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 March 31, 2016

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, 48,560,301 shares, as of April 30, 2016

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	50
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	85
ITEM 4.	Controls and Procedures	87
	PART II. — OTHER INFORMATION
ITEM 1.	Legal Proceedings	88
ITEM 1A.	Risk Factors	88
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	89
ITEM 3.	Defaults Upon Senior Securities	NA
ITEM 4.	Mine Safety Disclosures	NA
ITEM 5.	Other Information	NA
ITEM 6.	Exhibits	89
	Signatures	90

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
	(Unaudited)						(Unaudited)
(In thousands, except share data)	March 31, 2016			December 31, 2015			March 31, 2015
Assets
Cash and due from banks	$	208,480		$	271,454		$	286,743
Federal funds sold and securities purchased under resale agreements	3,820			4,341			4,129
Interest bearing deposits with banks	817,013			607,782			697,799
Available-for-sale securities, at fair value	770,983			1,716,388			1,721,030
Held-to-maturity securities, at amortized cost ($924.3 million and $878.1 million fair value at March 31, 2016 and December 31, 2015, respectively)	911,715			884,826			—
Trading account securities	2,116			448			7,811
Federal Home Loan Bank and Federal Reserve Bank stock	113,222			101,581			92,948
Brokerage customer receivables	28,266			27,631			25,287
Mortgage loans held-for-sale	314,554			388,038			446,355
Loans, net of unearned income, excluding covered loans	17,446,413			17,118,117			14,953,059
Covered loans	138,848			148,673			209,694
Total loans	17,585,261			17,266,790			15,162,753
Less: Allowance for loan losses	110,171			105,400			94,446
Less: Allowance for covered loan losses	2,507			3,026			1,878
Net loans	17,472,583			17,158,364			15,066,429
Premises and equipment, net	591,608			592,256			559,281
Lease investments, net	89,337			63,170			383
FDIC indemnification asset	—			—			10,224
Accrued interest receivable and other assets	647,853			597,099			526,029
Trade date securities receivable	1,008,613			—			488,063
Goodwill	484,280			471,761			420,197
Other intangible assets	23,725			24,209			18,858
Total assets	$	23,488,168		$	22,909,348		$	20,371,566
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	5,205,410		$	4,836,420		$	3,779,609
Interest bearing	14,011,661			13,803,214			13,159,160
Total deposits	19,217,071			18,639,634			16,938,769
Federal Home Loan Bank advances	799,482			853,431			406,839
Other borrowings	253,126			265,785			186,716
Subordinated notes	138,888			138,861			138,782
Junior subordinated debentures	253,566			268,566			249,493
Trade date securities payable	—			538			2,929
Accrued interest payable and other liabilities	407,593			390,259			316,964
Total liabilities	21,069,726			20,557,074			18,240,492
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:
Series C - $1,000 liquidation value; 126,257 shares issued and outstanding at March 31, 2016, 126,287 shares issued and outstanding at December 31, 2015, and 126,427 shares issued and outstanding at March 31, 2015	126,257			126,287			126,427
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at March 31, 2016 and December 31, 2015 and no shares issued and outstanding at March 31, 2015	125,000			125,000			—
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at March 31, 2016, December 31, 2015 and March 31, 2015; 48,608,559 shares issued at March 31, 2016, 48,468,894 shares issued at December 31, 2015 and 47,474,721 shares issued at March 31, 2015	48,608			48,469			47,475
Surplus	1,194,750			1,190,988			1,156,542
Treasury stock, at cost, 89,561 shares at March 31, 2016, 85,615 shares at December 31, 2015, and 85,113 shares at March 31, 2015	(4,145		)	(3,973		)	(3,948		)
Retained earnings	967,882			928,211			835,669
Accumulated other comprehensive loss	(39,910		)	(62,708		)	(31,091		)
Total shareholders’ equity	2,418,442			2,352,274			2,131,074
Total liabilities and shareholders’ equity	$	23,488,168		$	22,909,348		$	20,371,566

See accompanying notes to unaudited consolidated financial statements.

1

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
	Three Months Ended
(In thousands, except per share data)	March 31, 2016			March 31, 2015
Interest income
Interest and fees on loans	$	173,127		$	154,676
Interest bearing deposits with banks	746			316
Federal funds sold and securities purchased under resale agreements	1			2
Investment securities	17,190			14,400
Trading account securities	11			13
Federal Home Loan Bank and Federal Reserve Bank stock	937			769
Brokerage customer receivables	219			181
Total interest income	192,231			170,357
Interest expense
Interest on deposits	12,781			11,814
Interest on Federal Home Loan Bank advances	2,886			2,156
Interest on other borrowings	1,058			788
Interest on subordinated notes	1,777			1,775
Interest on junior subordinated debentures	2,220			1,933
Total interest expense	20,722			18,466
Net interest income	171,509			151,891
Provision for credit losses	8,034			6,079
Net interest income after provision for credit losses	163,475			145,812
Non-interest income
Wealth management	18,320			18,100
Mortgage banking	21,735			27,800
Service charges on deposit accounts	7,406			6,297
Gains on available-for-sale securities, net	1,325			524
Fees from covered call options	1,712			4,360
Trading losses, net	(168		)	(477		)
Operating lease income, net	2,806			65
Other	15,616			7,872
Total non-interest income	68,752			64,541
Non-interest expense
Salaries and employee benefits	95,811			90,130
Equipment	8,767			7,779
Operating lease equipment depreciation	2,050			57
Occupancy, net	11,948			12,351
Data processing	6,519			5,448
Advertising and marketing	3,779			3,907
Professional fees	4,059			4,664
Amortization of other intangible assets	1,298			1,013
FDIC insurance	3,613			2,987
OREO expense, net	560			1,411
Other	15,326			17,571
Total non-interest expense	153,730			147,318
Income before taxes	78,497			63,035
Income tax expense	29,386			23,983
Net income	$	49,111		$	39,052
Preferred stock dividends and discount accretion	3,628			1,581
Net income applicable to common shares	$	45,483		$	37,471
Net income per common share—Basic	$	0.94		$	0.79
Net income per common share—Diluted	$	0.90		$	0.76
Cash dividends declared per common share	$	0.12		$	0.11
Weighted average common shares outstanding	48,448			47,239
Dilutive potential common shares	3,820			4,233
Average common shares and dilutive common shares	52,268			51,472

See accompanying notes to unaudited consolidated financial statements.

2

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	Three Months Ended
(In thousands)	March 31, 2016			March 31, 2015
Net income	$	49,111		$	39,052
Unrealized gains on securities
Before tax	25,176			26,276
Tax effect	(9,988		)	(10,331		)
Net of tax	15,188			15,945
Reclassification of net gains included in net income
Before tax	1,325			524
Tax effect	(521		)	(206		)
Net of tax	804			318
Reclassification of amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	(3,425		)	—
Tax effect	1,339			—
Net of tax	(2,086		)	—
Net unrealized gains on securities	16,470			15,627
Unrealized gains (losses) on derivative instruments
Before tax	478			(561		)
Tax effect	(188		)	220
Net unrealized gains (losses) on derivative instruments	290			(341		)
Foreign currency adjustment
Before tax	8,347			(12,290		)
Tax effect	(2,309		)	3,245
Net foreign currency adjustment	6,038			(9,045		)
Total other comprehensive income	22,798			6,241
Comprehensive income	$	71,909		$	45,293

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 January 1, 2015	$	126,467		$	46,881	$	1,133,955	$	(3,549	)	$	803,400		$	(37,332	)	$	2,069,822
Net income	—			—		—		—			39,052			—			39,052
Other comprehensive income, net of tax	—			—		—		—			—			6,241			6,241
Cash dividends declared on common stock	—			—		—		—			(5,202		)	—			(5,202		)
Dividends on preferred stock	—			—		—		—			(1,581		)	—			(1,581		)
Stock-based compensation	—			—		2,271		—			—			—			2,271
Conversion of Series C preferred stock to common stock	(40		)	1		39		—			—			—			—
Common stock issued for:
Acquisitions	—			422		18,582		—			—			—			19,004
Exercise of stock options and warrants	—			52		535		(130		)	—			—			457
Restricted stock awards	—			84		329		(269		)	—			—			144
Employee stock purchase plan	—			15		666		—			—			—			681
Director compensation plan	—			20		165		—			—			—			185
Balance at March 31, 2015	$	126,427		$	47,475	$	1,156,542	$	(3,948	)	$	835,669		$	(31,091	)	$	2,131,074
Balance at January 1, 2016	$	251,287		$	48,469	$	1,190,988	$	(3,973	)	$	928,211		$	(62,708	)	$	2,352,274
Net income	—			—		—		—			49,111			—			49,111
Other comprehensive income, net of tax	—			—		—		—			—			22,798			22,798
Cash dividends declared on common stock	—			—		—		—			(5,812		)	—			(5,812		)
Dividends on preferred stock	—			—		—		—			(3,628		)	—			(3,628		)
Stock-based compensation	—			—		2,484		—			—			—			2,484
Conversion of Series C preferred stock to common stock	(30		)	1		29		—			—			—			—
Common stock issued for:
Exercise of stock options and warrants	—			17		124		—			—			—			141
Restricted stock awards	—			82		106		(172		)	—			—			16
Employee stock purchase plan	—			14		634		—			—			—			648
Director compensation plan	—			25		385		—			—			—			410
Balance at March 31, 2016	$	251,257		$	48,608	$	1,194,750	$	(4,145	)	$	967,882		$	(39,910	)	$	2,418,442

See accompanying notes to unaudited consolidated financial statements.

4

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Three Months Ended
(In thousands)	March 31, 2016			March 31, 2015
Operating Activities:
Net income	$	49,111		$	39,052
Adjustments to reconcile net income to net cash provided by (used for) operating activities
Provision for credit losses	8,034			6,079
Depreciation, amortization and accretion, net	13,610			9,077
Stock-based compensation expense	2,484			2,271
Excess tax benefits from stock-based compensation arrangements	(193		)	(471		)
Net amortization of premium on securities	632			845
Accretion of discount on loans	(8,276		)	(7,583		)
Mortgage servicing rights fair value change, net	(1,036		)	514
Originations and purchases of mortgage loans held-for-sale	(736,648		)	(941,651		)
Proceeds from sales of mortgage loans held-for-sale	826,419			867,194
Bank owned life insurance, net of claims	(472		)	(766		)
Increase in trading securities, net	(1,668		)	(6,605		)
Net increase in brokerage customer receivables	(635		)	(1,066		)
Gains on mortgage loans sold	(16,287		)	(20,608		)
Gains on available-for-sale securities, net	(1,325		)	(524		)
Gains on early extinguishment of debt	(4,305		)	—
Losses on sales of premises and equipment, net	21			81
Net gains on sales and fair value adjustments of other real estate owned	(119		)	(549		)
Increase in accrued interest receivable and other assets, net	(75,172		)	(20,964		)
Increase (decrease) in accrued interest payable and other liabilities, net	12,187			(48,874		)
Net Cash Provided by (Used for) Operating Activities	66,362			(124,548		)
Investing Activities:
Proceeds from maturities of available-for-sale securities	26,128			122,163
Proceeds from maturities of held-to-maturity securities	181			—
Proceeds from sales of available-for-sale securities	3,201			635,532
Proceeds from calls of held-to-maturity securities	98,243			—
Purchases of available-for-sale securities	(39,267		)	(629,008		)
Purchases of held-to-maturity securities	(125,208		)	—
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock, net	(11,641		)	(1,366		)
Net cash (paid) received for acquisitions	(17,452		)	12,004
Proceeds from sales of other real estate owned	10,341			11,733
Proceeds received from (payments provided to) the FDIC related to reimbursements on covered assets	363			(2,056		)
Net (increase) decrease in interest bearing deposits with banks	(204,994		)	300,706
Net increase in loans	(248,893		)	(399,939		)
Purchases of premises and equipment, net	(8,677		)	(5,902		)
Net Cash (Used for) Provided by Investing Activities	(517,675		)	43,867
Financing Activities:
Increase in deposit accounts	477,466			486,960
Decrease in other borrowings, net	(12,700		)	(20,327		)
Decrease in Federal Home Loan Bank advances, net	(58,466		)	(321,565		)
Redemption of junior subordinated debentures, net	(10,695		)	—
Excess tax benefits from stock-based compensation arrangements	193			471
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	1,632			2,489
Common stock repurchases	(172		)	(399		)
Dividends paid	(9,440		)	(6,783		)
Net Cash Provided by Financing Activities	387,818			140,846
Net (Decrease) Increase in Cash and Cash Equivalents	(63,495		)	60,165
Cash and Cash Equivalents at Beginning of Period	275,795			230,707
Cash and Cash Equivalents at End of Period	$	212,300		$	290,872

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, 2015 (“2015 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 the Company's significant accounting policies are included in Note 1 - “Summary of Significant Accounting Policies” of the 2015 Form 10-K.

(2) Recent Accounting Developments

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.

In March 2016, the FASB issued ASU No. 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)", to clarify the implementation guidance within ASU No. 2014-09 surrounding principal versus agent considerations and its impact on revenue recognition. Additionally, in April 2016, the FASB issued ASU No. 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing", to also clarify the implementation guidance within ASU No. 2014-09 related to these two topics. Like ASU No. 2014-09, this guidance is 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

6

extraordinary items related to separately classifying, presenting and disclosing certain events and transactions that meet the criteria for that concept. This guidance was effective for fiscal years beginning after December 15, 2015 and did not 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 was effective for fiscal years beginning after December 15, 2015 and did not have a material impact on the Company's 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. Additionally, in August 2015, the FASB issued ASU No. 2015-15, "Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements (Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting," to further clarify the presentation of debt issuance costs related to line-of-credit agreements. This ASU states the SEC would not object to an entity deferring and presenting debt issuance costs related to line-of-credit agreements as an asset on the balance sheet and subsequently amortizing these costs ratably over the term of the agreement, regardless of any outstanding borrowing under the line-of-credit agreement. This guidance was effective for fiscal years beginning after December 15, 2015 and was applied retrospectively within the Company’s consolidated financial statements. For December 31, 2015 and March 31, 2015, the Company reclassified as a direct reduction to the related debt balance $7.8 million and $10.7 million, respectively, of debt issuance costs that were previously presented as accrued interest receivable and other assets on the Consolidated Statements of Condition.

Business Combinations

In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments," to simplify the accounting for subsequent adjustments made to provisional amounts recognized at the acquisition date of a business combination. This ASU eliminates the requirement to retrospectively account for these adjustment for all prior periods impacted. The acquirer is required to recognize these adjustments identified during the measurement period in the reporting period in which the adjustment amount is determined. Additionally, the ASU requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings that would have been recorded in previous reporting periods if the adjustment had been recognized at the acquisition date. This guidance was effective for fiscal years beginning after December 15, 2015 and did not have a material impact on the Company’s consolidated financial statements.

Financial Instruments

In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," to improve the accounting for financial instruments. This ASU requires    equity investments with readily determinable fair values to be measured at fair value with changes recognized in net income regardless of classification. For equity investments without a readily determinable fair value, the value of the investment would be measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer instead of fair value, unless a qualitative assessment indicates impairment. Additionally, this ASU requires the separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements. This guidance is effective for fiscal years beginning after December 15, 2017 and is to be applied prospectively with a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Leases

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)," to improve transparency and comparability across entities regarding leasing arrangements. This ASU requires the recognition of a separate lease liability representing the required lease payments over the lease term and a separate lease asset representing the right to use the underlying asset during the same

7

lease term. Additionally, this ASU provides clarification regarding the identification of certain components of contracts that would represent a lease as well as requires additional disclosures to the notes of the financial statements. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach, including the option to apply certain practical expedients. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Derivatives

In March 2016, the FASB issued ASU No. 2016-05, "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships," to clarify guidance surrounding the effect on an existing hedging relationship of a change in the counterparty to a derivative instrument that has been designated as a hedging instrument. This ASU states that a change in counterparty to such derivative instrument does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied either under a prospective or a modified retrospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Equity Method Investments

In March 2016, the FASB issued ASU No. 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting," to simplify the accounting for investments qualifying for the use of the equity method of accounting. This ASU eliminates the requirement to retroactively adopt the equity method of accounting when an investment qualifies for such method as a result of an increase in the level of ownership interest or degree of influence. The ASU requires the equity method investor add the cost of acquiring the additional interest to the current basis and adopt the equity method of accounting as of that date going forward. Additionally, for available-for-sale equity securities that become qualified for equity method accounting, the ASU requires the related unrealized holding gains or losses included in accumulated other comprehensive income be recognized in earnings at the date the investment qualifies for such accounting. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied under a prospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Employee Share-Based Compensation

In March 2016, the FASB issued ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," to simplify the accounting for several areas of share-based payment transactions. This includes the recognition of all excess tax benefits and tax deficiencies as income tax expense instead of surplus, the classification on the statement of cash flows of excess tax benefits and taxes paid when the employer withholds shares for tax-withholding purposes. Additionally, related to forfeitures, the ASU provides the option to estimate the number of awards that are expected to vest or account for forfeitures as they occur. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied under a modified retrospective and retrospective approach based upon the specific amendment of the ASU. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

(3) Business Combinations

Non-FDIC Assisted Bank Acquisitions

On March 31, 2016, the Company acquired Generations Bancorp, Inc ("Generations"). Generations was the parent company of Foundations Bank, which had one banking location in Pewaukee, Wisconsin. Foundations Bank was merged into the Company's wholly-owned subsidiary Town Bank. The Company acquired assets with a fair value of approximately $134.2 million, including approximately $67.5 million of loans, and assumed deposits with a fair value of approximately $100.1 million. Additionally, the Company recorded goodwill of $11.3 million on the acquisition. Certain purchase price allocations for Generations are preliminary. The final determination of the amounts is not expected to result in material changes to recorded amounts.

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. CBWGE was merged into the Company's wholly-owned subsidiary Wheaton Bank & Trust Company ("Wheaton Bank"). The Company acquired assets with a fair value of approximately $350.5 million, including approximately $159.5 million of loans, and assumed deposits with a fair value of approximately $290.0 million. Additionally, the Company recorded goodwill of $27.6 million on the acquisition.

8

On July 17, 2015, the Company acquired Suburban Illinois Bancorp, Inc. ("Suburban"). Suburban was the parent company of Suburban Bank & Trust Company ("SBT"), which operated ten banking locations. SBT was merged into the Company's wholly-owned subsidiary Hinsdale Bank & Trust Company ("Hinsdale Bank"). The Company acquired assets with a fair value of approximately $494.7 million, including approximately $257.8 million of loans, and assumed deposits with a fair value of approximately $416.7 million. Additionally, the Company recorded goodwill of $18.6 million on the acquisition.

On July 1, 2015, the Company, through its wholly-owned subsidiary Wintrust Bank, acquired North Bank, which had two banking locations. The Company acquired assets with a fair value of $117.9 million, including approximately $51.6 million of loans, and assumed deposits with a fair value of approximately $101.0 million. Additionally, the Company recorded goodwill of $6.7 million on the acquisition.

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 $16.8 million on the acquisition.

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 and require the Company to record loss share assets and liabilities that 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 and liabilities are recorded as FDIC indemnification assets and other liabilities, respectively, 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 and, if necessary, increase any loss share liability when necessary reductions exceed the current value of 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. On the Consolidated Statements of Condition, estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset or, if necessary, an increase to the loss share liability, which is included within accrued interest payable and other liabilities. Although these assets are contractual receivables from the FDIC and these liabilities are contractual payables to 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.

9

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

	Three Months Ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Balance at beginning of period	$	(6,100	)	$	11,846
Additions from acquisitions	—			—
Additions from reimbursable expenses	82			1,575
Amortization	(101		)	(1,260		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(3,547		)	(3,993		)
(Payments received from) provided to the FDIC	(363		)	2,056
Balance at end of period	$	(10,029	)	$	10,224

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 additional 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.

10

(5) Investment Securities

The following tables are a summary of the available-for-sale and held-to-maturity securities portfolios as of the dates shown:

	March 31, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	117,105	$	22	$	(38	)	$	117,089
U.S. Government agencies	93,990		194		(12		)	94,172
Municipal	118,187		3,232		(224		)	121,195
Corporate notes:
Financial issuers	78,048		1,492		(1,830		)	77,710
Other	2,500		3		—			2,503
Mortgage-backed: (1)
Mortgage-backed securities	262,109		3,795		(1,900		)	264,004
Collateralized mortgage obligations	38,565		324		(198		)	38,691
Equity securities	51,402		4,585		(368		)	55,619
Total available-for-sale securities	$	761,906	$	13,647	$	(4,570	)	$	770,983
Held-to-maturity securities
U.S. Government agencies	$	712,732	$	11,569	$	(1,455	)	$	722,846
Municipal	198,983		2,672		(157		)	201,498
Total held-to-maturity securities	$	911,715	$	14,241	$	(1,612	)	$	924,344

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	312,282	$	—	$	(5,553	)	$	306,729
U.S. Government agencies	70,313		198		(275		)	70,236
Municipal	105,702		3,249		(356		)	108,595
Corporate notes:
Financial issuers	80,014		1,510		(1,481		)	80,043
Other	1,500		4		(2		)	1,502
Mortgage-backed: (1)
Mortgage-backed securities	1,069,680		3,834		(21,004		)	1,052,510
Collateralized mortgage obligations	40,421		172		(506		)	40,087
Equity securities	51,380		5,799		(493		)	56,686
Total available-for-sale securities	$	1,731,292	$	14,766	$	(29,670	)	$	1,716,388
Held-to-maturity securities
U.S. Government agencies	$	687,302	$	4	$	(7,144	)	$	680,162
Municipal	197,524		867		(442		)	197,949
Total held-to-maturity securities	$	884,826	$	871	$	(7,586	)	$	878,111

	March 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	273,173	$	148	$	(1,847	)	$	271,474
U.S. Government agencies	665,177		5,348		(8,732		)	661,793
Municipal	264,949		6,485		(1,522		)	269,912
Corporate notes:
Financial issuers	129,360		1,965		(1,321		)	130,004
Other	3,759		52		(1		)	3,810
Mortgage-backed: (1)
Mortgage-backed securities	280,679		5,983		(2,529		)	284,133
Collateralized mortgage obligations	45,299		435		(276		)	45,458
Equity securities	48,717		5,979		(250		)	54,446
Total available-for-sale securities	$	1,711,113	$	26,395	$	(16,478	)	$	1,721,030
Held-to-maturity securities
U.S. Government agencies	$	—	$	—	$	—		$	—
Municipal	—		—		—			—
Total held-to-maturity securities	$	—	$	—	$	—		$	—

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

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In the fourth quarter of 2015, the Company transferred $862.7 million of investment securities with an unrealized loss of $14.4 million from the available-for-sale classification to the held-to-maturity classification. No investment securities were transferred from the available-for-sale classification to the held-to-maturity classification in the first quarter of 2016.

The following table presents the portion of the Company’s available-for-sale and held-to-maturity securities portfolios which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016:

	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
Available-for-sale securities
U.S. Treasury	$	75,049	$	(38	)	$	—	$	—		$	75,049	$	(38	)
U.S. Government agencies	13,982		(10		)	1,833		(2		)	15,815		(12		)
Municipal	18,399		(40		)	6,977		(184		)	25,376		(224		)
Corporate notes:
Financial issuers	22,952		(237		)	34,367		(1,593		)	57,319		(1,830		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	2,038		(3		)	122,371		(1,897		)	124,409		(1,900		)
Collateralized mortgage obligations	4,880		(42		)	7,803		(156		)	12,683		(198		)
Equity securities	3,964		(55		)	8,599		(313		)	12,563		(368		)
Total available-for-sale securities	$	141,264	$	(425	)	$	181,950	$	(4,145	)	$	323,214	$	(4,570	)
Held-to-maturity securities
U.S. Government agencies	$	208,405	$	(1,455	)	$	—	$	—		$	208,405	$	(1,455	)
Municipal	15,919		(125		)	4,917		(32		)	20,836		(157		)
Total held-to-maturity securities	$	224,324	$	(1,580	)	$	4,917	$	(32	)	$	229,241	$	(1,612	)

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 March 31, 2016 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 corporate notes and mortgage-backed securities. Unrealized losses recognized on corporate notes and mortgage-backed securities are the result of increases in yields for similar types of securities.

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 March 31,
(Dollars in thousands)	2016			2015
Realized gains	$	2,550		$	553
Realized losses	(1,225		)	(29		)
Net realized gains	$	1,325		$	524
Other than temporary impairment charges	—			—
Gains on available-for-sale securities, net	$	1,325		$	524
Proceeds from sales of available-for-sale securities	$	3,201		$	635,532

12

The amortized cost and fair value of securities as of March 31, 2016, December 31, 2015 and March 31, 2015, 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:

	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	208,518	$	208,641	$	160,856	$	160,756	$	151,585	$	151,854
Due in one to five years	158,668		158,804		166,550		166,468		249,861		250,483
Due in five to ten years	28,970		31,363		228,652		225,699		837,926		836,598
Due after ten years	13,674		13,861		13,753		14,182		97,046		98,058
Mortgage-backed	300,674		302,695		1,110,101		1,092,597		325,978		329,591
Equity securities	51,402		55,619		51,380		56,686		48,717		54,446
Total available-for-sale securities	$	761,906	$	770,983	$	1,731,292	$	1,716,388	$	1,711,113	$	1,721,030
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	24,319		24,448		19,208		19,156		—		—
Due in five to ten years	65,879		66,432		96,454		96,091		—		—
Due after ten years	821,517		833,464		769,164		762,864		—		—
Total held-to-maturity securities	$	911,715	$	924,344	$	884,826	$	878,111	$	—	$	—

Securities having a fair value of $1.2 billion at March 31, 2016 as well as securities having a carrying value of $1.2 billion and $1.1 billion at December 31, 2015 and March 31, 2015, respectively, were pledged as collateral for public deposits, trust deposits, FHLB advances, securities sold under repurchase agreements and derivatives. At March 31, 2016, there were no securities of a single issuer, other than U.S. Government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

13

(6) Loans

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

	March 31,			December 31,			March 31,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	4,890,246		$	4,713,909		$	4,211,932
Commercial real estate	5,737,959			5,529,289			4,710,486
Home equity	774,342			784,675			709,283
Residential real estate	626,043			607,451			495,925
Premium finance receivables—commercial	2,320,987			2,374,921			2,319,623
Premium finance receivables—life insurance	2,976,934			2,961,496			2,375,654
Consumer and other	119,902			146,376			130,156
Total loans, net of unearned income, excluding covered loans	$	17,446,413		$	17,118,117		$	14,953,059
Covered loans	138,848			148,673			209,694
Total loans	$	17,585,261		$	17,266,790		$	15,162,753
Mix:
Commercial	28		%	27		%	28		%
Commercial real estate	32			32			31
Home equity	4			5			5
Residential real estate	4			3			3
Premium finance receivables—commercial	13			14			15
Premium finance receivables—life insurance	17			17			16
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	99		%	99		%
Covered loans	1			1			1
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 $56.9 million at March 31, 2016, $56.7 million at December 31, 2015 and $48.1 million at March 31, 2015, 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 $(8.9) million at March 31, 2016, $(9.2) million at December 31, 2015 and $(3.7) million at March 31, 2015. The net credit balance at these dates, is primarily the result of purchase accounting adjustments related to acquisitions in 2016 and 2015.

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.

14

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:

	March 31, 2016				December 31, 2015
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	331,354	$	276,012	$	326,470	$	271,260
Life insurance premium finance loans acquisition	299,915		296,138		372,738		368,292

The following table provides estimated details as of the date of acquisition on loans acquired in 2016 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Foundations
Contractually required payments including interest	$	19,350
Less: Nonaccretable difference	3,640
Cash flows expected to be collected (1)	$	15,710
Less: Accretable yield	1,141
Fair value of PCI loans acquired	$	14,569

(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 March 31, 2016.

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
(Dollars in thousands)	March 31, 2016			March 31, 2015
Accretable yield, beginning balance	$	63,902		$	79,102
Acquisitions	1,141			898
Accretable yield amortized to interest income	(5,457		)	(6,105		)
Accretable yield amortized to indemnification asset (1)	(2,171		)	(3,576		)
Reclassification from non-accretable difference (2)	4,193			1,103
Decreases in interest cash flows due to payments and changes in interest rates	(2,390		)	(1,224		)
Accretable yield, ending balance (3)	$	59,218		$	70,198

(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 March 31, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $4.8 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income accounted for under ASC 310-30 totaled $5.5 million and $6.1 million in the first quarter of 2016 and 2015, respectively. These amounts include accretion from both covered and non-covered loans, and are both included within interest and fees on loans in the Consolidated Statements of Income.

15

(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 March 31, 2016, December 31, 2015 and March 31, 2015:

As of March 31, 2016			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, industrial and other	$	12,370	$	338	$	3,228	$	25,608	$	3,363,011	$	3,404,555
Franchise	—		—		—		1,400		273,158		274,558
Mortgage warehouse lines of credit	—		—		—		1,491		192,244		193,735
Asset-based lending	3		—		117		10,597		737,184		747,901
Leases	—		—		—		5,177		244,241		249,418
PCI - commercial (1)	—		1,893		—		128		18,058		20,079
Total commercial	12,373		2,231		3,345		44,401		4,827,896		4,890,246
Commercial real estate:
Construction	273		—		—		2,023		389,026		391,322
Land	1,746		—		—		—		93,834		95,580
Office	7,729		1,260		980		12,571		865,954		888,494
Industrial	10,960		—		—		3,935		728,061		742,956
Retail	1,633		—		2,397		2,657		890,780		897,467
Multi-family	287		—		655		2,047		760,084		763,073
Mixed use and other	4,368		—		187		12,312		1,778,850		1,795,717
PCI - commercial real estate (1)	—		24,738		1,573		10,344		126,695		163,350
Total commercial real estate	26,996		25,998		5,792		45,889		5,633,284		5,737,959
Home equity	9,365		—		791		4,474		759,712		774,342
Residential real estate, including PCI	11,964		406		193		10,108		603,372		626,043
Premium finance receivables
Commercial insurance loans	15,350		9,548		5,583		15,086		2,275,420		2,320,987
Life insurance loans	—		1,641		3,432		198		2,675,525		2,680,796
PCI - life insurance loans (1)	—		—		—		—		296,138		296,138
Consumer and other, including PCI	484		245		118		364		118,691		119,902
Total loans, net of unearned income, excluding covered loans	$	76,532	$	40,069	$	19,254	$	120,520	$	17,190,038	$	17,446,413
Covered loans	5,324		7,995		349		6,491		118,689		138,848
Total loans, net of unearned income	$	81,856	$	48,064	$	19,603	$	127,011	$	17,308,727	$	17,585,261

As of December 31, 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, industrial and other	$	12,704	$	6	$	6,749	$	12,930	$	3,226,139	$	3,258,528
Franchise	—		—		—		—		245,228		245,228
Mortgage warehouse lines of credit	—		—		—		—		222,806		222,806
Asset-based lending	8		—		3,864		1,844		736,968		742,684
Leases	—		535		748		4,192		220,599		226,074
PCI - commercial (1)	—		892		—		2,510		15,187		18,589
Total commercial	12,712		1,433		11,361		21,476		4,666,927		4,713,909
Commercial real estate
Construction	306		—		1,371		1,645		355,338		358,660
Land	1,751		—		—		120		76,546		78,417
Office	4,619		—		764		3,817		853,801		863,001
Industrial	9,564		—		1,868		1,009		715,207		727,648
Retail	1,760		—		442		2,310		863,887		868,399
Multi-family	1,954		—		597		6,568		733,230		742,349
Mixed use and other	6,691		—		6,723		7,215		1,712,187		1,732,816
PCI - commercial real estate (1)	—		22,111		4,662		16,559		114,667		157,999
Total commercial real estate	26,645		22,111		16,427		39,243		5,424,863		5,529,289
Home equity	6,848		—		1,889		5,517		770,421		784,675
Residential real estate, including PCI	12,043		488		2,166		3,903		588,851		607,451
Premium finance receivables
Commercial insurance loans	14,561		10,294		6,624		21,656		2,321,786		2,374,921
Life insurance loans	—		—		3,432		11,140		2,578,632		2,593,204
PCI - life insurance loans (1)	—		—		—		—		368,292		368,292
Consumer and other, including PCI	263		211		204		1,187		144,511		146,376
Total loans, net of unearned income, excluding covered loans	$	73,072	$	34,537	$	42,103	$	104,122	$	16,864,283	$	17,118,117
Covered loans	5,878		7,335		703		5,774		128,983		148,673
Total loans, net of unearned income	$	78,950	$	41,872	$	42,806	$	109,896	$	16,993,266	$	17,266,790

(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 March 31, 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, industrial and other	$	5,586	$	—	$	5,047	$	17,338	$	2,779,781	$	2,807,752
Franchise	—		—		—		457		225,305		225,762
Mortgage warehouse lines of credit	—		—		—		—		186,372		186,372
Asset-based lending	—		—		—		4,819		805,866		810,685
Leases	—		—		65		517		171,432		172,014
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:
Construction	—		—		—		992		255,835		256,827
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, including PCI	14,248		266		753		8,819		471,839		495,925
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, including PCI	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.

The Company's 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.

17

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 and covered 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 March 31, 2016, December 31, 2015 and March 31, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,391,847	$	3,245,818	$	2,802,166	$	12,708	$	12,710	$	5,586	$	3,404,555	$	3,258,528	$	2,807,752
Franchise	274,558		245,228		225,762		—		—		—		274,558		245,228		225,762
Mortgage warehouse lines of credit	193,735		222,806		186,372		—		—		—		193,735		222,806		186,372
Asset-based lending	747,898		742,676		810,685		3		8		—		747,901		742,684		810,685
Leases	249,418		225,539		172,014		—		535		—		249,418		226,074		172,014
PCI - commercial (1)	20,079		18,589		9,347		—		—		—		20,079		18,589		9,347
Total commercial	4,877,535		4,700,656		4,206,346		12,711		13,253		5,586		4,890,246		4,713,909		4,211,932
Commercial real estate
Construction	391,049		358,354		256,827		273		306		—		391,322		358,660		256,827
Land	93,834		76,666		86,396		1,746		1,751		2,646		95,580		78,417		89,042
Office	879,505		858,382		734,883		8,989		4,619		8,243		888,494		863,001		743,126
Industrial	731,996		718,084		600,830		10,960		9,564		3,496		742,956		727,648		604,326
Retail	895,834		866,639		737,552		1,633		1,760		4,975		897,467		868,399		742,527
Multi-family	762,786		740,395		653,653		287		1,954		1,750		763,073		742,349		655,403
Mixed use and other	1,791,349		1,726,125		1,543,691		4,368		6,691		8,872		1,795,717		1,732,816		1,552,563
PCI - commercial real estate(1)	163,350		157,999		66,672		—		—		—		163,350		157,999		66,672
Total commercial real estate	5,709,703		5,502,644		4,680,504		28,256		26,645		29,982		5,737,959		5,529,289		4,710,486
Home equity	764,977		777,827		701,618		9,365		6,848		7,665		774,342		784,675		709,283
Residential real estate, including PCI	614,079		595,408		481,677		11,964		12,043		14,248		626,043		607,451		495,925
Premium finance receivables
Commercial insurance loans	2,296,089		2,350,066		2,295,659		24,898		24,855		23,964		2,320,987		2,374,921		2,319,623
Life insurance loans	2,679,155		2,593,204		1,986,606		1,641		—		—		2,680,796		2,593,204		1,986,606
PCI - life insurance loans (1)	296,138		368,292		389,048		—		—		—		296,138		368,292		389,048
Consumer and other, including PCI	119,238		145,963		129,829		664		413		327		119,902		146,376		130,156
Total loans, net of unearned income, excluding covered loans	$	17,356,914	$	17,034,060	$	14,871,287	$	89,499	$	84,057	$	81,772	$	17,446,413	$	17,118,117	$	14,953,059

(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.

18

A summary of activity in the allowance for credit losses by loan portfolio (excluding covered loans) for the three months ended March 31, 2016 and 2015 is as follows:

Three months ended March 31, 2016				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	$	36,135		$	43,758		$	12,012		$	4,734		$	7,233		$	1,528		$	105,400
Other adjustments	(9		)	(76		)	—			(30		)	37			—			(78		)
Reclassification from allowance for unfunded lending-related commitments	—			(81		)	—			—			—			—			(81		)
Charge-offs	(671		)	(671		)	(1,052		)	(493		)	(2,480		)	(107		)	(5,474		)
Recoveries	629			369			48			112			787			36			1,981
Provision for credit losses	2,351			1,964			1,907			841			1,628			(268		)	8,423
Allowance for loan losses at period end	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Allowance for unfunded lending-related commitments at period end	$	—		$	1,030		$	—		$	—		$	—		$	—		$	1,030
Allowance for credit losses at period end	$	38,435		$	46,293		$	12,915		$	5,164		$	7,205		$	1,189		$	111,201
Individually evaluated for impairment	$	2,319		$	3,028		$	1,695		$	700		$	—		$	70		$	7,812
Collectively evaluated for impairment	35,448			43,261			11,220			4,384			7,205			1,119			102,637
Loans acquired with deteriorated credit quality	668			4			—			80			—			—			752
Loans at period end
Individually evaluated for impairment	$	17,969		$	52,977		$	9,365		$	16,159		$	—		$	527		$	96,997
Collectively evaluated for impairment	4,852,198			5,521,632			764,977			606,503			5,001,783			119,375			16,866,468
Loans acquired with deteriorated credit quality	20,079			163,350			—			3,381			296,138			—			482,948

Three months ended March 31, 2015	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	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(17		)	(180		)	—			(3		)	(48		)	—			(248		)
Reclassification from allowance for unfunded lending-related commitments	—			(113		)	—			—			—			—			(113		)
Charge-offs	(677		)	(1,005		)	(584		)	(631		)	(1,263		)	(111		)	(4,271		)
Recoveries	370			312			48			76			329			53			1,188
Provision for credit losses	2,351			2,455			700			436			461			(218		)	6,185
Allowance for loan losses at period end	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Allowance for unfunded lending-related commitments at period end	$	—		$	888		$	—		$	—		$	—		$	—		$	888
Allowance for credit losses at period end	$	33,726		$	37,890		$	12,664		$	4,096		$	5,992		$	966		$	95,334
Individually evaluated for impairment	$	1,814		$	3,256		$	948		$	208		$	—		$	26		$	6,252
Collectively evaluated for impairment	31,912			34,521			11,716			3,794			5,992			940			88,875
Loans acquired with deteriorated credit quality	—			113			—			94			—			—			207
Loans at period end
Individually evaluated for impairment	$	12,361		$	75,886		$	7,879		$	17,144		$	—		$	381		$	113,651
Collectively evaluated for impairment	4,190,224			4,567,928			701,404			476,418			4,306,229			129,775			14,371,978
Loans acquired with deteriorated credit quality	9,347			66,672			—			2,363			389,048			—			467,430

19

A summary of activity in the allowance for covered loan losses for the three months ended March 31, 2016 and 2015 is as follows:

	Three Months Ended
	March 31,			March 31,
(Dollars in thousands)	2016			2015
Balance at beginning of period	$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,946		)	(529		)
Benefit attributable to FDIC loss share agreements	1,557			423
Net provision for covered loan losses	(389		)	(106		)
Decrease in FDIC indemnification asset	(1,557		)	(423		)
Loans charged-off	(230		)	(237		)
Recoveries of loans charged-off	1,657			513
Net recoveries (charge-offs)	1,427			276
Balance at end of period	$	2,507		$	1,878

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 loss share asset or reduce any FDIC loss share liability. 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 loss share asset or increase any FDIC loss share liability. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC loss share asset or reduction to any FDIC loss share liability. 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:

	March 31,		December 31,		March 31,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,710	$	49,961	$	48,610
Impaired loans with no allowance for loan loss required	45,400		51,294		63,794
Total impaired loans (2)	$	96,110	$	101,255	$	112,404
Allowance for loan losses related to impaired loans	$	7,775	$	6,380	$	6,199
TDRs	$	52,555	$	51,853	$	67,218

(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.

20

The following tables present impaired loans by loan class, excluding covered loans, for the periods ended as follows:

							For the Three Months Ended
	As of March 31, 2016						March 31, 2016
	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, industrial and other	$	9,711	$	12,905	$	2,309	$	9,527	$	207
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	5,577		9,358		49		5,583		142
Office	3,688		4,688		363		3,701		57
Industrial	8,325		9,065		1,872		8,382		115
Retail	7,757		7,775		296		7,785		83
Multi-family	1,477		1,477		128		1,050		11
Mixed use and other	4,753		4,900		293		4,761		58
Home equity	3,508		3,559		1,695		3,508		25
Residential real estate	5,726		5,957		700		5,743		61
Consumer and other	188		215		70		190		3
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	7,802	$	8,591	$	—	$	8,090	$	116
Asset-based lending	3		1,567		—		5		22
Commercial real estate
Construction	2,296		2,296		—		2,296		28
Land	2,112		2,852		—		2,116		28
Office	7,172		8,548		—		7,323		110
Industrial	3,692		3,910		—		3,686		67
Retail	1,800		2,499		—		1,806		25
Multi-family	92		175		—		148		2
Mixed use and other	3,802		4,377		—		3,886		58
Home equity	5,857		6,974		—		5,962		92
Residential real estate	10,433		12,692		—		10,481		148
Consumer and other	339		413		—		340		5
Total impaired loans, net of unearned income	$	96,110	$	114,793	$	7,775	$	96,369	$	1,463

							For the Twelve Months Ended
	As of December 31, 2015						December 31, 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, industrial and other	$	9,754	$	12,498	$	2,012	$	10,123	$	792
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,929		8,711		41		5,127		547
Office	5,050		6,051		632		5,394		314
Industrial	8,413		9,105		1,943		10,590		565
Retail	8,527		9,230		343		8,596		386
Multi-family	370		370		202		372		25
Mixed use and other	7,590		7,708		570		7,681		328
Home equity	423		435		333		351		16
Residential real estate	4,710		4,799		294		4,618		182
Consumer and other	195		220		10		216		12
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,562	$	9,915	$	—	$	9,885	$	521
Asset-based lending	8		1,570		—		5		88
Commercial real estate
Construction	2,328		2,329		—		2,316		113
Land	888		2,373		—		929		90
Office	3,500		4,484		—		3,613		237
Industrial	2,217		2,426		—		2,286		188
Retail	2,757		2,925		—		2,897		129
Multi-family	2,344		2,807		—		2,390		117
Mixed use and other	10,510		14,060		—		11,939		624
Home equity	6,424		7,987		—		5,738		288
Residential real estate	11,559		13,979		—		11,903		624
Consumer and other	197		267		—		201		12
Total impaired loans, net of unearned income	$	101,255	$	124,249	$	6,380	$	107,170	$	6,198

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							For the Three Months Ended
	As of March 31, 2015						March 31, 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, industrial and other	$	7,230	$	7,830	$	1,795	$	7,465	$	92
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,475		8,090		29		4,734		127
Office	8,354		11,053		598		8,399		131
Industrial	1,402		1,487		559		1,406		20
Retail	10,259		12,286		371		10,294		128
Multi-family	2,266		2,363		241		2,273		26
Mixed use and other	7,891		10,041		1,449		7,907		116
Home equity	2,807		2,962		948		2,809		29
Residential real estate	3,728		3,934		183		3,724		45
Consumer and other	198		200		26		203		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	4,630	$	7,595	$	—	$	4,647	$	125
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	2,645		2,645		—		2,645		30
Land	5,134		5,868		—		5,137		62
Office	6,890		6,965		—		6,971		77
Industrial	2,772		3,134		—		2,837		55
Retail	5,053		9,130		—		5,315		105
Multi-family	777		1,199		—		778		13
Mixed use and other	17,479		17,723		—		17,688		185
Home equity	5,072		6,771		—		5,126		70
Residential real estate	13,159		14,644		—		13,190		145
Consumer and other	183		249		—		145		3
Total impaired loans, net of unearned income	$	112,404	$	136,169	$	6,199	$	113,693	$	1,588

TDRs

At March 31, 2016, the Company had $52.6 million in loans modified in TDRs. The $52.6 million in TDRs represents 102 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 6 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 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.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless 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,

22

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 March 31, 2016 and approximately $3.1 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 March 31, 2016 and 2015, the Company recorded $90,000 and $193,000, respectively, in interest income representing this decrease 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 March 31, 2016, the Company had $13.3 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 months ended March 31, 2016 and 2015, respectively, which represent TDRs:

Three months ended March 31, 2016 (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, industrial and other	1	$	42	1	$	42	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		—	—		—	—		—	—
Industrial	6	7,921		6	7,921		3	7,196		—	—		—	—
Mixed use and other	2	150		2	150		—	—		—	—		—	—
Residential real estate and other	1	160		—	—		1	160		—	—		—	—
Total loans	11	$	8,723	10	$	8,563	4	$	7,356	—	$	—	—	$	—

Three months ended March 31, 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, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	3	294		3	294		2	80		1	50		—	—
Total loans	3	$	294	3	$	294	2	$	80	1	$	50	—	$	—

(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.

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During the three months ended March 31, 2016, 11 loans totaling $8.7 million were determined to be TDRs, compared to three loans totaling $294,000 in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately three months during the quarter ended March 31, 2016 compared to 17 months for the quarter ended March 31, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 17 basis points and 180 basis points during the three months ending March 31, 2016 and 2015, respectively. Interest-only payment terms were approximately 24 months during the three months ending March 31, 2016. Additionally, no principal balances were forgiven in the first quarters of 2016 and 2015.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended March 31, 2016 and 2015, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of March 31, 2016			Three Months Ended March 31, 2016			As of March 31, 2015		Three Months Ended March 31, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Total (1)(3)		Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance	Count	Balance
Commercial
Commercial, industrial and other	1	$	42	—	$	—	1	1,461	—	$	—
Commercial real estate
Office	1	450		1	450		2	1,510	1	790
Industrial	7	8,090		3	725		1	685	—	—
Multi-family	—	—		—	—		1	181	1	181
Mixed use and other	4	351		3	217		4	1,049	3	816
Residential real estate and other	7	1,530		—	—		9	2,131	2	261
Total loans	20	$	10,463	7	$	1,392	18	7,017	7	$	2,048

(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.

(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, 2016		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			March 31, 2016
Community banking	$	401,612	$	11,305	$	—	$	(195	)	$	412,722
Specialty finance	38,035		—		—		1,409			39,444
Wealth management	32,114		—		—		—			32,114
Total	$	471,761	$	11,305	$	—	$	1,214		$	484,280

The community banking segment's goodwill increased $11.1 million in the first three months of 2016 primarily as a result of the acquisition of Generations. The specialty finance segment's goodwill increased $1.4 million in the first three months of 2016 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

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A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of March 31, 2016 is as follows:

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	35,654		$	34,841		$	25,881
Accumulated amortization	(18,543		)	(17,382		)	(14,192		)
Net carrying amount	$	17,111		$	17,459		$	11,689
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,076		)	(1,052		)	(971		)
Net carrying amount	$	724		$	748		$	829
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,050		)	(1,938		)	(1,600		)
Net carrying amount	$	5,890		$	6,002		$	6,340
Total other intangible assets, net	$	23,725		$	24,209		$	18,858

Estimated amortization
Actual in three months ended March 31, 2016	$	1,298
Estimated remaining in 2016	3,477
Estimated—2017	4,013
Estimated—2018	3,493
Estimated—2019	2,961
Estimated—2020	2,410

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 $1.3 million and $1.0 million for the three months ended March 31, 2016 and 2015, respectively.

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(9) Deposits

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

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Balance:
Non-interest bearing	$	5,205,410		$	4,836,420		$	3,779,609
NOW and interest bearing demand deposits	2,369,474			2,390,217			2,262,928
Wealth management deposits	1,761,710			1,643,653			1,528,963
Money market	4,157,083			4,041,300			3,791,762
Savings	1,766,552			1,723,367			1,563,752
Time certificates of deposit	3,956,842			4,004,677			4,011,755
Total deposits	$	19,217,071		$	18,639,634		$	16,938,769
Mix:
Non-interest bearing	27		%	26		%	22		%
NOW and interest bearing demand deposits	12			13			13
Wealth management deposits	9			9			9
Money market	22			22			23
Savings	9			9			9
Time certificates of deposit	21			21			24
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 Company 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)	March 31, 2016		December 31, 2015		March 31, 2015
Federal Home Loan Bank advances	$	799,482	$	853,431	$	406,839
Other borrowings:
Notes payable	63,683		67,429		—
Short-term borrowings	47,680		63,887		50,076
Other	18,811		18,965		18,538
Secured borrowings	122,952		115,504		118,102
Total other borrowings	253,126		265,785		186,716
Subordinated notes	138,888		138,861		138,782
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	1,191,496	$	1,258,077	$	732,337

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 prepayment fees paid at the time of prior restructurings of FHLB advances and unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

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Notes Payable

At March 31, 2016, notes payable represented a $63.7 million term facility ("Term Facility"), which is part of a $150.0 million loan agreement ("Credit Agreement") with unaffiliated banks dated December 15, 2014. The Credit Agreement consists of the Term Facility with an original outstanding balance of $75.0 million and a $75.0 million revolving credit facility ("Revolving Credit Facility"). At March 31, 2016, the Company had a balance of $63.7 million compared to a $67.4 million balance at December 31, 2015 and no balance at March 31, 2015 under the Term Facility. The Term Facility is stated at par of the current outstanding balance of the debt adjusted for unamortized costs paid by the Company in relation to the debt issuance. 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 was required to make straight-line quarterly amortizing payments on the Term Facility. At March 31, 2016, December 31, 2015 and March 31, 2015, the Company had no outstanding balance under the Revolving Credit Facility. As no outstanding balance exists on the Revolving Credit Facility, unamortized costs paid by the Company in relation to the issuance of this debt are classified in other assets on the Consolidated Statements of Condition. In December 2015, the Company amended the Credit Agreement, effectively extending the maturity date on the Revolving Credit Facility from December 14, 2015 to December 12, 2016.

Borrowings under the Credit 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.

Borrowings under the Credit Agreement 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 March 31, 2016, after giving effect to the limited waiver discussed in Note 17 - Regulatory Matters, 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.

Short-term Borrowings

Short-term borrowings include securities sold under repurchase agreements and federal funds purchased. These borrowings totaled $47.7 million at March 31, 2016 compared to $63.9 million at December 31, 2015 and $50.1 million at March 31, 2015. At March 31, 2016, December 31, 2015 and March 31, 2015, securities sold under repurchase agreements represent $47.7 million, $58.9 million and $50.1 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 March 31, 2016, the Company had pledged securities related to its customer balances in sweep accounts of $60.4 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 and held-to-maturity securities portfolios as reflected on the Company’s Consolidated Statements of Condition.

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The following is a summary of these securities pledged as of March 31, 2016 disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
U.S. Treasury	$	9,992
Corporate notes:
Financial issuers	4,937
Mortgage-backed securities	33,943
Held-to-maturity securities pledged
U.S. Government agencies	11,547
Total collateral pledged	$	60,419
Excess collateral	12,739
Securities sold under repurchase agreements	$	47,680

Other Borrowings

Other borrowings at March 31, 2016 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, and non-recourse notes issued by the Company to other banks related to certain capital leases. At March 31, 2016, the Fixed-Rate Promissory Note had a balance of $18.1 million compared to a balance of $18.3 million and $18.5 million at December 31, 2015 and March 31, 2015, 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. At March 31, 2016 and December 31, 2015, the non-recourse notes related to certain capital leases totaled $662,000 and $732,000, respectively.

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 Receivables Purchase Agreement was amended in December 2015, effectively extending the maturity date from December 15, 2015 to December 15, 2017. Additionally, at that time, the unrelated third party paid an additional C$10 million, which increased the total payments to C$160 million. These transactions were not considered sales of receivables and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party, net of unamortized debt issuance costs, and translated to the Company’s reporting currency as of the respective date. At March 31, 2016, the translated balance of the secured borrowing totaled $123.0 million compared to $115.5 million at December 31, 2015 and $118.1 million at March 31, 2015. Additionally, the interest rate under the Receivables Purchase Agreement at March 31, 2016 was 1.5322%.

Subordinated Notes

At March 31, 2016, the Company had outstanding subordinated notes totaling $138.9 million compared to $138.9 million and $138.8 million outstanding at December 31, 2015 and March 31, 2015, respectively. The notes have a stated interest rate of 5.00% and mature in June 2024. These notes are stated at par adjusted for unamortized costs paid related to the issuance of this debt.

(11) Junior Subordinated Debentures

As of March 31, 2016, the Company owned 100% of the common securities of eleven 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, First Northwest Capital Trust I, Suburban Illinois Capital Trust II, and Community Financial Shares Statutory Trust II (the “Trusts”) set up to provide long-term financing. The Northview, Town, First Northwest, Suburban, and Community Financial Shares capital trusts were acquired as part of the acquisitions of Northview Financial Corporation, Town Bankshares, Ltd., First Northwest Bancorp, Inc., Suburban and CFIS, 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

28

3% of the junior subordinated debentures and the trust preferred securities represent approximately 97% of the junior subordinated debentures.

In January 2016, the Company acquired $15.0 million of the $40.0 million of trust preferred securities issued by Wintrust Capital Trust VIII from a third-party investor. The purchase effectively extinguished $15.0 million of junior subordinated debentures related to Wintrust Capital Trust VIII and resulted in a $4.3 million gain from the early extinguishment of debt.

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 March 31, 2016. 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 3/31/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.87	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.43	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.23	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.58	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.08	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.26	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.63	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.38	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.25	%	06/2007	09/2037	06/2012
Total					$	253,566		2.83	%

The junior subordinated debentures totaled $253.6 million at March 31, 2016 compared to $268.6 million at December 31, 2015 and $249.5 million at March 31, 2015.

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 March 31, 2016, the weighted average contractual interest rate on the junior subordinated debentures was 2.83%. 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 March 31, 2016, was 3.71%. 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. 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 December 31, 2015, $65.1 million and $195.4 million of the junior subordinated debentures, net of common securities, were included in the

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Company's Tier 1 and Tier 2 regulatory capital, respectively. At March 31, 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 in 2016, none of the junior subordinated debentures qualified as Tier 1 regulatory capital of the Company resulting in $245.5 million of the junior subordinated debentures, net of common securities, being included in the Company's Tier 2 regulatory capital.

(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 and leases originated by the specialty finance segment and sold or assigned 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 those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2015 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)	March 31, 2016			March 31, 2015
Net interest income:
Community Banking	$	141,698		$	122,681		$	19,017		16	%
Specialty Finance	21,180			21,046			134			1
Wealth Management	4,483			4,189			294			7
Total Operating Segments	167,361			147,916			19,445			13
Intersegment Eliminations	4,148			3,975			173			4
Consolidated net interest income	$	171,509		$	151,891		$	19,618		13	%
Non-interest income:
Community Banking	$	45,667		$	44,912		$	755		2	%
Specialty Finance	12,403			7,871			4,532			58
Wealth Management	18,752			18,728			24			—
Total Operating Segments	76,822			71,511			5,311			7
Intersegment Eliminations	(8,070		)	(6,970		)	(1,100		)	(16	)
Consolidated non-interest income	$	68,752		$	64,541		$	4,211		7	%
Net revenue:
Community Banking	$	187,365		$	167,593		$	19,772		12	%
Specialty Finance	33,583			28,917			4,666			16
Wealth Management	23,235			22,917			318			1
Total Operating Segments	244,183			219,427			24,756			11
Intersegment Eliminations	(3,922		)	(2,995		)	(927		)	(31	)
Consolidated net revenue	$	240,261		$	216,432		$	23,829		11	%
Segment profit:
Community Banking	$	34,757		$	24,965		$	9,792		39	%
Specialty Finance	11,472			10,952			520			5
Wealth Management	2,882			3,135			(253		)	(8	)
Consolidated net income	$	49,111		$	39,052		$	10,059		26	%
Segment assets:
Community Banking	$	19,575,709		$	17,039,668		$	2,536,041		15	%
Specialty Finance	3,322,807			2,783,958			538,849			19
Wealth Management	589,652			547,940			41,712			8
Consolidated total assets	$	23,488,168		$	20,371,566		$	3,116,602		15	%

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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 March 31, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	March 31, 2016
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	—
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	—
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	15
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	2
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	34
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	30
		$	796,500		$	81

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

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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 March 31, 2016, December 31, 2015 and March 31, 2015:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	64	$	242	$	668	$	586	$	846	$	1,867
Interest rate derivatives designated as Fair Value Hedges	—		27		20		670		143		—
Total derivatives designated as hedging instruments under ASC 815	$	64	$	269	$	688	$	1,256	$	989	$	1,867
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	73,921	$	42,510	$	46,862	$	72,763	$	41,469	$	45,831
Interest rate lock commitments	12,104		7,401		15,296		3,574		171		—
Forward commitments to sell mortgage loans	—		745		—		3,857		2,275		7,410
Foreign exchange contracts	248		373		138		262		115		117
Total derivatives not designated as hedging instruments under ASC 815	$	86,273	$	51,029	$	62,296	$	80,456	$	44,030	$	53,358
Total Derivatives	$	86,337	$	51,298	$	62,984	$	81,712	$	45,019	$	55,225

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 March 31, 2016, 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 three months ended March 31, 2016 or March 31, 2015. 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 March 31, 2016:

	March 31, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	$	50,000	$	(370	)
October 2016	25,000		(216		)
Total Interest Rate Swaps	$	75,000	$	(586	)
Interest Rate Caps:
August 2016	43,500		—
August 2016	216,500		—
September 2017	50,000		34
September 2017	40,000		30
Total Interest Rate Caps	$	350,000	$	64
Total Cash Flow Hedges	$	425,000	$	(522	)

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

	Three months ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Unrealized loss at beginning of period	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	723			414
Amount of loss recognized in other comprehensive income	(245		)	(975		)
Unrealized loss at end of period	$	(3,051	)	$	(4,623	)

As of March 31, 2016, the Company estimates that during the next twelve months, $2.3 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 March 31, 2016, the Company has four interest rate swaps with an aggregate notional amount of $20.8 million that were designated as fair value hedges associated with fixed rate commercial and industrial and 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 loss of $39,000 in other income related to hedge ineffectiveness for the three months ended March 31, 2016 and a $4,000 net loss for the three months ended March 31, 2015.

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 the interest rate cap derivative 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 in the three month periods ended March 31, 2016 and 2015, respectively.

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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 March 31, 2016 and 2015:

(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
		March 31, 2016			March 31, 2015			March 31, 2016		March 31, 2015		March 31, 2016			March 31, 2015
Interest rate swaps	Trading (losses) gains, net	$	(554	)	$	(32	)	$	515	$	28	$	(39	)	$	(4	)

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 March 31, 2016, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $3.7 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 April 2016 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 March 31, 2016, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $982.4 million and interest rate lock commitments with an aggregate notional amount of approximately $623.4 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 to facilitate the respective risk management strategies of certain customer's foreign currency 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. For certain foreign currency contracts with customers, the Company simultaneously executes offsetting derivatives with third parties. These offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. As of March 31, 2016 the Company held foreign currency derivatives with an aggregate notional amount of approximately $21.5 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 as other non-interest income. There were no covered call options outstanding as of March 31, 2016, December 31, 2015 or March 31, 2015.

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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 March 31, 2016, 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
Derivative	Location in income statement	March 31, 2016			March 31, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	76		$	(450	)
Mortgage banking derivatives	Mortgage banking revenue	1,864			2,094
Covered call options	Fees from covered call options	1,712			4,360
Foreign exchange contracts	Trading (losses) gains, net	(63		)	(51		)

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 March 31, 2016 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 $75.6 million. If at March 31, 2016 the Company had breached any of these provisions and the derivative positions were terminated as a result, the Company 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 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)	March 31, 2016			December 31, 2015			March 31, 2015			March 31, 2016			December 31, 2015			March 31, 2015
Gross Amounts Recognized	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(156		)	(753		)	(1,563		)	(156		)	(753		)	(1,563		)
Collateral Posted (1)	—			—			—			(73,863		)	(41,705		)	(46,135		)
Net Credit Exposure	$	73,829		$	42,026		$	45,987		$	—		$	—		$	—

(1) As of March 31, 2016, December 31, 2015 and March 31, 2015, the Company posted collateral of$81.6 million, $45.5 million and $51.3 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

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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 March 31, 2016, the Company classified $70.2 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 first quarter of 2016, 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 March 31, 2016 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 March 31, 2016, the Company held $24.1 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a market spread derived from the market price of the securities underlying debt. At March 31, 2016, the Company considered three different securities whose implied market spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The market spreads ranged from 2.81%-3.13% with an average of 2.98% which was added to three-month LIBOR to be used as the discount rate input to the Company'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 valuation model which calculates the fair value of each servicing rights based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing rights, given current market conditions. At March 31, 2016, the Company classified $10.1 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the mortgage servicing rights at March 31, 2016 was 6.20% with discount rates applied ranging from 4%-7%. 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 1%-46% or a weighted average prepayment speed of 11.39% used as an input to value the mortgage servicing rights at March 31, 2016. 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:

	March 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	117,089	$	—	$	117,089	$	—
U.S. Government agencies	94,172		—		94,172		—
Municipal	121,195		—		50,953		70,242
Corporate notes	80,213		—		80,213		—
Mortgage-backed	302,695		—		302,695		—
Equity securities	55,619		—		31,565		24,054
Trading account securities	2,116		—		2,116		—
Mortgage loans held-for-sale	314,554		—		314,554		—
Mortgage servicing rights	10,128		—		—		10,128
Nonqualified deferred compensation assets	8,926		—		8,926		—
Derivative assets	86,337		—		86,337		—
Total	$	1,193,044	$	—	$	1,088,620	$	104,424
Derivative liabilities	$	81,712	$	—	$	81,712	$	—

	December 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	306,729	$	—	$	306,729	$	—
U.S. Government agencies	70,236		—		70,236		—
Municipal	108,595		—		39,982		68,613
Corporate notes	81,545		—		81,545		—
Mortgage-backed	1,092,597		—		1,092,597		—
Equity securities	56,686		—		31,487		25,199
Trading account securities	448		—		448		—
Mortgage loans held-for-sale	388,038		—		388,038		—
Mortgage servicing rights	9,092		—		—		9,092
Nonqualified deferred compensation assets	8,517		—		8,517		—
Derivative assets	51,298		—		51,298		—
Total	$	2,173,781	$	—	$	2,070,877	$	102,904
Derivative liabilities	$	45,019	$	—	$	45,019	$	—

	March 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	271,474	$	—	$	271,474	$	—
U.S. Government agencies	661,793		—		661,793		—
Municipal	269,912		—		213,863		56,049
Corporate notes	133,814		—		133,814		—
Mortgage-backed	329,591		—		329,591		—
Equity securities	54,446		—		29,790		24,656
Trading account securities	7,811		—		7,811		—
Mortgage loans held-for-sale	446,355		—		446,355		—
Mortgage servicing rights	7,852		—		—		7,852
Nonqualified deferred compensation assets	8,718		—		8,718		—
Derivative assets	62,984		—		62,984		—
Total	$	2,254,750	$	—	$	2,166,193	$	88,557
Derivative liabilities	$	55,225	$	—	$	55,225	$	—

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The aggregate remaining contractual principal balance outstanding as of March 31, 2016, December 31, 2015 and March 31, 2015 for mortgage loans held-for-sale measured at fair value under ASC 825 was $299.0 million, $372.0 million and $421.2 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $314.6 million, $388.0 million and $446.4 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 March 31, 2016, December 31, 2015 and March 31, 2015.

The changes in Level 3 assets measured at fair value on a recurring basis during the three months ended March 31, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	9,092
Total net gains (losses) included in:
Net income (1)	—			—			1,036
Other comprehensive income	(13		)	(1,145		)	—
Purchases	3,271			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(1,629		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at March 31, 2016	$	70,242		$	24,054		$	10,128

				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)	—			—		(583		)
Other comprehensive income	203			945		—
Purchases	6,674			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(9,781		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852

(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 March 31, 2016.

	March 31, 2016								Three Months Ended March 31, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	66,008	$	—	$	—	$	66,008	$	2,333
Other real estate owned, including covered other real estate owned (1)	58,978		—		—		58,978		1,087
Total	$	124,986	$	—	$	—	$	124,986	$	3,420

(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 modified in a TDR is an

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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 inputs 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 March 31, 2016, the Company had $96.1 million of impaired loans classified as Level 3. Of the $96.1 million of impaired loans, $66.0 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $30.1 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 that are adjusted by a discount representing the estimated cost of sale and is therefore considered a Level 3 valuation.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs for non-covered other real estate owned and covered other real estate owned. At March 31, 2016, the Company had $59.0 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the 10% reduction to the appraisal value representing the estimated cost of sale of the foreclosed property. A higher discount for the estimated cost of sale results in a decreased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at March 31, 2016 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	$	70,242	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,054		Discounted cash flows	Discount rate	2.81%-3.13%	2.98%	Decrease
Mortgage Servicing Rights	10,128		Discounted cash flows	Discount rate	4%-7%	6.20%	Decrease
				Constant prepayment rate (CPR)	1%-46%	11.39%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	66,008	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	58,978		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease

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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 March 31, 2016				At December 31, 2015				At March 31, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	212,300	$	212,300	$	275,795	$	275,795	$	290,872	$	290,872
Interest bearing deposits with banks	817,013		817,013		607,782		607,782		697,799		697,799
Available-for-sale securities	770,983		770,983		1,716,388		1,716,388		1,721,030		1,721,030
Held-to-maturity securities	911,715		924,344		884,826		878,111		—		—
Trading account securities	2,116		2,116		448		448		7,811		7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222		113,222		101,581		101,581		92,948		92,948
Brokerage customer receivables	28,266		28,266		27,631		27,631		25,287		25,287
Mortgage loans held-for-sale, at fair value	314,554		314,554		388,038		388,038		446,355		446,355
Total loans	17,585,261		18,551,606		17,266,790		18,106,829		15,162,753		15,868,532
Mortgage servicing rights	10,128		10,128		9,092		9,092		7,852		7,852
Nonqualified deferred compensation assets	8,926		8,926		8,517		8,517		8,718		8,718
Derivative assets	86,337		86,337		51,298		51,298		62,984		62,984
FDIC indemnification asset	—		—		—		—		10,224		10,224
Accrued interest receivable and other	202,018		202,018		193,092		193,092		181,998		181,998
Total financial assets	$	21,062,839	$	22,041,813	$	21,531,278	$	22,364,602	$	18,716,631	$	19,422,410
Financial Liabilities
Non-maturity deposits	$	15,260,229	$	15,260,229	$	14,634,957	$	14,634,957	$	12,927,014	$	12,927,014
Deposits with stated maturities	3,956,842		3,956,157		4,004,677		3,998,180		4,011,755		4,017,565
Federal Home Loan Bank advances	799,482		807,265		853,431		863,437		406,839		422,305
Other borrowings	253,126		253,126		265,785		265,785		186,716		186,716
Subordinated notes	138,888		139,849		138,861		140,302		138,782		147,851
Junior subordinated debentures	253,566		254,290		268,566		268,046		249,493		250,196
Derivative liabilities	81,712		81,712		45,019		45,019		55,225		55,225
FDIC indemnification liability	10,029		10,029		6,100		6,100		—		—
Accrued interest payable	9,208		9,208		7,394		7,394		8,583		8,583
Total financial liabilities	$	20,763,082	$	20,771,865	$	20,224,790	$	20,229,220	$	17,984,407	$	18,015,455

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 and liability, 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.

Held-to-maturity securities. Held-to-maturity securities include U.S. Government-sponsored agency securities and municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin. Fair values for held-to-maturity securities are typically based on prices obtained from independent pricing vendors. In accordance with ASC 820, the Company has categorized held-to-maturity securities as a Level 2 fair value measurement.

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

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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.

(15) Stock-Based Compensation Plans

In May 2015, the Company’s shareholders approved the 2015 Stock Incentive Plan (“the 2015 Plan”) which provides for the issuance of up to 5,485,000 shares of common stock. The 2015 Plan replaced the 2007 Stock Incentive Plan (“the 2007 Plan”) which replaced the 1997 Stock Incentive Plan (“the 1997 Plan”). The 2015 Plan, the 2007 Plan and the 1997 Plan are collectively referred to as “the Plans.” The 2015 Plan has substantially similar terms to the 2007 Plan and the 1997 Plan. 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, non-qualified 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 non-qualified stock options and time-vested restricted share unit awards (“restricted shares”). The grants of options provide for the purchase of shares of the Company’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 with 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 non-qualified 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 awards granted in 2015 and 2016) or 200% (for awards granted prior to 2015) 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 and issued. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company. Shares that are vested but not issuable pursuant to deferred compensation arrangements accrue additional shares based on the value of dividends otherwise paid.

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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 three month periods ending March 31, 2016 and 2015.

	Three Months Ended
	March 31,		March 31,
	2016		2015
Expected dividend yield	0.9	%	0.9	%
Expected volatility	25.2	%	26.5	%
Risk-free rate	1.3	%	1.3	%
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 actual 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 $2.5 million in the first quarter of 2016 and $2.2 million in the first quarter of 2015.

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A summary of the Company's stock option activity for the three months ended March 31, 2016 and March 31, 2015 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2016	1,551,734		$	41.32
Granted	554,107		40.87
Exercised	(19,110	)	32.86
Forfeited or canceled	(57,004	)	51.08
Outstanding at March 31, 2016	2,029,727		$	41.00	5.0	$	7,951
Exercisable at March 31, 2016	983,659		$	39.13	3.8	$	5,885

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	487,259		44.11
Exercised	(51,522	)	31.50
Forfeited or canceled	(175,579	)	54.40
Outstanding at March 31, 2015	1,894,948		$	42.35	4.6	$	11,649
Exercisable at March 31, 2015	1,158,991		$	41.00	3.3	$	9,291

(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 three months ended March 31, 2016 and March 31, 2015 was $8.60 and $9.68, respectively. The aggregate intrinsic value of options exercised during the three months ended March 31, 2016 and 2015, was $196,000 and $744,000, respectively.

A summary of the Plans' restricted share activity for the three months endedMarch 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	137,593		$	49.63	146,112		$	47.45
Granted	10,516		40.77		12,300		44.11
Vested and issued	(3,726	)	43.87		(4,925	)	36.74
Outstanding at March 31	144,383		$	49.14	153,487		$	47.53
Vested, but not issuable at March 31	88,493		$	51.43	85,000		$	51.88

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A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the three months ended March 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	276,533		$	43.01	295,679		$	38.18
Granted	116,576		40.87		102,828		44.11
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(7,417	)	39.32		(29,926	)	31.41
Outstanding at March 31	307,282		$	43.59	289,991		$	42.90
Vested, but deferred at March 31	6,612		$	37.85	—		$	—

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

(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 a public offering. When, as and 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 a public offering. When, as and 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 quarter of 2016, pursuant to such terms, 30 shares of the Series C Preferred Stock were converted at the option of the respective holders into 729 shares of the Company's common stock. In 2015, pursuant to such terms, 180 shares of the Series C Preferred Stock were converted at the option of the respective holders into 4,374 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 three months of 2016, no warrant shares were exercised. At March 31, 2016, all remaining holders of the interest in the warrant were able to exercise 367,432 warrant shares.

Other

In July 2015, the Company issued 388,573 shares of its common stock in the acquisition of CFIS. In January 2015, the Company issued 422,122 shares of its common stock in the acquisition of Delavan.

At the January 2016 Board of Directors meeting, a quarterly cash dividend of $0.12 per share ($0.48 on an annualized basis) was

declared. It was paid on February 25, 2016 to shareholders of record as of February 11, 2016.

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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 January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,188			(149		)	6,038			21,077
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(804		)	439			—			(365		)
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,086			—			—			2,086
Net other comprehensive income (loss) during the period, net of tax	$	16,470		$	290		$	6,038		$	22,798
Balance at March 31, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,945			(593		)	(9,045		)	6,307
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(318		)	252			—			(66		)
Net other comprehensive income (loss) during the period, net of tax	$	15,627		$	(341	)	$	(9,045	)	$	6,241
Balance at March 31, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Impacted Line on the Consolidated Statements of Income
	March 31,
	2016			2015
Accumulated unrealized losses on securities
Gains included in net income	$	1,325		$	524		Gains on available-for-sale securities, net
	1,325			524			Income before taxes
Tax effect	$	(521	)	$	(206	)	Income tax expense
Net of tax	$	804		$	318		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	255		$	—		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	468			414			Interest on junior subordinated debentures
	(723		)	(414		)	Income before taxes
Tax effect	$	284		$	162		Income tax expense
Net of tax	$	(439	)	$	(252	)	Net income

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Earnings per Share

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

		Three Months Ended
(In thousands, except per share data)		March 31, 2016		March 31, 2015
Net income		$	49,111	$	39,052
Less: Preferred stock dividends and discount accretion		3,628		1,581
Net income applicable to common shares—Basic	(A)	45,483		37,471
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,581
Net income applicable to common shares—Diluted	(B)	47,061		39,052
Weighted average common shares outstanding	(C)	48,448		47,239
Effect of dilutive potential common shares
Common stock equivalents		750		1,158
Convertible preferred stock, if dilutive		3,070		3,075
Total dilutive potential common shares		3,820		4,233
Weighted average common shares and effect of dilutive potential common shares	(D)	52,268		51,472
Net income per common share:
Basic	(A/C)	$	0.94	$	0.79
Diluted	(B/D)	$	0.90	$	0.76

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.

(17) Regulatory Matters

The Company is a bank holding company that has elected to be treated by the Federal Reserve as a financial holding company for purposes of the Bank Holding Company Act of 1956 (as amended, the “BHC Act”). The activities of bank holding companies generally are limited to the business of banking, managing or controlling banks, and other activities determined by the Federal Reserve, by regulation or order prior to November 11, 1999, to be so closely related to banking as to be a proper incident thereto. Impermissible activities for bank holding companies and their subsidiaries include activities that are related to commerce, such as retail sales of nonfinancial products or manufacturing.

As a financial holding company, we may engage in an expanded range of activities, including securities and insurance activities conducted as agent or principal that are considered to be financial in nature. Moreover, financial holding companies may engage in activities incidental or complementary to financial activities, if the Federal Reserve determines that such activities pose no substantial risk to the safety or soundness of depository institutions or the financial system in general. Maintaining our financial holding company status requires that our subsidiary banks remain “well-capitalized” and “well-managed” as defined by regulation, and maintain at least a “satisfactory” rating under the Community Reinvestment Act. In addition, under the Dodd-Frank Wall Street Reform and Consumer Protection Act, we must also remain well-capitalized and well-managed to maintain our financial holding company status. If we or our subsidiary banks fail to continue to meet these requirements, we could be subject to restrictions on new activities and acquisitions, and/or be required to cease and possibly divest of operations that conduct existing activities that are not permissible for a bank holding company that is not a financial holding company.

In light of these requirements, the Company consistently monitors the capitalization of its banks, utilizing the ratios required by regulatory definition: 10.0%, 8.0%, 6.5% and 5.0% for each of total capital to risk-weighted assets, Tier I capital to risk-weighted assets, common equity Tier 1 capital to risk-weighted assets and Tier 1 leverage ratio, respectively. To maintain adequate capitalization in satisfaction of these required ratios, the Company from time to time makes subordinated loans to one or more of its subsidiary banks, with a corresponding intercompany subordinated note issued by such subsidiary bank to the Company on

48

account of each such loan. Such subordinated indebtedness is included in the Company’s calculation of its subsidiary banks’ respective Tier 2 capital.

On April 29, 2016 the Company was informed by the Office of the Comptroller of the Currency (“OCC”) that the intercompany subordinated note agreements that the Company’s subsidiary national banks utilized to issue subordinated debt did not conform with the provisions of 12 CFR 5.47(f)(ii) and OCC Bulletin 2015-22, which were issued in early 2015. This ruling impacted four of the Company’s national bank subsidiaries: Beverly Bank & Trust Company, N.A. (“Beverly Bank”), Schaumburg Bank & Trust Company, N.A. (“Schaumburg Bank”), Barrington Bank & Trust Company, N.A. (“Barrington Bank”) and Old Plank Trail Community Bank, N.A. (“Old Plank Trail Bank”).

Accordingly, the Company has recalculated the capitalization ratios of its affected subsidiary national banks to exclude subordinated debt that had been issued by such banks subsequent to January 1, 2015 from each bank’s respective Tier 2 capital. On April 29, 2016, each of these banks repaid to the Company 100% of their respective outstanding subordinated indebtedness, and the Company in turn infused corresponding amounts of capital surplus (Tier 1 capital) into the four banks as follows: (a) Beverly - $13.0 million; (b) Schaumburg - $10.3 million; (c) Barrington - $5.0 million; and (d) Old Plank - $4.0 million.

Following this effective substitution of Tier 1 capital for Tier 2 capital, the total capital to risk-weighted assets ratios of the four banks remained identical and each bank remains well capitalized. After excluding the following outstanding amounts of subordinated debt from Tier 2 capital, the recalculated total capital to risk-weighted assets ratios for each bank were as follows:

	March 31,			December 31,			September 30,			June 30,			March 31,
(Dollars in thousands)	2016			2015			2015			2015			2015
Subordinated debt excluded from Tier 2 capital
Beverly Bank	$	13,000		$	13,000		$	11,000		$	11,000		$	1,000
Schaumburg Bank	8,500			8,500			3,500			3,500			3,500
Barrington Bank	5,000			—			—			—			—
Old Plank Trail Bank	4,000			—			—			—			—
Total capital (to risk-weighted assets)
Beverly Bank	9.7		%	9.6		%	10.1		%	10.2		%	11.0		%
Schaumburg Bank	10.2			10.3			10.7			10.8			10.7
Barrington Bank	11.4			11.3			11.6			11.4			11.1
Old Plank Trail Bank	10.8			11.3			11.8			11.6			11.9

The Company believes that all of its banks have effectively been consistently well capitalized at all times during 2015 and 2016. As a technical matter under these revised ratio calculations, however, Beverly was not considered to be well capitalized at December 31, 2015 or March 31, 2016. The Company considers this to be immaterial because of the amount of subordinated indebtedness that actually was held by Beverly as of both dates, respectively, notwithstanding the required recalculation to exclude subordinated indebtedness from Tier 2 capital. Nonetheless, because the Credit Agreement requires that the Company’s banks remain well capitalized under the regulatory ratios, the Company has received a waiver from the Required Lenders under the Credit Agreement, waiving any technical default that may have existed on these dates.

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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 March 31, 2016 compared with December 31, 2015 and March 31, 2015, and the results of operations for the three month periods ended March 31, 2016 and 2015, 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 2015 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

First Quarter Highlights

The Company recorded net income of $49.1 million for the first quarter of 2016 compared to $39.1 million in the first quarter of 2015. The results for the first quarter of 2016 demonstrate continued operating strengths including strong loan and deposit growth driving higher net interest income, higher fees from customer interest rate swaps and stable credit quality metrics as well as the early extinguishment of $15.0 million of junior subordinated debentures resulting in a $4.3 million gain. In the first quarter of 2016, the Company completed its acquisition of Generations and its one banking location in Pewaukee, Wisconsin.

The Company increased its loan portfolio, excluding covered loans and mortgage loans held-for-sale, from $15.0 billion at March 31, 2015 and $17.1 billion at December 31, 2015 to $17.4 billion at March 31, 2016. 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, commercial real estate and life insurance premium finance receivables portfolios and the acquisition of Generations. 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 Consolidated Financial Statements in Item 1 of this report.

Management considers the maintenance of adequate liquidity to be important to the management of risk. During the first quarter of 2016, 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. At March 31, 2016, the Company had approximately $1.0 billion in overnight liquid funds and interest-bearing deposits with banks.

The Company recorded net interest income of $171.5 million in the first quarter of 2016 compared to $151.9 million in the first quarter of 2015. The higher level of net interest income recorded in the first quarter of 2016 compared to the first quarter of 2015 resulted primarily from a $2.5 billion increase in average loans, excluding covered loans as well as one additional day in the quarter. The increase in average loans, excluding covered loans, and one additional day was partially offset by a 12 basis point decline in the yield on earning assets, an increase in interest bearing deposits, and an increase in FHLB advances and borrowings under the Company's term credit facility at the end of the second quarter of 2015 (see "Net Interest Income" for further detail).

Non-interest income totaled $68.8 million in the first quarter of 2016, an increase of $4.2 million, or 7%, compared to the first quarter of 2015. The increase in the first quarter of 2016 compared to the first quarter of 2015 was primarily attributable to a $4.3 million gain from an extinguishment of debt, gains on sales of investment securities, increased operating lease income, higher interest rate swap fees and an increase in service charges on deposits (see “Non-Interest Income” for further detail).

Non-interest expense totaled $153.7 million in the first quarter of 2016, increasing $6.4 million, or 4%, compared to the first quarter of 2015. The increase compared to the first quarter of 2015 was primarily attributable to higher salary and employee benefit costs caused by the addition of employees from the various acquisitions, and higher staffing levels as the Company grows as well as higher commissions and incentive compensation, increased equipment expense, including operating lease equipment depreciation and higher data processing expenses (see “Non-Interest Expense” for further detail).

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RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures for the three months ended March 31, 2016, as compared to the same period last year, are shown below:

	Three months ended
(Dollars in thousands, except per share data)	March 31, 2016			March 31, 2015			Percentage (%) or Basis Point (bp) Change
Net income	$	49,111		$	39,052		26	%
Net income per common share—Diluted	0.90			0.76			18
Net revenue (1)	240,261			216,432			11
Net interest income	171,509			151,891			13
Net interest margin (2)	3.32		%	3.42		%	(10) bp
Net overhead ratio (2)(3)	1.49			1.69			(20	)
Efficiency ratio (2) (4)	63.96			67.90			(394	)
Return on average assets	0.86			0.80			6
Return on average common equity	8.55			7.64			91
Return on average tangible common equity	11.33			9.96			137

At end of period
Total assets	$	23,488,168		$	20,371,566		15	%
Total loans, excluding loans held-for-sale, excluding covered loans	17,446,413			14,953,059			17
Total loans, including loans held-for-sale, excluding covered loans	17,760,967			15,399,414			15
Total deposits	19,217,071			16,938,769			13
Total shareholders’ equity	2,418,442			2,131,074			13
Tangible common equity ratio (TCE) (2)	7.2		%	7.9		%	(70) bp
Tangible common equity ratio, assuming full conversion of preferred stock (2)	7.8		%	8.5		%	(70	)
Book value per common share (2)	$	44.67		$	42.30		6	%
Tangible common book value per share (2)	34.20			33.04			4
Market price per common share	44.34			47.68			(7	)
Excluding covered loans:
Allowance for credit losses to total loans (5)	0.64		%	0.64		%	—
Non-performing loans to total loans	0.51		%	0.55		%	(4) 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 generally accepted accounting principles (“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.

52

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
	March 31,			March 31,
(Dollars and shares in thousands)	2016			2015
Calculation of Net Interest Margin and Efficiency Ratio
(A) Interest Income (GAAP)	$	192,231		$	170,357
Taxable-equivalent adjustment:
- Loans	509			327
- Liquidity Management Assets	920			727
- Other Earning Assets	6			7
Interest Income - FTE	$	193,666		$	171,418
(B) Interest Expense (GAAP)	20,722			18,466
Net interest income - FTE	$	172,944		$	152,952
(C) Net Interest Income (GAAP) (A minus B)	$	171,509		$	151,891
(D) Net interest margin (GAAP-derived)	3.29		%	3.40		%
Net interest margin - FTE	3.32		%	3.42		%
(E) Efficiency ratio (GAAP-derived)	64.34		%	68.23		%
Efficiency ratio - FTE	63.96		%	67.90		%
(F) Net Overhead Ratio (GAAP-derived)	1.49		%	1.69		%
Calculation of Tangible Common Equity ratio (at period end)
Total shareholders’ equity	$	2,418,442		$	2,131,074
(G) Less: Convertible preferred stock	(126,257		)	(126,427		)
Less: Non-convertible preferred stock	(125,000		)	—
Less: Intangible assets	(508,005		)	(439,055		)
(H) Total tangible common shareholders’ equity	$	1,659,180		$	1,565,592
Total assets	$	23,488,168		$	20,371,566
Less: Intangible assets	(508,005		)	(439,055		)
(I) Total tangible assets	$	22,980,163		$	19,932,511
Tangible common equity ratio (H/I)	7.2		%	7.9		%
Tangible common equity ratio, assuming full conversion of convertible preferred stock ((H-G)/I)	7.8		%	8.5		%
Calculation of book value per share
Total shareholders’ equity	$	2,418,442		$	2,131,074
Less: Preferred stock	(251,257		)	(126,427		)
(J) Total common equity	$	2,167,185		$	2,004,647
(K) Actual common shares outstanding	48,519			47,390
Book value per common share (J/K)	$	44.67		$	42.30
Tangible common book value per share (H/K)	$	34.20		$	33.04

Calculation of return on average common equity
(L) Net income applicable to common shares	45,483		37,471
Add: After-tax intangible asset amortization	812		615
(M) Tangible net income applicable to common shares	46,295		38,086
Total average shareholders' equity	2,389,770		2,114,356
Less: Average preferred stock	(251,262	)	(126,445	)
(N) Total average common shareholders' equity	2,138,508		1,987,911
Less: Average intangible assets	(495,594	)	(436,456	)
(O) Total average tangible common shareholders’ equity	1,642,914		1,551,455
Return on average common equity, annualized (L/N)	8.55	%	7.64	%
Return on average tangible common equity, annualized (M)/O)	11.33	%	9.96	%

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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 55 of the Company’s 2015 Form 10-K.

Net Income

Net income for the quarter ended March 31, 2016 totaled $49.1 million, an increase of $10.1 million, or 26%, compared to the first quarter of 2015. On a per share basis, net income for the first quarter of 2016 totaled $0.90 per diluted common share compared to $0.76 in the first quarter of 2015.

The most significant factors impacting net income for the first quarter of 2016 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, a $4.3 million gain from an extinguishment of debt, gains on sales of investment securities, increased operating lease income, higher interest rate swap fees and an increase in service charges on deposits. These improvements were offset by an increase in non-interest expense attributable to higher salary and employee benefit costs caused by the addition of employees from the various acquisitions, and higher staffing levels as the Company grows as well as higher commissions and incentive compensation, increased equipment expense, including operating lease equipment depreciation and higher data processing expenses.

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.

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Quarter Ended March 31, 2016 compared to the Quarters Ended December 31, 2015 and March 31, 2015

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 first quarter of 2016 as compared to the fourth quarter of 2015 (sequential quarters) and first quarter of 2015 (linked quarters):

	Average Balance for three months ended,									Interest for three months ended,						Yield/Rate for three months ended,
(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015			March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Liquidity management assets(1)(2)(7)	$	3,300,138		$	3,245,393		$	2,868,906		$	19,794	$	18,621	$	16,214	2.41	%	2.28	%	2.29	%
Other earning assets(2)(3)(7)	28,731			29,792			27,717			236		244		201		3.31		3.26		2.94
Loans, net of unearned income(2)(4)(7)	17,508,593			16,889,922			15,031,917			171,625		168,060		151,316		3.94		3.95		4.08
Covered loans	141,351			154,846			214,211			2,011		1,871		3,687		5.72		4.79		6.98
Total earning assets(7)	$	20,978,813		$	20,319,953		$	18,142,751		$	193,666	$	188,796	$	171,418	3.71	%	3.69	%	3.83	%
Allowance for loan and covered loan losses	(112,028		)	(109,448		)	(96,918		)
Cash and due from banks	259,343			260,593			249,687
Other assets	1,776,785			1,754,014			1,519,086
Total assets	$	22,902,913		$	22,225,112		$	19,814,606
Interest-bearing deposits	$	13,717,333		$	13,606,046		$	12,863,507		$	12,781	$	12,617	$	11,814	0.37	%	0.37	%	0.37	%
Federal Home Loan Bank advances	825,104			441,669			347,456			2,886		2,684		2,156		1.41		2.41		2.52
Other borrowings	257,384			269,738			194,663			1,058		1,007		788		1.65		1.48		1.64
Subordinated notes	138,870			138,852			138,773			1,777		1,777		1,775		5.12		5.12		5.12
Junior subordinated notes	257,687			268,566			249,493			2,220		2,196		1,933		3.41		3.20		3.10
Total interest-bearing liabilities	$	15,196,378		$	14,724,871		$	13,793,892		$	20,722	$	20,281	$	18,466	0.55	%	0.55	%	0.54	%
Non-interest bearing deposits	4,939,746			4,776,977			3,584,452
Other liabilities	377,019			375,719			321,906
Equity	2,389,770			2,347,545			2,114,356
Total liabilities and shareholders’ equity	$	22,902,913		$	22,225,112		$	19,814,606
Interest rate spread(5)(7)																3.16	%	3.14	%	3.29	%
Net free funds/contribution(6)	$	5,782,435		$	5,595,082		$	4,348,859								0.16	%	0.15	%	0.13	%
Net interest income/ margin(7)										$	172,944	$	168,515	$	152,952	3.32	%	3.29	%	3.42	%

(1) Liquidity management assets include available-for-sale and held-to-maturity 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 March 31, 2016, December 31, 2015 and March 31, 2015 were $1.4 million, $1.3 millionand $1.1 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.

55

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 March 31, 2016 to December 31, 2015 and March 31, 2015. 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:

	First Quarter of 2016 Compared to Fourth Quarter of 2015			First Quarter of 2016 Compared to First Quarter of 2015
(Dollars in thousands)
Tax-equivalent net interest income for comparative period	$	168,515		$	152,952
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)	3,555			21,473
Change due to interest rate fluctuations (rate)	2,725			(3,162		)
Change due to number of days in each period	(1,851		)	1,681
Tax-equivalent net interest income for the period ended March 31, 2016	$	172,944		$	172,944

Non-interest Income

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

	Three Months Ended						$			%
(Dollars in thousands)	March 31, 2016			March 31, 2015			Change			Change
Brokerage	$	6,057		$	6,852		$	(795	)	(12	)%
Trust and asset management	12,263			11,248			1,015			9
Total wealth management	18,320			18,100			220			1
Mortgage banking	21,735			27,800			(6,065		)	(22	)
Service charges on deposit accounts	7,406			6,297			1,109			18
Gains on available-for-sale securities, net	1,325			524			801			NM
Fees from covered call options	1,712			4,360			(2,648		)	(61	)
Trading losses, net	(168		)	(477		)	309			NM
Operating lease income, net	2,806			65			2,741			NM
Other:
Interest rate swap fees	4,438			2,191			2,247			NM
BOLI	472			766			(294		)	(38	)
Administrative services	1,069			1,026			43			4
Gain on extinguishment of debt	4,305			—			4,305			NM
Miscellaneous	5,332			3,889			1,443			37
Total Other	15,616			7,872			7,744			98
Total Non-Interest Income	$	68,752		$	64,541		$	4,211		7	%

NM - Not Meaningful

Notable contributions to the change in non-interest income are as follows:

The increase in wealth management revenue during the current period as compared to the first quarter of 2015 is primarily attributable to growth in assets under management due to new customers. 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, managed money fees and insurance product commissions at Wayne Hummer Investments.

56

The decrease in mortgage banking revenue in the first quarter of 2016 as compared to the same quarter of 2015 resulted primarily from lower origination volumes in the current quarter. Mortgage loans originated or purchased for sale were $736.6 million in the current quarter as compared to $941.7 million in the first quarter of 2015. Mortgage banking revenue includes revenue from activities related to originating, selling and servicing residential real estate loans for the secondary market. 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 table below presents additional selected information regarding mortgage banking revenue for the respective periods.

	Three Months Ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Retail originations	$	704,990		$	892,541
Correspondent originations	31,658			49,110
(A) Total originations	$	736,648		$	941,651
Purchases as a percentage of originations	56		%	43		%
Refinances as a percentage of originations	44			57
Total	100		%	100		%
(B) Production revenue (1)	$	20,021		$	27,823
Production margin (A / B)	2.72		%	2.95		%
Loans serviced for others	$	1,044,745		$	882,270
Mortgage servicing rights, at fair value	10,128			7,852
Percentage of mortgage servicing rights to loans serviced for others	0.97		%	0.89		%

(1) Production revenue represents revenue earned from the origination and subsequent sale of mortgages, including gains on loans sold and fees from originations, processing and other related activities.

The increase in service charges on deposit accounts in the current quarter is mostly a result of higher account analysis fees on deposit accounts which have increased as a result of the Company's commercial banking initiative as well as additional service charges on deposit accounts from acquired institutions.

The increase in net gains on available-for-sale securities in the current quarter primarily relate to the sale of mortgage-backed securities that were held in the Company's available-for-sale securities portfolio.

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 and do not qualify as hedges pursuant to accounting guidance. Fees from covered call options decreased in the current quarter compared to the first quarter of 2015 primarily as a result of selling call options against a smaller value of underlying securities resulting in lower premiums received by the Company. There were no outstanding call option contracts at March 31, 2016 and 2015.

The increase in operating lease income in the current quarter compared to the prior year quarter is primarily related to growth in business from the Company's leasing divisions.

The increase in other non-interest income in the current quarter as compared to the same period of 2015 is primarily due to the gain on the extinguishment of junior subordinated debentures, higher 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 and higher foreign currency re-measurement gains, partially offset by net losses on partnership investments and lower income on bank-owned life insurance.

57

Non-interest Expense

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

	Three months ended				$ Change			% Change
(Dollars in thousands)	March 31, 2016		March 31, 2015
Salaries and employee benefits:
Salaries	$	50,282	$	46,848	$	3,434		7	%
Commissions and incentive compensation	26,375		25,494		881			3
Benefits	19,154		17,788		1,366			8
Total salaries and employee benefits	95,811		90,130		5,681			6
Equipment	8,767		7,779		988			13
Operating lease equipment depreciation	2,050		57		1,993			NM
Occupancy, net	11,948		12,351		(403		)	(3	)
Data processing	6,519		5,448		1,071			20
Advertising and marketing	3,779		3,907		(128		)	(3	)
Professional fees	4,059		4,664		(605		)	(13	)
Amortization of other intangible assets	1,298		1,013		285			28
FDIC insurance	3,613		2,987		626			21
OREO expense, net	560		1,411		(851		)	(60	)
Other:
Commissions—3rd party brokers	1,310		1,386		(76		)	(5	)
Postage	1,302		1,633		(331		)	(20	)
Miscellaneous	12,714		14,552		(1,838		)	(13	)
Total other	15,326		17,571		(2,245		)	(13	)
Total Non-Interest Expense	$	153,730	$	147,318	$	6,412		4	%

Notable contributions to the change in non-interest expense are as follows:

Salaries and employee benefits expense increased in the current quarter compared to the first quarter of 2015 primarily as a result of the addition of employees from acquisitions, increased staffing as the Company grows and an increase in employee benefits (primarily health plan and payroll taxes related).

Operating lease equipment depreciation increased in the current quarter compared to the first quarter of 2015 as a result of growth in business from the Company's leasing divisions.

The decrease in occupancy expenses in the current quarter compared to the first quarter of 2015 is primarily related to higher rental income for leased premises in the current quarter. Occupancy expense includes depreciation on premises, real estate taxes, utilities and maintenance of premises, as well as net rent expense for leased premises.

Excluding the effect of acquisition-related charges, the amount of data processing expenses incurred increased in the current quarter compared to the prior year quarter due to the overall growth of loan and deposit accounts.

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.

The decrease in OREO expense in the current quarter compared to the same period of 2015 is primarily the result of higher gains recorded on OREO sales, fewer negative valuation adjustments of OREO properties and lower expenses to maintain OREO properties. OREO costs include all costs related to obtaining, maintaining and selling other real estate owned properties and are shown net of any gains from the sale of such properties.

The decrease in miscellaneous expenses in the current quarter as compared to the first quarter of 2015 is primarily a result of lower loan expenses, covered asset expenses 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.

58

Income Taxes

The Company recorded income tax expense of $29.4 million for the three months ended March 31, 2016, compared to $24.0 million for same period of 2015. The effective tax rates were 37.4% and 38.0% for the first quarters of 2016 and 2015, respectively.

Operating Segment Results

As described in Note 12 to the Consolidated Financial Statements in Item 1, 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 and leases originated by the specialty finance segment and sold or assigned 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 March 31, 2016 totaled $141.7 million as compared to $122.7 million for the same period in 2015, an increase of $19.0 million, or 16%. The increase during the period is primarily attributable to growth in earning assets including those acquired in bank acquisitions. The community banking segment’s non-interest income totaled $45.7 million in the first quarter of 2016, an increase of $755,000, or 2%, when compared to the first quarter of 2015 total of $44.9 million. The increase in non-interest income in the current quarter was primarily attributable to a gain on extinguishment of debt and higher fees on interest rate swaps. The community banking segment’s net income for the quarter ended March 31, 2016 totaled $34.8 million, an increase of $9.8 million as compared to net income in the first quarter of 2015 of $25.0 million.

The specialty finance segment's net interest income totaled $21.2 million for the quarter ended March 31, 2016, compared to $21.0 million for the same period in 2015, an increase of $134,000, or 1%. The increase during the period is primarily attributable to growth in earning assets. The specialty finance segment’s non-interest income totaled $12.4 million and $7.9 million for the three month periods ending March 31, 2016 and 2015, respectively . The increase in non-interest income in the current year period is primarily the result of higher originations and increased balances related to the life insurance premium finance portfolio as well as increased leasing activity since the prior year period. Our commercial premium finance operations, life insurance finance operations, accounts receivable finance operations and lease financing operation accounted for 49%, 34%, 8% and 9%, respectively, of the total revenues of our specialty finance business for the three month period ending March 31, 2016. The net income of the specialty finance segment for the quarter ended March 31, 2016 totaled $11.5 million as compared to $11.0 million for the quarter ended March 31, 2015.

The wealth management segment reported net interest income of $4.5 million for the first quarter of 2016 compared to $4.2 million in the same quarter of 2015. 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 $968.5 million and $878.2 million in the first three months of 2016 and 2015, respectively. This segment recorded non-interest income of $18.8 million for the first quarter of 2016, which was relatively flat compared to $18.7 million for the first quarter of 2015. 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 $2.9 million for the first quarter of 2016 compared to $3.1 million for the first quarter of 2015.

Financial Condition

Total assets were $23.5 billion at March 31, 2016, representing an increase of $3.1 billion, or 15%, when compared to March 31, 2015 and an increase of approximately $578.8 million, or 10% on an annualized basis, when compared to December 31, 2015. Total funding, which includes deposits, all notes and advances, including secured borrowings and the junior subordinated debentures, was $20.7 billion at March 31, 2016, $20.2 billion at December 31, 2015, and $17.9 billion at March 31, 2015. 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.

59

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
	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Loans:
Commercial	$	4,687,571	22	%	$	4,427,439	22	%	$	3,979,193	22	%
Commercial real estate	5,628,827		27		5,399,220		27		4,625,033		26
Home equity	779,503		4		789,639		4		713,537		4
Residential real estate (1)	913,849		4		906,819		4		805,620		4
Premium finance receivables	5,360,834		26		5,197,316		26		4,727,623		26
Other loans	138,009		1		169,489		1		180,911		1
Total loans, net of unearned income excluding covered loans (2)	$	17,508,593	84	%	$	16,889,922	84	%	$	15,031,917	83	%
Covered loans	141,351		1		154,846		1		214,211		1
Total average loans (2)	$	17,649,944	85	%	$	17,044,768	85	%	$	15,246,128	84	%
Liquidity management assets (3)	$	3,300,138	15	%	$	3,245,393	15	%	2,868,906		16	%
Other earning assets (4)	28,731		—		29,792		—		27,717		—
Total average earning assets	$	20,978,813	100	%	$	20,319,953	100	%	$	18,142,751	100	%
Total average assets	$	22,902,913			$	22,225,112			$	19,826,240
Total average earning assets to total average assets			92	%			91	%			92	%

(1) Includes mortgage loans held-for-sale

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

(3) Liquidity management assets include investment 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

Loans. Average total loans, net of unearned income, totaled $17.6 billion in the first quarter of 2016, increasing $2.4 billion, or 16%, from the first quarter of 2015 and $605.2 million, or 14% on an annualized basis, from the fourth quarter of 2015. Combined, the commercial and commercial real estate loan categories comprised 58% and 56% of the average loan portfolio in the first quarters of 2016 and 2015, respectively. Growth realized in these categories for the first quarter of 2016 as compared to the sequential and prior year periods is primarily attributable to the various bank acquisitions and increased business development efforts.

The increase in the home equity loan portfolio during the first quarter of 2016 compared to the first quarter of 2015 is primarily attributable to the various bank acquisitions. 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.

Residential real estate loans averaged $913.8 million in the first quarter of 2016, and increased $108.2 million, or 13% from the average balance of $805.6 million in same period of 2015. Additionally, compared to the quarter ended December 31, 2015, the average balance increased $7.0 million, or 3% on an annualized basis. The residential real estate loan 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 decreased when compared to the quarter ended March 31, 2015 as result of lower origination volumes due to unfavorable changes in product and channel mix as well as more competitive pricing.

Average premium finance receivables totaled $5.4 billion in the first quarter of 2016, and accounted for 30% of the Company’s average total loans. The increase during 2016 compared to both periods was the result of continued originations within the portfolio due to the effective marketing and customer servicing. Approximately $1.5 billion of premium finance receivables were originated in the first quarter of 2016 compared to $1.6 billion during the same period of 2015. Premium finance receivables consist of a commercial portfolio and a life portfolio comprising approximately 44% and 56%, respectively, of the average total balance of premium finance receivables for the first quarter of 2016, and 49% and 51%, respectively, for the first quarter of 2015.

60

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 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 and as loss sharing agreements expire. 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.

Liquidity management assets. 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. 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. 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.

LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio

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

	March 31, 2016				December 31, 2015				March 31, 2015
			% of				% of				% of
(Dollars in thousands)	Amount		Total		Amount		Total		Amount		Total
Commercial	$	4,890,246	28	%	$	4,713,909	27	%	$	4,211,932	28	%
Commercial real estate	5,737,959		32		5,529,289		32		4,710,486		31
Home equity	774,342		4		784,675		5		709,283		5
Residential real estate	626,043		4		607,451		3		495,925		3
Premium finance receivables—commercial	2,320,987		13		2,374,921		14		2,319,623		15
Premium finance receivables—life insurance	2,976,934		17		2,961,496		17		2,375,654		16
Consumer and other	119,902		1		146,376		1		130,156		1
Total loans, net of unearned income, excluding covered loans	$	17,446,413	99	%	$	17,118,117	99	%	$	14,953,059	99	%
Covered loans	138,848		1		148,673		1		209,694		1
Total loans	$	17,585,261	100	%	$	17,266,790	100	%	$	15,162,753	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 and amounts of our loans within these portfolios (excluding covered loans) as of March 31, 2016 and 2015:

	As of March 31, 2016						As of March 31, 2015
			% of		Allowance For Loan				% of		Allowance For Loan
			Total		Losses				Total		Losses
(Dollars in thousands)	Balance		Balance		Allocation		Balance		Balance		Allocation
Commercial:
Commercial, industrial and other	$	3,404,555	32.0	%	$	26,932	$	2,807,752	31.4	%	$	23,613
Franchise	274,558		2.6		3,213		225,762		2.6		1,645
Mortgage warehouse lines of credit	193,735		1.8		1,411		186,372		2.1		1,376
Asset-based lending	747,901		7.0		5,963		810,685		9.1		7,033
Leases	249,418		2.3		248		172,014		1.9		59
PCI - commercial loans (1)	20,079		0.2		668		9,347		0.1		—
Total commercial	$	4,890,246	45.9	%	$	38,435	$	4,211,932	47.2	%	$	33,726
Commercial Real Estate:
Construction	$	391,322	3.7	%	$	4,236	$	256,827	2.9	%	$	4,009
Land	95,580		0.9		3,233		89,042		1.0		2,216
Office	888,494		8.4		5,824		743,126		8.3		5,181
Industrial	742,956		7.0		6,440		604,326		6.8		4,289
Retail	897,467		8.4		5,829		742,527		8.3		4,856
Multi-family	763,073		7.2		7,581		655,403		7.3		4,925
Mixed use and other	1,795,717		17.0		12,116		1,552,563		17.4		11,413
PCI - commercial real estate (1)	163,350		1.5		4		66,672		0.8		113
Total commercial real estate	$	5,737,959	54.1	%	$	45,263	$	4,710,486	52.8	%	$	37,002
Total commercial and commercial real estate	$	10,628,205	100.0	%	$	83,698	$	8,922,418	100.0	%	$	70,728
Commercial real estate—collateral location by state:
Illinois	$	4,533,361	79.0	%			$	3,750,211	79.6	%
Wisconsin	585,809		10.2				476,966		10.1
Total primary markets	$	5,119,170	89.2	%			$	4,227,177	89.7	%
Florida	52,649		0.9				62,504		1.3
California	59,877		1.0				29,769		0.6
Arizona	39,705		0.7				13,787		0.3
Indiana	131,762		2.3				95,851		2.0
Other	334,796		5.9				281,398		6.1
Total	$	5,737,959	100.0	%			$	4,710,486	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 $38.4 million as of March 31, 2016 compared to $33.7 million as of March 31, 2015.

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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, 89.2% of our commercial real estate loan portfolio is located in this region as of March 31, 2016. While commercial real estate market conditions have improved recently, a number of specific markets continue to be under stress. We have been able to effectively manage our total non-performing commercial real estate loans. As of March 31, 2016, our allowance for loan losses related to this portfolio is $45.3 million compared to $37.0 million as of March 31, 2015.

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 $193.7 million as of March 31, 2016 from $186.4 million as of March 31, 2015.

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.

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 March 31, 2016, our residential loan portfolio totaled $626.0 million, or 4% 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 March 31, 2016, $12.0 million of our residential real estate mortgages, or 1.9% of our residential real estate loan portfolio were classified as nonaccrual, $406,000 were 90 or more days past due and still accuring (0.1%), $10.3 million were 30 to 89 days past due (1.6%) and $603.4 million were current (96.4%). 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 March 31, 2016 and 2015 was $1.0 billion and $882.3 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 March 31, 2016, approximately $3.5 million of our mortgage loans consist of interest-only loans.

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Premium finance receivables – commercial. FIFC and FIFC Canada originated approximately $1.3 billion and $1.4 billion in commercial insurance premium finance receivables during the first quarter of 2016 and 2015, respectively. 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 $209.7 million in life insurance premium finance receivables in the first quarter of 2016 as compared to$167.6 million of originations in the first quarter of 2015. 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.

Covered loans. 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 and as loss sharing agreements expire. 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.

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Maturities and Sensitivities of Loans to Changes in Interest Rates

The following table classifies the commercial loan portfolios at March 31, 2016 by date at which the loans reprice or mature, and the type of rate exposure:

As of March 31, 2016	One year or less		From one to five years		Over five years
(Dollars in thousands)							Total
Commercial
Fixed rate	$	77,619	$	649,077	$	327,400	$	1,054,096
Variable rate	3,819,422		12,765		3,963		3,836,150
Total commercial	$	3,897,041	$	661,842	$	331,363	$	4,890,246
Commercial real estate
Fixed rate	349,235		1,737,388		223,434		2,310,057
Variable rate	3,367,843		56,224		3,835		3,427,902
Total commercial real estate	$	3,717,078	$	1,793,612	$	227,269	$	5,737,959
Premium finance receivables, net of unearned income
Fixed rate	2,359,605		51,407		398		2,411,410
Variable rate	2,886,511		—		—		2,886,511
Total premium finance receivables (1)	$	5,246,116	$	51,407	$	398	$	5,297,921

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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)	March 31, 2016			December 31, 2015			March 31, 2015
Loans past due greater than 90 days and still accruing (1):
Commercial	$	338		$	541		$	—
Commercial real estate	1,260			—			—
Home equity	—			—			—
Residential real estate	—			—			—
Premium finance receivables—commercial	9,548			10,294			8,062
Premium finance receivables—life insurance	1,641			—			—
Consumer and other	180			150			91
Total loans past due greater than 90 days and still accruing	12,967			10,985			8,153
Non-accrual loans (2):
Commercial	12,373			12,712			5,586
Commercial real estate	26,996			26,645			29,982
Home equity	9,365			6,848			7,665
Residential real estate	11,964			12,043			14,248
Premium finance receivables—commercial	15,350			14,561			15,902
Premium finance receivables—life insurance	—			—			—
Consumer and other	484			263			236
Total non-accrual loans	76,532			73,072			73,619
Total non-performing loans:
Commercial	12,711			13,253			5,586
Commercial real estate	28,256			26,645			29,982
Home equity	9,365			6,848			7,665
Residential real estate	11,964			12,043			14,248
Premium finance receivables—commercial	24,898			24,855			23,964
Premium finance receivables—life insurance	1,641			—			—
Consumer and other	664			413			327
Total non-performing loans	$	89,499		$	84,057		$	81,772
Other real estate owned	24,022			26,849			33,131
Other real estate owned—from acquisitions	16,980			17,096			9,126
Other repossessed assets	171			174			259
Total non-performing assets	$	130,672		$	128,176		$	124,288
TDRs performing under the contractual terms of the loan agreement	34,949			42,744			54,687
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial	0.26		%	0.28		%	0.13		%
Commercial real estate	0.49			0.48			0.64
Home equity	1.21			0.87			1.08
Residential real estate	1.91			1.98			2.87
Premium finance receivables—commercial	1.07			1.05			1.03
Premium finance receivables—life insurance	0.06			—			—
Consumer and other	0.55			0.28			0.25
Total non-performing loans	0.51		%	0.49		%	0.55		%
Total non-performing assets, as a percentage of total assets	0.56		%	0.56		%	0.61		%
Allowance for loan losses as a percentage of total non-performing loans	123.10		%	125.39		%	115.50		%

(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 $17.6 million, $9.1 million, and $12.5 million as of March 31, 2016, December 31, 2015, March 31, 2015 respectively.

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.

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Loan Portfolio Aging

The tables below show the aging of the Company’s loan portfolio at March 31, 2016 and December 31, 2015:

			90+ days		60-89		30-59
As of March 31, 2016			and still		days past		days past
(Dollars in thousands)	Nonaccrual		accruing		due		due		Current		Total Loans
Loan Balances:
Commercial
Commercial, industrial and other	$	12,370	$	338	$	3,228	$	25,608	$	3,363,011	$	3,404,555
Franchise	—		—		—		1,400		273,158		274,558
Mortgage warehouse lines of credit	—		—		—		1,491		192,244		193,735
Asset-based lending	3		—		117		10,597		737,184		747,901
Leases	—		—		—		5,177		244,241		249,418
PCI - commercial (1)	—		1,893		—		128		18,058		20,079
Total commercial	12,373		2,231		3,345		44,401		4,827,896		4,890,246
Commercial real estate
Construction	273		—		—		2,023		389,026		391,322
Land	1,746		—		—		—		93,834		95,580
Office	7,729		1,260		980		12,571		865,954		888,494
Industrial	10,960		—		—		3,935		728,061		742,956
Retail	1,633		—		2,397		2,657		890,780		897,467
Multi-family	287		—		655		2,047		760,084		763,073
Mixed use and other	4,368		—		187		12,312		1,778,850		1,795,717
PCI - commercial real estate (1)	—		24,738		1,573		10,344		126,695		163,350
Total commercial real estate	26,996		25,998		5,792		45,889		5,633,284		5,737,959
Home equity	9,365		—		791		4,474		759,712		774,342
Residential real estate, including PCI	11,964		406		193		10,108		603,372		626,043
Premium finance receivables
Commercial insurance loans	15,350		9,548		5,583		15,086		2,275,420		2,320,987
Life insurance loans	—		1,641		3,432		198		2,675,525		2,680,796
PCI - life insurance loans (1)	—		—		—		—		296,138		296,138
Consumer and other, including PCI	484		245		118		364		118,691		119,902
Total loans, net of unearned income, excluding covered loans	$	76,532	$	40,069	$	19,254	$	120,520	$	17,190,038	$	17,446,413
Covered loans	5,324		7,995		349		6,491		118,689		138,848
Total loans, net of unearned income	$	81,856	$	48,064	$	19,603	$	127,011	$	17,308,727	$	17,585,261

Aging as a % of Loan Balance: As of March 31, 2016	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial, industrial and other	0.4	%	—	%	0.1	%	0.8	%	98.7	%	100.0	%
Franchise	—		—		—		0.5		99.5		100.0
Mortgage warehouse lines of credit	—		—		—		0.8		99.2		100.0
Asset-based lending	—		—		—		1.4		98.6		100.0
Leases	—		—		—		2.1		97.9		100.0
PCI - commercial (1)	—		9.4		—		0.6		90.0		100.0
Total commercial	0.3		—		0.1		0.9		98.7		100.0
Commercial real estate
Construction	0.1		—		—		0.5		99.4		100.0
Land	1.8		—		—		—		98.2		100.0
Office	0.9		0.1		0.1		1.4		97.5		100.0
Industrial	1.5		—		—		0.5		98.0		100.0
Retail	0.2		—		0.3		0.3		99.2		100.0
Multi-family	—		—		0.1		0.3		99.6		100.0
Mixed use and other	0.2		—		—		0.7		99.1		100.0
PCI - commercial real estate (1)	—		15.1		1.0		6.3		77.6		100.0
Total commercial real estate	0.5		0.5		0.1		0.8		98.1		100.0
Home equity	1.2		—		0.1		0.6		98.1		100.0
Residential real estate, including PCI	1.9		0.1		—		1.6		96.4		100.0
Premium finance receivables
Commercial insurance loans	0.7		0.5		0.2		0.6		98.0		100.0
Life insurance loans	—		0.1		0.1		—		99.8		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.4		0.2		0.1		0.3		99.0		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.2	%	0.1	%	0.7	%	98.6	%	100.0	%
Covered loans	3.8		5.8		0.3		4.7		85.4		100.0
Total loans, net of unearned income	0.5	%	0.3	%	0.1	%	0.7	%	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.

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			90+ days		60-89		30-59
As of December 31, 2015			and still		days past		days past
(Dollars in thousands)	Nonaccrual		accruing		due		due		Current		Total Loans
Loan Balances:
Commercial
Commercial, industrial and other	$	12,704	$	6	$	6,749	$	12,930	$	3,226,139	$	3,258,528
Franchise	—		—		—		—		245,228		245,228
Mortgage warehouse lines of credit	—		—		—		—		222,806		222,806
Asset-based lending	8		—		3,864		1,844		736,968		742,684
Leases	—		535		748		4,192		220,599		226,074
PCI - commercial (1)	—		892		—		2,510		15,187		18,589
Total commercial	12,712		1,433		11,361		21,476		4,666,927		4,713,909
Commercial real estate
Construction	306		—		1,371		1,645		355,338		358,660
Land	1,751		—		—		120		76,546		78,417
Office	4,619		—		764		3,817		853,801		863,001
Industrial	9,564		—		1,868		1,009		715,207		727,648
Retail	1,760		—		442		2,310		863,887		868,399
Multi-family	1,954		—		597		6,568		733,230		742,349
Mixed use and other	6,691		—		6,723		7,215		1,712,187		1,732,816
PCI - commercial real estate (1)	—		22,111		4,662		16,559		114,667		157,999
Total commercial real estate	26,645		22,111		16,427		39,243		5,424,863		5,529,289
Home equity	6,848		—		1,889		5,517		770,421		784,675
Residential real estate, including PCI	12,043		488		2,166		3,903		588,851		607,451
Premium finance receivables
Commercial insurance loans	14,561		10,294		6,624		21,656		2,321,786		2,374,921
Life insurance loans	—		—		3,432		11,140		2,578,632		2,593,204
PCI - life insurance loans (1)	—		—		—		—		368,292		368,292
Consumer and other, including PCI	263		211		204		1,187		144,511		146,376
Total loans, net of unearned income, excluding covered loans	$	73,072	$	34,537	$	42,103	$	104,122	$	16,864,283	$	17,118,117
Covered loans	5,878		7,335		703		5,774		128,983		148,673
Total loans, net of unearned income	$	78,950	$	41,872	$	42,806	$	109,896	$	16,993,266	$	17,266,790

Aging as a % of Loan Balance: As of December 31, 2015	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial, industrial and other	0.4	%	—	%	0.2	%	0.4	%	99.0	%	100.0	%
Franchise	—		—		—		—		100.0		100.0
Mortgage warehouse lines of credit	—		—		—		—		100.0		100.0
Asset-based lending	—		—		0.5		0.3		99.2		100.0
Leases	—		0.2		0.3		1.9		97.6		100.0
PCI - commercial (1)	—		4.8		—		13.5		81.7		100.0
Total commercial	0.3		—		0.2		0.5		99.0		100.0
Commercial real estate
Construction	0.1		—		0.4		0.5		99.0		100.0
Land	2.2		—		—		0.2		97.6		100.0
Office	0.5		—		0.1		0.4		99.0		100.0
Industrial	1.3		—		0.3		0.1		98.3		100.0
Retail	0.2		—		0.1		0.3		99.4		100.0
Multi-family	0.3		—		0.1		0.9		98.7		100.0
Mixed use and other	0.4		—		0.4		0.4		98.8		100.0
PCI - commercial real estate (1)	—		14.0		3.0		10.5		72.5		100.0
Total commercial real estate	0.5		0.4		0.3		0.7		98.1		100.0
Home equity	0.9		—		0.2		0.7		98.2		100.0
Residential real estate, including PCI	2.0		0.1		0.4		0.6		96.9		100.0
Premium finance receivables
Commercial insurance loans	0.6		0.4		0.3		0.9		97.8		100.0
Life insurance loans	—		—		0.1		0.4		99.5		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.2		0.1		0.1		0.8		98.8		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.2	%	0.2	%	0.6	%	98.6	%	100.0	%
Covered loans	4.0		4.9		0.5		3.9		86.7		100.0
Total loans, net of unearned income	0.5	%	0.2	%	0.2	%	0.6	%	98.5	%	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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As of March 31, 2016, only $19.3 million of all loans, excluding covered loans, or 0.1%, were 60 to 89 days past due and $120.5 million or 0.7%, were 30 to 59 days (or one payment) past due. As of December 31, 2015, $42.1 million of all loans, excluding covered loans, or 0.2%, were 60 to 89 days past due and $104.1 million, or 0.6%, were 30 to 59 days (or one payment) past due. Many 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 increased $10.9 million since December 31, 2015.

The Company's home equity and residential loan portfolios continue to exhibit low delinquency ratios. Home equity loans at March 31, 2016 that were current with regard to the contractual terms of the loan agreement represent 98.1% of the total home equity portfolio. Residential real estate loans, excluding PCI loans, at March 31, 2016 that were current with regards to the contractual terms of the loan agreements comprise 96.4% of total residential real estate loans outstanding.

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
	March 31,			March 31,
(Dollars in thousands)	2016			2015
Balance at beginning of period	$	84,057		$	78,677
Additions, net	12,166			8,980
Return to performing status	(2,006		)	(716		)
Payments received	(3,308		)	(4,369		)
Transfer to OREO and other repossessed assets	(2,080		)	(2,540		)
Charge-offs	(533		)	(1,801		)
Net change for niche loans (1)	1,203			3,541
Balance at end of period	$	89,499		$	81,772

(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 in Item 1 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” in this Item 2. 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 March 31, 2016, 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.

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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
(Dollars in thousands)	March 31, 2016			March 31, 2015
Allowance for loan losses at beginning of period	$	105,400		$	91,705
Provision for credit losses	8,423			6,185
Other adjustments	(78		)	(248		)
Reclassification from (to) allowance for unfunded lending-related commitments	(81		)	(113		)
Charge-offs:
Commercial	671			677
Commercial real estate	671			1,005
Home equity	1,052			584
Residential real estate	493			631
Premium finance receivables—commercial	2,480			1,263
Premium finance receivables—life insurance	—			—
Consumer and other	107			111
Total charge-offs	5,474			4,271
Recoveries:
Commercial	629			370
Commercial real estate	369			312
Home equity	48			48
Residential real estate	112			76
Premium finance receivables—commercial	787			329
Premium finance receivables—life insurance	—			—
Consumer and other	36			53
Total recoveries	1,981			1,188
Net charge-offs	(3,493		)	(3,083		)
Allowance for loan losses at period end	$	110,171		$	94,446
Allowance for unfunded lending-related commitments at period end	1,030			888
Allowance for credit losses at period end	$	111,201		$	95,334
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial	0.00		%	0.03		%
Commercial real estate	0.02			0.06
Home equity	0.52			0.30
Residential real estate	0.17			0.28
Premium finance receivables—commercial	0.29			0.16
Premium finance receivables—life insurance	—			—
Consumer and other	0.20			0.13
Total loans, net of unearned income, excluding covered loans	0.08		%	0.08		%
Net charge-offs as a percentage of the provision for credit losses	41.47		%	49.87		%
Loans at period-end, excluding covered loans	$	17,446,413		$	14,953,059
Allowance for loan losses as a percentage of loans at period end	0.63		%	0.63		%
Allowance for credit losses as a percentage of loans at period end	0.64		%	0.64		%

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 $1.0 million and $888,000 as of March 31, 2016 and March 31, 2015, respectively.

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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 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 March 31, 2016, the Company had $96.1 million of impaired loans with $50.7 million of this balance requiring $7.8 million of specific impairment reserves. At December 31, 2015, the Company had $101.3 million of impaired loans with $50.0 million of this balance requiring $6.4 million of specific impairment reserves. The most significant fluctuations in the recorded investment of impaired loans with specific impairment from December 31, 2015 to March 31, 2016 occurred within the mixed use and other commercial real estate portfolio. The recorded investment and specific impairment reserves in this portfolio decreased $2.8 million and $277,000, respectively, which was primarily the result of two notes no longer being impaired at March 31, 2016. The increase in specific impairment reserves during the period was primarily due to two loans within the home equity portfolio becoming non-performing and requiring $1.4 million of specific impairment reserves. 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” in this Item 2. 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.

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

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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.

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TDRs

At March 31, 2016, the Company had $52.6 million in loans modified in TDRs. The $52.6 million in TDRs represents 102 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 balance increased slghtly from $51.9 million representing 102 credits at December 31, 2015 and decreased from $67.2 million representing 125 credits at March 31, 2015.

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 in 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 March 31, 2016 and approximately $3.1 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 March 31, 2016, the Company was committed to lend additional funds to borrowers totaling $20,000 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:

	March 31,			December 31,			March 31,
(Dollars in thousands)	2016			2015			2015
Accruing TDRs:
Commercial	$	5,143		$	5,613		$	6,273
Commercial real estate	25,548			32,777			45,417
Residential real estate and other	4,258			4,354			2,997
Total accruing TDRs	$	34,949		$	42,744		$	54,687
Non-accrual TDRs: (1)
Commercial	$	82		$	134		$	184
Commercial real estate	14,340			5,930			8,229
Residential real estate and other	3,184			3,045			4,118
Total non-accrual TDRs	$	17,606		$	9,109		$	12,531
Total TDRs:
Commercial	$	5,225		$	5,747		$	6,457
Commercial real estate	39,888			38,707			53,646
Residential real estate and other	7,442			7,399			7,115
Total TDRs	$	52,555		$	51,853		$	67,218
Weighted-average contractual interest rate of TDRs	4.35		%	4.13		%	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 March 31, 2016 and March 31, 2015, and shows the changes in the balance during those periods:

Three Months Ended March 31, 2016 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	5,747		$	38,707		$	7,399		$	51,853
Additions during the period	42			8,521			160			8,723
Reductions:
Charge-offs	(20		)	(424		)	—			(444		)
Transferred to OREO and other repossessed assets	—			—			—			—
Removal of TDR loan status (1)	—			(4,417		)	—			(4,417		)
Payments received	(544		)	(2,499		)	(117		)	(3,160		)
Balance at period end	$	5,225		$	39,888		$	7,442		$	52,555

Three Months Ended March 31, 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	—			—			294			294
Reductions:
Charge-offs	(397		)	(1		)	(33		)	(431		)
Transferred to OREO and other repossessed assets	(562		)	(1,519		)	—			(2,081		)
Removal of TDR loan status (1)	(76		)	(8,382		)	—			(8,458		)
Payments received	(84		)	(4,075		)	(222		)	(4,381		)
Balance at period end	$	6,457		$	53,646		$	7,115		$	67,218

(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
(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Balance at beginning of period	$	43,945		$	51,880		$	45,642
Disposal/resolved	(6,766		)	(9,156		)	(6,846		)
Transfers in at fair value, less costs to sell	3,291			2,345			3,831
Transfers in from covered OREO subsequent to loss share expiration	—			69			—
Additions from acquisition	1,064			—			761
Fair value adjustments	(532		)	(1,193		)	(1,131		)
Balance at end of period	$	41,002		$	43,945		$	42,257

	Period End
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015
Residential real estate	$	11,006	$	11,322	$	7,250
Residential real estate development	2,320		2,914		2,687
Commercial real estate	27,676		29,709		32,320
Total	$	41,002	$	43,945	$	42,257

Deposits

Total deposits at March 31, 2016 were $19.2 billion,an increase of $2.3 billion, or 13%, compared to total deposits at March 31, 2015. See Note 9 to the Consolidated Financial Statements in 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 March 31, 2016:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of March 31, 2016 (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	$	39,008	$	55,793	$	149,291	$	651,559	$	895,651	0.51	%
4-6 months	165,622		43,096		—		618,340		827,058		0.75	%
7-9 months	—		40,380		—		555,172		595,552		0.78	%
10-12 months	—		21,783		—		516,014		537,797		0.79	%
13-18 months	43,836		10,977		—		565,103		619,916		0.95	%
19-24 months	2,743		6,161		—		171,296		180,200		0.92	%
24+ months	3,197		14,895		—		282,576		300,668		1.27	%
Total	$	254,406	$	193,085	$	149,291	$	3,360,060	$	3,956,842	0.78	%

(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
	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Non-interest bearing	$	4,939,746	26	%	$	4,776,977	26	%	$	3,584,452	21	%
NOW and interest bearing demand deposits	2,331,298		12		2,269,368		12		2,220,911		14
Wealth management deposits	1,591,638		9		1,500,751		8		1,287,880		8
Money market	4,109,657		22		4,067,603		22		3,726,151		23
Savings	1,743,181		9		1,693,457		9		1,537,283		9
Time certificates of deposit	3,941,559		22		4,074,867		22		4,091,282		25
Total average deposits	$	18,657,079	100	%	$	18,383,023	100	%	$	16,447,959	100	%

Total average deposits for the first quarter of 2016 were $18.7 billion, an increase of $2.2 billion, or 13%, from the first quarter of 2015. 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 $1.4 billion, or 38%, in the first quarter of 2016 compared to the first quarter of 2015.

Wealth management deposits are funds from the brokerage customers of WHI, the trust and asset management customers of the Company 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:

	March 31,						December 31,
(Dollars in thousands)	2016			2015			2015			2014			2013
Total deposits	$	19,217,071		$	16,938,769		$	18,639,634		$	16,281,844		$	14,668,789
Brokered deposits	947,910			926,387			862,026			718,986			476,139
Brokered deposits as a percentage of total deposits	4.9		%	5.5		%	4.6		%	4.4		%	3.2		%

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.

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.

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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
	March 31,		December 31,		March 31,
(Dollars in thousands)	2016		2015		2015
Federal Home Loan Bank advances	$	825,104	$	441,669	$	347,456
Other borrowings:
Notes payable	67,388		71,136		—
Short-term borrowings	55,056		65,389		53,920
Secured borrowings	116,104		114,313		122,145
Other	18,836		18,900		18,598
Total other borrowings	$	257,384	$	269,738	$	194,663
Subordinated notes	138,870		138,852		138,773
Junior subordinated debentures	257,687		268,566		249,493
Total other funding sources	$	1,479,045	$	1,118,825	$	930,385

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. FHLB advances to the banks totaled $799.5 million at March 31, 2016, compared to $853.4 million at December 31, 2015 and $406.8 million at March 31, 2015.

Notes payable balances represent the balances on a $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 March 31, 2016, the Company had a balance under the term facility of $63.7 million compared to $67.4 million at December 31, 2015 and no balance at March 31, 2015. The Company was contractually 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 March 31, 2016, December 31, 2015 and March 31, 2015, the Company had no outstanding balance on the $75.0 million revolving credit facility.

Short-term borrowings include securities sold under repurchase agreements and federal funds purchased. These borrowings totaled $47.7 million at March 31, 2016 compared to $63.9 million at December 31, 2015 and $50.1 million at March 31, 2015. Securities sold under repurchase agreements represent sweep accounts for certain customers in connection with master repurchase agreements at the banks. 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 ("Canadian Secured Borrowing"). Under the Canadian Secured Borrowing, 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 Receivables Purchase Agreement was amended in December 2015, effectively extending the maturity date from December 15, 2015 to December 15, 2017. Additionally, at that time, the unrelated third party paid an additional C$10 million, which increased the total payments to C$160 million. The proceeds received from these transactions 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 $123.0 million at March 31, 2016 compared to $115.5 million at December 31, 2015 and $118.1 million at March 31, 2015. At March 31, 2016, the interest rate of the Canadian Secured Borrowing was 1.5322%.

Other borrowings include a fixed-rate promissory note entered into in August 2012 related to an office building complex owned by the Company and non-recourse notes issued by the Company to other banks related to certain capital leases. At March 31, 2016, the fixed-rate promissory note had a balance of $18.1 million compared to $18.3 million at December 31, 2015 and $18.5 million at March 31, 2015.

At March 31, 2016, the Company had outstanding subordinated notes totaling $138.9 million compared to $138.9 million and $138.8 million outstanding at December 31, 2015 and March 31, 2015, respectively. The notes have a stated interest rate of 5.00% and mature in June 2024. These notes are stated at par adjusted for unamortized costs paid related to the issuance of this debt.

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The Company had $253.6 million of junior subordinated debentures outstanding as of March 31, 2016 compared to $268.6 million outstanding at December 31, 2015 and $249.5 million outstanding at March 31, 2015. The amounts reflected on the balance sheet represent the junior subordinated debentures issued to eleven trusts by the Company and equal the amount of the preferred and common securities issued by the trusts. The balance increased $19.1 million in 2015 as a result of the addition of the Suburban Illinois Capital Trust II and Community Financial Shares Statutory Trust II acquired as a part of the acquisitions of Suburban and CFIS, respectively. Additionally, in January 2016, the Company acquired $15.0 million of the $40.0 million of trust preferred securities issued by Wintrust Capital Trust VIII from a third-party investor. The purchase effectively extinguished $15.0 million of junior subordinated debentures related to Wintrust Capital Trust VIII and resulted in a $4.3 million gain from the early extinguishment of debt. 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. Starting in 2015, a portion of these junior subordinated debentures 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 December 31, 2015, $65.1 million and $195.4 million of the junior subordinated debentures, net of common securities, were included in the Company's Tier 1 and Tier 2 regulatory capital, respectively. At March 31, 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 in 2016, none of the junior subordinated debentures qualified as Tier 1 regulatory capital of the Company resulting in $245.5 million of the junior subordinated debentures, net of common securities, being included in the Company's Tier 2 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

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:

	March 31, 2016		December 31, 2015		March 31, 2015
Leverage ratio	8.7	%	9.1	%	9.2	%
Tier 1 capital to risk-weighted assets	9.6		10.0		10.1
Common equity Tier 1 capital to risk-weighted assets	8.4		8.4		9.1
Total capital to risk-weighted assets	12.1		12.2		12.5
Total average equity-to-total average assets(1)	10.4		10.6		10.7

(1) Based on quarterly average balances.

	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 in Item 1 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 of 2016, the Company declared a quarterly cash dividend of $0.12 per common share. In January, April, July and October of 2015, the Company declared a quarterly cash dividend of $0.11 per common share.

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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. The Company hereby incorporates by reference Note 17 of the Consolidated Financial Statements presented under Item 1 of this report in its entirety.

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 2015 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:

• difficult economic conditions have adversely affected our company and the financial services industry in general and further deterioration in economic conditions may materially adversely affect our business, financial condition, results of operations and cash flows;

• since our business is concentrated in the Chicago metropolitan and southern Wisconsin market areas, further declines in the economy of this region could adversely affect our business;

• if our allowance for loan losses is not sufficient to absorb losses that may occur in our loan portfolio, our financial condition and liquidity could suffer;

• a significant portion of our loan portfolio is comprised of commercial loans, the repayment of which is largely dependent upon the financial success and economic viability of the borrower;

• a substantial portion of our loan portfolio is secured by real estate, in particular commercial real estate. Deterioration in the real estate markets could lead to additional losses, which could have a material adverse effect on our financial condition and results of operations;

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• any inaccurate assumptions in our analytical and forecasting models could cause us to miscalculate our projected revenue or losses, which could adversely affect our financial condition;

• unanticipated changes in prevailing interest rates and the effects of changing regulation could adversely affect our net interest income, which is our largest source of income;

• our liquidity position may be negatively impacted if economic conditions continue to suffer;

• the financial services industry is very competitive, and if we are not able to compete effectively, we may lose market share and our business could suffer;

• if we are unable to compete effectively, we will lose market share and income from deposits, loans and other products may be reduced. This could adversely affect our profitability and have a material adverse effect on our business, financial condition and results of operations;

• if we are unable to continue to identify favorable acquisitions or successfully integrate our acquisitions, our growth may be limited and our results of operations could suffer;

• our participation in FDIC-assisted acquisitions may present additional risks to our financial condition and results of operations;

• an actual or perceived reduction in our financial strength may cause others to reduce or cease doing business with us, which could result in a decrease in our net interest income and fee revenues;

• if our growth requires us to raise additional capital, that capital may not be available when it is needed or the cost of that capital may be very high;

• disruption in the financial markets could result in lower fair values for our investment securities portfolio;

• our controls and procedures may fail or be circumvented;

• new lines of business and new products and services are essential to our ability to compete but may subject us to additional risks;

• failures of our information technology systems may adversely affect our operations;

• failures by or of our vendors may adversely affect our operations;

• we issue debit cards, and debit card transactions pose a particular cybersecurity risk that is outside of our control;

• we depend on the accuracy and completeness of information we receive about our customers and counterparties to make credit decisions;

• if we are unable to attract and retain experienced and qualified personnel, our ability to provide high quality service will be diminished, we may lose key customer relationships, and our results of operations may suffer;

• we are subject to environmental liability risk associated with lending activities;

• we are subject to claims and legal actions which could negatively affect our results of operations or financial condition;

• losses incurred in connection with actual or projected repurchases and indemnification payments related to mortgages that we have sold into the secondary market may exceed our financial statement reserves and we may be required to increase such reserves in the future. Increases to our reserves and losses incurred in connection with actual loan repurchases and indemnification payments could have a material adverse effect on our business, financial condition, results of operations or cash flows;

• consumers may decide not to use banks to complete their financial transactions, which could adversely affect our business and results of operations;

• we may be adversely impacted by the soundness of other financial institutions;

• de novo operations often involve significant expenses and delayed returns and may negatively impact Wintrust's profitability;

• we are subject to examinations and challenges by tax authorities, and changes in federal and state tax laws and changes in interpretation of existing laws can impact our financial results;

• changes in accounting policies or accounting standards could materially adversely affect how we report our financial results and financial condition;

• we are a bank holding company, and our sources of funds, including to pay dividends, are limited;

• anti-takeover provisions could negatively impact our shareholders;

• if we fail to meet our regulatory capital ratios, we may be forced to raise capital or sell assets;

• if our credit rating is lowered, our financing costs could increase;

• changes in the United States’ monetary policy may restrict our ability to conduct our business in a profitable manner;

• legislative and regulatory actions taken now or in the future regarding the financial services industry may significantly increase our costs or limit our ability to conduct our business in a profitable manner;

• financial reform legislation and increased regulatory rigor around mortgage-related issues may reduce our ability to market our products to consumers and may limit our ability to profitably operate our mortgage business;

• federal, state and local consumer lending laws may restrict our ability to originate certain mortgage loans or increase our risk of liability with respect to such loans and could increase our cost of doing business;

• regulatory initiatives regarding bank capital requirements may require heightened capital;

• our FDIC insurance premiums may increase, which could negatively impact our results of operations;

• non-compliance with the USA PATRIOT Act, Bank Secrecy Act or other laws and regulations could result in fines or sanctions;

• our premium finance business may involve a higher risk of delinquency or collection than our other lending operations, and could expose us to losses;

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• widespread financial difficulties or credit downgrades among commercial and life insurance providers could lessen the value of the collateral securing our premium finance loans and impair the financial condition and liquidity of FIFC and FIFC Canada;

• proposed regulatory changes could significantly reduce loan volume and impair the financial condition of FIFC; and

• our wealth management business in general, and WHI's brokerage operation, in particular, exposes us to certain risks associated with the securities industry.

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 or events that arise after the date the forward-looking statement was made. 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 March 31, 2016, December 31, 2015 and March 31, 2015 is as follows:

Static Shock Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
March 31, 2016	16.4	%	8.9	%	(8.7	)%
December 31, 2015	16.1	%	8.7	%	(10.6	)%
March 31, 2015	16.7	%	8.4	%	(9.3	)%

Ramp Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
March 31, 2016	7.5	%	3.7	%	(3.7	)%
December 31, 2015	7.3	%	3.9	%	(4.4	)%
March 31, 2015	6.8	%	3.0	%	(3.7	)%

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

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certain mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of mortgage loans to third party investors. See Note 13 of the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s derivative financial instruments.

During the first quarter of 2016, 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 March 31, 2016.

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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.

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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 January 15, 2015, Lehman Brothers Holdings, Inc. ("Lehman Holdings") 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. The demand was the precursor for triggering the alternative dispute resolution process mandated by the U.S. Bankruptcy Court for the Southern District of New York. Lehman Holdings triggered the mandatory alternative dispute resolution process on October 16, 2015. On February 3, 2016, following a ruling by the federal Court of Appeals for the Tenth Circuit that was adverse to Lehman Holdings on the statute of limitations that is applicable to similar loan purchase claims, Lehman Holdings filed a complaint against Wintrust Mortgage and 150 other entities from which it had purchased loans in the U.S. Bankruptcy Court for the Southern District of New York. The mandatory mediation was held on March 16, 2016, but did not result in a consensual resolution of a dispute. Wintrust Mortgage must respond to the complaint by May 31, 2016.

The Company has reserved an amount for the Lehman Holdings action 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.

On August 28, 2015, Wintrust Mortgage received a demand from RFC Liquidating Trust asserting that that Wintrust Mortgage is liable to it for losses arising from loans sold by Wintrust Mortgage or its predecessors to Residential Funding Company LLC and/or related entities. No litigation has been initiated and the range of liability is not reasonably estimable at this time and it is not foreseeable when sufficient information will become available to provide a basis for recording a reserve, should a reserve ultimately be required.

On August 13, 2015, BMO Harris Financial Advisors (“BHFA”) filed an arbitration demand with the FINRA seeking damages and a permanent injunction and a complaint with the Circuit Court for Cook County, Illinois seeking a temporary restraining order against one of its former financial advisors and a current financial advisor with WHI. A narrow and limited temporary injunction was entered and the matter was referred to FINRA for arbitration. In November 2015, BHFA added WHI as a co-defendant in the arbitration action, alleging that WHI tortiously interfered with BHFA’s contract with its former financial advisor. As discovery is still in the preliminary stages, the range of liability is not reasonably estimable at this time and it is not foreseeable when sufficient information will become available to provide a basis for recording a reserve, should a reserve ultimately be required. A hearing on the merits has been set for September 12 - 15, 2016.

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, 2015.

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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 March 31, 2016. There is currently no authorization to repurchase shares of outstanding common stock.

Item 6: Exhibits:

(a) Exhibits

3.1	Amended and Restated By-Laws of Wintrust Financial Corporation  (incorporated by reference to Exhibit 3.2 of the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on April 8, 2016)
10.1	Form of Performance Award Agreement - Cash Settled under the Company's 2015 Stock Incentive Plan
10.2	Form of Nonqualified Stock Option Agreement under the Company's 2015 Stock Incentive Plan
10.3	Form of Performance Award Agreement - Share-Settled under the Company's 2015 Stock Incentive Plan
10.4	Form of Performance Award Agreement - Cash Settled under the Company's 2015 Stock Incentive Plan
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 March 31, 2016, 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

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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:	May 9, 2016	/s/ DAVID L. STOEHR
		David L. Stoehr
		Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

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EX-10.1

WINTRUST FINANCIAL CORPORATIONPERFORMANCE AWARD AGREEMENT – CASH SETTLED

This Performance Award Agreement (the “Agreement”) is dated as of «Date» (the “Grant Date”), by and between Wintrust Financial Corporation, an Illinois corporation (the “Company”), and «First_Name» «Last_Name» (the “Participant”) and is governed by the terms of the Wintrust Financial Corporation Long-Term Incentive Program (the “Program”), which was adopted by the Compensation Committee (the “Committee”) of the Board of Directors of the Company under the Wintrust Financial Corporation 2015 Stock Incentive Plan (the “Plan”). Capitalized terms not defined herein shall have the meanings specified in the Program or Plan.

1.    Award.

(a)     General Terms of Award. Subject to the terms of this Agreement, the Program and the Plan, the Participant is hereby granted a target performance award equal to $«Target_Cash_» (the “Performance Award”); provided, however, that the actual amount of the Performance Award payable to the Participant shall be determined based upon the satisfaction of the Performance Criteria in accordance with the terms of this Agreement, including Exhibit A hereto. It is understood that this Agreement is subject to the terms of the Program and Plan, to which reference is hereby made for a more detailed description of the terms to which the Performance Award is subject and by which reference the Program and Plan are incorporated herein. The Program and the Plan shall control in the event there is any conflict between the Plan or Program and this Agreement and on such matters as are not contained in this Agreement.

(b)    Acceptance of Agreement. The Performance Award shall be null and void unless the Participant shall accept this Agreement by executing it in the space provided below and returning such execution copy to the Company within ninety (90) days following the Participant’s receipt of this Agreement.

2.    Satisfaction of Performance Criteria. The value of the Performance Award at the end of the Performance Period (as defined in Exhibit A) shall be determined as described in Exhibit A to this Agreement, which Exhibit A is incorporated into and forms a part of this Agreement.

3.    Vesting and Termination of Employment.

(a)    Performance-Based Vesting Conditions. Except as otherwise provided in this Section 3, the Participant shall be eligible to receive the value of the Performance Award determined pursuant to Exhibit A only if the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Performance Award is settled pursuant to Section 6 of this Agreement.

(b)    Termination by Reason of Death, Permanent Disability or Retirement. In the event the employment of the Participant is terminated by reason of the Participant’s death,

1

Permanent Disability or Retirement prior to the date on which the Performance Award is paid pursuant to Section 6 of this Agreement, then the Participant shall be entitled to a prorated Performance Award, with such prorated award equal to the value of the Performance Award determined based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was employed during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period.

For purposes of this Agreement:

(i) Permanent Disability shall mean any mental or physical illness, disability or incapacity that renders the Participant unable to perform his/her duties where a) such Permanent Disability has been determined to exist by a physician selected by the Company or b) the Company has reasonably determined, based on such physician’s advice, that such disability will continue for 180 days or more within any 365-day period, of which at least 90 days are consecutive. The Participant shall cooperate in all respects with the Company if a question arises as to whether he/she has become disabled (including, without limitation, submitting to an examination by a physician or other health care specialist selected by the Company and authorizing such physician or other health care specialist to discuss the Participant’s condition with the Company).

(ii) Retirement shall mean the termination of a Participant’s employment for any reason other than death, disability or termination for Cause if it occurs on or after age 65 or on or after age 55 and, as of the date of termination, the sum of the Participant’s attained age as of his/her most recent birthday and the full and completed years of service with the Company (including continuous years of service, if any, with a Subsidiary as of the date such Subsidiary was acquired by the Company) equals or exceeds 75.

(c)    Termination for any Other Reason. In the event the employment of the Participant is terminated for any reason other than the Participant’s death, Permanent Disability or Retirement prior to the date on which the Performance Award is settled pursuant to Section 6, then the Participant’s Performance Award shall be immediately forfeited by the Participant upon such termination of employment.

(d)    Change of Control. Upon (i) a Change of Control or (ii) the termination of the Participant’s employment by the Company without Cause or by the Participant due to a Constructive Termination within 18 months following the occurrence of a Change of Control, the Performance Award shall be governed by the terms of Sections 12(a) and 12(b) of the Plan, as applicable; provided, however, that in the event the Performance Award shall vest pursuant to

2

Section 12 of the Plan, such Performance Award shall be settled within thirty (30) days following the effective date of the Change of Control in the case of vesting pursuant to Section 12(a) of the Plan or the Participant’s termination of employment in the case of vesting pursuant to Section 12(b) of the Plan; providedfurther, that if the Change of Control is not a “change in control event,” within the meaning of Section 409A of the Code, then such Performance Award shall be settled at the same time as set forth in Section 6.

(e)    Leave of Absence. The Participant shall not be deemed to have terminated employment during any paid leave of absence, provided that the Participant continues to remain an employee of the Company or one of its Affiliates. During any Company-approved unpaid leave of absence, the Performance Award shall be prorated, with such prorated award equal to the value of the Performance Award at the end of the Performance Period based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was an active employee and on the Company’s payroll during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period, provided that the Participant continues to remain an employee of the Company or one of its Affiliates.

4.    Non-Solicitation. The Participant understands and acknowledges that the Company and its Affiliates (collectively, “Wintrust”), has expended and continues to expend significant time and resources in recruiting, training and retaining Participant and its employees and in the development of valuable business relationships with its consultants and agents, the loss of which would cause significant and irreparable harm to Wintrust. During Participant’s employment with Wintrust and for twelve (12) months thereafter, Participant agrees and covenants not to directly or indirectly hire, solicit, induce or attempt to hire, solicit or induce any employee, consultant, or agent of Wintrust (i) to terminate such person’s employment or association with Wintrust or (ii) to become employed by or serve in any capacity by a bank or other financial institution which operates or is planned to operate at any facility which is located within a ten mile radius of any principal office or branch office of Wintrust. This restriction shall not prohibit Participant from hiring a Wintrust employee, consultant or agent in response to a general solicitation to the public. The restrictive covenants in this Agreement are in addition to and do not supersede the restrictive covenants in any other agreement Participant may have with Wintrust.

5.    Remedies. Participant acknowledges that compliance with the terms of this Agreement is necessary to protect Wintrust’s employment and business relationships and Wintrust’s goodwill and that any breach by Participant of this Agreement shall cause continuing and irreparable injury to Wintrust for which money damages would not be an adequate remedy. Participant acknowledges that the Company and its Affiliates are all intended beneficiaries of this Agreement. Participant acknowledges that Wintrust shall be, in addition to any other rights or remedies it may have, entitled to injunctive relieve for any breach by Participant of any part of this Agreement. This Agreement shall not in any way limit the remedies available in law or equity to Wintrust.

6. Payment. The Performance Award shall be paid to the Participant in a lump sum cash payment no later than the March 15th occurring immediately after the last day of the

3

Performance Period; provided that and except as otherwise provided for in this Agreement, the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Performance Award is settled pursuant to this Section 6. Notwithstanding any other provision of the Agreement to the contrary, no payment shall occur unless and until the Committee has certified that the applicable Performance Criteria have been satisfied, which certification shall occur within 60 days following the last day of the Performance Period.

7.    Withholding. The Company shall have the power and the right to deduct or withhold, or require the Participant or the Participant’s beneficiary to remit to the Company, an amount sufficient to satisfy federal, state, and local taxes, domestic or foreign, required by law or regulation to be withheld with respect to any taxable event arising as a result of this Agreement.

8.    Clawback Provision. Participant acknowledges that Participant has read the Company’s Clawback Policy. In consideration of the grant of the Performance Award, the Participant agrees to abide by the Company’s Clawback Policy and any determinations of the Board pursuant to the Clawback Policy. Without limiting the foregoing, and notwithstanding any provision of this Agreement to the contrary, the Participant agrees that the Company shall have the right to require the Participant to repay the value of the Performance Award received by the Participant pursuant to this Agreement, as may be required by law (including, without limitation, the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder) or as a result of: (i) a financial restatement if the value of the Performance Award received was predicated upon achieving certain Performance Criteria that were subsequently the subject of such financial restatement; (ii) the Committee determined that the Participant engaged in intentional misconduct that caused the need for such restatement; and (iii) a lower Performance Award would have been paid based on the restated results. This Section 8 shall survive the termination of the Participant’s employment for any reason. The foregoing remedy is in addition to and separate from any other relief available to the Company due to the Participant’s misconduct or fraud. Any determination by the Committee with respect to the foregoing shall be final, conclusive and binding upon the Participant and all persons claiming through the Participant.

9.    Administration. The authority to administer and interpret this Agreement shall be vested in the Committee, and the Committee shall have all the powers with respect to this Agreement as it has with respect to the Program and Plan. Any dispute or disagreement which shall arise under, as a result of, or in any way shall relate to the interpretation or construction or this Agreement shall be determined by the Committee, and any such determination shall be final, binding and conclusive for all purposes.

10.    Transferability. The Performance Award shall not be subject to execution, collateral assignment, attachment or similar process, unless otherwise permitted by the Committee under the terms of the Program or Plan. Any such attempted action or other disposition of the Performance Award contrary to the provisions of the Program or Plan shall be null and void, and in such event the Company shall have the right to terminate the Performance Award. Such termination shall not prejudice any rights or remedies which the Company or an Affiliate may have under this Agreement or otherwise.

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11.    Notices. Each notice relating to this Agreement shall be in writing and delivered in person or by registered mail to Wintrust Financial Corporation, 9700 West Higgins Road, Rosemont, Illinois 60018, Attn: General Counsel, or at such other address designated by the Company. All notices to the Participant or other person or persons succeeding to the Participant’s rights under this Agreement shall be delivered to the Participant or such other person or persons at the Participant’s address as it then appears on the Company’s records.

12.    Governing Law. This agreement shall be governed by laws of the State of Illinois and shall inure to the benefit of and be binding upon the Company and its successors and assigns and the Participant and the Participant’s heirs, executors, administrators and successors.

13.    Section 409A. The Agreement is intended to comply with the requirements of Section 409A of the Code, and shall be interpreted and construed consistently with such intent; provided, however, that in no event shall the Company or any of its directors, officers, employees or advisors be responsible for any such additional tax, interest or related tax penalties that may be imposed under Section 409A of the Code. Notwithstanding any other provision in the Agreement, Program or Plan, if a Participant is a “specified employee,” as defined in Section 409A of the Code, as of the date of the Participant’s “separation from service,” as defined in Section 409A of the Code, then to the extent any amount payable to the Participant (i) constitutes the payment of nonqualified deferred compensation, within the meaning of Section 409A of the Code, (ii) is payable upon the Participant’s separation from service and (iii) under the terms of this Program would be payable prior to the six-month anniversary of the Participant’s separation from service, such payment shall be delayed until the earlier to occur of (a) the first business day following the six-month anniversary of the separation from service and (b) the date of the Participant’s death.

5

Wintrust Financial Corporation by:

Edward J. Wehmer, President and Chief Executive Officer Date

Participant:

«First_Name» «Last_Name» Date

Attest

David A. Dykstra Date

6

Exhibit A

Subject to the terms and conditions of the Agreement, the Performance Award shall be determined as described in this Exhibit A based upon the level of performance achieved over the period commencing on January 1, 2016 and ending on December 31, 2018 (“Performance Period”) as determined in accordance with the following schedule; provided, however, that as an initial, unconditional performance goal, the settlement of a performance-based award shall be subject to the Company’s attainment of a Return on Average Assets equal to 40 basis points over the applicable Performance Period. In the event the Company fails to achieve the ROAA performance goal over the applicable Performance Period, no performance-based awards shall be paid under the LTIP with respect to such Performance Period.

If the initial performance goal described above is achieved, the Compensation Committee will determine the final amount earned, based on cumulative Adjusted Earnings Per Share goals established by the Compensation Committee. The Compensation Committee may adjust these goals or the Company’s performance results to reflect any extraordinary, unusual or unanticipated events. To the extent defined in the Company’s audited financial statements, each performance measure (or component thereof) shall be calculated in accordance with the methodology used for determining such measure for purposes of the Company’s audited financial results.

Performance Measures
Performance Level	Cumulative Adjusted EPS over 3 Year Performance Period	Total Payout as a % of Target Opportunity
Maximum	$13.45	150%
	$13.22	140%
	$12.98	130%
	$12.75	120%
	$12.52	110%
Target	$12.30	100%
	$11.75	90%
	$11.21	80%
	$10.70	70%
	$10.20	60%
Threshold	$10.00	50%
<Threshold	<$10.00	0%

Note: Amounts are based on diluted EPS as adjusted for exclusion of acquisition related charges as determined by the Compensation Committee.

CH1 6162573v.5

EX-10.2

WINTRUST FINANCIAL CORPORATION

NONQUALIFIED STOCK OPTION AGREEMENT

This Nonqualified Stock Option Agreement (the “Agreement”) is dated as of «Date» (the “Grant Date”), by and between Wintrust Financial Corporation, an Illinois corporation (the “Company”), and «First_Name» «Last_Name» (the “Participant”) and is governed by the terms of the Wintrust Financial Corporation Long-Term Incentive Program (the “Program”), which was adopted by the Compensation Committee (the “Committee”) of the Board of Directors of the Company under the Wintrust Financial Corporation 2015 Stock Incentive Plan (the “Plan”). Capitalized terms not defined herein shall have the meanings specified in the Program or the Plan.

1.    Award.

(a)     Subject to the terms of this Agreement, the Program and the Plan, the Company hereby grants to the Participant an Option to purchase an aggregate of «Target_Time_Vested_Stock_Options_Units» shares of the Company’s common stock, no par value (the “Common Stock”), at an exercise price of $XXX per share (the “Exercise Price”). The number of shares of Common Stock and the Exercise Price shall be subject to adjustment as provided in the Plan. It is understood that this Agreement is subject to the terms of the Program and Plan, to which reference is hereby made for a more detailed description of the terms to which the Option is subject and by which reference the Program and Plan are incorporated herein. The Program and the Plan shall control in the event there is any conflict between the Plan or Program and this Agreement and on such matters as are not contained in this Agreement.

(b)    The Option shall be null and void unless the Participant shall accept this Agreement by executing it in the space provided below and returning such execution copy to the Company within ninety (90) days following the Participant’s receipt of this Agreement.

2.    Vesting and Exercise. (a) Subject to the terms of this Agreement, the Option shall vest and become exercisable as follows:

Date                            33.3%

Date                            33.3%

Date                            33.4%

(b) Unless otherwise permitted by the Committee under the terms of the Program or Plan, during the lifetime of the Participant, the Option may be exercised only by the Participant. Subject to the terms and conditions of this Agreement, the Option shall be exercisable by delivery of written notice of exercise accompanied by payment of the Exercise Price and any applicable tax withholding either (i) in cash, (ii) by delivery to the Company (either actual delivery or by attestation procedures established by the Company) of shares of Common Stock having an aggregate Fair Market Value, determined as of the date of exercise, equal to the aggregate purchase price and taxes payable pursuant to the Option by reason of such exercise, (iii) by authorizing the Company to withhold whole shares of Common Stock which would otherwise be delivered having an aggregate Fair Market Value, determined as of the date of

1

exercise, equal to the amount necessary to satisfy such obligation, (iv) except as may be prohibited by applicable law, in cash by a broker-dealer acceptable to the Company to whom Participant has submitted an irrevocable notice of exercise or (v) by a combination of (i), (ii) and (iii). Any fraction of a share of Common Stock which would be required to pay such exercise price and tax withholding shall be disregarded and the remaining amount due shall be paid in cash by the Participant.

(c)    Upon (i) a Change of Control or (ii) the termination of the Participant’s employment by the Company without Cause or by the Participant due to a Constructive Termination within 18 months following the occurrence of a Change of Control, the Option shall be governed by the terms of Sections 12(a) and 12(b) of the Plan, as applicable.

(d)    Unless earlier terminated hereunder or under the Plan, the Option shall expire on the seventh anniversary of the Grant Date (the “Expiration Date”).

3.    Termination of Employment. The Option shall be vested and exercisable following a termination of the Participant’s employment according to the following terms and conditions:

(a)    Termination by Reason of Death or Permanent Disability. In the event the employment of the Participant is terminated by reason of the Participant’s death or Permanent Disability, then the Option shall be 100% vested upon the effective date of such termination of employment and the Option may thereafter be exercised by the Participant or the Participant’s executor, administrator, legal representative, guardian or similar person until and including the earlier to occur of (i) the date which is one year after the date of such termination of employment and (ii) the Expiration Date.

For purposes of this Agreement, “Permanent Disability” shall mean any mental or physical illness, disability or incapacity that renders the Participant unable to perform his/her duties where a) such Permanent Disability has been determined to exist by a physician selected by the Company or b) the Company has reasonably determined, based on such physician’s advice, that such disability will continue for 180 days or more within any 365-day period, of which at least 90 days are consecutive. The Participant shall cooperate in all respects with the Company if a question arises as to whether he/she has become disabled (including, without limitation, submitting to an examination by a physician or other health care specialist selected by the Company and authorizing such physician or other health care specialist to discuss the Participant’s condition with the Company).

(b)    Termination by Reason of Retirement. In the event the employment of the Participant is terminated by reason of Retirement, then the Option, to the extent vested on the date of such termination of employment, may thereafter be exercised by the Participant until and including the earlier to occur of (i) the date which is one year after the date of such termination of employment and (ii) the Expiration Date. The portion of the Option that was not vested immediately prior to such termination of employment shall terminate immediately upon such termination of employment.

2

For purposes of this Agreement, “Retirement” shall mean the termination of a Participant’s employment for any reason other than death, disability or termination for Cause if it occurs on or after age 65 or on or after age 55 and, as of the date of termination, the sum of the Participant’s attained age as of his/her most recent birthday and the full and completed years of service with the Company (including continuous years of service, if any, with a subsidiary as of the date such subsidiary was acquired by the Company) equals or exceeds 75.

(c)    Termination by the Company without Cause or Voluntary Termination by the Participant. In the event the employment of the Participant is terminated by reason of the Company’s termination of the Participant’s employment without Cause or the Participant’s voluntary termination of employment for any reason other than due to death, Permanent Disability or Retirement, then the Option, to the extent vested on the date of such termination of employment, may thereafter be exercised by the Participant until and including the earlier to occur of (i) the date which is 90 days after the date of such termination of employment and (ii) the Expiration Date. The portion of the Option that was not vested immediately prior to such termination of employment shall terminate immediately upon such termination of employment.

(d)    Termination by the Company for Cause. In the event the employment of the Participant is terminated by the Company for Cause, then the Option, whether or not vested, shall terminate immediately upon such termination of employment.

(e)    Leave of Absence. During any paid or Company-approved unpaid leave of absence, the Option shall continue to vest during such leave of absence, provided that the Participant continues to remain an employee of the Company or one of its Affiliates.

4.    Non-Solicitation. The Participant understands and acknowledges that the Company and its Affiliates (collectively, “Wintrust”), has expended and continues to expend significant time and resources in recruiting, training and retaining Participant and its employees and in the development of valuable business relationships with its consultants and agents, the loss of which would cause significant and irreparable harm to Wintrust. During Participant’s employment with Wintrust and for twelve (12) months thereafter, Participant agrees and covenants not to directly or indirectly hire, solicit, induce or attempt to hire, solicit or induce any employee, consultant, or agent of Wintrust (i) to terminate such person’s employment or association with Wintrust or (ii) to become employed by or serve in any capacity by a bank or other financial institution which operates or is planned to operate at any facility which is located within a ten mile radius of any principal office or branch office of Wintrust. This restriction shall not prohibit Participant from hiring a Wintrust employee, consultant or agent in response to a general solicitation to the public. The restrictive covenants in this Agreement are in addition to and do not supersede the restrictive covenants in any other agreement Participant may have with Wintrust.

5.    Remedies. Participant acknowledges that compliance with the terms of this Agreement is necessary to protect Wintrust’s employment and business relationships and Wintrust’s goodwill and that any breach by Participant of this Agreement shall cause continuing and irreparable injury to Wintrust for which money damages would not be an adequate remedy. Participant acknowledges that the Company and its Affiliates are all intended beneficiaries of

3

this Agreement. Participant acknowledges that Wintrust shall be, in addition to any other rights or remedies it may have, entitled to injunctive relieve for any breach by Participant of any part of this Agreement. This Agreement shall not in any way limit the remedies available in law or equity to Wintrust.

6.    Transferability. The Option shall not be subject to execution, collateral assignment, attachment or similar process, unless otherwise permitted by the Committee under the terms of the Program or Plan. Any such attempted action or other disposition of the Option contrary to the provisions of the Program or Plan shall be null and void, and in such event the Company shall have the right to terminate the Option. Such termination shall not prejudice any rights or remedies which the Company or an Affiliate may have under this Agreement or otherwise.

7. Rights as a Shareholder. The Participant shall not be deemed for any purpose to be a shareholder of the Company with respect to any of the shares of Common Stock subject to the Option unless and until such shares are purchased and issued upon the exercise of the Option, in whole or in part, and the Participant becomes a shareholder of record with respect to such issued shares.

8.    Clawback Provision. Participant acknowledges that Participant has read the Company’s Clawback Policy. In consideration of the grant of the Option, the Participant agrees to abide by the Company’s Clawback Policy and any determinations of the Board pursuant to the Clawback Policy. Without limiting the foregoing, and notwithstanding any provision of this Agreement to the contrary, the Participant agrees that the Company shall have the right to require the Participant to repay the value of the Option as may be required by law (including, without limitation, the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder). This Section 8 shall survive the termination of the Participant’s employment for any reason. The foregoing remedy is in addition to and separate from any other relief available to the Company due to the Participant’s misconduct or fraud. Any determination by the Committee with respect to the foregoing shall be final, conclusive and binding upon the Participant and all persons claiming through the Participant.

9.    Notices. Each notice relating to this Agreement shall be in writing and delivered in person or by registered mail to Wintrust Financial Corporation, 9700 West Higgins Road, Rosemont, IL 60018, Attn: General Counsel, or at such other address designated by the Company. All notices to the Participant or other person or persons then entitled to exercise the Option shall be delivered to the Participant or such other person or persons at the Participant’s address as it then appears on the Company’s records.

10.    Administration. Any dispute or disagreement which shall arise under, as a result of, or in any way shall relate to the interpretation or construction or this Agreement shall be determined by the Committee or by the Board of Directors of the Company (or any successor corporation), and any such determination shall be final, binding and conclusive for all purposes.

11.    Governing Law. This agreement shall be governed by laws of the State of Illinois and shall inure to the benefit of and be binding upon the Company and its successors and assigns and the Participant and the Participant’s heirs, executors, administrators and successors.

4

Wintrust Financial Corporation by:

Edward J. Wehmer, President and Chief Executive Officer Date

Participant:

«First_Name» «Last_Name» Date

Attest

David A. Dykstra Date

5

EX-10.3

WINTRUST FINANCIAL CORPORATIONPERFORMANCE AWARD AGREEMENT – SHARE-SETTLED

This Performance Award Agreement (the “Agreement”) is dated as of «Date» (the “Grant Date”), by and between Wintrust Financial Corporation, an Illinois corporation (the “Company”), and «First_Name» «Last_Name» (the “Participant”) and is governed by the terms of the Wintrust Financial Corporation Long-Term Incentive Program (the “Program”), which was adopted by the Compensation Committee (the “Committee”) of the Board of Directors of the Company under the Wintrust Financial Corporation 2015 Stock Incentive Plan (the “Plan”). Capitalized terms not defined herein shall have the meanings specified in the Program or Plan.

1.    Award.

(a)    General Terms of Award. Subject to the terms of this Agreement, the Program and the Plan, the Participant is hereby granted a target performance award representing the right to receive «Target_Performance_Based_Restricted_Sto1» shares of the Company’s common stock, no par value (the “Common Stock”) (the “Award”); provided, however, that the number of shares of Common Stock to be issued to the Participant shall be determined based upon the satisfaction of the Performance Criteria in accordance with the terms of this Agreement, including Exhibit A hereto. It is understood that this Agreement is subject to the terms of the Program and Plan, to which reference is hereby made for a more detailed description of the terms to which the Award is subject and by which reference the Program and Plan are incorporated herein. The Program and the Plan shall control in the event there is any conflict between the Plan or Program and this Agreement and on such matters as are not contained in this Agreement.

(b)    Acceptance of Agreement. The Award shall be null and void unless the Participant shall accept this Agreement by executing it in the space provided below and returning such execution copy to the Company within ninety (90) days following the Participant’s receipt of this Agreement.

2.    Satisfaction of Performance Criteria. The number of shares of Common Stock to be issued to the Participant at the end of the Performance Period (as defined in Exhibit A) shall be determined as described in Exhibit A to this Agreement, which Exhibit A is incorporated into and forms a part of this Agreement.

3.    Vesting and Termination of Employment.

(a)    Performance-Based Vesting Conditions. Except as otherwise provided in this Section 3, the Participant shall be eligible to receive the number of shares of Common Stock determined pursuant to Exhibit A only if the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Award is settled pursuant to Section 6 of this Agreement.

(b)    Termination by Reason of Death, Permanent Disability or Retirement. In the event the employment of the Participant is terminated by reason of the Participant’s death, Permanent Disability or Retirement prior to the date on which the Award is settled pursuant to Section 6 of this Agreement, then the Participant shall be entitled to a prorated Award, with such prorated award equal to the number of shares of Common Stock determined based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was employed during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period.

For purposes of this Agreement:

(i) Permanent Disability shall mean any mental or physical illness, disability or incapacity that renders the Participant unable to perform his/her duties where a) such Permanent Disability has been determined to exist by a physician selected by the Company or b) the Company has reasonably determined, based on such physician’s advice, that such disability will continue for 180 days or more within any 365-day period, of which at least 90 days are consecutive. The Participant shall cooperate in all respects with the Company if a question arises as to whether he/she has become disabled (including, without limitation, submitting to an examination by a physician or other health care specialist selected by the Company and authorizing such physician or other health care specialist to discuss the Participant’s condition with the Company).

(ii) Retirement shall mean the termination of a Participant’s employment for any reason other than death, disability or termination for Cause if it occurs on or after age 65 or on or after age 55 and, as of the date of termination, the sum of the Participant’s attained age as of his/her most recent birthday and the full and completed years of service with the Company (including continuous years of service, if any, with a Subsidiary as of the date such Subsidiary was acquired by the Company) equals or exceeds 75.

(c)    Termination for any Other Reason. In the event the employment of the Participant is terminated for any reason other than the Participant’s death, Permanent Disability or Retirement prior to the date on which the Award is settled pursuant to Section 6, then the Participant’s Award shall be immediately forfeited by the Participant upon such termination of employment.

(d)    Change of Control. Upon (i) a Change of Control or (ii) the termination of the Participant’s employment by the Company without Cause or by the Participant due to a Constructive Termination within 18 months following the occurrence of a Change of Control, the

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Award shall be governed by the terms of Sections 12(a) and 12(b) of the Plan, as applicable; provided, however, that in the event the Award shall vest pursuant to Section 12 of the Plan, such Award shall be settled within thirty (30) days following the effective date of the Change of Control in the case of vesting pursuant to Section 12(a) of the Plan or the Participant’s termination of employment in the case of vesting pursuant to Section 12(b) of the Plan; providedfurther, that if the Change of Control is not a “change in control event,” within the meaning of Section 409A of the Code, then such Award shall be settled at the same time as set forth in Section 6.

(e)    Leave of Absence. The Participant shall not be deemed to have terminated employment during any paid leave of absence, provided that the Participant continues to remain an employee of the Company or one of its Affiliates. During any Company-approved unpaid leave of absence, the Award shall be prorated, with such prorated award equal to the number of shares of Common Stock determined based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was an active employee and on the Company’s payroll during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period, provided that the Participant continues to remain an employee of the Company or one of its Affiliates.

4.    Non-Solicitation. The Participant understands and acknowledges that the Company and its Affiliates (collectively, “Wintrust”), has expended and continues to expend significant time and resources in recruiting, training and retaining Participant and its employees and in the development of valuable business relationships with its consultants and agents, the loss of which would cause significant and irreparable harm to Wintrust. During Participant’s employment with Wintrust and for twelve (12) months thereafter, Participant agrees and covenants not to directly or indirectly hire, solicit, induce or attempt to hire, solicit or induce any employee, consultant, or agent of Wintrust (i) to terminate such person’s employment or association with Wintrust or (ii) to become employed by or serve in any capacity by a bank or other financial institution which operates or is planned to operate at any facility which is located within a ten mile radius of any principal office or branch office of Wintrust. This restriction shall not prohibit Participant from hiring a Wintrust employee, consultant or agent in response to a general solicitation to the public. The restrictive covenants in this Agreement are in addition to and do not supersede the restrictive covenants in any other agreement Participant may have with Wintrust.

5.    Remedies. Participant acknowledges that compliance with the terms of this Agreement is necessary to protect Wintrust’s employment and business relationships and Wintrust’s goodwill and that any breach by Participant of this Agreement shall cause continuing and irreparable injury to Wintrust for which money damages would not be an adequate remedy. Participant acknowledges that the Company and its Affiliates are all intended beneficiaries of this Agreement. Participant acknowledges that Wintrust shall be, in addition to any other rights or remedies it may have, entitled to injunctive relieve for any breach by Participant of any part of this Agreement. This Agreement shall not in any way limit the remedies available in law or equity to Wintrust.

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6.    Settlement of Award. No later than the March 15th occurring immediately after the last day of the Performance Period, the Company shall issue or transfer to the Participant the number of shares of Common Stock determined pursuant to Exhibit A; provided that and except as otherwise provided for in this Agreement, the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Award is settled pursuant to this Section 6. Notwithstanding any other provision in the Agreement to the contrary, the Company shall not issue or transfer any shares of Common Stock subject to the Award, unless and until the Committee has certified that the applicable Performance Criteria have been satisfied, which certification shall occur within 60 days following the last day of the Performance Period. The Company may effect such transfer either by the delivery of one or more certificates of Common Stock to the Participant or by an appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company, and in either case by issuing such shares in the Participant’s name or in such other name as is acceptable to the Company and designated in writing by the Participant. The Company shall pay all original issue or transfer taxes and all fees and expenses incident to such delivery, except as otherwise provided in Section 3.3 of the Program. Prior to the settlement of the Award, the holder of such Award shall have no rights as a shareholder of the Company with respect to the shares of Common Stock subject to such Award, including, without limitation, voting rights and the right to receive dividends. The Committee reserves the right to settle the shares of Common Stock subject to the Award in cash having a Fair Market Value as of the date of payment equal to the Fair Market Value of such shares, as determined by the Committee in its sole discretion.

7.    Withholding. The Company will have the power and the right to deduct or withhold, or require the Participant or the Participant’s beneficiary to remit to the Company, the number of shares of Common Stock or an amount sufficient to satisfy federal, state, and local taxes, domestic or foreign, required by law or regulation to be withheld with respect to any taxable event arising as a result of this Agreement.

8.    Clawback Provision. Participant acknowledges that Participant has read the Company’s Clawback Policy. In consideration of the grant of the Award, the Participant agrees to abide by the Company’s Clawback Policy and any determinations of the Board pursuant to the Clawback Policy. Without limiting the foregoing, and notwithstanding any provision of this Agreement to the contrary, the Participant agrees that the Company shall have the right to require the Participant to repay the value of the shares received by the Participant pursuant to this Agreement, as may be required by law (including, without limitation, the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder) or as a result of: (i) a financial restatement if the shares issued to the Participant were predicated upon achieving certain Performance Criteria that were subsequently the subject of such financial restatement; (ii) the Committee determined that the Participant engaged in intentional misconduct that caused the need for such restatement; and (iii) a lower number of shares would have been issued based on the restated results. This Section 8 shall survive the termination of the Participant’s employment for any reason. The foregoing remedy is in addition to and separate from any other relief available to the Company due to the Participant’s misconduct or fraud. Any determination by the Committee with respect to the foregoing shall be final, conclusive and binding upon the Participant and all persons claiming through the Participant.

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9.    Administration. The authority to administer and interpret this Agreement shall be vested in the Committee, and the Committee shall have all the powers with respect to this Agreement as it has with respect to the Program and Plan. Any dispute or disagreement which shall arise under, as a result of, or in any way shall relate to the interpretation or construction or this Agreement shall be determined by the Committee, and any such determination shall be final, binding and conclusive for all purposes.

10.    Transferability. The Award shall not be subject to execution, collateral assignment, attachment or similar process, unless otherwise permitted by the Committee under the terms of the Program or Plan. Any such attempted action or other disposition of the Award contrary to the provisions of the Program or Plan shall be null and void, and in such event the Company shall have the right to terminate the Award. Such termination shall not prejudice any rights or remedies which the Company or an Affiliate may have under this Agreement or otherwise.

11.    Notices. Each notice relating to this Agreement shall be in writing and delivered in person or by registered mail to Wintrust Financial Corporation, 9700 West Higgins Road, Rosemont, Illinois 60018, Attn: General Counsel, or at such other address designated by the Company. All notices to the Participant or other person or persons succeeding to the Participant’s rights under this Agreement shall be delivered to the Participant or such other person or persons at the Participant’s address as it then appears on the Company’s records.

12.    Governing Law. This agreement shall be governed by laws of the State of Illinois and shall inure to the benefit of and be binding upon the Company and its successors and assigns and the Participant and the Participant’s heirs, executors, administrators and successors.

13.    Section 409A. The Agreement is intended to comply with the requirements of Section 409A of the Code, and shall be interpreted and construed consistently with such intent; provided, however, that in no event shall the Company or any of its directors, officers, employees or advisors be responsible for any such additional tax, interest or related tax penalties that may be imposed under Section 409A of the Code. Notwithstanding any other provision in the Agreement, Program or Plan, if a Participant is a “specified employee,” as defined in Section 409A of the Code, as of the date of the Participant’s “separation from service,” as defined in Section 409A of the Code, then to the extent any amount payable to the Participant (i) constitutes the payment of nonqualified deferred compensation, within the meaning of Section 409A of the Code, (ii) is payable upon the Participant’s separation from service and (iii) under the terms of this Program would be payable prior to the six-month anniversary of the Participant’s separation from service, such payment shall be delayed until the earlier to occur of (a) the first business day following the six-month anniversary of the separation from service and (b) the date of the Participant’s death.

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Wintrust Financial Corporation by:

Edward J. Wehmer, President and Chief Executive Officer Date

Participant:

«First_Name» «Last_Name» Date

Attest

David A. Dykstra Date

6

Exhibit A

Subject to the terms and conditions of the Agreement, the PSU Award shall be determined as described in this Exhibit A based upon the level of performance achieved over the period commencing on January 1, 2016 and ending on December 31, 2018 (“Performance Period”) as determined in accordance with the following schedule; provided, however, that as an initial, unconditional performance goal, the settlement of a performance-based award shall be subject to the Company’s attainment of a Return on Average Assets equal to 40 basis points over the applicable Performance Period. In the event the Company fails to achieve the ROAA performance goal over the applicable Performance Period, no performance-based awards shall be paid under the LTIP with respect to such Performance Period.

If the initial performance goal described above is achieved, the Compensation Committee will determine the final amount earned, based on cumulative Adjusted Earnings Per Share goals established by the Compensation Committee. The Compensation Committee may adjust these goals or the Company’s performance results to reflect any extraordinary, unusual or unanticipated events. To the extent defined in the Company’s audited financial statements, each performance measure (or component thereof) shall be calculated in accordance with the methodology used for determining such measure for purposes of the Company’s audited financial results.

Performance Measures
Performance Level	Cumulative Adjusted EPS over 3 Year Performance Period	Total Payout as a % of Target Opportunity
Maximum	$13.45	150%
	$13.22	140%
	$12.98	130%
	$12.75	120%
	$12.52	110%
Target	$12.30	100%
	$11.75	90%
	$11.21	80%
	$10.70	70%
	$10.20	60%
Threshold	$10.00	50%
<Threshold	<$10.00	0%

Note: Amounts are based on diluted EPS as adjusted for exclusion of acquisition related charges as determined by the Compensation Committee.

EX-10.4

WINTRUST FINANCIAL CORPORATIONPERFORMANCE AWARD AGREEMENT – CASH SETTLED

This Performance Award Agreement (the “Agreement”) is dated as of Date (the “Grant Date”), by and between Wintrust Financial Corporation, an Illinois corporation (the “Company”), and Name (the “Participant”) and is governed by the terms of the Wintrust Financial Corporation Long-Term Incentive Program (the “Program”), which was adopted by the Compensation Committee (the “Committee”) of the Board of Directors of the Company under the Wintrust Financial Corporation 2015 Stock Incentive Plan (the “Plan”). Capitalized terms not defined herein shall have the meanings specified in the Program or Plan.

1.    Award.

(a)     General Terms of Award. Subject to the terms of this Agreement, the Program and the Plan, the Participant is hereby granted a target performance award equal to CAN $XXX (the “Performance Award”); provided, however, that the actual amount of the Performance Award payable to the Participant shall be determined based upon the satisfaction of the Performance Criteria in accordance with the terms of this Agreement, including Exhibit A hereto. It is understood that this Agreement is subject to the terms of the Program and Plan, to which reference is hereby made for a more detailed description of the terms to which the Performance Award is subject and by which reference the Program and Plan are incorporated herein. The Program and the Plan shall control in the event there is any conflict between the Plan or Program and this Agreement and on such matters as are not contained in this Agreement.

(b)    Acceptance of Agreement. The Performance Award shall be null and void unless the Participant shall accept this Agreement by executing it in the space provided below and returning such execution copy to the Company within ninety (90) days following the Participant’s receipt of this Agreement.

2.    Satisfaction of Performance Criteria. The value of the Performance Award at the end of the Performance Period (as defined in Exhibit A) shall be determined as described in Exhibit A to this Agreement, which Exhibit A is incorporated into and forms a part of this Agreement.

3.    Vesting and Termination of Employment.

(a)    Performance-Based Vesting Conditions. Except as otherwise provided in this Section 3, the Participant shall be eligible to receive the value of the Performance Award determined pursuant to Exhibit A only if the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Performance Award is settled pursuant to Section 6 of this Agreement.

(b)    Termination by Reason of Death, Permanent Disability or Retirement. In the event the employment of the Participant is terminated by reason of the Participant’s death,

1

Permanent Disability or Retirement prior to the date on which the Performance Award is paid pursuant to Section 6 of this Agreement, then the Participant shall be entitled to a prorated Performance Award, with such prorated award equal to the value of the Performance Award determined based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was employed during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period.

For purposes of this Agreement:

(i) Permanent Disability shall mean any mental or physical illness, disability or incapacity that renders the Participant unable to perform his/her duties where a) such Permanent Disability has been determined to exist by a physician selected by the Company or b) the Company has reasonably determined, based on such physician’s advice, that such disability will continue for 180 days or more within any 365-day period, of which at least 90 days are consecutive. The Participant shall cooperate in all respects with the Company if a question arises as to whether he/she has become disabled (including, without limitation, submitting to an examination by a physician or other health care specialist selected by the Company and authorizing such physician or other health care specialist to discuss the Participant’s condition with the Company).

(ii) Retirement shall mean the termination of a Participant’s employment for any reason other than death, disability or termination for Cause if it occurs on or after age 65 or on or after age 55 and, as of the date of termination, the sum of the Participant’s attained age as of his/her most recent birthday and the full and completed years of service with the Company (including continuous years of service, if any, with a Subsidiary as of the date such Subsidiary was acquired by the Company) equals or exceeds 75.

(c)    Termination for any Other Reason. In the event the employment of the Participant is terminated for any reason other than the Participant’s death, Permanent Disability or Retirement prior to the date on which the Performance Award is settled pursuant to Section 6, then the Participant’s Performance Award shall be immediately forfeited by the Participant upon such termination of employment.

(d)    Change of Control. Upon (i) a Change of Control or (ii) the termination of the Participant’s employment by the Company without Cause or by the Participant due to a Constructive Termination within 18 months following the occurrence of a Change of Control, the Performance Award shall be governed by the terms of Sections 12(a) and 12(b) of the Plan, as applicable; provided, however, that in the event the Performance Award shall vest pursuant to

2

Section 12 of the Plan, such Performance Award shall be settled within thirty (30) days following the effective date of the Change of Control in the case of vesting pursuant to Section 12(a) of the Plan or the Participant’s termination of employment in the case of vesting pursuant to Section 12(b) of the Plan; providedfurther, that if the Change of Control is not a “change in control event,” within the meaning of Section 409A of the Code, then such Performance Award shall be settled at the same time as set forth in Section 6.

(e)    Leave of Absence. The Participant shall not be deemed to have terminated employment during any paid leave of absence, provided that the Participant continues to remain an employee of the Company or one of its Affiliates. During any Company-approved unpaid leave of absence, the Performance Award shall be prorated, with such prorated award equal to the value of the Performance Award at the end of the Performance Period based on the actual performance during the Performance Period multiplied by a fraction, the numerator of which shall equal the number of full months such Participant was an active employee and on the Company’s payroll during the Performance Period and the denominator of which shall equal the number of full months in the Performance Period, provided that the Participant continues to remain an employee of the Company or one of its Affiliates.

4.    Non-Solicitation. The Participant understands and acknowledges that the Company and its Affiliates (collectively, “Wintrust”), has expended and continues to expend significant time and resources in recruiting, training and retaining Participant and its employees and in the development of valuable business relationships with its consultants and agents, the loss of which would cause significant and irreparable harm to Wintrust. During Participant’s employment with Wintrust and for twelve (12) months thereafter, Participant agrees and covenants not to directly or indirectly hire, solicit, induce or attempt to hire, solicit or induce any employee, consultant, or agent of Wintrust (i) to terminate such person’s employment or association with Wintrust or (ii) to become employed by or serve in any capacity by a bank or other financial institution which operates or is planned to operate at any facility which is located within a ten mile radius of any principal office or branch office of Wintrust. This restriction shall not prohibit Participant from hiring a Wintrust employee, consultant or agent in response to a general solicitation to the public. The restrictive covenants in this Agreement are in addition to and do not supersede the restrictive covenants in any other agreement Participant may have with Wintrust.

5.    Remedies. Participant acknowledges that compliance with the terms of this Agreement is necessary to protect Wintrust’s employment and business relationships and Wintrust’s goodwill and that any breach by Participant of this Agreement shall cause continuing and irreparable injury to Wintrust for which money damages would not be an adequate remedy. Participant acknowledges that the Company and its Affiliates are all intended beneficiaries of this Agreement. Participant acknowledges that Wintrust shall be, in addition to any other rights or remedies it may have, entitled to injunctive relieve for any breach by Participant of any part of this Agreement. This Agreement shall not in any way limit the remedies available in law or equity to Wintrust.

6.    Payment. The Performance Award shall be paid to the Participant in a lump sum cash payment no later than the March 15th occurring immediately after the last day of the

3

Performance Period; provided that and except as otherwise provided for in this Agreement, the Participant has remained continuously employed by the Company or one of its Affiliates through the date on which the Performance Award is settled pursuant to this Section 6. Notwithstanding any other provision of the Agreement to the contrary, no payment shall occur unless and until the Committee has certified that the applicable Performance Criteria have been satisfied, which certification shall occur within 60 days following the last day of the Performance Period.

7.    Withholding. The Company shall have the power and the right to deduct or withhold, or require the Participant or the Participant’s beneficiary to remit to the Company, an amount sufficient to satisfy federal, state, and local taxes, domestic or foreign, required by law or regulation to be withheld with respect to any taxable event arising as a result of this Agreement.

8.    Clawback Provision. Participant acknowledges that Participant has read the Company’s Clawback Policy. In consideration of the grant of the Performance Award, the Participant agrees to abide by the Company’s Clawback Policy and any determinations of the Board pursuant to the Clawback Policy. Without limiting the foregoing, and notwithstanding any provision of this Agreement to the contrary, the Participant agrees that the Company shall have the right to require the Participant to repay the value of the Performance Award received by the Participant pursuant to this Agreement, as may be required by law (including, without limitation, the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder) or as a result of: (i) a financial restatement if the value of the Performance Award received was predicated upon achieving certain Performance Criteria that were subsequently the subject of such financial restatement; (ii) the Committee determined that the Participant engaged in intentional misconduct that caused the need for such restatement; and (iii) a lower Performance Award would have been paid based on the restated results. This Section 8 shall survive the termination of the Participant’s employment for any reason. The foregoing remedy is in addition to and separate from any other relief available to the Company due to the Participant’s misconduct or fraud. Any determination by the Committee with respect to the foregoing shall be final, conclusive and binding upon the Participant and all persons claiming through the Participant.

9.    Administration. The authority to administer and interpret this Agreement shall be vested in the Committee, and the Committee shall have all the powers with respect to this Agreement as it has with respect to the Program and Plan. Any dispute or disagreement which shall arise under, as a result of, or in any way shall relate to the interpretation or construction or this Agreement shall be determined by the Committee, and any such determination shall be final, binding and conclusive for all purposes.

10.    Transferability. The Performance Award shall not be subject to execution, collateral assignment, attachment or similar process, unless otherwise permitted by the Committee under the terms of the Program or Plan. Any such attempted action or other disposition of the Performance Award contrary to the provisions of the Program or Plan shall be null and void, and in such event the Company shall have the right to terminate the Performance Award. Such termination shall not prejudice any rights or remedies which the Company or an Affiliate may have under this Agreement or otherwise.

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11.    Notices. Each notice relating to this Agreement shall be in writing and delivered in person or by registered mail to Wintrust Financial Corporation, 9700 West Higgins Road, Rosemont, Illinois 60018, Attn: General Counsel, or at such other address designated by the Company. All notices to the Participant or other person or persons succeeding to the Participant’s rights under this Agreement shall be delivered to the Participant or such other person or persons at the Participant’s address as it then appears on the Company’s records.

12.    Governing Law. This agreement shall be governed by laws of the State of Illinois and shall inure to the benefit of and be binding upon the Company and its successors and assigns and the Participant and the Participant’s heirs, executors, administrators and successors.

13.    Section 409A. The Agreement is intended to comply with the requirements of Section 409A of the Code, and shall be interpreted and construed consistently with such intent; provided, however, that in no event shall the Company or any of its directors, officers, employees or advisors be responsible for any such additional tax, interest or related tax penalties that may be imposed under Section 409A of the Code. Notwithstanding any other provision in the Agreement, Program or Plan, if a Participant is a “specified employee,” as defined in Section 409A of the Code, as of the date of the Participant’s “separation from service,” as defined in Section 409A of the Code, then to the extent any amount payable to the Participant (i) constitutes the payment of nonqualified deferred compensation, within the meaning of Section 409A of the Code, (ii) is payable upon the Participant’s separation from service and (iii) under the terms of this Program would be payable prior to the six-month anniversary of the Participant’s separation from service, such payment shall be delayed until the earlier to occur of (a) the first business day following the six-month anniversary of the separation from service and (b) the date of the Participant’s death.

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Wintrust Financial Corporation by:

Edward J. Wehmer, President and Chief Executive Officer Date

Participant:

Name Date

Attest

David A. Dykstra Date

6

Exhibit A

Subject to the terms and conditions of the Agreement, the Performance Award shall be determined as described in this Exhibit A based upon the level of performance achieved over the period commencing on January 1, 2016 and ending on December 31, 2018 (“Performance Period”) as determined in accordance with the following schedule; provided, however, that as an initial, unconditional performance goal, the settlement of a performance-based award shall be subject to the Company’s attainment of a Return on Average Assets equal to 40 basis points over the applicable Performance Period. In the event the Company fails to achieve the ROAA performance goal over the applicable Performance Period, no performance-based awards shall be paid under the LTIP with respect to such Performance Period.

If the initial performance goal described above is achieved, the Compensation Committee will determine the final amount earned, based on cumulative Adjusted Earnings Per Share goals established by the Compensation Committee. The Compensation Committee may adjust these goals or the Company’s performance results to reflect any extraordinary, unusual or unanticipated events. To the extent defined in the Company’s audited financial statements, each performance measure (or component thereof) shall be calculated in accordance with the methodology used for determining such measure for purposes of the Company’s audited financial results.

Performance Measures
Performance Level	Cumulative Adjusted EPS over 3 Year Performance Period	Total Payout as a % of Target Opportunity
Maximum	$13.45	150%
	$13.22	140%
	$12.98	130%
	$12.75	120%
	$12.52	110%
Target	$12.30	100%
	$11.75	90%
	$11.21	80%
	$10.70	70%
	$10.20	60%
Threshold	$10.00	50%
<Threshold	<$10.00	0%

Note: Amounts are based on diluted EPS as adjusted for exclusion of acquisition related charges as determined by the Compensation Committee.

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: May 9, 2016

/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: May 9, 2016

/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 March 31, 2016, as filed with the Securities and Exchange Commission on May 9, 2016, (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:      May 9, 2016

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

Date:      May 9, 2016

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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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
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		48,560,301

XML

Consolidated Statements Of Condition (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Assets
Cash and due from banks	$ 208,480	$ 271,454	$ 286,743
Federal funds sold and securities purchased under resale agreements	3,820	4,341	4,129
Interest bearing deposits with banks	817,013	607,782	697,799
Available-for-sale securities, at fair value	770,983	1,716,388	1,721,030
Held-to-maturity securities, at amortized cost ($924.3 million and $878.1 million fair value at March 31, 2016 and December 31, 2015, respectively)	911,715	884,826	0
Trading account securities	2,116	448	7,811
Federal Home Loan Bank and Federal Reserve Bank stock	113,222	101,581	92,948
Brokerage customer receivables	28,266	27,631	25,287
Mortgage loans held-for-sale	314,554	388,038	446,355
Loans, net of unearned income, excluding covered loans	17,446,413	17,118,117	14,953,059
Covered loans	138,848	148,673	209,694
Total loans	17,585,261	17,266,790	15,162,753
Less: Allowance for loan losses	110,171	105,400	94,446
Less: Allowance for covered loan losses	2,507	3,026	1,878
Net loans	17,472,583	17,158,364	15,066,429
Premises and equipment, net	591,608	592,256	559,281
Lease investments, net	89,337	63,170	383
FDIC indemnification asset	0	0	10,224
Accrued interest receivable and other assets	647,853	597,099	526,029
Trade date securities receivable	1,008,613	0	488,063
Goodwill	484,280	471,761	420,197
Other intangible assets	23,725	24,209	18,858
Total assets	23,488,168	22,909,348	20,371,566
Deposits:
Non-interest bearing	5,205,410	4,836,420	3,779,609
Interest bearing	14,011,661	13,803,214	13,159,160
Total deposits	19,217,071	18,639,634	16,938,769
Federal Home Loan Bank advances	799,482	853,431	406,839
Other borrowings	253,126	265,785	186,716
Subordinated notes	138,888	138,861	138,782
Junior subordinated debentures	253,566	268,566	249,493
Trade date securities payable	0	538	2,929
Accrued interest payable and other liabilities	407,593	390,259	316,964
Total liabilities	21,069,726	20,557,074	18,240,492
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 March 31, 2016, December 31, 2015 and March 31, 2015; 48,608,559 shares issued at March 31, 2016, 48,468,894 shares issued at December 31, 2015 and 47,474,721 shares issued at March 31, 2015	48,608	48,469	47,475
Surplus	1,194,750	1,190,988	1,156,542
Treasury stock, at cost, 89,561 shares at March 31, 2016, 85,615 shares at December 31, 2015, and 85,113 shares at March 31, 2015	(4,145)	(3,973)	(3,948)
Retained earnings	967,882	928,211	835,669
Accumulated other comprehensive loss	(39,910)	(62,708)	(31,091)
Total shareholders' equity	2,418,442	2,352,274	2,131,074
Total liabilities and shareholders' equity	23,488,168	22,909,348	20,371,566
Series C - $1,000 liquidation value; 126,257 shares issued and outstanding at March 31, 2016, 126,287 shares issued and outstanding at December 31, 2015, and 126,427 shares issued and outstanding at March 31, 2015
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	126,257	126,287	126,427
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at March 31, 2016 and December 31, 2015 and no shares issued and outstanding at March 31, 2015
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	$ 125,000	$ 125,000	$ 0

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Consolidated Statements Of Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Held-to-maturity securities, Fair Value	$ 924,344	$ 878,111	$ 0
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	48,608,559	48,468,894	47,474,721
Treasury stock, shares	89,561	85,615	85,113
Series C Preferred Stock
Preferred stock, liquidation value per share	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares outstanding	126,257	126,287	126,427
Series D Preferred Stock
Preferred stock, liquidation value per share	$ 25	$ 25	$ 0
Preferred stock, shares outstanding	5,000,000	5,000,000	0

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Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income
Interest and fees on loans	$ 173,127	$ 154,676
Interest bearing deposits with banks	746	316
Federal funds sold and securities purchased under resale agreements	1	2
Investment securities	17,190	14,400
Trading account securities	11	13
Federal Home Loan Bank and Federal Reserve Bank stock	937	769
Brokerage customer receivables	219	181
Total interest income	192,231	170,357
Interest expense
Interest on deposits	12,781	11,814
Interest on Federal Home Loan Bank advances	2,886	2,156
Interest on other borrowings	1,058	788
Interest on subordinated notes	1,777	1,775
Interest on junior subordinated debentures	2,220	1,933
Total interest expense	20,722	18,466
Net interest income	171,509	151,891
Provision for credit losses	8,034	6,079
Net interest income after provision for credit losses	163,475	145,812
Non-interest income
Wealth management	18,320	18,100
Mortgage banking	21,735	27,800
Service charges on deposit accounts	7,406	6,297
Gains on available-for-sale securities, net	1,325	524
Fees from covered call options	1,712	4,360
Trading losses, net	(168)	(477)
Operating lease income, net	2,806	65
Other	15,616	7,872
Total non-interest income	68,752	64,541
Non-interest expense
Salaries and employee benefits	95,811	90,130
Equipment	8,767	7,779
Operating lease equipment depreciation	2,050	57
Occupancy, net	11,948	12,351
Data processing	6,519	5,448
Advertising and marketing	3,779	3,907
Professional fees	4,059	4,664
Amortization of other intangible assets	1,298	1,013
FDIC insurance	3,613	2,987
OREO expense, net	560	1,411
Other	15,326	17,571
Total non-interest expense	153,730	147,318
Income before taxes	78,497	63,035
Income tax expense	29,386	23,983
Net income	49,111	39,052
Preferred stock dividends and discount accretion	3,628	1,581
Net income applicable to common shares	$ 45,483	$ 37,471
Net income per common share-Basic	$ 0.94	$ 0.79
Net income per common share-Diluted	0.90	0.76
Cash dividends declared per common share	$ 0.12	$ 0.11
Weighted average common shares outstanding	48,448	47,239
Dilutive potential common shares	3,820	4,233
Average common shares and dilutive common shares	52,268	51,472

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Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 49,111	$ 39,052
Unrealized gains on securities
Before tax	25,176	26,276
Tax effect	(9,988)	(10,331)
Net of tax	15,188	15,945
Reclassification of net gains included in net income
Before tax	1,325	524
Tax effect	(521)	(206)
Net of tax	804	318
Reclassification of amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	(3,425)	0
Tax effect	1,339	0
Net of tax	(2,086)	0
Net unrealized gains on securities	16,470	15,627
Unrealized gains (losses) on derivative instruments
Before tax	478	(561)
Tax effect	(188)	220
Net unrealized gains (losses) on derivative instruments	290	(341)
Foreign currency adjustment
Before tax	8,347	(12,290)
Tax effect	(2,309)	3,245
Net foreign currency adjustment	6,038	(9,045)
Total other comprehensive income	22,798	6,241
Comprehensive income	$ 71,909	$ 45,293

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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, 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	39,052					39,052
Other comprehensive income, net of tax	6,241						6,241
Cash dividends declared on common stock	(5,202)					(5,202)
Dividends on preferred stock	(1,581)					(1,581)
Stock-based compensation	2,271			2,271	0
Conversion of Series C preferred stock to common stock	0	(40)	1	39
Common stock issued for:
Acquisitions	19,004		422	18,582
Exercise of stock options and warrants	457		52	535	(130)
Restricted stock awards	144		84	329	(269)
Employee stock purchase plan	681		15	666
Director compensation plan	185		20	165
Balance at Mar. 31, 2015	2,131,074	126,427	47,475	1,156,542	(3,948)	835,669	(31,091)
Balance at Dec. 31, 2015	2,352,274	251,287	48,469	1,190,988	(3,973)	928,211	(62,708)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	49,111					49,111	0
Other comprehensive income, net of tax	22,798						22,798
Cash dividends declared on common stock	(5,812)					(5,812)
Dividends on preferred stock	(3,628)					(3,628)
Stock-based compensation	2,484			2,484
Conversion of Series C preferred stock to common stock	0	(30)	1	29
Common stock issued for:
Exercise of stock options and warrants	141		17	124	0
Restricted stock awards	16		82	106	(172)
Employee stock purchase plan	648		14	634
Director compensation plan	410		25	385
Balance at Mar. 31, 2016	$ 2,418,442	$ 251,257	$ 48,608	$ 1,194,750	$ (4,145)	$ 967,882	$ (39,910)

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Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities:
Net income	$ 49,111	$ 39,052
Adjustments to reconcile net income to net cash provided by (used for) operating activities
Provision for credit losses	8,034	6,079
Depreciation, amortization and accretion, net	13,610	9,077
Stock-based compensation expense	2,484	2,271
Excess tax benefits from stock-based compensation arrangements	(193)	(471)
Net amortization of premium on securities	632	845
Accretion of discount on loans	(8,276)	(7,583)
Mortgage servicing rights fair value change, net	(1,036)	514
Originations and purchases of mortgage loans held-for-sale	(736,648)	(941,651)
Proceeds from sales of mortgage loans held-for-sale	826,419	867,194
Bank owned life insurance, net of claims	(472)	(766)
Increase in trading securities, net	(1,668)	(6,605)
Net increase in brokerage customer receivables	(635)	(1,066)
Gains on mortgage loans sold	(16,287)	(20,608)
Gains on available-for-sale securities, net	(1,325)	(524)
Gains on early extinguishment of debt	(4,305)	0
Losses on sales of premises and equipment, net	21	81
Net gains on sales and fair value adjustments of other real estate owned	(119)	(549)
Increase in accrued interest receivable and other assets, net	(75,172)	(20,964)
Increase (decrease) in accrued interest payable and other liabilities, net	12,187	(48,874)
Net Cash Provided by (Used for) Operating Activities	66,362	(124,548)
Investing Activities:
Proceeds from maturities of available-for-sale securities	26,128	122,163
Proceeds from maturities of held-to-maturity securities	181	0
Proceeds from sales of available-for-sale securities	3,201	635,532
Proceeds from calls of held-to-maturity securities	98,243	0
Purchases of available-for-sale securities	(39,267)	(629,008)
Purchases of held-to-maturity securities	(125,208)	0
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock, net	(11,641)	(1,366)
Net cash (paid) received for acquisitions	(17,452)	12,004
Proceeds from sales of other real estate owned	10,341	11,733
Proceeds received from (payments provided to) the FDIC related to reimbursements on covered assets	363	(2,056)
Net (increase) decrease in interest bearing deposits with banks	(204,994)	300,706
Net increase in loans	(248,893)	(399,939)
Purchases of premises and equipment, net	(8,677)	(5,902)
Net Cash (Used for) Provided by Investing Activities	(517,675)	43,867
Financing Activities:
Increase in deposit accounts	477,466	486,960
Decrease in other borrowings, net	(12,700)	(20,327)
Decrease in Federal Home Loan Bank advances, net	(58,466)	(321,565)
Redemption of junior subordinated debentures, net	(10,695)	0
Excess tax benefits from stock-based compensation arrangements	193	471
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	1,632	2,489
Common stock repurchases	(172)	(399)
Dividends paid	(9,440)	(6,783)
Net Cash Provided by Financing Activities	387,818	140,846
Net (Decrease) Increase in Cash and Cash Equivalents	(63,495)	60,165
Cash and Cash Equivalents at Beginning of Period	275,795	230,707
Cash and Cash Equivalents at End of Period	$ 212,300	$ 290,872

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Basis of Presentation

3 Months Ended

Mar. 31, 2016

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, 2015 (“2015 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 the Company's significant accounting policies are included in Note 1 - “Summary of Significant Accounting Policies” of the 2015 Form 10-K.

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Recent Accounting Developments

3 Months Ended

Mar. 31, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Developments

Recent Accounting Developments

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.

In March 2016, the FASB issued ASU No. 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)", to clarify the implementation guidance within ASU No. 2014-09 surrounding principal versus agent considerations and its impact on revenue recognition. Additionally, in April 2016, the FASB issued ASU No. 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing", to also clarify the implementation guidance within ASU No. 2014-09 related to these two topics. Like ASU No. 2014-09, this guidance is 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 was effective for fiscal years beginning after December 15, 2015 and did not 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 was effective for fiscal years beginning after December 15, 2015 and did not have a material impact on the Company's 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. Additionally, in August 2015, the FASB issued ASU No. 2015-15, "Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements (Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting," to further clarify the presentation of debt issuance costs related to line-of-credit agreements. This ASU states the SEC would not object to an entity deferring and presenting debt issuance costs related to line-of-credit agreements as an asset on the balance sheet and subsequently amortizing these costs ratably over the term of the agreement, regardless of any outstanding borrowing under the line-of-credit agreement. This guidance was effective for fiscal years beginning after December 15, 2015 and was applied retrospectively within the Company’s consolidated financial statements. For December 31, 2015 and March 31, 2015, the Company reclassified as a direct reduction to the related debt balance $7.8 million and $10.7 million, respectively, of debt issuance costs that were previously presented as accrued interest receivable and other assets on the Consolidated Statements of Condition.

Business Combinations

In September 2015, the FASB issued ASU No. 2015-16, "Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments," to simplify the accounting for subsequent adjustments made to provisional amounts recognized at the acquisition date of a business combination. This ASU eliminates the requirement to retrospectively account for these adjustment for all prior periods impacted. The acquirer is required to recognize these adjustments identified during the measurement period in the reporting period in which the adjustment amount is determined. Additionally, the ASU requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings that would have been recorded in previous reporting periods if the adjustment had been recognized at the acquisition date. This guidance was effective for fiscal years beginning after December 15, 2015 and did not have a material impact on the Company’s consolidated financial statements.

Financial Instruments

In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," to improve the accounting for financial instruments. This ASU requires    equity investments with readily determinable fair values to be measured at fair value with changes recognized in net income regardless of classification. For equity investments without a readily determinable fair value, the value of the investment would be measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer instead of fair value, unless a qualitative assessment indicates impairment. Additionally, this ASU requires the separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements. This guidance is effective for fiscal years beginning after December 15, 2017 and is to be applied prospectively with a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Leases

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)," to improve transparency and comparability across entities regarding leasing arrangements. This ASU requires the recognition of a separate lease liability representing the required lease payments over the lease term and a separate lease asset representing the right to use the underlying asset during the same lease term. Additionally, this ASU provides clarification regarding the identification of certain components of contracts that would represent a lease as well as requires additional disclosures to the notes of the financial statements. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach, including the option to apply certain practical expedients. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Derivatives

In March 2016, the FASB issued ASU No. 2016-05, "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships," to clarify guidance surrounding the effect on an existing hedging relationship of a change in the counterparty to a derivative instrument that has been designated as a hedging instrument. This ASU states that a change in counterparty to such derivative instrument does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied either under a prospective or a modified retrospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Equity Method Investments

In March 2016, the FASB issued ASU No. 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting," to simplify the accounting for investments qualifying for the use of the equity method of accounting. This ASU eliminates the requirement to retroactively adopt the equity method of accounting when an investment qualifies for such method as a result of an increase in the level of ownership interest or degree of influence. The ASU requires the equity method investor add the cost of acquiring the additional interest to the current basis and adopt the equity method of accounting as of that date going forward. Additionally, for available-for-sale equity securities that become qualified for equity method accounting, the ASU requires the related unrealized holding gains or losses included in accumulated other comprehensive income be recognized in earnings at the date the investment qualifies for such accounting. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied under a prospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Employee Share-Based Compensation

In March 2016, the FASB issued ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," to simplify the accounting for several areas of share-based payment transactions. This includes the recognition of all excess tax benefits and tax deficiencies as income tax expense instead of surplus, the classification on the statement of cash flows of excess tax benefits and taxes paid when the employer withholds shares for tax-withholding purposes. Additionally, related to forfeitures, the ASU provides the option to estimate the number of awards that are expected to vest or account for forfeitures as they occur. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years, and is to be applied under a modified retrospective and retrospective approach based upon the specific amendment of the ASU. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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Business Combinations

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Business Combinations

Business Combinations

Non-FDIC Assisted Bank Acquisitions

On March 31, 2016, the Company acquired Generations Bancorp, Inc ("Generations"). Generations was the parent company of Foundations Bank, which had one banking location in Pewaukee, Wisconsin. Foundations Bank was merged into the Company's wholly-owned subsidiary Town Bank. The Company acquired assets with a fair value of approximately $134.2 million, including approximately $67.5 million of loans, and assumed deposits with a fair value of approximately $100.1 million. Additionally, the Company recorded goodwill of $11.3 million on the acquisition. Certain purchase price allocations for Generations are preliminary. The final determination of the amounts is not expected to result in material changes to recorded amounts.

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. CBWGE was merged into the Company's wholly-owned subsidiary Wheaton Bank & Trust Company ("Wheaton Bank"). The Company acquired assets with a fair value of approximately $350.5 million, including approximately $159.5 million of loans, and assumed deposits with a fair value of approximately $290.0 million. Additionally, the Company recorded goodwill of $27.6 million on the acquisition.

On July 17, 2015, the Company acquired Suburban Illinois Bancorp, Inc. ("Suburban"). Suburban was the parent company of Suburban Bank & Trust Company ("SBT"), which operated ten banking locations. SBT was merged into the Company's wholly-owned subsidiary Hinsdale Bank & Trust Company ("Hinsdale Bank"). The Company acquired assets with a fair value of approximately $494.7 million, including approximately $257.8 million of loans, and assumed deposits with a fair value of approximately $416.7 million. Additionally, the Company recorded goodwill of $18.6 million on the acquisition.

On July 1, 2015, the Company, through its wholly-owned subsidiary Wintrust Bank, acquired North Bank, which had two banking locations. The Company acquired assets with a fair value of $117.9 million, including approximately $51.6 million of loans, and assumed deposits with a fair value of approximately $101.0 million. Additionally, the Company recorded goodwill of $6.7 million on the acquisition.

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 $16.8 million on the acquisition.

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 and require the Company to record loss share assets and liabilities that 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 and liabilities are recorded as FDIC indemnification assets and other liabilities, respectively, 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 and, if necessary, increase any loss share liability when necessary reductions exceed the current value of 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. On the Consolidated Statements of Condition, estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset or, if necessary, an increase to the loss share liability, which is included within accrued interest payable and other liabilities. Although these assets are contractual receivables from the FDIC and these liabilities are contractual payables to 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 (liability) asset during the periods indicated:

	Three Months Ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Balance at beginning of period	$	(6,100	)	$	11,846
Additions from acquisitions	—			—
Additions from reimbursable expenses	82			1,575
Amortization	(101		)	(1,260		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(3,547		)	(3,993		)
(Payments received from) provided to the FDIC	(363		)	2,056
Balance at end of period	$	(10,029	)	$	10,224

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 additional information on PCI loans.

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Cash and Cash Equivalents

3 Months Ended

Mar. 31, 2016

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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Investment Securities

3 Months Ended

Mar. 31, 2016

Available-for-sale Securities and Held-to-maturity Securities [Abstract]

Investment Securities

Investment Securities

The following tables are a summary of the available-for-sale and held-to-maturity securities portfolios as of the dates shown:

	March 31, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	117,105	$	22	$	(38	)	$	117,089
U.S. Government agencies	93,990		194		(12		)	94,172
Municipal	118,187		3,232		(224		)	121,195
Corporate notes:
Financial issuers	78,048		1,492		(1,830		)	77,710
Other	2,500		3		—			2,503
Mortgage-backed: (1)
Mortgage-backed securities	262,109		3,795		(1,900		)	264,004
Collateralized mortgage obligations	38,565		324		(198		)	38,691
Equity securities	51,402		4,585		(368		)	55,619
Total available-for-sale securities	$	761,906	$	13,647	$	(4,570	)	$	770,983
Held-to-maturity securities
U.S. Government agencies	$	712,732	$	11,569	$	(1,455	)	$	722,846
Municipal	198,983		2,672		(157		)	201,498
Total held-to-maturity securities	$	911,715	$	14,241	$	(1,612	)	$	924,344

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	312,282	$	—	$	(5,553	)	$	306,729
U.S. Government agencies	70,313		198		(275		)	70,236
Municipal	105,702		3,249		(356		)	108,595
Corporate notes:
Financial issuers	80,014		1,510		(1,481		)	80,043
Other	1,500		4		(2		)	1,502
Mortgage-backed: (1)
Mortgage-backed securities	1,069,680		3,834		(21,004		)	1,052,510
Collateralized mortgage obligations	40,421		172		(506		)	40,087
Equity securities	51,380		5,799		(493		)	56,686
Total available-for-sale securities	$	1,731,292	$	14,766	$	(29,670	)	$	1,716,388
Held-to-maturity securities
U.S. Government agencies	$	687,302	$	4	$	(7,144	)	$	680,162
Municipal	197,524		867		(442		)	197,949
Total held-to-maturity securities	$	884,826	$	871	$	(7,586	)	$	878,111

	March 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	273,173	$	148	$	(1,847	)	$	271,474
U.S. Government agencies	665,177		5,348		(8,732		)	661,793
Municipal	264,949		6,485		(1,522		)	269,912
Corporate notes:
Financial issuers	129,360		1,965		(1,321		)	130,004
Other	3,759		52		(1		)	3,810
Mortgage-backed: (1)
Mortgage-backed securities	280,679		5,983		(2,529		)	284,133
Collateralized mortgage obligations	45,299		435		(276		)	45,458
Equity securities	48,717		5,979		(250		)	54,446
Total available-for-sale securities	$	1,711,113	$	26,395	$	(16,478	)	$	1,721,030
Held-to-maturity securities
U.S. Government agencies	$	—	$	—	$	—		$	—
Municipal	—		—		—			—
Total held-to-maturity securities	$	—	$	—	$	—		$	—

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

In the fourth quarter of 2015, the Company transferred $862.7 million of investment securities with an unrealized loss of $14.4 million from the available-for-sale classification to the held-to-maturity classification. No investment securities were transferred from the available-for-sale classification to the held-to-maturity classification in the first quarter of 2016.

The following table presents the portion of the Company’s available-for-sale and held-to-maturity securities portfolios which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016:

	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
Available-for-sale securities
U.S. Treasury	$	75,049	$	(38	)	$	—	$	—		$	75,049	$	(38	)
U.S. Government agencies	13,982		(10		)	1,833		(2		)	15,815		(12		)
Municipal	18,399		(40		)	6,977		(184		)	25,376		(224		)
Corporate notes:
Financial issuers	22,952		(237		)	34,367		(1,593		)	57,319		(1,830		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	2,038		(3		)	122,371		(1,897		)	124,409		(1,900		)
Collateralized mortgage obligations	4,880		(42		)	7,803		(156		)	12,683		(198		)
Equity securities	3,964		(55		)	8,599		(313		)	12,563		(368		)
Total available-for-sale securities	$	141,264	$	(425	)	$	181,950	$	(4,145	)	$	323,214	$	(4,570	)
Held-to-maturity securities
U.S. Government agencies	$	208,405	$	(1,455	)	$	—	$	—		$	208,405	$	(1,455	)
Municipal	15,919		(125		)	4,917		(32		)	20,836		(157		)
Total held-to-maturity securities	$	224,324	$	(1,580	)	$	4,917	$	(32	)	$	229,241	$	(1,612	)

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 March 31, 2016 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 corporate notes and mortgage-backed securities. Unrealized losses recognized on corporate notes and mortgage-backed securities are the result of increases in yields for similar types of securities.

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 March 31,
(Dollars in thousands)	2016			2015
Realized gains	$	2,550		$	553
Realized losses	(1,225		)	(29		)
Net realized gains	$	1,325		$	524
Other than temporary impairment charges	—			—
Gains on available-for-sale securities, net	$	1,325		$	524
Proceeds from sales of available-for-sale securities	$	3,201		$	635,532

The amortized cost and fair value of securities as of March 31, 2016, December 31, 2015 and March 31, 2015, 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:

	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	208,518	$	208,641	$	160,856	$	160,756	$	151,585	$	151,854
Due in one to five years	158,668		158,804		166,550		166,468		249,861		250,483
Due in five to ten years	28,970		31,363		228,652		225,699		837,926		836,598
Due after ten years	13,674		13,861		13,753		14,182		97,046		98,058
Mortgage-backed	300,674		302,695		1,110,101		1,092,597		325,978		329,591
Equity securities	51,402		55,619		51,380		56,686		48,717		54,446
Total available-for-sale securities	$	761,906	$	770,983	$	1,731,292	$	1,716,388	$	1,711,113	$	1,721,030
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	24,319		24,448		19,208		19,156		—		—
Due in five to ten years	65,879		66,432		96,454		96,091		—		—
Due after ten years	821,517		833,464		769,164		762,864		—		—
Total held-to-maturity securities	$	911,715	$	924,344	$	884,826	$	878,111	$	—	$	—

Securities having a fair value of $1.2 billion at March 31, 2016 as well as securities having a carrying value of $1.2 billion and $1.1 billion at December 31, 2015 and March 31, 2015, respectively, were pledged as collateral for public deposits, trust deposits, FHLB advances, securities sold under repurchase agreements and derivatives. At March 31, 2016, 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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Loans

3 Months Ended

Mar. 31, 2016

Loans and Leases Receivable Disclosure [Abstract]

Loans

Loans

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

	March 31,			December 31,			March 31,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	4,890,246		$	4,713,909		$	4,211,932
Commercial real estate	5,737,959			5,529,289			4,710,486
Home equity	774,342			784,675			709,283
Residential real estate	626,043			607,451			495,925
Premium finance receivables—commercial	2,320,987			2,374,921			2,319,623
Premium finance receivables—life insurance	2,976,934			2,961,496			2,375,654
Consumer and other	119,902			146,376			130,156
Total loans, net of unearned income, excluding covered loans	$	17,446,413		$	17,118,117		$	14,953,059
Covered loans	138,848			148,673			209,694
Total loans	$	17,585,261		$	17,266,790		$	15,162,753
Mix:
Commercial	28		%	27		%	28		%
Commercial real estate	32			32			31
Home equity	4			5			5
Residential real estate	4			3			3
Premium finance receivables—commercial	13			14			15
Premium finance receivables—life insurance	17			17			16
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	99		%	99		%
Covered loans	1			1			1
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 $56.9 million at March 31, 2016, $56.7 million at December 31, 2015 and $48.1 million at March 31, 2015, 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 $(8.9) million at March 31, 2016, $(9.2) million at December 31, 2015 and $(3.7) million at March 31, 2015. The net credit balance at these dates, is primarily the result of purchase accounting adjustments related to acquisitions in 2016 and 2015.

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:

	March 31, 2016				December 31, 2015
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	331,354	$	276,012	$	326,470	$	271,260
Life insurance premium finance loans acquisition	299,915		296,138		372,738		368,292

The following table provides estimated details as of the date of acquisition on loans acquired in 2016 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Foundations
Contractually required payments including interest	$	19,350
Less: Nonaccretable difference	3,640
Cash flows expected to be collected (1)	$	15,710
Less: Accretable yield	1,141
Fair value of PCI loans acquired	$	14,569

(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 March 31, 2016.

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
(Dollars in thousands)	March 31, 2016			March 31, 2015
Accretable yield, beginning balance	$	63,902		$	79,102
Acquisitions	1,141			898
Accretable yield amortized to interest income	(5,457		)	(6,105		)
Accretable yield amortized to indemnification asset (1)	(2,171		)	(3,576		)
Reclassification from non-accretable difference (2)	4,193			1,103
Decreases in interest cash flows due to payments and changes in interest rates	(2,390		)	(1,224		)
Accretable yield, ending balance (3)	$	59,218		$	70,198

(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 March 31, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $4.8 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income accounted for under ASC 310-30 totaled $5.5 million and $6.1 million in the first quarter of 2016 and 2015, respectively. These amounts include accretion from both covered and non-covered loans, and are both included 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

3 Months Ended

Mar. 31, 2016

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 March 31, 2016, December 31, 2015 and March 31, 2015:

As of March 31, 2016			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, industrial and other	$	12,370	$	338	$	3,228	$	25,608	$	3,363,011	$	3,404,555
Franchise	—		—		—		1,400		273,158		274,558
Mortgage warehouse lines of credit	—		—		—		1,491		192,244		193,735
Asset-based lending	3		—		117		10,597		737,184		747,901
Leases	—		—		—		5,177		244,241		249,418
PCI - commercial (1)	—		1,893		—		128		18,058		20,079
Total commercial	12,373		2,231		3,345		44,401		4,827,896		4,890,246
Commercial real estate:
Construction	273		—		—		2,023		389,026		391,322
Land	1,746		—		—		—		93,834		95,580
Office	7,729		1,260		980		12,571		865,954		888,494
Industrial	10,960		—		—		3,935		728,061		742,956
Retail	1,633		—		2,397		2,657		890,780		897,467
Multi-family	287		—		655		2,047		760,084		763,073
Mixed use and other	4,368		—		187		12,312		1,778,850		1,795,717
PCI - commercial real estate (1)	—		24,738		1,573		10,344		126,695		163,350
Total commercial real estate	26,996		25,998		5,792		45,889		5,633,284		5,737,959
Home equity	9,365		—		791		4,474		759,712		774,342
Residential real estate, including PCI	11,964		406		193		10,108		603,372		626,043
Premium finance receivables
Commercial insurance loans	15,350		9,548		5,583		15,086		2,275,420		2,320,987
Life insurance loans	—		1,641		3,432		198		2,675,525		2,680,796
PCI - life insurance loans (1)	—		—		—		—		296,138		296,138
Consumer and other, including PCI	484		245		118		364		118,691		119,902
Total loans, net of unearned income, excluding covered loans	$	76,532	$	40,069	$	19,254	$	120,520	$	17,190,038	$	17,446,413
Covered loans	5,324		7,995		349		6,491		118,689		138,848
Total loans, net of unearned income	$	81,856	$	48,064	$	19,603	$	127,011	$	17,308,727	$	17,585,261

As of December 31, 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, industrial and other	$	12,704	$	6	$	6,749	$	12,930	$	3,226,139	$	3,258,528
Franchise	—		—		—		—		245,228		245,228
Mortgage warehouse lines of credit	—		—		—		—		222,806		222,806
Asset-based lending	8		—		3,864		1,844		736,968		742,684
Leases	—		535		748		4,192		220,599		226,074
PCI - commercial (1)	—		892		—		2,510		15,187		18,589
Total commercial	12,712		1,433		11,361		21,476		4,666,927		4,713,909
Commercial real estate
Construction	306		—		1,371		1,645		355,338		358,660
Land	1,751		—		—		120		76,546		78,417
Office	4,619		—		764		3,817		853,801		863,001
Industrial	9,564		—		1,868		1,009		715,207		727,648
Retail	1,760		—		442		2,310		863,887		868,399
Multi-family	1,954		—		597		6,568		733,230		742,349
Mixed use and other	6,691		—		6,723		7,215		1,712,187		1,732,816
PCI - commercial real estate (1)	—		22,111		4,662		16,559		114,667		157,999
Total commercial real estate	26,645		22,111		16,427		39,243		5,424,863		5,529,289
Home equity	6,848		—		1,889		5,517		770,421		784,675
Residential real estate, including PCI	12,043		488		2,166		3,903		588,851		607,451
Premium finance receivables
Commercial insurance loans	14,561		10,294		6,624		21,656		2,321,786		2,374,921
Life insurance loans	—		—		3,432		11,140		2,578,632		2,593,204
PCI - life insurance loans (1)	—		—		—		—		368,292		368,292
Consumer and other, including PCI	263		211		204		1,187		144,511		146,376
Total loans, net of unearned income, excluding covered loans	$	73,072	$	34,537	$	42,103	$	104,122	$	16,864,283	$	17,118,117
Covered loans	5,878		7,335		703		5,774		128,983		148,673
Total loans, net of unearned income	$	78,950	$	41,872	$	42,806	$	109,896	$	16,993,266	$	17,266,790

(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 March 31, 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, industrial and other	$	5,586	$	—	$	5,047	$	17,338	$	2,779,781	$	2,807,752
Franchise	—		—		—		457		225,305		225,762
Mortgage warehouse lines of credit	—		—		—		—		186,372		186,372
Asset-based lending	—		—		—		4,819		805,866		810,685
Leases	—		—		65		517		171,432		172,014
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:
Construction	—		—		—		992		255,835		256,827
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, including PCI	14,248		266		753		8,819		471,839		495,925
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, including PCI	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.

The Company's 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 and covered 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 March 31, 2016, December 31, 2015 and March 31, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,391,847	$	3,245,818	$	2,802,166	$	12,708	$	12,710	$	5,586	$	3,404,555	$	3,258,528	$	2,807,752
Franchise	274,558		245,228		225,762		—		—		—		274,558		245,228		225,762
Mortgage warehouse lines of credit	193,735		222,806		186,372		—		—		—		193,735		222,806		186,372
Asset-based lending	747,898		742,676		810,685		3		8		—		747,901		742,684		810,685
Leases	249,418		225,539		172,014		—		535		—		249,418		226,074		172,014
PCI - commercial (1)	20,079		18,589		9,347		—		—		—		20,079		18,589		9,347
Total commercial	4,877,535		4,700,656		4,206,346		12,711		13,253		5,586		4,890,246		4,713,909		4,211,932
Commercial real estate
Construction	391,049		358,354		256,827		273		306		—		391,322		358,660		256,827
Land	93,834		76,666		86,396		1,746		1,751		2,646		95,580		78,417		89,042
Office	879,505		858,382		734,883		8,989		4,619		8,243		888,494		863,001		743,126
Industrial	731,996		718,084		600,830		10,960		9,564		3,496		742,956		727,648		604,326
Retail	895,834		866,639		737,552		1,633		1,760		4,975		897,467		868,399		742,527
Multi-family	762,786		740,395		653,653		287		1,954		1,750		763,073		742,349		655,403
Mixed use and other	1,791,349		1,726,125		1,543,691		4,368		6,691		8,872		1,795,717		1,732,816		1,552,563
PCI - commercial real estate(1)	163,350		157,999		66,672		—		—		—		163,350		157,999		66,672
Total commercial real estate	5,709,703		5,502,644		4,680,504		28,256		26,645		29,982		5,737,959		5,529,289		4,710,486
Home equity	764,977		777,827		701,618		9,365		6,848		7,665		774,342		784,675		709,283
Residential real estate, including PCI	614,079		595,408		481,677		11,964		12,043		14,248		626,043		607,451		495,925
Premium finance receivables
Commercial insurance loans	2,296,089		2,350,066		2,295,659		24,898		24,855		23,964		2,320,987		2,374,921		2,319,623
Life insurance loans	2,679,155		2,593,204		1,986,606		1,641		—		—		2,680,796		2,593,204		1,986,606
PCI - life insurance loans (1)	296,138		368,292		389,048		—		—		—		296,138		368,292		389,048
Consumer and other, including PCI	119,238		145,963		129,829		664		413		327		119,902		146,376		130,156
Total loans, net of unearned income, excluding covered loans	$	17,356,914	$	17,034,060	$	14,871,287	$	89,499	$	84,057	$	81,772	$	17,446,413	$	17,118,117	$	14,953,059

(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 March 31, 2016 and 2015 is as follows:

Three months ended March 31, 2016				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	$	36,135		$	43,758		$	12,012		$	4,734		$	7,233		$	1,528		$	105,400
Other adjustments	(9		)	(76		)	—			(30		)	37			—			(78		)
Reclassification from allowance for unfunded lending-related commitments	—			(81		)	—			—			—			—			(81		)
Charge-offs	(671		)	(671		)	(1,052		)	(493		)	(2,480		)	(107		)	(5,474		)
Recoveries	629			369			48			112			787			36			1,981
Provision for credit losses	2,351			1,964			1,907			841			1,628			(268		)	8,423
Allowance for loan losses at period end	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Allowance for unfunded lending-related commitments at period end	$	—		$	1,030		$	—		$	—		$	—		$	—		$	1,030
Allowance for credit losses at period end	$	38,435		$	46,293		$	12,915		$	5,164		$	7,205		$	1,189		$	111,201
Individually evaluated for impairment	$	2,319		$	3,028		$	1,695		$	700		$	—		$	70		$	7,812
Collectively evaluated for impairment	35,448			43,261			11,220			4,384			7,205			1,119			102,637
Loans acquired with deteriorated credit quality	668			4			—			80			—			—			752
Loans at period end
Individually evaluated for impairment	$	17,969		$	52,977		$	9,365		$	16,159		$	—		$	527		$	96,997
Collectively evaluated for impairment	4,852,198			5,521,632			764,977			606,503			5,001,783			119,375			16,866,468
Loans acquired with deteriorated credit quality	20,079			163,350			—			3,381			296,138			—			482,948

Three months ended March 31, 2015	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	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(17		)	(180		)	—			(3		)	(48		)	—			(248		)
Reclassification from allowance for unfunded lending-related commitments	—			(113		)	—			—			—			—			(113		)
Charge-offs	(677		)	(1,005		)	(584		)	(631		)	(1,263		)	(111		)	(4,271		)
Recoveries	370			312			48			76			329			53			1,188
Provision for credit losses	2,351			2,455			700			436			461			(218		)	6,185
Allowance for loan losses at period end	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Allowance for unfunded lending-related commitments at period end	$	—		$	888		$	—		$	—		$	—		$	—		$	888
Allowance for credit losses at period end	$	33,726		$	37,890		$	12,664		$	4,096		$	5,992		$	966		$	95,334
Individually evaluated for impairment	$	1,814		$	3,256		$	948		$	208		$	—		$	26		$	6,252
Collectively evaluated for impairment	31,912			34,521			11,716			3,794			5,992			940			88,875
Loans acquired with deteriorated credit quality	—			113			—			94			—			—			207
Loans at period end
Individually evaluated for impairment	$	12,361		$	75,886		$	7,879		$	17,144		$	—		$	381		$	113,651
Collectively evaluated for impairment	4,190,224			4,567,928			701,404			476,418			4,306,229			129,775			14,371,978
Loans acquired with deteriorated credit quality	9,347			66,672			—			2,363			389,048			—			467,430

A summary of activity in the allowance for covered loan losses for the three months ended March 31, 2016 and 2015 is as follows:

	Three Months Ended
	March 31,			March 31,
(Dollars in thousands)	2016			2015
Balance at beginning of period	$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,946		)	(529		)
Benefit attributable to FDIC loss share agreements	1,557			423
Net provision for covered loan losses	(389		)	(106		)
Decrease in FDIC indemnification asset	(1,557		)	(423		)
Loans charged-off	(230		)	(237		)
Recoveries of loans charged-off	1,657			513
Net recoveries (charge-offs)	1,427			276
Balance at end of period	$	2,507		$	1,878

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 loss share asset or reduce any FDIC loss share liability. 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 loss share asset or increase any FDIC loss share liability. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC loss share asset or reduction to any FDIC loss share liability. 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:

	March 31,		December 31,		March 31,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,710	$	49,961	$	48,610
Impaired loans with no allowance for loan loss required	45,400		51,294		63,794
Total impaired loans (2)	$	96,110	$	101,255	$	112,404
Allowance for loan losses related to impaired loans	$	7,775	$	6,380	$	6,199
TDRs	$	52,555	$	51,853	$	67,218

(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 by loan class, excluding covered loans, for the periods ended as follows:

							For the Three Months Ended
	As of March 31, 2016						March 31, 2016
	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, industrial and other	$	9,711	$	12,905	$	2,309	$	9,527	$	207
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	5,577		9,358		49		5,583		142
Office	3,688		4,688		363		3,701		57
Industrial	8,325		9,065		1,872		8,382		115
Retail	7,757		7,775		296		7,785		83
Multi-family	1,477		1,477		128		1,050		11
Mixed use and other	4,753		4,900		293		4,761		58
Home equity	3,508		3,559		1,695		3,508		25
Residential real estate	5,726		5,957		700		5,743		61
Consumer and other	188		215		70		190		3
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	7,802	$	8,591	$	—	$	8,090	$	116
Asset-based lending	3		1,567		—		5		22
Commercial real estate
Construction	2,296		2,296		—		2,296		28
Land	2,112		2,852		—		2,116		28
Office	7,172		8,548		—		7,323		110
Industrial	3,692		3,910		—		3,686		67
Retail	1,800		2,499		—		1,806		25
Multi-family	92		175		—		148		2
Mixed use and other	3,802		4,377		—		3,886		58
Home equity	5,857		6,974		—		5,962		92
Residential real estate	10,433		12,692		—		10,481		148
Consumer and other	339		413		—		340		5
Total impaired loans, net of unearned income	$	96,110	$	114,793	$	7,775	$	96,369	$	1,463

							For the Twelve Months Ended
	As of December 31, 2015						December 31, 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, industrial and other	$	9,754	$	12,498	$	2,012	$	10,123	$	792
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,929		8,711		41		5,127		547
Office	5,050		6,051		632		5,394		314
Industrial	8,413		9,105		1,943		10,590		565
Retail	8,527		9,230		343		8,596		386
Multi-family	370		370		202		372		25
Mixed use and other	7,590		7,708		570		7,681		328
Home equity	423		435		333		351		16
Residential real estate	4,710		4,799		294		4,618		182
Consumer and other	195		220		10		216		12
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,562	$	9,915	$	—	$	9,885	$	521
Asset-based lending	8		1,570		—		5		88
Commercial real estate
Construction	2,328		2,329		—		2,316		113
Land	888		2,373		—		929		90
Office	3,500		4,484		—		3,613		237
Industrial	2,217		2,426		—		2,286		188
Retail	2,757		2,925		—		2,897		129
Multi-family	2,344		2,807		—		2,390		117
Mixed use and other	10,510		14,060		—		11,939		624
Home equity	6,424		7,987		—		5,738		288
Residential real estate	11,559		13,979		—		11,903		624
Consumer and other	197		267		—		201		12
Total impaired loans, net of unearned income	$	101,255	$	124,249	$	6,380	$	107,170	$	6,198

							For the Three Months Ended
	As of March 31, 2015						March 31, 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, industrial and other	$	7,230	$	7,830	$	1,795	$	7,465	$	92
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,475		8,090		29		4,734		127
Office	8,354		11,053		598		8,399		131
Industrial	1,402		1,487		559		1,406		20
Retail	10,259		12,286		371		10,294		128
Multi-family	2,266		2,363		241		2,273		26
Mixed use and other	7,891		10,041		1,449		7,907		116
Home equity	2,807		2,962		948		2,809		29
Residential real estate	3,728		3,934		183		3,724		45
Consumer and other	198		200		26		203		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	4,630	$	7,595	$	—	$	4,647	$	125
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	2,645		2,645		—		2,645		30
Land	5,134		5,868		—		5,137		62
Office	6,890		6,965		—		6,971		77
Industrial	2,772		3,134		—		2,837		55
Retail	5,053		9,130		—		5,315		105
Multi-family	777		1,199		—		778		13
Mixed use and other	17,479		17,723		—		17,688		185
Home equity	5,072		6,771		—		5,126		70
Residential real estate	13,159		14,644		—		13,190		145
Consumer and other	183		249		—		145		3
Total impaired loans, net of unearned income	$	112,404	$	136,169	$	6,199	$	113,693	$	1,588

TDRs

At March 31, 2016, the Company had $52.6 million in loans modified in TDRs. The $52.6 million in TDRs represents 102 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 6 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 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.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless 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 March 31, 2016 and approximately $3.1 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 March 31, 2016 and 2015, the Company recorded $90,000 and $193,000, respectively, in interest income representing this decrease 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 March 31, 2016, the Company had $13.3 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 months ended March 31, 2016 and 2015, respectively, which represent TDRs:

Three months ended March 31, 2016 (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, industrial and other	1	$	42	1	$	42	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		—	—		—	—		—	—
Industrial	6	7,921		6	7,921		3	7,196		—	—		—	—
Mixed use and other	2	150		2	150		—	—		—	—		—	—
Residential real estate and other	1	160		—	—		1	160		—	—		—	—
Total loans	11	$	8,723	10	$	8,563	4	$	7,356	—	$	—	—	$	—

Three months ended March 31, 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, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	3	294		3	294		2	80		1	50		—	—
Total loans	3	$	294	3	$	294	2	$	80	1	$	50	—	$	—

(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 March 31, 2016, 11 loans totaling $8.7 million were determined to be TDRs, compared to three loans totaling $294,000 in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately three months during the quarter ended March 31, 2016 compared to 17 months for the quarter ended March 31, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 17 basis points and 180 basis points during the three months ending March 31, 2016 and 2015, respectively. Interest-only payment terms were approximately 24 months during the three months ending March 31, 2016. Additionally, no principal balances were forgiven in the first quarters of 2016 and 2015.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended March 31, 2016 and 2015, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of March 31, 2016			Three Months Ended March 31, 2016			As of March 31, 2015		Three Months Ended March 31, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Total (1)(3)		Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance	Count	Balance
Commercial
Commercial, industrial and other	1	$	42	—	$	—	1	1,461	—	$	—
Commercial real estate
Office	1	450		1	450		2	1,510	1	790
Industrial	7	8,090		3	725		1	685	—	—
Multi-family	—	—		—	—		1	181	1	181
Mixed use and other	4	351		3	217		4	1,049	3	816
Residential real estate and other	7	1,530		—	—		9	2,131	2	261
Total loans	20	$	10,463	7	$	1,392	18	7,017	7	$	2,048

(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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Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2016

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, 2016		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			March 31, 2016
Community banking	$	401,612	$	11,305	$	—	$	(195	)	$	412,722
Specialty finance	38,035		—		—		1,409			39,444
Wealth management	32,114		—		—		—			32,114
Total	$	471,761	$	11,305	$	—	$	1,214		$	484,280

The community banking segment's goodwill increased $11.1 million in the first three months of 2016 primarily as a result of the acquisition of Generations. The specialty finance segment's goodwill increased $1.4 million in the first three months of 2016 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of March 31, 2016 is as follows:

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	35,654		$	34,841		$	25,881
Accumulated amortization	(18,543		)	(17,382		)	(14,192		)
Net carrying amount	$	17,111		$	17,459		$	11,689
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,076		)	(1,052		)	(971		)
Net carrying amount	$	724		$	748		$	829
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,050		)	(1,938		)	(1,600		)
Net carrying amount	$	5,890		$	6,002		$	6,340
Total other intangible assets, net	$	23,725		$	24,209		$	18,858

Estimated amortization
Actual in three months ended March 31, 2016	$	1,298
Estimated remaining in 2016	3,477
Estimated—2017	4,013
Estimated—2018	3,493
Estimated—2019	2,961
Estimated—2020	2,410

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 $1.3 million and $1.0 million for the three months ended March 31, 2016 and 2015, respectively.

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Deposits

3 Months Ended

Mar. 31, 2016

Deposits [Abstract]

Deposits

Deposits

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

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Balance:
Non-interest bearing	$	5,205,410		$	4,836,420		$	3,779,609
NOW and interest bearing demand deposits	2,369,474			2,390,217			2,262,928
Wealth management deposits	1,761,710			1,643,653			1,528,963
Money market	4,157,083			4,041,300			3,791,762
Savings	1,766,552			1,723,367			1,563,752
Time certificates of deposit	3,956,842			4,004,677			4,011,755
Total deposits	$	19,217,071		$	18,639,634		$	16,938,769
Mix:
Non-interest bearing	27		%	26		%	22		%
NOW and interest bearing demand deposits	12			13			13
Wealth management deposits	9			9			9
Money market	22			22			23
Savings	9			9			9
Time certificates of deposit	21			21			24
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 Company and brokerage customers from unaffiliated companies.

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes

3 Months Ended

Mar. 31, 2016

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)	March 31, 2016		December 31, 2015		March 31, 2015
Federal Home Loan Bank advances	$	799,482	$	853,431	$	406,839
Other borrowings:
Notes payable	63,683		67,429		—
Short-term borrowings	47,680		63,887		50,076
Other	18,811		18,965		18,538
Secured borrowings	122,952		115,504		118,102
Total other borrowings	253,126		265,785		186,716
Subordinated notes	138,888		138,861		138,782
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	1,191,496	$	1,258,077	$	732,337

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 prepayment fees paid at the time of prior restructurings of FHLB advances and unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

Notes Payable

At March 31, 2016, notes payable represented a $63.7 million term facility ("Term Facility"), which is part of a $150.0 million loan agreement ("Credit Agreement") with unaffiliated banks dated December 15, 2014. The Credit Agreement consists of the Term Facility with an original outstanding balance of $75.0 million and a $75.0 million revolving credit facility ("Revolving Credit Facility"). At March 31, 2016, the Company had a balance of $63.7 million compared to a $67.4 million balance at December 31, 2015 and no balance at March 31, 2015 under the Term Facility. The Term Facility is stated at par of the current outstanding balance of the debt adjusted for unamortized costs paid by the Company in relation to the debt issuance. 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 was required to make straight-line quarterly amortizing payments on the Term Facility. At March 31, 2016, December 31, 2015 and March 31, 2015, the Company had no outstanding balance under the Revolving Credit Facility. As no outstanding balance exists on the Revolving Credit Facility, unamortized costs paid by the Company in relation to the issuance of this debt are classified in other assets on the Consolidated Statements of Condition. In December 2015, the Company amended the Credit Agreement, effectively extending the maturity date on the Revolving Credit Facility from December 14, 2015 to December 12, 2016.

Borrowings under the Credit 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.

Borrowings under the Credit Agreement 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 March 31, 2016, after giving effect to the limited waiver discussed in Note 17 - Regulatory Matters, 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.

Short-term Borrowings

Short-term borrowings include securities sold under repurchase agreements and federal funds purchased. These borrowings totaled $47.7 million at March 31, 2016 compared to $63.9 million at December 31, 2015 and $50.1 million at March 31, 2015. At March 31, 2016, December 31, 2015 and March 31, 2015, securities sold under repurchase agreements represent $47.7 million, $58.9 million and $50.1 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 March 31, 2016, the Company had pledged securities related to its customer balances in sweep accounts of $60.4 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 and held-to-maturity securities portfolios as reflected on the Company’s Consolidated Statements of Condition.

The following is a summary of these securities pledged as of March 31, 2016 disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
U.S. Treasury	$	9,992
Corporate notes:
Financial issuers	4,937
Mortgage-backed securities	33,943
Held-to-maturity securities pledged
U.S. Government agencies	11,547
Total collateral pledged	$	60,419
Excess collateral	12,739
Securities sold under repurchase agreements	$	47,680

Other Borrowings

Other borrowings at March 31, 2016 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, and non-recourse notes issued by the Company to other banks related to certain capital leases. At March 31, 2016, the Fixed-Rate Promissory Note had a balance of $18.1 million compared to a balance of $18.3 million and $18.5 million at December 31, 2015 and March 31, 2015, 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. At March 31, 2016 and December 31, 2015, the non-recourse notes related to certain capital leases totaled $662,000 and $732,000, respectively.

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 Receivables Purchase Agreement was amended in December 2015, effectively extending the maturity date from December 15, 2015 to December 15, 2017. Additionally, at that time, the unrelated third party paid an additional C$10 million, which increased the total payments to C$160 million. These transactions were not considered sales of receivables and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party, net of unamortized debt issuance costs, and translated to the Company’s reporting currency as of the respective date. At March 31, 2016, the translated balance of the secured borrowing totaled $123.0 million compared to $115.5 million at December 31, 2015 and $118.1 million at March 31, 2015. Additionally, the interest rate under the Receivables Purchase Agreement at March 31, 2016 was 1.5322%.

Subordinated Notes

At March 31, 2016, the Company had outstanding subordinated notes totaling $138.9 million compared to $138.9 million and $138.8 million outstanding at December 31, 2015 and March 31, 2015, respectively. The notes have a stated interest rate of 5.00% and mature in June 2024. These notes are stated at par adjusted for unamortized costs paid related to the issuance of this debt.

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Junior Subordinated Debentures

3 Months Ended

Mar. 31, 2016

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Junior Subordinated Debentures

Junior Subordinated Debentures

As of March 31, 2016, the Company owned 100% of the common securities of eleven 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, First Northwest Capital Trust I, Suburban Illinois Capital Trust II, and Community Financial Shares Statutory Trust II (the “Trusts”) set up to provide long-term financing. The Northview, Town, First Northwest, Suburban, and Community Financial Shares capital trusts were acquired as part of the acquisitions of Northview Financial Corporation, Town Bankshares, Ltd., First Northwest Bancorp, Inc., Suburban and CFIS, 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.

In January 2016, the Company acquired $15.0 million of the $40.0 million of trust preferred securities issued by Wintrust Capital Trust VIII from a third-party investor. The purchase effectively extinguished $15.0 million of junior subordinated debentures related to Wintrust Capital Trust VIII and resulted in a $4.3 million gain from the early extinguishment of debt.

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 March 31, 2016. 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 3/31/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.87	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.43	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.23	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.58	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.08	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.26	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.63	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.38	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.25	%	06/2007	09/2037	06/2012
Total					$	253,566		2.83	%

The junior subordinated debentures totaled $253.6 million at March 31, 2016 compared to $268.6 million at December 31, 2015 and $249.5 million at March 31, 2015.

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 March 31, 2016, the weighted average contractual interest rate on the junior subordinated debentures was 2.83%. 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 March 31, 2016, was 3.71%. 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. 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 December 31, 2015, $65.1 million and $195.4 million of the junior subordinated debentures, net of common securities, were included in the Company's Tier 1 and Tier 2 regulatory capital, respectively. At March 31, 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 in 2016, none of the junior subordinated debentures qualified as Tier 1 regulatory capital of the Company resulting in $245.5 million of the junior subordinated debentures, net of common securities, being included in the Company's Tier 2 regulatory capital.

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Segment Information

3 Months Ended

Mar. 31, 2016

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 and leases originated by the specialty finance segment and sold or assigned 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 those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2015 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)	March 31, 2016			March 31, 2015
Net interest income:
Community Banking	$	141,698		$	122,681		$	19,017		16	%
Specialty Finance	21,180			21,046			134			1
Wealth Management	4,483			4,189			294			7
Total Operating Segments	167,361			147,916			19,445			13
Intersegment Eliminations	4,148			3,975			173			4
Consolidated net interest income	$	171,509		$	151,891		$	19,618		13	%
Non-interest income:
Community Banking	$	45,667		$	44,912		$	755		2	%
Specialty Finance	12,403			7,871			4,532			58
Wealth Management	18,752			18,728			24			—
Total Operating Segments	76,822			71,511			5,311			7
Intersegment Eliminations	(8,070		)	(6,970		)	(1,100		)	(16	)
Consolidated non-interest income	$	68,752		$	64,541		$	4,211		7	%
Net revenue:
Community Banking	$	187,365		$	167,593		$	19,772		12	%
Specialty Finance	33,583			28,917			4,666			16
Wealth Management	23,235			22,917			318			1
Total Operating Segments	244,183			219,427			24,756			11
Intersegment Eliminations	(3,922		)	(2,995		)	(927		)	(31	)
Consolidated net revenue	$	240,261		$	216,432		$	23,829		11	%
Segment profit:
Community Banking	$	34,757		$	24,965		$	9,792		39	%
Specialty Finance	11,472			10,952			520			5
Wealth Management	2,882			3,135			(253		)	(8	)
Consolidated net income	$	49,111		$	39,052		$	10,059		26	%
Segment assets:
Community Banking	$	19,575,709		$	17,039,668		$	2,536,041		15	%
Specialty Finance	3,322,807			2,783,958			538,849			19
Wealth Management	589,652			547,940			41,712			8
Consolidated total assets	$	23,488,168		$	20,371,566		$	3,116,602		15	%

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2016

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 March 31, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	March 31, 2016
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	—
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	—
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	15
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	2
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	34
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	30
		$	796,500		$	81

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 March 31, 2016, December 31, 2015 and March 31, 2015:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	64	$	242	$	668	$	586	$	846	$	1,867
Interest rate derivatives designated as Fair Value Hedges	—		27		20		670		143		—
Total derivatives designated as hedging instruments under ASC 815	$	64	$	269	$	688	$	1,256	$	989	$	1,867
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	73,921	$	42,510	$	46,862	$	72,763	$	41,469	$	45,831
Interest rate lock commitments	12,104		7,401		15,296		3,574		171		—
Forward commitments to sell mortgage loans	—		745		—		3,857		2,275		7,410
Foreign exchange contracts	248		373		138		262		115		117
Total derivatives not designated as hedging instruments under ASC 815	$	86,273	$	51,029	$	62,296	$	80,456	$	44,030	$	53,358
Total Derivatives	$	86,337	$	51,298	$	62,984	$	81,712	$	45,019	$	55,225

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 March 31, 2016, 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 three months ended March 31, 2016 or March 31, 2015. 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 March 31, 2016:

	March 31, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	$	50,000	$	(370	)
October 2016	25,000		(216		)
Total Interest Rate Swaps	$	75,000	$	(586	)
Interest Rate Caps:
August 2016	43,500		—
August 2016	216,500		—
September 2017	50,000		34
September 2017	40,000		30
Total Interest Rate Caps	$	350,000	$	64
Total Cash Flow Hedges	$	425,000	$	(522	)

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

	Three months ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Unrealized loss at beginning of period	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	723			414
Amount of loss recognized in other comprehensive income	(245		)	(975		)
Unrealized loss at end of period	$	(3,051	)	$	(4,623	)

As of March 31, 2016, the Company estimates that during the next twelve months, $2.3 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 March 31, 2016, the Company has four interest rate swaps with an aggregate notional amount of $20.8 million that were designated as fair value hedges associated with fixed rate commercial and industrial and 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 loss of $39,000 in other income related to hedge ineffectiveness for the three months ended March 31, 2016 and a $4,000 net loss for the three months ended March 31, 2015.

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 the interest rate cap derivative 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 in the three month periods ended March 31, 2016 and 2015, 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 March 31, 2016 and 2015:

(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
		March 31, 2016			March 31, 2015			March 31, 2016		March 31, 2015		March 31, 2016			March 31, 2015
Interest rate swaps	Trading (losses) gains, net	$	(554	)	$	(32	)	$	515	$	28	$	(39	)	$	(4	)

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 March 31, 2016, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $3.7 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 April 2016 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 March 31, 2016, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $982.4 million and interest rate lock commitments with an aggregate notional amount of approximately $623.4 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 to facilitate the respective risk management strategies of certain customer's foreign currency 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. For certain foreign currency contracts with customers, the Company simultaneously executes offsetting derivatives with third parties. These offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. As of March 31, 2016 the Company held foreign currency derivatives with an aggregate notional amount of approximately $21.5 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 as other non-interest income. There were no covered call options outstanding as of March 31, 2016, December 31, 2015 or March 31, 2015.

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 March 31, 2016, 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
Derivative	Location in income statement	March 31, 2016			March 31, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	76		$	(450	)
Mortgage banking derivatives	Mortgage banking revenue	1,864			2,094
Covered call options	Fees from covered call options	1,712			4,360
Foreign exchange contracts	Trading (losses) gains, net	(63		)	(51		)

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 March 31, 2016 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 $75.6 million. If at March 31, 2016 the Company had breached any of these provisions and the derivative positions were terminated as a result, the Company 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 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)	March 31, 2016			December 31, 2015			March 31, 2015			March 31, 2016			December 31, 2015			March 31, 2015
Gross Amounts Recognized	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(156		)	(753		)	(1,563		)	(156		)	(753		)	(1,563		)
Collateral Posted (1)	—			—			—			(73,863		)	(41,705		)	(46,135		)
Net Credit Exposure	$	73,829		$	42,026		$	45,987		$	—		$	—		$	—

(1) As of March 31, 2016, December 31, 2015 and March 31, 2015, the Company posted collateral of$81.6 million, $45.5 million and $51.3 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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Fair Values of Assets and Liabilities

3 Months Ended

Mar. 31, 2016

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 March 31, 2016, the Company classified $70.2 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 first quarter of 2016, 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 March 31, 2016 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 March 31, 2016, the Company held $24.1 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a market spread derived from the market price of the securities underlying debt. At March 31, 2016, the Company considered three different securities whose implied market spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The market spreads ranged from 2.81%-3.13% with an average of 2.98% which was added to three-month LIBOR to be used as the discount rate input to the Company'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 valuation model which calculates the fair value of each servicing rights based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing rights, given current market conditions. At March 31, 2016, the Company classified $10.1 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the mortgage servicing rights at March 31, 2016 was 6.20% with discount rates applied ranging from 4%-7%. 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 1%-46% or a weighted average prepayment speed of 11.39% used as an input to value the mortgage servicing rights at March 31, 2016. 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:

	March 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	117,089	$	—	$	117,089	$	—
U.S. Government agencies	94,172		—		94,172		—
Municipal	121,195		—		50,953		70,242
Corporate notes	80,213		—		80,213		—
Mortgage-backed	302,695		—		302,695		—
Equity securities	55,619		—		31,565		24,054
Trading account securities	2,116		—		2,116		—
Mortgage loans held-for-sale	314,554		—		314,554		—
Mortgage servicing rights	10,128		—		—		10,128
Nonqualified deferred compensation assets	8,926		—		8,926		—
Derivative assets	86,337		—		86,337		—
Total	$	1,193,044	$	—	$	1,088,620	$	104,424
Derivative liabilities	$	81,712	$	—	$	81,712	$	—

	December 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	306,729	$	—	$	306,729	$	—
U.S. Government agencies	70,236		—		70,236		—
Municipal	108,595		—		39,982		68,613
Corporate notes	81,545		—		81,545		—
Mortgage-backed	1,092,597		—		1,092,597		—
Equity securities	56,686		—		31,487		25,199
Trading account securities	448		—		448		—
Mortgage loans held-for-sale	388,038		—		388,038		—
Mortgage servicing rights	9,092		—		—		9,092
Nonqualified deferred compensation assets	8,517		—		8,517		—
Derivative assets	51,298		—		51,298		—
Total	$	2,173,781	$	—	$	2,070,877	$	102,904
Derivative liabilities	$	45,019	$	—	$	45,019	$	—

	March 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	271,474	$	—	$	271,474	$	—
U.S. Government agencies	661,793		—		661,793		—
Municipal	269,912		—		213,863		56,049
Corporate notes	133,814		—		133,814		—
Mortgage-backed	329,591		—		329,591		—
Equity securities	54,446		—		29,790		24,656
Trading account securities	7,811		—		7,811		—
Mortgage loans held-for-sale	446,355		—		446,355		—
Mortgage servicing rights	7,852		—		—		7,852
Nonqualified deferred compensation assets	8,718		—		8,718		—
Derivative assets	62,984		—		62,984		—
Total	$	2,254,750	$	—	$	2,166,193	$	88,557
Derivative liabilities	$	55,225	$	—	$	55,225	$	—

The aggregate remaining contractual principal balance outstanding as of March 31, 2016, December 31, 2015 and March 31, 2015 for mortgage loans held-for-sale measured at fair value under ASC 825 was $299.0 million, $372.0 million and $421.2 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $314.6 million, $388.0 million and $446.4 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 March 31, 2016, December 31, 2015 and March 31, 2015.

The changes in Level 3 assets measured at fair value on a recurring basis during the three months ended March 31, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	9,092
Total net gains (losses) included in:
Net income (1)	—			—			1,036
Other comprehensive income	(13		)	(1,145		)	—
Purchases	3,271			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(1,629		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at March 31, 2016	$	70,242		$	24,054		$	10,128

				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)	—			—		(583		)
Other comprehensive income	203			945		—
Purchases	6,674			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(9,781		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852

(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 March 31, 2016.

	March 31, 2016								Three Months Ended March 31, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	66,008	$	—	$	—	$	66,008	$	2,333
Other real estate owned, including covered other real estate owned (1)	58,978		—		—		58,978		1,087
Total	$	124,986	$	—	$	—	$	124,986	$	3,420

(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 modified in a TDR 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 inputs 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 March 31, 2016, the Company had $96.1 million of impaired loans classified as Level 3. Of the $96.1 million of impaired loans, $66.0 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $30.1 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 that are adjusted by a discount representing the estimated cost of sale and is therefore considered a Level 3 valuation.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs for non-covered other real estate owned and covered other real estate owned. At March 31, 2016, the Company had $59.0 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the 10% reduction to the appraisal value representing the estimated cost of sale of the foreclosed property. A higher discount for the estimated cost of sale results in a decreased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at March 31, 2016 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	$	70,242	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,054		Discounted cash flows	Discount rate	2.81%-3.13%	2.98%	Decrease
Mortgage Servicing Rights	10,128		Discounted cash flows	Discount rate	4%-7%	6.20%	Decrease
				Constant prepayment rate (CPR)	1%-46%	11.39%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	66,008	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	58,978		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease

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 March 31, 2016				At December 31, 2015				At March 31, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	212,300	$	212,300	$	275,795	$	275,795	$	290,872	$	290,872
Interest bearing deposits with banks	817,013		817,013		607,782		607,782		697,799		697,799
Available-for-sale securities	770,983		770,983		1,716,388		1,716,388		1,721,030		1,721,030
Held-to-maturity securities	911,715		924,344		884,826		878,111		—		—
Trading account securities	2,116		2,116		448		448		7,811		7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222		113,222		101,581		101,581		92,948		92,948
Brokerage customer receivables	28,266		28,266		27,631		27,631		25,287		25,287
Mortgage loans held-for-sale, at fair value	314,554		314,554		388,038		388,038		446,355		446,355
Total loans	17,585,261		18,551,606		17,266,790		18,106,829		15,162,753		15,868,532
Mortgage servicing rights	10,128		10,128		9,092		9,092		7,852		7,852
Nonqualified deferred compensation assets	8,926		8,926		8,517		8,517		8,718		8,718
Derivative assets	86,337		86,337		51,298		51,298		62,984		62,984
FDIC indemnification asset	—		—		—		—		10,224		10,224
Accrued interest receivable and other	202,018		202,018		193,092		193,092		181,998		181,998
Total financial assets	$	21,062,839	$	22,041,813	$	21,531,278	$	22,364,602	$	18,716,631	$	19,422,410
Financial Liabilities
Non-maturity deposits	$	15,260,229	$	15,260,229	$	14,634,957	$	14,634,957	$	12,927,014	$	12,927,014
Deposits with stated maturities	3,956,842		3,956,157		4,004,677		3,998,180		4,011,755		4,017,565
Federal Home Loan Bank advances	799,482		807,265		853,431		863,437		406,839		422,305
Other borrowings	253,126		253,126		265,785		265,785		186,716		186,716
Subordinated notes	138,888		139,849		138,861		140,302		138,782		147,851
Junior subordinated debentures	253,566		254,290		268,566		268,046		249,493		250,196
Derivative liabilities	81,712		81,712		45,019		45,019		55,225		55,225
FDIC indemnification liability	10,029		10,029		6,100		6,100		—		—
Accrued interest payable	9,208		9,208		7,394		7,394		8,583		8,583
Total financial liabilities	$	20,763,082	$	20,771,865	$	20,224,790	$	20,229,220	$	17,984,407	$	18,015,455

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 and liability, 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.

Held-to-maturity securities. Held-to-maturity securities include U.S. Government-sponsored agency securities and municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin. Fair values for held-to-maturity securities are typically based on prices obtained from independent pricing vendors. In accordance with ASC 820, the Company has categorized held-to-maturity securities as a Level 2 fair value measurement.

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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Stock-Based Compensation Plans

3 Months Ended

Mar. 31, 2016

Share-based Compensation [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

In May 2015, the Company’s shareholders approved the 2015 Stock Incentive Plan (“the 2015 Plan”) which provides for the issuance of up to 5,485,000 shares of common stock. The 2015 Plan replaced the 2007 Stock Incentive Plan (“the 2007 Plan”) which replaced the 1997 Stock Incentive Plan (“the 1997 Plan”). The 2015 Plan, the 2007 Plan and the 1997 Plan are collectively referred to as “the Plans.” The 2015 Plan has substantially similar terms to the 2007 Plan and the 1997 Plan. 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, non-qualified 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 non-qualified stock options and time-vested restricted share unit awards (“restricted shares”). The grants of options provide for the purchase of shares of the Company’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 with 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 non-qualified 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 awards granted in 2015 and 2016) or 200% (for awards granted prior to 2015) 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 and issued. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company. Shares that are vested but not issuable pursuant to deferred compensation arrangements accrue additional shares based on the value of dividends otherwise paid.

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 three month periods ending March 31, 2016 and 2015.

	Three Months Ended
	March 31,		March 31,
	2016		2015
Expected dividend yield	0.9	%	0.9	%
Expected volatility	25.2	%	26.5	%
Risk-free rate	1.3	%	1.3	%
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 actual 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 $2.5 million in the first quarter of 2016 and $2.2 million in the first quarter of 2015.

A summary of the Company's stock option activity for the three months ended March 31, 2016 and March 31, 2015 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2016	1,551,734		$	41.32
Granted	554,107		40.87
Exercised	(19,110	)	32.86
Forfeited or canceled	(57,004	)	51.08
Outstanding at March 31, 2016	2,029,727		$	41.00	5.0	$	7,951
Exercisable at March 31, 2016	983,659		$	39.13	3.8	$	5,885

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	487,259		44.11
Exercised	(51,522	)	31.50
Forfeited or canceled	(175,579	)	54.40
Outstanding at March 31, 2015	1,894,948		$	42.35	4.6	$	11,649
Exercisable at March 31, 2015	1,158,991		$	41.00	3.3	$	9,291

(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 three months ended March 31, 2016 and March 31, 2015 was $8.60 and $9.68, respectively. The aggregate intrinsic value of options exercised during the three months ended March 31, 2016 and 2015, was $196,000 and $744,000, respectively.

A summary of the Plans' restricted share activity for the three months endedMarch 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	137,593		$	49.63	146,112		$	47.45
Granted	10,516		40.77		12,300		44.11
Vested and issued	(3,726	)	43.87		(4,925	)	36.74
Outstanding at March 31	144,383		$	49.14	153,487		$	47.53
Vested, but not issuable at March 31	88,493		$	51.43	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the three months ended March 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	276,533		$	43.01	295,679		$	38.18
Granted	116,576		40.87		102,828		44.11
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(7,417	)	39.32		(29,926	)	31.41
Outstanding at March 31	307,282		$	43.59	289,991		$	42.90
Vested, but deferred at March 31	6,612		$	37.85	—		$	—

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

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Shareholders' Equity and Earnings Per Share

3 Months Ended

Mar. 31, 2016

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 a public offering. When, as and 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 a public offering. When, as and 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 quarter of 2016, pursuant to such terms, 30 shares of the Series C Preferred Stock were converted at the option of the respective holders into 729 shares of the Company's common stock. In 2015, pursuant to such terms, 180 shares of the Series C Preferred Stock were converted at the option of the respective holders into 4,374 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 three months of 2016, no warrant shares were exercised. At March 31, 2016, all remaining holders of the interest in the warrant were able to exercise 367,432 warrant shares.

Other

In July 2015, the Company issued 388,573 shares of its common stock in the acquisition of CFIS. In January 2015, the Company issued 422,122 shares of its common stock in the acquisition of Delavan.

At the January 2016 Board of Directors meeting, a quarterly cash dividend of $0.12 per share ($0.48 on an annualized basis) was

declared. It was paid on February 25, 2016 to shareholders of record as of February 11, 2016.

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 January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,188			(149		)	6,038			21,077
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(804		)	439			—			(365		)
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,086			—			—			2,086
Net other comprehensive income (loss) during the period, net of tax	$	16,470		$	290		$	6,038		$	22,798
Balance at March 31, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,945			(593		)	(9,045		)	6,307
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(318		)	252			—			(66		)
Net other comprehensive income (loss) during the period, net of tax	$	15,627		$	(341	)	$	(9,045	)	$	6,241
Balance at March 31, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Impacted Line on the Consolidated Statements of Income
	March 31,
	2016			2015
Accumulated unrealized losses on securities
Gains included in net income	$	1,325		$	524		Gains on available-for-sale securities, net
	1,325			524			Income before taxes
Tax effect	$	(521	)	$	(206	)	Income tax expense
Net of tax	$	804		$	318		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	255		$	—		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	468			414			Interest on junior subordinated debentures
	(723		)	(414		)	Income before taxes
Tax effect	$	284		$	162		Income tax expense
Net of tax	$	(439	)	$	(252	)	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
(In thousands, except per share data)		March 31, 2016		March 31, 2015
Net income		$	49,111	$	39,052
Less: Preferred stock dividends and discount accretion		3,628		1,581
Net income applicable to common shares—Basic	(A)	45,483		37,471
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,581
Net income applicable to common shares—Diluted	(B)	47,061		39,052
Weighted average common shares outstanding	(C)	48,448		47,239
Effect of dilutive potential common shares
Common stock equivalents		750		1,158
Convertible preferred stock, if dilutive		3,070		3,075
Total dilutive potential common shares		3,820		4,233
Weighted average common shares and effect of dilutive potential common shares	(D)	52,268		51,472
Net income per common share:
Basic	(A/C)	$	0.94	$	0.79
Diluted	(B/D)	$	0.90	$	0.76

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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Regulatory Matters

3 Months Ended

Mar. 31, 2016

Regulatory Capital Requirements [Abstract]

Regulatory Capital Requirements under Banking Regulations

Regulatory Matters

The Company is a bank holding company that has elected to be treated by the Federal Reserve as a financial holding company for purposes of the Bank Holding Company Act of 1956 (as amended, the “BHC Act”). The activities of bank holding companies generally are limited to the business of banking, managing or controlling banks, and other activities determined by the Federal Reserve, by regulation or order prior to November 11, 1999, to be so closely related to banking as to be a proper incident thereto. Impermissible activities for bank holding companies and their subsidiaries include activities that are related to commerce, such as retail sales of nonfinancial products or manufacturing.

As a financial holding company, we may engage in an expanded range of activities, including securities and insurance activities conducted as agent or principal that are considered to be financial in nature. Moreover, financial holding companies may engage in activities incidental or complementary to financial activities, if the Federal Reserve determines that such activities pose no substantial risk to the safety or soundness of depository institutions or the financial system in general. Maintaining our financial holding company status requires that our subsidiary banks remain “well-capitalized” and “well-managed” as defined by regulation, and maintain at least a “satisfactory” rating under the Community Reinvestment Act. In addition, under the Dodd-Frank Wall Street Reform and Consumer Protection Act, we must also remain well-capitalized and well-managed to maintain our financial holding company status. If we or our subsidiary banks fail to continue to meet these requirements, we could be subject to restrictions on new activities and acquisitions, and/or be required to cease and possibly divest of operations that conduct existing activities that are not permissible for a bank holding company that is not a financial holding company.

In light of these requirements, the Company consistently monitors the capitalization of its banks, utilizing the ratios required by regulatory definition: 10.0%, 8.0%, 6.5% and 5.0% for each of total capital to risk-weighted assets, Tier I capital to risk-weighted assets, common equity Tier 1 capital to risk-weighted assets and Tier 1 leverage ratio, respectively. To maintain adequate capitalization in satisfaction of these required ratios, the Company from time to time makes subordinated loans to one or more of its subsidiary banks, with a corresponding intercompany subordinated note issued by such subsidiary bank to the Company on account of each such loan. Such subordinated indebtedness is included in the Company’s calculation of its subsidiary banks’ respective Tier 2 capital.

On April 29, 2016 the Company was informed by the Office of the Comptroller of the Currency (“OCC”) that the intercompany subordinated note agreements that the Company’s subsidiary national banks utilized to issue subordinated debt did not conform with the provisions of 12 CFR 5.47(f)(ii) and OCC Bulletin 2015-22, which were issued in early 2015. This ruling impacted four of the Company’s national bank subsidiaries: Beverly Bank & Trust Company, N.A. (“Beverly Bank”), Schaumburg Bank & Trust Company, N.A. (“Schaumburg Bank”), Barrington Bank & Trust Company, N.A. (“Barrington Bank”) and Old Plank Trail Community Bank, N.A. (“Old Plank Trail Bank”).

Accordingly, the Company has recalculated the capitalization ratios of its affected subsidiary national banks to exclude subordinated debt that had been issued by such banks subsequent to January 1, 2015 from each bank’s respective Tier 2 capital. On April 29, 2016, each of these banks repaid to the Company 100% of their respective outstanding subordinated indebtedness, and the Company in turn infused corresponding amounts of capital surplus (Tier 1 capital) into the four banks as follows: (a) Beverly - $13.0 million; (b) Schaumburg - $10.3 million; (c) Barrington - $5.0 million; and (d) Old Plank - $4.0 million.

Following this effective substitution of Tier 1 capital for Tier 2 capital, the total capital to risk-weighted assets ratios of the four banks remained identical and each bank remains well capitalized. After excluding the following outstanding amounts of subordinated debt from Tier 2 capital, the recalculated total capital to risk-weighted assets ratios for each bank were as follows:

	March 31,			December 31,			September 30,			June 30,			March 31,
(Dollars in thousands)	2016			2015			2015			2015			2015
Subordinated debt excluded from Tier 2 capital
Beverly Bank	$	13,000		$	13,000		$	11,000		$	11,000		$	1,000
Schaumburg Bank	8,500			8,500			3,500			3,500			3,500
Barrington Bank	5,000			—			—			—			—
Old Plank Trail Bank	4,000			—			—			—			—
Total capital (to risk-weighted assets)
Beverly Bank	9.7		%	9.6		%	10.1		%	10.2		%	11.0		%
Schaumburg Bank	10.2			10.3			10.7			10.8			10.7
Barrington Bank	11.4			11.3			11.6			11.4			11.1
Old Plank Trail Bank	10.8			11.3			11.8			11.6			11.9

The Company believes that all of its banks have effectively been consistently well capitalized at all times during 2015 and 2016. As a technical matter under these revised ratio calculations, however, Beverly was not considered to be well capitalized at December 31, 2015 or March 31, 2016. The Company considers this to be immaterial because of the amount of subordinated indebtedness that actually was held by Beverly as of both dates, respectively, notwithstanding the required recalculation to exclude subordinated indebtedness from Tier 2 capital. Nonetheless, because the Credit Agreement requires that the Company’s banks remain well capitalized under the regulatory ratios, the Company has received a waiver from the Required Lenders under the Credit Agreement, waiving any technical default that may have existed on these dates.

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Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Basis of Accounting, Policy

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, 2015 (“2015 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 the Company's significant accounting policies are included in Note 1 - “Summary of Significant Accounting Policies” of the 2015 Form 10-K.

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 and require the Company to record loss share assets and liabilities that 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 and liabilities are recorded as FDIC indemnification assets and other liabilities, respectively, 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 and, if necessary, increase any loss share liability when necessary reductions exceed the current value of 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. On the Consolidated Statements of Condition, estimated reimbursements from clawback provisions are recorded as a reduction to the FDIC indemnification asset or, if necessary, an increase to the loss share liability, which is included within accrued interest payable and other liabilities. Although these assets are contractual receivables from the FDIC and these liabilities are contractual payables to 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.

Investment 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 March 31, 2016 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 $56.9 million at March 31, 2016, $56.7 million at December 31, 2015 and $48.1 million at March 31, 2015, 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 both included 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 and covered 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 loss share asset or reduce any FDIC loss share liability. 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 loss share asset or increase any FDIC loss share liability. Additions to expected losses will require an increase to the allowance for loan losses, and a corresponding increase to the FDIC loss share asset or reduction to any FDIC loss share liability.

Impaired Financing Receivable, Policy

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.

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.

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 modified in a TDR 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.

Loans and Leases Receivable, Troubled Debt Restructuring Policy

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 6 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 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.

All credits determined to be a TDR will continue to be classified as a TDR in all subsequent periods, unless 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 March 31, 2016 and approximately $3.1 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 March 31, 2016 and 2015, the Company recorded $90,000 and $193,000, respectively, in interest income representing this decrease 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 March 31, 2016, the Company had $13.3 million of foreclosed residential real estate properties included within OREO.

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

As no outstanding balance exists on the Revolving Credit Facility, unamortized costs paid by the Company in relation to the issuance of this debt are classified in other assets on the Consolidated Statements of Condition.

These notes are stated at par adjusted for unamortized costs paid related to the issuance of this debt.

FHLB advances are stated at par value of the debt adjusted for unamortized prepayment fees paid at the time of prior restructurings of FHLB advances and unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

The Term Facility is stated at par of the current outstanding balance of the debt adjusted for unamortized costs paid by the Company in relation to the debt issuance.

These transactions were not considered sales of receivables and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the unrelated third party, net of unamortized debt issuance costs, 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 and held-to-maturity securities portfolios 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 and leases originated by the specialty finance segment and sold or assigned 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 those described in “Summary of Significant Accounting Policies” in Note 1 of the Company’s 2015 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

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.

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.

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 the interest rate cap derivative 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 in the three month periods ended March 31, 2016 and 2015, respectively.

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

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 three months ended March 31, 2016 or March 31, 2015. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

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.

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 loss of $39,000 in other income related to hedge ineffectiveness for the three months ended March 31, 2016 and a $4,000 net loss for the three months ended March 31, 2015.

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 as other non-interest income.

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 March 31, 2016, the Company classified $70.2 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 first quarter of 2016, 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 March 31, 2016 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 March 31, 2016, the Company held $24.1 million of equity securities classified as Level 3. The securities in Level 3 are primarily comprised of auction rate preferred securities. The Company’s valuation methodology includes modeling the contractual cash flows of the underlying preferred securities and applying a discount to these cash flows by a market spread derived from the market price of the securities underlying debt. At March 31, 2016, the Company considered three different securities whose implied market spreads were believed to provide a proxy for the Company’s auction rate preferred securities. The market spreads ranged from 2.81%-3.13% with an average of 2.98% which was added to three-month LIBOR to be used as the discount rate input to the Company'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 valuation model which calculates the fair value of each servicing rights based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing rights, given current market conditions. At March 31, 2016, the Company classified $10.1 million of mortgage servicing rights as Level 3. The weighted average discount rate used as an input to value the mortgage servicing rights at March 31, 2016 was 6.20% with discount rates applied ranging from 4%-7%. 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 1%-46% or a weighted average prepayment speed of 11.39% used as an input to value the mortgage servicing rights at March 31, 2016. 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.

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 that are adjusted by a discount representing the estimated cost of sale and is therefore considered a Level 3 valuation.

Fair Value Measurement, Policy

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

Held-to-maturity securities. Held-to-maturity securities include U.S. Government-sponsored agency securities and municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin. Fair values for held-to-maturity securities are typically based on prices obtained from independent pricing vendors. In accordance with ASC 820, the Company has categorized held-to-maturity securities as a Level 2 fair value measurement.

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.

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 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.

Stock-Based Compensation, Policy

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 actual 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 $2.5 million in the first quarter of 2016 and $2.2 million in the first quarter of 2015.

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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Business Combinations (Tables)

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Summary of FDIC Indemnification Asset

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

	Three Months Ended
(Dollars in thousands)	March 31, 2016			March 31, 2015
Balance at beginning of period	$	(6,100	)	$	11,846
Additions from acquisitions	—			—
Additions from reimbursable expenses	82			1,575
Amortization	(101		)	(1,260		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(3,547		)	(3,993		)
(Payments received from) provided to the FDIC	(363		)	2,056
Balance at end of period	$	(10,029	)	$	10,224

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2016

Available-for-sale Securities and Held-to-maturity Securities [Abstract]

Marketable Securities

The following tables are a summary of the available-for-sale and held-to-maturity securities portfolios as of the dates shown:

	March 31, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	117,105	$	22	$	(38	)	$	117,089
U.S. Government agencies	93,990		194		(12		)	94,172
Municipal	118,187		3,232		(224		)	121,195
Corporate notes:
Financial issuers	78,048		1,492		(1,830		)	77,710
Other	2,500		3		—			2,503
Mortgage-backed: (1)
Mortgage-backed securities	262,109		3,795		(1,900		)	264,004
Collateralized mortgage obligations	38,565		324		(198		)	38,691
Equity securities	51,402		4,585		(368		)	55,619
Total available-for-sale securities	$	761,906	$	13,647	$	(4,570	)	$	770,983
Held-to-maturity securities
U.S. Government agencies	$	712,732	$	11,569	$	(1,455	)	$	722,846
Municipal	198,983		2,672		(157		)	201,498
Total held-to-maturity securities	$	911,715	$	14,241	$	(1,612	)	$	924,344

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	312,282	$	—	$	(5,553	)	$	306,729
U.S. Government agencies	70,313		198		(275		)	70,236
Municipal	105,702		3,249		(356		)	108,595
Corporate notes:
Financial issuers	80,014		1,510		(1,481		)	80,043
Other	1,500		4		(2		)	1,502
Mortgage-backed: (1)
Mortgage-backed securities	1,069,680		3,834		(21,004		)	1,052,510
Collateralized mortgage obligations	40,421		172		(506		)	40,087
Equity securities	51,380		5,799		(493		)	56,686
Total available-for-sale securities	$	1,731,292	$	14,766	$	(29,670	)	$	1,716,388
Held-to-maturity securities
U.S. Government agencies	$	687,302	$	4	$	(7,144	)	$	680,162
Municipal	197,524		867		(442		)	197,949
Total held-to-maturity securities	$	884,826	$	871	$	(7,586	)	$	878,111

	March 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	273,173	$	148	$	(1,847	)	$	271,474
U.S. Government agencies	665,177		5,348		(8,732		)	661,793
Municipal	264,949		6,485		(1,522		)	269,912
Corporate notes:
Financial issuers	129,360		1,965		(1,321		)	130,004
Other	3,759		52		(1		)	3,810
Mortgage-backed: (1)
Mortgage-backed securities	280,679		5,983		(2,529		)	284,133
Collateralized mortgage obligations	45,299		435		(276		)	45,458
Equity securities	48,717		5,979		(250		)	54,446
Total available-for-sale securities	$	1,711,113	$	26,395	$	(16,478	)	$	1,721,030
Held-to-maturity securities
U.S. Government agencies	$	—	$	—	$	—		$	—
Municipal	—		—		—			—
Total held-to-maturity securities	$	—	$	—	$	—		$	—

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

Investment Securities, Continuous Unrealized Loss Position, Fair Value

The following table presents the portion of the Company’s available-for-sale and held-to-maturity securities portfolios which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016:

	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
Available-for-sale securities
U.S. Treasury	$	75,049	$	(38	)	$	—	$	—		$	75,049	$	(38	)
U.S. Government agencies	13,982		(10		)	1,833		(2		)	15,815		(12		)
Municipal	18,399		(40		)	6,977		(184		)	25,376		(224		)
Corporate notes:
Financial issuers	22,952		(237		)	34,367		(1,593		)	57,319		(1,830		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	2,038		(3		)	122,371		(1,897		)	124,409		(1,900		)
Collateralized mortgage obligations	4,880		(42		)	7,803		(156		)	12,683		(198		)
Equity securities	3,964		(55		)	8,599		(313		)	12,563		(368		)
Total available-for-sale securities	$	141,264	$	(425	)	$	181,950	$	(4,145	)	$	323,214	$	(4,570	)
Held-to-maturity securities
U.S. Government agencies	$	208,405	$	(1,455	)	$	—	$	—		$	208,405	$	(1,455	)
Municipal	15,919		(125		)	4,917		(32		)	20,836		(157		)
Total held-to-maturity securities	$	224,324	$	(1,580	)	$	4,917	$	(32	)	$	229,241	$	(1,612	)

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 March 31,
(Dollars in thousands)	2016			2015
Realized gains	$	2,550		$	553
Realized losses	(1,225		)	(29		)
Net realized gains	$	1,325		$	524
Other than temporary impairment charges	—			—
Gains on available-for-sale securities, net	$	1,325		$	524
Proceeds from sales of available-for-sale securities	$	3,201		$	635,532

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of securities as of March 31, 2016, December 31, 2015 and March 31, 2015, 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:

	March 31, 2016				December 31, 2015				March 31, 2015
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	208,518	$	208,641	$	160,856	$	160,756	$	151,585	$	151,854
Due in one to five years	158,668		158,804		166,550		166,468		249,861		250,483
Due in five to ten years	28,970		31,363		228,652		225,699		837,926		836,598
Due after ten years	13,674		13,861		13,753		14,182		97,046		98,058
Mortgage-backed	300,674		302,695		1,110,101		1,092,597		325,978		329,591
Equity securities	51,402		55,619		51,380		56,686		48,717		54,446
Total available-for-sale securities	$	761,906	$	770,983	$	1,731,292	$	1,716,388	$	1,711,113	$	1,721,030
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	24,319		24,448		19,208		19,156		—		—
Due in five to ten years	65,879		66,432		96,454		96,091		—		—
Due after ten years	821,517		833,464		769,164		762,864		—		—
Total held-to-maturity securities	$	911,715	$	924,344	$	884,826	$	878,111	$	—	$	—

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Loans (Tables)

3 Months Ended

Mar. 31, 2016

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:

	March 31,			December 31,			March 31,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	4,890,246		$	4,713,909		$	4,211,932
Commercial real estate	5,737,959			5,529,289			4,710,486
Home equity	774,342			784,675			709,283
Residential real estate	626,043			607,451			495,925
Premium finance receivables—commercial	2,320,987			2,374,921			2,319,623
Premium finance receivables—life insurance	2,976,934			2,961,496			2,375,654
Consumer and other	119,902			146,376			130,156
Total loans, net of unearned income, excluding covered loans	$	17,446,413		$	17,118,117		$	14,953,059
Covered loans	138,848			148,673			209,694
Total loans	$	17,585,261		$	17,266,790		$	15,162,753
Mix:
Commercial	28		%	27		%	28		%
Commercial real estate	32			32			31
Home equity	4			5			5
Residential real estate	4			3			3
Premium finance receivables—commercial	13			14			15
Premium finance receivables—life insurance	17			17			16
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	99		%	99		%	99		%
Covered loans	1			1			1
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:

	March 31, 2016				December 31, 2015
	Unpaid Principal		Carrying		Unpaid Principal		Carrying
(Dollars in thousands)	Balance		Value		Balance		Value
Bank acquisitions	$	331,354	$	276,012	$	326,470	$	271,260
Life insurance premium finance loans acquisition	299,915		296,138		372,738		368,292

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 2016 with evidence of credit quality deterioration since origination:

(Dollars in thousands)	Foundations
Contractually required payments including interest	$	19,350
Less: Nonaccretable difference	3,640
Cash flows expected to be collected (1)	$	15,710
Less: Accretable yield	1,141
Fair value of PCI loans acquired	$	14,569

(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
(Dollars in thousands)	March 31, 2016			March 31, 2015
Accretable yield, beginning balance	$	63,902		$	79,102
Acquisitions	1,141			898
Accretable yield amortized to interest income	(5,457		)	(6,105		)
Accretable yield amortized to indemnification asset (1)	(2,171		)	(3,576		)
Reclassification from non-accretable difference (2)	4,193			1,103
Decreases in interest cash flows due to payments and changes in interest rates	(2,390		)	(1,224		)
Accretable yield, ending balance (3)	$	59,218		$	70,198

(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 March 31, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bankacquisitions is $4.8 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 (Tables)

3 Months Ended

Mar. 31, 2016

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 March 31, 2016, December 31, 2015 and March 31, 2015:

As of March 31, 2016			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, industrial and other	$	12,370	$	338	$	3,228	$	25,608	$	3,363,011	$	3,404,555
Franchise	—		—		—		1,400		273,158		274,558
Mortgage warehouse lines of credit	—		—		—		1,491		192,244		193,735
Asset-based lending	3		—		117		10,597		737,184		747,901
Leases	—		—		—		5,177		244,241		249,418
PCI - commercial (1)	—		1,893		—		128		18,058		20,079
Total commercial	12,373		2,231		3,345		44,401		4,827,896		4,890,246
Commercial real estate:
Construction	273		—		—		2,023		389,026		391,322
Land	1,746		—		—		—		93,834		95,580
Office	7,729		1,260		980		12,571		865,954		888,494
Industrial	10,960		—		—		3,935		728,061		742,956
Retail	1,633		—		2,397		2,657		890,780		897,467
Multi-family	287		—		655		2,047		760,084		763,073
Mixed use and other	4,368		—		187		12,312		1,778,850		1,795,717
PCI - commercial real estate (1)	—		24,738		1,573		10,344		126,695		163,350
Total commercial real estate	26,996		25,998		5,792		45,889		5,633,284		5,737,959
Home equity	9,365		—		791		4,474		759,712		774,342
Residential real estate, including PCI	11,964		406		193		10,108		603,372		626,043
Premium finance receivables
Commercial insurance loans	15,350		9,548		5,583		15,086		2,275,420		2,320,987
Life insurance loans	—		1,641		3,432		198		2,675,525		2,680,796
PCI - life insurance loans (1)	—		—		—		—		296,138		296,138
Consumer and other, including PCI	484		245		118		364		118,691		119,902
Total loans, net of unearned income, excluding covered loans	$	76,532	$	40,069	$	19,254	$	120,520	$	17,190,038	$	17,446,413
Covered loans	5,324		7,995		349		6,491		118,689		138,848
Total loans, net of unearned income	$	81,856	$	48,064	$	19,603	$	127,011	$	17,308,727	$	17,585,261

As of December 31, 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, industrial and other	$	12,704	$	6	$	6,749	$	12,930	$	3,226,139	$	3,258,528
Franchise	—		—		—		—		245,228		245,228
Mortgage warehouse lines of credit	—		—		—		—		222,806		222,806
Asset-based lending	8		—		3,864		1,844		736,968		742,684
Leases	—		535		748		4,192		220,599		226,074
PCI - commercial (1)	—		892		—		2,510		15,187		18,589
Total commercial	12,712		1,433		11,361		21,476		4,666,927		4,713,909
Commercial real estate
Construction	306		—		1,371		1,645		355,338		358,660
Land	1,751		—		—		120		76,546		78,417
Office	4,619		—		764		3,817		853,801		863,001
Industrial	9,564		—		1,868		1,009		715,207		727,648
Retail	1,760		—		442		2,310		863,887		868,399
Multi-family	1,954		—		597		6,568		733,230		742,349
Mixed use and other	6,691		—		6,723		7,215		1,712,187		1,732,816
PCI - commercial real estate (1)	—		22,111		4,662		16,559		114,667		157,999
Total commercial real estate	26,645		22,111		16,427		39,243		5,424,863		5,529,289
Home equity	6,848		—		1,889		5,517		770,421		784,675
Residential real estate, including PCI	12,043		488		2,166		3,903		588,851		607,451
Premium finance receivables
Commercial insurance loans	14,561		10,294		6,624		21,656		2,321,786		2,374,921
Life insurance loans	—		—		3,432		11,140		2,578,632		2,593,204
PCI - life insurance loans (1)	—		—		—		—		368,292		368,292
Consumer and other, including PCI	263		211		204		1,187		144,511		146,376
Total loans, net of unearned income, excluding covered loans	$	73,072	$	34,537	$	42,103	$	104,122	$	16,864,283	$	17,118,117
Covered loans	5,878		7,335		703		5,774		128,983		148,673
Total loans, net of unearned income	$	78,950	$	41,872	$	42,806	$	109,896	$	16,993,266	$	17,266,790

(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 March 31, 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, industrial and other	$	5,586	$	—	$	5,047	$	17,338	$	2,779,781	$	2,807,752
Franchise	—		—		—		457		225,305		225,762
Mortgage warehouse lines of credit	—		—		—		—		186,372		186,372
Asset-based lending	—		—		—		4,819		805,866		810,685
Leases	—		—		65		517		171,432		172,014
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:
Construction	—		—		—		992		255,835		256,827
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, including PCI	14,248		266		753		8,819		471,839		495,925
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, including PCI	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.

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 March 31, 2016, December 31, 2015 and March 31, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,391,847	$	3,245,818	$	2,802,166	$	12,708	$	12,710	$	5,586	$	3,404,555	$	3,258,528	$	2,807,752
Franchise	274,558		245,228		225,762		—		—		—		274,558		245,228		225,762
Mortgage warehouse lines of credit	193,735		222,806		186,372		—		—		—		193,735		222,806		186,372
Asset-based lending	747,898		742,676		810,685		3		8		—		747,901		742,684		810,685
Leases	249,418		225,539		172,014		—		535		—		249,418		226,074		172,014
PCI - commercial (1)	20,079		18,589		9,347		—		—		—		20,079		18,589		9,347
Total commercial	4,877,535		4,700,656		4,206,346		12,711		13,253		5,586		4,890,246		4,713,909		4,211,932
Commercial real estate
Construction	391,049		358,354		256,827		273		306		—		391,322		358,660		256,827
Land	93,834		76,666		86,396		1,746		1,751		2,646		95,580		78,417		89,042
Office	879,505		858,382		734,883		8,989		4,619		8,243		888,494		863,001		743,126
Industrial	731,996		718,084		600,830		10,960		9,564		3,496		742,956		727,648		604,326
Retail	895,834		866,639		737,552		1,633		1,760		4,975		897,467		868,399		742,527
Multi-family	762,786		740,395		653,653		287		1,954		1,750		763,073		742,349		655,403
Mixed use and other	1,791,349		1,726,125		1,543,691		4,368		6,691		8,872		1,795,717		1,732,816		1,552,563
PCI - commercial real estate(1)	163,350		157,999		66,672		—		—		—		163,350		157,999		66,672
Total commercial real estate	5,709,703		5,502,644		4,680,504		28,256		26,645		29,982		5,737,959		5,529,289		4,710,486
Home equity	764,977		777,827		701,618		9,365		6,848		7,665		774,342		784,675		709,283
Residential real estate, including PCI	614,079		595,408		481,677		11,964		12,043		14,248		626,043		607,451		495,925
Premium finance receivables
Commercial insurance loans	2,296,089		2,350,066		2,295,659		24,898		24,855		23,964		2,320,987		2,374,921		2,319,623
Life insurance loans	2,679,155		2,593,204		1,986,606		1,641		—		—		2,680,796		2,593,204		1,986,606
PCI - life insurance loans (1)	296,138		368,292		389,048		—		—		—		296,138		368,292		389,048
Consumer and other, including PCI	119,238		145,963		129,829		664		413		327		119,902		146,376		130,156
Total loans, net of unearned income, excluding covered loans	$	17,356,914	$	17,034,060	$	14,871,287	$	89,499	$	84,057	$	81,772	$	17,446,413	$	17,118,117	$	14,953,059

(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 March 31, 2016 and 2015 is as follows:

Three months ended March 31, 2016				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	$	36,135		$	43,758		$	12,012		$	4,734		$	7,233		$	1,528		$	105,400
Other adjustments	(9		)	(76		)	—			(30		)	37			—			(78		)
Reclassification from allowance for unfunded lending-related commitments	—			(81		)	—			—			—			—			(81		)
Charge-offs	(671		)	(671		)	(1,052		)	(493		)	(2,480		)	(107		)	(5,474		)
Recoveries	629			369			48			112			787			36			1,981
Provision for credit losses	2,351			1,964			1,907			841			1,628			(268		)	8,423
Allowance for loan losses at period end	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Allowance for unfunded lending-related commitments at period end	$	—		$	1,030		$	—		$	—		$	—		$	—		$	1,030
Allowance for credit losses at period end	$	38,435		$	46,293		$	12,915		$	5,164		$	7,205		$	1,189		$	111,201
Individually evaluated for impairment	$	2,319		$	3,028		$	1,695		$	700		$	—		$	70		$	7,812
Collectively evaluated for impairment	35,448			43,261			11,220			4,384			7,205			1,119			102,637
Loans acquired with deteriorated credit quality	668			4			—			80			—			—			752
Loans at period end
Individually evaluated for impairment	$	17,969		$	52,977		$	9,365		$	16,159		$	—		$	527		$	96,997
Collectively evaluated for impairment	4,852,198			5,521,632			764,977			606,503			5,001,783			119,375			16,866,468
Loans acquired with deteriorated credit quality	20,079			163,350			—			3,381			296,138			—			482,948

Three months ended March 31, 2015	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	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(17		)	(180		)	—			(3		)	(48		)	—			(248		)
Reclassification from allowance for unfunded lending-related commitments	—			(113		)	—			—			—			—			(113		)
Charge-offs	(677		)	(1,005		)	(584		)	(631		)	(1,263		)	(111		)	(4,271		)
Recoveries	370			312			48			76			329			53			1,188
Provision for credit losses	2,351			2,455			700			436			461			(218		)	6,185
Allowance for loan losses at period end	$	33,726		$	37,002		$	12,664		$	4,096		$	5,992		$	966		$	94,446
Allowance for unfunded lending-related commitments at period end	$	—		$	888		$	—		$	—		$	—		$	—		$	888
Allowance for credit losses at period end	$	33,726		$	37,890		$	12,664		$	4,096		$	5,992		$	966		$	95,334
Individually evaluated for impairment	$	1,814		$	3,256		$	948		$	208		$	—		$	26		$	6,252
Collectively evaluated for impairment	31,912			34,521			11,716			3,794			5,992			940			88,875
Loans acquired with deteriorated credit quality	—			113			—			94			—			—			207
Loans at period end
Individually evaluated for impairment	$	12,361		$	75,886		$	7,879		$	17,144		$	—		$	381		$	113,651
Collectively evaluated for impairment	4,190,224			4,567,928			701,404			476,418			4,306,229			129,775			14,371,978
Loans acquired with deteriorated credit quality	9,347			66,672			—			2,363			389,048			—			467,430

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 March 31, 2016 and 2015 is as follows:

	Three Months Ended
	March 31,			March 31,
(Dollars in thousands)	2016			2015
Balance at beginning of period	$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,946		)	(529		)
Benefit attributable to FDIC loss share agreements	1,557			423
Net provision for covered loan losses	(389		)	(106		)
Decrease in FDIC indemnification asset	(1,557		)	(423		)
Loans charged-off	(230		)	(237		)
Recoveries of loans charged-off	1,657			513
Net recoveries (charge-offs)	1,427			276
Balance at end of period	$	2,507		$	1,878

Summary of Impaired Loans, Including Restructured Loans

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

	March 31,		December 31,		March 31,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	50,710	$	49,961	$	48,610
Impaired loans with no allowance for loan loss required	45,400		51,294		63,794
Total impaired loans (2)	$	96,110	$	101,255	$	112,404
Allowance for loan losses related to impaired loans	$	7,775	$	6,380	$	6,199
TDRs	$	52,555	$	51,853	$	67,218

(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 by loan class, excluding covered loans, for the periods ended as follows:

							For the Three Months Ended
	As of March 31, 2016						March 31, 2016
	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, industrial and other	$	9,711	$	12,905	$	2,309	$	9,527	$	207
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	5,577		9,358		49		5,583		142
Office	3,688		4,688		363		3,701		57
Industrial	8,325		9,065		1,872		8,382		115
Retail	7,757		7,775		296		7,785		83
Multi-family	1,477		1,477		128		1,050		11
Mixed use and other	4,753		4,900		293		4,761		58
Home equity	3,508		3,559		1,695		3,508		25
Residential real estate	5,726		5,957		700		5,743		61
Consumer and other	188		215		70		190		3
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	7,802	$	8,591	$	—	$	8,090	$	116
Asset-based lending	3		1,567		—		5		22
Commercial real estate
Construction	2,296		2,296		—		2,296		28
Land	2,112		2,852		—		2,116		28
Office	7,172		8,548		—		7,323		110
Industrial	3,692		3,910		—		3,686		67
Retail	1,800		2,499		—		1,806		25
Multi-family	92		175		—		148		2
Mixed use and other	3,802		4,377		—		3,886		58
Home equity	5,857		6,974		—		5,962		92
Residential real estate	10,433		12,692		—		10,481		148
Consumer and other	339		413		—		340		5
Total impaired loans, net of unearned income	$	96,110	$	114,793	$	7,775	$	96,369	$	1,463

							For the Twelve Months Ended
	As of December 31, 2015						December 31, 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, industrial and other	$	9,754	$	12,498	$	2,012	$	10,123	$	792
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,929		8,711		41		5,127		547
Office	5,050		6,051		632		5,394		314
Industrial	8,413		9,105		1,943		10,590		565
Retail	8,527		9,230		343		8,596		386
Multi-family	370		370		202		372		25
Mixed use and other	7,590		7,708		570		7,681		328
Home equity	423		435		333		351		16
Residential real estate	4,710		4,799		294		4,618		182
Consumer and other	195		220		10		216		12
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,562	$	9,915	$	—	$	9,885	$	521
Asset-based lending	8		1,570		—		5		88
Commercial real estate
Construction	2,328		2,329		—		2,316		113
Land	888		2,373		—		929		90
Office	3,500		4,484		—		3,613		237
Industrial	2,217		2,426		—		2,286		188
Retail	2,757		2,925		—		2,897		129
Multi-family	2,344		2,807		—		2,390		117
Mixed use and other	10,510		14,060		—		11,939		624
Home equity	6,424		7,987		—		5,738		288
Residential real estate	11,559		13,979		—		11,903		624
Consumer and other	197		267		—		201		12
Total impaired loans, net of unearned income	$	101,255	$	124,249	$	6,380	$	107,170	$	6,198

							For the Three Months Ended
	As of March 31, 2015						March 31, 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, industrial and other	$	7,230	$	7,830	$	1,795	$	7,465	$	92
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	4,475		8,090		29		4,734		127
Office	8,354		11,053		598		8,399		131
Industrial	1,402		1,487		559		1,406		20
Retail	10,259		12,286		371		10,294		128
Multi-family	2,266		2,363		241		2,273		26
Mixed use and other	7,891		10,041		1,449		7,907		116
Home equity	2,807		2,962		948		2,809		29
Residential real estate	3,728		3,934		183		3,724		45
Consumer and other	198		200		26		203		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	4,630	$	7,595	$	—	$	4,647	$	125
Asset-based lending	—		—		—		—		—
Commercial real estate
Construction	2,645		2,645		—		2,645		30
Land	5,134		5,868		—		5,137		62
Office	6,890		6,965		—		6,971		77
Industrial	2,772		3,134		—		2,837		55
Retail	5,053		9,130		—		5,315		105
Multi-family	777		1,199		—		778		13
Mixed use and other	17,479		17,723		—		17,688		185
Home equity	5,072		6,771		—		5,126		70
Residential real estate	13,159		14,644		—		13,190		145
Consumer and other	183		249		—		145		3
Total impaired loans, net of unearned income	$	112,404	$	136,169	$	6,199	$	113,693	$	1,588

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 months ended March 31, 2016 and 2015, respectively, which represent TDRs:

Three months ended March 31, 2016 (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, industrial and other	1	$	42	1	$	42	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		—	—		—	—		—	—
Industrial	6	7,921		6	7,921		3	7,196		—	—		—	—
Mixed use and other	2	150		2	150		—	—		—	—		—	—
Residential real estate and other	1	160		—	—		1	160		—	—		—	—
Total loans	11	$	8,723	10	$	8,563	4	$	7,356	—	$	—	—	$	—

Three months ended March 31, 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, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	3	294		3	294		2	80		1	50		—	—
Total loans	3	$	294	3	$	294	2	$	80	1	$	50	—	$	—

(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 March 31, 2016 and 2015, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of March 31, 2016			Three Months Ended March 31, 2016			As of March 31, 2015		Three Months Ended March 31, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Total (1)(3)		Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance	Count	Balance
Commercial
Commercial, industrial and other	1	$	42	—	$	—	1	1,461	—	$	—
Commercial real estate
Office	1	450		1	450		2	1,510	1	790
Industrial	7	8,090		3	725		1	685	—	—
Multi-family	—	—		—	—		1	181	1	181
Mixed use and other	4	351		3	217		4	1,049	3	816
Residential real estate and other	7	1,530		—	—		9	2,131	2	261
Total loans	20	$	10,463	7	$	1,392	18	7,017	7	$	2,048

(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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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

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, 2016		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			March 31, 2016
Community banking	$	401,612	$	11,305	$	—	$	(195	)	$	412,722
Specialty finance	38,035		—		—		1,409			39,444
Wealth management	32,114		—		—		—			32,114
Total	$	471,761	$	11,305	$	—	$	1,214		$	484,280

Summary of Finite-Lived Intangible Assets

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of March 31, 2016 is as follows:

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	35,654		$	34,841		$	25,881
Accumulated amortization	(18,543		)	(17,382		)	(14,192		)
Net carrying amount	$	17,111		$	17,459		$	11,689
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,076		)	(1,052		)	(971		)
Net carrying amount	$	724		$	748		$	829
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,050		)	(1,938		)	(1,600		)
Net carrying amount	$	5,890		$	6,002		$	6,340
Total other intangible assets, net	$	23,725		$	24,209		$	18,858

Estimated Amortization

Estimated amortization
Actual in three months ended March 31, 2016	$	1,298
Estimated remaining in 2016	3,477
Estimated—2017	4,013
Estimated—2018	3,493
Estimated—2019	2,961
Estimated—2020	2,410

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Deposits (Tables)

3 Months Ended

Mar. 31, 2016

Deposits [Abstract]

Summary of Deposits

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

(Dollars in thousands)	March 31, 2016			December 31, 2015			March 31, 2015
Balance:
Non-interest bearing	$	5,205,410		$	4,836,420		$	3,779,609
NOW and interest bearing demand deposits	2,369,474			2,390,217			2,262,928
Wealth management deposits	1,761,710			1,643,653			1,528,963
Money market	4,157,083			4,041,300			3,791,762
Savings	1,766,552			1,723,367			1,563,752
Time certificates of deposit	3,956,842			4,004,677			4,011,755
Total deposits	$	19,217,071		$	18,639,634		$	16,938,769
Mix:
Non-interest bearing	27		%	26		%	22		%
NOW and interest bearing demand deposits	12			13			13
Wealth management deposits	9			9			9
Money market	22			22			23
Savings	9			9			9
Time certificates of deposit	21			21			24
Total deposits	100		%	100		%	100		%

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

3 Months Ended

Mar. 31, 2016

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)	March 31, 2016		December 31, 2015		March 31, 2015
Federal Home Loan Bank advances	$	799,482	$	853,431	$	406,839
Other borrowings:
Notes payable	63,683		67,429		—
Short-term borrowings	47,680		63,887		50,076
Other	18,811		18,965		18,538
Secured borrowings	122,952		115,504		118,102
Total other borrowings	253,126		265,785		186,716
Subordinated notes	138,888		138,861		138,782
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$	1,191,496	$	1,258,077	$	732,337

Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements

The following is a summary of these securities pledged as of March 31, 2016 disaggregated by investment category and maturity, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
U.S. Treasury	$	9,992
Corporate notes:
Financial issuers	4,937
Mortgage-backed securities	33,943
Held-to-maturity securities pledged
U.S. Government agencies	11,547
Total collateral pledged	$	60,419
Excess collateral	12,739
Securities sold under repurchase agreements	$	47,680

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Junior Subordinated Debentures (Tables)

3 Months Ended

Mar. 31, 2016

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 March 31, 2016. 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 3/31/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.87	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.43	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.23	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.58	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.08	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.26	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.62	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.63	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.38	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.25	%	06/2007	09/2037	06/2012
Total					$	253,566		2.83	%

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

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)	March 31, 2016			March 31, 2015
Net interest income:
Community Banking	$	141,698		$	122,681		$	19,017		16	%
Specialty Finance	21,180			21,046			134			1
Wealth Management	4,483			4,189			294			7
Total Operating Segments	167,361			147,916			19,445			13
Intersegment Eliminations	4,148			3,975			173			4
Consolidated net interest income	$	171,509		$	151,891		$	19,618		13	%
Non-interest income:
Community Banking	$	45,667		$	44,912		$	755		2	%
Specialty Finance	12,403			7,871			4,532			58
Wealth Management	18,752			18,728			24			—
Total Operating Segments	76,822			71,511			5,311			7
Intersegment Eliminations	(8,070		)	(6,970		)	(1,100		)	(16	)
Consolidated non-interest income	$	68,752		$	64,541		$	4,211		7	%
Net revenue:
Community Banking	$	187,365		$	167,593		$	19,772		12	%
Specialty Finance	33,583			28,917			4,666			16
Wealth Management	23,235			22,917			318			1
Total Operating Segments	244,183			219,427			24,756			11
Intersegment Eliminations	(3,922		)	(2,995		)	(927		)	(31	)
Consolidated net revenue	$	240,261		$	216,432		$	23,829		11	%
Segment profit:
Community Banking	$	34,757		$	24,965		$	9,792		39	%
Specialty Finance	11,472			10,952			520			5
Wealth Management	2,882			3,135			(253		)	(8	)
Consolidated net income	$	49,111		$	39,052		$	10,059		26	%
Segment assets:
Community Banking	$	19,575,709		$	17,039,668		$	2,536,041		15	%
Specialty Finance	3,322,807			2,783,958			538,849			19
Wealth Management	589,652			547,940			41,712			8
Consolidated total assets	$	23,488,168		$	20,371,566		$	3,116,602		15	%

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

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 March 31, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	March 31, 2016
May 3, 2012	May 3, 2016	215,000		Non-Hedge Designated	—
August 29, 2012	August 29, 2016	216,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	43,500		Cash Flow Hedging	—
February 22, 2013	August 22, 2016	56,500		Non-Hedge Designated	—
March 21, 2013	March 21, 2017	100,000		Non-Hedge Designated	15
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	2
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	34
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	30
		$	796,500		$	81

Schedule Of Fair Value Of Derivative Financial Instruments

The table below presents the fair value of the Company’s derivative financial instruments as of March 31, 2016, December 31, 2015 and March 31, 2015:

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(Dollars in thousands)	March 31, 2016		December 31, 2015		March 31, 2015		March 31, 2016		December 31, 2015		March 31, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	64	$	242	$	668	$	586	$	846	$	1,867
Interest rate derivatives designated as Fair Value Hedges	—		27		20		670		143		—
Total derivatives designated as hedging instruments under ASC 815	$	64	$	269	$	688	$	1,256	$	989	$	1,867
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	73,921	$	42,510	$	46,862	$	72,763	$	41,469	$	45,831
Interest rate lock commitments	12,104		7,401		15,296		3,574		171		—
Forward commitments to sell mortgage loans	—		745		—		3,857		2,275		7,410
Foreign exchange contracts	248		373		138		262		115		117
Total derivatives not designated as hedging instruments under ASC 815	$	86,273	$	51,029	$	62,296	$	80,456	$	44,030	$	53,358
Total Derivatives	$	86,337	$	51,298	$	62,984	$	81,712	$	45,019	$	55,225

Schedule Of Cash Flow Hedging Instruments

The table below provides details on each of these cash flow hedges as of March 31, 2016:

	March 31, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
September 2016	$	50,000	$	(370	)
October 2016	25,000		(216		)
Total Interest Rate Swaps	$	75,000	$	(586	)
Interest Rate Caps:
August 2016	43,500		—
August 2016	216,500		—
September 2017	50,000		34
September 2017	40,000		30
Total Interest Rate Caps	$	350,000	$	64
Total Cash Flow Hedges	$	425,000	$	(522	)

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
(Dollars in thousands)	March 31, 2016			March 31, 2015
Unrealized loss at beginning of period	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	723			414
Amount of loss recognized in other comprehensive income	(245		)	(975		)
Unrealized loss at end of period	$	(3,051	)	$	(4,623	)

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 March 31, 2016 and 2015:

(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
		March 31, 2016			March 31, 2015			March 31, 2016		March 31, 2015		March 31, 2016			March 31, 2015
Interest rate swaps	Trading (losses) gains, net	$	(554	)	$	(32	)	$	515	$	28	$	(39	)	$	(4	)

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
Derivative	Location in income statement	March 31, 2016			March 31, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	76		$	(450	)
Mortgage banking derivatives	Mortgage banking revenue	1,864			2,094
Covered call options	Fees from covered call options	1,712			4,360
Foreign exchange contracts	Trading (losses) gains, net	(63		)	(51		)

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)	March 31, 2016			December 31, 2015			March 31, 2015			March 31, 2016			December 31, 2015			March 31, 2015
Gross Amounts Recognized	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	73,985		$	42,779		$	47,550		$	74,019		$	42,458		$	47,698
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(156		)	(753		)	(1,563		)	(156		)	(753		)	(1,563		)
Collateral Posted (1)	—			—			—			(73,863		)	(41,705		)	(46,135		)
Net Credit Exposure	$	73,829		$	42,026		$	45,987		$	—		$	—		$	—

(1) As of March 31, 2016, December 31, 2015 and March 31, 2015, the Company posted collateral of$81.6 million, $45.5 million and $51.3 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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Fair Values of Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2016

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:

	March 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	117,089	$	—	$	117,089	$	—
U.S. Government agencies	94,172		—		94,172		—
Municipal	121,195		—		50,953		70,242
Corporate notes	80,213		—		80,213		—
Mortgage-backed	302,695		—		302,695		—
Equity securities	55,619		—		31,565		24,054
Trading account securities	2,116		—		2,116		—
Mortgage loans held-for-sale	314,554		—		314,554		—
Mortgage servicing rights	10,128		—		—		10,128
Nonqualified deferred compensation assets	8,926		—		8,926		—
Derivative assets	86,337		—		86,337		—
Total	$	1,193,044	$	—	$	1,088,620	$	104,424
Derivative liabilities	$	81,712	$	—	$	81,712	$	—

	December 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	306,729	$	—	$	306,729	$	—
U.S. Government agencies	70,236		—		70,236		—
Municipal	108,595		—		39,982		68,613
Corporate notes	81,545		—		81,545		—
Mortgage-backed	1,092,597		—		1,092,597		—
Equity securities	56,686		—		31,487		25,199
Trading account securities	448		—		448		—
Mortgage loans held-for-sale	388,038		—		388,038		—
Mortgage servicing rights	9,092		—		—		9,092
Nonqualified deferred compensation assets	8,517		—		8,517		—
Derivative assets	51,298		—		51,298		—
Total	$	2,173,781	$	—	$	2,070,877	$	102,904
Derivative liabilities	$	45,019	$	—	$	45,019	$	—

	March 31, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	271,474	$	—	$	271,474	$	—
U.S. Government agencies	661,793		—		661,793		—
Municipal	269,912		—		213,863		56,049
Corporate notes	133,814		—		133,814		—
Mortgage-backed	329,591		—		329,591		—
Equity securities	54,446		—		29,790		24,656
Trading account securities	7,811		—		7,811		—
Mortgage loans held-for-sale	446,355		—		446,355		—
Mortgage servicing rights	7,852		—		—		7,852
Nonqualified deferred compensation assets	8,718		—		8,718		—
Derivative assets	62,984		—		62,984		—
Total	$	2,254,750	$	—	$	2,166,193	$	88,557
Derivative liabilities	$	55,225	$	—	$	55,225	$	—

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 months ended March 31, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	9,092
Total net gains (losses) included in:
Net income (1)	—			—			1,036
Other comprehensive income	(13		)	(1,145		)	—
Purchases	3,271			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(1,629		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at March 31, 2016	$	70,242		$	24,054		$	10,128

				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)	—			—		(583		)
Other comprehensive income	203			945		—
Purchases	6,674			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(9,781		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at March 31, 2015	$	56,049		$	24,656	$	7,852

(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 March 31, 2016.

	March 31, 2016								Three Months Ended March 31, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	66,008	$	—	$	—	$	66,008	$	2,333
Other real estate owned, including covered other real estate owned (1)	58,978		—		—		58,978		1,087
Total	$	124,986	$	—	$	—	$	124,986	$	3,420

(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 March 31, 2016 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	$	70,242	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
Equity Securities	24,054		Discounted cash flows	Discount rate	2.81%-3.13%	2.98%	Decrease
Mortgage Servicing Rights	10,128		Discounted cash flows	Discount rate	4%-7%	6.20%	Decrease
				Constant prepayment rate (CPR)	1%-46%	11.39%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	66,008	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	58,978		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease

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 March 31, 2016				At December 31, 2015				At March 31, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	212,300	$	212,300	$	275,795	$	275,795	$	290,872	$	290,872
Interest bearing deposits with banks	817,013		817,013		607,782		607,782		697,799		697,799
Available-for-sale securities	770,983		770,983		1,716,388		1,716,388		1,721,030		1,721,030
Held-to-maturity securities	911,715		924,344		884,826		878,111		—		—
Trading account securities	2,116		2,116		448		448		7,811		7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222		113,222		101,581		101,581		92,948		92,948
Brokerage customer receivables	28,266		28,266		27,631		27,631		25,287		25,287
Mortgage loans held-for-sale, at fair value	314,554		314,554		388,038		388,038		446,355		446,355
Total loans	17,585,261		18,551,606		17,266,790		18,106,829		15,162,753		15,868,532
Mortgage servicing rights	10,128		10,128		9,092		9,092		7,852		7,852
Nonqualified deferred compensation assets	8,926		8,926		8,517		8,517		8,718		8,718
Derivative assets	86,337		86,337		51,298		51,298		62,984		62,984
FDIC indemnification asset	—		—		—		—		10,224		10,224
Accrued interest receivable and other	202,018		202,018		193,092		193,092		181,998		181,998
Total financial assets	$	21,062,839	$	22,041,813	$	21,531,278	$	22,364,602	$	18,716,631	$	19,422,410
Financial Liabilities
Non-maturity deposits	$	15,260,229	$	15,260,229	$	14,634,957	$	14,634,957	$	12,927,014	$	12,927,014
Deposits with stated maturities	3,956,842		3,956,157		4,004,677		3,998,180		4,011,755		4,017,565
Federal Home Loan Bank advances	799,482		807,265		853,431		863,437		406,839		422,305
Other borrowings	253,126		253,126		265,785		265,785		186,716		186,716
Subordinated notes	138,888		139,849		138,861		140,302		138,782		147,851
Junior subordinated debentures	253,566		254,290		268,566		268,046		249,493		250,196
Derivative liabilities	81,712		81,712		45,019		45,019		55,225		55,225
FDIC indemnification liability	10,029		10,029		6,100		6,100		—		—
Accrued interest payable	9,208		9,208		7,394		7,394		8,583		8,583
Total financial liabilities	$	20,763,082	$	20,771,865	$	20,224,790	$	20,229,220	$	17,984,407	$	18,015,455

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Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2016

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 three month periods ending March 31, 2016 and 2015.

	Three Months Ended
	March 31,		March 31,
	2016		2015
Expected dividend yield	0.9	%	0.9	%
Expected volatility	25.2	%	26.5	%
Risk-free rate	1.3	%	1.3	%
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 three months ended March 31, 2016 and March 31, 2015 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2016	1,551,734		$	41.32
Granted	554,107		40.87
Exercised	(19,110	)	32.86
Forfeited or canceled	(57,004	)	51.08
Outstanding at March 31, 2016	2,029,727		$	41.00	5.0	$	7,951
Exercisable at March 31, 2016	983,659		$	39.13	3.8	$	5,885

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	487,259		44.11
Exercised	(51,522	)	31.50
Forfeited or canceled	(175,579	)	54.40
Outstanding at March 31, 2015	1,894,948		$	42.35	4.6	$	11,649
Exercisable at March 31, 2015	1,158,991		$	41.00	3.3	$	9,291

(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 three months endedMarch 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	137,593		$	49.63	146,112		$	47.45
Granted	10,516		40.77		12,300		44.11
Vested and issued	(3,726	)	43.87		(4,925	)	36.74
Outstanding at March 31	144,383		$	49.14	153,487		$	47.53
Vested, but not issuable at March 31	88,493		$	51.43	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the three months ended March 31, 2016 and March 31, 2015 is presented below:

	Three months ended March 31, 2016				Three months ended March 31, 2015
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	276,533		$	43.01	295,679		$	38.18
Granted	116,576		40.87		102,828		44.11
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(7,417	)	39.32		(29,926	)	31.41
Outstanding at March 31	307,282		$	43.59	289,991		$	42.90
Vested, but deferred at March 31	6,612		$	37.85	—		$	—

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Shareholders' Equity and Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

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 January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,188			(149		)	6,038			21,077
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(804		)	439			—			(365		)
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,086			—			—			2,086
Net other comprehensive income (loss) during the period, net of tax	$	16,470		$	290		$	6,038		$	22,798
Balance at March 31, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Balance at January 1, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,945			(593		)	(9,045		)	6,307
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(318		)	252			—			(66		)
Net other comprehensive income (loss) during the period, net of tax	$	15,627		$	(341	)	$	(9,045	)	$	6,241
Balance at March 31, 2015	$	6,094		$	(2,858	)	$	(34,327	)	$	(31,091	)

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						Impacted Line on the Consolidated Statements of Income
	March 31,
	2016			2015
Accumulated unrealized losses on securities
Gains included in net income	$	1,325		$	524		Gains on available-for-sale securities, net
	1,325			524			Income before taxes
Tax effect	$	(521	)	$	(206	)	Income tax expense
Net of tax	$	804		$	318		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	255		$	—		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	468			414			Interest on junior subordinated debentures
	(723		)	(414		)	Income before taxes
Tax effect	$	284		$	162		Income tax expense
Net of tax	$	(439	)	$	(252	)	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
(In thousands, except per share data)		March 31, 2016		March 31, 2015
Net income		$	49,111	$	39,052
Less: Preferred stock dividends and discount accretion		3,628		1,581
Net income applicable to common shares—Basic	(A)	45,483		37,471
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,581
Net income applicable to common shares—Diluted	(B)	47,061		39,052
Weighted average common shares outstanding	(C)	48,448		47,239
Effect of dilutive potential common shares
Common stock equivalents		750		1,158
Convertible preferred stock, if dilutive		3,070		3,075
Total dilutive potential common shares		3,820		4,233
Weighted average common shares and effect of dilutive potential common shares	(D)	52,268		51,472
Net income per common share:
Basic	(A/C)	$	0.94	$	0.79
Diluted	(B/D)	$	0.90	$	0.76

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Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2016

Regulatory Capital Requirements [Abstract]

Schedule Of Adjusted Total Risk Based Capital Ratios

After excluding the following outstanding amounts of subordinated debt from Tier 2 capital, the recalculated total capital to risk-weighted assets ratios for each bank were as follows:

	March 31,			December 31,			September 30,			June 30,			March 31,
(Dollars in thousands)	2016			2015			2015			2015			2015
Subordinated debt excluded from Tier 2 capital
Beverly Bank	$	13,000		$	13,000		$	11,000		$	11,000		$	1,000
Schaumburg Bank	8,500			8,500			3,500			3,500			3,500
Barrington Bank	5,000			—			—			—			—
Old Plank Trail Bank	4,000			—			—			—			—
Total capital (to risk-weighted assets)
Beverly Bank	9.7		%	9.6		%	10.1		%	10.2		%	11.0		%
Schaumburg Bank	10.2			10.3			10.7			10.8			10.7
Barrington Bank	11.4			11.3			11.6			11.4			11.1
Old Plank Trail Bank	10.8			11.3			11.8			11.6			11.9

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Recent Accounting Developments (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Debt Issuance Cost	$ 7.8	$ 10.7

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Business Combinations (Summary of FDIC Indemnification Asset) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
FDIC Indemnification Asset [Roll Forward]
Balance at beginning of period	$ 0	$ 11,846
Balance at beginning of period, Liability	(6,100)
Additions from acquisitions	0	0
Additions from reimbursable expenses	82	1,575
Amortization	(101)	(1,260)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(3,547)	(3,993)
(Payments received from) provided to the FDIC	(363)	2,056
Balance at end of period	0	$ 10,224
Balance at end of period, Liability	$ (10,029)

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Business Combinations (Narrative) (Detail) $ in Thousands						3 Months Ended	75 Months Ended
	Mar. 31, 2016 USD ($) locations	Jul. 24, 2015 USD ($) locations	Jul. 17, 2015 USD ($) locations	Jul. 02, 2015 USD ($)	Jan. 16, 2015 USD ($) locations	Mar. 31, 2016 USD ($) locations	Mar. 31, 2016 USD ($) locations financial_institution	Jul. 01, 2015 USD ($) locations
Business Acquisition [Line Items]
Goodwill, Acquired During Period						$ 11,305
FDIC loss sharing percentage on purchased loans, OREO, and certain other assets						80.00%
Generations Bancorp Inc.
Business Acquisition [Line Items]
Effective date of acquisition	Mar. 31, 2016
Number of locations | locations	1					1	1
Assets acquired	$ 134,200					$ 134,200	$ 134,200
Loans acquired	67,500					67,500	67,500
Assumed deposits	100,100					$ 100,100	$ 100,100
Goodwill, Acquired During Period	$ 11,300
Community Financial Shares, Inc.
Business Acquisition [Line Items]
Effective date of acquisition		Jul. 24, 2015
Number of locations | locations		4
Assets acquired		$ 350,500
Loans acquired		159,500
Assumed deposits		290,000
Goodwill, Acquired During Period		$ 27,600
Suburban Illinois Bancorp
Business Acquisition [Line Items]
Effective date of acquisition			Jul. 17, 2015
Number of locations | locations			10
Assets acquired			$ 494,700
Loans acquired			257,800
Assumed deposits			416,700
Goodwill, Acquired During Period			$ 18,600
North Bank
Business Acquisition [Line Items]
Effective date of acquisition				Jul. 01, 2015
Number of locations | locations								2
Assets acquired								$ 117,900
Loans acquired								51,600
Assumed deposits								$ 101,000
Goodwill, Acquired During Period				$ 6,700
Delavan Bancshares
Business Acquisition [Line Items]
Effective date of acquisition					Jan. 16, 2015
Number of locations | locations					4
Assets acquired					$ 224,100
Loans acquired					128,000
Assumed deposits					170,200
Goodwill, Acquired During Period					16,800
Liabilities assumed					$ 186,400
FDIC Assisted
Business Acquisition [Line Items]
Number of FDIC assisted banks acquired | financial_institution							9

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Investment Securities (Marketable Securities) (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 761,906	$ 1,731,292	$ 1,711,113
Gross Unrealized Gains		13,647	14,766	26,395
Gross Unrealized Losses		(4,570)	(29,670)	(16,478)
Available-for-sale securities, Fair Value		770,983	1,716,388	1,721,030
Held-to-maturity securities, Amortized Cost		911,715	884,826	0
Held-to-maturity securities, Gross Unrealized Gains		14,241	871	0
Held-to-maturity securities, Gross Unrealized Losses		(1,612)	(7,586)	0
Held-to-maturity securities, Fair Value		924,344	878,111	0
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		117,105	312,282	273,173
Gross Unrealized Gains		22	0	148
Gross Unrealized Losses		(38)	(5,553)	(1,847)
Available-for-sale securities, Fair Value		117,089	306,729	271,474
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		93,990	70,313	665,177
Gross Unrealized Gains		194	198	5,348
Gross Unrealized Losses		(12)	(275)	(8,732)
Available-for-sale securities, Fair Value		94,172	70,236	661,793
Held-to-maturity securities, Amortized Cost		712,732	687,302	0
Held-to-maturity securities, Gross Unrealized Gains		11,569	4	0
Held-to-maturity securities, Gross Unrealized Losses		(1,455)	(7,144)	0
Held-to-maturity securities, Fair Value		722,846	680,162	0
Municipal
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		118,187	105,702	264,949
Gross Unrealized Gains		3,232	3,249	6,485
Gross Unrealized Losses		(224)	(356)	(1,522)
Available-for-sale securities, Fair Value		121,195	108,595	269,912
Held-to-maturity securities, Amortized Cost		198,983	197,524	0
Held-to-maturity securities, Gross Unrealized Gains		2,672	867	0
Held-to-maturity securities, Gross Unrealized Losses		(157)	(442)	0
Held-to-maturity securities, Fair Value		201,498	197,949	0
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		78,048	80,014	129,360
Gross Unrealized Gains		1,492	1,510	1,965
Gross Unrealized Losses		(1,830)	(1,481)	(1,321)
Available-for-sale securities, Fair Value		77,710	80,043	130,004
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		2,500	1,500	3,759
Gross Unrealized Gains		3	4	52
Gross Unrealized Losses		0	(2)	(1)
Available-for-sale securities, Fair Value		2,503	1,502	3,810
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	[1]	262,109	1,069,680	280,679
Gross Unrealized Gains	[1]	3,795	3,834	5,983
Gross Unrealized Losses	[1]	(1,900)	(21,004)	(2,529)
Available-for-sale securities, Fair Value	[1]	264,004	1,052,510	284,133
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	[1]	38,565	40,421	45,299
Gross Unrealized Gains	[1]	324	172	435
Gross Unrealized Losses	[1]	(198)	(506)	(276)
Available-for-sale securities, Fair Value	[1]	38,691	40,087	45,458
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		51,402	51,380	48,717
Gross Unrealized Gains		4,585	5,799	5,979
Gross Unrealized Losses		(368)	(493)	(250)
Available-for-sale securities, Fair Value		55,619	56,686	54,446
Mortgage-backed securities, subprime
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Fair Value		$ 0	$ 0	$ 0

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

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Investment Securities (Investment Securities, Continuous Unrealized Loss Position, Fair Value) (Detail) $ in Thousands	Mar. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	$ 141,264
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(425)
Continuous unrealized losses existing for greater than 12 months, Fair value	181,950
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(4,145)
Total, Fair value	323,214
Total, Unrealized losses	(4,570)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	224,324
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,580)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	4,917
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(32)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	229,241
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(1,612)
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	75,049
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(38)
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	75,049
Total, Unrealized losses	(38)
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	13,982
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(10)
Continuous unrealized losses existing for greater than 12 months, Fair value	1,833
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(2)
Total, Fair value	15,815
Total, Unrealized losses	(12)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	208,405
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,455)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	208,405
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(1,455)
Municipal
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	18,399
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(40)
Continuous unrealized losses existing for greater than 12 months, Fair value	6,977
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(184)
Total, Fair value	25,376
Total, Unrealized losses	(224)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	15,919
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(125)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	4,917
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(32)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	20,836
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(157)
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	22,952
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(237)
Continuous unrealized losses existing for greater than 12 months, Fair value	34,367
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(1,593)
Total, Fair value	57,319
Total, Unrealized losses	(1,830)
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	0
Continuous unrealized losses existing for less than 12 months, Unrealized losses	0
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	0
Total, Unrealized losses	0
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	2,038
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(3)
Continuous unrealized losses existing for greater than 12 months, Fair value	122,371
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(1,897)
Total, Fair value	124,409
Total, Unrealized losses	(1,900)
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	4,880
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(42)
Continuous unrealized losses existing for greater than 12 months, Fair value	7,803
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(156)
Total, Fair value	12,683
Total, Unrealized losses	(198)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	3,964
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(55)
Continuous unrealized losses existing for greater than 12 months, Fair value	8,599
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(313)
Total, Fair value	12,563
Total, Unrealized losses	$ (368)

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Investment Securities (Schedule of Realized Gain (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Realized gains	$ 2,550	$ 553
Realized losses	(1,225)	(29)
Net realized (losses) gains	1,325	524
Other than temporary impairment charges	0	0
Gains on available-for-sale securities, net	1,325	524
Proceeds from sales of available-for-sale securities	$ 3,201	$ 635,532

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Investment Securities (Investments Classified by Contractual Maturity Date) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 208,518	$ 160,856	$ 151,585
Due in one to five years, Amortized Cost	158,668	166,550	249,861
Due in five to ten years, Amortized Cost	28,970	228,652	837,926
Due after ten years, Amortized Cost	13,674	13,753	97,046
Amortized Cost	761,906	1,731,292	1,711,113
Due in one year or less, Fair Value	208,641	160,756	151,854
Due in one to five years, Fair Value	158,804	166,468	250,483
Due in five to ten years, Fair Value	31,363	225,699	836,598
Due after ten years, Fair Value	13,861	14,182	98,058
Available-for-sale securities, at fair value	770,983	1,716,388	1,721,030
Held-to-maturity securities, Due in one year or less, Amortized Cost	0	0	0
Held-to-maturity securities, Due in one to five years, Amortized Cost	24,319	19,208	0
Held-to-maturity securities, Due in five to ten years, Amortized Cost	65,879	96,454	0
Held-to-maturity securities, Due after ten years, Amortized Cost	821,517	769,164	0
Held-to-maturity securities, Due in one year or less, Fair Value	0	0	0
Held-to-maturity securities, Due in one to five years, Fair Value	24,448	19,156	0
Held-to-maturity securities, Due in five to ten years, Fair Value	66,432	96,091	0
Held-to-maturity securities, Due after ten years, Fair Value	833,464	762,864	0
Held-to-maturity securities, Amortized Cost	911,715	884,826	0
Held-to-maturity securities, Fair Value	924,344	878,111	0
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	300,674	1,110,101	325,978
Available-for-sale securities, at fair value	302,695	1,092,597	329,591
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	51,402	51,380	48,717
Available-for-sale securities, at fair value	$ 55,619	$ 56,686	$ 54,446

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Investment Securities (Narrative) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) securities	Dec. 31, 2015 USD ($)	Mar. 31, 2015 USD ($)
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Available-for-sale securities, transferred to held-to-maturity securities	$ 0.0	$ 862.7
Available-for-sale securities, transferred to held-to-maturity, unrealized gain (loss)		14.4
Pledged Securities, carrying value	$ 1,200.0	$ 1,200.0	$ 1,100.0
Number of securities by a single non-goverment sponsored issuer exceeding 10% of shareholders' equity | securities	0

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Loans (Summary of Loan Portfolio) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 17,446,413	$ 17,118,117	$ 14,953,059
Covered loans	138,848	148,673	209,694
Total loans	$ 17,585,261	$ 17,266,790	$ 15,162,753
Total loans, net of unearned income, excluding covered loans, percentage	99.00%	99.00%	99.00%
Covered loans, percentage	1.00%	1.00%	1.00%
Total loans, percentage	100.00%	100.00%	100.00%
Commercial
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 4,890,246	$ 4,713,909	$ 4,211,932
Total loans, net of unearned income, excluding covered loans, percentage	28.00%	27.00%	28.00%
Commercial real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 5,737,959	$ 5,529,289	$ 4,710,486
Total loans, net of unearned income, excluding covered loans, percentage	32.00%	32.00%	31.00%
Home equity
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 774,342	$ 784,675	$ 709,283
Total loans, net of unearned income, excluding covered loans, percentage	4.00%	5.00%	5.00%
Residential real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 626,043	$ 607,451	$ 495,925
Total loans, net of unearned income, excluding covered loans, percentage	4.00%	3.00%	3.00%
Consumer and other
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 119,902	$ 146,376	$ 130,156
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	$ 2,320,987	$ 2,374,921	$ 2,319,623
Total loans, net of unearned income, excluding covered loans, percentage	13.00%	14.00%	15.00%
Life insurance | Premium finance receivables
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 2,976,934	$ 2,961,496	$ 2,375,654
Total loans, net of unearned income, excluding covered loans, percentage	17.00%	17.00%	16.00%

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Loans (Schedule of Unpaid Principal Balance And Carrying Value Of Acquired Loans) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Bank acquisitions
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid Principal Balance	$ 331,354	$ 326,470
Carrying Value	276,012	271,260
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	299,915	372,738
Carrying Value	$ 296,138	$ 368,292

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Loans (Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period) (Details) - Generations Bancorp Inc. $ in Thousands	Mar. 31, 2016 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required payments including interest	$ 19,350
Less: Nonaccretable difference	3,640
Cash flows expected to be collected	15,710	[1]
Less: Accretable yield	1,141
Fair value of PCI loans acquired	$ 14,569

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

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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
		Mar. 31, 2016	Mar. 31, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance		$ 63,902	$ 79,102
Acquisitions		1,141	898
Accretable yield amortized to interest income		(5,457)	(6,105)
Accretable yield amortized to indemnification asset	[1]	(2,171)	(3,576)
Reclassification from non-accretable difference	[2]	4,193	1,103
Decreases in interest cash flows due to payments and changes in interest rates		(2,390)	(1,224)
Accretable yield, ending balance	[3]	59,218	$ 70,198
Accretable yield, to be amortized to indemnification asset		$ 4,800

[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 March 31, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset for the bank acquisitions is $4.8 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

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Loans (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
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	$ (8,900)	$ (3,700)	$ (9,200)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion	5,457	6,105
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	$ 56,900	$ 48,100	$ 56,700

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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		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		$ 81,856	$ 78,950	$ 80,698
90+ days and still accruing		48,064	41,872	43,585
Current		17,308,727	16,993,266	14,917,238
Loans, net of unearned income, excluding covered loans		17,446,413	17,118,117	14,953,059
Nonaccrual		76,532	73,072	73,619
90+ days and still accruing		40,069	34,537	27,151
Current		17,190,038	16,864,283	14,737,743
Covered loans, Nonaccrual		5,324	5,878	7,079
Covered loans, 90 plus days and still accruing		7,995	7,335	16,434
Covered loans, Current		118,689	128,983	179,495
Covered loans		138,848	148,673	209,694
Total loans		17,585,261	17,266,790	15,162,753
60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		19,603	42,806	26,769
60-89 days past due		19,254	42,103	26,211
Covered loans, 60-89 days past due		349	703	558
30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		127,011	109,896	94,463
30-59 days past due		120,520	104,122	88,335
Covered loans, 30-59 days past due		6,491	5,774	6,128
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		12,373	12,712	5,586
90+ days and still accruing		2,231	1,433	612
Current		4,827,896	4,666,927	4,177,491
Loans, net of unearned income, excluding covered loans		4,890,246	4,713,909	4,211,932
Commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,345	11,361	5,112
Commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		44,401	21,476	23,131
Commercial | Commercial, industrial and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		12,370	12,704	5,586
90+ days and still accruing		338	6	0
Current		3,363,011	3,226,139	2,779,781
Loans, net of unearned income, excluding covered loans		3,404,555	3,258,528	2,807,752
Commercial | Commercial, industrial and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,228	6,749	5,047
Commercial | Commercial, industrial and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		25,608	12,930	17,338
Commercial | Franchise
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	0	0
Current		273,158	245,228	225,305
Loans, net of unearned income, excluding covered loans		274,558	245,228	225,762
Commercial | Franchise | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial | Franchise | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,400	0	457
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		192,244	222,806	186,372
Loans, net of unearned income, excluding covered loans		193,735	222,806	186,372
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		1,491	0	0
Commercial | Asset-based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		3	8	0
90+ days and still accruing		0	0	0
Current		737,184	736,968	805,866
Loans, net of unearned income, excluding covered loans		747,901	742,684	810,685
Commercial | Asset-based lending | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		117	3,864	0
Commercial | Asset-based lending | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		10,597	1,844	4,819
Commercial | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		0	535	0
Current		244,241	220,599	171,432
Loans, net of unearned income, excluding covered loans		249,418	226,074	172,014
Commercial | Leases | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	748	65
Commercial | Leases | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,177	4,192	517
Commercial | PCI - commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	[1]	0	0	0
90+ days and still accruing	[1]	1,893	892	612
Current	[1]	18,058	15,187	8,735
Loans, net of unearned income, excluding covered loans	[1],[2]	20,079	18,589	9,347
Commercial | PCI - commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	0	0	0
Commercial | PCI - commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	128	2,510	0
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		26,996	26,645	29,982
90+ days and still accruing		25,998	22,111	18,120
Current		5,633,284	5,424,863	4,628,193
Loans, net of unearned income, excluding covered loans		5,737,959	5,529,289	4,710,486
Commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,792	16,427	6,072
Commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		45,889	39,243	28,119
Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		273	306	0
90+ days and still accruing		0	0	0
Current		389,026	355,338	255,835
Loans, net of unearned income, excluding covered loans		391,322	358,660	256,827
Commercial real estate | Construction | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	1,371	0
Commercial real estate | Construction | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,023	1,645	992
Commercial real estate | Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		1,746	1,751	2,646
90+ days and still accruing		0	0	0
Current		93,834	76,546	84,454
Loans, net of unearned income, excluding covered loans		95,580	78,417	89,042
Commercial real estate | Land | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	0	0
Commercial real estate | Land | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	120	1,942
Commercial real estate | Office
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		7,729	4,619	8,243
90+ days and still accruing		1,260	0	0
Current		865,954	853,801	731,568
Loans, net of unearned income, excluding covered loans		888,494	863,001	743,126
Commercial real estate | Office | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		980	764	171
Commercial real estate | Office | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		12,571	3,817	3,144
Commercial real estate | Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		10,960	9,564	3,496
90+ days and still accruing		0	0	0
Current		728,061	715,207	599,050
Loans, net of unearned income, excluding covered loans		742,956	727,648	604,326
Commercial real estate | Industrial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0	1,868	61
Commercial real estate | Industrial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,935	1,009	1,719
Commercial real estate | Retail
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		1,633	1,760	4,975
90+ days and still accruing		0	0	0
Current		890,780	863,887	734,990
Loans, net of unearned income, excluding covered loans		897,467	868,399	742,527
Commercial real estate | Retail | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,397	442	0
Commercial real estate | Retail | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,657	2,310	2,562
Commercial real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		287	1,954	1,750
90+ days and still accruing		0	0	0
Current		760,084	733,230	649,589
Loans, net of unearned income, excluding covered loans		763,073	742,349	655,403
Commercial real estate | Multi-family | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		655	597	393
Commercial real estate | Multi-family | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,047	6,568	3,671
Commercial real estate | Mixed use and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		4,368	6,691	8,872
90+ days and still accruing		0	0	0
Current		1,778,850	1,712,187	1,532,036
Loans, net of unearned income, excluding covered loans		1,795,717	1,732,816	1,552,563
Commercial real estate | Mixed use and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		187	6,723	808
Commercial real estate | Mixed use and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		12,312	7,215	10,847
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]	24,738	22,111	18,120
Current	[1]	126,695	114,667	40,671
Loans, net of unearned income, excluding covered loans	[1],[2]	163,350	157,999	66,672
Commercial real estate | PCI - commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	1,573	4,662	4,639
Commercial real estate | PCI - commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	[1]	10,344	16,559	3,242
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		9,365	6,848	7,665
90+ days and still accruing		0	0	0
Current		759,712	770,421	698,100
Loans, net of unearned income, excluding covered loans		774,342	784,675	709,283
Home equity | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		791	1,889	693
Home equity | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		4,474	5,517	2,825
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		11,964	12,043	14,248
90+ days and still accruing		406	488	266
Current		603,372	588,851	471,839
Loans, net of unearned income, excluding covered loans		626,043	607,451	495,925
Residential real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		193	2,166	753
Residential real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		10,108	3,903	8,819
Premium finance receivables | Commercial insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		15,350	14,561	15,902
90+ days and still accruing		9,548	10,294	8,062
Current		2,275,420	2,321,786	2,271,791
Loans, net of unearned income, excluding covered loans		2,320,987	2,374,921	2,319,623
Premium finance receivables | Commercial insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		5,583	6,624	4,476
Premium finance receivables | Commercial insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		15,086	21,656	19,392
Premium finance receivables | Life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		0	0	0
90+ days and still accruing		1,641	0	0
Current		2,675,525	2,578,632	1,972,197
Loans, net of unearned income, excluding covered loans		2,680,796	2,593,204	1,986,606
Premium finance receivables | Life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		3,432	3,432	8,994
Premium finance receivables | Life insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		198	11,140	5,415
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]	296,138	368,292	389,048
Loans, net of unearned income, excluding covered loans	[1],[2]	296,138	368,292	389,048
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		484	263	236
90+ days and still accruing		245	211	91
Current		118,691	144,511	129,084
Loans, net of unearned income, excluding covered loans		119,902	146,376	130,156
Consumer and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		118	204	111
Consumer and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		$ 364	$ 1,187	$ 634

[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.

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Performance by Loan Class) (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		$ 17,446,413	$ 17,118,117	$ 14,953,059
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		17,356,914	17,034,060	14,871,287
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		89,499	84,057	81,772
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,890,246	4,713,909	4,211,932
Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,877,535	4,700,656	4,206,346
Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		12,711	13,253	5,586
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		5,737,959	5,529,289	4,710,486
Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		5,709,703	5,502,644	4,680,504
Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		28,256	26,645	29,982
Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		774,342	784,675	709,283
Home equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		764,977	777,827	701,618
Home equity | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		9,365	6,848	7,665
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		626,043	607,451	495,925
Residential real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		614,079	595,408	481,677
Residential real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		11,964	12,043	14,248
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		119,902	146,376	130,156
Consumer and other | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		119,238	145,963	129,829
Consumer and other | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		664	413	327
Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		3,404,555	3,258,528	2,807,752
Commercial, industrial and other | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		3,391,847	3,245,818	2,802,166
Commercial, industrial and other | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		12,708	12,710	5,586
Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		274,558	245,228	225,762
Franchise | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		274,558	245,228	225,762
Franchise | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	0	0
Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		193,735	222,806	186,372
Mortgage warehouse lines of credit | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		193,735	222,806	186,372
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
Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		747,901	742,684	810,685
Asset-based lending | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		747,898	742,676	810,685
Asset-based lending | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		3	8	0
Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		249,418	226,074	172,014
Leases | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		249,418	225,539	172,014
Leases | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		0	535	0
PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	20,079	18,589	9,347
PCI - commercial | Commercial | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	20,079	18,589	9,347
PCI - commercial | Commercial | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	0	0	0
Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		391,322	358,660	256,827
Construction | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		391,049	358,354	256,827
Construction | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		273	306	0
Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		95,580	78,417	89,042
Land | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		93,834	76,666	86,396
Land | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,746	1,751	2,646
Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		888,494	863,001	743,126
Office | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		879,505	858,382	734,883
Office | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		8,989	4,619	8,243
Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		742,956	727,648	604,326
Industrial | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		731,996	718,084	600,830
Industrial | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		10,960	9,564	3,496
Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		897,467	868,399	742,527
Retail | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		895,834	866,639	737,552
Retail | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,633	1,760	4,975
Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		763,073	742,349	655,403
Multi-family | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		762,786	740,395	653,653
Multi-family | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		287	1,954	1,750
Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,795,717	1,732,816	1,552,563
Mixed use and other | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,791,349	1,726,125	1,543,691
Mixed use and other | Commercial real estate | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		4,368	6,691	8,872
PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	163,350	157,999	66,672
PCI - commercial real estate | Commercial real estate | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	163,350	157,999	66,672
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
Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,320,987	2,374,921	2,319,623
Commercial insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,296,089	2,350,066	2,295,659
Commercial insurance loans | Premium finance receivables | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		24,898	24,855	23,964
Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,680,796	2,593,204	1,986,606
Life insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		2,679,155	2,593,204	1,986,606
Life insurance loans | Premium finance receivables | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans		1,641	0	0
PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[1],[2]	296,138	368,292	389,048
PCI - life insurance loans | Premium finance receivables | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	[2]	296,138	368,292	389,048
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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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
	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	$ 105,400	$ 91,705
Other adjustments	(78)	(248)
Reclassification from allowance for unfunded lending-related commitments	(81)	(113)
Charge-offs	(5,474)	(4,271)
Recoveries	1,981	1,188
Provision for credit losses	8,423	6,185
Allowance for loan losses at period end	110,171	94,446
Allowance for unfunded lending-related commitments at period end	1,030	888
Allowance for credit losses at period end	111,201	95,334
Allowance for credit losses at period end, Individually evaluated for impairment	7,812	6,252
Allowance for credit losses at period end, Collectively evaluated for impairment	102,637	88,875
Loans at period end, Individually evaluated for impairment	96,997	113,651
Loans at period end, Collectively evaluated for impairment	16,866,468	14,371,978
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	752	207
Loans at period end, Loans acquired with deteriorated credit quality	482,948	467,430
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	36,135	31,699
Other adjustments	(9)	(17)
Reclassification from allowance for unfunded lending-related commitments	0	0
Charge-offs	(671)	(677)
Recoveries	629	370
Provision for credit losses	2,351	2,351
Allowance for loan losses at period end	38,435	33,726
Allowance for unfunded lending-related commitments at period end	0	0
Allowance for credit losses at period end	38,435	33,726
Allowance for credit losses at period end, Individually evaluated for impairment	2,319	1,814
Allowance for credit losses at period end, Collectively evaluated for impairment	35,448	31,912
Loans at period end, Individually evaluated for impairment	17,969	12,361
Loans at period end, Collectively evaluated for impairment	4,852,198	4,190,224
Commercial | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	668	0
Loans at period end, Loans acquired with deteriorated credit quality	20,079	9,347
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	43,758	35,533
Other adjustments	(76)	(180)
Reclassification from allowance for unfunded lending-related commitments	(81)	(113)
Charge-offs	(671)	(1,005)
Recoveries	369	312
Provision for credit losses	1,964	2,455
Allowance for loan losses at period end	45,263	37,002
Allowance for unfunded lending-related commitments at period end	1,030	888
Allowance for credit losses at period end	46,293	37,890
Allowance for credit losses at period end, Individually evaluated for impairment	3,028	3,256
Allowance for credit losses at period end, Collectively evaluated for impairment	43,261	34,521
Loans at period end, Individually evaluated for impairment	52,977	75,886
Loans at period end, Collectively evaluated for impairment	5,521,632	4,567,928
Commercial real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	4	113
Loans at period end, Loans acquired with deteriorated credit quality	163,350	66,672
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	12,012	12,500
Other adjustments	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0
Charge-offs	(1,052)	(584)
Recoveries	48	48
Provision for credit losses	1,907	700
Allowance for loan losses at period end	12,915	12,664
Allowance for unfunded lending-related commitments at period end	0	0
Allowance for credit losses at period end	12,915	12,664
Allowance for credit losses at period end, Individually evaluated for impairment	1,695	948
Allowance for credit losses at period end, Collectively evaluated for impairment	11,220	11,716
Loans at period end, Individually evaluated for impairment	9,365	7,879
Loans at period end, Collectively evaluated for impairment	764,977	701,404
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
Loans at period end, Loans acquired with deteriorated credit quality	0	0
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	4,734	4,218
Other adjustments	(30)	(3)
Reclassification from allowance for unfunded lending-related commitments	0	0
Charge-offs	(493)	(631)
Recoveries	112	76
Provision for credit losses	841	436
Allowance for loan losses at period end	5,164	4,096
Allowance for unfunded lending-related commitments at period end	0	0
Allowance for credit losses at period end	5,164	4,096
Allowance for credit losses at period end, Individually evaluated for impairment	700	208
Allowance for credit losses at period end, Collectively evaluated for impairment	4,384	3,794
Loans at period end, Individually evaluated for impairment	16,159	17,144
Loans at period end, Collectively evaluated for impairment	606,503	476,418
Residential real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	80	94
Loans at period end, Loans acquired with deteriorated credit quality	3,381	2,363
Premium finance receivables
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	7,233	6,513
Other adjustments	37	(48)
Reclassification from allowance for unfunded lending-related commitments	0	0
Charge-offs	(2,480)	(1,263)
Recoveries	787	329
Provision for credit losses	1,628	461
Allowance for loan losses at period end	7,205	5,992
Allowance for unfunded lending-related commitments at period end	0	0
Allowance for credit losses at period end	7,205	5,992
Allowance for credit losses at period end, Individually evaluated for impairment	0	0
Allowance for credit losses at period end, Collectively evaluated for impairment	7,205	5,992
Loans at period end, Individually evaluated for impairment	0	0
Loans at period end, Collectively evaluated for impairment	5,001,783	4,306,229
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
Loans at period end, Loans acquired with deteriorated credit quality	296,138	389,048
Consumer and other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	1,528	1,242
Other adjustments	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0
Charge-offs	(107)	(111)
Recoveries	36	53
Provision for credit losses	(268)	(218)
Allowance for loan losses at period end	1,189	966
Allowance for unfunded lending-related commitments at period end	0	0
Allowance for credit losses at period end	1,189	966
Allowance for credit losses at period end, Individually evaluated for impairment	70	26
Allowance for credit losses at period end, Collectively evaluated for impairment	1,119	940
Loans at period end, Individually evaluated for impairment	527	381
Loans at period end, Collectively evaluated for impairment	119,375	129,775
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
Loans at period end, Loans acquired with deteriorated credit quality	$ 0	$ 0

XML

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
	Mar. 31, 2016	Mar. 31, 2015
Allowance for Covered Loan Losses [Roll Forward]
Balance at beginning of period	$ 3,026	$ 2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(1,946)	(529)
Benefit attributable to FDIC loss share agreements	1,557	423
Net provision for covered loan losses	(389)	(106)
Decrease in FDIC indemnification asset	(1,557)	(423)
Loans charged-off	(230)	(237)
Recoveries of loans charged-off	1,657	513
Net recoveries (charge-offs)	1,427	276
Balance at end of period	$ 2,507	$ 1,878

XML

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		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance for loan loss required	[1]	$ 50,710	$ 49,961	$ 48,610
Impaired loans with no allowance for loan loss required		45,400	51,294	63,794
Total impaired loans	[2]	96,110	101,255	112,404
Allowance for loan losses related to impaired loans		7,775	6,380	6,199
Financing Receivable
Financing Receivable, Impaired [Line Items]
Allowance for loan losses related to impaired loans		3,100
TDRs		$ 52,555	$ 51,853	$ 67,218

[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.

XML

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		3 Months Ended		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	$ 50,710	$ 48,610	$ 49,961
Impaired Financing Receivable, Related Allowance		7,775	6,199	6,380
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		45,400	63,794	51,294
Impaired Financing Receivable, Recorded Investment	[2]	96,110	112,404	101,255
Impaired Financing Receivable, Unpaid Principal Balance		114,793	136,169	124,249
Impaired Financing Receivable, Average Recorded Investment		96,369	113,693	107,170
Impaired Financing Receivable, Interest Income Recognized		1,463	1,588	6,198
Commercial | Commercial, industrial and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		9,711	7,230	9,754
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		12,905	7,830	12,498
Impaired Financing Receivable, Related Allowance		2,309	1,795	2,012
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		9,527	7,465	10,123
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		207	92	792
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		7,802	4,630	8,562
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		8,591	7,595	9,915
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		8,090	4,647	9,885
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		116	125	521
Commercial | Asset-based lending
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		3	0	8
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		1,567	0	1,570
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		5	0	5
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		22	0	88
Commercial real estate | 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		2,296	2,645	2,328
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,296	2,645	2,329
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		2,296	2,645	2,316
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		28	30	113
Commercial real estate | Land
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		5,577	4,475	4,929
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		9,358	8,090	8,711
Impaired Financing Receivable, Related Allowance		49	29	41
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		5,583	4,734	5,127
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		142	127	547
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		2,112	5,134	888
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,852	5,868	2,373
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		2,116	5,137	929
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		28	62	90
Commercial real estate | Office
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		3,688	8,354	5,050
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,688	11,053	6,051
Impaired Financing Receivable, Related Allowance		363	598	632
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		3,701	8,399	5,394
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		57	131	314
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		7,172	6,890	3,500
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		8,548	6,965	4,484
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		7,323	6,971	3,613
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		110	77	237
Commercial real estate | Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		8,325	1,402	8,413
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		9,065	1,487	9,105
Impaired Financing Receivable, Related Allowance		1,872	559	1,943
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		8,382	1,406	10,590
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		115	20	565
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		3,692	2,772	2,217
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		3,910	3,134	2,426
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		3,686	2,837	2,286
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		67	55	188
Commercial real estate | Retail
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		7,757	10,259	8,527
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		7,775	12,286	9,230
Impaired Financing Receivable, Related Allowance		296	371	343
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		7,785	10,294	8,596
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		83	128	386
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		1,800	5,053	2,757
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,499	9,130	2,925
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,806	5,315	2,897
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		25	105	129
Commercial real estate | Multi-family
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		1,477	2,266	370
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		1,477	2,363	370
Impaired Financing Receivable, Related Allowance		128	241	202
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		1,050	2,273	372
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		11	26	25
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		92	777	2,344
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		175	1,199	2,807
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		148	778	2,390
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		2	13	117
Commercial real estate | Mixed use and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		4,753	7,891	7,590
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,900	10,041	7,708
Impaired Financing Receivable, Related Allowance		293	1,449	570
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		4,761	7,907	7,681
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		58	116	328
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		3,802	17,479	10,510
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		4,377	17,723	14,060
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		3,886	17,688	11,939
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		58	185	624
Home equity
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		3,508	2,807	423
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		3,559	2,962	435
Impaired Financing Receivable, Related Allowance		1,695	948	333
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		3,508	2,809	351
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		25	29	16
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		5,857	5,072	6,424
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		6,974	6,771	7,987
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		5,962	5,126	5,738
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		92	70	288
Residential real estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		5,726	3,728	4,710
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		5,957	3,934	4,799
Impaired Financing Receivable, Related Allowance		700	183	294
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		5,743	3,724	4,618
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		61	45	182
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		10,433	13,159	11,559
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		12,692	14,644	13,979
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		10,481	13,190	11,903
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		148	145	624
Consumer and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		188	198	195
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		215	200	220
Impaired Financing Receivable, Related Allowance		70	26	10
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		190	203	216
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized		3	4	12
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		339	183	197
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		413	249	267
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		340	145	201
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized		$ 5	$ 3	$ 12

[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.

XML

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				12 Months Ended
		Mar. 31, 2016 USD ($) contracts		Mar. 31, 2015 USD ($) contracts		Mar. 31, 2016 USD ($) Loan	[3],[4]	Mar. 31, 2015 USD ($) Loan	[3],[4]
Financing Receivable, Modifications [Line Items]
TDRs, number		11	[1],[2]	3	[1],[2]	20		18
TDRs, Additions		$ 8,723	[1],[2]	$ 294	[1],[2]	$ 10,463		$ 7,017
Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	10		3
TDRs, Additions	[1]	$ 8,563		$ 294
Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	4		2
TDRs, Additions	[1]	$ 7,356		$ 80
Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1
TDRs, Additions	[1]	$ 0		$ 50
Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Residential real estate and other
Financing Receivable, Modifications [Line Items]
TDRs, number		1	[1],[2]	3	[1],[2]	7		9
TDRs, Additions		$ 160	[1],[2]	$ 294	[1],[2]	$ 1,530		$ 2,131
Residential real estate and other | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		3
TDRs, Additions	[1]	$ 0		$ 294
Residential real estate and other | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		2
TDRs, Additions	[1]	$ 160		$ 80
Residential real estate and other | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		1
TDRs, Additions	[1]	$ 0		$ 50
Residential real estate and other | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Commercial, industrial and other | Commercial
Financing Receivable, Modifications [Line Items]
TDRs, number		1	[1],[2]	0	[1],[2]	1		1
TDRs, Additions		$ 42	[1],[2]	$ 0	[1],[2]	$ 42		$ 1,461
Commercial, industrial and other | Commercial | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		0
TDRs, Additions	[1]	$ 42		$ 0
Commercial, industrial and other | Commercial | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Commercial, industrial and other | Commercial | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Commercial, industrial and other | Commercial | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Office | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number		1	[1],[2]	0	[1],[2]	1		2
TDRs, Additions		$ 450	[1],[2]	$ 0	[1],[2]	$ 450		$ 1,510
Office | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	1		0
TDRs, Additions	[1]	$ 450		$ 0
Office | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Office | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Office | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Industrial | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number		6	[1],[2]	0	[1],[2]	7		1
TDRs, Additions		$ 7,921	[1],[2]	$ 0	[1],[2]	$ 8,090		$ 685
Industrial | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	6		0
TDRs, Additions	[1]	$ 7,921		$ 0
Industrial | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	3		0
TDRs, Additions	[1]	$ 7,196		$ 0
Industrial | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Industrial | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Mixed use and other | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number		2	[1],[2]	0	[1],[2]	4		4
TDRs, Additions		$ 150	[1],[2]	$ 0	[1],[2]	$ 351		$ 1,049
Mixed use and other | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	2		0
TDRs, Additions	[1]	$ 150		$ 0
Mixed use and other | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Mixed use and other | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 0		$ 0
Mixed use and other | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	[1]	0		0
TDRs, Additions	[1]	$ 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

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				12 Months Ended
		Mar. 31, 2016 USD ($) contracts Loan		Mar. 31, 2015 USD ($) contracts Loan		Mar. 31, 2016 USD ($) Loan		Mar. 31, 2015 USD ($) Loan
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		11	[1],[2]	3	[1],[2]	20	[3],[4]	18	[3],[4]
Total, Balance		$ 8,723	[1],[2]	$ 294	[1],[2]	$ 10,463	[3],[4]	$ 7,017	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	7		7
Subsequent Default, Balance	[3],[5]	$ 1,392		$ 2,048
Commercial | Commercial, industrial and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		1	[1],[2]	0	[1],[2]	1	[3],[4]	1	[3],[4]
Total, Balance		$ 42	[1],[2]	$ 0	[1],[2]	$ 42	[3],[4]	$ 1,461	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	0		0
Subsequent Default, Balance	[3],[5]	$ 0		$ 0
Commercial real estate | Office
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		1	[1],[2]	0	[1],[2]	1	[3],[4]	2	[3],[4]
Total, Balance		$ 450	[1],[2]	$ 0	[1],[2]	$ 450	[3],[4]	$ 1,510	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	1		1
Subsequent Default, Balance	[3],[5]	$ 450		$ 790
Commercial real estate | Industrial
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		6	[1],[2]	0	[1],[2]	7	[3],[4]	1	[3],[4]
Total, Balance		$ 7,921	[1],[2]	$ 0	[1],[2]	$ 8,090	[3],[4]	$ 685	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	3		0
Subsequent Default, Balance	[3],[5]	$ 725		$ 0
Commercial real estate | Multi-family
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | Loan	[3],[4]					0		1
Total, Balance	[3],[4]					$ 0		$ 181
Subsequent Default, Count | Loan	[3],[5]	0		1
Subsequent Default, Balance	[3],[5]	$ 0		$ 181
Commercial real estate | Mixed use and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		2	[1],[2]	0	[1],[2]	4	[3],[4]	4	[3],[4]
Total, Balance		$ 150	[1],[2]	$ 0	[1],[2]	$ 351	[3],[4]	$ 1,049	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	3		3
Subsequent Default, Balance	[3],[5]	$ 217		$ 816
Residential real estate and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count		1	[1],[2]	3	[1],[2]	7	[3],[4]	9	[3],[4]
Total, Balance		$ 160	[1],[2]	$ 294	[1],[2]	$ 1,530	[3],[4]	$ 2,131	[3],[4]
Subsequent Default, Count | Loan	[3],[5]	0		2
Subsequent Default, Balance	[3],[5]	$ 0		$ 261

[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.

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Narrative) (Detail)		3 Months Ended				12 Months Ended
		Mar. 31, 2016 USD ($) contracts Rate		Mar. 31, 2015 USD ($) contracts Rate		Mar. 31, 2016 USD ($) Loan		Mar. 31, 2015 USD ($) Loan		Dec. 31, 2015 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number		11	[1],[2]	3	[1],[2]	20	[3],[4]	18	[3],[4]
Allowance for loan losses related to impaired loans		$ 7,775,000		$ 6,199,000		$ 7,775,000		$ 6,199,000		$ 6,380,000
TDRs, Additions		$ 8,723,000	[1],[2]	$ 294,000	[1],[2]	10,463,000	[3],[4]	7,017,000	[3],[4]
Weighted average extension term		3 months		17 months
Weighted average stated interest rate, basis points | Rate		0.17%		1.80%
Weighted average interest only term				24 months
Loan forgiveness		$ 0		$ 0
Modification to Interest Only Payments
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number | contracts	[1]	0		1
TDRs, Additions	[1]	$ 0		$ 50,000
Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs		$ 52,555,000		67,218,000		52,555,000		$ 67,218,000		$ 51,853,000
TDRs, number | contracts		102
Allowance for loan losses related to impaired loans		$ 3,100,000				3,100,000
Interest income, passage of time		90,000		$ 193,000
Residential Real Estate | Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Foreclosed residential properties		$ 13,300,000				$ 13,300,000

[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.

XML

Goodwill And Other Intangible Assets (Goodwill Assets by Business Segment) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 471,761
Goodwill Acquired	11,305
Impairment Loss	0
Goodwill Adjustments	1,214
Ending balance	484,280
Community banking
Goodwill [Roll Forward]
Beginning balance	401,612
Goodwill Acquired	11,305
Impairment Loss	0
Goodwill Adjustments	(195)
Ending balance	412,722
Specialty finance
Goodwill [Roll Forward]
Beginning balance	38,035
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	1,409
Ending balance	39,444
Wealth management
Goodwill [Roll Forward]
Beginning balance	32,114
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	$ 32,114

XML

Goodwill And Other Intangible Assets (Summary of Finite-Lived Intangible Assets) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	$ 23,725	$ 24,209	$ 18,858
Core deposit intangibles | Community banking
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	35,654	34,841	25,881
Accumulated amortization	(18,543)	(17,382)	(14,192)
Net carrying amount	17,111	17,459	11,689
Customer list intangibles | Specialty finance
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,800	1,800	1,800
Accumulated amortization	(1,076)	(1,052)	(971)
Net carrying amount	724	748	829
Customer list and other intangibles | Wealth management
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,940	7,940	7,940
Accumulated amortization	(2,050)	(1,938)	(1,600)
Net carrying amount	$ 5,890	$ 6,002	$ 6,340

XML

Goodwill And Other Intangible Assets (Estimated Amortization) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Actual in three months ended March 31, 2016	$ 1,298	$ 1,013
Estimated remaining in 2016	3,477
Estimated—2017	4,013
Estimated—2018	3,493
Estimated—2019	2,961
Estimated—2020	$ 2,410

XML

Goodwill And Other Intangible Assets (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Indefinite-lived Intangible Assets [Line Items]
Goodwill Adjustments	$ 1,214
Amortization of other intangible assets	1,298	$ 1,013
Community banking
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Period Increase (Decrease)	11,100
Goodwill Adjustments	$ (195)
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 Adjustments	$ 1,409
Specialty finance | Customer list intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets	18 years
Wealth management
Indefinite-lived Intangible Assets [Line Items]
Goodwill Adjustments	$ 0
Wealth management | Customer list intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets	10 years

XML

Deposits (Summary of Deposits) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Balance:
Non-interest bearing	$ 5,205,410	$ 4,836,420	$ 3,779,609
NOW and interest bearing demand deposits	2,369,474	2,390,217	2,262,928
Wealth management deposits	1,761,710	1,643,653	1,528,963
Money market	4,157,083	4,041,300	3,791,762
Savings	1,766,552	1,723,367	1,563,752
Time certificates of deposit	3,956,842	4,004,677	4,011,755
Total deposits	$ 19,217,071	$ 18,639,634	$ 16,938,769
Mix:
Non-interest bearing	27.00%	26.00%	22.00%
NOW and interest bearing demand deposits	12.00%	13.00%	13.00%
Wealth management deposits	9.00%	9.00%	9.00%
Money market	22.00%	22.00%	23.00%
Savings	9.00%	9.00%	9.00%
Time certificates of deposit	21.00%	21.00%	24.00%
Total deposits	100.00%	100.00%	100.00%

XML

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Debt Disclosure [Abstract]
Federal Home Loan Bank advances	$ 799,482	$ 853,431	$ 406,839
Other borrowings:
Notes payable	63,683	67,429	0
Short-term borrowings	47,680	63,887	50,076
Other	18,811	18,965	18,538
Secured borrowings	122,952	115,504	118,102
Total other borrowings	253,126	265,785	186,716
Subordinated notes	138,888	138,861	138,782
Total Federal Home Loan Bank advances, other borrowings and subordinated notes	$ 1,191,496	$ 1,258,077	$ 732,337

XML

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	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess pledged collateral	$ 12,739
Securities sold under agreements to repurchase	47,680
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	60,400
Securities sold under agreements to repurchase	47,700	$ 58,900	$ 50,100
Maturity Overnight | 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	60,419
Available-for-sale securities | Maturity Overnight | U.S. Treasury
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	9,992
Available-for-sale securities | Maturity Overnight | Corporate notes, Financial issuers
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	4,937
Available-for-sale securities | Maturity Overnight | Mortgage-backed securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	33,943
Held-to-maturity securities | Maturity Overnight | U.S. Government agencies
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	$ 11,547

XML

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended	24 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2015	Jun. 15, 2015	Mar. 31, 2015
Debt Instrument [Line Items]
Notes payable	$ 67,429		$ 63,683	$ 67,429	$ 67,429		$ 0
Loan agreement with unaffiliated banks			150,000
Short-term borrowings	63,887		47,680	63,887	63,887		50,076
Securities sold under agreements to repurchase			47,680
Fixed rate promissory note	18,965		18,811	18,965	18,965		18,538
Secured borrowings	115,504		122,952	115,504	115,504		118,102
Subordinated notes	138,861		$ 138,888	138,861	138,861		138,782
Loans Payable
Debt Instrument [Line Items]
Debt instrument, Issuance date			Dec. 15, 2014
Term Facility
Debt Instrument [Line Items]
Notes payable	67,400		$ 63,700	67,400	67,400	$ 75,000	0
Maturity date			Jun. 15, 2020
Debt instrument, Date of first required payment			Sep. 30, 2015
Debt instrument, Frequency of periodic payment			quarterly
Revolving Credit Facility
Debt Instrument [Line Items]
Notes payable	0		$ 0	$ 0	0		0
Maximum borrowing capacity			$ 75,000
Maturity date			Dec. 12, 2016	Dec. 14, 2015
Debt instrument, Frequency of periodic payment			quarterly
Line of credit facility, Unused capacity, Commitment fee percentage			0.20%
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under agreements to repurchase	58,900		$ 47,700	$ 58,900	58,900		50,100
Pledged financial instruments, Not separately reported, Securities for repurchase agreements			$ 60,400
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	18,300		$ 18,100	18,300	18,300		$ 18,500
Contractual rate			3.75%
Non Recourse Debt
Debt Instrument [Line Items]
Fixed rate promissory note	732		$ 662	$ 732	732
Secured Debt
Debt Instrument [Line Items]
Maturity date		Dec. 15, 2015	Dec. 15, 2017
Contractual rate			1.5322%
Proceeds from issuance of debt	$ 10,000	$ 150,000			$ 160,000
Subordinated Debt
Debt Instrument [Line Items]
Maturity date			Jun. 13, 2024
Contractual rate			5.00%
Base Rate Loan | Base Rate | Term Facility
Debt Instrument [Line Items]
Basis spread on variable rate			0.75%
Base Rate Loan | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate			0.50%
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) | Term Facility
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Eurodollar Rate Loan | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate			1.50%

XML

Junior Subordinated Debentures (Summary of Junior Subordinated Debentures) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Jan. 22, 2016	Dec. 31, 2015	Mar. 31, 2015
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566		$ 268,566	$ 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	3.87%
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	3.43%
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	3.23%
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	2.58%
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	25,000	$ 15,000	$ 40,000
Junior subordinated debentures	$ 26,238	$ 15,000
Rate Structure	L+1.45
Contractual rate	2.08%
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	2.26%
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	3.62%
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	3.62%
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	3.63%
Issue Date	May 31, 2004
Maturity Date	May 31, 2034
Earliest Redemption Date	May 31, 2009
Suburban Illinois Capital Trust II
Subordinated Borrowing [Line Items]
Common Securities	$ 464
Trust Preferred Securities	15,000
Junior subordinated debentures	$ 15,464
Rate Structure	L+1.75
Contractual rate	2.38%
Issue Date	Dec. 31, 2006
Maturity Date	Dec. 31, 2036
Earliest Redemption Date	Dec. 31, 2011
Community Financial Shares Statutory Trust II
Subordinated Borrowing [Line Items]
Common Securities	$ 109
Trust Preferred Securities	3,500
Junior subordinated debentures	$ 3,609
Rate Structure	L+1.62
Contractual rate	2.25%
Issue Date	Jun. 30, 2007
Maturity Date	Sep. 30, 2037
Earliest Redemption Date	Jun. 30, 2012
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate	2.83%
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%
London Interbank Offered Rate (LIBOR) | Suburban Illinois Capital Trust II
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.75%
London Interbank Offered Rate (LIBOR) | Community Financial Shares Statutory Trust II
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.62%

XML

Junior Subordinated Debentures (Narrative) (Detail) - USD ($) $ in Thousands		3 Months Ended
	Jan. 22, 2016	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Subordinated Borrowing [Line Items]
Percentage ownership interest in subsidiary trusts		100.00%
Number of unconsolidated subsidiary trusts		11
Common securities, approximate percentage of junior subordinated debentures		3.00%
Trust preferred securities, approximate percentage of junior subordinated debentures		97.00%
Junior subordinated debentures		$ 253,566	$ 249,493	$ 268,566
Gains on early extinguishment of debt		$ 4,305	0
Consecutive quarters of deferred payment		20
Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Trust Preferred Securities	$ 15,000	$ 25,000		40,000
Junior subordinated debentures	15,000	$ 26,238
Gains on early extinguishment of debt	$ 4,300
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate		2.83%
Debt, Hedge Adjusted Weighted Average Interest Rate		3.71%
Tier One Risk Based Capital		$ 0	60,500	65,100
Tier Two Risk Based Capital		245,500	$ 181,500	$ 195,400
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

XML

Segment Information (Summary of Segment Information) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net interest income	$ 171,509	$ 151,891
Net interest income, Change in Contribution	$ 19,618
Net interest income, Change in Contribution Percentage	13.00%
Non-interest income	$ 68,752	64,541
Non-interest income, Change in Contribution	$ 4,211
Non-interest income, Change in Contribution Percentage	7.00%
Net revenue	$ 240,261	216,432
Net revenue, Change in Contribution	$ 23,829
Net revenue, Change in Contribution Percentage	11.00%
Segment profit	$ 49,111	39,052
Segment profit, Change in Contribution	$ 10,059
Segment profit, Change in Contribution Percentage	26.00%
Segment assets	$ 23,488,168	20,371,566	$ 22,909,348
Segment assets, Change in Contribution	$ 3,116,602
Segment assets, Change in Contribution Percentage	15.00%
Operating Segments
Segment Reporting Information [Line Items]
Net interest income	$ 167,361	147,916
Net interest income, Change in Contribution	$ 19,445
Net interest income, Change in Contribution Percentage	13.00%
Non-interest income	$ 76,822	71,511
Non-interest income, Change in Contribution	$ 5,311
Non-interest income, Change in Contribution Percentage	7.00%
Net revenue	$ 244,183	219,427
Net revenue, Change in Contribution	$ 24,756
Net revenue, Change in Contribution Percentage	11.00%
Operating Segments | Community banking
Segment Reporting Information [Line Items]
Net interest income	$ 141,698	122,681
Net interest income, Change in Contribution	$ 19,017
Net interest income, Change in Contribution Percentage	16.00%
Non-interest income	$ 45,667	44,912
Non-interest income, Change in Contribution	$ 755
Non-interest income, Change in Contribution Percentage	2.00%
Net revenue	$ 187,365	167,593
Net revenue, Change in Contribution	$ 19,772
Net revenue, Change in Contribution Percentage	12.00%
Segment profit	$ 34,757	24,965
Segment profit, Change in Contribution	$ 9,792
Segment profit, Change in Contribution Percentage	39.00%
Segment assets	$ 19,575,709	17,039,668
Segment assets, Change in Contribution	$ 2,536,041
Segment assets, Change in Contribution Percentage	15.00%
Operating Segments | Specialty finance
Segment Reporting Information [Line Items]
Net interest income	$ 21,180	21,046
Net interest income, Change in Contribution	$ 134
Net interest income, Change in Contribution Percentage	1.00%
Non-interest income	$ 12,403	7,871
Non-interest income, Change in Contribution	$ 4,532
Non-interest income, Change in Contribution Percentage	58.00%
Net revenue	$ 33,583	28,917
Net revenue, Change in Contribution	$ 4,666
Net revenue, Change in Contribution Percentage	16.00%
Segment profit	$ 11,472	10,952
Segment profit, Change in Contribution	$ 520
Segment profit, Change in Contribution Percentage	5.00%
Segment assets	$ 3,322,807	2,783,958
Segment assets, Change in Contribution	$ 538,849
Segment assets, Change in Contribution Percentage	19.00%
Operating Segments | Wealth management
Segment Reporting Information [Line Items]
Net interest income	$ 4,483	4,189
Net interest income, Change in Contribution	$ 294
Net interest income, Change in Contribution Percentage	7.00%
Non-interest income	$ 18,752	18,728
Non-interest income, Change in Contribution	$ 24
Non-interest income, Change in Contribution Percentage	0.00%
Net revenue	$ 23,235	22,917
Net revenue, Change in Contribution	$ 318
Net revenue, Change in Contribution Percentage	1.00%
Segment profit	$ 2,882	3,135
Segment profit, Change in Contribution	$ (253)
Segment profit, Change in Contribution Percentage	(8.00%)
Segment assets	$ 589,652	547,940
Segment assets, Change in Contribution	$ 41,712
Segment assets, Change in Contribution Percentage	8.00%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net interest income	$ 4,148	3,975
Net interest income, Change in Contribution	$ 173
Net interest income, Change in Contribution Percentage	4.00%
Non-interest income	$ (8,070)	(6,970)
Non-interest income, Change in Contribution	$ (1,100)
Non-interest income, Change in Contribution Percentage	(16.00%)
Net revenue	$ (3,922)	$ (2,995)
Net revenue, Change in Contribution	$ (927)
Net revenue, Change in Contribution Percentage	(31.00%)

XML

Segment Information (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2016 segment
Segment Reporting Information [Line Items]
Number of reportable segments	3
Number Of Subsidiaries	15
Community banking
Segment Reporting Information [Line Items]
Number of reportable segments	1

XML

Derivative Financial Instruments (Interest Rate Cap Derivative Summary) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
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	$ 0
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	$ 0
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	$ 15
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	2
Total Interest Rate Cap
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	796,500
Fair Value as of End of Period	$ 81
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	$ 0
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	$ 0
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	$ 34
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	30
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	$ 64

XML

Derivative Financial Instruments (Schedule Of Fair Value Of Derivative Financial Instruments) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	$ 73,985	$ 42,779	$ 47,550
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	74,019	42,458	47,698
Other Assets
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	86,337	51,298	62,984
Other Assets | Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	64	269	688
Other Assets | Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	64	242	668
Other Assets | Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	0	27	20
Other Assets | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	86,273	51,029	62,296
Other Assets | Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	73,921	42,510	46,862
Other Assets | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	12,104	7,401	15,296
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	745	0
Other Assets | Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative Assets, Fair Value, Amount not Offset Against Collateral	248	373	138
Other Liabilities
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	81,712	45,019	55,225
Other Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	1,256	989	1,867
Other Liabilities | Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	586	846	1,867
Other Liabilities | Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	670	143	0
Other Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	80,456	44,030	53,358
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	72,763	41,469	45,831
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	3,574	171	0
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	3,857	2,275	7,410
Other Liabilities | Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative Liabilities, Fair Value, Amount Not Offset Against Collateral	$ 262	$ 115	$ 117

XML

Derivative Financial Instruments (Schedule Of Cash Flow Hedging Instruments) (Detail) $ in Thousands	Mar. 31, 2016 USD ($)
Total Interest Rate Cap
Derivative [Line Items]
Notional amount	$ 796,500
Fair Value Asset (Liability)	81
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)	(370)
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)	(216)
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Swap
Derivative [Line Items]
Notional amount	75,000
Fair Value Asset (Liability)	(586)
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)	0
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)	0
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)	34
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)	30
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Cap
Derivative [Line Items]
Notional amount	350,000
Fair Value Asset (Liability)	64
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swaps and Caps
Derivative [Line Items]
Notional amount	425,000
Fair Value Asset (Liability)	$ (522)

XML

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
	Mar. 31, 2016	Mar. 31, 2015
Rollforward of AOCI from Cash Flow Hedging Derivatives [Roll Forward]
Unrealized loss at beginning of period	$ (3,529)	$ (4,062)
Amount reclassified from accumulated other comprehensive income to interest expense on deposits and junior subordinated debentures	723	414
Amount of loss recognized in other comprehensive income	(245)	(975)
Unrealized loss at end of period	$ (3,051)	$ (4,623)

XML

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
	Mar. 31, 2016	Mar. 31, 2015
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ (554)	$ (32)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	515	28
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ (39)	$ (4)

XML

Derivative Financial Instruments (Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest Rate Swaps and Caps | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 76	$ (450)
Mortgage Banking Derivatives | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	1,864	2,094
Covered Call Options | Fees from covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	1,712	4,360
Foreign Exchange Contract | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (63)	$ (51)

XML

Derivative Financial Instruments (Derivative Asset and Liability Balance Sheet Offsetting) (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Derivative Assets
Gross Amounts Recognized		$ 73,985	$ 42,779	$ 47,550
Less: Amounts offset in the Statements of Financial Condition		0	0	0
Net amount presented in the Statements of Financial Condition		73,985	42,779	47,550
Offsetting Derivative Positions		(156)	(753)	(1,563)
Collateral Posted		0	0	0
Net Credit Exposure		73,829	42,026	45,987
Derivative Liabilities
Gross Amounts Recognized		74,019	42,458	47,698
Less: Amounts offset in the Statements of Financial Condition		0	0	0
Net amount presented in the Statements of Financial Condition		74,019	42,458	47,698
Offsetting Derivative Positions		(156)	(753)	(1,563)
Collateral Posted	[1]	(73,863)	(41,705)	(46,135)
Net Credit Exposure		0	0	0
Security Owned and Pledged as Collateral, Fair Value		$ 81,600	$ 45,500	$ 51,300

[1] As of March 31, 2016, December 31, 2015 and March 31, 2015, the Company posted collateral of $81.6 million, $45.5 million and $51.3 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.

XML

Derivative Financial Instruments (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2016 USD ($) contracts derivative_instruments	Mar. 31, 2015 USD ($) derivative_instruments	Dec. 31, 2015 derivative_instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income to interest expense in the next twelve months	$ 2,300,000
Basis Amortization of Hedged item no longer in a Hedging Relationship	43,000	$ 43,000
Derivative, Net Liability Position, Aggregate Fair Value	$ 75,600,000
Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | contracts	4
Notional amount	$ 446,500,000
Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	3,700,000,000
Forward Commitments to Sell Mortgage Loans | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	982,400,000
Interest Rate Lock Commitments | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	623,400,000
Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 21,500,000
Covered Call Options | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Number of Instruments Held | derivative_instruments	0	0	0
Minimum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date	Apr. 30, 2016
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	4
Notional amount	$ 20,800,000
Fair Value Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ (39,000)	$ (4,000)
Cash flow hedge of variable rate deposits | 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
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
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
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
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
De-designated Hedge | Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 96,500,000

XML

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	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	$ 770,983	$ 1,716,388	$ 1,721,030
Trading account securities	2,116	448	7,811
Mortgage loans held-for-sale	314,554	388,038	446,355
Derivative assets	73,985	42,779	47,550
Derivative liabilities	74,019	42,458	47,698
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	117,089	306,729	271,474
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	94,172	70,236	661,793
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	121,195	108,595	269,912
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	302,695	1,092,597	329,591
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	55,619	56,686	54,446
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	2,116	448	7,811
Mortgage loans held-for-sale	314,554	388,038	446,355
Mortgage servicing rights	10,128	9,092	7,852
Nonqualified deferred compensation assets	8,926	8,517	8,718
Derivative assets		51,298	62,984
Total	1,193,044	2,173,781	2,254,750
Derivative liabilities		45,019	55,225
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	117,089	306,729	271,474
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	94,172	70,236	661,793
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	121,195	108,595	269,912
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	80,213	81,545	133,814
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	302,695	1,092,597	329,591
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	55,619	56,686	54,446
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	2,116	448	7,811
Mortgage loans held-for-sale	314,554	388,038	446,355
Mortgage servicing rights	0	0	0
Nonqualified deferred compensation assets	8,926	8,517	8,718
Derivative assets	86,337	51,298	62,984
Total	1,088,620	2,070,877	2,166,193
Derivative liabilities	81,712	45,019	55,225
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	117,089	306,729	271,474
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	94,172	70,236	661,793
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	50,953	39,982	213,863
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	80,213	81,545	133,814
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	302,695	1,092,597	329,591
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	31,565	31,487	29,790
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	0	0	0
Mortgage servicing rights	10,128	9,092	7,852
Nonqualified deferred compensation assets	0	0	0
Derivative assets	0	0	0
Total	104,424	102,904	88,557
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	70,242	68,613	56,049
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	24,054	25,199	24,656
Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	86,337	51,298	62,984
Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$ 81,712	$ 45,019	$ 55,225

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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
	Mar. 31, 2016	Mar. 31, 2015
Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 9,092	$ 8,435
Total net gains (losses) included in Net income	1,036	(583)	[1]
Net transfers into/(out of) Level 3		0
Ending Balance	10,128	7,852
Municipal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	68,613	58,953
Total net gains (losses) included in Other comprehensive income	(13)	203
Purchases	3,271	6,674
Settlements	(1,629)	(9,781)
Ending Balance	70,242	56,049
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	25,199	23,711
Total net gains (losses) included in Other comprehensive income	(1,145)	945
Net transfers into/(out of) Level 3		0
Ending Balance	$ 24,054	$ 24,656

[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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Fair Values Of Assets And Liabilities (Summary Of Assets Measured At Fair Value On A Nonrecurring Basis) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	[1]	$ 96,110	$ 101,255	$ 112,404
Fair Value Losses Recognized, Impaired loans—collateral based		2,333
Fair Value Losses Recognized, Other real estate owned	[2]	1,087
Fair Value Losses Recognized, Total		3,420
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		66,008
Other real estate owned	[2]	58,978
Total		124,986
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		0
Other real estate owned	[2]	0
Total		0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		0
Other real estate owned	[2]	0
Total		0
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		66,008
Other real estate owned		58,978
Total		$ 124,986

[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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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
		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		$ 770,983	$ 1,716,388	$ 1,721,030
Impaired loans—collateral based	[1]	$ 96,110	101,255	112,404
Other Real Estate Owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		$ 121,195	108,595	269,912
Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		55,619	56,686	54,446
Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Mortgage servicing rights		10,128	9,092	7,852
Fair Value, Measurements, Recurring | Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		121,195	108,595	269,912
Fair Value, Measurements, Recurring | Equity securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities, at fair value		55,619	56,686	54,446
Fair Value, Measurements, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based		66,008
Other real estate owned	[2]	58,978
Level 3 | Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Mortgage servicing rights		$ 10,128	9,092	7,852
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		4.00%
Fair Value Inputs, Prepayment Rate		1.00%
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		7.00%
Fair Value Inputs, Prepayment Rate		46.00%
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		4%-7%
Weighted Average of Inputs		6.20%
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		1%-46%
Weighted Average of Inputs		11.39%
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		$ 70,242	68,613	56,049
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		$ 24,054	$ 25,199	$ 24,656
Valuation Methodology		Discounted cash flows
Significant Unobservable Input		Discount rate
Range of Inputs		2.81%-3.13%
Weighted Average of Inputs		2.98%
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		2.81%
Level 3 | Fair Value, Measurements, Recurring | Equity securities | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate		3.13%
Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based		$ 66,008
Other real estate owned		$ 58,978
Level 3 | Fair Value, Measurements, Nonrecurring | Impaired Loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology		Appraisal value
Significant Unobservable Input		Appraisal adjustment - cost of sale
Range of Inputs		10%
Weighted Average of Inputs		10.00%
Impact to valuation from an increased or higher input value		Decrease
Level 3 | Fair Value, Measurements, Nonrecurring | Impaired Loans | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Level 3 | Fair Value, Measurements, Nonrecurring | Impaired Loans | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Level 3 | Fair Value, Measurements, Nonrecurring | Other Real Estate Owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology		Appraisal value
Significant Unobservable Input		Appraisal adjustment - cost of sale
Range of Inputs		10%
Weighted Average of Inputs		10.00%
Impact to valuation from an increased or higher input value		Decrease
Level 3 | Fair Value, Measurements, Nonrecurring | Other Real Estate Owned | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Level 3 | Fair Value, Measurements, Nonrecurring | Other Real Estate Owned | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%

[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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Fair Values Of Assets And Liabilities (Summary Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing deposits with banks	$ 817,013	$ 607,782	$ 697,799
Available-for-sale securities, at fair value	770,983	1,716,388	1,721,030
Held-to-maturity securities, Amortized Cost	911,715	884,826	0
Trading account securities	2,116	448	7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222	101,581	92,948
Brokerage customer receivables	28,266	27,631	25,287
Mortgage loans held-for-sale, at fair value	314,554	388,038	446,355
Derivative assets	73,829	42,026	45,987
FDIC indemnification asset	0	0	10,224	$ 11,846
Accrued interest receivable and other	647,853	597,099	526,029
Federal Home Loan Bank advances	799,482	853,431	406,839
Other borrowings	253,126	265,785	186,716
Subordinated notes	138,888	138,861	138,782
Junior subordinated debentures	253,566	268,566	249,493
Derivative liabilities	74,019	42,458	47,698
FDIC Indemnification Liability	10,029	6,100
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	212,300	275,795	290,872
Interest bearing deposits with banks	817,013	607,782	697,799
Available-for-sale securities, at fair value	770,983	1,716,388	1,721,030
Held-to-maturity securities, Amortized Cost	911,715	884,826	0
Trading account securities	2,116	448	7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222	101,581	92,948
Brokerage customer receivables	28,266	27,631	25,287
Mortgage loans held-for-sale, at fair value	314,554	388,038	446,355
Total loans	17,585,261	17,266,790	15,162,753
Mortgage servicing rights	10,128	9,092	7,852
Nonqualified deferred compensation assets	8,926	8,517	8,718
Derivative assets	86,337	51,298	62,984
FDIC indemnification asset	0	0	10,224
Accrued interest receivable and other	202,018	193,092	181,998
Total financial assets	21,062,839	21,531,278	18,716,631
Non-maturity deposits	15,260,229	14,634,957	12,927,014
Deposits with stated maturities	3,956,842	4,004,677	4,011,755
Federal Home Loan Bank advances	799,482	853,431	406,839
Other borrowings	253,126	265,785	186,716
Subordinated notes	138,888	138,861	138,782
Junior subordinated debentures	253,566	268,566	249,493
Derivative liabilities	81,712	45,019	55,225
FDIC Indemnification Liability	10,029	6,100	0
Accrued interest payable	9,208	7,394	8,583
Total financial liabilities	20,763,082	20,224,790	17,984,407
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	212,300	275,795	290,872
Interest bearing deposits with banks	817,013	607,782	697,799
Available-for-sale securities, at fair value	770,983	1,716,388	1,721,030
Held-to-maturity securities, Amortized Cost	924,344	878,111	0
Trading account securities	2,116	448	7,811
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	113,222	101,581	92,948
Brokerage customer receivables	28,266	27,631	25,287
Mortgage loans held-for-sale, at fair value	314,554	388,038	446,355
Total loans	18,551,606	18,106,829	15,868,532
Mortgage servicing rights	10,128	9,092	7,852
Nonqualified deferred compensation assets	8,926	8,517	8,718
Derivative assets	86,337	51,298	62,984
FDIC indemnification asset	0	0	10,224
Accrued interest receivable and other	202,018	193,092	181,998
Total financial assets	22,041,813	22,364,602	19,422,410
Non-maturity deposits	15,260,229	14,634,957	12,927,014
Deposits with stated maturities	3,956,157	3,998,180	4,017,565
Federal Home Loan Bank advances	807,265	863,437	422,305
Other borrowings	253,126	265,785	186,716
Subordinated notes	139,849	140,302	147,851
Junior subordinated debentures	254,290	268,046	250,196
Derivative liabilities	81,712	45,019	55,225
FDIC Indemnification Liability	10,029	6,100	0
Accrued interest payable	9,208	7,394	8,583
Total financial liabilities	$ 20,771,865	$ 20,229,220	$ 18,015,455

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Fair Values Of Assets And Liabilities (Narrative) (Detail) - USD ($)		3 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		$ 770,983,000	$ 1,716,388,000	$ 1,721,030,000
Mortgage loans held-for-sale		314,554,000	388,038,000	446,355,000
Impaired loans—collateral based	[1]	$ 96,110,000	101,255,000	112,404,000
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		$ 770,983,000	1,716,388,000	1,721,030,000
Mortgage servicing rights		10,128,000	9,092,000	7,852,000
Remaining contractual principal balance outstanding, mortgage loans held-for-sale		299,000,000	372,000,000	421,200,000
Mortgage loans held-for-sale		314,554,000	388,038,000	446,355,000
Impaired loans—collateral based		66,000,000
Portion at Other than Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		30,100,000
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		121,195,000	108,595,000	269,912,000
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		55,619,000	56,686,000	54,446,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights		10,128,000	9,092,000	7,852,000
Mortgage loans held-for-sale		314,554,000	388,038,000	446,355,000
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		121,195,000	108,595,000	269,912,000
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		55,619,000	56,686,000	54,446,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		66,008,000
Other real estate owned	[2]	58,978,000
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights		10,128,000	9,092,000	7,852,000
Mortgage loans held-for-sale		$ 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		4.00%
Fair Value Inputs, Prepayment Rate		1.00%
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		7.00%
Fair Value Inputs, Prepayment Rate		46.00%
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		6.20%
Fair Value Inputs, Prepayment Rate		11.39%
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		$ 70,242,000	68,613,000	56,049,000
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		$ 24,054,000	25,199,000	24,656,000
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		2.81%
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		3.13%
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		2.98%
Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based		$ 66,008,000
Other real estate owned		$ 58,978,000
Level 3 | Fair Value, Measurements, Nonrecurring | Minimum | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Level 3 | Fair Value, Measurements, Nonrecurring | Maximum | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		10.00%
Non-performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale		$ 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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Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Detail)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation [Abstract]
Expected dividend yield	0.90%	0.90%
Expected volatility	25.20%	26.50%
Risk-free rate	1.30%	1.30%
Expected option life (in years)	4 years 6 months	4 years 6 months

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Stock-Based Compensation Plans (Summary Of Stock Option Activity) (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common Shares, Outstanding at beginning of the period		1,551,734	1,618,426
Common Shares, Conversion of options of acquired company			16,364
Common Shares, Granted		554,107	487,259
Common Shares, Exercised		(19,110)	(51,522)
Common Shares, Forfeited or canceled		(57,004)	(175,579)
Common Shares, Outstanding at end of the period		2,029,727	1,894,948
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		$ 41.32	$ 43.00
Weighted Average Strike Price, Conversion of options of acquired company			21.18
Weighted Average Strike Price, Granted		40.87	44.11
Weighted Average Strike Price, Exercised		32.86	31.50
Weighted Average Strike Price, Forfeited or canceled		51.08	54.40
Weighted Average Strike Price, Outstanding at end of period		$ 41.00	$ 42.35
Stock Options, Exercisable		983,659	1,158,991
Stock Options, Weighted Average Strike Price, Exercisable		$ 39.13	$ 41.00
Stock Options, Remaining Contractual Term, Outstanding, Years	[1]	5 years	4 years 7 months 6 days
Stock Options, Remaining Contractual Term, Exercisable, Years	[1]	3 years 9 months 18 days	3 years 3 months 18 days
Stock Options, Intrinsic Value, Outstanding	[2]	$ 7,951	$ 11,649
Stock Options, Intrinsic Value, Exercisable	[2]	$ 5,885	$ 9,291

[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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Stock-Based Compensation Plans (Summary Of Plans' Restricted Share And Performance-Vested Stock Award Activity) (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
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	137,593	146,112
Shares, Granted	10,516	12,300
Shares, Vested and issued	(3,726)	(4,925)
Shares, Outstanding, End of the Period	144,383	153,487
Shares, Vested, but not issuable	88,493	85,000
Weighted Average Grant-Date Fair Value	$ 49.14	$ 47.53	$ 49.63	$ 47.45
Weighted Average Grant-Date Fair Value, Granted	40.77	44.11
Weighted Average Grant-Date Fair Value, Vested and issued	43.87	36.74
Weighted Average Grant-Date Fair Value, Vested, but not issuable	$ 51.43	$ 51.88
Performance Shares
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	276,533	295,679
Shares, Granted	116,576	102,828
Shares, Vested and issued	(78,410)	(78,590)
Shares, Forfeited	(7,417)	(29,926)
Shares, Outstanding, End of the Period	307,282	289,991
Shares, Vested, but not issuable	6,612	0
Weighted Average Grant-Date Fair Value	$ 43.59	$ 42.90	$ 43.01	$ 38.18
Weighted Average Grant-Date Fair Value, Granted	40.87	44.11
Weighted Average Grant-Date Fair Value, Vested and issued	37.90	31.10
Weighted Average Grant-Date Fair Value, Forfeited	39.32	31.41
Weighted Average Grant-Date Fair Value, Vested, but not issuable	$ 37.85	$ 0.00

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Stock-Based Compensation Plans (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	May. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 2,500	$ 2,200
Weighted average grant date fair value per share of options granted	$ 8.60	$ 9.68
Aggregate intrinsic value of options exercised	$ 196	$ 744
Two Thousand And Fifteen Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved for issuance			5,485,000
Two Thousand And Seven Plan And Two Thousand And Fifteen Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Two Thousand And Seven Plan And Two Thousand And Fifteen 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
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%

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Shareholders' Equity And Earnings Per Share (Components Of Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	$ (62,708)	$ (37,332)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	21,077	6,307
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(365)	(66)
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,086
Other comprehensive income, net of tax	22,798	6,241
Balance at end of period	(39,910)	(31,091)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(17,674)	(9,533)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	15,188	15,945
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(804)	(318)
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,086
Other comprehensive income, net of tax	16,470	15,627
Balance at end of period	(1,204)	6,094
Accumulated Unrealized Losses on Derivative Instruments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(2,193)	(2,517)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(149)	(593)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	439	252
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	0
Other comprehensive income, net of tax	290	(341)
Balance at end of period	(1,903)	(2,858)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(42,841)	(25,282)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	6,038	(9,045)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Amount reclassified from accumulated other comprehensive income (loss) related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	0
Other comprehensive income, net of tax	6,038	(9,045)
Balance at end of period	$ (36,803)	$ (34,327)

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Shareholders' Equity And Earnings Per Share (Other Comprehensive Income Reclassified from AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains on available-for-sale securities, net	$ 1,325	$ 524
Interest on deposits	12,781	11,814
Interest on junior subordinated debentures	2,220	1,933
Income before taxes	78,497	63,035
Income tax expense	(29,386)	(23,983)
Net income	49,111	39,052
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]
Gains on available-for-sale securities, net	1,325	524
Income before taxes	1,325	524
Income tax expense	(521)	(206)
Net income	804	318
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 deposits	255	0
Interest on junior subordinated debentures	468	414
Income before taxes	(723)	(414)
Income tax expense	284	162
Net income	$ (439)	$ (252)

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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
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income	$ 49,111	$ 39,052
Less: Preferred stock dividends and discount accretion	3,628	1,581
Net income applicable to common shares—Basic	45,483	37,471
Add: Dividends on convertible preferred stock, if dilutive	1,578	1,581
Net income applicable to common shares—Diluted	$ 47,061	$ 39,052
Weighted average common shares outstanding	48,448	47,239
Effect of dilutive potential common shares
Common stock equivalents	750	1,158
Convertible preferred stock, if dilutive	3,070	3,075
Total dilutive potential common shares	3,820	4,233
Weighted average common shares and effect of dilutive potential common shares	52,268	51,472
Net income per common share-Basic	$ 0.94	$ 0.79
Net income per common share-Diluted	$ 0.90	$ 0.76

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Shareholders' Equity And Earnings Per Share (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended					3 Months Ended		12 Months Ended
	Feb. 25, 2016	Feb. 11, 2016	Dec. 19, 2008	Jan. 31, 2016	Jul. 31, 2015	Jun. 30, 2015	Jan. 31, 2015	Mar. 31, 2012	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Temporary Equity [Line Items]
Cash dividends declared per common share				$ 0.12					$ 0.12	$ 0.11
Common stock dividends per share declared annualized				$ 0.48
Dividends payable, date to be paid	Feb. 25, 2016
Dividends payable, date of record		Feb. 11, 2016
Community Financial Shares, Inc.
Temporary Equity [Line Items]
Common stock, shares issued, acquisition					388,573
Delavan Bancshares
Temporary Equity [Line Items]
Common stock, shares issued, acquisition							422,122
US Treasury
Temporary Equity [Line Items]
Warrants outstanding			1,643,295						367,432
Investment warrants, exercise price			$ 22.82
Warrant termination period			10 years
Warrants exercised									0
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
Preferred stock, value						$ 125,000			$ 125,000	$ 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
Preferred stock, value								$ 126,500	$ 126,257	$ 126,427	$ 126,287
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									30		180
Common stock, shares, conversion of preferred stock									729		4,374
London Interbank Offered Rate (LIBOR) | Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, dividend rate, percentage, variable spread						4.06%

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Regulatory Matters (Schedule Of Adjusted Total Risk Based Capital Ratios) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Beverly Bank
Entity Information [Line Items]
Subordinated debt excluded from Tier Two Capital	$ 13,000	$ 13,000	$ 11,000	$ 11,000	$ 1,000
Total Capital (to Risk Weighted Assets)	9.70%	9.60%	10.10%	10.20%	11.00%
Schaumburg Bank
Entity Information [Line Items]
Subordinated debt excluded from Tier Two Capital	$ 8,500	$ 8,500	$ 3,500	$ 3,500	$ 3,500
Total Capital (to Risk Weighted Assets)	10.20%	10.30%	10.70%	10.80%	10.70%
Barrington Bank
Entity Information [Line Items]
Subordinated debt excluded from Tier Two Capital	$ 5,000	$ 0	$ 0	$ 0	$ 0
Total Capital (to Risk Weighted Assets)	11.40%	11.30%	11.60%	11.40%	11.10%
Old Plank Trail Bank
Entity Information [Line Items]
Subordinated debt excluded from Tier Two Capital	$ 4,000	$ 0	$ 0	$ 0	$ 0
Total Capital (to Risk Weighted Assets)	10.80%	11.30%	11.80%	11.60%	11.90%

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Regulatory Matters (Narrative) (Detail) $ in Millions	Apr. 29, 2016 USD ($)	Mar. 31, 2016 Rate
Subsequent Event [Line Items]
Capital Required to be Well Capitalized to Risk Weighted Assets | Rate		10.00%
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | Rate		8.00%
Common Equity Tier One Risk Based Capital To Risk Weighted Assets | Rate		6.50%
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | Rate		5.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Number Of Banks Infused	4
Beverly Bank | Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion | $	$ 13.0
Schaumburg Bank | Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion | $	10.3
Barrington Bank | Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion | $	5.0
Old Plank Trail Bank | Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion | $	$ 4.0