	169
Total loans	22	$	13,420	6	$	4,176	6	$	4,176

(1) Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

(2) TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

(3) Balances represent the recorded investment in the loan at the time of the restructuring.

XML

Deposits

6 Months Ended

Jun. 30, 2015

Deposits [Abstract]

Deposits

Deposits

The following table is a summary of deposits as of the dates shown:

(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014
Balance:
Non-interest bearing	$	3,910,310		$	3,518,685		$	3,072,430
NOW and interest bearing demand deposits	2,240,832			2,236,089			2,002,868
Wealth management deposits	1,591,251			1,226,916			1,220,102
Money market	3,898,495			3,651,467			3,591,540
Savings	1,504,654			1,508,877			1,427,222
Time certificates of deposit	3,936,876			4,139,810			4,242,214
Total deposits	$	17,082,418		$	16,281,844		$	15,556,376
Mix:
Non-interest bearing	23		%	22		%	20		%
NOW and interest bearing demand deposits	13			14			13
Wealth management deposits	9			8			8
Money market	23			22			23
Savings	9			9			9
Time certificates of deposit	23			25			27
Total deposits	100		%	100		%	100		%

Wealth management deposits represent deposit balances (primarily money market accounts) at the Company’s subsidiary banks from brokerage customers of Wayne Hummer Investments, trust and asset management customers of CTC and brokerage customers from unaffiliated companies.

XML

Deposits Deposits (Summary of Deposits) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Balance:
Non-interest bearing	$ 3,910,310	$ 3,518,685	$ 3,072,430
NOW and interest bearing demand deposits	2,240,832	2,236,089	2,002,868
Wealth management deposits	1,591,251	1,226,916	1,220,102
Money market	3,898,495	3,651,467	3,591,540
Savings	1,504,654	1,508,877	1,427,222
Time certificates of deposit	3,936,876	4,139,810	4,242,214
Total deposits	$ 17,082,418	$ 16,281,844	$ 15,556,376
Mix:
Non-interest bearing	23.00%	22.00%	20.00%
NOW and interest bearing demand deposits	13.00%	14.00%	13.00%
Wealth management deposits	9.00%	8.00%	8.00%
Money market	23.00%	22.00%	23.00%
Savings	9.00%	9.00%	9.00%
Time certificates of deposit	23.00%	25.00%	27.00%
Total deposits	100.00%	100.00%	100.00%

XML

Fair Values Of Assets And Liabilities (Narrative) (Detail) - USD ($)		3 Months Ended	6 Months Ended
		Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		$ 2,162,061,000	$ 2,162,061,000	$ 1,792,078,000	$ 1,824,240,000
Mortgage loans held-for-sale, at fair value		497,283,000	497,283,000	351,290,000	363,627,000
Impaired loans—collateral based	[1]	103,357,000	103,357,000	127,412,000	137,245,000
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		2,162,061,000	2,162,061,000	1,792,078,000	1,824,240,000
Mortgage servicing rights		8,034,000	8,034,000	8,435,000	8,227,000
Remaining contractual principal balance outstanding, mortgage loans held-for-sale		475,900,000	475,900,000	327,100,000	340,500,000
Mortgage loans held-for-sale, at fair value		497,283,000	497,283,000	351,290,000	363,627,000
Impaired loans—collateral based		61,700,000	61,700,000
Portion at Other than Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		41,700,000	41,700,000
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		269,790,000	269,790,000	238,529,000	176,107,000
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		54,208,000	54,208,000	51,139,000	54,852,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights		8,034,000	8,034,000	8,435,000	8,227,000
Mortgage loans held-for-sale, at fair value		497,283,000	497,283,000	351,290,000	363,627,000
Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		269,790,000	269,790,000	238,529,000	176,107,000
Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		54,208,000	54,208,000	51,139,000	54,852,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		61,713,000	61,713,000
Other real estate owned	[2]	77,499,000	77,499,000
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights		8,034,000	8,034,000	8,435,000	8,227,000
Mortgage loans held-for-sale, at fair value		$ 0	0	0	0
Level 3 | Fair Value, Measurements, Recurring | Minimum | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		9.00%
Fair Value Inputs, Prepayment Rate		10.00%
Level 3 | Fair Value, Measurements, Recurring | Maximum | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		13.00%
Fair Value Inputs, Prepayment Rate		25.00%
Level 3 | Fair Value, Measurements, Recurring | Weighted Average | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		9.15%
Fair Value Inputs, Prepayment Rate		11.83%
Level 3 | Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		$ 58,572,000	58,572,000	58,953,000	38,053,000
Level 3 | Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		$ 24,996,000	24,996,000	23,711,000	$ 24,152,000
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		1.77%
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		2.02%
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		1.86%
Level 3 | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		$ 61,713,000	61,713,000
Other real estate owned		$ 77,499,000	$ 77,499,000
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Minimum | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Property Specific Valuation Adjustment		(85.00%)
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Maximum | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Property Specific Valuation Adjustment		87.00%
Level 3 | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Property Specific Valuation Adjustment			(3.58%)
Non-performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale, at fair value		$ 0	$ 0	$ 0		$ 0

[1] Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if the loan is current with all payments of principal and interest.

[2] Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess pledged collateral	$ 28,351
Securities sold under repurchase agreements	48,295	$ 48,566	$ 24,633
Securities Sold under Agreements to Repurchase
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	76,600
Securities sold under repurchase agreements	48,300	$ 48,600	$ 24,600
Maturity Overnight [Member] | U.S. Treasury
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	12,625
Maturity Overnight [Member] | U.S. Government agencies
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	23,084
Maturity Overnight [Member] | Municipal
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	7,518
Maturity Overnight [Member] | Corporate notes, Financial issuers
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	17,932
Maturity Overnight [Member] | Mortgage-backed securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	15,487
Maturity Overnight [Member] | Equity securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	0
Maturity Overnight [Member] | Securities Sold under Agreements to Repurchase
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	$ 76,646

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Goodwill And Other Intangible Assets (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Indefinite-lived Intangible Assets [Line Items]
Amortization of other intangible assets	$ 934	$ 1,156	$ 1,947	$ 2,319
Community banking
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase or decrease in the period			$ 17,400
Community banking | Core deposit intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets			10 years
Specialty finance
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase or decrease in the period			$ 1,400
Specialty finance | Customer list intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets			18 years
Wealth management | Customer list intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets			10 years

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Shareholders' Equity And Earnings Per Share (Computation Of Basic And Diluted Earnings Per Common Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income	$ 43,831	$ 38,541	$ 82,883	$ 73,041
Less: Preferred stock dividends and discount accretion	1,580	1,581	3,161	3,162
Net income applicable to common shares—Basic	42,251	36,960	79,722	69,879
Add: Dividends on convertible preferred stock, if dilutive	1,580	1,581	3,161	3,162
Net income applicable to common shares—Diluted	$ 43,831	$ 38,541	$ 82,883	$ 73,041
Weighted average common shares outstanding	47,567	46,520	47,404	46,358
Effect of dilutive potential common shares
Common stock equivalents	1,085	1,327	1,149	1,381
Convertible preferred stock, if dilutive	3,071	3,075	3,071	3,075
Total dilutive potential common shares	4,156	4,402	4,220	4,456
Weighted average common shares and effect of dilutive potential common shares	51,723	50,922	51,624	50,814
Net income per common share-Basic	$ 0.89	$ 0.79	$ 1.68	$ 1.51
Net income per common share-Diluted	$ 0.85	$ 0.76	$ 1.61	$ 1.44

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Summary of Segment Information

The following is a summary of certain operating information for reportable segments:

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	126,964		$	121,228		$	5,736		5	%
Specialty Finance	21,338			19,792			1,546			8
Wealth Management	4,280			4,006			274			7
Total Operating Segments	152,582			145,026			7,556			5
Intersegment Eliminations	4,310			4,154			156			4
Consolidated net interest income	$	156,892		$	149,180		$	7,712		5	%
Non-interest income:
Community Banking	$	56,253		$	33,337		$	22,916		69	%
Specialty Finance	9,135			8,455			680			8
Wealth Management	19,013			19,235			(222		)	(1	)
Total Operating Segments	84,401			61,027			23,374			38
Intersegment Eliminations	(7,388		)	(6,925		)	(463		)	(7	)
Consolidated non-interest income	$	77,013		$	54,102		$	22,911		42	%
Net revenue:
Community Banking	$	183,217		$	154,565		$	28,652		19	%
Specialty Finance	30,473			28,247			2,226			8
Wealth Management	23,293			23,241			52			—
Total Operating Segments	236,983			206,053			30,930			15
Intersegment Eliminations	(3,078		)	(2,771		)	(307		)	(11	)
Consolidated net revenue	$	233,905		$	203,282		$	30,623		15	%
Segment profit:
Community Banking	$	29,133		$	24,628		$	4,505		18	%
Specialty Finance	11,378			10,302			1,076			10
Wealth Management	3,320			3,611			(291		)	(8	)
Consolidated net income	$	43,831		$	38,541		$	5,290		14	%
Segment assets:
Community Banking	$	17,321,956		$	15,669,443		$	1,652,513		11	%
Specialty Finance	2,931,975			2,703,761			228,214			8
Wealth Management	545,993			522,477			23,516			5
Consolidated total assets	$	20,799,924		$	18,895,681		$	1,904,243		10	%

	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2015			June 30, 2014
Net interest income:
Community Banking	$	249,645		$	237,983		$	11,662		5	%
Specialty Finance	42,384			39,004			3,380			9
Wealth Management	8,469			8,105			364			4
Total Operating Segments	300,498			285,092			15,406			5
Intersegment Eliminations	8,285			8,094			191			2
Consolidated net interest income	$	308,783		$	293,186		$	15,597		5	%
Non-interest income:
Community Banking	$	101,165		$	60,656		$	40,509		67	%
Specialty Finance	17,006			16,336			670			4
Wealth Management	37,741			36,176			1,565			4
Total Operating Segments	155,912			113,168			42,744			38
Intersegment Eliminations	(14,358		)	(13,537		)	(821		)	(6	)
Consolidated non-interest income	$	141,554		$	99,631		$	41,923		42	%
Net revenue:
Community Banking	$	350,810		$	298,639		$	52,171		17	%
Specialty Finance	59,390			55,340			4,050			7
Wealth Management	46,210			44,281			1,929			4
Total Operating Segments	456,410			398,260			58,150			15
Intersegment Eliminations	(6,073		)	(5,443		)	(630		)	(12	)
Consolidated net revenue	$	450,337		$	392,817		$	57,520		15	%
Segment profit:
Community Banking	$	54,098		$	47,209		$	6,889		15	%
Specialty Finance	22,330			19,284			3,046			16
Wealth Management	6,455			6,548			(93		)	(1	)
Consolidated net income	$	82,883		$	73,041		$	9,842		13	%

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Schedule of Aging of the Company's Loan Portfolio) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		$ 72,692	$ 77,710	$ 84,034
90+ days and still accruing		36,629	37,987	63,914
Current		15,521,502	14,408,516	13,755,344
Loans, net of unearned income, excluding covered loans		15,513,650	14,409,398	13,749,996
Nonaccrual		66,339	70,420	77,344
90+ days and still accruing		26,599	20,148	29,428
Current		15,347,528	14,213,075	13,526,851
Covered loans, Nonaccrual		6,353	7,290	6,690
Covered loans, 90 plus days and still accruing		10,030	17,839	34,486
Covered loans, Current		173,974	195,441	228,493
Covered loans		193,410	226,709	275,154
Total loans		15,707,060	14,636,107	14,025,150
60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		22,336	39,281	34,580
60-89 days past due		21,003	37,977	30,577
Covered loans, 60-89 days past due		1,333	1,304	4,003
30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		53,901	72,613	87,278
30-59 days past due		52,181	67,778	85,796
Covered loans, 30-59 days past due		1,720	4,835	1,482
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		5,394	9,157	6,511
90+ days and still accruing		474	839	1,452
Current		4,306,671	3,897,717	3,598,156
Loans, net of unearned income, excluding covered loans		4,330,344	3,924,394	3,640,430
Commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,726	5,123	4,165
Commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		14,079	11,558	30,146
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		4,424	9,132	6,216
90+ days and still accruing		0	474	0
Current		2,522,162	2,213,105	1,980,489
Loans, net of unearned income, excluding covered loans		2,534,459	2,233,364	2,012,480
Commercial | Commercial and industrial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,846	3,161	4,165
Commercial | Commercial and industrial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		6,027	7,492	21,610
Commercial | Franchise
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		905	0	0
90+ days and still accruing		0	0	0
Current		227,185	231,789	222,907
Loans, net of unearned income, excluding covered loans		228,599	233,316	223,456
Commercial | Franchise | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		113	308	0
Commercial | Franchise | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		396	1,219	549
Commercial | Mortgage warehouse lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		213,797	139,003	146,531
Loans, net of unearned income, excluding covered loans		213,797	139,003	148,211
Commercial | Mortgage warehouse lines of credit | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Mortgage warehouse lines of credit | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	1,680
Commercial | Community Advanatage - homeowners association
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		114,883	106,364	94,009
Loans, net of unearned income, excluding covered loans		114,883	106,364	94,009
Commercial | Community Advanatage - homeowners association | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Community Advanatage - homeowners association | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Aircraft
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		6,831	8,065	7,847
Loans, net of unearned income, excluding covered loans		6,831	8,065	7,847
Commercial | Aircraft | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Aircraft | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Asset-based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	25	295
90+ days and still accruing		0	0	0
Current		823,265	802,608	772,002
Loans, net of unearned income, excluding covered loans		832,455	806,402	778,344
Commercial | Asset-based lending | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,767	1,375	0
Commercial | Asset-based lending | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		7,423	2,394	6,047
Commercial | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		199,185	217,487	208,913
Loans, net of unearned income, excluding covered loans		199,185	217,487	208,913
Commercial | Tax exempt | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Tax exempt | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		65	0	0
90+ days and still accruing		0	0	0
Current		187,565	159,744	144,399
Loans, net of unearned income, excluding covered loans		187,630	160,136	144,435
Commercial | Leases | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	77	0
Commercial | Leases | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	315	36
Commercial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		2,772	11,034	9,792
Loans, net of unearned income, excluding covered loans		2,772	11,034	9,792
Commercial | Other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | PCI - commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	[1]	0	0	0
90+ days and still accruing	[1]	474	365	1,452
Current	[1]	9,026	8,518	11,267
Loans, net of unearned income, excluding covered loans	[1],[2]	9,733	9,223	12,943
Commercial | PCI - commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	0	202	0
Commercial | PCI - commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	233	138	224
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		23,183	26,605	36,321
90+ days and still accruing		16,347	10,976	15,991
Current		4,787,313	4,428,053	4,261,238
Loans, net of unearned income, excluding covered loans		4,850,590	4,505,753	4,353,472
Commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		9,028	12,232	9,629
Commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		14,719	27,887	30,293
Commercial real estate | Residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		57,598	38,370	29,941
Loans, net of unearned income, excluding covered loans		57,602	38,696	29,959
Commercial real estate | Residential construction | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	250	0
Commercial real estate | Residential construction | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		4	76	18
Commercial real estate | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		19	230	839
90+ days and still accruing		0	0	0
Current		249,524	185,513	154,220
Loans, net of unearned income, excluding covered loans		249,543	187,766	155,059
Commercial real estate | Commercial construction | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial real estate | Commercial construction | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	2,023	0
Commercial real estate | Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		2,035	2,656	2,367
90+ days and still accruing		0	0	0
Current		82,280	86,779	98,444
Loans, net of unearned income, excluding covered loans		87,837	91,830	105,927
Commercial real estate | Land | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,123	0	614
Commercial real estate | Land | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,399	2,395	4,502
Commercial real estate | Office
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		6,360	7,288	10,950
90+ days and still accruing		701	0	0
Current		744,992	694,149	652,057
Loans, net of unearned income, excluding covered loans		754,817	705,432	667,917
Commercial real estate | Office | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		163	2,621	999
Commercial real estate | Office | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,601	1,374	3,911
Commercial real estate | Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		2,568	2,392	5,097
90+ days and still accruing		0	0	0
Current		624,337	617,820	610,954
Loans, net of unearned income, excluding covered loans		627,407	623,970	617,640
Commercial real estate | Industrial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		18	0	899
Commercial real estate | Industrial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		484	3,758	690
Commercial real estate | Retail
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		2,352	4,152	6,909
90+ days and still accruing		0	0	0
Current		744,285	723,919	686,292
Loans, net of unearned income, excluding covered loans		749,991	731,488	697,095
Commercial real estate | Retail | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		896	116	1,334
Commercial real estate | Retail | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,458	3,301	2,560
Commercial real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		1,730	249	689
90+ days and still accruing		0	0	0
Current		665,562	603,323	630,519
Loans, net of unearned income, excluding covered loans		668,448	605,742	636,169
Commercial real estate | Multi-family | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		933	249	244
Commercial real estate | Multi-family | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		223	1,921	4,717
Commercial real estate | Mixed use and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		8,119	9,638	9,470
90+ days and still accruing		0	0	309
Current		1,577,846	1,443,853	1,350,976
Loans, net of unearned income, excluding covered loans		1,592,122	1,465,117	1,378,439
Commercial real estate | Mixed use and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,405	2,603	5,384
Commercial real estate | Mixed use and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,752	9,023	12,300
Commercial real estate | PCI - commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	[1]	0	0	0
90+ days and still accruing	[1]	15,646	10,976	15,682
Current	[1]	40,889	34,327	47,835
Loans, net of unearned income, excluding covered loans	[1],[2]	62,823	55,712	65,267
Commercial real estate | PCI - commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	3,490	6,393	155
Commercial real estate | PCI - commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	2,798	4,016	1,595
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		5,695	6,174	5,804
90+ days and still accruing		0	0	0
Current		702,779	705,623	703,122
Loans, net of unearned income, excluding covered loans		712,350	716,293	713,642
Home equity | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		511	983	1,392
Home equity | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,365	3,513	3,324
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income, excluding covered loans		503,015	483,542	451,905
Residential real estate | Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		16,631	15,502	15,294
90+ days and still accruing		0	0	0
Current		480,427	459,224	430,364
Loans, net of unearned income, excluding covered loans		500,673	481,308	449,123
Residential real estate | Residential real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,410	267	1,487
Residential real estate | Residential real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,205	6,315	1,978
Residential real estate | PCI - residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	[1]	0	0	0
90+ days and still accruing	[1]	264	549	988
Current	[1]	1,994	1,685	1,683
Loans, net of unearned income, excluding covered loans	[1],[2]	2,342	2,234	2,782
Residential real estate | PCI - residential real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	84	0	111
Residential real estate | PCI - residential real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	0	0	0
Premium finance receivables | Commercial insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		15,156	12,705	12,298
90+ days and still accruing		9,053	7,665	10,275
Current		2,420,080	2,307,140	2,328,949
Loans, net of unearned income, excluding covered loans		2,460,408	2,350,833	2,378,529
Premium finance receivables | Commercial insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,048	5,995	12,335
Premium finance receivables | Commercial insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		11,071	17,328	14,672
Premium finance receivables | Life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		351	0	649
Current		2,145,981	1,870,669	1,635,557
Loans, net of unearned income, excluding covered loans		2,153,155	1,884,092	1,641,885
Premium finance receivables | Life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	13,084	896
Premium finance receivables | Life insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		6,823	339	4,783
Premium finance receivables | PCI - life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	[1]	0	0	0
90+ days and still accruing	[1]	0	0	0
Current	[1]	384,320	393,479	409,760
Loans, net of unearned income, excluding covered loans	[1],[2]	384,320	393,479	409,760
Premium finance receivables | PCI - life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	0	0	0
Premium finance receivables | PCI - life insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	0	0	0
Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		280	277	1,116
90+ days and still accruing		110	119	73
Current		117,963	149,485	158,022
Loans, net of unearned income, excluding covered loans		119,468	151,012	160,373
Consumer and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		196	293	562
Consumer and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		$ 919	$ 838	$ 600

[1] PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. Loan agings are based upon contractually required payments.

[2] PCI loans represent loans acquired with evidence of credit quality deterioration since origination, in accordance with ASC 310-30. See Note 6 - Loans for further discussion of these purchased loans.

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Fair Values of Assets and Liabilities

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Values of Assets and Liabilities

Fair Values of Assets and Liabilities

The Company measures, monitors and discloses certain of its assets and liabilities on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the assumptions used to determine fair value. These levels are:

• Level 1—unadjusted quoted prices in active markets for identical assets or liabilities.

• Level 2—inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3—significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

A financial instrument’s categorization within the above valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the assets or liabilities. Following is a description of the valuation methodologies used for the Company’s assets and liabilities measured at fair value on a recurring basis.

Available-for-sale and trading account securities—Fair values for available-for-sale and trading securities are typically based on prices obtained from independent pricing vendors. Securities measured with these valuation techniques are generally classified as Level 2 of the fair value hierarchy. Typically, standard inputs such as benchmark yields, reported trades for similar securities, issuer spreads, benchmark securities, bids, offers and reference data including market research publications are used to fair value a security. When these inputs are not available, broker/dealer quotes may be obtained by the vendor to determine the fair value of the security. We review the vendor’s pricing methodologies to determine if observable market information is being used, versus unobservable inputs. Fair value measurements using significant inputs that are unobservable in the market due to limited activity or a less liquid market are classified as Level 3 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale securities. The methodology and variables used as inputs in pricing Level 3 securities are derived from a combination of observable and unobservable inputs. The unobservable inputs are determined through internal assumptions that may vary from period to period due to external factors, such as market movement and credit rating adjustments.

At June 30, 2015, the Company classified $58.6 million of municipal securities as Level 3. These municipal securities are bond issues for various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing the non-rated bonds focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2015, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2015 have a call date that has passed, and are now continuously callable. When valuing these bonds, the fair value is capped at par value as the Company assumes a market participant would not pay more than par for a continuously callable bond.

At June 30, 2015, the Company held $25.0 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company utilizes an independent pricing vendor to provide a fair market valuation of these securities. The vendor’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a credit spread derived from the market price of the securities underlying debt. At June 30, 2015, the vendor considered five different securities whose implied credit spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The credit spreads ranged from 1.77%-2.02% with an average of 1.86% which was added to three-month LIBOR to be used as the discount rate input to the vendor’s model. Fair value of the securities is sensitive to the discount rate utilized as a higher discount rate results in a decreased fair value measurement.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is determined by reference to investor price sheets for loan products with similar characteristics.

Mortgage servicing rights—Fair value for mortgage servicing rights is determined utilizing a third party valuation model which stratifies the servicing rights into pools based on product type and interest rate. The fair value of each servicing rights pool is calculated based on the present value of estimated future cash flows using a discount rate commensurate with the risk associated with that pool, given current market conditions. At June 30, 2015, the Company classified $8.0 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the pool of mortgage servicing rights at June 30, 2015 was 9.15% with discount rates applied ranging from 9%-13%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, fair value estimates include assumptions about prepayment speeds which ranged from 10%-25% or a weighted average prepayment speed of 11.83% used as an input to value the pool of mortgage servicing rights at June 30, 2015. Prepayment speeds are inversely related to the fair value of mortgage servicing rights as an increase in prepayment speeds results in a decreased valuation.

Derivative instruments—The Company’s derivative instruments include interest rate swaps and caps, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans and foreign currency contracts. Interest rate swaps and caps are valued by a third party, using models that primarily use market observable inputs, such as yield curves, and are corroborated by comparison with valuations provided by the respective counterparties. The credit risk associated with derivative financial instruments that are subject to master netting agreements is measured on a net basis by counterparty portfolio. The fair value for mortgage-related derivatives is based on changes in mortgage rates from the date of the commitments. The fair value of foreign currency derivatives is computed based on change in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

Nonqualified deferred compensation assets—The underlying assets relating to the nonqualified deferred compensation plan are included in a trust and primarily consist of non-exchange traded institutional funds which are priced based by an independent third party service.

The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

	June 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	281,161	$	—	$	281,161	$	—
U.S. Government agencies	628,660		—		628,660		—
Municipal	269,790		—		211,218		58,572
Corporate notes	128,141		—		128,141		—
Mortgage-backed	800,101		—		800,101		—
Equity securities	54,208		—		29,212		24,996
Trading account securities	1,597		—		1,597		—
Mortgage loans held-for-sale	497,283		—		497,283		—
Mortgage servicing rights	8,034		—		—		8,034
Nonqualified deferred compensation assets	8,778		—		8,778		—
Derivative assets	48,918		—		48,918		—
Total	$	2,726,671	$	—	$	2,635,069	$	91,602
Derivative liabilities	$	40,500	$	—	$	40,500	$	—

	December 31, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	381,805	$	—	$	381,805	$	—
U.S. Government agencies	668,316		—		668,316		—
Municipal	238,529		—		179,576		58,953
Corporate notes	133,579		—		133,579		—
Mortgage-backed	318,710		—		318,710		—
Equity securities	51,139		—		27,428		23,711
Trading account securities	1,206		—		1,206		—
Mortgage loans held-for-sale	351,290		—		351,290		—
Mortgage servicing rights	8,435		—		—		8,435
Nonqualified deferred compensation assets	7,951		—		7,951		—
Derivative assets	47,964		—		47,964		—
Total	$	2,208,924	$	—	$	2,117,825	$	91,099
Derivative liabilities	$	41,180	$	—	$	41,180	$	—

	June 30, 2014
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	388,415	$	—	$	388,415	$	—
U.S. Government agencies	766,000		—		766,000		—
Municipal	176,107		—		138,054		38,053
Corporate notes	135,303		—		135,303		—
Mortgage-backed	303,563		—		303,563		—
Equity securities	54,852		—		30,700		24,152
Trading account securities	2,234		—		2,234		—
Mortgage loans held-for-sale	363,627		—		363,627		—
Mortgage servicing rights	8,227		—		—		8,227
Nonqualified deferred compensation assets	7,850		—		7,850		—
Derivative assets	50,967		—		50,967		—
Total	$	2,257,145	$	—	$	2,186,713	$	70,432
Derivative liabilities	$	43,650	$	—	$	43,650	$	—

The aggregate remaining contractual principal balance outstanding as of June 30, 2015, December 31, 2014 and June 30, 2014 for mortgage loans held-for-sale measured at fair value under ASC 825 was $475.9 million, $327.1 million and $340.5 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $497.3 million, $351.3 million and $363.6 million, for the same respective periods, as shown in the above tables. There were no nonaccrual loans or loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio measured at fair value as of June 30, 2015, December 31, 2014 and June 30, 2014.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2015 and 2014 are summarized as follows:

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852
Total net gains (losses) included in:
Net income (1)	—			—		182
Other comprehensive income	(713		)	340		—
Purchases	4,175			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(939		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net gains (losses) included in:
Net income (1)	—			—		(401		)
Other comprehensive income	(510		)	1,285		—
Purchases	10,849			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(10,720		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2015	$	58,572		$	24,996	$	8,034

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at March 31, 2014	$	39,772		$	23,438	$	8,719
Total net gains (losses) included in:
Net income (1)	—			—		(492		)
Other comprehensive income	73			714		—
Purchases	1,606			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,398		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2014	$	36,386		$	22,163	$	8,946
Total net gains (losses) included in:
Net income (1)	—			—		(719		)
Other comprehensive income	220			1,989		—
Purchases	4,966			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(3,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at June 30, 2014	$	38,053		$	24,152	$	8,227

(1) Changes in the balance of mortgage servicing rights are recorded as a component of mortgage banking revenue in non-interest income.

Also, the Company may be required, from time to time, to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets. For assets measured at fair value on a nonrecurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at June 30, 2015.

	June 30, 2015								Three Months Ended June 30, 2015 Fair Value Losses Recognized, net		Six Months Ended June 30, 2014 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	61,713	$	—	$	—	$	61,713	$	3,524	$	6,255
Other real estate owned, including covered other real estate owned (1)	77,499		—		—		77,499		1,483		3,845
Total	$	139,212	$	—	$	—	$	139,212	$	5,007	$	10,100

(1) Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

Impaired loans—A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. A loan restructured in a troubled debt restructuring is an impaired loan according to applicable accounting guidance. Impairment is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the fair value of the underlying collateral. Impaired loans are considered a fair value measurement where an allowance is established based on the fair value of collateral. Appraised values, which may require adjustments to market-based valuation inputs, are generally used on real estate collateral-dependent impaired loans.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 measurements of impaired loans. For more information on the Managed Assets Division review of impaired loans refer to Note 7 – Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans. At June 30, 2015, the Company had $103.4 million of impaired loans classified as Level 3. Of the $103.4 million of impaired loans, $61.7 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $41.7 million were valued based on discounted cash flows in accordance with ASC 310.

Other real estate owned (including covered other real estate owned)—Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans and is included in other assets. Other real estate owned is recorded at its estimated fair value less estimated selling costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the allowance for loan losses. Subsequent changes in value are reported as adjustments to the carrying amount and are recorded in other non-interest expense. Gains and losses upon sale, if any, are also charged to other non-interest expense. Fair value is generally based on third party appraisals and internal estimates and is therefore considered a Level 3 valuation.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 measurements for non-covered other real estate owned and covered other real estate owned. At June 30, 2015, the Company had $77.5 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the valuation adjustment determined by the Company’s appraisals. The valuation adjustments applied to other real estate owned range from an 87% write-up to a 85% write-down of the carrying value at June 30, 2015, with a weighted average write-down adjustment of 3.58%. A higher appraisal valuation results in an increased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at June 30, 2015 were as follows:

(Dollars in thousands)
	Fair Value		Valuation Methodology	Significant Unobservable Input	Range of Inputs	Weighted Average of Inputs	Impact to valuation from an increased or higher input value
Measured at fair value on a recurring basis:
Municipal Securities	$	58,572	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,996		Discounted cash flows	Discount rate	1.77%-2.02%	1.86%	Decrease
Mortgage Servicing Rights	8,034		Discounted cash flows	Discount rate	9%-13%	9.15%	Decrease
				Constant prepayment rate (CPR)	10%-25%	11.83%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	61,713	Appraisal value	N/A	N/A	N/A	N/A
Other real estate owned, including covered other real estate owned	77,499		Appraisal value	Property specific valuation adjustment	(85)%-87%	(3.58)%	Increase

The Company is required under applicable accounting guidance to report the fair value of all financial instruments on the consolidated statements of condition, including those financial instruments carried at cost. The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

	At June 30, 2015				At December 31, 2014				At June 30, 2014
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	252,209	$	252,209	$	230,707	$	230,707	$	356,978	$	356,978
Interest bearing deposits with banks	591,721		591,721		998,437		998,437		506,871		506,871
Available-for-sale securities	2,162,061		2,162,061		1,792,078		1,792,078		1,824,240		1,824,240
Trading account securities	1,597		1,597		1,206		1,206		2,234		2,234
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	89,818		89,818		91,582		91,582		84,531		84,531
Brokerage customer receivables	29,753		29,753		24,221		24,221		28,199		28,199
Mortgage loans held-for-sale, at fair value	497,283		497,283		351,290		351,290		363,627		363,627
Total loans	15,707,060		16,469,518		14,636,107		15,346,266		14,025,150		14,741,579
Mortgage servicing rights	8,034		8,034		8,435		8,435		8,227		8,227
Nonqualified deferred compensation assets	8,778		8,778		7,951		7,951		7,850		7,850
Derivative assets	48,918		48,918		47,964		47,964		50,967		50,967
FDIC indemnification asset	3,429		3,429		11,846		11,846		46,115		46,115
Accrued interest receivable and other	178,349		178,349		169,156		169,156		165,511		165,511
Total financial assets	$	19,579,010	$	20,341,468	$	18,370,980	$	19,081,139	$	17,470,500	$	18,186,929
Financial Liabilities
Non-maturity deposits	$	13,145,542	$	13,145,542	$	12,142,034	$	12,142,034	$	11,314,162	$	11,314,162
Deposits with stated maturities	3,936,876		3,937,146		4,139,810		4,143,161		4,242,214		4,255,896
Federal Home Loan Bank advances	444,017		448,870		733,050		738,113		580,582		585,792
Other borrowings	261,908		261,908		196,465		197,883		43,716		43,716
Subordinated notes	140,000		142,810		140,000		143,639		140,000		144,899
Junior subordinated debentures	249,493		250,265		249,493		250,305		249,493		250,492
Derivative liabilities	40,500		40,500		41,180		41,180		43,650		43,650
Accrued interest payable	6,827		6,827		8,001		8,001		8,399		8,399
Total financial liabilities	$	18,225,163	$	18,233,868	$	17,650,033	$	17,664,316	$	16,622,216	$	16,647,006

Not all the financial instruments listed in the table above are subject to the disclosure provisions of ASC Topic 820, as certain assets and liabilities result in their carrying value approximating fair value. These include cash and cash equivalents, interest bearing deposits with banks, brokerage customer receivables, FHLB and FRB stock, FDIC indemnification asset, accrued interest receivable and accrued interest payable and non-maturity deposits.

The following methods and assumptions were used by the Company in estimating fair values of financial instruments that were not previously disclosed.

Loans. Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are analyzed by type such as commercial, residential real estate, etc. Each category is further segmented by interest rate type (fixed and variable) and term. For variable-rate loans that reprice frequently, estimated fair values are based on carrying values. The fair value of residential loans is based on secondary market sources for securities backed by similar loans, adjusted for differences in loan characteristics. The fair value for other fixed rate loans is estimated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect credit and interest rate risks inherent in the loan. The primary impact of credit risk on the present value of the loan portfolio, however, was assessed through the use of the allowance for loan losses, which is believed to represent the current fair value of probable incurred losses for purposes of the fair value calculation. In accordance with ASC 820, the Company has categorized loans as a Level 3 fair value measurement.

Deposits with stated maturities. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently in effect for deposits of similar remaining maturities. In accordance with ASC 820, the Company has categorized deposits with stated maturities as a Level 3 fair value measurement.

Federal Home Loan Bank advances. The fair value of Federal Home Loan Bank advances is obtained from the Federal Home Loan Bank which uses a discounted cash flow analysis based on current market rates of similar maturity debt securities to discount cash flows. In accordance with ASC 820, the Company has categorized Federal Home Loan Bank advances as a Level 3 fair value measurement.

Subordinated notes. The fair value of the subordinated notes is based on a market price obtained from an independent pricing vendor. In accordance with ASC 820, the Company has categorized subordinated notes as a Level 2 fair value measurement.

Junior subordinated debentures. The fair value of the junior subordinated debentures is based on the discounted value of contractual cash flows. In accordance with ASC 820, the Company has categorized junior subordinated debentures as a Level 3 fair value measurement.

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Business Combinations (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Summary of FDIC Indemnification Asset

The following table summarizes the activity in the Company’s FDIC indemnification asset during the periods indicated:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Balance at beginning of period	$	10,224		$	60,298		$	11,846		$	85,672
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	934			2,067			2,509			3,349
Amortization	(1,206		)	(1,456		)	(2,466		)	(3,059		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,317		)	(13,645		)	(8,310		)	(29,029		)
Payments received from the FDIC	(2,206		)	(1,149		)	(150		)	(10,818		)
Balance at end of period	$	3,429		$	46,115		$	3,429		$	46,115

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Loans (Activity Related to Accretable Yield of Loans Acquired With Evidence of Credit Quality Deterioration Since Origination) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, to be amortized to indemnification asset		$ 12,300		$ 12,300
Bank acquisitions
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance		69,182	$ 97,674	77,485	$ 107,655
Acquisitions		0	0	898	0
Accretable yield amortized to interest income		(5,184)	(9,617)	(10,688)	(17,387)
Accretable yield amortized to indemnification asset	[1]	(4,089)	(11,161)	(7,665)	(16,809)
Reclassification from non-accretable difference	[2]	1,638	17,928	2,741	26,508
Increases (decreases) in interest cash flows due to payments and changes in interest rates		2,096	(2,722)	872	(7,865)
Accretable yield, ending balance	[3]	63,643	92,102	63,643	92,102
Life insurance premium finance loans acquisition
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance		1,016	6,561	1,617	8,254
Acquisitions		0	0	0	0
Accretable yield amortized to interest income		(1,131)	(1,433)	(1,732)	(3,204)
Accretable yield amortized to indemnification asset	[1]	0	0	0	0
Reclassification from non-accretable difference	[2]	115	0	115	0
Increases (decreases) in interest cash flows due to payments and changes in interest rates		0	51	0	129
Accretable yield, ending balance	[3]	$ 0	$ 5,179	$ 0	$ 5,179

[1] Represents the portion of the current period accreted yield, resulting from lower expected losses, applied to reduce the loss share indemnification asset.

[2] Reclassification is the result of subsequent increases in expected principal cash flows.

[3] As of June 30, 2015, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bank acquisitions is $12.3 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

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Available-For-Sale Securities (Schedule of Available-for-Sale Securities Reconciliation) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		$ 2,205,522	$ 1,807,913	$ 1,864,123
Gross Unrealized Gains		18,487	22,145	21,909
Gross Unrealized Losses		(61,948)	(37,980)	(61,792)
Available-for-sale Securities		2,162,061	1,792,078	1,824,240
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		288,196	388,713	399,031
Gross Unrealized Gains		138	84	354
Gross Unrealized Losses		(7,173)	(6,992)	(10,970)
Available-for-sale Securities		281,161	381,805	388,415
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		651,737	686,106	798,889
Gross Unrealized Gains		2,074	4,113	4,458
Gross Unrealized Losses		(25,151)	(21,903)	(37,347)
Available-for-sale Securities		628,660	668,316	766,000
Municipal
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		269,562	234,951	173,664
Gross Unrealized Gains		4,222	5,318	4,385
Gross Unrealized Losses		(3,994)	(1,740)	(1,942)
Available-for-sale Securities		269,790	238,529	176,107
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		124,924	129,309	129,211
Gross Unrealized Gains		1,773	2,006	2,402
Gross Unrealized Losses		(1,289)	(1,557)	(1,387)
Available-for-sale Securities		125,408	129,758	130,226
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		2,726	3,766	4,980
Gross Unrealized Gains		9	55	97
Gross Unrealized Losses		(2)	0	0
Available-for-sale Securities		2,733	3,821	5,077
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	[1]	777,087	271,129	255,082
Gross Unrealized Gains	[1]	4,053	5,448	5,190
Gross Unrealized Losses	[1]	(23,499)	(4,928)	(9,097)
Available-for-sale Securities	[1]	757,641	271,649	251,175
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	[1]	42,550	47,347	52,672
Gross Unrealized Gains	[1]	342	249	389
Gross Unrealized Losses	[1]	(432)	(535)	(673)
Available-for-sale Securities	[1]	42,460	47,061	52,388
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		48,740	46,592	50,594
Gross Unrealized Gains		5,876	4,872	4,634
Gross Unrealized Losses		(408)	(325)	(376)
Available-for-sale Securities		54,208	$ 51,139	$ 54,852
Mortgage-backed securities, subprime
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities		$ 0

[1] Consisting entirely of residential mortgage-backed securities, none of which are subprime.

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Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 43,831	$ 38,541	$ 82,883	$ 73,041
Unrealized (losses) gains on securities
Before tax	(53,400)	26,049	(27,124)	48,575
Tax effect	20,959	(10,332)	10,628	(19,136)
Net of tax	(32,441)	15,717	(16,496)	29,439
Less: Reclassification of net (losses) gains included in net income
Before tax	(24)	(336)	500	(369)
Tax effect	10	133	(196)	146
Net of tax	(14)	(203)	304	(223)
Net unrealized (losses) gains on securities	(32,427)	15,920	(16,800)	29,662
Unrealized gains (losses) on derivative instruments
Before tax	215	(626)	(346)	(724)
Tax effect	(84)	249	136	288
Net unrealized gains (losses) on derivative instruments	131	(377)	(210)	(436)
Foreign currency translation adjustment
Before tax	2,072	9,045	(10,218)	(914)
Tax effect	(556)	(2,338)	2,689	221
Net foreign currency translation adjustment	1,516	6,707	(7,529)	(693)
Total other comprehensive (loss) income	(30,780)	22,250	(24,539)	28,533
Comprehensive income	$ 13,051	$ 60,791	$ 58,344	$ 101,574

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Stock-Based Compensation Plans (Summary Of Plans' Restricted Share And Performance-Vested Stock Award Activity) (Detail) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Shares, Beginning of the Period	146,112	181,522
Shares, Granted	14,907	11,430
Shares, Vested and issued	(14,015)	(32,328)
Shares, Forfeited	0	(5,387)
Shares, Outstanding, End of the Period	147,004	155,237
Shares, Vested, but not issuable	85,000	85,000
Weighted Average Grant-Date Fair Value	$ 48.07	$ 45.65	$ 47.45	$ 43.39
Weighted Average Grant-Date Fair Value, Granted	45.35	46.10
Weighted Average Grant-Date Fair Value, Vested and issued	38.78	34.57
Weighted Average Grant-Date Fair Value, Forfeited	0.00	36.89
Weighted Average Grant-Date Fair Value, Vested, but not issuable	$ 51.88	$ 51.88
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Shares, Beginning of the Period	295,679	307,512
Shares, Granted	104,191	93,123
Shares, Vested and issued	(78,590)	(15,944)
Shares, Forfeited	(33,522)	(87,046)
Shares, Outstanding, End of the Period	287,758	297,645
Weighted Average Grant-Date Fair Value	$ 42.93	$ 38.18	$ 38.18	$ 34.01
Weighted Average Grant-Date Fair Value, Granted	44.17	46.85
Weighted Average Grant-Date Fair Value, Vested and issued	31.10	33.28
Weighted Average Grant-Date Fair Value, Forfeited	$ 32.62	$ 33.64

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Business Combinations

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Business Combinations

Business Combinations

Non-FDIC Assisted Bank Acquisitions

On January 16, 2015, the Company acquired Delavan Bancshares, Inc. ("Delavan"). Delavan was the parent company of Community Bank CBD, which had four banking locations. Community Bank CBD was merged into the Company's wholly-owned subsidiary Town Bank. The Company acquired assets with a fair value of approximately $224.1 million, including approximately $128.0 million of loans, and assumed liabilities with a fair value of approximately $186.4 million, including approximately $170.2 million of deposits. Additionally the Company recorded goodwill of $17.4 million on the acquisition.

On August 8, 2014, the Company, through its wholly-owned subsidiary Town Bank, acquired eleven branch offices and deposits of Talmer Bank & Trust. Subsequent to this date, the Company acquired loans from these branches as well. In total, the Company acquired assets with a fair value of approximately $361.3 million, including approximately $41.5 million of loans, and assumed liabilities with a fair value of approximately $361.3 million, including approximately $354.9 million of deposits. Additionally, the Company recorded goodwill of $9.7 million on the acquisition.

On July 11, 2014 the Company, through its wholly-owned subsidiary Town Bank, acquired the Pewaukee, Wisconsin branch of THE National Bank. The Company acquired assets with a fair value of approximately $94.1 million, including approximately $75.0 million of loans, and assumed deposits with a fair value of approximately $36.2 million. Additionally, the Company recorded goodwill of $16.3 million on the acquisition.

On May 16, 2014, the Company, through its wholly-owned subsidiary Hinsdale Bank and Trust Company ("Hinsdale Bank") acquired the Stone Park branch office and certain related deposits of Urban Partnership Bank ("UPB"). The Company assumed liabilities with a fair value of approximately $5.5 million, including approximately $5.4 million of deposits. Additionally, the Company recorded goodwill of $678,000 on the acquisition.

See Note 17 - Subsequent Events for discussion regarding the Company's acquisitions of Community Financial Shares, Inc ("CFIS"), Suburban Illinois Bancorp, Inc. ("Suburban") and North Bank.

FDIC-Assisted Transactions

Since 2010, the Company acquired the banking operations, including the acquisition of certain assets and the assumption of liabilities, of nine financial institutions in FDIC-assisted transactions. Loans comprise the majority of the assets acquired in nearly all of these FDIC-assisted transactions, most of which are subject to loss sharing agreements with the FDIC whereby the FDIC has agreed to reimburse the Company for 80% of losses incurred on the purchased loans, other real estate owned (“OREO”), and certain other assets. Additionally, clawback provisions within these loss share agreements with the FDIC require the Company to reimburse the FDIC in the event that actual losses on covered assets are lower than the original loss estimates agreed upon with the FDIC with respect of such assets in the loss share agreements. The Company refers to the loans subject to these loss-sharing agreements as “covered loans” and uses the term “covered assets” to refer to covered loans, covered OREO and certain other covered assets. The agreements with the FDIC require that the Company follow certain servicing procedures or risk losing the FDIC reimbursement of covered asset losses.

The loans covered by the loss sharing agreements are classified and presented as covered loans and the estimated reimbursable losses are recorded as an FDIC indemnification asset in the Consolidated Statements of Condition. The Company recorded the acquired assets and liabilities at their estimated fair values at the acquisition date. The fair value for loans reflected expected credit losses at the acquisition date. Therefore, the Company will only recognize a provision for credit losses and charge-offs on the acquired loans for any further credit deterioration subsequent to the acquisition date. See Note 7 — Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion of the allowance on covered loans.

The loss share agreements with the FDIC cover realized losses on loans, foreclosed real estate and certain other assets. These loss share assets are measured separately from the loan portfolios because they are not contractually embedded in the loans and are not transferable with the loans should the Company choose to dispose of them. Fair values at the acquisition dates were estimated based on projected cash flows available for loss-share based on the credit adjustments estimated for each loan pool and the loss share percentages. The loss share assets are recorded as FDIC indemnification assets on the Consolidated Statements of Condition. Subsequent to the acquisition date, reimbursements received from the FDIC for actual incurred losses will reduce the FDIC indemnification assets. Reductions to expected losses, to the extent such reductions to expected losses are the result of an improvement to the actual or expected cash flows from the covered assets, will also reduce the FDIC indemnification assets. In accordance with the clawback provision noted above, the Company may be required to reimburse the FDIC when actual losses are less than certain thresholds established for each lose share agreement. The balance of these estimated reimbursements in accordance with clawback provisions and any related amortization are adjusted periodically for changes in the expected losses on covered assets. Estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset on the Consolidated Statements of Condition. Although these assets are contractual receivables from the FDIC, there are no contractual interest rates. Additional expected losses, to the extent such expected losses result in recognition of an allowance for covered loan losses, will increase the FDIC indemnification asset. The corresponding amortization is recorded as a component of non-interest income on the Consolidated Statements of Income.

The following table summarizes the activity in the Company’s FDIC indemnification asset during the periods indicated:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Balance at beginning of period	$	10,224		$	60,298		$	11,846		$	85,672
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	934			2,067			2,509			3,349
Amortization	(1,206		)	(1,456		)	(2,466		)	(3,059		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,317		)	(13,645		)	(8,310		)	(29,029		)
Payments received from the FDIC	(2,206		)	(1,149		)	(150		)	(10,818		)
Balance at end of period	$	3,429		$	46,115		$	3,429		$	46,115

Specialty Finance Acquisition

On April 28, 2014, the Company, through its wholly-owned subsidiary, First Insurance Funding of Canada, Inc., acquired Policy Billing Services Inc. and Equity Premium Finance Inc., two affiliated Canadian insurance premium funding and payment services companies. Through this transaction, the Company acquired approximately $7.4 million of premium finance receivables. The Company recorded goodwill of approximately $6.5 million on the acquisition.

Purchased Credit Impaired ("PCI") Loans

Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date. Expected future cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable (“accretable yield”). The difference between contractually required payments and the cash flows expected to be collected at acquisition is referred to as the non-accretable difference and represents probable losses in the portfolio.

In determining the acquisition date fair value of PCI loans, and in subsequent accounting, the Company aggregates these purchased loans into pools of loans by common risk characteristics, such as credit risk rating and loan type. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses.

The Company purchased a portfolio of life insurance premium finance receivables in 2009. These purchased life insurance premium finance receivables are valued on an individual basis with the accretable component being recognized into interest income using the effective yield method over the estimated remaining life of the loans. The non-accretable portion is evaluated each quarter and if the loans’ credit related conditions improve, a portion is transferred to the accretable component and accreted over future periods. In the event a specific loan prepays in whole, any remaining accretable and non-accretable discount is recognized in income immediately. If credit related conditions deteriorate, an allowance related to these loans will be established as part of the provision for credit losses.

See Note 6—Loans, for more information on PCI loans.

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of TDRs Subsequent Default Under the Restructured Terms) (Detail) $ in Thousands		3 Months Ended				6 Months Ended				12 Months Ended
		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts		Jun. 30, 2015 USD ($) contracts		Jun. 30, 2014 USD ($) contracts
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		6	[1],[2]	7	[1],[2]	9	[1],[2]	13	[1],[2]	17	[3],[4]	22	[3],[4]
Total, Balance		$ 1,317	[1],[2]	$ 2,240	[1],[2]	$ 1,611	[1],[2]	$ 7,485	[1],[2]	$ 6,093	[3],[4]	$ 13,420	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	4		6		4		6
Subsequent Default, Balance	[3],[5]	$ 833		$ 4,176		$ 833		$ 4,176
Commercial | Commercial and industrial
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		0	[1],[2]	0	[1],[2]	0	[1],[2]	1	[1],[2]	1	[3],[4]	1	[3],[4]
Total, Balance		$ 0	[1],[2]	$ 0	[1],[2]	$ 0	[1],[2]	$ 88	[1],[2]	$ 1,461	[3],[4]	$ 88	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		0		0		0
Subsequent Default, Balance	[3],[5]	$ 0		$ 0		$ 0		$ 0
Commercial real estate | Land
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts	[3],[4]									0		1
Total, Balance	[3],[4]									$ 0		$ 2,352
Subsequent Default, Count | contracts	[3],[5]	0		1		0		1
Subsequent Default, Balance	[3],[5]	$ 0		$ 2,352		$ 0		$ 2,352
Commercial real estate | Office
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		0	[1],[2]	1	[1],[2]	0	[1],[2]	1	[1],[2]	1	[3],[4]	2	[3],[4]
Total, Balance		$ 0	[1],[2]	$ 790	[1],[2]	$ 0	[1],[2]	$ 790	[1],[2]	$ 720	[3],[4]	$ 1,345	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		0		0		0
Subsequent Default, Balance	[3],[5]	$ 0		$ 0		$ 0		$ 0
Commercial real estate | Industrial
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		1	[1],[2]	0	[1],[2]	1	[1],[2]	1	[1],[2]	2	[3],[4]	1	[3],[4]
Total, Balance		$ 169	[1],[2]	$ 0	[1],[2]	$ 169	[1],[2]	$ 1,078	[1],[2]	$ 854	[3],[4]	$ 1,078	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		1		0		1
Subsequent Default, Balance	[3],[5]	$ 0		$ 1,078		$ 0		$ 1,078
Commercial real estate | Retail
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		0	[1],[2]	0	[1],[2]	0	[1],[2]	1	[1],[2]	0	[3],[4]	1	[3],[4]
Total, Balance		$ 0	[1],[2]	$ 0	[1],[2]	$ 0	[1],[2]	$ 202	[1],[2]	$ 0	[3],[4]	$ 202	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		0		0		0
Subsequent Default, Balance	[3],[5]	$ 0		$ 0		$ 0		$ 0
Commercial real estate | Multi-family
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		0	[1],[2]	1	[1],[2]	0	[1],[2]	1	[1],[2]	0	[3],[4]	1	[3],[4]
Total, Balance		$ 0	[1],[2]	$ 181	[1],[2]	$ 0	[1],[2]	$ 181	[1],[2]	$ 0	[3],[4]	$ 181	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		0		0		0
Subsequent Default, Balance	[3],[5]	$ 0		$ 0		$ 0		$ 0
Commercial real estate | Mixed use and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		0	[1],[2]	4	[1],[2]	0	[1],[2]	7	[1],[2]	0	[3],[4]	11	[3],[4]
Total, Balance		$ 0	[1],[2]	$ 1,049	[1],[2]	$ 0	[1],[2]	$ 4,926	[1],[2]	$ 0	[3],[4]	$ 6,436	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	0		3		0		3
Subsequent Default, Balance	[3],[5]	$ 0		$ 577		$ 0		$ 577
Residential real estate and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | contracts		5	[1],[2]	1	[1],[2]	8	[1],[2]	1	[1],[2]	13	[3],[4]	4	[3],[4]
Total, Balance		$ 1,148	[1],[2]	$ 220	[1],[2]	$ 1,442	[1],[2]	$ 220	[1],[2]	$ 3,058	[3],[4]	$ 1,738	[3],[4]
Subsequent Default, Count | contracts	[3],[5]	4		1		4		1
Subsequent Default, Balance	[3],[5]	$ 833		$ 169		$ 833		$ 169

[1] Balances represent the recorded investment in the loan at the time of the restructuring.

[2] TDRs may have more than one modification representing a concession. As such, TDRs during the period may be represented in more than one of the categories noted above.

[3] Balances represent the recorded investment in the loan at the time of the restructuring.

[4] Total TDRs represent all loans restructured in TDRs during the previous twelve months from the date indicated.

[5] TDRs considered to be in payment default are over 30 days past-due subsequent to the restructuring.

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Fair Values Of Assets And Liabilities (Summary Of Assets Measured At Fair Value On A Nonrecurring Basis) (Detail) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	[1]	$ 103,357	$ 103,357	$ 127,412	$ 137,245
Fair Value Losses Recognized, Impaired loans—collateral based		3,524	6,255
Fair Value Losses Recognized, Other real estate owned	[2]	1,483	3,845
Fair Value Losses Recognized, Total		5,007	10,100
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		61,713	61,713
Other real estate owned	[2]	77,499	77,499
Total		139,212	139,212
Fair Value, Measurements, Nonrecurring [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		0	0
Other real estate owned	[2]	0	0
Total		0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		0	0
Other real estate owned	[2]	0	0
Total		0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		61,713	61,713
Other real estate owned		77,499	77,499
Total		$ 139,212	$ 139,212

[1] Impaired loans are considered by the Company to be non-accrual loans, TDRs or loans with principal and/or interest at risk, even if the loan is current with all payments of principal and interest.

[2] Fair value losses recognized, net on other real estate owned include valuation adjustments and charge-offs during the respective period.

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Junior Subordinated Debentures (Narrative) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Subordinated Borrowing [Line Items]
Percentage ownership interest in subsidiary trusts	100.00%
Common securities, approximate percentage of junior subordinated debentures	3.00%
Trust preferred securities, approximate percentage of junior subordinated debentures	97.00%
Junior subordinated debentures	$ 249,493	$ 249,493	$ 249,493
Consecutive quarters of deferred payment	20
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate	2.47%
Debt, Hedge Adjusted Weighted Average Interest Rate	3.28%
Tier One Risk Based Capital	$ 60,500
Tier Two Risk Based Capital	181,500
Cash Flow Hedge of Junior Subordinated Debentures | Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swaps and Caps
Subordinated Borrowing [Line Items]
Notional amount	$ 225,000

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Available-For-Sale Securities (Tables)

6 Months Ended

Jun. 30, 2015

Available-for-sale Securities [Abstract]

Schedule of the Available-for-Sale Securities Reconciliation

The following tables are a summary of the available-for-sale securities portfolio as of the dates shown:

	June 30, 2015
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	288,196	$	138	$	(7,173	)	$	281,161
U.S. Government agencies	651,737		2,074		(25,151		)	628,660
Municipal	269,562		4,222		(3,994		)	269,790
Corporate notes:
Financial issuers	124,924		1,773		(1,289		)	125,408
Other	2,726		9		(2		)	2,733
Mortgage-backed: (1)
Mortgage-backed securities	777,087		4,053		(23,499		)	757,641
Collateralized mortgage obligations	42,550		342		(432		)	42,460
Equity securities	48,740		5,876		(408		)	54,208
Total available-for-sale securities	$	2,205,522	$	18,487	$	(61,948	)	$	2,162,061

	December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	388,713	$	84	$	(6,992	)	$	381,805
U.S. Government agencies	686,106		4,113		(21,903		)	668,316
Municipal	234,951		5,318		(1,740		)	238,529
Corporate notes:
Financial issuers	129,309		2,006		(1,557		)	129,758
Other	3,766		55		—			3,821
Mortgage-backed: (1)
Mortgage-backed securities	271,129		5,448		(4,928		)	271,649
Collateralized mortgage obligations	47,347		249		(535		)	47,061
Equity securities	46,592		4,872		(325		)	51,139
Total available-for-sale securities	$	1,807,913	$	22,145	$	(37,980	)	$	1,792,078

	June 30, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
U.S. Treasury	$	399,031	$	354	$	(10,970	)	$	388,415
U.S. Government agencies	798,889		4,458		(37,347		)	766,000
Municipal	173,664		4,385		(1,942		)	176,107
Corporate notes:
Financial issuers	129,211		2,402		(1,387		)	130,226
Other	4,980		97		—			5,077
Mortgage-backed: (1)
Mortgage-backed securities	255,082		5,190		(9,097		)	251,175
Collateralized mortgage obligations	52,672		389		(673		)	52,388
Equity securities	50,594		4,634		(376		)	54,852
Total available-for-sale securities	$	1,864,123	$	21,909	$	(61,792	)	$	1,824,240

(1) Consisting entirely of residential mortgage-backed securities, none of which are subprime.

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

The following table presents the portion of the Company’s available-for-sale securities portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2015:

	Continuous unrealized losses existing for less than 12 months					Continuous unrealized losses existing for greater than 12 months					Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury	$	207,997	$	(7,173	)	$	—	$	—		$	207,997	$	(7,173	)
U.S. Government agencies	231,514		(8,817		)	248,487		(16,334		)	480,001		(25,151		)
Municipal	96,407		(2,545		)	37,578		(1,449		)	133,985		(3,994		)
Corporate notes:
Financial issuers	13,117		(94		)	44,762		(1,195		)	57,879		(1,289		)
Other	998		(2		)	—		—			998		(2		)
Mortgage-backed:
Mortgage-backed securities	551,405		(16,869		)	120,626		(6,630		)	672,031		(23,499		)
Collateralized mortgage obligations	5,158		(31		)	9,877		(401		)	15,035		(432		)
Equity securities	2,909		(37		)	8,505		(371		)	11,414		(408		)
Total	$	1,109,505	$	(35,568	)	$	469,835	$	(26,380	)	$	1,579,340	$	(61,948	)

Schedule of Realized Gain (Loss)

The following table provides information as to the amount of gross gains and gross losses realized and proceeds received through the sales of available-for-sale investment securities:

	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2015			2014			2015			2014
Realized gains	$	14		$	99		$	567		$	154
Realized losses	(38		)	(435		)	(67		)	(523		)
Net realized (losses) gains	$	(24	)	$	(336	)	$	500		$	(369	)
Other than temporary impairment charges	—			—			—			—
(Losses) gains on available-for-sale securities, net	$	(24	)	$	(336	)	$	500		$	(369	)
Proceeds from sales of available-for-sale securities	$	498,501		$	169,753		$	1,134,033		$	196,042

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of securities as of June 30, 2015, December 31, 2014 and June 30, 2014, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2015				December 31, 2014				June 30, 2014
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	141,792	$	141,897	$	285,596	$	285,889	$	173,991	$	174,220
Due in one to five years	261,285		261,146		172,647		172,885		361,300		362,423
Due in five to ten years	291,451		285,192		331,389		325,644		319,641		310,196
Due after ten years	642,617		619,517		653,213		637,811		650,843		618,986
Mortgage-backed	819,637		800,101		318,476		318,710		307,754		303,563
Equity securities	48,740		54,208		46,592		51,139		50,594		54,852
Total available-for-sale securities	$	2,205,522	$	2,162,061	$	1,807,913	$	1,792,078	$	1,864,123	$	1,824,240

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Derivative Financial Instruments Derivative Financial Instruments (Schedule Of Cash Flow Hedging Instruments) (Detail) $ in Thousands	Jun. 30, 2015 USD ($)
Total Interest Rate Cap
Derivative [Line Items]
Notional amount	$ 796,500
Fair Value Asset (Liability)	782
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap Fifty Million Notional September Two Thousand Sixteen Maturity
Derivative [Line Items]
Notional amount	50,000
Fair Value Asset (Liability)	(1,027)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap Twenty Five Million Notional October Two Thousand Sixteen Maturity
Derivative [Line Items]
Notional amount	25,000
Fair Value Asset (Liability)	(546)
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Swap
Derivative [Line Items]
Notional amount	75,000
Fair Value Asset (Liability)	(1,573)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap Forty Three Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity
Derivative [Line Items]
Notional amount	43,500
Fair Value Asset (Liability)	11
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap Two Hundred Sixteen Million Five Hundred Thousand Notional August Two Thousand Sixteen Maturity
Derivative [Line Items]
Notional amount	216,500
Fair Value Asset (Liability)	34
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap Fifty Million Notional September Two Thousand Seventeen Maturity
Derivative [Line Items]
Notional amount	50,000
Fair Value Asset (Liability)	253
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap Forty Million Notional September Two Thousand Seventeen Maturity
Derivative [Line Items]
Notional amount	40,000
Fair Value Asset (Liability)	216
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Cap
Derivative [Line Items]
Notional amount	350,000
Fair Value Asset (Liability)	514
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swaps and Caps
Derivative [Line Items]
Notional amount	425,000
Fair Value Asset (Liability)	$ (1,059)

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Label	Element	Value
Provision for Loan, Lease, and Other Losses	us-gaap_ProvisionForLoanLeaseAndOtherLosses	$ 6,660
Provision for Loan, Lease, and Other Losses	us-gaap_ProvisionForLoanLeaseAndOtherLosses	$ 9,482

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Shareholders' Equity and Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Components Of Other Comprehensive Income (Loss)

The following tables summarize the components of other comprehensive income (loss), including the related income tax effects, and the related amount reclassified to net income for the periods presented (in thousands).

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)
Other comprehensive (loss) income during the period, net of tax, before reclassifications	(32,441		)	(147		)	1,516			(31,072		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	14			278			—			292
Net other comprehensive (loss) income during the period, net of tax	$	(32,427	)	$	131		$	1,516		$	(30,780	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive loss during the period, net of tax, before reclassifications	(16,496		)	(740		)	(7,529		)	(24,765		)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(304		)	530			—			226
Net other comprehensive loss during the period, net of tax	$	(16,800	)	$	(210	)	$	(7,529	)	$	(24,539	)
Balance at June 30, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Balance at April 1, 2014	$	(39,923	)	$	(2,521	)	$	(14,309	)	$	(56,753	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,717			(691		)	6,707			21,733
Amount reclassified from accumulated other comprehensive income (loss), net of tax	203			314			—			517
Net other comprehensive income (loss) during the period, net of tax	$	15,920		$	(377	)	$	6,707		$	22,250
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)
Balance at January 1, 2014	$	(53,665	)	$	(2,462	)	$	(6,909	)	$	(63,036	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	29,439			(1,047		)	(693		)	27,699
Amount reclassified from accumulated other comprehensive income (loss), net of tax	223			611			—			834
Net other comprehensive income (loss) during the period, net of tax	$	29,662		$	(436	)	$	(693	)	$	28,533
Balance at June 30, 2014	$	(24,003	)	$	(2,898	)	$	(7,602	)	$	(34,503	)

Other Comprehensive Income Reclassified from AOCI

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2015			2014			2015			2014
Accumulated unrealized losses on securities
(Losses) gains included in net income	$	(24	)	$	(336	)	$	500		$	(369	)	(Losses) gains on available-for-sale securities, net
	(24		)	(336		)	500			(369		)	Income before taxes
Tax effect	$	10		$	133		$	(196	)	$	146		Income tax expense
Net of tax	$	(14	)	$	(203	)	$	304		$	(223	)	Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on junior subordinated debentures	$	457		$	521		$	871		$	1,014		Interest on junior subordinated debentures
	(457		)	(521		)	(871		)	(1,014		)	Income before taxes
Tax effect	$	179		$	207		$	341		$	403		Income tax expense
Net of tax	$	(278	)	$	(314	)	$	(530	)	$	(611	)	Net income

Computation Of Basic And Diluted Earnings Per Common Share

The following table shows the computation of basic and diluted earnings per share for the periods indicated:

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2015		June 30, 2014		June 30, 2015		June 30, 2015
Net income		$	43,831	$	38,541	$	82,883	$	73,041
Less: Preferred stock dividends and discount accretion		1,580		1,581		3,161		3,162
Net income applicable to common shares—Basic	(A)	42,251		36,960		79,722		69,879
Add: Dividends on convertible preferred stock, if dilutive		1,580		1,581		3,161		3,162
Net income applicable to common shares—Diluted	(B)	43,831		38,541		82,883		73,041
Weighted average common shares outstanding	(C)	47,567		46,520		47,404		46,358
Effect of dilutive potential common shares
Common stock equivalents		1,085		1,327		1,149		1,381
Convertible preferred stock, if dilutive		3,071		3,075		3,071		3,075
Total dilutive potential common shares		4,156		4,402		4,220		4,456
Weighted average common shares and effect of dilutive potential common shares	(D)	51,723		50,922		51,624		50,814
Net income per common share:
Basic	(A/C)	$	0.89	$	0.79	$	1.68	$	1.51
Diluted	(B/D)	$	0.85	$	0.76	$	1.61	$	1.44

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

The Company primarily enters into derivative financial instruments as part of its strategy to manage its exposure to changes in interest rates. Derivative instruments represent contracts between parties that result in one party delivering cash to the other party based on a notional amount and an underlying term (such as a rate, security price or price index) specified in the contract. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying term. Derivatives are also implicit in certain contracts and commitments.

The derivative financial instruments currently used by the Company to manage its exposure to interest rate risk include: (1) interest rate swaps and caps to manage the interest rate risk of certain fixed and variable rate assets and variable rate liabilities; (2) interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market; (3) forward commitments for the future delivery of such mortgage loans to protect the Company from adverse changes in interest rates and corresponding changes in the value of mortgage loans held-for-sale; and (4) covered call options to economically hedge specific investment securities and receive fee income effectively enhancing the overall yield on such securities to compensate for net interest margin compression. The Company also enters into derivatives (typically interest rate swaps) with certain qualified borrowers to facilitate the borrowers’ risk management strategies and concurrently enters into mirror-image derivatives with a third party counterparty, effectively making a market in the derivatives for such borrowers. Additionally, the Company enters into foreign currency contracts to manage foreign exchange risk associated with certain foreign currency denominated assets.

The Company has purchased interest rate cap derivatives to hedge or manage its own risk exposures. Certain interest rate cap derivatives have been designated as cash flow hedge derivatives of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures and certain deposits. Other cap derivatives are not designated for hedge accounting but are economic hedges of the Company's overall portfolio, therefore any mark to market changes in the value of these caps are recognized in earnings.

Below is a summary of the interest rate cap derivatives held by the Company as of June 30, 2015:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	June 30, 2015
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	2
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	34
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	11
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	14
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	199
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	53
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	253
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	216
		$	796,500		$	782

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of other comprehensive income depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge. Generally, changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges, to the extent they are effective hedges, are recorded as a component of other comprehensive income, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815, including changes in fair value related to the ineffective portion of cash flow hedges, are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated through comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2015, December 31, 2014 and June 30, 2014:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	June 30, 2015		December 31, 2014		June 30, 2014		June 30, 2015		December 31, 2014		June 30, 2014
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	514	$	1,390	$	1,663	$	1,573	$	1,994	$	2,727
Interest rate derivatives designated as Fair Value Hedges	39		52		65		—		—		3
Total derivatives designated as hedging instruments under ASC 815	$	553	$	1,442	$	1,728	$	1,573	$	1,994	$	2,730
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	36,194	$	36,399	$	35,733	$	35,032	$	34,927	$	34,003
Interest rate lock commitments	11,990		10,028		13,479		—		20		9
Forward commitments to sell mortgage loans	—		23		27		3,805		4,239		6,901
Foreign exchange contracts	181		72		—		89		—		7
Total derivatives not designated as hedging instruments under ASC 815	$	48,365	$	46,522	$	49,239	$	38,926	$	39,186	$	40,920
Total Derivatives	$	48,918	$	47,964	$	50,967	$	40,499	$	41,180	$	43,650

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to net interest income and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps and interest rate caps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate caps designated as cash flow hedges involve the receipt of payments at the end of each period in which the interest rate specified in the contract exceeds the agreed upon strike price.

During the first quarter of 2014, the Company designated two existing interest rate cap derivatives as cash flow hedges of variable rate deposits. The cap derivatives had notional amounts of $216.5 million and $43.5 million, respectively, both maturing in August 2016. Additionally, as of June 30, 2015, the Company had two interest rate swaps and two interest rate caps designated as hedges of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures. The effective portion of changes in the fair value of these cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified to interest expense as interest payments are made on the Company’s variable rate junior subordinated debentures. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income. The ineffective portion of the change in fair value of these derivatives is recognized directly in earnings; however, no hedge ineffectiveness was recognized during the six months ended June 30, 2015 or June 30, 2014. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

The table below provides details on each of these cash flow hedges as of June 30, 2015:

	June 30, 2015
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	50,000		(1,027		)
October 2016	25,000		(546		)
Total Interest Rate Swaps	75,000		(1,573		)
Interest Rate Caps:
August 2016	43,500		11
August 2016	216,500		34
September 2017	50,000		253
September 2017	40,000		216
Total Interest Rate Caps	350,000		514
Total Cash Flow Hedges	$	425,000	$	(1,059	)

A rollforward of the amounts in accumulated other comprehensive loss related to interest rate derivatives designated as cash flow hedges follows:

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2015			June 30, 2014			June 30, 2015			June 30, 2014
Unrealized loss at beginning of period	$	(4,623	)	$	(4,069	)	$	(4,062	)	$	(3,971	)
Amount reclassified from accumulated other comprehensive loss to interest expense on junior subordinated debentures	475			521			889			1,014
Amount of loss recognized in other comprehensive income	(260		)	(1,147		)	(1,235		)	(1,738		)
Unrealized loss at end of period	$	(4,408	)	$	(4,695	)	$	(4,408	)	$	(4,695	)

As of June 30, 2015, the Company estimates that during the next twelve months, $2.8 million will be reclassified from accumulated other comprehensive loss as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of June 30, 2015, the Company has three interest rate swaps with an aggregate notional amount of $4.5 million that were designated as fair value hedges associated with fixed rate commercial franchise loans.

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $2,000 and a net loss of $1,000 in other income related to hedge ineffectiveness for the three months ended June 30, 2015 and 2014, respectively and a net loss of $2,000 and $3,000 for the respective year-to-date periods.

On June 1, 2013, the Company de-designated a $96.5 million cap which was previously designated as a fair value hedge of interest rate risk associated with an embedded cap in one of the Company’s floating rate loans. The hedged loan was restructured which resulted in the interest rate cap no longer qualifying as an effective fair value hedge. As such, the interest rate cap derivative is no longer accounted for under hedge accounting and all changes in value subsequent to June 1, 2013 are recorded in earnings. Additionally, the Company has recorded amortization of the basis in the previously hedged item as a reduction to interest income of $43,000 and $86,000 in the three month and six month periods ended June 30, 2015 and 2014, respectively.

The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2015 and 2014:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative Three Months Ended					Amount of (Loss)/Gain Recognized in Income on Hedged Item Three Months Ended					Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Three Months Ended
		June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014		June 30, 2015		June 30, 2014
Interest rate swaps	Trading gains (losses), net	$	17	$	(26	)	$	(15	)	$	25	$	2	$	(1	)

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Losses Recognized in Income on Derivative Six Months Ended						Amount of Gains Recognized in Income on Hedged Item Six Months Ended				Income Statement Losses due to Hedge Ineffectiveness Six Months Ended
		June 30, 2015			June 30, 2014			June 30, 2015		June 30, 2014		June 30, 2015			June 30, 2014
Interest rate swaps	Trading (losses) gains, net	$	(15	)	$	(43	)	$	13	$	40	$	(2	)	$	(3	)

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as hedges are used to manage the Company’s exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of ASC 815. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.

Interest Rate Derivatives—The Company has interest rate derivatives, including swaps and option products, resulting from a service the Company provides to certain qualified borrowers. The Company’s banking subsidiaries execute certain derivative products (typically interest rate swaps) directly with qualified commercial borrowers to facilitate their respective risk management strategies. For example, these arrangements allow the Company’s commercial borrowers to effectively convert a variable rate loan to a fixed rate. In order to minimize the Company’s exposure on these transactions, the Company simultaneously executes offsetting derivatives with third parties. In most cases, the offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. However, to the extent that the derivatives are not a mirror-image and because of differences in counterparty credit risk, changes in fair value will not completely offset resulting in some earnings impact each period. Changes in the fair value of these derivatives are included in non-interest income. At June 30, 2015, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $3.2 billion (all interest rate swaps and caps with customers and third parties) related to this program. These interest rate derivatives had maturity dates ranging from July 2015 to February 2045.

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of our residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At June 30, 2015, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $902.9 million and interest rate lock commitments with an aggregate notional amount of approximately $531.5 million. Additionally, the Company’s total mortgage loans held-for-sale at June 30, 2015 was $497.3 million. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

Foreign Currency Derivatives—These derivatives include foreign currency contracts used to manage the foreign exchange risk associated with foreign currency denominated assets and transactions. Foreign currency contracts, which include spot and forward contracts, represent agreements to exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. As a result of fluctuations in foreign currencies, the U.S. dollar-equivalent value of the foreign currency denominated assets or forecasted transactions increase or decrease. Gains or losses on the derivative instruments related to these foreign currency denominated assets or forecasted transactions are expected to substantially offset this variability. As of June 30, 2015 the Company held foreign currency derivatives with an aggregate notional amount of approximately $14.0 million.

Other Derivatives—Periodically, the Company will sell options to a bank or dealer for the right to purchase certain securities held within the banks’ investment portfolios (covered call options). These option transactions are designed primarily to mitigate overall interest rate risk and to increase the total return associated with the investment securities portfolio. These options do not qualify as hedges pursuant to ASC 815, and, accordingly, changes in fair value of these contracts are recognized in non-interest income. There were no covered call options outstanding as of June 30, 2015, December 31, 2014 or June 30, 2014.

As discussed above, the Company has entered into interest rate cap derivatives to protect the Company in a rising rate environment against increased margin compression due to the repricing of variable rate liabilities and lack of repricing of fixed rate loans and/or securities. As of June 30, 2015, the Company held four interest rate cap derivative contracts, which are not designated in hedge relationships, with an aggregate notional value of $446.5 million.

Amounts included in the Consolidated Statements of Income related to derivative instruments not designated in hedge relationships were as follows:

(Dollars in thousands)		Three Months Ended					Six Months Ended
Derivative	Location in income statement	June 30, 2015		June 30, 2014			June 30, 2015			June 30, 2014
Interest rate swaps and caps	Trading gains (losses), net	$	133	$	(737	)	$	(317	)	$	(1,414	)
Mortgage banking derivatives	Mortgage banking revenue	299		(4,885		)	2,393			(1,208		)
Covered call options	Fees from covered call options	4,565		1,244			8,925			2,786
Foreign exchange contracts	Trading gains (losses), net	71		(10		)	20			(11		)

Credit Risk

Derivative instruments have inherent risks, primarily market risk and credit risk. Market risk is associated with changes in interest rates and credit risk relates to the risk that the counterparty will fail to perform according to the terms of the agreement. The amounts potentially subject to market and credit risks are the streams of interest payments under the contracts and the market value of the derivative instrument and not the notional principal amounts used to express the volume of the transactions. Market and credit risks are managed and monitored as part of the Company's overall asset-liability management process, except that the credit risk related to derivatives entered into with certain qualified borrowers is managed through the Company's standard loan underwriting process since these derivatives are secured through collateral provided by the loan agreements. Actual exposures are monitored against various types of credit limits established to contain risk within parameters. When deemed necessary, appropriate types and amounts of collateral are obtained to minimize credit exposure.

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. As of June 30, 2015 the fair value of interest rate derivatives in a net liability position that were subject to such agreements, which includes accrued interest related to these agreements, was $35.4 million. If the Company had breached any of these provisions at June 30, 2015 it would have been required to settle its obligations under the agreements at the termination value and would have been required to pay any additional amounts due in excess of amounts previously posted as collateral with the respective counterparty.

The Company's is also exposed to the credit risk of its commercial borrowers who are counterparties to interest rate derivatives with the banks. This counterparty risk related to the commercial borrowers is managed and monitored through the banks' standard underwriting process applicable to loans since these derivatives are secured through collateral provided by the loan agreement. The counterparty risk associated with the mirror-image swaps executed with third parties is monitored and managed in connection with the Company's overall asset liability management process.

The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative assets and liabilities on the Consolidated Statements of Condition. The tables below summarize the Company's interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets									Derivative Liabilities
	Fair Value									Fair Value
(Dollars in thousands)	June 30, 2015			December 31, 2014			June 30, 2014			June 30, 2015			December 31, 2014			June 30, 2014
Gross Amounts Recognized	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	36,747		$	37,841		$	37,461		$	36,605		$	36,921		$	36,733
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(1,896		)	(2,771		)	(3,738		)	(1,896		)	(2,771		)	(3,738		)
Collateral Posted (1)	—			—			—			(34,709		)	(34,150		)	(26,354		)
Net Credit Exposure	$	34,851		$	35,070		$	33,723		$	—		$	—		$	6,641

(1) As of June 30, 2015 and December 31, 2014, the Company posted collateral of $36.0 million and $43.8 million, respectively, which resulted in excess collateral with its counterparties. For purposes of this disclosure, the amount of posted collateral is limited to the amount offsetting the derivative liability.