10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________________

FORM 10-Q

_________________________________________

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

For the quarterly period ended June 30, 2017

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, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

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

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  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, 55,810,134 shares, as of July 31, 2017

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	93
ITEM 4.	Controls and Procedures	95
	PART II. — OTHER INFORMATION
ITEM 1.	Legal Proceedings	96
ITEM 1A.	Risk Factors	96
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	97
ITEM 3.	Defaults Upon Senior Securities	NA
ITEM 4.	Mine Safety Disclosures	NA
ITEM 5.	Other Information	NA
ITEM 6.	Exhibits	97
	Signatures	98
	Index of Exhibits	99

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
	(Unaudited)						(Unaudited)
(In thousands, except share data)	June 30, 2017			December 31, 2016			June 30, 2016
Assets
Cash and due from banks	$	296,105		$	267,194		$	267,551
Federal funds sold and securities purchased under resale agreements	56			2,851			4,024
Interest bearing deposits with banks	1,011,635			980,457			693,269
Available-for-sale securities, at fair value	1,649,636			1,724,667			637,663
Held-to-maturity securities, at amortized cost ($787.5 million, $607.6 million and $1.0 billion fair value at June 30, 2017, December 31, 2016 and June 30, 2016 respectively)	793,376			635,705			992,211
Trading account securities	1,987			1,989			3,613
Federal Home Loan Bank and Federal Reserve Bank stock	80,812			133,494			121,319
Brokerage customer receivables	23,281			25,181			26,866
Mortgage loans held-for-sale	382,837			418,374			554,256
Loans, net of unearned income, excluding covered loans	20,743,332			19,703,172			18,174,655
Covered loans	50,119			58,145			105,248
Total loans	20,793,451			19,761,317			18,279,903
Allowance for loan losses	(129,591		)	(122,291		)	(114,356		)
Allowance for covered loan losses	(1,074		)	(1,322		)	(2,412		)
Net loans	20,662,786			19,637,704			18,163,135
Premises and equipment, net	605,211			597,301			595,792
Lease investments, net	191,248			129,402			103,749
Accrued interest receivable and other assets	577,359			593,796			670,014
Trade date securities receivable	133,130			—			1,079,238
Goodwill	500,260			498,587			486,095
Other intangible assets	19,546			21,851			21,821
Total assets	$	26,929,265		$	25,668,553		$	24,420,616
Liabilities and Shareholders’ Equity
Deposits:
Non-interest bearing	$	6,294,052		$	5,927,377		$	5,367,672
Interest bearing	16,311,640			15,731,255			14,674,078
Total deposits	22,605,692			21,658,632			20,041,750
Federal Home Loan Bank advances	318,270			153,831			588,055
Other borrowings	277,710			262,486			252,611
Subordinated notes	139,029			138,971			138,915
Junior subordinated debentures	253,566			253,566			253,566
Trade date securities payable	5,151			—			40,000
Accrued interest payable and other liabilities	490,389			505,450			482,124
Total liabilities	24,089,807			22,972,936			21,797,021
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:
Series C - $1,000 liquidation value; no shares issued and outstanding at June 30, 2017, and 126,257 shares issued and outstanding at December 31, 2016 and June 30, 2016, respectively	—			126,257			126,257
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2017, December 31, 2016 and June 30, 2016, respectively	125,000			125,000			125,000
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2017, December 31, 2016 and June 30, 2016; 55,801,665 shares issued at June 30, 2017, 51,978,289 shares issued at December 31, 2016 and 51,708,585 shares issued at June 30, 2016	55,802			51,978			51,708
Surplus	1,511,080			1,365,781			1,350,751
Treasury stock, at cost, 101,738 shares at June 30, 2017, 97,749 shares at December 31, 2016, and 89,430 shares at June 30, 2016	(4,884		)	(4,589		)	(4,145		)
Retained earnings	1,198,997			1,096,518			1,008,464
Accumulated other comprehensive loss	(46,537		)	(65,328		)	(34,440		)
Total shareholders’ equity	2,839,458			2,695,617			2,623,595
Total liabilities and shareholders’ equity	$	26,929,265		$	25,668,553		$	24,420,616

See accompanying notes to unaudited consolidated financial statements.

1

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
	Three Months Ended						Six Months Ended
(In thousands, except per share data)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Interest income
Interest and fees on loans	$	212,709		$	178,530		$	412,023		$	351,657
Interest bearing deposits with banks	1,634			793			3,257			1,539
Federal funds sold and securities purchased under resale agreements	1			1			2			2
Investment securities	15,524			16,398			29,097			33,588
Trading account securities	4			14			15			25
Federal Home Loan Bank and Federal Reserve Bank stock	1,153			1,112			2,223			2,049
Brokerage customer receivables	156			216			323			435
Total interest income	231,181			197,064			446,940			389,295
Interest expense
Interest on deposits	18,471			13,594			34,741			26,375
Interest on Federal Home Loan Bank advances	2,933			2,984			4,523			5,870
Interest on other borrowings	1,149			1,086			2,288			2,144
Interest on subordinated notes	1,786			1,777			3,558			3,554
Interest on junior subordinated debentures	2,433			2,353			4,841			4,573
Total interest expense	26,772			21,794			49,951			42,516
Net interest income	204,409			175,270			396,989			346,779
Provision for credit losses	8,891			9,129			14,100			17,163
Net interest income after provision for credit losses	195,518			166,141			382,889			329,616
Non-interest income
Wealth management	19,905			18,852			40,053			37,172
Mortgage banking	35,939			36,807			57,877			58,542
Service charges on deposit accounts	8,696			7,726			16,961			15,132
Gains (losses) on investment securities, net	47			1,440			(8		)	2,765
Fees from covered call options	890			4,649			1,649			6,361
Trading losses, net	(420		)	(316		)	(740		)	(484		)
Operating lease income, net	6,805			4,005			12,587			6,811
Other	18,110			11,636			30,358			27,252
Total non-interest income	89,972			84,799			158,737			153,551
Non-interest expense
Salaries and employee benefits	106,502			100,894			205,818			196,705
Equipment	9,909			9,307			18,911			18,074
Operating lease equipment depreciation	5,662			3,385			10,298			5,435
Occupancy, net	12,586			11,943			25,687			23,891
Data processing	7,804			7,138			15,729			13,657
Advertising and marketing	8,726			6,941			13,876			10,720
Professional fees	7,510			5,419			12,170			9,478
Amortization of other intangible assets	1,141			1,248			2,305			2,546
FDIC insurance	3,874			4,040			8,030			7,653
OREO expense, net	739			1,348			2,404			1,908
Other	19,091			19,306			36,434			34,632
Total non-interest expense	183,544			170,969			351,662			324,699
Income before taxes	101,946			79,971			189,964			158,468
Income tax expense	37,049			29,930			66,689			59,316
Net income	$	64,897		$	50,041		$	123,275		$	99,152
Preferred stock dividends	2,050			3,628			5,678			7,256
Net income applicable to common shares	$	62,847		$	46,413		$	117,597		$	91,896
Net income per common share—Basic	$	1.15		$	0.94		$	2.20		$	1.88
Net income per common share—Diluted	$	1.11		$	0.90		$	2.11		$	1.80
Cash dividends declared per common share	$	0.14		$	0.12		$	0.28		$	0.24
Weighted average common shares outstanding	54,775			49,140			53,528			48,794
Dilutive potential common shares	1,812			3,965			2,981			3,887
Average common shares and dilutive common shares	56,587			53,105			56,509			52,681

See accompanying notes to unaudited consolidated financial statements.

2

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

	Three Months Ended						Six Months Ended
(In thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Net income	$	64,897		$	50,041		$	123,275		$	99,152
Unrealized gains on securities
Before tax	17,593			5,968			24,972			31,144
Tax effect	(6,910		)	(2,244		)	(9,810		)	(12,232		)
Net of tax	10,683			3,724			15,162			18,912
Reclassification of net gains (losses) included in net income
Before tax	47			1,440			(8		)	2,765
Tax effect	(18		)	(565		)	3			(1,086		)
Net of tax	29			875			(5		)	1,679
Reclassification of amortization of unrealized gains and losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	22			(3,832		)	1,450			(7,257		)
Tax effect	(9		)	1,506			(570		)	2,845
Net of tax	13			(2,326		)	880			(4,412		)
Net unrealized gains on securities	10,641			5,175			14,287			21,645
Unrealized (losses) gains on derivative instruments
Before tax	(310		)	(523		)	1,305			(45		)
Tax effect	123			206			(511		)	18
Net unrealized (losses) gains on derivative instruments	(187		)	(317		)	794			(27		)
Foreign currency adjustment
Before tax	3,820			856			5,035			9,203
Tax effect	(987		)	(244		)	(1,325		)	(2,553		)
Net foreign currency adjustment	2,833			612			3,710			6,650
Total other comprehensive income	13,287			5,470			18,791			28,268
Comprehensive income	$	78,184		$	55,511		$	142,066		$	127,420

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, 2016	$	251,287		$	48,469	$	1,190,988		$	(3,973	)	$	928,211		$	(62,708	)	$	2,352,274
Net income	—			—		—			—			99,152			—			99,152
Other comprehensive income, net of tax	—			—		—			—			—			28,268			28,268
Cash dividends declared on common stock	—			—		—			—			(11,643		)	—			(11,643		)
Dividends on preferred stock	—			—		—			—			(7,256		)	—			(7,256		)
Stock-based compensation	—			—		4,752			—			—			—			4,752
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	—			97		2,991			—			—			—			3,088
Restricted stock awards	—			87		114			(172		)	—			—			29
Employee stock purchase plan	—			29		1,270			—			—			—			1,299
Director compensation plan	—			25		784			—			—			—			809
Balance at June 30, 2016	$	251,257		$	51,708	$	1,350,751		$	(4,145	)	$	1,008,464		$	(34,440	)	$	2,623,595
Balance at January 1, 2017	$	251,257		$	51,978	$	1,365,781		$	(4,589	)	$	1,096,518		$	(65,328	)	$	2,695,617
Net income	—			—		—			—			123,275			—			123,275
Other comprehensive income, net of tax	—			—		—			—			—			18,791			18,791
Cash dividends declared on common stock	—			—		—			—			(15,118		)	—			(15,118		)
Dividends on preferred stock	—			—		—			—			(5,678		)	—			(5,678		)
Stock-based compensation	—			—		5,746			—			—			—			5,746
Conversion of Series C preferred stock to common stock	(126,257		)	3,121		123,136			—			—			—			—
Common stock issued for:
Exercise of stock options and warrants	—			573		14,488			—			—			—			15,061
Restricted stock awards	—			79		(79		)	(295		)	—			—			(295		)
Employee stock purchase plan	—			19		1,230			—			—			—			1,249
Director compensation plan	—			32		778			—			—			—			810
Balance at June 30, 2017	$	125,000		$	55,802	$	1,511,080		$	(4,884	)	$	1,198,997		$	(46,537	)	$	2,839,458

See accompanying notes to unaudited consolidated financial statements.

4

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Six Months Ended
(In thousands)	June 30, 2017			June 30, 2016
Operating Activities:
Net income	$	123,275		$	99,152
Adjustments to reconcile net income to net cash provided by (used for) operating activities
Provision for credit losses	14,100			17,163
Depreciation, amortization and accretion, net	29,958			27,296
Stock-based compensation expense	5,746			4,752
Net amortization of premium on securities	3,198			1,840
Accretion of discount on loans	(11,979		)	(15,849		)
Mortgage servicing rights fair value change, net	(1,265		)	(4,291		)
Originations and purchases of mortgage loans held-for-sale	(1,856,725		)	(1,948,890		)
Proceeds from sales of mortgage loans held-for-sale	1,928,870			1,825,686
Bank owned life insurance ("BOLI") income	(1,873		)	(1,729		)
Decrease (increase) in trading securities, net	2			(3,165		)
Net decrease in brokerage customer receivables	1,900			765
Gains on mortgage loans sold	(43,547		)	(43,014		)
Losses (gains) on investment securities, net	8			(2,765		)
Gains on early extinguishment of debt	—			(4,305		)
(Gains) losses on sales of premises and equipment, net	(140		)	3
Net losses on sales and fair value adjustments of other real estate owned	896			322
Increase in accrued interest receivable and other assets, net	(45,232		)	(116,118		)
(Decrease) increase in accrued interest payable and other liabilities, net	(22,451		)	70,756
Net Cash Provided by (Used for) Operating Activities	124,741			(92,391		)
Investing Activities:
Proceeds from maturities of available-for-sale securities	138,516			529,463
Proceeds from maturities of held-to-maturity securities	50,923			319
Proceeds from sales and calls of available-for-sale securities	9,729			1,071,996
Proceeds from calls of held-to-maturity securities	51,062			281,981
Purchases of available-for-sale securities	(185,245		)	(1,526,467		)
Purchases of held-to-maturity securities	(256,532		)	(350,078		)
Redemption (purchase) of Federal Home Loan Bank and Federal Reserve Bank stock, net	52,682			(19,738		)
Net cash paid in business combinations	(284		)	(18,133		)
Proceeds from sales of other real estate owned	8,601			19,455
Proceeds received from the FDIC related to reimbursements on covered assets	791			420
Net increase in interest bearing deposits with banks	(31,178		)	(81,250		)
Net increase in loans	(1,032,772		)	(942,958		)
Redemption of BOLI	—			659
Purchases of premises and equipment, net	(26,260		)	(24,235		)
Net Cash Used for Investing Activities	(1,219,967		)	(1,058,566		)
Financing Activities:
Increase in deposit accounts	947,150			1,302,188
Increase (decrease) in subordinated notes and other borrowings, net	15,163			(13,249		)
Increase (decrease) in Federal Home Loan Bank advances, net	163,000			(271,025		)
Proceeds from the issuance of common stock, net	—			152,823
Redemption of junior subordinated debentures, net	—			(10,695		)
Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and conversion of common stock warrants	17,120			5,766
Common stock repurchases for tax withholdings related to stock-based compensation	(295		)	(172		)
Dividends paid	(20,796		)	(18,899		)
Net Cash Provided by Financing Activities	1,121,342			1,146,737
Net Increase (Decrease) in Cash and Cash Equivalents	26,116			(4,220		)
Cash and Cash Equivalents at Beginning of Period	270,045			275,795
Cash and Cash Equivalents at End of Period	$	296,161		$	271,575

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, 2016 (“2016 Form 10-K”). Operating results reported for the period 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 2016 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. In May 2016 and December 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients” and ASU 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” to clarify specific aspects of implementation, including the collectability criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications, completed contracts at transition, the applicability of loan guarantee fees, impairment of capitalized contract costs and certain disclosure requirements. In February 2017, the FASB issued ASU No. 2017-05, “Other

6

Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets,” to clarify the implementation guidance within ASU No. 2014-09 surrounding transfers of nonfinancial assets, including partial sales of such assets, and its impact on revenue recognition. Like ASU No. 2014-09, this guidance is effective for fiscal years beginning after December 15, 2017.

The Company is currently evaluating the impact on the consolidated financial statements of adopting this new guidance. The Company is currently assessing specific characteristics of the various sources of revenues previously identified as being affected by the new guidance and has reviewed specific contracts related to those sources. As certain significant revenue sources such as interest income are considered not in-scope, the Company does not believe the new guidance will have a significant impact on its consolidated financial statements. The Company expects to adopt the new guidance using the modified retrospective approach.

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 discounted 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. Excluding any impact from the clarification of contracts representing a lease, the Company expects to recognize separate lease liabilities and right to use assets for the amounts related to certain facilities under operating lease agreements disclosed in Note 15 - Minimum Lease Commitments in the 2016 Form 10-K. Additionally, the Company does not expect to significantly change operating lease agreements prior to adoption.

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 was effective for fiscal years beginning after December 15, 2016 and did not 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

7

income be recognized in earnings at the date the investment qualifies for such accounting. This guidance was effective for fiscal years beginning after December 15, 2016 and did not 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 included 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 was effective for fiscal years beginning after December 15, 2016. In the first six months of 2017, the Company recorded $3.9 million of excess tax benefits within income tax expense on the Consolidated Statements of Income as a result of adoption.

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 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. Specifically, the Company has established a group consisting of individuals from the various areas of the Company tasked with transitioning to the new requirements. At this time, the Company is reviewing potential methodologies for estimating expected credit losses using reasonable and supportable forecast information and has identified certain data and system requirements.

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.

In November 2016, the FASB issued ASU No. 2016-18 “Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force),”to clarify the classification and presentation of changes in restricted cash on the statement of cash flows. 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. 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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Consolidation

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 was effective for fiscal years beginning after December 15, 2016 and did not have a material impact on the Company's consolidated financial statements.

Business Combinations

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” to improve such definition and, as a result, assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The definition of a business impacts many areas of accounting including acquisitions, disposals, goodwill and consolidation. 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 prospective approach. The Company expects the adoption of this new guidance to impact the determination of whether future acquisitions are considered a business combination and the resulting impact of such determination on the consolidated financial statements.

Goodwill

In January 2017, the FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” to simplify the subsequent measurement of goodwill. When the carrying amount of a reporting unit exceeds its fair value, an entity would no longer be required to determine goodwill impairment by assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit was acquired in a business combination. Goodwill impairment would be recognized according to the excess of the carrying amount of the reporting unit over the calculated fair value of such unit. 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 prospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Compensation

In March 2017, the FASB issued ASU No. 2017-07, “Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. An entity will be required to report the service cost component of such costs in the same line item or items as other compensation costs related to services rendered. Additionally, only the service cost component will be eligible for capitalization when applicable. 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 related to presentation of the service cost component and a prospective approach related to capitalization of such costs. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, “Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting,” to clarify when modification accounting is appropriate for changes to the terms and conditions of a share-based payment award. An entity will be required to account for such changes as a modification unless certain criteria is met. 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 prospective approach for awards modified on or after the adoption date. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Amortization of Premium on Certain Debt Securities

In March 2017, the FASB issued ASU No. 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities,” to amend the amortization period for certain purchased callable debt securities held at a premium. The amortization period for such securities will be shortened to the earliest call date. 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. Early adoption is permitted as of the beginning of an annual period that

9

has not been issued or made available for issuance. The Company has not early adopted this guidance. 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 November 18, 2016, the Company acquired First Community Financial Corporation ("FCFC"). FCFC was the parent company of First Community Bank. Through this transaction, the Company acquired First Community Bank's two banking locations in Elgin, Illinois. First Community Bank was merged into the Company's wholly-owned subsidiary St. Charles Bank & Trust Company ("St. Charles Bank"). The Company acquired assets with a fair value of approximately $187.2 million, including approximately $79.5 million of loans, and assumed deposits with a fair value of approximately $150.3 million. Additionally, the Company recorded goodwill of $13.0 million on the acquisition.

On August 19, 2016, the Company, through its wholly-owned subsidiary Lake Forest Bank & Trust Company ("Lake Forest Bank"), acquired approximately $561.4 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 $134.2 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.

FDIC-Assisted Transactions

From 2010 to 2012, 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 loss 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

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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. In the second quarter of 2017, the Company recorded a $4.9 million reduction to the estimated loss share liability as a result of an adjustment related to such clawback provisions. 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 during the periods indicated:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Balance at beginning of period	$	18,263		$	10,029		$	16,701		$	6,100
Reductions from reimbursable expenses	(75		)	(648		)	(157		)	(730		)
Amortization	455			506			699			866
Changes in expected reimbursements (to) from the FDIC for changes in expected credit losses and reimbursable expenses	(3,673		)	1,785			(2,659		)	5,073
Payments received from the FDIC	405			57			791			420
Balance at end of period	$	15,375		$	11,729		$	15,375		$	11,729

Mortgage Banking Acquisitions

On February 14, 2017, the Company acquired certain assets and assumed certain liabilities of the mortgage banking business of American Homestead Mortgage, LLC ("AHM"). The Company recorded goodwill of $999,000 on the acquisition.

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. 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:

	June 30, 2017
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	119,804	$	—	$	(723	)	$	119,081
U.S. Government agencies	158,162		22		(674		)	157,510
Municipal	121,610		2,774		(264		)	124,120
Corporate notes:
Financial issuers	60,340		71		(810		)	59,601
Other	1,000		—		(3		)	997
Mortgage-backed: (1)
Mortgage-backed securities	1,139,734		2,301		(31,704		)	1,110,331
Collateralized mortgage obligations	42,845		433		(319		)	42,959
Equity securities	32,642		3,028		(633		)	35,037
Total available-for-sale securities	$	1,676,137	$	8,629	$	(35,130	)	$	1,649,636
Held-to-maturity securities
U.S. Government agencies	$	585,071	$	556	$	(7,461	)	$	578,166
Municipal	208,305		2,298		(1,280		)	209,323
Total held-to-maturity securities	$	793,376	$	2,854	$	(8,741	)	$	787,489

	December 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	142,741	$	1	$	(759	)	$	141,983
U.S. Government agencies	189,540		47		(435		)	189,152
Municipal	129,446		2,969		(606		)	131,809
Corporate notes:
Financial issuers	65,260		132		(1,000		)	64,392
Other	1,000		—		(1		)	999
Mortgage-backed: (1)
Mortgage-backed securities	1,185,448		284		(54,330		)	1,131,402
Collateralized mortgage obligations	30,105		67		(490		)	29,682
Equity securities	32,608		3,429		(789		)	35,248
Total available-for-sale securities	$	1,776,148	$	6,929	$	(58,410	)	$	1,724,667
Held-to-maturity securities
U.S. Government agencies	$	433,343	$	7	$	(24,470	)	$	408,880
Municipal	202,362		647		(4,287		)	198,722
Total held-to-maturity securities	$	635,705	$	654	$	(28,757	)	$	607,602

	June 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	122,296	$	35	$	(1	)	$	122,330
U.S. Government agencies	69,678		238		—			69,916
Municipal	108,179		3,588		(127		)	111,640
Corporate notes:
Financial issuers	68,097		1,502		(1,411		)	68,188
Other	1,500		2		—			1,502
Mortgage-backed: (1)
Mortgage-backed securities	162,593		4,280		(150		)	166,723
Collateralized mortgage obligations	40,419		457		(91		)	40,785
Equity securities	51,426		5,544		(391		)	56,579
Total available-for-sale securities	$	624,188	$	15,646	$	(2,171	)	$	637,663
Held-to-maturity securities
U.S. Government agencies	$	789,482	$	11,861	$	(647	)	$	800,696
Municipal	202,729		6,967		(213		)	209,483
Total held-to-maturity securities	$	992,211	$	18,828	$	(860	)	$	1,010,179

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

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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 June 30, 2017:

	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	$	119,081	$	(723	)	$	—	$	—		$	119,081	$	(723	)
U.S. Government agencies	152,149		(674		)	—		—			152,149		(674		)
Municipal	145,960		(155		)	5,852		(109		)	151,812		(264		)
Corporate notes:
Financial issuers	—		—			35,154		(810		)	35,154		(810		)
Other	997		(3		)	—		—			997		(3		)
Mortgage-backed:
Mortgage-backed securities	932,800		(31,704		)	—		—			932,800		(31,704		)
Collateralized mortgage obligations	11,809		(122		)	7,353		(197		)	19,162		(319		)
Equity securities	10,189		(271		)	5,138		(362		)	15,327		(633		)
Total available-for-sale securities	$	1,372,985	$	(33,652	)	$	53,497	$	(1,478	)	$	1,426,482	$	(35,130	)
Held-to-maturity securities
U.S. Government agencies	$	363,692	$	(7,461	)	$	—	$	—		$	363,692	$	(7,461	)
Municipal	73,447		(1,280		)	—		—			73,447		(1,280		)
Total held-to-maturity securities	$	437,139	$	(8,741	)	$	—	$	—		$	437,139	$	(8,741	)

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

The Company does not consider securities with unrealized losses at June 30, 2017 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 June 30,						Six months ended June 30,
(Dollars in thousands)	2017			2016			2017			2016
Realized gains	$	48		$	1,487		$	48		$	4,037
Realized losses	(1		)	(47		)	(56		)	(1,272		)
Net realized gains (losses)	$	47		$	1,440		$	(8	)	$	2,765
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	47		$	1,440		$	(8	)	$	2,765
Proceeds from sales and calls of available-for-sale securities	$	3,724		$	1,068,795		$	9,729		$	1,071,996
Proceeds from calls of held-to-maturity securities	2			183,738			51,062			281,981

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The amortized cost and fair value of securities as of June 30, 2017, December 31, 2016 and June 30, 2016, 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 determined to be available-for-sale are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2017				December 31, 2016				June 30, 2016
(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	$	125,706	$	125,170	$	145,353	$	145,062	$	214,917	$	215,290
Due in one to five years	289,688		289,243		321,019		320,423		113,263		113,395
Due in five to ten years	38,213		39,463		27,319		28,451		28,111		30,870
Due after ten years	7,309		7,433		34,296		34,399		13,459		14,021
Mortgage-backed	1,182,579		1,153,290		1,215,553		1,161,084		203,012		207,508
Equity securities	32,642		35,037		32,608		35,248		51,426		56,579
Total available-for-sale securities	$	1,676,137	$	1,649,636	$	1,776,148	$	1,724,667	$	624,188	$	637,663
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	32,925		32,776		29,794		29,416		27,505		27,738
Due in five to ten years	172,398		172,800		69,664		67,820		68,691		70,121
Due after ten years	588,053		581,913		536,247		510,366		896,015		912,320
Total held-to-maturity securities	$	793,376	$	787,489	$	635,705	$	607,602	$	992,211	$	1,010,179

Securities having a fair value of $1.5 billion at June 30, 2017 as well as securities having a fair value of $1.4 billion at December 31, 2016 and June 30, 2016 were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank ("FHLB") advances, securities sold under repurchase agreements and derivatives. At June 30, 2017, 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:

	June 30,			December 31,			June 30,
(Dollars in thousands)	2017			2016			2016
Balance:
Commercial	$	6,406,289		$	6,005,422		$	5,144,533
Commercial real estate	6,402,494			6,196,087			5,848,334
Home equity	689,483			725,793			760,904
Residential real estate	762,810			705,221			653,664
Premium finance receivables—commercial	2,648,386			2,478,581			2,478,280
Premium finance receivables—life insurance	3,719,043			3,470,027			3,161,562
Consumer and other	114,827			122,041			127,378
Total loans, net of unearned income, excluding covered loans	$	20,743,332		$	19,703,172		$	18,174,655
Covered loans	50,119			58,145			105,248
Total loans	$	20,793,451		$	19,761,317		$	18,279,903
Mix:
Commercial	31		%	30		%	28		%
Commercial real estate	31			31			31
Home equity	3			4			4
Residential real estate	3			4			4
Premium finance receivables—commercial	13			12			14
Premium finance receivables—life insurance	18			18			17
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	100		%	100		%	99		%
Covered loans	—			—			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 $81.0 million at June 30, 2017, $69.6 million at December 31, 2016 and $64.1 million at June 30, 2016. 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 $6.5 million at June 30, 2017, $2.6 million at December 31, 2016 and $(5.0) million at June 30, 2016. The net credit balance at June 30, 2016, is primarily the result of purchase accounting adjustments related to acquisitions in 2016 and 2015.

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

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 determined that it was probable that the Company would be unable to collect all contractually required principal and interest payments. The following table presents the unpaid principal balance and carrying value for these acquired loans:

	June 30, 2017				December 31, 2016
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
PCI loans	$	443,216	$	412,519	$	509,446	$	471,786

See Note 7—Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion regarding the allowance for loan losses associated with PCI loans at June 30, 2017.

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						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Accretable yield, beginning balance	$	45,762		$	59,218		$	49,408		$	63,902
Acquisitions	(105		)	125			426			1,266
Accretable yield amortized to interest income	(5,477		)	(5,199		)	(11,076		)	(10,656		)
Accretable yield amortized to indemnification asset/liability (1)	(361		)	(1,624		)	(715		)	(3,795		)
Reclassification from non-accretable difference (2)	3,554			2,536			6,089			6,729
Decreases in interest cash flows due to payments and changes in interest rates	2,137			574			1,378			(1,816		)
Accretable yield, ending balance (3)	$	45,510		$	55,630		$	45,510		$	55,630

(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 June 30, 2017, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $448,000. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income accounted for under ASC 310-30 totaled $5.5 million and $5.2 million in the second quarter of 2017 and 2016, respectively. For the six months ended June 30, 2017 and 2016, the Company recorded accretion to interest income of $11.1 million and $10.7 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.

16

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

The tables below show the aging of the Company’s loan portfolio at June 30, 2017, December 31, 2016 and June 30, 2016:

As of June 30, 2017			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	$	8,720	$	—	$	5,917	$	12,658	$	4,067,237	$	4,094,532
Franchise	—		—		—		—		838,394		838,394
Mortgage warehouse lines of credit	—		—		—		2,361		232,282		234,643
Asset-based lending	936		—		983		7,293		862,694		871,906
Leases	535		—		—		60		356,009		356,604
PCI - commercial (1)	—		1,572		162		—		8,476		10,210
Total commercial	10,191		1,572		7,062		22,372		6,365,092		6,406,289
Commercial real estate:
Construction	2,408		—		—		—		707,179		709,587
Land	202		—		—		6,455		105,496		112,153
Office	4,806		—		607		7,725		874,546		887,684
Industrial	2,193		—		—		709		789,889		792,791
Retail	1,635		—		—		15,081		903,778		920,494
Multi-family	354		—		—		1,186		813,058		814,598
Mixed use and other	5,382		—		713		7,590		2,005,265		2,018,950
PCI - commercial real estate (1)	—		8,768		322		3,303		133,844		146,237
Total commercial real estate	16,980		8,768		1,642		42,049		6,333,055		6,402,494
Home equity	9,482		—		855		2,858		676,288		689,483
Residential real estate, including PCI	14,292		775		1,273		300		746,170		762,810
Premium finance receivables
Commercial insurance loans	10,456		5,922		4,951		11,713		2,615,344		2,648,386
Life insurance loans	—		1,046		—		16,977		3,474,686		3,492,709
PCI - life insurance loans (1)	—		—		—		—		226,334		226,334
Consumer and other, including PCI	439		125		331		515		113,417		114,827
Total loans, net of unearned income, excluding covered loans	$	61,840	$	18,208	$	16,114	$	96,784	$	20,550,386	$	20,743,332
Covered loans	1,961		2,504		113		598		44,943		50,119
Total loans, net of unearned income	$	63,801	$	20,712	$	16,227	$	97,382	$	20,595,329	$	20,793,451

(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, 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	$	13,441	$	174	$	2,341	$	11,779	$	3,716,977	$	3,744,712
Franchise	—		—		—		493		869,228		869,721
Mortgage warehouse lines of credit	—		—		—		—		204,225		204,225
Asset-based lending	1,924		—		135		1,609		871,402		875,070
Leases	510		—		—		1,331		293,073		294,914
PCI - commercial (1)	—		1,689		100		2,428		12,563		16,780
Total commercial	15,875		1,863		2,576		17,640		5,967,468		6,005,422
Commercial real estate
Construction	2,408		—		—		1,824		606,007		610,239
Land	394		—		188		—		104,219		104,801
Office	4,337		—		4,506		1,232		857,599		867,674
Industrial	7,047		—		4,516		2,436		756,602		770,601
Retail	597		—		760		3,364		907,872		912,593
Multi-family	643		—		322		1,347		805,312		807,624
Mixed use and other	6,498		—		1,186		12,632		1,931,859		1,952,175
PCI - commercial real estate (1)	—		16,188		3,775		8,888		141,529		170,380
Total commercial real estate	21,924		16,188		15,253		31,723		6,110,999		6,196,087
Home equity	9,761		—		1,630		6,515		707,887		725,793
Residential real estate, including PCI	12,749		1,309		936		8,271		681,956		705,221
Premium finance receivables
Commercial insurance loans	14,709		7,962		5,646		14,580		2,435,684		2,478,581
Life insurance loans	—		3,717		17,514		16,204		3,182,935		3,220,370
PCI - life insurance loans (1)	—		—		—		—		249,657		249,657
Consumer and other, including PCI	439		207		100		887		120,408		122,041
Total loans, net of unearned income, excluding covered loans	$	75,457	$	31,246	$	43,655	$	95,820	$	19,456,994	$	19,703,172
Covered loans	2,121		2,492		225		1,553		51,754		58,145
Total loans, net of unearned income	$	77,578	$	33,738	$	43,880	$	97,373	$	19,508,748	$	19,761,317

As of June 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	$	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

(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 a loan amount, or portion thereof, is determined to be 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 June 30, 2017, December 31, 2016 and June 30, 2016:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Loan Balances:
Commercial
Commercial, industrial and other	$	4,085,812	$	3,731,097	$	3,440,161	$	8,720	$	13,615	$	16,414	$	4,094,532	$	3,744,712	$	3,456,575
Franchise	838,394		869,721		289,905		—		—		—		838,394		869,721		289,905
Mortgage warehouse lines of credit	234,643		204,225		270,586		—		—		—		234,643		204,225		270,586
Asset-based lending	870,970		873,146		842,432		936		1,924		235		871,906		875,070		842,667
Leases	356,069		294,404		267,687		535		510		387		356,604		294,914		268,074
PCI - commercial (1)	10,210		16,780		16,726		—		—		—		10,210		16,780		16,726
Total commercial	6,396,098		5,989,373		5,127,497		10,191		16,049		17,036		6,406,289		6,005,422		5,144,533
Commercial real estate
Construction	707,179		607,831		404,232		2,408		2,408		673		709,587		610,239		404,905
Land	111,951		104,407		104,156		202		394		1,725		112,153		104,801		105,881
Office	882,878		863,337		903,179		4,806		4,337		6,274		887,684		867,674		909,453
Industrial	790,598		763,554		756,474		2,193		7,047		10,295		792,791		770,601		766,769
Retail	918,859		911,996		896,930		1,635		597		916		920,494		912,593		897,846
Multi-family	814,244		806,981		778,427		354		643		90		814,598		807,624		778,517
Mixed use and other	2,013,568		1,945,677		1,808,223		5,382		6,498		4,442		2,018,950		1,952,175		1,812,665
PCI - commercial real estate(1)	146,237		170,380		172,298		—		—		—		146,237		170,380		172,298
Total commercial real estate	6,385,514		6,174,163		5,823,919		16,980		21,924		24,415		6,402,494		6,196,087		5,848,334
Home equity	680,001		716,032		752,342		9,482		9,761		8,562		689,483		725,793		760,904
Residential real estate, including PCI	748,339		692,472		641,251		14,471		12,749		12,413		762,810		705,221		653,664
Premium finance receivables
Commercial insurance loans	2,632,008		2,455,910		2,453,225		16,378		22,671		25,055		2,648,386		2,478,581		2,478,280
Life insurance loans	3,491,663		3,216,653		2,869,960		1,046		3,717		—		3,492,709		3,220,370		2,869,960
PCI - life insurance loans (1)	226,334		249,657		291,602		—		—		—		226,334		249,657		291,602
Consumer and other, including PCI	114,325		121,458		126,740		502		583		638		114,827		122,041		127,378
Total loans, net of unearned income, excluding covered loans	$	20,674,282	$	19,615,718	$	18,086,536	$	69,050	$	87,454	$	88,119	$	20,743,332	$	19,703,172	$	18,174,655

(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 six months endedJune 30, 2017 and 2016 is as follows:

Three months ended June 30, 2017				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	46,582		$	52,633		$	12,203		$	5,530		$	7,559		$	1,312		$	125,819
Other adjustments	(2		)	(47		)	—			(3		)	22			—			(30		)
Reclassification from allowance for unfunded lending-related commitments	92			14			—			—			—			—			106
Charge-offs	(913		)	(1,985		)	(1,631		)	(146		)	(1,878		)	(175		)	(6,728		)
Recoveries	561			276			144			54			404			33			1,472
Provision for credit losses	6,038			1,448			418			708			245			95			8,952
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296
Individually evaluated for impairment	$	2,528		$	1,473		$	1,296		$	764		$	—		$	91		$	6,152
Collectively evaluated for impairment	49,692			51,952			9,838			5,306			6,352			1,174			124,314
Loans acquired with deteriorated credit quality	638			119			—			73			—			—			830
Loans at period end
Individually evaluated for impairment	$	14,469		$	34,690		$	9,633		$	20,859		$	—		$	421		$	80,072
Collectively evaluated for impairment	6,381,610			6,221,567			679,850			708,042			6,141,095			113,319			20,245,483
Loans acquired with deteriorated credit quality	10,210			146,237			—			3,736			226,334			1,087			387,604
Loans held at fair value	—			—			—			30,173			—			—			30,173

Three months ended June 30, 2016	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Other adjustments	(59		)	(70		)	—			(9		)	4			—			(134		)
Reclassification from allowance for unfunded lending-related commitments	—			(40		)	—			—			—			—			(40		)
Charge-offs	(721		)	(502		)	(2,046		)	(693		)	(1,911		)	(224		)	(6,097		)
Recoveries	121			296			71			31			633			35			1,187
Provision for credit losses	3,878			1,877			443			912			1,883			276			9,269
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426
Individually evaluated for impairment	$	3,417		$	2,121		$	477		$	625		$	—		$	5		$	6,645
Collectively evaluated for impairment	37,571			45,736			10,906			4,720			7,814			1,271			108,018
Loans acquired with deteriorated credit quality	666			37			—			60			—			—			763
Loans at period end
Individually evaluated for impairment	$	21,173		$	49,284		$	8,562		$	17,281		$	—		$	536		$	96,836
Collectively evaluated for impairment	5,106,634			5,626,752			752,342			615,831			5,348,240			126,842			17,576,641
Loans acquired with deteriorated credit quality	16,726			172,298			—			4,258			291,602			—			484,884
Loans held at fair value	—			—			—			16,294			—			—			16,294

21

Six months ended June 30, 2017				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	$	44,493		$	51,422		$	11,774		$	5,714		$	7,625		$	1,263		$	122,291
Other adjustments	(21		)	(83		)	—			(7		)	25			—			(86		)
Reclassification from allowance for unfunded lending-related commitments	—			(32		)	—			—			—			—			(32		)
Charge-offs	(1,554		)	(2,246		)	(2,256		)	(475		)	(3,305		)	(309		)	(10,145		)
Recoveries	834			830			209			232			1,016			174			3,295
Provision for credit losses	8,606			2,448			1,407			679			991			137			14,268
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296

Six months ended June 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	(68		)	(146		)	—			(39		)	41			—			(212		)
Reclassification from allowance for unfunded lending-related commitments	—			(121		)	—			—			—			—			(121		)
Charge-offs	(1,392		)	(1,173		)	(3,098		)	(1,186		)	(4,391		)	(331		)	(11,571		)
Recoveries	750			665			119			143			1,420			71			3,168
Provision for credit losses	6,229			3,841			2,350			1,753			3,511			8			17,692
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426

A summary of activity in the allowance for covered loan losses for the three and six months endedJune 30, 2017 and 2016 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2017			2016			2017			2016
Balance at beginning of period	$	1,319		$	2,507		$	1,322		$	3,026
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(303		)	(702		)	(838		)	(2,648		)
Benefit attributable to FDIC loss share agreements	242			562			670			2,119
Net provision for covered loan losses	(61		)	(140		)	(168		)	(529		)
Increase/decrease in FDIC indemnification liability/asset	(242		)	(562		)	(670		)	(2,119		)
Loans charged-off	(120		)	(143		)	(336		)	(373		)
Recoveries of loans charged-off	178			750			926			2,407
Net recoveries	58			607			590			2,034
Balance at end of period	$	1,074		$	2,412		$	1,074		$	2,412

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

22

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:

	June 30,		December 31,		June 30,
(Dollars in thousands)	2017		2016		2016
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	29,037	$	33,146	$	42,968
Impaired loans with no allowance for loan loss required	50,281		57,370		53,008
Total impaired loans (2)	$	79,318	$	90,516	$	95,976
Allowance for loan losses related to impaired loans	$	5,633	$	6,377	$	6,611
TDRs	$	33,091	$	41,708	$	49,635

(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 Six Months Ended
	As of June 30, 2017						June 30, 2017
	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	$	2,969	$	3,006	$	1,499	$	3,061	$	83
Asset-based lending	511		512		293		704		21
Leases	2,504		2,508		235		2,578		62
Commercial real estate
Construction	7,632		7,632		957		7,665		165
Land	1,750		1,750		7		1,750		32
Office	1,314		1,418		32		1,318		44
Industrial	—		—		—		—		—
Retail	1,582		1,631		130		1,596		40
Multi-family	1,513		1,513		27		1,518		28
Mixed use and other	1,455		1,531		302		1,478		35
Home equity	1,901		1,950		1,296		1,920		35
Residential real estate	5,815		6,090		764		5,731		118
Consumer and other	91		93		91		96		2
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	6,815	$	7,785	$	—	$	7,285	$	213
Asset-based lending	425		425		—		764		16
Leases	852		852		—		879		26
Commercial real estate
Construction	1,504		1,504		—		1,534		33
Land	2,375		2,472		—		2,380		56
Office	3,973		5,074		—		4,076		131
Industrial	2,193		3,622		—		4,328		190
Retail	1,188		1,273		—		1,188		51
Multi-family	89		174		—		89		4
Mixed use and other	7,761		9,299		—		8,494		239
Home equity	7,732		11,260		—		8,906		258
Residential real estate	15,044		17,068		—		15,203		368
Consumer and other	330		434		—		333		11
Total impaired loans, net of unearned income	$	79,318	$	90,876	$	5,633	$	84,874	$	2,261

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							For the Twelve Months Ended
	As of December 31, 2016						December 31, 2016
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	2,601	$	2,617	$	1,079	$	2,649	$	134
Asset-based lending	233		235		26		235		10
Leases	2,441		2,443		107		2,561		128
Commercial real estate
Construction	5,302		5,302		86		5,368		164
Land	1,283		1,283		1		1,303		47
Office	2,687		2,697		324		2,797		137
Industrial	5,207		5,843		1,810		7,804		421
Retail	1,750		1,834		170		2,039		101
Multi-family	—		—		—		—		—
Mixed use and other	3,812		4,010		592		4,038		195
Home equity	1,961		1,873		1,233		1,969		75
Residential real estate	5,752		6,327		849		5,816		261
Consumer and other	117		121		100		131		7
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,534	$	14,704	$	—	$	14,944	$	948
Asset-based lending	1,691		2,550		—		8,467		377
Leases	873		873		—		939		56
Commercial real estate
Construction	4,003		4,003		—		4,161		81
Land	3,034		3,503		—		3,371		142
Office	3,994		5,921		—		4,002		323
Industrial	2,129		2,436		—		2,828		274
Retail	—		—		—		—		—
Multi-family	1,903		1,987		—		1,825		84
Mixed use and other	6,815		7,388		—		6,912		397
Home equity	8,033		10,483		—		8,830		475
Residential real estate	11,983		14,124		—		12,041		622
Consumer and other	378		489		—		393		26
Total impaired loans, net of unearned income	$	90,516	$	103,046	$	6,377	$	105,423	$	5,485

							For the Six Months Ended
	As of June 30, 2016						June 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	$	10,253	$	12,866	$	3,280	$	10,172	$	375
Asset-based lending	—		—		—		—		—
Leases	387		387		128		390		10
Commercial real estate
Construction	—		—		—		—		—
Land	4,538		4,538		18		4,592		83
Office	2,401		3,059		176		2,427		70
Industrial	7,369		7,773		1,514		7,552		195
Retail	7,007		7,024		264		7,064		95
Multi-family	1,274		1,274		15		1,066		18
Mixed use and other	3,040		3,162		109		3,063		73
Home equity	1,349		1,511		477		1,443		30
Residential real estate	5,230		5,840		625		5,289		123
Consumer and other	120		148		5		123		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	10,092	$	10,950	$	—	$	10,045	$	328
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	2,677		2,677		—		2,693		77
Land	2,979		7,492		—		3,001		254
Office	6,967		8,715		—		7,107		227
Industrial	3,966		5,093		—		4,326		168
Retail	1,122		1,122		—		1,129		27
Multi-family	90		174		—		119		3
Mixed use and other	5,435		5,960		—		5,498		159
Home equity	7,213		9,674		—		8,356		219
Residential real estate	12,051		14,180		—		11,997		308
Consumer and other	416		494		—		427		14
Total impaired loans, net of unearned income	$	95,976	$	114,113	$	6,611	$	97,879	$	2,860

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TDRs

At June 30, 2017, the Company had $33.1 million in loans modified in TDRs. The $33.1 million in TDRs represents 77 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 June 30, 2017 and approximately $953,000 of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2017 and 2016, the Company recorded $49,000 and $135,000, respectively, of interest income, which was reflected as a decrease in impairment. For the six months endedJune 30, 2017 and 2016, the Company recorded $104,000 and $225,000, respectively, of interest income, which was reflected as a decrease in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2017, the Company had $8.4 million of foreclosed residential real estate properties included within OREO. Furthermore, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $12.4 million at June 30, 2017.

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The tables below present a summary of the post-modification balance of loans restructured during the three and six months endedJune 30, 2017 and 2016, respectively, which represent TDRs:

Three months ended June 30, 2017 (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	4	2,210		4	2,210		3	2,161		—	—		—	—
Total loans	4	$	2,210	4	$	2,210	3	$	2,161	—	$	—	—	$	—

Three months ended June 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	$	275	1	$	275	—	$	—	—	$	—	1	$	275
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	380		1	380		1	380		1	380		—	—
Total loans	2	$	655	2	$	655	1	$	380	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.

During the three months ended June 30, 2017, four loans totaling $2.2 million were determined to be TDRs, compared to two loans totaling $655,000 during the three months ended June 30, 2016. Of these loans extended at below market terms, the weighted average extension had a term of approximately 54 months during the quarter ended June 30, 2017 compared to 36 months for the quarter ended June 30, 2016. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 195 basis points and 275 basis points during the three months ended June 30, 2017 and 2016, respectively. Interest-only payments terms were approximately six months during the three months ended June 30, 2016. Additionally, no principal balances were forgiven in the second quarter of 2017 compared to $300,000 of principal balance forgiven in the second quarter of 2016.

Six months ended June 30, 2017 (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	$	95	1	$	95	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	1	1,245		1	1,245		—	—		—	—		—	—
Residential real estate and other	6	2,383		6	2,383		5	2,334		—	—		—	—
Total loans	8	$	3,723	8	$	3,723	5	$	2,334	—	$	—	—	$	—

(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

Six months ended June 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	2	$	317	2	$	317	—	$	—	—	$	—	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	2	540		1	380		2	540		1	380		—	—
Total loans	13	$	9,378	12	$	9,218	5	$	7,736	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.

During the six months ended June 30, 2017, eight loans totaling $3.7 million were determined to be TDRs, compared to 13 loans totaling $9.4 million in the same period of 2016. Of these loans extended at below market terms, the weighted average extension had a term of approximately 36 months during the six months ended June 30, 2017 compared to six months for the six months ended June 30, 2016. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 184 basis points and 30 basis points for the year-to-date periods June 30, 2017 and 2016, respectively. Interest-only payment terms were approximately six months during the six months ended June 30, 2016. Additionally, no principal balances were forgiven in the first six months of 2017 compared to $300,000 of principal balance forgiven during the same period of 2016.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2017 and 2016, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2017			Three Months Ended June 30, 2017			Six Months Ended June 30, 2017
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	2	$	123	1	$	28	1	$	28
Leases	2	2,949		—	—		—	—
Commercial real estate
Office	—	—		—	—		—	—
Industrial	—	—		—	—		—	—
Mixed use and other	1	1,245		—	—		—	—
Residential real estate and other	11	2,925		1	232		1	232
Total loans	16	$	7,242	2	$	260	2	$	260

(Dollars in thousands)	As of June 30, 2016			Three Months Ended June 30, 2016			Six Months Ended June 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	2	$	317	—	$	—	—	$	—
Leases	—	—		—	—		—	—
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	762		1	222		1	222
Total loans	16	$	9,801	6	$	1,413	8	$	1,614

(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, 2017		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2017
Community banking	$	427,781	$	999	$	—	$	(152	)	$	428,628
Specialty finance	38,692		—		—		826			39,518
Wealth management	32,114		—		—		—			32,114
Total	$	498,587	$	999	$	—	$	674		$	500,260

The community banking segment's goodwill increased $847,000 in the first six months of 2017 primarily as a result of the acquisition of AHM. The specialty finance segment's goodwill increased $826,000 in the first six months of 2017 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2017, the Company utilized a quantitative approach for its annual goodwill impairment test of the community banking segment and determined that no impairment existed at that time. At December 31, 2016, the Company utilized a quantitative approach for its annual goodwill impairment tests of the specialty finance and wealth management segments and determined that no impairment existed at that time. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of June 30, 2017, the Company identified no such indicators of goodwill impairment within the specialty finance and wealth management segments.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2017 is as follows:

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	37,272		$	37,272		$	34,998
Accumulated amortization	(23,632		)	(21,614		)	(19,654		)
Net carrying amount	$	13,640		$	15,658		$	15,344
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,221		)	(1,159		)	(1,100		)
Net carrying amount	$	579		$	641		$	700
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,613		)	(2,388		)	(2,163		)
Net carrying amount	$	5,327		$	5,552		$	5,777
Total other intangible assets, net	$	19,546		$	21,851		$	21,821

Estimated amortization
Actual in six months ended June 30, 2017	$	2,305
Estimated remaining in 2017	2,086
Estimated—2018	3,778
Estimated—2019	3,206
Estimated—2020	2,580
Estimated—2021	2,039

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 $2.3 million and $2.5 million for the six months ended June 30, 2017 and 2016, respectively.

(9) Deposits

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

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Balance:
Non-interest bearing	$	6,294,052		$	5,927,377		$	5,367,672
NOW and interest bearing demand deposits	2,459,238			2,624,442			2,450,710
Wealth management deposits	2,464,162			2,209,617			1,904,121
Money market	4,449,385			4,441,811			4,384,134
Savings	2,419,463			2,180,482			1,851,863
Time certificates of deposit	4,519,392			4,274,903			4,083,250
Total deposits	$	22,605,692		$	21,658,632		$	20,041,750
Mix:
Non-interest bearing	28		%	27		%	27		%
NOW and interest bearing demand deposits	11			12			12
Wealth management deposits	11			10			10
Money market	19			21			22
Savings	11			10			9
Time certificates of deposit	20			20			20
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, LLC ("WHI"), 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 FHLB advances, other borrowings and subordinated notes as of the dates shown:

(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016
FHLB advances	$	318,270	$	153,831	$	588,055
Other borrowings:
Notes payable	44,959		52,445		59,937
Short-term borrowings	46,280		61,809		38,798
Other	49,765		18,154		18,564
Secured borrowings	136,706		130,078		135,312
Total other borrowings	277,710		262,486		252,611
Subordinated notes	139,029		138,971		138,915
Total FHLB advances, other borrowings and subordinated notes	$	735,009	$	555,288	$	979,581

FHLB Advances

FHLB advances consist of obligations of the banks and are collateralized by qualifying commercial and residential real estate and home equity loans and certain securities. FHLB advances are stated at par value of the debt adjusted for unamortized prepayment fees paid at the time of prior restructurings of FHLB advances and unamortized fair value adjustments recorded in connection with advances acquired through acquisitions.

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Notes Payable

At June 30, 2017, notes payable represented a $45.0 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 June 30, 2017, the Company had a balance of $45.0 million compared to $52.4 million at December 31, 2016 and $59.9 million at June 30, 2016 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 June 30, 2017, December 31, 2016 and June 30, 2016, 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. In December 2016, the Company again amended the Credit Agreement, effectively extending the maturity date on the Revolving Credit Facility from December 12, 2016 to December 11, 2017.

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 June 30, 2017, 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 $46.3 million at June 30, 2017 compared to $61.8 million at December 31, 2016 and $38.8 million at June 30, 2016. At June 30, 2017, December 31, 2016 and June 30, 2016, securities sold under repurchase agreements represent $46.3 million, $61.8 million and $38.8 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of June 30, 2017, the Company had pledged securities related to its customer balances in sweep accounts of $69.4 million. Securities pledged for customer balances in sweep accounts and short-term borrowings from brokers are maintained under the Company’s control and consist of U.S. Government agency and mortgage-backed 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 June 30, 2017 disaggregated by investment category and maturity of the related customer sweep account, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
Mortgage-backed securities	$	44,372
Held-to-maturity securities pledged
U.S. Government agencies	25,000
Total collateral pledged	$	69,372
Excess collateral	23,092
Securities sold under repurchase agreements	$	46,280

Other Borrowings

Other borrowings at June 30, 2017 represent a fixed-rate promissory note issued by the Company in June 2017 ("Fixed-Rate Promissory Note") related to and secured by two office buildings owned by the Company, and non-recourse notes issued by the Company to other banks related to certain capital leases. At June 30, 2017, the Fixed-Rate Promissory Note had a balance of $49.5 million. Under the Fixed-Rate Promissory Note, the Company will make monthly principal payments and pay interest at a fixed rate of 3.36% until maturity on June 30, 2022. Under a previous fixed-rate promissory note with an unrelated creditor related to and secured by an office building owned by the Company, other borrowings totaled $17.7 million and $18.0 million at December 31, 2016 and June 30, 2016, respectively. In June 2017, this previous fixed-rate promissory note was paid-off upon the Company's issuance of the Fixed-Rate Promissory Note. At June 30, 2017, the non-recourse notes related to certain capital leases totaled $300,000 compared to $447,000 and $591,000 at December 31, 2016 and June 30, 2016, respectively.

Secured Borrowings

Secured borrowings at June 30, 2017 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 June 30, 2017, the translated balance of the secured borrowing totaled $123.4 million compared to $119.0 million at December 31, 2016 and $123.7 million at June 30, 2016. Additionally, the interest rate under the Receivables Purchase Agreement at June 30, 2017 was 1.6431%. The remaining $13.3 million within secured borrowings at June 30, 2017 represents other sold interests in certain loans by the Company that were not considered sales and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the various unrelated third parties.

Subordinated Notes

At June 30, 2017, the Company had outstanding subordinated notes totaling $139.0 million compared to $139.0 million and $138.9 million outstanding at December 31, 2016 and June 30, 2016, 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 June 30, 2017, 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

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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 June 30, 2017. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2017		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	4.41	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	4.10	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.90	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	3.20	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.75	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.88	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	4.30	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	3.00	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.87	%	06/2007	09/2037	06/2012
Total					$	253,566		3.45	%

The junior subordinated debentures totaled $253.6 million at June 30, 2017, December 31, 2016 and June 30, 2016.

The interest rates on the variable rate junior subordinated debentures are based on the three-month LIBOR rate and reset on a quarterly basis. At June 30, 2017, the weighted average contractual interest rate on the junior subordinated debentures was 3.45%. 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 June 30, 2017, was 3.59%. 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

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and the amount in excess of those certain limitations, subject to certain restrictions, was included in Tier 2 capital. 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 2016 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

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

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	166,329		$	142,251		$	24,078		17	%
Specialty Finance	28,558			24,352			4,206			17
Wealth Management	4,919			4,383			536			12
Total Operating Segments	199,806			170,986			28,820			17
Intersegment Eliminations	4,603			4,284			319			7
Consolidated net interest income	$	204,409		$	175,270		$	29,139		17	%
Non-interest income:
Community Banking	$	65,007		$	60,813		$	4,194		7	%
Specialty Finance	13,721			12,482			1,239			10
Wealth Management	20,573			19,863			710			4
Total Operating Segments	99,301			93,158			6,143			7
Intersegment Eliminations	(9,329		)	(8,359		)	(970		)	(12	)
Consolidated non-interest income	$	89,972		$	84,799		$	5,173		6	%
Net revenue:
Community Banking	$	231,336		$	203,064		$	28,272		14	%
Specialty Finance	42,279			36,834			5,445			15
Wealth Management	25,492			24,246			1,246			5
Total Operating Segments	299,107			264,144			34,963			13
Intersegment Eliminations	(4,726		)	(4,075		)	(651		)	(16	)
Consolidated net revenue	$	294,381		$	260,069		$	34,312		13	%
Segment profit:
Community Banking	$	46,026		$	34,576		$	11,450		33	%
Specialty Finance	14,849			12,044			2,805			23
Wealth Management	4,022			3,421			601			18
Consolidated net income	$	64,897		$	50,041		$	14,856		30	%
Segment assets:
Community Banking	$	22,032,302		$	20,190,707		$	1,841,595		9	%
Specialty Finance	4,255,109			3,645,077			610,032			17
Wealth Management	641,854			584,832			57,022			10
Consolidated total assets	$	26,929,265		$	24,420,616		$	2,508,649		10	%

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	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	322,609		$	283,949		$	38,660		14	%
Specialty Finance	55,370			45,532			9,838			22
Wealth Management	9,975			8,866			1,109			13
Total Operating Segments	387,954			338,347			49,607			15
Intersegment Eliminations	9,035			8,432			603			7
Consolidated net interest income	$	396,989		$	346,779		$	50,210		14	%
Non-interest income:
Community Banking	$	107,723		$	106,480		$	1,243		1	%
Specialty Finance	27,877			24,885			2,992			12
Wealth Management	41,375			38,615			2,760			7
Total Operating Segments	176,975			169,980			6,995			4
Intersegment Eliminations	(18,238		)	(16,429		)	(1,809		)	(11	)
Consolidated non-interest income	$	158,737		$	153,551		$	5,186		3	%
Net revenue:
Community Banking	$	430,332		$	390,429		$	39,903		10	%
Specialty Finance	83,247			70,417			12,830			18
Wealth Management	51,350			47,481			3,869			8
Total Operating Segments	564,929			508,327			56,602			11
Intersegment Eliminations	(9,203		)	(7,997		)	(1,206		)	(15	)
Consolidated net revenue	$	555,726		$	500,330		$	55,396		11	%
Segment profit:
Community Banking	$	83,703		$	69,333		$	14,370		21	%
Specialty Finance	30,947			23,516			7,431			32
Wealth Management	8,625			6,303			2,322			37
Consolidated net income	$	123,275		$	99,152		$	24,123		24	%

(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) as 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 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

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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 by comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2017, December 31, 2016 and June 30, 2016:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	8,644	$	8,011	$	12	$	—	$	—	$	1,577
Interest rate derivatives designated as Fair Value Hedges	2,074		2,228		—		26		—		999
Total derivatives designated as hedging instruments under ASC 815	$	10,718	$	10,239	$	12	$	26	$	—	$	2,576
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	35,929	$	38,974	$	89,024	$	35,317	$	37,665	$	88,316
Interest rate lock commitments	2,875		4,265		11,435		182		1,325		2,973
Forward commitments to sell mortgage loans	78		2,037		—		1,961		—		6,496
Foreign exchange contracts	103		879		581		165		849		551
Total derivatives not designated as hedging instruments under ASC 815	$	38,985	$	46,155	$	101,040	$	37,625	$	39,839	$	98,336
Total Derivatives	$	49,703	$	56,394	$	101,052	$	37,651	$	39,839	$	100,912

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 June 30, 2017, the Company had four interest rate swap derivatives designated as cash flow hedges of variable rate deposits. The interest rate swap derivatives had notional amounts of $200.0 million, $250.0 million, $275.0 million and $200.0 million and mature in June 2019, July 2019, August 2019 and June 2020, respectively. Additionally, as of June 30, 2017, the Company had two interest rate caps designated as hedges of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures. These cap derivatives 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 six months ended June 30, 2017 or June 30, 2016. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

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The table below provides details on each of these cash flow hedges as of June 30, 2017:

	June 30, 2017
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
June 2019	$	200,000	$	96
July 2019	250,000		3,750
August 2019	275,000		4,671
June 2020	200,000		122
Total Interest Rate Swaps	$	925,000	$	8,639
Interest Rate Caps:
September 2017	$	50,000	$	—
September 2017	40,000		5
Total Interest Rate Caps	$	90,000	$	5
Total Cash Flow Hedges	$	1,015,000	$	8,644

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

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016
Unrealized gain (loss) at beginning of period	$	8,559		$	(3,051	)	$	6,944	$	(3,529	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	821			832			1,037		1,555
Amount of (loss) gain recognized in other comprehensive income	(1,131		)	(1,355		)	268		(1,600		)
Unrealized gain (loss) at end of period	$	8,249		$	(3,574	)	$	8,249	$	(3,574	)

As of June 30, 2017, the Company estimates that during the next twelve months, $2.3 million will be reclassified from accumulated other comprehensive gain as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of June 30, 2017, the Company has eleven interest rate swaps with an aggregate notional amount of $121.1 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 $40,000 and $17,000 in other income related to hedge ineffectiveness for the three months ended June 30, 2017 and 2016, respectively. On a year-to-date basis, the Company recognized a net gain of $29,000 and a net loss of $22,000 in other income related to hedge ineffectiveness for the six months ended June 30, 2017 and 2016, respectively.

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The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2017 and 2016:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Three Months Ended						Amount of Gain Recognized in Income on Hedged Item Three Months Ended				Income Statement Gain due to Hedge Ineffectiveness Three Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(333	)	$	(329	)	$	373	$	346	$	40	$	17

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Six Months Ended						Amount of Gain Recognized in Income on Hedged Item Six Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Six Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(181	)	$	(883	)	$	210	$	861	$	29	$	(22	)

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 June 30, 2017, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $4.8 billion (all interest rate swaps and caps with customers and third parties) related to this program. These interest rate derivatives had maturity dates ranging from July 2017 to February 2045.

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of our residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At June 30, 2017, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $824.3 million and interest rate lock commitments with an aggregate notional amount of approximately $446.2 million. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

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

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As of June 30, 2017 the Company held foreign currency derivatives with an aggregate notional amount of approximately $39.7 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 June 30, 2017, December 31, 2016 or June 30, 2016.

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

(Dollars in thousands)		Three Months Ended						Six Months Ended
Derivative	Location in income statement	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Interest rate swaps and caps	Trading losses, net	$	(365	)	$	(432	)	$	(668	)	$	(356	)
Mortgage banking derivatives	Mortgage banking revenue	(48		)	(2,707		)	690			(843		)
Covered call options	Fees from covered call options	890			4,649			1,649			6,361
Foreign exchange contracts	Trading losses, net	(64		)	(173		)	(92		)	(236		)

Credit Risk

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

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. As of June 30, 2017, 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 $11.3 million. If the Company had breached any of these provisions and the derivatives 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)	June 30, 2017			December 31, 2016			June 30, 2016			June 30, 2017			December 31, 2016			June 30, 2016
Gross Amounts Recognized	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(15,828		)	(14,441		)	(161		)	(15,828		)	(14,441		)	(161		)
Collateral Posted (1)	(3,150		)	(8,530		)	—			(19,515		)	(12,400		)	(90,731		)
Net Credit Exposure	$	27,669		$	26,242		$	88,875		$	—		$	10,824		$	—

(1) As of June 30, 2017 and June 30, 2016, the Company posted collateral of $21.0 million and $94.2 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 June 30, 2017, the Company classified $77.3 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 also classified $4.1 million of U.S. government agencies as Level 3 at June 30, 2017. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2017, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2017 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. To determine the rating for the U.S. government agency securities, the Investment Operations Department assigned a AAA rating as it is guaranteed by the U.S. government.

At June 30, 2017 and December 31, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at June 30, 2016. At June 30, 2016, 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 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.

Loans held-for-investment—The fair value for loans in which the Company elected the fair value option is estimated by discounting future scheduled cash flows for the specific loan through maturity, adjusted for estimated credit losses and prepayments. At June 30, 2017, the Company classified $30.2 million of loans held-for-investment as Level 3. The weighted average discount rate used as an input to value these loans at June 30, 2017 was 3.70% with discount rates applied ranging from 3%-4%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. As noted above, the fair value estimate also includes assumptions of prepayment speeds and credit losses. The Company included a prepayments speed assumption of 9.42% at June 30, 2017. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation. Additionally, the weighted average credit loss rate used as an input to value the specific loans was 0.89% with credit loss rates ranging from 0%-3% at June 30, 2017.

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 June 30, 2017, the Company classified $27.3 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at June 30, 2017 was 9.81% with discount rates applied ranging from 9%-16%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. The fair value of MSRs was also estimated based on other assumptions including prepayment speeds and the cost to service. Prepayment speeds used as an input to value the MSRs at June 30, 2017 ranged from 0%-34% or a weighted average prepayment speed of 9.64%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $65 and $422, respectively, per loan. Prepayment speeds and the cost to service are both inversely related to the fair value of MSRs as an increase in prepayment speeds or the cost to service 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

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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.

At June 30, 2017, the Company classified $1.0 million of derivative assets related to interest rate locks as Level 3. The fair value of interest rate locks is based on prices obtained for loans with similar characteristics from third parties, adjusted for the pull-through rate, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund. The weighted-average pull-through rate at June 30, 2017 was 89.79% with pull-through rates applied ranging from 40% to 100%. Pull-through rates are directly related to the fair value of interest rate locks as an increase in the pull-through rate results in an increased valuation

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

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

	June 30, 2017
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	119,081	$	—	$	119,081	$	—
U.S. Government agencies	157,510		—		153,400		4,110
Municipal	124,120		—		46,779		77,341
Corporate notes	60,598		—		60,598		—
Mortgage-backed	1,153,290		—		1,153,290		—
Equity securities	35,037		—		35,037		—
Trading account securities	1,987		—		1,987		—
Mortgage loans held-for-sale	382,837		—		382,837		—
Loans held-for-investment	30,173		—		—		30,173
MSRs	27,307		—		—		27,307
Nonqualified deferred compensation assets	10,556		—		10,556		—
Derivative assets	49,703		—		48,656		1,047
Total	$	2,152,199	$	—	$	2,012,221	$	139,978
Derivative liabilities	$	37,651	$	—	$	37,651	$	—

	December 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	141,983	$	—	$	141,983	$	—
U.S. Government agencies	189,152		—		189,152		—
Municipal	131,809		—		52,183		79,626
Corporate notes	65,391		—		65,391		—
Mortgage-backed	1,161,084		—		1,161,084		—
Equity securities	35,248		—		35,248		—
Trading account securities	1,989		—		1,989		—
Mortgage loans held-for-sale	418,374		—		418,374		—
Loans held-for-investment	22,137		—		—		22,137
MSRs	19,103		—		—		19,103
Nonqualified deferred compensation assets	9,228		—		9,228		—
Derivative assets	56,394		—		54,103		2,291
Total	$	2,251,892	$	—	$	2,128,735	$	123,157
Derivative liabilities	$	39,839	$	—	$	39,839	$	—

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	June 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	122,330	$	—	$	122,330	$	—
U.S. Government agencies	69,916		—		69,916		—
Municipal	111,640		—		41,828		69,812
Corporate notes	69,690		—		69,690		—
Mortgage-backed	207,508		—		207,508		—
Equity securities	56,579		—		31,392		25,187
Trading account securities	3,613		—		3,613		—
Mortgage loans held-for-sale	554,256		—		554,256		—
Loans held-for-investment	16,294		—		16,294		—
MSRs	13,382		—		—		13,382
Nonqualified deferred compensation assets	9,076		—		9,076		—
Derivative assets	101,052		—		91,321		9,731
Total	$	1,335,336	$	—	$	1,217,224	$	118,112
Derivative liabilities	$	100,912	$	—	$	100,912	$	—

The aggregate remaining contractual principal balance outstanding as of June 30, 2017, December 31, 2016 and June 30, 2016 for mortgage loans held-for-sale measured at fair value under ASC 825 was $368.8 million, $414.4 million and $529.0 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $382.8 million, $418.4 million and $554.3 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 as of June 30, 2017, December 31, 2016 and June 30, 2016.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2017 and 2016 are summarized as follows:

				Equity securities		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2017	$	79,745		$	—	$	4,283		$	28,548		$	21,596	$	3,582
Total net gains (losses) included in:
Net income (1)	—			—		—			1,304			5,711		(2,535		)
Other comprehensive income (loss)	2,572			—		(173		)	—			—		—
Purchases	3,293			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(8,269		)	—		—			(2,159		)	—		—
Net transfers into/(out of) Level 3	—			—		—			2,480			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

(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		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2017	$	79,626		$	—	$	—		$	22,137		$	19,103	$	2,291
Total net gains (losses) included in:
Net income (1)	—			—		—			1,192			8,204		(1,244		)
Other comprehensive income (loss)	3,029			—		(173		)	—			—		—
Purchases	10,879			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(16,193		)	—		—			(5,491		)	—		—
Net transfers into/(out of) Level 3	—			—		4,283			12,335			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

				Equity securities		U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2016	$	70,242		$	24,054	$	—	$	—	$	10,128	$	9,917
Total net gains (losses) included in:
Net income (1)	—			—		—		—		3,254		(186		)
Other comprehensive income	113			1,133		—		—		—		—
Purchases	1,003			—		—		—		—		—
Issuances	—			—		—		—		—		—
Sales	—			—		—		—		—		—
Settlements	(1,546		)	—		—		—		—		—
Net transfers into/(out of) Level 3	—			—		—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187	$	—	$	—	$	13,382	$	9,731

				Equity securities			U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	—	$	—	$	9,092	$	7,021
Total net gains (losses) included in:
Net income (1)	—			—			—		—		4,290		2,710
Other comprehensive income (loss)	100			(12		)	—		—		—		—
Purchases	4,274			—			—		—		—		—
Issuances	—			—			—		—		—		—
Sales	—			—			—		—		—		—
Settlements	(3,175		)	—			—		—		—		—
Net transfers into/(out of) Level 3	—			—			—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187		$	—	$	—	$	13,382	$	9,731

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

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Also, the Company may be required, from time to time, to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets. For assets measured at fair value on a nonrecurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at June 30, 2017.

	June 30, 2017								Three Months Ended June 30, 2017 Fair Value Losses Recognized, net		Six Months Ended June 30, 2017 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	57,259	$	—	$	—	$	57,259	$	4,609	$	6,330
Other real estate owned, including covered other real estate owned (1)	42,617		—		—		42,617		265		1,270
Total	$	99,876	$	—	$	—	$	99,876	$	4,874	$	7,600

(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 June 30, 2017, the Company had $79.3 million of impaired loans classified as Level 3. Of the $79.3 million of impaired loans, $57.3 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $22.0 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 June 30, 2017, the Company had $42.6 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.

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The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at June 30, 2017 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	$	77,341	Bond pricing	Equivalent rating	BBB-AA+	N/A		Increase
U.S. Government agencies	4,110		Bond pricing	Equivalent rating	AAA	AAA		Increase
Loans held-for-investment	30,173		Discounted cash flows	Discount rate	3%-4%	3.70%		Decrease
				Credit loss rate	0%-3%	0.89%		Decrease
				Constant prepayment rate (CPR)	9.42%	9.42%		Decrease
MSRs	27,307		Discounted cash flows	Discount rate	9%-16%	9.81%		Decrease
				Constant prepayment rate (CPR)	0%-34%	9.64%		Decrease
				Cost of servicing	$65-$75	$	65	Decrease
				Cost of servicing - delinquent	$200-$1,000	$	422	Decrease
Derivatives	1,047		Discounted cash flows	Pull-through rate	40%-100%	89.79%		Increase
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	57,259	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%		Decrease
Other real estate owned, including covered other real estate owned	42,617		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 June 30, 2017				At December 31, 2016				At June 30, 2016
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	296,161	$	296,161	$	270,045	$	270,045	$	271,575	$	271,575
Interest bearing deposits with banks	1,011,635		1,011,635		980,457		980,457		693,269		693,269
Available-for-sale securities	1,649,636		1,649,636		1,724,667		1,724,667		637,663		637,663
Held-to-maturity securities	793,376		787,489		635,705		607,602		992,211		1,010,179
Trading account securities	1,987		1,987		1,989		1,989		3,613		3,613
FHLB and FRB stock, at cost	80,812		80,812		133,494		133,494		121,319		121,319
Brokerage customer receivables	23,281		23,281		25,181		25,181		26,866		26,866
Mortgage loans held-for-sale, at fair value	382,837		382,837		418,374		418,374		554,256		554,256
Loans held-for-investment, at fair value	30,173		30,173		22,137		22,137		16,294		16,294
Loans held-for-investment, at amortized cost	20,763,278		21,921,002		19,739,180		20,755,320		18,263,609		19,212,397
MSRs	27,307		27,307		19,103		19,103		13,382		13,382
Nonqualified deferred compensation assets	10,556		10,556		9,228		9,228		9,076		9,076
Derivative assets	49,703		49,703		56,394		56,394		101,052		101,052
Accrued interest receivable and other	215,291		215,291		204,513		204,513		198,017		198,017
Total financial assets	$	25,336,033	$	26,487,870	$	24,240,467	$	25,228,504	$	21,902,202	$	22,868,958
Financial Liabilities
Non-maturity deposits	$	18,086,300	$	18,086,300	$	17,383,729	$	17,383,729	$	15,958,500	$	15,958,500
Deposits with stated maturities	4,519,392		4,503,645		4,274,903		4,263,576		4,083,250		4,086,350
FHLB advances	318,270		316,799		153,831		157,051		588,055		597,568
Other borrowings	277,710		277,710		262,486		262,486		252,611		252,611
Subordinated notes	139,029		143,126		138,971		135,268		138,915		141,858
Junior subordinated debentures	253,566		253,330		253,566		254,384		253,566		254,143
Derivative liabilities	37,651		37,651		39,839		39,839		100,912		100,912
FDIC indemnification liability	15,375		15,375		16,701		16,701		11,729		11,729
Accrued interest payable	6,460		6,460		6,421		6,421		6,175		6,175
Total financial liabilities	$	23,653,753	$	23,640,396	$	22,530,447	$	22,519,455	$	21,393,713	$	21,409,846

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 held-for-investment, at amortized cost. 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

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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.

(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 are made pursuant to the 2015 Plan. As of June 30, 2017, approximately 4.0 million shares were available for future grants assuming the maximum number of shares are issued for the performance awards outstanding. 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 generally consist of a combination of time-vested non-qualified stock options, performance-based stock awards and performance-based 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 after 2014) 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 performance-based stock awards are entitled to receive, at no cost, the shares earned based on the achievement of the pre-established long-term goals.

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. Shares that are vested but not issuable pursuant to deferred compensation arrangements accrue additional shares based on

48

the value of dividends otherwise paid. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company.

Stock-based compensation is measured as the fair value of an award on the date of grant, and the measured cost is recognized over the period which the recipient is required to provide service in exchange for the award. The fair values of restricted share and performance-based stock awards are determined based on the average of the high and low trading prices on the grant date, and the fair value of stock options is estimated using a Black-Scholes option-pricing model that utilizes the assumptions outlined in the following table. Option-pricing models require the input of highly subjective assumptions and are sensitive to changes in the option's expected life and the price volatility of the underlying stock, which can materially affect the fair value estimate. Options granted since the inception of the LTIP in 2011 were primarily granted as LTIP awards. Expected life of options granted since the inception of the LTIP awards has been based on the safe harbor rule of the SEC Staff Accounting Bulletin No. 107 “Share-Based Payment” as the Company believes historical exercise data may not provide a reasonable basis to estimate the expected term of these options. Expected stock price volatility is based on historical volatility of the Company's common stock, which correlates with the expected life of the options, and the risk-free interest rate is based on comparable U.S. Treasury rates. Management reviews and adjusts the assumptions used to calculate the fair value of an option on a periodic basis to better reflect expected trends.

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month period ended June 30, 2016. No options were granted in the six month period ended June 30, 2017.

	Six Months Ended
	June 30,
	2016
Expected dividend yield	0.9	%
Expected volatility	25.2	%
Risk-free rate	1.3	%
Expected option life (in years)	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 $2.8 million in the second quarter of 2017 and $2.3 million in the second quarter of 2016, and $5.7 million and $4.8 million for the 2017 and 2016 year-to-date periods, respectively.

A summary of the Company's stock option activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2017	1,698,912		$	41.50
Granted	—		—
Exercised	(374,046	)	40.28
Forfeited or canceled	(8,173	)	42.49
Outstanding at June 30, 2017	1,316,693		$	41.84	4.4	$	45,561
Exercisable at June 30, 2017	765,711		$	41.56	3.7	$	26,707

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

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

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Stock 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	558,411		40.96
Exercised	(99,760	)	37.56
Forfeited or canceled	(84,750	)	49.03
Outstanding at June 30, 2016	1,925,635		$	41.07	4.9	$	19,159
Exercisable at June 30, 2016	896,155		$	39.08	3.6	$	10,695

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

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

The weighted average grant date fair value per share of options granted during the six months ended June 30, 2016 was $8.61. The aggregate intrinsic value of options exercised during the six months ended June 30, 2017 and 2016, was $11.9 million and $1.2 million, respectively. Cash received from option exercises under the Plan for the six months ended June 30, 2017 and 2016 were $15.1 million and $3.7 million, respectively.

A summary of the Plans' restricted share activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	133,425		$	49.94	137,593		$	49.63
Granted	13,385		72.36		14,546		43.95
Vested and issued	(10,104	)	45.55		(8,523	)	44.10
Forfeited or canceled	—		—		(504	)	44.26
Outstanding at June 30	136,706		$	52.46	143,112		$	49.40
Vested, but not issuable at June 30	89,391		$	51.55	88,696		$	51.43

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	298,180		$	43.64	276,533		$	43.01
Granted	143,439		72.55		117,409		40.95
Vested and issued	(68,712	)	46.85		(78,410	)	37.90
Forfeited	(8,438	)	49.47		(13,064	)	41.13
Outstanding at June 30	364,469		$	54.28	302,468		$	43.62
Vested, but deferred at June 30	13,590		$	42.60	6,646		$	37.89

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 $152.9 million.

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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 were payable quarterly in arrears at a rate of 5.00% per annum. The Series C Preferred Stock was convertible into common stock at the option of the holder subject to customary anti-dilution adjustments. Additionally, on and after April 15, 2017, the Company had 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 exceeded a certain amount. In 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. On April 25, 2017, 2,073 shares of the Series C Preferred Stock were converted at the option of the respective holder into 51,244 shares of the Company's common stock, pursuant to the terms of the Series C Preferred Stock. On April 27, 2017, the Company caused a mandatory conversion of its remaining 124,184 shares of Series C Preferred Stock into 3,069,828 shares of the Company's common stock at a conversion rate of 24.72 shares of common stock per share of Series C Preferred Stock. Cash was paid in lieu of fractional shares for an amount considered insignificant.

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 with a term of 10 years. The exercise price, subject to customary anti-dilution, was $22.68 at June 30, 2017. In February 2011, the U.S. Treasury sold all of its interest in the warrant issued to it in a secondary underwritten public offering. During the first six months of 2017290,545 warrant shares were exercised, which resulted in 199,210 shares of common stock issued. At June 30, 2017, all remaining holders of the interest in the warrant were able to exercise 51,307 warrant shares.

Other

At the January 2017 Board of Directors meeting, a quarterly cash dividend of $0.14 per share ($0.56 on an annualized basis) was declared. It was paid on February 23, 2017 to shareholders of record as of February 9, 2017. At the April 2017 Board of Directors meeting, a quarterly cash dividend of $0.14 per share ($0.56 on an annualized basis) was declared. It was paid on May 25, 2017 to shareholders of record as of May 11, 2017.

51

Accumulated Other Comprehensive Income (Loss)

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

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2017	$	(25,663	)	$	5,146		$	(39,307	)	$	(59,824	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	10,683			(600		)	2,833			12,916
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(29		)	413			—			384
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(13		)	—			—			(13		)
Net other comprehensive income (loss) during the period, net of tax	$	10,641		$	(187	)	$	2,833		$	13,287
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at January 1, 2017	$	(29,309	)	$	4,165		$	(40,184	)	$	(65,328	)
Other comprehensive income during the period, net of tax, before reclassifications	15,162			165			3,710			19,037
Amount reclassified from accumulated other comprehensive income into net income, net of tax	5			629			—			634
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	$	(880	)	$	—		$	—		$	(880	)
Net other comprehensive income during the period, net of tax	$	14,287		$	794		$	3,710		$	18,791
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at April 1, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	3,724			(822		)	612			3,514
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(875		)	505			—			(370		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,326			—			—			2,326
Net other comprehensive income (loss) during the period, net of tax	$	5,175		$	(317	)	$	612		$	5,470
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,912			(971		)	6,650			24,591
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(1,679		)	944			—			(735		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	4,412			—			—			4,412
Net other comprehensive income (loss) during the period, net of tax	$	21,645		$	(27	)	$	6,650		$	28,268
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)

52

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2017			2016			2017			2016
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	47		$	1,440		$	(8	)	$	2,765		Gains (losses) on investment securities, net
	47			1,440			(8		)	2,765			Income before taxes
Tax effect	$	(18	)	$	(565	)	$	3		$	(1,086	)	Income tax expense
Net of tax	$	29		$	875		$	(5	)	$	1,679		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	323		$	338		$	365		$	593		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	358			494			$	672		$	962		Interest on junior subordinated debentures
	(681		)	(832		)	(1,037		)	(1,555		)	Income before taxes
Tax effect	$	268		$	327		$	408		$	611		Income tax expense
Net of tax	$	(413	)	$	(505	)	$	(629	)	$	(944	)	Net income

53

Earnings per Share

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

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Net income		$	64,897	$	50,041	$	123,275	$	99,152
Less: Preferred stock dividends		2,050		3,628		5,678		7,256
Net income applicable to common shares—Basic	(A)	62,847		46,413		117,597		91,896
Add: Dividends on convertible preferred stock, if dilutive		—		1,578		1,578		3,156
Net income applicable to common shares—Diluted	(B)	62,847		47,991		119,175		95,052
Weighted average common shares outstanding	(C)	54,775		49,140		53,528		48,794
Effect of dilutive potential common shares
Common stock equivalents		927		856		994		778
Convertible preferred stock, if dilutive		885		3,109		1,987		3,109
Total dilutive potential common shares		1,812		3,965		2,981		3,887
Weighted average common shares and effect of dilutive potential common shares	(D)	56,587		53,105		56,509		52,681
Net income per common share:
Basic	(A/C)	$	1.15	$	0.94	$	2.20	$	1.88
Diluted	(B/D)	$	1.11	$	0.90	$	2.11	$	1.80

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 for a period, net income applicable to common shares is not adjusted by the associated preferred dividends.

54

ITEM 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of financial condition as of June 30, 2017 compared with December 31, 2016 and June 30, 2016, and the results of operations for the three and six month periods ended June 30, 2017 and 2016, 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 2016 Annual Report on Form 10-K. This discussion contains forward-looking statements that involve risks and uncertainties and, as such, future results could differ significantly from management’s current expectations. See the last section of this discussion for further information on forward-looking statements.

Introduction

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

Overview

Second Quarter Highlights

The Company recorded net income of $64.9 million for the second quarter of 2017 compared to $50.0 million in the second quarter of 2016. The results for the second quarter of 2017 demonstrate continued momentum on our operating strengths including strong loan and deposit growth, increased operating lease income and improving credit quality metrics. Combined with the continued loan growth, the improvement in net interest margin during the second quarter of 2017 resulted in higher net interest income in the current period. Additionally, the Company reduced its estimated FDIC indemnification liability by $4.9 million primarily as a result of an adjustment related to clawback provisions within certain loss-sharing agreements.

The Company increased its loan portfolio, excluding covered loans and mortgage loans held-for-sale, from $18.2 billion at June 30, 2016 and $19.7 billion at December 31, 2016 to $20.7 billion at June 30, 2017. The increase in the current quarter compared to the prior quarters was primarily a result of the Company’s growth in the commercial, commercial real estate and life insurance premium finance receivables portfolios. 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.

The Company recorded net interest income of $204.4 million in the second quarter of 2017 compared to $175.3 million in the second quarter of 2016. The higher level of net interest income recorded in the second quarter of 2017 compared to the second quarter of 2016 resulted primarily from a $2.4 billion increase in average loans, excluding covered loans, and a substantial improvement in the net interest margin. This was partially offset by an increase in interest-bearing liabilities (see "Net Interest Income" for further detail).

Non-interest income totaled $90.0 million in the second quarter of 2017 compared to $84.8 million in the second quarter of 2016. Increases from higher wealth management revenue, higher operating lease income, an increase in service charges on deposits and a reduction to the estimated FDIC indemnification liability were offset by lower fees from covered call options and lower gains on sales of investment securities (see “Non-Interest Income” for further detail).

Non-interest expense totaled $183.5 million in the second quarter of 2017, increasing $12.6 million, or 7%, compared to the second quarter of 2016. The increase compared to the second quarter of 2016 was primarily attributable to higher salary and employee benefit costs caused by the addition of employees from various acquisitions, and higher staffing levels as the Company grows, increased operating lease equipment depreciation, higher professional fees and an increase in data processing, marketing, and occupancy expenses (see “Non-Interest Expense” for further detail).

Management considers the maintenance of adequate liquidity to be important to the management of risk. During the second quarter of 2017, 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 June 30, 2017, the Company had approximately $1.3 billion in overnight liquid funds and interest-bearing deposits with banks.

55

RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures for the three and six months ended June 30, 2017, as compared to the same period last year, are shown below:

	Three months ended
(Dollars in thousands, except per share data)	June 30, 2017			June 30, 2016			Percentage (%) or Basis Point (bp) Change
Net income	$	64,897		$	50,041		30	%
Net income per common share—Diluted	1.11			0.90			23
Net revenue (1)	294,381			260,069			13
Net interest income	204,409			175,270			17
Net interest margin	3.41		%	3.24		%	17 bp
Net interest margin - fully taxable equivalent (non-GAAP) (2)	3.43		%	3.27		%	16
Net overhead ratio (3)	1.44		%	1.46		%	(2	)
Return on average assets	1.00			0.85			15
Return on average common equity	9.55			8.43			112
Return on average tangible common equity (non-GAAP) (2)	12.02			11.12			90

	Six months ended
(Dollars in thousands, except per share data)	June 30, 2017			June 30, 2016			Percentage (%) or Basis Point (bp) Change
Net income	$	123,275		$	99,152		24	%
Net income per common share—Diluted	2.11			1.80			17
Net revenue (1)	555,726			500,330			11
Net interest income	396,989			346,779			14
Net interest margin	3.38		%	3.26		%	12 bp
Net interest margin - fully taxable equivalent (non-GAAP) (2)	3.41		%	3.29		%	12
Net overhead ratio (3)	1.52			1.48			4
Return on average assets	0.97			0.85			12
Return on average common equity	9.24			8.49			75
Return on average tangible common equity (non-GAAP) (2)	11.74			11.22			52
At end of period
Total assets	$	26,929,265		$	24,420,616		10	%
Total loans, excluding loans held-for-sale, excluding covered loans	20,743,332			18,174,655			14
Total loans, including loans held-for-sale, excluding covered loans	21,126,169			18,728,911			13
Total deposits	22,605,692			20,041,750			13
Total shareholders’ equity	2,839,458			2,623,595			8
Book value per common share (2)	48.73			45.96			6
Tangible common book value per share (2)	39.40			36.12			9
Market price per common share	76.44			51.00			50
Excluding covered loans:
Allowance for credit losses to total loans (4)	0.63		%	0.64		%	(1) bp
Non-performing loans to total loans	0.33		%	0.48		%	(15	)

(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 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%.

56

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), taxable-equivalent net interest margin (including its individual components), the taxable-equivalent 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 Company's 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.

57

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

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars and shares in thousands)	2017			2016			2017			2016
Calculation of Net Interest Margin and Efficiency Ratio
(A) Interest Income (GAAP)	$	231,181		$	197,064		$	446,940		$	389,295
Taxable-equivalent adjustment:
- Loans	831			523			1,621			1,032
- Liquidity Management Assets	866			932			1,773			1,852
- Other Earning Assets	2			8			7			14
(B) Interest Income - FTE	$	232,880		$	198,527		$	450,341		$	392,193
(C) Interest Expense (GAAP)	26,772			21,794			49,951			42,516
(D) Net Interest Income - FTE (B minus C)	$	206,108		$	176,733		$	400,390		$	349,677
(E) Net Interest Income (GAAP) (A minus C)	$	204,409		$	175,270		$	396,989		$	346,779
Net interest margin (GAAP-derived)	3.41		%	3.24		%	3.38		%	3.26		%
Net interest margin - FTE	3.43		%	3.27		%	3.41		%	3.29		%
(F) Non-interest income	$	89,972		$	84,799		$	158,737		$	153,551
(G) Gains (losses) on investment securities, net	47			1,440			(8		)	2,765
(H) Non-interest expense	183,544			170,969			351,662			324,699
Efficiency ratio (H/(E+F-G))	62.36		%	66.11		%	63.28		%	65.26		%
Efficiency ratio - FTE (H/(D+F-G))	62.00		%	65.73		%	62.89		%	64.88		%
Calculation of Tangible Common Equity ratio (at period end)
Total shareholders’ equity	$	2,839,458		$	2,623,595
(I) Less: Convertible preferred stock	—			(126,257		)
Less: Non-convertible preferred stock	(125,000		)	(125,000		)
Less: Intangible assets	(519,806		)	(507,916		)
(J) Total tangible common shareholders’ equity	$	2,194,652		$	1,864,422
Total assets	$	26,929,265		$	24,420,616
Less: Intangible assets	(519,806		)	(507,916		)
(K) Total tangible assets	$	26,409,459		$	23,912,700
Tangible common equity ratio (J/K)	8.3		%	7.8		%
Tangible common equity ratio, assuming full conversion of convertible preferred stock ((J-I)/K)	8.3		%	8.3		%
Calculation of book value per share
Total shareholders’ equity	$	2,839,458		$	2,623,595
Less: Preferred stock	(125,000		)	(251,257		)
(L) Total common equity	$	2,714,458		$	2,372,338
(M) Actual common shares outstanding	55,700			51,619
Book value per common share (L/M)	$	48.73		$	45.96
Tangible common book value per share (J/M)	$	39.40		$	36.12

Calculation of return on average common equity
(N) Net income applicable to common shares	62,847		46,413		117,597		91,896
Add: After-tax intangible asset amortization	726		781		1,497		1,593
(O) Tangible net income applicable to common shares	63,573		47,194		119,094		93,489
Total average shareholders' equity	2,800,905		2,465,732		2,771,768		2,427,751
Less: Average preferred stock	(161,028	)	(251,257	)	(205,893	)	(251,259	)
(P) Total average common shareholders' equity	2,639,877		2,214,475		2,565,875		2,176,492
Less: Average intangible assets	(519,340	)	(507,439	)	(519,840	)	(501,516	)
(Q) Total average tangible common shareholders’ equity	2,120,537		1,707,036		2,046,035		1,674,976
Return on average common equity, annualized (N/P)	9.55	%	8.43	%	9.24	%	8.49	%
Return on average tangible common equity, annualized (O/Q)	12.02	%	11.12	%	11.74	%	11.22	%

58

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 2016 Form 10-K.

Net Income

Net income for the quarter ended June 30, 2017 totaled $64.9 million, an increase of $14.9 million, or 30%, compared to the second quarter of 2016. On a per share basis, net income for the second quarter of 2017 totaled $1.11 per diluted common share compared to $0.90 in the second quarter of 2016.

The most significant factors impacting net income for the second quarter of 2017 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 and an improvement in net interest margin, increased operating lease income, an increase in other income due to an adjustment in the estimated FDIC indemnification liability and an increase in wealth management revenue. These improvements were offset by a decrease in fees from covered call options, lower gains on investment securities and an increase in non-interest expense primarily attributable to higher salary and employee benefit costs caused by higher staffing levels as the Company grows, increased operating lease equipment depreciation and an increase in professional fees and marketing expenses.

59

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.

Quarter Ended June 30, 2017 compared to the Quarters Ended March 31, 2017 and June 30, 2016

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 second quarter of 2017 as compared to the first quarter of 2017 (sequential quarters) and second quarter of 2016 (linked quarters):

	Average Balance for three months ended,									Interest for three months ended,									Yield/Rate for three months ended,
(Dollars in thousands)	June 30, 2017			March 31, 2017			June 30, 2016			June 30, 2017			March 31, 2017			June 30, 2016			June 30, 2017		March 31, 2017		June 30, 2016
Interest-bearing deposits with banks and cash equivalents(1)	722,349			780,752			639,753			1,635			1,624			794			0.91	%	0.84	%	0.50	%
Investment securities	2,572,619			2,395,625			2,656,654			16,390			14,480			17,330			2.55		2.45		2.62
FHLB and FRB stock	99,438			94,090			116,706			1,153			1,070			1,112			4.66		4.61		3.83
Liquidity management assets(2)(7)	$	3,394,406		$	3,270,467		$	3,413,113		$	19,178		$	17,174		$	19,236		2.27	%	2.13	%	2.27	%
Other earning assets(2)(3)(7)	25,749			25,236			29,759			162			183			238			2.53		2.95		3.21
Loans, net of unearned income(2)(4)(7)	20,599,718			19,923,606			18,204,552			212,892			199,186			177,571			4.15		4.05		3.92
Covered loans	51,823			56,872			109,533			648			918			1,482			5.01		6.55		5.44
Total earning assets(7)	$	24,071,696		$	23,276,181		$	21,756,957		$	232,880		$	217,461		$	198,527		3.88	%	3.79	%	3.67	%
Allowance for loan and covered loan losses	(132,053		)	(127,425		)	(116,984		)
Cash and due from banks	242,495			229,588			272,935
Other assets	1,868,811			1,829,004			1,841,847
Total assets	$	26,050,949		$	25,207,348		$	23,754,755
Interest-bearing deposits	$	15,621,674		$	15,466,670		$	14,065,995		$	18,471		$	16,270		$	13,594		0.47	%	0.43	%	0.39	%
FHLB advances	689,600			181,338			946,081			2,933			1,590			2,984			1.71		3.55		1.27
Other borrowings	240,547			255,012			248,233			1,149			1,139			1,086			1.92		1.81		1.76
Subordinated notes	139,007			138,980			138,898			1,786			1,772			1,777			5.14		5.10		5.12
Junior subordinated notes	253,566			253,566			253,566			2,433			2,408			2,353			3.80		3.80		3.67
Total interest-bearing liabilities	$	16,944,394		$	16,295,566		$	15,652,773		$	26,772		$	23,179		$	21,794		0.63	%	0.58	%	0.56	%
Non-interest bearing deposits	5,904,679			5,787,034			5,223,384
Other liabilities	400,971			385,698			412,866
Equity	2,800,905			2,739,050			2,465,732
Total liabilities and shareholders’ equity	$	26,050,949		$	25,207,348		$	23,754,755
Interest rate spread(5)(7)																			3.25	%	3.21	%	3.11	%
Less: Fully tax-equivalent adjustment										(1,699		)	(1,702		)	(1,463		)	(0.02	)	(0.03	)	(0.03	)
Net free funds/contribution(6)	$	7,127,302		$	6,980,615		$	6,104,184											0.18		0.18		0.16
Net interest income/ margin(7) (GAAP)										$	204,409		$	192,580		$	175,270		3.41	%	3.36	%	3.24	%
Fully tax-equivalent adjustment										1,699			$	1,702		$	1,463		0.02		0.03		0.03
Net interest income/ margin - FTE (7)										$	206,108		$	194,282		$	176,733		3.43	%	3.39	%	3.27	%

(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 June 30, 2017, March 31, 2017 and June 30, 2016 were $1.7 million, $1.7 millionand $1.5 million respectively.

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

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

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

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

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

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For the second quarter of 2017, net interest income totaled $204.4 million, an increase of $11.8 million as compared to the first quarter of 2017 and an increase of $29.1 million as compared to the second quarter of 2016. Net interest margin was 3.41% (3.43% on a fully tax-equivalent basis) during the second quarter of 2017 compared to 3.36% (3.39% on a fully tax-equivalent basis) during the first quarter of 2017 and 3.24% (3.27% on a fully tax-equivalent basis) during the second quarter of 2016.

Six months endedJune 30, 2017 compared to six months endedJune 30, 2016

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 six months endedJune 30, 2017 compared to the six months endedJune 30, 2016:

	Average Balance for six months ended,						Interest for six months ended,						Yield/Rate for six months ended,
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016
Interest-bearing deposits with banks and cash equivalents(1)	751,389			605,724			3,259			1,541			0.87	%	0.51	%
Investment securities	2,484,611			2,638,911			30,870			35,440			2.51		2.70
FHLB and FRB stock	96,779			111,990			2,223			2,049			4.64		3.68
Liquidity management assets(1)(2)(7)	$	3,332,779		$	3,356,625		$	36,352		$	39,030		2.20	%	2.34	%
Other earning assets(2)(3)(7)	25,494			29,246			345			474			2.73		3.26
Loans, net of unearned income(2)(4)(7)	20,263,842			17,856,572			412,078			349,196			4.10		3.93
Covered loans	54,505			125,442			1,566			3,493			5.79		5.60
Total earning assets(7)	$	23,676,620		$	21,367,885		$	450,341		$	392,193		3.84	%	3.69	%
Allowance for loan and covered loan losses	(129,751		)	(114,506		)
Cash and due from banks	236,077			266,139
Other assets	1,849,058			1,809,316
Total assets	$	25,632,004		$	23,328,834
Interest-bearing deposits	$	15,544,603		$	13,891,664		$	34,741		$	26,375		0.45	%	0.38	%
FHLB advances	436,873			885,592			4,523			5,870			2.09		1.33
Other borrowings	247,740			252,809			2,288			2,144			1.86		1.71
Subordinated notes	138,994			138,884			3,558			3,554			5.12		5.12
Junior subordinated notes	253,566			255,626			4,841			4,573			3.80		3.54
Total interest-bearing liabilities	$	16,621,776		$	15,424,575		$	49,951		$	42,516		0.60	%	0.55	%
Non-interest bearing deposits	5,845,083			5,081,565
Other liabilities	393,377			394,943
Equity	2,771,768			2,427,751
Total liabilities and shareholders’ equity	$	25,632,004		$	23,328,834
Interest rate spread(5)(7)													3.24	%	3.14	%
Less: Fully tax-equivalent adjustment							(3,401		)	(2,898		)	(0.03	)	(0.03	)
Net free funds/contribution(6)	$	7,054,844		$	5,943,310								0.17		0.15
Net interest income/ margin(7) (GAAP)							$	396,989		$	346,779		3.38	%	3.26	%
Fully tax-equivalent adjustment							3,401			2,898			0.03		0.03
Net interest income/ margin - FTE (7)							$	400,390		$	349,677		3.41	%	3.29	%

(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 June 30, 2017 and June 30, 2016 were $3.4 million and $2.9 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 six months of 2017 net interest income totaled $397.0 million, an increase of $50.2 million as compared to the first six month of 2016. Net interest margin was 3.38% (3.41% on a fully tax-equivalent basis) for the first six months of 2017 compared to 3.26% (3.29% on a fully tax-equivalent basis) for the first six months of 2016.

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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 June 30, 2017 to March 31, 2017 and June 30, 2016 and the six month periods ended June 30, 2017 and June 30, 2016. 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:

	Second Quarter of 2017 Compared to First Quarter of 2017		Second Quarter of 2017 Compared to Second Quarter of 2016		First Six Months of 2017 Compared to First Six Months of 2016
(Dollars in thousands)
Net interest income (GAAP) for comparative period	$	192,580	$	175,270	$	346,779
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)	4,149		23,878		50,542
Change due to interest rate fluctuations (rate)	5,564		5,261		1,584
Change due to number of days in each period	2,116		—		(1,916		)
Net interest income (GAAP) for the period ended June 30, 2017	$	204,409	$	204,409	$	396,989
Fully tax-equivalent adjustment	1,699		1,699		3,401
Net interest income - FTE	$	206,108	$	206,108	$	400,390

Non-interest Income

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

	Three Months Ended						$ Change			% Change
(Dollars in thousands)	June 30, 2017			June 30, 2016
Brokerage	$	5,449		$	6,302		$	(853	)	(14	)%
Trust and asset management	14,456			12,550			1,906			15
Total wealth management	19,905			18,852			1,053			6
Mortgage banking	35,939			36,807			(868		)	(2	)
Service charges on deposit accounts	8,696			7,726			970			13
Gains (losses) on investment securities, net	47			1,440			(1,393		)	(97	)
Fees from covered call options	890			4,649			(3,759		)	(81	)
Trading losses, net	(420		)	(316		)	(104		)	33
Operating lease income, net	6,805			4,005			2,800			70
Other:
Interest rate swap fees	2,221			1,835			386			21
BOLI	888			1,257			(369		)	(29	)
Administrative services	986			1,074			(88		)	(8	)
Gain on extinguishment of debt	—			—			—			NM
Early pay-offs of leases	10			—			10			NM
Miscellaneous	14,005			7,470			6,535			87
Total Other	18,110			11,636			6,474			56
Total Non-Interest Income	$	89,972		$	84,799		$	5,173		6	%

62

	Six Months Ended						$ Change			% Change
(Dollars in thousands)	June 30, 2017			June 30, 2016
Brokerage	$	11,669		$	12,359		$	(690	)	(6	)%
Trust and asset management	28,384			24,813			3,571			14
Total wealth management	40,053			37,172			2,881			8
Mortgage banking	57,877			58,542			(665		)	(1	)
Service charges on deposit accounts	16,961			15,132			1,829			12
(Losses) gains on investment securities, net	(8		)	2,765			(2,773		)	NM
Fees from covered call options	1,649			6,361			(4,712		)	(74	)
Trading losses, net	(740		)	(484		)	(256		)	53
Operating lease income, net	12,587			6,811			5,776			85
Other:
Interest rate swap fees	3,654			6,273			(2,619		)	(42	)
BOLI	1,873			1,729			144			8
Administrative services	2,010			2,143			(133		)	(6	)
Gain on extinguishment of debt	—			4,305			(4,305		)	NM
Early pay-offs of leases	1,221			—			1,221			NM
Miscellaneous	21,600			12,802			8,798			69
Total Other	30,358			27,252			3,106			11
Total Non-Interest Income	$	158,737		$	153,551		$	5,186		3	%

NM - Not Meaningful

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

The increase in wealth management revenue during the current period as compared to the second quarter of 2016 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 WHI.

The decrease in mortgage banking revenue in the current quarter as compared to the same period of 2016 resulted primarily from lower origination volumes in the current quarter. Mortgage loans originated or purchased for sale decreased during the current quarter, totaling $1.1 billion in the second quarter of 2017 as compared to $1.2 billion in the second quarter of 2016. 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 mortgage servicing rights ("MSRs") as the Company does not hedge this change in fair value. The Company originates mortgage loans held-for-sale with associated MSRs either retained or released. The Company records MSRs at fair value on a recurring basis. The table below presents additional selected information regarding mortgage banking revenue for the respective periods.

63

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

	Three months ended						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Retail originations	$	963,396		$	1,135,082		$	1,588,367		$	1,840,072
Correspondent originations	170,862			77,160			268,358			108,818
Total originations (A)	$	1,134,258		$	1,212,242		$	1,856,725		$	1,948,890
Purchases as a percentage of originations	84		%	65		%	77		%	62		%
Refinances as a percentage of originations	16			35			23			38
Total	100		%	100		%	100		%	100		%
Production revenue (1) (B)	$	28,140		$	32,221		$	45,817		$	52,151
Production margin (B/A)	2.48		%	2.66		%	2.47		%	2.68		%
Loans serviced for others (C)	$	2,303,435		$	1,250,062
MSRs, at fair value (D)	27,307			13,382
Percentage of MSRs to loans serviced for others (D/C)	1.19		%	1.07		%

(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 decrease in net gains on investment securities in the current quarter primarily relates to the realized gains on sales and calls of certain securities that were held in the Company's investment securities portfolio in the second quarter of 2016.

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 2016 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 June 30, 2017 and June 30, 2016.

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 second quarter of 2017 as compared to the same period of 2016 is primarily due to a reduction in the estimated FDIC indemnification liability of $4.9 million in the second quarter of 2017 and 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.

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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)	June 30, 2017		June 30, 2016
Salaries and employee benefits:
Salaries	$	55,215	$	52,924	$	2,291		4	%
Commissions and incentive compensation	34,050		32,531		1,519			5
Benefits	17,237		15,439		1,798			12
Total salaries and employee benefits	106,502		100,894		5,608			6
Equipment	9,909		9,307		602			6
Operating lease equipment depreciation	5,662		3,385		2,277			67
Occupancy, net	12,586		11,943		643			5
Data processing	7,804		7,138		666			9
Advertising and marketing	8,726		6,941		1,785			26
Professional fees	7,510		5,419		2,091			39
Amortization of other intangible assets	1,141		1,248		(107		)	(9	)
FDIC insurance	3,874		4,040		(166		)	(4	)
OREO expense, net	739		1,348		(609		)	(45	)
Other:
Commissions—3rd party brokers	1,033		1,324		(291		)	(22	)
Postage	2,080		2,038		42			2
Miscellaneous	15,978		15,944		34			—
Total other	19,091		19,306		(215		)	(1	)
Total Non-Interest Expense	$	183,544	$	170,969	$	12,575		7	%

	Six months ended				$ Change			% Change
(Dollars in thousands)	June 30, 2017		June 30, 2016
Salaries and employee benefits:
Salaries	$	110,223	$	103,206	$	7,017		7	%
Commissions and incentive compensation	60,693		58,906		1,787			3
Benefits	34,902		34,593		309			1
Total salaries and employee benefits	205,818		196,705		9,113			5
Equipment	18,911		18,074		837			5
Operating lease equipment depreciation	10,298		5,435		4,863			89
Occupancy, net	25,687		23,891		1,796			8
Data processing	15,729		13,657		2,072			15
Advertising and marketing	13,876		10,720		3,156			29
Professional fees	12,170		9,478		2,692			28
Amortization of other intangible assets	2,305		2,546		(241		)	(9	)
FDIC insurance	8,030		7,653		377			5
OREO expense, net	2,404		1,908		496			26
Other:
Commissions—3rd party brokers	2,131		2,634		(503		)	(19	)
Postage	3,522		3,340		182			5
Miscellaneous	30,781		28,658		2,123			7
Total other	36,434		34,632		1,802			5
Total Non-Interest Expense	$	351,662	$	324,699	$	26,963		8	%

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

Salaries and employee benefits expense increased in the current period compared to the same period of 2016 primarily as a result of the addition of employees from acquisitions, increased staffing as the Company grows, higher employee benefits and higher incentive compensation on variable pay based arrangements.

Operating lease equipment depreciation increased in the current quarter compared to the same period of 2016 as a result of growth in business from the Company's leasing divisions.

65

The increase in advertising and marketing expenses during the current quarter compared to the same period of 2016 is primarily related to the higher expenses for community advertisements and sponsorships. Marketing costs are incurred to promote the Company's brand, commercial banking capabilities, the Company's various products, to attract loans and deposits and to announce new branch openings as well as the expansion of the Company's non-bank businesses. The level of marketing expenditures depends on the timing of sponsorship programs and type of marketing programs utilized which are determined based on the market area, targeted audience, competition and various other factors.

The increase in professional fees during the current quarter compared to the second quarter of 2016 is primarily related to consulting fees. Professional fees include legal, audit and tax fees, external loan review costs, consulting arrangements and normal regulatory exam assessments.

Income Taxes

The Company recorded income tax expense of $37.0 million for the three months ended June 30, 2017, compared to $29.9 million for same period of 2016. Income tax expense was $66.7 million and $59.3 million for the six months ended June 30, 2017 and 2016, respectively. The effective tax rates were 36.3% and 37.4% for the second quarters of 2017 and 2016, respectively, and 35.1% and 37.4% for the 2017 and 2016 year-to-date periods, respectively. The lower effective tax rate in the first six months of 2017 was primarily a result of recording $3.9 million of excess tax benefits during the period related to the adoption of new accounting rules related to income taxes attributed to share-based compensation that became effective on January 1, 2017. These excess tax benefits are expected to be higher in the first quarter of fiscal years when the majority of the Company's share-based awards vest, and will fluctuate throughout the remainder of the year based on the Company's stock price and timing of employee stock option exercises and vesting of other share-based awards.

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 June 30, 2017 totaled $166.3 million as compared to $142.3 million for the same period in 2016, an increase of $24.1 million, or 17%. On a year-to-date basis, net interest income for the segment increased by $38.7 million from $283.9 million for the first six months of 2016 to $322.6 million for the first six months of 2017. The increase in both the three and six month periods is primarily attributable to growth in earning assets and higher net interest margin. The community banking segment’s non-interest income totaled $65.0 million in the second quarter of 2017, an increase of $4.2 million, or 7%, when compared to the second quarter of 2016 total of $60.8 million. On a year-to-date basis, non-interest income totaled $107.7 million for the first six months of 2017, an increase of $1.2 million, or 1%, compared to $106.5 million in the six months ended June 30, 2016. The increase in non-interest income in the quarter and year-to-date periods was primarily attributable to increase in service charges on deposits and an adjustment to the estimated FDIC indemnification liability. The community banking segment’s net income for the quarter ended June 30, 2017 totaled $46.0 million, an increase of $11.5 million as compared to net income in the second quarter of 2016 of $34.6 million. On a year-to-date basis, the community banking segment's net income was $83.7 million for the first six months of 2017 as compared to $69.3 million for the first six months of 2016.

The specialty finance segment's net interest income totaled $28.6 million for the quarter ended June 30, 2017, compared to $24.4 million for the same period in 2016, an increase of $4.2 million, or 17%. On a year-to-date basis, net interest income increased by $9.8 million in the first six months of 2017 as compared to the first six months of 2016. The increase during both periods is primarily attributable to growth in earning assets. The specialty finance segment’s non-interest income totaled $13.7 million and $12.5 million for the three month periods ended June 30, 2017 and 2016, respectively. On a year-to-date basis, non-interest income increased by $3.0 million in the first six months of 2017 as compared to the first six months of 2016. 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

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35%, 42%, 17% and 6%, respectively, of the total revenues of our specialty finance business for the six month period ended June 30, 2017. The net income of the specialty finance segment for the quarter ended June 30, 2017 totaled $14.8 million as compared to $12.0 million for the quarter ended June 30, 2016. On a year-to-date basis, the net income of the specialty finance segment for the six months ended June 30, 2017 totaled $30.9 million as compared to $23.5 million for the six months ended June 30, 2016.

The wealth management segment reported net interest income of $4.9 million for the second quarter of 2017 compared to $4.4 million in the same quarter of 2016. On a year-to-date basis, net interest income totaled $10.0 million for the first six months of 2017 as compared to $8.9 million for the first six months of 2016. Net interest income for this segment is primarily comprised of an allocation of the net interest income earned by the community banking segment on non-interest bearing and interest-bearing wealth management customer account balances on deposit at the banks. Wealth management customer account balances on deposit at the banks averaged $1.1 billion and $958.9 million in the first six months of 2017 and 2016, respectively. This segment recorded non-interest income of $20.6 million for the second quarter of 2017 compared to $19.9 million for the second quarter of 2016. On a year-to-date basis, the wealth management segment's non-interest income totaled $41.4 million during the first six months of 2017 as compared to $38.6 million in the first six months of 2016. 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 $4.0 million for the second quarter of 2017 compared to $3.4 million for the second quarter of 2016. On a year-to-date basis, the wealth management segment's net income totaled $8.6 million and $6.3 million for the six month periods ended June 30, 2017 and 2016, respectively.

Financial Condition

Total assets were $26.9 billion at June 30, 2017, representing an increase of $2.5 billion, or 10%, when compared to June 30, 2016 and an increase of approximately $1.2 billion, or 18% on an annualized basis, when compared to March 31, 2017. Total funding, which includes deposits, all notes and advances, including secured borrowings and the junior subordinated debentures, was $23.6 billion at June 30, 2017, $22.6 billion at March 31, 2017, and $21.3 billion at June 30, 2016. 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.

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Interest-Earning Assets

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

	Three Months Ended
	June 30, 2017				March 31, 2017				June 30, 2016
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Loans:
Commercial	$	6,184,352	26	%	$	5,931,606	25	%	$	5,030,253	22	%
Commercial real estate	6,324,735		26		6,191,202		27		5,811,650		27
Home equity	698,112		3		719,525		3		771,992		4
Residential real estate (1)	1,079,339		4		988,121		4		1,024,441		5
Premium finance receivables	6,186,230		26		5,971,554		26		5,433,006		25
Other loans	126,950		1		121,598		1		133,210		1
Total loans, net of unearned income excluding covered loans (2)	$	20,599,718	86	%	$	19,923,606	86	%	$	18,204,552	84	%
Covered loans	51,823		—		56,872		—		109,533		1
Total average loans (2)	$	20,651,541	86	%	$	19,980,478	86	%	$	18,314,085	85	%
Liquidity management assets (3)	$	3,394,406	14	%	$	3,270,467	14	%	3,413,113		15	%
Other earning assets (4)	25,749		—		25,236		—		29,759		—
Total average earning assets	$	24,071,696	100	%	$	23,276,181	100	%	$	21,756,957	100	%
Total average assets	$	26,050,949			$	25,207,348			$	23,754,755
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 $20.7 billion in the second quarter of 2017, increasing $2.3 billion, or 13%, from the second quarter of 2016 and $671.1 million, or 13% on an annualized basis, from the first quarter of 2017. Combined, the commercial and commercial real estate loan categories comprised 61% and 59% of the average loan portfolio in the second quarter of 2017 and 2016, respectively. Growth realized in these categories for the second quarter of 2017 as compared to the sequential and prior year periods is primarily attributable to increased business development efforts.

Home equity loan portfolio averaged $698.1 million in the second quarter of 2017, and decreased $73.9 million, or 10% from the average balance of $772.0 million in same period of 2016. 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 $1.1 billion in the second quarter of 2017, and increased $54.9 million, or 5% from the average balance of $1.0 billion in same period of 2016. Additionally, compared to the quarter ended March 31, 2017, the average balance increased $91.2 million, or 37% 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 $6.2 billion in the second quarter of 2017, and accounted for 30% of the Company’s average total loans. The increase during the second quarter of 2017 compared to both the first quarter of 2017 and the second quarter of 2016 was the result of continued originations within the portfolio due to the effective marketing and customer servicing. Approximately $1.9 billion of premium finance receivables were originated in the second quarter of 2017 compared to $1.8 billion during the same period of 2016. Premium finance receivables consist of a commercial portfolio and a life portfolio comprising approximately 41% and 59%, respectively, of the average total balance of premium finance receivables for the second quarter of 2017, and 44% and 56%, respectively, for the second quarter of 2016.

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

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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.

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:

	Six Months Ended
	June 30, 2017				June 30, 2016
(Dollars in thousands)	Balance		Percent		Balance		Percent
Loans:
Commercial	$	6,058,871	26	%	$	4,858,912	23	%
Commercial real estate	6,258,445		26		5,720,238		27
Home equity	708,760		3		775,748		4
Residential real estate (1)	1,033,992		4		969,145		4
Premium finance receivables	6,079,485		26		5,396,920		25
Other loans	124,289		1		135,609		1
Total loans, net of unearned income excluding covered loans (2)	$	20,263,842	86	%	$	17,856,572	84	%
Covered loans	54,505		—		125,442		1
Total average loans (2)	$	20,318,347	86	%	$	17,982,014	85	%
Liquidity management assets (3)	$	3,332,779	14	%	$	3,356,625	15	%
Other earning assets (4)	25,494		—		29,246		—
Total average earning assets	$	23,676,620	100	%	$	21,367,885	100	%
Total average assets	$	25,632,004			$	23,328,834
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

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Total average loans for the first six months of 2017 increased $2.3 billion or 13% over the previous year period. Similar to the quarterly discussion above, approximately $1.2 billion of this increase relates to the commercial portfolio, $538.2 million of this increase relates to the commercial real estate portfolio and $682.6 million of this increase relates to the premium finance receivables portfolio.

LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio

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

	June 30, 2017				December 31, 2016				June 30, 2016
			% of				% of				% of
(Dollars in thousands)	Amount		Total		Amount		Total		Amount		Total
Commercial	$	6,406,289	31	%	$	6,005,422	30	%	$	5,144,533	28	%
Commercial real estate	6,402,494		31		6,196,087		31		5,848,334		31
Home equity	689,483		3		725,793		4		760,904		4
Residential real estate	762,810		3		705,221		4		653,664		4
Premium finance receivables—commercial	2,648,386		13		2,478,581		12		2,478,280		14
Premium finance receivables—life insurance	3,719,043		18		3,470,027		18		3,161,562		17
Consumer and other	114,827		1		122,041		1		127,378		1
Total loans, net of unearned income, excluding covered loans	$	20,743,332	100	%	$	19,703,172	100	%	$	18,174,655	99	%
Covered loans	50,119		—		58,145		—		105,248		1
Total loans	$	20,793,451	100	%	$	19,761,317	100	%	$	18,279,903	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 June 30, 2017 and 2016:

	As of June 30, 2017						As of June 30, 2016
					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	$	4,094,532	32.0	%	$	35,542	$	3,456,575	31.3	%	$	28,133
Franchise	838,394		6.5		5,305		289,905		2.6		3,337
Mortgage warehouse lines of credit	234,643		1.8		1,719		270,586		2.5		1,976
Asset-based lending	871,906		6.8		8,004		842,667		7.7		6,735
Leases	356,604		2.8		1,150		268,074		2.4		807
PCI - commercial loans (1)	10,210		0.1		638		16,726		0.2		666
Total commercial	$	6,406,289	50.0	%	$	52,358	$	5,144,533	46.7	%	$	41,654
Commercial Real Estate:
Construction	$	709,587	5.5	%	$	9,187	$	404,905	3.7	%	$	4,322
Land	112,153		0.9		3,596		105,881		1.0		3,455
Office	887,684		6.9		5,740		909,453		8.3		6,099
Industrial	792,791		6.2		5,201		766,769		7.0		6,443
Retail	920,494		7.2		5,971		897,846		8.2		6,060
Multi-family	814,598		6.4		8,226		778,517		7.1		7,746
Mixed use and other	2,018,950		15.8		14,299		1,812,665		16.5		12,662
PCI - commercial real estate (1)	146,237		1.1		119		172,298		1.5		37
Total commercial real estate	$	6,402,494	50.0	%	$	52,339	$	5,848,334	53.3	%	$	46,824
Total commercial and commercial real estate	$	12,808,783	100.0	%	$	104,697	$	10,992,867	100.0	%	$	88,478
Commercial real estate - collateral location by state:
Illinois	$	4,988,746	77.9	%			$	4,622,897	79.1	%
Wisconsin	689,007		10.8				597,531		10.2
Total primary markets	$	5,677,753	88.7	%			$	5,220,428	89.3	%
Indiana	142,137		2.2				125,210		2.1
Florida	105,897		1.7				77,829		1.3
Arizona	57,219		0.9				43,409		0.7
Ohio	46,652		0.7				18,923		0.3
Michigan	45,541		0.7				34,825		0.6
California	38,626		0.6				62,920		1.1
Other	288,669		4.5				264,790		4.6
Total	$	6,402,494	100.0	%			$	5,848,334	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

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portfolio, our allowance for loan losses in our commercial loan portfolio is $52.4 million as of June 30, 2017 compared to $41.7 million as of June 30, 2016.

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, 88.7% of our commercial real estate loan portfolio is located in this region as of June 30, 2017. 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 June 30, 2017, our allowance for loan losses related to this portfolio is $52.3 million compared to $46.8 million as of June 30, 2016.

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. Mortgage warehouse lines decreased to $234.6 million as of June 30, 2017 from $270.6 million as of June 30, 2016.

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 June 30, 2017, our residential loan portfolio totaled $762.8 million, or 3% of our total outstanding loans.

Our adjustable rate mortgages relate to properties located principally in the Chicago metropolitan area and southern Wisconsin or vacation homes owned by local residents. These adjustable rate mortgages are often non-agency conforming. Adjustable rate mortgage loans decrease the interest rate risk we face on our mortgage portfolio. However, this risk is not eliminated due to the fact that such loans generally provide for periodic and lifetime limits on the interest rate adjustments among other features. Additionally, adjustable rate mortgages may pose a higher risk of delinquency and default because they require borrowers to make larger payments when interest rates rise. As of June 30, 2017, $14.3 million of our residential real estate mortgages, or 1.9% of our residential real estate loan portfolio were classified as nonaccrual, $775,000 were 90 or more days past due and still accruing (0.1%), $1.6 million were 30 to 89 days past due (0.2%) and $746.2 million were current (97.8%). We believe that since our loan portfolio consists primarily of locally originated loans, and since the majority of our borrowers are longer-term customers with lower LTV ratios, we face a relatively low risk of borrower default and delinquency.

While we generally do not originate loans for our own portfolio with long-term fixed rates due to interest rate risk considerations, we can accommodate customer requests for fixed rate loans by originating such loans and then selling them into the secondary market, for which we receive fee income. We may also selectively retain certain of these loans within the banks’ own portfolios where they are non-agency conforming, or where the terms of the loans make them favorable to retain. A portion of the loans we sold into the secondary market were sold with the servicing of those loans retained. The amount of loans serviced for others as of June 30, 2017 and 2016 was $2.3 billion and $1.3 billion, respectively. All other mortgage loans sold into the secondary market were sold without the retention of servicing rights.

It is not our current practice to underwrite, and we have no plans to underwrite, subprime, Alt A, no or little documentation loans, or option ARM loans. As of June 30, 2017, approximately $1.8 million of our mortgage loans consist of interest-only loans.

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Premium finance receivables – commercial. FIFC and FIFC Canada originated approximately $1.6 billion in commercial insurance premium finance receivables in the second quarter of 2017 as compared to $1.5 billion of originations in the second quarter of 2016. During the six months ended June 30, 2017 and 2016, FIFC and FIFC Canada originated approximately $3.1 billion and $2.9 billion, respectively, in commercial insurance premium finance receivables. FIFC and FIFC Canada make loans to businesses to finance the insurance premiums they pay on their commercial insurance policies. The loans are originated by working through independent medium and large insurance agents and brokers located throughout the United States and Canada. The insurance premiums financed are primarily for commercial customers’ purchases of liability, property and casualty and other commercial insurance.

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

Premium finance receivables—life insurance. FIFC originated approximately $243.4 million in life insurance premium finance receivables in the second quarter of 2017 as compared to$270.9 million of originations in the second quarter of 2016. During the six months ended June 30, 2017 and 2016, FIFC originated approximately $447.2 million and $480.6 million, respectively, in life insurance premium finance receivables. The Company continues to experience increased competition and pricing pressure within the current market. These loans are originated directly with the borrowers with assistance from life insurance carriers, independent insurance agents, financial advisors and legal counsel. The life insurance policy is the primary form of collateral. In addition, these loans often are secured with a letter of credit, marketable securities or certificates of deposit. In some cases, FIFC may make a loan that has a partially unsecured position.

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

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

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 loan portfolio, excluding covered loans, at June 30, 2017 by date at which the loans reprice or mature, and the type of rate exposure:

As of June 30, 2017	One year or less		From one to five years		Over five years
(Dollars in thousands)							Total
Commercial
Fixed rate	$	155,364	$	703,707	$	470,295	$	1,329,366
Variable rate	5,067,733		7,288		1,902		5,076,923
Total commercial	$	5,223,097	$	710,995	$	472,197	$	6,406,289
Commercial real estate
Fixed rate	404,454		1,735,009		252,118		2,391,581
Variable rate	3,978,265		31,068		1,580		4,010,913
Total commercial real estate	$	4,382,719	$	1,766,077	$	253,698	$	6,402,494
Home Equity
Fixed rate	5,962		4,657		63,208		73,827
Variable rate	611,581		4,075		—		615,656
Total home equity	$	617,543	$	8,732	$	63,208	$	689,483
Residential real estate
Fixed rate	40,593		38,946		145,978		225,517
Variable rate	54,493		180,457		302,343		537,293
Total residential real estate	$	95,086	$	219,403	$	448,321	$	762,810
Premium finance receivables - commercial
Fixed rate	2,560,924		87,462		—		2,648,386
Variable rate	—		—		—		—
Total premium finance receivables - commercial	$	2,560,924	$	87,462	$	—	$	2,648,386
Premium finance receivables - life insurance
Fixed rate	17,174		34,370		1,370		52,914
Variable rate	3,666,129		—		—		3,666,129
Total premium finance receivables - life insurance	$	3,683,303	$	34,370	$	1,370	$	3,719,043
Consumer and other
Fixed rate	54,315		13,124		3,536		70,975
Variable rate	43,852		—		—		43,852
Total consumer and other	$	98,167	$	13,124	$	3,536	$	114,827
Total per category
Fixed rate	3,238,786		2,617,275		936,505		6,792,566
Variable rate	13,422,053		222,888		305,825		13,950,766
Total loans, net of unearned income, excluding covered loans	$	16,660,839	$	2,840,163	$	1,242,330	$	20,743,332
Variable Rate Loan Pricing by Index:
Prime	$	2,957,739
One- month LIBOR	6,514,657
Three- month LIBOR	500,408
Twelve- month LIBOR	3,525,934
Other	452,028
Total variable rate	$	13,950,766

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Past Due Loans and Non-Performing Assets

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

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

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

75

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)	June 30, 2017			March 31, 2017			December 31, 2016			June 30, 2016
Loans past due greater than 90 days and still accruing (1):
Commercial	$	—		$	100		$	174		$	235
Commercial real estate	—			—			—			—
Home equity	—			—			—			—
Residential real estate	179			—			—			—
Premium finance receivables—commercial	5,922			4,991			7,962			10,558
Premium finance receivables—life insurance	1,046			2,024			3,717			—
Consumer and other	63			104			144			163
Total loans past due greater than 90 days and still accruing	7,210			7,219			11,997			10,956
Non-accrual loans (2):
Commercial	10,191			14,307			15,875			16,801
Commercial real estate	16,980			20,809			21,924			24,415
Home equity	9,482			11,722			9,761			8,562
Residential real estate	14,292			11,943			12,749			12,413
Premium finance receivables—commercial	10,456			12,629			14,709			14,497
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	439			350			439			475
Total non-accrual loans	61,840			71,760			75,457			77,163
Total non-performing loans:
Commercial	10,191			14,407			16,049			17,036
Commercial real estate	16,980			20,809			21,924			24,415
Home equity	9,482			11,722			9,761			8,562
Residential real estate	14,471			11,943			12,749			12,413
Premium finance receivables—commercial	16,378			17,620			22,671			25,055
Premium finance receivables—life insurance	1,046			2,024			3,717			—
Consumer and other	502			454			583			638
Total non-performing loans	$	69,050		$	78,979		$	87,454		$	88,119
Other real estate owned	16,853			17,090			17,699			22,154
Other real estate owned—from acquisitions	22,508			22,774			22,583			15,909
Other repossessed assets	532			544			581			420
Total non-performing assets	$	108,943		$	119,387		$	128,317		$	126,602
TDRs performing under the contractual terms of the loan agreement	28,008			28,392			29,911			33,310
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial	0.16		%	0.24		%	0.27		%	0.33		%
Commercial real estate	0.27			0.33			0.35			0.42
Home equity	1.38			1.66			1.34			1.13
Residential real estate	1.90			1.66			1.81			1.90
Premium finance receivables—commercial	0.62			0.72			0.91			1.01
Premium finance receivables—life insurance	0.03			0.06			0.11			—
Consumer and other	0.44			0.38			0.48			0.50
Total non-performing loans	0.33		%	0.40		%	0.44		%	0.48		%
Total non-performing assets, as a percentage of total assets	0.40		%	0.46		%	0.50		%	0.52		%
Allowance for loan losses as a percentage of total non-performing loans	187.68		%	159.31		%	139.83		%	129.78		%

(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 $5.1 million, $11.3 million, $11.8 million and $16.3 million as of June 30, 2017, March 31, 2017, December 31, 2016 and June 30, 2016 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 June 30, 2017 and March 31, 2017:

	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
As of June 30, 2017
(Dollars in thousands)
Loan Balances:
Commercial
Commercial, industrial and other	$	8,720	$	—	$	5,917	$	12,658	$	4,067,237	$	4,094,532
Franchise	—		—		—		—		838,394		838,394
Mortgage warehouse lines of credit	—		—		—		2,361		232,282		234,643
Asset-based lending	936		—		983		7,293		862,694		871,906
Leases	535		—		—		60		356,009		356,604
PCI - commercial (1)	—		1,572		162		—		8,476		10,210
Total commercial	10,191		1,572		7,062		22,372		6,365,092		6,406,289
Commercial real estate
Construction	2,408		—		—		—		707,179		709,587
Land	202		—		—		6,455		105,496		112,153
Office	4,806		—		607		7,725		874,546		887,684
Industrial	2,193		—		—		709		789,889		792,791
Retail	1,635		—		—		15,081		903,778		920,494
Multi-family	354		—		—		1,186		813,058		814,598
Mixed use and other	5,382		—		713		7,590		2,005,265		2,018,950
PCI - commercial real estate (1)	—		8,768		322		3,303		133,844		146,237
Total commercial real estate	16,980		8,768		1,642		42,049		6,333,055		6,402,494
Home equity	9,482		—		855		2,858		676,288		689,483
Residential real estate, including PCI	14,292		775		1,273		300		746,170		762,810
Premium finance receivables
Commercial insurance loans	10,456		5,922		4,951		11,713		2,615,344		2,648,386
Life insurance loans	—		1,046		—		16,977		3,474,686		3,492,709
PCI - life insurance loans (1)	—		—		—		—		226,334		226,334
Consumer and other, including PCI	439		125		331		515		113,417		114,827
Total loans, net of unearned income, excluding covered loans	$	61,840	$	18,208	$	16,114	$	96,784	$	20,550,386	$	20,743,332
Covered loans	1,961		2,504		113		598		44,943		50,119
Total loans, net of unearned income	$	63,801	$	20,712	$	16,227	$	97,382	$	20,595,329	$	20,793,451

Aging as a % of Loan Balance: As of June 30, 2017	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial, industrial and other	0.2	%	—	%	0.1	%	0.3	%	99.4	%	100.0	%
Franchise	—		—		—		—		100.0		100.0
Mortgage warehouse lines of credit	—		—		—		1.0		99.0		100.0
Asset-based lending	0.1		—		0.1		0.8		99.0		100.0
Leases	0.2		—		—		—		99.8		100.0
PCI - commercial (1)	—		15.4		1.6		—		83.0		100.0
Total commercial	0.2		—		0.1		0.3		99.4		100.0
Commercial real estate
Construction	0.3		—		—		—		99.7		100.0
Land	0.2		—		—		5.8		94.0		100.0
Office	0.5		—		0.1		0.9		98.5		100.0
Industrial	0.3		—		—		0.1		99.6		100.0
Retail	0.2		—		—		1.6		98.2		100.0
Multi-family	—		—		—		0.1		99.9		100.0
Mixed use and other	0.3		—		—		0.4		99.3		100.0
PCI - commercial real estate (1)	—		6.0		0.2		2.3		91.5		100.0
Total commercial real estate	0.3		0.1		—		0.7		98.9		100.0
Home equity	1.4		—		0.1		0.4		98.1		100.0
Residential real estate, including PCI	1.9		0.1		0.2		—		97.8		100.0
Premium finance receivables
Commercial insurance loans	0.4		0.2		0.2		0.4		98.8		100.0
Life insurance loans	—		—		—		0.5		99.5		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.4		0.1		0.3		0.4		98.8		100.0
Total loans, net of unearned income, excluding covered loans	0.3	%	0.1	%	0.1	%	0.5	%	99.0	%	100.0	%
Covered loans	3.9		5.0		0.2		1.2		89.7		100.0
Total loans, net of unearned income	0.3	%	0.1	%	0.1	%	0.5	%	99.0	%	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 March 31, 2017
(Dollars in thousands)
Loan Balances:
Commercial
Commercial, industrial and other	$	12,036	$	100	$	19	$	23,780	$	3,855,140	$	3,891,075
Franchise	323		—		—		987		822,424		823,734
Mortgage warehouse lines of credit	—		—		—		9,111		145,069		154,180
Asset-based lending	1,378		—		—		3,744		875,882		881,004
Leases	570		—		—		874		318,566		320,010
PCI - commercial (1)	—		1,368		—		944		9,174		11,486
Total commercial	14,307		1,468		19		39,440		6,026,255		6,081,489
Commercial real estate
Construction	2,408		—		391		4,356		648,178		655,333
Land	350		—		—		3,274		101,455		105,079
Office	3,513		—		953		7,155		859,045		870,666
Industrial	7,004		—		—		2,656		783,302		792,962
Retail	589		—		—		4,727		906,470		911,786
Multi-family	668		—		203		4,813		799,092		804,776
Mixed use and other	6,277		—		3,207		14,166		1,940,094		1,963,744
PCI - commercial real estate (1)	—		12,559		672		15,565		128,540		157,336
Total commercial real estate	20,809		12,559		5,426		56,712		6,166,176		6,261,682
Home equity	11,722		—		430		4,884		691,222		708,258
Residential real estate, including PCI	11,943		900		3,410		5,262		699,093		720,608
Premium finance receivables
Commercial insurance loans	12,629		4,991		6,383		23,775		2,399,168		2,446,946
Life insurance loans	—		2,024		2,535		32,208		3,316,090		3,352,857
PCI - life insurance loans (1)	—		—		—		—		240,706		240,706
Consumer and other, including PCI	350		167		323		543		117,129		118,512
Total loans, net of unearned income, excluding covered loans	$	71,760	$	22,109	$	18,526	$	162,824	$	19,655,839	$	19,931,058
Covered loans	1,592		2,808		268		1,570		46,121		52,359
Total loans, net of unearned income	$	73,352	$	24,917	$	18,794	$	164,394	$	19,701,960	$	19,983,417

Aging as a % of Loan Balance: As of March 31, 2017	Nonaccrual		90+ days and still accruing		60-89 days past due		30-59 days past due		Current		Total Loans
Commercial
Commercial, industrial and other	0.3	%	—	%	—	%	0.6	%	99.1	%	100.0	%
Franchise	—		—		—		0.1		99.9		100.0
Mortgage warehouse lines of credit	—		—		—		5.9		94.1		100.0
Asset-based lending	0.2		—		—		0.4		99.4		100.0
Leases	0.2		—		—		0.3		99.5		100.0
PCI - commercial (1)	—		11.9		—		8.2		79.9		100.0
Total commercial	0.2		—		—		0.6		99.2		100.0
Commercial real estate
Construction	0.4		—		0.1		0.7		98.8		100.0
Land	0.3		—		—		3.1		96.6		100.0
Office	0.4		—		0.1		0.8		98.7		100.0
Industrial	0.9		—		—		0.3		98.8		100.0
Retail	0.1		—		—		0.5		99.4		100.0
Multi-family	0.1		—		—		0.6		99.3		100.0
Mixed use and other	0.3		—		0.2		0.7		98.8		100.0
PCI - commercial real estate (1)	—		8.0		0.4		9.9		81.7		100.0
Total commercial real estate	0.3		0.2		0.1		0.9		98.5		100.0
Home equity	1.7		—		0.1		0.7		97.5		100.0
Residential real estate, including PCI	1.7		0.1		0.5		0.7		97.0		100.0
Premium finance receivables
Commercial insurance loans	0.5		0.2		0.3		1.0		98.0		100.0
Life insurance loans	—		0.1		0.1		1.0		98.8		100.0
PCI - life insurance loans (1)	—		—		—		—		100.0		100.0
Consumer and other, including PCI	0.3		0.1		0.3		0.5		98.8		100.0
Total loans, net of unearned income, excluding covered loans	0.4	%	0.1	%	0.1	%	0.8	%	98.6	%	100.0	%
Covered loans	3.0		5.4		0.5		3.0		88.1		100.0
Total loans, net of unearned income	0.4	%	0.1	%	0.1	%	0.8	%	98.6	%	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 June 30, 2017, $16.1 million of all loans, excluding covered loans, or 0.1%, were 60 to 89 days past due and $96.8 million or 0.5%, were 30 to 59 days (or one payment) past due. As of March 31, 2017, $18.5 million of all loans, excluding covered loans, or 0.1%, were 60 to 89 days past due and $162.8 million, or 0.8%, 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 June 30, 2017 that were current with regard to the contractual terms of the loan agreement represent 98.1% of the total home equity portfolio. Residential real estate loans at June 30, 2017 that were current with regards to the contractual terms of the loan agreements comprise 97.8% of total residential real estate loans outstanding.

Non-performing Loans Rollforward

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

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2017			2016			2017			2016
Balance at beginning of period	$	78,979		$	89,499		$	87,454		$	84,057
Additions, net	10,888			10,351			19,497			22,517
Return to performing status	(975		)	(873		)	(2,567		)	(2,879		)
Payments received	(10,684		)	(4,810		)	(16,298		)	(8,118		)
Transfer to OREO and other repossessed assets	(2,543		)	(1,818		)	(4,204		)	(3,898		)
Charge-offs	(4,344		)	(2,943		)	(5,624		)	(3,476		)
Net change for niche loans (1)	(2,271		)	(1,287		)	(9,208		)	(84		)
Balance at end of period	$	69,050		$	88,119		$	69,050		$	88,119

(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 June 30, 2017, 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 non-performing 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						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Allowance for loan losses at beginning of period	$	125,819		$	110,171		$	122,291		$	105,400
Provision for credit losses	8,952			9,269			14,268			17,692
Other adjustments	(30		)	(134		)	(86		)	(212		)
Reclassification to allowance for unfunded lending-related commitments	106			(40		)	(32		)	(121		)
Charge-offs:
Commercial	913			721			1,554			1,392
Commercial real estate	1,985			502			2,246			1,173
Home equity	1,631			2,046			2,256			3,098
Residential real estate	146			693			475			1,186
Premium finance receivables—commercial	1,878			1,911			3,305			4,391
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	175			224			309			331
Total charge-offs	6,728			6,097			10,145			11,571
Recoveries:
Commercial	561			121			834			750
Commercial real estate	276			296			830			665
Home equity	144			71			209			119
Residential real estate	54			31			232			143
Premium finance receivables—commercial	404			633			1,016			1,420
Premium finance receivables—life insurance	—			—			—			—
Consumer and other	33			35			174			71
Total recoveries	1,472			1,187			3,295			3,168
Net charge-offs	(5,256		)	(4,910		)	(6,850		)	(8,403		)
Allowance for loan losses at period end	$	129,591		$	114,356		$	129,591		$	114,356
Allowance for unfunded lending-related commitments at period end	1,705			1,070			1,705			1,070
Allowance for credit losses at period end	$	131,296		$	115,426		$	131,296		$	115,426
Annualized net charge-offs by category as a percentage of its own respective category’s average:
Commercial	0.02		%	0.05		%	0.02		%	0.03		%
Commercial real estate	0.11			0.01			0.05			0.02
Home equity	0.85			1.03			0.58			0.77
Residential real estate	0.03			0.26			0.05			0.22
Premium finance receivables—commercial	0.23			0.21			0.19			0.25
Premium finance receivables—life insurance	0.00			0.00			0.00			0.00
Consumer and other	0.45			0.57			0.22			0.38
Total loans, net of unearned income, excluding covered loans	0.10		%	0.11		%	0.07		%	0.09		%
Net charge-offs as a percentage of the provision for credit losses	58.71		%	52.97		%	48.01		%	47.50		%
Loans at period-end, excluding covered loans	$	20,743,332		$	18,174,655
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	0.63		%	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 $1.7 million and $1.1 million as of June 30, 2017 and June 30, 2016, 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 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 impairment reserve.

At June 30, 2017, the Company had $79.3 million of impaired loans with $29.0 million of this balance requiring $5.6 million of specific impairment reserves. At March 31, 2017, the Company had $87.5 million of impaired loans with $40.0 million of this balance requiring $8.2 million of specific impairment reserves. The most significant fluctuations in the recorded investment of impaired loans with specific impairment from March 31, 2017 to June 30, 2017 occurred within the commercial real estate industrial and commercial real estate mixed use and other portfolios. The recorded investment and specific impairment reserves in the commercial real estate industrial portfolio decreased by $4.8 million and $1.7 million, respectively, which was primarily the result of the sale and partial charge-off of one relationship in the second quarter of 2017 with a recorded investment of $4.0 million and a specific impairment reserve of $1.7 million. The recorded investment and specific impairment reserves in the commercial real estate mixed use and other portfolio decreased by $4.0 million and $600,000, respectively. These decreases were primarily the result of three loans with total recorded investment of $3.0 million and specific impairment reserves of $586,000 no longer requiring specific impairment reserves during the second quarter of 2017. 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;

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

• 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 2017, the Company modified its historical loss experience analysis by incorporating seven-year average loss rate assumptions, for its historical loss experience to capture an extended credit cycle. The current seven-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-, five- and six-year average historical loss rates on a quarterly basis as a comparison.

Home Equity and Residential Real Estate Loans:

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

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

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

Premium Finance Receivables:

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

Methodology in Assessing Impairment and Charge-off Amounts

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

In many cases, the Company simultaneously values the underlying collateral by marketing the property to market participants interested in purchasing properties of the same type. If the Company receives offers or indications of interest, we will analyze the 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

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collateral. Additionally, the Company takes into account the strength of any guarantees and the ability of the borrower to provide value related to those guarantees in determining the ultimate charge-off or reserve associated with any impaired loans. Accordingly, the Company may charge-off a loan to a value below the net appraised value if it believes that an expeditious liquidation is desirable in the circumstance and it has legitimate offers or other indications of interest to support a value that is less than the net appraised value. Alternatively, the Company may carry a loan at a value that is in excess of the appraised value if the Company has a guarantee from a borrower that the Company believes has realizable value. In evaluating the strength of any guarantee, the Company evaluates the financial wherewithal of the guarantor, the guarantor’s reputation, and the guarantor’s willingness and desire to work with the Company. The Company then conducts a review of the strength of a guarantee on a frequency established as the circumstances and conditions of the borrower warrant.

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

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

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

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

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

TDRs

At June 30, 2017, the Company had $33.1 million in loans modified in TDRs. The $33.1 million in TDRs represents 77 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 $39.7 million representing 85 credits at March 31, 2017 and decreased from $49.6 million representing 97 credits at June 30, 2016.

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.

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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 non-performing loans. Each TDR was reviewed for impairment at June 30, 2017 and approximately $953,000 of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. Additionally, at June 30, 2017, the Company was committed to lend additional $122,000 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:

	June 30,			March 31,			June 30,
(Dollars in thousands)	2017			2017			2016
Accruing TDRs:
Commercial	$	3,886		$	4,607		$	3,931
Commercial real estate	17,349			18,923			24,450
Residential real estate and other	6,773			4,862			4,929
Total accruing TDRs	$	28,008		$	28,392		$	33,310
Non-accrual TDRs: (1)
Commercial	$	1,110		$	1,424		$	1,477
Commercial real estate	1,839			7,338			12,240
Residential real estate and other	2,134			2,515			2,608
Total non-accrual TDRs	$	5,083		$	11,277		$	16,325
Total TDRs:
Commercial	$	4,996		$	6,031		$	5,408
Commercial real estate	19,188			26,261			36,690
Residential real estate and other	8,907			7,377			7,537
Total TDRs	$	33,091		$	39,669		$	49,635
Weighted-average contractual interest rate of TDRs	4.28		%	4.37		%	4.31		%

(1) Included in total non-performing loans.

TDR Rollforward

The tables below present a summary of TDRs as of June 30, 2017 and June 30, 2016, and shows the changes in the balance during those periods:

Three Months Ended June 30, 2017 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	6,031		$	26,261		$	7,377		$	39,669
Additions during the period	—			—			2,210			2,210
Reductions:
Charge-offs	(287		)	(805		)	—			(1,092		)
Transferred to OREO and other repossessed assets	—			(610		)	—			(610		)
Removal of TDR loan status (1)	(610		)	(1,648		)	—			(2,258		)
Payments received	(138		)	(4,010		)	(680		)	(4,828		)
Balance at period end	$	4,996		$	19,188		$	8,907		$	33,091

(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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Three Months Ended June 30, 2016 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	5,225		$	39,888		$	7,442		$	52,555
Additions during the period	275			—			380			655
Reductions:
Charge-offs	—			(410		)	(212		)	(622		)
Transferred to OREO and other repossessed assets	—			(684		)	—			(684		)
Removal of TDR loan status (1)	—			(739		)	—			(739		)
Payments received	(92		)	(1,365		)	(73		)	(1,530		)
Balance at period end	$	5,408		$	36,690		$	7,537		$	49,635

Six Months Ended June 30, 2017 (Dollars in thousands)	Commercial			Commercial Real Estate			Residential Real Estate and Other			Total
Balance at beginning of period	$	6,130		$	28,146		$	7,432		$	41,708
Additions during the period	95			1,245			2,383			3,723
Reductions:
Charge-offs	(315		)	(925		)	(77		)	(1,317		)
Transferred to OREO and other repossessed assets	—			(610		)	(96		)	(706		)
Removal of TDR loan status (1)	(610		)	(2,331		)	—			(2,941		)
Payments received	(304		)	(6,337		)	(735		)	(7,376		)
Balance at period end	$	4,996		$	19,188		$	8,907		$	33,091

Six Months Ended June 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	317			8,521			540			9,378
Reductions:
Charge-offs	(20		)	(834		)	(212		)	(1,066		)
Transferred to OREO and other repossessed assets	—			(684		)	—			(684		)
Removal of TDR loan status (1)	—			(5,156		)	—			(5,156		)
Payments received	(636		)	(3,864		)	(190		)	(4,690		)
Balance at period end	$	5,408		$	36,690		$	7,537		$	49,635

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

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Other Real Estate Owned

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

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Balance at beginning of period	$	39,864		$	41,002		$	40,282		$	43,945
Disposal/resolved	(4,270		)	(6,591		)	(6,914		)	(13,357		)
Transfers in at fair value, less costs to sell	3,965			1,309			6,233			4,600
Transfers in from covered OREO subsequent to loss share expiration	—			3,300			760			3,300
Additions from acquisition	—			—			—			1,064
Fair value adjustments	(198		)	(957		)	(1,000		)	(1,489		)
Balance at end of period	$	39,361		$	38,063		$	39,361		$	38,063

	Period End
(Dollars in thousands)	June 30, 2017		March 31, 2017		June 30, 2016
Residential real estate	$	7,684	$	7,597	$	9,153
Residential real estate development	755		1,240		2,133
Commercial real estate	30,922		31,027		26,777
Total	$	39,361	$	39,864	$	38,063

Deposits

Total deposits at June 30, 2017 were $22.6 billion,an increase of $2.6 billion, or 13%, compared to total deposits at June 30, 2016. 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 June 30, 2017:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of June 30, 2017 (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	$	537	$	37,577	$	128,018	$	637,354	$	803,486	0.67	%
4-6 months	1,252		30,757		—		792,236		824,245		0.91	%
7-9 months	1,494		25,237		—		826,270		853,001		0.99	%
10-12 months	59,732		15,749		—		714,749		790,230		1.04	%
13-18 months	—		17,213		—		737,219		754,432		1.17	%
19-24 months	249		10,922		—		179,144		190,315		1.25	%
24+ months	1,000		17,467		—		285,216		303,683		1.45	%
Total	$	64,264	$	154,922	$	128,018	$	4,172,188	$	4,519,392	1.00	%

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

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

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

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

	Three Months Ended
	June 30, 2017				March 31, 2017				June 30, 2016
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Non-interest bearing	$	5,904,679	27	%	$	5,787,034	27	%	$	5,223,384	28	%
NOW and interest bearing demand deposits	2,470,131		11		2,512,598		12		2,383,125		12
Wealth management deposits	2,091,251		10		2,082,285		10		1,585,607		8
Money market	4,435,670		21		4,407,902		21		4,308,657		22
Savings	2,329,195		11		2,227,024		10		1,803,421		9
Time certificates of deposit	4,295,427		20		4,236,861		20		3,985,185		21
Total average deposits	$	21,526,353	100	%	$	21,253,704	100	%	$	19,289,379	100	%

Total average deposits for the second quarter of 2017 were $21.5 billion, an increase of $2.2 billion, or 12%, from the second quarter of 2016. 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 $681.3 million, or 13%, in the second quarter of 2017 compared to the second quarter of 2016.

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, and the Company does not consider brokered deposits to be a vital component of its current liquidity resources. Historically, brokered deposits have represented a small component of the Company’s total deposits outstanding, as set forth in the table below:

	June 30,						December 31,
(Dollars in thousands)	2017			2016			2016			2015			2014
Total deposits	$	22,605,692		$	20,041,750		$	21,658,632		$	18,639,634		$	16,281,844
Brokered deposits	1,552,893			1,020,233			1,159,475			862,026			718,986
Brokered deposits as a percentage of total deposits	6.9		%	5.1		%	5.4		%	4.6		%	4.4		%

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
	June 30,		March 31,		June 30,
(Dollars in thousands)	2017		2017		2016
FHLB advances	$	689,600	$	181,338	$	946,081
Other borrowings:
Notes payable	48,662		52,363		63,642
Short-term borrowings	42,074		52,002		41,597
Secured borrowings	131,582		132,577		124,317
Other	18,229		18,070		18,677
Total other borrowings	$	240,547	$	255,012	$	248,233
Subordinated notes	139,007		138,980		138,898
Junior subordinated debentures	253,566		253,566		253,566
Total other funding sources	$	1,322,720	$	828,896	$	1,586,778

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 $318.3 million at June 30, 2017, compared to $227.6 million at March 31, 2017 and $588.1 million at June 30, 2016.

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 June 30, 2017, the Company had a balance under the term facility of $45.0 million compared to $52.4 million at March 31, 2017 and $59.9 million at June 30, 2016. 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 June 30, 2017, March 31, 2017 and June 30, 2016, 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 $46.3 million at June 30, 2017 compared to $39.2 million at March 31, 2017 and $38.8 million at June 30, 2016. 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 $123.4 million at June 30, 2017 compared to $120.1 million at March 31, 2017 and $123.7 million at June 30, 2016. At June 30, 2017, the interest rate of the Canadian Secured Borrowing was 1.6431%.

Other borrowings include fixed-rate promissory notes related to office buildings owned by the Company and non-recourse notes issued by the Company to other banks related to certain capital leases. At June 30, 2017, the fixed-rate promissory note had a balance of $49.5 million compared to $17.6 million at March 31, 2017 and $18.0 million at June 30, 2016. The increase in the second quarter of 2017 was the result of the Company issuing a $49.6 million fixed-rate promissory note in June 2017. At that time, the previous note to an unrelated creditor was paid-off by the Company.

At June 30, 2017, the Company had outstanding subordinated notes totaling $139.0 million compared to $139.0 million and $138.9 million outstanding at March 31, 2017 and June 30, 2016, 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 June 30, 2017, March 31, 2017 and June 30, 2016. 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. 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. 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:

	June 30, 2017		March 31, 2017		June 30, 2016
Leverage ratio	9.2	%	9.3	%	9.2	%
Tier 1 capital to risk-weighted assets	9.8		10.0		10.1
Common equity Tier 1 capital to risk-weighted assets	9.3		8.9		8.9
Total capital to risk-weighted assets	12.0		12.2		12.4
Total average equity-to-total average assets(1)	10.8		10.9		10.4

(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 Series D preferred stock, 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 and April of 2017, the Company declared a quarterly cash dividend of $0.14 per common share. In January, April, July and October of 2016, the Company declared a quarterly cash dividend of $0.12 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 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

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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 2016 Annual Report on Form 10-K and in any of the Company’s subsequent SEC filings. The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and is including this statement for purposes of invoking these safe harbor provisions. Such forward-looking statements may be deemed to include, among other things, statements relating to the Company’s future financial performance, the performance of its loan portfolio, the expected amount of future credit reserves and charge-offs, delinquency trends, growth plans, regulatory developments, securities that the Company may offer from time to time, and management’s long-term performance goals, as well as statements relating to the anticipated effects on financial condition and results of operations from expected developments or events, the Company’s business and growth strategies, including future acquisitions of banks, specialty finance or wealth management businesses, internal growth and plans to form additional de novo banks or branch offices. Actual results could differ materially from those addressed in the forward-looking statements as a result of numerous factors, including the following:

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

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

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

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

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

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

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

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

• competitive pressures in the financial services business which may affect the pricing of the Company’s loan and deposit products as well as its services (including wealth management services), which may result in loss of market share and reduced income from deposits, loans, advisory fees and income from other products;

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

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

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

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

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

• ability of the Company to use technology to provide products and services that will satisfy customer demands and create efficiencies in operations and to manage risks associated therewith;

• adverse effects on our information technology systems resulting from failures, human error or cyberattack, any of which could result in an information or security breach, the disclosure or misuse of confidential or proprietary information, significant legal and financial losses and reputational harm;

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

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

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

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

• environmental liability risk associated with lending activities;

• the impact of any claims or legal actions to which the Company is subject, including any effect on our reputation;

• losses incurred in connection with repurchases and indemnification payments related to mortgages and increases in reserves associated therewith;

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

• the soundness of other financial institutions;

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

• examinations and challenges by tax authorities;

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

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

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

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

• a lowering of our credit rating;

• changes in U.S. monetary policy;

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

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

• the impact of heightened capital requirements;

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

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

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

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

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

Therefore, there can be no assurances that future actual results will correspond to these forward-looking statements. The reader is cautioned not to place undue reliance on any forward-looking statement made by the Company. Any such statement speaks only as of the date the statement was made or as of such date that may be referenced within the statement. The Company undertakes no obligation to update any forward-looking statement to reflect the impact of circumstances 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 June 30, 2017, March 31, 2017 and June 30, 2016 is as follows:

Static Shock Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
June 30, 2017	19.3	%	10.4	%	(13.5	)%
March 31, 2017	17.7	%	9.3	%	(13.2	)%
June 30, 2016	16.9	%	8.9	%	(8.9	)%

Ramp Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points
June 30, 2017	7.8	%	4.0	%	(4.6	)%
March 31, 2017	7.3	%	3.9	%	(4.8	)%
June 30, 2016	7.0	%	3.5	%	(3.7	)%

One method utilized by financial institutions, including the Company, to manage interest rate risk is to enter into derivative financial instruments. Derivative financial instruments include interest rate swaps, interest rate caps and floors, futures, forwards, option contracts and other financial instruments with similar characteristics. Additionally, the Company enters into commitments to fund 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 six months of 2017 and 2016, the Company entered into certain covered call option transactions related to certain securities held by the Company. The Company uses these option transactions (rather than entering into other derivative interest rate contracts, such as interest rate floors) to economically hedge positions and compensate for net interest margin compression by increasing the total return associated with the related securities through fees generated from these options. Although the revenue received from these options is recorded as non-interest income rather than interest income, the increased return attributable to the related securities from these options contributes to the Company’s overall profitability. The Company’s exposure to interest rate risk may be impacted by these transactions. To mitigate this risk, the Company may acquire fixed rate term debt or use financial derivative instruments. There were no covered call options outstanding as of June 30, 2017 and 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

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. The court entered a case management order governing the litigation on November 1, 2016. Lehman Holdings filed an amended complaint against Wintrust Mortgage on December 29, 2016. Wintrust Mortgage moved to dismiss the amended complaint for lack of subject matter jurisdiction and improper venue. This motion remains pending before the court.

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.

In addition, 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.

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 described above, including our ordinary course litigation, 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, 2016.

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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 June 30, 2017. 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 (1)
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

(1) Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2017, 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:	August 8, 2017	/s/ DAVID L. STOEHR
		David L. Stoehr
		Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

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INDEX OF EXHIBITS

Exhibit No.	Exhibit Description
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 (1)
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

(1) Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2017, 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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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Edward J. Wehmer, certify that:

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

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounted principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: August 8, 2017

/s/ EDWARD J. WEHMER

Name:    Edward J. Wehmer

Title:      President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, David L. Stoehr, certify that:

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

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounted principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: August 8, 2017

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATIONS

SARBANES-OXLEY ACT SECTION 906

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

(1) The Quarterly Report of the Company on Form 10-Q for the period ended June 30, 2017, as filed with the Securities and Exchange Commission on August 8, 2017, (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

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

/s/ EDWARD J. WEHMER

Name:    Edward J. Wehmer

Title:      President and Chief Executive Officer

Date:      August 8, 2017

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and

               Chief Financial Officer

Date:      August 8, 2017

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

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Entity Current Reporting Status	Yes
Trading Symbol	WTFC
Entity Registrant Name	WINTRUST FINANCIAL CORP
Entity Central Index Key	0001015328
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		55,810,134

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Consolidated Statements Of Condition - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Assets
Cash and due from banks	$ 296,105	$ 267,194	$ 267,551
Federal funds sold and securities purchased under resale agreements	56	2,851	4,024
Interest bearing deposits with banks	1,011,635	980,457	693,269
Available-for-sale securities, at fair value	1,649,636	1,724,667	637,663
Held-to-maturity securities, at amortized cost ($787.5 million, $607.6 million and $1.0 billion fair value at June 30, 2017, December 31, 2016 and June 30, 2016 respectively)	793,376	635,705	992,211
Trading account securities	1,987	1,989	3,613
Federal Home Loan Bank and Federal Reserve Bank stock	80,812	133,494	121,319
Brokerage customer receivables	23,281	25,181	26,866
Mortgage loans held-for-sale	382,837	418,374	554,256
Loans, net of unearned income, excluding covered loans	20,743,332	19,703,172	18,174,655
Covered loans	50,119	58,145	105,248
Total loans	20,793,451	19,761,317	18,279,903
Allowance for loan losses	(129,591)	(122,291)	(114,356)
Allowance for covered loan losses	(1,074)	(1,322)	(2,412)
Net loans	20,662,786	19,637,704	18,163,135
Premises and equipment, net	605,211	597,301	595,792
Lease investments, net	191,248	129,402	103,749
Accrued interest receivable and other assets	577,359	593,796	670,014
Trade date securities receivable	133,130	0	1,079,238
Goodwill	500,260	498,587	486,095
Other intangible assets	19,546	21,851	21,821
Total assets	26,929,265	25,668,553	24,420,616
Deposits:
Non-interest bearing	6,294,052	5,927,377	5,367,672
Interest bearing	16,311,640	15,731,255	14,674,078
Total deposits	22,605,692	21,658,632	20,041,750
Federal Home Loan Bank advances	318,270	153,831	588,055
Other borrowings	277,710	262,486	252,611
Subordinated notes	139,029	138,971	138,915
Junior subordinated debentures	253,566	253,566	253,566
Trade date securities payable	5,151	0	40,000
Accrued interest payable and other liabilities	490,389	505,450	482,124
Total liabilities	24,089,807	22,972,936	21,797,021
Preferred stock, no par value; 20,000,000 shares authorized:
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2017, December 31, 2016 and June 30, 2016; 55,801,665 shares issued at June 30, 2017, 51,978,289 shares issued at December 31, 2016 and 51,708,585 shares issued at June 30, 2016	55,802	51,978	51,708
Surplus	1,511,080	1,365,781	1,350,751
Treasury stock, at cost, 101,738 shares at June 30, 2017, 97,749 shares at December 31, 2016, and 89,430 shares at June 30, 2016	(4,884)	(4,589)	(4,145)
Retained earnings	1,198,997	1,096,518	1,008,464
Accumulated other comprehensive loss	(46,537)	(65,328)	(34,440)
Total shareholders’ equity	2,839,458	2,695,617	2,623,595
Total liabilities and shareholders’ equity	26,929,265	25,668,553	24,420,616
Series C - $1,000 liquidation value; no shares issued and outstanding at June 30, 2017, and 126,257 shares issued and outstanding at December 31, 2016 and June 30, 2016, respectively
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	0	126,257	126,257
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2017, December 31, 2016 and June 30, 2016, respectively
Preferred stock, no par value; 20,000,000 shares authorized:
Preferred stock, Series C and Series D	$ 125,000	$ 125,000	$ 125,000

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Consolidated Statements Of Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Held-to-maturity securities	$ 787,489	$ 607,602	$ 1,010,179
Preferred stock, no par value (usd per share)
Preferred stock, 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	55,801,665	51,978,289	51,708,585
Treasury stock, shares	101,738	97,749	89,430
Series C Preferred Stock
Preferred stock, liquidation value per share (usd per share)	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares outstanding	0	126,257	126,257
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
Preferred stock, shares issued	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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income
Interest and fees on loans	$ 212,709	$ 178,530	$ 412,023	$ 351,657
Interest bearing deposits with banks	1,634	793	3,257	1,539
Federal funds sold and securities purchased under resale agreements	1	1	2	2
Investment securities	15,524	16,398	29,097	33,588
Trading account securities	4	14	15	25
Federal Home Loan Bank and Federal Reserve Bank stock	1,153	1,112	2,223	2,049
Brokerage customer receivables	156	216	323	435
Total interest income	231,181	197,064	446,940	389,295
Interest expense
Interest on deposits	18,471	13,594	34,741	26,375
Interest on Federal Home Loan Bank advances	2,933	2,984	4,523	5,870
Interest on other borrowings	1,149	1,086	2,288	2,144
Interest on subordinated notes	1,786	1,777	3,558	3,554
Interest on junior subordinated debentures	2,433	2,353	4,841	4,573
Total interest expense	26,772	21,794	49,951	42,516
Net interest income	204,409	175,270	396,989	346,779
Provision for credit losses	8,891	9,129	14,100	17,163
Net interest income after provision for credit losses	195,518	166,141	382,889	329,616
Non-interest income
Wealth management	19,905	18,852	40,053	37,172
Mortgage banking	35,939	36,807	57,877	58,542
Service charges on deposit accounts	8,696	7,726	16,961	15,132
Gains (losses) on investment securities, net	47	1,440	(8)	2,765
Fees from covered call options	890	4,649	1,649	6,361
Trading losses, net	(420)	(316)	(740)	(484)
Operating lease income, net	6,805	4,005	12,587	6,811
Other	18,110	11,636	30,358	27,252
Total non-interest income	89,972	84,799	158,737	153,551
Non-interest expense
Salaries and employee benefits	106,502	100,894	205,818	196,705
Equipment	9,909	9,307	18,911	18,074
Operating lease equipment depreciation	5,662	3,385	10,298	5,435
Occupancy, net	12,586	11,943	25,687	23,891
Data processing	7,804	7,138	15,729	13,657
Advertising and marketing	8,726	6,941	13,876	10,720
Professional fees	7,510	5,419	12,170	9,478
Amortization of other intangible assets	1,141	1,248	2,305	2,546
FDIC insurance	3,874	4,040	8,030	7,653
OREO expense, net	739	1,348	2,404	1,908
Other	19,091	19,306	36,434	34,632
Total non-interest expense	183,544	170,969	351,662	324,699
Income before taxes	101,946	79,971	189,964	158,468
Income tax expense	37,049	29,930	66,689	59,316
Net income	64,897	50,041	123,275	99,152
Preferred stock dividends	2,050	3,628	5,678	7,256
Net income applicable to common shares	$ 62,847	$ 46,413	$ 117,597	$ 91,896
Net income per common share-Basic (usd per share)	$ 1.15	$ 0.94	$ 2.20	$ 1.88
Net income per common share-Diluted (usd per share)	1.11	0.90	2.11	1.80
Cash dividends declared per common share (usd per share)	$ 0.14	$ 0.12	$ 0.28	$ 0.24
Weighted average common shares outstanding	54,775	49,140	53,528	48,794
Dilutive potential common shares	1,812	3,965	2,981	3,887
Average common shares and dilutive common shares	56,587	53,105	56,509	52,681

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Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 64,897	$ 50,041	$ 123,275	$ 99,152
Unrealized gains on securities
Before tax	17,593	5,968	24,972	31,144
Tax effect	(6,910)	(2,244)	(9,810)	(12,232)
Net of tax	10,683	3,724	15,162	18,912
Reclassification of net gains (losses) included in net income
Before tax	47	1,440	(8)	2,765
Tax effect	(18)	(565)	3	(1,086)
Net of tax	29	875	(5)	1,679
Reclassification of amortization of unrealized gains and losses on investment securities transferred to held-to-maturity from available-for-sale
Before tax	22	(3,832)	1,450	(7,257)
Tax effect	(9)	1,506	(570)	2,845
Net of tax	13	(2,326)	880	(4,412)
Net unrealized gains on securities	10,641	5,175	14,287	21,645
Unrealized (losses) gains on derivative instruments
Before tax	(310)	(523)	1,305	(45)
Tax effect	123	206	(511)	18
Net unrealized (losses) gains on derivative instruments	(187)	(317)	794	(27)
Foreign currency adjustment
Before tax	3,820	856	5,035	9,203
Tax effect	(987)	(244)	(1,325)	(2,553)
Net foreign currency adjustment	2,833	612	3,710	6,650
Total other comprehensive income	13,287	5,470	18,791	28,268
Comprehensive income	$ 78,184	$ 55,511	$ 142,066	$ 127,420

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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, 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	99,152					99,152
Other comprehensive income, net of tax	28,268						28,268
Cash dividends declared on common stock	(11,643)					(11,643)
Dividends on preferred stock	(7,256)					(7,256)
Stock-based compensation	4,752			4,752
Conversion of Series C preferred stock to common stock	0	(30)	1	29
Common stock issued for:
New issuance, net of costs	152,823		3,000	149,823
Exercise of stock options and warrants	3,088		97	2,991
Restricted stock awards	29		87	114	(172)
Employee stock purchase plan	1,299		29	1,270
Director compensation plan	809		25	784
Balance at Jun. 30, 2016	2,623,595	251,257	51,708	1,350,751	(4,145)	1,008,464	(34,440)
Balance at Dec. 31, 2016	2,695,617	251,257	51,978	1,365,781	(4,589)	1,096,518	(65,328)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	123,275					123,275
Other comprehensive income, net of tax	18,791						18,791
Cash dividends declared on common stock	(15,118)					(15,118)
Dividends on preferred stock	(5,678)					(5,678)
Stock-based compensation	5,746			5,746
Conversion of Series C preferred stock to common stock	0	(126,257)	3,121	123,136
Common stock issued for:
Exercise of stock options and warrants	15,061		573	14,488	0
Restricted stock awards	(295)		79	(79)	(295)
Employee stock purchase plan	1,249		19	1,230
Director compensation plan	810		32	778
Balance at Jun. 30, 2017	$ 2,839,458	$ 125,000	$ 55,802	$ 1,511,080	$ (4,884)	$ 1,198,997	$ (46,537)

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Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating Activities:
Net income	$ 123,275	$ 99,152
Adjustments to reconcile net income to net cash provided by (used for) operating activities
Provision for credit losses	14,100	17,163
Depreciation, amortization and accretion, net	29,958	27,296
Stock-based compensation expense	5,746	4,752
Net amortization of premium on securities	3,198	1,840
Accretion of discount on loans	(11,979)	(15,849)
Mortgage servicing rights fair value change, net	(1,265)	(4,291)
Originations and purchases of mortgage loans held-for-sale	(1,856,725)	(1,948,890)
Proceeds from sales of mortgage loans held-for-sale	1,928,870	1,825,686
Bank owned life insurance (BOLI) income	(1,873)	(1,729)
Decrease (increase) in trading securities, net	2	(3,165)
Net decrease in brokerage customer receivables	1,900	765
Gains on mortgage loans sold	(43,547)	(43,014)
Losses (gains) on investment securities, net	8	(2,765)
Gains on early extinguishment of debt	0	(4,305)
(Gains) losses on sales of premises and equipment, net	(140)	3
Net losses on sales and fair value adjustments of other real estate owned	896	322
Increase in accrued interest receivable and other assets, net	(45,232)	(116,118)
(Decrease) increase in accrued interest payable and other liabilities, net	(22,451)	70,756
Net Cash Provided by (Used for) Operating Activities	124,741	(92,391)
Investing Activities:
Proceeds from maturities of available-for-sale securities	138,516	529,463
Proceeds from maturities of held-to-maturity securities	50,923	319
Proceeds from sales and calls of available-for-sale securities	9,729	1,071,996
Proceeds from calls of held-to-maturity securities	51,062	281,981
Purchases of available-for-sale securities	(185,245)	(1,526,467)
Purchases of held-to-maturity securities	(256,532)	(350,078)
Redemption (purchase) of Federal Home Loan Bank and Federal Reserve Bank stock, net	52,682	(19,738)
Net cash paid in business combinations	(284)	(18,133)
Proceeds from sales of other real estate owned	8,601	19,455
Proceeds received from the FDIC related to reimbursements on covered assets	791	420
Net increase in interest bearing deposits with banks	(31,178)	(81,250)
Net increase in loans	(1,032,772)	(942,958)
Redemption of BOLI	0	659
Purchases of premises and equipment, net	(26,260)	(24,235)
Net Cash Used for Investing Activities	(1,219,967)	(1,058,566)
Financing Activities:
Increase in deposit accounts	947,150	1,302,188
Increase (decrease) in subordinated notes and other borrowings, net	15,163	(13,249)
Increase (decrease) in Federal Home Loan Bank advances, net	163,000	(271,025)
Proceeds from the issuance of common stock, net	0	152,823
Redemption of junior subordinated debentures, net	0	(10,695)
Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and conversion of common stock warrants	17,120	5,766
Common stock repurchases for tax withholdings related to stock-based compensation	(295)	(172)
Dividends paid	(20,796)	(18,899)
Net Cash Provided by Financing Activities	1,121,342	1,146,737
Net Increase (Decrease) in Cash and Cash Equivalents	26,116	(4,220)
Cash and Cash Equivalents at Beginning of Period	270,045	275,795
Cash and Cash Equivalents at End of Period	$ 296,161	$ 271,575

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Basis of Presentation

6 Months Ended

Jun. 30, 2017

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, 2016 (“2016 Form 10-K”). Operating results reported for the period 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 2016 Form 10-K.

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Recent Accounting Developments

6 Months Ended

Jun. 30, 2017

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. In May 2016 and December 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients” and ASU 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” to clarify specific aspects of implementation, including the collectability criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications, completed contracts at transition, the applicability of loan guarantee fees, impairment of capitalized contract costs and certain disclosure requirements. In February 2017, the FASB issued ASU No. 2017-05, “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets,” to clarify the implementation guidance within ASU No. 2014-09 surrounding transfers of nonfinancial assets, including partial sales of such assets, and its impact on revenue recognition. Like ASU No. 2014-09, this guidance is effective for fiscal years beginning after December 15, 2017.

The Company is currently evaluating the impact on the consolidated financial statements of adopting this new guidance. The Company is currently assessing specific characteristics of the various sources of revenues previously identified as being affected by the new guidance and has reviewed specific contracts related to those sources. As certain significant revenue sources such as interest income are considered not in-scope, the Company does not believe the new guidance will have a significant impact on its consolidated financial statements. The Company expects to adopt the new guidance using the modified retrospective approach.

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 discounted 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. Excluding any impact from the clarification of contracts representing a lease, the Company expects to recognize separate lease liabilities and right to use assets for the amounts related to certain facilities under operating lease agreements disclosed in Note 15 - Minimum Lease Commitments in the 2016 Form 10-K. Additionally, the Company does not expect to significantly change operating lease agreements prior to adoption.

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 was effective for fiscal years beginning after December 15, 2016 and did not 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 was effective for fiscal years beginning after December 15, 2016 and did not 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 included 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 was effective for fiscal years beginning after December 15, 2016. In the first six months of 2017, the Company recorded $3.9 million of excess tax benefits within income tax expense on the Consolidated Statements of Income as a result of adoption.

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 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. Specifically, the Company has established a group consisting of individuals from the various areas of the Company tasked with transitioning to the new requirements. At this time, the Company is reviewing potential methodologies for estimating expected credit losses using reasonable and supportable forecast information and has identified certain data and system requirements.

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.

In November 2016, the FASB issued ASU No. 2016-18 “Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force),”to clarify the classification and presentation of changes in restricted cash on the statement of cash flows. 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. 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.

Consolidation

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 was effective for fiscal years beginning after December 15, 2016 and did not have a material impact on the Company's consolidated financial statements.

Business Combinations

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” to improve such definition and, as a result, assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The definition of a business impacts many areas of accounting including acquisitions, disposals, goodwill and consolidation. 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 prospective approach. The Company expects the adoption of this new guidance to impact the determination of whether future acquisitions are considered a business combination and the resulting impact of such determination on the consolidated financial statements.

Goodwill

In January 2017, the FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” to simplify the subsequent measurement of goodwill. When the carrying amount of a reporting unit exceeds its fair value, an entity would no longer be required to determine goodwill impairment by assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit was acquired in a business combination. Goodwill impairment would be recognized according to the excess of the carrying amount of the reporting unit over the calculated fair value of such unit. 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 prospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Compensation

In March 2017, the FASB issued ASU No. 2017-07, “Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. An entity will be required to report the service cost component of such costs in the same line item or items as other compensation costs related to services rendered. Additionally, only the service cost component will be eligible for capitalization when applicable. 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 related to presentation of the service cost component and a prospective approach related to capitalization of such costs. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, “Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting,” to clarify when modification accounting is appropriate for changes to the terms and conditions of a share-based payment award. An entity will be required to account for such changes as a modification unless certain criteria is met. 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 prospective approach for awards modified on or after the adoption date. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Amortization of Premium on Certain Debt Securities

In March 2017, the FASB issued ASU No. 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities,” to amend the amortization period for certain purchased callable debt securities held at a premium. The amortization period for such securities will be shortened to the earliest call date. 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. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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Business Combinations

6 Months Ended

Jun. 30, 2017

Business Combinations [Abstract]

Business Combinations

Business Combinations

Non-FDIC Assisted Bank Acquisitions

On November 18, 2016, the Company acquired First Community Financial Corporation ("FCFC"). FCFC was the parent company of First Community Bank. Through this transaction, the Company acquired First Community Bank's two banking locations in Elgin, Illinois. First Community Bank was merged into the Company's wholly-owned subsidiary St. Charles Bank & Trust Company ("St. Charles Bank"). The Company acquired assets with a fair value of approximately $187.2 million, including approximately $79.5 million of loans, and assumed deposits with a fair value of approximately $150.3 million. Additionally, the Company recorded goodwill of $13.0 million on the acquisition.

On August 19, 2016, the Company, through its wholly-owned subsidiary Lake Forest Bank & Trust Company ("Lake Forest Bank"), acquired approximately $561.4 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 $134.2 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.

FDIC-Assisted Transactions

From 2010 to 2012, 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 loss 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. In the second quarter of 2017, the Company recorded a $4.9 million reduction to the estimated loss share liability as a result of an adjustment related to such clawback provisions. 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 during the periods indicated:

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Balance at beginning of period	$	18,263		$	10,029		$	16,701		$	6,100
Reductions from reimbursable expenses	(75		)	(648		)	(157		)	(730		)
Amortization	455			506			699			866
Changes in expected reimbursements (to) from the FDIC for changes in expected credit losses and reimbursable expenses	(3,673		)	1,785			(2,659		)	5,073
Payments received from the FDIC	405			57			791			420
Balance at end of period	$	15,375		$	11,729		$	15,375		$	11,729

Mortgage Banking Acquisitions

On February 14, 2017, the Company acquired certain assets and assumed certain liabilities of the mortgage banking business of American Homestead Mortgage, LLC ("AHM"). The Company recorded goodwill of $999,000 on the acquisition.

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. 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

6 Months Ended

Jun. 30, 2017

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

6 Months Ended

Jun. 30, 2017

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:

	June 30, 2017
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	119,804	$	—	$	(723	)	$	119,081
U.S. Government agencies	158,162		22		(674		)	157,510
Municipal	121,610		2,774		(264		)	124,120
Corporate notes:
Financial issuers	60,340		71		(810		)	59,601
Other	1,000		—		(3		)	997
Mortgage-backed: (1)
Mortgage-backed securities	1,139,734		2,301		(31,704		)	1,110,331
Collateralized mortgage obligations	42,845		433		(319		)	42,959
Equity securities	32,642		3,028		(633		)	35,037
Total available-for-sale securities	$	1,676,137	$	8,629	$	(35,130	)	$	1,649,636
Held-to-maturity securities
U.S. Government agencies	$	585,071	$	556	$	(7,461	)	$	578,166
Municipal	208,305		2,298		(1,280		)	209,323
Total held-to-maturity securities	$	793,376	$	2,854	$	(8,741	)	$	787,489

	December 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	142,741	$	1	$	(759	)	$	141,983
U.S. Government agencies	189,540		47		(435		)	189,152
Municipal	129,446		2,969		(606		)	131,809
Corporate notes:
Financial issuers	65,260		132		(1,000		)	64,392
Other	1,000		—		(1		)	999
Mortgage-backed: (1)
Mortgage-backed securities	1,185,448		284		(54,330		)	1,131,402
Collateralized mortgage obligations	30,105		67		(490		)	29,682
Equity securities	32,608		3,429		(789		)	35,248
Total available-for-sale securities	$	1,776,148	$	6,929	$	(58,410	)	$	1,724,667
Held-to-maturity securities
U.S. Government agencies	$	433,343	$	7	$	(24,470	)	$	408,880
Municipal	202,362		647		(4,287		)	198,722
Total held-to-maturity securities	$	635,705	$	654	$	(28,757	)	$	607,602

	June 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	122,296	$	35	$	(1	)	$	122,330
U.S. Government agencies	69,678		238		—			69,916
Municipal	108,179		3,588		(127		)	111,640
Corporate notes:
Financial issuers	68,097		1,502		(1,411		)	68,188
Other	1,500		2		—			1,502
Mortgage-backed: (1)
Mortgage-backed securities	162,593		4,280		(150		)	166,723
Collateralized mortgage obligations	40,419		457		(91		)	40,785
Equity securities	51,426		5,544		(391		)	56,579
Total available-for-sale securities	$	624,188	$	15,646	$	(2,171	)	$	637,663
Held-to-maturity securities
U.S. Government agencies	$	789,482	$	11,861	$	(647	)	$	800,696
Municipal	202,729		6,967		(213		)	209,483
Total held-to-maturity securities	$	992,211	$	18,828	$	(860	)	$	1,010,179

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

The following table presents the portion of the Company’s available-for-sale 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 June 30, 2017:

	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	$	119,081	$	(723	)	$	—	$	—		$	119,081	$	(723	)
U.S. Government agencies	152,149		(674		)	—		—			152,149		(674		)
Municipal	145,960		(155		)	5,852		(109		)	151,812		(264		)
Corporate notes:
Financial issuers	—		—			35,154		(810		)	35,154		(810		)
Other	997		(3		)	—		—			997		(3		)
Mortgage-backed:
Mortgage-backed securities	932,800		(31,704		)	—		—			932,800		(31,704		)
Collateralized mortgage obligations	11,809		(122		)	7,353		(197		)	19,162		(319		)
Equity securities	10,189		(271		)	5,138		(362		)	15,327		(633		)
Total available-for-sale securities	$	1,372,985	$	(33,652	)	$	53,497	$	(1,478	)	$	1,426,482	$	(35,130	)
Held-to-maturity securities
U.S. Government agencies	$	363,692	$	(7,461	)	$	—	$	—		$	363,692	$	(7,461	)
Municipal	73,447		(1,280		)	—		—			73,447		(1,280		)
Total held-to-maturity securities	$	437,139	$	(8,741	)	$	—	$	—		$	437,139	$	(8,741	)

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

The Company does not consider securities with unrealized losses at June 30, 2017 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 June 30,						Six months ended June 30,
(Dollars in thousands)	2017			2016			2017			2016
Realized gains	$	48		$	1,487		$	48		$	4,037
Realized losses	(1		)	(47		)	(56		)	(1,272		)
Net realized gains (losses)	$	47		$	1,440		$	(8	)	$	2,765
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	47		$	1,440		$	(8	)	$	2,765
Proceeds from sales and calls of available-for-sale securities	$	3,724		$	1,068,795		$	9,729		$	1,071,996
Proceeds from calls of held-to-maturity securities	2			183,738			51,062			281,981

The amortized cost and fair value of securities as of June 30, 2017, December 31, 2016 and June 30, 2016, 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 determined to be available-for-sale are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2017				December 31, 2016				June 30, 2016
(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	$	125,706	$	125,170	$	145,353	$	145,062	$	214,917	$	215,290
Due in one to five years	289,688		289,243		321,019		320,423		113,263		113,395
Due in five to ten years	38,213		39,463		27,319		28,451		28,111		30,870
Due after ten years	7,309		7,433		34,296		34,399		13,459		14,021
Mortgage-backed	1,182,579		1,153,290		1,215,553		1,161,084		203,012		207,508
Equity securities	32,642		35,037		32,608		35,248		51,426		56,579
Total available-for-sale securities	$	1,676,137	$	1,649,636	$	1,776,148	$	1,724,667	$	624,188	$	637,663
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	32,925		32,776		29,794		29,416		27,505		27,738
Due in five to ten years	172,398		172,800		69,664		67,820		68,691		70,121
Due after ten years	588,053		581,913		536,247		510,366		896,015		912,320
Total held-to-maturity securities	$	793,376	$	787,489	$	635,705	$	607,602	$	992,211	$	1,010,179

Securities having a fair value of $1.5 billion at June 30, 2017 as well as securities having a fair value of $1.4 billion at December 31, 2016 and June 30, 2016 were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank ("FHLB") advances, securities sold under repurchase agreements and derivatives. At June 30, 2017, 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

6 Months Ended

Jun. 30, 2017

Loans and Leases Receivable Disclosure [Abstract]

Loans

Loans

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

	June 30,			December 31,			June 30,
(Dollars in thousands)	2017			2016			2016
Balance:
Commercial	$	6,406,289		$	6,005,422		$	5,144,533
Commercial real estate	6,402,494			6,196,087			5,848,334
Home equity	689,483			725,793			760,904
Residential real estate	762,810			705,221			653,664
Premium finance receivables—commercial	2,648,386			2,478,581			2,478,280
Premium finance receivables—life insurance	3,719,043			3,470,027			3,161,562
Consumer and other	114,827			122,041			127,378
Total loans, net of unearned income, excluding covered loans	$	20,743,332		$	19,703,172		$	18,174,655
Covered loans	50,119			58,145			105,248
Total loans	$	20,793,451		$	19,761,317		$	18,279,903
Mix:
Commercial	31		%	30		%	28		%
Commercial real estate	31			31			31
Home equity	3			4			4
Residential real estate	3			4			4
Premium finance receivables—commercial	13			12			14
Premium finance receivables—life insurance	18			18			17
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	100		%	100		%	99		%
Covered loans	—			—			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 $81.0 million at June 30, 2017, $69.6 million at December 31, 2016 and $64.1 million at June 30, 2016. 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 $6.5 million at June 30, 2017, $2.6 million at December 31, 2016 and $(5.0) million at June 30, 2016. The net credit balance at June 30, 2016, is primarily the result of purchase accounting adjustments related to acquisitions in 2016 and 2015.

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

Acquired Loan Information at Acquisition—PCI Loans

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

	June 30, 2017				December 31, 2016
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
PCI loans	$	443,216	$	412,519	$	509,446	$	471,786

See Note 7—Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans for further discussion regarding the allowance for loan losses associated with PCI loans at June 30, 2017.

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						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Accretable yield, beginning balance	$	45,762		$	59,218		$	49,408		$	63,902
Acquisitions	(105		)	125			426			1,266
Accretable yield amortized to interest income	(5,477		)	(5,199		)	(11,076		)	(10,656		)
Accretable yield amortized to indemnification asset/liability (1)	(361		)	(1,624		)	(715		)	(3,795		)
Reclassification from non-accretable difference (2)	3,554			2,536			6,089			6,729
Decreases in interest cash flows due to payments and changes in interest rates	2,137			574			1,378			(1,816		)
Accretable yield, ending balance (3)	$	45,510		$	55,630		$	45,510		$	55,630

(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 June 30, 2017, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $448,000. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

Accretion to interest income accounted for under ASC 310-30 totaled $5.5 million and $5.2 million in the second quarter of 2017 and 2016, respectively. For the six months ended June 30, 2017 and 2016, the Company recorded accretion to interest income of $11.1 million and $10.7 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

6 Months Ended

Jun. 30, 2017

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 June 30, 2017, December 31, 2016 and June 30, 2016:

As of June 30, 2017			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	$	8,720	$	—	$	5,917	$	12,658	$	4,067,237	$	4,094,532
Franchise	—		—		—		—		838,394		838,394
Mortgage warehouse lines of credit	—		—		—		2,361		232,282		234,643
Asset-based lending	936		—		983		7,293		862,694		871,906
Leases	535		—		—		60		356,009		356,604
PCI - commercial (1)	—		1,572		162		—		8,476		10,210
Total commercial	10,191		1,572		7,062		22,372		6,365,092		6,406,289
Commercial real estate:
Construction	2,408		—		—		—		707,179		709,587
Land	202		—		—		6,455		105,496		112,153
Office	4,806		—		607		7,725		874,546		887,684
Industrial	2,193		—		—		709		789,889		792,791
Retail	1,635		—		—		15,081		903,778		920,494
Multi-family	354		—		—		1,186		813,058		814,598
Mixed use and other	5,382		—		713		7,590		2,005,265		2,018,950
PCI - commercial real estate (1)	—		8,768		322		3,303		133,844		146,237
Total commercial real estate	16,980		8,768		1,642		42,049		6,333,055		6,402,494
Home equity	9,482		—		855		2,858		676,288		689,483
Residential real estate, including PCI	14,292		775		1,273		300		746,170		762,810
Premium finance receivables
Commercial insurance loans	10,456		5,922		4,951		11,713		2,615,344		2,648,386
Life insurance loans	—		1,046		—		16,977		3,474,686		3,492,709
PCI - life insurance loans (1)	—		—		—		—		226,334		226,334
Consumer and other, including PCI	439		125		331		515		113,417		114,827
Total loans, net of unearned income, excluding covered loans	$	61,840	$	18,208	$	16,114	$	96,784	$	20,550,386	$	20,743,332
Covered loans	1,961		2,504		113		598		44,943		50,119
Total loans, net of unearned income	$	63,801	$	20,712	$	16,227	$	97,382	$	20,595,329	$	20,793,451

(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, 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	$	13,441	$	174	$	2,341	$	11,779	$	3,716,977	$	3,744,712
Franchise	—		—		—		493		869,228		869,721
Mortgage warehouse lines of credit	—		—		—		—		204,225		204,225
Asset-based lending	1,924		—		135		1,609		871,402		875,070
Leases	510		—		—		1,331		293,073		294,914
PCI - commercial (1)	—		1,689		100		2,428		12,563		16,780
Total commercial	15,875		1,863		2,576		17,640		5,967,468		6,005,422
Commercial real estate
Construction	2,408		—		—		1,824		606,007		610,239
Land	394		—		188		—		104,219		104,801
Office	4,337		—		4,506		1,232		857,599		867,674
Industrial	7,047		—		4,516		2,436		756,602		770,601
Retail	597		—		760		3,364		907,872		912,593
Multi-family	643		—		322		1,347		805,312		807,624
Mixed use and other	6,498		—		1,186		12,632		1,931,859		1,952,175
PCI - commercial real estate (1)	—		16,188		3,775		8,888		141,529		170,380
Total commercial real estate	21,924		16,188		15,253		31,723		6,110,999		6,196,087
Home equity	9,761		—		1,630		6,515		707,887		725,793
Residential real estate, including PCI	12,749		1,309		936		8,271		681,956		705,221
Premium finance receivables
Commercial insurance loans	14,709		7,962		5,646		14,580		2,435,684		2,478,581
Life insurance loans	—		3,717		17,514		16,204		3,182,935		3,220,370
PCI - life insurance loans (1)	—		—		—		—		249,657		249,657
Consumer and other, including PCI	439		207		100		887		120,408		122,041
Total loans, net of unearned income, excluding covered loans	$	75,457	$	31,246	$	43,655	$	95,820	$	19,456,994	$	19,703,172
Covered loans	2,121		2,492		225		1,553		51,754		58,145
Total loans, net of unearned income	$	77,578	$	33,738	$	43,880	$	97,373	$	19,508,748	$	19,761,317

As of June 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	$	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

(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 a loan amount, or portion thereof, is determined to be 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 June 30, 2017, December 31, 2016 and June 30, 2016:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Loan Balances:
Commercial
Commercial, industrial and other	$	4,085,812	$	3,731,097	$	3,440,161	$	8,720	$	13,615	$	16,414	$	4,094,532	$	3,744,712	$	3,456,575
Franchise	838,394		869,721		289,905		—		—		—		838,394		869,721		289,905
Mortgage warehouse lines of credit	234,643		204,225		270,586		—		—		—		234,643		204,225		270,586
Asset-based lending	870,970		873,146		842,432		936		1,924		235		871,906		875,070		842,667
Leases	356,069		294,404		267,687		535		510		387		356,604		294,914		268,074
PCI - commercial (1)	10,210		16,780		16,726		—		—		—		10,210		16,780		16,726
Total commercial	6,396,098		5,989,373		5,127,497		10,191		16,049		17,036		6,406,289		6,005,422		5,144,533
Commercial real estate
Construction	707,179		607,831		404,232		2,408		2,408		673		709,587		610,239		404,905
Land	111,951		104,407		104,156		202		394		1,725		112,153		104,801		105,881
Office	882,878		863,337		903,179		4,806		4,337		6,274		887,684		867,674		909,453
Industrial	790,598		763,554		756,474		2,193		7,047		10,295		792,791		770,601		766,769
Retail	918,859		911,996		896,930		1,635		597		916		920,494		912,593		897,846
Multi-family	814,244		806,981		778,427		354		643		90		814,598		807,624		778,517
Mixed use and other	2,013,568		1,945,677		1,808,223		5,382		6,498		4,442		2,018,950		1,952,175		1,812,665
PCI - commercial real estate(1)	146,237		170,380		172,298		—		—		—		146,237		170,380		172,298
Total commercial real estate	6,385,514		6,174,163		5,823,919		16,980		21,924		24,415		6,402,494		6,196,087		5,848,334
Home equity	680,001		716,032		752,342		9,482		9,761		8,562		689,483		725,793		760,904
Residential real estate, including PCI	748,339		692,472		641,251		14,471		12,749		12,413		762,810		705,221		653,664
Premium finance receivables
Commercial insurance loans	2,632,008		2,455,910		2,453,225		16,378		22,671		25,055		2,648,386		2,478,581		2,478,280
Life insurance loans	3,491,663		3,216,653		2,869,960		1,046		3,717		—		3,492,709		3,220,370		2,869,960
PCI - life insurance loans (1)	226,334		249,657		291,602		—		—		—		226,334		249,657		291,602
Consumer and other, including PCI	114,325		121,458		126,740		502		583		638		114,827		122,041		127,378
Total loans, net of unearned income, excluding covered loans	$	20,674,282	$	19,615,718	$	18,086,536	$	69,050	$	87,454	$	88,119	$	20,743,332	$	19,703,172	$	18,174,655

(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 six months endedJune 30, 2017 and 2016 is as follows:

Three months ended June 30, 2017				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	46,582		$	52,633		$	12,203		$	5,530		$	7,559		$	1,312		$	125,819
Other adjustments	(2		)	(47		)	—			(3		)	22			—			(30		)
Reclassification from allowance for unfunded lending-related commitments	92			14			—			—			—			—			106
Charge-offs	(913		)	(1,985		)	(1,631		)	(146		)	(1,878		)	(175		)	(6,728		)
Recoveries	561			276			144			54			404			33			1,472
Provision for credit losses	6,038			1,448			418			708			245			95			8,952
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296
Individually evaluated for impairment	$	2,528		$	1,473		$	1,296		$	764		$	—		$	91		$	6,152
Collectively evaluated for impairment	49,692			51,952			9,838			5,306			6,352			1,174			124,314
Loans acquired with deteriorated credit quality	638			119			—			73			—			—			830
Loans at period end
Individually evaluated for impairment	$	14,469		$	34,690		$	9,633		$	20,859		$	—		$	421		$	80,072
Collectively evaluated for impairment	6,381,610			6,221,567			679,850			708,042			6,141,095			113,319			20,245,483
Loans acquired with deteriorated credit quality	10,210			146,237			—			3,736			226,334			1,087			387,604
Loans held at fair value	—			—			—			30,173			—			—			30,173

Three months ended June 30, 2016	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Other adjustments	(59		)	(70		)	—			(9		)	4			—			(134		)
Reclassification from allowance for unfunded lending-related commitments	—			(40		)	—			—			—			—			(40		)
Charge-offs	(721		)	(502		)	(2,046		)	(693		)	(1,911		)	(224		)	(6,097		)
Recoveries	121			296			71			31			633			35			1,187
Provision for credit losses	3,878			1,877			443			912			1,883			276			9,269
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426
Individually evaluated for impairment	$	3,417		$	2,121		$	477		$	625		$	—		$	5		$	6,645
Collectively evaluated for impairment	37,571			45,736			10,906			4,720			7,814			1,271			108,018
Loans acquired with deteriorated credit quality	666			37			—			60			—			—			763
Loans at period end
Individually evaluated for impairment	$	21,173		$	49,284		$	8,562		$	17,281		$	—		$	536		$	96,836
Collectively evaluated for impairment	5,106,634			5,626,752			752,342			615,831			5,348,240			126,842			17,576,641
Loans acquired with deteriorated credit quality	16,726			172,298			—			4,258			291,602			—			484,884
Loans held at fair value	—			—			—			16,294			—			—			16,294

Six months ended June 30, 2017				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	$	44,493		$	51,422		$	11,774		$	5,714		$	7,625		$	1,263		$	122,291
Other adjustments	(21		)	(83		)	—			(7		)	25			—			(86		)
Reclassification from allowance for unfunded lending-related commitments	—			(32		)	—			—			—			—			(32		)
Charge-offs	(1,554		)	(2,246		)	(2,256		)	(475		)	(3,305		)	(309		)	(10,145		)
Recoveries	834			830			209			232			1,016			174			3,295
Provision for credit losses	8,606			2,448			1,407			679			991			137			14,268
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296

Six months ended June 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	(68		)	(146		)	—			(39		)	41			—			(212		)
Reclassification from allowance for unfunded lending-related commitments	—			(121		)	—			—			—			—			(121		)
Charge-offs	(1,392		)	(1,173		)	(3,098		)	(1,186		)	(4,391		)	(331		)	(11,571		)
Recoveries	750			665			119			143			1,420			71			3,168
Provision for credit losses	6,229			3,841			2,350			1,753			3,511			8			17,692
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426

A summary of activity in the allowance for covered loan losses for the three and six months endedJune 30, 2017 and 2016 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2017			2016			2017			2016
Balance at beginning of period	$	1,319		$	2,507		$	1,322		$	3,026
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(303		)	(702		)	(838		)	(2,648		)
Benefit attributable to FDIC loss share agreements	242			562			670			2,119
Net provision for covered loan losses	(61		)	(140		)	(168		)	(529		)
Increase/decrease in FDIC indemnification liability/asset	(242		)	(562		)	(670		)	(2,119		)
Loans charged-off	(120		)	(143		)	(336		)	(373		)
Recoveries of loans charged-off	178			750			926			2,407
Net recoveries	58			607			590			2,034
Balance at end of period	$	1,074		$	2,412		$	1,074		$	2,412

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:

	June 30,		December 31,		June 30,
(Dollars in thousands)	2017		2016		2016
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	29,037	$	33,146	$	42,968
Impaired loans with no allowance for loan loss required	50,281		57,370		53,008
Total impaired loans (2)	$	79,318	$	90,516	$	95,976
Allowance for loan losses related to impaired loans	$	5,633	$	6,377	$	6,611
TDRs	$	33,091	$	41,708	$	49,635

(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 Six Months Ended
	As of June 30, 2017						June 30, 2017
	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	$	2,969	$	3,006	$	1,499	$	3,061	$	83
Asset-based lending	511		512		293		704		21
Leases	2,504		2,508		235		2,578		62
Commercial real estate
Construction	7,632		7,632		957		7,665		165
Land	1,750		1,750		7		1,750		32
Office	1,314		1,418		32		1,318		44
Industrial	—		—		—		—		—
Retail	1,582		1,631		130		1,596		40
Multi-family	1,513		1,513		27		1,518		28
Mixed use and other	1,455		1,531		302		1,478		35
Home equity	1,901		1,950		1,296		1,920		35
Residential real estate	5,815		6,090		764		5,731		118
Consumer and other	91		93		91		96		2
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	6,815	$	7,785	$	—	$	7,285	$	213
Asset-based lending	425		425		—		764		16
Leases	852		852		—		879		26
Commercial real estate
Construction	1,504		1,504		—		1,534		33
Land	2,375		2,472		—		2,380		56
Office	3,973		5,074		—		4,076		131
Industrial	2,193		3,622		—		4,328		190
Retail	1,188		1,273		—		1,188		51
Multi-family	89		174		—		89		4
Mixed use and other	7,761		9,299		—		8,494		239
Home equity	7,732		11,260		—		8,906		258
Residential real estate	15,044		17,068		—		15,203		368
Consumer and other	330		434		—		333		11
Total impaired loans, net of unearned income	$	79,318	$	90,876	$	5,633	$	84,874	$	2,261

							For the Twelve Months Ended
	As of December 31, 2016						December 31, 2016
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	2,601	$	2,617	$	1,079	$	2,649	$	134
Asset-based lending	233		235		26		235		10
Leases	2,441		2,443		107		2,561		128
Commercial real estate
Construction	5,302		5,302		86		5,368		164
Land	1,283		1,283		1		1,303		47
Office	2,687		2,697		324		2,797		137
Industrial	5,207		5,843		1,810		7,804		421
Retail	1,750		1,834		170		2,039		101
Multi-family	—		—		—		—		—
Mixed use and other	3,812		4,010		592		4,038		195
Home equity	1,961		1,873		1,233		1,969		75
Residential real estate	5,752		6,327		849		5,816		261
Consumer and other	117		121		100		131		7
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,534	$	14,704	$	—	$	14,944	$	948
Asset-based lending	1,691		2,550		—		8,467		377
Leases	873		873		—		939		56
Commercial real estate
Construction	4,003		4,003		—		4,161		81
Land	3,034		3,503		—		3,371		142
Office	3,994		5,921		—		4,002		323
Industrial	2,129		2,436		—		2,828		274
Retail	—		—		—		—		—
Multi-family	1,903		1,987		—		1,825		84
Mixed use and other	6,815		7,388		—		6,912		397
Home equity	8,033		10,483		—		8,830		475
Residential real estate	11,983		14,124		—		12,041		622
Consumer and other	378		489		—		393		26
Total impaired loans, net of unearned income	$	90,516	$	103,046	$	6,377	$	105,423	$	5,485

							For the Six Months Ended
	As of June 30, 2016						June 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	$	10,253	$	12,866	$	3,280	$	10,172	$	375
Asset-based lending	—		—		—		—		—
Leases	387		387		128		390		10
Commercial real estate
Construction	—		—		—		—		—
Land	4,538		4,538		18		4,592		83
Office	2,401		3,059		176		2,427		70
Industrial	7,369		7,773		1,514		7,552		195
Retail	7,007		7,024		264		7,064		95
Multi-family	1,274		1,274		15		1,066		18
Mixed use and other	3,040		3,162		109		3,063		73
Home equity	1,349		1,511		477		1,443		30
Residential real estate	5,230		5,840		625		5,289		123
Consumer and other	120		148		5		123		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	10,092	$	10,950	$	—	$	10,045	$	328
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	2,677		2,677		—		2,693		77
Land	2,979		7,492		—		3,001		254
Office	6,967		8,715		—		7,107		227
Industrial	3,966		5,093		—		4,326		168
Retail	1,122		1,122		—		1,129		27
Multi-family	90		174		—		119		3
Mixed use and other	5,435		5,960		—		5,498		159
Home equity	7,213		9,674		—		8,356		219
Residential real estate	12,051		14,180		—		11,997		308
Consumer and other	416		494		—		427		14
Total impaired loans, net of unearned income	$	95,976	$	114,113	$	6,611	$	97,879	$	2,860

TDRs

At June 30, 2017, the Company had $33.1 million in loans modified in TDRs. The $33.1 million in TDRs represents 77 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 June 30, 2017 and approximately $953,000 of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2017 and 2016, the Company recorded $49,000 and $135,000, respectively, of interest income, which was reflected as a decrease in impairment. For the six months endedJune 30, 2017 and 2016, the Company recorded $104,000 and $225,000, respectively, of interest income, which was reflected as a decrease in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2017, the Company had $8.4 million of foreclosed residential real estate properties included within OREO. Furthermore, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $12.4 million at June 30, 2017.

The tables below present a summary of the post-modification balance of loans restructured during the three and six months endedJune 30, 2017 and 2016, respectively, which represent TDRs:

Three months ended June 30, 2017 (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	4	2,210		4	2,210		3	2,161		—	—		—	—
Total loans	4	$	2,210	4	$	2,210	3	$	2,161	—	$	—	—	$	—

Three months ended June 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	$	275	1	$	275	—	$	—	—	$	—	1	$	275
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	380		1	380		1	380		1	380		—	—
Total loans	2	$	655	2	$	655	1	$	380	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.

During the three months ended June 30, 2017, four loans totaling $2.2 million were determined to be TDRs, compared to two loans totaling $655,000 during the three months ended June 30, 2016. Of these loans extended at below market terms, the weighted average extension had a term of approximately 54 months during the quarter ended June 30, 2017 compared to 36 months for the quarter ended June 30, 2016. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 195 basis points and 275 basis points during the three months ended June 30, 2017 and 2016, respectively. Interest-only payments terms were approximately six months during the three months ended June 30, 2016. Additionally, no principal balances were forgiven in the second quarter of 2017 compared to $300,000 of principal balance forgiven in the second quarter of 2016.

Six months ended June 30, 2017 (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	$	95	1	$	95	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	1	1,245		1	1,245		—	—		—	—		—	—
Residential real estate and other	6	2,383		6	2,383		5	2,334		—	—		—	—
Total loans	8	$	3,723	8	$	3,723	5	$	2,334	—	$	—	—	$	—

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

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

Six months ended June 30, 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	2	$	317	2	$	317	—	$	—	—	$	—	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	2	540		1	380		2	540		1	380		—	—
Total loans	13	$	9,378	12	$	9,218	5	$	7,736	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.

During the six months ended June 30, 2017, eight loans totaling $3.7 million were determined to be TDRs, compared to 13 loans totaling $9.4 million in the same period of 2016. Of these loans extended at below market terms, the weighted average extension had a term of approximately 36 months during the six months ended June 30, 2017 compared to six months for the six months ended June 30, 2016. Further, the weighted average decrease in the stated interest rate for loans with a reduction of interest rate during the period was approximately 184 basis points and 30 basis points for the year-to-date periods June 30, 2017 and 2016, respectively. Interest-only payment terms were approximately six months during the six months ended June 30, 2016. Additionally, no principal balances were forgiven in the first six months of 2017 compared to $300,000 of principal balance forgiven during the same period of 2016.

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2017 and 2016, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2017			Three Months Ended June 30, 2017			Six Months Ended June 30, 2017
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	2	$	123	1	$	28	1	$	28
Leases	2	2,949		—	—		—	—
Commercial real estate
Office	—	—		—	—		—	—
Industrial	—	—		—	—		—	—
Mixed use and other	1	1,245		—	—		—	—
Residential real estate and other	11	2,925		1	232		1	232
Total loans	16	$	7,242	2	$	260	2	$	260

(Dollars in thousands)	As of June 30, 2016			Three Months Ended June 30, 2016			Six Months Ended June 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	2	$	317	—	$	—	—	$	—
Leases	—	—		—	—		—	—
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	762		1	222		1	222
Total loans	16	$	9,801	6	$	1,413	8	$	1,614

(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

6 Months Ended

Jun. 30, 2017

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, 2017		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2017
Community banking	$	427,781	$	999	$	—	$	(152	)	$	428,628
Specialty finance	38,692		—		—		826			39,518
Wealth management	32,114		—		—		—			32,114
Total	$	498,587	$	999	$	—	$	674		$	500,260

The community banking segment's goodwill increased $847,000 in the first six months of 2017 primarily as a result of the acquisition of AHM. The specialty finance segment's goodwill increased $826,000 in the first six months of 2017 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

At June 30, 2017, the Company utilized a quantitative approach for its annual goodwill impairment test of the community banking segment and determined that no impairment existed at that time. At December 31, 2016, the Company utilized a quantitative approach for its annual goodwill impairment tests of the specialty finance and wealth management segments and determined that no impairment existed at that time. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of June 30, 2017, the Company identified no such indicators of goodwill impairment within the specialty finance and wealth management segments.

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2017 is as follows:

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	37,272		$	37,272		$	34,998
Accumulated amortization	(23,632		)	(21,614		)	(19,654		)
Net carrying amount	$	13,640		$	15,658		$	15,344
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,221		)	(1,159		)	(1,100		)
Net carrying amount	$	579		$	641		$	700
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,613		)	(2,388		)	(2,163		)
Net carrying amount	$	5,327		$	5,552		$	5,777
Total other intangible assets, net	$	19,546		$	21,851		$	21,821

Estimated amortization
Actual in six months ended June 30, 2017	$	2,305
Estimated remaining in 2017	2,086
Estimated—2018	3,778
Estimated—2019	3,206
Estimated—2020	2,580
Estimated—2021	2,039

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 $2.3 million and $2.5 million for the six months ended June 30, 2017 and 2016, respectively.

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Deposits

6 Months Ended

Jun. 30, 2017

Deposits [Abstract]

Deposits

Deposits

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

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Balance:
Non-interest bearing	$	6,294,052		$	5,927,377		$	5,367,672
NOW and interest bearing demand deposits	2,459,238			2,624,442			2,450,710
Wealth management deposits	2,464,162			2,209,617			1,904,121
Money market	4,449,385			4,441,811			4,384,134
Savings	2,419,463			2,180,482			1,851,863
Time certificates of deposit	4,519,392			4,274,903			4,083,250
Total deposits	$	22,605,692		$	21,658,632		$	20,041,750
Mix:
Non-interest bearing	28		%	27		%	27		%
NOW and interest bearing demand deposits	11			12			12
Wealth management deposits	11			10			10
Money market	19			21			22
Savings	11			10			9
Time certificates of deposit	20			20			20
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, LLC ("WHI"), trust and asset management customers of Company and brokerage customers from unaffiliated companies.

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FHLB Advances, Other Borrowings and Subordinated Notes

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

FHLB Advances, Other Borrowings and Subordinated Notes

FHLB Advances, Other Borrowings and Subordinated Notes

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

(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016
FHLB advances	$	318,270	$	153,831	$	588,055
Other borrowings:
Notes payable	44,959		52,445		59,937
Short-term borrowings	46,280		61,809		38,798
Other	49,765		18,154		18,564
Secured borrowings	136,706		130,078		135,312
Total other borrowings	277,710		262,486		252,611
Subordinated notes	139,029		138,971		138,915
Total FHLB advances, other borrowings and subordinated notes	$	735,009	$	555,288	$	979,581

FHLB Advances

FHLB advances consist of obligations of the banks and are collateralized by qualifying commercial and 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 June 30, 2017, notes payable represented a $45.0 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 June 30, 2017, the Company had a balance of $45.0 million compared to $52.4 million at December 31, 2016 and $59.9 million at June 30, 2016 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 June 30, 2017, December 31, 2016 and June 30, 2016, 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. In December 2016, the Company again amended the Credit Agreement, effectively extending the maturity date on the Revolving Credit Facility from December 12, 2016 to December 11, 2017.

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 June 30, 2017, 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 $46.3 million at June 30, 2017 compared to $61.8 million at December 31, 2016 and $38.8 million at June 30, 2016. At June 30, 2017, December 31, 2016 and June 30, 2016, securities sold under repurchase agreements represent $46.3 million, $61.8 million and $38.8 million, respectively, of customer sweep accounts in connection with master repurchase agreements at the banks. The Company records securities sold under repurchase agreements at their gross value and does not offset positions on the Consolidated Statements of Condition. As of June 30, 2017, the Company had pledged securities related to its customer balances in sweep accounts of $69.4 million. Securities pledged for customer balances in sweep accounts and short-term borrowings from brokers are maintained under the Company’s control and consist of U.S. Government agency and mortgage-backed 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 June 30, 2017 disaggregated by investment category and maturity of the related customer sweep account, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
Mortgage-backed securities	$	44,372
Held-to-maturity securities pledged
U.S. Government agencies	25,000
Total collateral pledged	$	69,372
Excess collateral	23,092
Securities sold under repurchase agreements	$	46,280

Other Borrowings

Other borrowings at June 30, 2017 represent a fixed-rate promissory note issued by the Company in June 2017 ("Fixed-Rate Promissory Note") related to and secured by two office buildings owned by the Company, and non-recourse notes issued by the Company to other banks related to certain capital leases. At June 30, 2017, the Fixed-Rate Promissory Note had a balance of $49.5 million. Under the Fixed-Rate Promissory Note, the Company will make monthly principal payments and pay interest at a fixed rate of 3.36% until maturity on June 30, 2022. Under a previous fixed-rate promissory note with an unrelated creditor related to and secured by an office building owned by the Company, other borrowings totaled $17.7 million and $18.0 million at December 31, 2016 and June 30, 2016, respectively. In June 2017, this previous fixed-rate promissory note was paid-off upon the Company's issuance of the Fixed-Rate Promissory Note. At June 30, 2017, the non-recourse notes related to certain capital leases totaled $300,000 compared to $447,000 and $591,000 at December 31, 2016 and June 30, 2016, respectively.

Secured Borrowings

Secured borrowings at June 30, 2017 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 June 30, 2017, the translated balance of the secured borrowing totaled $123.4 million compared to $119.0 million at December 31, 2016 and $123.7 million at June 30, 2016. Additionally, the interest rate under the Receivables Purchase Agreement at June 30, 2017 was 1.6431%. The remaining $13.3 million within secured borrowings at June 30, 2017 represents other sold interests in certain loans by the Company that were not considered sales and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the various unrelated third parties.

Subordinated Notes

At June 30, 2017, the Company had outstanding subordinated notes totaling $139.0 million compared to $139.0 million and $138.9 million outstanding at December 31, 2016 and June 30, 2016, 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

6 Months Ended

Jun. 30, 2017

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Junior Subordinated Debentures

Junior Subordinated Debentures

As of June 30, 2017, 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 June 30, 2017. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2017		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	4.41	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	4.10	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.90	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	3.20	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.75	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.88	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	4.30	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	3.00	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.87	%	06/2007	09/2037	06/2012
Total					$	253,566		3.45	%

The junior subordinated debentures totaled $253.6 million at June 30, 2017, December 31, 2016 and June 30, 2016.

The interest rates on the variable rate junior subordinated debentures are based on the three-month LIBOR rate and reset on a quarterly basis. At June 30, 2017, the weighted average contractual interest rate on the junior subordinated debentures was 3.45%. 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 June 30, 2017, was 3.59%. 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. 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

6 Months Ended

Jun. 30, 2017

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 2016 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

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

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	166,329		$	142,251		$	24,078		17	%
Specialty Finance	28,558			24,352			4,206			17
Wealth Management	4,919			4,383			536			12
Total Operating Segments	199,806			170,986			28,820			17
Intersegment Eliminations	4,603			4,284			319			7
Consolidated net interest income	$	204,409		$	175,270		$	29,139		17	%
Non-interest income:
Community Banking	$	65,007		$	60,813		$	4,194		7	%
Specialty Finance	13,721			12,482			1,239			10
Wealth Management	20,573			19,863			710			4
Total Operating Segments	99,301			93,158			6,143			7
Intersegment Eliminations	(9,329		)	(8,359		)	(970		)	(12	)
Consolidated non-interest income	$	89,972		$	84,799		$	5,173		6	%
Net revenue:
Community Banking	$	231,336		$	203,064		$	28,272		14	%
Specialty Finance	42,279			36,834			5,445			15
Wealth Management	25,492			24,246			1,246			5
Total Operating Segments	299,107			264,144			34,963			13
Intersegment Eliminations	(4,726		)	(4,075		)	(651		)	(16	)
Consolidated net revenue	$	294,381		$	260,069		$	34,312		13	%
Segment profit:
Community Banking	$	46,026		$	34,576		$	11,450		33	%
Specialty Finance	14,849			12,044			2,805			23
Wealth Management	4,022			3,421			601			18
Consolidated net income	$	64,897		$	50,041		$	14,856		30	%
Segment assets:
Community Banking	$	22,032,302		$	20,190,707		$	1,841,595		9	%
Specialty Finance	4,255,109			3,645,077			610,032			17
Wealth Management	641,854			584,832			57,022			10
Consolidated total assets	$	26,929,265		$	24,420,616		$	2,508,649		10	%

	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	322,609		$	283,949		$	38,660		14	%
Specialty Finance	55,370			45,532			9,838			22
Wealth Management	9,975			8,866			1,109			13
Total Operating Segments	387,954			338,347			49,607			15
Intersegment Eliminations	9,035			8,432			603			7
Consolidated net interest income	$	396,989		$	346,779		$	50,210		14	%
Non-interest income:
Community Banking	$	107,723		$	106,480		$	1,243		1	%
Specialty Finance	27,877			24,885			2,992			12
Wealth Management	41,375			38,615			2,760			7
Total Operating Segments	176,975			169,980			6,995			4
Intersegment Eliminations	(18,238		)	(16,429		)	(1,809		)	(11	)
Consolidated non-interest income	$	158,737		$	153,551		$	5,186		3	%
Net revenue:
Community Banking	$	430,332		$	390,429		$	39,903		10	%
Specialty Finance	83,247			70,417			12,830			18
Wealth Management	51,350			47,481			3,869			8
Total Operating Segments	564,929			508,327			56,602			11
Intersegment Eliminations	(9,203		)	(7,997		)	(1,206		)	(15	)
Consolidated net revenue	$	555,726		$	500,330		$	55,396		11	%
Segment profit:
Community Banking	$	83,703		$	69,333		$	14,370		21	%
Specialty Finance	30,947			23,516			7,431			32
Wealth Management	8,625			6,303			2,322			37
Consolidated net income	$	123,275		$	99,152		$	24,123		24	%

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2017

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) as 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 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 by comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2017, December 31, 2016 and June 30, 2016:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	8,644	$	8,011	$	12	$	—	$	—	$	1,577
Interest rate derivatives designated as Fair Value Hedges	2,074		2,228		—		26		—		999
Total derivatives designated as hedging instruments under ASC 815	$	10,718	$	10,239	$	12	$	26	$	—	$	2,576
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	35,929	$	38,974	$	89,024	$	35,317	$	37,665	$	88,316
Interest rate lock commitments	2,875		4,265		11,435		182		1,325		2,973
Forward commitments to sell mortgage loans	78		2,037		—		1,961		—		6,496
Foreign exchange contracts	103		879		581		165		849		551
Total derivatives not designated as hedging instruments under ASC 815	$	38,985	$	46,155	$	101,040	$	37,625	$	39,839	$	98,336
Total Derivatives	$	49,703	$	56,394	$	101,052	$	37,651	$	39,839	$	100,912

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 June 30, 2017, the Company had four interest rate swap derivatives designated as cash flow hedges of variable rate deposits. The interest rate swap derivatives had notional amounts of $200.0 million, $250.0 million, $275.0 million and $200.0 million and mature in June 2019, July 2019, August 2019 and June 2020, respectively. Additionally, as of June 30, 2017, the Company had two interest rate caps designated as hedges of the variable cash outflows associated with interest expense on the Company’s junior subordinated debentures. These cap derivatives 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 six months ended June 30, 2017 or June 30, 2016. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

The table below provides details on each of these cash flow hedges as of June 30, 2017:

	June 30, 2017
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
June 2019	$	200,000	$	96
July 2019	250,000		3,750
August 2019	275,000		4,671
June 2020	200,000		122
Total Interest Rate Swaps	$	925,000	$	8,639
Interest Rate Caps:
September 2017	$	50,000	$	—
September 2017	40,000		5
Total Interest Rate Caps	$	90,000	$	5
Total Cash Flow Hedges	$	1,015,000	$	8,644

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

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016
Unrealized gain (loss) at beginning of period	$	8,559		$	(3,051	)	$	6,944	$	(3,529	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	821			832			1,037		1,555
Amount of (loss) gain recognized in other comprehensive income	(1,131		)	(1,355		)	268		(1,600		)
Unrealized gain (loss) at end of period	$	8,249		$	(3,574	)	$	8,249	$	(3,574	)

As of June 30, 2017, the Company estimates that during the next twelve months, $2.3 million will be reclassified from accumulated other comprehensive gain as an increase to interest expense.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of June 30, 2017, the Company has eleven interest rate swaps with an aggregate notional amount of $121.1 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 $40,000 and $17,000 in other income related to hedge ineffectiveness for the three months ended June 30, 2017 and 2016, respectively. On a year-to-date basis, the Company recognized a net gain of $29,000 and a net loss of $22,000 in other income related to hedge ineffectiveness for the six months ended June 30, 2017 and 2016, respectively.

The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2017 and 2016:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Three Months Ended						Amount of Gain Recognized in Income on Hedged Item Three Months Ended				Income Statement Gain due to Hedge Ineffectiveness Three Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(333	)	$	(329	)	$	373	$	346	$	40	$	17

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Six Months Ended						Amount of Gain Recognized in Income on Hedged Item Six Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Six Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(181	)	$	(883	)	$	210	$	861	$	29	$	(22	)

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 June 30, 2017, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $4.8 billion (all interest rate swaps and caps with customers and third parties) related to this program. These interest rate derivatives had maturity dates ranging from July 2017 to February 2045.

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of our residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At June 30, 2017, the Company had forward commitments to sell mortgage loans with an aggregate notional amount of approximately $824.3 million and interest rate lock commitments with an aggregate notional amount of approximately $446.2 million. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

Foreign Currency Derivatives—These derivatives include foreign currency contracts used to manage the foreign exchange risk associated with foreign currency denominated assets and transactions. Foreign currency contracts, which include spot and forward contracts, represent agreements to exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. As a result of fluctuations in foreign currencies, the U.S. dollar-equivalent value of the foreign currency denominated assets or forecasted transactions increase or decrease. Gains or losses on the derivative instruments related to these foreign currency denominated assets or forecasted transactions are expected to substantially offset this variability. As of June 30, 2017 the Company held foreign currency derivatives with an aggregate notional amount of approximately $39.7 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 June 30, 2017, December 31, 2016 or June 30, 2016.

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

(Dollars in thousands)		Three Months Ended						Six Months Ended
Derivative	Location in income statement	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Interest rate swaps and caps	Trading losses, net	$	(365	)	$	(432	)	$	(668	)	$	(356	)
Mortgage banking derivatives	Mortgage banking revenue	(48		)	(2,707		)	690			(843		)
Covered call options	Fees from covered call options	890			4,649			1,649			6,361
Foreign exchange contracts	Trading losses, net	(64		)	(173		)	(92		)	(236		)

Credit Risk

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

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. As of June 30, 2017, 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 $11.3 million. If the Company had breached any of these provisions and the derivatives 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)	June 30, 2017			December 31, 2016			June 30, 2016			June 30, 2017			December 31, 2016			June 30, 2016
Gross Amounts Recognized	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(15,828		)	(14,441		)	(161		)	(15,828		)	(14,441		)	(161		)
Collateral Posted (1)	(3,150		)	(8,530		)	—			(19,515		)	(12,400		)	(90,731		)
Net Credit Exposure	$	27,669		$	26,242		$	88,875		$	—		$	10,824		$	—

(1) As of June 30, 2017 and June 30, 2016, the Company posted collateral of $21.0 million and $94.2 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

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Fair Values of Assets and Liabilities

Fair Values of Assets and Liabilities

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

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

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

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

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

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

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

At June 30, 2017, the Company classified $77.3 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 also classified $4.1 million of U.S. government agencies as Level 3 at June 30, 2017. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2017, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2017 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. To determine the rating for the U.S. government agency securities, the Investment Operations Department assigned a AAA rating as it is guaranteed by the U.S. government.

At June 30, 2017 and December 31, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at June 30, 2016. At June 30, 2016, 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 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.

Loans held-for-investment—The fair value for loans in which the Company elected the fair value option is estimated by discounting future scheduled cash flows for the specific loan through maturity, adjusted for estimated credit losses and prepayments. At June 30, 2017, the Company classified $30.2 million of loans held-for-investment as Level 3. The weighted average discount rate used as an input to value these loans at June 30, 2017 was 3.70% with discount rates applied ranging from 3%-4%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. As noted above, the fair value estimate also includes assumptions of prepayment speeds and credit losses. The Company included a prepayments speed assumption of 9.42% at June 30, 2017. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation. Additionally, the weighted average credit loss rate used as an input to value the specific loans was 0.89% with credit loss rates ranging from 0%-3% at June 30, 2017.

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 June 30, 2017, the Company classified $27.3 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at June 30, 2017 was 9.81% with discount rates applied ranging from 9%-16%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. The fair value of MSRs was also estimated based on other assumptions including prepayment speeds and the cost to service. Prepayment speeds used as an input to value the MSRs at June 30, 2017 ranged from 0%-34% or a weighted average prepayment speed of 9.64%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $65 and $422, respectively, per loan. Prepayment speeds and the cost to service are both inversely related to the fair value of MSRs as an increase in prepayment speeds or the cost to service 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.

At June 30, 2017, the Company classified $1.0 million of derivative assets related to interest rate locks as Level 3. The fair value of interest rate locks is based on prices obtained for loans with similar characteristics from third parties, adjusted for the pull-through rate, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund. The weighted-average pull-through rate at June 30, 2017 was 89.79% with pull-through rates applied ranging from 40% to 100%. Pull-through rates are directly related to the fair value of interest rate locks as an increase in the pull-through rate results in an increased valuation

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

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

	June 30, 2017
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	119,081	$	—	$	119,081	$	—
U.S. Government agencies	157,510		—		153,400		4,110
Municipal	124,120		—		46,779		77,341
Corporate notes	60,598		—		60,598		—
Mortgage-backed	1,153,290		—		1,153,290		—
Equity securities	35,037		—		35,037		—
Trading account securities	1,987		—		1,987		—
Mortgage loans held-for-sale	382,837		—		382,837		—
Loans held-for-investment	30,173		—		—		30,173
MSRs	27,307		—		—		27,307
Nonqualified deferred compensation assets	10,556		—		10,556		—
Derivative assets	49,703		—		48,656		1,047
Total	$	2,152,199	$	—	$	2,012,221	$	139,978
Derivative liabilities	$	37,651	$	—	$	37,651	$	—

	December 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	141,983	$	—	$	141,983	$	—
U.S. Government agencies	189,152		—		189,152		—
Municipal	131,809		—		52,183		79,626
Corporate notes	65,391		—		65,391		—
Mortgage-backed	1,161,084		—		1,161,084		—
Equity securities	35,248		—		35,248		—
Trading account securities	1,989		—		1,989		—
Mortgage loans held-for-sale	418,374		—		418,374		—
Loans held-for-investment	22,137		—		—		22,137
MSRs	19,103		—		—		19,103
Nonqualified deferred compensation assets	9,228		—		9,228		—
Derivative assets	56,394		—		54,103		2,291
Total	$	2,251,892	$	—	$	2,128,735	$	123,157
Derivative liabilities	$	39,839	$	—	$	39,839	$	—

	June 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	122,330	$	—	$	122,330	$	—
U.S. Government agencies	69,916		—		69,916		—
Municipal	111,640		—		41,828		69,812
Corporate notes	69,690		—		69,690		—
Mortgage-backed	207,508		—		207,508		—
Equity securities	56,579		—		31,392		25,187
Trading account securities	3,613		—		3,613		—
Mortgage loans held-for-sale	554,256		—		554,256		—
Loans held-for-investment	16,294		—		16,294		—
MSRs	13,382		—		—		13,382
Nonqualified deferred compensation assets	9,076		—		9,076		—
Derivative assets	101,052		—		91,321		9,731
Total	$	1,335,336	$	—	$	1,217,224	$	118,112
Derivative liabilities	$	100,912	$	—	$	100,912	$	—

The aggregate remaining contractual principal balance outstanding as of June 30, 2017, December 31, 2016 and June 30, 2016 for mortgage loans held-for-sale measured at fair value under ASC 825 was $368.8 million, $414.4 million and $529.0 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $382.8 million, $418.4 million and $554.3 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 as of June 30, 2017, December 31, 2016 and June 30, 2016.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2017 and 2016 are summarized as follows:

				Equity securities		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2017	$	79,745		$	—	$	4,283		$	28,548		$	21,596	$	3,582
Total net gains (losses) included in:
Net income (1)	—			—		—			1,304			5,711		(2,535		)
Other comprehensive income (loss)	2,572			—		(173		)	—			—		—
Purchases	3,293			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(8,269		)	—		—			(2,159		)	—		—
Net transfers into/(out of) Level 3	—			—		—			2,480			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

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

				Equity securities		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2017	$	79,626		$	—	$	—		$	22,137		$	19,103	$	2,291
Total net gains (losses) included in:
Net income (1)	—			—		—			1,192			8,204		(1,244		)
Other comprehensive income (loss)	3,029			—		(173		)	—			—		—
Purchases	10,879			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(16,193		)	—		—			(5,491		)	—		—
Net transfers into/(out of) Level 3	—			—		4,283			12,335			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

				Equity securities		U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2016	$	70,242		$	24,054	$	—	$	—	$	10,128	$	9,917
Total net gains (losses) included in:
Net income (1)	—			—		—		—		3,254		(186		)
Other comprehensive income	113			1,133		—		—		—		—
Purchases	1,003			—		—		—		—		—
Issuances	—			—		—		—		—		—
Sales	—			—		—		—		—		—
Settlements	(1,546		)	—		—		—		—		—
Net transfers into/(out of) Level 3	—			—		—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187	$	—	$	—	$	13,382	$	9,731

				Equity securities			U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	—	$	—	$	9,092	$	7,021
Total net gains (losses) included in:
Net income (1)	—			—			—		—		4,290		2,710
Other comprehensive income (loss)	100			(12		)	—		—		—		—
Purchases	4,274			—			—		—		—		—
Issuances	—			—			—		—		—		—
Sales	—			—			—		—		—		—
Settlements	(3,175		)	—			—		—		—		—
Net transfers into/(out of) Level 3	—			—			—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187		$	—	$	—	$	13,382	$	9,731

(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 June 30, 2017.

	June 30, 2017								Three Months Ended June 30, 2017 Fair Value Losses Recognized, net		Six Months Ended June 30, 2017 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	57,259	$	—	$	—	$	57,259	$	4,609	$	6,330
Other real estate owned, including covered other real estate owned (1)	42,617		—		—		42,617		265		1,270
Total	$	99,876	$	—	$	—	$	99,876	$	4,874	$	7,600

(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 June 30, 2017, the Company had $79.3 million of impaired loans classified as Level 3. Of the $79.3 million of impaired loans, $57.3 million were measured at fair value based on the underlying collateral of the loan as shown in the table above. The remaining $22.0 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 June 30, 2017, the Company had $42.6 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 June 30, 2017 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	$	77,341	Bond pricing	Equivalent rating	BBB-AA+	N/A		Increase
U.S. Government agencies	4,110		Bond pricing	Equivalent rating	AAA	AAA		Increase
Loans held-for-investment	30,173		Discounted cash flows	Discount rate	3%-4%	3.70%		Decrease
				Credit loss rate	0%-3%	0.89%		Decrease
				Constant prepayment rate (CPR)	9.42%	9.42%		Decrease
MSRs	27,307		Discounted cash flows	Discount rate	9%-16%	9.81%		Decrease
				Constant prepayment rate (CPR)	0%-34%	9.64%		Decrease
				Cost of servicing	$65-$75	$	65	Decrease
				Cost of servicing - delinquent	$200-$1,000	$	422	Decrease
Derivatives	1,047		Discounted cash flows	Pull-through rate	40%-100%	89.79%		Increase
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	57,259	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%		Decrease
Other real estate owned, including covered other real estate owned	42,617		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 June 30, 2017				At December 31, 2016				At June 30, 2016
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	296,161	$	296,161	$	270,045	$	270,045	$	271,575	$	271,575
Interest bearing deposits with banks	1,011,635		1,011,635		980,457		980,457		693,269		693,269
Available-for-sale securities	1,649,636		1,649,636		1,724,667		1,724,667		637,663		637,663
Held-to-maturity securities	793,376		787,489		635,705		607,602		992,211		1,010,179
Trading account securities	1,987		1,987		1,989		1,989		3,613		3,613
FHLB and FRB stock, at cost	80,812		80,812		133,494		133,494		121,319		121,319
Brokerage customer receivables	23,281		23,281		25,181		25,181		26,866		26,866
Mortgage loans held-for-sale, at fair value	382,837		382,837		418,374		418,374		554,256		554,256
Loans held-for-investment, at fair value	30,173		30,173		22,137		22,137		16,294		16,294
Loans held-for-investment, at amortized cost	20,763,278		21,921,002		19,739,180		20,755,320		18,263,609		19,212,397
MSRs	27,307		27,307		19,103		19,103		13,382		13,382
Nonqualified deferred compensation assets	10,556		10,556		9,228		9,228		9,076		9,076
Derivative assets	49,703		49,703		56,394		56,394		101,052		101,052
Accrued interest receivable and other	215,291		215,291		204,513		204,513		198,017		198,017
Total financial assets	$	25,336,033	$	26,487,870	$	24,240,467	$	25,228,504	$	21,902,202	$	22,868,958
Financial Liabilities
Non-maturity deposits	$	18,086,300	$	18,086,300	$	17,383,729	$	17,383,729	$	15,958,500	$	15,958,500
Deposits with stated maturities	4,519,392		4,503,645		4,274,903		4,263,576		4,083,250		4,086,350
FHLB advances	318,270		316,799		153,831		157,051		588,055		597,568
Other borrowings	277,710		277,710		262,486		262,486		252,611		252,611
Subordinated notes	139,029		143,126		138,971		135,268		138,915		141,858
Junior subordinated debentures	253,566		253,330		253,566		254,384		253,566		254,143
Derivative liabilities	37,651		37,651		39,839		39,839		100,912		100,912
FDIC indemnification liability	15,375		15,375		16,701		16,701		11,729		11,729
Accrued interest payable	6,460		6,460		6,421		6,421		6,175		6,175
Total financial liabilities	$	23,653,753	$	23,640,396	$	22,530,447	$	22,519,455	$	21,393,713	$	21,409,846

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 held-for-investment, at amortized cost. 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

6 Months Ended

Jun. 30, 2017

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 are made pursuant to the 2015 Plan. As of June 30, 2017, approximately 4.0 million shares were available for future grants assuming the maximum number of shares are issued for the performance awards outstanding. 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 generally consist of a combination of time-vested non-qualified stock options, performance-based stock awards and performance-based 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 after 2014) 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 performance-based stock awards are entitled to receive, at no cost, the shares earned based on the achievement of the pre-established long-term goals.

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. Shares that are vested but not issuable pursuant to deferred compensation arrangements accrue additional shares based on the value of dividends otherwise paid. Except in limited circumstances, these awards are canceled upon termination of employment without any payment of consideration by the Company.

Stock-based compensation is measured as the fair value of an award on the date of grant, and the measured cost is recognized over the period which the recipient is required to provide service in exchange for the award. The fair values of restricted share and performance-based stock awards are determined based on the average of the high and low trading prices on the grant date, and the fair value of stock options is estimated using a Black-Scholes option-pricing model that utilizes the assumptions outlined in the following table. Option-pricing models require the input of highly subjective assumptions and are sensitive to changes in the option's expected life and the price volatility of the underlying stock, which can materially affect the fair value estimate. Options granted since the inception of the LTIP in 2011 were primarily granted as LTIP awards. Expected life of options granted since the inception of the LTIP awards has been based on the safe harbor rule of the SEC Staff Accounting Bulletin No. 107 “Share-Based Payment” as the Company believes historical exercise data may not provide a reasonable basis to estimate the expected term of these options. Expected stock price volatility is based on historical volatility of the Company's common stock, which correlates with the expected life of the options, and the risk-free interest rate is based on comparable U.S. Treasury rates. Management reviews and adjusts the assumptions used to calculate the fair value of an option on a periodic basis to better reflect expected trends.

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month period ended June 30, 2016. No options were granted in the six month period ended June 30, 2017.

	Six Months Ended
	June 30,
	2016
Expected dividend yield	0.9	%
Expected volatility	25.2	%
Risk-free rate	1.3	%
Expected option life (in years)	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 $2.8 million in the second quarter of 2017 and $2.3 million in the second quarter of 2016, and $5.7 million and $4.8 million for the 2017 and 2016 year-to-date periods, respectively.

A summary of the Company's stock option activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2017	1,698,912		$	41.50
Granted	—		—
Exercised	(374,046	)	40.28
Forfeited or canceled	(8,173	)	42.49
Outstanding at June 30, 2017	1,316,693		$	41.84	4.4	$	45,561
Exercisable at June 30, 2017	765,711		$	41.56	3.7	$	26,707

(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.

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	558,411		40.96
Exercised	(99,760	)	37.56
Forfeited or canceled	(84,750	)	49.03
Outstanding at June 30, 2016	1,925,635		$	41.07	4.9	$	19,159
Exercisable at June 30, 2016	896,155		$	39.08	3.6	$	10,695

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

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

The weighted average grant date fair value per share of options granted during the six months ended June 30, 2016 was $8.61. The aggregate intrinsic value of options exercised during the six months ended June 30, 2017 and 2016, was $11.9 million and $1.2 million, respectively. Cash received from option exercises under the Plan for the six months ended June 30, 2017 and 2016 were $15.1 million and $3.7 million, respectively.

A summary of the Plans' restricted share activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	133,425		$	49.94	137,593		$	49.63
Granted	13,385		72.36		14,546		43.95
Vested and issued	(10,104	)	45.55		(8,523	)	44.10
Forfeited or canceled	—		—		(504	)	44.26
Outstanding at June 30	136,706		$	52.46	143,112		$	49.40
Vested, but not issuable at June 30	89,391		$	51.55	88,696		$	51.43

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	298,180		$	43.64	276,533		$	43.01
Granted	143,439		72.55		117,409		40.95
Vested and issued	(68,712	)	46.85		(78,410	)	37.90
Forfeited	(8,438	)	49.47		(13,064	)	41.13
Outstanding at June 30	364,469		$	54.28	302,468		$	43.62
Vested, but deferred at June 30	13,590		$	42.60	6,646		$	37.89

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

6 Months Ended

Jun. 30, 2017

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 $152.9 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 were payable quarterly in arrears at a rate of 5.00% per annum. The Series C Preferred Stock was convertible into common stock at the option of the holder subject to customary anti-dilution adjustments. Additionally, on and after April 15, 2017, the Company had 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 exceeded a certain amount. In 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. On April 25, 2017, 2,073 shares of the Series C Preferred Stock were converted at the option of the respective holder into 51,244 shares of the Company's common stock, pursuant to the terms of the Series C Preferred Stock. On April 27, 2017, the Company caused a mandatory conversion of its remaining 124,184 shares of Series C Preferred Stock into 3,069,828 shares of the Company's common stock at a conversion rate of 24.72 shares of common stock per share of Series C Preferred Stock. Cash was paid in lieu of fractional shares for an amount considered insignificant.

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 with a term of 10 years. The exercise price, subject to customary anti-dilution, was $22.68 at June 30, 2017. In February 2011, the U.S. Treasury sold all of its interest in the warrant issued to it in a secondary underwritten public offering. During the first six months of 2017290,545 warrant shares were exercised, which resulted in 199,210 shares of common stock issued. At June 30, 2017, all remaining holders of the interest in the warrant were able to exercise 51,307 warrant shares.

Other

At the January 2017 Board of Directors meeting, a quarterly cash dividend of $0.14 per share ($0.56 on an annualized basis) was declared. It was paid on February 23, 2017 to shareholders of record as of February 9, 2017. At the April 2017 Board of Directors meeting, a quarterly cash dividend of $0.14 per share ($0.56 on an annualized basis) was declared. It was paid on May 25, 2017 to shareholders of record as of May 11, 2017.

Accumulated Other Comprehensive Income (Loss)

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

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2017	$	(25,663	)	$	5,146		$	(39,307	)	$	(59,824	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	10,683			(600		)	2,833			12,916
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(29		)	413			—			384
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(13		)	—			—			(13		)
Net other comprehensive income (loss) during the period, net of tax	$	10,641		$	(187	)	$	2,833		$	13,287
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at January 1, 2017	$	(29,309	)	$	4,165		$	(40,184	)	$	(65,328	)
Other comprehensive income during the period, net of tax, before reclassifications	15,162			165			3,710			19,037
Amount reclassified from accumulated other comprehensive income into net income, net of tax	5			629			—			634
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	$	(880	)	$	—		$	—		$	(880	)
Net other comprehensive income during the period, net of tax	$	14,287		$	794		$	3,710		$	18,791
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at April 1, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	3,724			(822		)	612			3,514
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(875		)	505			—			(370		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,326			—			—			2,326
Net other comprehensive income (loss) during the period, net of tax	$	5,175		$	(317	)	$	612		$	5,470
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,912			(971		)	6,650			24,591
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(1,679		)	944			—			(735		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	4,412			—			—			4,412
Net other comprehensive income (loss) during the period, net of tax	$	21,645		$	(27	)	$	6,650		$	28,268
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2017			2016			2017			2016
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	47		$	1,440		$	(8	)	$	2,765		Gains (losses) on investment securities, net
	47			1,440			(8		)	2,765			Income before taxes
Tax effect	$	(18	)	$	(565	)	$	3		$	(1,086	)	Income tax expense
Net of tax	$	29		$	875		$	(5	)	$	1,679		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	323		$	338		$	365		$	593		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	358			494			$	672		$	962		Interest on junior subordinated debentures
	(681		)	(832		)	(1,037		)	(1,555		)	Income before taxes
Tax effect	$	268		$	327		$	408		$	611		Income tax expense
Net of tax	$	(413	)	$	(505	)	$	(629	)	$	(944	)	Net income

Earnings per Share

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

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Net income		$	64,897	$	50,041	$	123,275	$	99,152
Less: Preferred stock dividends		2,050		3,628		5,678		7,256
Net income applicable to common shares—Basic	(A)	62,847		46,413		117,597		91,896
Add: Dividends on convertible preferred stock, if dilutive		—		1,578		1,578		3,156
Net income applicable to common shares—Diluted	(B)	62,847		47,991		119,175		95,052
Weighted average common shares outstanding	(C)	54,775		49,140		53,528		48,794
Effect of dilutive potential common shares
Common stock equivalents		927		856		994		778
Convertible preferred stock, if dilutive		885		3,109		1,987		3,109
Total dilutive potential common shares		1,812		3,965		2,981		3,887
Weighted average common shares and effect of dilutive potential common shares	(D)	56,587		53,105		56,509		52,681
Net income per common share:
Basic	(A/C)	$	1.15	$	0.94	$	2.20	$	1.88
Diluted	(B/D)	$	1.11	$	0.90	$	2.11	$	1.80

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 for a period, net income applicable to common shares is not adjusted by the associated preferred dividends.

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2017

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, 2016 (“2016 Form 10-K”). Operating results reported for the period 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 2016 Form 10-K.

Recent Accounting Developments, Policy

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. In May 2016 and December 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients” and ASU 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” to clarify specific aspects of implementation, including the collectability criterion, exclusion of sales taxes collected from a transaction price, noncash consideration, contract modifications, completed contracts at transition, the applicability of loan guarantee fees, impairment of capitalized contract costs and certain disclosure requirements. In February 2017, the FASB issued ASU No. 2017-05, “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets,” to clarify the implementation guidance within ASU No. 2014-09 surrounding transfers of nonfinancial assets, including partial sales of such assets, and its impact on revenue recognition. Like ASU No. 2014-09, this guidance is effective for fiscal years beginning after December 15, 2017.

The Company is currently evaluating the impact on the consolidated financial statements of adopting this new guidance. The Company is currently assessing specific characteristics of the various sources of revenues previously identified as being affected by the new guidance and has reviewed specific contracts related to those sources. As certain significant revenue sources such as interest income are considered not in-scope, the Company does not believe the new guidance will have a significant impact on its consolidated financial statements. The Company expects to adopt the new guidance using the modified retrospective approach.

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 discounted 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. Excluding any impact from the clarification of contracts representing a lease, the Company expects to recognize separate lease liabilities and right to use assets for the amounts related to certain facilities under operating lease agreements disclosed in Note 15 - Minimum Lease Commitments in the 2016 Form 10-K. Additionally, the Company does not expect to significantly change operating lease agreements prior to adoption.

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 was effective for fiscal years beginning after December 15, 2016 and did not 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 was effective for fiscal years beginning after December 15, 2016 and did not 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 included 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 was effective for fiscal years beginning after December 15, 2016. In the first six months of 2017, the Company recorded $3.9 million of excess tax benefits within income tax expense on the Consolidated Statements of Income as a result of adoption.

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 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. Specifically, the Company has established a group consisting of individuals from the various areas of the Company tasked with transitioning to the new requirements. At this time, the Company is reviewing potential methodologies for estimating expected credit losses using reasonable and supportable forecast information and has identified certain data and system requirements.

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.

In November 2016, the FASB issued ASU No. 2016-18 “Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force),”to clarify the classification and presentation of changes in restricted cash on the statement of cash flows. 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. 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.

Consolidation

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 was effective for fiscal years beginning after December 15, 2016 and did not have a material impact on the Company's consolidated financial statements.

Business Combinations

In January 2017, the FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” to improve such definition and, as a result, assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The definition of a business impacts many areas of accounting including acquisitions, disposals, goodwill and consolidation. 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 prospective approach. The Company expects the adoption of this new guidance to impact the determination of whether future acquisitions are considered a business combination and the resulting impact of such determination on the consolidated financial statements.

Goodwill

In January 2017, the FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” to simplify the subsequent measurement of goodwill. When the carrying amount of a reporting unit exceeds its fair value, an entity would no longer be required to determine goodwill impairment by assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit was acquired in a business combination. Goodwill impairment would be recognized according to the excess of the carrying amount of the reporting unit over the calculated fair value of such unit. 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 prospective approach. The Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Compensation

In March 2017, the FASB issued ASU No. 2017-07, “Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. An entity will be required to report the service cost component of such costs in the same line item or items as other compensation costs related to services rendered. Additionally, only the service cost component will be eligible for capitalization when applicable. 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 related to presentation of the service cost component and a prospective approach related to capitalization of such costs. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, “Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting,” to clarify when modification accounting is appropriate for changes to the terms and conditions of a share-based payment award. An entity will be required to account for such changes as a modification unless certain criteria is met. 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 prospective approach for awards modified on or after the adoption date. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. When adopted, the Company does not expect this guidance to have a material impact on the Company's consolidated financial statements.

Amortization of Premium on Certain Debt Securities

In March 2017, the FASB issued ASU No. 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities,” to amend the amortization period for certain purchased callable debt securities held at a premium. The amortization period for such securities will be shortened to the earliest call date. 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. Early adoption is permitted as of the beginning of an annual period that has not been issued or made available for issuance. The Company has not early adopted this guidance. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

FDIC-Assisted Transactions, Policy

From 2010 to 2012, 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 loss 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. In the second quarter of 2017, the Company recorded a $4.9 million reduction to the estimated loss share liability as a result of an adjustment related to such clawback provisions. 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. 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 June 30, 2017 to be other-than-temporarily impaired.

Finance, Loans and Leases Receivable, Policy

Certain premium finance receivables are recorded net of unearned income.

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 a loan amount, or portion thereof, is determined to be 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 June 30, 2017 and approximately $953,000 of impairment was present and appropriately reserved for through the Company’s normal reserving methodology in the Company’s allowance for loan losses. For TDRs in which impairment is calculated by the present value of future cash flows, the Company records interest income representing the decrease in impairment resulting from the passage of time during the respective period, which differs from interest income from contractually required interest on these specific loans.  During the three months ended June 30, 2017 and 2016, the Company recorded $49,000 and $135,000, respectively, of interest income, which was reflected as a decrease in impairment. For the six months endedJune 30, 2017 and 2016, the Company recorded $104,000 and $225,000, respectively, of interest income, which was reflected as a decrease in impairment.

TDRs may arise in which, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to OREO, which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. Excluding covered OREO, at June 30, 2017, the Company had $8.4 million of foreclosed residential real estate properties included within OREO.

Goodwill and Intangible Assets, Goodwill, Policy

At June 30, 2017, the Company utilized a quantitative approach for its annual goodwill impairment test of the community banking segment and determined that no impairment existed at that time. At December 31, 2016, the Company utilized a quantitative approach for its annual goodwill impairment tests of the specialty finance and wealth management segments and determined that no impairment existed at that time. At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. As of June 30, 2017, the Company identified no such indicators of goodwill impairment within the specialty finance and wealth management segments.

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

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.

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.

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.

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.

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 and mortgage-backed 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.

Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Policy

The remaining $13.3 million within secured borrowings at June 30, 2017 represents other sold interests in certain loans by the Company that were not considered sales and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the various unrelated third parties.

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 2016 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

Derivatives, Policy

The effective portion of changes in the fair value of these cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified to interest expense as interest payments are made on the Company’s variable rate junior subordinated debentures. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income. The ineffective portion of the change in fair value of these derivatives is recognized directly in earnings; however, no hedge ineffectiveness was recognized during the six months ended June 30, 2017 or June 30, 2016. The Company uses the hypothetical derivative method to assess and measure hedge effectiveness.

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 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.

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

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of other comprehensive income depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge. Generally, changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges, to the extent they are effective hedges, are recorded as a component of other comprehensive income, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815, including changes in fair value related to the ineffective portion of cash flow hedges, are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated by 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.

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.

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.

Derivatives, Offsetting Fair Value Amounts, Policy

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

Fair Value of Financial Instruments, Policy

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

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

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

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

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

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

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

At June 30, 2017, the Company classified $77.3 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 also classified $4.1 million of U.S. government agencies as Level 3 at June 30, 2017. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Investment Operations Department references a publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e. a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). In the second quarter of 2017, all of the ratings derived in the above process by Investment Operations were BBB or better, for both bonds with and without comparable bond proxies. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at June 30, 2017 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. To determine the rating for the U.S. government agency securities, the Investment Operations Department assigned a AAA rating as it is guaranteed by the U.S. government.

At June 30, 2017 and December 31, 2016, the Company held no equity securities classified as Level 3 compared to $25.2 million at June 30, 2016. At June 30, 2016, 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 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.

Loans held-for-investment—The fair value for loans in which the Company elected the fair value option is estimated by discounting future scheduled cash flows for the specific loan through maturity, adjusted for estimated credit losses and prepayments. At June 30, 2017, the Company classified $30.2 million of loans held-for-investment as Level 3. The weighted average discount rate used as an input to value these loans at June 30, 2017 was 3.70% with discount rates applied ranging from 3%-4%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. As noted above, the fair value estimate also includes assumptions of prepayment speeds and credit losses. The Company included a prepayments speed assumption of 9.42% at June 30, 2017. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation. Additionally, the weighted average credit loss rate used as an input to value the specific loans was 0.89% with credit loss rates ranging from 0%-3% at June 30, 2017.

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 June 30, 2017, the Company classified $27.3 million of MSRs as Level 3. The weighted average discount rate used as an input to value the MSRs at June 30, 2017 was 9.81% with discount rates applied ranging from 9%-16%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. The fair value of MSRs was also estimated based on other assumptions including prepayment speeds and the cost to service. Prepayment speeds used as an input to value the MSRs at June 30, 2017 ranged from 0%-34% or a weighted average prepayment speed of 9.64%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $65 and $422, respectively, per loan. Prepayment speeds and the cost to service are both inversely related to the fair value of MSRs as an increase in prepayment speeds or the cost to service 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.

At June 30, 2017, the Company classified $1.0 million of derivative assets related to interest rate locks as Level 3. The fair value of interest rate locks is based on prices obtained for loans with similar characteristics from third parties, adjusted for the pull-through rate, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund. The weighted-average pull-through rate at June 30, 2017 was 89.79% with pull-through rates applied ranging from 40% to 100%. Pull-through rates are directly related to the fair value of interest rate locks as an increase in the pull-through rate results in an increased valuation

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 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 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 held-for-investment, at amortized cost. 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.

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. Options granted since the inception of the LTIP in 2011 were primarily granted as LTIP awards. 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 for a period, net income applicable to common shares is not adjusted by the associated preferred dividends.

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Business Combinations (Tables)

6 Months Ended

Jun. 30, 2017

Business Combinations [Abstract]

Summary of FDIC Indemnification Asset

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

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Balance at beginning of period	$	18,263		$	10,029		$	16,701		$	6,100
Reductions from reimbursable expenses	(75		)	(648		)	(157		)	(730		)
Amortization	455			506			699			866
Changes in expected reimbursements (to) from the FDIC for changes in expected credit losses and reimbursable expenses	(3,673		)	1,785			(2,659		)	5,073
Payments received from the FDIC	405			57			791			420
Balance at end of period	$	15,375		$	11,729		$	15,375		$	11,729

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Investment Securities (Tables)

6 Months Ended

Jun. 30, 2017

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:

	June 30, 2017
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-sale securities
U.S. Treasury	$	119,804	$	—	$	(723	)	$	119,081
U.S. Government agencies	158,162		22		(674		)	157,510
Municipal	121,610		2,774		(264		)	124,120
Corporate notes:
Financial issuers	60,340		71		(810		)	59,601
Other	1,000		—		(3		)	997
Mortgage-backed: (1)
Mortgage-backed securities	1,139,734		2,301		(31,704		)	1,110,331
Collateralized mortgage obligations	42,845		433		(319		)	42,959
Equity securities	32,642		3,028		(633		)	35,037
Total available-for-sale securities	$	1,676,137	$	8,629	$	(35,130	)	$	1,649,636
Held-to-maturity securities
U.S. Government agencies	$	585,071	$	556	$	(7,461	)	$	578,166
Municipal	208,305		2,298		(1,280		)	209,323
Total held-to-maturity securities	$	793,376	$	2,854	$	(8,741	)	$	787,489

	December 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	142,741	$	1	$	(759	)	$	141,983
U.S. Government agencies	189,540		47		(435		)	189,152
Municipal	129,446		2,969		(606		)	131,809
Corporate notes:
Financial issuers	65,260		132		(1,000		)	64,392
Other	1,000		—		(1		)	999
Mortgage-backed: (1)
Mortgage-backed securities	1,185,448		284		(54,330		)	1,131,402
Collateralized mortgage obligations	30,105		67		(490		)	29,682
Equity securities	32,608		3,429		(789		)	35,248
Total available-for-sale securities	$	1,776,148	$	6,929	$	(58,410	)	$	1,724,667
Held-to-maturity securities
U.S. Government agencies	$	433,343	$	7	$	(24,470	)	$	408,880
Municipal	202,362		647		(4,287		)	198,722
Total held-to-maturity securities	$	635,705	$	654	$	(28,757	)	$	607,602

	June 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)
Available-for-sale securities
U.S. Treasury	$	122,296	$	35	$	(1	)	$	122,330
U.S. Government agencies	69,678		238		—			69,916
Municipal	108,179		3,588		(127		)	111,640
Corporate notes:
Financial issuers	68,097		1,502		(1,411		)	68,188
Other	1,500		2		—			1,502
Mortgage-backed: (1)
Mortgage-backed securities	162,593		4,280		(150		)	166,723
Collateralized mortgage obligations	40,419		457		(91		)	40,785
Equity securities	51,426		5,544		(391		)	56,579
Total available-for-sale securities	$	624,188	$	15,646	$	(2,171	)	$	637,663
Held-to-maturity securities
U.S. Government agencies	$	789,482	$	11,861	$	(647	)	$	800,696
Municipal	202,729		6,967		(213		)	209,483
Total held-to-maturity securities	$	992,211	$	18,828	$	(860	)	$	1,010,179

(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 June 30, 2017:

	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	$	119,081	$	(723	)	$	—	$	—		$	119,081	$	(723	)
U.S. Government agencies	152,149		(674		)	—		—			152,149		(674		)
Municipal	145,960		(155		)	5,852		(109		)	151,812		(264		)
Corporate notes:
Financial issuers	—		—			35,154		(810		)	35,154		(810		)
Other	997		(3		)	—		—			997		(3		)
Mortgage-backed:
Mortgage-backed securities	932,800		(31,704		)	—		—			932,800		(31,704		)
Collateralized mortgage obligations	11,809		(122		)	7,353		(197		)	19,162		(319		)
Equity securities	10,189		(271		)	5,138		(362		)	15,327		(633		)
Total available-for-sale securities	$	1,372,985	$	(33,652	)	$	53,497	$	(1,478	)	$	1,426,482	$	(35,130	)
Held-to-maturity securities
U.S. Government agencies	$	363,692	$	(7,461	)	$	—	$	—		$	363,692	$	(7,461	)
Municipal	73,447		(1,280		)	—		—			73,447		(1,280		)
Total held-to-maturity securities	$	437,139	$	(8,741	)	$	—	$	—		$	437,139	$	(8,741	)

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 June 30,						Six months ended June 30,
(Dollars in thousands)	2017			2016			2017			2016
Realized gains	$	48		$	1,487		$	48		$	4,037
Realized losses	(1		)	(47		)	(56		)	(1,272		)
Net realized gains (losses)	$	47		$	1,440		$	(8	)	$	2,765
Other than temporary impairment charges	—			—			—			—
Gains (losses) on investment securities, net	$	47		$	1,440		$	(8	)	$	2,765
Proceeds from sales and calls of available-for-sale securities	$	3,724		$	1,068,795		$	9,729		$	1,071,996
Proceeds from calls of held-to-maturity securities	2			183,738			51,062			281,981

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of securities as of June 30, 2017, December 31, 2016 and June 30, 2016, 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 determined to be available-for-sale are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2017				December 31, 2016				June 30, 2016
(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	$	125,706	$	125,170	$	145,353	$	145,062	$	214,917	$	215,290
Due in one to five years	289,688		289,243		321,019		320,423		113,263		113,395
Due in five to ten years	38,213		39,463		27,319		28,451		28,111		30,870
Due after ten years	7,309		7,433		34,296		34,399		13,459		14,021
Mortgage-backed	1,182,579		1,153,290		1,215,553		1,161,084		203,012		207,508
Equity securities	32,642		35,037		32,608		35,248		51,426		56,579
Total available-for-sale securities	$	1,676,137	$	1,649,636	$	1,776,148	$	1,724,667	$	624,188	$	637,663
Held-to-maturity securities
Due in one year or less	$	—	$	—	$	—	$	—	$	—	$	—
Due in one to five years	32,925		32,776		29,794		29,416		27,505		27,738
Due in five to ten years	172,398		172,800		69,664		67,820		68,691		70,121
Due after ten years	588,053		581,913		536,247		510,366		896,015		912,320
Total held-to-maturity securities	$	793,376	$	787,489	$	635,705	$	607,602	$	992,211	$	1,010,179

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Loans (Tables)

6 Months Ended

Jun. 30, 2017

Loans and Leases Receivable Disclosure [Abstract]

Summary of Loan Portfolio

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

	June 30,			December 31,			June 30,
(Dollars in thousands)	2017			2016			2016
Balance:
Commercial	$	6,406,289		$	6,005,422		$	5,144,533
Commercial real estate	6,402,494			6,196,087			5,848,334
Home equity	689,483			725,793			760,904
Residential real estate	762,810			705,221			653,664
Premium finance receivables—commercial	2,648,386			2,478,581			2,478,280
Premium finance receivables—life insurance	3,719,043			3,470,027			3,161,562
Consumer and other	114,827			122,041			127,378
Total loans, net of unearned income, excluding covered loans	$	20,743,332		$	19,703,172		$	18,174,655
Covered loans	50,119			58,145			105,248
Total loans	$	20,793,451		$	19,761,317		$	18,279,903
Mix:
Commercial	31		%	30		%	28		%
Commercial real estate	31			31			31
Home equity	3			4			4
Residential real estate	3			4			4
Premium finance receivables—commercial	13			12			14
Premium finance receivables—life insurance	18			18			17
Consumer and other	1			1			1
Total loans, net of unearned income, excluding covered loans	100		%	100		%	99		%
Covered loans	—			—			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:

	June 30, 2017				December 31, 2016
(Dollars in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
PCI loans	$	443,216	$	412,519	$	509,446	$	471,786

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						Six Months Ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Accretable yield, beginning balance	$	45,762		$	59,218		$	49,408		$	63,902
Acquisitions	(105		)	125			426			1,266
Accretable yield amortized to interest income	(5,477		)	(5,199		)	(11,076		)	(10,656		)
Accretable yield amortized to indemnification asset/liability (1)	(361		)	(1,624		)	(715		)	(3,795		)
Reclassification from non-accretable difference (2)	3,554			2,536			6,089			6,729
Decreases in interest cash flows due to payments and changes in interest rates	2,137			574			1,378			(1,816		)
Accretable yield, ending balance (3)	$	45,510		$	55,630		$	45,510		$	55,630

(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 June 30, 2017, the Company estimates that the remaining accretable yield balance to be amortized to the indemnification asset or liability for the bankacquisitions is $448,000. The remainder of the accretable yield related to bank acquisitions is expected to be amortized to interest income.

XML

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

6 Months Ended

Jun. 30, 2017

Receivables [Abstract]

Schedule of Aging of the Company's Loan Portfolio

The tables below show the aging of the Company’s loan portfolio at June 30, 2017, December 31, 2016 and June 30, 2016:

As of June 30, 2017			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	$	8,720	$	—	$	5,917	$	12,658	$	4,067,237	$	4,094,532
Franchise	—		—		—		—		838,394		838,394
Mortgage warehouse lines of credit	—		—		—		2,361		232,282		234,643
Asset-based lending	936		—		983		7,293		862,694		871,906
Leases	535		—		—		60		356,009		356,604
PCI - commercial (1)	—		1,572		162		—		8,476		10,210
Total commercial	10,191		1,572		7,062		22,372		6,365,092		6,406,289
Commercial real estate:
Construction	2,408		—		—		—		707,179		709,587
Land	202		—		—		6,455		105,496		112,153
Office	4,806		—		607		7,725		874,546		887,684
Industrial	2,193		—		—		709		789,889		792,791
Retail	1,635		—		—		15,081		903,778		920,494
Multi-family	354		—		—		1,186		813,058		814,598
Mixed use and other	5,382		—		713		7,590		2,005,265		2,018,950
PCI - commercial real estate (1)	—		8,768		322		3,303		133,844		146,237
Total commercial real estate	16,980		8,768		1,642		42,049		6,333,055		6,402,494
Home equity	9,482		—		855		2,858		676,288		689,483
Residential real estate, including PCI	14,292		775		1,273		300		746,170		762,810
Premium finance receivables
Commercial insurance loans	10,456		5,922		4,951		11,713		2,615,344		2,648,386
Life insurance loans	—		1,046		—		16,977		3,474,686		3,492,709
PCI - life insurance loans (1)	—		—		—		—		226,334		226,334
Consumer and other, including PCI	439		125		331		515		113,417		114,827
Total loans, net of unearned income, excluding covered loans	$	61,840	$	18,208	$	16,114	$	96,784	$	20,550,386	$	20,743,332
Covered loans	1,961		2,504		113		598		44,943		50,119
Total loans, net of unearned income	$	63,801	$	20,712	$	16,227	$	97,382	$	20,595,329	$	20,793,451

(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, 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	$	13,441	$	174	$	2,341	$	11,779	$	3,716,977	$	3,744,712
Franchise	—		—		—		493		869,228		869,721
Mortgage warehouse lines of credit	—		—		—		—		204,225		204,225
Asset-based lending	1,924		—		135		1,609		871,402		875,070
Leases	510		—		—		1,331		293,073		294,914
PCI - commercial (1)	—		1,689		100		2,428		12,563		16,780
Total commercial	15,875		1,863		2,576		17,640		5,967,468		6,005,422
Commercial real estate
Construction	2,408		—		—		1,824		606,007		610,239
Land	394		—		188		—		104,219		104,801
Office	4,337		—		4,506		1,232		857,599		867,674
Industrial	7,047		—		4,516		2,436		756,602		770,601
Retail	597		—		760		3,364		907,872		912,593
Multi-family	643		—		322		1,347		805,312		807,624
Mixed use and other	6,498		—		1,186		12,632		1,931,859		1,952,175
PCI - commercial real estate (1)	—		16,188		3,775		8,888		141,529		170,380
Total commercial real estate	21,924		16,188		15,253		31,723		6,110,999		6,196,087
Home equity	9,761		—		1,630		6,515		707,887		725,793
Residential real estate, including PCI	12,749		1,309		936		8,271		681,956		705,221
Premium finance receivables
Commercial insurance loans	14,709		7,962		5,646		14,580		2,435,684		2,478,581
Life insurance loans	—		3,717		17,514		16,204		3,182,935		3,220,370
PCI - life insurance loans (1)	—		—		—		—		249,657		249,657
Consumer and other, including PCI	439		207		100		887		120,408		122,041
Total loans, net of unearned income, excluding covered loans	$	75,457	$	31,246	$	43,655	$	95,820	$	19,456,994	$	19,703,172
Covered loans	2,121		2,492		225		1,553		51,754		58,145
Total loans, net of unearned income	$	77,578	$	33,738	$	43,880	$	97,373	$	19,508,748	$	19,761,317

As of June 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	$	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

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

Summary of Performance by Loan Class

The following table presents the recorded investment based on performance of loans by class, excluding covered loans, per the most recent analysis at June 30, 2017, December 31, 2016 and June 30, 2016:

	Performing						Non-performing						Total
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Loan Balances:
Commercial
Commercial, industrial and other	$	4,085,812	$	3,731,097	$	3,440,161	$	8,720	$	13,615	$	16,414	$	4,094,532	$	3,744,712	$	3,456,575
Franchise	838,394		869,721		289,905		—		—		—		838,394		869,721		289,905
Mortgage warehouse lines of credit	234,643		204,225		270,586		—		—		—		234,643		204,225		270,586
Asset-based lending	870,970		873,146		842,432		936		1,924		235		871,906		875,070		842,667
Leases	356,069		294,404		267,687		535		510		387		356,604		294,914		268,074
PCI - commercial (1)	10,210		16,780		16,726		—		—		—		10,210		16,780		16,726
Total commercial	6,396,098		5,989,373		5,127,497		10,191		16,049		17,036		6,406,289		6,005,422		5,144,533
Commercial real estate
Construction	707,179		607,831		404,232		2,408		2,408		673		709,587		610,239		404,905
Land	111,951		104,407		104,156		202		394		1,725		112,153		104,801		105,881
Office	882,878		863,337		903,179		4,806		4,337		6,274		887,684		867,674		909,453
Industrial	790,598		763,554		756,474		2,193		7,047		10,295		792,791		770,601		766,769
Retail	918,859		911,996		896,930		1,635		597		916		920,494		912,593		897,846
Multi-family	814,244		806,981		778,427		354		643		90		814,598		807,624		778,517
Mixed use and other	2,013,568		1,945,677		1,808,223		5,382		6,498		4,442		2,018,950		1,952,175		1,812,665
PCI - commercial real estate(1)	146,237		170,380		172,298		—		—		—		146,237		170,380		172,298
Total commercial real estate	6,385,514		6,174,163		5,823,919		16,980		21,924		24,415		6,402,494		6,196,087		5,848,334
Home equity	680,001		716,032		752,342		9,482		9,761		8,562		689,483		725,793		760,904
Residential real estate, including PCI	748,339		692,472		641,251		14,471		12,749		12,413		762,810		705,221		653,664
Premium finance receivables
Commercial insurance loans	2,632,008		2,455,910		2,453,225		16,378		22,671		25,055		2,648,386		2,478,581		2,478,280
Life insurance loans	3,491,663		3,216,653		2,869,960		1,046		3,717		—		3,492,709		3,220,370		2,869,960
PCI - life insurance loans (1)	226,334		249,657		291,602		—		—		—		226,334		249,657		291,602
Consumer and other, including PCI	114,325		121,458		126,740		502		583		638		114,827		122,041		127,378
Total loans, net of unearned income, excluding covered loans	$	20,674,282	$	19,615,718	$	18,086,536	$	69,050	$	87,454	$	88,119	$	20,743,332	$	19,703,172	$	18,174,655

(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 six months endedJune 30, 2017 and 2016 is as follows:

Three months ended June 30, 2017				Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)	Commercial
Allowance for credit losses
Allowance for loan losses at beginning of period	$	46,582		$	52,633		$	12,203		$	5,530		$	7,559		$	1,312		$	125,819
Other adjustments	(2		)	(47		)	—			(3		)	22			—			(30		)
Reclassification from allowance for unfunded lending-related commitments	92			14			—			—			—			—			106
Charge-offs	(913		)	(1,985		)	(1,631		)	(146		)	(1,878		)	(175		)	(6,728		)
Recoveries	561			276			144			54			404			33			1,472
Provision for credit losses	6,038			1,448			418			708			245			95			8,952
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296
Individually evaluated for impairment	$	2,528		$	1,473		$	1,296		$	764		$	—		$	91		$	6,152
Collectively evaluated for impairment	49,692			51,952			9,838			5,306			6,352			1,174			124,314
Loans acquired with deteriorated credit quality	638			119			—			73			—			—			830
Loans at period end
Individually evaluated for impairment	$	14,469		$	34,690		$	9,633		$	20,859		$	—		$	421		$	80,072
Collectively evaluated for impairment	6,381,610			6,221,567			679,850			708,042			6,141,095			113,319			20,245,483
Loans acquired with deteriorated credit quality	10,210			146,237			—			3,736			226,334			1,087			387,604
Loans held at fair value	—			—			—			30,173			—			—			30,173

Three months ended June 30, 2016	Commercial			Commercial Real Estate			Home  Equity			Residential Real Estate			Premium Finance Receivables			Consumer and Other			Total, Excluding Covered Loans
(Dollars in thousands)
Allowance for credit losses
Allowance for loan losses at beginning of period	$	38,435		$	45,263		$	12,915		$	5,164		$	7,205		$	1,189		$	110,171
Other adjustments	(59		)	(70		)	—			(9		)	4			—			(134		)
Reclassification from allowance for unfunded lending-related commitments	—			(40		)	—			—			—			—			(40		)
Charge-offs	(721		)	(502		)	(2,046		)	(693		)	(1,911		)	(224		)	(6,097		)
Recoveries	121			296			71			31			633			35			1,187
Provision for credit losses	3,878			1,877			443			912			1,883			276			9,269
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426
Individually evaluated for impairment	$	3,417		$	2,121		$	477		$	625		$	—		$	5		$	6,645
Collectively evaluated for impairment	37,571			45,736			10,906			4,720			7,814			1,271			108,018
Loans acquired with deteriorated credit quality	666			37			—			60			—			—			763
Loans at period end
Individually evaluated for impairment	$	21,173		$	49,284		$	8,562		$	17,281		$	—		$	536		$	96,836
Collectively evaluated for impairment	5,106,634			5,626,752			752,342			615,831			5,348,240			126,842			17,576,641
Loans acquired with deteriorated credit quality	16,726			172,298			—			4,258			291,602			—			484,884
Loans held at fair value	—			—			—			16,294			—			—			16,294

Six months ended June 30, 2017				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	$	44,493		$	51,422		$	11,774		$	5,714		$	7,625		$	1,263		$	122,291
Other adjustments	(21		)	(83		)	—			(7		)	25			—			(86		)
Reclassification from allowance for unfunded lending-related commitments	—			(32		)	—			—			—			—			(32		)
Charge-offs	(1,554		)	(2,246		)	(2,256		)	(475		)	(3,305		)	(309		)	(10,145		)
Recoveries	834			830			209			232			1,016			174			3,295
Provision for credit losses	8,606			2,448			1,407			679			991			137			14,268
Allowance for loan losses at period end	$	52,358		$	52,339		$	11,134		$	6,143		$	6,352		$	1,265		$	129,591
Allowance for unfunded lending-related commitments at period end	$	500		$	1,205		$	—		$	—		$	—		$	—		$	1,705
Allowance for credit losses at period end	$	52,858		$	53,544		$	11,134		$	6,143		$	6,352		$	1,265		$	131,296

Six months ended June 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	(68		)	(146		)	—			(39		)	41			—			(212		)
Reclassification from allowance for unfunded lending-related commitments	—			(121		)	—			—			—			—			(121		)
Charge-offs	(1,392		)	(1,173		)	(3,098		)	(1,186		)	(4,391		)	(331		)	(11,571		)
Recoveries	750			665			119			143			1,420			71			3,168
Provision for credit losses	6,229			3,841			2,350			1,753			3,511			8			17,692
Allowance for loan losses at period end	$	41,654		$	46,824		$	11,383		$	5,405		$	7,814		$	1,276		$	114,356
Allowance for unfunded lending-related commitments at period end	$	—		$	1,070		$	—		$	—		$	—		$	—		$	1,070
Allowance for credit losses at period end	$	41,654		$	47,894		$	11,383		$	5,405		$	7,814		$	1,276		$	115,426

Summary Of Activity In Allowance For Covered Loan By FDIC Loss Table

A summary of activity in the allowance for covered loan losses for the three and six months endedJune 30, 2017 and 2016 is as follows:

	Three Months Ended						Six Months Ended
	June 30,			June 30,			June 30,			June 30,
(Dollars in thousands)	2017			2016			2017			2016
Balance at beginning of period	$	1,319		$	2,507		$	1,322		$	3,026
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(303		)	(702		)	(838		)	(2,648		)
Benefit attributable to FDIC loss share agreements	242			562			670			2,119
Net provision for covered loan losses	(61		)	(140		)	(168		)	(529		)
Increase/decrease in FDIC indemnification liability/asset	(242		)	(562		)	(670		)	(2,119		)
Loans charged-off	(120		)	(143		)	(336		)	(373		)
Recoveries of loans charged-off	178			750			926			2,407
Net recoveries	58			607			590			2,034
Balance at end of period	$	1,074		$	2,412		$	1,074		$	2,412

Summary of Impaired Loans, Including Restructured Loans

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

	June 30,		December 31,		June 30,
(Dollars in thousands)	2017		2016		2016
Impaired loans (included in non-performing and TDRs):
Impaired loans with an allowance for loan loss required (1)	$	29,037	$	33,146	$	42,968
Impaired loans with no allowance for loan loss required	50,281		57,370		53,008
Total impaired loans (2)	$	79,318	$	90,516	$	95,976
Allowance for loan losses related to impaired loans	$	5,633	$	6,377	$	6,611
TDRs	$	33,091	$	41,708	$	49,635

(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 Six Months Ended
	As of June 30, 2017						June 30, 2017
	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	$	2,969	$	3,006	$	1,499	$	3,061	$	83
Asset-based lending	511		512		293		704		21
Leases	2,504		2,508		235		2,578		62
Commercial real estate
Construction	7,632		7,632		957		7,665		165
Land	1,750		1,750		7		1,750		32
Office	1,314		1,418		32		1,318		44
Industrial	—		—		—		—		—
Retail	1,582		1,631		130		1,596		40
Multi-family	1,513		1,513		27		1,518		28
Mixed use and other	1,455		1,531		302		1,478		35
Home equity	1,901		1,950		1,296		1,920		35
Residential real estate	5,815		6,090		764		5,731		118
Consumer and other	91		93		91		96		2
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	6,815	$	7,785	$	—	$	7,285	$	213
Asset-based lending	425		425		—		764		16
Leases	852		852		—		879		26
Commercial real estate
Construction	1,504		1,504		—		1,534		33
Land	2,375		2,472		—		2,380		56
Office	3,973		5,074		—		4,076		131
Industrial	2,193		3,622		—		4,328		190
Retail	1,188		1,273		—		1,188		51
Multi-family	89		174		—		89		4
Mixed use and other	7,761		9,299		—		8,494		239
Home equity	7,732		11,260		—		8,906		258
Residential real estate	15,044		17,068		—		15,203		368
Consumer and other	330		434		—		333		11
Total impaired loans, net of unearned income	$	79,318	$	90,876	$	5,633	$	84,874	$	2,261

							For the Twelve Months Ended
	As of December 31, 2016						December 31, 2016
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average  Recorded Investment		Interest Income Recognized
(Dollars in thousands)
Impaired loans with a related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	2,601	$	2,617	$	1,079	$	2,649	$	134
Asset-based lending	233		235		26		235		10
Leases	2,441		2,443		107		2,561		128
Commercial real estate
Construction	5,302		5,302		86		5,368		164
Land	1,283		1,283		1		1,303		47
Office	2,687		2,697		324		2,797		137
Industrial	5,207		5,843		1,810		7,804		421
Retail	1,750		1,834		170		2,039		101
Multi-family	—		—		—		—		—
Mixed use and other	3,812		4,010		592		4,038		195
Home equity	1,961		1,873		1,233		1,969		75
Residential real estate	5,752		6,327		849		5,816		261
Consumer and other	117		121		100		131		7
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	12,534	$	14,704	$	—	$	14,944	$	948
Asset-based lending	1,691		2,550		—		8,467		377
Leases	873		873		—		939		56
Commercial real estate
Construction	4,003		4,003		—		4,161		81
Land	3,034		3,503		—		3,371		142
Office	3,994		5,921		—		4,002		323
Industrial	2,129		2,436		—		2,828		274
Retail	—		—		—		—		—
Multi-family	1,903		1,987		—		1,825		84
Mixed use and other	6,815		7,388		—		6,912		397
Home equity	8,033		10,483		—		8,830		475
Residential real estate	11,983		14,124		—		12,041		622
Consumer and other	378		489		—		393		26
Total impaired loans, net of unearned income	$	90,516	$	103,046	$	6,377	$	105,423	$	5,485

							For the Six Months Ended
	As of June 30, 2016						June 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	$	10,253	$	12,866	$	3,280	$	10,172	$	375
Asset-based lending	—		—		—		—		—
Leases	387		387		128		390		10
Commercial real estate
Construction	—		—		—		—		—
Land	4,538		4,538		18		4,592		83
Office	2,401		3,059		176		2,427		70
Industrial	7,369		7,773		1,514		7,552		195
Retail	7,007		7,024		264		7,064		95
Multi-family	1,274		1,274		15		1,066		18
Mixed use and other	3,040		3,162		109		3,063		73
Home equity	1,349		1,511		477		1,443		30
Residential real estate	5,230		5,840		625		5,289		123
Consumer and other	120		148		5		123		4
Impaired loans with no related ASC 310 allowance recorded
Commercial
Commercial, industrial and other	$	10,092	$	10,950	$	—	$	10,045	$	328
Asset-based lending	—		—		—		—		—
Leases	—		—		—		—		—
Commercial real estate
Construction	2,677		2,677		—		2,693		77
Land	2,979		7,492		—		3,001		254
Office	6,967		8,715		—		7,107		227
Industrial	3,966		5,093		—		4,326		168
Retail	1,122		1,122		—		1,129		27
Multi-family	90		174		—		119		3
Mixed use and other	5,435		5,960		—		5,498		159
Home equity	7,213		9,674		—		8,356		219
Residential real estate	12,051		14,180		—		11,997		308
Consumer and other	416		494		—		427		14
Total impaired loans, net of unearned income	$	95,976	$	114,113	$	6,611	$	97,879	$	2,860

Summary of the Post-Modification Balance of TDRs

The tables below present a summary of the post-modification balance of loans restructured during the three and six months endedJune 30, 2017 and 2016, respectively, which represent TDRs:

Three months ended June 30, 2017 (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	4	2,210		4	2,210		3	2,161		—	—		—	—
Total loans	4	$	2,210	4	$	2,210	3	$	2,161	—	$	—	—	$	—

Three months ended June 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	$	275	1	$	275	—	$	—	—	$	—	1	$	275
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	—	—		—	—		—	—		—	—		—	—
Residential real estate and other	1	380		1	380		1	380		1	380		—	—
Total loans	2	$	655	2	$	655	1	$	380	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.

Six months ended June 30, 2017 (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	$	95	1	$	95	—	$	—	—	$	—	—	$	—
Commercial real estate
Office	—	—		—	—		—	—		—	—		—	—
Industrial	—	—		—	—		—	—		—	—		—	—
Mixed use and other	1	1,245		1	1,245		—	—		—	—		—	—
Residential real estate and other	6	2,383		6	2,383		5	2,334		—	—		—	—
Total loans	8	$	3,723	8	$	3,723	5	$	2,334	—	$	—	—	$	—

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

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

Six months ended June 30, 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	2	$	317	2	$	317	—	$	—	—	$	—	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	2	540		1	380		2	540		1	380		—	—
Total loans	13	$	9,378	12	$	9,218	5	$	7,736	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.

Summary of TDRs Subsequent Default Under the Restructured Terms

The following table presents a summary of all loans restructured in TDRs during the twelve months ended June 30, 2017 and 2016, and such loans which were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	As of June 30, 2017			Three Months Ended June 30, 2017			Six Months Ended June 30, 2017
	Total (1)(3)			Payments in Default  (2)(3)			Payments in Default  (2)(3)
	Count	Balance		Count	Balance		Count	Balance
Commercial
Commercial, industrial and other	2	$	123	1	$	28	1	$	28
Leases	2	2,949		—	—		—	—
Commercial real estate
Office	—	—		—	—		—	—
Industrial	—	—		—	—		—	—
Mixed use and other	1	1,245		—	—		—	—
Residential real estate and other	11	2,925		1	232		1	232
Total loans	16	$	7,242	2	$	260	2	$	260

(Dollars in thousands)	As of June 30, 2016			Three Months Ended June 30, 2016			Six Months Ended June 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	2	$	317	—	$	—	—	$	—
Leases	—	—		—	—		—	—
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	762		1	222		1	222
Total loans	16	$	9,801	6	$	1,413	8	$	1,614

(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)

6 Months Ended

Jun. 30, 2017

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, 2017		Goodwill Acquired		Impairment Loss		Goodwill Adjustments			June 30, 2017
Community banking	$	427,781	$	999	$	—	$	(152	)	$	428,628
Specialty finance	38,692		—		—		826			39,518
Wealth management	32,114		—		—		—			32,114
Total	$	498,587	$	999	$	—	$	674		$	500,260

Summary of Finite-Lived Intangible Assets

A summary of finite-lived intangible assets as of the dates shown and the expected amortization as of June 30, 2017 is as follows:

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Community banking segment:
Core deposit intangibles:
Gross carrying amount	$	37,272		$	37,272		$	34,998
Accumulated amortization	(23,632		)	(21,614		)	(19,654		)
Net carrying amount	$	13,640		$	15,658		$	15,344
Specialty finance segment:
Customer list intangibles:
Gross carrying amount	$	1,800		$	1,800		$	1,800
Accumulated amortization	(1,221		)	(1,159		)	(1,100		)
Net carrying amount	$	579		$	641		$	700
Wealth management segment:
Customer list and other intangibles:
Gross carrying amount	$	7,940		$	7,940		$	7,940
Accumulated amortization	(2,613		)	(2,388		)	(2,163		)
Net carrying amount	$	5,327		$	5,552		$	5,777
Total other intangible assets, net	$	19,546		$	21,851		$	21,821

Estimated Amortization

Estimated amortization
Actual in six months ended June 30, 2017	$	2,305
Estimated remaining in 2017	2,086
Estimated—2018	3,778
Estimated—2019	3,206
Estimated—2020	2,580
Estimated—2021	2,039

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Deposits (Tables)

6 Months Ended

Jun. 30, 2017

Deposits [Abstract]

Summary of Deposits

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

(Dollars in thousands)	June 30, 2017			December 31, 2016			June 30, 2016
Balance:
Non-interest bearing	$	6,294,052		$	5,927,377		$	5,367,672
NOW and interest bearing demand deposits	2,459,238			2,624,442			2,450,710
Wealth management deposits	2,464,162			2,209,617			1,904,121
Money market	4,449,385			4,441,811			4,384,134
Savings	2,419,463			2,180,482			1,851,863
Time certificates of deposit	4,519,392			4,274,903			4,083,250
Total deposits	$	22,605,692		$	21,658,632		$	20,041,750
Mix:
Non-interest bearing	28		%	27		%	27		%
NOW and interest bearing demand deposits	11			12			12
Wealth management deposits	11			10			10
Money market	19			21			22
Savings	11			10			9
Time certificates of deposit	20			20			20
Total deposits	100		%	100		%	100		%

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

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Summary of Debt

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

(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016
FHLB advances	$	318,270	$	153,831	$	588,055
Other borrowings:
Notes payable	44,959		52,445		59,937
Short-term borrowings	46,280		61,809		38,798
Other	49,765		18,154		18,564
Secured borrowings	136,706		130,078		135,312
Total other borrowings	277,710		262,486		252,611
Subordinated notes	139,029		138,971		138,915
Total FHLB advances, other borrowings and subordinated notes	$	735,009	$	555,288	$	979,581

Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements

The following is a summary of these securities pledged as of June 30, 2017 disaggregated by investment category and maturity of the related customer sweep account, and reconciled to the outstanding balance of securities sold under repurchase agreements:

(Dollars in thousands)	Overnight Sweep Collateral
Available-for-sale securities pledged
Mortgage-backed securities	$	44,372
Held-to-maturity securities pledged
U.S. Government agencies	25,000
Total collateral pledged	$	69,372
Excess collateral	23,092
Securities sold under repurchase agreements	$	46,280

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Junior Subordinated Debentures (Tables)

6 Months Ended

Jun. 30, 2017

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Summary of Junior Subordinated Debentures

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2017. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure	Contractual rate at 6/30/2017		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	L+3.25	4.41	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		L+2.80	4.10	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		L+2.60	3.90	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		L+1.95	3.20	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		L+1.45	2.75	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		L+1.63	2.88	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		L+3.00	4.17	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		L+3.00	4.30	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		L+1.75	3.00	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		L+1.62	2.87	%	06/2007	09/2037	06/2012
Total					$	253,566		3.45	%

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Summary of Segment Information

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

	Three months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	166,329		$	142,251		$	24,078		17	%
Specialty Finance	28,558			24,352			4,206			17
Wealth Management	4,919			4,383			536			12
Total Operating Segments	199,806			170,986			28,820			17
Intersegment Eliminations	4,603			4,284			319			7
Consolidated net interest income	$	204,409		$	175,270		$	29,139		17	%
Non-interest income:
Community Banking	$	65,007		$	60,813		$	4,194		7	%
Specialty Finance	13,721			12,482			1,239			10
Wealth Management	20,573			19,863			710			4
Total Operating Segments	99,301			93,158			6,143			7
Intersegment Eliminations	(9,329		)	(8,359		)	(970		)	(12	)
Consolidated non-interest income	$	89,972		$	84,799		$	5,173		6	%
Net revenue:
Community Banking	$	231,336		$	203,064		$	28,272		14	%
Specialty Finance	42,279			36,834			5,445			15
Wealth Management	25,492			24,246			1,246			5
Total Operating Segments	299,107			264,144			34,963			13
Intersegment Eliminations	(4,726		)	(4,075		)	(651		)	(16	)
Consolidated net revenue	$	294,381		$	260,069		$	34,312		13	%
Segment profit:
Community Banking	$	46,026		$	34,576		$	11,450		33	%
Specialty Finance	14,849			12,044			2,805			23
Wealth Management	4,022			3,421			601			18
Consolidated net income	$	64,897		$	50,041		$	14,856		30	%
Segment assets:
Community Banking	$	22,032,302		$	20,190,707		$	1,841,595		9	%
Specialty Finance	4,255,109			3,645,077			610,032			17
Wealth Management	641,854			584,832			57,022			10
Consolidated total assets	$	26,929,265		$	24,420,616		$	2,508,649		10	%

	Six months ended						$ Change in Contribution			% Change  in Contribution
(Dollars in thousands)	June 30, 2017			June 30, 2016
Net interest income:
Community Banking	$	322,609		$	283,949		$	38,660		14	%
Specialty Finance	55,370			45,532			9,838			22
Wealth Management	9,975			8,866			1,109			13
Total Operating Segments	387,954			338,347			49,607			15
Intersegment Eliminations	9,035			8,432			603			7
Consolidated net interest income	$	396,989		$	346,779		$	50,210		14	%
Non-interest income:
Community Banking	$	107,723		$	106,480		$	1,243		1	%
Specialty Finance	27,877			24,885			2,992			12
Wealth Management	41,375			38,615			2,760			7
Total Operating Segments	176,975			169,980			6,995			4
Intersegment Eliminations	(18,238		)	(16,429		)	(1,809		)	(11	)
Consolidated non-interest income	$	158,737		$	153,551		$	5,186		3	%
Net revenue:
Community Banking	$	430,332		$	390,429		$	39,903		10	%
Specialty Finance	83,247			70,417			12,830			18
Wealth Management	51,350			47,481			3,869			8
Total Operating Segments	564,929			508,327			56,602			11
Intersegment Eliminations	(9,203		)	(7,997		)	(1,206		)	(15	)
Consolidated net revenue	$	555,726		$	500,330		$	55,396		11	%
Segment profit:
Community Banking	$	83,703		$	69,333		$	14,370		21	%
Specialty Finance	30,947			23,516			7,431			32
Wealth Management	8,625			6,303			2,322			37
Consolidated net income	$	123,275		$	99,152		$	24,123		24	%

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule Of Fair Value Of Derivative Financial Instruments

The table below presents the fair value of the Company’s derivative financial instruments as of June 30, 2017, December 31, 2016 and June 30, 2016:

	Derivative Assets						Derivative Liabilities
(Dollars in thousands)	June 30, 2017		December 31, 2016		June 30, 2016		June 30, 2017		December 31, 2016		June 30, 2016
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	8,644	$	8,011	$	12	$	—	$	—	$	1,577
Interest rate derivatives designated as Fair Value Hedges	2,074		2,228		—		26		—		999
Total derivatives designated as hedging instruments under ASC 815	$	10,718	$	10,239	$	12	$	26	$	—	$	2,576
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	35,929	$	38,974	$	89,024	$	35,317	$	37,665	$	88,316
Interest rate lock commitments	2,875		4,265		11,435		182		1,325		2,973
Forward commitments to sell mortgage loans	78		2,037		—		1,961		—		6,496
Foreign exchange contracts	103		879		581		165		849		551
Total derivatives not designated as hedging instruments under ASC 815	$	38,985	$	46,155	$	101,040	$	37,625	$	39,839	$	98,336
Total Derivatives	$	49,703	$	56,394	$	101,052	$	37,651	$	39,839	$	100,912

Schedule Of Cash Flow Hedging Instruments

The table below provides details on each of these cash flow hedges as of June 30, 2017:

	June 30, 2017
(Dollars in thousands)	Notional		Fair Value
Maturity Date	Amount		Asset (Liability)
Interest Rate Swaps:
June 2019	$	200,000	$	96
July 2019	250,000		3,750
August 2019	275,000		4,671
June 2020	200,000		122
Total Interest Rate Swaps	$	925,000	$	8,639
Interest Rate Caps:
September 2017	$	50,000	$	—
September 2017	40,000		5
Total Interest Rate Caps	$	90,000	$	5
Total Cash Flow Hedges	$	1,015,000	$	8,644

Rollforward Of Amounts In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedges

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

	Three months ended						Six months ended
(Dollars in thousands)	June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016
Unrealized gain (loss) at beginning of period	$	8,559		$	(3,051	)	$	6,944	$	(3,529	)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	821			832			1,037		1,555
Amount of (loss) gain recognized in other comprehensive income	(1,131		)	(1,355		)	268		(1,600		)
Unrealized gain (loss) at end of period	$	8,249		$	(3,574	)	$	8,249	$	(3,574	)

Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk

The following table presents the gain/(loss) and hedge ineffectiveness recognized on derivative instruments and the related hedged items that are designated as a fair value hedge accounting relationship as of June 30, 2017 and 2016:

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Three Months Ended						Amount of Gain Recognized in Income on Hedged Item Three Months Ended				Income Statement Gain due to Hedge Ineffectiveness Three Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(333	)	$	(329	)	$	373	$	346	$	40	$	17

(Dollars in thousands) Derivatives in Fair Value Hedging Relationships	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Loss Recognized in Income on Derivative Six Months Ended						Amount of Gain Recognized in Income on Hedged Item Six Months Ended				Income Statement Gain/ (Loss) due to Hedge Ineffectiveness Six Months Ended
		June 30, 2017			June 30, 2016			June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Interest rate swaps	Trading losses, net	$	(181	)	$	(883	)	$	210	$	861	$	29	$	(22	)

Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives

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

(Dollars in thousands)		Three Months Ended						Six Months Ended
Derivative	Location in income statement	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Interest rate swaps and caps	Trading losses, net	$	(365	)	$	(432	)	$	(668	)	$	(356	)
Mortgage banking derivatives	Mortgage banking revenue	(48		)	(2,707		)	690			(843		)
Covered call options	Fees from covered call options	890			4,649			1,649			6,361
Foreign exchange contracts	Trading losses, net	(64		)	(173		)	(92		)	(236		)

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)	June 30, 2017			December 31, 2016			June 30, 2016			June 30, 2017			December 31, 2016			June 30, 2016
Gross Amounts Recognized	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(15,828		)	(14,441		)	(161		)	(15,828		)	(14,441		)	(161		)
Collateral Posted (1)	(3,150		)	(8,530		)	—			(19,515		)	(12,400		)	(90,731		)
Net Credit Exposure	$	27,669		$	26,242		$	88,875		$	—		$	10,824		$	—

(1) As of June 30, 2017 and June 30, 2016, the Company posted collateral of $21.0 million and $94.2 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)	June 30, 2017			December 31, 2016			June 30, 2016			June 30, 2017			December 31, 2016			June 30, 2016
Gross Amounts Recognized	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Less: Amounts offset in the Statements of Financial Condition	—			—			—			—			—			—
Net amount presented in the Statements of Financial Condition	$	46,647		$	49,213		$	89,036		$	35,343		$	37,665		$	90,892
Gross amounts not offset in the Statements of Financial Condition
Offsetting Derivative Positions	(15,828		)	(14,441		)	(161		)	(15,828		)	(14,441		)	(161		)
Collateral Posted (1)	(3,150		)	(8,530		)	—			(19,515		)	(12,400		)	(90,731		)
Net Credit Exposure	$	27,669		$	26,242		$	88,875		$	—		$	10,824		$	—

(1) As of June 30, 2017 and June 30, 2016, the Company posted collateral of $21.0 million and $94.2 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)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Summary Of Balances Of Assets And Liabilities Measured At Fair Value On A Recurring Basis

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

	June 30, 2017
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	119,081	$	—	$	119,081	$	—
U.S. Government agencies	157,510		—		153,400		4,110
Municipal	124,120		—		46,779		77,341
Corporate notes	60,598		—		60,598		—
Mortgage-backed	1,153,290		—		1,153,290		—
Equity securities	35,037		—		35,037		—
Trading account securities	1,987		—		1,987		—
Mortgage loans held-for-sale	382,837		—		382,837		—
Loans held-for-investment	30,173		—		—		30,173
MSRs	27,307		—		—		27,307
Nonqualified deferred compensation assets	10,556		—		10,556		—
Derivative assets	49,703		—		48,656		1,047
Total	$	2,152,199	$	—	$	2,012,221	$	139,978
Derivative liabilities	$	37,651	$	—	$	37,651	$	—

	December 31, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	141,983	$	—	$	141,983	$	—
U.S. Government agencies	189,152		—		189,152		—
Municipal	131,809		—		52,183		79,626
Corporate notes	65,391		—		65,391		—
Mortgage-backed	1,161,084		—		1,161,084		—
Equity securities	35,248		—		35,248		—
Trading account securities	1,989		—		1,989		—
Mortgage loans held-for-sale	418,374		—		418,374		—
Loans held-for-investment	22,137		—		—		22,137
MSRs	19,103		—		—		19,103
Nonqualified deferred compensation assets	9,228		—		9,228		—
Derivative assets	56,394		—		54,103		2,291
Total	$	2,251,892	$	—	$	2,128,735	$	123,157
Derivative liabilities	$	39,839	$	—	$	39,839	$	—

	June 30, 2016
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	122,330	$	—	$	122,330	$	—
U.S. Government agencies	69,916		—		69,916		—
Municipal	111,640		—		41,828		69,812
Corporate notes	69,690		—		69,690		—
Mortgage-backed	207,508		—		207,508		—
Equity securities	56,579		—		31,392		25,187
Trading account securities	3,613		—		3,613		—
Mortgage loans held-for-sale	554,256		—		554,256		—
Loans held-for-investment	16,294		—		16,294		—
MSRs	13,382		—		—		13,382
Nonqualified deferred compensation assets	9,076		—		9,076		—
Derivative assets	101,052		—		91,321		9,731
Total	$	1,335,336	$	—	$	1,217,224	$	118,112
Derivative liabilities	$	100,912	$	—	$	100,912	$	—

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

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2017 and 2016 are summarized as follows:

				Equity securities		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2017	$	79,745		$	—	$	4,283		$	28,548		$	21,596	$	3,582
Total net gains (losses) included in:
Net income (1)	—			—		—			1,304			5,711		(2,535		)
Other comprehensive income (loss)	2,572			—		(173		)	—			—		—
Purchases	3,293			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(8,269		)	—		—			(2,159		)	—		—
Net transfers into/(out of) Level 3	—			—		—			2,480			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

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

				Equity securities		U.S. Government Agencies			Loans held-for- investment			Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2017	$	79,626		$	—	$	—		$	22,137		$	19,103	$	2,291
Total net gains (losses) included in:
Net income (1)	—			—		—			1,192			8,204		(1,244		)
Other comprehensive income (loss)	3,029			—		(173		)	—			—		—
Purchases	10,879			—		—			—			—		—
Issuances	—			—		—			—			—		—
Sales	—			—		—			—			—		—
Settlements	(16,193		)	—		—			(5,491		)	—		—
Net transfers into/(out of) Level 3	—			—		4,283			12,335			—		—
Balance at June 30, 2017	$	77,341		$	—	$	4,110		$	30,173		$	27,307	$	1,047

				Equity securities		U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at April 1, 2016	$	70,242		$	24,054	$	—	$	—	$	10,128	$	9,917
Total net gains (losses) included in:
Net income (1)	—			—		—		—		3,254		(186		)
Other comprehensive income	113			1,133		—		—		—		—
Purchases	1,003			—		—		—		—		—
Issuances	—			—		—		—		—		—
Sales	—			—		—		—		—		—
Settlements	(1,546		)	—		—		—		—		—
Net transfers into/(out of) Level 3	—			—		—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187	$	—	$	—	$	13,382	$	9,731

				Equity securities			U.S. Government Agencies		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(Dollars in thousands)	Municipal
Balance at January 1, 2016	$	68,613		$	25,199		$	—	$	—	$	9,092	$	7,021
Total net gains (losses) included in:
Net income (1)	—			—			—		—		4,290		2,710
Other comprehensive income (loss)	100			(12		)	—		—		—		—
Purchases	4,274			—			—		—		—		—
Issuances	—			—			—		—		—		—
Sales	—			—			—		—		—		—
Settlements	(3,175		)	—			—		—		—		—
Net transfers into/(out of) Level 3	—			—			—		—		—		—
Balance at June 30, 2016	$	69,812		$	25,187		$	—	$	—	$	13,382	$	9,731

(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 June 30, 2017.

	June 30, 2017								Three Months Ended June 30, 2017 Fair Value Losses Recognized, net		Six Months Ended June 30, 2017 Fair Value Losses Recognized, net
(Dollars in thousands)	Total		Level 1		Level 2		Level 3
Impaired loans—collateral based	$	57,259	$	—	$	—	$	57,259	$	4,609	$	6,330
Other real estate owned, including covered other real estate owned (1)	42,617		—		—		42,617		265		1,270
Total	$	99,876	$	—	$	—	$	99,876	$	4,874	$	7,600

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

Schedule Of Valuation Techniques And Significant Unobservable Inputs Used To Measure Both Recurring And Non-Recurring

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at June 30, 2017 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	$	77,341	Bond pricing	Equivalent rating	BBB-AA+	N/A		Increase
U.S. Government agencies	4,110		Bond pricing	Equivalent rating	AAA	AAA		Increase
Loans held-for-investment	30,173		Discounted cash flows	Discount rate	3%-4%	3.70%		Decrease
				Credit loss rate	0%-3%	0.89%		Decrease
				Constant prepayment rate (CPR)	9.42%	9.42%		Decrease
MSRs	27,307		Discounted cash flows	Discount rate	9%-16%	9.81%		Decrease
				Constant prepayment rate (CPR)	0%-34%	9.64%		Decrease
				Cost of servicing	$65-$75	$	65	Decrease
				Cost of servicing - delinquent	$200-$1,000	$	422	Decrease
Derivatives	1,047		Discounted cash flows	Pull-through rate	40%-100%	89.79%		Increase
Measured at fair value on a non-recurring basis:
Impaired loans—collateral based	$	57,259	Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%		Decrease
Other real estate owned, including covered other real estate owned	42,617		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 June 30, 2017				At December 31, 2016				At June 30, 2016
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	296,161	$	296,161	$	270,045	$	270,045	$	271,575	$	271,575
Interest bearing deposits with banks	1,011,635		1,011,635		980,457		980,457		693,269		693,269
Available-for-sale securities	1,649,636		1,649,636		1,724,667		1,724,667		637,663		637,663
Held-to-maturity securities	793,376		787,489		635,705		607,602		992,211		1,010,179
Trading account securities	1,987		1,987		1,989		1,989		3,613		3,613
FHLB and FRB stock, at cost	80,812		80,812		133,494		133,494		121,319		121,319
Brokerage customer receivables	23,281		23,281		25,181		25,181		26,866		26,866
Mortgage loans held-for-sale, at fair value	382,837		382,837		418,374		418,374		554,256		554,256
Loans held-for-investment, at fair value	30,173		30,173		22,137		22,137		16,294		16,294
Loans held-for-investment, at amortized cost	20,763,278		21,921,002		19,739,180		20,755,320		18,263,609		19,212,397
MSRs	27,307		27,307		19,103		19,103		13,382		13,382
Nonqualified deferred compensation assets	10,556		10,556		9,228		9,228		9,076		9,076
Derivative assets	49,703		49,703		56,394		56,394		101,052		101,052
Accrued interest receivable and other	215,291		215,291		204,513		204,513		198,017		198,017
Total financial assets	$	25,336,033	$	26,487,870	$	24,240,467	$	25,228,504	$	21,902,202	$	22,868,958
Financial Liabilities
Non-maturity deposits	$	18,086,300	$	18,086,300	$	17,383,729	$	17,383,729	$	15,958,500	$	15,958,500
Deposits with stated maturities	4,519,392		4,503,645		4,274,903		4,263,576		4,083,250		4,086,350
FHLB advances	318,270		316,799		153,831		157,051		588,055		597,568
Other borrowings	277,710		277,710		262,486		262,486		252,611		252,611
Subordinated notes	139,029		143,126		138,971		135,268		138,915		141,858
Junior subordinated debentures	253,566		253,330		253,566		254,384		253,566		254,143
Derivative liabilities	37,651		37,651		39,839		39,839		100,912		100,912
FDIC indemnification liability	15,375		15,375		16,701		16,701		11,729		11,729
Accrued interest payable	6,460		6,460		6,421		6,421		6,175		6,175
Total financial liabilities	$	23,653,753	$	23,640,396	$	22,530,447	$	22,519,455	$	21,393,713	$	21,409,846

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Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2017

Share-based Compensation [Abstract]

Weighted Average Assumptions Used To Determine The Options Fair Value

The following table presents the weighted average assumptions used to determine the fair value of options granted in the six month period ended June 30, 2016. No options were granted in the six month period ended June 30, 2017.

	Six Months Ended
	June 30,
	2016
Expected dividend yield	0.9	%
Expected volatility	25.2	%
Risk-free rate	1.3	%
Expected option life (in years)	4.5

Summary Of Stock Option Activity

A summary of the Company's stock option activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

Stock Options	Common Shares		Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value (2) ($000)
Outstanding at January 1, 2017	1,698,912		$	41.50
Granted	—		—
Exercised	(374,046	)	40.28
Forfeited or canceled	(8,173	)	42.49
Outstanding at June 30, 2017	1,316,693		$	41.84	4.4	$	45,561
Exercisable at June 30, 2017	765,711		$	41.56	3.7	$	26,707

(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.

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	558,411		40.96
Exercised	(99,760	)	37.56
Forfeited or canceled	(84,750	)	49.03
Outstanding at June 30, 2016	1,925,635		$	41.07	4.9	$	19,159
Exercisable at June 30, 2016	896,155		$	39.08	3.6	$	10,695

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

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

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

A summary of the Plans' restricted share activity for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Restricted Shares	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	133,425		$	49.94	137,593		$	49.63
Granted	13,385		72.36		14,546		43.95
Vested and issued	(10,104	)	45.55		(8,523	)	44.10
Forfeited or canceled	—		—		(504	)	44.26
Outstanding at June 30	136,706		$	52.46	143,112		$	49.40
Vested, but not issuable at June 30	89,391		$	51.55	88,696		$	51.43

A summary of the Plans' performance-based stock award activity, based on the target level of the awards, for the six months endedJune 30, 2017 and June 30, 2016 is presented below:

	Six months ended June 30, 2017				Six months ended June 30, 2016
Performance-based Stock	Common Shares		Weighted Average Grant-Date Fair Value		Common Shares		Weighted Average Grant-Date Fair Value
Outstanding at January 1	298,180		$	43.64	276,533		$	43.01
Granted	143,439		72.55		117,409		40.95
Vested and issued	(68,712	)	46.85		(78,410	)	37.90
Forfeited	(8,438	)	49.47		(13,064	)	41.13
Outstanding at June 30	364,469		$	54.28	302,468		$	43.62
Vested, but deferred at June 30	13,590		$	42.60	6,646		$	37.89

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Shareholders' Equity and Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

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

Components Of Other Comprehensive Income (Loss)

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

	Accumulated Unrealized Gains (Losses) on Securities			Accumulated Unrealized Losses on Derivative Instruments			Accumulated Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2017	$	(25,663	)	$	5,146		$	(39,307	)	$	(59,824	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	10,683			(600		)	2,833			12,916
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(29		)	413			—			384
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(13		)	—			—			(13		)
Net other comprehensive income (loss) during the period, net of tax	$	10,641		$	(187	)	$	2,833		$	13,287
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at January 1, 2017	$	(29,309	)	$	4,165		$	(40,184	)	$	(65,328	)
Other comprehensive income during the period, net of tax, before reclassifications	15,162			165			3,710			19,037
Amount reclassified from accumulated other comprehensive income into net income, net of tax	5			629			—			634
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	$	(880	)	$	—		$	—		$	(880	)
Net other comprehensive income during the period, net of tax	$	14,287		$	794		$	3,710		$	18,791
Balance at June 30, 2017	$	(15,022	)	$	4,959		$	(36,474	)	$	(46,537	)
Balance at April 1, 2016	$	(1,204	)	$	(1,903	)	$	(36,803	)	$	(39,910	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	3,724			(822		)	612			3,514
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(875		)	505			—			(370		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	2,326			—			—			2,326
Net other comprehensive income (loss) during the period, net of tax	$	5,175		$	(317	)	$	612		$	5,470
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)
Balance at January 1, 2016	$	(17,674	)	$	(2,193	)	$	(42,841	)	$	(62,708	)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	18,912			(971		)	6,650			24,591
Amount reclassified from accumulated other comprehensive income (loss) into net income, net of tax	(1,679		)	944			—			(735		)
Amount reclassified from accumulated other comprehensive income related to amortization of unrealized losses on investment securities transferred to held-to-maturity from available-for-sale, net of tax	4,412			—			—			4,412
Net other comprehensive income (loss) during the period, net of tax	$	21,645		$	(27	)	$	6,650		$	28,268
Balance at June 30, 2016	$	3,971		$	(2,220	)	$	(36,191	)	$	(34,440	)

Other Comprehensive Income Reclassified from AOCI

	Amount Reclassified from Accumulated Other Comprehensive Income for the
Details Regarding the Component of Accumulated Other Comprehensive Income	Three Months Ended						Six Months Ended						Impacted Line on the Consolidated Statements of Income
	June 30,						June 30,
	2017			2016			2017			2016
Accumulated unrealized losses on securities
Gains (losses) included in net income	$	47		$	1,440		$	(8	)	$	2,765		Gains (losses) on investment securities, net
	47			1,440			(8		)	2,765			Income before taxes
Tax effect	$	(18	)	$	(565	)	$	3		$	(1,086	)	Income tax expense
Net of tax	$	29		$	875		$	(5	)	$	1,679		Net income
Accumulated unrealized losses on derivative instruments
Amount reclassified to interest expense on deposits	$	323		$	338		$	365		$	593		Interest on deposits
Amount reclassified to interest expense on junior subordinated debentures	358			494			$	672		$	962		Interest on junior subordinated debentures
	(681		)	(832		)	(1,037		)	(1,555		)	Income before taxes
Tax effect	$	268		$	327		$	408		$	611		Income tax expense
Net of tax	$	(413	)	$	(505	)	$	(629	)	$	(944	)	Net income

Computation Of Basic And Diluted Earnings Per Common Share

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

		Three Months Ended				Six Months Ended
(In thousands, except per share data)		June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Net income		$	64,897	$	50,041	$	123,275	$	99,152
Less: Preferred stock dividends		2,050		3,628		5,678		7,256
Net income applicable to common shares—Basic	(A)	62,847		46,413		117,597		91,896
Add: Dividends on convertible preferred stock, if dilutive		—		1,578		1,578		3,156
Net income applicable to common shares—Diluted	(B)	62,847		47,991		119,175		95,052
Weighted average common shares outstanding	(C)	54,775		49,140		53,528		48,794
Effect of dilutive potential common shares
Common stock equivalents		927		856		994		778
Convertible preferred stock, if dilutive		885		3,109		1,987		3,109
Total dilutive potential common shares		1,812		3,965		2,981		3,887
Weighted average common shares and effect of dilutive potential common shares	(D)	56,587		53,105		56,509		52,681
Net income per common share:
Basic	(A/C)	$	1.15	$	0.94	$	2.20	$	1.88
Diluted	(B/D)	$	1.11	$	0.90	$	2.11	$	1.80

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Recent Accounting Developments (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2017 USD ($)
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Excess tax benefits within income tax expense from ASU 2016-09 adoption	$ 3.9

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Business Combinations (Narrative) (Detail) $ in Thousands					3 Months Ended	6 Months Ended
	Feb. 14, 2017 USD ($)	Nov. 18, 2016 USD ($) locations	Aug. 19, 2016 USD ($)	Mar. 31, 2016 USD ($) locations	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($) financial_institution
Business Acquisition [Line Items]
Number of locations | locations		2
Goodwill recorded on acquisition						$ 999
FDIC loss sharing percentage on purchased loans, OREO, and certain other assets						80.00%
Reduction in estimated loss share liability					$ (4,900)
First Community Financial Corporatiion (FCFC)
Business Acquisition [Line Items]
Effective date of acquisition		Nov. 18, 2016
Assets acquired		$ 187,200
Loans acquired		79,500
Assumed deposits		150,300
Goodwill recorded on acquisition		$ 13,000
GE Capital Franchise Finance
Business Acquisition [Line Items]
Effective date of acquisition			Aug. 19, 2016
Loans acquired			$ 561,400
Generations Bancorp Inc.
Business Acquisition [Line Items]
Effective date of acquisition				Mar. 31, 2016
Number of locations | locations				1
Assets acquired				$ 134,200
Loans acquired				67,400
Assumed deposits				100,200
Goodwill recorded on acquisition				$ 11,500
FDIC Assisted
Business Acquisition [Line Items]
Number of FDIC assisted banks acquired | financial_institution						9
American Homestead Mortgage, LLC (AHM)
Business Acquisition [Line Items]
Goodwill recorded on acquisition	$ 999

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Business Combinations (Summary of FDIC Indemnification Asset) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
FDIC Indemnification Asset [Roll Forward]
Balance at beginning of period	$ 18,263	$ 10,029	$ 16,701	$ 6,100
Reductions from reimbursable expenses	(75)	(648)	(157)	(730)
Amortization	455	506	699	866
Changes in expected reimbursements (to) from the FDIC for changes in expected credit losses and reimbursable expenses	(3,673)	1,785	(2,659)	5,073
Payments received from the FDIC	(405)	(57)	(791)	(420)
Balance at end of period	$ 15,375	$ 11,729	$ 15,375	$ 11,729

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Investment Securities (Marketable Securities) (Detail) - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	$ 1,676,137,000	$ 1,776,148,000	$ 624,188,000
Gross Unrealized Gains	8,629,000	6,929,000	15,646,000
Gross Unrealized Losses	(35,130,000)	(58,410,000)	(2,171,000)
Available-for-sale securities, at fair value	1,649,636,000	1,724,667,000	637,663,000
Held-to-maturity securities, Amortized Cost	793,376,000	635,705,000	992,211,000
Held-to-maturity securities, Gross Unrealized Gains	2,854,000	654,000	18,828,000
Held-to-maturity securities, Gross Unrealized Losses	(8,741,000)	(28,757,000)	(860,000)
Held-to-maturity securities	787,489,000	607,602,000	1,010,179,000
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	119,804,000	142,741,000	122,296,000
Gross Unrealized Gains	0	1,000	35,000
Gross Unrealized Losses	(723,000)	(759,000)	(1,000)
Available-for-sale securities, at fair value	119,081,000	141,983,000	122,330,000
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	158,162,000	189,540,000	69,678,000
Gross Unrealized Gains	22,000	47,000	238,000
Gross Unrealized Losses	(674,000)	(435,000)	0
Available-for-sale securities, at fair value	157,510,000	189,152,000	69,916,000
Held-to-maturity securities, Amortized Cost	585,071,000	433,343,000	789,482,000
Held-to-maturity securities, Gross Unrealized Gains	556,000	7,000	11,861,000
Held-to-maturity securities, Gross Unrealized Losses	(7,461,000)	(24,470,000)	(647,000)
Held-to-maturity securities	578,166,000	408,880,000	800,696,000
Municipal Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	121,610,000	129,446,000	108,179,000
Gross Unrealized Gains	2,774,000	2,969,000	3,588,000
Gross Unrealized Losses	(264,000)	(606,000)	(127,000)
Available-for-sale securities, at fair value	124,120,000	131,809,000	111,640,000
Held-to-maturity securities, Amortized Cost	208,305,000	202,362,000	202,729,000
Held-to-maturity securities, Gross Unrealized Gains	2,298,000	647,000	6,967,000
Held-to-maturity securities, Gross Unrealized Losses	(1,280,000)	(4,287,000)	(213,000)
Held-to-maturity securities	209,323,000	198,722,000	209,483,000
Corporate notes, Financial issuers
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	60,340,000	65,260,000	68,097,000
Gross Unrealized Gains	71,000	132,000	1,502,000
Gross Unrealized Losses	(810,000)	(1,000,000)	(1,411,000)
Available-for-sale securities, at fair value	59,601,000	64,392,000	68,188,000
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	1,000,000	1,000,000	1,500,000
Gross Unrealized Gains	0	0	2,000
Gross Unrealized Losses	(3,000)	(1,000)	0
Available-for-sale securities, at fair value	997,000	999,000	1,502,000
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	1,139,734,000	1,185,448,000	162,593,000
Gross Unrealized Gains	2,301,000	284,000	4,280,000
Gross Unrealized Losses	(31,704,000)	(54,330,000)	(150,000)
Available-for-sale securities, at fair value	1,110,331,000	1,131,402,000	166,723,000
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	42,845,000	30,105,000	40,419,000
Gross Unrealized Gains	433,000	67,000	457,000
Gross Unrealized Losses	(319,000)	(490,000)	(91,000)
Available-for-sale securities, at fair value	42,959,000	29,682,000	40,785,000
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	32,642,000	32,608,000	51,426,000
Gross Unrealized Gains	3,028,000	3,429,000	5,544,000
Gross Unrealized Losses	(633,000)	(789,000)	(391,000)
Available-for-sale securities, at fair value	35,037,000	35,248,000	56,579,000
Mortgage-backed securities, subprime
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, at fair value	$ 0	$ 0	$ 0

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Investment Securities (Investment Securities, Continuous Unrealized Loss Position, Fair Value) (Detail) $ in Thousands	Jun. 30, 2017 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	$ 1,372,985
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(33,652)
Continuous unrealized losses existing for greater than 12 months, Fair value	53,497
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(1,478)
Total, Fair value	1,426,482
Total, Unrealized losses	(35,130)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	437,139
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(8,741)
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	437,139
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(8,741)
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	119,081
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(723)
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	119,081
Total, Unrealized losses	(723)
U.S. Government agencies
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	152,149
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(674)
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	152,149
Total, Unrealized losses	(674)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	363,692
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(7,461)
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	363,692
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(7,461)
Municipal Securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	145,960
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(155)
Continuous unrealized losses existing for greater than 12 months, Fair value	5,852
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(109)
Total, Fair value	151,812
Total, Unrealized losses	(264)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	73,447
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,280)
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	73,447
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrealized Losses	(1,280)
Corporate notes, Financial issuers
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	35,154
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(810)
Total, Fair value	35,154
Total, Unrealized losses	(810)
Corporate notes, Other
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	997
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(3)
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	997
Total, Unrealized losses	(3)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	932,800
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(31,704)
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	932,800
Total, Unrealized losses	(31,704)
Mortgage-backed, Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	11,809
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(122)
Continuous unrealized losses existing for greater than 12 months, Fair value	7,353
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(197)
Total, Fair value	19,162
Total, Unrealized losses	(319)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Continuous unrealized losses existing for less than 12 months, Fair value	10,189
Continuous unrealized losses existing for less than 12 months, Unrealized losses	(271)
Continuous unrealized losses existing for greater than 12 months, Fair value	5,138
Continuous unrealized losses existing for greater than 12 months, Unrealized losses	(362)
Total, Fair value	15,327
Total, Unrealized losses	$ (633)

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Investment Securities (Schedule of Realized Gain (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Realized gains	$ 48	$ 1,487	$ 48	$ 4,037
Realized losses	(1)	(47)	(56)	(1,272)
Net realized gains (losses)	47	1,440	(8)	2,765
Other than temporary impairment charges	0	0	0	0
Gains (losses) on investment securities, net	47	1,440	(8)	2,765
Proceeds from sales and calls of available-for-sale securities	3,724	1,068,795	9,729	1,071,996
Proceeds from calls of held-to-maturity securities	$ 2	$ 183,738	$ 51,062	$ 281,981

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Investment Securities (Investments Classified by Contractual Maturity Date) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 125,706	$ 145,353	$ 214,917
Due in one to five years, Amortized Cost	289,688	321,019	113,263
Due in five to ten years, Amortized Cost	38,213	27,319	28,111
Due after ten years, Amortized Cost	7,309	34,296	13,459
Amortized Cost	1,676,137	1,776,148	624,188
Due in one year or less, Fair Value	125,170	145,062	215,290
Due in one to five years, Fair Value	289,243	320,423	113,395
Due in five to ten years, Fair Value	39,463	28,451	30,870
Due after ten years, Fair Value	7,433	34,399	14,021
Available-for-sale securities	1,649,636	1,724,667	637,663
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	32,925	29,794	27,505
Held-to-maturity securities, Due in five to ten years, Amortized Cost	172,398	69,664	68,691
Held-to-maturity securities, Due after ten years, Amortized Cost	588,053	536,247	896,015
Held-to-maturity securities, Amortized Cost	793,376	635,705	992,211
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	32,776	29,416	27,738
Held-to-maturity securities, Due in five to ten years, Fair Value	172,800	67,820	70,121
Held-to-maturity securities, Due after ten years, Fair Value	581,913	510,366	912,320
Held-to-maturity securities, Fair Value	787,489	607,602	1,010,179
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,182,579	1,215,553	203,012
Available-for-sale securities	1,153,290	1,161,084	207,508
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	32,642	32,608	51,426
Available-for-sale securities	$ 35,037	$ 35,248	$ 56,579

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Investment Securities (Narrative) (Detail) $ in Billions	Jun. 30, 2017 USD ($) securities	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Pledged Securities, carrying value | $	$ 1.5	$ 1.4	$ 1.4
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	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 20,743,332	$ 19,703,172	$ 18,174,655
Covered loans	50,119	58,145	105,248
Total loans	$ 20,793,451	$ 19,761,317	$ 18,279,903
Total loans, net of unearned income, excluding covered loans, percentage	100.00%	100.00%	99.00%
Covered loans, percentage	0.00%	0.00%	1.00%
Total loans, percentage	100.00%	100.00%	100.00%
Commercial
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 6,406,289	$ 6,005,422	$ 5,144,533
Total loans, net of unearned income, excluding covered loans, percentage	31.00%	30.00%	28.00%
Commercial real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 6,402,494	$ 6,196,087	$ 5,848,334
Total loans, net of unearned income, excluding covered loans, percentage	31.00%	31.00%	31.00%
Home equity
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 689,483	$ 725,793	$ 760,904
Total loans, net of unearned income, excluding covered loans, percentage	3.00%	4.00%	4.00%
Residential real estate
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 762,810	$ 705,221	$ 653,664
Total loans, net of unearned income, excluding covered loans, percentage	3.00%	4.00%	4.00%
Consumer and other
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 114,827	$ 122,041	$ 127,378
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	$ 2,648,386	$ 2,478,581	$ 2,478,280
Total loans, net of unearned income, excluding covered loans, percentage	13.00%	12.00%	14.00%
Life insurance | Premium finance receivables
Loans [Line Items]
Loans, net of unearned income, excluding covered loans	$ 3,719,043	$ 3,470,027	$ 3,161,562
Total loans, net of unearned income, excluding covered loans, percentage	18.00%	18.00%	17.00%

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Loans (Schedule of Unpaid Principal Balance And Carrying Value Of Acquired Loans) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Abstract]
Unpaid Principal Balance	$ 443,216	$ 509,446
Carrying Value	$ 412,519	$ 471,786

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Loans (Activity Related to Accretable Yield of Loans Acquired With Evidence of Credit Quality Deterioration Since Origination) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning balance	$ 45,762	$ 59,218	$ 49,408	$ 63,902
Acquisitions	(105)	125	426	1,266
Accretable yield amortized to interest income	(5,477)	(5,199)	(11,076)	(10,656)
Accretable yield amortized to indemnification asset/liability	(361)	(1,624)	(715)	(3,795)
Reclassification from non-accretable difference	3,554	2,536	6,089	6,729
Increases (decreases) in interest cash flows due to payments and changes in interest rates	2,137	574	1,378	(1,816)
Accretable yield, ending balance	45,510	$ 55,630	45,510	$ 55,630
Accretable yield, to be amortized to indemnification asset	$ 448		$ 448

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Loans (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
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	$ 6,500	$ (5,000)	$ 6,500	$ (5,000)	$ 2,600
Accretable yield amortized to interest income	(5,477)	(5,199)	(11,076)	(10,656)
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	$ 81,000	$ 64,100	$ 81,000	$ 64,100	$ 69,600

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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	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 63,801	$ 77,578	$ 79,814
90+ days and still accruing	20,712	33,738	48,492
Current	20,595,329	19,508,748	17,983,225
Loans, net of unearned income, excluding covered loans	20,743,332	19,703,172	18,174,655
Nonaccrual	61,840	75,457	77,163
90+ days and still accruing	18,208	31,246	41,682
Current	20,550,386	19,456,994	17,889,745
Covered loans, Nonaccrual	1,961	2,121	2,651
Covered loans, 90 plus days and still accruing	2,504	2,492	6,810
Covered loans, Current	44,943	51,754	93,480
Covered loans	50,119	58,145	105,248
Total loans	20,793,451	19,761,317	18,279,903
60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	16,227	43,880	76,386
60-89 days past due	16,114	43,655	75,689
Covered loans, 60-89 days past due	113	225	697
30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	97,382	97,373	91,986
30-59 days past due	96,784	95,820	90,376
Covered loans, 30-59 days past due	598	1,553	1,610
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	10,191	15,875	16,801
90+ days and still accruing	1,572	1,863	2,191
Current	6,365,092	5,967,468	5,090,741
Loans, net of unearned income, excluding covered loans	6,406,289	6,005,422	5,144,533
Commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,062	2,576	4,549
Commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	22,372	17,640	30,251
Commercial | Commercial, industrial and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	8,720	13,441	16,414
90+ days and still accruing	0	174	0
Current	4,067,237	3,716,977	3,416,432
Loans, net of unearned income, excluding covered loans	4,094,532	3,744,712	3,456,575
Commercial | Commercial, industrial and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	5,917	2,341	1,412
Commercial | Commercial, industrial and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	12,658	11,779	22,317
Commercial | Franchise
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	0	0	0
Current	838,394	869,228	289,258
Loans, net of unearned income, excluding covered loans	838,394	869,721	289,905
Commercial | Franchise | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	560
Commercial | Franchise | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	493	87
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	232,282	204,225	270,586
Loans, net of unearned income, excluding covered loans	234,643	204,225	270,586
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	2,361	0	0
Commercial | Asset-based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	936	1,924	0
90+ days and still accruing	0	0	235
Current	862,694	871,402	834,112
Loans, net of unearned income, excluding covered loans	871,906	875,070	842,667
Commercial | Asset-based lending | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	983	135	1,899
Commercial | Asset-based lending | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,293	1,609	6,421
Commercial | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	535	510	387
90+ days and still accruing	0	0	0
Current	356,009	293,073	267,639
Loans, net of unearned income, excluding covered loans	356,604	294,914	268,074
Commercial | Leases | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	48
Commercial | Leases | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	60	1,331	0
Commercial | PCI - commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	1,572	1,689	1,956
Current	8,476	12,563	12,714
Loans, net of unearned income, excluding covered loans	10,210	16,780	16,726
Commercial | PCI - commercial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	162	100	630
Commercial | PCI - commercial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	2,428	1,426
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	16,980	21,924	24,415
90+ days and still accruing	8,768	16,188	27,228
Current	6,333,055	6,110,999	5,749,268
Loans, net of unearned income, excluding covered loans	6,402,494	6,196,087	5,848,334
Commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,642	15,253	15,166
Commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	42,049	31,723	32,257
Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	2,408	2,408	673
90+ days and still accruing	0	0	0
Current	707,179	606,007	396,264
Loans, net of unearned income, excluding covered loans	709,587	610,239	404,905
Commercial real estate | Construction | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0	46
Commercial real estate | Construction | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	1,824	7,922
Commercial real estate | Land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	202	394	1,725
90+ days and still accruing	0	0	0
Current	105,496	104,219	103,816
Loans, net of unearned income, excluding covered loans	112,153	104,801	105,881
Commercial real estate | Land | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	188	0
Commercial real estate | Land | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	6,455	0	340
Commercial real estate | Office
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	4,806	4,337	6,274
90+ days and still accruing	0	0	0
Current	874,546	857,599	892,791
Loans, net of unearned income, excluding covered loans	887,684	867,674	909,453
Commercial real estate | Office | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	607	4,506	5,452
Commercial real estate | Office | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,725	1,232	4,936
Commercial real estate | Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	2,193	7,047	10,295
90+ days and still accruing	0	0	0
Current	789,889	756,602	754,647
Loans, net of unearned income, excluding covered loans	792,791	770,601	766,769
Commercial real estate | Industrial | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	4,516	1,108
Commercial real estate | Industrial | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	709	2,436	719
Commercial real estate | Retail
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,635	597	916
90+ days and still accruing	0	0	0
Current	903,778	907,872	889,945
Loans, net of unearned income, excluding covered loans	920,494	912,593	897,846
Commercial real estate | Retail | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	760	535
Commercial real estate | Retail | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	15,081	3,364	6,450
Commercial real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	354	643	90
90+ days and still accruing	0	0	0
Current	813,058	805,312	775,075
Loans, net of unearned income, excluding covered loans	814,598	807,624	778,517
Commercial real estate | Multi-family | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	322	2,077
Commercial real estate | Multi-family | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,186	1,347	1,275
Commercial real estate | Mixed use and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	5,382	6,498	4,442
90+ days and still accruing	0	0	0
Current	2,005,265	1,931,859	1,795,931
Loans, net of unearned income, excluding covered loans	2,018,950	1,952,175	1,812,665
Commercial real estate | Mixed use and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	713	1,186	4,285
Commercial real estate | Mixed use and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,590	12,632	8,007
Commercial real estate | PCI - commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	8,768	16,188	27,228
Current	133,844	141,529	140,799
Loans, net of unearned income, excluding covered loans	146,237	170,380	172,298
Commercial real estate | PCI - commercial real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	322	3,775	1,663
Commercial real estate | PCI - commercial real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,303	8,888	2,608
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,482	9,761	8,562
90+ days and still accruing	0	0	0
Current	676,288	707,887	747,253
Loans, net of unearned income, excluding covered loans	689,483	725,793	760,904
Home equity | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	855	1,630	380
Home equity | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,858	6,515	4,709
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	14,292	12,749	12,413
90+ days and still accruing	775	1,309	1,479
Current	746,170	681,956	638,106
Loans, net of unearned income, excluding covered loans	762,810	705,221	653,664
Residential real estate | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,273	936	1,367
Residential real estate | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	300	8,271	299
Premium finance receivables | Commercial insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	10,456	14,709	14,497
90+ days and still accruing	5,922	7,962	10,558
Current	2,615,344	2,435,684	2,436,803
Loans, net of unearned income, excluding covered loans	2,648,386	2,478,581	2,478,280
Premium finance receivables | Commercial insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	4,951	5,646	6,966
Premium finance receivables | Commercial insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	11,713	14,580	9,456
Premium finance receivables | Life insurance loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0	0
90+ days and still accruing	1,046	3,717	0
Current	3,474,686	3,182,935	2,811,356
Loans, net of unearned income, excluding covered loans	3,492,709	3,220,370	2,869,960
Premium finance receivables | Life insurance loans | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	17,514	46,651
Premium finance receivables | Life insurance loans | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	16,977	16,204	11,953
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	226,334	249,657	291,602
Loans, net of unearned income, excluding covered loans	226,334	249,657	291,602
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	439	439	475
90+ days and still accruing	125	207	226
Current	113,417	120,408	124,616
Loans, net of unearned income, excluding covered loans	114,827	122,041	127,378
Consumer and other | 60-89 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	331	100	610
Consumer and other | 30-59 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 515	$ 887	$ 1,451

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Summary of Performance by Loan Class) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	$ 20,743,332	$ 19,703,172	$ 18,174,655
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	6,406,289	6,005,422	5,144,533
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	6,402,494	6,196,087	5,848,334
Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	689,483	725,793	760,904
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	762,810	705,221	653,664
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	114,827	122,041	127,378
Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	4,094,532	3,744,712	3,456,575
Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	838,394	869,721	289,905
Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	234,643	204,225	270,586
Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	871,906	875,070	842,667
Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	356,604	294,914	268,074
PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	10,210	16,780	16,726
Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	709,587	610,239	404,905
Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	112,153	104,801	105,881
Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	887,684	867,674	909,453
Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	792,791	770,601	766,769
Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	920,494	912,593	897,846
Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	814,598	807,624	778,517
Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,018,950	1,952,175	1,812,665
PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	146,237	170,380	172,298
Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,648,386	2,478,581	2,478,280
Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,492,709	3,220,370	2,869,960
PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	226,334	249,657	291,602
Performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	20,674,282	19,615,718	18,086,536
Performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	6,396,098	5,989,373	5,127,497
Performing | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	6,385,514	6,174,163	5,823,919
Performing | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	680,001	716,032	752,342
Performing | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	748,339	692,472	641,251
Performing | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	114,325	121,458	126,740
Performing | Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	4,085,812	3,731,097	3,440,161
Performing | Franchise | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	838,394	869,721	289,905
Performing | Mortgage warehouse lines of credit | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	234,643	204,225	270,586
Performing | Asset-based lending | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	870,970	873,146	842,432
Performing | Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	356,069	294,404	267,687
Performing | PCI - commercial | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	10,210	16,780	16,726
Performing | Construction | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	707,179	607,831	404,232
Performing | Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	111,951	104,407	104,156
Performing | Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	882,878	863,337	903,179
Performing | Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	790,598	763,554	756,474
Performing | Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	918,859	911,996	896,930
Performing | Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	814,244	806,981	778,427
Performing | Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,013,568	1,945,677	1,808,223
Performing | PCI - commercial real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	146,237	170,380	172,298
Performing | Commercial insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,632,008	2,455,910	2,453,225
Performing | Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	3,491,663	3,216,653	2,869,960
Performing | PCI - life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	226,334	249,657	291,602
Non-performing
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	69,050	87,454	88,119
Non-performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	10,191	16,049	17,036
Non-performing | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	16,980	21,924	24,415
Non-performing | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	9,482	9,761	8,562
Non-performing | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	14,471	12,749	12,413
Non-performing | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	502	583	638
Non-performing | Commercial, industrial and other | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	8,720	13,615	16,414
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	936	1,924	235
Non-performing | Leases | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	535	510	387
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	2,408	2,408	673
Non-performing | Land | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	202	394	1,725
Non-performing | Office | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	4,806	4,337	6,274
Non-performing | Industrial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	2,193	7,047	10,295
Non-performing | Retail | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	1,635	597	916
Non-performing | Multi-family | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	354	643	90
Non-performing | Mixed use and other | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	5,382	6,498	4,442
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	16,378	22,671	25,055
Non-performing | Life insurance loans | Premium finance receivables
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income, excluding covered loans	1,046	3,717	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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	$ 125,819	$ 110,171	$ 122,291	$ 105,400
Other adjustments	(30)	(134)	(86)	(212)
Reclassification from allowance for unfunded lending-related commitments	106	(40)	(32)	(121)
Charge-offs	(6,728)	(6,097)	(10,145)	(11,571)
Recoveries	1,472	1,187	3,295	3,168
Provision for credit losses	8,952	9,269	14,268	17,692
Allowance for loan losses at period end	129,591	114,356	129,591	114,356
Allowance for unfunded lending-related commitments at period end	1,705	1,070	1,705	1,070
Allowance for credit losses at period end	131,296	115,426	131,296	115,426
Allowance for credit losses at period end, Individually evaluated for impairment	6,152	6,645	6,152	6,645
Allowance for credit losses at period end, Collectively evaluated for impairment	124,314	108,018	124,314	108,018
Loans at period end, Individually evaluated for impairment	80,072	96,836	80,072	96,836
Loans at period end, Collectively evaluated for impairment	20,245,483	17,576,641	20,245,483	17,576,641
Loans at period end, Loans held at fair value	30,173	16,294	30,173	16,294
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	830	763	830	763
Loans at period end, Loans acquired with deteriorated credit quality	387,604	484,884	387,604	484,884
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	46,582	38,435	44,493	36,135
Other adjustments	(2)	(59)	(21)	(68)
Reclassification from allowance for unfunded lending-related commitments	92	0	0	0
Charge-offs	(913)	(721)	(1,554)	(1,392)
Recoveries	561	121	834	750
Provision for credit losses	6,038	3,878	8,606	6,229
Allowance for loan losses at period end	52,358	41,654	52,358	41,654
Allowance for unfunded lending-related commitments at period end	500	0	500	0
Allowance for credit losses at period end	52,858	41,654	52,858	41,654
Allowance for credit losses at period end, Individually evaluated for impairment	2,528	3,417	2,528	3,417
Allowance for credit losses at period end, Collectively evaluated for impairment	49,692	37,571	49,692	37,571
Loans at period end, Individually evaluated for impairment	14,469	21,173	14,469	21,173
Loans at period end, Collectively evaluated for impairment	6,381,610	5,106,634	6,381,610	5,106,634
Loans at period end, Loans held at fair value	0	0	0	0
Commercial | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	638	666	638	666
Loans at period end, Loans acquired with deteriorated credit quality	10,210	16,726	10,210	16,726
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	52,633	45,263	51,422	43,758
Other adjustments	(47)	(70)	(83)	(146)
Reclassification from allowance for unfunded lending-related commitments	14	(40)	(32)	(121)
Charge-offs	(1,985)	(502)	(2,246)	(1,173)
Recoveries	276	296	830	665
Provision for credit losses	1,448	1,877	2,448	3,841
Allowance for loan losses at period end	52,339	46,824	52,339	46,824
Allowance for unfunded lending-related commitments at period end	1,205	1,070	1,205	1,070
Allowance for credit losses at period end	53,544	47,894	53,544	47,894
Allowance for credit losses at period end, Individually evaluated for impairment	1,473	2,121	1,473	2,121
Allowance for credit losses at period end, Collectively evaluated for impairment	51,952	45,736	51,952	45,736
Loans at period end, Individually evaluated for impairment	34,690	49,284	34,690	49,284
Loans at period end, Collectively evaluated for impairment	6,221,567	5,626,752	6,221,567	5,626,752
Loans at period end, Loans held at fair value	0	0	0	0
Commercial real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	119	37	119	37
Loans at period end, Loans acquired with deteriorated credit quality	146,237	172,298	146,237	172,298
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	12,203	12,915	11,774	12,012
Other adjustments	0	0	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,631)	(2,046)	(2,256)	(3,098)
Recoveries	144	71	209	119
Provision for credit losses	418	443	1,407	2,350
Allowance for loan losses at period end	11,134	11,383	11,134	11,383
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	11,134	11,383	11,134	11,383
Allowance for credit losses at period end, Individually evaluated for impairment	1,296	477	1,296	477
Allowance for credit losses at period end, Collectively evaluated for impairment	9,838	10,906	9,838	10,906
Loans at period end, Individually evaluated for impairment	9,633	8,562	9,633	8,562
Loans at period end, Collectively evaluated for impairment	679,850	752,342	679,850	752,342
Loans at period end, Loans held at fair value	0	0	0	0
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	5,530	5,164	5,714	4,734
Other adjustments	(3)	(9)	(7)	(39)
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(146)	(693)	(475)	(1,186)
Recoveries	54	31	232	143
Provision for credit losses	708	912	679	1,753
Allowance for loan losses at period end	6,143	5,405	6,143	5,405
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	6,143	5,405	6,143	5,405
Allowance for credit losses at period end, Individually evaluated for impairment	764	625	764	625
Allowance for credit losses at period end, Collectively evaluated for impairment	5,306	4,720	5,306	4,720
Loans at period end, Individually evaluated for impairment	20,859	17,281	20,859	17,281
Loans at period end, Collectively evaluated for impairment	708,042	615,831	708,042	615,831
Loans at period end, Loans held at fair value	30,173	16,294	30,173	16,294
Residential real estate | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	73	60	73	60
Loans at period end, Loans acquired with deteriorated credit quality	3,736	4,258	3,736	4,258
Premium finance receivables
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	7,559	7,205	7,625	7,233
Other adjustments	22	4	25	41
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(1,878)	(1,911)	(3,305)	(4,391)
Recoveries	404	633	1,016	1,420
Provision for credit losses	245	1,883	991	3,511
Allowance for loan losses at period end	6,352	7,814	6,352	7,814
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	6,352	7,814	6,352	7,814
Allowance for credit losses at period end, Individually evaluated for impairment	0	0	0	0
Allowance for credit losses at period end, Collectively evaluated for impairment	6,352	7,814	6,352	7,814
Loans at period end, Individually evaluated for impairment	0	0	0	0
Loans at period end, Collectively evaluated for impairment	6,141,095	5,348,240	6,141,095	5,348,240
Loans at period end, Loans held at fair value	0	0	0	0
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	226,334	291,602	226,334	291,602
Consumer and other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses at beginning of period	1,312	1,189	1,263	1,528
Other adjustments	0	0	0	0
Reclassification from allowance for unfunded lending-related commitments	0	0	0	0
Charge-offs	(175)	(224)	(309)	(331)
Recoveries	33	35	174	71
Provision for credit losses	95	276	137	8
Allowance for loan losses at period end	1,265	1,276	1,265	1,276
Allowance for unfunded lending-related commitments at period end	0	0	0	0
Allowance for credit losses at period end	1,265	1,276	1,265	1,276
Allowance for credit losses at period end, Individually evaluated for impairment	91	5	91	5
Allowance for credit losses at period end, Collectively evaluated for impairment	1,174	1,271	1,174	1,271
Loans at period end, Individually evaluated for impairment	421	536	421	536
Loans at period end, Collectively evaluated for impairment	113,319	126,842	113,319	126,842
Loans at period end, Loans held at fair value	0	0	0	0
Consumer and other | Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses at period end	0	0	0	0
Loans at period end, Loans acquired with deteriorated credit quality	$ 1,087	$ 0	$ 1,087	$ 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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Allowance for Covered Loan Losses [Roll Forward]
Balance at beginning of period	$ 1,319	$ 2,507	$ 1,322	$ 3,026
Provision for covered loan losses before benefit attributable to FDIC loss share agreements	(303)	(702)	(838)	(2,648)
Benefit attributable to FDIC loss share agreements	242	562	670	2,119
Net provision for covered loan losses	(61)	(140)	(168)	(529)
Increase/decrease in FDIC indemnification liability/asset	(242)	(562)	(670)	(2,119)
Loans charged-off	(120)	(143)	(336)	(373)
Recoveries of loans charged-off	178	750	926	2,407
Net recoveries	58	607	590	2,034
Balance at end of period	$ 1,074	$ 2,412	$ 1,074	$ 2,412

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	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance for loan loss required	$ 29,037	$ 33,146	$ 42,968
Impaired loans with no allowance for loan loss required	50,281	57,370	53,008
Total impaired loans	79,318	90,516	95,976
Allowance for loan losses related to impaired loans	5,633	6,377	6,611
Financing Receivable
Financing Receivable, Impaired [Line Items]
Allowance for loan losses related to impaired loans	953
TDRs	$ 33,091	$ 41,708	$ 49,635

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	6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 29,037	$ 42,968	$ 33,146
Impaired Financing Receivable, Related Allowance	5,633	6,611	6,377
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	50,281	53,008	57,370
Impaired Financing Receivable, Recorded Investment	79,318	95,976	90,516
Impaired Financing Receivable, Unpaid Principal Balance	90,876	114,113	103,046
Impaired Financing Receivable, Average Recorded Investment	84,874	97,879	105,423
Impaired Financing Receivable, Interest Income Recognized	2,261	2,860	5,485
Commercial | Commercial, industrial and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,969	10,253	2,601
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	3,006	12,866	2,617
Impaired Financing Receivable, Related Allowance	1,499	3,280	1,079
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	3,061	10,172	2,649
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	83	375	134
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	6,815	10,092	12,534
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	7,785	10,950	14,704
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	7,285	10,045	14,944
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	213	328	948
Commercial | Asset-based lending
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	511	0	233
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	512	0	235
Impaired Financing Receivable, Related Allowance	293	0	26
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	704	0	235
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	21	0	10
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	425	0	1,691
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	425	0	2,550
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	764	0	8,467
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	16	0	377
Commercial | Leases
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,504	387	2,441
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,508	387	2,443
Impaired Financing Receivable, Related Allowance	235	128	107
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,578	390	2,561
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	62	10	128
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	852	0	873
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	852	0	873
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	879	0	939
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	26	0	56
Commercial real estate | Construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,632	0	5,302
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	7,632	0	5,302
Impaired Financing Receivable, Related Allowance	957	0	86
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	7,665	0	5,368
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	165	0	164
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,504	2,677	4,003
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,504	2,677	4,003
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,534	2,693	4,161
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	33	77	81
Commercial real estate | Land
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,750	4,538	1,283
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,750	4,538	1,283
Impaired Financing Receivable, Related Allowance	7	18	1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,750	4,592	1,303
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	32	83	47
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,375	2,979	3,034
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,472	7,492	3,503
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,380	3,001	3,371
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	56	254	142
Commercial real estate | Office
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,314	2,401	2,687
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,418	3,059	2,697
Impaired Financing Receivable, Related Allowance	32	176	324
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,318	2,427	2,797
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	44	70	137
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,973	6,967	3,994
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	5,074	8,715	5,921
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,076	7,107	4,002
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	131	227	323
Commercial real estate | Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	7,369	5,207
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	7,773	5,843
Impaired Financing Receivable, Related Allowance	0	1,514	1,810
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	7,552	7,804
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	0	195	421
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,193	3,966	2,129
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,622	5,093	2,436
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,328	4,326	2,828
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	190	168	274
Commercial real estate | Retail
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,582	7,007	1,750
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,631	7,024	1,834
Impaired Financing Receivable, Related Allowance	130	264	170
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,596	7,064	2,039
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	40	95	101
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,188	1,122	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,273	1,122	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,188	1,129	0
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	51	27	0
Commercial real estate | Multi-family
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,513	1,274	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,513	1,274	0
Impaired Financing Receivable, Related Allowance	27	15	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,518	1,066	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	28	18	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	89	90	1,903
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	174	174	1,987
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	89	119	1,825
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	4	3	84
Commercial real estate | Mixed use and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,455	3,040	3,812
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,531	3,162	4,010
Impaired Financing Receivable, Related Allowance	302	109	592
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,478	3,063	4,038
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	35	73	195
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	7,761	5,435	6,815
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	9,299	5,960	7,388
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	8,494	5,498	6,912
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	239	159	397
Home equity
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,901	1,349	1,961
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,950	1,511	1,873
Impaired Financing Receivable, Related Allowance	1,296	477	1,233
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,920	1,443	1,969
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	35	30	75
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	7,732	7,213	8,033
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	11,260	9,674	10,483
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	8,906	8,356	8,830
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	258	219	475
Residential real estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,815	5,230	5,752
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	6,090	5,840	6,327
Impaired Financing Receivable, Related Allowance	764	625	849
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	5,731	5,289	5,816
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	118	123	261
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	15,044	12,051	11,983
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	17,068	14,180	14,124
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	15,203	11,997	12,041
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	368	308	622
Consumer and other
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	91	120	117
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	93	148	121
Impaired Financing Receivable, Related Allowance	91	5	100
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	96	123	131
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized	2	4	7
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	330	416	378
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	434	494	489
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	333	427	393
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized	$ 11	$ 14	$ 26

XML

Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Impaired Loans (Narrative) (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2016 USD ($) Loan	Dec. 31, 2016 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number	4	2	8	13	16	16
Allowance for loan losses related to impaired loans	$ 5,633,000	$ 6,611,000	$ 5,633,000	$ 6,611,000	$ 5,633,000	$ 6,611,000	$ 6,377,000
TDRs, Additions	$ 2,210,000	$ 655,000	$ 3,723,000	$ 9,378,000	7,242,000	9,801,000
Weighted average extension term	54 months	36 months	36 months	6 months
Interest-only payments, terms		6 months
Weighted average stated interest rate, basis points	1.95%	2.75%	1.84%	0.30%
Loan forgiveness	$ 0	$ 300,000	$ 0	$ 300,000
Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs	33,091,000	49,635,000	$ 33,091,000	49,635,000	33,091,000	$ 49,635,000	$ 41,708,000
TDRs, number | contracts			77
Allowance for loan losses related to impaired loans	953,000		$ 953,000		953,000
Interest income, passage of time	49,000	$ 135,000	104,000	$ 225,000
Residential Real Estate | Financing Receivable
Financing Receivable, Allowance for Credit Losses [Line Items]
Foreclosed residential properties	8,400,000		8,400,000		8,400,000
In process other real estate owned	$ 12,400,000		$ 12,400,000		$ 12,400,000

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		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2016 USD ($) Loan
Financing Receivable, Modifications [Line Items]
TDRs, number	4	2	8	13	16	16
TDRs, Additions	$ 2,210	$ 655	$ 3,723	$ 9,378	$ 7,242	$ 9,801
Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	4	2	8	12
TDRs, Additions	$ 2,210	$ 655	$ 3,723	$ 9,218
Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	3	1	5	5
TDRs, Additions	$ 2,161	$ 380	$ 2,334	$ 7,736
Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	1	0	1
TDRs, Additions	$ 0	$ 380	$ 0	$ 380
Forgiveness of Debt
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	1	0	1
TDRs, Additions	$ 0	$ 275	$ 0	$ 275
Residential real estate and other
Financing Receivable, Modifications [Line Items]
TDRs, number	4	1	6	2	11	3
TDRs, Additions	$ 2,210	$ 380	$ 2,383	$ 540	$ 2,925	$ 762
Residential real estate and other | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	4	1	6	1
TDRs, Additions	$ 2,210	$ 380	$ 2,383	$ 380
Residential real estate and other | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	3	1	5	2
TDRs, Additions	$ 2,161	$ 380	$ 2,334	$ 540
Residential real estate and other | Modification to Interest Only Payments
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	1	0	1
TDRs, Additions	$ 0	$ 380	$ 0	$ 380
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	0	1	1	2	2	2
TDRs, Additions	$ 0	$ 275	$ 95	$ 317	$ 123	$ 317
Commercial, industrial and other | Commercial | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	1	1	2
TDRs, Additions	$ 0	$ 275	$ 95	$ 317
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	1	0	1
TDRs, Additions	$ 0	$ 275	$ 0	$ 275
Office | Commercial real estate
Financing Receivable, Modifications [Line Items]
TDRs, number	0	0	0	1	0	1
TDRs, Additions	$ 0	$ 0	$ 0	$ 450	$ 0	$ 450
Office | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	1
TDRs, Additions	$ 0	$ 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	0
TDRs, Additions	$ 0	$ 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	0	6	0	6
TDRs, Additions	$ 0	$ 0	$ 0	$ 7,921	$ 0	$ 7,921
Industrial | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	6
TDRs, Additions	$ 0	$ 0	$ 0	$ 7,921
Industrial | Commercial real estate | Reduction of Interest Rate
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	0	3
TDRs, Additions	$ 0	$ 0	$ 0	$ 7,196
Industrial | 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
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	1	2	1	4
TDRs, Additions	$ 0	$ 0	$ 1,245	$ 150	$ 1,245	$ 351
Mixed use and other | Commercial real estate | Extension at Below Market Terms
Financing Receivable, Modifications [Line Items]
TDRs, number | contracts	0	0	1	2
TDRs, Additions	$ 0	$ 0	$ 1,245	$ 150
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		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($) Loan contracts	Jun. 30, 2016 USD ($) Loan contracts	Jun. 30, 2017 USD ($) Loan contracts	Jun. 30, 2016 USD ($) Loan contracts	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2016 USD ($) Loan
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	4	2	8	13	16	16
Total, Balance	$ 2,210	$ 655	$ 3,723	$ 9,378	$ 7,242	$ 9,801
Subsequent Default, Count | Loan	2	6	2	8
Subsequent Default, Balance	$ 260	$ 1,413	$ 260	$ 1,614
Commercial | Commercial, industrial and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	1	1	2	2	2
Total, Balance	$ 0	$ 275	$ 95	$ 317	$ 123	$ 317
Subsequent Default, Count | Loan	1	0	1	0
Subsequent Default, Balance	$ 28	$ 0	$ 28	$ 0
Commercial | Leases
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count | Loan					2	0
Total, Balance					$ 2,949	$ 0
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	0	1	0	1
Total, Balance	$ 0	$ 0	$ 0	$ 450	$ 0	$ 450
Subsequent Default, Count | Loan	0	1	0	1
Subsequent Default, Balance	$ 0	$ 450	$ 0	$ 450
Commercial real estate | Industrial
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	0	0	6	0	6
Total, Balance	$ 0	$ 0	$ 0	$ 7,921	$ 0	$ 7,921
Subsequent Default, Count | Loan	0	3	0	3
Subsequent Default, Balance	$ 0	$ 725	$ 0	$ 725
Commercial real estate | Mixed use and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	0	0	1	2	1	4
Total, Balance	$ 0	$ 0	$ 1,245	$ 150	$ 1,245	$ 351
Subsequent Default, Count | Loan	0	1	0	3
Subsequent Default, Balance	$ 0	$ 16	$ 0	$ 217
Residential real estate and other
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total, Count	4	1	6	2	11	3
Total, Balance	$ 2,210	$ 380	$ 2,383	$ 540	$ 2,925	$ 762
Subsequent Default, Count | Loan	1	1	1	1
Subsequent Default, Balance	$ 232	$ 222	$ 232	$ 222

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Goodwill And Other Intangible Assets (Goodwill Assets by Business Segment) (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 498,587
Goodwill Acquired	999
Impairment Loss	0
Goodwill Adjustments	674
Ending balance	500,260
Community banking
Goodwill [Roll Forward]
Beginning balance	427,781
Goodwill Acquired	999
Impairment Loss	0
Goodwill Adjustments	(152)
Ending balance	428,628
Specialty finance
Goodwill [Roll Forward]
Beginning balance	38,692
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	826
Ending balance	39,518
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 (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase due to foreign currency translation adjustments			$ 674
Amortization of other intangible assets	$ 1,141	$ 1,248	2,305	$ 2,546
Community banking
Indefinite-lived Intangible Assets [Line Items]
Goodwill increase			847
Goodwill increase due to foreign currency translation adjustments			$ (152)
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			$ 826
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

Goodwill And Other Intangible Assets (Summary of Finite-Lived Intangible Assets) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	$ 19,546	$ 21,851	$ 21,821
Core deposit intangibles | Community banking
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	37,272	37,272	34,998
Accumulated amortization	(23,632)	(21,614)	(19,654)
Net carrying amount	13,640	15,658	15,344
Customer list intangibles | Specialty finance
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,800	1,800	1,800
Accumulated amortization	(1,221)	(1,159)	(1,100)
Net carrying amount	579	641	700
Customer list and other intangibles | Wealth management
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,940	7,940	7,940
Accumulated amortization	(2,613)	(2,388)	(2,163)
Net carrying amount	$ 5,327	$ 5,552	$ 5,777

XML

Goodwill And Other Intangible Assets (Estimated Amortization) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Actual in six months ended June 30, 2017	$ 1,141	$ 1,248	$ 2,305	$ 2,546
Estimated remaining in 2017	2,086		2,086
Estimated—2018	3,778		3,778
Estimated—2019	3,206		3,206
Estimated—2020	2,580		2,580
Estimated—2021	$ 2,039		$ 2,039

XML

Deposits (Summary of Deposits) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Balance:
Non-interest bearing	$ 6,294,052	$ 5,927,377	$ 5,367,672
NOW and interest bearing demand deposits	2,459,238	2,624,442	2,450,710
Wealth management deposits	2,464,162	2,209,617	1,904,121
Money market	4,449,385	4,441,811	4,384,134
Savings	2,419,463	2,180,482	1,851,863
Time certificates of deposit	4,519,392	4,274,903	4,083,250
Total deposits	$ 22,605,692	$ 21,658,632	$ 20,041,750
Mix:
Non-interest bearing	28.00%	27.00%	27.00%
NOW and interest bearing demand deposits	11.00%	12.00%	12.00%
Wealth management deposits	11.00%	10.00%	10.00%
Money market	19.00%	21.00%	22.00%
Savings	11.00%	10.00%	9.00%
Time certificates of deposit	20.00%	20.00%	20.00%
Total deposits	100.00%	100.00%	100.00%

XML

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Debt Disclosure [Abstract]
FHLB advances	$ 318,270	$ 153,831	$ 588,055
Other borrowings:
Notes payable	44,959	52,445	59,937
Short-term borrowings	46,280	61,809	38,798
Other	49,765	18,154	18,564
Secured borrowings	136,706	130,078	135,312
Total other borrowings	277,710	262,486	252,611
Subordinated notes	139,029	138,971	138,915
Total FHLB advances, other borrowings and subordinated notes	$ 735,009	$ 555,288	$ 979,581

XML

Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Narrative) (Details) CAD in Millions	1 Months Ended		6 Months Ended
	Dec. 31, 2015 CAD	Dec. 31, 2014 CAD	Jun. 30, 2017 USD ($) Rate	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CAD	Jun. 30, 2016 USD ($)	Jun. 15, 2015 USD ($)
Debt Instrument [Line Items]
Notes payable			$ 44,959,000	$ 52,445,000		$ 59,937,000
Loan agreement with unaffiliated banks			150,000,000
Short-term borrowings			46,280,000	61,809,000		38,798,000
Securities sold under agreements to repurchase			46,280,000
Other			49,765,000	18,154,000		18,564,000
Secured borrowings			136,706,000	130,078,000		135,312,000
Subordinated notes			$ 139,029,000	138,971,000		138,915,000
Loans Payable
Debt Instrument [Line Items]
Debt instrument, Issuance date			Dec. 15, 2014
Term Facility
Debt Instrument [Line Items]
Notes payable			$ 45,000,000	52,400,000		59,900,000	$ 75,000,000
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
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			$ 46,300,000	61,800,000		38,800,000
Pledged financial instruments, Not separately reported, Securities for repurchase agreements			$ 69,400,000
Fixed Rate Promissory Note
Debt Instrument [Line Items]
Debt instrument, Issuance date			Jun. 30, 2017
Maturity date			Jun. 30, 2022
Debt instrument, Frequency of periodic payment			monthly
Other			$ 49,500,000	17,700,000		18,000,000
Contractual rate			3.36%
Non Recourse Debt
Debt Instrument [Line Items]
Other			$ 300,000	447,000		591,000
Secured Debt
Debt Instrument [Line Items]
Secured borrowings			$ 13,300,000
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 | Secured Debt
Debt Instrument [Line Items]
Maturity date	Dec. 15, 2017	Dec. 15, 2015
Contractual rate			1.6431%
Secured borrowings		CAD 150	$ 123,400,000	$ 119,000,000	CAD 160	$ 123,700,000
Additional amount paid by third party | CAD	CAD 10

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	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess pledged collateral	$ 23,092
Securities sold under agreements to repurchase	46,280
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	69,400
Securities sold under agreements to repurchase	46,300	$ 61,800	$ 38,800
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	69,372
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	44,372
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	$ 25,000

XML

Junior Subordinated Debentures (Narrative) (Detail)		6 Months Ended
	Jan. 22, 2016 USD ($)	Jun. 30, 2017 USD ($) trust Rate	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jan. 31, 2016 USD ($)	Aug. 31, 2005 USD ($)
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	$ 253,566,000	$ 253,566,000
Gains on early extinguishment of debt		0	$ 4,305,000
Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Trust Preferred Securities		25,000,000			$ 15,000,000.0	$ 40,000,000.0
Junior subordinated debentures		$ 26,238,000			$ 15,000,000
Gains on early extinguishment of debt	$ 4,300,000
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt, weighted average interest rate | Rate		3.45%
Debt, Hedge Adjusted Weighted Average Interest Rate | Rate		3.59%
Tier One Risk Based Capital		$ 0
Tier Two Risk Based Capital		$ 245,500,000
Junior Subordinated Debt | Maximum
Subordinated Borrowing [Line Items]
Period of deferred payment, not to exceed		60 months

XML

Junior Subordinated Debentures (Summary of Junior Subordinated Debentures) (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Jan. 31, 2016	Aug. 31, 2005
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566,000	$ 253,566,000	$ 253,566,000
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	4.41%
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	4.10%
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	3.90%
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	3.20%
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	2.75%
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	2.88%
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	4.17%
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	4.17%
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	4.30%
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	3.00%
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	2.87%
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	3.45%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust III
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.25%
London Interbank Offered Rate (LIBOR) | Wintrust Statutory Trust IV
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	2.80%
London Interbank Offered Rate (LIBOR) | Wintrust Statutory Trust V
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	2.60%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust VII
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.95%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.45%
London Interbank Offered Rate (LIBOR) | Wintrust Capital Trust IX
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.63%
London Interbank Offered Rate (LIBOR) | Northview Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%
London Interbank Offered Rate (LIBOR) | Town Bankshares Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%
London Interbank Offered Rate (LIBOR) | First Northwest Capital Trust I
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	3.00%
London Interbank Offered Rate (LIBOR) | Suburban Illinois Capital Trust II
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.75%
London Interbank Offered Rate (LIBOR) | Community Financial Shares Statutory Trust II
Subordinated Borrowing [Line Items]
Rate Structure, Incremental interest rate over base rate	1.62%

XML

Segment Information (Narrative) (Detail)	6 Months Ended
	Jun. 30, 2017 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

XML

Segment Information (Summary of Segment Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net interest income	$ 204,409	$ 175,270	$ 396,989	$ 346,779
Net interest income, Change in Contribution	$ 29,139		$ 50,210
Net interest income, Change in Contribution Percentage	17.00%		14.00%
Non-interest income	$ 89,972	84,799	$ 158,737	153,551
Non-interest income, Change in Contribution	$ 5,173		$ 5,186
Non-interest income, Change in Contribution Percentage	6.00%		3.00%
Net revenue	$ 294,381	260,069	$ 555,726	500,330
Net revenue, Change in Contribution	$ 34,312		$ 55,396
Net revenue, Change in Contribution Percentage	13.00%		11.00%
Segment profit	$ 64,897	50,041	$ 123,275	99,152
Segment profit, Change in Contribution	$ 14,856		$ 24,123
Segment profit, Change in Contribution Percentage	30.00%		24.00%
Segment assets	$ 26,929,265	24,420,616	$ 26,929,265	24,420,616	$ 25,668,553
Segment assets, Change in Contribution	$ 2,508,649
Segment assets, Change in Contribution Percentage	10.00%
Operating Segments
Segment Reporting Information [Line Items]
Net interest income	$ 199,806	170,986	387,954	338,347
Net interest income, Change in Contribution	$ 28,820		$ 49,607
Net interest income, Change in Contribution Percentage	17.00%		15.00%
Non-interest income	$ 99,301	93,158	$ 176,975	169,980
Non-interest income, Change in Contribution	$ 6,143		$ 6,995
Non-interest income, Change in Contribution Percentage	7.00%		4.00%
Net revenue	$ 299,107	264,144	$ 564,929	508,327
Net revenue, Change in Contribution	$ 34,963		$ 56,602
Net revenue, Change in Contribution Percentage	13.00%		11.00%
Operating Segments | Community banking
Segment Reporting Information [Line Items]
Net interest income	$ 166,329	142,251	$ 322,609	283,949
Net interest income, Change in Contribution	$ 24,078		$ 38,660
Net interest income, Change in Contribution Percentage	17.00%		14.00%
Non-interest income	$ 65,007	60,813	$ 107,723	106,480
Non-interest income, Change in Contribution	$ 4,194		$ 1,243
Non-interest income, Change in Contribution Percentage	7.00%		1.00%
Net revenue	$ 231,336	203,064	$ 430,332	390,429
Net revenue, Change in Contribution	$ 28,272		$ 39,903
Net revenue, Change in Contribution Percentage	14.00%		10.00%
Segment profit	$ 46,026	34,576	$ 83,703	69,333
Segment profit, Change in Contribution	$ 11,450		$ 14,370
Segment profit, Change in Contribution Percentage	33.00%		21.00%
Segment assets	$ 22,032,302	20,190,707	$ 22,032,302	20,190,707
Segment assets, Change in Contribution	$ 1,841,595
Segment assets, Change in Contribution Percentage	9.00%
Operating Segments | Specialty finance
Segment Reporting Information [Line Items]
Net interest income	$ 28,558	24,352	55,370	45,532
Net interest income, Change in Contribution	$ 4,206		$ 9,838
Net interest income, Change in Contribution Percentage	17.00%		22.00%
Non-interest income	$ 13,721	12,482	$ 27,877	24,885
Non-interest income, Change in Contribution	$ 1,239		$ 2,992
Non-interest income, Change in Contribution Percentage	10.00%		12.00%
Net revenue	$ 42,279	36,834	$ 83,247	70,417
Net revenue, Change in Contribution	$ 5,445		$ 12,830
Net revenue, Change in Contribution Percentage	15.00%		18.00%
Segment profit	$ 14,849	12,044	$ 30,947	23,516
Segment profit, Change in Contribution	$ 2,805		$ 7,431
Segment profit, Change in Contribution Percentage	23.00%		32.00%
Segment assets	$ 4,255,109	3,645,077	$ 4,255,109	3,645,077
Segment assets, Change in Contribution	$ 610,032
Segment assets, Change in Contribution Percentage	17.00%
Operating Segments | Wealth management
Segment Reporting Information [Line Items]
Net interest income	$ 4,919	4,383	9,975	8,866
Net interest income, Change in Contribution	$ 536		$ 1,109
Net interest income, Change in Contribution Percentage	12.00%		13.00%
Non-interest income	$ 20,573	19,863	$ 41,375	38,615
Non-interest income, Change in Contribution	$ 710		$ 2,760
Non-interest income, Change in Contribution Percentage	4.00%		7.00%
Net revenue	$ 25,492	24,246	$ 51,350	47,481
Net revenue, Change in Contribution	$ 1,246		$ 3,869
Net revenue, Change in Contribution Percentage	5.00%		8.00%
Segment profit	$ 4,022	3,421	$ 8,625	6,303
Segment profit, Change in Contribution	$ 601		$ 2,322
Segment profit, Change in Contribution Percentage	18.00%		37.00%
Segment assets	$ 641,854	584,832	$ 641,854	584,832
Segment assets, Change in Contribution	$ 57,022
Segment assets, Change in Contribution Percentage	10.00%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net interest income	$ 4,603	4,284	9,035	8,432
Net interest income, Change in Contribution	$ 319		$ 603
Net interest income, Change in Contribution Percentage	7.00%		7.00%
Non-interest income	$ (9,329)	(8,359)	$ (18,238)	(16,429)
Non-interest income, Change in Contribution	$ (970)		$ (1,809)
Non-interest income, Change in Contribution Percentage	(12.00%)		(11.00%)
Net revenue	$ (4,726)	$ (4,075)	$ (9,203)	$ (7,997)
Net revenue, Change in Contribution	$ (651)		$ (1,206)
Net revenue, Change in Contribution Percentage	(16.00%)		(15.00%)

XML

Derivative Financial Instruments (Schedule Of Fair Value Of Derivative Financial Instruments) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Derivative [Line Items]
Derivative assets	$ 49,703	$ 56,394	$ 101,052
Derivative liabilities	37,651	39,839	100,912
Interest Rate Contract
Derivative [Line Items]
Derivative assets	46,647	49,213	89,036
Derivative liabilities	35,343	37,665	90,892
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	10,718	10,239	12
Derivative liabilities	26	0	2,576
Designated as Hedging Instrument | Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative assets	8,644	8,011	12
Derivative liabilities	0	0	1,577
Designated as Hedging Instrument | Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Derivative assets	2,074	2,228	0
Derivative liabilities	26	0	999
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	38,985	46,155	101,040
Derivative liabilities	37,625	39,839	98,336
Not Designated as Hedging Instrument | Interest Rate Contract
Derivative [Line Items]
Derivative assets	35,929	38,974	89,024
Derivative liabilities	35,317	37,665	88,316
Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivative [Line Items]
Derivative assets	2,875	4,265	11,435
Derivative liabilities	182	1,325	2,973
Not Designated as Hedging Instrument | Forward Commitments to Sell Mortgage Loans
Derivative [Line Items]
Derivative assets	78	2,037	0
Derivative liabilities	1,961	0	6,496
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative assets	103	879	581
Derivative liabilities	$ 165	$ 849	$ 551

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Derivative Financial Instruments (Narrative) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) derivative_instruments	Jun. 30, 2016 USD ($) derivative_instruments	Jun. 30, 2017 USD ($) derivative_instruments	Jun. 30, 2016 USD ($) derivative_instruments	Dec. 31, 2016 derivative_instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income to interest expense in the next twelve months			$ 2,300,000
Derivative, Net Liability Position, Aggregate Fair Value	$ 11,300,000		11,300,000
Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	4,800,000,000		4,800,000,000
Forward Commitments to Sell Mortgage Loans | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	824,300,000		824,300,000
Interest Rate Lock Commitments | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	446,200,000		446,200,000
Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 39,700,000		$ 39,700,000
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			Jul. 31, 2017
Maximum | Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, maturity date			Feb. 28, 2045
Cash Flow Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net			$ 0	$ 0
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	4		4
Cash Flow Hedging | Interest Rate Swap, $200 million, June 2019 | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 200,000,000		$ 200,000,000
Cash Flow Hedging | Interest Rate Swap, $200 million, June 2019 | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	200,000,000		200,000,000
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 | Interest Rate Swap, $200 million, June 2020 | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	200,000,000		200,000,000
Cash Flow Hedging | Interest Rate Swap, $200 million, June 2020 | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 200,000,000		$ 200,000,000
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
Fair Value Hedging | Interest Rate Swap | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Number of Interest Rate Derivatives Held | derivative_instruments	11		11
Notional amount	$ 121,100,000		$ 121,100,000
Fair Value Hedging | Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 40,000	$ 17,000	$ 29,000	$ (22,000)

XML

Derivative Financial Instruments (Schedule Of Cash Flow Hedging Instruments) (Detail) - Cash Flow Hedging - Designated as Hedging Instrument $ in Thousands	Jun. 30, 2017 USD ($)
Interest Rate Swap, $200 million, June 2019
Derivative [Line Items]
Notional amount	$ 200,000
Fair Value Asset (Liability)	96
Interest Rate Swap, $250 million, July 2019
Derivative [Line Items]
Notional amount	250,000
Fair Value Asset (Liability)	3,750
Interest Rate Swap, $275 million, August 2019
Derivative [Line Items]
Notional amount	275,000
Fair Value Asset (Liability)	4,671
Interest Rate Swap, $200 million, June 2020
Derivative [Line Items]
Notional amount	200,000
Fair Value Asset (Liability)	122
Total Interest Rate Swap
Derivative [Line Items]
Notional amount	925,000
Fair Value Asset (Liability)	8,639
Interest Rate Cap, $50 million, September 2017
Derivative [Line Items]
Notional amount	50,000
Fair Value Asset (Liability)	0
Interest Rate Cap, $40 million, September 2017
Derivative [Line Items]
Notional amount	40,000
Fair Value Asset (Liability)	5
Total Interest Rate Cap
Derivative [Line Items]
Notional amount	90,000
Fair Value Asset (Liability)	5
Interest Rate Swaps and Caps
Derivative [Line Items]
Notional amount	1,015,000
Fair Value Asset (Liability)	$ 8,644

XML

Derivative Financial Instruments (Rollforward Of Amounts In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedges) (Detail) - Interest Rate Contract - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Rollforward of AOCI from Cash Flow Hedging Derivatives [Roll Forward]
Unrealized gain (loss) at beginning of period	$ 8,559	$ (3,051)	$ 6,944	$ (3,529)
Amount reclassified from accumulated other comprehensive loss to interest expense on deposits and junior subordinated debentures	821	832	1,037	1,555
Amount of (loss) gain recognized in other comprehensive income	1,131	1,355	(268)	1,600
Unrealized gain (loss) at end of period	$ 8,249	$ (3,574)	$ 8,249	$ (3,574)

XML

Derivative Financial Instruments (Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk) (Detail) - Fair Value Hedging - Designated as Hedging Instrument - Interest Rate Contract - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ (333)	$ (329)	$ (181)	$ (883)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	373	346	210	861
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 40	$ 17	$ 29	$ (22)

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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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest Rate Swaps and Caps | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (365)	$ (432)	$ (668)	$ (356)
Mortgage Banking Derivatives | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	(48)	(2,707)	690	(843)
Covered Call Options | Fees from covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	890	4,649	1,649	6,361
Foreign Exchange Contract | Trading (losses) gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (64)	$ (173)	$ (92)	$ (236)

XML

Derivative Financial Instruments (Derivative Asset and Liability Balance Sheet Offsetting) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Offsetting Assets [Line Items]
Net amount presented in the Statements of Financial Condition	$ 49,703	$ 56,394	$ 101,052
Derivative Liabilities
Net amount presented in the Statements of Financial Condition	37,651	39,839	100,912
Interest Rate Contract
Offsetting Assets [Line Items]
Gross Amounts Recognized	46,647	49,213	89,036
Less: Amounts offset in the Statements of Financial Condition	0	0	0
Net amount presented in the Statements of Financial Condition	46,647	49,213	89,036
Offsetting Derivative Positions	(15,828)	(14,441)	(161)
Collateral Posted	(3,150)	(8,530)	0
Net Credit Exposure	27,669	26,242	88,875
Derivative Liabilities
Gross Amounts Recognized	35,343	37,665	90,892
Less: Amounts offset in the Statements of Financial Condition	0	0	0
Net amount presented in the Statements of Financial Condition	35,343	37,665	90,892
Offsetting Derivative Positions	(15,828)	(14,441)	(161)
Collateral Posted	(19,515)	(12,400)	(90,731)
Net Credit Exposure	0	$ 10,824	0
Collateral posted which resulted in excess collateral with counterparties	$ 21,000		$ 94,200

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	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 1,649,636	$ 1,724,667	$ 637,663
Trading account securities	1,987	1,989	3,613
Mortgage loans held-for-sale	382,837	418,374	554,256
Loans held-for-investment	30,173		16,294
Derivative assets	49,703	56,394	101,052
Derivative liabilities	37,651	39,839	100,912
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	119,081	141,983	122,330
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	157,510	189,152	69,916
Municipal Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	124,120	131,809	111,640
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,153,290	1,161,084	207,508
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	35,037	35,248	56,579
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,987	1,989	3,613
Mortgage loans held-for-sale	382,837	418,374	554,256
Loans held-for-investment	30,173	22,137	16,294
MSRs	27,307	19,103	13,382
Nonqualified deferred compensation assets	10,556	9,228	9,076
Derivative assets	49,703	56,394	101,052
Total	2,152,199	2,251,892	1,335,336
Derivative liabilities	37,651	39,839	100,912
Fair Value, Measurements, Recurring | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	119,081	141,983	122,330
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	157,510	189,152	69,916
Fair Value, Measurements, Recurring | Municipal Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	124,120	131,809	111,640
Fair Value, Measurements, Recurring | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	60,598	65,391	69,690
Fair Value, Measurements, Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,153,290	1,161,084	207,508
Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	35,037	35,248	56,579
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-investment		0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	1,987	1,989	3,613
Mortgage loans held-for-sale	382,837	418,374	554,256
Loans held-for-investment	0	0	16,294
MSRs	0	0	0
Nonqualified deferred compensation assets	10,556	9,228	9,076
Derivative assets	48,656	54,103	91,321
Total	2,012,221	2,128,735	1,217,224
Derivative liabilities	37,651	39,839	100,912
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	119,081	141,983	122,330
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	153,400	189,152	69,916
Fair Value, Measurements, Recurring | Level 2 | Municipal Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	46,779	52,183	41,828
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	60,598	65,391	69,690
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	1,153,290	1,161,084	207,508
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	35,037	35,248	31,392
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
Loans held-for-investment	30,173	22,137	0
MSRs	27,307	19,103	13,382
Nonqualified deferred compensation assets	0	0	0
Derivative assets	1,047	2,291	9,731
Total	139,978	123,157	118,112
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	4,110	0	0
Fair Value, Measurements, Recurring | Level 3 | Municipal Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	77,341	79,626	69,812
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	$ 0	$ 25,187

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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Loans held-for- investment
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 28,548	$ 0	$ 22,137	$ 0
Total net gains (losses) included in Net income	1,304	0	1,192	0
Total net gains (losses) included in Other comprehensive income	0	0	0	0
Purchases	0	0	0	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	(2,159)	0	(5,491)	0
Net transfers into/(out of) Level 3	2,480	0	12,335	0
Ending Balance	30,173	0	30,173	0
Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	21,596	10,128	19,103	9,092
Total net gains (losses) included in Net income	5,711	3,254	8,204	4,290
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	27,307	13,382	27,307	13,382
Derivatives
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	3,582	9,917	2,291	7,021
Total net gains (losses) included in Net income	(2,535)	(186)	(1,244)	2,710
Total net gains (losses) included in Other comprehensive income	0	0	0	0
Purchases	0	0	0	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Net transfers into/(out of) Level 3	0	0	0	0
Ending Balance	1,047	9,731	1,047	9,731
Municipal Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	79,745	70,242	79,626	68,613
Total net gains (losses) included in Net income		0		0
Total net gains (losses) included in Other comprehensive income	2,572	113	3,029	100
Purchases	3,293	1,003	10,879	4,274
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	(8,269)	(1,546)	(16,193)	(3,175)
Net transfers into/(out of) Level 3		0		0
Ending Balance	77,341	69,812	77,341	69,812
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	0	24,054	0	25,199
Total net gains (losses) included in Net income		0		0
Total net gains (losses) included in Other comprehensive income	0	1,133	0	(12)
Purchases		0		0
Issuances	0	0	0	0
Settlements		0		0
Net transfers into/(out of) Level 3	0	0	0	0
Ending Balance	0	25,187	0	25,187
U.S. Government agencies
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	4,283	0	0	0
Total net gains (losses) included in Net income	0	0	0	0
Total net gains (losses) included in Other comprehensive income	(173)	0	(173)	0
Purchases	0	0	0	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Net transfers into/(out of) Level 3	0	0	4,283	0
Ending Balance	$ 4,110	$ 0	$ 4,110	$ 0

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	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	$ 79,318	$ 79,318	$ 90,516	$ 95,976
Fair Value Losses Recognized, Impaired loans—collateral based	4,609	6,330
Fair Value Losses Recognized, Other real estate owned	265	1,270
Fair Value Losses Recognized, Total	4,874	7,600
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	57,259	57,259
Other real estate owned, including covered other real estate owned	42,617	42,617
Total	99,876	99,876
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, including covered 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, including covered 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	57,259	57,259
Other real estate owned, including covered other real estate owned	42,617	42,617
Total	$ 99,876	$ 99,876

XML

Fair Values of Assets and Liabilities (Schedule of Valuation Techniques and Significant Unobservable Inputs Used to Measure Both Recurring and Non-Recurring) (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) $ / Loan	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 1,649,636	$ 1,724,667	$ 637,663
Loans held-for-investment	30,173		16,294
Derivative assets	49,703	56,394	101,052
Impaired loans—collateral based	$ 79,318	90,516	95,976
Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pull-through rate	40.00%
Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pull-through rate	100.00%
Other real estate owned, including covered other real estate owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Appraisal adjustment - cost of sale	10.00%
Municipal Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 124,120	131,809	111,640
U.S. Government agencies
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	157,510	189,152	69,916
Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held-for-investment	30,173	22,137	16,294
MSRs	27,307	19,103	13,382
Derivative assets	49,703	56,394	101,052
Fair Value, Measurements, Recurring | Municipal Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	124,120	131,809	111,640
Fair Value, Measurements, Recurring | U.S. Government agencies
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	157,510	189,152	69,916
Fair Value, Measurements, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based	57,259
Other real estate owned, including covered other real estate owned	42,617
Level 3 | Fair Value, Measurements, Recurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Loans held-for-investment	30,173	22,137	0
MSRs	27,307	19,103	13,382
Derivative assets	$ 1,047	2,291	9,731
Level 3 | Fair Value, Measurements, Recurring | Loans held-for- investment
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Constant prepayment rate (CPR)	9.42%
Level 3 | Fair Value, Measurements, Recurring | Loans held-for- investment | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	3.70%
Credit loss rate	0.89%
Level 3 | Fair Value, Measurements, Recurring | Loans held-for- investment | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	3.00%
Credit loss rate	0.00%
Level 3 | Fair Value, Measurements, Recurring | Loans held-for- investment | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	4.00%
Credit loss rate	3.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	9.81%
Constant prepayment rate (CPR)	9.64%
Cost of servicing (in dollars per loan) | $ / Loan	65
Cost of servicing - delinquent (in dollars per loan) | $ / Loan	422
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	9.00%
Constant prepayment rate (CPR)	0.00%
Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	16.00%
Constant prepayment rate (CPR)	34.00%
Level 3 | Fair Value, Measurements, Recurring | Municipal Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	$ 77,341	79,626	69,812
Level 3 | Fair Value, Measurements, Recurring | U.S. Government agencies
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale securities	4,110	$ 0	$ 0
Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans—collateral based	57,259
Other real estate owned, including covered other real estate owned	$ 42,617
Bond pricing | Level 3 | Fair Value, Measurements, Recurring | Municipal Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
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
Bond pricing | Level 3 | Fair Value, Measurements, Recurring | U.S. Government agencies
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Bond pricing
Significant Unobservable Input	Equivalent rating
Range of Inputs	AAA
Impact to valuation from an increased or higher input value	Increase
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for- investment
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Discounted cash flows
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Discount rate
Range of Inputs	3%-4%
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Discount Rate | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	3.70%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Discount Rate | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	3.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Discount Rate | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	4.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Credit Spread
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Credit loss rate
Range of Inputs	0%-3%
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Credit Spread | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Credit loss rate	0.89%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Credit Spread | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Credit loss rate	0.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Credit Spread | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Credit loss rate	3.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Constant Prepayment Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Constant prepayment rate (CPR)
Constant prepayment rate (CPR)	9.42%
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment Constant Prepayment Rate | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Constant prepayment rate (CPR)	9.42%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Discounted cash flows
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Discount rate
Range of Inputs	9%-16%
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	9.81%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	9.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Discount Rate | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount rate	16.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Constant prepayment rate (CPR)
Range of Inputs	0%-34%
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Constant prepayment rate (CPR)	9.64%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Constant prepayment rate (CPR)	0.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Prepayment Rate | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Constant prepayment rate (CPR)	34.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Cost of servicing
Range of Inputs	$65-$75
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing (in dollars per loan) | $ / Loan	65
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing (in dollars per loan) | $ / Loan	65
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing (in dollars per loan) | $ / Loan	75
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing - delinquent
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Significant Unobservable Input	Cost of servicing - delinquent
Range of Inputs	$200-$1,000
Impact to valuation from an increased or higher input value	Decrease
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing - delinquent | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing - delinquent (in dollars per loan) | $ / Loan	422
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing - delinquent | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing - delinquent (in dollars per loan) | $ / Loan	200
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Mortgage Servicing Rights Cost of servicing - delinquent | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cost of servicing - delinquent (in dollars per loan) | $ / Loan	1,000
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Derivatives
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Discounted cash flows
Significant Unobservable Input	Pull-through rate
Range of Inputs	40%-100%
Impact to valuation from an increased or higher input value	Increase
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Derivatives | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pull-through rate	89.79%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Derivatives | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pull-through rate	40.00%
Discounted cash flows | Level 3 | Fair Value, Measurements, Recurring | Derivatives | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pull-through rate	100.00%
Appraisal value | Level 3 | Fair Value, Measurements, Nonrecurring | Impaired loans—collateral based
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Appraisal value
Significant Unobservable Input	Appraisal adjustment - cost of sale
Range of Inputs	10%
Appraisal adjustment - cost of sale	10.00%
Impact to valuation from an increased or higher input value	Decrease
Appraisal value | Level 3 | Fair Value, Measurements, Nonrecurring | Impaired loans—collateral based | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Appraisal adjustment - cost of sale	10.00%
Appraisal value | Level 3 | Fair Value, Measurements, Nonrecurring | Other real estate owned, including covered other real estate owned
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Methodology	Appraisal value
Significant Unobservable Input	Appraisal adjustment - cost of sale
Range of Inputs	10%
Appraisal adjustment - cost of sale	10.00%
Impact to valuation from an increased or higher input value	Decrease
Appraisal value | Level 3 | Fair Value, Measurements, Nonrecurring | Other real estate owned, including covered other real estate owned | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Appraisal adjustment - cost of sale	10.00%

XML

Fair Values Of Assets And Liabilities (Summary Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 296,161	$ 270,045	$ 271,575	$ 275,795
Interest bearing deposits with banks	1,011,635	980,457	693,269
Available-for-sale securities	1,649,636	1,724,667	637,663
Held-to-maturity securities	787,489	607,602	1,010,179
Trading account securities	1,987	1,989	3,613
FHLB and FRB stock, at cost	80,812	133,494	121,319
Brokerage customer receivables	23,281	25,181	26,866
Mortgage loans held-for-sale, at fair value	382,837	418,374	554,256
Accrued interest receivable and other	577,359	593,796	670,014
FHLB advances	318,270	153,831	588,055
Other borrowings	277,710	262,486	252,611
Subordinated notes	139,029	138,971	138,915
Junior subordinated debentures	253,566	253,566	253,566
Derivative liabilities	37,651	39,839	100,912
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	296,161	270,045	271,575
Interest bearing deposits with banks	1,011,635	980,457	693,269
Available-for-sale securities	1,649,636	1,724,667	637,663
Held-to-maturity securities	793,376	635,705	992,211
Trading account securities	1,987	1,989	3,613
FHLB and FRB stock, at cost	80,812	133,494	121,319
Brokerage customer receivables	23,281	25,181	26,866
Mortgage loans held-for-sale, at fair value	382,837	418,374	554,256
Loans held-for-investment, at fair value	30,173	22,137	16,294
Loans held-for-investment, at amortized cost	20,763,278	19,739,180	18,263,609
MSRs	27,307	19,103	13,382
Nonqualified deferred compensation assets	10,556	9,228	9,076
Derivative assets	49,703	56,394	101,052
Accrued interest receivable and other	215,291	204,513	198,017
Total financial assets	25,336,033	24,240,467	21,902,202
Non-maturity deposits	18,086,300	17,383,729	15,958,500
Deposits with stated maturities	4,519,392	4,274,903	4,083,250
FHLB advances	318,270	153,831	588,055
Other borrowings	277,710	262,486	252,611
Subordinated notes	139,029	138,971	138,915
Junior subordinated debentures	253,566	253,566	253,566
Derivative liabilities	37,651	39,839	100,912
FDIC indemnification liability	15,375	16,701	11,729
Accrued interest payable	6,460	6,421	6,175
Total financial liabilities	23,653,753	22,530,447	21,393,713
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	296,161	270,045	271,575
Interest bearing deposits with banks	1,011,635	980,457	693,269
Available-for-sale securities	1,649,636	1,724,667	637,663
Held-to-maturity securities	787,489	607,602	1,010,179
Trading account securities	1,987	1,989	3,613
FHLB and FRB stock, at cost	80,812	133,494	121,319
Brokerage customer receivables	23,281	25,181	26,866
Mortgage loans held-for-sale, at fair value	382,837	418,374	554,256
Loans held-for-investment, at fair value	30,173	22,137	16,294
Loans held-for-investment, at amortized cost	21,921,002	20,755,320	19,212,397
MSRs	27,307	19,103	13,382
Nonqualified deferred compensation assets	10,556	9,228	9,076
Derivative assets	49,703	56,394	101,052
Accrued interest receivable and other	215,291	204,513	198,017
Total financial assets	26,487,870	25,228,504	22,868,958
Non-maturity deposits	18,086,300	17,383,729	15,958,500
Deposits with stated maturities	4,503,645	4,263,576	4,086,350
FHLB advances	316,799	157,051	597,568
Other borrowings	277,710	262,486	252,611
Subordinated notes	143,126	135,268	141,858
Junior subordinated debentures	253,330	254,384	254,143
Derivative liabilities	37,651	39,839	100,912
FDIC indemnification liability	15,375	16,701	11,729
Accrued interest payable	6,460	6,421	6,175
Total financial liabilities	$ 23,640,396	$ 22,519,455	$ 21,409,846

XML

Fair Values Of Assets And Liabilities (Narrative) (Detail)	6 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($) $ / Loan	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-investment	$ 30,173,000		$ 16,294,000
Derivative assets	49,703,000	$ 56,394,000	101,052,000
Mortgage loans held-for-sale	382,837,000	418,374,000	554,256,000
Impaired loans—collateral based	$ 79,318,000	90,516,000	95,976,000
Other real estate owned, including covered other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Appraisal adjustment - cost of sale	10.00%
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	$ 27,307,000	19,103,000	13,382,000
Remaining contractual principal balance outstanding, mortgage loans held-for-sale	368,800,000	414,400,000	529,000,000
Mortgage loans held-for-sale	382,837,000	418,374,000	554,256,000
Impaired loans—collateral based	57,300,000
Portion at Other than Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	$ 22,000,000
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	40.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	100.00%
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-investment	$ 30,173,000	22,137,000	16,294,000
MSRs	27,307,000	19,103,000	13,382,000
Derivative assets	49,703,000	56,394,000	101,052,000
Mortgage loans held-for-sale	382,837,000	418,374,000	554,256,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans—collateral based	57,259,000
Other real estate owned, including covered other real estate owned	42,617,000
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-investment	30,173,000	22,137,000	0
MSRs	27,307,000	19,103,000	13,382,000
Derivative assets	1,047,000	2,291,000	9,731,000
Mortgage loans held-for-sale	$ 0	0	0
Level 3 | Fair Value, Measurements, Recurring | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant prepayment rate (CPR)	9.42%
Level 3 | Fair Value, Measurements, Recurring | Minimum | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	3.00%
Credit loss rate	0.00%
Level 3 | Fair Value, Measurements, Recurring | Minimum | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	9.00%
Constant prepayment rate (CPR)	0.00%
Level 3 | Fair Value, Measurements, Recurring | Maximum | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	4.00%
Credit loss rate	3.00%
Level 3 | Fair Value, Measurements, Recurring | Maximum | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	16.00%
Constant prepayment rate (CPR)	34.00%
Level 3 | Fair Value, Measurements, Recurring | Weighted Average | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	3.70%
Credit loss rate	0.89%
Level 3 | Fair Value, Measurements, Recurring | Weighted Average | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate input	9.81%
Constant prepayment rate (CPR)	9.64%
Range of Inputs (in dollars per loan) | $ / Loan	65
Weighted Average of Inputs (in dollars per loan) | $ / Loan	422
Level 3 | Fair Value, Measurements, Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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	$ 57,259,000
Other real estate owned, including covered other real estate owned	42,617,000
Non-performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale	$ 0	$ 0	$ 0

XML

Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Detail)	6 Months Ended
	Jun. 30, 2016
Share-based Compensation [Abstract]
Expected dividend yield	0.90%
Expected volatility	25.20%
Risk-free rate	1.30%
Expected option life (in years)	4 years 6 months

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Stock-Based Compensation Plans (Summary Of Stock Option Activity) (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common Shares, Outstanding at beginning of the period (in shares)	1,698,912	1,551,734
Common Shares, Granted (in shares)	0	558,411
Common Shares, Exercised (in shares)	(374,046)	(99,760)
Common Shares, Forfeited or canceled (in shares)	(8,173)	(84,750)
Common Shares, Outstanding at end of the period (in shares)	1,316,693	1,925,635
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)	$ 41.50	$ 41.32
Weighted Average Strike Price, Granted (usd per share)	0.00	40.96
Weighted Average Strike Price, Exercised (usd per share)	40.28	37.56
Weighted Average Strike Price, Forfeited or canceled (usd per share)	42.49	49.03
Weighted Average Strike Price, Outstanding at end of period (usd per share)	$ 41.84	$ 41.07
Stock Options, Exercisable (in shares)	765,711	896,155
Stock Options, Weighted Average Strike Price, Exercisable (usd per share)	$ 41.56	$ 39.08
Stock Options, Remaining Contractual Term, Outstanding, Years	4 years 4 months 24 days	4 years 10 months 24 days
Stock Options, Remaining Contractual Term, Exercisable, Years	3 years 8 months 12 days	3 years 7 months 6 days
Stock Options, Intrinsic Value, Outstanding	$ 45,561	$ 19,159
Stock Options, Intrinsic Value, Exercisable	$ 26,707	$ 10,695

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Stock-Based Compensation Plans (Summary Of Plans' Restricted Share And Performance-Vested Stock Award Activity) (Detail) - $ / shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
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)	133,425	137,593
Shares, Granted (in shares)	13,385	14,546
Shares, Vested and issued (in shares)	(10,104)	(8,523)
Shares, Forfeited (in shares)	0	(504)
Shares, Outstanding, End of the Period (in shares)	136,706	143,112
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)	$ 49.94	$ 49.63
Weighted Average Grant-Date Fair Value, Granted (usd per share)	72.36	43.95
Weighted Average Grant-Date Fair Value, Vested and issued (usd per share)	45.55	44.10
Weighted Average Grant-Date Fair Value, Forfeited (usd per share)	0.00	44.26
Weighted Average Grant-Date Fair Value (usd per share)	$ 52.46	$ 49.40
Shares, Vested, but not issuable (in shares)	89,391	88,696
Weighted Average Grant-Date Fair Value, Vested, but not issuable (usd per share)	$ 51.55	$ 51.43
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)	298,180	276,533
Shares, Granted (in shares)	143,439	117,409
Shares, Vested and issued (in shares)	(68,712)	(78,410)
Shares, Forfeited (in shares)	(8,438)	(13,064)
Shares, Outstanding, End of the Period (in shares)	364,469	302,468
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)	$ 43.64	$ 43.01
Weighted Average Grant-Date Fair Value, Granted (usd per share)	72.55	40.95
Weighted Average Grant-Date Fair Value, Vested and issued (usd per share)	46.85	37.90
Weighted Average Grant-Date Fair Value, Forfeited (usd per share)	49.47	41.13
Weighted Average Grant-Date Fair Value (usd per share)	$ 54.28	$ 43.62
Shares, Vested, but not issuable (in shares)	13,590	6,646
Weighted Average Grant-Date Fair Value, Vested, but not issuable (usd per share)	$ 42.60	$ 37.89

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Stock-Based Compensation Plans (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants (in shares)	4,000,000		4,000,000
Number of stock options granted			0	558,411
Stock-based compensation expense	$ 2.8	$ 2.3	$ 5.7	$ 4.8
Weighted average grant date fair value per share of options granted (usd per share)				$ 8.61
Aggregate intrinsic value of options exercised			11.9	$ 1.2
Cash received from option exercises			$ 15.1	$ 3.7
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
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Ltip Awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of performance based award payouts			0.00%
Granted after 2014 | 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 2015 | 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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	$ (59,824)	$ (39,910)	$ (65,328)	$ (62,708)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	12,916	3,514	19,037	24,591
Amount reclassified from accumulated other comprehensive income (loss), net of tax	384	(370)	634	(735)
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	(13)	2,326	(880)	4,412
Total other comprehensive income	13,287	5,470	18,791	28,268
Balance at end of period	(46,537)	(34,440)	(46,537)	(34,440)
Accumulated Unrealized Gains (Losses) on Securities
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(25,663)	(1,204)	(29,309)	(17,674)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	10,683	3,724	15,162	18,912
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(29)	(875)	5	(1,679)
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	(13)	2,326	(880)	4,412
Total other comprehensive income	10,641	5,175	14,287	21,645
Balance at end of period	(15,022)	3,971	(15,022)	3,971
Accumulated Unrealized Losses on Derivative Instruments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	5,146	(1,903)	4,165	(2,193)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(600)	(822)	165	(971)
Amount reclassified from accumulated other comprehensive income (loss), net of tax	413	505	629	944
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	(187)	(317)	794	(27)
Balance at end of period	4,959	(2,220)	4,959	(2,220)
Accumulated Foreign Currency Translation Adjustments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(39,307)	(36,803)	(40,184)	(42,841)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	2,833	612	3,710	6,650
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	2,833	612	3,710	6,650
Balance at end of period	$ (36,474)	$ (36,191)	$ (36,474)	$ (36,191)

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Shareholders' Equity And Earnings Per Share (Other Comprehensive Income Reclassified from AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains (losses) on investment securities, net	$ 47	$ 1,440	$ (8)	$ 2,765
Interest on deposits	18,471	13,594	34,741	26,375
Interest on junior subordinated debentures	2,433	2,353	4,841	4,573
Income before taxes	101,946	79,971	189,964	158,468
Income tax expense	(37,049)	(29,930)	(66,689)	(59,316)
Net income	64,897	50,041	123,275	99,152
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	47	1,440	(8)	2,765
Income before taxes	47	1,440	(8)	2,765
Income tax expense	(18)	(565)	3	(1,086)
Net income	29	875	(5)	1,679
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	323	338	365	593
Interest on junior subordinated debentures	358	494	672	962
Income before taxes	(681)	(832)	(1,037)	(1,555)
Income tax expense	268	327	408	611
Net income	$ (413)	$ (505)	$ (629)	$ (944)

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Shareholders' Equity And Earnings Per Share (Computation Of Basic And Diluted Earnings Per Common Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income	$ 64,897	$ 50,041	$ 123,275	$ 99,152
Less: Preferred stock dividends	2,050	3,628	5,678	7,256
Net income applicable to common shares	62,847	46,413	117,597	91,896
Add: Dividends on convertible preferred stock, if dilutive	0	1,578	1,578	3,156
Net income applicable to common shares—Diluted	$ 62,847	$ 47,991	$ 119,175	$ 95,052
Weighted average common shares outstanding	54,775	49,140	53,528	48,794
Effect of dilutive potential common shares
Common stock equivalents	927	856	994	778
Convertible preferred stock, if dilutive	885	3,109	1,987	3,109
Total dilutive potential common shares	1,812	3,965	2,981	3,887
Weighted average common shares and effect of dilutive potential common shares	56,587	53,105	56,509	52,681
Net income per common share-Basic (usd per share)	$ 1.15	$ 0.94	$ 2.20	$ 1.88
Net income per common share-Diluted (usd per share)	$ 1.11	$ 0.90	$ 2.11	$ 1.80

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Shareholders' Equity And Earnings Per Share (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands								1 Months Ended					3 Months Ended		6 Months Ended		12 Months Ended
	May 25, 2017	May 11, 2017	Apr. 27, 2017	Apr. 25, 2017	Feb. 23, 2017	Feb. 09, 2017	Dec. 19, 2008	Apr. 30, 2017	Jan. 31, 2017	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2012	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Temporary Equity [Line Items]
Stock issued in public offering, shares										3,000,000
Proceeds from the issuance of common stock, net										$ 152,900					$ 0	$ 152,823
Cash dividends declared per common share (usd per share)								$ 0.14	$ 0.14				$ 0.14	$ 0.12	$ 0.28	$ 0.24
Common stock dividends per share declared annualized (usd per share)								$ 0.56	$ 0.56
Dividends payable, date to be paid	May 25, 2017				Feb. 23, 2017
Dividends payable, date of record		May 11, 2017				Feb. 09, 2017
US Treasury
Temporary Equity [Line Items]
Warrants outstanding, shares							1,643,295						51,307		51,307
Warrant termination period							10 years
Investment warrants, exercise price (usd per share)															$ 22.68
Warrants exercised, shares															290,545
Common stock shares issued from exercise of warrants															199,210
Common stock
Temporary Equity [Line Items]
Common stock issued, conversion of preferred stock, shares			3,069,828	51,244													729
Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, shares issued										5,000,000	5,000,000		5,000,000	5,000,000	5,000,000	5,000,000	5,000,000
Preferred stock, liquidation value per share (usd per share)										$ 25	$ 25		$ 25	$ 25	$ 25	$ 25	$ 25
Preferred stock, value										$ 125,000	$ 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	$ 1,000
Preferred stock, value										$ 126,257		$ 126,500	$ 0	$ 126,257	$ 0	$ 126,257	$ 126,257
Preferred stock, Dividend payment terms												quarterly
Preferred stock, dividend rate, percentage												5.00%
Convertible preferred stock, rate of conversion, shares			24.72
Number of shares converted			124,184	2,073													30
London Interbank Offered Rate (LIBOR) | Series D Preferred Stock
Temporary Equity [Line Items]
Preferred stock, dividend rate, percentage, variable spread											4.06%