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 September 30, 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, 51,771,192 shares, as of October 31, 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	55
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risks	92
ITEM 4.	Controls and Procedures	94
	PART II. — OTHER INFORMATION
ITEM 1.	Legal Proceedings	95
ITEM 1A.	Risk Factors	95
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	96
ITEM 3.	Defaults Upon Senior Securities	NA
ITEM 4.	Mine Safety Disclosures	NA
ITEM 5.	Other Information	NA
ITEM 6.	Exhibits	96
	Signatures	97

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
	(Unaudited)						(Unaudited)
(In thousands, except share data)	September 30, 2016			December 31, 2015			September 30, 2015
Assets
Cash and due from banks	$	242,825		$	271,454		$	247,341
Federal funds sold and securities purchased under resale agreements	4,122			4,341			3,314
Interest bearing deposits with banks	816,104			607,782			701,106
Available-for-sale securities, at fair value	1,650,096			1,716,388			2,214,281
Held-to-maturity securities, at amortized cost ($942.7 million and $878.1 million fair value at September 30, 2016 and December 31, 2015, respectively)	932,767			884,826			—
Trading account securities	1,092			448			3,312
Federal Home Loan Bank and Federal Reserve Bank stock	129,630			101,581			90,308
Brokerage customer receivables	25,511			27,631			28,293
Mortgage loans held-for-sale	559,634			388,038			347,005
Loans, net of unearned income, excluding covered loans	19,101,261			17,118,117			16,316,211
Covered loans	95,940			148,673			168,609
Total loans	19,197,201			17,266,790			16,484,820
Allowance for loan losses	(117,693		)	(105,400		)	(102,996		)
Allowance for covered loan losses	(1,422		)	(3,026		)	(2,918		)
Net loans	19,078,086			17,158,364			16,378,906
Premises and equipment, net	597,263			592,256			587,348
Lease investments, net	116,355			63,170			29,111
Accrued interest receivable and other assets	660,923			597,099			629,211
Trade date securities receivable	677			—			277,981
Goodwill	485,938			471,761			472,166
Other intangible assets	20,736			24,209			25,533
Total assets	$	25,321,759		$	22,909,348		$	22,035,216
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	5,711,042		$	4,836,420		$	4,705,994
Interest bearing	15,436,613			13,803,214			13,522,475
Total deposits	21,147,655			18,639,634			18,228,469
Federal Home Loan Bank advances	419,632			853,431			443,955
Other borrowings	241,366			265,785			259,805
Subordinated notes	138,943			138,861			138,834
Junior subordinated debentures	253,566			268,566			268,566
Trade date securities payable	—			538			617
Accrued interest payable and other liabilities	446,123			390,259			359,234
Total liabilities	22,647,285			20,557,074			19,699,480
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 September 30, 2016, 126,287 shares issued and outstanding at December 31, 2015, and 126,312 shares issued and outstanding at September 30, 2015	126,257			126,287			126,312
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at September 30, 2016, December 31, 2015 and September 30, 2015	125,000			125,000			125,000
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at September 30, 2016, December 31, 2015 and September 30, 2015; 51,811,204 shares issued at September 30, 2016, 48,468,894 shares issued at December 31, 2015 and 48,422,294 shares issued at September 30, 2015	51,811			48,469			48,422
Surplus	1,356,759			1,190,988			1,187,407
Treasury stock, at cost, 96,521 shares at September 30, 2016, 85,615 shares at December 31, 2015, and 85,424 shares at September 30, 2015	(4,522		)	(3,973		)	(3,964		)
Retained earnings	1,051,748			928,211			901,652
Accumulated other comprehensive loss	(32,579		)	(62,708		)	(49,093		)
Total shareholders’ equity	2,674,474			2,352,274			2,335,736
Total liabilities and shareholders’ equity	$	25,321,759		$	22,909,348		$	22,035,216

See accompanying notes to unaudited consolidated financial statements.

1

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
	Three Months Ended						Nine Months Ended
(In thousands, except per share data)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Interest income
Interest and fees on loans	$	190,189		$	167,831		$	541,846		$	482,330
Interest bearing deposits with banks	1,156			372			2,695			993
Federal funds sold and securities purchased under resale agreements	1			1			3			4
Investment securities	15,496			16,130			49,084			44,601
Trading account securities	18			19			43			83
Federal Home Loan Bank and Federal Reserve Bank stock	1,094			821			3,143			2,375
Brokerage customer receivables	195			205			630			591
Total interest income	208,149			185,379			597,444			530,977
Interest expense
Interest on deposits	15,621			12,436			41,996			36,246
Interest on Federal Home Loan Bank advances	2,577			2,458			8,447			6,426
Interest on other borrowings	1,137			1,045			3,281			2,620
Interest on subordinated notes	1,778			1,776			5,332			5,328
Interest on junior subordinated debentures	2,400			2,124			6,973			6,034
Total interest expense	23,513			19,839			66,029			56,654
Net interest income	184,636			165,540			531,415			474,323
Provision for credit losses	9,571			8,322			26,734			23,883
Net interest income after provision for credit losses	175,065			157,218			504,681			450,440
Non-interest income
Wealth management	19,334			18,243			56,506			54,819
Mortgage banking	34,712			27,887			93,254			91,694
Service charges on deposit accounts	8,024			7,403			23,156			20,174
Gains (losses) on investment securities, net	3,305			(98		)	6,070			402
Fees from covered call options	3,633			2,810			9,994			11,735
Trading (losses) gains, net	(432		)	(135		)	(916		)	(452		)
Operating lease income, net	4,459			613			11,270			755
Other	13,569			8,230			40,821			27,380
Total non-interest income	86,604			64,953			240,155			206,507
Non-interest expense
Salaries and employee benefits	103,718			97,749			300,423			282,300
Equipment	9,449			8,456			27,523			24,090
Operating lease equipment depreciation	3,605			431			9,040			547
Occupancy, net	12,767			12,066			36,658			35,818
Data processing	7,432			8,127			21,089			19,656
Advertising and marketing	7,365			6,237			18,085			16,550
Professional fees	5,508			4,100			14,986			13,838
Amortization of other intangible assets	1,085			1,350			3,631			3,297
FDIC insurance	3,686			3,035			11,339			9,069
OREO expense, net	1,436			(367		)	3,344			1,885
Other	20,564			18,790			55,196			54,539
Total non-interest expense	176,615			159,974			501,314			461,589
Income before taxes	85,054			62,197			243,522			195,358
Income tax expense	31,939			23,842			91,255			74,120
Net income	$	53,115		$	38,355		$	152,267		$	121,238
Preferred stock dividends and discount accretion	3,628			4,079			10,884			7,240
Net income applicable to common shares	$	49,487		$	34,276		$	141,383		$	113,998
Net income per common share—Basic	$	0.96		$	0.71		$	2.84		$	2.39
Net income per common share—Diluted	$	0.92		$	0.69		$	2.72		$	2.29
Cash dividends declared per common share	$	0.12		$	0.11		$	0.36		$	0.33
Weighted average common shares outstanding	51,679			48,158			49,763			47,658
Dilutive potential common shares	4,047			4,049			3,931			4,141
Average common shares and dilutive common shares	55,726			52,207			53,694			51,799

See accompanying notes to unaudited consolidated financial statements.

2

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	Three Months Ended						Nine Months Ended
(In thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Net income	$	53,115		$	38,355		$	152,267		$	121,238
Unrealized gains (losses) on securities										—
Before tax	2,525			31,268			33,669			4,144
Tax effect	(993		)	(12,273		)	(13,225		)	(1,645		)
Net of tax	1,532			18,995			20,444			2,499
Reclassification of net gains (losses) included in net income
Before tax	3,305			(98		)	6,070			402
Tax effect	(1,300		)	38			(2,386		)	(158		)
Net of tax	2,005			(60		)	3,684			244
Reclassification of amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	(3,781		)	—			(11,038		)	—
Tax effect	1,486			—			4,331			—
Net of tax	(2,295		)	—			(6,707		)	—
Net unrealized gains (losses) on securities	1,822			19,055			23,467			2,255
Unrealized gains (losses) on derivative instruments
Before tax	2,773			99			2,728			(247		)
Tax effect	(1,090		)	(39		)	(1,072		)	97
Net unrealized gains (losses) on derivative instruments	1,683			60			1,656			(150		)
Foreign currency adjustment
Before tax	(2,237		)	(8,682		)	6,966			(18,900		)
Tax effect	593			2,345			(1,960		)	5,034
Net foreign currency adjustment	(1,644		)	(6,337		)	5,006			(13,866		)
Total other comprehensive income (loss)	1,861			12,778			30,129			(11,761		)
Comprehensive income	$	54,976		$	51,133		$	182,396		$	109,477

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	—			—		—			—			121,238			—			121,238
Other comprehensive loss, net of tax	—			—		—			—			—			(11,761		)	(11,761		)
Cash dividends declared on common stock	—			—		—			—			(15,746		)	—			(15,746		)
Dividends on preferred stock	—			—		—			—			(7,240		)	—			(7,240		)
Stock-based compensation	—			—		7,817			—			—			—			7,817
Issuance of Series D preferred stock	125,000			—		(4,158		)	—			—			—			120,842
Conversion of Series C preferred stock to common stock	(155		)	4		151			—			—			—			—
Common stock issued for:
Acquisitions	—			811		37,912			—			—			—			38,723
Exercise of stock options and warrants	—			564		8,141			(130		)	—			—			8,575
Restricted stock awards	—			99		382			(285		)	—			—			196
Employee stock purchase plan	—			43		1,997			—			—			—			2,040
Director compensation plan	—			20		1,210			—			—			—			1,230
Balance at September 30, 2015	$	251,312		$	48,422	$	1,187,407		$	(3,964	)	$	901,652		$	(49,093	)	$	2,335,736
Balance at January 1, 2016	$	251,287		$	48,469	$	1,190,988		$	(3,973	)	$	928,211		$	(62,708	)	$	2,352,274
Net income	—			—		—			—			152,267			—			152,267
Other comprehensive income, net of tax	—			—		—			—			—			30,129			30,129
Cash dividends declared on common stock	—			—		—			—			(17,846		)	—			(17,846		)
Dividends on preferred stock	—			—		—			—			(10,884		)	—			(10,884		)
Stock-based compensation	—			—		6,778			—			—			—			6,778
Conversion of Series C preferred stock to common stock	(30		)	1		29			—			—			—			—
Common stock issued for:
New issuance, net of costs	—			3,000		149,823			—			—			—			152,823
Exercise of stock options and warrants	—			185		5,965			(377		)	—			—			5,773
Restricted stock awards	—			88		121			(172		)	—			—			37
Employee stock purchase plan	—			43		1,890			—			—			—			1,933
Director compensation plan	—			25		1,165			—			—			—			1,190
Balance at September 30, 2016	$	251,257		$	51,811	$	1,356,759		$	(4,522	)	$	1,051,748		$	(32,579	)	$	2,674,474

See accompanying notes to unaudited consolidated financial statements.

4

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Nine Months Ended
(In thousands)	September 30, 2016			September 30, 2015
Operating Activities:
Net income	$	152,267		$	121,238
Adjustments to reconcile net income to net cash used for operating activities
Provision for credit losses	26,734			23,883
Depreciation, amortization and accretion, net	38,798			28,017
Stock-based compensation expense	6,778			7,817
Excess tax benefits from stock-based compensation arrangements	(399		)	(660		)
Net amortization of premium on securities	3,728			2,576
Accretion of discount on loans	(23,416		)	(25,061		)
Mortgage servicing rights fair value change, net	(4,810		)	641
Originations and purchases of mortgage loans held-for-sale	(3,208,468		)	(3,094,901		)
Proceeds from sales of mortgage loans held-for-sale	3,111,318			3,182,623
Bank owned life insurance ("BOLI"), net of claims	(2,613		)	(1,683		)
Increase in trading securities, net	(644		)	(2,106		)
Net decrease (increase) in brokerage customer receivables	2,120			(4,072		)
Gains on mortgage loans sold	(74,446		)	(83,437		)
Gains on investment securities, net	(6,070		)	(402		)
Gains on early extinguishment of debt	(4,305		)	—
(Gains) losses on sales of premises and equipment, net	(89		)	512
Net losses (gains) on sales and fair value adjustments of other real estate owned	935			(585		)
Increase in accrued interest receivable and other assets, net	(131,504		)	(113,805		)
Increase (decrease) in accrued interest payable and other liabilities, net	31,082			(28,717		)
Net Cash (Used for) Provided by Operating Activities	(83,004		)	11,878
Investing Activities:
Proceeds from maturities of available-for-sale securities	1,128,428			397,832
Proceeds from maturities of held-to-maturity securities	502			—
Proceeds from sales and calls of available-for-sale securities	2,186,662			1,216,860
Proceeds from calls of held-to-maturity securities	423,866			—
Purchases of available-for-sale securities	(3,169,020		)	(1,584,282		)
Purchases of held-to-maturity securities	(472,803		)	—
(Purchase) redemption of Federal Home Loan Bank and Federal Reserve Bank stock, net	(28,049		)	1,274
Net cash paid in business combinations	(578,315		)	(15,428		)
Proceeds from sales of other real estate owned	29,223			34,936
Proceeds received from the FDIC related to reimbursements on covered assets	2,124			1,697
Net (increase) decrease in interest bearing deposits with banks	(204,085		)	438,072
Net increase in loans	(1,303,218		)	(1,286,736		)
Redemption of BOLI	659			2,701
Purchases of premises and equipment, net	(28,276		)	(29,375		)
Net Cash Used for Investing Activities	(2,012,302		)	(822,449		)
Financing Activities:
Increase in deposit accounts	2,408,216			970,090
(Decrease) increase in other borrowings, net	(24,545		)	38,775
Decrease in Federal Home Loan Bank advances, net	(440,257		)	(293,360		)
Proceeds from the issuance of common stock, net	152,823			—
Proceeds from the issuance of preferred stock, net	—			120,842
Redemption of junior subordinated debentures, net	(10,695		)	—
Excess tax benefits from stock-based compensation arrangements	399			660
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	9,796			14,413
Common stock repurchases	(549		)	(415		)
Dividends paid	(28,730		)	(20,486		)
Net Cash Provided by Financing Activities	2,066,458			830,519
Net (Decrease) Increase in Cash and Cash Equivalents	(28,848		)	19,948
Cash and Cash Equivalents at Beginning of Period	275,795			230,707
Cash and Cash Equivalents at End of Period	$	246,947		$	250,655

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 and nine-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.

The FASB has continued to issue various Updates to clarify and improve specific areas of ASU No. 2014-09. 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. 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. In May 2016, the FASB issued ASU No. 2016-11, "Revenue Recognition (Topic 605) and Derivative and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting," to remove certain areas of SEC Staff Guidance from those specific Topics. Additionally, in May 2016, the FASB issued ASU 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients," to clarify specific aspects of implementation, including the collectibility criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications and completed contracts at transition. Like ASU No. 2014-09, this guidance is effective for fiscal years beginning after December 15, 2017.

6

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.

In October 2016, the FASB issued ASU No. 2016-17, "Consolidation (Topic 810): Interest Held through Related Parties That Are under Common Control," to amend guidance from ASU No. 2015-02 regarding how a reporting entity treats indirect interests in a variable interest entity ("VIE") held through related parties under common control when determining whether the reporting entity is the primary beneficiary of such VIE. 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 retrospective approach. The Company does not expect this guidance to 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 September 30, 2015, the Company reclassified as a direct reduction to the related debt balance $7.8 million and $8.7 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

7

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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Allowance for Credit Losses

In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments," to replace the current incurred loss methodology for recognizing credit losses, which delays recognition until it is probable a loss has been incurred, with a methodology that reflects an estimate of all expected credit losses and considers additional reasonable and supportable forecasted information when determining credit loss estimates. This impacts the calculation of the allowance for credit losses for all financial assets measured under the amortized cost basis, including purchased credit impaired ("PCI") loans at the time of and subsequent to acquisition. Additionally, credit losses related to available-for-sale debt securities would be recorded through the allowance for credit losses and not as a direct adjustment to the amortized cost of the securities. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements as well as the impact on current systems and processes.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force)," to clarify the presentation of specific types of cash flow receipts and payments, including the payment of debt prepayment or debt extinguishment costs, contingent consideration cash payments paid subsequent to the acquisition date and proceeds from settlement of BOLI policies. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a retrospective approach, if practicable. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Income Taxes

In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory," to improve the accounting for intra-entity transfers of assets other than inventory. This ASU allows the recognition of current and deferred income taxes for such transfers prior to the subsequent sale of the transferred assets to an outside party. Initial recognition of current and deferred income taxes is currently prohibited for intra-entity transfers of assets other than inventory. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach through cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. 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 August 19, 2016, the Company, through its wholly-owned subsidiary Lake Forest Bank & Trust Company ("Lake Forest Bank"), acquired approximately $560.9 million in performing loans and related relationships from an affiliate of GE Capital Franchise Finance. The loans are to franchise operators (primarily quick service restaurant concepts) in the Midwest and in the Western portion of the United States.

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 $131.0 million, including approximately $67.4 million of loans, and assumed deposits with a fair value of approximately $100.2 million. Additionally, the Company recorded goodwill of $11.5 million on the acquisition.

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

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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 or other liability 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 or reduce the FDIC indemnification liability. The corresponding amortization is recorded as a component of non-interest income on the Consolidated Statements of Income.

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

	Three Months Ended						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Balance at beginning of period	$	(11,729	)	$	3,429		$	(6,100	)	$	11,846
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	21			1,039			752			3,548
Accretion (amortization)	4			(718		)	(189		)	(3,184		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,537		)	(5,236		)	(10,284		)	(13,546		)
Payments received from the FDIC	(1,704		)	(1,547		)	(2,124		)	(1,697		)
Balance at end of period	$	(17,945	)	$	(3,033	)	$	(17,945	)	$	(3,033	)

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.

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(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:

	September 30, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	30,017	$	19	$	—		$	30,036
U.S. Government agencies	93,561		163		(41		)	93,683
Municipal	106,033		3,395		(147		)	109,281
Corporate notes:
Financial issuers	65,215		299		(1,311		)	64,203
Other	1,000		—		—			1,000
Mortgage-backed: (1)
Mortgage-backed securities	1,257,070		7,958		(54		)	1,264,974
Collateralized mortgage obligations	35,935		304		(102		)	36,137
Equity securities	48,568		2,998		(784		)	50,782
Total available-for-sale securities	$	1,637,399	$	15,136	$	(2,439	)	$	1,650,096
Held-to-maturity securities
U.S. Government agencies	$	729,417	$	7,577	$	(2,879	)	$	734,115
Municipal	203,350		5,515		(314		)	208,551
Total held-to-maturity securities	$	932,767	$	13,092	$	(3,193	)	$	942,666

	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

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	288,185	$	101	$	(2,364	)	$	285,922
U.S. Government agencies	657,297		2,726		(15,000		)	645,023
Municipal	294,073		5,354		(2,085		)	297,342
Corporate notes:
Financial issuers	114,976		1,656		(1,216		)	115,416
Other	1,525		6		(2		)	1,529
Mortgage-backed: (1)
Mortgage-backed securities	778,240		4,974		(10,913		)	772,301
Collateralized mortgage obligations	42,724		343		(323		)	42,744
Equity securities	49,356		4,993		(345		)	54,004
Total available-for-sale securities	$	2,226,376	$	20,153	$	(32,248	)	$	2,214,281
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 nine months 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 September 30, 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	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agencies	35,173		(41		)	—		—			35,173		(41		)
Municipal	13,062		(45		)	7,766		(102		)	20,828		(147		)
Corporate notes:
Financial issuers	10,000		(1		)	34,650		(1,310		)	44,650		(1,311		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	1,017		(22		)	4,019		(32		)	5,036		(54		)
Collateralized mortgage obligations	1,255		(2		)	7,499		(100		)	8,754		(102		)
Equity securities	16,550		(481		)	8,787		(303		)	25,337		(784		)
Total available-for-sale securities	$	77,057	$	(592	)	$	62,721	$	(1,847	)	$	139,778	$	(2,439	)
Held-to-maturity securities
U.S. Government agencies	$	240,400	$	(2,879	)	$	—	$	—		$	240,400	$	(2,879	)
Municipal	11,925		(204		)	9,239		(110		)	21,164		(314		)
Total held-to-maturity securities	$	252,325	$	(3,083	)	$	9,239	$	(110	)	$	261,564	$	(3,193	)

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 September 30, 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.

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The following table provides information as to the amount of gross gains and gross losses realized and proceeds received through the sale or call of investment securities:

	Three months ended September 30,						Nine months ended September 30,
(Dollars in thousands)	2016			2015			2016			2015
Realized gains	$	3,429		$	87		$	7,466		$	654
Realized losses	(124		)	(185		)	(1,396		)	(252		)
Net realized gains (losses)	$	3,305		$	(98	)	$	6,070		$	402
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	3,305		$	(98	)	$	6,070		$	402
Proceeds from sales and calls of available-for-sale securities	$	1,114,666		$	82,827		$	2,186,662		$	1,216,860
Proceeds from calls of held-to-maturity securities	141,885			—			423,866			—

The amortized cost and fair value of securities as of September 30, 2016, December 31, 2015 and September 30, 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:

	September 30, 2016				December 31, 2015				September 30, 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	$	115,227	$	115,487	$	160,856	$	160,756	$	164,374	$	164,429
Due in one to five years	141,364		141,368		166,550		166,468		186,199		186,592
Due in five to ten years	28,696		31,319		228,652		225,699		343,468		342,271
Due after ten years	10,539		10,029		13,753		14,182		662,015		651,940
Mortgage-backed	1,293,005		1,301,111		1,110,101		1,092,597		820,964		815,045
Equity securities	48,568		50,782		51,380		56,686		49,356		54,004
Total available-for-sale securities	$	1,637,399	$	1,650,096	$	1,731,292	$	1,716,388	$	2,226,376	$	2,214,281
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	25,927		26,023		19,208		19,156		—		—
Due in five to ten years	64,835		65,842		96,454		96,091		—		—
Due after ten years	842,005		850,801		769,164		762,864		—		—
Total held-to-maturity securities	$	932,767	$	942,666	$	884,826	$	878,111	$	—	$	—

Securities having a fair value of $1.4 billion at September 30, 2016 as well as securities having a fair value of $1.2 billion and $1.3 billion at December 31, 2015 and September 30, 2015, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank ("FHLB") advances, securities sold under repurchase agreements and derivatives. At September 30, 2016, there were no securities of a single issuer, other than U.S. Government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

14

(6) Loans

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

	September 30,			December 31,			September 30,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	5,951,544		$	4,713,909		$	4,400,185
Commercial real estate	5,908,684			5,529,289			5,307,566
Home equity	742,868			784,675			797,465
Residential real estate	663,598			607,451			571,743
Premium finance receivables—commercial	2,430,233			2,374,921			2,407,075
Premium finance receivables—life insurance	3,283,359			2,961,496			2,700,275
Consumer and other	120,975			146,376			131,902
Total loans, net of unearned income, excluding covered loans	$	19,101,261		$	17,118,117		$	16,316,211
Covered loans	95,940			148,673			168,609
Total loans	$	19,197,201		$	17,266,790		$	16,484,820
Mix:
Commercial	31		%	27		%	27		%
Commercial real estate	31			32			32
Home equity	4			5			5
Residential real estate	3			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	100		%	99		%	99		%
Covered loans	—			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 $64.4 million at September 30, 2016, $56.7 million at December 31, 2015 and $53.4 million at September 30, 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 $873,000 at September 30, 2016, $(9.2) million at December 31, 2015 and $(18.8) million at September 30, 2015. The net credit balance at December 31, 2015 and September 30, 2015, is primarily the result of purchase accounting adjustments related to acquisitions in 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.

15

Acquired Loan Information at Acquisition—PCI Loans

As part of the Company's previous acquisitions, the Company 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:

	September 30, 2016				December 31, 2015
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Bank acquisitions	$	278,862	$	233,340	$	326,470	$	271,260
Life insurance premium finance loans acquisition	266,618		262,887		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 Bank
Contractually required payments including interest	$	20,091
Less: Nonaccretable difference	4,009
Cash flows expected to be collected (1)	$	16,082
Less: Accretable yield	1,082
Fair value of PCI loans acquired	$	15,000

(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 September 30, 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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Accretable yield, beginning balance	$	55,630		$	63,643		$	63,902		$	79,102
Acquisitions	—			10,407			1,082			11,305
Accretable yield amortized to interest income	(6,449		)	(5,939		)	(17,105		)	(18,359		)
Accretable yield amortized to indemnification asset/liability (1)	(1,744		)	(3,280		)	(5,539		)	(10,945		)
Reclassification from non-accretable difference (2)	5,370			2,298			12,099			5,154
Increases (decreases) in interest cash flows due to payments and changes in interest rates	170			(610		)	(1,462		)	262
Accretable yield, ending balance (3)	$	52,977		$	66,519		$	52,977		$	66,519

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

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

(3) As of September 30, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $1.5 million. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

16

Accretion to interest income accounted for under ASC 310-30 totaled $6.4 million and $5.9 million in the third quarter of 2016 and 2015, respectively. For the nine months ended Septemebr 30, 2016 and 2015, the Company recorded accretion to interest income of $17.1 million and $18.4 million, 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.

(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 September 30, 2016, December 31, 2015 and September 30, 2015:

As of September 30, 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	$	15,809	$	—	$	7,324	$	8,987	$	3,573,396	$	3,605,516
Franchise	—		—		458		1,626		872,661		874,745
Mortgage warehouse lines of credit	—		—		—		—		309,632		309,632
Asset-based lending	234		—		3,772		3,741		837,972		845,719
Leases	375		—		239		—		299,339		299,953
PCI - commercial (1)	—		1,783		—		1,036		13,160		15,979
Total commercial	16,418		1,783		11,793		15,390		5,906,160		5,951,544
Commercial real estate:
Construction	400		—		—		3,775		447,302		451,477
Land	1,208		—		787		300		105,406		107,701
Office	3,609		—		6,457		8,062		865,954		884,082
Industrial	9,967		—		940		2,961		753,636		767,504
Retail	909		—		1,340		8,723		884,369		895,341
Multi-family	90		—		3,051		2,169		789,645		794,955
Mixed use and other	6,442		—		2,157		5,184		1,837,724		1,851,507
PCI - commercial real estate (1)	—		21,433		1,509		4,066		129,109		156,117
Total commercial real estate	22,625		21,433		16,241		35,240		5,813,145		5,908,684
Home equity	9,309		—		1,728		3,842		727,989		742,868
Residential real estate, including PCI	12,205		1,496		2,232		1,088		646,577		663,598
Premium finance receivables
Commercial insurance loans	14,214		7,754		6,968		10,291		2,391,006		2,430,233
Life insurance loans	—		—		9,960		3,717		3,006,795		3,020,472
PCI - life insurance loans (1)	—		—		—		—		262,887		262,887
Consumer and other, including PCI	543		124		204		871		119,233		120,975
Total loans, net of unearned income, excluding covered loans	$	75,314	$	32,590	$	49,126	$	70,439	$	18,873,792	$	19,101,261
Covered loans	2,331		4,806		1,545		2,456		84,802		95,940
Total loans, net of unearned income	$	77,645	$	37,396	$	50,671	$	72,895	$	18,958,594	$	19,197,201

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

17

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

As of September 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial, industrial and other	$	12,006	$	—	$	2,775	$	9,709	$	2,985,985	$	3,010,475
Franchise	—		—		80		376		221,545		222,001
Mortgage warehouse lines of credit	—		—		—		—		136,614		136,614
Asset-based lending	12		—		1,313		247		800,798		802,370
Leases	—		—		—		89		205,697		205,786
PCI - commercial (1)	—		217		—		39		22,683		22,939
Total commercial	12,018		217		4,168		10,460		4,373,322		4,400,185
Commercial real estate:
Construction	31		—		—		3,535		343,668		347,234
Land	1,756		—		—		2,207		75,113		79,076
Office	4,045		—		10,861		2,362		773,043		790,311
Industrial	11,637		—		786		897		622,804		636,124
Retail	2,022		—		1,536		821		781,463		785,842
Multi-family	1,525		—		512		744		684,878		687,659
Mixed use and other	7,601		—		2,340		12,871		1,797,516		1,820,328
PCI - commercial real estate (1)	—		13,547		299		583		146,563		160,992
Total commercial real estate	28,617		13,547		16,334		24,020		5,225,048		5,307,566
Home equity	8,365		—		811		4,124		784,165		797,465
Residential real estate, including PCI	14,557		424		1,340		1,606		553,816		571,743
Premium finance receivables
Commercial insurance loans	13,751		8,231		6,664		13,659		2,364,770		2,407,075
Life insurance loans	—		—		9,656		2,627		2,314,406		2,326,689
PCI - life insurance loans (1)	—		—		—		—		373,586		373,586
Consumer and other, including PCI	297		140		56		935		130,474		131,902
Total loans, net of unearned income, excluding covered loans	$	77,605	$	22,559	$	39,029	$	57,431	$	16,119,587	$	16,316,211
Covered loans	6,540		7,626		1,392		802		152,249		168,609
Total loans, net of unearned income	$	84,145	$	30,185	$	40,421	$	58,233	$	16,271,836	$	16,484,820

(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.

18

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.

19

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 September 30, 2016, December 31, 2015 and September 30, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,589,707	$	3,245,818	$	2,998,469	$	15,809	$	12,710	$	12,006	$	3,605,516	$	3,258,528	$	3,010,475
Franchise	874,745		245,228		222,001		—		—		—		874,745		245,228		222,001
Mortgage warehouse lines of credit	309,632		222,806		136,614		—		—		—		309,632		222,806		136,614
Asset-based lending	845,485		742,676		802,358		234		8		12		845,719		742,684		802,370
Leases	299,578		225,539		205,786		375		535		—		299,953		226,074		205,786
PCI - commercial (1)	15,979		18,589		22,939		—		—		—		15,979		18,589		22,939
Total commercial	5,935,126		4,700,656		4,388,167		16,418		13,253		12,018		5,951,544		4,713,909		4,400,185
Commercial real estate
Construction	451,077		358,354		347,203		400		306		31		451,477		358,660		347,234
Land	106,493		76,666		77,320		1,208		1,751		1,756		107,701		78,417		79,076
Office	880,473		858,382		786,266		3,609		4,619		4,045		884,082		863,001		790,311
Industrial	757,537		718,084		624,487		9,967		9,564		11,637		767,504		727,648		636,124
Retail	894,432		866,639		783,820		909		1,760		2,022		895,341		868,399		785,842
Multi-family	794,865		740,395		686,134		90		1,954		1,525		794,955		742,349		687,659
Mixed use and other	1,845,065		1,726,125		1,812,727		6,442		6,691		7,601		1,851,507		1,732,816		1,820,328
PCI - commercial real estate(1)	156,117		157,999		160,992		—		—		—		156,117		157,999		160,992
Total commercial real estate	5,886,059		5,502,644		5,278,949		22,625		26,645		28,617		5,908,684		5,529,289		5,307,566
Home equity	733,559		777,827		789,100		9,309		6,848		8,365		742,868		784,675		797,465
Residential real estate, including PCI	651,393		595,408		557,186		12,205		12,043		14,557		663,598		607,451		571,743
Premium finance receivables
Commercial insurance loans	2,408,265		2,350,066		2,385,093		21,968		24,855		21,982		2,430,233		2,374,921		2,407,075
Life insurance loans	3,020,472		2,593,204		2,326,689		—		—		—		3,020,472		2,593,204		2,326,689
PCI - life insurance loans (1)	262,887		368,292		373,586		—		—		—		262,887		368,292		373,586
Consumer and other, including PCI	120,372		145,963		131,465		603		413		437		120,975		146,376		131,902
Total loans, net of unearned income, excluding covered loans	$	19,018,133	$	17,034,060	$	16,230,235	$	83,128	$	84,057	$	85,976	$	19,101,261	$	17,118,117	$	16,316,211

(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.

20

A summary of activity in the allowance for credit losses by loan portfolio (excluding covered loans) for the three and nine months endedSeptember 30, 2016 and 2015 is as follows:

Three months ended September 30, 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	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Other adjustments	(35		)	(57		)	—			(10		)	(10		)	—			(112		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(79		)	—			—			—			—			(579		)
Charge-offs	(3,469		)	(382		)	(574		)	(134		)	(1,959		)	(389		)	(6,907		)
Recoveries	176			364			65			61			456			72			1,194
Provision for credit losses	5,212			1,678			810			781			974			286			9,741
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341
Individually evaluated for impairment	$	2,554		$	2,491		$	964		$	1,166		$	—		$	192		$	7,367
Collectively evaluated for impairment	40,252			46,983			10,720			4,867			7,275			1,053			111,150
Loans acquired with deteriorated credit quality	732			22			—			70			—			—			824
Loans at period end
Individually evaluated for impairment	$	19,133		$	45,290		$	9,309		$	17,040		$	—		$	602		$	91,374
Collectively evaluated for impairment	5,916,432			5,707,277			733,559			642,633			5,450,705			119,162			18,569,768
Loans acquired with deteriorated credit quality	15,979			156,117			—			3,925			262,887			1,211			440,119

Three months ended September 30, 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	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Other adjustments	(12		)	(85		)	—			(6		)	(50		)	—			(153		)
Reclassification from allowance for unfunded lending-related commitments	—			(42		)	—			—			—			—			(42		)
Charge-offs	(964		)	(1,948		)	(1,116		)	(1,138		)	(1,595		)	(116		)	(6,877		)
Recoveries	462			213			42			136			294			52			1,199
Provision for credit losses	1,604			3,725			1,009			575			1,511			241			8,665
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922
Individually evaluated for impairment	$	1,881		$	5,832		$	239		$	544		$	—		$	30		$	8,526
Collectively evaluated for impairment	31,943			38,361			11,984			4,042			7,081			1,024			94,435
Loans acquired with deteriorated credit quality	166			794			—			—			—			1			961
Loans at period end
Individually evaluated for impairment	$	18,211		$	68,947		$	8,365		$	18,267		$	—		$	430		$	114,220
Collectively evaluated for impairment	4,359,035			5,077,627			789,100			549,794			4,733,764			131,472			15,640,792
Loans acquired with deteriorated credit quality	22,939			160,992			—			3,682			373,586			—			561,199

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Nine months ended September 30, 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	(103		)	(203		)	—			(49		)	31			—			(324		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(200		)	—			—			—			—			(700		)
Charge-offs	(4,861		)	(1,555		)	(3,672		)	(1,320		)	(6,350		)	(720		)	(18,478		)
Recoveries	926			1,029			184			204			1,876			143			4,362
Provision for credit losses	11,441			5,519			3,160			2,534			4,485			294			27,433
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341

Nine months ended September 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(42		)	(346		)	—			(14		)	(92		)	—			(494		)
Reclassification from allowance for unfunded lending-related commitments	—			(151		)	—			—			—			—			(151		)
Charge-offs	(2,884		)	(3,809		)	(3,547		)	(2,692		)	(4,384		)	(342		)	(17,658		)
Recoveries	1,117			2,349			129			228			1,081			139			5,043
Provision for credit losses	4,100			10,485			3,141			2,846			3,963			16			24,551
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922

A summary of activity in the allowance for covered loan losses for the three and nine months endedSeptember 30, 2016 and 2015 is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(Dollars in thousands)	2016			2015			2016			2015
Balance at beginning of period	$	2,412		$	2,215		$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(847		)	(1,716		)	(3,495		)	(3,339		)
Benefit attributable to FDIC loss share agreements	677			1,373			2,796			2,671
Net provision for covered loan losses	(170		)	(343		)	(699		)	(668		)
Increase/decrease in FDIC indemnification liability/asset	(677		)	(1,373		)	(2,796		)	(2,671		)
Loans charged-off	(918		)	(287		)	(1,291		)	(664		)
Recoveries of loans charged-off	775			2,706			3,182			4,790
Net (charge-offs) recoveries	(143		)	2,419			1,891			4,126
Balance at end of period	$	1,422		$	2,918		$	1,422		$	2,918

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

22

the FDIC loss share asset or increase any FDIC loss share liability. Additions to expected losses will require an increase to the allowance for covered 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:

	September 30,		December 31,		September 30,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	39,022	$	49,961	$	51,113
Impaired loans with no allowance for loan loss required	51,518		51,294		61,914
Total impaired loans (2)	$	90,540	$	101,255	$	113,027
Allowance for loan losses related to impaired loans	$	6,836	$	6,380	$	8,483
TDRs	$	44,276	$	51,853	$	59,320

(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 Nine Months Ended
	As of September 30, 2016						September 30, 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	$	5,426	$	5,434	$	1,887	$	5,487	$	212
Asset-based lending	234		235		44		235		7
Leases	375		375		116		388		14
Commercial real estate
Construction	—		—		—		—		—
Land	2,620		2,620		44		2,670		80
Office	1,697		2,361		182		1,722		79
Industrial	6,855		7,338		1,388		7,069		284
Retail	6,605		6,623		240		6,668		160
Multi-family	1,266		1,266		8		1,134		29
Mixed use and other	5,437		5,511		605		5,452		198
Home equity	2,373		2,457		964		2,404		63
Residential real estate	5,942		6,428		1,166		5,807		190
Consumer and other	192		192		192		194		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,669	$	16,261	$	—	$	14,745	$	717
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	1,995		1,995		—		2,273		94
Land	3,864		8,088		—		4,316		408
Office	4,980		6,243		—		4,978		260
Industrial	3,508		3,827		—		3,574		200
Retail	805		913		—		936		36
Multi-family	89		174		—		109		5
Mixed use and other	5,164		5,712		—		5,300		236
Home equity	6,936		9,108		—		7,736		320
Residential real estate	11,098		13,077		—		11,125		445
Consumer and other	410		520		—		428		21
Total impaired loans, net of unearned income	$	90,540	$	106,758	$	6,836	$	94,750	$	4,066

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							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	—		—		—		—		—
Leases	—		—		—		—		—
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
Leases	—		—		—		—		—
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 Nine Months Ended
	As of September 30, 2015						September 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,580	$	9,118	$	1,865	$	8,906	$	381
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	3,559		7,309		31		3,713		362
Office	6,765		7,724		2,162		7,113		263
Industrial	10,049		10,542		1,550		10,662		421
Retail	8,899		9,596		381		8,906		306
Multi-family	1,199		1,622		203		1,210		60
Mixed use and other	7,162		7,345		1,501		7,250		224
Home equity	547		762		239		672		25
Residential real estate	4,225		4,326		521		4,280		130
Consumer and other	128		128		30		139		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	9,142	$	11,997	$	—	$	9,716	$	539
Asset-based lending	12		1,573		—		4		66
Leases	—		—		—		—		—
Commercial real estate
Construction	2,054		2,055		—		2,034		73
Land	4,114		4,874		—		4,232		130
Office	4,171		5,120		—		4,243		194
Industrial	2,255		2,448		—		2,304		141
Retail	3,140		3,302		—		3,305		104
Multi-family	1,330		1,635		—		1,522		50
Mixed use and other	13,788		16,576		—		14,668		563
Home equity	7,818		8,406		—		7,065		229
Residential real estate	13,788		15,932		—		14,387		449
Consumer and other	302		398		—		311		15
Total impaired loans, net of unearned income	$	113,027	$	132,788	$	8,483	$	116,642	$	4,731

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TDRs

At September 30, 2016, the Company had $44.3 million in loans modified in TDRs. The $44.3 million in TDRs represents 89 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 September 30, 2016 and approximately $2.8 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 both the three months ended September 30, 2016 and 2015, the Company recorded $98,000 interest income representing this decrease in impairment. For the nine months endedSeptember 30, 2016 and 2015, the Company recorded $323,000 and $385,000, respectively, in interest income.

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 September 30, 2016, the Company had $11.7 million of foreclosed residential real estate properties included within OREO.

25

The tables below present a summary of the post-modification balance of loans restructured during the three and nine months endedSeptember 30, 2016 and 2015, respectively, which represent TDRs:

Three months ended September 30, 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	$	28	1	$	28	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	43		1	43		1	43		—	—		—	—
Total loans	2	$	71	2	$	71	1	$	43	—	$	—	—	$	—

Three months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	222		1	222		1	222		—	—		—	—
Total loans	1	$	222	1	$	222	1	$	222	—	$	—	—	$	—

(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 September 30, 2016, two loans totaling $71,000 were determined to be TDRs, compared to one loan totaling $222,000 in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately 22 months during the quarter ended September 30, 2016 compared to 214 months for the quarter ended September 30, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 150 basis points and 338 basis points during the three months ending September 30, 2016 and 2015, respectively. Additionally, no principal balances were forgiven in the third quarter of 2016 or 2015.

Nine months ended September 30, 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	3	$	345	3	$	345	—	$	—	—	$	—	1	$	275
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	3	583		2	423		3	583		1	380		—	—
Total loans	15	$	9,449	14	$	9,289	6	$	7,779	1	$	380	1	$	275

(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.

26

Nine months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office							—	—					—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	9	1,664		9	1,664		5	674		1	50		—	—
Total loans	10	$	1,833	10	$	1,833	5	$	674	2	$	219	—	$	—

(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 nine months ended September 30, 2016, 15 loans totaling $9.4 million were determined to be TDRs, compared to ten loans totaling $1.8 million in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately six months during the nine months ended September 30, 2016 compared to 49 months for the nine months ended September 30, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 30 basis points and 358 basis points for the year-to-date periods September 30, 2016 and 2015, respectively. Interest-only payment terms were approximately six months during the nine months ending September 30, 2016 compared to 28 months during the same period of 2015. Additionally, $300,000 of principal balances were forgiven in the first nine months of 2016 compared to no balances forgiven during the same period of 2015.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended September 30, 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 September 30, 2016			Three Months Ended September 30, 2016			Nine Months Ended September 30, 2016
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	3	$	345	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		1	450
Industrial	6	7,921		3	725		3	725
Mixed use and other	4	351		1	16		3	217
Residential real estate and other	3	583		—	—		—	—
Total loans	17	$	9,650	5	$	1,191	7	$	1,392

(Dollars in thousands)	As of September 30, 2015			Three Months Ended September 30, 2015			Nine Months Ended September 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Office	1	720		—	—		—	—
Industrial	2	854		1	685		1	685
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	11	2,613		2	131		3	345
Total loans	15	$	5,648	3	$	816	4	$	1,030

(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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(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		September 30, 2016
Community banking	$	401,612	$	11,470	$	—	$	1,517	$	414,599
Specialty finance	38,035		—		—		1,190		39,225
Wealth management	32,114		—		—		—		32,114
Total	$	471,761	$	11,470	$	—	$	2,707	$	485,938

The community banking segment's goodwill increased $13.0 million in the first nine months of 2016 primarily as a result of the acquisition of Generations. The specialty finance segment's goodwill increased $1.2 million in the first nine months of 2016 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2016, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not than an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2016. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of September 30, 2016, the Company identified no such indicators of goodwill impairment.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of September 30, 2016 is as follows:

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	34,998		$	34,841		$	34,840
Accumulated amortization	(20,598		)	(17,382		)	(16,195		)
Net carrying amount	$	14,400		$	17,459		$	18,645
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,129		)	(1,052		)	(1,027		)
Net carrying amount	$	671		$	748		$	773
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,275		)	(1,938		)	(1,825		)
Net carrying amount	$	5,665		$	6,002		$	6,115
Total other intangible assets, net	$	20,736		$	24,209		$	25,533

Estimated amortization
Actual in nine months ended September 30, 2016	$	3,631
Estimated remaining in 2016	1,057
Estimated—2017	3,902
Estimated—2018	3,395
Estimated—2019	2,875
Estimated—2020	2,334

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

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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 $3.6 million and $3.3 million for the nine months ended September 30, 2016 and 2015, respectively.

(9) Deposits

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

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Balance:
Non-interest bearing	$	5,711,042		$	4,836,420		$	4,705,994
NOW and interest bearing demand deposits	2,552,611			2,390,217			2,231,258
Wealth management deposits	2,283,233			1,643,653			1,469,920
Money market	4,421,631			4,041,300			4,001,518
Savings	1,977,661			1,723,367			1,684,007
Time certificates of deposit	4,201,477			4,004,677			4,135,772
Total deposits	$	21,147,655		$	18,639,634		$	18,228,469
Mix:
Non-interest bearing	27		%	26		%	26		%
NOW and interest bearing demand deposits	12			13			12
Wealth management deposits	11			9			8
Money market	21			22			22
Savings	9			9			9
Time certificates of deposit	20			21			23
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) FHLB Advances, Other Borrowings and Subordinated Notes

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

(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015
FHLB advances	$	419,632	$	853,431	$	443,955
Other borrowings:
Notes payable	56,191		67,429		71,250
Short-term borrowings	33,173		63,887		57,590
Other	18,360		18,965		18,332
Secured borrowings	133,642		115,504		112,633
Total other borrowings	241,366		265,785		259,805
Subordinated notes	138,943		138,861		138,834
Total FHLB advances, other borrowings and subordinated notes	$	799,941	$	1,258,077	$	842,594

FHLB Advances

FHLB 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

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

Notes Payable

At September 30, 2016, notes payable represented a $56.2 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 September 30, 2016, the Company had a balance of $56.2 million compared to $67.4 million at December 31, 2015 and $71.3 million at September 30, 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 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. Beginning September 30, 2015, the Company was required to make straight-line quarterly amortizing payments on the Term Facility. At September 30, 2016, December 31, 2015 and September 30, 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 September 30, 2016, 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 $33.2 million at September 30, 2016 compared to $63.9 million at December 31, 2015 and $57.6 million at September 30, 2015. At September 30, 2016, December 31, 2015 and September 30, 2015, securities sold under repurchase agreements represent $33.2 million, $58.9 million and $57.6 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of September 30, 2016, the Company had pledged securities related to its customer balances in sweep accounts of $44.1 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 September 30, 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
Corporate notes:
Financial issuers	$	3,945
Mortgage-backed securities	19,853
Held-to-maturity securities pledged
U.S. Government agencies	20,296
Total collateral pledged	$	44,094
Excess collateral	10,921
Securities sold under repurchase agreements	$	33,173

Other Borrowings

Other borrowings at September 30, 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 September 30, 2016, the Fixed-Rate Promissory Note had a balance of $17.8 million compared to a balance of $18.2 million and $18.3 million at December 31, 2015 and September 30, 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 September 30, 2016 and December 31, 2015, the non-recourse notes related to certain capital leases totaled $519,000 and $732,000, respectively.

Secured Borrowings

Secured borrowings at September 30, 2016 primarily represents transactions to sell an undivided co-ownership interest in all receivables owed to the Company's subsidiary, FIFC Canada. In December 2014, FIFC Canada sold such interest 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 September 30, 2016, the translated balance of the secured borrowing totaled $121.9 million compared to $115.5 million at December 31, 2015 and $112.6 million at September 30, 2015. Additionally, the interest rate under the Receivables Purchase Agreement at September 30, 2016 was 1.6121%.

Subordinated Notes

At September 30, 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 September 30, 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 September 30, 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

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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 September 30, 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 9/30/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.93	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.64	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.44	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.80	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.29	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.48	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.84	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.60	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.47	%	06/2007	09/2037	06/2012
Total					$	253,566		3.02	%

The junior subordinated debentures totaled $253.6 million at September 30, 2016 compared to $268.6 million at December 31, 2015 and September 30, 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 September 30, 2016, the weighted average contractual interest rate on the junior subordinated debentures was 3.02%. The Company entered into interest rate swaps and caps to hedge the variable cash flows on certain junior subordinated debentures. The hedge-adjusted rate on the junior subordinated debentures as of September 30, 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 Bank ("FRB") 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,

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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. 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)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	150,159		$	132,542		$	17,617		13	%
Specialty Finance	25,543			24,657			886			4
Wealth Management	4,835			4,368			467			11
Total Operating Segments	180,537			161,567			18,970			12
Intersegment Eliminations	4,099			3,973			126			3
Consolidated net interest income	$	184,636		$	165,540		$	19,096		12	%
Non-interest income:
Community Banking	$	62,730		$	45,574		$	17,156		38	%
Specialty Finance	12,226			8,264			3,962			48
Wealth Management	20,045			18,362			1,683			9
Total Operating Segments	95,001			72,200			22,801			32
Intersegment Eliminations	(8,397		)	(7,247		)	(1,150		)	(16	)
Consolidated non-interest income	$	86,604		$	64,953		$	21,651		33	%
Net revenue:
Community Banking	$	212,889		$	178,116		$	34,773		20	%
Specialty Finance	37,769			32,921			4,848			15
Wealth Management	24,880			22,730			2,150			9
Total Operating Segments	275,538			233,767			41,771			18
Intersegment Eliminations	(4,298		)	(3,274		)	(1,024		)	(31	)
Consolidated net revenue	$	271,240		$	230,493		$	40,747		18	%
Segment profit:
Community Banking	$	37,527		$	22,723		$	14,804		65	%
Specialty Finance	12,767			12,545			222			2
Wealth Management	2,821			3,087			(266		)	(9	)
Consolidated net income	$	53,115		$	38,355		$	14,760		38	%
Segment assets:
Community Banking	$	21,019,002		$	18,497,364		$	2,521,638		14	%
Specialty Finance	3,702,241			2,987,021			715,220			24
Wealth Management	600,516			550,831			49,685			9
Consolidated total assets	$	25,321,759		$	22,035,216		$	3,286,543		15	%

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	Nine months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	434,108		$	382,187		$	51,921		14	%
Specialty Finance	71,075			67,041			4,034			6
Wealth Management	13,701			12,837			864			7
Total Operating Segments	518,884			462,065			56,819			12
Intersegment Eliminations	12,531			12,258			273			2
Consolidated net interest income	$	531,415		$	474,323		$	57,092		12	%
Non-interest income:
Community Banking	$	169,210		$	146,739		$	22,471		15	%
Specialty Finance	37,111			25,270			11,841			47
Wealth Management	58,660			56,103			2,557			5
Total Operating Segments	264,981			228,112			36,869			16
Intersegment Eliminations	(24,826		)	(21,605		)	(3,221		)	(15	)
Consolidated non-interest income	$	240,155		$	206,507		$	33,648		16	%
Net revenue:
Community Banking	$	603,318		$	528,926		$	74,392		14	%
Specialty Finance	108,186			92,311			15,875			17
Wealth Management	72,361			68,940			3,421			5
Total Operating Segments	783,865			690,177			93,688			14
Intersegment Eliminations	(12,295		)	(9,347		)	(2,948		)	(32	)
Consolidated net revenue	$	771,570		$	680,830		$	90,740		13	%
Segment profit:
Community Banking	$	106,860		$	76,821		$	30,039		39	%
Specialty Finance	36,283			34,875			1,408			4
Wealth Management	9,124			9,542			(418		)	(4	)
Consolidated net income	$	152,267		$	121,238		$	31,029		26	%

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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 September 30, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	September 30, 2016
March 21, 2013	March 21, 2017	$	100,000	Non-Hedge Designated	$	1
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	—
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	9
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	8
		$	265,000		$	18

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

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The table below presents the fair value of the Company’s derivative financial instruments as of September 30, 2016, December 31, 2015 and September 30, 2015:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	549	$	242	$	216	$	7	$	846	$	1,329
Interest rate derivatives designated as Fair Value Hedges	177		27		5		907		143		291
Total derivatives designated as hedging instruments under ASC 815	$	726	$	269	$	221	$	914	$	989	$	1,620
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	79,477	$	42,510	$	56,717	$	79,199	$	41,469	$	55,809
Interest rate lock commitments	8,352		7,401		11,836		4,060		171		—
Forward commitments to sell mortgage loans	—		745		—		3,505		2,275		7,713
Foreign exchange contracts	273		373		260		270		115		56
Total derivatives not designated as hedging instruments under ASC 815	$	88,102	$	51,029	$	68,813	$	87,034	$	44,030	$	63,578
Total Derivatives	$	88,828	$	51,298	$	69,034	$	87,948	$	45,019	$	65,198

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.

As of September 30, 2016, the Company had two interest rate swap derivatives designated as cash flow hedges of variable rate deposits. The interest rate swap derivatives had notional amounts of $250.0 million and $275.0 million, and mature in July 2019 and August 2019, respectively. Additionally, as of September 30, 2016, the Company had one interest rate swap 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 swap derivative associated with the Company's junior subordinated debentures had a notional amount of $25.0 million, and matures in October 2016. The cap derivatives associated with the Company's junior subordinated debentures had notional amounts of $50.0 million and $40.0 million, respectively, both maturing in September 2017. 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 nine months ended September 30, 2016 or September 30, 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 September 30, 2016:

	September 30, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
October 2016	$	25,000	$	(7	)
July 2019	250,000		106
August 2019	275,000		426
Total Interest Rate Swaps	$	550,000	$	525
Interest Rate Caps:
September 2017	$	50,000	$	9
September 2017	40,000		8
Total Interest Rate Caps	$	90,000	$	17
Total Cash Flow Hedges	$	640,000	$	542

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

	Three months ended						Nine months ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Unrealized loss at beginning of period	$	(3,574	)	$	(4,408	)	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	1,065			571			2,620			1,460
Amount of gain (loss) recognized in other comprehensive income	1,708			(503		)	108			(1,738		)
Unrealized loss at end of period	$	(801	)	$	(4,340	)	$	(801	)	$	(4,340	)

As of September 30, 2016, the Company estimates that during the next twelve months, $1.7 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 September 30, 2016, the Company has seven interest rate swaps with an aggregate notional amount of $71.3 million that were designated as fair value hedges associated with fixed rate commercial and industrial and commercial franchise loans as well as life insurance premium finance receivables.

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $35,000 in other income related to hedge ineffectiveness for the three months ended September 30, 2016 and a $21,000 net loss for the three months ended September 30, 2015. On a year-to-date basis, the Company recognized a net gain of $13,000 and a net loss of $23,000 for the nine months ending September 30, 2016 and 2015, respectively.

On June 1, 2013, the Company de-designated a $96.5 million notional amount 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.

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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 September 30, 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
		September 30, 2016		September 30, 2015			September 30, 2016			September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	269	$	(323	)	$	(234	)	$	302	$	35	$	(21	)

(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 Nine Months Ended						Amount of (Loss)/Gain Recognized in Income on Hedged Item Nine Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Nine Months Ended
		September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	(614	)	$	(338	)	$	627	$	315	$	13	$	(23	)

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as accounting hedges are used to manage the Company’s economic 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 September 30, 2016, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $4.1 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 October 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 accounting hedge relationships. At September 30, 2016, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $1.3 billion and interest rate lock commitments with an aggregate notional amount of approximately $683.6 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

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derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. As of September 30, 2016 the Company held foreign currency derivatives with an aggregate notional amount of approximately $63.6 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 accounting 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 September 30, 2016, December 31, 2015 or September 30, 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 September 30, 2016, the Company held two interest rate cap derivative contracts, which are not designated in accounting hedge relationships, with an aggregate notional value of $175.0 million.

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

(Dollars in thousands)		Three Months Ended						Nine Months Ended
Derivative	Location in income statement	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	(395	)	$	(275	)	$	(751	)	$	(592	)
Mortgage banking derivatives	Mortgage banking revenue	(2,215		)	(4,062		)	(3,058		)	(1,669		)
Covered call options	Fees from covered call options	3,633			2,810			9,994			11,735
Foreign exchange contracts	Trading (losses) gains, net	(26		)	113			(262		)	133

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 September 30, 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 $80.6 million. If at September 30, 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)	September 30, 2016			December 31, 2015			September 30, 2015			September 30, 2016			December 31, 2015			September 30, 2015
Gross Amounts Recognized	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(958		)	(753		)	(614		)	(958		)	(753		)	(614		)
Collateral Posted (1)	—			—			—			(79,155		)	(41,705		)	(54,410		)
Net Credit Exposure	$	79,245		$	42,026		$	56,324		$	—		$	—		$	2,405

(1) As of September 30, 2016 and December 31, 2015, the Company posted collateral of$86.0 million and $45.5 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 September 30, 2016, the Company classified $67.2 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 third 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 September 30, 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 September 30, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at December 31, 2015 and $24.5 million at September 30, 2015. In the prior periods, the securities in Level 3 were primarily comprised of auction rate preferred securities. The Company’s valuation methodology at that time included 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. In the third quarter of 2016, the Company exchanged these auction rate securities for the underlying preferred securities, resulting in a $2.4 million gain on the nonmonetary sale. The Company classified the preferred securities received as Level 2 in the fair value hierarchy at the time of the transaction due to observable inputs other than quoted prices existing for the preferred securities.

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 ("MSRs")—Fair value for MSRs 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 September 30, 2016, the Company classified $13.9 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at September 30, 2016 was 5.52% with discount rates applied ranging from 3%-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 2%-85% or a weighted average prepayment speed of 14.73% used as an input to value the MSRs at September 30, 2016. Prepayment speeds are inversely related to the fair value of MSRs 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:

	September 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	30,036	$	—	$	30,036	$	—
U.S. Government agencies	93,683		—		93,683		—
Municipal	109,281		—		42,073		67,208
Corporate notes	65,203		—		65,203		—
Mortgage-backed	1,301,111		—		1,301,111		—
Equity securities	50,782		—		50,782		—
Trading account securities	1,092		—		1,092		—
Mortgage loans held-for-sale	559,634		—		559,634		—
MSRs	13,901		—		—		13,901
Nonqualified deferred compensation assets	9,218		—		9,218		—
Derivative assets	88,828		—		88,828		—
Total	$	2,322,769	$	—	$	2,241,660	$	81,109
Derivative liabilities	$	87,948	$	—	$	87,948	$	—

	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		—
MSRs	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	$	—

	September 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	285,922	$	—	$	285,922	$	—
U.S. Government agencies	645,023		—		645,023		—
Municipal	297,342		—		228,941		68,401
Corporate notes	116,945		—		116,945		—
Mortgage-backed	815,045		—		815,045		—
Equity securities	54,004		—		29,488		24,516
Trading account securities	3,312		—		3,312		—
Mortgage loans held-for-sale	347,005		—		347,005		—
MSRs	7,875		—		—		7,875
Nonqualified deferred compensation assets	8,342		—		8,342		—
Derivative assets	69,034		—		69,034		—
Total	$	2,649,849	$	—	$	2,549,057	$	100,792
Derivative liabilities	$	65,198	$	—	$	65,198	$	—

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The aggregate remaining contractual principal balance outstanding as of September 30, 2016, December 31, 2015 and September 30, 2015 for mortgage loans held-for-sale measured at fair value under ASC 825 was $537.0 million, $372.0 million and $328.1 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $559.6 million, $388.0 million and $347.0 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 September 30, 2016, December 31, 2015 and September 30, 2015.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and nine months ended September 30, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2016	$	69,812		$	25,187		$	13,382
Total net gains (losses) included in:
Net income (1)	—			—			519
Other comprehensive loss	(241		)	—			—
Purchases	2,184			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(4,547		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				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)	—			—			4,809
Other comprehensive loss	(141		)	(12		)	—
Purchases	6,458			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(7,722		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2015	$	58,572		$	24,996		$	8,034
Total net (losses) gains included in:
Net income (1)	—			—			(159		)
Other comprehensive income (loss)	223			(480		)	—
Purchases	10,405			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(799		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2015	$	68,401		$	24,516		$	7,875

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

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				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net (losses) gains included in:
Net income (1)	—			—		(560		)
Other comprehensive (loss) income	(287		)	805		—
Purchases	21,254			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(11,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at September 30, 2015	$	68,401		$	24,516	$	7,875

(1) Changes in the balance of MSRs 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 September 30, 2016.

	September 30, 2016								Three Months Ended September 30, 2016 Fair Value Losses Recognized, net		Nine Months Ended September 30, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	64,614	$	—	$	—	$	64,614	$	4,635	$	10,865
Other real estate owned, including covered other real estate owned (1)	45,449		—		—		45,449		1,237		4,617
Total	$	110,063	$	—	$	—	$	110,063	$	5,872	$	15,482

(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 September 30, 2016, the Company had $90.5 million of impaired loans classified as Level 3. Of the $90.5 million of impaired loans, $64.6 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $25.9 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 September 30, 2016, the Company had $45.4 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

45

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 September 30, 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	$	67,208	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
MSRs	13,901		Discounted cash flows	Discount rate	3%-7%	5.52%	Decrease
				Constant prepayment rate (CPR)	2%-85%	14.73%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	64,614	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	45,449		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 September 30, 2016				At December 31, 2015				At September 30, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	246,947	$	246,947	$	275,795	$	275,795	$	250,655	$	250,655
Interest bearing deposits with banks	816,104		816,104		607,782		607,782		701,106		701,106
Available-for-sale securities	1,650,096		1,650,096		1,716,388		1,716,388		2,214,281		2,214,281
Held-to-maturity securities	932,767		942,666		884,826		878,111		—		—
Trading account securities	1,092		1,092		448		448		3,312		3,312
FHLB and FRB stock, at cost	129,630		129,630		101,581		101,581		90,308		90,308
Brokerage customer receivables	25,511		25,511		27,631		27,631		28,293		28,293
Mortgage loans held-for-sale, at fair value	559,634		559,634		388,038		388,038		347,005		347,005
Total loans	19,197,201		20,251,518		17,266,790		18,106,829		16,484,820		17,284,375
MSRs	13,901		13,901		9,092		9,092		7,875		7,875
Nonqualified deferred compensation assets	9,218		9,218		8,517		8,517		8,342		8,342
Derivative assets	88,828		88,828		51,298		51,298		69,034		69,034
Accrued interest receivable and other	205,725		205,725		193,092		193,092		192,572		192,572
Total financial assets	$	23,876,654	$	24,940,870	$	21,531,278	$	22,364,602	$	20,397,603	$	21,197,158
Financial Liabilities
Non-maturity deposits	$	16,946,178	$	16,946,178	$	14,634,957	$	14,634,957	$	14,092,697	$	14,092,697
Deposits with stated maturities	4,201,477		4,200,278		4,004,677		3,998,180		4,135,772		4,137,856
FHLB advances	419,632		427,103		853,431		863,437		451,330		459,154
Other borrowings	241,366		241,366		265,785		265,785		259,978		259,978
Subordinated notes	138,943		138,715		138,861		140,302		138,834		142,953
Junior subordinated debentures	253,566		254,108		268,566		268,046		268,566		268,058
Derivative liabilities	87,948		87,948		45,019		45,019		65,198		65,198
FDIC indemnification liability	17,945		17,945		6,100		6,100		3,033		3,033
Accrued interest payable	8,007		8,007		7,394		7,394		11,364		11,364
Total financial liabilities	$	22,315,062	$	22,321,648	$	20,224,790	$	20,229,220	$	19,426,772	$	19,440,291

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

47

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.

FHLB advances. The fair value of FHLB advances is obtained from the FHLB 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 FHLB 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 and other incentive awards valued in whole or in part by reference to the Company’s common stock, all on a stand alone, combination or tandem basis. 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 nine month periods ending September 30, 2016 and 2015.

	Nine Months Ended
	September 30,		September 30,
	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 $2.0 million in the third quarter of 2016 and $2.5 million in the third quarter of 2015, and $6.8 million and $7.8 million for the year-to-date periods, respectively.

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A summary of the Company's stock option activity for the nine months endedSeptember 30, 2016 and September 30, 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	562,166		41.04
Exercised	(184,366	)	37.43
Forfeited or canceled	(86,039	)	48.93
Outstanding at September 30, 2016	1,843,495		$	41.27	4.8	$	26,363
Exercisable at September 30, 2016	813,666		$	39.27	3.5	$	13,265

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	502,517		44.36
Exercised	(258,836	)	43.14
Forfeited or canceled	(277,150	)	53.64
Outstanding at September 30, 2015	1,601,321		$	41.34	4.7	$	19,738
Exercisable at September 30, 2015	715,101		$	37.52	3.2	$	11,376

(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 nine months ended September 30, 2016 and September 30, 2015 was $8.61 and $9.72, respectively. The aggregate intrinsic value of options exercised during the nine months ended September 30, 2016 and 2015, was $2.7 million and $2.3 million, respectively.

A summary of the Plans' restricted share activity for the nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	15,764		44.72		15,657		45.81
Vested and issued	(10,041	)	43.78		(20,409	)	39.07
Forfeited or canceled	(598	)	44.26		(2,400	)	36.81
Outstanding at September 30	142,718		$	49.52	138,960		$	48.68
Vested, but not issuable at September 30	88,889		$	51.44	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 nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	118,072		41.02		106,017		44.35
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(13,229	)	41.12		(33,854	)	32.74
Outstanding at September 30	302,966		$	43.64	289,252		$	43.00
Vested, but deferred at September 30	6,660		$	37.93	—		$	—

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

(16) Shareholders’ Equity and Earnings Per Share

Common Stock Offering

In June 2016, the Company issued through a public offering a total of 3,000,000 shares of its common stock. Net proceeds to the Company totaled approximately $152.8 million.

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 current conversion rate of 24.5569 shares of common stock per share of Series C Preferred Stock subject to customary anti-dilution adjustments. In the first nine months 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 nine months of 2016, 1,603 warrant shares were exercised, which resulted in 944 shares of common stock issued. At September 30, 2016, all remaining holders of the interest in the warrant were able to exercise 365,829 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.

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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. At the April 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 May 26, 2016 to shareholders of record as of May 12, 2016. At the July 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 August 25, 2016 to shareholders of record as of August 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 July 1, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,532			1,037			(1,644		)	925
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(2,005		)	646			—			(1,359		)
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	2,295			—			—			2,295
Net other comprehensive income (loss) during the period, net of tax	$	1,822		$	1,683		$	(1,644	)	$	1,861
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income during the period, net of tax, before reclassifications	20,444			66			5,006			25,516
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(3,684		)	1,590			—			(2,094		)
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	$	6,707		$	—		$	—		$	6,707
Net other comprehensive income during the period, net of tax	$	23,467		$	1,656		$	5,006		$	30,129
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at July 1, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,995			(287		)	(6,337		)	12,371
Amount reclassified from accumulated other comprehensive (loss) income into net income, net of tax	60			347			—			407
Amount reclassified from accumulated other comprehensive (loss) income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	19,055		$	60		$	(6,337	)	$	12,778
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

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	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, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	2,499			(1,027		)	(13,866		)	(12,394		)
Amount reclassified from accumulated other comprehensive loss into net income, net of tax	(244		)	877			—			633
Amount reclassified from accumulated other comprehensive loss related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	2,255		$	(150	)	$	(13,866	)	$	(11,761	)
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Nine Months Ended						Impacted Line on the Consolidated Statements of Income
	September 30,						September 30,
	2016			2015			2016			2015
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	3,305		$	(98	)	$	6,070		$	402		Gains (losses) on investment securities, net
	3,305			(98		)	6,070			402			Income before taxes
Tax effect	$	(1,300	)	$	38		$	(2,386	)	$	(158	)	Income tax expense
Net of tax	$	2,005		$	(60	)	$	3,684		$	244		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	528		$	92		$	1,121		$	92		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	537			479			$	1,499		$	1,350		Interest on junior subordinated debentures
	(1,065		)	(571		)	(2,620		)	(1,442		)	Income before taxes
Tax effect	$	419		$	224		$	1,030		$	565		Income tax expense
Net of tax	$	(646	)	$	(347	)	$	(1,590	)	$	(877	)	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				Nine Months Ended
(In thousands, except per share data)		September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Net income		$	53,115	$	38,355	$	152,267	$	121,238
Less: Preferred stock dividends and discount accretion		3,628		4,079		10,884		7,240
Net income applicable to common shares—Basic	(A)	49,487		34,276		141,383		113,998
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,579		4,735		4,740
Net income applicable to common shares—Diluted	(B)	51,065		35,855		146,118		118,738
Weighted average common shares outstanding	(C)	51,679		48,158		49,763		47,658
Effect of dilutive potential common shares
Common stock equivalents		938		978		822		1,070
Convertible preferred stock, if dilutive		3,109		3,071		3,109		3,071
Total dilutive potential common shares		4,047		4,049		3,931		4,141
Weighted average common shares and effect of dilutive potential common shares	(D)	55,726		52,207		53,694		51,799
Net income per common share:
Basic	(A/C)	$	0.96	$	0.71	$	2.84	$	2.39
Diluted	(B/D)	$	0.92	$	0.69	$	2.72	$	2.29

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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ITEM 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of financial condition as of September 30, 2016 compared with December 31, 2015 and September 30, 2015, and the results of operations for the three and nine month periods ended September 30, 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

Third Quarter Highlights

The Company recorded net income of $53.1 million for the third quarter of 2016 compared to $38.4 million in the third quarter of 2015. The results for the third quarter of 2016 demonstrate continued momentum on our operating strengths including strong loan and deposit growth driving higher net interest income, higher mortgage banking and wealth management revenue, increased fees from covered call options and improving credit quality metrics.

The Company increased its loan portfolio, excluding covered loans and mortgage loans held-for-sale, from $16.3 billion at September 30, 2015 and $17.1 billion at December 31, 2015 to $19.1 billion at September 30, 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 and performing loans and relationships acquired from an affiliate of GE Capital Franchise Finance. 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 third 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 September 30, 2016, the Company had approximately $1.1 billion in overnight liquid funds and interest-bearing deposits with banks.

The Company recorded net interest income of $184.6 million in the third quarter of 2016 compared to $165.5 million in the third quarter of 2015. The higher level of net interest income recorded in the third quarter of 2016 compared to the third quarter of 2015 resulted primarily from a $2.6 billion increase in average loans, excluding covered loans. The increase in average loans, excluding covered loans, was partially offset by a eight basis point decline in the yield on earning assets, on a fully tax-equivalent basis and a four basis point increase in the rate on interest bearing liabilities (see "Net Interest Income" for further detail).

Non-interest income totaled $86.6 million in the third quarter of 2016, an increase of $21.7 million, or 33%, compared to the third quarter of 2015. The increase in the third quarter of 2016 compared to the third quarter of 2015 was primarily attributable to higher mortgage banking and wealth management revenue, higher gains on sales of investment securities, increased operating lease income, an increase in service charges on deposits and fees from covered call options and higher BOLI income (see “Non-Interest Income” for further detail).

Non-interest expense totaled $176.6 million in the third quarter of 2016, increasing $16.6 million, or 10%, compared to the third quarter of 2015. The increase compared to the third 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, increased equipment expense, including operating lease equipment depreciation, higher OREO expenses and professional fees(see “Non-Interest Expense” for further detail).

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Announced Acquisitions

On July 6, 2016, the Company announced the signing of a definitive agreement to acquire First Community Financial Corporation ("FCFC"). FCFC is the parent company of First Community Bank, an Illinois state-chartered bank, which operates two banking locations in Elgin, Illinois. As of September 30, 2016, First Community Bank had approximately $172 million in assets, approximately $81 million in loans and approximately $147 million in deposits.

RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures for the three and nine months ended September 30, 2016, as compared to the same period last year, are shown below:

	Three months ended
(Dollars in thousands, except per share data)	September 30, 2016			September 30, 2015			Percentage (%) or Basis Point (bp) Change
Net income	$	53,115		$	38,355		38	%
Net income per common share—Diluted	0.92			0.69			33
Net revenue (1)	271,240			230,493			18
Net interest income	184,636			165,540			12
Net interest margin	3.21		%	3.31		%	(10) bp
Net interest margin - fully taxable equivalent (non-GAAP) (2)	3.24		%	3.33		%	(9) bp
Net overhead ratio (3)	1.44		%	1.74		%	(30) bp
Return on average assets	0.85			0.70			15
Return on average common equity	8.20			6.60			160
Return on average tangible common equity (2)	10.55			8.88			167

	Nine months ended
(Dollars in thousands, except per share data)	September 30, 2016			September 30, 2015			Percentage (%) or Basis Point (bp) Change
Net income	$	152,267		$	121,238		26	%
Net income per common share—Diluted	2.72			2.29			19
Net revenue (1)	771,570			680,830			13
Net interest income	531,415			474,323			12
Net interest margin	3.25		%	3.36		%	(11) bp
Net interest margin - fully taxable equivalent (non-GAAP) (2)	3.27		%	3.39		%	(12) bp
Net overhead ratio (3)	1.46			1.66			(20) bp
Return on average assets	0.85			0.79			6
Return on average common equity	8.39			7.53			86
Return on average tangible common equity (2)	10.98			9.90			108
At end of period
Total assets	$	25,321,759		$	22,035,216		15	%
Total loans, excluding loans held-for-sale, excluding covered loans	19,101,261			16,316,211			17
Total loans, including loans held-for-sale, excluding covered loans	19,660,895			16,663,216			18
Total deposits	21,147,655			18,228,469			16
Total shareholders’ equity	2,674,474			2,335,736			15
Book value per common share (2)	$	46.86		$	43.12		9
Tangible common book value per share (2)	37.06			32.83			13
Market price per common share	55.57			53.43			4
Excluding covered loans:
Allowance for credit losses to total loans (4)	0.62		%	0.64		%	(2) bp
Non-performing loans to total loans	0.44		%	0.53		%	(9	)

(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 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

56

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%.

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.

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

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(Dollars and shares in thousands)	2016			2015			2016			2015
Calculation of Net Interest Margin and Efficiency Ratio
(A) Interest Income (GAAP)	$	208,149		$	185,379		$	597,444		$	530,977
Taxable-equivalent adjustment:
- Loans	584			346			1,616			1,001
- Liquidity Management Assets	963			841			2,815			2,355
- Other Earning Assets	9			10			23			44
(B) Interest Income - FTE	$	209,705		$	186,576		$	601,898		$	534,377
(C) Interest Expense (GAAP)	23,513			19,839			66,029			56,654
(D) Net Interest Income - FTE (B minus C)	$	186,192		$	166,737		$	535,869		$	477,723
(E) Net Interest Income (GAAP) (A minus C)	$	184,636		$	165,540		$	531,415		$	474,323
Net interest margin (GAAP-derived)	3.21		%	3.31		%	3.25		%	3.36		%
Net interest margin - FTE	3.24		%	3.33		%	3.27		%	3.39		%
(F) Non-interest income	$	86,604		$	64,953		$	240,155		$	206,507
(G) Gains (losses) on investment securities, net	3,305			(98		)	6,070			402
(H) Non-interest expense	176,615			159,974			501,314			461,589
Efficiency ratio (H/(E+F-G))	65.92		%	69.38		%	65.49		%	67.84		%
Efficiency ratio - FTE (H/(D+F-G))	65.54		%	69.02		%	65.11		%	67.50		%
Calculation of Tangible Common Equity ratio (at period end)
Total shareholders’ equity	$	2,674,474		$	2,335,736
(I) Less: Convertible preferred stock	(126,257		)	(126,312		)
Less: Non-convertible preferred stock	(125,000		)	(125,000		)
Less: Intangible assets	(506,674		)	(497,699		)
(J) Total tangible common shareholders’ equity	$	1,916,543		$	1,586,725
Total assets	$	25,321,759		$	22,035,216
Less: Intangible assets	(506,674		)	(497,699		)
(K) Total tangible assets	$	24,815,085		$	21,537,517
Tangible common equity ratio (J/K)	7.7		%	7.4		%
Tangible common equity ratio, assuming full conversion of convertible preferred stock ((J-I)/K)	8.2		%	8.0		%
Calculation of book value per share
Total shareholders’ equity	$	2,674,474		$	2,335,736
Less: Preferred stock	(251,257		)	(251,312		)
(L) Total common equity	$	2,423,217		$	2,084,424
(M) Actual common shares outstanding	51,715			48,337
Book value per common share (L/M)	$	46.86		$	43.12
Tangible common book value per share (J/M)	$	37.06		$	32.83

Calculation of return on average common equity
(N) Net income applicable to common shares	49,487		34,276		141,383		113,998
Add: After-tax intangible asset amortization	677		833		2,270		2,046
(O) Tangible net income applicable to common shares	50,164		35,109		143,653		116,044
Total average shareholders' equity	2,651,684		2,310,511		2,502,940		2,194,384
Less: Average preferred stock	(251,257	)	(251,312	)	(251,259	)	(171,238	)
(P) Total average common shareholders' equity	2,400,427		2,059,199		2,251,681		2,023,146
Less: Average intangible assets	(508,812	)	(490,583	)	(503,966	)	(455,787	)
(Q) Total average tangible common shareholders’ equity	1,891,615		1,568,616		1,747,715		1,567,359
Return on average common equity, annualized (N/P)	8.20	%	6.60	%	8.39	%	7.53	%
Return on average tangible common equity, annualized (O/Q)	10.55	%	8.88	%	10.98	%	9.90	%

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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 September 30, 2016 totaled $53.1 million, an increase of $14.8 million, or 38%, compared to the third quarter of 2015. On a per share basis, net income for the third quarter of 2016 totaled $0.92 per diluted common share compared to $0.69 in the third quarter of 2015.

The most significant factors impacting net income for the third 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, gains on sales of investment securities, increased operating lease income, and an increase in mortgage banking revenue. These improvements were offset by an increase in non-interest expense 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 and increased equipment expense, including operating lease equipment depreciation.

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.

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Quarter Ended September 30, 2016 compared to the Quarters Ended June 30, 2016 and September 30, 2015

The following table presents a summary of the Company’s net interest income and related net interest margin, including a calculation on a fully taxable equivalent basis, for the third quarter of 2016 as compared to the second quarter of 2016 (sequential quarters) and third 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)	September 30, 2016			June 30, 2016			September 30, 2015			September 30, 2016			June 30, 2016			September 30, 2015			September 30, 2016		June 30, 2016		September 30, 2015
Liquidity management assets(1) (2)(7)	$	3,671,577		$	3,413,113		$	3,140,782		$	18,710		$	19,236		$	18,165		2.03	%	2.27	%	2.29	%
Other earning assets(2)(3)(7)	29,875			29,759			30,990			222			238			234			2.96		3.21		3.00
Loans, net of unearned income(2)(4)(7)	19,071,621			18,204,552			16,509,001			189,637			177,571			165,572			3.96		3.92		3.98
Covered loans	101,570			109,533			174,768			1,136			1,482			2,605			4.45		5.44		5.91
Total earning assets(7)	$	22,874,643		$	21,756,957		$	19,855,541		$	209,705		$	198,527		$	186,576		3.65	%	3.67	%	3.73	%
Allowance for loan and covered loan losses	(121,156		)	(116,984		)	(106,091		)
Cash and due from banks	240,239			272,935			251,289
Other assets	1,885,526			1,841,847			1,678,323
Total assets	$	24,879,252		$	23,754,755		$	21,679,062
Interest-bearing deposits	$	15,117,102		$	14,065,995		$	13,489,651		$	15,621		$	13,594		$	12,436		0.41	%	0.39	%	0.37	%
FHLB advances	459,198			946,081			394,666			2,577			2,984			2,458			2.23		1.27		2.47
Other borrowings	249,307			248,233			272,549			1,137			1,086			1,045			1.81		1.76		1.52
Subordinated notes	138,925			138,898			138,825			1,778			1,777			1,776			5.12		5.12		5.12
Junior subordinated notes	253,566			253,566			264,974			2,400			2,353			2,124			3.70		3.67		3.14
Total interest-bearing liabilities	$	16,218,098		$	15,652,773		$	14,560,665		$	23,513		$	21,794		$	19,839		0.58	%	0.56	%	0.54	%
Non-interest bearing deposits	5,566,983			5,223,384			4,473,632
Other liabilities	442,487			412,866			334,254
Equity	2,651,684			2,465,732			2,310,511
Total liabilities and shareholders’ equity	$	24,879,252		$	23,754,755		$	21,679,062
Interest rate spread(5)(7)																			3.07	%	3.11	%	3.19	%
Less: Fully tax-equivalent adjustment										(1,556		)	(1,463		)	(1,197		)	(0.03	)	(0.03	)	(0.02	)
Net free funds/contribution(6)	$	6,656,545		$	6,104,184		$	5,294,876											0.17		0.16		0.14
Net interest income/ margin(7) (GAAP)										$	184,636		$	175,270		$	165,540		3.21	%	3.24	%	3.31	%
Fully tax-equivalent adjustment										1,556			$	1,463		$	1,197		0.03		0.03		0.02
Net interest income/ margin - FTE (7)										$	186,192		$	176,733		$	166,737		3.24	%	3.27	%	3.33	%

(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 September 30, 2016, June 30, 2016 and September 30, 2015 were $1.6 million, $1.5 millionand $1.2 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.

For the third quarter of 2016, net interest income totaled $184.6 million, an increase of $9.4 million as compared to the second quarter of 2016 and an increase of $19.1 million as compared to the third quarter of 2015. Net interest margin was 3.21% (3.24% on a fully tax-equivalent basis) during the third quarter of 2016 compared to 3.24% (3.27% on a fully tax-equivalent basis) during the second quarter of 2016 and 3.31% (3.33% on a fully tax-equivalent basis) during the third quarter of 2015. The reduction in net interest margin compared to the second quarter of 2016 is primarily the result of a decline in yields on mortgage-backed securities due to accelerated premium amortization. In the third quarter of 2016, $1.8 million of premium amortization was accelerated due to payment on the underlying security, compared to $751,000 in the second quarter of 2016.

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Nine months endedSeptember 30, 2016 compared to nine months endedSeptember 30, 2015

The following table presents a summary of the Company’s net interest income and related net interest margin, including a calculation on a fully taxable equivalent basis, for the nine months endedSeptember 30, 2016 compared to the nine months endedSeptember 30, 2015:

	Average Balance for nine months ended,						Interest for nine months ended,						Yield/Rate for nine months ended,
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015
Liquidity management assets(1)(2)(7)	$	3,462,375		$	2,907,284		$	57,740		$	50,328		2.23	%	2.31	%
Other earning assets(2)(3)(7)	29,457			30,286			696			718			3.16		3.17
Loans, net of unearned income(2)(4)(7)	18,264,545			15,730,009			538,833			473,857			3.94		4.03
Covered loans	117,427			197,069			4,629			9,474			5.27		6.43
Total earning assets(7)	$	21,873,804		$	18,864,648		$	601,898		$	534,377		3.68	%	3.79	%
Allowance for loan and covered loan losses	(116,739		)	(101,440		)
Cash and due from banks	257,443			245,745
Other assets	1,834,904			1,577,971
Total assets	$	23,849,412		$	20,586,924
Interest-bearing deposits	$	14,303,125		$	13,158,498		$	41,996		$	36,246		0.39	%	0.37	%
FHLB advances	742,423			360,470			8,447			6,426			1.52		2.38
Other borrowings	251,633			220,478			3,281			2,620			1.74		1.59
Subordinated notes	138,898			138,799			5,332			5,328			5.12		5.12
Junior subordinated notes	254,935			254,710			6,973			6,034			3.59		3.12
Total interest-bearing liabilities	$	15,691,014		$	14,132,955		$	66,029		$	56,654		0.56	%	0.54	%
Non-interest bearing deposits	5,244,552			3,931,194
Other liabilities	410,906			328,391
Equity	2,502,940			2,194,384
Total liabilities and shareholders’ equity	$	23,849,412		$	20,586,924
Interest rate spread(5)(7)													3.12	%	3.25	%
Less: Fully tax-equivalent adjustment							(4,454		)	(3,400		)	(0.02	)	(0.03	)
Net free funds/contribution(6)	$	6,182,790		$	4,731,693								0.15		0.14
Net interest income/ margin(7) (GAAP)							$	531,415		$	474,323		3.25	%	3.36	%
Fully tax-equivalent adjustment							4,454			3,400			0.02		0.03
Net interest income/ margin - FTE (7)							$	535,869		$	477,723		3.27	%	3.39	%

(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 nine months ended September 30, 2016 and September 30, 2015 were $4.5 million and $3.4 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.

For the first nine months of 2016, net interest income totaled $531.4 million, an increase of $57.1 million as compared to the first nine months of 2015. Net interest margin was 3.25% (3.27% on a fully tax-equivalent basis) for the first nine months of 2016 compared to 3.36% (3.39% on a fully tax-equivalent basis) for the same period of 2015. The reduction in net interest margin compared to the first nine months of 2015 is primarily the result of a decline in loan yields, including less accretion recognized on purchased loans, and an increase on the rate of interest bearing liabilities.

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Analysis of Changes in Net Interest Income (GAAP)

The following table presents an analysis of the changes in the Company’s net interest income comparing the three month periods ended September 30, 2016 to June 30, 2016 and September 30, 2015, and the nine month periods ended September 30, 2016 and September 30, 2015. The reconciliations set forth the changes in the GAAP-derived net interest income as a result of changes in volumes, changes in rates and differing number of days in each period:

	Third Quarter of 2016 Compared to Second Quarter of 2016			Third Quarter of 2016 Compared to Third Quarter of 2015			First Nine Months of 2016 Compared to First Nine Months of 2015
(Dollars in thousands)
Net interest income (GAAP) for comparative period	$	175,270		$	165,540		$	474,323
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)	11,778			25,002			68,045
Change due to interest rate fluctuations (rate)	(4,317		)	(5,906		)	(12,684		)
Change due to number of days in each period	1,905			—			1,731
Net interest income (GAAP) for the period ended September 30, 2016	$	184,636		$	184,636		$	531,415
Fully tax-equivalent adjustment	1,556			1,556			4,454
Net interest income - FTE	$	186,192		$	186,192		$	535,869

Non-interest Income

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

	Three Months Ended						$ Change			% Change
(Dollars in thousands)	September 30, 2016			September 30, 2015
Brokerage	$	6,752		$	6,579		$	173		3	%
Trust and asset management	12,582			11,664			918			8
Total wealth management	19,334			18,243			1,091			6
Mortgage banking	34,712			27,887			6,825			24
Service charges on deposit accounts	8,024			7,403			621			8
Gains (losses) on investment securities, net	3,305			(98		)	3,403			NM
Fees from covered call options	3,633			2,810			823			29
Trading losses, net	(432		)	(135		)	(297		)	NM
Operating lease income, net	4,459			613			3,846			NM
Other:
Interest rate swap fees	2,881			2,606			275			11
BOLI	884			212			672			NM
Administrative services	1,151			1,072			79			7
Gain on extinguishment of debt	—			—			—			NM
Miscellaneous	8,653			4,340			4,313			99
Total Other	13,569			8,230			5,339			65
Total Non-Interest Income	$	86,604		$	64,953		$	21,651		33	%

NM - Not Meaningful

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	Nine Months Ended						$ Change			% Change
(Dollars in thousands)	September 30, 2016			September 30, 2015
Brokerage	$	19,111		$	20,181		$	(1,070	)	(5	)%
Trust and asset management	37,395			34,638			2,757			8
Total wealth management	56,506			54,819			1,687			3
Mortgage banking	93,254			91,694			1,560			2
Service charges on deposit accounts	23,156			20,174			2,982			15
Gains on investment securities, net	6,070			402			5,668			NM
Fees from covered call options	9,994			11,735			(1,741		)	(15	)
Trading losses, net	(916		)	(452		)	(464		)	NM
Operating lease income, net	11,270			755			10,515			NM
Other:
Interest rate swap fees	9,154			7,144			2,010			28
BOLI	2,613			3,158			(545		)	(17	)
Administrative services	3,294			3,151			143			5
Gain on extinguishment of debt	4,305			—			4,305			NM
Miscellaneous	21,455			13,927			7,528			54
Total Other	40,821			27,380			13,441			49
Total Non-Interest Income	$	240,155		$	206,507		$	33,648		16	%

NM - Not Meaningful

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

The increase in wealth management revenue during the current periods as compared to the same periods 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 Investments, LLC ("WHI").

The increase in mortgage banking revenue in the current periods compared to the prior year periods is primarily due to higher origination volumes during the current year. Mortgage loans originated or purchased for sale totaled $1.3 billion in the current quarter as compared to $973.7 million in the third quarter of 2015. On a year-to-date basis, mortgage loans originated or purchased for sale totaled $3.2 billion in the first nine months of 2016 compared to $3.1 billion for the same period of 2015. This increase in revenue in the third quarter of 2016 was partly offset by a $2.5 million negative fair value adjustment on MSRs as a result of actual prepayments in the current period and higher projected prepayment speeds. 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.

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The table below presents additional selected information regarding mortgage banking revenue for the respective periods.

	Three months ended						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Retail originations	$	1,138,571		$	900,302		$	2,978,643		$	2,906,508
Correspondent originations	121,007			73,362			229,825			188,393
(A) Total originations	$	1,259,578		$	973,664		$	3,208,468		$	3,094,901
Purchases as a percentage of originations	57		%	72		%	60		%	60		%
Refinances as a percentage of originations	43			28			40			40
Total	100		%	100		%	100		%	100		%
(B) Production revenue (1)	$	32,889		$	27,211		$	85,040		$	90,640
Production margin (B/A)	2.61		%	2.79		%	2.65		%	2.93		%
(C) Loans serviced for others	$	1,508,469		$	853,286
(D) MSRs, at fair value	13,901			7,875
Percentage of MSRs to loans serviced for others (D/C)	0.92		%	0.92		%

(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, and excludes servicing fees, changes in fair value of servicing rights and changes to the mortgage recourse obligation.

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 investment securities in the current quarter primarily relate to the sales and calls of certain mortgage-backed securities that were held in the Company's investment 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 year compared to the same period 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 September 30, 2016 and September 30, 2015.

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

The increase in other non-interest income during the first nine months of 2016 as compared to the same period of 2015 is primarily due to the gain on 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, gains recognized on the purchase and sale of certain assets and income from investments in partnerships and other investments, partially offset by lower income on BOLI.

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Non-interest Expense

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

	Three months ended					$ Change			% Change
(Dollars in thousands)	September 30, 2016		September 30, 2015
Salaries and employee benefits:
Salaries	$	54,309	$	53,028		$	1,281		2	%
Commissions and incentive compensation	33,740		30,035			3,705			12
Benefits	15,669		14,686			983			7
Total salaries and employee benefits	103,718		97,749			5,969			6
Equipment	9,449		8,456			993			12
Operating lease equipment depreciation	3,605		431			3,174			NM
Occupancy, net	12,767		12,066			701			6
Data processing	7,432		8,127			(695		)	(9	)
Advertising and marketing	7,365		6,237			1,128			18
Professional fees	5,508		4,100			1,408			34
Amortization of other intangible assets	1,085		1,350			(265		)	(20	)
FDIC insurance	3,686		3,035			651			21
OREO expense, net	1,436		(367		)	1,803			NM
Other:
Commissions—3rd party brokers	1,362		1,364			(2		)	—
Postage	1,889		1,927			(38		)	(2	)
Miscellaneous	17,313		15,499			1,814			12
Total other	20,564		18,790			1,774			9
Total Non-Interest Expense	$	176,615	$	159,974		$	16,641		10	%

	Nine months ended				$ Change			% Change
(Dollars in thousands)	September 30, 2016		September 30, 2015
Salaries and employee benefits:
Salaries	$	157,515	$	146,493	$	11,022		8	%
Commissions and incentive compensation	92,646		88,916		3,730			4
Benefits	50,262		46,891		3,371			7
Total salaries and employee benefits	300,423		282,300		18,123			6
Equipment	27,523		24,090		3,433			14
Operating lease equipment depreciation	9,040		547		8,493			NM
Occupancy, net	36,658		35,818		840			2
Data processing	21,089		19,656		1,433			7
Advertising and marketing	18,085		16,550		1,535			9
Professional fees	14,986		13,838		1,148			8
Amortization of other intangible assets	3,631		3,297		334			10
FDIC insurance	11,339		9,069		2,270			25
OREO expense, net	3,344		1,885		1,459			77
Other:
Commissions—3rd party brokers	3,996		4,153		(157		)	(4	)
Postage	5,229		5,138		91			2
Miscellaneous	45,971		45,248		723			2
Total other	55,196		54,539		657			1
Total Non-Interest Expense	$	501,314	$	461,589	$	39,725		9	%

NM - Not Meaningful

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

Salaries and employee benefits expense increased in the current periods compared to the same periods of 2015 primarily as a result of the addition of employees from acquisitions, increased staffing as the Company grows, higher commissions and incentive

65

compensation on variable pay based arrangements and an increase in employee benefits (primarily health plan and payroll taxes related).

Operating lease equipment depreciation increased in the current quarter and year-to-date periods compared to the same periods of 2015 as a result of growth in business from the Company's leasing divisions.

Income Taxes

The Company recorded income tax expense of $31.9 million for the three months ended September 30, 2016, compared to $23.8 million for same period of 2015. Income tax expense was $91.3 million and $74.1 million for the nine months ended September 30, 2016 and 2015, respectively. The effective tax rates were 37.6% and 38.3% for the third quarters of 2016 and 2015, respectively, and 37.5% and 37.9% for the 2016 and 2015 year-to-date periods, 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 September 30, 2016 totaled $150.2 million as compared to $132.5 million for the same period in 2015, an increase of $17.6 million, or 13%. On a year-to-date basis, net interest income for the segment increased by $51.9 million from $382.2 million for the first nine months of 2015 to $434.1 million for the first nine months of 2016. The increase in both the three and nine month periods is primarily attributable to growth in earning assets including those acquired in acquisitions. The community banking segment’s non-interest income totaled $62.7 million in the third quarter of 2016, an increase of $17.2 million, or 38%, when compared to the third quarter of 2015 total of $45.6 million. On a year-to-date basis, non-interest income totaled $169.2 million for the first nine months of 2016, an increase of $22.5 million, or 15%, compared to $146.7 million in the nine months ended September 30, 2015. The increase in non-interest income in the quarter and year-to-date periods was primarily attributable to higher service charges on deposit accounts and increased realized gains on investment securities as well as a gain on the extinguishment of debt and higher mortgage banking revenue on a year-to-date basis. The community banking segment’s net income for the quarter ended September 30, 2016 totaled $37.5 million, an increase of $14.8 million as compared to net income in the third quarter of 2015 of $22.7 million. On a year-to-date basis, the community banking segment's net income was $106.9 million for the first nine months of 2016 as compared to $76.8 million for the first nine months of 2015.

The specialty finance segment's net interest income totaled $25.5 million for the quarter ended September 30, 2016, compared to $24.7 million for the same period in 2015, an increase of $886,000, or 4%. On a year-to-date basis, net interest income increased by $4.0 million in the first nine months of 2016 as compared to the first nine months of 2015. The increase during both periods is primarily attributable to growth in earning assets. The specialty finance segment’s non-interest income totaled $12.2 million and $8.3 million for the three month periods ending September 30, 2016 and 2015, respectively. On a year-to-date basis, non-interest income increased by $11.8 million in the first nine months of 2016 as compared to the first nine months of 2015. The increase in non-interest income in the current year periods 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 periods. Our commercial premium finance operations, life insurance finance operations, lease financing operations and accounts receivable finance operations accounted for 47%, 33%, 13% and 7%, respectively, of the total revenues of our specialty finance business for the nine month period ending September 30, 2016. The net income of the specialty finance segment for the quarter ended September 30, 2016 totaled $12.8 million as compared to $12.5 million for the quarter ended September 30, 2015. On a year-to-date basis, the net income of the specialty finance segment for the nine months ended September 30, 2016 totaled $36.3 million as compared to $34.9 million for the nine months ended September 30, 2015.

The wealth management segment reported net interest income of $4.8 million for the third quarter of 2016 compared to $4.4 million in the same quarter of 2015. On a year-to-date basis, net interest income totaled $13.7 million for the first nine months of 2016 as compared to $12.8 million for the first nine months of 2015. Net interest income for this segment is primarily comprised

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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 $987.8 million and $892.4 million in the first nine months of 2016 and 2015, respectively. This segment recorded non-interest income of $20.0 million for the third quarter of 2016 compared to $18.4 million for the third quarter of 2015. On a year-to-date basis, the wealth management segment's non-interest income totaled $58.7 million during the first nine months of 2016 as compared to $56.1 million in the first nine months 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 $2.8 million for the third quarter of 2016 compared to $3.1 million for the third quarter of 2015. On a year-to-date basis, the wealth management segment's net income totaled $9.1 million and $9.5 million for the nine month periods ending September 30, 2016 and 2015, respectively. The reduction in net income in the current periods compared to the prior periods is partly due to a $1.5 million adverse arbitration award relating to a previously disclosed claim arising out of the hiring of a wealth management financial advisor by WHI.

Financial Condition

Total assets were $25.3 billion at September 30, 2016, representing an increase of $3.3 billion, or 15%, when compared to September 30, 2015 and an increase of approximately $901.1 million, or 15% on an annualized basis, when compared to June 30, 2016. Total funding, which includes deposits, all notes and advances, including secured borrowings and the junior subordinated debentures, was $22.2 billion at September 30, 2016, $21.3 billion at June 30, 2016, and $19.3 billion at September 30, 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.

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
	September 30, 2016				June 30, 2016				September 30, 2015
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Loans:
Commercial	$	5,468,228	24	%	$	5,030,253	22	%	$	4,341,027	22	%
Commercial real estate	5,852,874		26	%	5,811,650		27		5,171,118		26
Home equity	751,788		3	%	771,992		4		779,886		4
Residential real estate (1)	1,165,027		5		1,024,441		5		952,524		5
Premium finance receivables	5,697,113		25		5,433,006		25		5,121,170		26
Other loans	136,591		1		133,210		1		143,276		1
Total loans, net of unearned income excluding covered loans (2)	$	19,071,621	84	%	$	18,204,552	84	%	$	16,509,001	84	%
Covered loans	101,570		—		109,533		1		174,768		1
Total average loans (2)	$	19,173,191	84	%	$	18,314,085	85	%	$	16,683,769	85	%
Liquidity management assets (3)	$	3,671,577	16	%	$	3,413,113	15	%	3,140,782		15	%
Other earning assets (4)	29,875		—		29,759		—		30,990		—
Total average earning assets	$	22,874,643	100	%	$	21,756,957	100	%	$	19,855,541	100	%
Total average assets	$	24,879,252			$	23,754,755			$	21,679,062
Total average earning assets to total average assets			92	%			92	%			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 $19.2 billion in the third quarter of 2016, increasing $2.5 billion, or 15%, from the third quarter of 2015 and $859.1 million, or 19% on an annualized basis, from the second quarter of 2016. Combined, the commercial and commercial real estate loan categories comprised 59% and 57% of the average loan portfolio in the third quarter of 2016 and 2015, respectively. Growth realized in these categories for the third quarter of 2016 as compared to the

67

sequential and prior year periods is primarily attributable to the various bank acquisitions and increased business development efforts.

Home equity loan portfolio averaged $751.8 million in the third quarter of 2016, and decreased $28.1 million, or 4% from the average balance of $779.9 million in same period of 2015. The Company has been actively managing its home equity portfolio to ensure that diligent pricing, appraisal and other underwriting activities continue to exist. The Company has not sacrificed asset quality or pricing standards when originating new home equity loans.

Residential real estate loans averaged $1.2 billion in the third quarter of 2016, and increased $212.5 million, or 22% from the average balance of $952.5 million in same period of 2015. Additionally, compared to the quarter ended June 30, 2016, the average balance increased $140.6 million, or 55% 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 premium finance receivables totaled $5.7 billion in the third quarter of 2016, and accounted for 30% of the Company’s average total loans. The increase during 2016 compared to both the second quarter of 2016 and the third quarter of 2015 was the result of continued originations within the portfolio due to the effective marketing and customer servicing. Approximately $1.7 billion of premium finance receivables were originated in the third 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 third quarter of 2016, and 49% and 51%, respectively, for the third quarter of 2015.

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

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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:

	Nine Months Ended
	September 30, 2016				September 30, 2015
(Dollars in thousands)	Balance		Percent		Balance		Percent
Loans:
Commercial	$	5,063,499	23	%	$	4,191,137	22	%
Commercial real estate	5,764,773		26		4,852,973		26
Home equity	767,703		3		736,320		4
Residential real estate (1)	1,034,916		5		896,417		5
Premium finance receivables	5,497,715		25		4,897,534		26
Other loans	135,939		1		155,628		1
Total loans, net of unearned income excluding covered loans (2)	$	18,264,545	83	%	$	15,730,009	84	%
Covered loans	117,427		1		197,069		1
Total average loans (2)	$	18,381,972	84	%	$	15,927,078	85	%
Liquidity management assets (3)	$	3,462,375	16	%	$	2,907,284	15	%
Other earning assets (4)	29,457		—		30,286		—
Total average earning assets	$	21,873,804	100	%	$	18,864,648	100	%
Total average assets	$	23,849,412			$	20,586,924
Total average earning assets to total average assets			92	%			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

Total average loans for the first nine months ended 2016 increased $2.5 billion or 15% over the previous year period. Similar to the quarterly discussion above, approximately $872.4 million of this increase relates to the commercial portfolio, $911.8 million of this increase relates to the commercial real estate portfolio and $600.2 million of this increase relates to the premium finance receivables portfolio. The increase is partially offset by a decrease of $79.6 million in covered loans.

LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio

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

	September 30, 2016				December 31, 2015				September 30, 2015
			% of				% of				% of
(Dollars in thousands)	Amount		Total		Amount		Total		Amount		Total
Commercial	$	5,951,544	31	%	$	4,713,909	27	%	$	4,400,185	27	%
Commercial real estate	5,908,684		31		5,529,289		32		5,307,566		32
Home equity	742,868		4		784,675		5		797,465		5
Residential real estate	663,598		3		607,451		3		571,743		3
Premium finance receivables—commercial	2,430,233		13		2,374,921		14		2,407,075		15
Premium finance receivables—life insurance	3,283,359		17		2,961,496		17		2,700,275		16
Consumer and other	120,975		1		146,376		1		131,902		1
Total loans, net of unearned income, excluding covered loans	$	19,101,261	100	%	$	17,118,117	99	%	$	16,316,211	99	%
Covered loans	95,940		—		148,673		1		168,609		1
Total loans	$	19,197,201	100	%	$	17,266,790	100	%	$	16,484,820	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 September 30, 2016 and 2015:

	As of September 30, 2016						As of September 30, 2015
					Allowance						Allowance
			% of		For Loan				% of		For Loan
			Total		Losses				Total		Losses
(Dollars in thousands)	Balance		Balance		Allocation		Balance		Balance		Allocation
Commercial:
Commercial, industrial and other	$	3,605,516	30.4	%	$	29,087	$	3,010,475	31.1	%	$	23,206
Franchise	874,745		7.4		3,357		222,001		2.3		3,145
Mortgage warehouse lines of credit	309,632		2.6		2,241		136,614		1.4		1,022
Asset-based lending	845,719		7.2		6,728		802,370		8.3		6,282
Leases	299,953		2.5		893		205,786		2.1		169
PCI - commercial loans (1)	15,979		0.1		732		22,939		0.2		166
Total commercial	$	5,951,544	50.2	%	$	43,038	$	4,400,185	45.4	%	$	33,990
Commercial Real Estate:
Construction	$	451,477	3.8	%	$	4,778	$	347,234	3.5	%	$	3,748
Land	107,701		0.9		3,577		79,076		0.8		2,550
Office	884,082		7.5		6,003		790,311		8.1		7,156
Industrial	767,504		6.5		6,353		636,124		6.6		5,521
Retail	895,341		7.5		6,063		785,842		8.1		5,254
Multi-family	794,955		6.7		7,966		687,659		7.1		6,959
Mixed use and other	1,851,507		15.6		13,586		1,820,328		18.7		12,079
PCI - commercial real estate (1)	156,117		1.3		22		160,992		1.7		794
Total commercial real estate	$	5,908,684	49.8	%	$	48,348	$	5,307,566	54.6	%	$	44,061
Total commercial and commercial real estate	$	11,860,228	100.0	%	$	91,386	$	9,707,751	100.0	%	$	78,051
Commercial real estate - collateral location by state:
Illinois	$	4,652,758	78.8	%			$	4,053,531	76.4	%
Wisconsin	646,116		10.9				577,231		10.9
Total primary markets	$	5,298,874	89.7	%			$	4,630,762	87.3	%
Indiana	111,206		1.9				106,591		2.0
Florida	77,836		1.3				56,020		1.1
Arizona	45,620		0.8				9,677		0.2
California	38,195		0.6				36,957		0.7
Other	336,953		5.7				467,559		8.7
Total	$	5,908,684	100.0	%			$	5,307,566	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 $43.0 million as of September 30, 2016 compared to $34.0 million as of September 30, 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, 89.7% of our commercial real estate loan portfolio is located in this region as of September 30, 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 September 30, 2016, our allowance for loan losses related to this portfolio is $48.3 million compared to $44.1 million as of September 30, 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 $309.6 million as of September 30, 2016 from $136.6 million as of September 30, 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.

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 September 30, 2016, our residential loan portfolio totaled $663.6 million, or 3% of our total outstanding loans.

Our adjustable rate mortgages relate to properties located principally in the Chicago metropolitan area and southern Wisconsin or vacation homes owned by local residents. These adjustable rate mortgages are often non-agency conforming. Adjustable rate mortgage loans decrease the interest rate risk we face on our mortgage portfolio. However, this risk is not eliminated due to the fact that such loans generally provide for periodic and lifetime limits on the interest rate adjustments among other features. Additionally, adjustable rate mortgages may pose a higher risk of delinquency and default because they require borrowers to make larger payments when interest rates rise. As of September 30, 2016, $12.2 million of our residential real estate mortgages, or 1.8% of our residential real estate loan portfolio were classified as nonaccrual, $1.5 million were 90 or more days past due and still accruing (0.2%), $3.3 million were 30 to 89 days past due (0.5%) and $646.6 million were current (97.5%). 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 September 30, 2016 and 2015 was $1.5 billion and $853.3 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 September 30, 2016, approximately $4.8 million of our mortgage loans consist of interest-only loans.

Premium finance receivables – commercial. FIFC and FIFC Canada originated approximately $1.4 billion in commercial insurance premium finance receivables during both the third quarter of 2016 and 2015. During both the nine months ended September 30,

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2016 and 2015, FIFC and FIFC Canada originated approximately $4.3 billion in commercial insurance premium finance receivable. 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 $274.1 million in life insurance premium finance receivables in the third quarter of 2016 as compared to$206.9 million of originations in the third quarter of 2015. For the nine months ended September 30, 2016 and 2015, FIFC originated approximately $754.7 million and $596.2 million, respectively, in life insurance premium finance receivables. The Company continues to experience increased competition and pricing pressure within the current market. These loans are originated directly with the borrowers with assistance from life insurance carriers, independent insurance agents, financial advisors and legal counsel. The life insurance policy is the primary form of collateral. In addition, these loans often are secured with a letter of credit, marketable securities or certificates of deposit. In some cases, FIFC may make a loan that has a partially unsecured position.

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

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

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 September 30, 2016 by date at which the loans reprice or mature, and the type of rate exposure:

As of September 30, 2016	One year or less		From one to five years		Over five years
(Dollars in thousands)							Total
Commercial
Fixed rate	$	100,634	$	829,041	$	475,707	$	1,405,382
Variable rate	4,531,211		9,639		5,312		4,546,162
Total commercial	$	4,631,845	$	838,680	$	481,019	$	5,951,544
Commercial real estate
Fixed rate	358,503		1,709,635		198,429		2,266,567
Variable rate	3,597,698		41,212		3,207		3,642,117
Total commercial real estate	$	3,956,201	$	1,750,847	$	201,636	$	5,908,684
Premium finance receivables, net of unearned income
Fixed rate	2,459,739		89,644		385		2,549,768
Variable rate	3,163,824		—		—		3,163,824
Total premium finance receivables (1)	$	5,623,563	$	89,644	$	385	$	5,713,592

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

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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 FRB of Chicago, the OCC, 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 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)	September 30, 2016			June 30, 2016			December 31, 2015			September 30, 2015
Loans past due greater than 90 days and still accruing (1):
Commercial	$	—		$	235		$	541		$	—
Commercial real estate	—			—			—			—
Home equity	—			—			—			—
Residential real estate	—			—			—			—
Premium finance receivables—commercial	7,754			10,558			10,294			8,231
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	60			163			150			140
Total loans past due greater than 90 days and still accruing	7,814			10,956			10,985			8,371
Non-accrual loans (2):
Commercial	16,418			16,801			12,712			12,018
Commercial real estate	22,625			24,415			26,645			28,617
Home equity	9,309			8,562			6,848			8,365
Residential real estate	12,205			12,413			12,043			14,557
Premium finance receivables—commercial	14,214			14,497			14,561			13,751
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	543			475			263			297
Total non-accrual loans	75,314			77,163			73,072			77,605
Total non-performing loans:
Commercial	16,418			17,036			13,253			12,018
Commercial real estate	22,625			24,415			26,645			28,617
Home equity	9,309			8,562			6,848			8,365
Residential real estate	12,205			12,413			12,043			14,557
Premium finance receivables—commercial	21,968			25,055			24,855			21,982
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	603			638			413			437
Total non-performing loans	$	83,128		$	88,119		$	84,057		$	85,976
Other real estate owned	19,933			22,154			26,849			29,053
Other real estate owned—from acquisitions	15,117			15,909			17,096			22,827
Other repossessed assets	428			420			174			193
Total non-performing assets	$	118,606		$	126,602		$	128,176		$	138,049
TDRs performing under the contractual terms of the loan agreement	29,440			33,310			42,744			49,173
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial	0.28		%	0.33		%	0.28		%	0.27		%
Commercial real estate	0.38			0.42			0.48			0.54
Home equity	1.25			1.13			0.87			1.05
Residential real estate	1.84			1.90			1.98			2.55
Premium finance receivables—commercial	0.90			1.01			1.05			0.91
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	0.50			0.50			0.28			0.33
Total non-performing loans	0.44		%	0.48		%	0.49		%	0.53		%
Total non-performing assets, as a percentage of total assets	0.47		%	0.52		%	0.56		%	0.63		%
Allowance for loan losses as a percentage of total non-performing loans	141.58		%	129.78		%	125.39		%	119.79		%

(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 $14.8 million, $16.3 million, $9.1 million and $10.1 million as of September 30, 2016, June 30, 2016, December 31, 2015 and September 30, 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 September 30, 2016 and June 30, 2016:

	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
As of September 30, 2016
(Dollars in thousands)
Loan Balances:
Commercial
Commercial, industrial and other	$	15,809	$	—	$	7,324	$	8,987	$	3,573,396	$	3,605,516
Franchise	—		—		458		1,626		872,661		874,745
Mortgage warehouse lines of credit	—		—		—		—		309,632		309,632
Asset-based lending	234		—		3,772		3,741		837,972		845,719
Leases	375		—		239		—		299,339		299,953
PCI - commercial (1)	—		1,783		—		1,036		13,160		15,979
Total commercial	16,418		1,783		11,793		15,390		5,906,160		5,951,544
Commercial real estate
Construction	400		—		—		3,775		447,302		451,477
Land	1,208		—		787		300		105,406		107,701
Office	3,609		—		6,457		8,062		865,954		884,082
Industrial	9,967		—		940		2,961		753,636		767,504
Retail	909		—		1,340		8,723		884,369		895,341
Multi-family	90		—		3,051		2,169		789,645		794,955
Mixed use and other	6,442		—		2,157		5,184		1,837,724		1,851,507
PCI - commercial real estate (1)	—		21,433		1,509		4,066		129,109		156,117
Total commercial real estate	22,625		21,433		16,241		35,240		5,813,145		5,908,684
Home equity	9,309		—		1,728		3,842		727,989		742,868
Residential real estate, including PCI	12,205		1,496		2,232		1,088		646,577		663,598
Premium finance receivables
Commercial insurance loans	14,214		7,754		6,968		10,291		2,391,006		2,430,233
Life insurance loans	—		—		9,960		3,717		3,006,795		3,020,472
PCI - life insurance loans (1)	—		—		—		—		262,887		262,887
Consumer and other, including PCI	543		124		204		871		119,233		120,975
Total loans, net of unearned income, excluding covered loans	$	75,314	$	32,590	$	49,126	$	70,439	$	18,873,792	$	19,101,261
Covered loans	2,331		4,806		1,545		2,456		84,802		95,940
Total loans, net of unearned income	$	77,645	$	37,396	$	50,671	$	72,895	$	18,958,594	$	19,197,201

Aging as a % of Loan Balance: As of September 30, 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	%	—	%	0.2	%	0.2	%	99.2	%	100.0	%
Franchise	—		—		0.1		0.2		99.7		100.0
Mortgage warehouse lines of credit	—		—		—		—		100.0		100.0
Asset-based lending	—		—		0.4		0.4		99.2		100.0
Leases	0.1		—		0.1		—		99.8		100.0
PCI - commercial (1)	—		11.2		—		6.5		82.3		100.0
Total commercial	0.3		—		0.2		0.3		99.2		100.0
Commercial real estate
Construction	0.1		—		—		0.8		99.1		100.0
Land	1.1		—		0.7		0.3		97.9		100.0
Office	0.4		—		0.7		0.9		98.0		100.0
Industrial	1.3		—		0.1		0.4		98.2		100.0
Retail	0.1		—		0.1		1.0		98.8		100.0
Multi-family	—		—		0.4		0.3		99.3		100.0
Mixed use and other	0.3		—		0.1		0.3		99.3		100.0
PCI - commercial real estate (1)	—		13.7		1.0		2.6		82.7		100.0
Total commercial real estate	0.4		0.4		0.3		0.6		98.3		100.0
Home equity	1.3		—		0.2		0.5		98.0		100.0
Residential real estate, including PCI	1.8		0.2		0.3		0.2		97.5		100.0
Premium finance receivables
Commercial insurance loans	0.6		0.3		0.3		0.4		98.4		100.0
Life insurance loans	—		—		0.3		0.1		99.6		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.4		0.1		0.2		0.7		98.6		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.2	%	0.3	%	0.4	%	98.7	%	100.0	%
Covered loans	2.4		5.0		1.6		2.6		88.4		100.0
Total loans, net of unearned income	0.4	%	0.2	%	0.3	%	0.4	%	98.7	%	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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	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
As of June 30, 2016
(Dollars in thousands)
Loan Balances:
Commercial
Commercial, industrial and other	$	16,414	$	—	$	1,412	$	22,317	$	3,416,432	$	3,456,575
Franchise	—		—		560		87		289,258		289,905
Mortgage warehouse lines of credit	—		—		—		—		270,586		270,586
Asset-based lending	—		235		1,899		6,421		834,112		842,667
Leases	387		—		48		—		267,639		268,074
PCI - commercial (1)	—		1,956		630		1,426		12,714		16,726
Total commercial	16,801		2,191		4,549		30,251		5,090,741		5,144,533
Commercial real estate
Construction	673		—		46		7,922		396,264		404,905
Land	1,725		—		—		340		103,816		105,881
Office	6,274		—		5,452		4,936		892,791		909,453
Industrial	10,295		—		1,108		719		754,647		766,769
Retail	916		—		535		6,450		889,945		897,846
Multi-family	90		—		2,077		1,275		775,075		778,517
Mixed use and other	4,442		—		4,285		8,007		1,795,931		1,812,665
PCI - commercial real estate (1)	—		27,228		1,663		2,608		140,799		172,298
Total commercial real estate	24,415		27,228		15,166		32,257		5,749,268		5,848,334
Home equity	8,562		—		380		4,709		747,253		760,904
Residential real estate, including PCI	12,413		1,479		1,367		299		638,106		653,664
Premium finance receivables
Commercial insurance loans	14,497		10,558		6,966		9,456		2,436,803		2,478,280
Life insurance loans	—		—		46,651		11,953		2,811,356		2,869,960
PCI - life insurance loans (1)	—		—		—		—		291,602		291,602
Consumer and other, including PCI	475		226		610		1,451		124,616		127,378
Total loans, net of unearned income, excluding covered loans	$	77,163	$	41,682	$	75,689	$	90,376	$	17,889,745	$	18,174,655
Covered loans	2,651		6,810		697		1,610		93,480		105,248
Total loans, net of unearned income	$	79,814	$	48,492	$	76,386	$	91,986	$	17,983,225	$	18,279,903

Aging as a % of Loan Balance: As of June 30, 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	0.5	%	—	%	—	%	0.6	%	98.9	%	100.0	%
Franchise	—		—		0.2		—		99.8		100.0
Mortgage warehouse lines of credit	—		—		—		—		100.0		100.0
Asset-based lending	—		—		0.2		0.8		99.0		100.0
Leases	0.1		—		—		—		99.9		100.0
PCI - commercial (1)	—		11.7		3.8		8.5		76.0		100.0
Total commercial	0.3		—		0.1		0.6		99.0		100.0
Commercial real estate
Construction	0.2		—		—		2.0		97.8		100.0
Land	1.6		—		—		0.3		98.1		100.0
Office	0.7		—		0.6		0.5		98.2		100.0
Industrial	1.3		—		0.1		0.1		98.5		100.0
Retail	0.1		—		0.1		0.7		99.1		100.0
Multi-family	—		—		0.3		0.2		99.5		100.0
Mixed use and other	0.2		—		0.2		0.4		99.2		100.0
PCI - commercial real estate (1)	—		15.8		1.0		1.5		81.7		100.0
Total commercial real estate	0.4		0.5		0.3		0.6		98.2		100.0
Home equity	1.1		—		—		0.6		98.3		100.0
Residential real estate, including PCI	1.9		0.2		0.2		—		97.7		100.0
Premium finance receivables
Commercial insurance loans	0.6		0.4		0.3		0.4		98.3		100.0
Life insurance loans	—		—		1.6		0.4		98.0		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.4		0.2		0.5		1.1		97.8		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.2	%	0.4	%	0.5	%	98.5	%	100.0	%
Covered loans	2.5		6.5		0.7		1.5		88.8		100.0
Total loans, net of unearned income	0.4	%	0.3	%	0.4	%	0.5	%	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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As of September 30, 2016, $49.1 million of all loans, excluding covered loans, or 0.3%, were 60 to 89 days past due and $70.4 million or 0.4%, were 30 to 59 days (or one payment) past due. As of June 30, 2016, $75.7 million of all loans, excluding covered loans, or 0.4%, were 60 to 89 days past due and $90.4 million, or 0.5%, 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.

The Company's home equity and residential loan portfolios continue to exhibit low delinquency ratios. Home equity loans at September 30, 2016 that were current with regard to the contractual terms of the loan agreement represent 98.0% of the total home equity portfolio. Residential real estate loans at September 30, 2016 that were current with regards to the contractual terms of the loan agreements comprise 97.5% 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						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(Dollars in thousands)	2016			2015			2016			2015
Balance at beginning of period	$	88,119		$	76,554		$	84,057		$	78,677
Additions, net	9,522			24,333			32,039			42,141
Return to performing status	(231		)	(1,028		)	(3,110		)	(2,591		)
Payments received	(5,235		)	(5,468		)	(13,353		)	(16,417		)
Transfer to OREO and other repossessed assets	(2,270		)	(1,773		)	(6,168		)	(8,678		)
Charge-offs	(3,353		)	(4,081		)	(6,829		)	(8,637		)
Net change for niche loans (1)	(3,424		)	(2,561		)	(3,508		)	1,481
Balance at end of period	$	83,128		$	85,976		$	83,128		$	85,976

(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 FRB of Chicago, the OCC, the State of Illinois and the State of Wisconsin.

Management determined that the allowance for loan losses was appropriate at September 30, 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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Allowance for loan losses at beginning of period	$	114,356		$	100,204		$	105,400		$	91,705
Provision for credit losses	9,741			8,665			27,433			24,551
Other adjustments	(112		)	(153		)	(324		)	(494		)
Reclassification (to) from allowance for unfunded lending-related commitments	(579		)	(42		)	(700		)	(151		)
Charge-offs:
Commercial	3,469			964			4,861			2,884
Commercial real estate	382			1,948			1,555			3,809
Home equity	574			1,116			3,672			3,547
Residential real estate	134			1,138			1,320			2,692
Premium finance receivables—commercial	1,959			1,595			6,350			4,384
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	389			116			720			342
Total charge-offs	6,907			6,877			18,478			17,658
Recoveries:
Commercial	176			462			926			1,117
Commercial real estate	364			213			1,029			2,349
Home equity	65			42			184			129
Residential real estate	61			136			204			228
Premium finance receivables—commercial	456			278			1,876			1,065
Premium finance receivables—life insurance	—			16			—			16
Consumer and other	72			52			143			139
Total recoveries	1,194			1,199			4,362			5,043
Net charge-offs	(5,713		)	(5,678		)	(14,116		)	(12,615		)
Allowance for loan losses at period end	$	117,693		$	102,996		$	117,693		$	102,996
Allowance for unfunded lending-related commitments at period end	1,648			926			1,648			926
Allowance for credit losses at period end	$	119,341		$	103,922		$	119,341		$	103,922
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial	0.24		%	0.05		%	0.10		%	0.06		%
Commercial real estate	0.00			0.13			0.01			0.04
Home equity	0.27			0.55			0.61			0.62
Residential real estate	0.03			0.42			0.14			0.37
Premium finance receivables—commercial	0.24			0.21			0.25			0.18
Premium finance receivables—life insurance	0.00			0.00			0.00			0.00
Consumer and other	0.92			0.17			0.56			0.17
Total loans, net of unearned income, excluding covered loans	0.12		%	0.14		%	0.10		%	0.11		%
Net charge-offs as a percentage of the provision for credit losses	58.65		%	65.53		%	51.46		%	51.39		%
Loans at period-end, excluding covered loans	$	19,101,261		$	16,316,211
Allowance for loan losses as a percentage of loans at period end	0.62		%	0.63		%
Allowance for credit losses as a percentage of loans at period end	0.62		%	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 $1.6 million and $926,000 as of September 30, 2016 and September 30, 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 September 30, 2016, the Company had $90.5 million of impaired loans with $39.0 million of this balance requiring $6.8 million of specific impairment reserves. At June 30, 2016, the Company had $96.0 million of impaired loans with $43.0 million of this balance requiring $6.6 million of specific impairment reserves. The most significant fluctuations in the recorded investment of impaired loans with specific impairment from June 30, 2016 to September 30, 2016 occurred within the commercial, industrial and other portfolio. The recorded investment and specific impairment reserves in this portfolio decreased $4.8 million and $1.4 million, respectively, which was primarily the result of three loans being charged off in the amount of $2.0 million during the third quarter of 2016. 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 six-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;

80

• 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 third quarter of 2015 and 2016, the Company modified its historical loss experience analysis by incorporating five-year and six-year average loss rate assumptions, respectively, for its historical loss experience to capture an extended credit cycle. The current six−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-, four- and five-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.

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

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

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

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

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

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

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

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TDRs

At September 30, 2016, the Company had $44.3 million in loans modified in TDRs. The $44.3 million in TDRs represents 89 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 decreased from $49.6 million representing 97 credits at June 30, 2016 and decreased from $59.3 million representing 114 credits at September 30, 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 September 30, 2016 and approximately $2.8 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 September 30, 2016, the Company was not committed to lend additional funds to borrowers 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:

	September 30,			June 30,			September 30,
(Dollars in thousands)	2016			2016			2015
Accruing TDRs:
Commercial	$	2,285		$	3,931		$	5,717
Commercial real estate	22,261			24,450			39,867
Residential real estate and other	4,894			4,929			3,589
Total accruing TDRs	$	29,440		$	33,310		$	49,173
Non-accrual TDRs: (1)
Commercial	$	2,134		$	1,477		$	147
Commercial real estate	10,610			12,240			5,778
Residential real estate and other	2,092			2,608			4,222
Total non-accrual TDRs	$	14,836		$	16,325		$	10,147
Total TDRs:
Commercial	$	4,419		$	5,408		$	5,864
Commercial real estate	32,871			36,690			45,645
Residential real estate and other	6,986			7,537			7,811
Total TDRs	$	44,276		$	49,635		$	59,320
Weighted-average contractual interest rate of TDRs	4.33		%	4.31		%	4.04		%

(1) Included in total non-performing loans.

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TDR Rollforward

The tables below present a summary of TDRs as of September 30, 2016 and September 30, 2015, and shows the changes in the balance during those periods:

Three Months Ended September 30, 2016 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	5,408		$	36,690		$	7,537		$	49,635
Additions during the period	28			—			43			71
Reductions:
Charge-offs	(761		)	(204		)	—			(965		)
Transferred to OREO and other repossessed assets	—			(681		)	(535		)	(1,216		)
Removal of TDR loan status (1)	—			(1,323		)	—			(1,323		)
Payments received	(256		)	(1,611		)	(59		)	(1,926		)
Balance at period end	$	4,419		$	32,871		$	6,986		$	44,276

Three Months Ended September 30, 2015 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	6,204		$	48,450		$	8,122		$	62,776
Additions during the period	—			—			222			222
Reductions:
Charge-offs	—			(267		)	(52		)	(319		)
Transferred to OREO and other repossessed assets	—			—			(175		)	(175		)
Removal of TDR loan status (1)	(234		)	(1,581		)	-			(1,815		)
Payments received	(106		)	(957		)	(306		)	(1,369		)
Balance at period end	$	5,864		$	45,645		$	7,811		$	59,320

Nine Months Ended September 30, 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	345			8,521			583			9,449
Reductions:
Charge-offs	(781		)	(1,038		)	(212		)	(2,031		)
Transferred to OREO and other repossessed assets	—			(1,365		)	(535		)	(1,900		)
Removal of TDR loan status (1)	—			(6,479		)	—			(6,479		)
Payments received	(892		)	(5,475		)	(249		)	(6,616		)
Balance at period end	$	4,419		$	32,871		$	6,986		$	44,276

Nine Months Ended September 30, 2015 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	7,576		$	67,623		$	7,076		$	82,275
Additions during the period	—			169			1,664			1,833
Reductions:
Charge-offs	(397		)	(268		)	(92		)	(757		)
Transferred to OREO and other repossessed assets	(562		)	(2,290		)	(279		)	(3,131		)
Removal of TDR loan status (1)	(471		)	(10,151		)	—			(10,622		)
Payments received	(282		)	(9,438		)	(558		)	(10,278		)
Balance at period end	$	5,864		$	45,645		$	7,811		$	59,320

(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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Balance at beginning of period	$	38,063		$	42,080		$	43,945		$	45,642
Disposal/resolved	(5,967		)	(7,611		)	(19,324		)	(20,532		)
Transfers in at fair value, less costs to sell	3,958			6,159			8,558			16,402
Transfers in from covered OREO subsequent to loss share expiration	—			7,316			3,300			7,316
Additions from acquisition	—			4,617			1,064			5,378
Fair value adjustments	(1,004		)	(681		)	(2,493		)	(2,326		)
Balance at end of period	$	35,050		$	51,880		$	35,050		$	51,880

	Period End
(Dollars in thousands)	September 30, 2016		June 30, 2016		September 30, 2015
Residential real estate	$	9,602	$	9,153	$	12,577
Residential real estate development	2,114		2,133		3,147
Commercial real estate	23,334		26,777		36,156
Total	$	35,050	$	38,063	$	51,880

Deposits

Total deposits at September 30, 2016 were $21.1 billion,an increase of $2.9 billion, or 16%, compared to total deposits at September 30, 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 September 30, 2016:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of September 30, 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	$	—	$	53,575	$	138,228	$	697,340	$	889,143	0.62	%
4-6 months	—		33,497		—		655,169		688,666		0.72	%
7-9 months	43,570		24,529		—		503,267		571,366		0.75	%
10-12 months	531		21,464		—		530,905		552,900		0.81	%
13-18 months	2,744		16,479		—		1,016,558		1,035,781		1.10	%
19-24 months	3,021		8,259		—		162,251		173,531		0.91	%
24+ months	1,249		13,232		—		275,609		290,090		1.29	%
Total	$	51,115	$	171,035	$	138,228	$	3,841,099	$	4,201,477	0.86	%

(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
	September 30, 2016				June 30, 2016				September 30, 2015
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Non-interest bearing	$	5,566,983	27	%	$	5,223,384	28	%	$	4,473,632	25	%
NOW and interest bearing demand deposits	2,502,388		12		2,383,125		12		2,219,654		12
Wealth management deposits	2,092,115		10		1,585,607		8		1,532,766		9
Money market	4,471,399		22		4,308,657		22		3,955,568		22
Savings	1,914,408		9		1,803,421		9		1,676,084		9
Time certificates of deposit	4,136,792		20		3,985,185		21		4,105,579		23
Total average deposits	$	20,684,085	100	%	$	19,289,379	100	%	$	17,963,283	100	%

Total average deposits for the third quarter of 2016 were $20.7 billion, an increase of $2.7 billion, or 15%, from the third 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 $1.1 billion, or 24%, in the third quarter of 2016 compared to the third 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:

	September 30,						December 31,
(Dollars in thousands)	2016			2015			2015			2014			2013
Total deposits	$	21,147,655		$	18,228,469		$	18,639,634		$	16,281,844		$	14,668,789
Brokered deposits	1,142,679			763,110			862,026			718,986			476,139
Brokered deposits as a percentage of total deposits	5.4		%	4.2		%	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, FHLB 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
	September 30,		June 30,		September 30,
(Dollars in thousands)	2016		2016		2015
FHLB advances	$	459,198	$	946,081	$	394,666
Other borrowings:
Notes payable	59,896		63,642		74,959
Short-term borrowings	36,615		41,597		63,111
Secured borrowings	134,331		124,317		116,136
Other	18,465		18,677		18,343
Total other borrowings	$	249,307	$	248,233	$	272,549
Subordinated notes	138,925		138,898		138,825
Junior subordinated debentures	253,566		253,566		264,974
Total other funding sources	$	1,100,996	$	1,586,778	$	1,071,014

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 $419.6 million at September 30, 2016, compared to $588.1 million at June 30, 2016 and $444.0 million at September 30, 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 September 30, 2016, the Company had a balance under the term facility of $56.2 million compared to $59.9 million at June 30, 2016 and $71.3 million at September 30, 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 September 30, 2016, June 30, 2016 and September 30, 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 $33.2 million at September 30, 2016 compared to $38.8 million at June 30, 2016 and $57.6 million at September 30, 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 primarily 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 $121.9 million at September 30, 2016 compared to $123.7 million at June 30, 2016 and $112.6 million at September 30, 2015. At September 30, 2016, the interest rate of the Canadian Secured Borrowing was 1.6121%.

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 September 30, 2016, the fixed-rate promissory note had a balance of $17.8 million compared to $18.0 million at June 30, 2016 and $18.3 million at September 30, 2015.

At September 30, 2016, the Company had outstanding subordinated notes totaling $138.9 million compared to $138.9 million and $138.8 million outstanding at June 30, 2016 and September 30, 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 September 30, 2016 compared to $253.6 million outstanding at June 30, 2016 and $268.6 million outstanding at September 30, 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 September 30, 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. 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 FRB for a bank holding company:

	September 30, 2016		June 30, 2016		September 30, 2015
Leverage ratio	9.0	%	9.2	%	9.2	%
Tier 1 capital to risk-weighted assets	9.8		10.1		10.3
Common equity Tier 1 capital to risk-weighted assets	8.7		8.9		8.6
Total capital to risk-weighted assets	12.1		12.4		12.6
Total average equity-to-total average assets(1)	10.7		10.4		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 FRB for bank holding companies.

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

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, as well as details on the Company's offering

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of common stock in June 2016. The Company hereby incorporates by reference Note 16 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;

• 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;

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• 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;

• 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.

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 of 100 and 200 basis points and decreases of 100 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 September 30, 2016, June 30, 2016 and September 30, 2015 is as follows:

Static Shock Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
September 30, 2016	19.6	%	10.1	%	(10.4	)%
June 30, 2016	16.9	%	8.9	%	(8.9	)%
September 30, 2015	15.6	%	8.0	%	(11.1	)%

Ramp Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
September 30, 2016	7.8	%	3.9	%	(4.1	)%
June 30, 2016	7.0	%	3.5	%	(3.7	)%
September 30, 2015	6.7	%	3.6	%	(4.0	)%

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

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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 nine months of 2016 and 2015, the Company entered into certain covered call option transactions related to certain securities held by the Company. The Company uses these option transactions (rather than entering into other derivative interest rate contracts, such as interest rate floors) to economically hedge positions and compensate for net interest margin compression by increasing the total return associated with the related securities through fees generated from these options. Although the revenue received from these options is recorded as non-interest income rather than interest income, the increased return attributable to the related securities from these options contributes to the Company’s overall profitability. The Company’s exposure to interest rate risk may be impacted by these transactions. To mitigate this risk, the Company may acquire fixed rate term debt or use financial derivative instruments. There were no covered call options outstanding as of September 30, 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 the dispute. Wintrust Mortgage will be required to respond to the complaint after the Court's entry of a scheduling order, which has not yet occurred.

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 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. A hearing on the merits was held on September 12 - 15, 2016. On October 11, 2016, the FINRA panel issued a damages award against WHI for $1,537,500.

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 September 30, 2016. There is currently no authorization to repurchase shares of outstanding common stock.

Item 6: Exhibits:

(a) Exhibits

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

• Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 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:	November 8, 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-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: November 8, 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: November 8, 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 September 30, 2016, as filed with the Securities and Exchange Commission on November 8, 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:      November 8, 2016

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

Date:      November 8, 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.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
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		51,771,192

XML

Consolidated Statements Of Condition - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Assets
Cash and due from banks	$ 242,825	$ 271,454	$ 247,341
Federal funds sold and securities purchased under resale agreements	4,122	4,341	3,314
Interest bearing deposits with banks	816,104	607,782	701,106
Available-for-sale securities	1,650,096	1,716,388	2,214,281
Held-to-maturity securities, at amortized cost ($942.7 million and $878.1 million fair value at September 30, 2016 and December 31, 2015, respectively)	932,767	884,826	0
Trading account securities	1,092	448	3,312
Federal Home Loan Bank and Federal Reserve Bank stock	129,630	101,581	90,308
Brokerage customer receivables	25,511	27,631	28,293
Mortgage loans held-for-sale	559,634	388,038	347,005
Loans, net of unearned income, excluding covered loans	19,101,261	17,118,117	16,316,211
Covered loans	95,940	148,673	168,609
Total loans	19,197,201	17,266,790	16,484,820
Allowance for loan losses	(117,693)	(105,400)	(102,996)
Allowance for covered loan losses	(1,422)	(3,026)	(2,918)
Net loans	19,078,086	17,158,364	16,378,906
Premises and equipment, net	597,263	592,256	587,348
Lease investments, net	116,355	63,170	29,111
Accrued interest receivable and other assets	660,923	597,099	629,211
Trade date securities receivable	677	0	277,981
Goodwill	485,938	471,761	472,166
Other intangible assets	20,736	24,209	25,533
Total assets	25,321,759	22,909,348	22,035,216
Deposits:
Non-interest bearing	5,711,042	4,836,420	4,705,994
Interest bearing	15,436,613	13,803,214	13,522,475
Total deposits	21,147,655	18,639,634	18,228,469
Federal Home Loan Bank advances	419,632	853,431	443,955
Other borrowings	241,366	265,785	259,805
Subordinated notes	138,943	138,861	138,834
Junior subordinated debentures	253,566	268,566	268,566
Trade date securities payable	0	538	617
Accrued interest payable and other liabilities	446,123	390,259	359,234
Total liabilities	22,647,285	20,557,074	19,699,480
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 September 30, 2016, December 31, 2015 and September 30, 2015; 51,811,204 shares issued at September 30, 2016, 48,468,894 shares issued at December 31, 2015 and 48,422,294 shares issued at September 30, 2015	51,811	48,469	48,422
Surplus	1,356,759	1,190,988	1,187,407
Treasury stock, at cost, 96,521 shares at September 30, 2016, 85,615 shares at December 31, 2015, and 85,424 shares at September 30, 2015	(4,522)	(3,973)	(3,964)
Retained earnings	1,051,748	928,211	901,652
Accumulated other comprehensive loss	(32,579)	(62,708)	(49,093)
Total shareholders' equity	2,674,474	2,352,274	2,335,736
Total liabilities and shareholders' equity	25,321,759	22,909,348	22,035,216
Series C - $1,000 liquidation value; 126,257 shares issued and outstanding at September 30, 2016, 126,287 shares issued and outstanding at December 31, 2015, and 126,312 shares issued and outstanding at September 30, 2015
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	126,257	126,287	126,312
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at September 30, 2016, December 31, 2015 and September 30, 2015
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	$ 125,000	$ 125,000	$ 125,000

XML

Consolidated Statements Of Condition (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Held-to-maturity securities	$ 942,666	$ 878,111	$ 0
Preferred stock, no par value (usd per share)
Preferred stock, 20,000,000 shares authorized	20,000,000	20,000,000	20,000,000
Common stock, no par value (usd per share)
Common stock, $1.00 stated value (usd per share)	$ 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	51,811,204	48,468,894	48,422,294
Treasury stock, shares	96,521	85,615	85,424
Series C Preferred Stock
Preferred stock, liquidation value per share (usd per share)	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares outstanding	126,257	126,287	126,312
Series D Preferred Stock
Preferred stock, liquidation value per share (usd per share)	$ 25	$ 25	$ 25
Preferred stock, shares outstanding	5,000,000	5,000,000	5,000,000

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Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income
Interest and fees on loans	$ 190,189	$ 167,831	$ 541,846	$ 482,330
Interest bearing deposits with banks	1,156	372	2,695	993
Federal funds sold and securities purchased under resale agreements	1	1	3	4
Investment securities	15,496	16,130	49,084	44,601
Trading account securities	18	19	43	83
Federal Home Loan Bank and Federal Reserve Bank stock	1,094	821	3,143	2,375
Brokerage customer receivables	195	205	630	591
Total interest income	208,149	185,379	597,444	530,977
Interest expense
Interest on deposits	15,621	12,436	41,996	36,246
Interest on Federal Home Loan Bank advances	2,577	2,458	8,447	6,426
Interest on other borrowings	1,137	1,045	3,281	2,620
Interest on subordinated notes	1,778	1,776	5,332	5,328
Interest on junior subordinated debentures	2,400	2,124	6,973	6,034
Total interest expense	23,513	19,839	66,029	56,654
Net interest income	184,636	165,540	531,415	474,323
Provision for credit losses	9,571	8,322	26,734	23,883
Net interest income after provision for credit losses	175,065	157,218	504,681	450,440
Non-interest income
Wealth management	19,334	18,243	56,506	54,819
Mortgage banking	34,712	27,887	93,254	91,694
Service charges on deposit accounts	8,024	7,403	23,156	20,174
Gains (losses) on investment securities, net	3,305	(98)	6,070	402
Fees from covered call options	3,633	2,810	9,994	11,735
Trading (losses) gains, net	(432)	(135)	(916)	(452)
Operating lease income, net	4,459	613	11,270	755
Other	13,569	8,230	40,821	27,380
Total non-interest income	86,604	64,953	240,155	206,507
Non-interest expense
Salaries and employee benefits	103,718	97,749	300,423	282,300
Equipment	9,449	8,456	27,523	24,090
Operating lease equipment depreciation	3,605	431	9,040	547
Occupancy, net	12,767	12,066	36,658	35,818
Data processing	7,432	8,127	21,089	19,656
Advertising and marketing	7,365	6,237	18,085	16,550
Professional fees	5,508	4,100	14,986	13,838
Amortization of other intangible assets	1,085	1,350	3,631	3,297
FDIC insurance	3,686	3,035	11,339	9,069
OREO expense, net	1,436	(367)	3,344	1,885
Other	20,564	18,790	55,196	54,539
Total non-interest expense	176,615	159,974	501,314	461,589
Income before taxes	85,054	62,197	243,522	195,358
Income tax expense	31,939	23,842	91,255	74,120
Net income	53,115	38,355	152,267	121,238
Preferred stock dividends and discount accretion	3,628	4,079	10,884	7,240
Net income applicable to common shares	$ 49,487	$ 34,276	$ 141,383	$ 113,998
Net income per common share-Basic (usd per share)	$ 0.96	$ 0.71	$ 2.84	$ 2.39
Net income per common share-Diluted (usd per share)	0.92	0.69	2.72	2.29
Cash dividends declared per common share (usd per share)	$ 0.12	$ 0.11	$ 0.36	$ 0.33
Weighted average common shares outstanding	51,679	48,158	49,763	47,658
Dilutive potential common shares	4,047	4,049	3,931	4,141
Average common shares and dilutive common shares	55,726	52,207	53,694	51,799

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Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 53,115	$ 38,355	$ 152,267	$ 121,238
Unrealized gains (losses) on securities
Before tax	2,525	31,268	33,669	4,144
Tax effect	(993)	(12,273)	(13,225)	(1,645)
Net of tax	1,532	18,995	20,444	2,499
Reclassification of net gains (losses) included in net income
Before tax	3,305	(98)	6,070	402
Tax effect	(1,300)	38	(2,386)	(158)
Net of tax	2,005	(60)	3,684	244
Reclassification of amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	(3,781)	0	(11,038)	0
Tax effect	1,486	0	4,331	0
Net of tax	(2,295)	0	(6,707)	0
Net unrealized gains (losses) on securities	1,822	19,055	23,467	2,255
Unrealized gains (losses) on derivative instruments
Before tax	2,773	99	2,728	(247)
Tax effect	(1,090)	(39)	(1,072)	97
Net unrealized gains (losses) on derivative instruments	1,683	60	1,656	(150)
Foreign currency adjustment
Before tax	(2,237)	(8,682)	6,966	(18,900)
Tax effect	593	2,345	(1,960)	5,034
Net foreign currency adjustment	(1,644)	(6,337)	5,006	(13,866)
Total other comprehensive income (loss)	1,861	12,778	30,129	(11,761)
Comprehensive income	$ 54,976	$ 51,133	$ 182,396	$ 109,477

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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	121,238					121,238
Other comprehensive income (loss), net of tax	(11,761)						(11,761)
Cash dividends declared on common stock	(15,746)					(15,746)
Dividends on preferred stock	(7,240)					(7,240)
Stock-based compensation	7,817			7,817
Issuance of stock	120,842	125,000		(4,158)
Conversion of Series C preferred stock to common stock	0	(155)	4	151
Common stock issued for:
Acquisitions	38,723		811	37,912
Exercise of stock options and warrants	8,575		564	8,141	(130)
Restricted stock awards	196		99	382	(285)
Employee stock purchase plan	2,040		43	1,997
Director compensation plan	1,230		20	1,210
Balance at Sep. 30, 2015	2,335,736	251,312	48,422	1,187,407	(3,964)	901,652	(49,093)
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	152,267					152,267
Other comprehensive income (loss), net of tax	30,129						30,129
Cash dividends declared on common stock	(17,846)					(17,846)
Dividends on preferred stock	(10,884)					(10,884)
Stock-based compensation	6,778			6,778
Issuance of stock	152,823		3,000	149,823
Conversion of Series C preferred stock to common stock	0	(30)	1	29
Common stock issued for:
Exercise of stock options and warrants	5,773		185	5,965	(377)
Restricted stock awards	37		88	121	(172)
Employee stock purchase plan	1,933		43	1,890
Director compensation plan	1,190		25	1,165
Balance at Sep. 30, 2016	$ 2,674,474	$ 251,257	$ 51,811	$ 1,356,759	$ (4,522)	$ 1,051,748	$ (32,579)

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Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities:
Net income	$ 152,267	$ 121,238
Adjustments to reconcile net income to net cash used for operating activities
Provision for credit losses	26,734	23,883
Depreciation, amortization and accretion, net	38,798	28,017
Stock-based compensation expense	6,778	7,817
Excess tax benefits from stock-based compensation arrangements	(399)	(660)
Net amortization of premium on securities	3,728	2,576
Accretion of discount on loans	(23,416)	(25,061)
Mortgage servicing rights fair value change, net	(4,810)	641
Originations and purchases of mortgage loans held-for-sale	(3,208,468)	(3,094,901)
Proceeds from sales of mortgage loans held-for-sale	3,111,318	3,182,623
Bank owned life insurance (BOLI), net of claims	(2,613)	(1,683)
Increase in trading securities, net	(644)	(2,106)
Net decrease (increase) in brokerage customer receivables	2,120	(4,072)
Gains on mortgage loans sold	(74,446)	(83,437)
Gains on investment securities, net	(6,070)	(402)
Gains on early extinguishment of debt	(4,305)	0
(Gains) losses on sales of premises and equipment, net	(89)	512
Net losses (gains) on sales and fair value adjustments of other real estate owned	935	(585)
Increase in accrued interest receivable and other assets, net	(131,504)	(113,805)
Increase (decrease) in accrued interest payable and other liabilities, net	31,082	(28,717)
Net Cash (Used for) Provided by Operating Activities	(83,004)	11,878
Investing Activities:
Proceeds from maturities of available-for-sale securities	1,128,428	397,832
Proceeds from maturities of held-to-maturity securities	502	0
Proceeds from sales and calls of available-for-sale securities	2,186,662	1,216,860
Proceeds from calls of held-to-maturity securities	423,866	0
Purchases of available-for-sale securities	(3,169,020)	(1,584,282)
Purchases of held-to-maturity securities	(472,803)	0
(Purchase) redemption of Federal Home Loan Bank and Federal Reserve Bank stock, net	(28,049)	1,274
Net cash paid in business combinations	(578,315)	(15,428)
Proceeds from sales of other real estate owned	29,223	34,936
Proceeds received from the FDIC related to reimbursements on covered assets	2,124	1,697
Net (increase) decrease in interest bearing deposits with banks	(204,085)	438,072
Net increase in loans	(1,303,218)	(1,286,736)
Redemption of BOLI	659	2,701
Purchases of premises and equipment, net	(28,276)	(29,375)
Net Cash Used for Investing Activities	(2,012,302)	(822,449)
Financing Activities:
Increase in deposit accounts	2,408,216	970,090
(Decrease) increase in other borrowings, net	(24,545)	38,775
Decrease in Federal Home Loan Bank advances, net	(440,257)	(293,360)
Proceeds from the issuance of common stock, net	152,823	0
Proceeds from the issuance of preferred stock, net	0	120,842
Redemption of junior subordinated debentures, net	(10,695)	0
Excess tax benefits from stock-based compensation arrangements	399	660
Issuance of common shares resulting from the exercise of stock options and the employee stock purchase plan	9,796	14,413
Common stock repurchases	(549)	(415)
Dividends paid	(28,730)	(20,486)
Net Cash Provided by Financing Activities	2,066,458	830,519
Net (Decrease) Increase in Cash and Cash Equivalents	(28,848)	19,948
Cash and Cash Equivalents at Beginning of Period	275,795	230,707
Cash and Cash Equivalents at End of Period	$ 246,947	$ 250,655

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Basis of Presentation

9 Months Ended

Sep. 30, 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 and nine-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

9 Months Ended

Sep. 30, 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.

The FASB has continued to issue various Updates to clarify and improve specific areas of ASU No. 2014-09. 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. 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. In May 2016, the FASB issued ASU No. 2016-11, "Revenue Recognition (Topic 605) and Derivative and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting," to remove certain areas of SEC Staff Guidance from those specific Topics. Additionally, in May 2016, the FASB issued ASU 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients," to clarify specific aspects of implementation, including the collectibility criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications and completed contracts at transition. 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.

In October 2016, the FASB issued ASU No. 2016-17, "Consolidation (Topic 810): Interest Held through Related Parties That Are under Common Control," to amend guidance from ASU No. 2015-02 regarding how a reporting entity treats indirect interests in a variable interest entity ("VIE") held through related parties under common control when determining whether the reporting entity is the primary beneficiary of such VIE. 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 retrospective approach. The Company does not expect this guidance to 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 September 30, 2015, the Company reclassified as a direct reduction to the related debt balance $7.8 million and $8.7 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.

Allowance for Credit Losses

In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments," to replace the current incurred loss methodology for recognizing credit losses, which delays recognition until it is probable a loss has been incurred, with a methodology that reflects an estimate of all expected credit losses and considers additional reasonable and supportable forecasted information when determining credit loss estimates. This impacts the calculation of the allowance for credit losses for all financial assets measured under the amortized cost basis, including purchased credit impaired ("PCI") loans at the time of and subsequent to acquisition. Additionally, credit losses related to available-for-sale debt securities would be recorded through the allowance for credit losses and not as a direct adjustment to the amortized cost of the securities. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements as well as the impact on current systems and processes.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force)," to clarify the presentation of specific types of cash flow receipts and payments, including the payment of debt prepayment or debt extinguishment costs, contingent consideration cash payments paid subsequent to the acquisition date and proceeds from settlement of BOLI policies. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a retrospective approach, if practicable. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Income Taxes

In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory," to improve the accounting for intra-entity transfers of assets other than inventory. This ASU allows the recognition of current and deferred income taxes for such transfers prior to the subsequent sale of the transferred assets to an outside party. Initial recognition of current and deferred income taxes is currently prohibited for intra-entity transfers of assets other than inventory. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach through cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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Business Combinations

9 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Business Combinations

Business Combinations

Non-FDIC Assisted Bank Acquisitions

On August 19, 2016, the Company, through its wholly-owned subsidiary Lake Forest Bank & Trust Company ("Lake Forest Bank"), acquired approximately $560.9 million in performing loans and related relationships from an affiliate of GE Capital Franchise Finance. The loans are to franchise operators (primarily quick service restaurant concepts) in the Midwest and in the Western portion of the United States.

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 $131.0 million, including approximately $67.4 million of loans, and assumed deposits with a fair value of approximately $100.2 million. Additionally, the Company recorded goodwill of $11.5 million on the acquisition.

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 or other liability 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 or reduce the FDIC indemnification liability. 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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Balance at beginning of period	$	(11,729	)	$	3,429		$	(6,100	)	$	11,846
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	21			1,039			752			3,548
Accretion (amortization)	4			(718		)	(189		)	(3,184		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,537		)	(5,236		)	(10,284		)	(13,546		)
Payments received from the FDIC	(1,704		)	(1,547		)	(2,124		)	(1,697		)
Balance at end of period	$	(17,945	)	$	(3,033	)	$	(17,945	)	$	(3,033	)

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

9 Months Ended

Sep. 30, 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

9 Months Ended

Sep. 30, 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:

	September 30, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	30,017	$	19	$	—		$	30,036
U.S. Government agencies	93,561		163		(41		)	93,683
Municipal	106,033		3,395		(147		)	109,281
Corporate notes:
Financial issuers	65,215		299		(1,311		)	64,203
Other	1,000		—		—			1,000
Mortgage-backed: (1)
Mortgage-backed securities	1,257,070		7,958		(54		)	1,264,974
Collateralized mortgage obligations	35,935		304		(102		)	36,137
Equity securities	48,568		2,998		(784		)	50,782
Total available-for-sale securities	$	1,637,399	$	15,136	$	(2,439	)	$	1,650,096
Held-to-maturity securities
U.S. Government agencies	$	729,417	$	7,577	$	(2,879	)	$	734,115
Municipal	203,350		5,515		(314		)	208,551
Total held-to-maturity securities	$	932,767	$	13,092	$	(3,193	)	$	942,666

	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

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	288,185	$	101	$	(2,364	)	$	285,922
U.S. Government agencies	657,297		2,726		(15,000		)	645,023
Municipal	294,073		5,354		(2,085		)	297,342
Corporate notes:
Financial issuers	114,976		1,656		(1,216		)	115,416
Other	1,525		6		(2		)	1,529
Mortgage-backed: (1)
Mortgage-backed securities	778,240		4,974		(10,913		)	772,301
Collateralized mortgage obligations	42,724		343		(323		)	42,744
Equity securities	49,356		4,993		(345		)	54,004
Total available-for-sale securities	$	2,226,376	$	20,153	$	(32,248	)	$	2,214,281
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 nine months 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 September 30, 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	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agencies	35,173		(41		)	—		—			35,173		(41		)
Municipal	13,062		(45		)	7,766		(102		)	20,828		(147		)
Corporate notes:
Financial issuers	10,000		(1		)	34,650		(1,310		)	44,650		(1,311		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	1,017		(22		)	4,019		(32		)	5,036		(54		)
Collateralized mortgage obligations	1,255		(2		)	7,499		(100		)	8,754		(102		)
Equity securities	16,550		(481		)	8,787		(303		)	25,337		(784		)
Total available-for-sale securities	$	77,057	$	(592	)	$	62,721	$	(1,847	)	$	139,778	$	(2,439	)
Held-to-maturity securities
U.S. Government agencies	$	240,400	$	(2,879	)	$	—	$	—		$	240,400	$	(2,879	)
Municipal	11,925		(204		)	9,239		(110		)	21,164		(314		)
Total held-to-maturity securities	$	252,325	$	(3,083	)	$	9,239	$	(110	)	$	261,564	$	(3,193	)

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 September 30, 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 sale or call of investment securities:

	Three months ended September 30,						Nine months ended September 30,
(Dollars in thousands)	2016			2015			2016			2015
Realized gains	$	3,429		$	87		$	7,466		$	654
Realized losses	(124		)	(185		)	(1,396		)	(252		)
Net realized gains (losses)	$	3,305		$	(98	)	$	6,070		$	402
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	3,305		$	(98	)	$	6,070		$	402
Proceeds from sales and calls of available-for-sale securities	$	1,114,666		$	82,827		$	2,186,662		$	1,216,860
Proceeds from calls of held-to-maturity securities	141,885			—			423,866			—

The amortized cost and fair value of securities as of September 30, 2016, December 31, 2015 and September 30, 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:

	September 30, 2016				December 31, 2015				September 30, 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	$	115,227	$	115,487	$	160,856	$	160,756	$	164,374	$	164,429
Due in one to five years	141,364		141,368		166,550		166,468		186,199		186,592
Due in five to ten years	28,696		31,319		228,652		225,699		343,468		342,271
Due after ten years	10,539		10,029		13,753		14,182		662,015		651,940
Mortgage-backed	1,293,005		1,301,111		1,110,101		1,092,597		820,964		815,045
Equity securities	48,568		50,782		51,380		56,686		49,356		54,004
Total available-for-sale securities	$	1,637,399	$	1,650,096	$	1,731,292	$	1,716,388	$	2,226,376	$	2,214,281
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	25,927		26,023		19,208		19,156		—		—
Due in five to ten years	64,835		65,842		96,454		96,091		—		—
Due after ten years	842,005		850,801		769,164		762,864		—		—
Total held-to-maturity securities	$	932,767	$	942,666	$	884,826	$	878,111	$	—	$	—

Securities having a fair value of $1.4 billion at September 30, 2016 as well as securities having a fair value of $1.2 billion and $1.3 billion at December 31, 2015 and September 30, 2015, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank ("FHLB") advances, securities sold under repurchase agreements and derivatives. At September 30, 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

9 Months Ended

Sep. 30, 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:

	September 30,			December 31,			September 30,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	5,951,544		$	4,713,909		$	4,400,185
Commercial real estate	5,908,684			5,529,289			5,307,566
Home equity	742,868			784,675			797,465
Residential real estate	663,598			607,451			571,743
Premium finance receivables—commercial	2,430,233			2,374,921			2,407,075
Premium finance receivables—life insurance	3,283,359			2,961,496			2,700,275
Consumer and other	120,975			146,376			131,902
Total loans, net of unearned income, excluding covered loans	$	19,101,261		$	17,118,117		$	16,316,211
Covered loans	95,940			148,673			168,609
Total loans	$	19,197,201		$	17,266,790		$	16,484,820
Mix:
Commercial	31		%	27		%	27		%
Commercial real estate	31			32			32
Home equity	4			5			5
Residential real estate	3			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	100		%	99		%	99		%
Covered loans	—			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 $64.4 million at September 30, 2016, $56.7 million at December 31, 2015 and $53.4 million at September 30, 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 $873,000 at September 30, 2016, $(9.2) million at December 31, 2015 and $(18.8) million at September 30, 2015. The net credit balance at December 31, 2015 and September 30, 2015, is primarily the result of purchase accounting adjustments related to acquisitions in 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 the Company's previous acquisitions, the Company 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:

	September 30, 2016				December 31, 2015
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Bank acquisitions	$	278,862	$	233,340	$	326,470	$	271,260
Life insurance premium finance loans acquisition	266,618		262,887		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 Bank
Contractually required payments including interest	$	20,091
Less: Nonaccretable difference	4,009
Cash flows expected to be collected (1)	$	16,082
Less: Accretable yield	1,082
Fair value of PCI loans acquired	$	15,000

(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 September 30, 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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Accretable yield, beginning balance	$	55,630		$	63,643		$	63,902		$	79,102
Acquisitions	—			10,407			1,082			11,305
Accretable yield amortized to interest income	(6,449		)	(5,939		)	(17,105		)	(18,359		)
Accretable yield amortized to indemnification asset/liability (1)	(1,744		)	(3,280		)	(5,539		)	(10,945		)
Reclassification from non-accretable difference (2)	5,370			2,298			12,099			5,154
Increases (decreases) in interest cash flows due to payments and changes in interest rates	170			(610		)	(1,462		)	262
Accretable yield, ending balance (3)	$	52,977		$	66,519		$	52,977		$	66,519

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

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

(3) As of September 30, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $1.5 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 $6.4 million and $5.9 million in the third quarter of 2016 and 2015, respectively. For the nine months ended Septemebr 30, 2016 and 2015, the Company recorded accretion to interest income of $17.1 million and $18.4 million, 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

9 Months Ended

Sep. 30, 2016

Receivables [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 September 30, 2016, December 31, 2015 and September 30, 2015:

As of September 30, 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	$	15,809	$	—	$	7,324	$	8,987	$	3,573,396	$	3,605,516
Franchise	—		—		458		1,626		872,661		874,745
Mortgage warehouse lines of credit	—		—		—		—		309,632		309,632
Asset-based lending	234		—		3,772		3,741		837,972		845,719
Leases	375		—		239		—		299,339		299,953
PCI - commercial (1)	—		1,783		—		1,036		13,160		15,979
Total commercial	16,418		1,783		11,793		15,390		5,906,160		5,951,544
Commercial real estate:
Construction	400		—		—		3,775		447,302		451,477
Land	1,208		—		787		300		105,406		107,701
Office	3,609		—		6,457		8,062		865,954		884,082
Industrial	9,967		—		940		2,961		753,636		767,504
Retail	909		—		1,340		8,723		884,369		895,341
Multi-family	90		—		3,051		2,169		789,645		794,955
Mixed use and other	6,442		—		2,157		5,184		1,837,724		1,851,507
PCI - commercial real estate (1)	—		21,433		1,509		4,066		129,109		156,117
Total commercial real estate	22,625		21,433		16,241		35,240		5,813,145		5,908,684
Home equity	9,309		—		1,728		3,842		727,989		742,868
Residential real estate, including PCI	12,205		1,496		2,232		1,088		646,577		663,598
Premium finance receivables
Commercial insurance loans	14,214		7,754		6,968		10,291		2,391,006		2,430,233
Life insurance loans	—		—		9,960		3,717		3,006,795		3,020,472
PCI - life insurance loans (1)	—		—		—		—		262,887		262,887
Consumer and other, including PCI	543		124		204		871		119,233		120,975
Total loans, net of unearned income, excluding covered loans	$	75,314	$	32,590	$	49,126	$	70,439	$	18,873,792	$	19,101,261
Covered loans	2,331		4,806		1,545		2,456		84,802		95,940
Total loans, net of unearned income	$	77,645	$	37,396	$	50,671	$	72,895	$	18,958,594	$	19,197,201

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

As of December 31, 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

As of September 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial, industrial and other	$	12,006	$	—	$	2,775	$	9,709	$	2,985,985	$	3,010,475
Franchise	—		—		80		376		221,545		222,001
Mortgage warehouse lines of credit	—		—		—		—		136,614		136,614
Asset-based lending	12		—		1,313		247		800,798		802,370
Leases	—		—		—		89		205,697		205,786
PCI - commercial (1)	—		217		—		39		22,683		22,939
Total commercial	12,018		217		4,168		10,460		4,373,322		4,400,185
Commercial real estate:
Construction	31		—		—		3,535		343,668		347,234
Land	1,756		—		—		2,207		75,113		79,076
Office	4,045		—		10,861		2,362		773,043		790,311
Industrial	11,637		—		786		897		622,804		636,124
Retail	2,022		—		1,536		821		781,463		785,842
Multi-family	1,525		—		512		744		684,878		687,659
Mixed use and other	7,601		—		2,340		12,871		1,797,516		1,820,328
PCI - commercial real estate (1)	—		13,547		299		583		146,563		160,992
Total commercial real estate	28,617		13,547		16,334		24,020		5,225,048		5,307,566
Home equity	8,365		—		811		4,124		784,165		797,465
Residential real estate, including PCI	14,557		424		1,340		1,606		553,816		571,743
Premium finance receivables
Commercial insurance loans	13,751		8,231		6,664		13,659		2,364,770		2,407,075
Life insurance loans	—		—		9,656		2,627		2,314,406		2,326,689
PCI - life insurance loans (1)	—		—		—		—		373,586		373,586
Consumer and other, including PCI	297		140		56		935		130,474		131,902
Total loans, net of unearned income, excluding covered loans	$	77,605	$	22,559	$	39,029	$	57,431	$	16,119,587	$	16,316,211
Covered loans	6,540		7,626		1,392		802		152,249		168,609
Total loans, net of unearned income	$	84,145	$	30,185	$	40,421	$	58,233	$	16,271,836	$	16,484,820

(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 September 30, 2016, December 31, 2015 and September 30, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,589,707	$	3,245,818	$	2,998,469	$	15,809	$	12,710	$	12,006	$	3,605,516	$	3,258,528	$	3,010,475
Franchise	874,745		245,228		222,001		—		—		—		874,745		245,228		222,001
Mortgage warehouse lines of credit	309,632		222,806		136,614		—		—		—		309,632		222,806		136,614
Asset-based lending	845,485		742,676		802,358		234		8		12		845,719		742,684		802,370
Leases	299,578		225,539		205,786		375		535		—		299,953		226,074		205,786
PCI - commercial (1)	15,979		18,589		22,939		—		—		—		15,979		18,589		22,939
Total commercial	5,935,126		4,700,656		4,388,167		16,418		13,253		12,018		5,951,544		4,713,909		4,400,185
Commercial real estate
Construction	451,077		358,354		347,203		400		306		31		451,477		358,660		347,234
Land	106,493		76,666		77,320		1,208		1,751		1,756		107,701		78,417		79,076
Office	880,473		858,382		786,266		3,609		4,619		4,045		884,082		863,001		790,311
Industrial	757,537		718,084		624,487		9,967		9,564		11,637		767,504		727,648		636,124
Retail	894,432		866,639		783,820		909		1,760		2,022		895,341		868,399		785,842
Multi-family	794,865		740,395		686,134		90		1,954		1,525		794,955		742,349		687,659
Mixed use and other	1,845,065		1,726,125		1,812,727		6,442		6,691		7,601		1,851,507		1,732,816		1,820,328
PCI - commercial real estate(1)	156,117		157,999		160,992		—		—		—		156,117		157,999		160,992
Total commercial real estate	5,886,059		5,502,644		5,278,949		22,625		26,645		28,617		5,908,684		5,529,289		5,307,566
Home equity	733,559		777,827		789,100		9,309		6,848		8,365		742,868		784,675		797,465
Residential real estate, including PCI	651,393		595,408		557,186		12,205		12,043		14,557		663,598		607,451		571,743
Premium finance receivables
Commercial insurance loans	2,408,265		2,350,066		2,385,093		21,968		24,855		21,982		2,430,233		2,374,921		2,407,075
Life insurance loans	3,020,472		2,593,204		2,326,689		—		—		—		3,020,472		2,593,204		2,326,689
PCI - life insurance loans (1)	262,887		368,292		373,586		—		—		—		262,887		368,292		373,586
Consumer and other, including PCI	120,372		145,963		131,465		603		413		437		120,975		146,376		131,902
Total loans, net of unearned income, excluding covered loans	$	19,018,133	$	17,034,060	$	16,230,235	$	83,128	$	84,057	$	85,976	$	19,101,261	$	17,118,117	$	16,316,211

(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 and nine months endedSeptember 30, 2016 and 2015 is as follows:

Three months ended September 30, 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	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Other adjustments	(35		)	(57		)	—			(10		)	(10		)	—			(112		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(79		)	—			—			—			—			(579		)
Charge-offs	(3,469		)	(382		)	(574		)	(134		)	(1,959		)	(389		)	(6,907		)
Recoveries	176			364			65			61			456			72			1,194
Provision for credit losses	5,212			1,678			810			781			974			286			9,741
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341
Individually evaluated for impairment	$	2,554		$	2,491		$	964		$	1,166		$	—		$	192		$	7,367
Collectively evaluated for impairment	40,252			46,983			10,720			4,867			7,275			1,053			111,150
Loans acquired with deteriorated credit quality	732			22			—			70			—			—			824
Loans at period end
Individually evaluated for impairment	$	19,133		$	45,290		$	9,309		$	17,040		$	—		$	602		$	91,374
Collectively evaluated for impairment	5,916,432			5,707,277			733,559			642,633			5,450,705			119,162			18,569,768
Loans acquired with deteriorated credit quality	15,979			156,117			—			3,925			262,887			1,211			440,119

Three months ended September 30, 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	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Other adjustments	(12		)	(85		)	—			(6		)	(50		)	—			(153		)
Reclassification from allowance for unfunded lending-related commitments	—			(42		)	—			—			—			—			(42		)
Charge-offs	(964		)	(1,948		)	(1,116		)	(1,138		)	(1,595		)	(116		)	(6,877		)
Recoveries	462			213			42			136			294			52			1,199
Provision for credit losses	1,604			3,725			1,009			575			1,511			241			8,665
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922
Individually evaluated for impairment	$	1,881		$	5,832		$	239		$	544		$	—		$	30		$	8,526
Collectively evaluated for impairment	31,943			38,361			11,984			4,042			7,081			1,024			94,435
Loans acquired with deteriorated credit quality	166			794			—			—			—			1			961
Loans at period end
Individually evaluated for impairment	$	18,211		$	68,947		$	8,365		$	18,267		$	—		$	430		$	114,220
Collectively evaluated for impairment	4,359,035			5,077,627			789,100			549,794			4,733,764			131,472			15,640,792
Loans acquired with deteriorated credit quality	22,939			160,992			—			3,682			373,586			—			561,199

Nine months ended September 30, 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	(103		)	(203		)	—			(49		)	31			—			(324		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(200		)	—			—			—			—			(700		)
Charge-offs	(4,861		)	(1,555		)	(3,672		)	(1,320		)	(6,350		)	(720		)	(18,478		)
Recoveries	926			1,029			184			204			1,876			143			4,362
Provision for credit losses	11,441			5,519			3,160			2,534			4,485			294			27,433
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341

Nine months ended September 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(42		)	(346		)	—			(14		)	(92		)	—			(494		)
Reclassification from allowance for unfunded lending-related commitments	—			(151		)	—			—			—			—			(151		)
Charge-offs	(2,884		)	(3,809		)	(3,547		)	(2,692		)	(4,384		)	(342		)	(17,658		)
Recoveries	1,117			2,349			129			228			1,081			139			5,043
Provision for credit losses	4,100			10,485			3,141			2,846			3,963			16			24,551
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922

A summary of activity in the allowance for covered loan losses for the three and nine months endedSeptember 30, 2016 and 2015 is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(Dollars in thousands)	2016			2015			2016			2015
Balance at beginning of period	$	2,412		$	2,215		$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(847		)	(1,716		)	(3,495		)	(3,339		)
Benefit attributable to FDIC loss share agreements	677			1,373			2,796			2,671
Net provision for covered loan losses	(170		)	(343		)	(699		)	(668		)
Increase/decrease in FDIC indemnification liability/asset	(677		)	(1,373		)	(2,796		)	(2,671		)
Loans charged-off	(918		)	(287		)	(1,291		)	(664		)
Recoveries of loans charged-off	775			2,706			3,182			4,790
Net (charge-offs) recoveries	(143		)	2,419			1,891			4,126
Balance at end of period	$	1,422		$	2,918		$	1,422		$	2,918

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 covered 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:

	September 30,		December 31,		September 30,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	39,022	$	49,961	$	51,113
Impaired loans with no allowance for loan loss required	51,518		51,294		61,914
Total impaired loans (2)	$	90,540	$	101,255	$	113,027
Allowance for loan losses related to impaired loans	$	6,836	$	6,380	$	8,483
TDRs	$	44,276	$	51,853	$	59,320

(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 Nine Months Ended
	As of September 30, 2016						September 30, 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	$	5,426	$	5,434	$	1,887	$	5,487	$	212
Asset-based lending	234		235		44		235		7
Leases	375		375		116		388		14
Commercial real estate
Construction	—		—		—		—		—
Land	2,620		2,620		44		2,670		80
Office	1,697		2,361		182		1,722		79
Industrial	6,855		7,338		1,388		7,069		284
Retail	6,605		6,623		240		6,668		160
Multi-family	1,266		1,266		8		1,134		29
Mixed use and other	5,437		5,511		605		5,452		198
Home equity	2,373		2,457		964		2,404		63
Residential real estate	5,942		6,428		1,166		5,807		190
Consumer and other	192		192		192		194		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,669	$	16,261	$	—	$	14,745	$	717
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	1,995		1,995		—		2,273		94
Land	3,864		8,088		—		4,316		408
Office	4,980		6,243		—		4,978		260
Industrial	3,508		3,827		—		3,574		200
Retail	805		913		—		936		36
Multi-family	89		174		—		109		5
Mixed use and other	5,164		5,712		—		5,300		236
Home equity	6,936		9,108		—		7,736		320
Residential real estate	11,098		13,077		—		11,125		445
Consumer and other	410		520		—		428		21
Total impaired loans, net of unearned income	$	90,540	$	106,758	$	6,836	$	94,750	$	4,066

							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	—		—		—		—		—
Leases	—		—		—		—		—
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
Leases	—		—		—		—		—
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 Nine Months Ended
	As of September 30, 2015						September 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,580	$	9,118	$	1,865	$	8,906	$	381
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	3,559		7,309		31		3,713		362
Office	6,765		7,724		2,162		7,113		263
Industrial	10,049		10,542		1,550		10,662		421
Retail	8,899		9,596		381		8,906		306
Multi-family	1,199		1,622		203		1,210		60
Mixed use and other	7,162		7,345		1,501		7,250		224
Home equity	547		762		239		672		25
Residential real estate	4,225		4,326		521		4,280		130
Consumer and other	128		128		30		139		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	9,142	$	11,997	$	—	$	9,716	$	539
Asset-based lending	12		1,573		—		4		66
Leases	—		—		—		—		—
Commercial real estate
Construction	2,054		2,055		—		2,034		73
Land	4,114		4,874		—		4,232		130
Office	4,171		5,120		—		4,243		194
Industrial	2,255		2,448		—		2,304		141
Retail	3,140		3,302		—		3,305		104
Multi-family	1,330		1,635		—		1,522		50
Mixed use and other	13,788		16,576		—		14,668		563
Home equity	7,818		8,406		—		7,065		229
Residential real estate	13,788		15,932		—		14,387		449
Consumer and other	302		398		—		311		15
Total impaired loans, net of unearned income	$	113,027	$	132,788	$	8,483	$	116,642	$	4,731

TDRs

At September 30, 2016, the Company had $44.3 million in loans modified in TDRs. The $44.3 million in TDRs represents 89 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 September 30, 2016 and approximately $2.8 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 both the three months ended September 30, 2016 and 2015, the Company recorded $98,000 interest income representing this decrease in impairment. For the nine months endedSeptember 30, 2016 and 2015, the Company recorded $323,000 and $385,000, respectively, in interest income.

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 September 30, 2016, the Company had $11.7 million of foreclosed residential real estate properties included within OREO.

The tables below present a summary of the post-modification balance of loans restructured during the three and nine months endedSeptember 30, 2016 and 2015, respectively, which represent TDRs:

Three months ended September 30, 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	$	28	1	$	28	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	43		1	43		1	43		—	—		—	—
Total loans	2	$	71	2	$	71	1	$	43	—	$	—	—	$	—

Three months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	222		1	222		1	222		—	—		—	—
Total loans	1	$	222	1	$	222	1	$	222	—	$	—	—	$	—

(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 September 30, 2016, two loans totaling $71,000 were determined to be TDRs, compared to one loan totaling $222,000 in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately 22 months during the quarter ended September 30, 2016 compared to 214 months for the quarter ended September 30, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 150 basis points and 338 basis points during the three months ending September 30, 2016 and 2015, respectively. Additionally, no principal balances were forgiven in the third quarter of 2016 or 2015.

Nine months ended September 30, 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	3	$	345	3	$	345	—	$	—	—	$	—	1	$	275
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	3	583		2	423		3	583		1	380		—	—
Total loans	15	$	9,449	14	$	9,289	6	$	7,779	1	$	380	1	$	275

(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.

Nine months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office							—	—					—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	9	1,664		9	1,664		5	674		1	50		—	—
Total loans	10	$	1,833	10	$	1,833	5	$	674	2	$	219	—	$	—

(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 nine months ended September 30, 2016, 15 loans totaling $9.4 million were determined to be TDRs, compared to ten loans totaling $1.8 million in the same period of 2015. Of these loans extended at below market terms, the weighted average extension had a term of approximately six months during the nine months ended September 30, 2016 compared to 49 months for the nine months ended September 30, 2015. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 30 basis points and 358 basis points for the year-to-date periods September 30, 2016 and 2015, respectively. Interest-only payment terms were approximately six months during the nine months ending September 30, 2016 compared to 28 months during the same period of 2015. Additionally, $300,000 of principal balances were forgiven in the first nine months of 2016 compared to no balances forgiven during the same period of 2015.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended September 30, 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 September 30, 2016			Three Months Ended September 30, 2016			Nine Months Ended September 30, 2016
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	3	$	345	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		1	450
Industrial	6	7,921		3	725		3	725
Mixed use and other	4	351		1	16		3	217
Residential real estate and other	3	583		—	—		—	—
Total loans	17	$	9,650	5	$	1,191	7	$	1,392

(Dollars in thousands)	As of September 30, 2015			Three Months Ended September 30, 2015			Nine Months Ended September 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Office	1	720		—	—		—	—
Industrial	2	854		1	685		1	685
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	11	2,613		2	131		3	345
Total loans	15	$	5,648	3	$	816	4	$	1,030

(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

9 Months Ended

Sep. 30, 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		September 30, 2016
Community banking	$	401,612	$	11,470	$	—	$	1,517	$	414,599
Specialty finance	38,035		—		—		1,190		39,225
Wealth management	32,114		—		—		—		32,114
Total	$	471,761	$	11,470	$	—	$	2,707	$	485,938

The community banking segment's goodwill increased $13.0 million in the first nine months of 2016 primarily as a result of the acquisition of Generations. The specialty finance segment's goodwill increased $1.2 million in the first nine months of 2016 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2016, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not than an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2016. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of September 30, 2016, the Company identified no such indicators of goodwill impairment.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of September 30, 2016 is as follows:

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	34,998		$	34,841		$	34,840
Accumulated amortization	(20,598		)	(17,382		)	(16,195		)
Net carrying amount	$	14,400		$	17,459		$	18,645
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,129		)	(1,052		)	(1,027		)
Net carrying amount	$	671		$	748		$	773
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,275		)	(1,938		)	(1,825		)
Net carrying amount	$	5,665		$	6,002		$	6,115
Total other intangible assets, net	$	20,736		$	24,209		$	25,533

Estimated amortization
Actual in nine months ended September 30, 2016	$	3,631
Estimated remaining in 2016	1,057
Estimated—2017	3,902
Estimated—2018	3,395
Estimated—2019	2,875
Estimated—2020	2,334

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 $3.6 million and $3.3 million for the nine months ended September 30, 2016 and 2015, respectively.

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Deposits

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Deposits

Deposits

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

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Balance:
Non-interest bearing	$	5,711,042		$	4,836,420		$	4,705,994
NOW and interest bearing demand deposits	2,552,611			2,390,217			2,231,258
Wealth management deposits	2,283,233			1,643,653			1,469,920
Money market	4,421,631			4,041,300			4,001,518
Savings	1,977,661			1,723,367			1,684,007
Time certificates of deposit	4,201,477			4,004,677			4,135,772
Total deposits	$	21,147,655		$	18,639,634		$	18,228,469
Mix:
Non-interest bearing	27		%	26		%	26		%
NOW and interest bearing demand deposits	12			13			12
Wealth management deposits	11			9			8
Money market	21			22			22
Savings	9			9			9
Time certificates of deposit	20			21			23
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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FHLB Advances, Other Borrowings and Subordinated Notes

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

FHLB Advances, Other Borrowings and Subordinated Notes

FHLB Advances, Other Borrowings and Subordinated Notes

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

(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015
FHLB advances	$	419,632	$	853,431	$	443,955
Other borrowings:
Notes payable	56,191		67,429		71,250
Short-term borrowings	33,173		63,887		57,590
Other	18,360		18,965		18,332
Secured borrowings	133,642		115,504		112,633
Total other borrowings	241,366		265,785		259,805
Subordinated notes	138,943		138,861		138,834
Total FHLB advances, other borrowings and subordinated notes	$	799,941	$	1,258,077	$	842,594

FHLB Advances

FHLB 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 September 30, 2016, notes payable represented a $56.2 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 September 30, 2016, the Company had a balance of $56.2 million compared to $67.4 million at December 31, 2015 and $71.3 million at September 30, 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 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. Beginning September 30, 2015, the Company was required to make straight-line quarterly amortizing payments on the Term Facility. At September 30, 2016, December 31, 2015 and September 30, 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 September 30, 2016, 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 $33.2 million at September 30, 2016 compared to $63.9 million at December 31, 2015 and $57.6 million at September 30, 2015. At September 30, 2016, December 31, 2015 and September 30, 2015, securities sold under repurchase agreements represent $33.2 million, $58.9 million and $57.6 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of September 30, 2016, the Company had pledged securities related to its customer balances in sweep accounts of $44.1 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 September 30, 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
Corporate notes:
Financial issuers	$	3,945
Mortgage-backed securities	19,853
Held-to-maturity securities pledged
U.S. Government agencies	20,296
Total collateral pledged	$	44,094
Excess collateral	10,921
Securities sold under repurchase agreements	$	33,173

Other Borrowings

Other borrowings at September 30, 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 September 30, 2016, the Fixed-Rate Promissory Note had a balance of $17.8 million compared to a balance of $18.2 million and $18.3 million at December 31, 2015 and September 30, 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 September 30, 2016 and December 31, 2015, the non-recourse notes related to certain capital leases totaled $519,000 and $732,000, respectively.

Secured Borrowings

Secured borrowings at September 30, 2016 primarily represents transactions to sell an undivided co-ownership interest in all receivables owed to the Company's subsidiary, FIFC Canada. In December 2014, FIFC Canada sold such interest 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 September 30, 2016, the translated balance of the secured borrowing totaled $121.9 million compared to $115.5 million at December 31, 2015 and $112.6 million at September 30, 2015. Additionally, the interest rate under the Receivables Purchase Agreement at September 30, 2016 was 1.6121%.

Subordinated Notes

At September 30, 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 September 30, 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

9 Months Ended

Sep. 30, 2016

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Junior Subordinated Debentures

Junior Subordinated Debentures

As of September 30, 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 September 30, 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 9/30/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.93	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.64	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.44	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.80	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.29	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.48	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.84	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.60	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.47	%	06/2007	09/2037	06/2012
Total					$	253,566		3.02	%

The junior subordinated debentures totaled $253.6 million at September 30, 2016 compared to $268.6 million at December 31, 2015 and September 30, 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 September 30, 2016, the weighted average contractual interest rate on the junior subordinated debentures was 3.02%. The Company entered into interest rate swaps and caps to hedge the variable cash flows on certain junior subordinated debentures. The hedge-adjusted rate on the junior subordinated debentures as of September 30, 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 Bank ("FRB") 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. 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

9 Months Ended

Sep. 30, 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)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	150,159		$	132,542		$	17,617		13	%
Specialty Finance	25,543			24,657			886			4
Wealth Management	4,835			4,368			467			11
Total Operating Segments	180,537			161,567			18,970			12
Intersegment Eliminations	4,099			3,973			126			3
Consolidated net interest income	$	184,636		$	165,540		$	19,096		12	%
Non-interest income:
Community Banking	$	62,730		$	45,574		$	17,156		38	%
Specialty Finance	12,226			8,264			3,962			48
Wealth Management	20,045			18,362			1,683			9
Total Operating Segments	95,001			72,200			22,801			32
Intersegment Eliminations	(8,397		)	(7,247		)	(1,150		)	(16	)
Consolidated non-interest income	$	86,604		$	64,953		$	21,651		33	%
Net revenue:
Community Banking	$	212,889		$	178,116		$	34,773		20	%
Specialty Finance	37,769			32,921			4,848			15
Wealth Management	24,880			22,730			2,150			9
Total Operating Segments	275,538			233,767			41,771			18
Intersegment Eliminations	(4,298		)	(3,274		)	(1,024		)	(31	)
Consolidated net revenue	$	271,240		$	230,493		$	40,747		18	%
Segment profit:
Community Banking	$	37,527		$	22,723		$	14,804		65	%
Specialty Finance	12,767			12,545			222			2
Wealth Management	2,821			3,087			(266		)	(9	)
Consolidated net income	$	53,115		$	38,355		$	14,760		38	%
Segment assets:
Community Banking	$	21,019,002		$	18,497,364		$	2,521,638		14	%
Specialty Finance	3,702,241			2,987,021			715,220			24
Wealth Management	600,516			550,831			49,685			9
Consolidated total assets	$	25,321,759		$	22,035,216		$	3,286,543		15	%

	Nine months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	434,108		$	382,187		$	51,921		14	%
Specialty Finance	71,075			67,041			4,034			6
Wealth Management	13,701			12,837			864			7
Total Operating Segments	518,884			462,065			56,819			12
Intersegment Eliminations	12,531			12,258			273			2
Consolidated net interest income	$	531,415		$	474,323		$	57,092		12	%
Non-interest income:
Community Banking	$	169,210		$	146,739		$	22,471		15	%
Specialty Finance	37,111			25,270			11,841			47
Wealth Management	58,660			56,103			2,557			5
Total Operating Segments	264,981			228,112			36,869			16
Intersegment Eliminations	(24,826		)	(21,605		)	(3,221		)	(15	)
Consolidated non-interest income	$	240,155		$	206,507		$	33,648		16	%
Net revenue:
Community Banking	$	603,318		$	528,926		$	74,392		14	%
Specialty Finance	108,186			92,311			15,875			17
Wealth Management	72,361			68,940			3,421			5
Total Operating Segments	783,865			690,177			93,688			14
Intersegment Eliminations	(12,295		)	(9,347		)	(2,948		)	(32	)
Consolidated net revenue	$	771,570		$	680,830		$	90,740		13	%
Segment profit:
Community Banking	$	106,860		$	76,821		$	30,039		39	%
Specialty Finance	36,283			34,875			1,408			4
Wealth Management	9,124			9,542			(418		)	(4	)
Consolidated net income	$	152,267		$	121,238		$	31,029		26	%

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 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 September 30, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	September 30, 2016
March 21, 2013	March 21, 2017	$	100,000	Non-Hedge Designated	$	1
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	—
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	9
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	8
		$	265,000		$	18

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 September 30, 2016, December 31, 2015 and September 30, 2015:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	549	$	242	$	216	$	7	$	846	$	1,329
Interest rate derivatives designated as Fair Value Hedges	177		27		5		907		143		291
Total derivatives designated as hedging instruments under ASC 815	$	726	$	269	$	221	$	914	$	989	$	1,620
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	79,477	$	42,510	$	56,717	$	79,199	$	41,469	$	55,809
Interest rate lock commitments	8,352		7,401		11,836		4,060		171		—
Forward commitments to sell mortgage loans	—		745		—		3,505		2,275		7,713
Foreign exchange contracts	273		373		260		270		115		56
Total derivatives not designated as hedging instruments under ASC 815	$	88,102	$	51,029	$	68,813	$	87,034	$	44,030	$	63,578
Total Derivatives	$	88,828	$	51,298	$	69,034	$	87,948	$	45,019	$	65,198

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.

As of September 30, 2016, the Company had two interest rate swap derivatives designated as cash flow hedges of variable rate deposits. The interest rate swap derivatives had notional amounts of $250.0 million and $275.0 million, and mature in July 2019 and August 2019, respectively. Additionally, as of September 30, 2016, the Company had one interest rate swap 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 swap derivative associated with the Company's junior subordinated debentures had a notional amount of $25.0 million, and matures in October 2016. The cap derivatives associated with the Company's junior subordinated debentures had notional amounts of $50.0 million and $40.0 million, respectively, both maturing in September 2017. 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 nine months ended September 30, 2016 or September 30, 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 September 30, 2016:

	September 30, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
October 2016	$	25,000	$	(7	)
July 2019	250,000		106
August 2019	275,000		426
Total Interest Rate Swaps	$	550,000	$	525
Interest Rate Caps:
September 2017	$	50,000	$	9
September 2017	40,000		8
Total Interest Rate Caps	$	90,000	$	17
Total Cash Flow Hedges	$	640,000	$	542

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

	Three months ended						Nine months ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Unrealized loss at beginning of period	$	(3,574	)	$	(4,408	)	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	1,065			571			2,620			1,460
Amount of gain (loss) recognized in other comprehensive income	1,708			(503		)	108			(1,738		)
Unrealized loss at end of period	$	(801	)	$	(4,340	)	$	(801	)	$	(4,340	)

As of September 30, 2016, the Company estimates that during the next twelve months, $1.7 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 September 30, 2016, the Company has seven interest rate swaps with an aggregate notional amount of $71.3 million that were designated as fair value hedges associated with fixed rate commercial and industrial and commercial franchise loans as well as life insurance premium finance receivables.

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $35,000 in other income related to hedge ineffectiveness for the three months ended September 30, 2016 and a $21,000 net loss for the three months ended September 30, 2015. On a year-to-date basis, the Company recognized a net gain of $13,000 and a net loss of $23,000 for the nine months ending September 30, 2016 and 2015, respectively.

On June 1, 2013, the Company de-designated a $96.5 million notional amount 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.

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 September 30, 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
		September 30, 2016		September 30, 2015			September 30, 2016			September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	269	$	(323	)	$	(234	)	$	302	$	35	$	(21	)

(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 Nine Months Ended						Amount of (Loss)/Gain Recognized in Income on Hedged Item Nine Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Nine Months Ended
		September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	(614	)	$	(338	)	$	627	$	315	$	13	$	(23	)

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as accounting hedges are used to manage the Company’s economic 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 September 30, 2016, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $4.1 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 October 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 accounting hedge relationships. At September 30, 2016, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $1.3 billion and interest rate lock commitments with an aggregate notional amount of approximately $683.6 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 September 30, 2016 the Company held foreign currency derivatives with an aggregate notional amount of approximately $63.6 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 accounting 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 September 30, 2016, December 31, 2015 or September 30, 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 September 30, 2016, the Company held two interest rate cap derivative contracts, which are not designated in accounting hedge relationships, with an aggregate notional value of $175.0 million.

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

(Dollars in thousands)		Three Months Ended						Nine Months Ended
Derivative	Location in income statement	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	(395	)	$	(275	)	$	(751	)	$	(592	)
Mortgage banking derivatives	Mortgage banking revenue	(2,215		)	(4,062		)	(3,058		)	(1,669		)
Covered call options	Fees from covered call options	3,633			2,810			9,994			11,735
Foreign exchange contracts	Trading (losses) gains, net	(26		)	113			(262		)	133

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 September 30, 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 $80.6 million. If at September 30, 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)	September 30, 2016			December 31, 2015			September 30, 2015			September 30, 2016			December 31, 2015			September 30, 2015
Gross Amounts Recognized	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(958		)	(753		)	(614		)	(958		)	(753		)	(614		)
Collateral Posted (1)	—			—			—			(79,155		)	(41,705		)	(54,410		)
Net Credit Exposure	$	79,245		$	42,026		$	56,324		$	—		$	—		$	2,405

(1) As of September 30, 2016 and December 31, 2015, the Company posted collateral of$86.0 million and $45.5 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

9 Months Ended

Sep. 30, 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 September 30, 2016, the Company classified $67.2 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 third 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 September 30, 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 September 30, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at December 31, 2015 and $24.5 million at September 30, 2015. In the prior periods, the securities in Level 3 were primarily comprised of auction rate preferred securities. The Company’s valuation methodology at that time included 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. In the third quarter of 2016, the Company exchanged these auction rate securities for the underlying preferred securities, resulting in a $2.4 million gain on the nonmonetary sale. The Company classified the preferred securities received as Level 2 in the fair value hierarchy at the time of the transaction due to observable inputs other than quoted prices existing for the preferred securities.

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 ("MSRs")—Fair value for MSRs 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 September 30, 2016, the Company classified $13.9 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at September 30, 2016 was 5.52% with discount rates applied ranging from 3%-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 2%-85% or a weighted average prepayment speed of 14.73% used as an input to value the MSRs at September 30, 2016. Prepayment speeds are inversely related to the fair value of MSRs 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:

	September 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	30,036	$	—	$	30,036	$	—
U.S. Government agencies	93,683		—		93,683		—
Municipal	109,281		—		42,073		67,208
Corporate notes	65,203		—		65,203		—
Mortgage-backed	1,301,111		—		1,301,111		—
Equity securities	50,782		—		50,782		—
Trading account securities	1,092		—		1,092		—
Mortgage loans held-for-sale	559,634		—		559,634		—
MSRs	13,901		—		—		13,901
Nonqualified deferred compensation assets	9,218		—		9,218		—
Derivative assets	88,828		—		88,828		—
Total	$	2,322,769	$	—	$	2,241,660	$	81,109
Derivative liabilities	$	87,948	$	—	$	87,948	$	—

	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		—
MSRs	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	$	—

	September 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	285,922	$	—	$	285,922	$	—
U.S. Government agencies	645,023		—		645,023		—
Municipal	297,342		—		228,941		68,401
Corporate notes	116,945		—		116,945		—
Mortgage-backed	815,045		—		815,045		—
Equity securities	54,004		—		29,488		24,516
Trading account securities	3,312		—		3,312		—
Mortgage loans held-for-sale	347,005		—		347,005		—
MSRs	7,875		—		—		7,875
Nonqualified deferred compensation assets	8,342		—		8,342		—
Derivative assets	69,034		—		69,034		—
Total	$	2,649,849	$	—	$	2,549,057	$	100,792
Derivative liabilities	$	65,198	$	—	$	65,198	$	—

The aggregate remaining contractual principal balance outstanding as of September 30, 2016, December 31, 2015 and September 30, 2015 for mortgage loans held-for-sale measured at fair value under ASC 825 was $537.0 million, $372.0 million and $328.1 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $559.6 million, $388.0 million and $347.0 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 September 30, 2016, December 31, 2015 and September 30, 2015.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and nine months ended September 30, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2016	$	69,812		$	25,187		$	13,382
Total net gains (losses) included in:
Net income (1)	—			—			519
Other comprehensive loss	(241		)	—			—
Purchases	2,184			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(4,547		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				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)	—			—			4,809
Other comprehensive loss	(141		)	(12		)	—
Purchases	6,458			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(7,722		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2015	$	58,572		$	24,996		$	8,034
Total net (losses) gains included in:
Net income (1)	—			—			(159		)
Other comprehensive income (loss)	223			(480		)	—
Purchases	10,405			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(799		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2015	$	68,401		$	24,516		$	7,875

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

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net (losses) gains included in:
Net income (1)	—			—		(560		)
Other comprehensive (loss) income	(287		)	805		—
Purchases	21,254			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(11,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at September 30, 2015	$	68,401		$	24,516	$	7,875

(1) Changes in the balance of MSRs 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 September 30, 2016.

	September 30, 2016								Three Months Ended September 30, 2016 Fair Value Losses Recognized, net		Nine Months Ended September 30, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	64,614	$	—	$	—	$	64,614	$	4,635	$	10,865
Other real estate owned, including covered other real estate owned (1)	45,449		—		—		45,449		1,237		4,617
Total	$	110,063	$	—	$	—	$	110,063	$	5,872	$	15,482

(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 September 30, 2016, the Company had $90.5 million of impaired loans classified as Level 3. Of the $90.5 million of impaired loans, $64.6 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $25.9 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 September 30, 2016, the Company had $45.4 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 September 30, 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	$	67,208	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
MSRs	13,901		Discounted cash flows	Discount rate	3%-7%	5.52%	Decrease
				Constant prepayment rate (CPR)	2%-85%	14.73%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	64,614	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	45,449		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 September 30, 2016				At December 31, 2015				At September 30, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	246,947	$	246,947	$	275,795	$	275,795	$	250,655	$	250,655
Interest bearing deposits with banks	816,104		816,104		607,782		607,782		701,106		701,106
Available-for-sale securities	1,650,096		1,650,096		1,716,388		1,716,388		2,214,281		2,214,281
Held-to-maturity securities	932,767		942,666		884,826		878,111		—		—
Trading account securities	1,092		1,092		448		448		3,312		3,312
FHLB and FRB stock, at cost	129,630		129,630		101,581		101,581		90,308		90,308
Brokerage customer receivables	25,511		25,511		27,631		27,631		28,293		28,293
Mortgage loans held-for-sale, at fair value	559,634		559,634		388,038		388,038		347,005		347,005
Total loans	19,197,201		20,251,518		17,266,790		18,106,829		16,484,820		17,284,375
MSRs	13,901		13,901		9,092		9,092		7,875		7,875
Nonqualified deferred compensation assets	9,218		9,218		8,517		8,517		8,342		8,342
Derivative assets	88,828		88,828		51,298		51,298		69,034		69,034
Accrued interest receivable and other	205,725		205,725		193,092		193,092		192,572		192,572
Total financial assets	$	23,876,654	$	24,940,870	$	21,531,278	$	22,364,602	$	20,397,603	$	21,197,158
Financial Liabilities
Non-maturity deposits	$	16,946,178	$	16,946,178	$	14,634,957	$	14,634,957	$	14,092,697	$	14,092,697
Deposits with stated maturities	4,201,477		4,200,278		4,004,677		3,998,180		4,135,772		4,137,856
FHLB advances	419,632		427,103		853,431		863,437		451,330		459,154
Other borrowings	241,366		241,366		265,785		265,785		259,978		259,978
Subordinated notes	138,943		138,715		138,861		140,302		138,834		142,953
Junior subordinated debentures	253,566		254,108		268,566		268,046		268,566		268,058
Derivative liabilities	87,948		87,948		45,019		45,019		65,198		65,198
FDIC indemnification liability	17,945		17,945		6,100		6,100		3,033		3,033
Accrued interest payable	8,007		8,007		7,394		7,394		11,364		11,364
Total financial liabilities	$	22,315,062	$	22,321,648	$	20,224,790	$	20,229,220	$	19,426,772	$	19,440,291

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.

FHLB advances. The fair value of FHLB advances is obtained from the FHLB 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 FHLB 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

9 Months Ended

Sep. 30, 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 and other incentive awards valued in whole or in part by reference to the Company’s common stock, all on a stand alone, combination or tandem basis. 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 nine month periods ending September 30, 2016 and 2015.

	Nine Months Ended
	September 30,		September 30,
	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 $2.0 million in the third quarter of 2016 and $2.5 million in the third quarter of 2015, and $6.8 million and $7.8 million for the year-to-date periods, respectively.

A summary of the Company's stock option activity for the nine months endedSeptember 30, 2016 and September 30, 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	562,166		41.04
Exercised	(184,366	)	37.43
Forfeited or canceled	(86,039	)	48.93
Outstanding at September 30, 2016	1,843,495		$	41.27	4.8	$	26,363
Exercisable at September 30, 2016	813,666		$	39.27	3.5	$	13,265

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	502,517		44.36
Exercised	(258,836	)	43.14
Forfeited or canceled	(277,150	)	53.64
Outstanding at September 30, 2015	1,601,321		$	41.34	4.7	$	19,738
Exercisable at September 30, 2015	715,101		$	37.52	3.2	$	11,376

(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 nine months ended September 30, 2016 and September 30, 2015 was $8.61 and $9.72, respectively. The aggregate intrinsic value of options exercised during the nine months ended September 30, 2016 and 2015, was $2.7 million and $2.3 million, respectively.

A summary of the Plans' restricted share activity for the nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	15,764		44.72		15,657		45.81
Vested and issued	(10,041	)	43.78		(20,409	)	39.07
Forfeited or canceled	(598	)	44.26		(2,400	)	36.81
Outstanding at September 30	142,718		$	49.52	138,960		$	48.68
Vested, but not issuable at September 30	88,889		$	51.44	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	118,072		41.02		106,017		44.35
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(13,229	)	41.12		(33,854	)	32.74
Outstanding at September 30	302,966		$	43.64	289,252		$	43.00
Vested, but deferred at September 30	6,660		$	37.93	—		$	—

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

9 Months Ended

Sep. 30, 2016

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Shareholders' Equity and Earnings Per Share

Shareholders’ Equity and Earnings Per Share

Common Stock Offering

In June 2016, the Company issued through a public offering a total of 3,000,000 shares of its common stock. Net proceeds to the Company totaled approximately $152.8 million.

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 current conversion rate of 24.5569 shares of common stock per share of Series C Preferred Stock subject to customary anti-dilution adjustments. In the first nine months 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 nine months of 2016, 1,603 warrant shares were exercised, which resulted in 944 shares of common stock issued. At September 30, 2016, all remaining holders of the interest in the warrant were able to exercise 365,829 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. At the April 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 May 26, 2016 to shareholders of record as of May 12, 2016. At the July 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 August 25, 2016 to shareholders of record as of August 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 July 1, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,532			1,037			(1,644		)	925
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(2,005		)	646			—			(1,359		)
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	2,295			—			—			2,295
Net other comprehensive income (loss) during the period, net of tax	$	1,822		$	1,683		$	(1,644	)	$	1,861
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income during the period, net of tax, before reclassifications	20,444			66			5,006			25,516
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(3,684		)	1,590			—			(2,094		)
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	$	6,707		$	—		$	—		$	6,707
Net other comprehensive income during the period, net of tax	$	23,467		$	1,656		$	5,006		$	30,129
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at July 1, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,995			(287		)	(6,337		)	12,371
Amount reclassified from accumulated other comprehensive (loss) income into net income, net of tax	60			347			—			407
Amount reclassified from accumulated other comprehensive (loss) income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	19,055		$	60		$	(6,337	)	$	12,778
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

	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, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	2,499			(1,027		)	(13,866		)	(12,394		)
Amount reclassified from accumulated other comprehensive loss into net income, net of tax	(244		)	877			—			633
Amount reclassified from accumulated other comprehensive loss related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	2,255		$	(150	)	$	(13,866	)	$	(11,761	)
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Nine Months Ended						Impacted Line on the Consolidated Statements of Income
	September 30,						September 30,
	2016			2015			2016			2015
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	3,305		$	(98	)	$	6,070		$	402		Gains (losses) on investment securities, net
	3,305			(98		)	6,070			402			Income before taxes
Tax effect	$	(1,300	)	$	38		$	(2,386	)	$	(158	)	Income tax expense
Net of tax	$	2,005		$	(60	)	$	3,684		$	244		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	528		$	92		$	1,121		$	92		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	537			479			$	1,499		$	1,350		Interest on junior subordinated debentures
	(1,065		)	(571		)	(2,620		)	(1,442		)	Income before taxes
Tax effect	$	419		$	224		$	1,030		$	565		Income tax expense
Net of tax	$	(646	)	$	(347	)	$	(1,590	)	$	(877	)	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				Nine Months Ended
(In thousands, except per share data)		September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Net income		$	53,115	$	38,355	$	152,267	$	121,238
Less: Preferred stock dividends and discount accretion		3,628		4,079		10,884		7,240
Net income applicable to common shares—Basic	(A)	49,487		34,276		141,383		113,998
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,579		4,735		4,740
Net income applicable to common shares—Diluted	(B)	51,065		35,855		146,118		118,738
Weighted average common shares outstanding	(C)	51,679		48,158		49,763		47,658
Effect of dilutive potential common shares
Common stock equivalents		938		978		822		1,070
Convertible preferred stock, if dilutive		3,109		3,071		3,109		3,071
Total dilutive potential common shares		4,047		4,049		3,931		4,141
Weighted average common shares and effect of dilutive potential common shares	(D)	55,726		52,207		53,694		51,799
Net income per common share:
Basic	(A/C)	$	0.96	$	0.71	$	2.84	$	2.39
Diluted	(B/D)	$	0.92	$	0.69	$	2.72	$	2.29

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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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 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 and nine-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.

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.

The FASB has continued to issue various Updates to clarify and improve specific areas of ASU No. 2014-09. 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. 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. In May 2016, the FASB issued ASU No. 2016-11, "Revenue Recognition (Topic 605) and Derivative and Hedging (Topic 815): Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting," to remove certain areas of SEC Staff Guidance from those specific Topics. Additionally, in May 2016, the FASB issued ASU 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients," to clarify specific aspects of implementation, including the collectibility criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications and completed contracts at transition. 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.

In October 2016, the FASB issued ASU No. 2016-17, "Consolidation (Topic 810): Interest Held through Related Parties That Are under Common Control," to amend guidance from ASU No. 2015-02 regarding how a reporting entity treats indirect interests in a variable interest entity ("VIE") held through related parties under common control when determining whether the reporting entity is the primary beneficiary of such VIE. 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 retrospective approach. The Company does not expect this guidance to 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 September 30, 2015, the Company reclassified as a direct reduction to the related debt balance $7.8 million and $8.7 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.

Allowance for Credit Losses

In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments," to replace the current incurred loss methodology for recognizing credit losses, which delays recognition until it is probable a loss has been incurred, with a methodology that reflects an estimate of all expected credit losses and considers additional reasonable and supportable forecasted information when determining credit loss estimates. This impacts the calculation of the allowance for credit losses for all financial assets measured under the amortized cost basis, including purchased credit impaired ("PCI") loans at the time of and subsequent to acquisition. Additionally, credit losses related to available-for-sale debt securities would be recorded through the allowance for credit losses and not as a direct adjustment to the amortized cost of the securities. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements as well as the impact on current systems and processes.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force)," to clarify the presentation of specific types of cash flow receipts and payments, including the payment of debt prepayment or debt extinguishment costs, contingent consideration cash payments paid subsequent to the acquisition date and proceeds from settlement of BOLI policies. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a retrospective approach, if practicable. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Income Taxes

In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory," to improve the accounting for intra-entity transfers of assets other than inventory. This ASU allows the recognition of current and deferred income taxes for such transfers prior to the subsequent sale of the transferred assets to an outside party. Initial recognition of current and deferred income taxes is currently prohibited for intra-entity transfers of assets other than inventory. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and is to be applied under a modified retrospective approach through cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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 or other liability 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 or reduce the FDIC indemnification liability. 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 September 30, 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 $64.4 million at September 30, 2016, $56.7 million at December 31, 2015 and $53.4 million at September 30, 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 covered loan losses, and a corresponding increase to the FDIC loss share asset or reduction to any FDIC loss share liability.

Impaired Financing Receivable, Policy

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

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

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. A loan 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 September 30, 2016 and approximately $2.8 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 both the three months ended September 30, 2016 and 2015, the Company recorded $98,000 interest income representing this decrease in impairment. For the nine months endedSeptember 30, 2016 and 2015, the Company recorded $323,000 and $385,000, respectively, in interest income.

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 September 30, 2016, the Company had $11.7 million of foreclosed residential real estate properties included within OREO.

Goodwill and Intangible Assets, Goodwill, Policy

At June 30, 2016, the Company utilized a qualitative approach for its annual goodwill impairment test of the community banking segment and determined that it is not more likely than not than an impairment existed at that time. The annual goodwill impairment tests of the specialty finance and wealth management segments will be conducted at December 31, 2016. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of September 30, 2016, the Company identified no such indicators of goodwill impairment.

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

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.

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.

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.

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

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.

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

On June 1, 2013, the Company de-designated a $96.5 million notional amount 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.

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.

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 nine months ended September 30, 2016 or September 30, 2015. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

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 accounting hedges pursuant to ASC 815, and, accordingly, changes in fair value of these contracts are recognized as other non-interest income.

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.

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.

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

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged item in the same line item as the offsetting loss or gain on the related derivatives. The Company recognized a net gain of $35,000 in other income related to hedge ineffectiveness for the three months ended September 30, 2016 and a $21,000 net loss for the three months ended September 30, 2015. On a year-to-date basis, the Company recognized a net gain of $13,000 and a net loss of $23,000 for the nine months ending September 30, 2016 and 2015, respectively.

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 September 30, 2016, the Company classified $67.2 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 third 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 September 30, 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 September 30, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at December 31, 2015 and $24.5 million at September 30, 2015. In the prior periods, the securities in Level 3 were primarily comprised of auction rate preferred securities. The Company’s valuation methodology at that time included 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. In the third quarter of 2016, the Company exchanged these auction rate securities for the underlying preferred securities, resulting in a $2.4 million gain on the nonmonetary sale. The Company classified the preferred securities received as Level 2 in the fair value hierarchy at the time of the transaction due to observable inputs other than quoted prices existing for the preferred securities.

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 ("MSRs")—Fair value for MSRs 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 September 30, 2016, the Company classified $13.9 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at September 30, 2016 was 5.52% with discount rates applied ranging from 3%-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 2%-85% or a weighted average prepayment speed of 14.73% used as an input to value the MSRs at September 30, 2016. Prepayment speeds are inversely related to the fair value of MSRs 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.

FHLB advances. The fair value of FHLB advances is obtained from the FHLB 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 FHLB 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.

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)

9 Months Ended

Sep. 30, 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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Balance at beginning of period	$	(11,729	)	$	3,429		$	(6,100	)	$	11,846
Additions from acquisitions	—			—			—			—
Additions from reimbursable expenses	21			1,039			752			3,548
Accretion (amortization)	4			(718		)	(189		)	(3,184		)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,537		)	(5,236		)	(10,284		)	(13,546		)
Payments received from the FDIC	(1,704		)	(1,547		)	(2,124		)	(1,697		)
Balance at end of period	$	(17,945	)	$	(3,033	)	$	(17,945	)	$	(3,033	)

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 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:

	September 30, 2016
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	30,017	$	19	$	—		$	30,036
U.S. Government agencies	93,561		163		(41		)	93,683
Municipal	106,033		3,395		(147		)	109,281
Corporate notes:
Financial issuers	65,215		299		(1,311		)	64,203
Other	1,000		—		—			1,000
Mortgage-backed: (1)
Mortgage-backed securities	1,257,070		7,958		(54		)	1,264,974
Collateralized mortgage obligations	35,935		304		(102		)	36,137
Equity securities	48,568		2,998		(784		)	50,782
Total available-for-sale securities	$	1,637,399	$	15,136	$	(2,439	)	$	1,650,096
Held-to-maturity securities
U.S. Government agencies	$	729,417	$	7,577	$	(2,879	)	$	734,115
Municipal	203,350		5,515		(314		)	208,551
Total held-to-maturity securities	$	932,767	$	13,092	$	(3,193	)	$	942,666

	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

	September 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	288,185	$	101	$	(2,364	)	$	285,922
U.S. Government agencies	657,297		2,726		(15,000		)	645,023
Municipal	294,073		5,354		(2,085		)	297,342
Corporate notes:
Financial issuers	114,976		1,656		(1,216		)	115,416
Other	1,525		6		(2		)	1,529
Mortgage-backed: (1)
Mortgage-backed securities	778,240		4,974		(10,913		)	772,301
Collateralized mortgage obligations	42,724		343		(323		)	42,744
Equity securities	49,356		4,993		(345		)	54,004
Total available-for-sale securities	$	2,226,376	$	20,153	$	(32,248	)	$	2,214,281
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 September 30, 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	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agencies	35,173		(41		)	—		—			35,173		(41		)
Municipal	13,062		(45		)	7,766		(102		)	20,828		(147		)
Corporate notes:
Financial issuers	10,000		(1		)	34,650		(1,310		)	44,650		(1,311		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	1,017		(22		)	4,019		(32		)	5,036		(54		)
Collateralized mortgage obligations	1,255		(2		)	7,499		(100		)	8,754		(102		)
Equity securities	16,550		(481		)	8,787		(303		)	25,337		(784		)
Total available-for-sale securities	$	77,057	$	(592	)	$	62,721	$	(1,847	)	$	139,778	$	(2,439	)
Held-to-maturity securities
U.S. Government agencies	$	240,400	$	(2,879	)	$	—	$	—		$	240,400	$	(2,879	)
Municipal	11,925		(204		)	9,239		(110		)	21,164		(314		)
Total held-to-maturity securities	$	252,325	$	(3,083	)	$	9,239	$	(110	)	$	261,564	$	(3,193	)

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 sale or call of investment securities:

	Three months ended September 30,						Nine months ended September 30,
(Dollars in thousands)	2016			2015			2016			2015
Realized gains	$	3,429		$	87		$	7,466		$	654
Realized losses	(124		)	(185		)	(1,396		)	(252		)
Net realized gains (losses)	$	3,305		$	(98	)	$	6,070		$	402
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	3,305		$	(98	)	$	6,070		$	402
Proceeds from sales and calls of available-for-sale securities	$	1,114,666		$	82,827		$	2,186,662		$	1,216,860
Proceeds from calls of held-to-maturity securities	141,885			—			423,866			—

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of securities as of September 30, 2016, December 31, 2015 and September 30, 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:

	September 30, 2016				December 31, 2015				September 30, 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	$	115,227	$	115,487	$	160,856	$	160,756	$	164,374	$	164,429
Due in one to five years	141,364		141,368		166,550		166,468		186,199		186,592
Due in five to ten years	28,696		31,319		228,652		225,699		343,468		342,271
Due after ten years	10,539		10,029		13,753		14,182		662,015		651,940
Mortgage-backed	1,293,005		1,301,111		1,110,101		1,092,597		820,964		815,045
Equity securities	48,568		50,782		51,380		56,686		49,356		54,004
Total available-for-sale securities	$	1,637,399	$	1,650,096	$	1,731,292	$	1,716,388	$	2,226,376	$	2,214,281
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	25,927		26,023		19,208		19,156		—		—
Due in five to ten years	64,835		65,842		96,454		96,091		—		—
Due after ten years	842,005		850,801		769,164		762,864		—		—
Total held-to-maturity securities	$	932,767	$	942,666	$	884,826	$	878,111	$	—	$	—

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Loans (Tables)

9 Months Ended

Sep. 30, 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:

	September 30,			December 31,			September 30,
(Dollars in thousands)	2016			2015			2015
Balance:
Commercial	$	5,951,544		$	4,713,909		$	4,400,185
Commercial real estate	5,908,684			5,529,289			5,307,566
Home equity	742,868			784,675			797,465
Residential real estate	663,598			607,451			571,743
Premium finance receivables—commercial	2,430,233			2,374,921			2,407,075
Premium finance receivables—life insurance	3,283,359			2,961,496			2,700,275
Consumer and other	120,975			146,376			131,902
Total loans, net of unearned income, excluding covered loans	$	19,101,261		$	17,118,117		$	16,316,211
Covered loans	95,940			148,673			168,609
Total loans	$	19,197,201		$	17,266,790		$	16,484,820
Mix:
Commercial	31		%	27		%	27		%
Commercial real estate	31			32			32
Home equity	4			5			5
Residential real estate	3			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	100		%	99		%	99		%
Covered loans	—			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:

	September 30, 2016				December 31, 2015
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Bank acquisitions	$	278,862	$	233,340	$	326,470	$	271,260
Life insurance premium finance loans acquisition	266,618		262,887		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 Bank
Contractually required payments including interest	$	20,091
Less: Nonaccretable difference	4,009
Cash flows expected to be collected (1)	$	16,082
Less: Accretable yield	1,082
Fair value of PCI loans acquired	$	15,000

(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						Nine Months Ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Accretable yield, beginning balance	$	55,630		$	63,643		$	63,902		$	79,102
Acquisitions	—			10,407			1,082			11,305
Accretable yield amortized to interest income	(6,449		)	(5,939		)	(17,105		)	(18,359		)
Accretable yield amortized to indemnification asset/liability (1)	(1,744		)	(3,280		)	(5,539		)	(10,945		)
Reclassification from non-accretable difference (2)	5,370			2,298			12,099			5,154
Increases (decreases) in interest cash flows due to payments and changes in interest rates	170			(610		)	(1,462		)	262
Accretable yield, ending balance (3)	$	52,977		$	66,519		$	52,977		$	66,519

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

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

(3) As of September 30, 2016, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $1.5 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)

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Schedule of Aging of the Company's Loan Portfolio

The tables below show the aging of the Company’s loan portfolio at September 30, 2016, December 31, 2015 and September 30, 2015:

As of September 30, 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	$	15,809	$	—	$	7,324	$	8,987	$	3,573,396	$	3,605,516
Franchise	—		—		458		1,626		872,661		874,745
Mortgage warehouse lines of credit	—		—		—		—		309,632		309,632
Asset-based lending	234		—		3,772		3,741		837,972		845,719
Leases	375		—		239		—		299,339		299,953
PCI - commercial (1)	—		1,783		—		1,036		13,160		15,979
Total commercial	16,418		1,783		11,793		15,390		5,906,160		5,951,544
Commercial real estate:
Construction	400		—		—		3,775		447,302		451,477
Land	1,208		—		787		300		105,406		107,701
Office	3,609		—		6,457		8,062		865,954		884,082
Industrial	9,967		—		940		2,961		753,636		767,504
Retail	909		—		1,340		8,723		884,369		895,341
Multi-family	90		—		3,051		2,169		789,645		794,955
Mixed use and other	6,442		—		2,157		5,184		1,837,724		1,851,507
PCI - commercial real estate (1)	—		21,433		1,509		4,066		129,109		156,117
Total commercial real estate	22,625		21,433		16,241		35,240		5,813,145		5,908,684
Home equity	9,309		—		1,728		3,842		727,989		742,868
Residential real estate, including PCI	12,205		1,496		2,232		1,088		646,577		663,598
Premium finance receivables
Commercial insurance loans	14,214		7,754		6,968		10,291		2,391,006		2,430,233
Life insurance loans	—		—		9,960		3,717		3,006,795		3,020,472
PCI - life insurance loans (1)	—		—		—		—		262,887		262,887
Consumer and other, including PCI	543		124		204		871		119,233		120,975
Total loans, net of unearned income, excluding covered loans	$	75,314	$	32,590	$	49,126	$	70,439	$	18,873,792	$	19,101,261
Covered loans	2,331		4,806		1,545		2,456		84,802		95,940
Total loans, net of unearned income	$	77,645	$	37,396	$	50,671	$	72,895	$	18,958,594	$	19,197,201

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

As of December 31, 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

As of September 30, 2015			90+ days and still accruing		60-89 days past due		30-59 days past due
(Dollars in thousands)	Nonaccrual								Current		Total Loans
Loan Balances:
Commercial
Commercial, industrial and other	$	12,006	$	—	$	2,775	$	9,709	$	2,985,985	$	3,010,475
Franchise	—		—		80		376		221,545		222,001
Mortgage warehouse lines of credit	—		—		—		—		136,614		136,614
Asset-based lending	12		—		1,313		247		800,798		802,370
Leases	—		—		—		89		205,697		205,786
PCI - commercial (1)	—		217		—		39		22,683		22,939
Total commercial	12,018		217		4,168		10,460		4,373,322		4,400,185
Commercial real estate:
Construction	31		—		—		3,535		343,668		347,234
Land	1,756		—		—		2,207		75,113		79,076
Office	4,045		—		10,861		2,362		773,043		790,311
Industrial	11,637		—		786		897		622,804		636,124
Retail	2,022		—		1,536		821		781,463		785,842
Multi-family	1,525		—		512		744		684,878		687,659
Mixed use and other	7,601		—		2,340		12,871		1,797,516		1,820,328
PCI - commercial real estate (1)	—		13,547		299		583		146,563		160,992
Total commercial real estate	28,617		13,547		16,334		24,020		5,225,048		5,307,566
Home equity	8,365		—		811		4,124		784,165		797,465
Residential real estate, including PCI	14,557		424		1,340		1,606		553,816		571,743
Premium finance receivables
Commercial insurance loans	13,751		8,231		6,664		13,659		2,364,770		2,407,075
Life insurance loans	—		—		9,656		2,627		2,314,406		2,326,689
PCI - life insurance loans (1)	—		—		—		—		373,586		373,586
Consumer and other, including PCI	297		140		56		935		130,474		131,902
Total loans, net of unearned income, excluding covered loans	$	77,605	$	22,559	$	39,029	$	57,431	$	16,119,587	$	16,316,211
Covered loans	6,540		7,626		1,392		802		152,249		168,609
Total loans, net of unearned income	$	84,145	$	30,185	$	40,421	$	58,233	$	16,271,836	$	16,484,820

(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 September 30, 2016, December 31, 2015 and September 30, 2015:

	Performing						Non-performing						Total
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Loan Balances:
Commercial
Commercial, industrial and other	$	3,589,707	$	3,245,818	$	2,998,469	$	15,809	$	12,710	$	12,006	$	3,605,516	$	3,258,528	$	3,010,475
Franchise	874,745		245,228		222,001		—		—		—		874,745		245,228		222,001
Mortgage warehouse lines of credit	309,632		222,806		136,614		—		—		—		309,632		222,806		136,614
Asset-based lending	845,485		742,676		802,358		234		8		12		845,719		742,684		802,370
Leases	299,578		225,539		205,786		375		535		—		299,953		226,074		205,786
PCI - commercial (1)	15,979		18,589		22,939		—		—		—		15,979		18,589		22,939
Total commercial	5,935,126		4,700,656		4,388,167		16,418		13,253		12,018		5,951,544		4,713,909		4,400,185
Commercial real estate
Construction	451,077		358,354		347,203		400		306		31		451,477		358,660		347,234
Land	106,493		76,666		77,320		1,208		1,751		1,756		107,701		78,417		79,076
Office	880,473		858,382		786,266		3,609		4,619		4,045		884,082		863,001		790,311
Industrial	757,537		718,084		624,487		9,967		9,564		11,637		767,504		727,648		636,124
Retail	894,432		866,639		783,820		909		1,760		2,022		895,341		868,399		785,842
Multi-family	794,865		740,395		686,134		90		1,954		1,525		794,955		742,349		687,659
Mixed use and other	1,845,065		1,726,125		1,812,727		6,442		6,691		7,601		1,851,507		1,732,816		1,820,328
PCI - commercial real estate(1)	156,117		157,999		160,992		—		—		—		156,117		157,999		160,992
Total commercial real estate	5,886,059		5,502,644		5,278,949		22,625		26,645		28,617		5,908,684		5,529,289		5,307,566
Home equity	733,559		777,827		789,100		9,309		6,848		8,365		742,868		784,675		797,465
Residential real estate, including PCI	651,393		595,408		557,186		12,205		12,043		14,557		663,598		607,451		571,743
Premium finance receivables
Commercial insurance loans	2,408,265		2,350,066		2,385,093		21,968		24,855		21,982		2,430,233		2,374,921		2,407,075
Life insurance loans	3,020,472		2,593,204		2,326,689		—		—		—		3,020,472		2,593,204		2,326,689
PCI - life insurance loans (1)	262,887		368,292		373,586		—		—		—		262,887		368,292		373,586
Consumer and other, including PCI	120,372		145,963		131,465		603		413		437		120,975		146,376		131,902
Total loans, net of unearned income, excluding covered loans	$	19,018,133	$	17,034,060	$	16,230,235	$	83,128	$	84,057	$	85,976	$	19,101,261	$	17,118,117	$	16,316,211

(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 and nine months endedSeptember 30, 2016 and 2015 is as follows:

Three months ended September 30, 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	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Other adjustments	(35		)	(57		)	—			(10		)	(10		)	—			(112		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(79		)	—			—			—			—			(579		)
Charge-offs	(3,469		)	(382		)	(574		)	(134		)	(1,959		)	(389		)	(6,907		)
Recoveries	176			364			65			61			456			72			1,194
Provision for credit losses	5,212			1,678			810			781			974			286			9,741
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341
Individually evaluated for impairment	$	2,554		$	2,491		$	964		$	1,166		$	—		$	192		$	7,367
Collectively evaluated for impairment	40,252			46,983			10,720			4,867			7,275			1,053			111,150
Loans acquired with deteriorated credit quality	732			22			—			70			—			—			824
Loans at period end
Individually evaluated for impairment	$	19,133		$	45,290		$	9,309		$	17,040		$	—		$	602		$	91,374
Collectively evaluated for impairment	5,916,432			5,707,277			733,559			642,633			5,450,705			119,162			18,569,768
Loans acquired with deteriorated credit quality	15,979			156,117			—			3,925			262,887			1,211			440,119

Three months ended September 30, 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	$	32,900		$	42,198		$	12,288		$	5,019		$	6,921		$	878		$	100,204
Other adjustments	(12		)	(85		)	—			(6		)	(50		)	—			(153		)
Reclassification from allowance for unfunded lending-related commitments	—			(42		)	—			—			—			—			(42		)
Charge-offs	(964		)	(1,948		)	(1,116		)	(1,138		)	(1,595		)	(116		)	(6,877		)
Recoveries	462			213			42			136			294			52			1,199
Provision for credit losses	1,604			3,725			1,009			575			1,511			241			8,665
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922
Individually evaluated for impairment	$	1,881		$	5,832		$	239		$	544		$	—		$	30		$	8,526
Collectively evaluated for impairment	31,943			38,361			11,984			4,042			7,081			1,024			94,435
Loans acquired with deteriorated credit quality	166			794			—			—			—			1			961
Loans at period end
Individually evaluated for impairment	$	18,211		$	68,947		$	8,365		$	18,267		$	—		$	430		$	114,220
Collectively evaluated for impairment	4,359,035			5,077,627			789,100			549,794			4,733,764			131,472			15,640,792
Loans acquired with deteriorated credit quality	22,939			160,992			—			3,682			373,586			—			561,199

Nine months ended September 30, 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	(103		)	(203		)	—			(49		)	31			—			(324		)
Reclassification from allowance for unfunded lending-related commitments	(500		)	(200		)	—			—			—			—			(700		)
Charge-offs	(4,861		)	(1,555		)	(3,672		)	(1,320		)	(6,350		)	(720		)	(18,478		)
Recoveries	926			1,029			184			204			1,876			143			4,362
Provision for credit losses	11,441			5,519			3,160			2,534			4,485			294			27,433
Allowance for loan losses at period end	$	43,038		$	48,348		$	11,684		$	6,103		$	7,275		$	1,245		$	117,693
Allowance for unfunded lending-related commitments at period end	$	500		$	1,148		$	—		$	—		$	—		$	—		$	1,648
Allowance for credit losses at period end	$	43,538		$	49,496		$	11,684		$	6,103		$	7,275		$	1,245		$	119,341

Nine months ended September 30, 2015				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivable			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	31,699		$	35,533		$	12,500		$	4,218		$	6,513		$	1,242		$	91,705
Other adjustments	(42		)	(346		)	—			(14		)	(92		)	—			(494		)
Reclassification from allowance for unfunded lending-related commitments	—			(151		)	—			—			—			—			(151		)
Charge-offs	(2,884		)	(3,809		)	(3,547		)	(2,692		)	(4,384		)	(342		)	(17,658		)
Recoveries	1,117			2,349			129			228			1,081			139			5,043
Provision for credit losses	4,100			10,485			3,141			2,846			3,963			16			24,551
Allowance for loan losses at period end	$	33,990		$	44,061		$	12,223		$	4,586		$	7,081		$	1,055		$	102,996
Allowance for unfunded lending-related commitments at period end	$	—		$	926		$	—		$	—		$	—		$	—		$	926
Allowance for credit losses at period end	$	33,990		$	44,987		$	12,223		$	4,586		$	7,081		$	1,055		$	103,922

Summary of Activity in the Allowance for Covered Loan Losses

A summary of activity in the allowance for covered loan losses for the three and nine months endedSeptember 30, 2016 and 2015 is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(Dollars in thousands)	2016			2015			2016			2015
Balance at beginning of period	$	2,412		$	2,215		$	3,026		$	2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(847		)	(1,716		)	(3,495		)	(3,339		)
Benefit attributable to FDIC loss share agreements	677			1,373			2,796			2,671
Net provision for covered loan losses	(170		)	(343		)	(699		)	(668		)
Increase/decrease in FDIC indemnification liability/asset	(677		)	(1,373		)	(2,796		)	(2,671		)
Loans charged-off	(918		)	(287		)	(1,291		)	(664		)
Recoveries of loans charged-off	775			2,706			3,182			4,790
Net (charge-offs) recoveries	(143		)	2,419			1,891			4,126
Balance at end of period	$	1,422		$	2,918		$	1,422		$	2,918

Summary of Impaired Loans, Including Restructured Loans

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

	September 30,		December 31,		September 30,
(Dollars in thousands)	2016		2015		2015
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	39,022	$	49,961	$	51,113
Impaired loans with no allowance for loan loss required	51,518		51,294		61,914
Total impaired loans (2)	$	90,540	$	101,255	$	113,027
Allowance for loan losses related to impaired loans	$	6,836	$	6,380	$	8,483
TDRs	$	44,276	$	51,853	$	59,320

(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 Nine Months Ended
	As of September 30, 2016						September 30, 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	$	5,426	$	5,434	$	1,887	$	5,487	$	212
Asset-based lending	234		235		44		235		7
Leases	375		375		116		388		14
Commercial real estate
Construction	—		—		—		—		—
Land	2,620		2,620		44		2,670		80
Office	1,697		2,361		182		1,722		79
Industrial	6,855		7,338		1,388		7,069		284
Retail	6,605		6,623		240		6,668		160
Multi-family	1,266		1,266		8		1,134		29
Mixed use and other	5,437		5,511		605		5,452		198
Home equity	2,373		2,457		964		2,404		63
Residential real estate	5,942		6,428		1,166		5,807		190
Consumer and other	192		192		192		194		8
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,669	$	16,261	$	—	$	14,745	$	717
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	1,995		1,995		—		2,273		94
Land	3,864		8,088		—		4,316		408
Office	4,980		6,243		—		4,978		260
Industrial	3,508		3,827		—		3,574		200
Retail	805		913		—		936		36
Multi-family	89		174		—		109		5
Mixed use and other	5,164		5,712		—		5,300		236
Home equity	6,936		9,108		—		7,736		320
Residential real estate	11,098		13,077		—		11,125		445
Consumer and other	410		520		—		428		21
Total impaired loans, net of unearned income	$	90,540	$	106,758	$	6,836	$	94,750	$	4,066

							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	—		—		—		—		—
Leases	—		—		—		—		—
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
Leases	—		—		—		—		—
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 Nine Months Ended
	As of September 30, 2015						September 30, 2015
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	8,580	$	9,118	$	1,865	$	8,906	$	381
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	—		—		—		—		—
Land	3,559		7,309		31		3,713		362
Office	6,765		7,724		2,162		7,113		263
Industrial	10,049		10,542		1,550		10,662		421
Retail	8,899		9,596		381		8,906		306
Multi-family	1,199		1,622		203		1,210		60
Mixed use and other	7,162		7,345		1,501		7,250		224
Home equity	547		762		239		672		25
Residential real estate	4,225		4,326		521		4,280		130
Consumer and other	128		128		30		139		6
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	9,142	$	11,997	$	—	$	9,716	$	539
Asset-based lending	12		1,573		—		4		66
Leases	—		—		—		—		—
Commercial real estate
Construction	2,054		2,055		—		2,034		73
Land	4,114		4,874		—		4,232		130
Office	4,171		5,120		—		4,243		194
Industrial	2,255		2,448		—		2,304		141
Retail	3,140		3,302		—		3,305		104
Multi-family	1,330		1,635		—		1,522		50
Mixed use and other	13,788		16,576		—		14,668		563
Home equity	7,818		8,406		—		7,065		229
Residential real estate	13,788		15,932		—		14,387		449
Consumer and other	302		398		—		311		15
Total impaired loans, net of unearned income	$	113,027	$	132,788	$	8,483	$	116,642	$	4,731

Summary of the Post-Modification Balance of TDRs

Nine months ended September 30, 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	3	$	345	3	$	345	—	$	—	—	$	—	1	$	275
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	3	583		2	423		3	583		1	380		—	—
Total loans	15	$	9,449	14	$	9,289	6	$	7,779	1	$	380	1	$	275

(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.

Nine months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office							—	—					—	—
Industrial	1	169		1	169		—	—		1	169		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	9	1,664		9	1,664		5	674		1	50		—	—
Total loans	10	$	1,833	10	$	1,833	5	$	674	2	$	219	—	$	—

(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.

The tables below present a summary of the post-modification balance of loans restructured during the three and nine months endedSeptember 30, 2016 and 2015, respectively, which represent TDRs:

Three months ended September 30, 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	$	28	1	$	28	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	43		1	43		1	43		—	—		—	—
Total loans	2	$	71	2	$	71	1	$	43	—	$	—	—	$	—

Three months ended September 30, 2015 (Dollars in thousands)	Total (1)(2)			Extension at Below Market Terms (2)			Reduction of Interest Rate (2)			Modification to  Interest-only Payments (2)			Forgiveness of Debt(2)
	Count	Balance		Count	Balance		Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	—	$	—	—	$	—	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	222		1	222		1	222		—	—		—	—
Total loans	1	$	222	1	$	222	1	$	222	—	$	—	—	$	—

(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 September 30, 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 September 30, 2016			Three Months Ended September 30, 2016			Nine Months Ended September 30, 2016
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	3	$	345	—	$	—	—	$	—
Commercial real estate
Office	1	450		1	450		1	450
Industrial	6	7,921		3	725		3	725
Mixed use and other	4	351		1	16		3	217
Residential real estate and other	3	583		—	—		—	—
Total loans	17	$	9,650	5	$	1,191	7	$	1,392

(Dollars in thousands)	As of September 30, 2015			Three Months Ended September 30, 2015			Nine Months Ended September 30, 2015
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	1	$	1,461	—	$	—	—	$	—
Commercial real estate
Office	1	720		—	—		—	—
Industrial	2	854		1	685		1	685
Mixed use and other	—	—		—	—		—	—
Residential real estate and other	11	2,613		2	131		3	345
Total loans	15	$	5,648	3	$	816	4	$	1,030

(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)

9 Months Ended

Sep. 30, 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		September 30, 2016
Community banking	$	401,612	$	11,470	$	—	$	1,517	$	414,599
Specialty finance	38,035		—		—		1,190		39,225
Wealth management	32,114		—		—		—		32,114
Total	$	471,761	$	11,470	$	—	$	2,707	$	485,938

Summary of Finite-Lived Intangible Assets

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of September 30, 2016 is as follows:

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	34,998		$	34,841		$	34,840
Accumulated amortization	(20,598		)	(17,382		)	(16,195		)
Net carrying amount	$	14,400		$	17,459		$	18,645
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,129		)	(1,052		)	(1,027		)
Net carrying amount	$	671		$	748		$	773
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,275		)	(1,938		)	(1,825		)
Net carrying amount	$	5,665		$	6,002		$	6,115
Total other intangible assets, net	$	20,736		$	24,209		$	25,533

Estimated Amortization

Estimated amortization
Actual in nine months ended September 30, 2016	$	3,631
Estimated remaining in 2016	1,057
Estimated—2017	3,902
Estimated—2018	3,395
Estimated—2019	2,875
Estimated—2020	2,334

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Deposits (Tables)

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Summary of Deposits

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

(Dollars in thousands)	September 30, 2016			December 31, 2015			September 30, 2015
Balance:
Non-interest bearing	$	5,711,042		$	4,836,420		$	4,705,994
NOW and interest bearing demand deposits	2,552,611			2,390,217			2,231,258
Wealth management deposits	2,283,233			1,643,653			1,469,920
Money market	4,421,631			4,041,300			4,001,518
Savings	1,977,661			1,723,367			1,684,007
Time certificates of deposit	4,201,477			4,004,677			4,135,772
Total deposits	$	21,147,655		$	18,639,634		$	18,228,469
Mix:
Non-interest bearing	27		%	26		%	26		%
NOW and interest bearing demand deposits	12			13			12
Wealth management deposits	11			9			8
Money market	21			22			22
Savings	9			9			9
Time certificates of deposit	20			21			23
Total deposits	100		%	100		%	100		%

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

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Summary of Debt

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

(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015
FHLB advances	$	419,632	$	853,431	$	443,955
Other borrowings:
Notes payable	56,191		67,429		71,250
Short-term borrowings	33,173		63,887		57,590
Other	18,360		18,965		18,332
Secured borrowings	133,642		115,504		112,633
Total other borrowings	241,366		265,785		259,805
Subordinated notes	138,943		138,861		138,834
Total FHLB advances, other borrowings and subordinated notes	$	799,941	$	1,258,077	$	842,594

Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements

The following is a summary of these securities pledged as of September 30, 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
Corporate notes:
Financial issuers	$	3,945
Mortgage-backed securities	19,853
Held-to-maturity securities pledged
U.S. Government agencies	20,296
Total collateral pledged	$	44,094
Excess collateral	10,921
Securities sold under repurchase agreements	$	33,173

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Junior Subordinated Debentures (Tables)

9 Months Ended

Sep. 30, 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 September 30, 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 9/30/2016		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	3.93	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	3.64	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.44	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	2.80	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.29	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.48	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	3.76	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	3.84	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	2.60	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.47	%	06/2007	09/2037	06/2012
Total					$	253,566		3.02	%

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Segment Information (Tables)

9 Months Ended

Sep. 30, 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)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	150,159		$	132,542		$	17,617		13	%
Specialty Finance	25,543			24,657			886			4
Wealth Management	4,835			4,368			467			11
Total Operating Segments	180,537			161,567			18,970			12
Intersegment Eliminations	4,099			3,973			126			3
Consolidated net interest income	$	184,636		$	165,540		$	19,096		12	%
Non-interest income:
Community Banking	$	62,730		$	45,574		$	17,156		38	%
Specialty Finance	12,226			8,264			3,962			48
Wealth Management	20,045			18,362			1,683			9
Total Operating Segments	95,001			72,200			22,801			32
Intersegment Eliminations	(8,397		)	(7,247		)	(1,150		)	(16	)
Consolidated non-interest income	$	86,604		$	64,953		$	21,651		33	%
Net revenue:
Community Banking	$	212,889		$	178,116		$	34,773		20	%
Specialty Finance	37,769			32,921			4,848			15
Wealth Management	24,880			22,730			2,150			9
Total Operating Segments	275,538			233,767			41,771			18
Intersegment Eliminations	(4,298		)	(3,274		)	(1,024		)	(31	)
Consolidated net revenue	$	271,240		$	230,493		$	40,747		18	%
Segment profit:
Community Banking	$	37,527		$	22,723		$	14,804		65	%
Specialty Finance	12,767			12,545			222			2
Wealth Management	2,821			3,087			(266		)	(9	)
Consolidated net income	$	53,115		$	38,355		$	14,760		38	%
Segment assets:
Community Banking	$	21,019,002		$	18,497,364		$	2,521,638		14	%
Specialty Finance	3,702,241			2,987,021			715,220			24
Wealth Management	600,516			550,831			49,685			9
Consolidated total assets	$	25,321,759		$	22,035,216		$	3,286,543		15	%

	Nine months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	September 30, 2016			September 30, 2015
Net interest income:
Community Banking	$	434,108		$	382,187		$	51,921		14	%
Specialty Finance	71,075			67,041			4,034			6
Wealth Management	13,701			12,837			864			7
Total Operating Segments	518,884			462,065			56,819			12
Intersegment Eliminations	12,531			12,258			273			2
Consolidated net interest income	$	531,415		$	474,323		$	57,092		12	%
Non-interest income:
Community Banking	$	169,210		$	146,739		$	22,471		15	%
Specialty Finance	37,111			25,270			11,841			47
Wealth Management	58,660			56,103			2,557			5
Total Operating Segments	264,981			228,112			36,869			16
Intersegment Eliminations	(24,826		)	(21,605		)	(3,221		)	(15	)
Consolidated non-interest income	$	240,155		$	206,507		$	33,648		16	%
Net revenue:
Community Banking	$	603,318		$	528,926		$	74,392		14	%
Specialty Finance	108,186			92,311			15,875			17
Wealth Management	72,361			68,940			3,421			5
Total Operating Segments	783,865			690,177			93,688			14
Intersegment Eliminations	(12,295		)	(9,347		)	(2,948		)	(32	)
Consolidated net revenue	$	771,570		$	680,830		$	90,740		13	%
Segment profit:
Community Banking	$	106,860		$	76,821		$	30,039		39	%
Specialty Finance	36,283			34,875			1,408			4
Wealth Management	9,124			9,542			(418		)	(4	)
Consolidated net income	$	152,267		$	121,238		$	31,029		26	%

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 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 September 30, 2016:

(Dollars in thousands)
		Notional		Accounting	Fair Value as of
Effective Date	Maturity Date	Amount		Treatment	September 30, 2016
March 21, 2013	March 21, 2017	$	100,000	Non-Hedge Designated	$	1
May 16, 2013	November 16, 2016	75,000		Non-Hedge Designated	—
September 15, 2013	September 15, 2017	50,000		Cash Flow Hedging	9
September 30, 2013	September 30, 2017	40,000		Cash Flow Hedging	8
		$	265,000		$	18

Schedule Of Fair Value Of Derivative Financial Instruments

The table below presents the fair value of the Company’s derivative financial instruments as of September 30, 2016, December 31, 2015 and September 30, 2015:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	September 30, 2016		December 31, 2015		September 30, 2015		September 30, 2016		December 31, 2015		September 30, 2015
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	549	$	242	$	216	$	7	$	846	$	1,329
Interest rate derivatives designated as Fair Value Hedges	177		27		5		907		143		291
Total derivatives designated as hedging instruments under ASC 815	$	726	$	269	$	221	$	914	$	989	$	1,620
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	79,477	$	42,510	$	56,717	$	79,199	$	41,469	$	55,809
Interest rate lock commitments	8,352		7,401		11,836		4,060		171		—
Forward commitments to sell mortgage loans	—		745		—		3,505		2,275		7,713
Foreign exchange contracts	273		373		260		270		115		56
Total derivatives not designated as hedging instruments under ASC 815	$	88,102	$	51,029	$	68,813	$	87,034	$	44,030	$	63,578
Total Derivatives	$	88,828	$	51,298	$	69,034	$	87,948	$	45,019	$	65,198

Schedule Of Cash Flow Hedging Instruments

The table below provides details on each of these cash flow hedges as of September 30, 2016:

	September 30, 2016
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
October 2016	$	25,000	$	(7	)
July 2019	250,000		106
August 2019	275,000		426
Total Interest Rate Swaps	$	550,000	$	525
Interest Rate Caps:
September 2017	$	50,000	$	9
September 2017	40,000		8
Total Interest Rate Caps	$	90,000	$	17
Total Cash Flow Hedges	$	640,000	$	542

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						Nine months ended
(Dollars in thousands)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Unrealized loss at beginning of period	$	(3,574	)	$	(4,408	)	$	(3,529	)	$	(4,062	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	1,065			571			2,620			1,460
Amount of gain (loss) recognized in other comprehensive income	1,708			(503		)	108			(1,738		)
Unrealized loss at end of period	$	(801	)	$	(4,340	)	$	(801	)	$	(4,340	)

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 September 30, 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
		September 30, 2016		September 30, 2015			September 30, 2016			September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	269	$	(323	)	$	(234	)	$	302	$	35	$	(21	)

(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 Nine Months Ended						Amount of (Loss)/Gain Recognized in Income on Hedged Item Nine Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Nine Months Ended
		September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Interest rate swaps	Trading losses, net	$	(614	)	$	(338	)	$	627	$	315	$	13	$	(23	)

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 accounting hedge relationships were as follows:

(Dollars in thousands)		Three Months Ended						Nine Months Ended
Derivative	Location in income statement	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
Interest rate swaps and caps	Trading (losses) gains, net	$	(395	)	$	(275	)	$	(751	)	$	(592	)
Mortgage banking derivatives	Mortgage banking revenue	(2,215		)	(4,062		)	(3,058		)	(1,669		)
Covered call options	Fees from covered call options	3,633			2,810			9,994			11,735
Foreign exchange contracts	Trading (losses) gains, net	(26		)	113			(262		)	133

Offsetting Assets

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)	September 30, 2016			December 31, 2015			September 30, 2015			September 30, 2016			December 31, 2015			September 30, 2015
Gross Amounts Recognized	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(958		)	(753		)	(614		)	(958		)	(753		)	(614		)
Collateral Posted (1)	—			—			—			(79,155		)	(41,705		)	(54,410		)
Net Credit Exposure	$	79,245		$	42,026		$	56,324		$	—		$	—		$	2,405

(1) As of September 30, 2016 and December 31, 2015, the Company posted collateral of$86.0 million and $45.5 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.

Offsetting Liabilities

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)	September 30, 2016			December 31, 2015			September 30, 2015			September 30, 2016			December 31, 2015			September 30, 2015
Gross Amounts Recognized	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	80,203		$	42,779		$	56,938		$	80,113		$	42,458		$	57,429
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(958		)	(753		)	(614		)	(958		)	(753		)	(614		)
Collateral Posted (1)	—			—			—			(79,155		)	(41,705		)	(54,410		)
Net Credit Exposure	$	79,245		$	42,026		$	56,324		$	—		$	—		$	2,405

(1) As of September 30, 2016 and December 31, 2015, the Company posted collateral of$86.0 million and $45.5 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)

9 Months Ended

Sep. 30, 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:

	September 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	30,036	$	—	$	30,036	$	—
U.S. Government agencies	93,683		—		93,683		—
Municipal	109,281		—		42,073		67,208
Corporate notes	65,203		—		65,203		—
Mortgage-backed	1,301,111		—		1,301,111		—
Equity securities	50,782		—		50,782		—
Trading account securities	1,092		—		1,092		—
Mortgage loans held-for-sale	559,634		—		559,634		—
MSRs	13,901		—		—		13,901
Nonqualified deferred compensation assets	9,218		—		9,218		—
Derivative assets	88,828		—		88,828		—
Total	$	2,322,769	$	—	$	2,241,660	$	81,109
Derivative liabilities	$	87,948	$	—	$	87,948	$	—

	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		—
MSRs	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	$	—

	September 30, 2015
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	285,922	$	—	$	285,922	$	—
U.S. Government agencies	645,023		—		645,023		—
Municipal	297,342		—		228,941		68,401
Corporate notes	116,945		—		116,945		—
Mortgage-backed	815,045		—		815,045		—
Equity securities	54,004		—		29,488		24,516
Trading account securities	3,312		—		3,312		—
Mortgage loans held-for-sale	347,005		—		347,005		—
MSRs	7,875		—		—		7,875
Nonqualified deferred compensation assets	8,342		—		8,342		—
Derivative assets	69,034		—		69,034		—
Total	$	2,649,849	$	—	$	2,549,057	$	100,792
Derivative liabilities	$	65,198	$	—	$	65,198	$	—

Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis

The changes in Level 3 assets measured at fair value on a recurring basis during the three and nine months ended September 30, 2016 and 2015 are summarized as follows:

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2016	$	69,812		$	25,187		$	13,382
Total net gains (losses) included in:
Net income (1)	—			—			519
Other comprehensive loss	(241		)	—			—
Purchases	2,184			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(4,547		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				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)	—			—			4,809
Other comprehensive loss	(141		)	(12		)	—
Purchases	6,458			—			—
Issuances	—			—			—
Sales	—			(25,187		)	—
Settlements	(7,722		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2016	$	67,208		$	—		$	13,901

				Equity securities			Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at July 1, 2015	$	58,572		$	24,996		$	8,034
Total net (losses) gains included in:
Net income (1)	—			—			(159		)
Other comprehensive income (loss)	223			(480		)	—
Purchases	10,405			—			—
Issuances	—			—			—
Sales	—			—			—
Settlements	(799		)	—			—
Net transfers into/(out of) Level 3	—			—			—
Balance at September 30, 2015	$	68,401		$	24,516		$	7,875

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

				Equity securities		Mortgage servicing rights
(Dollars in thousands)	Municipal
Balance at January 1, 2015	$	58,953		$	23,711	$	8,435
Total net (losses) gains included in:
Net income (1)	—			—		(560		)
Other comprehensive (loss) income	(287		)	805		—
Purchases	21,254			—		—
Issuances	—			—		—
Sales	—			—		—
Settlements	(11,519		)	—		—
Net transfers into/(out of) Level 3	—			—		—
Balance at September 30, 2015	$	68,401		$	24,516	$	7,875

(1) Changes in the balance of MSRs 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 September 30, 2016.

	September 30, 2016								Three Months Ended September 30, 2016 Fair Value Losses Recognized, net		Nine Months Ended September 30, 2016 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	64,614	$	—	$	—	$	64,614	$	4,635	$	10,865
Other real estate owned, including covered other real estate owned (1)	45,449		—		—		45,449		1,237		4,617
Total	$	110,063	$	—	$	—	$	110,063	$	5,872	$	15,482

(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 September 30, 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	$	67,208	Bond pricing	Equivalent rating	BBB-AA+	N/A	Increase
MSRs	13,901		Discounted cash flows	Discount rate	3%-7%	5.52%	Decrease
				Constant prepayment rate (CPR)	2%-85%	14.73%	Decrease
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	64,614	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%	Decrease
Other real estate owned, including covered other real estate owned	45,449		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 September 30, 2016				At December 31, 2015				At September 30, 2015
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	246,947	$	246,947	$	275,795	$	275,795	$	250,655	$	250,655
Interest bearing deposits with banks	816,104		816,104		607,782		607,782		701,106		701,106
Available-for-sale securities	1,650,096		1,650,096		1,716,388		1,716,388		2,214,281		2,214,281
Held-to-maturity securities	932,767		942,666		884,826		878,111		—		—
Trading account securities	1,092		1,092		448		448		3,312		3,312
FHLB and FRB stock, at cost	129,630		129,630		101,581		101,581		90,308		90,308
Brokerage customer receivables	25,511		25,511		27,631		27,631		28,293		28,293
Mortgage loans held-for-sale, at fair value	559,634		559,634		388,038		388,038		347,005		347,005
Total loans	19,197,201		20,251,518		17,266,790		18,106,829		16,484,820		17,284,375
MSRs	13,901		13,901		9,092		9,092		7,875		7,875
Nonqualified deferred compensation assets	9,218		9,218		8,517		8,517		8,342		8,342
Derivative assets	88,828		88,828		51,298		51,298		69,034		69,034
Accrued interest receivable and other	205,725		205,725		193,092		193,092		192,572		192,572
Total financial assets	$	23,876,654	$	24,940,870	$	21,531,278	$	22,364,602	$	20,397,603	$	21,197,158
Financial Liabilities
Non-maturity deposits	$	16,946,178	$	16,946,178	$	14,634,957	$	14,634,957	$	14,092,697	$	14,092,697
Deposits with stated maturities	4,201,477		4,200,278		4,004,677		3,998,180		4,135,772		4,137,856
FHLB advances	419,632		427,103		853,431		863,437		451,330		459,154
Other borrowings	241,366		241,366		265,785		265,785		259,978		259,978
Subordinated notes	138,943		138,715		138,861		140,302		138,834		142,953
Junior subordinated debentures	253,566		254,108		268,566		268,046		268,566		268,058
Derivative liabilities	87,948		87,948		45,019		45,019		65,198		65,198
FDIC indemnification liability	17,945		17,945		6,100		6,100		3,033		3,033
Accrued interest payable	8,007		8,007		7,394		7,394		11,364		11,364
Total financial liabilities	$	22,315,062	$	22,321,648	$	20,224,790	$	20,229,220	$	19,426,772	$	19,440,291

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Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 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 nine month periods ending September 30, 2016 and 2015.

	Nine Months Ended
	September 30,		September 30,
	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 nine months endedSeptember 30, 2016 and September 30, 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	562,166		41.04
Exercised	(184,366	)	37.43
Forfeited or canceled	(86,039	)	48.93
Outstanding at September 30, 2016	1,843,495		$	41.27	4.8	$	26,363
Exercisable at September 30, 2016	813,666		$	39.27	3.5	$	13,265

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	502,517		44.36
Exercised	(258,836	)	43.14
Forfeited or canceled	(277,150	)	53.64
Outstanding at September 30, 2015	1,601,321		$	41.34	4.7	$	19,738
Exercisable at September 30, 2015	715,101		$	37.52	3.2	$	11,376

(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 nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	15,764		44.72		15,657		45.81
Vested and issued	(10,041	)	43.78		(20,409	)	39.07
Forfeited or canceled	(598	)	44.26		(2,400	)	36.81
Outstanding at September 30	142,718		$	49.52	138,960		$	48.68
Vested, but not issuable at September 30	88,889		$	51.44	85,000		$	51.88

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the nine months endedSeptember 30, 2016 and September 30, 2015 is presented below:

	Nine months ended September 30, 2016				Nine months ended September 30, 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	118,072		41.02		106,017		44.35
Vested and issued	(78,410	)	37.90		(78,590	)	31.10
Forfeited	(13,229	)	41.12		(33,854	)	32.74
Outstanding at September 30	302,966		$	43.64	289,252		$	43.00
Vested, but deferred at September 30	6,660		$	37.93	—		$	—

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Shareholders' Equity and Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 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 July 1, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,532			1,037			(1,644		)	925
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(2,005		)	646			—			(1,359		)
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	2,295			—			—			2,295
Net other comprehensive income (loss) during the period, net of tax	$	1,822		$	1,683		$	(1,644	)	$	1,861
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income during the period, net of tax, before reclassifications	20,444			66			5,006			25,516
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(3,684		)	1,590			—			(2,094		)
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	$	6,707		$	—		$	—		$	6,707
Net other comprehensive income during the period, net of tax	$	23,467		$	1,656		$	5,006		$	30,129
Balance at September 30, 2016	$	5,793		$	(537	)	$	(37,835	)	$	(32,579	)
Balance at July 1, 2015	$	(26,333	)	$	(2,727	)	$	(32,811	)	$	(61,871	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,995			(287		)	(6,337		)	12,371
Amount reclassified from accumulated other comprehensive (loss) income into net income, net of tax	60			347			—			407
Amount reclassified from accumulated other comprehensive (loss) income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	19,055		$	60		$	(6,337	)	$	12,778
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

	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, 2015	$	(9,533	)	$	(2,517	)	$	(25,282	)	$	(37,332	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	2,499			(1,027		)	(13,866		)	(12,394		)
Amount reclassified from accumulated other comprehensive loss into net income, net of tax	(244		)	877			—			633
Amount reclassified from accumulated other comprehensive loss related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	—			—			—			—
Net other comprehensive income (loss) during the period, net of tax	$	2,255		$	(150	)	$	(13,866	)	$	(11,761	)
Balance at September 30, 2015	$	(7,278	)	$	(2,667	)	$	(39,148	)	$	(49,093	)

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						Nine Months Ended						Impacted Line on the Consolidated Statements of Income
	September 30,						September 30,
	2016			2015			2016			2015
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	3,305		$	(98	)	$	6,070		$	402		Gains (losses) on investment securities, net
	3,305			(98		)	6,070			402			Income before taxes
Tax effect	$	(1,300	)	$	38		$	(2,386	)	$	(158	)	Income tax expense
Net of tax	$	2,005		$	(60	)	$	3,684		$	244		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	528		$	92		$	1,121		$	92		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	537			479			$	1,499		$	1,350		Interest on junior subordinated debentures
	(1,065		)	(571		)	(2,620		)	(1,442		)	Income before taxes
Tax effect	$	419		$	224		$	1,030		$	565		Income tax expense
Net of tax	$	(646	)	$	(347	)	$	(1,590	)	$	(877	)	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				Nine Months Ended
(In thousands, except per share data)		September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
Net income		$	53,115	$	38,355	$	152,267	$	121,238
Less: Preferred stock dividends and discount accretion		3,628		4,079		10,884		7,240
Net income applicable to common shares—Basic	(A)	49,487		34,276		141,383		113,998
Add: Dividends on convertible preferred stock, if dilutive		1,578		1,579		4,735		4,740
Net income applicable to common shares—Diluted	(B)	51,065		35,855		146,118		118,738
Weighted average common shares outstanding	(C)	51,679		48,158		49,763		47,658
Effect of dilutive potential common shares
Common stock equivalents		938		978		822		1,070
Convertible preferred stock, if dilutive		3,109		3,071		3,109		3,071
Total dilutive potential common shares		4,047		4,049		3,931		4,141
Weighted average common shares and effect of dilutive potential common shares	(D)	55,726		52,207		53,694		51,799
Net income per common share:
Basic	(A/C)	$	0.96	$	0.71	$	2.84	$	2.39
Diluted	(B/D)	$	0.92	$	0.69	$	2.72	$	2.29

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Recent Accounting Developments (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015
Accounting Changes and Error Corrections [Abstract]
Debt issuance costs	$ 7.8	$ 8.7

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Business Combinations (Summary of FDIC Indemnification Asset) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
FDIC Indemnification Asset [Roll Forward]
Balance at beginning of period	$ (11,729)	$ 3,429	$ (6,100)	$ 11,846
Additions from acquisitions	0	0	0	0
Additions from reimbursable expenses	21	1,039	752	3,548
Accretion (amortization)	4	(718)	(189)	(3,184)
Changes in expected reimbursements from the FDIC for changes in expected credit losses	(4,537)	(5,236)	(10,284)	(13,546)
Payments received from the FDIC	(1,704)	(1,547)	(2,124)	(1,697)
Balance at end of period	$ (17,945)	$ (3,033)	$ (17,945)	$ (3,033)

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Business Combinations (Narrative) (Detail) $ in Thousands							9 Months Ended
	Aug. 19, 2016 USD ($)	Mar. 31, 2016 USD ($) locations	Jul. 24, 2015 USD ($) locations	Jul. 17, 2015 USD ($) locations	Jul. 02, 2015 USD ($)	Jan. 16, 2015 USD ($) locations	Sep. 30, 2016 USD ($) financial_institution	Jul. 01, 2015 USD ($) locations
Business Acquisition [Line Items]
Goodwill recorded on acquisition							$ 11,470
FDIC loss sharing percentage on purchased loans, OREO, and certain other assets							80.00%
GE Capital Franchise Finance
Business Acquisition [Line Items]
Effective date of acquisition	Aug. 19, 2016
Loans acquired	$ 560,900
Generations Bancorp Inc.
Business Acquisition [Line Items]
Effective date of acquisition		Mar. 31, 2016
Loans acquired		$ 67,400
Assets acquired		$ 131,000
Number of locations | locations		1
Assumed deposits		$ 100,200
Goodwill recorded on acquisition		$ 11,500
Community Financial Shares, Inc.
Business Acquisition [Line Items]
Effective date of acquisition			Jul. 24, 2015
Loans acquired			$ 159,500
Assets acquired			$ 350,500
Number of locations | locations			4
Assumed deposits			$ 290,000
Goodwill recorded on acquisition			$ 27,600
Suburban Illinois Bancorp
Business Acquisition [Line Items]
Effective date of acquisition				Jul. 17, 2015
Loans acquired				$ 257,800
Assets acquired				$ 494,700
Number of locations | locations				10
Assumed deposits				$ 416,700
Goodwill recorded on acquisition				$ 18,600
North Bank
Business Acquisition [Line Items]
Effective date of acquisition					Jul. 01, 2015
Loans acquired								$ 51,600
Assets acquired								$ 117,900
Number of locations | locations								2
Assumed deposits								$ 101,000
Goodwill recorded on acquisition					$ 6,700
Delavan Bancshares
Business Acquisition [Line Items]
Effective date of acquisition						Jan. 16, 2015
Loans acquired						$ 128,000
Assets acquired						$ 224,100
Number of locations | locations						4
Assumed deposits						$ 170,200
Goodwill recorded on acquisition						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 ($)	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	$ 1,637,399,000	$ 1,731,292,000	$ 2,226,376,000
Gross Unrealized Gains	15,136,000	14,766,000	20,153,000
Gross Unrealized Losses	(2,439,000)	(29,670,000)	(32,248,000)
Available-for-sale securities, Fair Value	1,650,096,000	1,716,388,000	2,214,281,000
Held-to-maturity securities, Amortized Cost	932,767,000	884,826,000	0
Held-to-maturity securities, Gross Unrealized Gains	13,092,000	871,000	0
Held-to-maturity securities, Gross Unrealized Losses	(3,193,000)	(7,586,000)	0
Held-to-maturity securities	942,666,000	878,111,000	0
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	30,017,000	312,282,000	288,185,000
Gross Unrealized Gains	19,000	0	101,000
Gross Unrealized Losses	0	(5,553,000)	(2,364,000)
Available-for-sale securities, Fair Value	30,036,000	306,729,000	285,922,000
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	93,561,000	70,313,000	657,297,000
Gross Unrealized Gains	163,000	198,000	2,726,000
Gross Unrealized Losses	(41,000)	(275,000)	(15,000,000)
Available-for-sale securities, Fair Value	93,683,000	70,236,000	645,023,000
Held-to-maturity securities, Amortized Cost	729,417,000	687,302,000	0
Held-to-maturity securities, Gross Unrealized Gains	7,577,000	4,000	0
Held-to-maturity securities, Gross Unrealized Losses	(2,879,000)	(7,144,000)	0
Held-to-maturity securities	734,115,000	680,162,000	0
Municipal
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	106,033,000	105,702,000	294,073,000
Gross Unrealized Gains	3,395,000	3,249,000	5,354,000
Gross Unrealized Losses	(147,000)	(356,000)	(2,085,000)
Available-for-sale securities, Fair Value	109,281,000	108,595,000	297,342,000
Held-to-maturity securities, Amortized Cost	203,350,000	197,524,000	0
Held-to-maturity securities, Gross Unrealized Gains	5,515,000	867,000	0
Held-to-maturity securities, Gross Unrealized Losses	(314,000)	(442,000)	0
Held-to-maturity securities	208,551,000	197,949,000	0
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	65,215,000	80,014,000	114,976,000
Gross Unrealized Gains	299,000	1,510,000	1,656,000
Gross Unrealized Losses	(1,311,000)	(1,481,000)	(1,216,000)
Available-for-sale securities, Fair Value	64,203,000	80,043,000	115,416,000
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	1,000,000	1,500,000	1,525,000
Gross Unrealized Gains	0	4,000	6,000
Gross Unrealized Losses	0	(2,000)	(2,000)
Available-for-sale securities, Fair Value	1,000,000	1,502,000	1,529,000
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	1,257,070,000	1,069,680,000	778,240,000
Gross Unrealized Gains	7,958,000	3,834,000	4,974,000
Gross Unrealized Losses	(54,000)	(21,004,000)	(10,913,000)
Available-for-sale securities, Fair Value	1,264,974,000	1,052,510,000	772,301,000
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	35,935,000	40,421,000	42,724,000
Gross Unrealized Gains	304,000	172,000	343,000
Gross Unrealized Losses	(102,000)	(506,000)	(323,000)
Available-for-sale securities, Fair Value	36,137,000	40,087,000	42,744,000
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	48,568,000	51,380,000	49,356,000
Gross Unrealized Gains	2,998,000	5,799,000	4,993,000
Gross Unrealized Losses	(784,000)	(493,000)	(345,000)
Available-for-sale securities, Fair Value	50,782,000	56,686,000	54,004,000
Mortgage-backed securities, subprime
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Fair Value	$ 0	$ 0	$ 0

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Investment Securities (Investment Securities, Continuous Unrealized Loss Position, Fair Value) (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	$ 77,057
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(592)
Continuous unrealized losses existing for greater than 12 months, Fair value	62,721
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(1,847)
Total, Fair value	139,778
Total, Unrealized losses	(2,439)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	252,325
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(3,083)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,239
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(110)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	261,564
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(3,193)
U.S. Treasury
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
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	35,173
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(41)
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	35,173
Total, Unrealized losses	(41)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	240,400
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(2,879)
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	240,400
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(2,879)
Municipal
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	13,062
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(45)
Continuous unrealized losses existing for greater than 12 months, Fair value	7,766
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(102)
Total, Fair value	20,828
Total, Unrealized losses	(147)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	11,925
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(204)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,239
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(110)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	21,164
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(314)
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	10,000
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(1)
Continuous unrealized losses existing for greater than 12 months, Fair value	34,650
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(1,310)
Total, Fair value	44,650
Total, Unrealized losses	(1,311)
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	1,017
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(22)
Continuous unrealized losses existing for greater than 12 months, Fair value	4,019
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(32)
Total, Fair value	5,036
Total, Unrealized losses	(54)
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	1,255
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(2)
Continuous unrealized losses existing for greater than 12 months, Fair value	7,499
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(100)
Total, Fair value	8,754
Total, Unrealized losses	(102)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	16,550
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(481)
Continuous unrealized losses existing for greater than 12 months, Fair value	8,787
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(303)
Total, Fair value	25,337
Total, Unrealized losses	$ (784)

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Investment Securities (Schedule of Realized Gain (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Realized gains	$ 3,429	$ 87	$ 7,466	$ 654
Realized losses	(124)	(185)	(1,396)	(252)
Net realized gains (losses)	3,305	(98)	6,070	402
Other than temporary impairment charges	0	0	0	0
Gains (losses) on investment securities, net	3,305	(98)	6,070	402
Proceeds from sales and calls of available-for-sale securities	1,114,666	82,827	2,186,662	1,216,860
Proceeds from calls of held-to-maturity securities	$ 141,885	$ 0	$ 423,866	$ 0

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Investment Securities (Investments Classified by Contractual Maturity Date) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 115,227	$ 160,856	$ 164,374
Due in one to five years, Amortized Cost	141,364	166,550	186,199
Due in five to ten years, Amortized Cost	28,696	228,652	343,468
Due after ten years, Amortized Cost	10,539	13,753	662,015
Amortized Cost	1,637,399	1,731,292	2,226,376
Due in one year or less, Fair Value	115,487	160,756	164,429
Due in one to five years, Fair Value	141,368	166,468	186,592
Due in five to ten years, Fair Value	31,319	225,699	342,271
Due after ten years, Fair Value	10,029	14,182	651,940
Available-for-sale securities	1,650,096	1,716,388	2,214,281
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	25,927	19,208	0
Held-to-maturity securities, Due in five to ten years, Amortized Cost	64,835	96,454	0
Held-to-maturity securities, Due after ten years, Amortized Cost	842,005	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	26,023	19,156	0
Held-to-maturity securities, Due in five to ten years, Fair Value	65,842	96,091	0
Held-to-maturity securities, Due after ten years, Fair Value	850,801	762,864	0
Held-to-maturity securities, Amortized Cost	932,767	884,826	0
Held-to-maturity securities, Fair Value	942,666	878,111	0
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,293,005	1,110,101	820,964
Available-for-sale securities	1,301,111	1,092,597	815,045
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	48,568	51,380	49,356
Available-for-sale securities	$ 50,782	$ 56,686	$ 54,004

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Investment Securities (Narrative) (Detail) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($) securities	Sep. 30, 2015 USD ($)
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Available-for-sale securities, transferred to held-to-maturity securities	$ 862.7	$ 0.0
Available-for-sale securities, transferred to held-to-maturity, unrealized gain (loss)	14.4
Pledged Securities, carrying value	$ 1,200.0	$ 1,400.0	$ 1,300.0
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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 19,101,261	$ 17,118,117	$ 16,316,211
Covered loans	95,940	148,673	168,609
Total loans	$ 19,197,201	$ 17,266,790	$ 16,484,820
Total loans, net of unearned income, excluding covered loans, percentage	100.00%	99.00%	99.00%
Covered loans, percentage	0.00%	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	$ 5,951,544	$ 4,713,909	$ 4,400,185
Total loans, net of unearned income, excluding covered loans, percentage	31.00%	27.00%	27.00%
Commercial real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 5,908,684	$ 5,529,289	$ 5,307,566
Total loans, net of unearned income, excluding covered loans, percentage	31.00%	32.00%	32.00%
Home equity
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 742,868	$ 784,675	$ 797,465
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	$ 663,598	$ 607,451	$ 571,743
Total loans, net of unearned income, excluding covered loans, percentage	3.00%	3.00%	3.00%
Consumer and other
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 120,975	$ 146,376	$ 131,902
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	$ 2,430,233	$ 2,374,921	$ 2,407,075
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	$ 3,283,359	$ 2,961,496	$ 2,700,275
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	Sep. 30, 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	$ 278,862	$ 326,470
Carrying Value	233,340	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	266,618	372,738
Carrying Value	$ 262,887	$ 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	$ 20,091
Less: Nonaccretable difference	4,009
Cash flows expected to be collected	16,082
Less: Accretable yield	1,082
Fair value of PCI loans acquired	$ 15,000

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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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance	$ 55,630	$ 63,643	$ 63,902	$ 79,102
Acquisitions	0	10,407	1,082	11,305
Accretable yield amortized to interest income	(6,449)	(5,939)	(17,105)	(18,359)
Accretable yield amortized to indemnification asset/liability	(1,744)	(3,280)	(5,539)	(10,945)
Reclassification from non-accretable difference	5,370	2,298	12,099	5,154
Increases (decreases) in interest cash flows due to payments and changes in interest rates	170	(610)	(1,462)	262
Accretable yield, ending balance	52,977	$ 66,519	52,977	$ 66,519
Accretable yield, to be amortized to indemnification asset	$ 1,500		$ 1,500

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Loans (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Schedule Of Accretable Yield Activity Related to Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination Table [Line Items]
Net deferred loan fees and costs and fair value accounting adjustments	$ 873	$ (18,800)	$ 873	$ (18,800)	$ (9,200)
Accretable yield amortized to interest income	(6,449)	(5,939)	(17,105)	(18,359)
Premium finance receivables
Schedule Of Accretable Yield Activity Related to Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination Table [Line Items]
Unearned income portion of premium finance receivables	$ 64,400	$ 53,400	$ 64,400	$ 53,400	$ 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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 77,645	$ 78,950	$ 84,145
90+ days and still accruing	37,396	41,872	30,185
Current	18,958,594	16,993,266	16,271,836
Loans, net of unearned income, excluding covered loans	19,101,261	17,118,117	16,316,211
Nonaccrual	75,314	73,072	77,605
90+ days and still accruing	32,590	34,537	22,559
Current	18,873,792	16,864,283	16,119,587
Covered loans, Nonaccrual	2,331	5,878	6,540
Covered loans, 90 plus days and still accruing	4,806	7,335	7,626
Covered loans, Current	84,802	128,983	152,249
Covered loans	95,940	148,673	168,609
Total loans	19,197,201	17,266,790	16,484,820
60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	50,671	42,806	40,421
60-89 days past due	49,126	42,103	39,029
Covered loans, 60-89 days past due	1,545	703	1,392
30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	72,895	109,896	58,233
30-59 days past due	70,439	104,122	57,431
Covered loans, 30-59 days past due	2,456	5,774	802
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	16,418	12,712	12,018
90+ days and still accruing	1,783	1,433	217
Current	5,906,160	4,666,927	4,373,322
Loans, net of unearned income, excluding covered loans	5,951,544	4,713,909	4,400,185
Commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	11,793	11,361	4,168
Commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	15,390	21,476	10,460
Commercial | Commercial, industrial and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	15,809	12,704	12,006
90+ days and still accruing	0	6	0
Current	3,573,396	3,226,139	2,985,985
Loans, net of unearned income, excluding covered loans	3,605,516	3,258,528	3,010,475
Commercial | Commercial, industrial and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,324	6,749	2,775
Commercial | Commercial, industrial and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	8,987	12,930	9,709
Commercial | Franchise
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	0	0	0
Current	872,661	245,228	221,545
Loans, net of unearned income, excluding covered loans	874,745	245,228	222,001
Commercial | Franchise | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	458	0	80
Commercial | Franchise | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,626	0	376
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	309,632	222,806	136,614
Loans, net of unearned income, excluding covered loans	309,632	222,806	136,614
Commercial | Mortgage warehouse lines of credit | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	0
Commercial | Mortgage warehouse lines of credit | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	0
Commercial | Asset-based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	234	8	12
90+ days and still accruing	0	0	0
Current	837,972	736,968	800,798
Loans, net of unearned income, excluding covered loans	845,719	742,684	802,370
Commercial | Asset-based lending | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,772	3,864	1,313
Commercial | Asset-based lending | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,741	1,844	247
Commercial | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	375	0	0
90+ days and still accruing	0	535	0
Current	299,339	220,599	205,697
Loans, net of unearned income, excluding covered loans	299,953	226,074	205,786
Commercial | Leases | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	239	748	0
Commercial | Leases | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	4,192	89
Commercial | PCI - commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	1,783	892	217
Current	13,160	15,187	22,683
Loans, net of unearned income, excluding covered loans	15,979	18,589	22,939
Commercial | PCI - commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	0
Commercial | PCI - commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,036	2,510	39
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	22,625	26,645	28,617
90+ days and still accruing	21,433	22,111	13,547
Current	5,813,145	5,424,863	5,225,048
Loans, net of unearned income, excluding covered loans	5,908,684	5,529,289	5,307,566
Commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	16,241	16,427	16,334
Commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	35,240	39,243	24,020
Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	400	306	31
90+ days and still accruing	0	0	0
Current	447,302	355,338	343,668
Loans, net of unearned income, excluding covered loans	451,477	358,660	347,234
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	3,775	1,645	3,535
Commercial real estate | Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,208	1,751	1,756
90+ days and still accruing	0	0	0
Current	105,406	76,546	75,113
Loans, net of unearned income, excluding covered loans	107,701	78,417	79,076
Commercial real estate | Land | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	787	0	0
Commercial real estate | Land | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	300	120	2,207
Commercial real estate | Office
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,609	4,619	4,045
90+ days and still accruing	0	0	0
Current	865,954	853,801	773,043
Loans, net of unearned income, excluding covered loans	884,082	863,001	790,311
Commercial real estate | Office | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	6,457	764	10,861
Commercial real estate | Office | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	8,062	3,817	2,362
Commercial real estate | Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,967	9,564	11,637
90+ days and still accruing	0	0	0
Current	753,636	715,207	622,804
Loans, net of unearned income, excluding covered loans	767,504	727,648	636,124
Commercial real estate | Industrial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	940	1,868	786
Commercial real estate | Industrial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,961	1,009	897
Commercial real estate | Retail
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	909	1,760	2,022
90+ days and still accruing	0	0	0
Current	884,369	863,887	781,463
Loans, net of unearned income, excluding covered loans	895,341	868,399	785,842
Commercial real estate | Retail | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,340	442	1,536
Commercial real estate | Retail | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	8,723	2,310	821
Commercial real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	90	1,954	1,525
90+ days and still accruing	0	0	0
Current	789,645	733,230	684,878
Loans, net of unearned income, excluding covered loans	794,955	742,349	687,659
Commercial real estate | Multi-family | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,051	597	512
Commercial real estate | Multi-family | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,169	6,568	744
Commercial real estate | Mixed use and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	6,442	6,691	7,601
90+ days and still accruing	0	0	0
Current	1,837,724	1,712,187	1,797,516
Loans, net of unearned income, excluding covered loans	1,851,507	1,732,816	1,820,328
Commercial real estate | Mixed use and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,157	6,723	2,340
Commercial real estate | Mixed use and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	5,184	7,215	12,871
Commercial real estate | PCI - commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	21,433	22,111	13,547
Current	129,109	114,667	146,563
Loans, net of unearned income, excluding covered loans	156,117	157,999	160,992
Commercial real estate | PCI - commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,509	4,662	299
Commercial real estate | PCI - commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	4,066	16,559	583
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,309	6,848	8,365
90+ days and still accruing	0	0	0
Current	727,989	770,421	784,165
Loans, net of unearned income, excluding covered loans	742,868	784,675	797,465
Home equity | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,728	1,889	811
Home equity | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,842	5,517	4,124
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	12,205	12,043	14,557
90+ days and still accruing	1,496	488	424
Current	646,577	588,851	553,816
Loans, net of unearned income, excluding covered loans	663,598	607,451	571,743
Residential real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,232	2,166	1,340
Residential real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,088	3,903	1,606
Premium finance receivables | Commercial insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	14,214	14,561	13,751
90+ days and still accruing	7,754	10,294	8,231
Current	2,391,006	2,321,786	2,364,770
Loans, net of unearned income, excluding covered loans	2,430,233	2,374,921	2,407,075
Premium finance receivables | Commercial insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	6,968	6,624	6,664
Premium finance receivables | Commercial insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	10,291	21,656	13,659
Premium finance receivables | Life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	0	0	0
Current	3,006,795	2,578,632	2,314,406
Loans, net of unearned income, excluding covered loans	3,020,472	2,593,204	2,326,689
Premium finance receivables | Life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9,960	3,432	9,656
Premium finance receivables | Life insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,717	11,140	2,627
Premium finance receivables | PCI - life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	0	0	0
Current	262,887	368,292	373,586
Loans, net of unearned income, excluding covered loans	262,887	368,292	373,586
Premium finance receivables | PCI - life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	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	0	0	0
Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	543	263	297
90+ days and still accruing	124	211	140
Current	119,233	144,511	130,474
Loans, net of unearned income, excluding covered loans	120,975	146,376	131,902
Consumer and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	204	204	56
Consumer and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 871	$ 1,187	$ 935

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Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Performance by Loan Class) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	$ 19,101,261	$ 17,118,117	$ 16,316,211
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	5,951,544	4,713,909	4,400,185
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	5,908,684	5,529,289	5,307,566
Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	742,868	784,675	797,465
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	663,598	607,451	571,743
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	120,975	146,376	131,902
Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,605,516	3,258,528	3,010,475
Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	874,745	245,228	222,001
Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	309,632	222,806	136,614
Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	845,719	742,684	802,370
Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	299,953	226,074	205,786
PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	15,979	18,589	22,939
Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	451,477	358,660	347,234
Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	107,701	78,417	79,076
Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	884,082	863,001	790,311
Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	767,504	727,648	636,124
Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	895,341	868,399	785,842
Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	794,955	742,349	687,659
Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	1,851,507	1,732,816	1,820,328
PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	156,117	157,999	160,992
Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,430,233	2,374,921	2,407,075
Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,020,472	2,593,204	2,326,689
PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	262,887	368,292	373,586
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	19,018,133	17,034,060	16,230,235
Performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	5,935,126	4,700,656	4,388,167
Performing | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	5,886,059	5,502,644	5,278,949
Performing | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	733,559	777,827	789,100
Performing | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	651,393	595,408	557,186
Performing | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	120,372	145,963	131,465
Performing | Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,589,707	3,245,818	2,998,469
Performing | Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	874,745	245,228	222,001
Performing | Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	309,632	222,806	136,614
Performing | Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	845,485	742,676	802,358
Performing | Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	299,578	225,539	205,786
Performing | PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	15,979	18,589	22,939
Performing | Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	451,077	358,354	347,203
Performing | Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	106,493	76,666	77,320
Performing | Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	880,473	858,382	786,266
Performing | Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	757,537	718,084	624,487
Performing | Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	894,432	866,639	783,820
Performing | Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	794,865	740,395	686,134
Performing | Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	1,845,065	1,726,125	1,812,727
Performing | PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	156,117	157,999	160,992
Performing | Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,408,265	2,350,066	2,385,093
Performing | Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,020,472	2,593,204	2,326,689
Performing | PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	262,887	368,292	373,586
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	83,128	84,057	85,976
Non-performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	16,418	13,253	12,018
Non-performing | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	22,625	26,645	28,617
Non-performing | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	9,309	6,848	8,365
Non-performing | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	12,205	12,043	14,557
Non-performing | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	603	413	437
Non-performing | Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	15,809	12,710	12,006
Non-performing | Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	0	0	0
Non-performing | Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	0	0	0
Non-performing | Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	234	8	12
Non-performing | Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	375	535	0
Non-performing | PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	0	0	0
Non-performing | Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	400	306	31
Non-performing | Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	1,208	1,751	1,756
Non-performing | Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,609	4,619	4,045
Non-performing | Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	9,967	9,564	11,637
Non-performing | Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	909	1,760	2,022
Non-performing | Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	90	1,954	1,525
Non-performing | Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	6,442	6,691	7,601
Non-performing | PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	0	0	0
Non-performing | Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	21,968	24,855	21,982
Non-performing | Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	0	0	0
Non-performing | PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	$ 0	$ 0	$ 0

XML

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	$ 114,356	$ 100,204	$ 105,400	$ 91,705
Other adjustments	(112)	(153)	(324)	(494)
Reclassification from allowance for unfunded lending-related commitments	(579)	(42)	(700)	(151)
Charge-offs	(6,907)	(6,877)	(18,478)	(17,658)
Recoveries	1,194	1,199	4,362	5,043
Provision for credit losses	9,741	8,665	27,433	24,551
Allowance for loan losses at period end	117,693	102,996	117,693	102,996
Allowance for unfunded lending-related commitments at period end	1,648	926	1,648	926
Allowance for credit losses at period end	119,341	103,922	119,341	103,922
Allowance for credit losses at period end, Individually evaluated for impairment	7,367	8,526	7,367	8,526
Allowance for credit losses at period end, Collectively evaluated for impairment	111,150	94,435	111,150	94,435
Loans at period end, Individually evaluated for impairment	91,374	114,220	91,374	114,220
Loans at period end, Collectively evaluated for impairment	18,569,768	15,640,792	18,569,768	15,640,792
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	824	961	824	961
Loans at period end, Loans acquired with deteriorated credit quality	440,119	561,199	440,119	561,199
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	41,654	32,900	36,135	31,699
Other adjustments	(35)	(12)	(103)	(42)
Reclassification from allowance for unfunded lending-related commitments	(500)	0	(500)	0
Charge-offs	(3,469)	(964)	(4,861)	(2,884)
Recoveries	176	462	926	1,117
Provision for credit losses	5,212	1,604	11,441	4,100
Allowance for loan losses at period end	43,038	33,990	43,038	33,990
Allowance for unfunded lending-related commitments at period end	500	0	500	0
Allowance for credit losses at period end	43,538	33,990	43,538	33,990
Allowance for credit losses at period end, Individually evaluated for impairment	2,554	1,881	2,554	1,881
Allowance for credit losses at period end, Collectively evaluated for impairment	40,252	31,943	40,252	31,943
Loans at period end, Individually evaluated for impairment	19,133	18,211	19,133	18,211
Loans at period end, Collectively evaluated for impairment	5,916,432	4,359,035	5,916,432	4,359,035
Commercial | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	732	166	732	166
Loans at period end, Loans acquired with deteriorated credit quality	15,979	22,939	15,979	22,939
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	46,824	42,198	43,758	35,533
Other adjustments	(57)	(85)	(203)	(346)
Reclassification from allowance for unfunded lending-related commitments	(79)	(42)	(200)	(151)
Charge-offs	(382)	(1,948)	(1,555)	(3,809)
Recoveries	364	213	1,029	2,349
Provision for credit losses	1,678	3,725	5,519	10,485
Allowance for loan losses at period end	48,348	44,061	48,348	44,061
Allowance for unfunded lending-related commitments at period end	1,148	926	1,148	926
Allowance for credit losses at period end	49,496	44,987	49,496	44,987
Allowance for credit losses at period end, Individually evaluated for impairment	2,491	5,832	2,491	5,832
Allowance for credit losses at period end, Collectively evaluated for impairment	46,983	38,361	46,983	38,361
Loans at period end, Individually evaluated for impairment	45,290	68,947	45,290	68,947
Loans at period end, Collectively evaluated for impairment	5,707,277	5,077,627	5,707,277	5,077,627
Commercial real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	22	794	22	794
Loans at period end, Loans acquired with deteriorated credit quality	156,117	160,992	156,117	160,992
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	11,383	12,288	12,012	12,500
Other adjustments	0	0	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(574)	(1,116)	(3,672)	(3,547)
Recoveries	65	42	184	129
Provision for credit losses	810	1,009	3,160	3,141
Allowance for loan losses at period end	11,684	12,223	11,684	12,223
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	11,684	12,223	11,684	12,223
Allowance for credit losses at period end, Individually evaluated for impairment	964	239	964	239
Allowance for credit losses at period end, Collectively evaluated for impairment	10,720	11,984	10,720	11,984
Loans at period end, Individually evaluated for impairment	9,309	8,365	9,309	8,365
Loans at period end, Collectively evaluated for impairment	733,559	789,100	733,559	789,100
Home equity | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	0	0	0	0
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	5,405	5,019	4,734	4,218
Other adjustments	(10)	(6)	(49)	(14)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(134)	(1,138)	(1,320)	(2,692)
Recoveries	61	136	204	228
Provision for credit losses	781	575	2,534	2,846
Allowance for loan losses at period end	6,103	4,586	6,103	4,586
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	6,103	4,586	6,103	4,586
Allowance for credit losses at period end, Individually evaluated for impairment	1,166	544	1,166	544
Allowance for credit losses at period end, Collectively evaluated for impairment	4,867	4,042	4,867	4,042
Loans at period end, Individually evaluated for impairment	17,040	18,267	17,040	18,267
Loans at period end, Collectively evaluated for impairment	642,633	549,794	642,633	549,794
Residential real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	70	0	70	0
Loans at period end, Loans acquired with deteriorated credit quality	3,925	3,682	3,925	3,682
Premium finance receivables
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	7,814	6,921	7,233	6,513
Other adjustments	(10)	(50)	31	(92)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,959)	(1,595)	(6,350)	(4,384)
Recoveries	456	294	1,876	1,081
Provision for credit losses	974	1,511	4,485	3,963
Allowance for loan losses at period end	7,275	7,081	7,275	7,081
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	7,275	7,081	7,275	7,081
Allowance for credit losses at period end, Individually evaluated for impairment	0	0	0	0
Allowance for credit losses at period end, Collectively evaluated for impairment	7,275	7,081	7,275	7,081
Loans at period end, Individually evaluated for impairment	0	0	0	0
Loans at period end, Collectively evaluated for impairment	5,450,705	4,733,764	5,450,705	4,733,764
Premium finance receivables | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	262,887	373,586	262,887	373,586
Consumer and other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	1,276	878	1,528	1,242
Other adjustments	0	0	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(389)	(116)	(720)	(342)
Recoveries	72	52	143	139
Provision for credit losses	286	241	294	16
Allowance for loan losses at period end	1,245	1,055	1,245	1,055
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	1,245	1,055	1,245	1,055
Allowance for credit losses at period end, Individually evaluated for impairment	192	30	192	30
Allowance for credit losses at period end, Collectively evaluated for impairment	1,053	1,024	1,053	1,024
Loans at period end, Individually evaluated for impairment	602	430	602	430
Loans at period end, Collectively evaluated for impairment	119,162	131,472	119,162	131,472
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	1	0	1
Loans at period end, Loans acquired with deteriorated credit quality	$ 1,211	$ 0	$ 1,211	$ 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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Allowance for Covered Loan Losses [Roll Forward]
Balance at beginning of period	$ 2,412	$ 2,215	$ 3,026	$ 2,131
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(847)	(1,716)	(3,495)	(3,339)
Benefit attributable to FDIC loss share agreements	677	1,373	2,796	2,671
Net provision for covered loan losses	(170)	(343)	(699)	(668)
Increase/decrease in FDIC indemnification liability/asset	(677)	(1,373)	(2,796)	(2,671)
Loans charged-off	(918)	(287)	(1,291)	(664)
Recoveries of loans charged-off	775	2,706	3,182	4,790
Net (charge-offs) recoveries	(143)	2,419	1,891	4,126
Balance at end of period	$ 1,422	$ 2,918	$ 1,422	$ 2,918

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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance for loan loss required	$ 39,022	$ 49,961	$ 51,113
Impaired loans with no allowance for loan loss required	51,518	51,294	61,914
Total impaired loans	90,540	101,255	113,027
Allowance for loan losses related to impaired loans	6,836	6,380	8,483
Financing Receivable
Financing Receivable, Impaired [Line Items]
Allowance for loan losses related to impaired loans	2,800
TDRs	$ 44,276	$ 51,853	$ 59,320

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	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 39,022	$ 51,113	$ 49,961
Impaired Financing Receivable, Related Allowance	6,836	8,483	6,380
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	51,518	61,914	51,294
Impaired Financing Receivable, Recorded Investment	90,540	113,027	101,255
Impaired Financing Receivable, Unpaid Principal Balance	106,758	132,788	124,249
Impaired Financing Receivable, Average Recorded Investment	94,750	116,642	107,170
Impaired Financing Receivable, Interest Income Recognized	4,066	4,731	6,198
Commercial | Commercial, industrial and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,426	8,580	9,754
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,434	9,118	12,498
Impaired Financing Receivable, Related Allowance	1,887	1,865	2,012
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	5,487	8,906	10,123
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	212	381	792
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	12,669	9,142	8,562
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	16,261	11,997	9,915
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	14,745	9,716	9,885
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	717	539	521
Commercial | Asset-based lending
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	234	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	235	0	0
Impaired Financing Receivable, Related Allowance	44	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	235	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	7	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	12	8
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	1,573	1,570
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	4	5
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	0	66	88
Commercial | Leases
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	375	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	375	0	0
Impaired Financing Receivable, Related Allowance	116	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	388	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	14	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	0	0	0
Commercial real estate | 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	1,995	2,054	2,328
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,995	2,055	2,329
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,273	2,034	2,316
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	94	73	113
Commercial real estate | Land
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,620	3,559	4,929
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,620	7,309	8,711
Impaired Financing Receivable, Related Allowance	44	31	41
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,670	3,713	5,127
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	80	362	547
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,864	4,114	888
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	8,088	4,874	2,373
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,316	4,232	929
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	408	130	90
Commercial real estate | Office
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,697	6,765	5,050
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,361	7,724	6,051
Impaired Financing Receivable, Related Allowance	182	2,162	632
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,722	7,113	5,394
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	79	263	314
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	4,980	4,171	3,500
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	6,243	5,120	4,484
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,978	4,243	3,613
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	260	194	237
Commercial real estate | Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	6,855	10,049	8,413
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	7,338	10,542	9,105
Impaired Financing Receivable, Related Allowance	1,388	1,550	1,943
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	7,069	10,662	10,590
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	284	421	565
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,508	2,255	2,217
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,827	2,448	2,426
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,574	2,304	2,286
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	200	141	188
Commercial real estate | Retail
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	6,605	8,899	8,527
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	6,623	9,596	9,230
Impaired Financing Receivable, Related Allowance	240	381	343
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	6,668	8,906	8,596
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	160	306	386
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	805	3,140	2,757
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	913	3,302	2,925
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	936	3,305	2,897
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	36	104	129
Commercial real estate | Multi-family
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,266	1,199	370
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,266	1,622	370
Impaired Financing Receivable, Related Allowance	8	203	202
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,134	1,210	372
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	29	60	25
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	89	1,330	2,344
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	174	1,635	2,807
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	109	1,522	2,390
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	5	50	117
Commercial real estate | Mixed use and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,437	7,162	7,590
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,511	7,345	7,708
Impaired Financing Receivable, Related Allowance	605	1,501	570
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	5,452	7,250	7,681
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	198	224	328
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,164	13,788	10,510
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	5,712	16,576	14,060
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	5,300	14,668	11,939
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	236	563	624
Home equity
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,373	547	423
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,457	762	435
Impaired Financing Receivable, Related Allowance	964	239	333
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,404	672	351
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	63	25	16
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	6,936	7,818	6,424
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	9,108	8,406	7,987
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	7,736	7,065	5,738
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	320	229	288
Residential real estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,942	4,225	4,710
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	6,428	4,326	4,799
Impaired Financing Receivable, Related Allowance	1,166	521	294
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	5,807	4,280	4,618
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	190	130	182
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	11,098	13,788	11,559
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	13,077	15,932	13,979
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	11,125	14,387	11,903
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	445	449	624
Consumer and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	192	128	195
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	192	128	220
Impaired Financing Receivable, Related Allowance	192	30	10
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	194	139	216
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	8	6	12
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	410	302	197
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	520	398	267
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	428	311	201
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	$ 21	$ 15	$ 12

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		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) contracts	Sep. 30, 2015 USD ($) contracts	Sep. 30, 2016 USD ($) contracts	Sep. 30, 2015 USD ($) contracts	Sep. 30, 2016 USD ($) Loan	Sep. 30, 2015 USD ($) Loan
Financing Receivable, Modifications [Line Items]
TDRs, number	2	1	15	10	17	15
TDRs, Additions	$ 71	$ 222	$ 9,449	$ 1,833	$ 9,650	$ 5,648
Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	2	1	14	10
TDRs, Additions	$ 71	$ 222	$ 9,289	$ 1,833
Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	1	1	6	5
TDRs, Additions	$ 43	$ 222	$ 7,779	$ 674
Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1	2
TDRs, Additions	$ 0	$ 0	$ 380	$ 219
Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1	0
TDRs, Additions	$ 0	$ 0	$ 275	$ 0
Residential real estate and other
Financing Receivable, Modifications [Line Items]
TDRs, number	1	1	3	9	3	11
TDRs, Additions	$ 43	$ 222	$ 583	$ 1,664	$ 583	$ 2,613
Residential real estate and other | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	1	1	2	9
TDRs, Additions	$ 43	$ 222	$ 423	$ 1,664
Residential real estate and other | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	1	1	3	5
TDRs, Additions	$ 43	$ 222	$ 583	$ 674
Residential real estate and other | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1	1
TDRs, Additions	$ 0	$ 0	$ 380	$ 50
Residential real estate and other | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Commercial, industrial and other | Commercial
Financing Receivable, Modifications [Line Items]
TDRs, number	1	0	3	0	3	1
TDRs, Additions	$ 28	$ 0	$ 345	$ 0	$ 345	$ 1,461
Commercial, industrial and other | Commercial | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	1	0	3	0
TDRs, Additions	$ 28	$ 0	$ 345	$ 0
Commercial, industrial and other | Commercial | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Commercial, industrial and other | Commercial | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Commercial, industrial and other | Commercial | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1	0
TDRs, Additions	$ 0	$ 0	$ 275	$ 0
Office | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number	0	0	1		1	1
TDRs, Additions	$ 0	$ 0	$ 450		$ 450	$ 720
Office | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1
TDRs, Additions	$ 0	$ 0	$ 450
Office | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Office | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0
Office | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Industrial | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number	0	0	6	1	6	2
TDRs, Additions	$ 0	$ 0	$ 7,921	$ 169	$ 7,921	$ 854
Industrial | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	6	1
TDRs, Additions	$ 0	$ 0	$ 7,921	$ 169
Industrial | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	3	0
TDRs, Additions	$ 0	$ 0	$ 7,196	$ 0
Industrial | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	1
TDRs, Additions	$ 0	$ 0	$ 0	$ 169
Industrial | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Mixed use and other | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number	0	0	2	0	4	0
TDRs, Additions	$ 0	$ 0	$ 150	$ 0	$ 351	$ 0
Mixed use and other | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	2	0
TDRs, Additions	$ 0	$ 0	$ 150	$ 0
Mixed use and other | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Mixed use and other | Commercial real estate | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0
Mixed use and other | Commercial real estate | Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	0
TDRs, Additions	$ 0	$ 0	$ 0	$ 0

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		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) contracts Loan	Sep. 30, 2015 USD ($) contracts Loan	Sep. 30, 2016 USD ($) contracts Loan	Sep. 30, 2015 USD ($) contracts Loan	Sep. 30, 2016 USD ($) Loan	Sep. 30, 2015 USD ($) Loan
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	2	1	15	10	17	15
Total, Balance	$ 71	$ 222	$ 9,449	$ 1,833	$ 9,650	$ 5,648
Subsequent Default, Count | Loan	5	3	7	4
Subsequent Default, Balance	$ 1,191	$ 816	$ 1,392	$ 1,030
Commercial | Commercial, industrial and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	1	0	3	0	3	1
Total, Balance	$ 28	$ 0	$ 345	$ 0	$ 345	$ 1,461
Subsequent Default, Count | Loan	0	0	0	0
Subsequent Default, Balance	$ 0	$ 0	$ 0	$ 0
Commercial real estate | Office
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	0	1		1	1
Total, Balance	$ 0	$ 0	$ 450		$ 450	$ 720
Subsequent Default, Count | Loan	1	0	1	0
Subsequent Default, Balance	$ 450	$ 0	$ 450	$ 0
Commercial real estate | Industrial
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	0	6	1	6	2
Total, Balance	$ 0	$ 0	$ 7,921	$ 169	$ 7,921	$ 854
Subsequent Default, Count | Loan	3	1	3	1
Subsequent Default, Balance	$ 725	$ 685	$ 725	$ 685
Commercial real estate | Mixed use and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	0	2	0	4	0
Total, Balance	$ 0	$ 0	$ 150	$ 0	$ 351	$ 0
Subsequent Default, Count | Loan	1	0	3	0
Subsequent Default, Balance	$ 16	$ 0	$ 217	$ 0
Residential real estate and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	1	1	3	9	3	11
Total, Balance	$ 43	$ 222	$ 583	$ 1,664	$ 583	$ 2,613
Subsequent Default, Count | Loan	0	2	0	3
Subsequent Default, Balance	$ 0	$ 131	$ 0	$ 345

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Narrative) (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) contracts Rate	Sep. 30, 2015 USD ($) contracts Rate	Sep. 30, 2016 USD ($) contracts Rate	Sep. 30, 2015 USD ($) contracts Rate	Sep. 30, 2016 USD ($) Loan	Sep. 30, 2015 USD ($) Loan	Dec. 31, 2015 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number	2	1	15	10	17	15
Allowance for loan losses related to impaired loans	$ 6,836,000	$ 8,483,000	$ 6,836,000	$ 8,483,000	$ 6,836,000	$ 8,483,000	$ 6,380,000
TDRs, Additions	$ 71,000	$ 222,000	$ 9,449,000	$ 1,833,000	9,650,000	5,648,000
Weighted average extension term	22 months	214 months	6 months	49 months
Weighted average stated interest rate, basis points | Rate	1.50%	3.38%	0.30%	3.58%
Weighted average interest only term			6 months	28 months
Loan forgiveness	$ 0	$ 0	$ 300,000	$ 0
Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs	44,276,000	59,320,000	$ 44,276,000	59,320,000	44,276,000	$ 59,320,000	$ 51,853,000
TDRs, number | contracts			89
Allowance for loan losses related to impaired loans	2,800,000		$ 2,800,000		2,800,000
Interest income, passage of time	98,000	$ 98,000	323,000	$ 385,000
Residential Real Estate | Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Foreclosed residential properties	$ 11,700,000		$ 11,700,000		$ 11,700,000

XML

Goodwill And Other Intangible Assets (Goodwill Assets by Business Segment) (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 471,761
Goodwill Acquired	11,470
Impairment Loss	0
Goodwill Adjustments	2,707
Ending balance	485,938
Community banking
Goodwill [Roll Forward]
Beginning balance	401,612
Goodwill Acquired	11,470
Impairment Loss	0
Goodwill Adjustments	1,517
Ending balance	414,599
Specialty finance
Goodwill [Roll Forward]
Beginning balance	38,035
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	1,190
Ending balance	39,225
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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	$ 20,736	$ 24,209	$ 25,533
Core deposit intangibles | Community banking
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	34,998	34,841	34,840
Accumulated amortization	(20,598)	(17,382)	(16,195)
Net carrying amount	14,400	17,459	18,645
Customer list intangibles | Specialty finance
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,800	1,800	1,800
Accumulated amortization	(1,129)	(1,052)	(1,027)
Net carrying amount	671	748	773
Customer list and other intangibles | Wealth management
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,940	7,940	7,940
Accumulated amortization	(2,275)	(1,938)	(1,825)
Net carrying amount	$ 5,665	$ 6,002	$ 6,115

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Goodwill And Other Intangible Assets (Estimated Amortization) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Actual in nine months ended September 30, 2016	$ 1,085	$ 1,350	$ 3,631	$ 3,297
Estimated remaining in 2016	1,057		1,057
Estimated—2017	3,902		3,902
Estimated—2018	3,395		3,395
Estimated—2019	2,875		2,875
Estimated—2020	$ 2,334		$ 2,334

XML

Goodwill And Other Intangible Assets (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase due to foreign currency translation adjustments			$ 2,707
Amortization of other intangible assets	$ 1,085	$ 1,350	3,631	$ 3,297
Community banking
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase			13,000
Goodwill increase due to foreign currency translation adjustments			$ 1,517
Community banking | Core deposit intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets			10 years
Specialty finance
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase due to foreign currency translation adjustments			$ 1,190
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 increase due to foreign currency translation 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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Balance:
Non-interest bearing	$ 5,711,042	$ 4,836,420	$ 4,705,994
NOW and interest bearing demand deposits	2,552,611	2,390,217	2,231,258
Wealth management deposits	2,283,233	1,643,653	1,469,920
Money market	4,421,631	4,041,300	4,001,518
Savings	1,977,661	1,723,367	1,684,007
Time certificates of deposit	4,201,477	4,004,677	4,135,772
Total deposits	$ 21,147,655	$ 18,639,634	$ 18,228,469
Mix:
Non-interest bearing	27.00%	26.00%	26.00%
NOW and interest bearing demand deposits	12.00%	13.00%	12.00%
Wealth management deposits	11.00%	9.00%	8.00%
Money market	21.00%	22.00%	22.00%
Savings	9.00%	9.00%	9.00%
Time certificates of deposit	20.00%	21.00%	23.00%
Total deposits	100.00%	100.00%	100.00%

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Debt Disclosure [Abstract]
FHLB advances	$ 419,632	$ 853,431	$ 443,955
Other borrowings:
Notes payable	56,191	67,429	71,250
Short-term borrowings	33,173	63,887	57,590
Other	18,360	18,965	18,332
Secured borrowings	133,642	115,504	112,633
Total other borrowings	241,366	265,785	259,805
Subordinated notes	138,943	138,861	138,834
Total FHLB advances, other borrowings and subordinated notes	$ 799,941	$ 1,258,077	$ 842,594

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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess pledged collateral	$ 10,921
Securities sold under agreements to repurchase	33,173
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	44,100
Securities sold under agreements to repurchase	33,200	$ 58,900	$ 57,600
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	44,094
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	3,945
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	19,853
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	$ 20,296

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Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Narrative) (Details) CAD in Millions	1 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2015 CAD	Dec. 31, 2014 CAD	Sep. 30, 2016 USD ($) Rate	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CAD	Sep. 30, 2015 USD ($)	Jun. 15, 2015 USD ($)
Debt Instrument [Line Items]
Notes payable			$ 56,191,000	$ 67,429,000		$ 71,250,000
Loan agreement with unaffiliated banks			150,000,000
Short-term borrowings			33,173,000	63,887,000		57,590,000
Securities sold under agreements to repurchase			33,173,000
Other			18,360,000	18,965,000		18,332,000
Secured borrowings			133,642,000	115,504,000		112,633,000
Subordinated notes			$ 138,943,000	138,861,000		138,834,000
Loans Payable
Debt Instrument [Line Items]
Debt instrument, Issuance date			Dec. 15, 2014
Term Facility
Debt Instrument [Line Items]
Notes payable			$ 56,200,000	67,400,000		71,300,000	$ 75,000,000
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
Maximum borrowing capacity			$ 75,000,000
Maturity date			Dec. 12, 2016	Dec. 14, 2015
Debt instrument, Frequency of periodic payment			quarterly
Line of credit facility, Unused capacity, Commitment fee percentage | Rate			0.20%
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under agreements to repurchase			$ 33,200,000	$ 58,900,000		57,600,000
Pledged financial instruments, Not separately reported, Securities for repurchase agreements			$ 44,100,000
Fixed Rate Promissory Note
Debt Instrument [Line Items]
Debt instrument, Issuance date			Aug. 31, 2012
Maturity date			Sep. 01, 2017
Debt instrument, Frequency of periodic payment			monthly
Other			$ 17,800,000	18,200,000		$ 18,300,000
Contractual rate			3.75%
Non Recourse Debt
Debt Instrument [Line Items]
Other			$ 519,000	$ 732,000
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%
Receivables Purchase Agreement [Member] | Secured Debt
Debt Instrument [Line Items]
Maturity date	Dec. 15, 2017	Dec. 15, 2015
Contractual rate			1.6121%
Secured borrowings		CAD 150	$ 121,900,000		CAD 160
Additional amount paid by third party | CAD	CAD 10

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Junior Subordinated Debentures (Summary of Junior Subordinated Debentures) (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2016	Jan. 22, 2016	Dec. 31, 2015	Sep. 30, 2015
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566,000		$ 268,566,000	$ 268,566,000
Wintrust Capital Trust III
Subordinated Borrowing [Line Items]
Common Securities	774,000
Trust Preferred Securities	25,000,000
Junior subordinated debentures	$ 25,774,000
Rate Structure	L+3.25
Contractual rate	3.93%
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	$ 619,000
Trust Preferred Securities	20,000,000
Junior subordinated debentures	$ 20,619,000
Rate Structure	L+2.80
Contractual rate	3.64%
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	$ 1,238,000
Trust Preferred Securities	40,000,000
Junior subordinated debentures	$ 41,238,000
Rate Structure	L+2.60
Contractual rate	3.44%
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	$ 1,550,000
Trust Preferred Securities	50,000,000
Junior subordinated debentures	$ 51,550,000
Rate Structure	L+1.95
Contractual rate	2.80%
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	$ 1,238,000
Trust Preferred Securities	25,000,000	$ 15,000,000.0	$ 40,000,000.0
Junior subordinated debentures	$ 26,238,000	$ 15,000,000
Rate Structure	L+1.45
Contractual rate	2.29%
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	$ 1,547,000
Trust Preferred Securities	50,000,000
Junior subordinated debentures	$ 51,547,000
Rate Structure	L+1.63
Contractual rate	2.48%
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	$ 186,000
Trust Preferred Securities	6,000,000
Junior subordinated debentures	$ 6,186,000
Rate Structure	L+3.00
Contractual rate	3.76%
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	$ 186,000
Trust Preferred Securities	6,000,000
Junior subordinated debentures	$ 6,186,000
Rate Structure	L+3.00
Contractual rate	3.76%
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	$ 155,000
Trust Preferred Securities	5,000,000
Junior subordinated debentures	$ 5,155,000
Rate Structure	L+3.00
Contractual rate	3.84%
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	$ 464,000
Trust Preferred Securities	15,000,000
Junior subordinated debentures	$ 15,464,000
Rate Structure	L+1.75
Contractual rate	2.60%
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	$ 109,000
Trust Preferred Securities	3,500,000
Junior subordinated debentures	$ 3,609,000
Rate Structure	L+1.62
Contractual rate	2.47%
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	3.02%
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%

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Junior Subordinated Debentures (Narrative) (Detail)		9 Months Ended
	Jan. 22, 2016 USD ($)	Sep. 30, 2016 USD ($) trust Rate	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Subordinated Borrowing [Line Items]
Percentage ownership interest in subsidiary trusts		100.00%
Number of unconsolidated subsidiary trusts | trust		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		$ 253,566,000	$ 268,566,000	$ 268,566,000
Gains on early extinguishment of debt		4,305,000	$ 0
Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Trust Preferred Securities	$ 15,000,000.0	25,000,000		40,000,000.0
Junior subordinated debentures	15,000,000	$ 26,238,000
Gains on early extinguishment of debt	$ 4,300,000
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate | Rate		3.02%
Debt, Hedge Adjusted Weighted Average Interest Rate | Rate		3.71%
Tier One Risk Based Capital		$ 0		65,100,000
Tier Two Risk Based Capital		$ 245,500,000		$ 195,400,000
Junior Subordinated Debt | Maximum
Subordinated Borrowing [Line Items]
Period of deferred payment, not to exceed		60 months

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Segment Information (Summary of Segment Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net interest income	$ 184,636	$ 165,540	$ 531,415	$ 474,323
Net interest income, Change in Contribution	$ 19,096		$ 57,092
Net interest income, Change in Contribution Percentage	12.00%		12.00%
Non-interest income	$ 86,604	64,953	$ 240,155	206,507
Non-interest income, Change in Contribution	$ 21,651		$ 33,648
Non-interest income, Change in Contribution Percentage	33.00%		16.00%
Net revenue	$ 271,240	230,493	$ 771,570	680,830
Net revenue, Change in Contribution	$ 40,747		$ 90,740
Net revenue, Change in Contribution Percentage	18.00%		13.00%
Segment profit	$ 53,115	38,355	$ 152,267	121,238
Segment profit, Change in Contribution	$ 14,760		$ 31,029
Segment profit, Change in Contribution Percentage	38.00%		26.00%
Segment assets	$ 25,321,759	22,035,216	$ 25,321,759	22,035,216	$ 22,909,348
Segment assets, Change in Contribution	$ 3,286,543
Segment assets, Change in Contribution Percentage	15.00%
Operating Segments
Segment Reporting Information [Line Items]
Net interest income	$ 180,537	161,567	518,884	462,065
Net interest income, Change in Contribution	$ 18,970		$ 56,819
Net interest income, Change in Contribution Percentage	12.00%		12.00%
Non-interest income	$ 95,001	72,200	$ 264,981	228,112
Non-interest income, Change in Contribution	$ 22,801		$ 36,869
Non-interest income, Change in Contribution Percentage	32.00%		16.00%
Net revenue	$ 275,538	233,767	$ 783,865	690,177
Net revenue, Change in Contribution	$ 41,771		$ 93,688
Net revenue, Change in Contribution Percentage	18.00%		14.00%
Operating Segments | Community banking
Segment Reporting Information [Line Items]
Net interest income	$ 150,159	132,542	$ 434,108	382,187
Net interest income, Change in Contribution	$ 17,617		$ 51,921
Net interest income, Change in Contribution Percentage	13.00%		14.00%
Non-interest income	$ 62,730	45,574	$ 169,210	146,739
Non-interest income, Change in Contribution	$ 17,156		$ 22,471
Non-interest income, Change in Contribution Percentage	38.00%		15.00%
Net revenue	$ 212,889	178,116	$ 603,318	528,926
Net revenue, Change in Contribution	$ 34,773		$ 74,392
Net revenue, Change in Contribution Percentage	20.00%		14.00%
Segment profit	$ 37,527	22,723	$ 106,860	76,821
Segment profit, Change in Contribution	$ 14,804		$ 30,039
Segment profit, Change in Contribution Percentage	65.00%		39.00%
Segment assets	$ 21,019,002	18,497,364	$ 21,019,002	18,497,364
Segment assets, Change in Contribution	$ 2,521,638
Segment assets, Change in Contribution Percentage	14.00%
Operating Segments | Specialty finance
Segment Reporting Information [Line Items]
Net interest income	$ 25,543	24,657	71,075	67,041
Net interest income, Change in Contribution	$ 886		$ 4,034
Net interest income, Change in Contribution Percentage	4.00%		6.00%
Non-interest income	$ 12,226	8,264	$ 37,111	25,270
Non-interest income, Change in Contribution	$ 3,962		$ 11,841
Non-interest income, Change in Contribution Percentage	48.00%		47.00%
Net revenue	$ 37,769	32,921	$ 108,186	92,311
Net revenue, Change in Contribution	$ 4,848		$ 15,875
Net revenue, Change in Contribution Percentage	15.00%		17.00%
Segment profit	$ 12,767	12,545	$ 36,283	34,875
Segment profit, Change in Contribution	$ 222		$ 1,408
Segment profit, Change in Contribution Percentage	2.00%		4.00%
Segment assets	$ 3,702,241	2,987,021	$ 3,702,241	2,987,021
Segment assets, Change in Contribution	$ 715,220
Segment assets, Change in Contribution Percentage	24.00%
Operating Segments | Wealth management
Segment Reporting Information [Line Items]
Net interest income	$ 4,835	4,368	13,701	12,837
Net interest income, Change in Contribution	$ 467		$ 864
Net interest income, Change in Contribution Percentage	11.00%		7.00%
Non-interest income	$ 20,045	18,362	$ 58,660	56,103
Non-interest income, Change in Contribution	$ 1,683		$ 2,557
Non-interest income, Change in Contribution Percentage	9.00%		5.00%
Net revenue	$ 24,880	22,730	$ 72,361	68,940
Net revenue, Change in Contribution	$ 2,150		$ 3,421
Net revenue, Change in Contribution Percentage	9.00%		5.00%
Segment profit	$ 2,821	3,087	$ 9,124	9,542
Segment profit, Change in Contribution	$ (266)		$ (418)
Segment profit, Change in Contribution Percentage	(9.00%)		(4.00%)
Segment assets	$ 600,516	550,831	$ 600,516	550,831
Segment assets, Change in Contribution	$ 49,685
Segment assets, Change in Contribution Percentage	9.00%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net interest income	$ 4,099	3,973	12,531	12,258
Net interest income, Change in Contribution	$ 126		$ 273
Net interest income, Change in Contribution Percentage	3.00%		2.00%
Non-interest income	$ (8,397)	(7,247)	$ (24,826)	(21,605)
Non-interest income, Change in Contribution	$ (1,150)		$ (3,221)
Non-interest income, Change in Contribution Percentage	(16.00%)		(15.00%)
Net revenue	$ (4,298)	$ (3,274)	$ (12,295)	$ (9,347)
Net revenue, Change in Contribution	$ (1,024)		$ (2,948)
Net revenue, Change in Contribution Percentage	(31.00%)		(32.00%)

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Segment Information (Narrative) (Detail)	9 Months Ended
	Sep. 30, 2016 segment subsidiary
Segment Reporting Information [Line Items]
Number of reportable segments	3
Number Of Subsidiaries | subsidiary	15
Community banking
Segment Reporting Information [Line Items]
Number of reportable segments	1

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Derivative Financial Instruments (Interest Rate Cap Derivative Summary) (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Interest Rate Cap, $100 million, March 2017 | 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	$ 1
Interest Rate Cap, $75 million, November 2016 | 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	0
Total Interest Rate Cap
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	265,000
Fair Value as of End of Period	$ 18
Cash Flow Hedging | Interest Rate Cap, $50 million, September 2017 | 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	$ 9
Cash Flow Hedging | Interest Rate Cap, $40 million, September 2017 | 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	8
Cash Flow Hedging | Total Interest Rate Cap | Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	90,000
Fair Value as of End of Period	$ 17

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Derivative Financial Instruments (Schedule Of Fair Value Of Derivative Financial Instruments) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Derivative [Line Items]
Derivative assets	$ 88,828	$ 51,298	$ 69,034
Derivative liabilities	87,948	45,019	65,198
Interest Rate Contract
Derivative [Line Items]
Derivative assets	80,203	42,779	56,938
Derivative liabilities	80,113	42,458	57,429
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	726	269	221
Derivative liabilities	914	989	1,620
Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative assets	549	242	216
Derivative liabilities	7	846	1,329
Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative assets	177	27	5
Derivative liabilities	907	143	291
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	88,102	51,029	68,813
Derivative liabilities	87,034	44,030	63,578
Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative assets	79,477	42,510	56,717
Derivative liabilities	79,199	41,469	55,809
Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative assets	8,352	7,401	11,836
Derivative liabilities	4,060	171	0
Not Designated as Hedging Instrument | Forward Commitments to Sell Mortgage Loans
Derivative [Line Items]
Derivative assets	0	745	0
Derivative liabilities	3,505	2,275	7,713
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative assets	273	373	260
Derivative liabilities	$ 270	$ 115	$ 56

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Derivative Financial Instruments (Schedule Of Cash Flow Hedging Instruments) (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Total Interest Rate Cap
Derivative [Line Items]
Notional amount	$ 265,000
Fair Value Asset (Liability)	18
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap, $25 million, October 2016
Derivative [Line Items]
Notional amount	25,000
Fair Value Asset (Liability)	(7)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap, $250 million, July 2019
Derivative [Line Items]
Notional amount	250,000
Fair Value Asset (Liability)	106
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap, $275 million, August 2019
Derivative [Line Items]
Notional amount	275,000
Fair Value Asset (Liability)	426
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Swap
Derivative [Line Items]
Notional amount	550,000
Fair Value Asset (Liability)	525
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap, $50 million, September 2017
Derivative [Line Items]
Notional amount	50,000
Fair Value Asset (Liability)	9
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Cap, $40 million, September 2017
Derivative [Line Items]
Notional amount	40,000
Fair Value Asset (Liability)	8
Cash Flow Hedging | Designated as Hedging Instrument | Total Interest Rate Cap
Derivative [Line Items]
Notional amount	90,000
Fair Value Asset (Liability)	17
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swaps and Caps
Derivative [Line Items]
Notional amount	640,000
Fair Value Asset (Liability)	$ 542

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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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Rollforward of AOCI from Cash Flow Hedging Derivatives [Roll Forward]
Unrealized loss at beginning of period	$ (3,574)	$ (4,408)	$ (3,529)	$ (4,062)
Amount reclassified from accumulated other comprehensive income to interest expense on deposits and junior subordinated debentures	1,065	571	2,620	1,460
Amount of gain (loss) recognized in other comprehensive income	1,708	(503)	108	(1,738)
Unrealized loss at end of period	$ (801)	$ (4,340)	$ (801)	$ (4,340)

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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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ 269	$ (323)	$ (614)	$ (338)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	(234)	302	627	315
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 35	$ (21)	$ 13	$ (23)

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Derivative Financial Instruments (Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest Rate Swaps and Caps | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (395)	$ (275)	$ (751)	$ (592)
Mortgage Banking Derivatives | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	(2,215)	(4,062)	(3,058)	(1,669)
Covered Call Options | Fees from covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	3,633	2,810	9,994	11,735
Foreign Exchange Contract | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (26)	$ 113	$ (262)	$ 133

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Derivative Financial Instruments (Derivative Asset and Liability Balance Sheet Offsetting) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Offsetting Assets [Line Items]
Net amount presented in the Statements of Financial Condition	$ 88,828	$ 51,298	$ 69,034
Derivative Liabilities
Net amount presented in the Statements of Financial Condition	87,948	45,019	65,198
Interest Rate Contract
Offsetting Assets [Line Items]
Gross Amounts Recognized	80,203	42,779	56,938
Less: Amounts offset in the Statements of Financial Condition	0	0	0
Net amount presented in the Statements of Financial Condition	80,203	42,779	56,938
Offsetting Derivative Positions	958	753	614
Collateral Posted	0	0	0
Net Credit Exposure	79,245	42,026	56,324
Derivative Liabilities
Gross Amounts Recognized	80,113	42,458	57,429
Less: Amounts offset in the Statements of Financial Condition	0	0	0
Net amount presented in the Statements of Financial Condition	80,113	42,458	57,429
Offsetting Derivative Positions	(958)	(753)	(614)
Collateral Posted	(79,155)	(41,705)	(54,410)
Net Credit Exposure	0	0	$ 2,405
Collateral posted which resulted in excess collateral with counterparties	$ 86,000	$ 45,500

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Derivative Financial Instruments (Narrative) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) contracts derivative_instruments	Sep. 30, 2015 USD ($) derivative_instruments	Sep. 30, 2016 USD ($) contracts derivative_instruments	Sep. 30, 2015 USD ($) 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			$ 1,700,000
Derivative, Net Liability Position, Aggregate Fair Value	$ 80,600,000		$ 80,600,000
Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | contracts	2		2
Notional amount	$ 175,000,000		$ 175,000,000
Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	4,100,000,000		4,100,000,000
Forward Commitments to Sell Mortgage Loans | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	1,300,000,000		1,300,000,000
Interest Rate Lock Commitments | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	683,600,000		683,600,000
Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 63,600,000		$ 63,600,000
Covered Call Options | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Number of Instruments Held | derivative_instruments	0	0	0	0	0
Minimum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date			Oct. 31, 2016
Maximum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date			Feb. 28, 2045
De-designated Hedge | Interest Rate Cap | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 96,500,000		$ 96,500,000
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
Cash Flow Hedging | Cash flow hedge of variable rate deposits | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	2		2
Cash Flow Hedging | Interest Rate Swap, $250 million, July 2019 | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 250,000,000		$ 250,000,000
Cash Flow Hedging | Interest Rate Swap, $250 million, July 2019 | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	250,000,000		250,000,000
Cash Flow Hedging | Interest Rate Swap, $275 million, August 2019 | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	275,000,000		275,000,000
Cash Flow Hedging | Interest Rate Swap, $275 million, August 2019 | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 275,000,000		$ 275,000,000
Cash Flow Hedging | Cash Flow Hedge of Junior Subordinated Debentures | Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	2		2
Cash Flow Hedging | Cash Flow Hedge of Junior Subordinated Debentures | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	1		1
Fair Value Hedging | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	7		7
Notional amount	$ 71,300,000		$ 71,300,000
Fair Value Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 35,000	$ (21,000)	$ 13,000	$ (23,000)

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	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 1,650,096	$ 1,716,388	$ 2,214,281
Trading account securities	1,092	448	3,312
Mortgage loans held-for-sale	559,634	388,038	347,005
Derivative assets	88,828	51,298	69,034
Derivative liabilities	87,948	45,019	65,198
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,036	306,729	285,922
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	93,683	70,236	645,023
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	109,281	108,595	297,342
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,301,111	1,092,597	815,045
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	50,782	56,686	54,004
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,092	448	3,312
Mortgage loans held-for-sale	559,634	388,038	347,005
MSRs	13,901	9,092	7,875
Nonqualified deferred compensation assets	9,218	8,517	8,342
Derivative assets	88,828	51,298	69,034
Total	2,322,769	2,173,781	2,649,849
Derivative liabilities	87,948	45,019	65,198
Fair Value, Measurements, Recurring | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,036	306,729	285,922
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	93,683	70,236	645,023
Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	109,281	108,595	297,342
Fair Value, Measurements, Recurring | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	65,203	81,545	116,945
Fair Value, Measurements, Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,301,111	1,092,597	815,045
Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	50,782	56,686	54,004
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,092	448	3,312
Mortgage loans held-for-sale	559,634	388,038	347,005
MSRs	0	0	0
Nonqualified deferred compensation assets	9,218	8,517	8,342
Derivative assets	88,828	51,298	69,034
Total	2,241,660	2,070,877	2,549,057
Derivative liabilities	87,948	45,019	65,198
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	30,036	306,729	285,922
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	93,683	70,236	645,023
Fair Value, Measurements, Recurring | Level 2 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	42,073	39,982	228,941
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	65,203	81,545	116,945
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	1,301,111	1,092,597	815,045
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	50,782	31,487	29,488
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
MSRs	13,901	9,092	7,875
Nonqualified deferred compensation assets	0	0	0
Derivative assets	0	0	0
Total	81,109	102,904	100,792
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	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	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	67,208	68,613	68,401
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	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	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	$ 0	$ 25,199	$ 24,516

XML

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 13,382	$ 8,034	$ 9,092	$ 8,435
Total net gains (losses) included in Net income	519	(159)	4,809	(560)
Total net gains (losses) included in Other comprehensive income		0		0
Purchases		0		0
Issuances	0	0	0	0
Settlements		0		0
Net transfers into/(out of) Level 3	0	0	0	0
Ending Balance	13,901	7,875	13,901	7,875
Municipal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	69,812	58,572	68,613	58,953
Total net gains (losses) included in Net income		0		0
Total net gains (losses) included in Other comprehensive income	(241)	223	(141)	(287)
Purchases	2,184	10,405	6,458	21,254
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	(4,547)	(799)	(7,722)	(11,519)
Net transfers into/(out of) Level 3		0		0
Ending Balance	67,208	68,401	67,208	68,401
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	25,187	24,996	25,199	23,711
Total net gains (losses) included in Net income		0		0
Total net gains (losses) included in Other comprehensive income	0	(480)	(12)	805
Purchases		0		0
Issuances	0	0	0	0
Sales	(25,187)		(25,187)
Settlements		0		0
Net transfers into/(out of) Level 3	0	0	0	0
Ending Balance	$ 0	$ 24,516	$ 0	$ 24,516

XML

Fair Values Of Assets And Liabilities (Summary Of Assets Measured At Fair Value On A Nonrecurring Basis) (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	$ 90,540	$ 90,540	$ 101,255	$ 113,027
Fair Value Losses Recognized, Impaired loans—collateral based	4,635	10,865
Fair Value Losses Recognized, Other real estate owned	1,237	4,617
Fair Value Losses Recognized, Total	5,872	15,482
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	64,614	64,614
Other real estate owned	45,449	45,449
Total	110,063	110,063
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	0	0
Other real estate owned	0	0
Total	0	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	0
Other real estate owned	0	0
Total	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	64,614	64,614
Other real estate owned	45,449	45,449
Total	$ 110,063	$ 110,063

XML

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	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 1,650,096	$ 1,716,388	$ 2,214,281
Impaired loans—collateral based	$ 90,540	101,255	113,027
Other Real Estate Owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount for lack of market	10.00%
Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 109,281	108,595	297,342
Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
MSRs	13,901	9,092	7,875
Fair Value, Measurements, Recurring | Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	109,281	108,595	297,342
Fair Value, Measurements, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based	64,614
Other real estate owned	45,449
Level 3 | Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
MSRs	$ 13,901	9,092	7,875
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	5.52%
Fair Value Inputs, Prepayment Rate	14.73%
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	3.00%
Fair Value Inputs, Prepayment Rate	2.00%
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	85.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate Input
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Discounted cash flows
Significant Unobservable Input	Discount rate
Range of Inputs	3%-7%
Impact to valuation from an increased or higher input value	Decrease
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate Input | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	5.52%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate Input | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	3.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate Input | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	7.00%
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	2%-85%
Impact to valuation from an increased or higher input value	Decrease
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate Input | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Prepayment Rate	14.73%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate Input | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Prepayment Rate	2.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate Input | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Inputs, Prepayment Rate	85.00%
Level 3 | Fair Value, Measurements, Recurring | Municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 67,208	$ 68,613	$ 68,401
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, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based	$ 64,614
Other real estate owned	$ 45,449
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
Discount for lack of market	10.00%
Impact to valuation from an increased or higher input value	Decrease
Level 3 | Fair Value, Measurements, Nonrecurring | Impaired Loans | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount for lack of market	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
Discount for lack of market	10.00%
Impact to valuation from an increased or higher input value	Decrease
Level 3 | Fair Value, Measurements, Nonrecurring | Other Real Estate Owned | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount for lack of market	10.00%

XML

Fair Values Of Assets And Liabilities (Summary Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 246,947	$ 275,795	$ 250,655	$ 230,707
Interest bearing deposits with banks	816,104	607,782	701,106
Available-for-sale securities	1,650,096	1,716,388	2,214,281
Held-to-maturity securities	942,666	878,111	0
Trading account securities	1,092	448	3,312
FHLB and FRB stock, at cost	129,630	101,581	90,308
Brokerage customer receivables	25,511	27,631	28,293
Mortgage loans held-for-sale, at fair value	559,634	388,038	347,005
Accrued interest receivable and other	660,923	597,099	629,211
FHLB advances	419,632	853,431	443,955
Other borrowings	241,366	265,785	259,805
Subordinated notes	138,943	138,861	138,834
Junior subordinated debentures	253,566	268,566	268,566
Derivative liabilities	87,948	45,019	65,198
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	246,947	275,795	250,655
Interest bearing deposits with banks	816,104	607,782	701,106
Available-for-sale securities	1,650,096	1,716,388	2,214,281
Held-to-maturity securities	932,767	884,826	0
Trading account securities	1,092	448	3,312
FHLB and FRB stock, at cost	129,630	101,581	90,308
Brokerage customer receivables	25,511	27,631	28,293
Mortgage loans held-for-sale, at fair value	559,634	388,038	347,005
Total loans	19,197,201	17,266,790	16,484,820
MSRs	13,901	9,092	7,875
Nonqualified deferred compensation assets	9,218	8,517	8,342
Derivative assets	88,828	51,298	69,034
Accrued interest receivable and other	205,725	193,092	192,572
Total financial assets	23,876,654	21,531,278	20,397,603
Non-maturity deposits	16,946,178	14,634,957	14,092,697
Deposits with stated maturities	4,201,477	4,004,677	4,135,772
FHLB advances	419,632	853,431	451,330
Other borrowings	241,366	265,785	259,978
Subordinated notes	138,943	138,861	138,834
Junior subordinated debentures	253,566	268,566	268,566
Derivative liabilities	87,948	45,019	65,198
FDIC indemnification liability	17,945	6,100	3,033
Accrued interest payable	8,007	7,394	11,364
Total financial liabilities	22,315,062	20,224,790	19,426,772
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	246,947	275,795	250,655
Interest bearing deposits with banks	816,104	607,782	701,106
Available-for-sale securities	1,650,096	1,716,388	2,214,281
Held-to-maturity securities	942,666	878,111	0
Trading account securities	1,092	448	3,312
FHLB and FRB stock, at cost	129,630	101,581	90,308
Brokerage customer receivables	25,511	27,631	28,293
Mortgage loans held-for-sale, at fair value	559,634	388,038	347,005
Total loans	20,251,518	18,106,829	17,284,375
MSRs	13,901	9,092	7,875
Nonqualified deferred compensation assets	9,218	8,517	8,342
Derivative assets	88,828	51,298	69,034
Accrued interest receivable and other	205,725	193,092	192,572
Total financial assets	24,940,870	22,364,602	21,197,158
Non-maturity deposits	16,946,178	14,634,957	14,092,697
Deposits with stated maturities	4,200,278	3,998,180	4,137,856
FHLB advances	427,103	863,437	459,154
Other borrowings	241,366	265,785	259,978
Subordinated notes	138,715	140,302	142,953
Junior subordinated debentures	254,108	268,046	268,058
Derivative liabilities	87,948	45,019	65,198
FDIC indemnification liability	17,945	6,100	3,033
Accrued interest payable	8,007	7,394	11,364
Total financial liabilities	$ 22,321,648	$ 20,229,220	$ 19,440,291

XML

Fair Values Of Assets And Liabilities (Narrative) (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 1,650,096,000	$ 1,650,096,000	$ 1,716,388,000	$ 2,214,281,000
Mortgage loans held-for-sale	559,634,000	559,634,000	388,038,000	347,005,000
Impaired loans—collateral based	90,540,000	$ 90,540,000	101,255,000	113,027,000
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for lack of market		10.00%
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,650,096,000	$ 1,650,096,000	1,716,388,000	2,214,281,000
MSRs	13,901,000	13,901,000	9,092,000	7,875,000
Remaining contractual principal balance outstanding, mortgage loans held-for-sale	537,000,000	537,000,000	372,000,000	328,100,000
Mortgage loans held-for-sale	559,634,000	559,634,000	388,038,000	347,005,000
Impaired loans—collateral based	64,600,000	64,600,000
Portion at Other than Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	25,900,000	25,900,000
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	109,281,000	109,281,000	108,595,000	297,342,000
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	50,782,000	50,782,000	56,686,000	54,004,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	13,901,000	13,901,000	9,092,000	7,875,000
Mortgage loans held-for-sale	559,634,000	559,634,000	388,038,000	347,005,000
Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	109,281,000	109,281,000	108,595,000	297,342,000
Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	50,782,000	50,782,000	56,686,000	54,004,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	64,614,000	64,614,000
Other real estate owned	45,449,000	45,449,000
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	13,901,000	13,901,000	9,092,000	7,875,000
Mortgage loans held-for-sale	0	$ 0	0	0
Level 3 | Fair Value, Measurements, Recurring | Minimum | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		3.00%
Fair Value Inputs, Prepayment Rate		2.00%
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		85.00%
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		5.52%
Fair Value Inputs, Prepayment Rate		14.73%
Level 3 | Fair Value, Measurements, Recurring | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	67,208,000	$ 67,208,000	68,613,000	68,401,000
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	0	0	25,199,000	24,516,000
Gain on transfer	2,400,000
Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	64,614,000	64,614,000
Other real estate owned	45,449,000	$ 45,449,000
Level 3 | Fair Value, Measurements, Nonrecurring | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for lack of market		10.00%
Level 3 | Fair Value, Measurements, Nonrecurring | Weighted Average | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for lack of market		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	$ 0

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Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Detail)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 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	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common Shares, Outstanding at beginning of the period (in shares)	1,551,734	1,618,426
Common Shares, Conversion of options of acquired company (in shares)		16,364
Common Shares, Granted (in shares)	562,166	502,517
Common Shares, Exercised (in shares)	(184,366)	(258,836)
Common Shares, Forfeited or canceled (in shares)	(86,039)	(277,150)
Common Shares, Outstanding at end of the period (in shares)	1,843,495	1,601,321
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 (usd per share)	$ 41.32	$ 43.00
Weighted Average Strike Price, Conversion of options of acquired company (usd per share)		21.18
Weighted Average Strike Price, Granted (usd per share)	41.04	44.36
Weighted Average Strike Price, Exercised (usd per share)	37.43	43.14
Weighted Average Strike Price, Forfeited or canceled (usd per share)	48.93	53.64
Weighted Average Strike Price, Outstanding at end of period (usd per share)	$ 41.27	$ 41.34
Stock Options, Exercisable (in shares)	813,666	715,101
Stock Options, Weighted Average Strike Price, Exercisable (usd per share)	$ 39.27	$ 37.52
Stock Options, Remaining Contractual Term, Outstanding, Years	4 years 9 months 18 days	4 years 8 months 12 days
Stock Options, Remaining Contractual Term, Exercisable, Years	3 years 6 months	3 years 2 months 12 days
Stock Options, Intrinsic Value, Outstanding	$ 26,363	$ 19,738
Stock Options, Intrinsic Value, Exercisable	$ 13,265	$ 11,376

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Stock-Based Compensation Plans (Summary Of Plans' Restricted Share And Performance-Vested Stock Award Activity) (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Shares, Beginning of the Period (in shares)	137,593	146,112
Shares, Granted (in shares)	15,764	15,657
Shares, Vested and issued (in shares)	(10,041)	(20,409)
Shares, Forfeited (in shares)	(598)	(2,400)
Shares, Outstanding, End of the Period (in shares)	142,718	138,960
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant-Date Fair Value (usd per share)	$ 49.63	$ 47.45
Weighted Average Grant-Date Fair Value, Granted (usd per share)	44.72	45.81
Weighted Average Grant-Date Fair Value, Vested and issued (usd per share)	43.78	39.07
Weighted Average Grant-Date Fair Value, Forfeited (usd per share)	44.26	36.81
Weighted Average Grant-Date Fair Value (usd per share)	$ 49.52	$ 48.68
Shares, Vested, but not issuable (in shares)	88,889	85,000
Weighted Average Grant-Date Fair Value, Vested, but not issuable (usd per share)	$ 51.44	$ 51.88
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Shares, Beginning of the Period (in shares)	276,533	295,679
Shares, Granted (in shares)	118,072	106,017
Shares, Vested and issued (in shares)	(78,410)	(78,590)
Shares, Forfeited (in shares)	(13,229)	(33,854)
Shares, Outstanding, End of the Period (in shares)	302,966	289,252
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant-Date Fair Value (usd per share)	$ 43.01	$ 38.18
Weighted Average Grant-Date Fair Value, Granted (usd per share)	41.02	44.35
Weighted Average Grant-Date Fair Value, Vested and issued (usd per share)	37.90	31.10
Weighted Average Grant-Date Fair Value, Forfeited (usd per share)	41.12	32.74
Weighted Average Grant-Date Fair Value (usd per share)	$ 43.64	$ 43.00
Shares, Vested, but not issuable (in shares)	6,660	0
Weighted Average Grant-Date Fair Value, Vested, but not issuable (usd per share)	$ 37.93	$ 0.00

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Stock-Based Compensation Plans (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 2.0	$ 2.5	$ 6.8	$ 7.8
Weighted average grant date fair value per share of options granted (usd per share)			$ 8.61	$ 9.72
Aggregate intrinsic value of options exercised			$ 2.7	$ 2.3
Two Thousand And Fifteen Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved for issuance (in shares)					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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	$ (34,440)	$ (61,871)	$ (62,708)	$ (37,332)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	925	12,371	25,516	(12,394)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(1,359)	407	(2,094)	633
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	2,295	0	6,707	0
Total other comprehensive income (loss)	1,861	12,778	30,129	(11,761)
Balance at end of period	(32,579)	(49,093)	(32,579)	(49,093)
Accumulated Unrealized Gains (Losses) on Securities
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	3,971	(26,333)	(17,674)	(9,533)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,532	18,995	20,444	2,499
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(2,005)	60	(3,684)	(244)
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	2,295	0	6,707	0
Total other comprehensive income (loss)	1,822	19,055	23,467	2,255
Balance at end of period	5,793	(7,278)	5,793	(7,278)
Accumulated Unrealized Losses on Derivative Instruments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(2,220)	(2,727)	(2,193)	(2,517)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	1,037	(287)	66	(1,027)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	646	347	1,590	877
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	0	0	0
Total other comprehensive income (loss)	1,683	60	1,656	(150)
Balance at end of period	(537)	(2,667)	(537)	(2,667)
Accumulated Foreign Currency Translation Adjustments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(36,191)	(32,811)	(42,841)	(25,282)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(1,644)	(6,337)	5,006	(13,866)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	0	0	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	0	0	0
Total other comprehensive income (loss)	(1,644)	(6,337)	5,006	(13,866)
Balance at end of period	$ (37,835)	$ (39,148)	$ (37,835)	$ (39,148)

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Shareholders' Equity And Earnings Per Share (Other Comprehensive Income Reclassified from AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains (losses) on investment securities, net	$ 3,305	$ (98)	$ 6,070	$ 402
Interest on deposits	15,621	12,436	41,996	36,246
Interest on junior subordinated debentures	2,400	2,124	6,973	6,034
Income before taxes	85,054	62,197	243,522	195,358
Income tax expense	(31,939)	(23,842)	(91,255)	(74,120)
Net income	53,115	38,355	152,267	121,238
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Accumulated Unrealized Gains (Losses) on Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains (losses) on investment securities, net	3,305	(98)	6,070	402
Income before taxes	3,305	(98)	6,070	402
Income tax expense	(1,300)	38	(2,386)	(158)
Net income	2,005	(60)	3,684	244
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	528	92	1,121	92
Interest on junior subordinated debentures	537	479	1,499	1,350
Income before taxes	(1,065)	(571)	(2,620)	(1,442)
Income tax expense	419	224	1,030	565
Net income	$ (646)	$ (347)	$ (1,590)	$ (877)

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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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income	$ 53,115	$ 38,355	$ 152,267	$ 121,238
Less: Preferred stock dividends and discount accretion	3,628	4,079	10,884	7,240
Net income applicable to common shares	49,487	34,276	141,383	113,998
Add: Dividends on convertible preferred stock, if dilutive	1,578	1,579	4,735	4,740
Net income applicable to common shares—Diluted	$ 51,065	$ 35,855	$ 146,118	$ 118,738
Weighted average common shares outstanding	51,679	48,158	49,763	47,658
Effect of dilutive potential common shares
Common stock equivalents	938	978	822	1,070
Convertible preferred stock, if dilutive	3,109	3,071	3,109	3,071
Total dilutive potential common shares	4,047	4,049	3,931	4,141
Weighted average common shares and effect of dilutive potential common shares	55,726	52,207	53,694	51,799
Net income per common share-Basic (usd per share)	$ 0.96	$ 0.71	$ 2.84	$ 2.39
Net income per common share-Diluted (usd per share)	$ 0.92	$ 0.69	$ 2.72	$ 2.29

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Shareholders' Equity And Earnings Per Share (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands								1 Months Ended								3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 25, 2016	Aug. 11, 2016	May 26, 2016	May 12, 2016	Feb. 25, 2016	Feb. 11, 2016	Dec. 19, 2008	Jul. 31, 2016	Jun. 30, 2016	Apr. 30, 2016	Jan. 31, 2016	Jul. 31, 2015	Jun. 30, 2015	Jan. 31, 2015	Mar. 31, 2012	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Temporary Equity [Line Items]
Stock issued in public offering, shares									3,000,000
Proceeds from the issuance of common stock, net									$ 152,800									$ 152,823	$ 0
Cash dividends declared per common share (usd per share)								$ 0.12		$ 0.12	$ 0.12					$ 0.12	$ 0.11	$ 0.36	$ 0.33
Common stock dividends per share declared annualized (usd per share)								$ 0.48		$ 0.48	$ 0.48
Dividends payable, date to be paid	Aug. 25, 2016		May 26, 2016		Feb. 25, 2016
Dividends payable, date of record		Aug. 11, 2016		May 12, 2016		Feb. 11, 2016
Community Financial Shares, Inc.
Temporary Equity [Line Items]
Common stock, acquisition, shares issued												388,573
Delavan Bancshares
Temporary Equity [Line Items]
Common stock, acquisition, shares issued														422,122
US Treasury
Temporary Equity [Line Items]
Warrants outstanding, shares							1,643,295									365,829		365,829
Investment warrants, exercise price (usd per share)							$ 22.82
Warrant termination period							10 years
Warrants exercised, shares																		1,603
Common Stock Shares Issued From Exercise Of Warrant Shares																		944
Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, shares issued													5,000,000
Preferred stock, liquidation value per share (usd per share)													$ 25			$ 25	$ 25	$ 25	$ 25	$ 25
Preferred stock, value													$ 125,000			$ 125,000	$ 125,000	$ 125,000	$ 125,000	$ 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 (usd per share)															$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000
Preferred stock, value															$ 126,500	$ 126,257	$ 126,312	$ 126,257	$ 126,312	$ 126,287
Preferred stock, Dividend payment terms															quarterly
Preferred stock, dividend rate, percentage															5.00%
Convertible preferred stock, rate of conversion, shares															24.5569
Preferred stock, shares converted																		30		180
Common stock, conversion of preferred stock, shares																		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%