10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________________

FORM 10-Q

_________________________________________

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

For the quarterly period ended June 30, 2024

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)

Title of Each Class	Ticker Symbol	Name of Each Exchange on Which Registered
Common Stock, no par value	WTFC	The NASDAQ Global Select Market
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D, no par value	WTFCM	The NASDAQ Global Select Market
Depositary Shares, Each Representing a 1/1,000th Interest in a Share of	WTFCP	The NASDAQ Global Select Market
6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E, no par value

____________________________________ 

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  ☑    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  ☑    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	☑		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  ☑

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, 66,500,386 shares, as of August 6, 2024

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	49
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	77
ITEM 4.	Controls and Procedures	79
	PART II. — OTHER INFORMATION
ITEM 1.	Legal Proceedings	79
ITEM 1A.	Risk Factors	80
ITEM 2.	Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities	80
ITEM 3.	Defaults Upon Senior Securities	NA
ITEM 4.	Mine Safety Disclosures	NA
ITEM 5.	Other Information	80
ITEM 6.	Exhibits	81
	Signatures	82

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
	(Unaudited)				(Unaudited)
(Dollars in thousands, except per share data)	June 30, 2024		December 31, 2023		June 30, 2023
Assets
Cash and due from banks	$	415,462	$	423,404	$	513,858
Federal funds sold and securities purchased under resale agreements	62		60		59
Interest-bearing deposits with banks	2,824,314		2,084,323		2,163,708
Available-for-sale securities, at fair value	4,329,957		3,502,915		3,492,481
Held-to-maturity securities, at amortized cost, net of allowance for credit losses of $491, $347 and $406 at June 30, 2024, December 31, 2023 and June 30, 2023, respectively ($3.1 billion, $3.2 billion and $2.9 billion fair value at June 30, 2024, December 31, 2023 and June 30, 2023, respectively)	3,755,924		3,856,916		3,564,473
Trading account securities	4,134		4,707		3,027
Equity securities with readily determinable fair value	112,173		139,268		116,275
Federal Home Loan Bank and Federal Reserve Bank stock	256,495		205,003		195,117
Brokerage customer receivables	13,682		10,592		15,722
Mortgage loans held-for-sale, at fair value	411,851		292,722		338,728
Loans, net of unearned income	44,675,531		42,131,831		41,023,408
Allowance for loan losses	(363,719)		(344,235)		(302,499)
Net loans	44,311,812		41,787,596		40,720,909
Premises, software and equipment, net	722,295		748,966		749,393
Lease investments, net	275,459		281,280		274,351
Accrued interest receivable and other assets	1,671,334		1,551,899		1,455,748
Trade date securities receivable	—		690,722		—
Goodwill	655,955		656,672		656,674
Other acquisition-related intangible assets	20,607		22,889		25,653
Total assets	$	59,781,516	$	56,259,934	$	54,286,176
Liabilities and Shareholders’ Equity
Deposits:
Non-interest-bearing	$	10,031,440	$	10,420,401	$	10,604,915
Interest-bearing	38,017,586		34,976,769		33,433,792
Total deposits	48,049,026		45,397,170		44,038,707
Federal Home Loan Bank advances	3,176,309		2,326,071		2,026,071
Other borrowings	606,579		645,813		665,219
Subordinated notes	298,113		437,866		437,628
Junior subordinated debentures	253,566		253,566		253,566
Accrued interest payable and other liabilities	1,861,295		1,799,922		1,823,073
Total liabilities	54,244,888		50,860,408		49,244,264
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2024, December 31, 2023 and June 30, 2023	125,000		125,000		125,000
Series E - $25,000 liquidation value; 11,500 shares issued and outstanding at June 30, 2024, December 31, 2023 and June 30, 2023	287,500		287,500		287,500
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2024, December 31, 2023 and June 30, 2023; 61,824,947 shares issued at June 30, 2024, 61,268,566 shares issued at December 31, 2023 and 61,219,240 shares issued at June 30, 2023	61,825		61,269		61,219
Surplus	1,964,645		1,943,806		1,923,623
Treasury stock, at cost, 64,808 shares at June 30, 2024, 24,940 shares at December 31, 2023, and 21,564 shares at June 30, 2023	(5,760)		(2,217)		(1,966)
Retained earnings	3,615,616		3,345,399		3,120,626
Accumulated other comprehensive loss	(512,198)		(361,231)		(474,090)
Total shareholders’ equity	5,536,628		5,399,526		5,041,912
Total liabilities and shareholders’ equity	$	59,781,516	$	56,259,934	$	54,286,176

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
(Dollars in thousands, except per share data)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Interest income
Interest and fees on loans	$	749,812	$	621,057	$	1,460,153	$	1,179,749
Mortgage loans held-for-sale	5,434		4,178		9,580		7,706
Interest-bearing deposits with banks	19,731		16,882		36,389		30,350
Federal funds sold and securities purchased under resale agreements	17		1		36		71
Investment securities	69,779		51,243		139,457		111,186
Trading account securities	13		6		31		20
Federal Home Loan Bank and Federal Reserve Bank stock	4,974		3,544		9,452		7,224
Brokerage customer receivables	219		265		394		560
Total interest income	849,979		697,176		1,655,492		1,336,866
Interest expense
Interest on deposits	335,703		213,495		635,235		358,297
Interest on Federal Home Loan Bank advances	24,797		17,399		46,845		36,534
Interest on other borrowings	8,700		8,485		17,948		16,339
Interest on subordinated notes	5,185		5,523		10,672		11,011
Interest on junior subordinated debentures	4,984		4,737		9,988		9,153
Total interest expense	379,369		249,639		720,688		431,334
Net interest income	470,610		447,537		934,804		905,532
Provision for credit losses	40,061		28,514		61,734		51,559
Net interest income after provision for credit losses	430,549		419,023		873,070		853,973
Non-interest income
Wealth management	35,413		33,858		70,228		63,803
Mortgage banking	29,124		29,981		56,787		48,245
Service charges on deposit accounts	15,546		13,608		30,357		26,511
(Losses) gains on investment securities, net	(4,282)		0		(2,956)		1,398
Fees from covered call options	2,056		2,578		6,903		12,969
Trading gains, net	70		106		747		919
Operating lease income, net	13,938		12,227		28,048		25,273
Other	29,282		20,672		71,613		41,681
Total non-interest income	121,147		113,030		261,727		220,799
Non-interest expense
Salaries and employee benefits	198,541		184,923		393,714		361,704
Software and equipment	29,231		26,205		56,962		50,902
Operating lease equipment	10,834		9,816		21,517		19,649
Occupancy, net	19,585		19,176		38,671		37,662
Data processing	9,503		9,726		18,795		19,135
Advertising and marketing	17,436		17,794		30,476		29,740
Professional fees	9,967		8,940		19,520		17,103
Amortization of other acquisition-related intangible assets	1,122		1,499		2,280		2,734
FDIC insurance	10,429		9,008		24,966		17,677
Other real estate owned expense, net	(259)		118		133		(89)
Other	33,964		33,418		66,464		63,575
Total non-interest expense	340,353		320,623		673,498		619,792
Income before taxes	211,343		211,430		461,299		454,980
Income tax expense	58,955		56,680		121,617		120,032
Net income	$	152,388	$	154,750	$	339,682	$	334,948
Preferred stock dividends	6,991		6,991		13,982		13,982
Net income applicable to common shares	$	145,397	$	147,759	$	325,700	$	320,966
Net income per common share—Basic	$	2.35	$	2.41	$	5.28	$	5.26
Net income per common share—Diluted	$	2.32	$	2.38	$	5.21	$	5.18
Cash dividends declared per common share	$	0.45	$	0.40	$	0.90	$	0.80
Weighted average common shares outstanding	61,839		61,192		61,660		61,072
Dilutive potential common shares	926		902		901		933
Average common shares and dilutive common shares	62,765		62,094		62,561		62,005

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, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Net income	$	152,388	$	154,750	$	339,682	$	334,948
Unrealized (losses) gains on available-for-sale securities
Before tax	(20,768)		(46,231)		(98,656)		809
Tax effect	5,493		12,322		26,094		(215)
Net of tax	(15,275)		(33,909)		(72,562)		594
Reclassification of net gains on available-for-sale securities included in net income
Before tax	1,204		2		1,178		562
Tax effect	(319)		(1)		(312)		(152)
Net of tax	885		1		866		410
Reclassification of amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale
Before tax	14		28		64		71
Tax effect	(4)		(8)		(17)		(19)
Net of tax	10		20		47		52
Net unrealized (losses) gains on available-for-sale securities	(16,170)		(33,930)		(73,475)		132
Unrealized (losses) gains on derivative instruments
Before tax	(10,843)		(106,431)		(92,934)		(71,765)
Tax effect	2,868		28,363		24,581		19,125
Net unrealized (losses) gains on derivative instruments	(7,975)		(78,068)		(68,353)		(52,640)
Foreign currency adjustment
Before tax	(3,558)		6,527		(11,207)		7,417
Tax effect	653		(1,183)		2,068		(1,363)
Net foreign currency adjustment	(2,905)		5,344		(9,139)		6,054
Total other comprehensive (loss) income	(27,050)		(106,654)		(150,967)		(46,454)
Comprehensive income	$	125,338	$	48,096	$	188,715	$	288,494

See accompanying notes to unaudited consolidated financial statements.

3

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED)
(Dollars in thousands, except per share data)	Preferred stock		Common stock		Surplus		Treasury stock		Retained earnings		Accumulated other comprehensive income (loss)		Total shareholders’ equity
Balance at March 31, 2023	$	412,500	$	61,198	$	1,913,947	$	(1,966)	$	2,997,263	$	(367,436)	$	5,015,506
Net income	—		—		—		—		154,750		—		154,750
Other comprehensive loss, net of tax	—		—		—		—		—		(106,654)		(106,654)
Cash dividends declared on common stock, $0.40 per share	—		—		—		—		(24,396)		—		(24,396)
Dividends on Series D preferred stock, $0.41 per share and Series E preferred stock, $429.69 per share	—		—		—		—		(6,991)		—		(6,991)
Stock-based compensation	—		—		8,108		—		—		—		8,108
Common stock issued for:
Restricted stock awards	—		8		(8)		—		—		—		—
Employee stock purchase plan	—		13		894		—		—		—		907
Director compensation plan	—		—		682		—		—		—		682
Balance at June 30, 2023	$	412,500	$	61,219	$	1,923,623	$	(1,966)	$	3,120,626	$	(474,090)	$	5,041,912
Balance at January 1, 2023	$	412,500	$	60,797	$	1,902,474	$	(304)	$	2,849,007	$	(427,636)	$	4,796,838
Cumulative effect adjustment from the adoption of ASU 2022-02 (TDR), net of tax	—		—		—		—		(544)		—		(544)
Net income	—		—		—		—		334,948		—		334,948
Other comprehensive loss, net of tax	—		—		—		—		—		(46,454)		(46,454)
Cash dividends declared on common stock, $0.80 per share	—		—		—		—		(48,803)		—		(48,803)
Dividends on Series D preferred stock, $0.82 per share and Series E preferred stock, $859.38 per share	—		—		—		—		(13,982)		—		(13,982)
Stock-based compensation	—		—		16,403		—		—		—		16,403
Common stock issued for:
Exercise of stock options	—		54		2,162		—		—		—		2,216
Restricted stock awards	—		283		(283)		(1,662)		—		—		(1,662)
Employee stock purchase plan	—		22		1,579		—		—		—		1,601
Director compensation plan	—		63		1,288		—		—		—		1,351
Balance at June 30, 2023	$	412,500	$	61,219	$	1,923,623	$	(1,966)	$	3,120,626	$	(474,090)	$	5,041,912
Balance at March 31, 2024	$	412,500	$	61,798	$	1,954,532	$	(5,757)	$	3,498,475	$	(485,148)	$	5,436,400
Net income	—		—		—		—		152,388		—		152,388
Other comprehensive loss, net of tax	—		—		—		—		—		(27,050)		(27,050)
Cash dividends declared on common stock, $0.45 per share	—		—		—		—		(28,256)		—		(28,256)
Dividends on Series D preferred stock, $0.41 per share and Series E preferred stock, $429.69 per share	—		—		—		—		(6,991)		—		(6,991)
Stock-based compensation	—		—		8,950		—		—		—		8,950
Common stock issued for:
Restricted stock awards	—		18		(50)		(3)		—		—		(35)
Employee stock purchase plan	—		9		893		—		—		—		902
Director compensation plan	—		—		320		—		—		—		320
Balance at June 30, 2024	$	412,500	$	61,825	$	1,964,645	$	(5,760)	$	3,615,616	$	(512,198)	$	5,536,628
Balance at January 1, 2024	$	412,500	$	61,269	$	1,943,806	$	(2,217)	$	3,345,399	$	(361,231)	$	5,399,526
Net income	—		—		—		—		339,682		—		339,682
Other comprehensive loss, net of tax	—		—		—		—		—		(150,967)		(150,967)
Cash dividends declared on common stock, $0.90 per share	—		—		—		—		(55,483)		—		(55,483)
Dividends on Series D preferred stock, $0.82 per share and Series E preferred stock, $859.38 per share	—		—		—		—		(13,982)		—		(13,982)
Stock-based compensation	—		—		18,107		—		—		—		18,107
Common stock issued for:
Exercise of stock options	—		1		24		—		—		—		25
Restricted stock awards	—		523		(519)		(3,543)		—		—		(3,539)
Employee stock purchase plan	—		17		1,626		—		—		—		1,643
Director compensation plan	—		15		1,601		—		—		—		1,616
Balance at June 30, 2024	$	412,500	$	61,825	$	1,964,645	$	(5,760)	$	3,615,616	$	(512,198)	$	5,536,628

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, 2024		June 30, 2023
Operating Activities:
Net income	$	339,682	$	334,948
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	61,734		51,559
Depreciation, amortization and accretion, net	45,142		34,997
Stock-based compensation expense	18,107		16,403
(Accretion) amortization of discount/premium on securities, net	(347)		743
Accretion of discount and deferred fees on loans, net	(7,127)		(9,067)
Mortgage servicing rights fair value changes	1,448		13,190
Non-designated derivatives fair value changes, net	(9,566)		(2,088)
Originations and purchases of mortgage loans held-for-sale	(1,197,799)		(980,276)
Early buy-out exercises of mortgage loans held-for-sale guaranteed by U.S. government agencies, net of subsequent paydowns or payoffs	(3,896)		29,890
Proceeds from sales of mortgage loans held-for-sale	1,083,551		900,046
Bank owned life insurance (“BOLI”) gains	(3,002)		(2,673)
Decrease (increase) in trading securities, net	573		(1,900)
(Increase) decrease in brokerage customer receivables, net	(3,090)		665
Gains on mortgage loans sold	(25,640)		(24,133)
Gains on premium financing receivables sold	(4,575)		—
Losses (gains) on investment securities, net	2,956		(1,398)
(Gains) losses on sales of premises and equipment, net	(112)		1,594
(Gains) losses on sales and fair value adjustments of other real estate owned, net	(316)		100
Increase in accrued interest receivable and other assets, net	(88,565)		(83,646)
Increase in accrued interest payable and other liabilities, net	83,207		129,238
Net Cash Provided by Operating Activities	292,365		408,192
Investing Activities:
Proceeds from calls and sales of available-for-sale securities	690,866		1,875,672
Proceeds from payments and maturities of available-for-sale securities	193,605		156,892
Proceeds from payments, maturities and calls of held-to-maturity securities	100,276		84,015
Proceeds from sales of equity securities with readily determinable fair value	51,792		23,592
Proceeds from sales and capital distributions of equity securities without readily determinable fair value	2,226		67
Purchases of available-for-sale securities	(1,118,596)		(1,359,722)
Purchases of held-to-maturity securities	—		(8,439)
Purchases of equity securities with readily determinable fair value	(24,000)		(26,677)
Purchases of equity securities without readily determinable fair value	(5,972)		(5,600)
(Purchases) redemptions of Federal Home Loan Bank and Federal Reserve Bank stock, net	(51,492)		29,642
Distributions from investments in partnerships, net	2,239		4,995
Net cash paid in business combinations	—		(4,966)
Proceeds from sales of premium financing receivables, net	627,450		—
Proceeds from sales of other real estate owned	1,752		1,168
Increase in interest-bearing deposits with banks, net	(743,606)		(172,149)
Increase in loans, net	(3,241,661)		(1,820,788)
Redemption of BOLI	306		—
Purchases of premises and equipment, net	(49,759)		(9,318)
Net Cash Used for Investing Activities	(3,564,574)		(1,231,616)
Financing Activities:
Increase in deposit accounts, net	2,651,854		1,136,159
(Decrease) increase in other borrowings, net	(28,103)		59,552
Increase (decrease) in Federal Home Loan Bank advances, net	850,238		(290,000)
Cash payments to settle contingent consideration liabilities recognized in business combinations	—		(57)
Repayment of subordinated notes	(140,000)		—
Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and director compensation plan	3,284		5,168
Common stock repurchases for tax withholdings related to stock-based compensation	(3,539)		(1,662)
Dividends paid	(69,465)		(62,785)
Net Cash Provided by Financing Activities	3,264,269		846,375
Net (Decrease) Increase in Cash and Cash Equivalents	(7,940)		22,951
Cash and Cash Equivalents at Beginning of Period	423,464		490,966
Cash and Cash Equivalents at End of Period	$	415,524	$	513,917

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 interim consolidated financial statements of Wintrust Financial Corporation and its subsidiaries (collectively, “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 interim consolidated financial statements.

The accompanying interim 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 interim unaudited 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, 2023 (“2023 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 credit losses, including the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity securities losses, 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 2023 Form 10-K. In preparation of these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.

(2) Recent Accounting Developments

Equity Method and Joint Ventures - Investments in Tax Credit Structures

In March 2023, the FASB issued ASU No. 2023-02, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method,” which allows reporting entities the option to apply the proportional amortization method to other tax credit programs besides the Low-Income Housing Tax Credit structures. The guidance requires application of the proportional amortization method on a tax-credit-program-by-tax-credit-program basis rather than electing the method at the reporting level entity level. The Company adopted ASU No. 2023-02 as of January 1, 2024. Adoption of this standard did not have a material impact on the Company’s consolidated financial statements.

Segment Reporting

In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” to enhance public entity disclosures regarding significant segment expenses which are regularly reported to an entity’s chief operating decision-maker (“CODM”) and included in a segment’s reported profit or loss. This ASU requires disclosure of the amount and composition of “other segment items,” the title and position of the CODM, and how the CODM uses reported measures of profit or loss to assess segment performance. Further, the guidance requires certain segment disclosures previously provided only annually, on an interim basis. This guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The guidance is to be applied retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of adopting this guidance on the consolidated financial statements.

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Income Tax Disclosures

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” to enhance the transparency and decision usefulness of income tax disclosures. This ASU requires annually that all entities disclose increasingly disaggregated information on amount of income taxes paid. Further, this ASU requires annually that all public entities must disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a specific quantitative threshold. This guidance is effective for fiscal years beginning after December 15, 2024, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Compensation – Scope Application of Profits Interest and Similar Awards

In March 2024, the FASB issued ASU No. 2024-01, “Compensation – Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards” which clarifies the guidance by providing an illustrative example to demonstrate how an entity should apply the scope guidance in Topic 718 when determining whether profits interest and similar awards should be accounted for in accordance with Topic 718. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2024, including interim periods therein, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

(3) Business Combinations

On April 3, 2023, the Company completed its acquisition of Rothschild & Co Asset Management US Inc. and Rothschild & Co Risk Based Investments LLC from Rothschild & Co North America Inc. As of the acquisition date, the Company acquired approximately $12.6 million in net assets. As the transaction was determined to be a business combination, the Company recorded goodwill of approximately $2.6 million on the purchase.

(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. These items are included within the Company’s Consolidated Statements of Condition as cash and due from banks, and federal funds sold and securities purchased under resale agreements.

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(5) Investment Securities

The following tables are a summary of the investment securities portfolios as of the dates shown:

	June 30, 2024
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available-for-sale securities
U.S. Treasury	$	102,721	$	5	$	(14)	$	102,712
U.S. government agencies	50,000		—		(4,808)		45,192
Municipal	151,347		390		(5,129)		146,608
Corporate notes:
Financial issuers	83,996		—		(7,011)		76,985
Other	1,000		—		(10)		990
Mortgage-backed: (1)
Residential mortgage-backed securities	4,320,215		361		(541,742)		3,778,834
Commercial (multi-family) mortgage-backed securities	18,096		8		(626)		17,478
Collateralized mortgage obligations	179,315		629		(18,786)		161,158
Total available-for-sale securities	$	4,906,690	$	1,393	$	(578,126)	$	4,329,957
Held-to-maturity securities
U.S. government agencies	$	336,458	$	—	$	(70,928)	$	265,530
Municipal	166,400		155		(6,789)		159,766
Mortgage-backed: (1)
Residential mortgage-backed securities	2,962,721		—		(591,601)		2,371,120
Commercial (multi-family) mortgage-backed securities	6,390		—		(300)		6,090
Collateralized mortgage obligations	227,247		362		(23,636)		203,973
Corporate notes	57,199		—		(3,211)		53,988
Total held-to-maturity securities	$	3,756,415	$	517	$	(696,465)	$	3,060,467
Less: Allowance for credit losses	(491)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924
Equity securities with readily determinable fair value	$	117,674	$	2,882	$	(8,383)	$	112,173

(1)None of our mortgage-backed securities are subprime.

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	December 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	6,960	$	8	$	—	$	6,968
U.S. government agencies	50,000		—		(4,876)		45,124
Municipal	144,299		657		(3,998)		140,958
Corporate notes:
Financial issuers	83,996		—		(8,456)		75,540
Other	1,000		—		(9)		991
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,505,012		1,392		(446,784)		3,059,620
Commercial (multi-family) mortgage-backed securities	13,201		68		(289)		12,980
Collateralized mortgage obligations	175,346		1,400		(16,012)		160,734
Total available-for-sale securities	$	3,979,814	$	3,525	$	(480,424)	$	3,502,915
Held-to-maturity securities
U.S. government agencies	$	336,468	$	—	$	(67,058)	$	269,410
Municipal	172,933		565		(3,778)		169,720
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,042,828		1,922		(549,265)		2,495,485
Commercial (multi-family) mortgage-backed securities	6,415		—		(184)		6,231
Collateralized mortgage obligations	241,075		978		(21,502)		220,551
Corporate notes	57,544		7		(3,480)		54,071
Total held-to-maturity securities	$	3,857,263	$	3,472	$	(645,267)	$	3,215,468
Less: Allowance for credit losses	(347)
Held-to-maturity securities, net of allowance for credit losses	$	3,856,916
Equity securities with readily determinable fair value	$	143,312	$	3,500	$	(7,544)	$	139,268

(1)None of our mortgage-backed securities are subprime.

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	June 30, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	80,000		—		(5,725)		74,275
Municipal	173,540		102		(6,231)		167,411
Corporate notes:
Financial issuers	83,995		—		(12,920)		71,075
Other	1,000		—		(15)		985
Mortgage-backed: (1)
Mortgage-backed securities	3,585,943		—		(483,659)		3,102,284
Collateralized mortgage obligations	94,373		—		(17,922)		76,451
Total available-for-sale securities	$	4,018,851	$	102	$	(526,472)	$	3,492,481
Held-to-maturity securities
U.S. government agencies	$	339,604	$	—	$	(71,022)	$	268,582
Municipal	176,128		362		(4,502)		171,988
Mortgage-backed: (1)
Mortgage-backed securities	2,832,138		—		(574,114)		2,258,024
Collateralized mortgage obligations	159,120		—		(23,014)		136,106
Corporate notes	57,889		35		(4,733)		53,191
Total held-to-maturity securities	$	3,564,879	$	397	$	(677,385)	$	2,887,891
Less: Allowance for credit losses	(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,564,473
Equity securities with readily determinable fair value	$	120,629	$	3,711	$	(8,065)	$	116,275

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

Equity securities without readily determinable fair values totaled $62.7 million as of June 30, 2024. Equity securities without readily determinable fair values are included as part of accrued interest receivable and other assets in the Company’s Consolidated Statements of Condition. The Company monitors its equity investments without readily determinable fair values to identify potential transactions that may indicate an observable price change in orderly transactions for the identical or a similar investment of the same issuer, requiring adjustment to its carrying amount. During the three and six months ended June 30, 2024 and June 30, 2023, the Company recorded no upward or downward adjustments related to such observable price changes. The Company conducts a quarterly assessment of its equity securities without readily determinable fair values to determine whether impairment exists in such securities, considering, among other factors, the nature of the securities, financial condition of the issuer and expected future cash flows. During the three and six months ended June 30, 2024, the Company recorded $3.7 million of impairment of equity securities without readily determinable fair values. During the three and six months ended June 30, 2023, the Company recorded no impairment of equity securities without readily determinable fair values.

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The following table presents the portion of the Company’s available-for-sale investment securities portfolios that have gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2024:

	Continuous unrealized losses existing for less than 12 months				Continuous unrealized losses existing for greater than 12 months				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Available-for-sale securities
U.S. Treasury	$	90,735	$	(14)	$	—	$	—	$	90,735	$	(14)
U.S. government agencies	—		—		45,192		(4,808)		45,192		(4,808)
Municipal	42,560		(333)		78,578		(4,796)		121,138		(5,129)
Corporate notes:
Financial issuers	—		—		76,985		(7,011)		76,985		(7,011)
Other	—		—		990		(10)		990		(10)
Mortgage-backed: (1)
Residential mortgage-backed securities	1,226,130		(19,491)		2,537,424		(522,251)		3,763,554		(541,742)
Commercial (multi-family) mortgage-backed securities	14,505		(626)		—		—		14,505		(626)
Collateralized mortgage obligations	16,384		(81)		69,273		(18,705)		85,657		(18,786)
Total available-for-sale securities	$	1,390,314	$	(20,545)	$	2,808,442	$	(557,581)	$	4,198,756	$	(578,126)

(1)None of our mortgage-backed securities are subprime.

The Company conducts a regular assessment of its investment securities to determine whether securities are experiencing credit losses. Factors for consideration include the nature of the securities, credit ratings or financial condition of the issuer, the extent 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 available-for-sale securities with unrealized losses at June 30, 2024 to be experiencing credit losses and recognized no resulting allowance for credit losses for such individually assessed credit losses. 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. Available-for-sale securities with continuous unrealized losses existing for more than twelve months at June 30, 2024 were primarily mortgage-backed securities with unrealized losses due to increased market rates during such period.

See Note (7) “Allowance for Credit Losses” in Item 1 of this report for further discussion regarding any credit losses associated with held-to-maturity securities at June 30, 2024.

The following table provides information as to the amount of gross gains and losses, adjustments and impairment on investment securities recognized in earnings and proceeds received through the sale or call of investment securities:

	Three months ended June 30,				Six months ended June 30,
(In thousands)	2024		2023		2024		2023
Realized gains on investment securities	$	1,325	$	6	$	2,360	$	611
Realized losses on investment securities	(21)		(6)		(129)		(51)
Net realized gains on investment securities	1,304		0		2,231		560
Unrealized gains on equity securities with readily determinable fair value	74		684		1,108		2,974
Unrealized losses on equity securities with readily determinable fair value	(1,931)		(684)		(2,564)		(2,136)
Net unrealized (losses) gains on equity securities with readily determinable fair value	(1,857)		0		(1,456)		838
Impairment of equity securities without readily determinable fair values	(3,729)		—		(3,731)		—
(Losses) gains on investment securities, net	$	(4,282)	$	0	$	(2,956)	$	1,398

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The amortized cost and fair value of available-for-sale and held-to-maturity investment securities as of June 30, 2024, December 31, 2023 and June 30, 2023, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2024				December 31, 2023				June 30, 2023
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	145,856	$	145,599	$	53,162	$	52,945	$	93,724	$	93,137
Due in one to five years	139,409		131,506		132,348		123,985		138,704		126,776
Due in five to ten years	84,756		79,216		82,040		76,869		41,655		36,315
Due after ten years	19,043		16,166		18,705		15,782		64,452		57,518
Mortgage-backed	4,517,626		3,957,470		3,693,559		3,233,334		3,680,316		3,178,735
Total available-for-sale securities	$	4,906,690	$	4,329,957	$	3,979,814	$	3,502,915	$	4,018,851	$	3,492,481
Held-to-maturity securities
Due in one year or less	$	8,356	$	8,213	$	5,169	$	5,142	$	2,479	$	2,475
Due in one to five years	114,457		109,845		109,602		105,835		102,182		96,806
Due in five to ten years	85,507		82,499		99,700		98,718		106,708		105,054
Due after ten years	351,737		278,727		352,474		283,506		362,252		289,426
Mortgage-backed	3,196,358		2,581,183		3,290,318		2,722,267		2,991,258		2,394,130
Total held-to-maturity securities	$	3,756,415	$	3,060,467	$	3,857,263	$	3,215,468	$	3,564,879	$	2,887,891
Less: Allowance for credit losses	(491)				(347)				(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924			$	3,856,916			$	3,564,473

Securities having a carrying value of $7.6 billion at June 30, 2024 as well as securities having a carrying value of $6.9 billion and $6.4 billion at December 31, 2023 and June 30, 2023, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank (“FHLB”) advances and available lines of credit, securities sold under repurchase agreements and derivatives. At June 30, 2024, there were no securities of a single issuer, other than U.S. government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

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(6) Loans

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

	June 30,			December 31,			June 30,
(Dollars in thousands)	2024			2023			2023
Balance:
Commercial	$	14,154,462		$	12,832,053		$	12,600,471
Commercial real estate	11,947,197			11,344,164			10,608,811
Home equity	356,313			343,976			336,974
Residential real estate	3,067,335			2,769,666			2,643,240
Premium finance receivables—property & casualty	7,100,753			6,903,529			6,762,698
Premium finance receivables—life insurance	7,962,115			7,877,943			8,039,273
Consumer and other	87,356			60,500			31,941
Total loans, net of unearned income	$	44,675,531		$	42,131,831		$	41,023,408
Mix:
Commercial	31		%	30		%	31		%
Commercial real estate	27			27			26
Home equity	1			1			1
Residential real estate	7			7			6
Premium finance receivables—property & casualty	16			16			16
Premium finance receivables—life insurance	18			19			20
Consumer and other	0			0			0
Total loans, net of unearned income	100		%	100		%	100		%

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses, which, for the commercial and commercial real estate portfolios, are located primarily within the geographic market areas that the banks serve. Various niche lending businesses, including franchise lending and insurance agency lending, operate on a national level. 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 $248.3 million at June 30, 2024, $285.4 million at December 31, 2023 and $281.7 million at June 30, 2023.

Total loans, excluding purchased credit deteriorated (“PCD”) loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $89.6 million at June 30, 2024, $84.2 million at December 31, 2023 and $72.8 million at June 30, 2023.

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.

(7) Allowance for Credit Losses

In accordance with ASC 326, the Company is required to measure the allowance for credit losses of financial assets with similar risk characteristics on a collective or pooled basis. In considering the segmentation of financial assets measured at amortized cost into pools, the Company considered various risk characteristics in its analysis. Generally, the segmentation utilized represents the level at which the Company develops and documents its systematic methodology to determine the allowance for credit losses for the financial assets held at amortized cost, specifically the Company's loan portfolio and debt securities classified as held-to-maturity. Descriptions of the Company’s loan portfolio segments and major debt security types are included in Note (5) “Allowance for Credit Losses” of the 2023 Form 10-K.

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In accordance with ASC 326, the Company elected to not measure an allowance for credit losses on accrued interest. As such accrued interest is written off in a timely manner when deemed uncollectible. Any such write-off of accrued interest will reverse previously recognized interest income. In addition, the Company elected to not include accrued interest within presentation and disclosures of the carrying amount of financial assets held at amortized cost. This election is applicable to the various disclosures included within the Company's financial statements. Accrued interest related to financial assets held at amortized cost is included within accrued interest receivable and other assets within the Company's Consolidated Statements of Condition and totaled $297.2 million at June 30, 2024, $304.5 million at December 31, 2023, and $267.3 million at June 30, 2023.

The tables below show the aging of the Company’s loan portfolio by the segmentation noted above at June 30, 2024, December 31, 2023 and June 30, 2023:

As of June 30, 2024			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	51,087	$	304	$	16,485	$	36,358	$	14,050,228	$	14,154,462
Commercial real estate
Construction and development	2,528		—		1,699		6,539		2,249,785		2,260,551
Non-construction	45,761		—		4,856		31,526		9,604,503		9,686,646
Home equity	1,100		—		275		1,229		353,709		356,313
Residential real estate, excluding early buy-out loans	18,198		—		1,977		130		2,912,852		2,933,157
Premium finance receivables
Property and casualty insurance loans	32,722		22,427		29,925		45,927		6,969,752		7,100,753
Life insurance loans	—		—		4,118		17,693		7,940,304		7,962,115
Consumer and other	3		121		81		366		86,785		87,356
Total loans, net of unearned income, excluding early buy-out loans	$	151,399	$	22,852	$	59,416	$	139,768	$	44,167,918	$	44,541,353
Early buy-out loans guaranteed by U.S. government agencies (1)	—		45,788		—		—		88,390		134,178
Total loans, net of unearned income	$	151,399	$	68,640	$	59,416	$	139,768	$	44,256,308	$	44,675,531

As of December 31, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	38,940	$	98	$	19,488	$	85,743	$	12,687,784	$	12,832,053
Commercial real estate
Construction and development	2,205		—		251		1,343		2,080,242		2,084,041
Non-construction	33,254		—		8,264		19,291		9,199,314		9,260,123
Home equity	1,341		—		62		2,263		340,310		343,976
Residential real estate, excluding early buy-out loans	15,391		—		2,325		22,942		2,578,425		2,619,083
Premium finance receivables
Property and casualty insurance loans	27,590		20,135		23,236		50,437		6,782,131		6,903,529
Life insurance loans	—		—		16,206		45,464		7,816,273		7,877,943
Consumer and other	22		54		25		165		60,234		60,500
Total loans, net of unearned income, excluding early buy-out loans	$	118,743	$	20,287	$	69,857	$	227,648	$	41,544,713	$	41,981,248
Early buy-out loans guaranteed by U.S. government agencies (1)	—		57,688		250		328		92,317		150,583
Total loans, net of unearned income	$	118,743	$	77,975	$	70,107	$	227,976	$	41,637,030	$	42,131,831

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

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As of June 30, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	40,460	$	573	$	22,808	$	48,970	$	12,487,660	$	12,600,471
Commercial real estate
Construction and development	12,536		—		—		766		1,747,134		1,760,436
Non-construction	5,947		—		1,054		13,452		8,827,922		8,848,375
Home equity	1,361		110		316		601		334,586		336,974
Residential real estate, excluding early buy-out loans	13,652		—		7,243		872		2,433,625		2,455,392
Premium finance receivables
Property and casualty insurance loans	19,583		12,785		22,670		32,751		6,674,909		6,762,698
Life insurance loans	6		1,667		3,729		90,117		7,943,754		8,039,273
Consumer and other	4		28		51		146		31,712		31,941
Total loans, net of unearned income, excluding early buy-out loans	$	93,549	$	15,163	$	57,871	$	187,675	$	40,481,302	$	40,835,560
Early buy-out loans guaranteed by U.S. government agencies (1)	117		57,728		918		—		129,085		187,848
Total loans, net of unearned income	$	93,666	$	72,891	$	58,789	$	187,675	$	40,610,387	$	41,023,408

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

Credit Quality Indicators

Credit quality indicators, specifically the Company's internal risk rating systems, reflect how the Company monitors credit losses and represents factors used by the Company when measuring the allowance for credit losses. Descriptions of the Company’s credit quality indicators by financial asset are included in Note (5) “Allowance for Credit Losses” of the 2023 Form 10-K.

The table below shows the Company’s loan portfolio by credit quality indicator and year of origination at June 30, 2024:

	Year of Origination														Revolving		Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Revolving		to Term		Loans
Loan Balances:
Commercial, industrial and other
Pass	$	1,759,369	$	2,462,832	$	1,847,769	$	1,330,074	$	529,579	$	1,099,112	$	4,405,035	$	8,966	$	13,442,736
Special mention	1,704		62,567		69,016		64,001		6,033		51,135		129,899		1,300		385,655
Substandard accrual	2,660		41,267		42,882		40,319		20,026		8,703		119,110		17		274,984
Substandard nonaccrual/doubtful	—		5,950		5,718		21,951		1,237		8,175		7,976		80		51,087
Total commercial, industrial and other	$	1,763,733	$	2,572,616	$	1,965,385	$	1,456,345	$	556,875	$	1,167,125	$	4,662,020	$	10,363	$	14,154,462
Construction and development
Pass	$	78,100	$	475,118	$	973,989	$	371,090	$	79,439	$	159,686	$	22,350	$	—	$	2,159,772
Special mention	—		1,176		14,990		17,091		—		14,969		—		—		48,226
Substandard accrual	—		—		—		1,102		1,777		47,146		—		—		50,025
Substandard nonaccrual/doubtful	—		495		—		—		2,033		—		—		—		2,528
Total construction and development	$	78,100	$	476,789	$	988,979	$	389,283	$	83,249	$	221,801	$	22,350	$	—	$	2,260,551
Non-construction
Pass	$	710,843	$	1,515,024	$	1,757,491	$	1,360,084	$	961,509	$	2,884,404	$	198,713	$	265	$	9,388,333
Special mention	3,364		8,422		37,904		46,765		17,230		46,738		274		—		160,697
Substandard accrual	—		3,202		13,696		9,545		22,983		42,429		—		—		91,855
Substandard nonaccrual/doubtful	—		1,372		453		170		—		43,766		—		—		45,761
Total non-construction	$	714,207	$	1,528,020	$	1,809,544	$	1,416,564	$	1,001,722	$	3,017,337	$	198,987	$	265	$	9,686,646
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	9,272	$	326,705	$	2,737	$	338,714
Special mention	—		—		222		59		120		2,417		6,313		287		9,418
Substandard accrual	—		—		104		—		102		6,242		558		75		7,081
Substandard nonaccrual/doubtful	—		—		511		137		—		363		—		89		1,100
Total home equity	$	—	$	—	$	837	$	196	$	222	$	18,294	$	333,576	$	3,188	$	356,313
Residential real estate
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	380,670		480,911		808,108		754,489		204,797		257,334		—		—		2,886,309

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Special mention	—		2,985		5,655		2,284		1,604		6,547		—		—		19,075
Substandard accrual	224		596		3,353		915		1,143		3,344		—		—		9,575
Substandard nonaccrual/doubtful	—		523		5,109		4,642		1,229		6,695		—		—		18,198
Total residential real estate	$	380,894	$	488,777	$	825,606	$	766,143	$	214,473	$	391,442	$	—	$	—	$	3,067,335
Premium finance receivables - property and casualty
Pass	$	5,737,826	$	1,204,432	$	—	$	8,281	$	421	$	—	$	—	$	—	$	6,950,960
Special mention	92,231		19,192		95		8		—		—		—		—		111,526
Substandard accrual	1,488		4,052		1		4		—		—		—		—		5,545
Substandard nonaccrual/doubtful	7,238		25,281		182		19		2		—		—		—		32,722
Total premium finance receivables - property and casualty	$	5,838,783	$	1,252,957	$	278	$	8,312	$	423	$	—	$	—	$	—	$	7,100,753
Premium finance receivables - life
Pass	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Special mention	—		—		—		—		—		—		—		—		—
Substandard accrual	—		—		—		—		—		—		—		—		—
Substandard nonaccrual/doubtful	—		—		—		—		—		—		—		—		—
Total premium finance receivables - life	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Consumer and other
Pass	$	1,562	$	2,602	$	749	$	667	$	46	$	32,764	$	48,721	$	—	$	87,111
Special mention	6		14		11		5		—		140		2		—		178
Substandard accrual	5		14		9		—		—		27		9		—		64
Substandard nonaccrual/doubtful	—		—		1		2		—		—		—		—		3
Total consumer and other	$	1,573	$	2,630	$	770	$	674	$	46	$	32,931	$	48,732	$	—	$	87,356
Total loans
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	9,805,921		12,961,554		5,392,035		3,824,685		1,775,791		4,442,572		5,001,524		11,968		43,216,050
Special mention	97,305		94,356		127,893		130,213		24,987		121,946		136,488		1,587		734,775
Substandard accrual	4,377		49,131		60,045		51,885		46,031		107,891		119,677		92		439,129
Substandard nonaccrual/doubtful	7,238		33,621		11,974		26,921		4,501		58,999		7,976		169		151,399
Total loans	$	9,914,841	$	13,142,424	$	5,595,328	$	4,037,517	$	1,857,010	$	4,848,930	$	5,265,665	$	13,816	$	44,675,531
Gross write offs
Six months ended June 30, 2024	244		29,608		3,464		1,220		2,088		21,973		—		—		58,597

Held-to-maturity debt securities

The Company conducts an assessment of its investment securities, including those classified as held-to-maturity, at the time of purchase and on at least an annual basis to ensure such investment securities remain within appropriate levels of risk and continue to perform satisfactorily in fulfilling its obligations. The Company considers, among other factors, the nature of the securities and credit ratings or financial condition of the issuer. If available, the Company obtains a credit rating for issuers from a Nationally Recognized Statistical Rating Organization (“NRSRO”) for consideration. If no such rating is available for an issuer, the Company performs an internal rating based on the scale utilized within the loan portfolio as discussed above. For purposes of the table below, the Company has converted any issuer rating from an NRSRO into the Company’s internal ratings based on Investment Policy and review by the Company’s management.

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As of June 30, 2024	Year of Origination												Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Balance
Amortized Cost Balances:
U.S. government agencies
1-4 internal grade	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
5-7 internal grade													—
8-10 internal grade													—
Total U.S. government agencies	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
Municipal
1-4 internal grade	$	—	$	4,176	$	1,035	$	6,862	$	258	$	151,716	$	164,047
5-7 internal grade	—		—		—		—		—		2,353		2,353
8-10 internal grade													—
Total municipal	$	—	$	4,176	$	1,035	$	6,862	$	258	$	154,069	$	166,400
Mortgage-backed securities
1-4 internal grade	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
5-7 internal grade													—
8-10 internal grade													—
Total mortgage-backed securities	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
Corporate notes
1-4 internal grade	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
5-7 internal grade													—
8-10 internal grade													—
Total corporate notes	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
Total held-to-maturity securities													$	3,756,415
Less: Allowance for credit losses													(491)
Held-to-maturity securities, net of allowance for credit losses													$	3,755,924

Measurement of Allowance for Credit Losses

The Company's allowance for credit losses consists of the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity debt security losses. In accordance with ASC 326, the Company measures the allowance for credit losses at the time of origination or purchase of a financial asset, representing an estimate of lifetime expected credit losses on the related asset. When developing its estimate, the Company considers available information relevant to assessing the collectability of cash flows, from both internal and external sources. Historical credit loss experience is one input in the estimation process as well as inputs relevant to current conditions and reasonable and supportable forecasts. In considering past events, the Company considers the relevance, or lack thereof, of historical information due to changes in such things as financial asset underwriting or collection practices, and changes in portfolio mix due to changing business plans and strategies. In considering current conditions and forecasts, the Company considers both the current economic environment and the forecasted direction of the economic environment with emphasis on those factors deemed relevant to or driving changes in expected credit losses. As significant judgment is required, the review of the appropriateness of the allowance for credit losses is performed quarterly by various committees with participation by the Company's executive management.

	June 30,		December 31,		June 30,
(In thousands)	2024		2023		2023
Allowance for loan losses	$	363,719	$	344,235	$	302,499
Allowance for unfunded lending-related commitments losses	73,350		83,030		84,881
Allowance for loan losses and unfunded lending-related commitments losses	437,069		427,265		387,380
Allowance for held-to-maturity securities losses	491		347		406
Allowance for credit losses	$	437,560	$	427,612	$	387,786

The allowance for credit losses is measured on a collective or pooled basis when similar risk characteristics exist, based upon the segmentation discussed above. The Company utilizes modeling methodologies that estimate lifetime credit loss rates on each pool, including methodologies estimating the probability of default and loss given default on specific segments. Historical credit loss history is adjusted for reasonable and supportable forecasts developed by the Company on a quantitative or qualitative basis and incorporates third party economic forecasts. Reasonable and supportable forecasts consider the macroeconomic factors that are most relevant to evaluating and predicting expected credit losses in the Company's financial assets. Currently, the Company utilizes an eight quarter forecast period using a single macroeconomic scenario provided by a

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third party and reviewed within the Company's governance structure. For periods beyond the ability to develop reasonable and supportable forecasts, the Company reverts to historical loss rates at an input level, straight-line over a four quarter reversion period. Expected credit losses are measured over the contractual term of the financial asset with consideration of expected prepayments. Expected extensions, renewals or modifications of the financial asset are considered when the expected extension, renewal or modification is contained within the existing agreement and is not unconditionally cancelable. The methodologies discussed above are applied to both current asset balances on the Company's Consolidated Statements of Condition and off-balance sheet commitments (i.e. unfunded lending-related commitments).

Assets that do not share similar risk characteristics with a pool are assessed for the allowance for credit losses on an individual basis. These typically include assets experiencing financial difficulties, including assets rated as substandard nonaccrual and doubtful. If foreclosure is probable or the asset is considered collateral-dependent, expected credit losses are measured based upon the fair value of the underlying collateral adjusted for selling costs, if appropriate. Underlying collateral across the Company's segments consist primarily of real estate, land and construction assets as well as general business assets of the borrower. As of June 30, 2024, excluding loans carried at fair value, substandard nonaccrual loans totaling $46.6 million in carrying balance had no related allowance for credit losses.

The Company does not measure an allowance for credit losses on accrued interest receivable balances because these balances are written off in a timely manner as a reduction to interest income when assets are placed on nonaccrual status.

Loan portfolios

A summary of activity in the allowance for credit losses, specifically for the loan portfolio (i.e. allowance for loan losses and allowance for unfunded commitment losses), for the three and six months ended June 30, 2024 and June 30, 2023 is as follows:

Three months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	166,518	$	226,052	$	7,191	$	13,701	$	13,330	$	383	$	427,175
Other adjustments	—		—		—		—		(19)		—		(19)
Charge-offs	(9,584)		(15,526)		—		(23)		(9,486)		(137)		(34,756)
Recoveries	950		90		35		8		3,663		24		4,770
Provision for credit losses	24,107		13,112		16		(4,913)		7,258		319		39,899
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069
By measurement method:
Individually measured	$	30,927	$	6,330	$	—	$	32	$	—	$	1	$	37,290
Collectively measured	151,064		217,398		7,242		8,741		14,746		588		399,779
Loans at period end
Individually measured	$	51,087	$	48,289	$	1,100	$	17,807	$	—	$	3	$	118,286
Collectively measured	14,103,375		11,898,908		355,213		2,913,694		15,062,868		87,353		44,421,411
Loans held at fair value	—		—		—		135,834		—		—		135,834

Three months ended June 30, 2023	Commercial		Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)
Allowance for credit losses at beginning of period	$	149,501	$	194,780	$	7,728	$	11,434	$	11,955	$	400	$	375,798
Other adjustments	—		—		—		—		41		—		41
Charge-offs	(5,629)		(8,124)		—		—		(4,653)		(110)		(18,516)
Recoveries	505		25		37		6		890		23		1,486
Provision for credit losses	(1,235)		29,015		(798)		812		813		(36)		28,571
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380
By measurement method:
Individually measured	$	7,205	$	5,819	$	—	$	106	$	—	$	—	$	13,130
Collectively measured	135,937		209,877		6,967		12,146		9,046		277		374,250
Loans at period end
Individually measured	$	40,460	$	18,483	$	1,361	$	13,496	$	—	$	4	$	73,804
Collectively measured	12,560,011		10,590,328		335,613		2,429,297		14,801,971		31,937		40,749,157
Loans held at fair value	—		—		—		200,447		—		—		200,447

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Six months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	169,604	$	223,853	$	7,116	$	13,133	$	13,069	$	490	$	427,265
Other adjustments	—		—		—		—		(50)		—		(50)
Charge-offs	(20,799)		(20,995)		(74)		(61)		(16,424)		(244)		(58,597)
Recoveries	1,429		121		64		10		5,190		47		6,861
Provision for credit losses	31,757		20,749		136		(4,309)		12,961		296		61,590
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069

Six months ended June 30, 2023			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	142,769	$	184,352	$	7,573	$	11,585	$	10,671	$	498	$	357,448
Cumulative effect adjustment from the adoption of ASU 2016-13	111		1,356		(33)		(692)		—		(1)		741
Other adjustments	—		—		—		—		45		—		45
Charge-offs	(8,172)		(8,129)		—		—		(9,303)		(263)		(25,867)
Recoveries	897		125		72		10		2,213		55		3,372
Provision for credit losses	7,537		37,992		(645)		1,349		5,420		(12)		51,641
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380

For the three and six months ended June 30, 2024, the Company recognized approximately $39.9 million and $61.6 million of provision for credit losses, respectively, related to loans and lending agreements. The provision for each period was primarily the result of loan growth across a majority of segments coupled with losses experienced in the Commercial, Commercial Real Estate and Premium Finance Receivables portfolios. Uncertainties remain regarding expected economic performance and macroeconomic forecasts utilized in the measurement of the allowance for credit losses as of June 30, 2024. Net charge-offs in the three and six month periods ending June 30, 2024, totaled $30.0 million and $51.7 million, respectively.

Held-to-maturity debt securities

The allowance for credit losses on the Company’s held-to-maturity debt securities is presented as a reduction to the amortized cost basis of held-to-maturity securities on the Company's Consolidated Statements of Condition. For the three and six month period ended June 30, 2024, the Company recognized approximately $162,000 and $144,000, respectively, of provision for credit losses related to held-to-maturity securities. At June 30, 2024, the Company did not identify any held-to-maturity debt securities within its portfolio that would require a charge-off.

Loan Modifications to Borrowers Experiencing Financial Difficulties

The Company’s approach to restructuring or modifying 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. 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.

Restructurings may arise when, 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 other real estate owned (“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

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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. At June 30, 2024, the Company had $161,000 of foreclosed residential real estate properties included within OREO. Further, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $43.8 million and $50.4 million at June 30, 2024 and 2023, respectively.

The tables below presents a summary of the period-end balance of loans to borrowers experiencing financial difficulties during the three and six months ended June 30, 2024 and 2023:

Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Interest Only Payments		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	2,161	0.0	%	$	2,010	$	—	$	—	$	97	$	54
Commercial real estate
Non-construction	340		0.0		21		—		319		—		—
Home equity	—		—		—		—		—		—		—
Residential real estate	81		0.0		81		—		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	2,588	0.0	%	$	2,115	$	3	$	319	$	97	$	54

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	2,161	5	143	34
Commercial real estate
Non-construction	340		13	—	—
Home equity	—		—	—	—
Residential real estate	81		12	—	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	2,588	7	140	34

Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	423	0.0	%	$	—	$	—	$	—	$	423
Commercial real estate
Non-construction	4,376		0.0		—		—		—		4,376
Home equity	—		—		—		—		—		—
Residential real estate	264		0.0		143		—		—		121
Premium finance receivables
Property and casualty insurance loans	—		—		—		—		—		—
Total loans	$	5,063	0.0	%	$	143	$	—	$	—	$	4,920

20

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	423	41	144	—
Commercial real estate
Non-construction	4,376		39	212	—
Home equity	—		—	—	—
Residential real estate	264		123	262	—
Premium finance receivables
Property and casualty insurance loans	—		—	—	—
Total loans	$	5,063	43	207	—

Six Months Ended June 30, 2024 (Dollars in thousands)	Total (1)		Percentage of Total Class of Loan		Extension of Term (1)		Reduction of  Interest Rate (1)		Interest Only Payments		Delay in Contractual Payments (1)		Extension of Term and Reduction of Interest Rate (1)
Commercial
Commercial, industrial and other	$	3,219	0.0	%	$	2,956	$	—	$	—	$	97	$	166
Commercial real estate
Non-construction	1,469		0.0		293		—		319		857		—
Home equity	89		0.0		89		—		—		—		—
Residential real estate	282		0.0		114		168		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	5,065	0.0	%	$	3,455	$	171	$	319	$	954	$	166

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2024 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	3,219	8	113	34
Commercial real estate
Non-construction	1,469		29	—	16
Home equity	89		12	—	—
Residential real estate	282		19	201	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	5,065	11	156	18

21

Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	37,897	0.3	%	$	1,938	$	221	$	35,265	$	473
Commercial real estate
Non-construction	5,709		0.1		467		827		39		4,376
Home equity	203		0.1		203		—		—		—
Residential real estate	1,972		0.1		1,396		271		—		305
Premium finance receivables
Property and casualty insurance loans	11		0.0		3		—		—		8
Total loans	$	45,792	0.1	%	$	4,007	$	1,319	$	35,304	$	5,162

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	37,897	15	108	16
Commercial real estate
Non-construction	5,709		40	232	101
Home equity	203		12	—	—
Residential real estate	1,972		57	284	—
Premium finance receivables
Property and casualty insurance loans	11		0	50	—
Total loans	$	45,792	36	223	17

The Company had commitments of $5.1 million and $43.5 million as of June 30, 2024 and June 30, 2023, respectively, to lend additional funds to borrowers experiencing financial difficulty and for whom the Company has modified the terms of loans in the form of principal forgiveness, an interest rate reduction, an other-than insignificant payment delay or a term extension during the periods presented.

The following table presents a summary of all modified loans for borrowers experiencing financial difficulties and such loans that were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	For the Twelve Months Ended June 30, 2024		Three Months Ended June 30, 2024		Six Months Ended June 30, 2024		For the Six Months Ended June 30, 2023		Three Months Ended June 30, 2023		Six Months Ended June 30, 2023
	Total		Payments in  Default  (1)		Payments in  Default  (1)		Total		Payments in  Default  (1)		Payments in  Default  (1)
Commercial
Commercial, industrial and other	$	4,685	$	1,784	$	1,784	$	37,897	$	18,729	$	18,729
Commercial real estate
Construction and development	2,486		—		—		—		—		—
Non-construction	2,644		639		2,443		5,709		923		923
Home equity	586		—		—		203		203		203
Residential real estate	417		384		384		1,972		541		541
Premium finance receivables
Property and casualty insurance loans	18		14		14		11		11		11
Total loans	$	10,836	$	2,821	$	4,625	$	45,792	$	20,407	$	20,407

(1)Modified loans considered to be in payment default are over 30 days past due subsequent to the restructuring.

22

(8) Goodwill and Other Acquisition-Related Intangible Assets

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

(In thousands)	December 31, 2023		Goodwill Acquired		Impairment Loss		Goodwill Adjustments		June 30, 2024
Community banking	$	545,671	$	—	$	—	$	—	$	545,671
Specialty finance	39,006		—		—		(717)		38,289
Wealth management	71,995		—		—		—		71,995
Total	$	656,672	$	—	$	—	$	(717)	$	655,955

The specialty finance unit’s goodwill decreased $717,000 in the first six months of 2024 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

The Company assesses each reporting unit’s goodwill for impairment on at least an annual basis and considers potential indicators of impairment at each reporting date between annual goodwill impairment tests. At October 1, 2023, the Company utilized a qualitative approach for its annual goodwill impairment tests of the community banking, specialty finance and wealth management reporting units and determined that it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit at that time.

At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. The Company assessed whether events and circumstances resulted in it being more likely than not that the fair value of any reporting unit was less than its carrying value. Potential impairment indicators considered include the condition of the economy and banking industry; government intervention and regulatory updates; the impact of recent events to financial performance and cost factors of the reporting units; performance of the Company’s stock and other relevant events.

At the conclusion of this assessment of all reporting units, the Company determined that as of June 30, 2024, it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit.

23

A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of June 30, 2024 is as follows:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
Community banking segment:
Core deposit intangibles with finite lives:
Gross carrying amount	$	55,206	$	55,206	$	55,206
Accumulated amortization	(47,666)		(46,125)		(44,432)
Net carrying amount	$	7,540	$	9,081	$	10,774
Trademark with indefinite lives:
Carrying amount	5,800		5,800		5,800
Total net carrying amount	$	13,340	$	14,881	$	16,574
Specialty finance segment:
Customer list intangibles with finite lives:
Gross carrying amount	$	1,961	$	1,963	$	1,963
Accumulated amortization	(1,861)		(1,837)		(1,813)
Net carrying amount	$	100	$	126	$	150
Wealth management segment:
Customer list and other intangibles with finite lives:
Gross carrying amount	$	26,630	$	26,630	$	26,630
Accumulated amortization	(19,463)		(18,748)		(17,701)
Net carrying amount	$	7,167	$	7,882	$	8,929
Total acquisition-related intangible assets:
Gross carrying amount	$	89,597	$	89,599	$	89,599
Accumulated amortization	(68,990)		(66,710)		(63,946)
Total other acquisition-related intangible assets, net	$	20,607	$	22,889	$	25,653

Estimated amortization
Actual in six months ended June 30, 2024	$	2,280
Estimated remaining in 2024	2,021
Estimated—2025	3,482
Estimated—2026	2,772
Estimated—2027	2,156
Estimated—2028	1,591

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. The customer list and other intangibles recognized in connection with prior acquisitions within the wealth management segment are being amortized over a period of up to ten years on a straight-line or accelerated basis. Indefinite-lived intangible assets consist of certain trade and domain names recognized in connection with the acquisition of certain assets of Veterans First Mortgage in 2018. As indefinite-lived intangible assets are not amortized, the Company assesses impairment on at least an annual basis.

Total amortization expense associated with finite-lived acquisition-related intangibles totaled approximately $2.3 million and $2.7 million for the six months ended June 30, 2024 and 2023, respectively.

24

(9) Mortgage Servicing Rights (“MSRs”)

The following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the periods indicated:

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
(In thousands)	2024		2023		2024		2023
Fair value at beginning of the period	$	201,044	$	224,470	$	192,456	$	230,225
Additions from loans sold with servicing retained	8,223		8,720		13,602		13,827
Servicing rights sold	—		(30,170)		—		(30,170)
Estimate of changes in fair value due to:
Payoffs, paydowns and repurchases	(5,534)		(5,043)		(9,920)		(8,952)
Changes in valuation inputs or assumptions	877		2,715		8,472		(4,238)
Fair value at end of the period	$	204,610	$	200,692	$	204,610	$	200,692
Unpaid principal balance of mortgage loans serviced for others	$	12,211,027	$	11,752,223

The Company recognizes MSR assets upon the sale of residential real estate loans to external third parties when it retains the obligation to service the loans and the servicing fee is more than adequate compensation. MSRs are included in other assets in the Consolidated Statements of Condition. The initial recognition of MSR assets from loans sold with servicing retained and subsequent changes in fair value of all MSRs are recognized in mortgage banking revenue. MSRs are subject to changes in value from actual and expected prepayment of the underlying loans.

The estimation of fair value related to MSRs is partly impacted by the Company exercising its early buyout options (“EBO”) on eligible loans previously sold to the Government National Mortgage Association (“GNMA”). Under such optional repurchase program, financial institutions acting as servicers are allowed to buy back from the securitized loan pool individual delinquent mortgage loans meeting certain criteria for which the institution was the original transferor of such loans. At the option of the servicer and without prior authorization from GNMA, the servicer may repurchase such delinquent loans for an amount equal to the remaining principal balance of the loan. At the time of such repurchase, any MSR value related to such loans is derecognized.

The MSR asset fair value is determined by using a discounted cash flow model that incorporates the objective characteristics of the portfolio as well as subjective valuation parameters that purchasers of servicing would apply to such portfolios sold into the secondary market. The subjective factors include loan prepayment speeds, discount rates, servicing costs and other economic factors. The Company uses a third party to assist in the valuation of MSRs.

Periodically, the Company will purchase options for the right to purchase securities not currently held within the banks’ investment portfolios or enter into interest rate swaps in which the Company elects not to designate such derivatives as hedging instruments. These option and swap transactions are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s MSRs. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. For more information regarding these hedges outstanding as of June 30, 2024 and June 30, 2023, see Note (14) “Derivative Financial Instruments” in Item 1 of this report.

25

(10) Deposits

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

(Dollars in thousands)	June 30, 2024			December 31, 2023			June 30, 2023
Balance:
Non-interest-bearing	$	10,031,440		$	10,420,401		$	10,604,915
NOW and interest-bearing demand deposits	5,053,909			5,797,649			5,814,836
Wealth management deposits	1,490,711			1,614,499			1,417,984
Money market	16,320,017			15,149,215			14,523,124
Savings	5,882,179			5,790,334			5,321,578
Time certificates of deposit	9,270,770			6,625,072			6,356,270
Total deposits	$	48,049,026		$	45,397,170		$	44,038,707
Mix:
Non-interest-bearing	21		%	23		%	24		%
NOW and interest-bearing demand deposits	11			13			13
Wealth management deposits	3			4			3
Money market	34			33			33
Savings	12			13			12
Time certificates of deposit	19			14			15
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 Wintrust Investments, LLC (“Wintrust Investments”), Chicago Deferred Exchange Company (“CDEC”) and trust and asset management customers of the Company.

(11) 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:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
FHLB advances	$	3,176,309	$	2,326,071	$	2,026,071
Other borrowings:
Notes payable	157,024		171,282		185,539
Short-term borrowings	—		13,430		17,773
Secured borrowings	391,395		401,897		401,669
Other	58,160		59,204		60,238
Total other borrowings	606,579		645,813		665,219
Subordinated notes	298,113		437,866		437,628
Total FHLB advances, other borrowings and subordinated notes	$	4,081,001	$	3,409,750	$	3,128,918

Descriptions of the Company’s FHLB advances, other borrowings, and subordinated notes are included in Note (11) “Federal Home Loan Bank Advances”, Note (12) “Subordinated Notes” and Note (13) “Other Borrowings” of the 2023 Form 10-K.

Notes Payable

Notes payable balances represent the balances on the Company’s credit agreement with certain unaffiliated banks. At June 30, 2024, the outstanding principal balance under the term loan facility was $157.0 million and there was no outstanding balance under the revolving credit facility. Borrowings under notes payable 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, 2024, the Company was in compliance with all such covenants.

26

Short-term Borrowings

Short-term borrowings include securities sold under repurchase agreements of customer sweep accounts in connection with master repurchase agreement at the banks. There were no borrowings at June 30, 2024 compared to $13.4 million and $16.3 million at December 31, 2023 and June 30, 2023, respectively. As of June 30, 2024, the Company had no pledged securities related to its customer balances in sweep accounts.

Secured Borrowings

The balance of secured borrowings primarily represents a third party Canadian transaction (“Canadian Secured Borrowing”). Under the Canadian Secured Borrowing, the Company, through its subsidiary, FIFC Canada, sells an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for cash payments pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). On May 31, 2023, the Company entered into the eleventh amending agreement to the Receivables Purchase Agreement dated as of December 16, 2014. The amended Receivables Purchase Agreement provides for, among other things, an extension of the maturity date to December 15, 2024, an increase to the facility limit from $420 million to $520 million, and a fee rate increase from 0.775% to 0.825%. Additionally, since Canadian Dollar Offered Rate (“CDOR”) ceased being used in Canada in June 2024, references to CDOR changed to the Benchmark rate.

At June 30, 2024, the translated balance of the secured borrowings totaled $380.3 million compared to $392.5 million at December 31, 2023 and $392.4 million at June 30, 2023. The interest rate under the Receivables Purchase Agreement is the Canadian Commercial Paper Rate plus fee rate of 0.825%.

The remaining $11.1 million, $9.4 million and $9.3 million within secured borrowings at June 30, 2024, December 31, 2023 and June 30, 2023, respectively, represent 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.

Other Borrowings

Other borrowings represent a fixed-rate promissory note (“Fixed-Rate Promissory Note”) issued by the Company in June 2017. Subsequent amendments to the Fixed-Rate Promissory Note since issuance increased the principal amount to $66.4 million, reduced the interest rate to 1.70% and extended the maturity date to March 31, 2025. The Fixed-Rate Promissory Note contains several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and indebtedness. At June 30, 2024, the Company was in compliance with all such covenants.

Subordinated Notes

At June 30, 2024, the Company had outstanding subordinated notes totaling $298.1 million compared to $437.9 million and $437.6 million at December 31, 2023 and June 30, 2023, respectively. The notes issued in 2019 have a stated interest rate of 4.85% and mature in June 2029. In the second quarter of 2024, the Company repaid the $140.0 million of subordinated notes issued in 2014. The notes had a stated interest rate of 5.00% and matured in June 2024.

(12) Junior Subordinated Debentures

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2024. The junior subordinated debentures represent the par value of the obligations owed to the Trusts.

27

(Dollars in thousands)	Common Securities		Trust  Preferred Securities		Junior Subordinated Debentures		Rate Structure (1)	Contractual Rate at 6/30/2024		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	S+0.26161+3.25	8.84	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		S+0.26161+2.80	8.39	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		S+0.26161+2.60	8.19	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		S+0.26161+1.95	7.55	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		S+0.26161+1.45	7.04	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		S+0.26161+1.63	7.23	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		S+0.26161+3.00	8.59	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		S+0.26161+1.75	7.35	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		S+0.26161+1.62	7.22	%	06/2007	09/2037	06/2012
Total					$	253,566		7.79	%

(1)The interest rates on the variable rate junior subordinated debentures are based on the three-month Chicago Mercantile Exchange (“CME”) Term Secured Overnight Financing Rate (“SOFR”) and reset on a quarterly basis.

The junior subordinated debentures totaled $253.6 million at June 30, 2024, December 31, 2023 and June 30, 2023. At June 30, 2024, the weighted average contractual interest rate on the junior subordinated debentures was 7.79%.

(13) 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 (10) “Deposits” in Item 1 of this report 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 table 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 Note (1) “Summary of Significant Accounting Policies” of the 2023 Form 10-K. The Company evaluates segment performance based on after-tax profit or loss and other appropriate profitability measures common to each segment.

28

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, 2024		June 30, 2023
Net interest income:
Community Banking	$	358,832	$	346,232	$	12,600	4	%
Specialty Finance	95,191		84,993		10,198		12
Wealth Management	7,928		7,404		524		7
Total Operating Segments	461,951		438,629		23,322		5
Intersegment Eliminations	8,659		8,908		(249)		(3)
Consolidated net interest income	$	470,610	$	447,537	$	23,073	5	%
Provision for credit losses:
Community Banking	$	36,325	$	26,713	$	9,612	36	%
Specialty Finance	3,736		1,801		1,935		107
Wealth Management	—		—		—		—
Total Operating Segments	40,061		28,514		11,547		40
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	40,061	$	28,514	$	11,547	40	%
Non-interest income:
Community Banking	$	71,619	$	68,130	$	3,489	5	%
Specialty Finance	32,317		31,737		580		2
Wealth Management	35,605		33,391		2,214		7
Total Operating Segments	139,541		133,258		6,283		5
Intersegment Eliminations	(18,394)		(20,228)		1,834		(9)
Consolidated non-interest income	$	121,147	$	113,030	$	8,117	7	%
Net revenue:
Community Banking	$	430,451	$	414,362	$	16,089	4	%
Specialty Finance	127,508		116,730		10,778		9
Wealth Management	43,533		40,795		2,738		7
Total Operating Segments	601,492		571,887		29,605		5
Intersegment Eliminations	(9,735)		(11,320)		1,585		(14)
Consolidated net revenue	$	591,757	$	560,567	$	31,190	6	%
Segment profit:
Community Banking	$	91,235	$	102,517	$	(11,282)	(11)	%
Specialty Finance	53,091		46,402		6,689		14
Wealth Management	8,062		5,831		2,231		38
Consolidated net income	$	152,388	$	154,750	$	(2,362)	(2)	%
Segment assets:
Community Banking	$	47,611,508	$	42,452,673	$	5,158,835	12	%
Specialty Finance	11,014,840		10,549,819		465,021		4
Wealth Management	1,155,168		1,283,684		(128,516)		(10)
Consolidated total assets	$	59,781,516	$	54,286,176	$	5,495,340	10	%

NM - Not meaningful

29

	Six Months Ended				$ Change in Contribution		% Change  in Contribution
(Dollars in thousands)	June 30, 2024		June 30, 2023
Net interest income:
Community Banking	$	722,517	$	716,080	$	6,437	1	%
Specialty Finance	177,473		155,344		22,129		14
Wealth Management	15,686		16,359		(673)		(4)
Total Operating Segments	915,676		887,783		27,893		3
Intersegment Eliminations	19,128		17,749		1,379		8
Consolidated net interest income	$	934,804	$	905,532	$	29,272	3	%
Provision for credit losses:
Community Banking	$	56,717	$	47,812	$	8,905	19	%
Specialty Finance	5,017		3,747		1,270		34
Wealth Management	—		—		—		—
Total Operating Segments	61,734		51,559		10,175		20
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	61,734	$	51,559	$	10,175	20	%
Non-interest income:
Community Banking	$	146,255	$	136,863	$	9,392	7	%
Specialty Finance	59,634		57,527		2,107		4
Wealth Management	94,090		63,688		30,402		48
Total Operating Segments	299,979		258,078		41,901		16
Intersegment Eliminations	(38,252)		(37,279)		(973)		3
Consolidated non-interest income	$	261,727	$	220,799	$	40,928	19	%
Net revenue:
Community Banking	$	868,772	$	852,943	$	15,829	2	%
Specialty Finance	237,107		212,871		24,236		11
Wealth Management	109,776		80,047		29,729		37
Total Operating Segments	1,215,655		1,145,861		69,794		6
Intersegment Eliminations	(19,124)		(19,530)		406		(2)
Consolidated net revenue	$	1,196,531	$	1,126,331	$	70,200	6	%
Segment profit:
Community Banking	$	211,282	$	236,749	$	(25,467)	12	%
Specialty Finance	95,614		83,139		12,475		4
Wealth Management	32,786		15,060		17,726		(10)
Consolidated net income	$	339,682	$	334,948	$	4,734	10	%

NM - Not meaningful

(14) 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 or commodity price) 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 collars 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; (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; and (5) options and swaps to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The Company also enters into derivatives (typically interest rate swaps and commodity forward contracts) 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.

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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 accumulated other comprehensive income or loss 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.

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 are recorded as a component of accumulated other comprehensive income or loss, 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 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. Commodity derivative fair values are computed based on changes in the price per unit 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, 2024, December 31, 2023 and June 30, 2023:

	Derivative Assets						Derivative Liabilities
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	7,532	$	40,116	$	2,154	$	96,825	$	44,456	$	121,347
Interest rate derivatives designated as Fair Value Hedges	12,678		12,349		16,255		—		273		—
Total derivatives designated as hedging instruments under ASC 815	$	20,210	$	52,465	$	18,409	$	96,825	$	44,729	$	121,347
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	215,275	$	211,490	$	261,205	$	217,157	$	210,397	$	261,066
Interest rate lock commitments	4,795		4,511		3,487		67		—		172
Forward commitments to sell mortgage loans	102		—		2,769		597		5,212		38
Commodity forward contracts	702		888		434		304		609		214
Foreign exchange contracts	2,776		6,372		8,444		2,709		6,308		8,335
Total derivatives not designated as hedging instruments under ASC 815	$	223,650	$	223,261	$	276,339	$	220,834	$	222,526	$	269,825
Total Derivatives	$	243,860	$	275,726	$	294,748	$	317,659	$	267,255	$	391,172

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 collars as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts to or from a counterparty in exchange for the Company receiving or paying fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate collars designated as cash flow hedges involve the settlement of amounts in which the interest rate index specified in the contract exceeds the agreed upon cap strike rate or in which the interest rate index specified in the contract is below the agreed upon floor strike rate at the end of each period.

As of June 30, 2024, the Company had various interest rate collar and swap derivatives designated as cash flow hedges of variable rate loans. When the relationship between the hedged item and hedging instrument is highly effective at achieving offsetting changes in cash flows attributable to the hedged risk, changes in the fair value of these cash flow hedges are recorded in accumulated other comprehensive income or loss and are subsequently reclassified to interest income as interest payments

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are made on such variable rate loans. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income.

The table below provides details on these cash flow hedges, summarized by derivative type and maturity, as of June 30, 2024:

	June 30, 2024
	Notional		Fair Value
(In thousands)	Amount		Asset (Liability)
Interest Rate Collars at 1-month CME term SOFR:
Buy 2.250% floor, sell 3.743% cap; matures September 2025	$	1,250,000	$	(16,589)
Buy 2.750% floor, sell 4.320% cap; matures October 2026	500,000		(4,740)
Buy 2.000% floor, sell 3.450% cap; matures September 2027	1,250,000		(37,289)
Interest Rate Swaps at 1-month CME term SOFR:
Fixed 3.748%; matures December 2025	250,000		(3,114)
Fixed 3.759%; matures December 2025	250,000		(3,075)
Fixed 3.680%; matures February 2026	250,000		(3,735)
Fixed 4.176%; matures March 2026	250,000		(1,773)
Fixed 3.915%; matures March 2026	250,000		(2,826)
Fixed 4.450%; matures July 2026	250,000		(206)
Fixed 3.515%, matures December 2026	250,000		(4,597)
Fixed 3.512%; matures December 2026	250,000		(4,614)
Fixed 3.453%; matures February 2027	250,000		(5,369)
Fixed 4.150%; matures July 2027	250,000		(591)
Fixed 3.748%; matures March 2028	250,000		(3,203)
Fixed 3.526%; matures March 2028	250,000		(5,104)
Fixed 3.993%; matures October 2029	100,000		444
Fixed 3.993%; matures October 2029	250,000		1,111
Fixed 4.245%; matures November 2029	175,000		2,988
Fixed 4.245%; matures November 2029	175,000		2,988
Total Cash Flow Hedges	$	6,700,000	$	(89,294)

In the first quarter of 2022, the Company terminated interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $1.0 billion and a five-year term effective July 2022. At the time of termination, the fair value of the derivative contracts totaled an asset of $66.5 million, with such adjustments to fair value recorded in accumulated other comprehensive income or loss. In the second quarter of 2022, the Company terminated two additional interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $500.0 million each effective since April 2020. The remaining terms of such derivative contracts were through March 2023 and April 2024 and, at the time of termination, the fair value of the derivative contracts totaled assets of $3.7 million and $10.7 million, respectively, with such adjustments to fair value recorded in accumulated other comprehensive income or loss. In the fourth quarter of 2022, the Company terminated one additional interest rate collar derivative contract designated as a cash flow hedge of a term borrowing facility with a total notional value of $64.3 million effective since September 2018. The remaining term of such derivative contract was through September 2023 and, at the time of termination, the fair value of the derivative contract totaled an asset of $875,000, with such adjustments to fair value recorded in accumulated other comprehensive income or loss.

For all such terminations, as the hedged forecasted transactions (interest payments on variable rate deposits and a term borrowing facility) are still expected to occur over the remaining term of such terminated derivatives, such adjustments will remain in accumulated other comprehensive income or loss and be reclassified as a reduction to interest expense on a straight-line basis over the original term of the terminated derivative contracts.

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A rollforward of the amounts in accumulated other comprehensive income or loss related to interest rate derivatives designated as cash flow hedges, including such derivative contracts terminated during the period, follows:

	Three Months Ended				Six Months Ended
(In thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Unrealized gain at beginning of period	$	(38,553)	$	44,692	$	43,538	$	10,026
Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings	20,524		14,267		40,342		18,014
Amount of loss recognized in other comprehensive income or loss	(31,367)		(120,698)		(133,276)		(89,779)
Unrealized (loss) gain at end of period	$	(49,396)	$	(61,739)	$	(49,396)	$	(61,739)

As of June 30, 2024, the Company estimated that during the next 12 months $60.6 million will be reclassified from accumulated other comprehensive income or loss as a decrease to net interest income. Such estimate consists of $13.3 million reclassified as a reduction to interest expense on the terminated cash flow hedges discussed above and $73.9 million reclassified as a reduction to interest income related to the interest rate collars and swaps noted above that remain outstanding.

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, 2024, the Company had 13 interest rate swaps with an aggregate notional amount of $213.1 million that were designated as fair value hedges primarily associated with fixed rate commercial and industrial and commercial real estate loans as well as life insurance premium finance receivables.

For derivatives designated and that qualify as fair value hedges, the net gain or loss from the entire change in the fair value of the derivative instrument is recognized in the same income statement line item as the earnings effect, including the net gain or loss, of the hedged item (interest income earned on fixed rate loans) when the hedged item affects earnings.

The following table presents the carrying amount of the hedged assets/(liabilities) and the cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets/(liabilities) that are designated as a fair value hedge accounting relationship as of June 30, 2024:

(In thousands)		June 30, 2024
Derivatives in Fair Value Hedging Relationships	Location in the Statement of Condition	Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued
Interest rate swaps	Loans, net of unearned income	$	199,732	$	(12,684)	$	(69)
	Available-for-sale debt securities	672		(18)		—

The following table presents the loss or gain recognized related to derivative instruments that are designated as fair value hedges for the respective period:

(In thousands) Derivatives in Fair Value Hedging Relationships	Location of (Loss)/Gain Recognized in Income on Derivative	Three Months Ended		Six Months Ended
		June 30, 2024		June 30, 2024
Interest rate swaps	Interest and fees on loans	$	(16)	$	(6)
	Interest income - investment securities	—		—

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

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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—Periodically, the Company may purchase interest rate cap derivatives designed to act as an economic hedge of the risk of the negative impact on its fixed-rate loan portfolios from rising interest rates. As of June 30, 2024, there were no interest rate caps outstanding that were designed to act as an economic hedge.

Additionally, 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 other non-interest income. At June 30, 2024 and December 31, 2023, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $12.2 billion and $11.4 billion, respectively, (all interest rate swaps and caps with customers and third parties) related to this program. At June 30, 2024 these interest rate derivatives had maturity dates ranging from July 2024 to January 2037.

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 its 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, 2024 and December 31, 2023, the Company had interest rate lock commitments with an aggregate notional amount of approximately $237.9 million and $129.9 million, and forward commitments to sell mortgage loans with an aggregate notional amount of approximately $641.3 million and $626.9 million, respectively. 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.

Commodity Derivatives—The Company has commodity forward contracts resulting from a service the Company provides to certain qualified borrowers. The Company’s banking subsidiaries execute certain derivative products directly with qualified commercial borrowers to facilitate their respective risk management strategies. For example, these arrangements allow the Company’s commercial borrowers to effectively purchase or sell a given commodity at an agreed-upon price on an agreed-upon settlement date. 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 other non-interest income. At June 30, 2024 and December 31, 2023, the Company had commodity derivative transactions with an aggregate notional amount of approximately $12.6 million and $8.4 million, respectively, (all forward contracts with customers and third parties) related to this program. At June 30, 2024, these commodity derivatives had maturity dates ranging from July 2024 to October 2025.

Foreign Currency Derivatives—The Company has foreign currency derivative contracts resulting from a service the Company provides to certain qualified customers. The Company’s banking subsidiaries execute certain derivative products directly with qualified customers to facilitate their respective risk management strategies related to foreign currency fluctuations. For example, these arrangements allow the Company’s customers to effectively exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. 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 other non-interest income. As of June 30, 2024 and December 31, 2023, the Company held foreign currency derivatives with an aggregate notional amount of approximately $138.8 million and $144.3 million, respectively.

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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 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 the fair value of these contracts are recognized as other non-interest income. There were no covered call options outstanding as of June 30, 2024, December 31, 2023 or June 30, 2023.

Periodically, the Company will purchase options for the right to purchase securities not currently held within the banks’ investment portfolios or enter into interest rate swaps in which the Company elects to not designate such derivatives as hedging instruments. These option and swap transactions are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts are included in mortgage banking revenue. The Company held six interest rate derivatives with an aggregate notional value of $170.0 million at June 30, 2024 and four interest rate derivatives with an aggregate notional value of and $195.0 million at December 31, 2023, for such purpose of economically hedging a portion of the fair value adjustment related to its mortgage servicing rights portfolio.

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

(In thousands)		Three Months Ended				Six Months Ended
Derivative	Location in income statement	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Interest rate swaps and caps	Trading gains, net	$	(102)	$	12	$	493	$	812
Mortgage banking derivatives	Mortgage banking revenue	3,721		4,791		3,706		8,431
Commodity contracts	Trading gains, net	130		49		398		226
Foreign exchange contracts	Trading gains, net	11		—		19		—
Covered call options	Fees from covered call options	2,056		2,578		6,903		12,969
Derivative contract held as economic hedge on MSRs	Mortgage banking revenue	(772)		(726)		(3,349)		220

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, 2024, there were no interest rate derivatives in a net liability position that were subject to such agreements. The fair value of such derivatives includes accrued interest related to these agreements. If the Company had breached any of these provisions and those derivatives subject to such agreements were in a liability position, 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 table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Gross Amounts Recognized	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Less: Amounts offset in the Statements of Condition	—		—		—		—		—		—
Net amount presented in the Statements of Condition	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Gross amounts not offset in the Statements of Condition
Offsetting Derivative Positions	(114,662)		(76,514)		(125,159)		(114,662)		(76,514)		(125,159)
Collateral Posted	(85,762)		(144,899)		(145,735)		—		—		—
Net Credit Exposure	$	35,061	$	42,542	$	8,720	$	199,320	$	178,612	$	257,254

(15) 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 inputs 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. The 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 debt securities, trading account securities and equity securities with readily determinable fair value—Fair values for available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value 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 determine the fair value of these securities. 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 fair value of U.S. Treasury securities and certain equity securities with readily determinable fair value are based on unadjusted quoted prices in active markets for identical securities. As such, these securities are classified as Level 1 in the fair value hierarchy.

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

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At June 30, 2024, the Company classified $95.8 million of municipal securities as Level 3. These municipal securities are bond issues for various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated investment debt security, the Investment Operations Department references a rated, 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). For bond issues without comparable bond proxies, a rating of “BBB” was assigned. In the second quarter of 2024, all of the ratings derived by the Investment Operations Department using the above process were “BBB” or better. The fair value measurement noted above 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, 2024 are 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.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

At June 30, 2024, the Company classified $40.5 million of certain delinquent mortgage loans held-for-sale as Level 3. For such delinquent loans in which investor interest may be limited, the Company estimates fair value by discounting future scheduled cash flows for the specific loan through its life, adjusted for estimated credit losses. The Company uses a discount rate based on prevailing market coupon rates on loans with similar characteristics. The assumed weighted average discount rate used as an input to value these loans at June 30, 2024 was 6.83%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, the weighted average credit discount used as an input to value the specific loans was 0.36% with credit loss discount ranging from 0%-13% at June 30, 2024.

Loans held-for-investment—The fair value for certain loans in which the Company previously 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 prepayment or life assumptions. These loans primarily consist of early buyout loans guaranteed by U.S. government agencies that are delinquent and, as a result, investor interest may be limited. The Company uses a discount rate based on the actual coupon rate of the underlying loan. At June 30, 2024, the Company classified $45.7 million of loans held-for-investment carried at fair value as Level 3. The assumed weighted average discount rate used as an input to value these loans at June 30, 2024 was 6.83%. 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 average life as well as credit losses. The weighted average prepayments speed used as an input to value current loans was 7.86% at June 30, 2024. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation. For delinquent loans in which performance is not assumed and there is a higher probability of resolution of the loan ending in foreclosure, the weighted average life of such loans was 5.9 years. Average life is inversely related to the fair value of these loans as an increase in estimated life results in a decreased valuation. Additionally, the weighted average credit discount used as an input to value the specific loans was 1.10% with credit loss discounts ranging from 0%-17% at June 30, 2024.

MSRs—Fair value for MSRs is determined utilizing a valuation model which calculates the fair value of each servicing right based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing right, given current market conditions. At June 30, 2024, the Company classified $204.6 million of MSRs as Level 3. The weighted average discount rate used as an input to value the pool of MSRs at June 30, 2024 was 10.98% with discount rates applied ranging from 1%-36%. 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 ranged from 0%-90% or a weighted average prepayment speed of 7.86%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $77 and $361, 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. See Note (9) “Mortgage Servicing Rights (“MSRs”)” in Item 1 of this report for further discussion of MSRs.

37

Derivative instruments—The Company’s derivative instruments include interest rate swaps, caps and collars, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans, commodity future contracts and foreign currency contracts. Interest rate swaps, caps and collars and commodity future contracts are valued by a third party, using models that primarily use market observable inputs, such as yield curves and commodity prices prevailing at the measurement date, and are classified as Level 2 in the fair value hierarchy. 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, 2024, the Company classified $4.8 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, 2024 was 81.17% with pull-through rates applied ranging from 4% 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. These assets are classified as Level 2 in the fair value hierarchy.

38

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

	June 30, 2024
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	102,712	$	102,712	$	—	$	—
U.S. government agencies	45,192		—		45,192		—
Municipal	146,608		—		50,816		95,792
Corporate notes	77,975		—		77,975		—
Mortgage-backed	3,957,470		—		3,957,470		—
Trading account securities	4,134		—		4,134		—
Equity securities with readily determinable fair value	112,173		104,107		8,066		—
Mortgage loans held-for-sale	411,851		—		371,306		40,545
Loans held-for-investment	135,834		—		90,113		45,721
MSRs	204,610		—		—		204,610
Nonqualified deferred compensation assets	16,041		—		16,041		—
Derivative assets	243,860		—		239,065		4,795
Total	$	5,458,460	$	206,819	$	4,860,178	$	391,463
Derivative liabilities	$	317,659	$	—	$	317,659	$	—

	December 31, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	6,968	$	6,968	$	—	$	—
U.S. government agencies	45,124		—		45,124		—
Municipal	140,958		—		54,721		86,237
Corporate notes	76,531		—		76,531		—
Mortgage-backed	3,233,334		—		3,233,334		—
Trading account securities	4,707		—		4,707		—
Equity securities with readily determinable fair value	139,268		131,202		8,066		—
Mortgage loans held-for-sale	292,722		—		265,887		26,835
Loans held-for-investment	155,261		—		94,591		60,670
MSRs	192,456		—		—		192,456
Nonqualified deferred compensation assets	15,238		—		15,238		—
Derivative assets	275,726		—		271,216		4,510
Total	$	4,578,293	$	138,170	$	4,069,415	$	370,708
Derivative liabilities	$	267,255	$	—	$	267,255	$	—

	June 30, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	74,275		—		74,275		—
Municipal	167,411		—		53,256		114,155
Corporate notes	72,060		—		72,060		—
Mortgage-backed	3,178,735		—		3,178,735		—
Trading account securities	3,027		—		3,027		—
Equity securities with readily determinable fair value	116,275		108,209		8,066		—
Mortgage loans held-for-sale	338,728		—		309,322		29,406
Loans held-for-investment	193,953		—		132,830		61,123
MSRs	200,692		—		—		200,692
Nonqualified deferred compensation assets	14,796		—		14,796		—
Derivative assets	294,748		—		291,261		3,487
Total	$	4,654,700	$	108,209	$	4,137,628	$	408,863
Derivative liabilities	$	391,172	$	—	$	391,172	$	—

39

The aggregate remaining contractual principal balance outstanding as of June 30, 2024, December 31, 2023 and June 30, 2023 for mortgage loans held-for-sale measured at fair value under ASC 825 was $414.1 million, $291.7 million and $345.7 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $411.9 million, $292.7 million and $338.7 million, for the same respective periods, as shown in the above tables. At June 30, 2024, $2.1 million of mortgage loans held-for-sale were classified as nonaccrual compared to $649,000 as of December 31, 2023 and $582,000 as of June 30, 2023. Additionally, there were $39.4 million of loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio as of June 30, 2024 compared to $26.6 million as of December 31, 2023 and $29.6 million as of June 30, 2023. All of the nonaccrual loans and loans past due greater than 90 days and still accruing within the mortgage loans held-for-sale portfolio at June 30, 2024, December 31, 2023, and June 30, 2023 were individual delinquent mortgage loans bought back from GNMA at the unconditional option of the Company as servicer for those loans.

The aggregate remaining contractual principal balance outstanding as of June 30, 2024, December 31, 2023 and June 30, 2023 for loans held-for-investment measured at fair value under ASC 825 was $136.1 million, $156.9 million and $196.6 million, respectively, while the aggregate fair value of loans held-for-investment was $135.8 million, $155.3 million and $194.0 million, respectively, as shown in the above tables.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2024 and 2023 are summarized as follows:

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2024	$	88,219	$	33,726	$	49,317	$	201,044	$	6,212
Total net (losses) gains included in:
Net income (1)	—		205		66		3,566		(1,417)
Other comprehensive income or loss	(680)		—		—		—		—
Purchases	9,682		—		—		—		—
Settlements	(1,429)		(10,269)		(7,709)		—		—
Net transfers into Level 3	—		16,883		4,047		—		—
Balance at June 30, 2024	$	95,792	$	40,545	$	45,721	$	204,610	$	4,795

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2023	$	112,257	$	44,250	$	69,493	$	224,470	$	5,356
Total net (losses) gains included in:
Net income (1)	—		402		(619)		6,392		(1,869)
Other comprehensive income or loss	(3,161)		—		—		—		—
Purchases	6,978		—		—		—		—
Sales	—		—		—		(30,170)		—
Settlements	(1,919)		(23,973)		(16,593)		—		—
Net transfers into Level 3	—		8,727		8,842		—		—
Balance at June 30, 2023	$	114,155	$	29,406	$	61,123	$	200,692	$	3,487

(1)Changes in the balance of mortgage loans held-for-sale, MSRs, and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

40

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(In thousands)	Municipal
Balance at January 1, 2024	$	86,237	$	26,835	$	60,670	$	192,456	$	4,510
Total net (losses) gains included in:
Net income (1)	—		272		(251)		12,154		285
Other comprehensive income or loss	(2,668)		—		—		—		—
Purchases	18,066		—		—		—		—
Issuances	—		—		—		—		—
Sales	—		—		—		—		—
Settlements	(5,843)		(20,609)		(23,512)		—		—
Net transfers into Level 3	—		34,047		8,814		—		—
Balance at June 30, 2024	$	95,792	$	40,545	$	45,721	$	204,610	$	4,795

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(In thousands)	Municipal
Balance at January 1, 2023	$	117,537	$	48,655	$	84,165	$	230,225	$	1,711
Total net (losses) gains included in:
Net income (1)	—		868		(255)		637		1,776
Other comprehensive income or loss	(4,823)		—		—		—		—
Purchases	11,396		—		—		—		—
Sales	—		—		—		(30,170)		—
Settlements	(9,955)		(42,592)		(36,915)		—		—
Net transfers into Level 3	—		22,475		14,128		—		—
Balance at June 30, 2023	$	114,155	$	29,406	$	61,123	$	200,692	$	3,487

(1)Changes in the balance of mortgage loans held-for-sale, MSRs and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Also, the Company may be required, from time to time, to measure certain other assets at fair value on a non-recurring 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 non-recurring 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, 2024:

	June 30, 2024								Three Months Ended June 30, 2024 Fair Value Losses Recognized, net		Six Months Ended June 30, 2024 Fair Value Losses Recognized, net
(In thousands)	Total		Level 1		Level 2		Level 3
Individually assessed loans - foreclosure probable and collateral-dependent	$	118,286	$	—	$	—	$	118,286	$	25,113	$	41,839
Other real estate owned (1)	19,731		—		—		19,731		—		207
Total	$	138,017	$	—	$	—	$	138,017	$	25,113	$	42,046

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

Individually assessed loans—In accordance with ASC 326, the allowance for credit losses for loans and other financial assets held at amortized cost should be measured on a collective or pooled basis when such assets exhibit similar risk characteristics. In instances in which a financial asset does not exhibit similar risk characteristics to a pool, the Company is required to measure such allowance for credit losses on an individual asset basis. For the Company’s loan portfolio, nonaccrual loans are considered to not exhibit similar risk characteristics as pools and thus are individually assessed. Credit losses are 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. Individually assessed loans are considered a fair value measurement where an allowance for credit loss is established based on the fair value of collateral. Appraised values on relevant real estate properties, which may require adjustments to market-based valuation inputs, are generally used on foreclosure probable and collateral-dependent loans within the real estate portfolios.

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The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs of individually assessed loans. For more information on individually assessed loans refer to Note (7) “Allowance for Credit Losses” in Item 1 of this report. At June 30, 2024, the Company had $118.3 million of individually assessed loans classified as Level 3. All of the $118.3 million of individually assessed loans were measured at fair value based on the underlying collateral of the loan as shown in the table above.

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 other real estate owned. At June 30, 2024, the Company had $19.7 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, 2024 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	$	95,792	Bond pricing	Equivalent rating	BBB-AA+	N/A			Increase
Mortgage loans held-for-sale	40,545		Discounted cash flows	Discount rate	6.83%	6.83%			Decrease
				Credit discount	0% - 13%	0.36%			Decrease
Loans held-for-investment	45,721		Discounted cash flows	Discount rate	6.75% - 6.83%	6.83%			Decrease
				Credit discount	0% - 17%	1.10%			Decrease
				Constant prepayment rate (CPR) - current loans	7.86%	7.86%			Decrease
				Average life - delinquent loans (in years)	1.2 years - 10.6 years	5.9 years			Decrease
MSRs	204,610		Discounted cash flows	Discount rate	1% - 36%	10.98%			Decrease
				Constant prepayment rate (CPR)	0% - 90%	7.86%			Decrease
				Cost of servicing	$70 - $200	$	77		Decrease
				Cost of servicing - delinquent	$200 - 1,000	$	361		Decrease
Derivatives	4,795		Discounted cash flows	Pull-through rate	4% - 100%	81.17		%	Increase
Measured at fair value on a non-recurring basis:
Individually assessed loans - foreclosure probable and collateral-dependent	118,286		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%			Decrease
Other real estate owned	19,731		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, 2024				At December 31, 2023				At June 30, 2023
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(In thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	415,524	$	415,524	$	423,464	$	423,464	$	513,917	$	513,917
Interest-bearing deposits with banks	2,824,314		2,824,314		2,084,323		2,084,323		2,163,708		2,163,708
Available-for-sale securities	4,329,957		4,329,957		3,502,915		3,502,915		3,492,481		3,492,481
Held-to-maturity securities	3,755,924		3,060,467		3,856,916		3,215,468		3,564,473		2,887,891
Trading account securities	4,134		4,134		4,707		4,707		3,027		3,027
Equity securities with readily determinable fair value	112,173		112,173		139,268		139,268		116,275		116,275
FHLB and FRB stock, at cost	256,495		256,495		205,003		205,003		195,117		195,117
Brokerage customer receivables	13,682		13,682		10,592		10,592		15,722		15,722
Mortgage loans held-for-sale, at fair value	411,851		411,851		292,722		292,722		338,728		338,728
Loans held-for-investment, at fair value	135,834		135,834		155,261		155,261		193,953		193,953
Loans held-for-investment, at amortized cost	44,539,697		43,461,319		41,976,570		41,090,010		40,829,455		40,142,976
Nonqualified deferred compensation assets	16,041		16,041		15,238		15,238		14,796		14,796
Derivative assets	243,860		243,860		275,726		275,726		294,748		294,748
Accrued interest receivable and other	505,504		505,504		477,832		477,832		434,553		434,553
Total financial assets	$	57,564,990	$	55,791,155	$	53,420,537	$	51,892,529	$	52,170,953	$	50,807,892
Financial Liabilities
Non-maturity deposits	$	38,778,256	$	38,778,256	$	38,772,098	$	38,772,098	$	37,682,437	$	37,682,437
Time certificates of deposit	9,270,770		9,248,374		6,625,072		6,603,746		6,356,270		6,300,161
FHLB advances	3,176,309		3,195,138		2,326,071		2,367,107		2,026,071		2,072,317
Other borrowings	606,579		605,305		645,813		643,755		665,219		662,156
Subordinated notes	298,113		273,666		437,866		413,501		437,628		405,762
Junior subordinated debentures	253,566		253,571		253,566		253,579		253,566		253,562
Derivative liabilities	317,659		317,659		267,255		267,255		391,172		391,172
Accrued interest payable	66,373		66,373		51,116		51,116		45,359		45,359
Total financial liabilities	$	52,767,625	$	52,738,342	$	49,378,857	$	49,372,157	$	47,857,722	$	47,812,926

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, 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, municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and mortgage-backed securities. 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 generally categorized these held-to-maturity securities as a Level 2 fair value measurement. Fair values for certain other held-to-maturity securities are based on the bond pricing methodology discussed previously related to certain available-for-sale securities. In accordance with ASC 820, the Company has categorized these held-to-maturity securities as a Level 3 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). The fair value for 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 category. In accordance with ASC 820, the Company has categorized these loans as a Level 3 fair value measurement.

43

Time certificates of deposit. The fair value of time 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 time certificates of deposit. In accordance with ASC 820, the Company has categorized time certificates of deposit as a Level 3 fair value measurement.

FHLB advances. The fair value of FHLB advances is estimated by 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.

(16) Stock-Based Compensation Plans

As of June 30, 2024, approximately 662,000 shares were available for future grants, assuming the maximum number of shares are issued for the performance awards outstanding, approved under the Company Stock Incentive Plans (“the Plans”). Descriptions of the Plans are included in Note (18) “Stock Compensation Plans and Other Employee Benefit Plans” of the 2023 Form 10-K.

Stock-based compensation expense recognized in the Consolidated Statements of Income was $9.0 million in the second quarter of 2024 and $8.1 million in the second quarter of 2023, and $18.1 million and $16.4 million in the six months ended June 30, 2024 and 2023, respectively.

A summary of the Plans’ stock option activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2024	13,100	$	42.76
Granted	—	—
Exercised	(775)	32.26
Forfeited or canceled	—	—
Outstanding at June 30, 2024	12,325	$	43.42	4.0	$	680
Exercisable at June 30, 2024	12,325	$	43.42	4.0	$	680

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2023	68,093	$	41.14
Granted	—	—
Exercised	(54,218)	40.87
Forfeited or canceled	—	—
Outstanding at June 30, 2023	13,875	$	42.18	4.5	$	422
Exercisable at June 30, 2023	13,875	$	42.18	4.5	$	422

(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 aggregate intrinsic value of options exercised during the six months ended June 30, 2024 and June 30, 2023, was approximately $50,000 and $2.5 million, respectively. Cash received from option exercises under the Plans for the six months ended June 30, 2024 and June 30, 2023 was approximately $25,000 and $2.2 million, respectively.

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A summary of the Plans’ restricted share activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Restricted Shares	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	746,123	$	79.60	610,155	$	73.21
Granted	389,198	99.50		260,173	88.29
Vested and issued	(228,719)	69.54		(103,161)	64.08
Forfeited or canceled	(7,893)	91.47		(7,638)	82.82
Outstanding at June 30	898,709	$	90.68	759,529	$	79.52
Vested, but deferred, at June 30	99,844	$	53.98	98,247	$	53.35

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Performance-based Stock	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	553,026	$	79.69	545,379	$	70.30
Granted	96,952	58.78		186,313	92.45
Added by performance factor at vesting	111,304	100.44		23,161	63.64
Vested and issued	(295,644)	58.69		(178,203)	63.64
Forfeited or canceled	(3,154)	95.94		(7,909)	82.73
Outstanding at June 30	462,484	$	93.61	568,741	$	79.20
Vested, but deferred, at June 30	21,593	$	43.95	36,438	$	44.99

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(17) Accumulated Other Comprehensive Income or Loss and Earnings Per Share

Accumulated Other Comprehensive Income or Loss

The following tables summarize the components of other comprehensive income or loss, including the related income tax effects, and the related amount reclassified to net income for the periods presented:

(In thousands)	Accumulated Unrealized (Losses) Gains on Securities		Accumulated Unrealized Gains (Losses) on Derivative Instruments		Accumulated Foreign Currency Translation Adjustments		Total Accumulated Other Comprehensive (Loss) Income
Balance at April 1, 2024	$	(408,002)	$	(28,329)	$	(48,817)	$	(485,148)
Other comprehensive loss during the period, net of tax, before reclassifications	(15,275)		(23,070)		(2,905)		(41,250)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(885)		15,095		—		14,210
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(10)		—		—		(10)
Net other comprehensive (loss) during the period, net of tax	$	(16,170)	$	(7,975)	$	(2,905)	$	(27,050)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)
Balance at January 1, 2024	$	(350,697)	$	32,049	$	(42,583)	$	(361,231)
Other comprehensive loss during the period, net of tax, before reclassifications	(72,562)		(98,024)		(9,139)		(179,725)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(866)		29,671		—		28,805
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(47)		—		—		(47)
Net other comprehensive loss during the period, net of tax	$	(73,475)	$	(68,353)	$	(9,139)	$	(150,967)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)

Balance at April 1, 2023	$	(351,995)	$	32,809	$	(48,250)	$	(367,436)
Other comprehensive income during the period, net of tax, before reclassifications	(33,909)		(88,533)		5,344		(117,098)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(1)		10,465		—		10,464
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(20)		—		—		(20)
Net other comprehensive income during the period, net of tax	$	(33,930)	$	(78,068)	$	5,344	$	(106,654)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)
Balance at January 1, 2023	$	(386,057)	$	7,381	$	(48,960)	$	(427,636)
Other comprehensive loss during the period, net of tax, before reclassifications	594		(65,854)		6,054		(59,206)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(410)		13,214		—		12,804
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(52)		—		—		(52)
Net other comprehensive loss during the period, net of tax	$	132	$	(52,640)	$	6,054	$	(46,454)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)

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(In thousands)	Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the
Details Regarding the Component of Accumulated Other Comprehensive Income (Loss)	Three Months Ended				Six Months Ended				Impacted Line on the Consolidated Statements of Income
	June 30,				June 30,
	2024		2023		2024		2023
Accumulated unrealized gains on securities
Gains included in net income	$	1,204	$	2	$	1,178	$	562	(Losses) gains on investment securities, net
	1,204		2		1,178		562		Income before taxes
Tax effect	(319)		(1)		(312)		(152)		Income tax expense
Net of tax	$	885	$	1	$	866	$	410	Net income
Accumulated unrealized gains on derivative instruments
Amount reclassified to interest income on loans	$	23,849	$	18,661	$	48,324	$	27,733	Interest on Loans
Amount reclassified to interest expense on deposits	$	(3,325)	$	(4,657)	$	(7,982)	$	(10,245)	Interest on deposits
Amount reclassified to interest expense on other borrowings	—		263		—		526		Interest on other borrowings
	(20,524)		(14,267)		(40,342)		(18,014)		Income before taxes
Tax effect	5,429		3,802		10,671		4,800		Income tax expense
Net of tax	$	(15,095)	$	(10,465)	$	(29,671)	$	(13,214)	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
(Dollars in thousands, except per share data)		June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Net income		$	152,388	$	154,750	$	339,682	$	334,948
Less: Preferred stock dividends		6,991		6,991		13,982		13,982
Net income applicable to common shares	(A)	$	145,397	$	147,759	$	325,700	$	320,966
Weighted average common shares outstanding	(B)	61,839		61,192		61,660		61,072
Effect of dilutive potential common shares
Common stock equivalents		926		902		901		933
Weighted average common shares and effect of dilutive potential common shares	(C)	62,765		62,094		62,561		62,005
Net income per common share:
Basic	(A/B)	$	2.35	$	2.41	$	5.28	$	5.26
Diluted	(A/C)	$	2.32	$	2.38	$	5.21	$	5.18

Potentially dilutive common shares can result from stock options, restricted stock unit awards 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 of inclusion would either reduce the loss per share or increase the income per share.

At the January 2024 meeting of the board of directors of the Company (the “Board of Directors”), a quarterly cash dividend of $0.45 per share ($1.80 on an annualized basis) was declared. It was paid on February 22, 2024 to shareholders of record as of February 8, 2024. At the April 2024 meeting of the Board of Directors, a quarterly cash dividend of $0.45 per share ($1.80 on an annualized basis) was declared. It was paid on May 23, 2024 to shareholders of record as of May 9, 2024.

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(18) Subsequent Events

On August 1, 2024, the Company completed its previously announced acquisition of Macatawa Bank Corporation (“Macatawa”), the parent company of Macatawa Bank. In conjunction with the completed acquisition, the Company issued approximately 4.7 million shares of common stock. Macatawa operates 26 full-service branches located throughout communities in Kent, Ottawa and northern Allegan counties in the state of Michigan. Macatawa offers a full range of banking, retail and commercial lending, wealth management and ecommerce services to individuals, businesses and governmental entities. As of June 30, 2024, Macatawa had approximately $2.7 billion in assets, $2.3 billion in deposits and $1.3 billion in loans.

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ITEM 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of the financial condition of Wintrust Financial Corporation and its subsidiaries (collectively, “Wintrust” or the “Company”) as of June 30, 2024 compared with December 31, 2023 and June 30, 2023, and the results of operations for the three and six month periods ended June 30, 2024 and June 30, 2023, should be read in conjunction with the unaudited consolidated financial statements and notes contained in this report and the risk factors discussed under Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (“2023 Form 10-K”) and in Part II, Item 1A, of this Form 10-Q. 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 and offers a full array of wealth management services, primarily to customers in the Chicago metropolitan area, southern Wisconsin and northwest Indiana, and operates other financing businesses on a national basis and in Canada through several non-bank business units.

Overview

Second Quarter Highlights

The Company recorded net income of $152.4 million for the second quarter of 2024 compared to $154.8 million in the second quarter of 2023. The results for the second quarter of 2024 demonstrate increased net interest income primarily due to substantial growth in earning assets as well as the Company’s ability to navigate industry disruptions during the period due to the Company’s strong deposit franchise and balanced business model. This was partially offset by increased provision for credit losses due to loan growth across a majority of segments coupled with losses experienced in the Commercial, Commercial Real Estate and Premium Finance Receivables portfolios. Comprehensive income includes 1) net income as presented on the Company’s Consolidated Statements of Income and 2) other comprehensive income or loss from unrealized gains and losses on the Company’s available-for-sale investment securities portfolios and derivative contracts designated as cash flow hedges as well as foreign currency translation adjustments. Comprehensive income totaled $125.3 million for the second quarter of 2024 compared to $48.1 million for the second quarter of 2023.

The Company increased its loan portfolio from $41.0 billion at June 30, 2023 and $42.1 billion at December 31, 2023 to $44.7 billion at June 30, 2024. The increase in the current period compared to the prior periods was primarily a result of organic growth in several portfolios, including the commercial, commercial real estate, residential real estate loans held for investment portfolios, and property and casualty insurance premium finance receivable portfolios. 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 $470.6 million in the second quarter of 2024 compared to $447.5 million in the second quarter of 2023. This increase in net interest income recorded in the second quarter of 2024 compared to the second quarter of 2023 resulted primarily from growth in earning assets, specifically a $3.7 billion increase in average loans. Net interest margin was 3.50% (3.52% on a fully taxable-equivalent basis, non-GAAP) in the second quarter of 2024 compared to 3.64% (3.66% on a fully taxable-equivalent basis, non-GAAP) in the second quarter of 2023. The decrease is primarily due to higher rates on interest-bearing liabilities, most notably interest-bearing deposits (see “Net Interest Income” for further detail).

Non-interest income totaled $121.1 million in the second quarter of 2024 compared to $113.0 million in the second quarter of 2023. The increase is primarily due to $4.6 million of gains recognized on the sale of premium finance receivables in the second quarter of 2024 and an increase in service charges on deposits of $1.9 million partially off set by decreased mortgage banking revenue of $857,000 in the second quarter of 2024 compared to the second quarter of 2023 (see “Non-Interest Income” for further detail).

Non-interest expense totaled $340.4 million in the second quarter of 2024, an increase of $19.7 million, or 6%, compared to the second quarter of 2023. This increase compared to the second quarter of 2023 was primarily attributable to increased salaries and employee benefits of $13.6 million and increased software and equipment expenses of $3.0 million. (see “Non-Interest Expense” for further detail).

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Management considers the maintenance of adequate liquidity to be important to the management of risk. Accordingly, during the second quarter of 2024, 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. See “Deposits” and “Other Funding Sources” for additional information regarding liquidity sources.

RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures and growth rates for the three and six months ended June 30, 2024, as compared to the same period last year, are shown below:

	Three Months Ended
(Dollars in thousands, except per share data)	June 30, 2024			June 30, 2023			Percentage (%) or Basis Point (bp) Change
Net income	$	152,388		$	154,750		(2)	%
Pre-tax income, excluding provision for credit losses (non-GAAP) (1)	251,404			239,944			5
Net income per common share—Diluted	2.32			2.38			(3)
Net revenue (2)	591,757			560,567			6
Net interest income	470,610			447,537			5
Net interest margin	3.50		%	3.64		%	(14)	bps
Net interest margin - fully taxable-equivalent (non-GAAP) (1)	3.52			3.66			(14)
Net overhead ratio (3)	1.53			1.58			(5)
Return on average assets	1.07			1.18			(11)
Return on average common equity	11.61			12.79			(118)
Return on average tangible common equity (non-GAAP) (1)	13.49			15.12			(163)

	Six months ended
(Dollars in thousands, except per share data)	June 30, 2024			June 30, 2023			Percentage (%) or Basis Point (bp) Change
Net income	$	339,682		$	334,948		1	%
Pre-tax income, excluding provision for credit losses (non-GAAP) (1)	523,033			506,539			3
Net income per common share—Diluted	5.21			5.18			1
Net revenue (2)	1,196,531			1,126,331			6
Net interest income	934,804			905,532			3
Net interest margin	3.53		%	3.72		%	(19)	bps
Net interest margin - fully taxable-equivalent (non-GAAP) (1)	3.56			3.74			(18)
Net overhead ratio (3)	1.46			1.54			(8)
Return on average assets	1.21			1.29			(8)
Return on average common equity	13.01			14.20			(119)
Return on average tangible common equity (non-GAAP) (1)	15.12			16.79			(167)
At end of period
Total assets	$	59,781,516		$	54,286,176		10	%
Total loans, excluding loans held-for-sale	44,675,531			41,023,408			9
Total loans, including loans held-for-sale	45,087,382			41,362,136			9
Total deposits	48,049,026			44,038,707			9
Total shareholders’ equity	5,536,628			5,041,912			10
Book value per common share (1)	$	82.97		$	75.65		10
Tangible common book value per share (1)	72.01			64.50			12
Market price per common share	98.56			72.62			36
Allowance for loan and unfunded lending-related commitment losses to total loans	0.98		%	0.94		%	4	bps

(1)See following section titled “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

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

(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.

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

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SUPPLEMENTAL NON-GAAP FINANCIAL MEASURES/RATIOS

The accounting and reporting policies of the Company 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 book value per common share, return on average tangible common equity and pre-tax income, excluding provision for credit losses. 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 using tax rates effective as of the end of the period. This measure ensures comparability of net interest income arising from both taxable and tax-exempt sources. Net interest income on a fully taxable-equivalent 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. Management considers pre-tax income, excluding provision for credit losses as a useful measurement of the Company’s core net income.

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:

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	Three Months Ended									Six Months Ended
	June 30,			March 31,			June 30,			June 30,			June 30,
(Dollars and shares in thousands)	2024			2024			2023			2024			2023
Reconciliation of Non-GAAP Net Interest Margin and Efficiency Ratio:
(A) Interest Income (GAAP)	$	849,979		$	805,513		$	697,176		$	1,655,492		$	1,336,866
Taxable-equivalent adjustment:
- Loans	2,305			2,246			1,882			4,551			3,754
- Liquidity management assets	567			550			551			1,117			1,102
- Other earning assets	3			5			1			8			5
(B) Interest Income (non-GAAP)	$	852,854		$	808,314		$	699,610		$	1,661,168		$	1,341,727
(C) Interest Expense (GAAP)	379,369			341,319			249,639			720,688			431,334
(D) Net Interest Income (GAAP) (A minus C)	$	470,610		$	464,194		$	447,537		$	934,804		$	905,532
(E) Net Interest Income, fully taxable-equivalent (non-GAAP) (B minus C)	$	473,485		$	466,995		$	449,971		$	940,480		$	910,393
Net interest margin (GAAP)	3.50		%	3.57		%	3.64		%	3.53		%	3.72		%
Net interest margin, fully taxable-equivalent (non-GAAP)	3.52			3.59			3.66			3.56			3.74
(F) Non-interest income	$	121,147		$	140,580		$	113,030		$	261,727		$	220,799
(G) (Losses) gains on investment securities, net	(4,282)			1,326			0			(2,956)			1,398
(H) Non-interest expense	340,353			333,145			320,623			673,498			619,792
Efficiency ratio (H/(D+F-G))	57.10		%	55.21		%	57.20		%	56.15		%	55.10		%
Efficiency ratio (non-GAAP) (H/(E+F-G))	56.83			54.95			56.95			55.88			54.86
Reconciliation of Non-GAAP Tangible Common Equity Ratio:
Total shareholders’ equity (GAAP)	$	5,536,628		$	5,436,400		$	5,041,912
Less: Non-convertible preferred stock (GAAP)	(412,500)			(412,500)			(412,500)
Less: Acquisition-related intangible assets (GAAP)	(676,562)			(677,911)			(682,327)
(I) Total tangible common shareholders’ equity (non-GAAP)	$	4,447,566		$	4,345,989		$	3,947,085
(J) Total assets (GAAP)	$	59,781,516		$	57,576,933		$	54,286,176
Less: Acquisition-related intangible assets (GAAP)	(676,562)			(677,911)			(682,327)
(K) Total tangible assets (non-GAAP)	$	59,104,954		$	56,899,022		$	53,603,849
Common equity to assets ratio (GAAP) (L/J)	8.6		%	8.7		%	8.5		%
Tangible common equity ratio (non-GAAP) (I/K)	7.5			7.6			7.4
Reconciliation of Non-GAAP Tangible Book Value per Common Share:
Total shareholders’ equity	$	5,536,628		$	5,436,400		$	5,041,912
Less: Preferred stock	(412,500)			(412,500)			(412,500)
(L) Total common equity	$	5,124,128		$	5,023,900		$	4,629,412
(M) Actual common shares outstanding	61,760			61,737			61,198
Book value per common share (L/M)	$	82.97		$	81.38		$	75.65
Tangible book value per common share (non-GAAP) (I/M)	72.01			70.40			64.50

Reconciliation of Non-GAAP Return on Average Tangible Common Equity:
(N) Net income applicable to common shares	$	145,397		$	180,303		$	147,759		$	325,700		$	320,966
Add: Acquisition-related intangible asset amortization	1,122			1,158			1,499			2,280			2,734
Less: Tax effect of acquisition-related intangible asset amortization	(311)			(291)			(402)			(602)			(722)
After-tax acquisition-related intangible asset amortization	$	811		$	867		$	1,097		$	1,678		$	2,012
(O) Tangible net income applicable to common shares (non-GAAP)	$	146,208		$	181,170		$	148,856		$	327,378		$	322,978
Total average shareholders’equity	$	5,450,173		$	5,440,457		$	5,044,718		$	5,445,315		$	4,970,407
Less: Average preferred stock	(412,500)			(412,500)			(412,500)			(412,500)			(412,500)
(P) Total average common shareholders’ equity	$	5,037,673		$	5,027,957		$	4,632,218		$	5,032,815		$	4,557,907
Less: Average acquisition-related intangible assets	(677,207)			(678,731)			(682,561)			(677,969)			(678,924)
(Q) Total average tangible common shareholders’ equity (non-GAAP)	$	4,360,466		$	4,349,226		$	3,949,657		$	4,354,846		$	3,878,983
Return on average common equity, annualized (N/P)	11.61		%	14.42		%	12.79		%	13.01		%	14.20		%
Return on average tangible common equity, annualized (non-GAAP) (O/Q)	13.49			16.75			15.12			15.12			16.79

Reconciliation of Non-GAAP Pre-Tax, Pre-Provision Income:
Income before taxes	$	211,343	$	249,956	$	211,430	$	461,299	$	454,980
Add: Provision for credit losses	40,061		21,673		28,514		61,734		51,559
Pre-tax income, excluding provision for credit losses (non-GAAP)	$	251,404	$	271,629	$	239,944	$	523,033	$	506,539

Critical Accounting Estimates

The Company’s Consolidated Financial Statements are prepared in accordance with GAAP in the United States, prevailing practices of the banking industry, and the application of accounting policies of which are described in Note (1) “Summary of Significant Accounting Policies” to the Consolidated Financial Statements in Item 8 of the Company’s 2023 Form 10-K. These policies require numerous estimates and strategic or economic assumptions, which may prove inaccurate or subject to

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variations. Changes in underlying factors, assumptions or estimates could have a material impact on the Company’s future financial condition and results of operations. At June 30, 2024, management views critical accounting estimates to include the determination of the allowance for credit losses, 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. These estimates were reviewed with the Audit Committee of the Board of Directors.

Allowance for Credit Losses, including the Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Allowance for Held-to-Maturity Debt Securities

The allowance for credit losses represents management’s estimate of expected credit losses over the life of a financial asset carried at amortized cost. Determining the amount of the allowance for credit losses is considered a critical accounting estimate because it requires significant judgment and the use of estimates related to the fair value of the underlying collateral and amount and timing of expected future cash flows on individually assessed financial assets, estimated credit losses on pools of loans with similar risk characteristics, and consideration of reasonable and supportable forecasts of macroeconomic conditions, all of which are susceptible to significant change. At June 30, 2024, the loan and held-to-maturity debt securities portfolios represent 81% of the total assets on the Company’s consolidated balance sheet. The Company also maintains an allowance for lending-related commitments, specifically unfunded loan commitments and letters of credit, which relates to certain amounts the Company is committed to lend (not unconditionally cancelable) but for which funds have not yet been disbursed.

Key macroeconomic variable data points that are significant inputs into our credit loss models for the commercial and commercial real estate portfolios are the Baa corporate credit spread as well as CREPI specifically related to the commercial real estate portfolio. Holding all other inputs constant, the table below shows the impact of changes in these key macroeconomic variable data points on the estimate of allowance for credit losses.

	Impact to estimated allowance for credit losses from an increased or higher input value
Baa Credit Spread	Increases
CRE Price Index	Decreases

Holding all other inputs constant, the following table provides a sensitivity analysis for the commercial and commercial real estate portfolios based on a 20 basis point change in Baa credit spreads from the assumption utilized in the estimate of that portfolio’s allowance for credit losses at June 30, 2024:

Baa Credit Spread
	Narrows	Widens
Commercial	Decreases estimate by 10%-15%	Increases estimate by 10%-15%
Commercial Real Estate:
Construction	Decreases estimate by 15%-20%	Increases estimate by 15%-20%
Non-Construction	Decreases estimate by 4%-5%	Increases estimate by 4%-5%

Holding all other inputs constant, the following table provides a sensitivity analysis for the commercial real estate construction and non-construction portfolios based on a 10% change in CREPI from the assumption utilized in the estimate of that portfolio’s allowance for credit losses at June 30, 2024:

CRE Price Index
	Increases	Decreases
Commercial Real Estate:
Construction	Decreases estimate by 45%-50%	Increases estimate by 95%-100%
Non-Construction	Decreases estimate by 25%-30%	Increases estimate by 55%-60%

See Note (7) “Allowance for Credit Losses” to the Consolidated Financial Statements in Item 1 of this report and the section titled “Credit Quality” in Item 2 of this report for a description of the methodology used to determine the allowance for credit losses.

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For a more detailed discussion on these critical accounting estimates, see “Summary of Critical Accounting Estimates” beginning on page 57 of the 2023 Form 10-K.

Net Income

Net income for the quarter ended June 30, 2024 totaled $152.4 million, a decrease of $2.4 million, or 2%, compared to the quarter ended June 30, 2023. On a per share basis, net income for the second quarter of 2024 totaled $2.32 per diluted common share compared to $2.38 for the second quarter of 2023.

The decrease in net income for the second quarter of 2024 as compared to the same period in the prior year is primarily attributable to increased non-interest expense, partially offset by increased net interest income and non-interest income. See “Net Interest Income”, “Non-interest Income”, “Non-interest Expense” and “Credit Quality” for further detail.

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 earning assets, such as loans and securities, and interest expense on the liabilities to fund those assets, including interest-bearing deposits and other borrowings. The amount of net interest income is affected by both changes in the level of interest rates, and the amount and composition of earning assets and interest bearing liabilities.

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Quarter Ended June 30, 2024 compared to the Quarters Ended March 31, 2024 and June 30, 2023

The following table presents a summary of the Company’s average balances, net interest income and related net interest margins, including a calculation on a fully taxable-equivalent basis, for the second quarter of 2024 as compared to the first quarter of 2024 (sequential quarters) and second quarter of 2023 (linked quarters):

	Average Balance for three months ended,						Interest for three months ended,						Yield/Rate for three months ended,
(Dollars in thousands)	Jun 30, 2024		Mar 31, 2024		Jun 30, 2023		Jun 30, 2024		Mar 31, 2024		Jun 30, 2023		Jun 30, 2024		Mar 31, 2024		Jun 30, 2023
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents(1)	$	1,485,481	$	1,254,332	$	1,454,057	$	19,748	$	16,677	$	16,882	5.35	%	5.35	%	4.66	%
Investment securities(2)	8,203,764		8,349,796		7,252,582		70,346		70,228		51,795		3.45		3.38		2.86
FHLB and FRB stock	253,614		230,648		223,813		4,974		4,478		3,544		7.89		7.81		6.35
Liquidity management assets(3)(8)	$	9,942,859	$	9,834,776	$	8,930,452	$	95,068	$	91,383	$	72,221	3.85	%	3.74	%	3.24	%
Other earning assets(3)(4)(8)	15,257		15,081		17,401		235		198		272		6.23		5.25		6.27
Mortgage loans held-for-sale	347,236		290,275		307,683		5,434		4,146		4,178		6.29		5.74		5.45
Loans, net of unearned income(3)(5)(8)	43,819,354		42,129,893		40,106,393		752,117		712,587		622,939		6.90		6.80		6.23
Total earning assets(8)	$	54,124,706	$	52,270,025	$	49,361,929	$	852,854	$	808,314	$	699,610	6.34	%	6.22	%	5.68	%
Allowance for loan and investment security losses	(360,504)		(361,734)		(302,627)
Cash and due from banks	434,916		450,267		481,510
Other assets	3,294,066		3,244,137		3,061,141
Total assets	$	57,493,184	$	55,602,695	$	52,601,953
NOW and interest-bearing demand deposits	$	4,985,306	$	5,680,265	$	5,540,597	$	32,719	$	34,896	$	29,178	2.64	%	2.47	%	2.11	%
Wealth management deposits	1,531,865		1,510,203		1,545,626		10,294		10,461		9,097		2.70		2.79		2.36
Money market accounts	15,272,126		14,474,492		13,735,924		155,100		137,984		106,630		4.08		3.83		3.11
Savings accounts	5,878,844		5,792,118		5,206,609		41,063		39,071		25,603		2.81		2.71		1.97
Time deposits	8,546,172		7,148,456		5,603,024		96,527		77,120		42,987		4.54		4.34		3.08
Interest-bearing deposits	$	36,214,313	$	34,605,534	$	31,631,780	$	335,703	$	299,532	$	213,495	3.73	%	3.48	%	2.71	%
Federal Home Loan Bank advances	3,096,920		2,728,849		2,227,106		24,797		22,048		17,399		3.22		3.25		3.13
Other borrowings	587,262		627,711		625,757		8,700		9,248		8,485		5.96		5.92		5.44
Subordinated notes	410,331		437,893		437,545		5,185		5,487		5,523		5.08		5.04		5.06
Junior subordinated debentures	253,566		253,566		253,566		4,984		5,004		4,737		7.91		7.94		7.49
Total interest-bearing liabilities	$	40,562,392	$	38,653,553	$	35,175,754	$	379,369	$	341,319	$	249,639	3.76	%	3.55	%	2.85	%
Non-interest-bearing deposits	9,879,134		9,972,646		10,908,022
Other liabilities	1,601,485		1,536,039		1,473,459
Equity	5,450,173		5,440,457		5,044,718
Total liabilities and shareholders’ equity	$	57,493,184	$	55,602,695	$	52,601,953
Interest rate spread(6)(8)													2.58	%	2.67	%	2.83	%
Less: Fully taxable-equivalent adjustment							(2,875)		(2,801)		(2,434)		(0.02)		(0.02)		(0.02)
Net free funds/contribution(7)	$	13,562,314	$	13,616,472	$	14,186,175							0.94		0.92		0.83
Net interest income/margin (GAAP)(8)							$	470,610	$	464,194	$	447,537	3.50	%	3.57	%	3.64	%
Fully taxable-equivalent adjustment							2,875		2,801		2,434		0.02		0.02		0.02
Net interest income/margin, fully taxable-equivalent (non-GAAP)(8)							$	473,485	$	466,995	$	449,971	3.52	%	3.59	%	3.66	%

(1)Includes interest-bearing deposits with banks and securities purchased under resale agreements with original maturities of greater than three months. Cash equivalents include federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

(2)Investment securities includes investment securities classified as available-for-sale and held-to-maturity, and equity securities with readily determinable fair values. Equity securities without readily determinable fair values are included within other assets.

(3)Interest income on tax-advantaged loans, trading securities and investment securities reflects a tax-equivalent adjustment based on the marginal federal corporate tax rate in effect as of the applicable period. The total adjustments for the three months ended June 30, 2024, March 31, 2024 and June 30, 2023 were $2.9 million, $2.8 million and $2.4 million, respectively.

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

(5)Loans, net of unearned income, include nonaccrual loans.

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

(7)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.

(8)See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

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For the second quarter of 2024, net interest income totaled $470.6 million, an increase of $6.4 million as compared to the first quarter of 2024, and an increase of $23.1 million as compared to the second quarter of 2023. Net interest margin was 3.50% (3.52% on a FTE basis, non-GAAP) during the second quarter of 2024 compared to 3.57% (3.59% on a FTE basis, non-GAAP) during the first quarter of 2024, and 3.64% (3.66% on a FTE basis, non-GAAP) during the second quarter of 2023.

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 ended June 30, 2024 compared to the six months ended June 30, 2023:

	Average Balance for six months ended,				Interest for six months ended,				Yield/Rate for six months ended,
(Dollars in thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents(1)	$	1,369,906	$	1,345,506	$	36,425	$	30,421	5.35	%	4.56	%
Investment securities (2)	8,276,780		7,602,707		140,574		112,288		3.42		2.98
FHLB and FRB stock	242,131		228,687		9,452		7,224		7.85		6.37
Liquidity management assets (3)(8)	$	9,888,817	$	9,176,900	$	186,451	$	149,933	3.79	%	3.29	%
Other earning assets (3)(4)(8)	15,169		17,920		433		585		5.74		6.58
Mortgage loans held-for-sale	318,756		289,426		9,580		7,706		6.04		5.37
Loans, net of unearned income (3)(5)(8)	42,974,623		39,602,672		1,464,704		1,183,503		6.85		6.03
Total earning assets (8)	$	53,197,365	$	49,086,918	$	1,661,168	$	1,341,727	6.28	%	5.51	%
Allowance for loan and investment security losses	(361,119)		(292,721)
Cash and due from banks	442,591		484,964
Other assets	3,269,102		3,060,929
Total assets	$	56,547,939	$	52,340,090
NOW and interest-bearing demand deposits	$	5,332,786	$	5,406,911	$	67,615	$	47,949	2.55	%	1.79	%
Wealth management deposits	1,521,034		1,854,637		20,755		21,355		2.74		2.32
Money market accounts	14,873,309		13,138,018		293,084		174,907		3.96		2.68
Savings accounts	5,835,481		5,019,505		80,134		41,419		2.76		1.66
Time deposits	7,847,314		5,323,882		173,647		72,667		4.45		2.75
Interest-bearing deposits	$	35,409,924	$	30,742,953	$	635,235	$	358,297	3.61	%	2.35	%
Federal Home Loan Bank advances	2,912,884		2,350,309		46,845		36,534		3.23		3.13
Other borrowings	607,487		614,410		17,948		16,338		5.94		5.36
Subordinated notes	424,112		437,484		10,672		11,011		5.06		5.08
Junior subordinated debentures	253,566		253,566		9,988		9,154		7.92		7.28
Total interest-bearing liabilities	$	39,607,973	$	34,398,722	$	720,688	$	431,334	3.66	%	2.53	%
Non-interest-bearing deposits	9,925,890		11,536,336
Other liabilities	1,568,761		1,434,625
Equity	5,445,315		4,970,407
Total liabilities and shareholders’ equity	$	56,547,939	$	52,340,090
Interest rate spread (6)(8)									2.62	%	2.98	%
Less: Fully taxable-equivalent adjustment					(5,676)		(4,861)		(0.03)		(0.02)
Net free funds/contribution (7)	$	13,589,392	$	14,688,196					0.94		0.76
Net interest income/margin (GAAP) (8)					$	934,804	$	905,532	3.53	%	3.72	%
Fully taxable-equivalent adjustment					5,676		4,861		0.03		0.02
Net interest income/margin, fully taxable-equivalent (non-GAAP) (8)					$	940,480	$	910,393	3.56	%	3.74	%

(1)Includes interest-bearing deposits with banks and securities purchased under resale agreements with original maturities of greater than three months. Cash equivalents include federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

(2)Investment securities includes investment securities classified as available-for-sale and held-to-maturity, and equity securities with readily determinable fair values. Equity securities without readily determinable fair values are included within other assets.

(3)Interest income on tax-advantaged loans, trading securities and investment securities reflects a taxable-equivalent adjustment based on a marginal federal corporate tax rate in effect as of the applicable period. The total adjustments for the six months ended June 30, 2024 and June 30, 2023 were $5.7 million and $4.9 million, respectively.

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

(5)Loans, net of unearned income, include nonaccrual loans.

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

(7)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.

(8)See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance ratio.

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Analysis of Changes in Net Interest Income on a FTE basis (non-GAAP)

The following table presents an analysis of the changes in the Company’s net interest income on a FTE basis (non-GAAP) comparing the three month ended June 30, 2024 to each of the three month periods ended March 31, 2024 and June 30, 2023 and six month periods ended June 30, 2024 and 2023. The reconciliations set forth the changes in the net interest income on a FTE basis (non-GAAP) as a result of changes in volumes, changes in rates and differing number of days in each period:

	Second Quarter of 2024 Compared to First Quarter of 2024		Second Quarter of 2024 Compared to Second Quarter of 2023		First Six Months of 2024 Compared to First Six Months of 2023
(In thousands)
Net interest income, FTE basis (non-GAAP)(1) for comparative period	$	466,995	$	449,971	$	910,393
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)	11,535		27,536		44,321
Change due to interest rate fluctuations (rate)	(5,045)		(4,022)		(19,236)
Change due to number of days in each period	—		—		5,002
Less: FTE adjustment	(2,875)		(2,875)		(5,676)
Net interest income (GAAP)(1) for the period ended June 30, 2024	$	470,610	$	470,610	$	934,804
FTE adjustment	2,875		2,875		5,676
Net interest income, FTE basis (non-GAAP)(1)	$	473,485	$	473,485	$	940,480

(1) See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

Deposit beta

Deposit betas are calculated as the change in the Company's deposit cost divided by the change in the upper limit of the federal funds target range established by the Federal Open Market Committee. Total cycle-to-date (December 31, 2021 to June 30, 2024) deposit beta was 53% as of June 30, 2024 as compared to 38% as of June 30, 2023. Deposit beta increase was driven by competitive deposit pricing to fund quality loan growth.

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, 2024		June 30, 2023
Brokerage	$	5,588	$	4,404	$	1,184	27	%
Trust and asset management	29,825		29,454		371		1
Total wealth management (1)	35,413		33,858		1,555		5
Mortgage banking	29,124		29,981		(857)		(3)
Service charges on deposit accounts	15,546		13,608		1,938		14
(Losses) gains on investment securities, net	(4,282)		0		(4,282)		NM
Fees from covered call options	2,056		2,578		(522)		(20)
Trading gains, net	70		106		(36)		(34)
Operating lease income, net	13,938		12,227		1,711		14
Other:
Interest rate swap fees	3,392		2,711		681		25
BOLI	1,351		1,322		29		2
Administrative services	1,322		1,319		3		0
Foreign currency remeasurement (losses) gains	(145)		543		(688)		NM
Changes in fair value on EBOs and loans held-for-investment	604		(242)		846		NM
Early pay-offs of capital leases	393		201		192		96
Miscellaneous	22,365		14,818		7,547		51
Total Other	29,282		20,672		8,610		42
Total Non-interest Income	$	121,147	$	113,030	$	8,117	7	%

(1)Wealth management revenue is comprised of the trust and asset management revenue of the CTC and Great Lakes Advisors, the brokerage commissions, managed money fees and insurance product commissions at Wintrust Investments and fees from tax-deferred like-kind exchange services provided by CDEC.

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NM—Not Meaningful.

	Six Months Ended				$ Change		% Change
(Dollars in thousands)	June 30, 2024		June 30, 2023
Brokerage	$	11,144	$	8,937	$	2,207	25	%
Trust and asset management	59,084		54,866		4,218		8
Total wealth management (1)	70,228		63,803		6,425		10
Mortgage banking	56,787		48,245		8,542		18
Service charges on deposit accounts	30,357		26,511		3,846		15
(Losses) gains on investment securities, net	(2,956)		1,398		(4,354)		NM
Fees from covered call options	6,903		12,969		(6,066)		(47)
Trading gains, net	747		919		(172)		(19)
Operating lease income, net	28,048		25,273		2,775		11
Other:
Interest rate swap fees	6,220		5,317		903		17
BOLI	3,002		2,673		329		12
Administrative services	2,539		2,934		(395)		(13)
Foreign currency remeasurement (losses) gains	(1,316)		355		(1,671)		NM
Changes in fair value on EBOs and loans held-for-investment	165		303		(138)		(46)
Early pay-offs of capital leases	823		566		257		45
Miscellaneous	60,180		29,533		30,647		NM
Total Other	71,613		41,681		29,932		72
Total Non-interest Income	$	261,727	$	220,799	$	40,928	19	%

(1)Wealth management revenue is comprised of the trust and asset management revenue of the CTC and Great Lakes Advisors, the brokerage commissions, managed money fees and insurance product commissions at Wintrust Investments and fees from tax-deferred like-kind exchange services provided by CDEC.

NM—Not Meaningful.

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

Wealth management revenue increased by $1.6 million and $6.4 million in the three and six months ended June 30, 2024 as compared to the same periods of 2023, respectively. For the three months ended June 30, 2024, the increase is primarily due to increased brokerage income as compared to the same period in 2023. On a year-to-date basis, the increased income is primarily due to increased asset management fees as a result of higher assets under management when compared to same period in the prior year.

Mortgage banking revenue decreased slightly for the three months ended June 30, 2024 as compared to the same period in 2023 due to lower net revenue related to MSR activity and valuation adjustments, partially offset by increased production revenue. On a year-to-date basis, mortgage banking revenue increased for the six months ended June 30, 2024 as compared to the same period in 2023 as a result of higher net revenue related to MSR activity and higher production revenue from increased mortgage production. Mortgage banking revenue includes revenue from activities related to originating, selling and servicing residential real estate loans for the secondary market. A main factor in the mortgage banking revenue recognized by the Company is the volume of mortgage loans originated or purchased for sale. Mortgage loans originated for sale totaled $722.2 million in the second quarter of 2024 as compared to $578.0 million in the second quarter of 2023. On a year-to-date basis, mortgage loans originated for sale totaled $1.2 billion for the six months ended June 30, 2024 as compared to $1.0 billion for the six months ended June 30, 2023. The increase in originations from the comparative three and six month periods was driven by growth in both purchase and refinance originations as housing inventories have improved and interest rates pulled back from peak levels reached in 2023. The percentage of origination volume from refinancing activities was 17% and 20% for the three and six months ended June 30, 2024, as compared to 16% and 18%, for the same periods in 2023, respectively.

The Company records MSRs at fair value on a recurring basis. For the three months ended June 30, 2024, the fair value of the MSRs portfolio increased as retained servicing rights led to capitalization of $8.2 million and a favorable fair value adjustment of $877,000 was recorded, partially offset by a reduction in value of $5.5 million due to payoffs, paydowns and repurchases of the existing portfolio. On a year-to-date basis, the fair value of MSRs increased due to a favorable fair value adjustment of $8.5 million as well as retained servicing rights led to capitalization of $13.6 million, partially offset by a reduction in value of $9.9 million due to payoffs, paydowns and repurchases of the existing portfolio. See Note (9) “Mortgage Servicing Rights

58

(“MSRs”)” to the Consolidated Financial Statements in Item 1 of this report for a summary of the changes in the carrying value of MSRs.

Mortgage banking revenue is also impacted by changes in the fair value of derivative contracts held to economically hedge a portion of the fair value adjustments related to the Company’s MSRs portfolio. The change in fair value of the derivative contracts held as an economic hedge was an unfavorable $772,000 and $3.3 million for the three and six months ended June 30, 2024, respectively.

Service charges on deposits increased for the three and six months ended June 30, 2024 as compared to the same periods in 2023 primarily as a result of increased account analysis services fees. Service charges on deposit accounts include fees charged to deposit customers for various services, including account analysis services, and are based on factors such as the size and type of customer, type of product and number of transactions. The fees are based on a standard schedule of fees and, depending on the nature of the service performed, the service is performed at a point in time or over a period of a month.

The Company recognized net losses on investment securities for the three and six months ended June 30, 2024 of $4.3 million and $3.0 million, respectively. There were no net losses for the three month period ended June 30, 2023. However, there were $1.4 million of net gains for the six month period ended June 30, 2023. The net losses for the three and six months ended June 30, 2024 were primarily due to losses on the Company’s equity investment securities recorded in the second quarter of 2024. See Note (5) “Investment Securities” to the Consolidated Financial Statements in Item 1 of this report for more information on net gains and losses on investment securities.

Fees from covered call options for the three and six months ended June 30, 2024 decreased $522,000 and $6.1 million, respectively, when compared to the same periods in the prior year, respectively. The decreased income was primarily because the Company sold less options than the prior year for both comparative periods. 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. These option transactions are designed to increase the total return associated with holding certain investment securities and do not qualify as hedges pursuant to accounting guidance. There were no outstanding call option contracts at June 30, 2024 and 2023.

Miscellaneous non-interest income includes loan servicing fees, income from other investments, and other fees. This category of income increased $7.5 million and $30.6 million for the three and six months ended June 30, 2024 compared to the same periods in 2023, respectively. For the three months ended June 30, 2024, miscellaneous income increased compared to the same period in 2023 primarily due to a $4.6 million gain recognized in the second quarter of 2024 on the sale of premium finance receivables. The increased income on a year-to-date basis was primarily due to a $20.0 million gain recognized in the first quarter of 2024 related to the sale of the Company’s RBA division within its wealth management business.

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

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2024			June 30, 2023			June 30, 2024			June 30, 2023
Originations:
Retail originations	$	544,394		$	406,888		$	875,898		$	663,025
Veterans First originations	177,792			171,158			321,901			287,362
Total originations for sale (A)	$	722,186		$	578,046		$	1,197,799		$	950,387
Originations for investment	275,331			184,795			444,577			315,975
Total originations	$	997,517		$	762,841		$	1,642,376		$	1,266,362
As percentage of originations for sale:
Retail originations	75		%	70		%	73		%	70		%
Veterans First originations	25			30			27			30
Purchases	83		%	84		%	80		%	82		%
Refinances	17			16			20			18
Production Margin:
Production revenue (B) (1)	$	14,990		$	11,846		$	28,425		$	20,467
Total originations for sale (A)	$	722,186		$	578,046		$	1,197,799		$	950,387
Add: Current period end mandatory interest rate lock commitments to fund originations for sale (2)	222,738			196,246			222,738			196,246
Less: Prior period end mandatory interest rate lock commitments to fund originations for sale (2)	207,775			184,168			119,624			113,303
Total mortgage production volume (C)	$	737,149		$	590,124		$	1,300,913		$	1,033,330
Production margin (B/C)	2.03		%	2.01		%	2.19		%	1.98		%
Mortgage Servicing:
Loans serviced for others (D)	$	12,211,027		$	11,752,223
MSRs, at fair value (E)	204,610			200,692
Percentage of MSRs to loans serviced for others (E/D)	1.68		%	1.71		%
Servicing income	$	10,586		$	11,034		$	21,084		$	23,086
Components of MSR:
MSR - changes in fair value model assumptions	$	877		$	2,715		$	8,472		$	(4,238)
Changes in fair value of derivative contract held as an economic hedge, net	(772)			(726)			(3,349)			220
MSR valuation adjustment, net of changes in fair value of derivative contract held as an economic hedge	$	105		$	1,989		$	5,123		$	(4,018)
MSR - current period capitalization	8,223			8,720			13,602			13,827
MSR - collection of expected cash flow - paydowns	(1,504)			(1,432)			(2,948)			(3,220)
MSR - collection of expected cash flow - payoffs and repurchases	(4,030)			(3,611)			(6,972)			(5,732)
MSR activity	$	2,794		$	5,666		$	8,805		$	857
Summary of Mortgage Banking Revenue:
Production revenue (1)	$	14,990		$	11,846		$	28,425		$	20,467
Servicing income	10,586			11,034			21,084			23,086
MSR activity	2,794			5,666			8,805			857
Changes in fair value on EBO loans guaranteed by U.S. government agencies	642			1,508			(1,548)			3,806
Other revenue	112			(73)			21			29
Total mortgage banking revenue	$	29,124		$	29,981		$	56,787		$	48,245
Changes in fair value on EBOs and loans held-for-investment	$	604		$	(242)		$	165		$	303

(1)Production revenue represents revenue earned from the origination and subsequent sale of mortgages, including gains on loans sold and fees from originations, changes in other related financial instruments carried at fair value, processing and other related activities, and excludes servicing fees, changes in the fair value of servicing rights and changes to the mortgage recourse obligation and other non-production revenue.

(2)Certain volume adjusted for the estimated pull-through rate of the loan, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund.

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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, 2024		June 30, 2023
Salaries and employee benefits:
Salaries	$	113,860	$	107,671	$	6,189	6	%
Commissions and incentive compensation	52,151		44,511		7,640		17
Benefits	32,530		32,741		(211)		(1)
Total salaries and employee benefits	198,541		184,923		13,618		7
Software and equipment	29,231		26,205		3,026		12
Operating lease equipment	10,834		9,816		1,018		10
Occupancy, net	19,585		19,176		409		2
Data processing	9,503		9,726		(223)		(2)
Advertising and marketing	17,436		17,794		(358)		(2)
Professional fees	9,967		8,940		1,027		11
Amortization of other acquisition-related intangible assets	1,122		1,499		(377)		(25)
FDIC insurance	10,429		9,008		1,421		16
FDIC insurance - special assessment	—		—		—		NM
OREO expense, net	(259)		118		(377)		NM
Other:
Lending expenses, net of deferred originations costs	5,335		7,890		(2,555)		(32)
Travel and entertainment	5,340		5,401		(61)		(1)
Miscellaneous	23,289		20,127		3,162		16
Total other	33,964		33,418		546		2
Total Non-interest Expense	$	340,353	$	320,623	$	19,730	6	%

	Six Months Ended				$ Change		% Change
(Dollars in thousands)	June 30, 2024		June 30, 2023
Salaries and employee benefits:
Salaries	$	226,032	$	216,025	$	10,007	5	%
Commissions and incentive compensation	103,152		84,310		18,842		22
Benefits	64,530		61,369		3,161		5
Total salaries and employee benefits	393,714		361,704		32,010		9
Software and equipment	56,962		50,902		6,060		12
Operating lease equipment	21,517		19,649		1,868		10
Occupancy, net	38,671		37,662		1,009		3
Data processing	18,795		19,135		(340)		(2)
Advertising and marketing	30,476		29,740		736		2
Professional fees	19,520		17,103		2,417		14
Amortization of other acquisition-related intangible assets	2,280		2,734		(454)		(17)
FDIC insurance	19,810		17,677		2,133		12
FDIC insurance - special assessment	5,156		—		5,156		NM
OREO expense, net	133		(89)		222		NM
Other:
Lending expenses, net of deferred originations costs	10,413		10,989		(576)		(5)
Travel and entertainment	9,937		9,991		(54)		(1)
Miscellaneous	46,114		42,595		3,519		8
Total other	66,464		63,575		2,889		5
Total Non-interest Expense	$	673,498	$	619,792	$	53,706	9	%

NM - Not meaningful.

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

Salaries and employee benefits expense increased for the three and six months ended June 30, 2024 as compared to the same periods in 2023. The increase was primarily due to elevated commissions from increased mortgage production as well as higher salaries due the Company’s annual merit increase. Additionally, the increase is also due to commissions related to the sale of the Company’s RBA division within its wealth management business in the first quarter of 2024.

Software and equipment expense increased for the three and six months ended June 30, 2024 as compared to the same periods in 2023 as a result of higher software license fees as well as higher computer and software depreciation expense as the Company invests in enhancements to the digital customer experience, upgrades to infrastructure and enhancements to information security capabilities.

FDIC insurance expense increased for the three and six months ended June 30, 2024 compared to the same periods in 2023. On a year-to-date basis, the increase is primarily due to the Company’s recognition of approximately $5.2 million accrued in the first quarter of 2024 as a result of the FDIC special assessment on uninsured deposits in response to certain bank failures that occurred in 2023 as compared to the six months ended June 30, 2023. For the three months ended June 30, 2024, the increased expense is primarily due to deposit and asset growth as compared to the three months ended June 30, 2023.

Miscellaneous expense includes ATM expenses, correspondent bank charges, directors’ fees, telephone, postage, corporate insurance, dues and subscriptions, problem loan expenses and other miscellaneous operational losses and costs.

Income Taxes

The Company recorded income tax expense of $59.0 million in the second quarter of 2024 compared to $56.7 million in the second quarter of 2023. The effective tax rates were 27.90% in the second quarter of 2024 compared to 26.81% in the second quarter of 2023. During the first six months of 2024, the Company recorded income tax expense of $121.6 million compared to $120.0 million for the first six months of 2023. The effective tax rates were 26.36% for the first six months of 2024 and 26.38% for the first six months of 2023.

The effective tax rates were partially impacted by the tax effects related to share-based compensation which fluctuate based on the Company’s stock price and timing of employee stock option exercises and vesting of other shared-based awards. The Company recorded net excess tax benefits of $4.4 million in the first six months of 2024, compared to net excess tax benefits of $2.8 million in the first six months of 2023 related to share-based compensation, most of which was recorded in the first quarter for each year.

Operating Segment Results

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management. Refer to Note (13) “Segment Information” to the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s primary segments. 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.

The community banking segment’s net interest income for the quarter ended June 30, 2024 totaled $358.8 million as compared to $346.2 million for the same period in 2023, an increase of $12.6 million, or 4%. On a year-to-date basis, net interest income for the segment increased by $6.4 million from $716.1 million for the six months ended June 30, 2023 to $722.5 million for the six months ended June 30, 2024. The increase in the three and six month period was primarily attributable to increased interest and fees on loans. The community banking segment’s non-interest income totaled $71.6 million in the second quarter of 2024, an increase of $3.5 million, or 5%, when compared to the second quarter of 2023 total of $68.1 million. On a year-to-date basis, non-interest income totaled $146.3 million for the six months ended June 30, 2024, an increase of $9.4 million, or 7%, compared to $136.9 million for the six months ended June 30, 2023. The increase in the six month period was primarily the result of increased mortgage banking revenue due to the increase in the fair value of MSRs related to the changes in fair value model assumptions. The community banking segment recorded provision for credit losses of $36.3 million and $56.7 million, respectively, for the three and six months ended June 30, 2023, compared to $26.7 million and $47.8 million, respectively, for the same periods in 2023. The increase in provision for credit losses for the three and six month period was primarily the result of loan growth coupled with losses experienced in the Commercial and Commercial Real Estate portfolios. The community banking segment’s net income for the quarter ended June 30, 2024 totaled $91.2 million, a decrease of $11.3 million as compared to net income in the second quarter of 2023 of $102.5 million. On a year-to-date basis, the net income of the community banking segment for the six months ended June 30, 2024 totaled $211.3 million as compared to $236.7 million for the six months ended June 30, 2023.

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The specialty finance segment’s net interest income totaled $95.2 million for the quarter ended June 30, 2024, compared to $85.0 million for the same period in 2023, an increase of $10.2 million, or 12%. On a year-to-date basis, net interest income for the segment increased $22.1 million, or 14% compared to the same period in 2023. The increase for the three and six month period was primarily due to loan growth and increased interest rates on the premium finance receivables portfolios. The specialty finance segment’s non-interest income increased to $32.3 million from $31.7 million for the three months ended June 30, 2024 and 2023, respectively, and stood at $59.6 million and $57.5 million for the six months ended June 30, 2024 and 2023, respectively. Our property and casualty insurance premium finance operations, life insurance finance operations, lease financing operations and accounts receivable finance operations accounted for 45%, 35%, 2% and 18%, respectively, of the total revenues of our specialty finance business for the six month period ended June 30, 2024. The net income of the specialty finance segment for the quarter ended June 30, 2024 totaled $53.1 million as compared to $46.4 million for the quarter ended June 30, 2023. On a year-to-date basis, the net income of the specialty finance segment for the six months ended June 30, 2024 totaled $95.6 million as compared to $83.1 million for the six months ended June 30, 2023.

The wealth management segment reported net interest income of $7.9 million for the second quarter of 2024 compared to $7.4 million in the same quarter of 2023, an increase of $524,000, or 7%. On a year-to-date basis, net interest income totaled $15.7 million for the first six months of 2024, as compared to $16.4 million for the first six months of 2023. 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 $1.5 billion and $1.9 billion in the first six months of 2024 and 2023, respectively. This segment recorded non-interest income of $35.6 million for the second quarter of 2024 compared to $33.4 million for the second quarter of 2023. On a year-to-date basis, this segment recorded non-interest income of $94.1 million for the first six months of 2024 as compared to $63.7 million for the first six months of 2023. The increase was primarily due to a $20.0 million gain recognized in the first quarter of 2024 related to the sale of the Company’s RBA division within the wealth management business. Distribution of wealth management services through each bank continues to be a focus of the Company. 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 $8.1 million for the second quarter of 2024 compared to $5.8 million for the second quarter of 2023. On a year-to-date basis, the wealth management segment’s net income totaled $32.8 million and $15.1 million for the six month period ended June 30, 2024 and 2023, respectively.

Financial Condition

Total assets were $59.8 billion at June 30, 2024, representing an increase of $5.5 billion, or 10%, when compared to June 30, 2023 and an increase of approximately $2.2 billion, or 15% on an annualized basis, when compared to March 31, 2024. Total funding, which includes deposits, all notes and advances, including secured borrowings and the junior subordinated debentures, was $52.4 billion at June 30, 2024, $50.4 billion at March 31, 2024, and $47.4 billion at June 30, 2023. See Notes (5), (6), (10), (11) and (12) 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, 2024				March 31, 2024				June 30, 2023
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Mortgage loans held-for-sale	$	347,236	1	%	$	290,275	1	%	$	307,683	1	%
Loans, net of unearned income
Commercial	$	13,729,524	25	%	$	12,903,752	25	%	$	12,616,682	26	%
Commercial real estate	11,810,525		22		11,507,050		22		10,438,593		21
Home equity	348,306		1		343,861		1		338,388		1
Residential real estate	2,893,829		5		2,730,938		5		2,453,384		5
Premium finance receivables	14,956,258		28		14,564,075		28		14,181,414		29
Other loans	80,912		0		80,217		0		77,932		0
Total average loans (1)	$	43,819,354	81	%	$	42,129,893	81	%	$	40,106,393	82	%
Liquidity management assets (2)	9,942,859		18		9,834,776		18		8,930,452		17
Other earning assets (3)	15,257		0		15,081		0		17,401		0
Total average earning assets	$	54,124,706	100	%	$	52,270,025	100	%	$	49,361,929	100	%
Total average assets	$	57,493,184			$	55,602,695			$	52,601,953
Total average earning assets to total average assets			94	%			94	%			94	%

(1)Total average loans includes nonaccrual loans.

(2)Liquidity management assets include investment securities, other securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.

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

Mortgage loans held-for-sale. Mortgage loans held-for-sale represents such loans awaiting subsequent sale in the secondary market with such sales eliminating the interest-rate risk associated with these loans, as they are predominantly long-term fixed rate loans, and provide a source of non-interest revenue. The increase in average balance for the second quarter of 2024 as compared to the sequential and prior year periods is primarily due to higher mortgage origination production.

Loans, net of unearned income. Growth realized in the combined commercial and commercial real estate loan categories for the second quarter of 2024 as compared to the sequential and prior year periods is primarily attributable to increased business development efforts. The aggregate balances of these loan categories comprised 58%, 58% and 57% of the average loan portfolio in the second quarter of 2024, first quarter of 2024 and second quarter of 2023, respectively.

Residential real estate loans averaged $2.9 billion in the second quarter of 2024, and increased $440.4 million, or 18% from the average balance of $2.5 billion in the same period of 2023. Additionally, compared to the quarter ended March 31, 2024, the average balance increased $162.9 million, or 24% on an annualized basis. Growth is due to the Company continuing to allocate a portion of its mortgage production for investment instead of for subsequent sale and servicing in the secondary market.

The increase in the premium finance receivables during the second quarter of 2024 compared to the second quarter of 2023 was the result of continued originations within the portfolio due to hardening insurance market conditions driving a higher average size of new property and casualty insurance premium finance receivables as well as effective marketing and customer servicing. The increase was in spite of a loan sale transaction of approximately $742 million of property and casualty insurance premium finance receivables during the second quarter of 2024. Approximately $5.5 billion of premium finance receivables were originated in the second quarter of 2024 compared to $5.0 billion during the same period of 2023. Premium finance receivables consist of a property and casualty portfolio and a life portfolio comprising approximately 47% and 53%, respectively, of the average total balance of premium finance receivables for the second quarter of 2024, and 43% and 57%, respectively, for the second quarter of 2023.

Other loans represent a wide variety of personal and consumer loans to individuals. Consumer loans generally have shorter terms and higher interest rates than mortgage loans but generally involve more credit risk due to the type and nature of the collateral.

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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. The Company will continue to prudently evaluate and utilize liquidity sources as needed, including the management of availability with the FHLB and FRB and utilization of the revolving credit facility with unaffiliated banks.

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, 2024				June 30, 2023
(Dollars in thousands)	Balance		Percent		Balance		Percent
Mortgage loans held-for-sale	$	318,756	1	%	$	289,426	1	%
Loans:
Commercial	$	13,316,638	25	%	$	12,509,664	25	%
Commercial real estate	11,658,787		22		10,292,260		21
Home equity	346,083		1		335,806		1
Residential real estate	2,812,384		5		2,395,111		5
Premium finance receivables	14,760,166		28		13,997,512		29
Other loans	80,565		0		72,319		0
Total average loans(1)	$	42,974,623	81	%	$	39,602,672	81	%
Liquidity management assets (2)	9,888,817		18		9,176,900		18
Other earning assets (3)	15,169		0		17,920		0
Total average earning assets	$	53,197,365	100	%	$	49,086,918	100	%
Total average assets	$	56,547,939			$	52,340,090
Total average earning assets to total average assets			94	%			94	%

(1)Total average loans includes nonaccrual loans.

(2)Liquidity management assets include investment securities, other securities, interest earning deposits with banks, federal funds sold and securities purchased under resale agreements.

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

Maturities and Sensitivities of Loans to Changes in Interest Rates

The following table classifies the loan portfolio at June 30, 2024 by date at which the loans reprice or mature, and the type of rate exposure:

As of June 30, 2024	One year or less		From one to five years		From five to fifteen years		After fifteen years
(In thousands)									Total
Commercial
Fixed rate	$	477,277	$	3,103,539	$	1,833,528	$	42,066	$	5,456,410
Variable rate	8,696,826		1,226		—		—		8,698,052
Total commercial	$	9,174,103	$	3,104,765	$	1,833,528	$	42,066	$	14,154,462
Commercial real estate
Fixed rate	$	528,051	$	2,517,267	$	352,478	$	55,075	$	3,452,871
Variable rate	8,480,512		13,745		69		—		8,494,326
Total commercial real estate	$	9,008,563	$	2,531,012	$	352,547	$	55,075	$	11,947,197
Home equity
Fixed rate	$	9,862	$	3,413	$	—	$	24	$	13,299
Variable rate	343,014		—		—		—		343,014
Total home equity	$	352,876	$	3,413	$	—	$	24	$	356,313
Residential real estate
Fixed rate	$	20,300	$	3,124	$	29,630	$	1,036,012	$	1,089,066
Variable rate	77,249		385,872		1,515,148		—		1,978,269
Total residential real estate	$	97,549	$	388,996	$	1,544,778	$	1,036,012	$	3,067,335
Premium finance receivables - property & casualty
Fixed rate	$	7,015,748	$	85,005	$	—	$	—	$	7,100,753
Variable rate	—		—		—		—		—

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Total premium finance receivables - property & casualty	$	7,015,748	$	85,005	$	—	$	—	$	7,100,753
Premium finance receivables - life insurance
Fixed rate	$	71,207	$	543,433	$	4,000	$	6,991	$	625,631
Variable rate	7,336,484		—		—		—		7,336,484
Total premium finance receivables - life insurance	$	7,407,691	$	543,433	$	4,000	$	6,991	$	7,962,115
Consumer and other
Fixed rate	$	33,887	$	5,452	$	9	$	455	$	39,803
Variable rate	47,553		—		—		—		47,553
Total consumer and other	$	81,440	$	5,452	$	9	$	455	$	87,356
Total per category
Fixed rate	$	8,156,332	$	6,261,233	$	2,219,645	$	1,140,623	$	17,777,833
Variable rate	24,981,638		400,843		1,515,217		—		26,897,698
Total loans, net of unearned income	$	33,137,970	$	6,662,076	$	3,734,862	$	1,140,623	$	44,675,531
Variable Rate Loan Pricing by Index:
SOFR tenors									$	15,744,528
One- year CMT									6,176,495
Prime									3,474,480
Fed Funds									997,252
Ameribor tenors									241,682
Other U.S. Treasury tenors									124,349
Other									138,912
Total variable rate									$	26,897,698

SOFR - Secured Overnight Financing Rate.

CMT - Constant Maturity Treasury Rate.

Ameribor - American Interbank Offered Rate.

CREDIT QUALITY

Commercial and Commercial Real Estate Loan Portfolios

Our commercial and commercial real estate loan portfolios are comprised primarily of lines of credit for working capital purposes and commercial real estate loans. The table below sets forth information regarding the types and amounts of our loans within these portfolios as of June 30, 2024 and 2023:

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	As of June 30, 2024						As of June 30, 2023
					Allowance						Allowance
			% of		For Credit				% of		For Credit
			Total		Losses				Total		Losses
(Dollars in thousands)	Balance		Balance		Allocation		Balance		Balance		Allocation
Commercial:
Commercial, industrial, and other	$	14,154,462	54.2	%	$	181,991	$	12,600,471	54.3	%	$	143,142
Commercial Real Estate:
Construction and development	$	2,260,551	8.7	%	$	93,154	$	1,760,436	7.6	%	$	86,725
Non-construction	9,686,646		37.1		130,574		8,848,375		38.1		128,971
Total commercial real estate	$	11,947,197	45.8	%	$	223,728	$	10,608,811	45.7	%	$	215,696
Total commercial and commercial real estate	$	26,101,659	100.0	%	$	405,719	$	23,209,282	100.0	%	$	358,838
Commercial real estate - collateral location by state:
Illinois	$	7,016,665	58.7	%			$	6,751,865	63.6	%
Wisconsin	869,574		7.3				861,564		8.1
Total primary markets	$	7,886,239	66.0	%			$	7,613,429	71.7	%
Florida	395,168		3.3				270,412		2.5
Indiana	391,477		3.3				348,239		3.3
Tennessee	282,113		2.4				133,852		1.3
Michigan	269,745		2.3				152,956		1.4
Texas	263,036		2.2				199,896		1.9
Colorado	258,438		2.2				258,092		2.4
Other	2,200,981		18.3				1,631,935		15.5
Total commercial real estate	$	11,947,197	100.0	%			$	10,608,811	100.0	%

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. Such loans may vary in size based on customer need. Primarily as a result of growth in the Company’s commercial loan portfolio our allowance for credit losses in our commercial loan portfolio increased to $182.0 million as of June 30, 2024 compared to $143.1 million as of June 30, 2023.

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, 66.0% of our commercial real estate loan portfolio is located in this region as of June 30, 2024. We have been able to effectively manage our total non-performing commercial real estate loans, aided by our credit management process. As of June 30, 2024, our allowance for credit losses related to this portfolio was $223.7 million compared to $215.7 million as of June 30, 2023. The increase in the allowance for credit losses is primarily a result of growth in our commercial real estate portfolio as well as a deteriorated forecast in the CREPI macroeconomic variable. The table below sets forth the commercial real estate loans by property type and owner vs. non-owner occupied.

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(In thousands)	June 30, 2024										June 30, 2023
Commercial Real Estate:	Owner Occupied		Non-Owner Occupied		Total		% of Total		Average Size of Loan		Owner Occupied		Non-Owner Occupied		Total		% of Total		Average Size of Loan
Residential construction	$	3,319	$	51,700	$	55,019	1	%	$	1,038	$	3,277	$	48,412	$	51,689	1	%	$	861
Commercial construction	163,287		1,703,414		1,866,701		16		4,549		62,525		1,347,226		1,409,751		13		4,293
Land	6,856		331,975		338,831		3		2,041		10,505		288,491		298,996		3		1,699
Office	267,188		1,318,124		1,585,312		13		1,516		276,027		1,128,395		1,404,422		13		1,329
Industrial	858,781		1,448,674		2,307,455		19		1,748		826,481		1,176,259		2,002,740		19		1,510
Retail	315,027		1,050,726		1,365,753		11		1,219		318,419		985,664		1,304,083		12		1,160
Multi-family	106,762		2,882,178		2,988,940		25		1,275		114,732		2,581,746		2,696,478		25		1,133
Mixed use and other	455,304		983,882		1,439,186		12		1,128		464,225		976,427		1,440,652		14		1,141
Total commercial real estate	$	2,176,524	$	9,770,673	$	11,947,197	100	%	$	1,545	$	2,076,191	$	8,532,620	$	10,608,811	100	%	$	1,376

The Company also participates in mortgage warehouse lending, which is included above within commercial, industrial and other, 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.

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 assigns 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. Description of the Company’s credit risk rating structure used is included in Item 7 - Management’s Discussion and Analysis of Financial Condition and Results of Operations of the 2023 Form 10-K.

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 individually assessed for measuring the allowance for credit losses and, if necessary, a reserve is established. In determining the appropriate reserve for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

Loan Portfolio Aging

As of June 30, 2024, excluding early buy-out loans guaranteed by U.S. government agencies, $59.4 million, or 0.1% of all loans, were 60 to 89 days (or two payments) past due and $139.8 million, or 0.3% of all loans, were 30 to 59 days (or one payment) past due. As of March 31, 2024, excluding early buy-out loans guaranteed by U.S. government agencies, $94.9 million, or 0.2% of all loans, were 60 to 89 days (or two payments) past due and $296.9 million, or 0.7% of all loans, 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, 2024 that were current with regard to the contractual terms of the loan agreement represent 99.3% of the total home equity portfolio. Residential real estate loans, excluding early buy-out loans guaranteed by U.S. government agencies, at June 30, 2024 that were current with regards to the contractual terms of the loan agreements comprise 99.3% of total residential real estate loans outstanding. For more information regarding delinquent loans as of June 30, 2024, see Note (7) “Allowance for Credit Losses” in Item 1 of this report.

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Non-performing Assets (1)

The following table sets forth the Company's non-performing assets performing under the contractual terms of the loan agreement as of the dates shown.

(Dollars in thousands)	June 30, 2024			March 31, 2024			June 30, 2023
Loans past due greater than 90 days and still accruing:
Commercial	$	304		$	27		$	573
Commercial real estate	—			—			—
Home equity	—			—			110
Residential real estate	—			—			—
Premium finance receivables—property and casualty	22,427			25,877			12,785
Premium finance receivables—life insurance	—			—			1,667
Consumer and other	121			47			28
Total loans past due greater than 90 days and still accruing	22,852			25,951			15,163
Nonaccrual loans:
Commercial	51,087			31,740			40,460
Commercial real estate	48,289			39,262			18,483
Home equity	1,100			838			1,361
Residential real estate	18,198			17,901			13,652
Premium finance receivables—property and casualty	32,722			32,648			19,583
Premium finance receivables—life insurance	—			—			6
Consumer and other	3			19			4
Total nonaccrual loans	151,399			122,408			93,549
Total non-performing loans:
Commercial	51,391			31,767			41,033
Commercial real estate	48,289			39,262			18,483
Home equity	1,100			838			1,471
Residential real estate	18,198			17,901			13,652
Premium finance receivables—property and casualty	55,149			58,525			32,368
Premium finance receivables—life insurance	—			—			1,673
Consumer and other	124			66			32
Total non-performing loans	$	174,251		$	148,359		$	108,712
Other real estate owned	19,731			14,538			11,586
Total non-performing assets	193,982			$	162,897		$	120,298
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial	0.36		%	0.24		%	0.33		%
Commercial real estate	0.40			0.34			0.17
Home equity	0.31			0.25			0.44
Residential real estate	0.59			0.62			0.52
Premium finance receivables—property and casualty	0.78			0.84			0.48
Premium finance receivables—life insurance	—			—			0.02
Consumer and other	0.14			0.13			0.10
Total non-performing loans	0.39		%	0.34		%	0.26		%
Total non-performing assets, as a percentage of total assets	0.32		%	0.28		%	0.22		%
Total nonaccrual loans as a percentage of total loans	0.34		%	0.28		%	0.23		%
Allowance for credit losses as a percentage of nonaccrual loans	288.69		%	348.98		%	414.09		%

(1)Excludes early buy-out loans guaranteed by U.S. government agencies. Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

At this time, management believes reserves are appropriate to absorb losses that are expected upon the ultimate resolution of these credits. Significant increases may occur in subsequent periods due to ongoing macroeconomic uncertainty and related impacts on borrowers. Management will continue to actively review and monitor its loan portfolios, in an effort to identify problem credits in a timely manner.

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Non-performing Loans Rollforward, excluding early buy-out loans guaranteed by U.S. government agencies

The table below presents a summary of non-performing loans for the periods presented:     

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
(In thousands)	2024		2023		2024		2023
Balance at beginning of period	$	148,359	$	100,690	$	139,030	$	100,697
Additions from becoming non-performing in the respective period	54,376		21,246		77,518		45,701
Return to performing status	(912)		(360)		(1,402)		(840)
Payments received	(9,611)		(12,314)		(17,947)		(17,575)
Transfer to OREO and other repossessed assets	(6,945)		(2,958)		(8,326)		(2,958)
Charge-offs	(7,673)		(2,696)		(22,483)		(3,855)
Net change for premium finance receivables	(3,343)		5,104		7,861		(12,458)
Balance at end of period	$	174,251	$	108,712	$	174,251	$	108,712

Allowance for Credit Losses

The allowance for credit losses, specifically the allowance for loans losses and the allowance for unfunded commitment losses, represents management’s estimate of lifetime expected credit losses in the loan portfolio. The allowance for credit losses is determined quarterly using a methodology that incorporates important risk characteristics of each loan. A description of how the Company determines the allowance for credit losses is included in Item 7 - Management’s Discussion and Analysis of Financial Condition and Results of Operations of the 2023 Form 10-K.

Management determined that the allowance for credit losses was appropriate at June 30, 2024, 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, when considered applicable. 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 and overall levels of net charge-off. 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

The following table summarizes the activity in our allowance for credit losses, specifically related to loans and unfunded lending-related commitments, during the periods indicated.

 

	Three Months Ended						Six Months Ended
(Dollars in thousands)	June 30, 2024			June 30, 2023			June 30, 2024			June 30, 2023
Allowance for credit losses at beginning of period	$	427,175		$	375,798		$	427,265		$	357,448
Cumulative effect adjustment from the adoption of ASU 2022-02	—			—			—			741
Provision for credit losses	39,899			28,571			61,590			51,641
Other adjustments	(19)			41			(50)			45
Charge-offs:
Commercial	9,584			5,629			20,799			8,172
Commercial real estate	15,526			8,124			20,995			8,129
Home equity	—			—			74			—
Residential real estate	23			—			61			—
Premium finance receivables - property & casualty	9,486			4,519			16,424			9,148
Premium finance receivables - life insurance	—			134			—			155
Consumer and other	137			110			244			263
Total charge-offs	34,756			18,516			58,597			25,867
Recoveries:
Commercial	950			505			1,429			897
Commercial real estate	90			25			121			125
Home equity	35			37			64			72
Residential real estate	8			6			10			10
Premium finance receivables - property & casualty	3,658			890			5,177			2,204
Premium finance receivables - life insurance	5			—			13			9
Consumer and other	24			23			47			55
Total recoveries	4,770			1,486			6,861			3,372
Net charge-offs	(29,986)			(17,030)			(51,736)			(22,495)
Allowance for credit losses at period end	$	437,069		$	387,380		$	437,069		$	387,380
Annualized net charge-offs (recoveries) by category as a percentage of its own respective category’s average:
Commercial	0.25		%	0.16		%	0.29		%	0.12		%
Commercial real estate	0.53			0.31			0.36			0.16
Home equity	(0.04)			(0.04)			0.01			(0.04)
Residential real estate	0.00			(0.00)			0.00			(0.00)
Premium finance receivables - property & casualty	0.33			0.24			0.33			0.24
Premium finance receivables - life insurance	(0.00)			0.01			0.00			0.00
Consumer and other	0.56			0.45			0.49			0.58
Total loans, net of unearned income	0.28		%	0.17		%	0.24		%	0.11		%
Loans at period-end	$	44,675,531		$	41,023,408
Allowance for loan losses as a percentage of loans at period end	0.81		%	0.74		%
Allowance for loan and unfunded loan-related commitment losses as a percentage of loans at period end	0.98			0.94

See Note (7) “Allowance for Credit Losses” of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of activity within the allowance for credit losses during the period and the relationship with respective loan balances for each loan category and the total loan portfolio.

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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 and show the activity for the respective periods and the balance for each property type:

	Three Months Ended				Six Months Ended
(In thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Balance at beginning of period	$	14,538	$	9,361	$	13,309	$	9,900
Disposal/resolved	(1,752)		(733)		(1,752)		(1,168)
Transfers in at fair value, less costs to sell	6,945		2,958		8,381		2,958
Fair value adjustments	—		—		(207)		(104)
Balance at end of period	$	19,731	$	11,586	$	19,731	$	11,586

 

	Period End
(In thousands)	June 30, 2024		March 31, 2024		June 30, 2023
Residential real estate	$	161	$	1,146	$	318
Commercial real estate	19,570		13,392		11,268
Total	$	19,731	$	14,538	$	11,586

Deposits

Total deposits at June 30, 2024 were $48.0 billion, an increase of $4.0 billion, or 9%, compared to total deposits at June 30, 2023. See Note (10) “Deposits” 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, 2024:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of June 30, 2024 (Dollars in thousands)	Total Time Certificates of Deposits		Weighted-Average Rate of Maturing Time Certificates of Deposit
1-3 months	$	2,680,761	4.75	%
4-6 months	2,863,328		4.74
7-9 months	2,309,917		4.36
10-12 months	1,073,537		4.25
13-18 months	215,181		3.50
19-24 months	67,172		2.52
24+ months	60,874		1.90
Total	$	9,270,770	4.53	%

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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, 2024				March 31, 2024				June 30, 2023
(Dollars in thousands)	Balance		Percent		Balance		Percent		Balance		Percent
Non-interest-bearing	$	9,879,134	21	%	$	9,972,646	22	%	$	10,908,022	26	%
NOW and interest-bearing demand deposits	4,985,306		11		5,680,265		13		5,540,597		13
Wealth management deposits	1,531,865		3		1,510,203		3		1,545,626		4
Money market	15,272,126		33		14,474,492		33		13,735,924		32
Savings	5,878,844		13		5,792,118		13		5,206,609		12
Time certificates of deposit	8,546,172		19		7,148,456		16		5,603,024		13
Total average deposits	$	46,093,447	100	%	$	44,578,180	100	%	$	42,539,802	100	%

Total average deposits for the second quarter of 2024 were $46.1 billion, an increase of $3.6 billion, or 8%, from the second quarter of 2023. Total deposits increased in the second quarter as the Company increased marketing efforts to retain and attract deposits to support continued loan growth. Additionally, the diversity of our deposit base showed its resilience in a volatile market. The Company has experienced a change in the mix of deposits as non-interest bearing deposits have migrated to interest-bearing products.

Wealth management deposits are funds from the brokerage customers of Wintrust Investments, CDEC and trust and asset management customers of the Company 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)	2024			2023			2023			2022			2021
Total deposits	$	48,049,026		$	44,038,707		$	45,397,170		$	42,902,544		$	42,095,585
Brokered deposits	4,938,217			4,086,222			4,216,718			3,174,093			1,591,083
Brokered deposits as a percentage of total deposits	10.3		%	9.3		%	9.3		%	7.4		%	3.8		%

Brokered deposits include certificates of deposit obtained through deposit brokers, deposits received through the Certificate of Deposit Account Registry Program, and certain 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 FHLB advances, notes payable, short-term borrowings, secured borrowings, subordinated debt 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,
(In thousands)	2024		2024		2023
FHLB advances	$	3,096,920	$	2,728,849	$	2,227,106
Other borrowings:
Notes payable	163,920		171,049		192,591
Short-term borrowings	799		24,396		20,691
Secured borrowings	364,207		373,403		352,064
Other	58,336		58,863		60,411
Total other borrowings	$	587,262	$	627,711	$	625,757
Subordinated notes	410,331		437,893		437,545
Junior subordinated debentures	253,566		253,566		253,566
Total other funding sources	$	4,348,079	$	4,048,019	$	3,543,974

See Note (11) “FHLB Advances, Other Borrowings and Subordinated Notes” and Note (12) “Junior Subordinated Debentures” 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. The Company hereby incorporates by reference Note (11) and Note (12) of the Consolidated Financial Statements presented under Item 1 of this report in its entirety.

Shareholders’ Equity

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

	June 30, 2024		March 31, 2024		June 30, 2023
Tier 1 leverage ratio	9.3	%	9.4	%	9.3	%
Risk-based capital ratios:
Tier 1 capital ratio	10.3		10.3		10.1
Common equity tier 1 capital ratio	9.5		9.5		9.3
Total capital ratio	12.1		12.2		12.0
Other ratio:
Total average equity-to-total average assets(1)	9.5		9.8		9.6

(1)Based on quarterly average balances.

	Minimum Capital Requirements		Minimum Ratio + Capital Conservation Buffer(1)	Minimum Well Capitalized(2)
Tier 1 leverage ratio	4.0	%	N/A	N/A
Risk-based capital ratios:
Tier 1 capital ratio	6.0		8.5	6.0
Common equity tier 1 capital ratio	4.5		7.0	N/A
Total capital ratio	8.0		10.5	10.0

(1)Reflects the Capital Conservation Buffer of 2.5%.

(2)Reflects the well-capitalized standard applicable to the Company for purposes of the Federal Reserve’s Regulation Y. The Federal Reserve has not yet revised the well-capitalized standard for bank holding companies (“BHCs”) to reflect the higher capital requirements imposed under the U.S. Basel III Rule or to add Common Equity Tier 1 capital ratio and Tier 1 leverage ratio requirements to this standard. As a result, the Common Equity Tier 1 capital ratio and Tier 1 leverage ratio are denoted as “N/A” in this column. If the Federal Reserve were to apply the same or a very similar well-capitalized standard to BHCs as the standard applicable to our subsidiary banks, we believe the Company’s capital ratios as of June 30, 2024 would exceed such revised well-capitalized standard.

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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 (11) and (12) of the Consolidated Financial Statements in Item 1 for further information on these various funding sources. See Note (23) “Shareholders’ Equity” of the Consolidated Financial Statements presented under Item 7 of the 2023 Form 10-K for details on the Company’s issuance of Series D Preferred Stock in June 2015, Series E Preferred Stock and associated Depositary Shares in May 2020 and additional common stock offering in June 2022.

The 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 and Series E 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 2024, the Company declared a quarterly cash dividend of $0.45 per common share. In January, April, July and October of 2023, the Company declared a quarterly cash dividend of $0.40 per common share.

The Company continues to leverage its capital management framework to assess and monitor risk when making capital decisions. Management is committed to maintaining the Company’s capital levels above the “Well Capitalized” levels established by the FRB for bank holding companies.

LIQUIDITY

The Company 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 management process includes the utilization of stress testing processes and other aspects of the Company's liquidity management framework to assess and monitor risk, and inform decision making. The liquidity to meet the demands of customers is provided by maturing assets, liquid assets that can be converted to cash and the ability to attract funds from external sources. Liquid assets refer to money market assets such as Federal funds sold and interest-bearing deposits with banks, as well as available-for-sale debt securities and equity securities with readily determinable fair values which are not pledged to secure public funds. In addition, trade date receivables represent certain sales or calls of available-for-sale securities that await cash settlement, typically in the month following the trade date.

In addition to the liquidity management noted above, in the second quarter of 2024, the Company completed a loan sale transaction within our property and casualty insurance premium finance receivables portfolio which demonstrated that our premium finance portfolio is a strong source of additional liquidity if needed and demonstrated the flexibility to continue to manage our balance sheet effectively. Net proceeds to the Company totaled approximately $627.5 million and a gain on the sale was recorded for approximately $4.6 million. We maintain our liquid assets to ensure that we would have the balance sheet strength to serve our clients. As a result, the Company believes that it has sufficient funds and access to funds to effectively meet its working capital and other needs. The Company will continue to prudently evaluate liquidity sources, including the management of availability with the FHLB and FRB and utilization of the revolving credit facility with unaffiliated banks. 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 typically 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 as material an impact on the Company’s business as entities operating in other industries. 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 Risk” 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,” “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, and which may include, but are not limited to, those listed below and the Risk Factors discussed under Item 1A of the Company’s 2023 Annual Report on Form 10-K and in any of the Company’s

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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 plans to form additional de novo banks or branch offices, and management’s long-term performance goals, as well as statements relating to the anticipated effects on the Company’s 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:

•economic conditions and events that affect the economy, housing prices, the job market and other factors that may adversely affect the Company’s liquidity and the performance of its loan portfolios, including an actual or threatened U.S. government debt default or rating downgrade, particularly in the markets in which it operates;

•negative effects suffered by us or our customers resulting from changes in U.S. trade policies;

•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 credit 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;

•the interest rate environment, including a prolonged period of low interest rates or rising interest rates, either broadly or for some types of instruments, which may affect the Company’s net interest income and net interest margin, and which could materially adversely affect the Company’s profitability;

•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 losses, difficulties or developments related to the Company’s recent or future acquisitions;

•unexpected difficulties and losses related to FDIC-assisted acquisitions;

•harm to the Company’s reputation;

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

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

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

•ability 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;

•failure or breaches of our security systems or infrastructure, or those of third parties;

•security breaches, including denial of service attacks, hacking, social engineering attacks, malware intrusion and similar events or data corruption attempts and identity theft;

•adverse effects on our information technology systems, or those of third parties, resulting from failures, human error or cyberattacks (including ransomware);

•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, and ability of the Company to effectively manage the transition of the chief executive officer role;

•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

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without the use of a bank;

•the soundness of other financial institutions and the impact of recent failures of financial institutions, including broader financial institution liquidity risk and concerns;

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

•liabilities, potential customer loss or reputational harm related to closings of existing branches;

•examinations and challenges by tax authorities, and any unanticipated impact of the Tax Act;

•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;

•the impact of the Company’s transition from LIBOR to an alternative benchmark rate for current and future transactions;

•a decrease in the Company’s capital ratios, including as a result of 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;

•changes in laws, regulations, rules, standards and contractual obligations regarding data privacy and cybersecurity;

•a lowering of our credit rating;

•changes in U.S. monetary policy and changes to the Federal Reserve’s balance sheet, including changes in response to persistent inflation or otherwise;

•regulatory restrictions upon our ability to market our products to consumers and limitations on our ability to profitably operate our mortgage business;

•increased costs of compliance, heightened regulatory capital requirements and other risks associated with changes in regulation and the regulatory environment;

•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;

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

•widespread outages of operational, communication, or other systems, whether internal or provided by third parties, natural or other disasters (including acts of terrorism, armed hostilities and pandemics), and the effects of climate change.

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 after the date of this report. 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.

ITEM 3

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

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 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.

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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 maximizing net interest income.

The following interest rate scenarios display the percentage change in net interest income over a one-year time horizon assuming increases and decreases of 100 and 200 basis points. The Static Shock Scenario results incorporate actual cash flows and repricing characteristics for balance sheet instruments following an instantaneous, parallel change in market rates based upon a static (i.e. no growth or constant) balance sheet. Conversely, the Ramp Scenario results incorporate management’s projections of future volume and pricing of each of the product lines following a gradual, parallel change in market rates over twelve months. Actual results may differ from these simulated results due to timing, magnitude, and frequency of interest rate changes as well as changes in market conditions and management strategies. The interest rate sensitivity for both the Static Shock and Ramp Scenarios at June 30, 2024, March 31, 2024 and June 30, 2023 is as follows:

Static Shock Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points		-200 Basis Points
June 30, 2024	1.5	%	1.0	%	0.6	%	(0.0)	%
March 31, 2024	1.9		1.4		1.5		1.6	%
June 30, 2023	5.7		2.9		(2.9)		(7.9)	%

Ramp Scenarios	+200 Basis Points		+100 Basis Points		-100 Basis Points		-200 Basis Points
June 30, 2024	1.2	%	1.0	%	0.9	%	1.0	%
March 31, 2024	0.8		0.6		1.3		2.0	%
June 30, 2023	2.9		1.8		(0.9)		(3.4)	%

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, floors and collars, 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 of mortgage loans to third party investors. See Note (14) “Derivative Financial Instruments” of the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s derivative financial instruments.

As shown above, the magnitude of potential changes in net interest income in various interest rate scenarios has continued to remain relatively neutral. Given the recent unprecedented rise in interest rates, the Company has made a conscious effort to reposition its exposure to changing interest rates given the uncertainty of the future interest rate environment. To this end, management has executed various derivative instruments including collars and receive fixed swaps to hedge variable rate loan exposures and originated a higher percentage of its loan originations in longer term fixed rate loans. The Company will continue to monitor current and projected interest rates and expects to execute additional derivatives to mitigate potential fluctuations in net interest margin in future periods.

Periodically, the Company enters 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 further 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, 2024 and June 30, 2023. See Note (14)

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“Derivative Financial Instruments” of the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s fees from covered call options for the six months ended June 30, 2024 and June 30, 2023.

ITEM 4

CONTROLS AND PROCEDURES

As of the end of the period covered by this report, management of the Company, under the supervision and with the participation of the Chief Executive Officer and Chief Financial Officer, carried out an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as defined under Rules 13a-15(e) and 15d-15(e) of the Exchange Act. 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 were effective, in ensuring the information relating to the Company (and its consolidated subsidiaries) required to be disclosed by the Company in the reports it files or submits under the Exchange Act was recorded, processed, summarized and reported in a timely manner.

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.

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.

Wintrust Mortgage California PAGA Matter

On May 24, 2022, a former Wintrust Mortgage employee filed a California Private Attorney General Act (“PAGA”) suit, not individually, but as representative of all Wintrust Mortgage’s California hourly employees, against Wintrust Mortgage in the Superior Court of San Diego County, California. Plaintiff alleges Wintrust Mortgage failed to provide: (i) accurate sick leave accrual and pay; (ii) overtime wages; (iii) accurately itemized wage statements; (iv) meal breaks and meal premiums; (v) timely payment of earned wages; (vi) payment of all earned wages; and (vii) payment of all vested vacation hours. Wintrust Mortgage disputes the validity of Plaintiff’s claims and believes, to the extent there were defects in complying with California law governing the payment of compensation to Plaintiff, such errors would have been de minimis. Plaintiff also has an arbitration agreement with a collective and class action waiver and on January 19, 2023, Wintrust Mortgage moved to compel arbitration. The court stayed litigation pending mediation, which was held on May 13, 2024. The parties agreed to settle the dispute for an immaterial amount. A hearing for court approval of the settlement has been set for October 4, 2024.

Wintrust Mortgage Fair Lending Matter

On May 25, 2022, a Wintrust Mortgage customer filed a putative class action and asserted individual claims against Wintrust Mortgage and Wintrust Financial Corporation in the District Court for the Northern District of Illinois. Plaintiff alleges that Wintrust Mortgage discriminated against black/African American borrowers and brings class claims under the Equal Credit Opportunity Act, Sections 1981 and 1982 under Chapter 42 of the United States Code; and the Fair Housing Act of 1968. Plaintiff also asserts individual claims under theories of promissory estoppel, fraudulent inducement, and breach of contract. On September 23, 2022, Wintrust filed a motion to dismiss the entire suit and the court granted that motion to dismiss on September 27, 2023 and gave Plaintiff until October 20, 2023 to file an amended complaint. Plaintiff timely filed an amended complaint. Wintrust moved to dismiss the amended complaint on November 21, 2023. Wintrust vigorously disputes these allegations, believing them to be legally and factually meritless, and Wintrust otherwise lacks sufficient information to estimate the amount of any potential liability.

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Wintrust Financial ERISA Matter

On July 29, 2022, a former Wintrust employee filed a class action in the District Court for the Northern District of Illinois asserting claims under the federal Employee Retirement Income Security Act (“ERISA”) against Wintrust Financial Corporation. Plaintiff alleges Wintrust breached its fiduciary duty in the selection of BlackRock Target Date funds for inclusion in its 401(k) plan, that Wintrust failed to monitor the performance of those funds, and in the alternative, Wintrust should be liable for breach of trust. Plaintiff’s sole basis for the allegations is that BlackRock Target Date funds allegedly performed more poorly than two comparable funds over a three-year period. Wintrust is one of several public companies that were sued on identical grounds within the same week by the same plaintiff’s law firm. On November 8, 2022, Wintrust filed a motion to dismiss the entire complaint. On July 14, 2023, the District Court granted Wintrust’s motion to dismiss and gave Plaintiff until August 2, 2023 to file an amended complaint. Plaintiff timely filed an amended complaint which Wintrust moved to dismiss on September 14, 2023. We believe plaintiff’s allegations continue to be legally and factually meritless and otherwise lack sufficient information to estimate the amount of any potential liability.

Other Matters

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 have been no material changes from the risk factors set forth under Part I, Item 1A “Risk Factors” in the 2023 Form 10-K.

Item 2: Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities

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 six months ended June 30, 2024.

Item 5: Other Information

Securities Trading Plans of Directors and Officers

During the three months ended June 30, 2024, none of our directors or officers adopted or terminated a Rule 10b5-1 trading plan or adopted or terminated a non-Rule 10b5-1 trading arrangement (as each term is defined in Item 408(a) of Regulation S-K).

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Item 6: Exhibits:

(a)Exhibits

2.1	Agreement and Plan of Merger, dated as of April 15, 2024 (incorporated by reference to Exhibit 99.1 of the Company’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on April 15, 2024).
3.1	Amended and Restated By-laws of the Company, as amended (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 1, 2024).
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	The XBRL Instance Document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL 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
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1)Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2024, formatted in iXBRL (Inline 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, 2024	/s/ DAVID L. STOEHR
		David L. Stoehr
		Executive Vice President and Chief Financial Officer (Principal Financial Officer and duly authorized officer)

Date:	August 8, 2024	/s/ JEFFREY D. HAHNFELD
		Jeffrey D. Hahnfeld
		Executive Vice President, Controller and Chief Accounting Officer (Principal Accounting Officer and duly authorized officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Timothy S. Crane, 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, 2024

/s/ TIMOTHY S. CRANE

Name:    Timothy S. Crane

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, 2024

/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, 2024, as filed with the Securities and Exchange Commission on August 8, 2024 (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/ TIMOTHY S. CRANE

Name:    Timothy S. Crane

Title:      President and Chief Executive Officer

Date:      August 8, 2024

/s/ DAVID L. STOEHR

Name:    David L. Stoehr

Title:      Executive Vice President and
               Chief Financial Officer

Date:     August 8, 2024

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

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2024	Aug. 06, 2024
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-35077
Entity Registrant Name	WINTRUST FINANCIAL CORP
Entity Incorporation, State or Country Code	IL
Entity Tax Identification Number	36-3873352
Entity Address, Address Line One	9700 W. Higgins Road, Suite 800
Entity Address, City or Town	Rosemont
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60018
City Area Code	847
Local Phone Number	939-9000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		66,500,386
Entity Central Index Key	0001015328
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock, no par value
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	WTFC
Security Exchange Name	NASDAQ
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D, no par value
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D, no par value
Trading Symbol	WTFCM
Security Exchange Name	NASDAQ
6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E, no par value
Entity Information [Line Items]
Title of 12(b) Security	6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E, no par value
Trading Symbol	WTFCP
Security Exchange Name	NASDAQ

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CONSOLIDATED STATEMENTS OF CONDITION - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Assets
Cash and due from banks	$ 415,462	$ 423,404	$ 513,858
Federal funds sold and securities purchased under resale agreements	62	60	59
Interest-bearing deposits with banks	2,824,314	2,084,323	2,163,708
Available-for-sale securities, at fair value	4,329,957	3,502,915	3,492,481
Held-to-maturity securities, at amortized cost, net of allowance for credit losses of $491, $347 and $406 at June 30, 2024, December 31, 2023 and June 30, 2023, respectively ($3.1 billion, $3.2 billion and $2.9 billion fair value at June 30, 2024, December 31, 2023 and June 30, 2023, respectively)	3,755,924	3,856,916	3,564,473
Trading account securities	4,134	4,707	3,027
Equity securities with readily determinable fair value	112,173	139,268	116,275
Federal Home Loan Bank and Federal Reserve Bank stock	256,495	205,003	195,117
Brokerage customer receivables	13,682	10,592	15,722
Mortgage loans held-for-sale, at fair value	411,851	292,722	338,728
Loans, net of unearned income	44,675,531	42,131,831	41,023,408
Allowance for loan losses	(437,069)	(427,265)	(387,380)
Premises, software and equipment, net	722,295	748,966	749,393
Lease investments, net	275,459	281,280	274,351
Accrued interest receivable and other assets	1,671,334	1,551,899	1,455,748
Trade date securities receivable	0	690,722	0
Goodwill	655,955	656,672	656,674
Other acquisition-related intangible assets	20,607	22,889	25,653
Total assets	59,781,516	56,259,934	54,286,176
Deposits:
Non-interest-bearing	10,031,440	10,420,401	10,604,915
Interest-bearing	38,017,586	34,976,769	33,433,792
Total deposits	48,049,026	45,397,170	44,038,707
Federal Home Loan Bank advances	3,176,309	2,326,071	2,026,071
Other borrowings	606,579	645,813	665,219
Subordinated notes	298,113	437,866	437,628
Junior subordinated debentures	253,566	253,566	253,566
Accrued interest payable and other liabilities	1,861,295	1,799,922	1,823,073
Total liabilities	54,244,888	50,860,408	49,244,264
Shareholders’ Equity:
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at June 30, 2024, December 31, 2023 and June 30, 2023; 61,824,947 shares issued at June 30, 2024, 61,268,566 shares issued at December 31, 2023 and 61,219,240 shares issued at June 30, 2023	61,825	61,269	61,219
Surplus	1,964,645	1,943,806	1,923,623
Treasury stock, at cost, $64,808 shares at June 30, 2024, 24,940 shares at December 31, 2023, and 21,564 shares at June 30, 2023	(5,760)	(2,217)	(1,966)
Retained earnings	3,615,616	3,345,399	3,120,626
Accumulated other comprehensive loss	(512,198)	(361,231)	(474,090)
Total shareholders’ equity	5,536,628	5,399,526	5,041,912
Total liabilities and shareholders’ equity	59,781,516	56,259,934	54,286,176
Series D - $25 liquidation value; 5,000,000 shares issued and outstanding at June 30, 2024, December 31, 2023 and June 30, 2023
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:	125,000	125,000	125,000
Series E - $25,000 liquidation value; 11,500 shares issued and outstanding at June 30, 2024, December 31, 2023 and June 30, 2023
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:	287,500	287,500	287,500
Loans
Assets
Loans, net of unearned income	44,675,531	42,131,831	41,023,408
Allowance for loan losses	(363,719)	(344,235)	(302,499)
Net loans	$ 44,311,812	$ 41,787,596	$ 40,720,909

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CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Held-to-maturity securities, allowance for credit loss	$ 491	$ 347	$ 406
Held-to-maturity securities, fair value	$ 3,060,467	$ 3,215,468	$ 2,887,891
Preferred stock, authorized (in shares)	20,000,000	20,000,000	20,000,000
Common stock, stated value (usd per share)	$ 1.00	$ 1.00	$ 1.00
Common stock, authorized (in shares)	100,000,000	100,000,000	100,000,000
Common stock, issued (in shares)	61,824,947	61,268,566	61,219,240
Treasury stock (in shares)	64,808	24,940	21,564
Series D Preferred Stock
Preferred stock, liquidation value per share (usd per share)	$ 25	$ 25	$ 25
Preferred stock, issued (in shares)	5,000,000	5,000,000	5,000,000
Preferred stock, outstanding (in shares)	5,000,000	5,000,000	5,000,000
Series E Preferred Stock
Preferred stock, liquidation value per share (usd per share)	$ 25,000	$ 25,000	$ 25,000
Preferred stock, issued (in shares)	11,500	11,500	11,500
Preferred stock, outstanding (in shares)	11,500	11,500	11,500

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CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Interest income
Interest and fees on loans	$ 749,812	$ 621,057	$ 1,460,153	$ 1,179,749
Mortgage loans held-for-sale	5,434	4,178	9,580	7,706
Interest-bearing deposits with banks	19,731	16,882	36,389	30,350
Federal funds sold and securities purchased under resale agreements	17	1	36	71
Investment securities	69,779	51,243	139,457	111,186
Trading account securities	13	6	31	20
Federal Home Loan Bank and Federal Reserve Bank stock	4,974	3,544	9,452	7,224
Brokerage customer receivables	219	265	394	560
Total interest income	849,979	697,176	1,655,492	1,336,866
Interest expense
Interest on deposits	335,703	213,495	635,235	358,297
Interest on Federal Home Loan Bank advances	24,797	17,399	46,845	36,534
Interest on other borrowings	8,700	8,485	17,948	16,339
Interest on subordinated notes	5,185	5,523	10,672	11,011
Interest on junior subordinated debentures	4,984	4,737	9,988	9,153
Total interest expense	379,369	249,639	720,688	431,334
Net interest income	470,610	447,537	934,804	905,532
Provision for credit losses	40,061	28,514	61,734	51,559
Net interest income after provision for credit losses	430,549	419,023	873,070	853,973
Non-interest income
Wealth management	35,413	33,858	70,228	63,803
Mortgage banking	29,124	29,981	56,787	48,245
Service charges on deposit accounts	15,546	13,608	30,357	26,511
(Losses) gains on investment securities, net	(4,282)	0	(2,956)	1,398
Fees from covered call options	2,056	2,578	6,903	12,969
Trading gains, net	70	106	747	919
Operating lease income, net	13,938	12,227	28,048	25,273
Other	29,282	20,672	71,613	41,681
Total non-interest income	121,147	113,030	261,727	220,799
Non-interest expense
Salaries and employee benefits	198,541	184,923	393,714	361,704
Software and equipment	29,231	26,205	56,962	50,902
Operating lease equipment	10,834	9,816	21,517	19,649
Occupancy, net	19,585	19,176	38,671	37,662
Data processing	9,503	9,726	18,795	19,135
Advertising and marketing	17,436	17,794	30,476	29,740
Professional fees	9,967	8,940	19,520	17,103
Amortization of other acquisition-related intangible assets	1,122	1,499	2,280	2,734
FDIC insurance	10,429	9,008	24,966	17,677
Other real estate owned expense, net	(259)	118	133	(89)
Other	33,964	33,418	66,464	63,575
Total non-interest expense	340,353	320,623	673,498	619,792
Income before taxes	211,343	211,430	461,299	454,980
Income tax expense	58,955	56,680	121,617	120,032
Net income	152,388	154,750	339,682	334,948
Preferred stock dividends	6,991	6,991	13,982	13,982
Net income applicable to common shares	$ 145,397	$ 147,759	$ 325,700	$ 320,966
Net income per common share-Basic (usd per share)	$ 2.35	$ 2.41	$ 5.28	$ 5.26
Net income per common share-Diluted (usd per share)	2.32	2.38	5.21	5.18
Cash dividends declared per common share (usd per share)	$ 0.45	$ 0.40	$ 0.90	$ 0.80
Weighted average common shares outstanding (in shares)	61,839	61,192	61,660	61,072
Dilutive potential common shares (in shares)	926	902	901	933
Average common shares and dilutive common shares (in shares)	62,765	62,094	62,561	62,005

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 152,388	$ 154,750	$ 339,682	$ 334,948
Unrealized (losses) gains on available-for-sale securities
Before tax	(20,768)	(46,231)	(98,656)	809
Tax effect	5,493	12,322	26,094	(215)
Net of tax	(15,275)	(33,909)	(72,562)	594
Reclassification of net gains on available-for-sale securities included in net income
Before tax	1,204	2	1,178	562
Tax effect	(319)	(1)	(312)	(152)
Net of tax	885	1	866	410
Reclassification of amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale
Before tax	14	28	64	71
Tax effect	(4)	(8)	(17)	(19)
Net of tax	10	20	47	52
Net unrealized (losses) gains on available-for-sale securities	(16,170)	(33,930)	(73,475)	132
Unrealized (losses) gains on derivative instruments
Before tax	(10,843)	(106,431)	(92,934)	(71,765)
Tax effect	2,868	28,363	24,581	19,125
Net unrealized (losses) gains on derivative instruments	(7,975)	(78,068)	(68,353)	(52,640)
Foreign currency adjustment
Before tax	(3,558)	6,527	(11,207)	7,417
Tax effect	653	(1,183)	2,068	(1,363)
Net foreign currency adjustment	(2,905)	5,344	(9,139)	6,054
Total other comprehensive (loss) income	(27,050)	(106,654)	(150,967)	(46,454)
Comprehensive income	$ 125,338	$ 48,096	$ 188,715	$ 288,494

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred stock	Common stock	Surplus	Treasury stock	Retained earnings	Retained earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income (loss)
Beginning balance at Dec. 31, 2022	$ 4,796,838	$ (544)	$ 412,500	$ 60,797	$ 1,902,474	$ (304)	$ 2,849,007	$ (544)	$ (427,636)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	334,948						334,948
Other comprehensive loss, net of tax	(46,454)								(46,454)
Cash dividends declared on common stock	(48,803)						(48,803)
Dividends on Series D and E preferred stock	(13,982)						(13,982)
Stock-based compensation	16,403				16,403
Common stock issued for:
Exercise of stock options	2,216			54	2,162
Restricted stock awards	(1,662)			283	(283)	(1,662)
Employee stock purchase plan	1,601			22	1,579
Director compensation plan	1,351			63	1,288
Ending balance at Jun. 30, 2023	5,041,912		412,500	61,219	1,923,623	(1,966)	3,120,626		(474,090)
Beginning balance at Mar. 31, 2023	5,015,506		412,500	61,198	1,913,947	(1,966)	2,997,263		(367,436)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	154,750						154,750
Other comprehensive loss, net of tax	(106,654)								(106,654)
Cash dividends declared on common stock	(24,396)						(24,396)
Dividends on Series D and E preferred stock	(6,991)						(6,991)
Stock-based compensation	8,108				8,108
Common stock issued for:
Restricted stock awards	0			8	(8)
Employee stock purchase plan	907			13	894
Director compensation plan	682				682
Ending balance at Jun. 30, 2023	5,041,912		412,500	61,219	1,923,623	(1,966)	3,120,626		(474,090)
Beginning balance at Dec. 31, 2023	5,399,526		412,500	61,269	1,943,806	(2,217)	3,345,399		(361,231)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	339,682						339,682
Other comprehensive loss, net of tax	(150,967)								(150,967)
Cash dividends declared on common stock	(55,483)						(55,483)
Dividends on Series D and E preferred stock	(13,982)						(13,982)
Stock-based compensation	18,107				18,107
Common stock issued for:
Exercise of stock options	25			1	24
Restricted stock awards	(3,539)			523	(519)	(3,543)
Employee stock purchase plan	1,643			17	1,626
Director compensation plan	1,616			15	1,601
Ending balance at Jun. 30, 2024	5,536,628		412,500	61,825	1,964,645	(5,760)	3,615,616		(512,198)
Beginning balance at Mar. 31, 2024	5,436,400		412,500	61,798	1,954,532	(5,757)	3,498,475		(485,148)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	152,388						152,388
Other comprehensive loss, net of tax	(27,050)								(27,050)
Cash dividends declared on common stock	(28,256)						(28,256)
Dividends on Series D and E preferred stock	(6,991)						(6,991)
Stock-based compensation	8,950				8,950
Common stock issued for:
Restricted stock awards	(35)			18	(50)	(3)
Employee stock purchase plan	902			9	893
Director compensation plan	320				320
Ending balance at Jun. 30, 2024	$ 5,536,628		$ 412,500	$ 61,825	$ 1,964,645	$ (5,760)	$ 3,615,616		$ (512,198)

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Cash dividends declared on common stock (usd per share)	$ 0.45	$ 0.40	$ 0.90	$ 0.80
Series D Preferred Stock
Dividends on preferred stock (usd per share)	0.41	0.41	0.82	0.82
Series E Preferred Stock
Dividends on preferred stock (usd per share)	$ 429.69	$ 429.69	$ 859.38	$ 859.38

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating Activities:
Net income	$ 339,682	$ 334,948
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	61,734	51,559
Depreciation, amortization and accretion, net	45,142	34,997
Stock-based compensation expense	18,107	16,403
(Accretion) amortization of discount/premium on securities, net	(347)	743
Accretion of discount and deferred fees on loans, net	(7,127)	(9,067)
Mortgage servicing rights fair value changes	1,448	13,190
Non-designated derivatives fair value changes, net	(9,566)	(2,088)
Originations and purchases of mortgage loans held-for-sale	(1,197,799)	(980,276)
Early buy-out exercises of mortgage loans held-for-sale guaranteed by U.S. government agencies, net of subsequent paydowns or payoffs	(3,896)	29,890
Proceeds from sales of mortgage loans held-for-sale	1,083,551	900,046
Bank owned life insurance (“BOLI”) gains	(3,002)	(2,673)
Decrease (increase) in trading securities, net	573	(1,900)
(Increase) decrease in brokerage customer receivables, net	(3,090)	665
Gains on mortgage loans sold	(25,640)	(24,133)
Gains on premium financing receivables sold	(4,575)	0
Losses (gains) on investment securities, net	2,956	(1,398)
(Gains) losses on sales of premises and equipment, net	(112)	1,594
(Gains) losses on sales and fair value adjustments of other real estate owned, net	(316)	100
Increase in accrued interest receivable and other assets, net	(88,565)	(83,646)
Increase in accrued interest payable and other liabilities, net	83,207	129,238
Net Cash Provided by Operating Activities	292,365	408,192
Investing Activities:
Proceeds from calls and sales of available-for-sale securities	690,866	1,875,672
Proceeds from payments and maturities of available-for-sale securities	193,605	156,892
Proceeds from payments, maturities and calls of held-to-maturity securities	100,276	84,015
Proceeds from sales of equity securities with readily determinable fair value	51,792	23,592
Proceeds from sales and capital distributions of equity securities without readily determinable fair value	2,226	67
Purchases of available-for-sale securities	(1,118,596)	(1,359,722)
Purchases of held-to-maturity securities	0	(8,439)
Purchases of equity securities with readily determinable fair value	(24,000)	(26,677)
Purchases of equity securities without readily determinable fair value	(5,972)	(5,600)
(Purchases) redemptions of Federal Home Loan Bank and Federal Reserve Bank stock, net	(51,492)	29,642
Distributions from investments in partnerships, net	2,239	4,995
Net cash paid in business combinations	0	(4,966)
Proceeds from sales of premium financing receivables, net	627,450	0
Proceeds from sales of other real estate owned	1,752	1,168
Increase in interest-bearing deposits with banks, net	(743,606)	(172,149)
Increase in loans, net	(3,241,661)	(1,820,788)
Redemption of BOLI	306	0
Purchases of premises and equipment, net	(49,759)	(9,318)
Net Cash Used for Investing Activities	(3,564,574)	(1,231,616)
Financing Activities:
Increase in deposit accounts, net	2,651,854	1,136,159
(Decrease) increase in other borrowings, net	(28,103)	59,552
Increase (decrease) in Federal Home Loan Bank advances, net	850,238	(290,000)
Cash payments to settle contingent consideration liabilities recognized in business combinations	0	(57)
Repayment of subordinated notes	(140,000)	0
Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and director compensation plan	3,284	5,168
Common stock repurchases for tax withholdings related to stock-based compensation	(3,539)	(1,662)
Dividends paid	(69,465)	(62,785)
Net Cash Provided by Financing Activities	3,264,269	846,375
Net (Decrease) Increase in Cash and Cash Equivalents	(7,940)	22,951
Cash and Cash Equivalents at Beginning of Period	423,464	490,966
Cash and Cash Equivalents at End of Period	$ 415,524	$ 513,917

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Basis of Presentation

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The interim consolidated financial statements of Wintrust Financial Corporation and its subsidiaries (collectively, “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 interim consolidated financial statements.

The accompanying interim 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 interim unaudited 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, 2023 (“2023 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 credit losses, including the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity securities losses, 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 2023 Form 10-K. In preparation of these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.

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Recent Accounting Developments

6 Months Ended

Jun. 30, 2024

Accounting Policies [Abstract]

Recent Accounting Developments

Recent Accounting Developments

Equity Method and Joint Ventures - Investments in Tax Credit Structures

In March 2023, the FASB issued ASU No. 2023-02, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method,” which allows reporting entities the option to apply the proportional amortization method to other tax credit programs besides the Low-Income Housing Tax Credit structures. The guidance requires application of the proportional amortization method on a tax-credit-program-by-tax-credit-program basis rather than electing the method at the reporting level entity level. The Company adopted ASU No. 2023-02 as of January 1, 2024. Adoption of this standard did not have a material impact on the Company’s consolidated financial statements.

Segment Reporting

In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” to enhance public entity disclosures regarding significant segment expenses which are regularly reported to an entity’s chief operating decision-maker (“CODM”) and included in a segment’s reported profit or loss. This ASU requires disclosure of the amount and composition of “other segment items,” the title and position of the CODM, and how the CODM uses reported measures of profit or loss to assess segment performance. Further, the guidance requires certain segment disclosures previously provided only annually, on an interim basis. This guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The guidance is to be applied retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of adopting this guidance on the consolidated financial statements.

Income Tax Disclosures

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” to enhance the transparency and decision usefulness of income tax disclosures. This ASU requires annually that all entities disclose increasingly disaggregated information on amount of income taxes paid. Further, this ASU requires annually that all public entities must disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a specific quantitative threshold. This guidance is effective for fiscal years beginning after December 15, 2024, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Compensation – Scope Application of Profits Interest and Similar Awards

In March 2024, the FASB issued ASU No. 2024-01, “Compensation – Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards” which clarifies the guidance by providing an illustrative example to demonstrate how an entity should apply the scope guidance in Topic 718 when determining whether profits interest and similar awards should be accounted for in accordance with Topic 718. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2024, including interim periods therein, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. 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, 2024

Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]

Business Combinations

Business Combinations

On April 3, 2023, the Company completed its acquisition of Rothschild & Co Asset Management US Inc. and Rothschild & Co Risk Based Investments LLC from Rothschild & Co North America Inc. As of the acquisition date, the Company acquired approximately $12.6 million in net assets. As the transaction was determined to be a business combination, the Company recorded goodwill of approximately $2.6 million on the purchase.

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Cash and Cash Equivalents

6 Months Ended

Jun. 30, 2024

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. These items are included within the Company’s Consolidated Statements of Condition as cash and due from banks, and federal funds sold and securities purchased under resale agreements.

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Investment Securities

6 Months Ended

Jun. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The following tables are a summary of the investment securities portfolios as of the dates shown:

	June 30, 2024
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available-for-sale securities
U.S. Treasury	$	102,721	$	5	$	(14)	$	102,712
U.S. government agencies	50,000		—		(4,808)		45,192
Municipal	151,347		390		(5,129)		146,608
Corporate notes:
Financial issuers	83,996		—		(7,011)		76,985
Other	1,000		—		(10)		990
Mortgage-backed: (1)
Residential mortgage-backed securities	4,320,215		361		(541,742)		3,778,834
Commercial (multi-family) mortgage-backed securities	18,096		8		(626)		17,478
Collateralized mortgage obligations	179,315		629		(18,786)		161,158
Total available-for-sale securities	$	4,906,690	$	1,393	$	(578,126)	$	4,329,957
Held-to-maturity securities
U.S. government agencies	$	336,458	$	—	$	(70,928)	$	265,530
Municipal	166,400		155		(6,789)		159,766
Mortgage-backed: (1)
Residential mortgage-backed securities	2,962,721		—		(591,601)		2,371,120
Commercial (multi-family) mortgage-backed securities	6,390		—		(300)		6,090
Collateralized mortgage obligations	227,247		362		(23,636)		203,973
Corporate notes	57,199		—		(3,211)		53,988
Total held-to-maturity securities	$	3,756,415	$	517	$	(696,465)	$	3,060,467
Less: Allowance for credit losses	(491)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924
Equity securities with readily determinable fair value	$	117,674	$	2,882	$	(8,383)	$	112,173

(1)None of our mortgage-backed securities are subprime.

	December 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	6,960	$	8	$	—	$	6,968
U.S. government agencies	50,000		—		(4,876)		45,124
Municipal	144,299		657		(3,998)		140,958
Corporate notes:
Financial issuers	83,996		—		(8,456)		75,540
Other	1,000		—		(9)		991
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,505,012		1,392		(446,784)		3,059,620
Commercial (multi-family) mortgage-backed securities	13,201		68		(289)		12,980
Collateralized mortgage obligations	175,346		1,400		(16,012)		160,734
Total available-for-sale securities	$	3,979,814	$	3,525	$	(480,424)	$	3,502,915
Held-to-maturity securities
U.S. government agencies	$	336,468	$	—	$	(67,058)	$	269,410
Municipal	172,933		565		(3,778)		169,720
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,042,828		1,922		(549,265)		2,495,485
Commercial (multi-family) mortgage-backed securities	6,415		—		(184)		6,231
Collateralized mortgage obligations	241,075		978		(21,502)		220,551
Corporate notes	57,544		7		(3,480)		54,071
Total held-to-maturity securities	$	3,857,263	$	3,472	$	(645,267)	$	3,215,468
Less: Allowance for credit losses	(347)
Held-to-maturity securities, net of allowance for credit losses	$	3,856,916
Equity securities with readily determinable fair value	$	143,312	$	3,500	$	(7,544)	$	139,268

(1)None of our mortgage-backed securities are subprime.

	June 30, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	80,000		—		(5,725)		74,275
Municipal	173,540		102		(6,231)		167,411
Corporate notes:
Financial issuers	83,995		—		(12,920)		71,075
Other	1,000		—		(15)		985
Mortgage-backed: (1)
Mortgage-backed securities	3,585,943		—		(483,659)		3,102,284
Collateralized mortgage obligations	94,373		—		(17,922)		76,451
Total available-for-sale securities	$	4,018,851	$	102	$	(526,472)	$	3,492,481
Held-to-maturity securities
U.S. government agencies	$	339,604	$	—	$	(71,022)	$	268,582
Municipal	176,128		362		(4,502)		171,988
Mortgage-backed: (1)
Mortgage-backed securities	2,832,138		—		(574,114)		2,258,024
Collateralized mortgage obligations	159,120		—		(23,014)		136,106
Corporate notes	57,889		35		(4,733)		53,191
Total held-to-maturity securities	$	3,564,879	$	397	$	(677,385)	$	2,887,891
Less: Allowance for credit losses	(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,564,473
Equity securities with readily determinable fair value	$	120,629	$	3,711	$	(8,065)	$	116,275

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

Equity securities without readily determinable fair values totaled $62.7 million as of June 30, 2024. Equity securities without readily determinable fair values are included as part of accrued interest receivable and other assets in the Company’s Consolidated Statements of Condition. The Company monitors its equity investments without readily determinable fair values to identify potential transactions that may indicate an observable price change in orderly transactions for the identical or a similar investment of the same issuer, requiring adjustment to its carrying amount. During the three and six months ended June 30, 2024 and June 30, 2023, the Company recorded no upward or downward adjustments related to such observable price changes. The Company conducts a quarterly assessment of its equity securities without readily determinable fair values to determine whether impairment exists in such securities, considering, among other factors, the nature of the securities, financial condition of the issuer and expected future cash flows. During the three and six months ended June 30, 2024, the Company recorded $3.7 million of impairment of equity securities without readily determinable fair values. During the three and six months ended June 30, 2023, the Company recorded no impairment of equity securities without readily determinable fair values.

The following table presents the portion of the Company’s available-for-sale investment securities portfolios that have gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2024:

	Continuous unrealized losses existing for less than 12 months				Continuous unrealized losses existing for greater than 12 months				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Available-for-sale securities
U.S. Treasury	$	90,735	$	(14)	$	—	$	—	$	90,735	$	(14)
U.S. government agencies	—		—		45,192		(4,808)		45,192		(4,808)
Municipal	42,560		(333)		78,578		(4,796)		121,138		(5,129)
Corporate notes:
Financial issuers	—		—		76,985		(7,011)		76,985		(7,011)
Other	—		—		990		(10)		990		(10)
Mortgage-backed: (1)
Residential mortgage-backed securities	1,226,130		(19,491)		2,537,424		(522,251)		3,763,554		(541,742)
Commercial (multi-family) mortgage-backed securities	14,505		(626)		—		—		14,505		(626)
Collateralized mortgage obligations	16,384		(81)		69,273		(18,705)		85,657		(18,786)
Total available-for-sale securities	$	1,390,314	$	(20,545)	$	2,808,442	$	(557,581)	$	4,198,756	$	(578,126)

(1)None of our mortgage-backed securities are subprime.

The Company conducts a regular assessment of its investment securities to determine whether securities are experiencing credit losses. Factors for consideration include the nature of the securities, credit ratings or financial condition of the issuer, the extent 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 available-for-sale securities with unrealized losses at June 30, 2024 to be experiencing credit losses and recognized no resulting allowance for credit losses for such individually assessed credit losses. 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. Available-for-sale securities with continuous unrealized losses existing for more than twelve months at June 30, 2024 were primarily mortgage-backed securities with unrealized losses due to increased market rates during such period.

See Note (7) “Allowance for Credit Losses” in Item 1 of this report for further discussion regarding any credit losses associated with held-to-maturity securities at June 30, 2024.

The following table provides information as to the amount of gross gains and losses, adjustments and impairment on investment securities recognized in earnings and proceeds received through the sale or call of investment securities:

	Three months ended June 30,				Six months ended June 30,
(In thousands)	2024		2023		2024		2023
Realized gains on investment securities	$	1,325	$	6	$	2,360	$	611
Realized losses on investment securities	(21)		(6)		(129)		(51)
Net realized gains on investment securities	1,304		0		2,231		560
Unrealized gains on equity securities with readily determinable fair value	74		684		1,108		2,974
Unrealized losses on equity securities with readily determinable fair value	(1,931)		(684)		(2,564)		(2,136)
Net unrealized (losses) gains on equity securities with readily determinable fair value	(1,857)		0		(1,456)		838
Impairment of equity securities without readily determinable fair values	(3,729)		—		(3,731)		—
(Losses) gains on investment securities, net	$	(4,282)	$	0	$	(2,956)	$	1,398

The amortized cost and fair value of available-for-sale and held-to-maturity investment securities as of June 30, 2024, December 31, 2023 and June 30, 2023, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2024				December 31, 2023				June 30, 2023
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	145,856	$	145,599	$	53,162	$	52,945	$	93,724	$	93,137
Due in one to five years	139,409		131,506		132,348		123,985		138,704		126,776
Due in five to ten years	84,756		79,216		82,040		76,869		41,655		36,315
Due after ten years	19,043		16,166		18,705		15,782		64,452		57,518
Mortgage-backed	4,517,626		3,957,470		3,693,559		3,233,334		3,680,316		3,178,735
Total available-for-sale securities	$	4,906,690	$	4,329,957	$	3,979,814	$	3,502,915	$	4,018,851	$	3,492,481
Held-to-maturity securities
Due in one year or less	$	8,356	$	8,213	$	5,169	$	5,142	$	2,479	$	2,475
Due in one to five years	114,457		109,845		109,602		105,835		102,182		96,806
Due in five to ten years	85,507		82,499		99,700		98,718		106,708		105,054
Due after ten years	351,737		278,727		352,474		283,506		362,252		289,426
Mortgage-backed	3,196,358		2,581,183		3,290,318		2,722,267		2,991,258		2,394,130
Total held-to-maturity securities	$	3,756,415	$	3,060,467	$	3,857,263	$	3,215,468	$	3,564,879	$	2,887,891
Less: Allowance for credit losses	(491)				(347)				(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924			$	3,856,916			$	3,564,473

Securities having a carrying value of $7.6 billion at June 30, 2024 as well as securities having a carrying value of $6.9 billion and $6.4 billion at December 31, 2023 and June 30, 2023, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank (“FHLB”) advances and available lines of credit, securities sold under repurchase agreements and derivatives. At June 30, 2024, 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, 2024

Receivables [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)	2024			2023			2023
Balance:
Commercial	$	14,154,462		$	12,832,053		$	12,600,471
Commercial real estate	11,947,197			11,344,164			10,608,811
Home equity	356,313			343,976			336,974
Residential real estate	3,067,335			2,769,666			2,643,240
Premium finance receivables—property & casualty	7,100,753			6,903,529			6,762,698
Premium finance receivables—life insurance	7,962,115			7,877,943			8,039,273
Consumer and other	87,356			60,500			31,941
Total loans, net of unearned income	$	44,675,531		$	42,131,831		$	41,023,408
Mix:
Commercial	31		%	30		%	31		%
Commercial real estate	27			27			26
Home equity	1			1			1
Residential real estate	7			7			6
Premium finance receivables—property & casualty	16			16			16
Premium finance receivables—life insurance	18			19			20
Consumer and other	0			0			0
Total loans, net of unearned income	100		%	100		%	100		%

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses, which, for the commercial and commercial real estate portfolios, are located primarily within the geographic market areas that the banks serve. Various niche lending businesses, including franchise lending and insurance agency lending, operate on a national level. 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 $248.3 million at June 30, 2024, $285.4 million at December 31, 2023 and $281.7 million at June 30, 2023.

Total loans, excluding purchased credit deteriorated (“PCD”) loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $89.6 million at June 30, 2024, $84.2 million at December 31, 2023 and $72.8 million at June 30, 2023.

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

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Allowance for Credit Losses

6 Months Ended

Jun. 30, 2024

Credit Loss [Abstract]

Allowance for Credit Losses

Allowance for Credit Losses

In accordance with ASC 326, the Company is required to measure the allowance for credit losses of financial assets with similar risk characteristics on a collective or pooled basis. In considering the segmentation of financial assets measured at amortized cost into pools, the Company considered various risk characteristics in its analysis. Generally, the segmentation utilized represents the level at which the Company develops and documents its systematic methodology to determine the allowance for credit losses for the financial assets held at amortized cost, specifically the Company's loan portfolio and debt securities classified as held-to-maturity. Descriptions of the Company’s loan portfolio segments and major debt security types are included in Note (5) “Allowance for Credit Losses” of the 2023 Form 10-K.

In accordance with ASC 326, the Company elected to not measure an allowance for credit losses on accrued interest. As such accrued interest is written off in a timely manner when deemed uncollectible. Any such write-off of accrued interest will reverse previously recognized interest income. In addition, the Company elected to not include accrued interest within presentation and disclosures of the carrying amount of financial assets held at amortized cost. This election is applicable to the various disclosures included within the Company's financial statements. Accrued interest related to financial assets held at amortized cost is included within accrued interest receivable and other assets within the Company's Consolidated Statements of Condition and totaled $297.2 million at June 30, 2024, $304.5 million at December 31, 2023, and $267.3 million at June 30, 2023.

The tables below show the aging of the Company’s loan portfolio by the segmentation noted above at June 30, 2024, December 31, 2023 and June 30, 2023:

As of June 30, 2024			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	51,087	$	304	$	16,485	$	36,358	$	14,050,228	$	14,154,462
Commercial real estate
Construction and development	2,528		—		1,699		6,539		2,249,785		2,260,551
Non-construction	45,761		—		4,856		31,526		9,604,503		9,686,646
Home equity	1,100		—		275		1,229		353,709		356,313
Residential real estate, excluding early buy-out loans	18,198		—		1,977		130		2,912,852		2,933,157
Premium finance receivables
Property and casualty insurance loans	32,722		22,427		29,925		45,927		6,969,752		7,100,753
Life insurance loans	—		—		4,118		17,693		7,940,304		7,962,115
Consumer and other	3		121		81		366		86,785		87,356
Total loans, net of unearned income, excluding early buy-out loans	$	151,399	$	22,852	$	59,416	$	139,768	$	44,167,918	$	44,541,353
Early buy-out loans guaranteed by U.S. government agencies (1)	—		45,788		—		—		88,390		134,178
Total loans, net of unearned income	$	151,399	$	68,640	$	59,416	$	139,768	$	44,256,308	$	44,675,531

As of December 31, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	38,940	$	98	$	19,488	$	85,743	$	12,687,784	$	12,832,053
Commercial real estate
Construction and development	2,205		—		251		1,343		2,080,242		2,084,041
Non-construction	33,254		—		8,264		19,291		9,199,314		9,260,123
Home equity	1,341		—		62		2,263		340,310		343,976
Residential real estate, excluding early buy-out loans	15,391		—		2,325		22,942		2,578,425		2,619,083
Premium finance receivables
Property and casualty insurance loans	27,590		20,135		23,236		50,437		6,782,131		6,903,529
Life insurance loans	—		—		16,206		45,464		7,816,273		7,877,943
Consumer and other	22		54		25		165		60,234		60,500
Total loans, net of unearned income, excluding early buy-out loans	$	118,743	$	20,287	$	69,857	$	227,648	$	41,544,713	$	41,981,248
Early buy-out loans guaranteed by U.S. government agencies (1)	—		57,688		250		328		92,317		150,583
Total loans, net of unearned income	$	118,743	$	77,975	$	70,107	$	227,976	$	41,637,030	$	42,131,831

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

As of June 30, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	40,460	$	573	$	22,808	$	48,970	$	12,487,660	$	12,600,471
Commercial real estate
Construction and development	12,536		—		—		766		1,747,134		1,760,436
Non-construction	5,947		—		1,054		13,452		8,827,922		8,848,375
Home equity	1,361		110		316		601		334,586		336,974
Residential real estate, excluding early buy-out loans	13,652		—		7,243		872		2,433,625		2,455,392
Premium finance receivables
Property and casualty insurance loans	19,583		12,785		22,670		32,751		6,674,909		6,762,698
Life insurance loans	6		1,667		3,729		90,117		7,943,754		8,039,273
Consumer and other	4		28		51		146		31,712		31,941
Total loans, net of unearned income, excluding early buy-out loans	$	93,549	$	15,163	$	57,871	$	187,675	$	40,481,302	$	40,835,560
Early buy-out loans guaranteed by U.S. government agencies (1)	117		57,728		918		—		129,085		187,848
Total loans, net of unearned income	$	93,666	$	72,891	$	58,789	$	187,675	$	40,610,387	$	41,023,408

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

Credit Quality Indicators

Credit quality indicators, specifically the Company's internal risk rating systems, reflect how the Company monitors credit losses and represents factors used by the Company when measuring the allowance for credit losses. Descriptions of the Company’s credit quality indicators by financial asset are included in Note (5) “Allowance for Credit Losses” of the 2023 Form 10-K.

The table below shows the Company’s loan portfolio by credit quality indicator and year of origination at June 30, 2024:

	Year of Origination														Revolving		Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Revolving		to Term		Loans
Loan Balances:
Commercial, industrial and other
Pass	$	1,759,369	$	2,462,832	$	1,847,769	$	1,330,074	$	529,579	$	1,099,112	$	4,405,035	$	8,966	$	13,442,736
Special mention	1,704		62,567		69,016		64,001		6,033		51,135		129,899		1,300		385,655
Substandard accrual	2,660		41,267		42,882		40,319		20,026		8,703		119,110		17		274,984
Substandard nonaccrual/doubtful	—		5,950		5,718		21,951		1,237		8,175		7,976		80		51,087
Total commercial, industrial and other	$	1,763,733	$	2,572,616	$	1,965,385	$	1,456,345	$	556,875	$	1,167,125	$	4,662,020	$	10,363	$	14,154,462
Construction and development
Pass	$	78,100	$	475,118	$	973,989	$	371,090	$	79,439	$	159,686	$	22,350	$	—	$	2,159,772
Special mention	—		1,176		14,990		17,091		—		14,969		—		—		48,226
Substandard accrual	—		—		—		1,102		1,777		47,146		—		—		50,025
Substandard nonaccrual/doubtful	—		495		—		—		2,033		—		—		—		2,528
Total construction and development	$	78,100	$	476,789	$	988,979	$	389,283	$	83,249	$	221,801	$	22,350	$	—	$	2,260,551
Non-construction
Pass	$	710,843	$	1,515,024	$	1,757,491	$	1,360,084	$	961,509	$	2,884,404	$	198,713	$	265	$	9,388,333
Special mention	3,364		8,422		37,904		46,765		17,230		46,738		274		—		160,697
Substandard accrual	—		3,202		13,696		9,545		22,983		42,429		—		—		91,855
Substandard nonaccrual/doubtful	—		1,372		453		170		—		43,766		—		—		45,761
Total non-construction	$	714,207	$	1,528,020	$	1,809,544	$	1,416,564	$	1,001,722	$	3,017,337	$	198,987	$	265	$	9,686,646
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	9,272	$	326,705	$	2,737	$	338,714
Special mention	—		—		222		59		120		2,417		6,313		287		9,418
Substandard accrual	—		—		104		—		102		6,242		558		75		7,081
Substandard nonaccrual/doubtful	—		—		511		137		—		363		—		89		1,100
Total home equity	$	—	$	—	$	837	$	196	$	222	$	18,294	$	333,576	$	3,188	$	356,313
Residential real estate
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	380,670		480,911		808,108		754,489		204,797		257,334		—		—		2,886,309

Special mention	—		2,985		5,655		2,284		1,604		6,547		—		—		19,075
Substandard accrual	224		596		3,353		915		1,143		3,344		—		—		9,575
Substandard nonaccrual/doubtful	—		523		5,109		4,642		1,229		6,695		—		—		18,198
Total residential real estate	$	380,894	$	488,777	$	825,606	$	766,143	$	214,473	$	391,442	$	—	$	—	$	3,067,335
Premium finance receivables - property and casualty
Pass	$	5,737,826	$	1,204,432	$	—	$	8,281	$	421	$	—	$	—	$	—	$	6,950,960
Special mention	92,231		19,192		95		8		—		—		—		—		111,526
Substandard accrual	1,488		4,052		1		4		—		—		—		—		5,545
Substandard nonaccrual/doubtful	7,238		25,281		182		19		2		—		—		—		32,722
Total premium finance receivables - property and casualty	$	5,838,783	$	1,252,957	$	278	$	8,312	$	423	$	—	$	—	$	—	$	7,100,753
Premium finance receivables - life
Pass	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Special mention	—		—		—		—		—		—		—		—		—
Substandard accrual	—		—		—		—		—		—		—		—		—
Substandard nonaccrual/doubtful	—		—		—		—		—		—		—		—		—
Total premium finance receivables - life	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Consumer and other
Pass	$	1,562	$	2,602	$	749	$	667	$	46	$	32,764	$	48,721	$	—	$	87,111
Special mention	6		14		11		5		—		140		2		—		178
Substandard accrual	5		14		9		—		—		27		9		—		64
Substandard nonaccrual/doubtful	—		—		1		2		—		—		—		—		3
Total consumer and other	$	1,573	$	2,630	$	770	$	674	$	46	$	32,931	$	48,732	$	—	$	87,356
Total loans
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	9,805,921		12,961,554		5,392,035		3,824,685		1,775,791		4,442,572		5,001,524		11,968		43,216,050
Special mention	97,305		94,356		127,893		130,213		24,987		121,946		136,488		1,587		734,775
Substandard accrual	4,377		49,131		60,045		51,885		46,031		107,891		119,677		92		439,129
Substandard nonaccrual/doubtful	7,238		33,621		11,974		26,921		4,501		58,999		7,976		169		151,399
Total loans	$	9,914,841	$	13,142,424	$	5,595,328	$	4,037,517	$	1,857,010	$	4,848,930	$	5,265,665	$	13,816	$	44,675,531
Gross write offs
Six months ended June 30, 2024	244		29,608		3,464		1,220		2,088		21,973		—		—		58,597

Held-to-maturity debt securities

The Company conducts an assessment of its investment securities, including those classified as held-to-maturity, at the time of purchase and on at least an annual basis to ensure such investment securities remain within appropriate levels of risk and continue to perform satisfactorily in fulfilling its obligations. The Company considers, among other factors, the nature of the securities and credit ratings or financial condition of the issuer. If available, the Company obtains a credit rating for issuers from a Nationally Recognized Statistical Rating Organization (“NRSRO”) for consideration. If no such rating is available for an issuer, the Company performs an internal rating based on the scale utilized within the loan portfolio as discussed above. For purposes of the table below, the Company has converted any issuer rating from an NRSRO into the Company’s internal ratings based on Investment Policy and review by the Company’s management.

As of June 30, 2024	Year of Origination												Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Balance
Amortized Cost Balances:
U.S. government agencies
1-4 internal grade	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
5-7 internal grade													—
8-10 internal grade													—
Total U.S. government agencies	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
Municipal
1-4 internal grade	$	—	$	4,176	$	1,035	$	6,862	$	258	$	151,716	$	164,047
5-7 internal grade	—		—		—		—		—		2,353		2,353
8-10 internal grade													—
Total municipal	$	—	$	4,176	$	1,035	$	6,862	$	258	$	154,069	$	166,400
Mortgage-backed securities
1-4 internal grade	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
5-7 internal grade													—
8-10 internal grade													—
Total mortgage-backed securities	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
Corporate notes
1-4 internal grade	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
5-7 internal grade													—
8-10 internal grade													—
Total corporate notes	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
Total held-to-maturity securities													$	3,756,415
Less: Allowance for credit losses													(491)
Held-to-maturity securities, net of allowance for credit losses													$	3,755,924

Measurement of Allowance for Credit Losses

The Company's allowance for credit losses consists of the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity debt security losses. In accordance with ASC 326, the Company measures the allowance for credit losses at the time of origination or purchase of a financial asset, representing an estimate of lifetime expected credit losses on the related asset. When developing its estimate, the Company considers available information relevant to assessing the collectability of cash flows, from both internal and external sources. Historical credit loss experience is one input in the estimation process as well as inputs relevant to current conditions and reasonable and supportable forecasts. In considering past events, the Company considers the relevance, or lack thereof, of historical information due to changes in such things as financial asset underwriting or collection practices, and changes in portfolio mix due to changing business plans and strategies. In considering current conditions and forecasts, the Company considers both the current economic environment and the forecasted direction of the economic environment with emphasis on those factors deemed relevant to or driving changes in expected credit losses. As significant judgment is required, the review of the appropriateness of the allowance for credit losses is performed quarterly by various committees with participation by the Company's executive management.

	June 30,		December 31,		June 30,
(In thousands)	2024		2023		2023
Allowance for loan losses	$	363,719	$	344,235	$	302,499
Allowance for unfunded lending-related commitments losses	73,350		83,030		84,881
Allowance for loan losses and unfunded lending-related commitments losses	437,069		427,265		387,380
Allowance for held-to-maturity securities losses	491		347		406
Allowance for credit losses	$	437,560	$	427,612	$	387,786

The allowance for credit losses is measured on a collective or pooled basis when similar risk characteristics exist, based upon the segmentation discussed above. The Company utilizes modeling methodologies that estimate lifetime credit loss rates on each pool, including methodologies estimating the probability of default and loss given default on specific segments. Historical credit loss history is adjusted for reasonable and supportable forecasts developed by the Company on a quantitative or qualitative basis and incorporates third party economic forecasts. Reasonable and supportable forecasts consider the macroeconomic factors that are most relevant to evaluating and predicting expected credit losses in the Company's financial assets. Currently, the Company utilizes an eight quarter forecast period using a single macroeconomic scenario provided by a

third party and reviewed within the Company's governance structure. For periods beyond the ability to develop reasonable and supportable forecasts, the Company reverts to historical loss rates at an input level, straight-line over a four quarter reversion period. Expected credit losses are measured over the contractual term of the financial asset with consideration of expected prepayments. Expected extensions, renewals or modifications of the financial asset are considered when the expected extension, renewal or modification is contained within the existing agreement and is not unconditionally cancelable. The methodologies discussed above are applied to both current asset balances on the Company's Consolidated Statements of Condition and off-balance sheet commitments (i.e. unfunded lending-related commitments).

Assets that do not share similar risk characteristics with a pool are assessed for the allowance for credit losses on an individual basis. These typically include assets experiencing financial difficulties, including assets rated as substandard nonaccrual and doubtful. If foreclosure is probable or the asset is considered collateral-dependent, expected credit losses are measured based upon the fair value of the underlying collateral adjusted for selling costs, if appropriate. Underlying collateral across the Company's segments consist primarily of real estate, land and construction assets as well as general business assets of the borrower. As of June 30, 2024, excluding loans carried at fair value, substandard nonaccrual loans totaling $46.6 million in carrying balance had no related allowance for credit losses.

The Company does not measure an allowance for credit losses on accrued interest receivable balances because these balances are written off in a timely manner as a reduction to interest income when assets are placed on nonaccrual status.

Loan portfolios

A summary of activity in the allowance for credit losses, specifically for the loan portfolio (i.e. allowance for loan losses and allowance for unfunded commitment losses), for the three and six months ended June 30, 2024 and June 30, 2023 is as follows:

Three months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	166,518	$	226,052	$	7,191	$	13,701	$	13,330	$	383	$	427,175
Other adjustments	—		—		—		—		(19)		—		(19)
Charge-offs	(9,584)		(15,526)		—		(23)		(9,486)		(137)		(34,756)
Recoveries	950		90		35		8		3,663		24		4,770
Provision for credit losses	24,107		13,112		16		(4,913)		7,258		319		39,899
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069
By measurement method:
Individually measured	$	30,927	$	6,330	$	—	$	32	$	—	$	1	$	37,290
Collectively measured	151,064		217,398		7,242		8,741		14,746		588		399,779
Loans at period end
Individually measured	$	51,087	$	48,289	$	1,100	$	17,807	$	—	$	3	$	118,286
Collectively measured	14,103,375		11,898,908		355,213		2,913,694		15,062,868		87,353		44,421,411
Loans held at fair value	—		—		—		135,834		—		—		135,834

Three months ended June 30, 2023	Commercial		Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)
Allowance for credit losses at beginning of period	$	149,501	$	194,780	$	7,728	$	11,434	$	11,955	$	400	$	375,798
Other adjustments	—		—		—		—		41		—		41
Charge-offs	(5,629)		(8,124)		—		—		(4,653)		(110)		(18,516)
Recoveries	505		25		37		6		890		23		1,486
Provision for credit losses	(1,235)		29,015		(798)		812		813		(36)		28,571
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380
By measurement method:
Individually measured	$	7,205	$	5,819	$	—	$	106	$	—	$	—	$	13,130
Collectively measured	135,937		209,877		6,967		12,146		9,046		277		374,250
Loans at period end
Individually measured	$	40,460	$	18,483	$	1,361	$	13,496	$	—	$	4	$	73,804
Collectively measured	12,560,011		10,590,328		335,613		2,429,297		14,801,971		31,937		40,749,157
Loans held at fair value	—		—		—		200,447		—		—		200,447

Six months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	169,604	$	223,853	$	7,116	$	13,133	$	13,069	$	490	$	427,265
Other adjustments	—		—		—		—		(50)		—		(50)
Charge-offs	(20,799)		(20,995)		(74)		(61)		(16,424)		(244)		(58,597)
Recoveries	1,429		121		64		10		5,190		47		6,861
Provision for credit losses	31,757		20,749		136		(4,309)		12,961		296		61,590
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069

Six months ended June 30, 2023			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	142,769	$	184,352	$	7,573	$	11,585	$	10,671	$	498	$	357,448
Cumulative effect adjustment from the adoption of ASU 2016-13	111		1,356		(33)		(692)		—		(1)		741
Other adjustments	—		—		—		—		45		—		45
Charge-offs	(8,172)		(8,129)		—		—		(9,303)		(263)		(25,867)
Recoveries	897		125		72		10		2,213		55		3,372
Provision for credit losses	7,537		37,992		(645)		1,349		5,420		(12)		51,641
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380

For the three and six months ended June 30, 2024, the Company recognized approximately $39.9 million and $61.6 million of provision for credit losses, respectively, related to loans and lending agreements. The provision for each period was primarily the result of loan growth across a majority of segments coupled with losses experienced in the Commercial, Commercial Real Estate and Premium Finance Receivables portfolios. Uncertainties remain regarding expected economic performance and macroeconomic forecasts utilized in the measurement of the allowance for credit losses as of June 30, 2024. Net charge-offs in the three and six month periods ending June 30, 2024, totaled $30.0 million and $51.7 million, respectively.

Held-to-maturity debt securities

The allowance for credit losses on the Company’s held-to-maturity debt securities is presented as a reduction to the amortized cost basis of held-to-maturity securities on the Company's Consolidated Statements of Condition. For the three and six month period ended June 30, 2024, the Company recognized approximately $162,000 and $144,000, respectively, of provision for credit losses related to held-to-maturity securities. At June 30, 2024, the Company did not identify any held-to-maturity debt securities within its portfolio that would require a charge-off.

Loan Modifications to Borrowers Experiencing Financial Difficulties

The Company’s approach to restructuring or modifying 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. 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.

Restructurings may arise when, 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 other real estate owned (“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. At June 30, 2024, the Company had $161,000 of foreclosed residential real estate properties included within OREO. Further, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $43.8 million and $50.4 million at June 30, 2024 and 2023, respectively.

The tables below presents a summary of the period-end balance of loans to borrowers experiencing financial difficulties during the three and six months ended June 30, 2024 and 2023:

Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Interest Only Payments		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	2,161	0.0	%	$	2,010	$	—	$	—	$	97	$	54
Commercial real estate
Non-construction	340		0.0		21		—		319		—		—
Home equity	—		—		—		—		—		—		—
Residential real estate	81		0.0		81		—		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	2,588	0.0	%	$	2,115	$	3	$	319	$	97	$	54

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	2,161	5	143	34
Commercial real estate
Non-construction	340		13	—	—
Home equity	—		—	—	—
Residential real estate	81		12	—	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	2,588	7	140	34

Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	423	0.0	%	$	—	$	—	$	—	$	423
Commercial real estate
Non-construction	4,376		0.0		—		—		—		4,376
Home equity	—		—		—		—		—		—
Residential real estate	264		0.0		143		—		—		121
Premium finance receivables
Property and casualty insurance loans	—		—		—		—		—		—
Total loans	$	5,063	0.0	%	$	143	$	—	$	—	$	4,920

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	423	41	144	—
Commercial real estate
Non-construction	4,376		39	212	—
Home equity	—		—	—	—
Residential real estate	264		123	262	—
Premium finance receivables
Property and casualty insurance loans	—		—	—	—
Total loans	$	5,063	43	207	—

Six Months Ended June 30, 2024 (Dollars in thousands)	Total (1)		Percentage of Total Class of Loan		Extension of Term (1)		Reduction of  Interest Rate (1)		Interest Only Payments		Delay in Contractual Payments (1)		Extension of Term and Reduction of Interest Rate (1)
Commercial
Commercial, industrial and other	$	3,219	0.0	%	$	2,956	$	—	$	—	$	97	$	166
Commercial real estate
Non-construction	1,469		0.0		293		—		319		857		—
Home equity	89		0.0		89		—		—		—		—
Residential real estate	282		0.0		114		168		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	5,065	0.0	%	$	3,455	$	171	$	319	$	954	$	166

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2024 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	3,219	8	113	34
Commercial real estate
Non-construction	1,469		29	—	16
Home equity	89		12	—	—
Residential real estate	282		19	201	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	5,065	11	156	18

Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	37,897	0.3	%	$	1,938	$	221	$	35,265	$	473
Commercial real estate
Non-construction	5,709		0.1		467		827		39		4,376
Home equity	203		0.1		203		—		—		—
Residential real estate	1,972		0.1		1,396		271		—		305
Premium finance receivables
Property and casualty insurance loans	11		0.0		3		—		—		8
Total loans	$	45,792	0.1	%	$	4,007	$	1,319	$	35,304	$	5,162

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	37,897	15	108	16
Commercial real estate
Non-construction	5,709		40	232	101
Home equity	203		12	—	—
Residential real estate	1,972		57	284	—
Premium finance receivables
Property and casualty insurance loans	11		0	50	—
Total loans	$	45,792	36	223	17

The Company had commitments of $5.1 million and $43.5 million as of June 30, 2024 and June 30, 2023, respectively, to lend additional funds to borrowers experiencing financial difficulty and for whom the Company has modified the terms of loans in the form of principal forgiveness, an interest rate reduction, an other-than insignificant payment delay or a term extension during the periods presented.

The following table presents a summary of all modified loans for borrowers experiencing financial difficulties and such loans that were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	For the Twelve Months Ended June 30, 2024		Three Months Ended June 30, 2024		Six Months Ended June 30, 2024		For the Six Months Ended June 30, 2023		Three Months Ended June 30, 2023		Six Months Ended June 30, 2023
	Total		Payments in  Default  (1)		Payments in  Default  (1)		Total		Payments in  Default  (1)		Payments in  Default  (1)
Commercial
Commercial, industrial and other	$	4,685	$	1,784	$	1,784	$	37,897	$	18,729	$	18,729
Commercial real estate
Construction and development	2,486		—		—		—		—		—
Non-construction	2,644		639		2,443		5,709		923		923
Home equity	586		—		—		203		203		203
Residential real estate	417		384		384		1,972		541		541
Premium finance receivables
Property and casualty insurance loans	18		14		14		11		11		11
Total loans	$	10,836	$	2,821	$	4,625	$	45,792	$	20,407	$	20,407

(1)Modified loans considered to be in payment default are over 30 days past due subsequent to the restructuring.

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Goodwill and Other Acquisition-Related Intangible Assets

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Acquisition-Related Intangible Assets

Goodwill and Other Acquisition-Related Intangible Assets

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

(In thousands)	December 31, 2023		Goodwill Acquired		Impairment Loss		Goodwill Adjustments		June 30, 2024
Community banking	$	545,671	$	—	$	—	$	—	$	545,671
Specialty finance	39,006		—		—		(717)		38,289
Wealth management	71,995		—		—		—		71,995
Total	$	656,672	$	—	$	—	$	(717)	$	655,955

The specialty finance unit’s goodwill decreased $717,000 in the first six months of 2024 as a result of foreign currency translation adjustments related to the Canadian acquisitions.

The Company assesses each reporting unit’s goodwill for impairment on at least an annual basis and considers potential indicators of impairment at each reporting date between annual goodwill impairment tests. At October 1, 2023, the Company utilized a qualitative approach for its annual goodwill impairment tests of the community banking, specialty finance and wealth management reporting units and determined that it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit at that time.

At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. The Company assessed whether events and circumstances resulted in it being more likely than not that the fair value of any reporting unit was less than its carrying value. Potential impairment indicators considered include the condition of the economy and banking industry; government intervention and regulatory updates; the impact of recent events to financial performance and cost factors of the reporting units; performance of the Company’s stock and other relevant events.

At the conclusion of this assessment of all reporting units, the Company determined that as of June 30, 2024, it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit.

A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of June 30, 2024 is as follows:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
Community banking segment:
Core deposit intangibles with finite lives:
Gross carrying amount	$	55,206	$	55,206	$	55,206
Accumulated amortization	(47,666)		(46,125)		(44,432)
Net carrying amount	$	7,540	$	9,081	$	10,774
Trademark with indefinite lives:
Carrying amount	5,800		5,800		5,800
Total net carrying amount	$	13,340	$	14,881	$	16,574
Specialty finance segment:
Customer list intangibles with finite lives:
Gross carrying amount	$	1,961	$	1,963	$	1,963
Accumulated amortization	(1,861)		(1,837)		(1,813)
Net carrying amount	$	100	$	126	$	150
Wealth management segment:
Customer list and other intangibles with finite lives:
Gross carrying amount	$	26,630	$	26,630	$	26,630
Accumulated amortization	(19,463)		(18,748)		(17,701)
Net carrying amount	$	7,167	$	7,882	$	8,929
Total acquisition-related intangible assets:
Gross carrying amount	$	89,597	$	89,599	$	89,599
Accumulated amortization	(68,990)		(66,710)		(63,946)
Total other acquisition-related intangible assets, net	$	20,607	$	22,889	$	25,653

Estimated amortization
Actual in six months ended June 30, 2024	$	2,280
Estimated remaining in 2024	2,021
Estimated—2025	3,482
Estimated—2026	2,772
Estimated—2027	2,156
Estimated—2028	1,591

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. The customer list and other intangibles recognized in connection with prior acquisitions within the wealth management segment are being amortized over a period of up to ten years on a straight-line or accelerated basis. Indefinite-lived intangible assets consist of certain trade and domain names recognized in connection with the acquisition of certain assets of Veterans First Mortgage in 2018. As indefinite-lived intangible assets are not amortized, the Company assesses impairment on at least an annual basis.

Total amortization expense associated with finite-lived acquisition-related intangibles totaled approximately $2.3 million and $2.7 million for the six months ended June 30, 2024 and 2023, respectively.

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Mortgage Servicing Rights ("MSRs")

6 Months Ended

Jun. 30, 2024

Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]

Mortgage Servicing Rights ("MSRs")

Mortgage Servicing Rights (“MSRs”)

The following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the periods indicated:

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
(In thousands)	2024		2023		2024		2023
Fair value at beginning of the period	$	201,044	$	224,470	$	192,456	$	230,225
Additions from loans sold with servicing retained	8,223		8,720		13,602		13,827
Servicing rights sold	—		(30,170)		—		(30,170)
Estimate of changes in fair value due to:
Payoffs, paydowns and repurchases	(5,534)		(5,043)		(9,920)		(8,952)
Changes in valuation inputs or assumptions	877		2,715		8,472		(4,238)
Fair value at end of the period	$	204,610	$	200,692	$	204,610	$	200,692
Unpaid principal balance of mortgage loans serviced for others	$	12,211,027	$	11,752,223

The Company recognizes MSR assets upon the sale of residential real estate loans to external third parties when it retains the obligation to service the loans and the servicing fee is more than adequate compensation. MSRs are included in other assets in the Consolidated Statements of Condition. The initial recognition of MSR assets from loans sold with servicing retained and subsequent changes in fair value of all MSRs are recognized in mortgage banking revenue. MSRs are subject to changes in value from actual and expected prepayment of the underlying loans.

The estimation of fair value related to MSRs is partly impacted by the Company exercising its early buyout options (“EBO”) on eligible loans previously sold to the Government National Mortgage Association (“GNMA”). Under such optional repurchase program, financial institutions acting as servicers are allowed to buy back from the securitized loan pool individual delinquent mortgage loans meeting certain criteria for which the institution was the original transferor of such loans. At the option of the servicer and without prior authorization from GNMA, the servicer may repurchase such delinquent loans for an amount equal to the remaining principal balance of the loan. At the time of such repurchase, any MSR value related to such loans is derecognized.

The MSR asset fair value is determined by using a discounted cash flow model that incorporates the objective characteristics of the portfolio as well as subjective valuation parameters that purchasers of servicing would apply to such portfolios sold into the secondary market. The subjective factors include loan prepayment speeds, discount rates, servicing costs and other economic factors. The Company uses a third party to assist in the valuation of MSRs.

Periodically, the Company will purchase options for the right to purchase securities not currently held within the banks’ investment portfolios or enter into interest rate swaps in which the Company elects not to designate such derivatives as hedging instruments. These option and swap transactions are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s MSRs. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. For more information regarding these hedges outstanding as of June 30, 2024 and June 30, 2023, see Note (14) “Derivative Financial Instruments” in Item 1 of this report.

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Deposits

6 Months Ended

Jun. 30, 2024

Deposits [Abstract]

Deposits

Deposits

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

(Dollars in thousands)	June 30, 2024			December 31, 2023			June 30, 2023
Balance:
Non-interest-bearing	$	10,031,440		$	10,420,401		$	10,604,915
NOW and interest-bearing demand deposits	5,053,909			5,797,649			5,814,836
Wealth management deposits	1,490,711			1,614,499			1,417,984
Money market	16,320,017			15,149,215			14,523,124
Savings	5,882,179			5,790,334			5,321,578
Time certificates of deposit	9,270,770			6,625,072			6,356,270
Total deposits	$	48,049,026		$	45,397,170		$	44,038,707
Mix:
Non-interest-bearing	21		%	23		%	24		%
NOW and interest-bearing demand deposits	11			13			13
Wealth management deposits	3			4			3
Money market	34			33			33
Savings	12			13			12
Time certificates of deposit	19			14			15
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 Wintrust Investments, LLC (“Wintrust Investments”), Chicago Deferred Exchange Company (“CDEC”) and trust and asset management customers of the Company.

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FHLB Advances, Other Borrowings and Subordinated Notes

6 Months Ended

Jun. 30, 2024

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:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
FHLB advances	$	3,176,309	$	2,326,071	$	2,026,071
Other borrowings:
Notes payable	157,024		171,282		185,539
Short-term borrowings	—		13,430		17,773
Secured borrowings	391,395		401,897		401,669
Other	58,160		59,204		60,238
Total other borrowings	606,579		645,813		665,219
Subordinated notes	298,113		437,866		437,628
Total FHLB advances, other borrowings and subordinated notes	$	4,081,001	$	3,409,750	$	3,128,918

Descriptions of the Company’s FHLB advances, other borrowings, and subordinated notes are included in Note (11) “Federal Home Loan Bank Advances”, Note (12) “Subordinated Notes” and Note (13) “Other Borrowings” of the 2023 Form 10-K.

Notes Payable

Notes payable balances represent the balances on the Company’s credit agreement with certain unaffiliated banks. At June 30, 2024, the outstanding principal balance under the term loan facility was $157.0 million and there was no outstanding balance under the revolving credit facility. Borrowings under notes payable 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, 2024, the Company was in compliance with all such covenants.

Short-term Borrowings

Short-term borrowings include securities sold under repurchase agreements of customer sweep accounts in connection with master repurchase agreement at the banks. There were no borrowings at June 30, 2024 compared to $13.4 million and $16.3 million at December 31, 2023 and June 30, 2023, respectively. As of June 30, 2024, the Company had no pledged securities related to its customer balances in sweep accounts.

Secured Borrowings

The balance of secured borrowings primarily represents a third party Canadian transaction (“Canadian Secured Borrowing”). Under the Canadian Secured Borrowing, the Company, through its subsidiary, FIFC Canada, sells an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for cash payments pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). On May 31, 2023, the Company entered into the eleventh amending agreement to the Receivables Purchase Agreement dated as of December 16, 2014. The amended Receivables Purchase Agreement provides for, among other things, an extension of the maturity date to December 15, 2024, an increase to the facility limit from $420 million to $520 million, and a fee rate increase from 0.775% to 0.825%. Additionally, since Canadian Dollar Offered Rate (“CDOR”) ceased being used in Canada in June 2024, references to CDOR changed to the Benchmark rate.

At June 30, 2024, the translated balance of the secured borrowings totaled $380.3 million compared to $392.5 million at December 31, 2023 and $392.4 million at June 30, 2023. The interest rate under the Receivables Purchase Agreement is the Canadian Commercial Paper Rate plus fee rate of 0.825%.

The remaining $11.1 million, $9.4 million and $9.3 million within secured borrowings at June 30, 2024, December 31, 2023 and June 30, 2023, respectively, represent 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.

Other Borrowings

Other borrowings represent a fixed-rate promissory note (“Fixed-Rate Promissory Note”) issued by the Company in June 2017. Subsequent amendments to the Fixed-Rate Promissory Note since issuance increased the principal amount to $66.4 million, reduced the interest rate to 1.70% and extended the maturity date to March 31, 2025. The Fixed-Rate Promissory Note contains several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and indebtedness. At June 30, 2024, the Company was in compliance with all such covenants.

Subordinated Notes

At June 30, 2024, the Company had outstanding subordinated notes totaling $298.1 million compared to $437.9 million and $437.6 million at December 31, 2023 and June 30, 2023, respectively. The notes issued in 2019 have a stated interest rate of 4.85% and mature in June 2029. In the second quarter of 2024, the Company repaid the $140.0 million of subordinated notes issued in 2014. The notes had a stated interest rate of 5.00% and matured in June 2024.

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Junior Subordinated Debentures

6 Months Ended

Jun. 30, 2024

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Junior Subordinated Debentures

Junior Subordinated Debentures

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2024. 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 (1)	Contractual Rate at 6/30/2024		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	S+0.26161+3.25	8.84	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		S+0.26161+2.80	8.39	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		S+0.26161+2.60	8.19	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		S+0.26161+1.95	7.55	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		S+0.26161+1.45	7.04	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		S+0.26161+1.63	7.23	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		S+0.26161+3.00	8.59	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		S+0.26161+1.75	7.35	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		S+0.26161+1.62	7.22	%	06/2007	09/2037	06/2012
Total					$	253,566		7.79	%

(1)The interest rates on the variable rate junior subordinated debentures are based on the three-month Chicago Mercantile Exchange (“CME”) Term Secured Overnight Financing Rate (“SOFR”) and reset on a quarterly basis.

The junior subordinated debentures totaled $253.6 million at June 30, 2024, December 31, 2023 and June 30, 2023. At June 30, 2024, the weighted average contractual interest rate on the junior subordinated debentures was 7.79%.

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Segment Information

6 Months Ended

Jun. 30, 2024

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 (10) “Deposits” in Item 1 of this report 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 table 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 Note (1) “Summary of Significant Accounting Policies” of the 2023 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, 2024		June 30, 2023
Net interest income:
Community Banking	$	358,832	$	346,232	$	12,600	4	%
Specialty Finance	95,191		84,993		10,198		12
Wealth Management	7,928		7,404		524		7
Total Operating Segments	461,951		438,629		23,322		5
Intersegment Eliminations	8,659		8,908		(249)		(3)
Consolidated net interest income	$	470,610	$	447,537	$	23,073	5	%
Provision for credit losses:
Community Banking	$	36,325	$	26,713	$	9,612	36	%
Specialty Finance	3,736		1,801		1,935		107
Wealth Management	—		—		—		—
Total Operating Segments	40,061		28,514		11,547		40
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	40,061	$	28,514	$	11,547	40	%
Non-interest income:
Community Banking	$	71,619	$	68,130	$	3,489	5	%
Specialty Finance	32,317		31,737		580		2
Wealth Management	35,605		33,391		2,214		7
Total Operating Segments	139,541		133,258		6,283		5
Intersegment Eliminations	(18,394)		(20,228)		1,834		(9)
Consolidated non-interest income	$	121,147	$	113,030	$	8,117	7	%
Net revenue:
Community Banking	$	430,451	$	414,362	$	16,089	4	%
Specialty Finance	127,508		116,730		10,778		9
Wealth Management	43,533		40,795		2,738		7
Total Operating Segments	601,492		571,887		29,605		5
Intersegment Eliminations	(9,735)		(11,320)		1,585		(14)
Consolidated net revenue	$	591,757	$	560,567	$	31,190	6	%
Segment profit:
Community Banking	$	91,235	$	102,517	$	(11,282)	(11)	%
Specialty Finance	53,091		46,402		6,689		14
Wealth Management	8,062		5,831		2,231		38
Consolidated net income	$	152,388	$	154,750	$	(2,362)	(2)	%
Segment assets:
Community Banking	$	47,611,508	$	42,452,673	$	5,158,835	12	%
Specialty Finance	11,014,840		10,549,819		465,021		4
Wealth Management	1,155,168		1,283,684		(128,516)		(10)
Consolidated total assets	$	59,781,516	$	54,286,176	$	5,495,340	10	%

NM - Not meaningful

	Six Months Ended				$ Change in Contribution		% Change  in Contribution
(Dollars in thousands)	June 30, 2024		June 30, 2023
Net interest income:
Community Banking	$	722,517	$	716,080	$	6,437	1	%
Specialty Finance	177,473		155,344		22,129		14
Wealth Management	15,686		16,359		(673)		(4)
Total Operating Segments	915,676		887,783		27,893		3
Intersegment Eliminations	19,128		17,749		1,379		8
Consolidated net interest income	$	934,804	$	905,532	$	29,272	3	%
Provision for credit losses:
Community Banking	$	56,717	$	47,812	$	8,905	19	%
Specialty Finance	5,017		3,747		1,270		34
Wealth Management	—		—		—		—
Total Operating Segments	61,734		51,559		10,175		20
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	61,734	$	51,559	$	10,175	20	%
Non-interest income:
Community Banking	$	146,255	$	136,863	$	9,392	7	%
Specialty Finance	59,634		57,527		2,107		4
Wealth Management	94,090		63,688		30,402		48
Total Operating Segments	299,979		258,078		41,901		16
Intersegment Eliminations	(38,252)		(37,279)		(973)		3
Consolidated non-interest income	$	261,727	$	220,799	$	40,928	19	%
Net revenue:
Community Banking	$	868,772	$	852,943	$	15,829	2	%
Specialty Finance	237,107		212,871		24,236		11
Wealth Management	109,776		80,047		29,729		37
Total Operating Segments	1,215,655		1,145,861		69,794		6
Intersegment Eliminations	(19,124)		(19,530)		406		(2)
Consolidated net revenue	$	1,196,531	$	1,126,331	$	70,200	6	%
Segment profit:
Community Banking	$	211,282	$	236,749	$	(25,467)	12	%
Specialty Finance	95,614		83,139		12,475		4
Wealth Management	32,786		15,060		17,726		(10)
Consolidated net income	$	339,682	$	334,948	$	4,734	10	%

NM - Not meaningful

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2024

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 or commodity price) 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 collars 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; (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; and (5) options and swaps to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The Company also enters into derivatives (typically interest rate swaps and commodity forward contracts) 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 accumulated other comprehensive income or loss 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.

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 are recorded as a component of accumulated other comprehensive income or loss, 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 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. Commodity derivative fair values are computed based on changes in the price per unit 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, 2024, December 31, 2023 and June 30, 2023:

	Derivative Assets						Derivative Liabilities
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	7,532	$	40,116	$	2,154	$	96,825	$	44,456	$	121,347
Interest rate derivatives designated as Fair Value Hedges	12,678		12,349		16,255		—		273		—
Total derivatives designated as hedging instruments under ASC 815	$	20,210	$	52,465	$	18,409	$	96,825	$	44,729	$	121,347
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	215,275	$	211,490	$	261,205	$	217,157	$	210,397	$	261,066
Interest rate lock commitments	4,795		4,511		3,487		67		—		172
Forward commitments to sell mortgage loans	102		—		2,769		597		5,212		38
Commodity forward contracts	702		888		434		304		609		214
Foreign exchange contracts	2,776		6,372		8,444		2,709		6,308		8,335
Total derivatives not designated as hedging instruments under ASC 815	$	223,650	$	223,261	$	276,339	$	220,834	$	222,526	$	269,825
Total Derivatives	$	243,860	$	275,726	$	294,748	$	317,659	$	267,255	$	391,172

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 collars as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts to or from a counterparty in exchange for the Company receiving or paying fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate collars designated as cash flow hedges involve the settlement of amounts in which the interest rate index specified in the contract exceeds the agreed upon cap strike rate or in which the interest rate index specified in the contract is below the agreed upon floor strike rate at the end of each period.

As of June 30, 2024, the Company had various interest rate collar and swap derivatives designated as cash flow hedges of variable rate loans. When the relationship between the hedged item and hedging instrument is highly effective at achieving offsetting changes in cash flows attributable to the hedged risk, changes in the fair value of these cash flow hedges are recorded in accumulated other comprehensive income or loss and are subsequently reclassified to interest income as interest payments

are made on such variable rate loans. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income.

The table below provides details on these cash flow hedges, summarized by derivative type and maturity, as of June 30, 2024:

	June 30, 2024
	Notional		Fair Value
(In thousands)	Amount		Asset (Liability)
Interest Rate Collars at 1-month CME term SOFR:
Buy 2.250% floor, sell 3.743% cap; matures September 2025	$	1,250,000	$	(16,589)
Buy 2.750% floor, sell 4.320% cap; matures October 2026	500,000		(4,740)
Buy 2.000% floor, sell 3.450% cap; matures September 2027	1,250,000		(37,289)
Interest Rate Swaps at 1-month CME term SOFR:
Fixed 3.748%; matures December 2025	250,000		(3,114)
Fixed 3.759%; matures December 2025	250,000		(3,075)
Fixed 3.680%; matures February 2026	250,000		(3,735)
Fixed 4.176%; matures March 2026	250,000		(1,773)
Fixed 3.915%; matures March 2026	250,000		(2,826)
Fixed 4.450%; matures July 2026	250,000		(206)
Fixed 3.515%, matures December 2026	250,000		(4,597)
Fixed 3.512%; matures December 2026	250,000		(4,614)
Fixed 3.453%; matures February 2027	250,000		(5,369)
Fixed 4.150%; matures July 2027	250,000		(591)
Fixed 3.748%; matures March 2028	250,000		(3,203)
Fixed 3.526%; matures March 2028	250,000		(5,104)
Fixed 3.993%; matures October 2029	100,000		444
Fixed 3.993%; matures October 2029	250,000		1,111
Fixed 4.245%; matures November 2029	175,000		2,988
Fixed 4.245%; matures November 2029	175,000		2,988
Total Cash Flow Hedges	$	6,700,000	$	(89,294)

In the first quarter of 2022, the Company terminated interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $1.0 billion and a five-year term effective July 2022. At the time of termination, the fair value of the derivative contracts totaled an asset of $66.5 million, with such adjustments to fair value recorded in accumulated other comprehensive income or loss. In the second quarter of 2022, the Company terminated two additional interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $500.0 million each effective since April 2020. The remaining terms of such derivative contracts were through March 2023 and April 2024 and, at the time of termination, the fair value of the derivative contracts totaled assets of $3.7 million and $10.7 million, respectively, with such adjustments to fair value recorded in accumulated other comprehensive income or loss. In the fourth quarter of 2022, the Company terminated one additional interest rate collar derivative contract designated as a cash flow hedge of a term borrowing facility with a total notional value of $64.3 million effective since September 2018. The remaining term of such derivative contract was through September 2023 and, at the time of termination, the fair value of the derivative contract totaled an asset of $875,000, with such adjustments to fair value recorded in accumulated other comprehensive income or loss.

For all such terminations, as the hedged forecasted transactions (interest payments on variable rate deposits and a term borrowing facility) are still expected to occur over the remaining term of such terminated derivatives, such adjustments will remain in accumulated other comprehensive income or loss and be reclassified as a reduction to interest expense on a straight-line basis over the original term of the terminated derivative contracts.

A rollforward of the amounts in accumulated other comprehensive income or loss related to interest rate derivatives designated as cash flow hedges, including such derivative contracts terminated during the period, follows:

	Three Months Ended				Six Months Ended
(In thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Unrealized gain at beginning of period	$	(38,553)	$	44,692	$	43,538	$	10,026
Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings	20,524		14,267		40,342		18,014
Amount of loss recognized in other comprehensive income or loss	(31,367)		(120,698)		(133,276)		(89,779)
Unrealized (loss) gain at end of period	$	(49,396)	$	(61,739)	$	(49,396)	$	(61,739)

As of June 30, 2024, the Company estimated that during the next 12 months $60.6 million will be reclassified from accumulated other comprehensive income or loss as a decrease to net interest income. Such estimate consists of $13.3 million reclassified as a reduction to interest expense on the terminated cash flow hedges discussed above and $73.9 million reclassified as a reduction to interest income related to the interest rate collars and swaps noted above that remain outstanding.

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, 2024, the Company had 13 interest rate swaps with an aggregate notional amount of $213.1 million that were designated as fair value hedges primarily associated with fixed rate commercial and industrial and commercial real estate loans as well as life insurance premium finance receivables.

For derivatives designated and that qualify as fair value hedges, the net gain or loss from the entire change in the fair value of the derivative instrument is recognized in the same income statement line item as the earnings effect, including the net gain or loss, of the hedged item (interest income earned on fixed rate loans) when the hedged item affects earnings.

The following table presents the carrying amount of the hedged assets/(liabilities) and the cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets/(liabilities) that are designated as a fair value hedge accounting relationship as of June 30, 2024:

(In thousands)		June 30, 2024
Derivatives in Fair Value Hedging Relationships	Location in the Statement of Condition	Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued
Interest rate swaps	Loans, net of unearned income	$	199,732	$	(12,684)	$	(69)
	Available-for-sale debt securities	672		(18)		—

The following table presents the loss or gain recognized related to derivative instruments that are designated as fair value hedges for the respective period:

(In thousands) Derivatives in Fair Value Hedging Relationships	Location of (Loss)/Gain Recognized in Income on Derivative	Three Months Ended		Six Months Ended
		June 30, 2024		June 30, 2024
Interest rate swaps	Interest and fees on loans	$	(16)	$	(6)
	Interest income - investment securities	—		—

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—Periodically, the Company may purchase interest rate cap derivatives designed to act as an economic hedge of the risk of the negative impact on its fixed-rate loan portfolios from rising interest rates. As of June 30, 2024, there were no interest rate caps outstanding that were designed to act as an economic hedge.

Additionally, 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 other non-interest income. At June 30, 2024 and December 31, 2023, the Company had interest rate derivative transactions with an aggregate notional amount of approximately $12.2 billion and $11.4 billion, respectively, (all interest rate swaps and caps with customers and third parties) related to this program. At June 30, 2024 these interest rate derivatives had maturity dates ranging from July 2024 to January 2037.

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 its 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, 2024 and December 31, 2023, the Company had interest rate lock commitments with an aggregate notional amount of approximately $237.9 million and $129.9 million, and forward commitments to sell mortgage loans with an aggregate notional amount of approximately $641.3 million and $626.9 million, respectively. 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.

Commodity Derivatives—The Company has commodity forward contracts resulting from a service the Company provides to certain qualified borrowers. The Company’s banking subsidiaries execute certain derivative products directly with qualified commercial borrowers to facilitate their respective risk management strategies. For example, these arrangements allow the Company’s commercial borrowers to effectively purchase or sell a given commodity at an agreed-upon price on an agreed-upon settlement date. 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 other non-interest income. At June 30, 2024 and December 31, 2023, the Company had commodity derivative transactions with an aggregate notional amount of approximately $12.6 million and $8.4 million, respectively, (all forward contracts with customers and third parties) related to this program. At June 30, 2024, these commodity derivatives had maturity dates ranging from July 2024 to October 2025.

Foreign Currency Derivatives—The Company has foreign currency derivative contracts resulting from a service the Company provides to certain qualified customers. The Company’s banking subsidiaries execute certain derivative products directly with qualified customers to facilitate their respective risk management strategies related to foreign currency fluctuations. For example, these arrangements allow the Company’s customers to effectively exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. 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 other non-interest income. As of June 30, 2024 and December 31, 2023, the Company held foreign currency derivatives with an aggregate notional amount of approximately $138.8 million and $144.3 million, respectively.

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 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 the fair value of these contracts are recognized as other non-interest income. There were no covered call options outstanding as of June 30, 2024, December 31, 2023 or June 30, 2023.

Periodically, the Company will purchase options for the right to purchase securities not currently held within the banks’ investment portfolios or enter into interest rate swaps in which the Company elects to not designate such derivatives as hedging instruments. These option and swap transactions are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts are included in mortgage banking revenue. The Company held six interest rate derivatives with an aggregate notional value of $170.0 million at June 30, 2024 and four interest rate derivatives with an aggregate notional value of and $195.0 million at December 31, 2023, for such purpose of economically hedging a portion of the fair value adjustment related to its mortgage servicing rights portfolio.

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

(In thousands)		Three Months Ended				Six Months Ended
Derivative	Location in income statement	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Interest rate swaps and caps	Trading gains, net	$	(102)	$	12	$	493	$	812
Mortgage banking derivatives	Mortgage banking revenue	3,721		4,791		3,706		8,431
Commodity contracts	Trading gains, net	130		49		398		226
Foreign exchange contracts	Trading gains, net	11		—		19		—
Covered call options	Fees from covered call options	2,056		2,578		6,903		12,969
Derivative contract held as economic hedge on MSRs	Mortgage banking revenue	(772)		(726)		(3,349)		220

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, 2024, there were no interest rate derivatives in a net liability position that were subject to such agreements. The fair value of such derivatives includes accrued interest related to these agreements. If the Company had breached any of these provisions and those derivatives subject to such agreements were in a liability position, 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 table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Gross Amounts Recognized	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Less: Amounts offset in the Statements of Condition	—		—		—		—		—		—
Net amount presented in the Statements of Condition	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Gross amounts not offset in the Statements of Condition
Offsetting Derivative Positions	(114,662)		(76,514)		(125,159)		(114,662)		(76,514)		(125,159)
Collateral Posted	(85,762)		(144,899)		(145,735)		—		—		—
Net Credit Exposure	$	35,061	$	42,542	$	8,720	$	199,320	$	178,612	$	257,254

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Fair Values of Assets and Liabilities

6 Months Ended

Jun. 30, 2024

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 inputs 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. The 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 debt securities, trading account securities and equity securities with readily determinable fair value—Fair values for available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value 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 determine the fair value of these securities. 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 fair value of U.S. Treasury securities and certain equity securities with readily determinable fair value are based on unadjusted quoted prices in active markets for identical securities. As such, these securities are classified as Level 1 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale debt 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, 2024, the Company classified $95.8 million of municipal securities as Level 3. These municipal securities are bond issues for various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated investment debt security, the Investment Operations Department references a rated, 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). For bond issues without comparable bond proxies, a rating of “BBB” was assigned. In the second quarter of 2024, all of the ratings derived by the Investment Operations Department using the above process were “BBB” or better. The fair value measurement noted above 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, 2024 are 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.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

At June 30, 2024, the Company classified $40.5 million of certain delinquent mortgage loans held-for-sale as Level 3. For such delinquent loans in which investor interest may be limited, the Company estimates fair value by discounting future scheduled cash flows for the specific loan through its life, adjusted for estimated credit losses. The Company uses a discount rate based on prevailing market coupon rates on loans with similar characteristics. The assumed weighted average discount rate used as an input to value these loans at June 30, 2024 was 6.83%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, the weighted average credit discount used as an input to value the specific loans was 0.36% with credit loss discount ranging from 0%-13% at June 30, 2024.

Loans held-for-investment—The fair value for certain loans in which the Company previously 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 prepayment or life assumptions. These loans primarily consist of early buyout loans guaranteed by U.S. government agencies that are delinquent and, as a result, investor interest may be limited. The Company uses a discount rate based on the actual coupon rate of the underlying loan. At June 30, 2024, the Company classified $45.7 million of loans held-for-investment carried at fair value as Level 3. The assumed weighted average discount rate used as an input to value these loans at June 30, 2024 was 6.83%. 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 average life as well as credit losses. The weighted average prepayments speed used as an input to value current loans was 7.86% at June 30, 2024. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation. For delinquent loans in which performance is not assumed and there is a higher probability of resolution of the loan ending in foreclosure, the weighted average life of such loans was 5.9 years. Average life is inversely related to the fair value of these loans as an increase in estimated life results in a decreased valuation. Additionally, the weighted average credit discount used as an input to value the specific loans was 1.10% with credit loss discounts ranging from 0%-17% at June 30, 2024.

MSRs—Fair value for MSRs is determined utilizing a valuation model which calculates the fair value of each servicing right based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing right, given current market conditions. At June 30, 2024, the Company classified $204.6 million of MSRs as Level 3. The weighted average discount rate used as an input to value the pool of MSRs at June 30, 2024 was 10.98% with discount rates applied ranging from 1%-36%. 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 ranged from 0%-90% or a weighted average prepayment speed of 7.86%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $77 and $361, 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. See Note (9) “Mortgage Servicing Rights (“MSRs”)” in Item 1 of this report for further discussion of MSRs.

Derivative instruments—The Company’s derivative instruments include interest rate swaps, caps and collars, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans, commodity future contracts and foreign currency contracts. Interest rate swaps, caps and collars and commodity future contracts are valued by a third party, using models that primarily use market observable inputs, such as yield curves and commodity prices prevailing at the measurement date, and are classified as Level 2 in the fair value hierarchy. 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, 2024, the Company classified $4.8 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, 2024 was 81.17% with pull-through rates applied ranging from 4% 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. These assets are classified as Level 2 in the fair value hierarchy.

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

	June 30, 2024
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	102,712	$	102,712	$	—	$	—
U.S. government agencies	45,192		—		45,192		—
Municipal	146,608		—		50,816		95,792
Corporate notes	77,975		—		77,975		—
Mortgage-backed	3,957,470		—		3,957,470		—
Trading account securities	4,134		—		4,134		—
Equity securities with readily determinable fair value	112,173		104,107		8,066		—
Mortgage loans held-for-sale	411,851		—		371,306		40,545
Loans held-for-investment	135,834		—		90,113		45,721
MSRs	204,610		—		—		204,610
Nonqualified deferred compensation assets	16,041		—		16,041		—
Derivative assets	243,860		—		239,065		4,795
Total	$	5,458,460	$	206,819	$	4,860,178	$	391,463
Derivative liabilities	$	317,659	$	—	$	317,659	$	—

	December 31, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	6,968	$	6,968	$	—	$	—
U.S. government agencies	45,124		—		45,124		—
Municipal	140,958		—		54,721		86,237
Corporate notes	76,531		—		76,531		—
Mortgage-backed	3,233,334		—		3,233,334		—
Trading account securities	4,707		—		4,707		—
Equity securities with readily determinable fair value	139,268		131,202		8,066		—
Mortgage loans held-for-sale	292,722		—		265,887		26,835
Loans held-for-investment	155,261		—		94,591		60,670
MSRs	192,456		—		—		192,456
Nonqualified deferred compensation assets	15,238		—		15,238		—
Derivative assets	275,726		—		271,216		4,510
Total	$	4,578,293	$	138,170	$	4,069,415	$	370,708
Derivative liabilities	$	267,255	$	—	$	267,255	$	—

	June 30, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	74,275		—		74,275		—
Municipal	167,411		—		53,256		114,155
Corporate notes	72,060		—		72,060		—
Mortgage-backed	3,178,735		—		3,178,735		—
Trading account securities	3,027		—		3,027		—
Equity securities with readily determinable fair value	116,275		108,209		8,066		—
Mortgage loans held-for-sale	338,728		—		309,322		29,406
Loans held-for-investment	193,953		—		132,830		61,123
MSRs	200,692		—		—		200,692
Nonqualified deferred compensation assets	14,796		—		14,796		—
Derivative assets	294,748		—		291,261		3,487
Total	$	4,654,700	$	108,209	$	4,137,628	$	408,863
Derivative liabilities	$	391,172	$	—	$	391,172	$	—

The aggregate remaining contractual principal balance outstanding as of June 30, 2024, December 31, 2023 and June 30, 2023 for mortgage loans held-for-sale measured at fair value under ASC 825 was $414.1 million, $291.7 million and $345.7 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $411.9 million, $292.7 million and $338.7 million, for the same respective periods, as shown in the above tables. At June 30, 2024, $2.1 million of mortgage loans held-for-sale were classified as nonaccrual compared to $649,000 as of December 31, 2023 and $582,000 as of June 30, 2023. Additionally, there were $39.4 million of loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio as of June 30, 2024 compared to $26.6 million as of December 31, 2023 and $29.6 million as of June 30, 2023. All of the nonaccrual loans and loans past due greater than 90 days and still accruing within the mortgage loans held-for-sale portfolio at June 30, 2024, December 31, 2023, and June 30, 2023 were individual delinquent mortgage loans bought back from GNMA at the unconditional option of the Company as servicer for those loans.

The aggregate remaining contractual principal balance outstanding as of June 30, 2024, December 31, 2023 and June 30, 2023 for loans held-for-investment measured at fair value under ASC 825 was $136.1 million, $156.9 million and $196.6 million, respectively, while the aggregate fair value of loans held-for-investment was $135.8 million, $155.3 million and $194.0 million, respectively, as shown in the above tables.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and six months ended June 30, 2024 and 2023 are summarized as follows:

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2024	$	88,219	$	33,726	$	49,317	$	201,044	$	6,212
Total net (losses) gains included in:
Net income (1)	—		205		66		3,566		(1,417)
Other comprehensive income or loss	(680)		—		—		—		—
Purchases	9,682		—		—		—		—
Settlements	(1,429)		(10,269)		(7,709)		—		—
Net transfers into Level 3	—		16,883		4,047		—		—
Balance at June 30, 2024	$	95,792	$	40,545	$	45,721	$	204,610	$	4,795

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2023	$	112,257	$	44,250	$	69,493	$	224,470	$	5,356
Total net (losses) gains included in:
Net income (1)	—		402		(619)		6,392		(1,869)
Other comprehensive income or loss	(3,161)		—		—		—		—
Purchases	6,978		—		—		—		—
Sales	—		—		—		(30,170)		—
Settlements	(1,919)		(23,973)		(16,593)		—		—
Net transfers into Level 3	—		8,727		8,842		—		—
Balance at June 30, 2023	$	114,155	$	29,406	$	61,123	$	200,692	$	3,487

(1)Changes in the balance of mortgage loans held-for-sale, MSRs, and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Also, the Company may be required, from time to time, to measure certain other assets at fair value on a non-recurring 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 non-recurring 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, 2024:

	June 30, 2024								Three Months Ended June 30, 2024 Fair Value Losses Recognized, net		Six Months Ended June 30, 2024 Fair Value Losses Recognized, net
(In thousands)	Total		Level 1		Level 2		Level 3
Individually assessed loans - foreclosure probable and collateral-dependent	$	118,286	$	—	$	—	$	118,286	$	25,113	$	41,839
Other real estate owned (1)	19,731		—		—		19,731		—		207
Total	$	138,017	$	—	$	—	$	138,017	$	25,113	$	42,046

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

Individually assessed loans—In accordance with ASC 326, the allowance for credit losses for loans and other financial assets held at amortized cost should be measured on a collective or pooled basis when such assets exhibit similar risk characteristics. In instances in which a financial asset does not exhibit similar risk characteristics to a pool, the Company is required to measure such allowance for credit losses on an individual asset basis. For the Company’s loan portfolio, nonaccrual loans are considered to not exhibit similar risk characteristics as pools and thus are individually assessed. Credit losses are 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. Individually assessed loans are considered a fair value measurement where an allowance for credit loss is established based on the fair value of collateral. Appraised values on relevant real estate properties, which may require adjustments to market-based valuation inputs, are generally used on foreclosure probable and collateral-dependent loans within the real estate portfolios.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs of individually assessed loans. For more information on individually assessed loans refer to Note (7) “Allowance for Credit Losses” in Item 1 of this report. At June 30, 2024, the Company had $118.3 million of individually assessed loans classified as Level 3. All of the $118.3 million of individually assessed loans were measured at fair value based on the underlying collateral of the loan as shown in the table above.

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 other real estate owned. At June 30, 2024, the Company had $19.7 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, 2024 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	$	95,792	Bond pricing	Equivalent rating	BBB-AA+	N/A			Increase
Mortgage loans held-for-sale	40,545		Discounted cash flows	Discount rate	6.83%	6.83%			Decrease
				Credit discount	0% - 13%	0.36%			Decrease
Loans held-for-investment	45,721		Discounted cash flows	Discount rate	6.75% - 6.83%	6.83%			Decrease
				Credit discount	0% - 17%	1.10%			Decrease
				Constant prepayment rate (CPR) - current loans	7.86%	7.86%			Decrease
				Average life - delinquent loans (in years)	1.2 years - 10.6 years	5.9 years			Decrease
MSRs	204,610		Discounted cash flows	Discount rate	1% - 36%	10.98%			Decrease
				Constant prepayment rate (CPR)	0% - 90%	7.86%			Decrease
				Cost of servicing	$70 - $200	$	77		Decrease
				Cost of servicing - delinquent	$200 - 1,000	$	361		Decrease
Derivatives	4,795		Discounted cash flows	Pull-through rate	4% - 100%	81.17		%	Increase
Measured at fair value on a non-recurring basis:
Individually assessed loans - foreclosure probable and collateral-dependent	118,286		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%			Decrease
Other real estate owned	19,731		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, 2024				At December 31, 2023				At June 30, 2023
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(In thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	415,524	$	415,524	$	423,464	$	423,464	$	513,917	$	513,917
Interest-bearing deposits with banks	2,824,314		2,824,314		2,084,323		2,084,323		2,163,708		2,163,708
Available-for-sale securities	4,329,957		4,329,957		3,502,915		3,502,915		3,492,481		3,492,481
Held-to-maturity securities	3,755,924		3,060,467		3,856,916		3,215,468		3,564,473		2,887,891
Trading account securities	4,134		4,134		4,707		4,707		3,027		3,027
Equity securities with readily determinable fair value	112,173		112,173		139,268		139,268		116,275		116,275
FHLB and FRB stock, at cost	256,495		256,495		205,003		205,003		195,117		195,117
Brokerage customer receivables	13,682		13,682		10,592		10,592		15,722		15,722
Mortgage loans held-for-sale, at fair value	411,851		411,851		292,722		292,722		338,728		338,728
Loans held-for-investment, at fair value	135,834		135,834		155,261		155,261		193,953		193,953
Loans held-for-investment, at amortized cost	44,539,697		43,461,319		41,976,570		41,090,010		40,829,455		40,142,976
Nonqualified deferred compensation assets	16,041		16,041		15,238		15,238		14,796		14,796
Derivative assets	243,860		243,860		275,726		275,726		294,748		294,748
Accrued interest receivable and other	505,504		505,504		477,832		477,832		434,553		434,553
Total financial assets	$	57,564,990	$	55,791,155	$	53,420,537	$	51,892,529	$	52,170,953	$	50,807,892
Financial Liabilities
Non-maturity deposits	$	38,778,256	$	38,778,256	$	38,772,098	$	38,772,098	$	37,682,437	$	37,682,437
Time certificates of deposit	9,270,770		9,248,374		6,625,072		6,603,746		6,356,270		6,300,161
FHLB advances	3,176,309		3,195,138		2,326,071		2,367,107		2,026,071		2,072,317
Other borrowings	606,579		605,305		645,813		643,755		665,219		662,156
Subordinated notes	298,113		273,666		437,866		413,501		437,628		405,762
Junior subordinated debentures	253,566		253,571		253,566		253,579		253,566		253,562
Derivative liabilities	317,659		317,659		267,255		267,255		391,172		391,172
Accrued interest payable	66,373		66,373		51,116		51,116		45,359		45,359
Total financial liabilities	$	52,767,625	$	52,738,342	$	49,378,857	$	49,372,157	$	47,857,722	$	47,812,926

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, 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, municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area and southern Wisconsin and mortgage-backed securities. 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 generally categorized these held-to-maturity securities as a Level 2 fair value measurement. Fair values for certain other held-to-maturity securities are based on the bond pricing methodology discussed previously related to certain available-for-sale securities. In accordance with ASC 820, the Company has categorized these held-to-maturity securities as a Level 3 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). The fair value for 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 category. In accordance with ASC 820, the Company has categorized these loans as a Level 3 fair value measurement.

Time certificates of deposit. The fair value of time 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 time certificates of deposit. In accordance with ASC 820, the Company has categorized time certificates of deposit as a Level 3 fair value measurement.

FHLB advances. The fair value of FHLB advances is estimated by 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, 2024

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

As of June 30, 2024, approximately 662,000 shares were available for future grants, assuming the maximum number of shares are issued for the performance awards outstanding, approved under the Company Stock Incentive Plans (“the Plans”). Descriptions of the Plans are included in Note (18) “Stock Compensation Plans and Other Employee Benefit Plans” of the 2023 Form 10-K.

Stock-based compensation expense recognized in the Consolidated Statements of Income was $9.0 million in the second quarter of 2024 and $8.1 million in the second quarter of 2023, and $18.1 million and $16.4 million in the six months ended June 30, 2024 and 2023, respectively.

A summary of the Plans’ stock option activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2024	13,100	$	42.76
Granted	—	—
Exercised	(775)	32.26
Forfeited or canceled	—	—
Outstanding at June 30, 2024	12,325	$	43.42	4.0	$	680
Exercisable at June 30, 2024	12,325	$	43.42	4.0	$	680

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2023	68,093	$	41.14
Granted	—	—
Exercised	(54,218)	40.87
Forfeited or canceled	—	—
Outstanding at June 30, 2023	13,875	$	42.18	4.5	$	422
Exercisable at June 30, 2023	13,875	$	42.18	4.5	$	422

(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 aggregate intrinsic value of options exercised during the six months ended June 30, 2024 and June 30, 2023, was approximately $50,000 and $2.5 million, respectively. Cash received from option exercises under the Plans for the six months ended June 30, 2024 and June 30, 2023 was approximately $25,000 and $2.2 million, respectively.

A summary of the Plans’ restricted share activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Restricted Shares	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	746,123	$	79.60	610,155	$	73.21
Granted	389,198	99.50		260,173	88.29
Vested and issued	(228,719)	69.54		(103,161)	64.08
Forfeited or canceled	(7,893)	91.47		(7,638)	82.82
Outstanding at June 30	898,709	$	90.68	759,529	$	79.52
Vested, but deferred, at June 30	99,844	$	53.98	98,247	$	53.35

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Performance-based Stock	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	553,026	$	79.69	545,379	$	70.30
Granted	96,952	58.78		186,313	92.45
Added by performance factor at vesting	111,304	100.44		23,161	63.64
Vested and issued	(295,644)	58.69		(178,203)	63.64
Forfeited or canceled	(3,154)	95.94		(7,909)	82.73
Outstanding at June 30	462,484	$	93.61	568,741	$	79.20
Vested, but deferred, at June 30	21,593	$	43.95	36,438	$	44.99

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Accumulated Other Comprehensive Income or Loss and Earnings Per Share

Accumulated Other Comprehensive Income or Loss and Earnings Per Share

Accumulated Other Comprehensive Income or Loss

The following tables summarize the components of other comprehensive income or loss, including the related income tax effects, and the related amount reclassified to net income for the periods presented:

(In thousands)	Accumulated Unrealized (Losses) Gains on Securities		Accumulated Unrealized Gains (Losses) on Derivative Instruments		Accumulated Foreign Currency Translation Adjustments		Total Accumulated Other Comprehensive (Loss) Income
Balance at April 1, 2024	$	(408,002)	$	(28,329)	$	(48,817)	$	(485,148)
Other comprehensive loss during the period, net of tax, before reclassifications	(15,275)		(23,070)		(2,905)		(41,250)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(885)		15,095		—		14,210
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(10)		—		—		(10)
Net other comprehensive (loss) during the period, net of tax	$	(16,170)	$	(7,975)	$	(2,905)	$	(27,050)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)
Balance at January 1, 2024	$	(350,697)	$	32,049	$	(42,583)	$	(361,231)
Other comprehensive loss during the period, net of tax, before reclassifications	(72,562)		(98,024)		(9,139)		(179,725)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(866)		29,671		—		28,805
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(47)		—		—		(47)
Net other comprehensive loss during the period, net of tax	$	(73,475)	$	(68,353)	$	(9,139)	$	(150,967)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)

Balance at April 1, 2023	$	(351,995)	$	32,809	$	(48,250)	$	(367,436)
Other comprehensive income during the period, net of tax, before reclassifications	(33,909)		(88,533)		5,344		(117,098)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(1)		10,465		—		10,464
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(20)		—		—		(20)
Net other comprehensive income during the period, net of tax	$	(33,930)	$	(78,068)	$	5,344	$	(106,654)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)
Balance at January 1, 2023	$	(386,057)	$	7,381	$	(48,960)	$	(427,636)
Other comprehensive loss during the period, net of tax, before reclassifications	594		(65,854)		6,054		(59,206)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(410)		13,214		—		12,804
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(52)		—		—		(52)
Net other comprehensive loss during the period, net of tax	$	132	$	(52,640)	$	6,054	$	(46,454)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)

(In thousands)	Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the
Details Regarding the Component of Accumulated Other Comprehensive Income (Loss)	Three Months Ended				Six Months Ended				Impacted Line on the Consolidated Statements of Income
	June 30,				June 30,
	2024		2023		2024		2023
Accumulated unrealized gains on securities
Gains included in net income	$	1,204	$	2	$	1,178	$	562	(Losses) gains on investment securities, net
	1,204		2		1,178		562		Income before taxes
Tax effect	(319)		(1)		(312)		(152)		Income tax expense
Net of tax	$	885	$	1	$	866	$	410	Net income
Accumulated unrealized gains on derivative instruments
Amount reclassified to interest income on loans	$	23,849	$	18,661	$	48,324	$	27,733	Interest on Loans
Amount reclassified to interest expense on deposits	$	(3,325)	$	(4,657)	$	(7,982)	$	(10,245)	Interest on deposits
Amount reclassified to interest expense on other borrowings	—		263		—		526		Interest on other borrowings
	(20,524)		(14,267)		(40,342)		(18,014)		Income before taxes
Tax effect	5,429		3,802		10,671		4,800		Income tax expense
Net of tax	$	(15,095)	$	(10,465)	$	(29,671)	$	(13,214)	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
(Dollars in thousands, except per share data)		June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Net income		$	152,388	$	154,750	$	339,682	$	334,948
Less: Preferred stock dividends		6,991		6,991		13,982		13,982
Net income applicable to common shares	(A)	$	145,397	$	147,759	$	325,700	$	320,966
Weighted average common shares outstanding	(B)	61,839		61,192		61,660		61,072
Effect of dilutive potential common shares
Common stock equivalents		926		902		901		933
Weighted average common shares and effect of dilutive potential common shares	(C)	62,765		62,094		62,561		62,005
Net income per common share:
Basic	(A/B)	$	2.35	$	2.41	$	5.28	$	5.26
Diluted	(A/C)	$	2.32	$	2.38	$	5.21	$	5.18

Potentially dilutive common shares can result from stock options, restricted stock unit awards 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 of inclusion would either reduce the loss per share or increase the income per share.

At the January 2024 meeting of the board of directors of the Company (the “Board of Directors”), a quarterly cash dividend of $0.45 per share ($1.80 on an annualized basis) was declared. It was paid on February 22, 2024 to shareholders of record as of February 8, 2024. At the April 2024 meeting of the Board of Directors, a quarterly cash dividend of $0.45 per share ($1.80 on an annualized basis) was declared. It was paid on May 23, 2024 to shareholders of record as of May 9, 2024.

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Subsequent Events	6 Months Ended
	Jun. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn August 1, 2024, the Company completed its previously announced acquisition of Macatawa Bank Corporation (“Macatawa”), the parent company of Macatawa Bank. In conjunction with the completed acquisition, the Company issued approximately 4.7 million shares of common stock. Macatawa operates 26 full-service branches located throughout communities in Kent, Ottawa and northern Allegan counties in the state of Michigan. Macatawa offers a full range of banking, retail and commercial lending, wealth management and ecommerce services to individuals, businesses and governmental entities. As of June 30, 2024, Macatawa had approximately $2.7 billion in assets, $2.3 billion in deposits and $1.3 billion in loans.

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net income	$ 152,388	$ 154,750	$ 339,682	$ 334,948

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Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The interim consolidated financial statements of Wintrust Financial Corporation and its subsidiaries (collectively, “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 interim consolidated financial statements.

The accompanying interim 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 interim unaudited 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, 2023 (“2023 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 credit losses, including the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity securities losses, 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 2023 Form 10-K. In preparation of these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.

Recent Accounting Developments

Equity Method and Joint Ventures - Investments in Tax Credit Structures

In March 2023, the FASB issued ASU No. 2023-02, “Investments-Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method,” which allows reporting entities the option to apply the proportional amortization method to other tax credit programs besides the Low-Income Housing Tax Credit structures. The guidance requires application of the proportional amortization method on a tax-credit-program-by-tax-credit-program basis rather than electing the method at the reporting level entity level. The Company adopted ASU No. 2023-02 as of January 1, 2024. Adoption of this standard did not have a material impact on the Company’s consolidated financial statements.

Segment Reporting

In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” to enhance public entity disclosures regarding significant segment expenses which are regularly reported to an entity’s chief operating decision-maker (“CODM”) and included in a segment’s reported profit or loss. This ASU requires disclosure of the amount and composition of “other segment items,” the title and position of the CODM, and how the CODM uses reported measures of profit or loss to assess segment performance. Further, the guidance requires certain segment disclosures previously provided only annually, on an interim basis. This guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The guidance is to be applied retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of adopting this guidance on the consolidated financial statements.

Income Tax Disclosures

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” to enhance the transparency and decision usefulness of income tax disclosures. This ASU requires annually that all entities disclose increasingly disaggregated information on amount of income taxes paid. Further, this ASU requires annually that all public entities must disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a specific quantitative threshold. This guidance is effective for fiscal years beginning after December 15, 2024, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Compensation – Scope Application of Profits Interest and Similar Awards

In March 2024, the FASB issued ASU No. 2024-01, “Compensation – Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards” which clarifies the guidance by providing an illustrative example to demonstrate how an entity should apply the scope guidance in Topic 718 when determining whether profits interest and similar awards should be accounted for in accordance with Topic 718. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2024, including interim periods therein, and is to be applied either on a prospective basis or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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. These items are included within the Company’s Consolidated Statements of Condition as cash and due from banks, and federal funds sold and securities purchased under resale agreements.

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Investment Securities (Tables)

6 Months Ended

Jun. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Investment Securities

The following tables are a summary of the investment securities portfolios as of the dates shown:

	June 30, 2024
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available-for-sale securities
U.S. Treasury	$	102,721	$	5	$	(14)	$	102,712
U.S. government agencies	50,000		—		(4,808)		45,192
Municipal	151,347		390		(5,129)		146,608
Corporate notes:
Financial issuers	83,996		—		(7,011)		76,985
Other	1,000		—		(10)		990
Mortgage-backed: (1)
Residential mortgage-backed securities	4,320,215		361		(541,742)		3,778,834
Commercial (multi-family) mortgage-backed securities	18,096		8		(626)		17,478
Collateralized mortgage obligations	179,315		629		(18,786)		161,158
Total available-for-sale securities	$	4,906,690	$	1,393	$	(578,126)	$	4,329,957
Held-to-maturity securities
U.S. government agencies	$	336,458	$	—	$	(70,928)	$	265,530
Municipal	166,400		155		(6,789)		159,766
Mortgage-backed: (1)
Residential mortgage-backed securities	2,962,721		—		(591,601)		2,371,120
Commercial (multi-family) mortgage-backed securities	6,390		—		(300)		6,090
Collateralized mortgage obligations	227,247		362		(23,636)		203,973
Corporate notes	57,199		—		(3,211)		53,988
Total held-to-maturity securities	$	3,756,415	$	517	$	(696,465)	$	3,060,467
Less: Allowance for credit losses	(491)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924
Equity securities with readily determinable fair value	$	117,674	$	2,882	$	(8,383)	$	112,173

(1)None of our mortgage-backed securities are subprime.

	December 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	6,960	$	8	$	—	$	6,968
U.S. government agencies	50,000		—		(4,876)		45,124
Municipal	144,299		657		(3,998)		140,958
Corporate notes:
Financial issuers	83,996		—		(8,456)		75,540
Other	1,000		—		(9)		991
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,505,012		1,392		(446,784)		3,059,620
Commercial (multi-family) mortgage-backed securities	13,201		68		(289)		12,980
Collateralized mortgage obligations	175,346		1,400		(16,012)		160,734
Total available-for-sale securities	$	3,979,814	$	3,525	$	(480,424)	$	3,502,915
Held-to-maturity securities
U.S. government agencies	$	336,468	$	—	$	(67,058)	$	269,410
Municipal	172,933		565		(3,778)		169,720
Mortgage-backed: (1)
Residential Mortgage-backed securities	3,042,828		1,922		(549,265)		2,495,485
Commercial (multi-family) mortgage-backed securities	6,415		—		(184)		6,231
Collateralized mortgage obligations	241,075		978		(21,502)		220,551
Corporate notes	57,544		7		(3,480)		54,071
Total held-to-maturity securities	$	3,857,263	$	3,472	$	(645,267)	$	3,215,468
Less: Allowance for credit losses	(347)
Held-to-maturity securities, net of allowance for credit losses	$	3,856,916
Equity securities with readily determinable fair value	$	143,312	$	3,500	$	(7,544)	$	139,268

(1)None of our mortgage-backed securities are subprime.

	June 30, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	80,000		—		(5,725)		74,275
Municipal	173,540		102		(6,231)		167,411
Corporate notes:
Financial issuers	83,995		—		(12,920)		71,075
Other	1,000		—		(15)		985
Mortgage-backed: (1)
Mortgage-backed securities	3,585,943		—		(483,659)		3,102,284
Collateralized mortgage obligations	94,373		—		(17,922)		76,451
Total available-for-sale securities	$	4,018,851	$	102	$	(526,472)	$	3,492,481
Held-to-maturity securities
U.S. government agencies	$	339,604	$	—	$	(71,022)	$	268,582
Municipal	176,128		362		(4,502)		171,988
Mortgage-backed: (1)
Mortgage-backed securities	2,832,138		—		(574,114)		2,258,024
Collateralized mortgage obligations	159,120		—		(23,014)		136,106
Corporate notes	57,889		35		(4,733)		53,191
Total held-to-maturity securities	$	3,564,879	$	397	$	(677,385)	$	2,887,891
Less: Allowance for credit losses	(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,564,473
Equity securities with readily determinable fair value	$	120,629	$	3,711	$	(8,065)	$	116,275

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

Schedule of Available-for-sale Investment Securities Portfolios

The following table presents the portion of the Company’s available-for-sale investment securities portfolios that have gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2024:

	Continuous unrealized losses existing for less than 12 months				Continuous unrealized losses existing for greater than 12 months				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Available-for-sale securities
U.S. Treasury	$	90,735	$	(14)	$	—	$	—	$	90,735	$	(14)
U.S. government agencies	—		—		45,192		(4,808)		45,192		(4,808)
Municipal	42,560		(333)		78,578		(4,796)		121,138		(5,129)
Corporate notes:
Financial issuers	—		—		76,985		(7,011)		76,985		(7,011)
Other	—		—		990		(10)		990		(10)
Mortgage-backed: (1)
Residential mortgage-backed securities	1,226,130		(19,491)		2,537,424		(522,251)		3,763,554		(541,742)
Commercial (multi-family) mortgage-backed securities	14,505		(626)		—		—		14,505		(626)
Collateralized mortgage obligations	16,384		(81)		69,273		(18,705)		85,657		(18,786)
Total available-for-sale securities	$	1,390,314	$	(20,545)	$	2,808,442	$	(557,581)	$	4,198,756	$	(578,126)

(1)None of our mortgage-backed securities are subprime.

Schedule of Gross Gains and Gross Losses Realized and Impairment on Investment Securities

The following table provides information as to the amount of gross gains and losses, adjustments and impairment on investment securities recognized in earnings and proceeds received through the sale or call of investment securities:

	Three months ended June 30,				Six months ended June 30,
(In thousands)	2024		2023		2024		2023
Realized gains on investment securities	$	1,325	$	6	$	2,360	$	611
Realized losses on investment securities	(21)		(6)		(129)		(51)
Net realized gains on investment securities	1,304		0		2,231		560
Unrealized gains on equity securities with readily determinable fair value	74		684		1,108		2,974
Unrealized losses on equity securities with readily determinable fair value	(1,931)		(684)		(2,564)		(2,136)
Net unrealized (losses) gains on equity securities with readily determinable fair value	(1,857)		0		(1,456)		838
Impairment of equity securities without readily determinable fair values	(3,729)		—		(3,731)		—
(Losses) gains on investment securities, net	$	(4,282)	$	0	$	(2,956)	$	1,398

Schedule of Contractual Maturities of Investment Securities

The amortized cost and fair value of available-for-sale and held-to-maturity investment securities as of June 30, 2024, December 31, 2023 and June 30, 2023, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

	June 30, 2024				December 31, 2023				June 30, 2023
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities
Due in one year or less	$	145,856	$	145,599	$	53,162	$	52,945	$	93,724	$	93,137
Due in one to five years	139,409		131,506		132,348		123,985		138,704		126,776
Due in five to ten years	84,756		79,216		82,040		76,869		41,655		36,315
Due after ten years	19,043		16,166		18,705		15,782		64,452		57,518
Mortgage-backed	4,517,626		3,957,470		3,693,559		3,233,334		3,680,316		3,178,735
Total available-for-sale securities	$	4,906,690	$	4,329,957	$	3,979,814	$	3,502,915	$	4,018,851	$	3,492,481
Held-to-maturity securities
Due in one year or less	$	8,356	$	8,213	$	5,169	$	5,142	$	2,479	$	2,475
Due in one to five years	114,457		109,845		109,602		105,835		102,182		96,806
Due in five to ten years	85,507		82,499		99,700		98,718		106,708		105,054
Due after ten years	351,737		278,727		352,474		283,506		362,252		289,426
Mortgage-backed	3,196,358		2,581,183		3,290,318		2,722,267		2,991,258		2,394,130
Total held-to-maturity securities	$	3,756,415	$	3,060,467	$	3,857,263	$	3,215,468	$	3,564,879	$	2,887,891
Less: Allowance for credit losses	(491)				(347)				(406)
Held-to-maturity securities, net of allowance for credit losses	$	3,755,924			$	3,856,916			$	3,564,473

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Loans (Tables)

6 Months Ended

Jun. 30, 2024

Receivables [Abstract]

Schedule 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)	2024			2023			2023
Balance:
Commercial	$	14,154,462		$	12,832,053		$	12,600,471
Commercial real estate	11,947,197			11,344,164			10,608,811
Home equity	356,313			343,976			336,974
Residential real estate	3,067,335			2,769,666			2,643,240
Premium finance receivables—property & casualty	7,100,753			6,903,529			6,762,698
Premium finance receivables—life insurance	7,962,115			7,877,943			8,039,273
Consumer and other	87,356			60,500			31,941
Total loans, net of unearned income	$	44,675,531		$	42,131,831		$	41,023,408
Mix:
Commercial	31		%	30		%	31		%
Commercial real estate	27			27			26
Home equity	1			1			1
Residential real estate	7			7			6
Premium finance receivables—property & casualty	16			16			16
Premium finance receivables—life insurance	18			19			20
Consumer and other	0			0			0
Total loans, net of unearned income	100		%	100		%	100		%

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Allowance for Credit Losses (Tables)

6 Months Ended

Jun. 30, 2024

Credit Loss [Abstract]

Schedule of Aging of the Company's Loan Portfolio

The tables below show the aging of the Company’s loan portfolio by the segmentation noted above at June 30, 2024, December 31, 2023 and June 30, 2023:

As of June 30, 2024			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	51,087	$	304	$	16,485	$	36,358	$	14,050,228	$	14,154,462
Commercial real estate
Construction and development	2,528		—		1,699		6,539		2,249,785		2,260,551
Non-construction	45,761		—		4,856		31,526		9,604,503		9,686,646
Home equity	1,100		—		275		1,229		353,709		356,313
Residential real estate, excluding early buy-out loans	18,198		—		1,977		130		2,912,852		2,933,157
Premium finance receivables
Property and casualty insurance loans	32,722		22,427		29,925		45,927		6,969,752		7,100,753
Life insurance loans	—		—		4,118		17,693		7,940,304		7,962,115
Consumer and other	3		121		81		366		86,785		87,356
Total loans, net of unearned income, excluding early buy-out loans	$	151,399	$	22,852	$	59,416	$	139,768	$	44,167,918	$	44,541,353
Early buy-out loans guaranteed by U.S. government agencies (1)	—		45,788		—		—		88,390		134,178
Total loans, net of unearned income	$	151,399	$	68,640	$	59,416	$	139,768	$	44,256,308	$	44,675,531

As of December 31, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	38,940	$	98	$	19,488	$	85,743	$	12,687,784	$	12,832,053
Commercial real estate
Construction and development	2,205		—		251		1,343		2,080,242		2,084,041
Non-construction	33,254		—		8,264		19,291		9,199,314		9,260,123
Home equity	1,341		—		62		2,263		340,310		343,976
Residential real estate, excluding early buy-out loans	15,391		—		2,325		22,942		2,578,425		2,619,083
Premium finance receivables
Property and casualty insurance loans	27,590		20,135		23,236		50,437		6,782,131		6,903,529
Life insurance loans	—		—		16,206		45,464		7,816,273		7,877,943
Consumer and other	22		54		25		165		60,234		60,500
Total loans, net of unearned income, excluding early buy-out loans	$	118,743	$	20,287	$	69,857	$	227,648	$	41,544,713	$	41,981,248
Early buy-out loans guaranteed by U.S. government agencies (1)	—		57,688		250		328		92,317		150,583
Total loans, net of unearned income	$	118,743	$	77,975	$	70,107	$	227,976	$	41,637,030	$	42,131,831

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

As of June 30, 2023			90+ days and still accruing		60-89 days past due		30-59 days past due
(In thousands)	Nonaccrual								Current		Total Loans
Loan Balances (includes PCD):
Commercial
Commercial, industrial and other	$	40,460	$	573	$	22,808	$	48,970	$	12,487,660	$	12,600,471
Commercial real estate
Construction and development	12,536		—		—		766		1,747,134		1,760,436
Non-construction	5,947		—		1,054		13,452		8,827,922		8,848,375
Home equity	1,361		110		316		601		334,586		336,974
Residential real estate, excluding early buy-out loans	13,652		—		7,243		872		2,433,625		2,455,392
Premium finance receivables
Property and casualty insurance loans	19,583		12,785		22,670		32,751		6,674,909		6,762,698
Life insurance loans	6		1,667		3,729		90,117		7,943,754		8,039,273
Consumer and other	4		28		51		146		31,712		31,941
Total loans, net of unearned income, excluding early buy-out loans	$	93,549	$	15,163	$	57,871	$	187,675	$	40,481,302	$	40,835,560
Early buy-out loans guaranteed by U.S. government agencies (1)	117		57,728		918		—		129,085		187,848
Total loans, net of unearned income	$	93,666	$	72,891	$	58,789	$	187,675	$	40,610,387	$	41,023,408

(1)Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

Schedule of Loan Portfolio by Credit Quality Indicator

The table below shows the Company’s loan portfolio by credit quality indicator and year of origination at June 30, 2024:

	Year of Origination														Revolving		Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Revolving		to Term		Loans
Loan Balances:
Commercial, industrial and other
Pass	$	1,759,369	$	2,462,832	$	1,847,769	$	1,330,074	$	529,579	$	1,099,112	$	4,405,035	$	8,966	$	13,442,736
Special mention	1,704		62,567		69,016		64,001		6,033		51,135		129,899		1,300		385,655
Substandard accrual	2,660		41,267		42,882		40,319		20,026		8,703		119,110		17		274,984
Substandard nonaccrual/doubtful	—		5,950		5,718		21,951		1,237		8,175		7,976		80		51,087
Total commercial, industrial and other	$	1,763,733	$	2,572,616	$	1,965,385	$	1,456,345	$	556,875	$	1,167,125	$	4,662,020	$	10,363	$	14,154,462
Construction and development
Pass	$	78,100	$	475,118	$	973,989	$	371,090	$	79,439	$	159,686	$	22,350	$	—	$	2,159,772
Special mention	—		1,176		14,990		17,091		—		14,969		—		—		48,226
Substandard accrual	—		—		—		1,102		1,777		47,146		—		—		50,025
Substandard nonaccrual/doubtful	—		495		—		—		2,033		—		—		—		2,528
Total construction and development	$	78,100	$	476,789	$	988,979	$	389,283	$	83,249	$	221,801	$	22,350	$	—	$	2,260,551
Non-construction
Pass	$	710,843	$	1,515,024	$	1,757,491	$	1,360,084	$	961,509	$	2,884,404	$	198,713	$	265	$	9,388,333
Special mention	3,364		8,422		37,904		46,765		17,230		46,738		274		—		160,697
Substandard accrual	—		3,202		13,696		9,545		22,983		42,429		—		—		91,855
Substandard nonaccrual/doubtful	—		1,372		453		170		—		43,766		—		—		45,761
Total non-construction	$	714,207	$	1,528,020	$	1,809,544	$	1,416,564	$	1,001,722	$	3,017,337	$	198,987	$	265	$	9,686,646
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	9,272	$	326,705	$	2,737	$	338,714
Special mention	—		—		222		59		120		2,417		6,313		287		9,418
Substandard accrual	—		—		104		—		102		6,242		558		75		7,081
Substandard nonaccrual/doubtful	—		—		511		137		—		363		—		89		1,100
Total home equity	$	—	$	—	$	837	$	196	$	222	$	18,294	$	333,576	$	3,188	$	356,313
Residential real estate
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	380,670		480,911		808,108		754,489		204,797		257,334		—		—		2,886,309

Special mention	—		2,985		5,655		2,284		1,604		6,547		—		—		19,075
Substandard accrual	224		596		3,353		915		1,143		3,344		—		—		9,575
Substandard nonaccrual/doubtful	—		523		5,109		4,642		1,229		6,695		—		—		18,198
Total residential real estate	$	380,894	$	488,777	$	825,606	$	766,143	$	214,473	$	391,442	$	—	$	—	$	3,067,335
Premium finance receivables - property and casualty
Pass	$	5,737,826	$	1,204,432	$	—	$	8,281	$	421	$	—	$	—	$	—	$	6,950,960
Special mention	92,231		19,192		95		8		—		—		—		—		111,526
Substandard accrual	1,488		4,052		1		4		—		—		—		—		5,545
Substandard nonaccrual/doubtful	7,238		25,281		182		19		2		—		—		—		32,722
Total premium finance receivables - property and casualty	$	5,838,783	$	1,252,957	$	278	$	8,312	$	423	$	—	$	—	$	—	$	7,100,753
Premium finance receivables - life
Pass	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Special mention	—		—		—		—		—		—		—		—		—
Substandard accrual	—		—		—		—		—		—		—		—		—
Substandard nonaccrual/doubtful	—		—		—		—		—		—		—		—		—
Total premium finance receivables - life	$	1,137,551	$	6,820,635	$	3,929	$	—	$	—	$	—	$	—	$	—	$	7,962,115
Consumer and other
Pass	$	1,562	$	2,602	$	749	$	667	$	46	$	32,764	$	48,721	$	—	$	87,111
Special mention	6		14		11		5		—		140		2		—		178
Substandard accrual	5		14		9		—		—		27		9		—		64
Substandard nonaccrual/doubtful	—		—		1		2		—		—		—		—		3
Total consumer and other	$	1,573	$	2,630	$	770	$	674	$	46	$	32,931	$	48,732	$	—	$	87,356
Total loans
Early buy-out loans guaranteed by U.S. government agencies	$	—	$	3,762	$	3,381	$	3,813	$	5,700	$	117,522	$	—	$	—	$	134,178
Pass	9,805,921		12,961,554		5,392,035		3,824,685		1,775,791		4,442,572		5,001,524		11,968		43,216,050
Special mention	97,305		94,356		127,893		130,213		24,987		121,946		136,488		1,587		734,775
Substandard accrual	4,377		49,131		60,045		51,885		46,031		107,891		119,677		92		439,129
Substandard nonaccrual/doubtful	7,238		33,621		11,974		26,921		4,501		58,999		7,976		169		151,399
Total loans	$	9,914,841	$	13,142,424	$	5,595,328	$	4,037,517	$	1,857,010	$	4,848,930	$	5,265,665	$	13,816	$	44,675,531
Gross write offs
Six months ended June 30, 2024	244		29,608		3,464		1,220		2,088		21,973		—		—		58,597

Schedule of Held-to-Maturity Debt Securities by Credit Quality Indicator

For purposes of the table below, the Company has converted any issuer rating from an NRSRO into the Company’s internal ratings based on Investment Policy and review by the Company’s management.

As of June 30, 2024	Year of Origination												Total
(In thousands)	2024		2023		2022		2021		2020		Prior		Balance
Amortized Cost Balances:
U.S. government agencies
1-4 internal grade	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
5-7 internal grade													—
8-10 internal grade													—
Total U.S. government agencies	$	—	$	—	$	156,875	$	147,815	$	25,000	$	6,768	$	336,458
Municipal
1-4 internal grade	$	—	$	4,176	$	1,035	$	6,862	$	258	$	151,716	$	164,047
5-7 internal grade	—		—		—		—		—		2,353		2,353
8-10 internal grade													—
Total municipal	$	—	$	4,176	$	1,035	$	6,862	$	258	$	154,069	$	166,400
Mortgage-backed securities
1-4 internal grade	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
5-7 internal grade													—
8-10 internal grade													—
Total mortgage-backed securities	$	—	$	362,988	$	555,653	$	2,277,717	$	—	$	—	$	3,196,358
Corporate notes
1-4 internal grade	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
5-7 internal grade													—
8-10 internal grade													—
Total corporate notes	$	—	$	—	$	14,968	$	—	$	6,005	$	36,226	$	57,199
Total held-to-maturity securities													$	3,756,415
Less: Allowance for credit losses													(491)
Held-to-maturity securities, net of allowance for credit losses													$	3,755,924

Schedule of Allowance for Credit Losses

As significant judgment is required, the review of the appropriateness of the allowance for credit losses is performed quarterly by various committees with participation by the Company's executive management.

	June 30,		December 31,		June 30,
(In thousands)	2024		2023		2023
Allowance for loan losses	$	363,719	$	344,235	$	302,499
Allowance for unfunded lending-related commitments losses	73,350		83,030		84,881
Allowance for loan losses and unfunded lending-related commitments losses	437,069		427,265		387,380
Allowance for held-to-maturity securities losses	491		347		406
Allowance for credit losses	$	437,560	$	427,612	$	387,786

Schedule of Activity in the Allowance for Credit Losses by Loan Portfolio

A summary of activity in the allowance for credit losses, specifically for the loan portfolio (i.e. allowance for loan losses and allowance for unfunded commitment losses), for the three and six months ended June 30, 2024 and June 30, 2023 is as follows:

Three months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	166,518	$	226,052	$	7,191	$	13,701	$	13,330	$	383	$	427,175
Other adjustments	—		—		—		—		(19)		—		(19)
Charge-offs	(9,584)		(15,526)		—		(23)		(9,486)		(137)		(34,756)
Recoveries	950		90		35		8		3,663		24		4,770
Provision for credit losses	24,107		13,112		16		(4,913)		7,258		319		39,899
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069
By measurement method:
Individually measured	$	30,927	$	6,330	$	—	$	32	$	—	$	1	$	37,290
Collectively measured	151,064		217,398		7,242		8,741		14,746		588		399,779
Loans at period end
Individually measured	$	51,087	$	48,289	$	1,100	$	17,807	$	—	$	3	$	118,286
Collectively measured	14,103,375		11,898,908		355,213		2,913,694		15,062,868		87,353		44,421,411
Loans held at fair value	—		—		—		135,834		—		—		135,834

Three months ended June 30, 2023	Commercial		Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)
Allowance for credit losses at beginning of period	$	149,501	$	194,780	$	7,728	$	11,434	$	11,955	$	400	$	375,798
Other adjustments	—		—		—		—		41		—		41
Charge-offs	(5,629)		(8,124)		—		—		(4,653)		(110)		(18,516)
Recoveries	505		25		37		6		890		23		1,486
Provision for credit losses	(1,235)		29,015		(798)		812		813		(36)		28,571
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380
By measurement method:
Individually measured	$	7,205	$	5,819	$	—	$	106	$	—	$	—	$	13,130
Collectively measured	135,937		209,877		6,967		12,146		9,046		277		374,250
Loans at period end
Individually measured	$	40,460	$	18,483	$	1,361	$	13,496	$	—	$	4	$	73,804
Collectively measured	12,560,011		10,590,328		335,613		2,429,297		14,801,971		31,937		40,749,157
Loans held at fair value	—		—		—		200,447		—		—		200,447

Six months ended June 30, 2024			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	169,604	$	223,853	$	7,116	$	13,133	$	13,069	$	490	$	427,265
Other adjustments	—		—		—		—		(50)		—		(50)
Charge-offs	(20,799)		(20,995)		(74)		(61)		(16,424)		(244)		(58,597)
Recoveries	1,429		121		64		10		5,190		47		6,861
Provision for credit losses	31,757		20,749		136		(4,309)		12,961		296		61,590
Allowance for credit losses at period end	$	181,991	$	223,728	$	7,242	$	8,773	$	14,746	$	589	$	437,069

Six months ended June 30, 2023			Commercial Real Estate		Home  Equity		Residential Real Estate		Premium Finance Receivables		Consumer and Other		Total Loans
(In thousands)	Commercial
Allowance for credit losses at beginning of period	$	142,769	$	184,352	$	7,573	$	11,585	$	10,671	$	498	$	357,448
Cumulative effect adjustment from the adoption of ASU 2016-13	111		1,356		(33)		(692)		—		(1)		741
Other adjustments	—		—		—		—		45		—		45
Charge-offs	(8,172)		(8,129)		—		—		(9,303)		(263)		(25,867)
Recoveries	897		125		72		10		2,213		55		3,372
Provision for credit losses	7,537		37,992		(645)		1,349		5,420		(12)		51,641
Allowance for credit losses at period end	$	143,142	$	215,696	$	6,967	$	12,252	$	9,046	$	277	$	387,380

Schedule of Modification of Loans

The tables below presents a summary of the period-end balance of loans to borrowers experiencing financial difficulties during the three and six months ended June 30, 2024 and 2023:

Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Interest Only Payments		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	2,161	0.0	%	$	2,010	$	—	$	—	$	97	$	54
Commercial real estate
Non-construction	340		0.0		21		—		319		—		—
Home equity	—		—		—		—		—		—		—
Residential real estate	81		0.0		81		—		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	2,588	0.0	%	$	2,115	$	3	$	319	$	97	$	54

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2024  (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	2,161	5	143	34
Commercial real estate
Non-construction	340		13	—	—
Home equity	—		—	—	—
Residential real estate	81		12	—	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	2,588	7	140	34

Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	423	0.0	%	$	—	$	—	$	—	$	423
Commercial real estate
Non-construction	4,376		0.0		—		—		—		4,376
Home equity	—		—		—		—		—		—
Residential real estate	264		0.0		143		—		—		121
Premium finance receivables
Property and casualty insurance loans	—		—		—		—		—		—
Total loans	$	5,063	0.0	%	$	143	$	—	$	—	$	4,920

			Weighted Average Magnitude of Modifications:
Three Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	423	41	144	—
Commercial real estate
Non-construction	4,376		39	212	—
Home equity	—		—	—	—
Residential real estate	264		123	262	—
Premium finance receivables
Property and casualty insurance loans	—		—	—	—
Total loans	$	5,063	43	207	—

Six Months Ended June 30, 2024 (Dollars in thousands)	Total (1)		Percentage of Total Class of Loan		Extension of Term (1)		Reduction of  Interest Rate (1)		Interest Only Payments		Delay in Contractual Payments (1)		Extension of Term and Reduction of Interest Rate (1)
Commercial
Commercial, industrial and other	$	3,219	0.0	%	$	2,956	$	—	$	—	$	97	$	166
Commercial real estate
Non-construction	1,469		0.0		293		—		319		857		—
Home equity	89		0.0		89		—		—		—		—
Residential real estate	282		0.0		114		168		—		—		—
Premium finance receivables
Property and casualty insurance loans	6		0.0		3		3		—		—		—
Total loans	$	5,065	0.0	%	$	3,455	$	171	$	319	$	954	$	166

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2024 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	3,219	8	113	34
Commercial real estate
Non-construction	1,469		29	—	16
Home equity	89		12	—	—
Residential real estate	282		19	201	—
Premium finance receivables
Property and casualty insurance loans	6		2	86	—
Total loans	$	5,065	11	156	18

Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Percentage of Total Class of Loan		Extension of Term		Reduction of  Interest Rate		Delay in Contractual Payments		Extension of Term and Reduction of Interest Rate
Commercial
Commercial, industrial and other	$	37,897	0.3	%	$	1,938	$	221	$	35,265	$	473
Commercial real estate
Non-construction	5,709		0.1		467		827		39		4,376
Home equity	203		0.1		203		—		—		—
Residential real estate	1,972		0.1		1,396		271		—		305
Premium finance receivables
Property and casualty insurance loans	11		0.0		3		—		—		8
Total loans	$	45,792	0.1	%	$	4,007	$	1,319	$	35,304	$	5,162

			Weighted Average Magnitude of Modifications:
Six Months Ended June 30, 2023 (Dollars in thousands)	Total		Duration of Extension of Term (months)	Reduction of  Interest Rate (bps)	Duration of Delay in Contractual Payments (months)
Commercial
Commercial, industrial and other	$	37,897	15	108	16
Commercial real estate
Non-construction	5,709		40	232	101
Home equity	203		12	—	—
Residential real estate	1,972		57	284	—
Premium finance receivables
Property and casualty insurance loans	11		0	50	—
Total loans	$	45,792	36	223	17

Schedule of Loans for Borrowers Experiencing Financial Difficulties Modified

The following table presents a summary of all modified loans for borrowers experiencing financial difficulties and such loans that were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)	For the Twelve Months Ended June 30, 2024		Three Months Ended June 30, 2024		Six Months Ended June 30, 2024		For the Six Months Ended June 30, 2023		Three Months Ended June 30, 2023		Six Months Ended June 30, 2023
	Total		Payments in  Default  (1)		Payments in  Default  (1)		Total		Payments in  Default  (1)		Payments in  Default  (1)
Commercial
Commercial, industrial and other	$	4,685	$	1,784	$	1,784	$	37,897	$	18,729	$	18,729
Commercial real estate
Construction and development	2,486		—		—		—		—		—
Non-construction	2,644		639		2,443		5,709		923		923
Home equity	586		—		—		203		203		203
Residential real estate	417		384		384		1,972		541		541
Premium finance receivables
Property and casualty insurance loans	18		14		14		11		11		11
Total loans	$	10,836	$	2,821	$	4,625	$	45,792	$	20,407	$	20,407

(1)Modified loans considered to be in payment default are over 30 days past due subsequent to the restructuring.

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Goodwill and Other Acquisition-Related Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Assets by Business Segment

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

(In thousands)	December 31, 2023		Goodwill Acquired		Impairment Loss		Goodwill Adjustments		June 30, 2024
Community banking	$	545,671	$	—	$	—	$	—	$	545,671
Specialty finance	39,006		—		—		(717)		38,289
Wealth management	71,995		—		—		—		71,995
Total	$	656,672	$	—	$	—	$	(717)	$	655,955

Schedule of Indefinite-Lived Intangible Assets

A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of June 30, 2024 is as follows:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
Community banking segment:
Core deposit intangibles with finite lives:
Gross carrying amount	$	55,206	$	55,206	$	55,206
Accumulated amortization	(47,666)		(46,125)		(44,432)
Net carrying amount	$	7,540	$	9,081	$	10,774
Trademark with indefinite lives:
Carrying amount	5,800		5,800		5,800
Total net carrying amount	$	13,340	$	14,881	$	16,574
Specialty finance segment:
Customer list intangibles with finite lives:
Gross carrying amount	$	1,961	$	1,963	$	1,963
Accumulated amortization	(1,861)		(1,837)		(1,813)
Net carrying amount	$	100	$	126	$	150
Wealth management segment:
Customer list and other intangibles with finite lives:
Gross carrying amount	$	26,630	$	26,630	$	26,630
Accumulated amortization	(19,463)		(18,748)		(17,701)
Net carrying amount	$	7,167	$	7,882	$	8,929
Total acquisition-related intangible assets:
Gross carrying amount	$	89,597	$	89,599	$	89,599
Accumulated amortization	(68,990)		(66,710)		(63,946)
Total other acquisition-related intangible assets, net	$	20,607	$	22,889	$	25,653

Summary of Finite-Lived Intangible Assets

A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of June 30, 2024 is as follows:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
Community banking segment:
Core deposit intangibles with finite lives:
Gross carrying amount	$	55,206	$	55,206	$	55,206
Accumulated amortization	(47,666)		(46,125)		(44,432)
Net carrying amount	$	7,540	$	9,081	$	10,774
Trademark with indefinite lives:
Carrying amount	5,800		5,800		5,800
Total net carrying amount	$	13,340	$	14,881	$	16,574
Specialty finance segment:
Customer list intangibles with finite lives:
Gross carrying amount	$	1,961	$	1,963	$	1,963
Accumulated amortization	(1,861)		(1,837)		(1,813)
Net carrying amount	$	100	$	126	$	150
Wealth management segment:
Customer list and other intangibles with finite lives:
Gross carrying amount	$	26,630	$	26,630	$	26,630
Accumulated amortization	(19,463)		(18,748)		(17,701)
Net carrying amount	$	7,167	$	7,882	$	8,929
Total acquisition-related intangible assets:
Gross carrying amount	$	89,597	$	89,599	$	89,599
Accumulated amortization	(68,990)		(66,710)		(63,946)
Total other acquisition-related intangible assets, net	$	20,607	$	22,889	$	25,653

Schedule of Estimated Amortization

Estimated amortization
Actual in six months ended June 30, 2024	$	2,280
Estimated remaining in 2024	2,021
Estimated—2025	3,482
Estimated—2026	2,772
Estimated—2027	2,156
Estimated—2028	1,591

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Mortgage Servicing Rights ("MSRs") (Tables)

6 Months Ended

Jun. 30, 2024

Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]

Schedule of Changes in the Carrying Value of MSRs

The following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the periods indicated:

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
(In thousands)	2024		2023		2024		2023
Fair value at beginning of the period	$	201,044	$	224,470	$	192,456	$	230,225
Additions from loans sold with servicing retained	8,223		8,720		13,602		13,827
Servicing rights sold	—		(30,170)		—		(30,170)
Estimate of changes in fair value due to:
Payoffs, paydowns and repurchases	(5,534)		(5,043)		(9,920)		(8,952)
Changes in valuation inputs or assumptions	877		2,715		8,472		(4,238)
Fair value at end of the period	$	204,610	$	200,692	$	204,610	$	200,692
Unpaid principal balance of mortgage loans serviced for others	$	12,211,027	$	11,752,223

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Deposits (Tables)

6 Months Ended

Jun. 30, 2024

Deposits [Abstract]

Schedule of Deposits

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

(Dollars in thousands)	June 30, 2024			December 31, 2023			June 30, 2023
Balance:
Non-interest-bearing	$	10,031,440		$	10,420,401		$	10,604,915
NOW and interest-bearing demand deposits	5,053,909			5,797,649			5,814,836
Wealth management deposits	1,490,711			1,614,499			1,417,984
Money market	16,320,017			15,149,215			14,523,124
Savings	5,882,179			5,790,334			5,321,578
Time certificates of deposit	9,270,770			6,625,072			6,356,270
Total deposits	$	48,049,026		$	45,397,170		$	44,038,707
Mix:
Non-interest-bearing	21		%	23		%	24		%
NOW and interest-bearing demand deposits	11			13			13
Wealth management deposits	3			4			3
Money market	34			33			33
Savings	12			13			12
Time certificates of deposit	19			14			15
Total deposits	100		%	100		%	100		%

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FHLB Advances, Other Borrowings and Subordinated Notes (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of 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:

(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023
FHLB advances	$	3,176,309	$	2,326,071	$	2,026,071
Other borrowings:
Notes payable	157,024		171,282		185,539
Short-term borrowings	—		13,430		17,773
Secured borrowings	391,395		401,897		401,669
Other	58,160		59,204		60,238
Total other borrowings	606,579		645,813		665,219
Subordinated notes	298,113		437,866		437,628
Total FHLB advances, other borrowings and subordinated notes	$	4,081,001	$	3,409,750	$	3,128,918

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Junior Subordinated Debentures (Tables)

6 Months Ended

Jun. 30, 2024

Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]

Schedule of Junior Subordinated Debentures

The following table provides a summary of the Company’s junior subordinated debentures as of June 30, 2024. 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 (1)	Contractual Rate at 6/30/2024		Issue Date	Maturity Date	Earliest Redemption Date
Wintrust Capital Trust III	$	774	$	25,000	$	25,774	S+0.26161+3.25	8.84	%	04/2003	04/2033	04/2008
Wintrust Statutory Trust IV	619		20,000		20,619		S+0.26161+2.80	8.39	%	12/2003	12/2033	12/2008
Wintrust Statutory Trust V	1,238		40,000		41,238		S+0.26161+2.60	8.19	%	05/2004	05/2034	06/2009
Wintrust Capital Trust VII	1,550		50,000		51,550		S+0.26161+1.95	7.55	%	12/2004	03/2035	03/2010
Wintrust Capital Trust VIII	1,238		25,000		26,238		S+0.26161+1.45	7.04	%	08/2005	09/2035	09/2010
Wintrust Capital Trust IX	1,547		50,000		51,547		S+0.26161+1.63	7.23	%	09/2006	09/2036	09/2011
Northview Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
Town Bankshares Capital Trust I	186		6,000		6,186		S+0.26161+3.00	8.59	%	08/2003	11/2033	08/2008
First Northwest Capital Trust I	155		5,000		5,155		S+0.26161+3.00	8.59	%	05/2004	05/2034	05/2009
Suburban Illinois Capital Trust II	464		15,000		15,464		S+0.26161+1.75	7.35	%	12/2006	12/2036	12/2011
Community Financial Shares Statutory Trust II	109		3,500		3,609		S+0.26161+1.62	7.22	%	06/2007	09/2037	06/2012
Total					$	253,566		7.79	%

(1)The interest rates on the variable rate junior subordinated debentures are based on the three-month Chicago Mercantile Exchange (“CME”) Term Secured Overnight Financing Rate (“SOFR”) and reset on a quarterly basis.

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Schedule of Operating Information for Reportable Segments

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, 2024		June 30, 2023
Net interest income:
Community Banking	$	358,832	$	346,232	$	12,600	4	%
Specialty Finance	95,191		84,993		10,198		12
Wealth Management	7,928		7,404		524		7
Total Operating Segments	461,951		438,629		23,322		5
Intersegment Eliminations	8,659		8,908		(249)		(3)
Consolidated net interest income	$	470,610	$	447,537	$	23,073	5	%
Provision for credit losses:
Community Banking	$	36,325	$	26,713	$	9,612	36	%
Specialty Finance	3,736		1,801		1,935		107
Wealth Management	—		—		—		—
Total Operating Segments	40,061		28,514		11,547		40
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	40,061	$	28,514	$	11,547	40	%
Non-interest income:
Community Banking	$	71,619	$	68,130	$	3,489	5	%
Specialty Finance	32,317		31,737		580		2
Wealth Management	35,605		33,391		2,214		7
Total Operating Segments	139,541		133,258		6,283		5
Intersegment Eliminations	(18,394)		(20,228)		1,834		(9)
Consolidated non-interest income	$	121,147	$	113,030	$	8,117	7	%
Net revenue:
Community Banking	$	430,451	$	414,362	$	16,089	4	%
Specialty Finance	127,508		116,730		10,778		9
Wealth Management	43,533		40,795		2,738		7
Total Operating Segments	601,492		571,887		29,605		5
Intersegment Eliminations	(9,735)		(11,320)		1,585		(14)
Consolidated net revenue	$	591,757	$	560,567	$	31,190	6	%
Segment profit:
Community Banking	$	91,235	$	102,517	$	(11,282)	(11)	%
Specialty Finance	53,091		46,402		6,689		14
Wealth Management	8,062		5,831		2,231		38
Consolidated net income	$	152,388	$	154,750	$	(2,362)	(2)	%
Segment assets:
Community Banking	$	47,611,508	$	42,452,673	$	5,158,835	12	%
Specialty Finance	11,014,840		10,549,819		465,021		4
Wealth Management	1,155,168		1,283,684		(128,516)		(10)
Consolidated total assets	$	59,781,516	$	54,286,176	$	5,495,340	10	%

NM - Not meaningful

	Six Months Ended				$ Change in Contribution		% Change  in Contribution
(Dollars in thousands)	June 30, 2024		June 30, 2023
Net interest income:
Community Banking	$	722,517	$	716,080	$	6,437	1	%
Specialty Finance	177,473		155,344		22,129		14
Wealth Management	15,686		16,359		(673)		(4)
Total Operating Segments	915,676		887,783		27,893		3
Intersegment Eliminations	19,128		17,749		1,379		8
Consolidated net interest income	$	934,804	$	905,532	$	29,272	3	%
Provision for credit losses:
Community Banking	$	56,717	$	47,812	$	8,905	19	%
Specialty Finance	5,017		3,747		1,270		34
Wealth Management	—		—		—		—
Total Operating Segments	61,734		51,559		10,175		20
Intersegment Eliminations	—		—		—		—
Consolidated provision for credit losses	$	61,734	$	51,559	$	10,175	20	%
Non-interest income:
Community Banking	$	146,255	$	136,863	$	9,392	7	%
Specialty Finance	59,634		57,527		2,107		4
Wealth Management	94,090		63,688		30,402		48
Total Operating Segments	299,979		258,078		41,901		16
Intersegment Eliminations	(38,252)		(37,279)		(973)		3
Consolidated non-interest income	$	261,727	$	220,799	$	40,928	19	%
Net revenue:
Community Banking	$	868,772	$	852,943	$	15,829	2	%
Specialty Finance	237,107		212,871		24,236		11
Wealth Management	109,776		80,047		29,729		37
Total Operating Segments	1,215,655		1,145,861		69,794		6
Intersegment Eliminations	(19,124)		(19,530)		406		(2)
Consolidated net revenue	$	1,196,531	$	1,126,331	$	70,200	6	%
Segment profit:
Community Banking	$	211,282	$	236,749	$	(25,467)	12	%
Specialty Finance	95,614		83,139		12,475		4
Wealth Management	32,786		15,060		17,726		(10)
Consolidated net income	$	339,682	$	334,948	$	4,734	10	%

NM - Not meaningful

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2024

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, 2024, December 31, 2023 and June 30, 2023:

	Derivative Assets						Derivative Liabilities
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges	$	7,532	$	40,116	$	2,154	$	96,825	$	44,456	$	121,347
Interest rate derivatives designated as Fair Value Hedges	12,678		12,349		16,255		—		273		—
Total derivatives designated as hedging instruments under ASC 815	$	20,210	$	52,465	$	18,409	$	96,825	$	44,729	$	121,347
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives	$	215,275	$	211,490	$	261,205	$	217,157	$	210,397	$	261,066
Interest rate lock commitments	4,795		4,511		3,487		67		—		172
Forward commitments to sell mortgage loans	102		—		2,769		597		5,212		38
Commodity forward contracts	702		888		434		304		609		214
Foreign exchange contracts	2,776		6,372		8,444		2,709		6,308		8,335
Total derivatives not designated as hedging instruments under ASC 815	$	223,650	$	223,261	$	276,339	$	220,834	$	222,526	$	269,825
Total Derivatives	$	243,860	$	275,726	$	294,748	$	317,659	$	267,255	$	391,172

Schedule of Cash Flow Hedging Instruments

The table below provides details on these cash flow hedges, summarized by derivative type and maturity, as of June 30, 2024:

	June 30, 2024
	Notional		Fair Value
(In thousands)	Amount		Asset (Liability)
Interest Rate Collars at 1-month CME term SOFR:
Buy 2.250% floor, sell 3.743% cap; matures September 2025	$	1,250,000	$	(16,589)
Buy 2.750% floor, sell 4.320% cap; matures October 2026	500,000		(4,740)
Buy 2.000% floor, sell 3.450% cap; matures September 2027	1,250,000		(37,289)
Interest Rate Swaps at 1-month CME term SOFR:
Fixed 3.748%; matures December 2025	250,000		(3,114)
Fixed 3.759%; matures December 2025	250,000		(3,075)
Fixed 3.680%; matures February 2026	250,000		(3,735)
Fixed 4.176%; matures March 2026	250,000		(1,773)
Fixed 3.915%; matures March 2026	250,000		(2,826)
Fixed 4.450%; matures July 2026	250,000		(206)
Fixed 3.515%, matures December 2026	250,000		(4,597)
Fixed 3.512%; matures December 2026	250,000		(4,614)
Fixed 3.453%; matures February 2027	250,000		(5,369)
Fixed 4.150%; matures July 2027	250,000		(591)
Fixed 3.748%; matures March 2028	250,000		(3,203)
Fixed 3.526%; matures March 2028	250,000		(5,104)
Fixed 3.993%; matures October 2029	100,000		444
Fixed 3.993%; matures October 2029	250,000		1,111
Fixed 4.245%; matures November 2029	175,000		2,988
Fixed 4.245%; matures November 2029	175,000		2,988
Total Cash Flow Hedges	$	6,700,000	$	(89,294)

Schedule 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 income or loss related to interest rate derivatives designated as cash flow hedges, including such derivative contracts terminated during the period, follows:

	Three Months Ended				Six Months Ended
(In thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Unrealized gain at beginning of period	$	(38,553)	$	44,692	$	43,538	$	10,026
Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings	20,524		14,267		40,342		18,014
Amount of loss recognized in other comprehensive income or loss	(31,367)		(120,698)		(133,276)		(89,779)
Unrealized (loss) gain at end of period	$	(49,396)	$	(61,739)	$	(49,396)	$	(61,739)

Schedule of Carrying Amount of Hedged Assets/(Liabilities)

The following table presents the carrying amount of the hedged assets/(liabilities) and the cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets/(liabilities) that are designated as a fair value hedge accounting relationship as of June 30, 2024:

(In thousands)		June 30, 2024
Derivatives in Fair Value Hedging Relationships	Location in the Statement of Condition	Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)		Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued
Interest rate swaps	Loans, net of unearned income	$	199,732	$	(12,684)	$	(69)
	Available-for-sale debt securities	672		(18)		—

The following table presents the loss or gain recognized related to derivative instruments that are designated as fair value hedges for the respective period:

(In thousands) Derivatives in Fair Value Hedging Relationships	Location of (Loss)/Gain Recognized in Income on Derivative	Three Months Ended		Six Months Ended
		June 30, 2024		June 30, 2024
Interest rate swaps	Interest and fees on loans	$	(16)	$	(6)
	Interest income - investment securities	—		—

Schedule of 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:

(In thousands)		Three Months Ended				Six Months Ended
Derivative	Location in income statement	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Interest rate swaps and caps	Trading gains, net	$	(102)	$	12	$	493	$	812
Mortgage banking derivatives	Mortgage banking revenue	3,721		4,791		3,706		8,431
Commodity contracts	Trading gains, net	130		49		398		226
Foreign exchange contracts	Trading gains, net	11		—		19		—
Covered call options	Fees from covered call options	2,056		2,578		6,903		12,969
Derivative contract held as economic hedge on MSRs	Mortgage banking revenue	(772)		(726)		(3,349)		220

Schedule of Offsetting Assets

The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Gross Amounts Recognized	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Less: Amounts offset in the Statements of Condition	—		—		—		—		—		—
Net amount presented in the Statements of Condition	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Gross amounts not offset in the Statements of Condition
Offsetting Derivative Positions	(114,662)		(76,514)		(125,159)		(114,662)		(76,514)		(125,159)
Collateral Posted	(85,762)		(144,899)		(145,735)		—		—		—
Net Credit Exposure	$	35,061	$	42,542	$	8,720	$	199,320	$	178,612	$	257,254

Schedule of Offsetting Liabilities

The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

	Derivative Assets						Derivative Liabilities
	Fair Value						Fair Value
(In thousands)	June 30, 2024		December 31, 2023		June 30, 2023		June 30, 2024		December 31, 2023		June 30, 2023
Gross Amounts Recognized	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Less: Amounts offset in the Statements of Condition	—		—		—		—		—		—
Net amount presented in the Statements of Condition	$	235,485	$	263,955	$	279,614	$	313,982	$	255,126	$	382,413
Gross amounts not offset in the Statements of Condition
Offsetting Derivative Positions	(114,662)		(76,514)		(125,159)		(114,662)		(76,514)		(125,159)
Collateral Posted	(85,762)		(144,899)		(145,735)		—		—		—
Net Credit Exposure	$	35,061	$	42,542	$	8,720	$	199,320	$	178,612	$	257,254

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Fair Values of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Schedule 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, 2024
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	102,712	$	102,712	$	—	$	—
U.S. government agencies	45,192		—		45,192		—
Municipal	146,608		—		50,816		95,792
Corporate notes	77,975		—		77,975		—
Mortgage-backed	3,957,470		—		3,957,470		—
Trading account securities	4,134		—		4,134		—
Equity securities with readily determinable fair value	112,173		104,107		8,066		—
Mortgage loans held-for-sale	411,851		—		371,306		40,545
Loans held-for-investment	135,834		—		90,113		45,721
MSRs	204,610		—		—		204,610
Nonqualified deferred compensation assets	16,041		—		16,041		—
Derivative assets	243,860		—		239,065		4,795
Total	$	5,458,460	$	206,819	$	4,860,178	$	391,463
Derivative liabilities	$	317,659	$	—	$	317,659	$	—

	December 31, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	6,968	$	6,968	$	—	$	—
U.S. government agencies	45,124		—		45,124		—
Municipal	140,958		—		54,721		86,237
Corporate notes	76,531		—		76,531		—
Mortgage-backed	3,233,334		—		3,233,334		—
Trading account securities	4,707		—		4,707		—
Equity securities with readily determinable fair value	139,268		131,202		8,066		—
Mortgage loans held-for-sale	292,722		—		265,887		26,835
Loans held-for-investment	155,261		—		94,591		60,670
MSRs	192,456		—		—		192,456
Nonqualified deferred compensation assets	15,238		—		15,238		—
Derivative assets	275,726		—		271,216		4,510
Total	$	4,578,293	$	138,170	$	4,069,415	$	370,708
Derivative liabilities	$	267,255	$	—	$	267,255	$	—

	June 30, 2023
(In thousands)	Total		Level 1		Level 2		Level 3
Available-for-sale securities
U.S. Treasury	$	—	$	—	$	—	$	—
U.S. government agencies	74,275		—		74,275		—
Municipal	167,411		—		53,256		114,155
Corporate notes	72,060		—		72,060		—
Mortgage-backed	3,178,735		—		3,178,735		—
Trading account securities	3,027		—		3,027		—
Equity securities with readily determinable fair value	116,275		108,209		8,066		—
Mortgage loans held-for-sale	338,728		—		309,322		29,406
Loans held-for-investment	193,953		—		132,830		61,123
MSRs	200,692		—		—		200,692
Nonqualified deferred compensation assets	14,796		—		14,796		—
Derivative assets	294,748		—		291,261		3,487
Total	$	4,654,700	$	108,209	$	4,137,628	$	408,863
Derivative liabilities	$	391,172	$	—	$	391,172	$	—

Schedule 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, 2024 and 2023 are summarized as follows:

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2024	$	88,219	$	33,726	$	49,317	$	201,044	$	6,212
Total net (losses) gains included in:
Net income (1)	—		205		66		3,566		(1,417)
Other comprehensive income or loss	(680)		—		—		—		—
Purchases	9,682		—		—		—		—
Settlements	(1,429)		(10,269)		(7,709)		—		—
Net transfers into Level 3	—		16,883		4,047		—		—
Balance at June 30, 2024	$	95,792	$	40,545	$	45,721	$	204,610	$	4,795

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative assets
(In thousands)	Municipal
Balance at April 1, 2023	$	112,257	$	44,250	$	69,493	$	224,470	$	5,356
Total net (losses) gains included in:
Net income (1)	—		402		(619)		6,392		(1,869)
Other comprehensive income or loss	(3,161)		—		—		—		—
Purchases	6,978		—		—		—		—
Sales	—		—		—		(30,170)		—
Settlements	(1,919)		(23,973)		(16,593)		—		—
Net transfers into Level 3	—		8,727		8,842		—		—
Balance at June 30, 2023	$	114,155	$	29,406	$	61,123	$	200,692	$	3,487

(1)Changes in the balance of mortgage loans held-for-sale, MSRs, and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(In thousands)	Municipal
Balance at January 1, 2024	$	86,237	$	26,835	$	60,670	$	192,456	$	4,510
Total net (losses) gains included in:
Net income (1)	—		272		(251)		12,154		285
Other comprehensive income or loss	(2,668)		—		—		—		—
Purchases	18,066		—		—		—		—
Issuances	—		—		—		—		—
Sales	—		—		—		—		—
Settlements	(5,843)		(20,609)		(23,512)		—		—
Net transfers into Level 3	—		34,047		8,814		—		—
Balance at June 30, 2024	$	95,792	$	40,545	$	45,721	$	204,610	$	4,795

			Mortgage loans held-for-sale		Loans held-for- investment		Mortgage servicing rights		Derivative Assets
(In thousands)	Municipal
Balance at January 1, 2023	$	117,537	$	48,655	$	84,165	$	230,225	$	1,711
Total net (losses) gains included in:
Net income (1)	—		868		(255)		637		1,776
Other comprehensive income or loss	(4,823)		—		—		—		—
Purchases	11,396		—		—		—		—
Sales	—		—		—		(30,170)		—
Settlements	(9,955)		(42,592)		(36,915)		—		—
Net transfers into Level 3	—		22,475		14,128		—		—
Balance at June 30, 2023	$	114,155	$	29,406	$	61,123	$	200,692	$	3,487

(1)Changes in the balance of mortgage loans held-for-sale, MSRs and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Schedule of Assets Measured at Fair Value on a Nonrecurring Basis

For assets measured at fair value on a non-recurring 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, 2024:

	June 30, 2024								Three Months Ended June 30, 2024 Fair Value Losses Recognized, net		Six Months Ended June 30, 2024 Fair Value Losses Recognized, net
(In thousands)	Total		Level 1		Level 2		Level 3
Individually assessed loans - foreclosure probable and collateral-dependent	$	118,286	$	—	$	—	$	118,286	$	25,113	$	41,839
Other real estate owned (1)	19,731		—		—		19,731		—		207
Total	$	138,017	$	—	$	—	$	138,017	$	25,113	$	42,046

(1)Net fair value losses recognized 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, 2024 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	$	95,792	Bond pricing	Equivalent rating	BBB-AA+	N/A			Increase
Mortgage loans held-for-sale	40,545		Discounted cash flows	Discount rate	6.83%	6.83%			Decrease
				Credit discount	0% - 13%	0.36%			Decrease
Loans held-for-investment	45,721		Discounted cash flows	Discount rate	6.75% - 6.83%	6.83%			Decrease
				Credit discount	0% - 17%	1.10%			Decrease
				Constant prepayment rate (CPR) - current loans	7.86%	7.86%			Decrease
				Average life - delinquent loans (in years)	1.2 years - 10.6 years	5.9 years			Decrease
MSRs	204,610		Discounted cash flows	Discount rate	1% - 36%	10.98%			Decrease
				Constant prepayment rate (CPR)	0% - 90%	7.86%			Decrease
				Cost of servicing	$70 - $200	$	77		Decrease
				Cost of servicing - delinquent	$200 - 1,000	$	361		Decrease
Derivatives	4,795		Discounted cash flows	Pull-through rate	4% - 100%	81.17		%	Increase
Measured at fair value on a non-recurring basis:
Individually assessed loans - foreclosure probable and collateral-dependent	118,286		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%			Decrease
Other real estate owned	19,731		Appraisal value	Appraisal adjustment - cost of sale	10%	10.00%			Decrease

Schedule 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, 2024				At December 31, 2023				At June 30, 2023
	Carrying		Fair		Carrying		Fair		Carrying		Fair
(In thousands)	Value		Value		Value		Value		Value		Value
Financial Assets:
Cash and cash equivalents	$	415,524	$	415,524	$	423,464	$	423,464	$	513,917	$	513,917
Interest-bearing deposits with banks	2,824,314		2,824,314		2,084,323		2,084,323		2,163,708		2,163,708
Available-for-sale securities	4,329,957		4,329,957		3,502,915		3,502,915		3,492,481		3,492,481
Held-to-maturity securities	3,755,924		3,060,467		3,856,916		3,215,468		3,564,473		2,887,891
Trading account securities	4,134		4,134		4,707		4,707		3,027		3,027
Equity securities with readily determinable fair value	112,173		112,173		139,268		139,268		116,275		116,275
FHLB and FRB stock, at cost	256,495		256,495		205,003		205,003		195,117		195,117
Brokerage customer receivables	13,682		13,682		10,592		10,592		15,722		15,722
Mortgage loans held-for-sale, at fair value	411,851		411,851		292,722		292,722		338,728		338,728
Loans held-for-investment, at fair value	135,834		135,834		155,261		155,261		193,953		193,953
Loans held-for-investment, at amortized cost	44,539,697		43,461,319		41,976,570		41,090,010		40,829,455		40,142,976
Nonqualified deferred compensation assets	16,041		16,041		15,238		15,238		14,796		14,796
Derivative assets	243,860		243,860		275,726		275,726		294,748		294,748
Accrued interest receivable and other	505,504		505,504		477,832		477,832		434,553		434,553
Total financial assets	$	57,564,990	$	55,791,155	$	53,420,537	$	51,892,529	$	52,170,953	$	50,807,892
Financial Liabilities
Non-maturity deposits	$	38,778,256	$	38,778,256	$	38,772,098	$	38,772,098	$	37,682,437	$	37,682,437
Time certificates of deposit	9,270,770		9,248,374		6,625,072		6,603,746		6,356,270		6,300,161
FHLB advances	3,176,309		3,195,138		2,326,071		2,367,107		2,026,071		2,072,317
Other borrowings	606,579		605,305		645,813		643,755		665,219		662,156
Subordinated notes	298,113		273,666		437,866		413,501		437,628		405,762
Junior subordinated debentures	253,566		253,571		253,566		253,579		253,566		253,562
Derivative liabilities	317,659		317,659		267,255		267,255		391,172		391,172
Accrued interest payable	66,373		66,373		51,116		51,116		45,359		45,359
Total financial liabilities	$	52,767,625	$	52,738,342	$	49,378,857	$	49,372,157	$	47,857,722	$	47,812,926

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Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Schedule of Stock Option Activity

A summary of the Plans’ stock option activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2024	13,100	$	42.76
Granted	—	—
Exercised	(775)	32.26
Forfeited or canceled	—	—
Outstanding at June 30, 2024	12,325	$	43.42	4.0	$	680
Exercisable at June 30, 2024	12,325	$	43.42	4.0	$	680

Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term (1)	Intrinsic Value (2) (in thousands)
Outstanding at January 1, 2023	68,093	$	41.14
Granted	—	—
Exercised	(54,218)	40.87
Forfeited or canceled	—	—
Outstanding at June 30, 2023	13,875	$	42.18	4.5	$	422
Exercisable at June 30, 2023	13,875	$	42.18	4.5	$	422

(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.

Schedule of Plans' Restricted and Performance Share Award Activity

A summary of the Plans’ restricted share activity for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Restricted Shares	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	746,123	$	79.60	610,155	$	73.21
Granted	389,198	99.50		260,173	88.29
Vested and issued	(228,719)	69.54		(103,161)	64.08
Forfeited or canceled	(7,893)	91.47		(7,638)	82.82
Outstanding at June 30	898,709	$	90.68	759,529	$	79.52
Vested, but deferred, at June 30	99,844	$	53.98	98,247	$	53.35

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the six months ended June 30, 2024 and June 30, 2023 is presented below:

	Six months ended June 30, 2024			Six months ended June 30, 2023
Performance-based Stock	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	553,026	$	79.69	545,379	$	70.30
Granted	96,952	58.78		186,313	92.45
Added by performance factor at vesting	111,304	100.44		23,161	63.64
Vested and issued	(295,644)	58.69		(178,203)	63.64
Forfeited or canceled	(3,154)	95.94		(7,909)	82.73
Outstanding at June 30	462,484	$	93.61	568,741	$	79.20
Vested, but deferred, at June 30	21,593	$	43.95	36,438	$	44.99

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Schedule of Components of Other Comprehensive Income or Loss

The following tables summarize the components of other comprehensive income or loss, including the related income tax effects, and the related amount reclassified to net income for the periods presented:

(In thousands)	Accumulated Unrealized (Losses) Gains on Securities		Accumulated Unrealized Gains (Losses) on Derivative Instruments		Accumulated Foreign Currency Translation Adjustments		Total Accumulated Other Comprehensive (Loss) Income
Balance at April 1, 2024	$	(408,002)	$	(28,329)	$	(48,817)	$	(485,148)
Other comprehensive loss during the period, net of tax, before reclassifications	(15,275)		(23,070)		(2,905)		(41,250)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(885)		15,095		—		14,210
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(10)		—		—		(10)
Net other comprehensive (loss) during the period, net of tax	$	(16,170)	$	(7,975)	$	(2,905)	$	(27,050)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)
Balance at January 1, 2024	$	(350,697)	$	32,049	$	(42,583)	$	(361,231)
Other comprehensive loss during the period, net of tax, before reclassifications	(72,562)		(98,024)		(9,139)		(179,725)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(866)		29,671		—		28,805
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(47)		—		—		(47)
Net other comprehensive loss during the period, net of tax	$	(73,475)	$	(68,353)	$	(9,139)	$	(150,967)
Balance at June 30, 2024	$	(424,172)	$	(36,304)	$	(51,722)	$	(512,198)

Balance at April 1, 2023	$	(351,995)	$	32,809	$	(48,250)	$	(367,436)
Other comprehensive income during the period, net of tax, before reclassifications	(33,909)		(88,533)		5,344		(117,098)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(1)		10,465		—		10,464
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(20)		—		—		(20)
Net other comprehensive income during the period, net of tax	$	(33,930)	$	(78,068)	$	5,344	$	(106,654)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)
Balance at January 1, 2023	$	(386,057)	$	7,381	$	(48,960)	$	(427,636)
Other comprehensive loss during the period, net of tax, before reclassifications	594		(65,854)		6,054		(59,206)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(410)		13,214		—		12,804
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(52)		—		—		(52)
Net other comprehensive loss during the period, net of tax	$	132	$	(52,640)	$	6,054	$	(46,454)
Balance at June 30, 2023	$	(385,925)	$	(45,259)	$	(42,906)	$	(474,090)

Schedule of Other Comprehensive Income Reclassified from AOCI

(In thousands)	Amount Reclassified from Accumulated Other Comprehensive Income (Loss) for the
Details Regarding the Component of Accumulated Other Comprehensive Income (Loss)	Three Months Ended				Six Months Ended				Impacted Line on the Consolidated Statements of Income
	June 30,				June 30,
	2024		2023		2024		2023
Accumulated unrealized gains on securities
Gains included in net income	$	1,204	$	2	$	1,178	$	562	(Losses) gains on investment securities, net
	1,204		2		1,178		562		Income before taxes
Tax effect	(319)		(1)		(312)		(152)		Income tax expense
Net of tax	$	885	$	1	$	866	$	410	Net income
Accumulated unrealized gains on derivative instruments
Amount reclassified to interest income on loans	$	23,849	$	18,661	$	48,324	$	27,733	Interest on Loans
Amount reclassified to interest expense on deposits	$	(3,325)	$	(4,657)	$	(7,982)	$	(10,245)	Interest on deposits
Amount reclassified to interest expense on other borrowings	—		263		—		526		Interest on other borrowings
	(20,524)		(14,267)		(40,342)		(18,014)		Income before taxes
Tax effect	5,429		3,802		10,671		4,800		Income tax expense
Net of tax	$	(15,095)	$	(10,465)	$	(29,671)	$	(13,214)	Net income

Schedule of 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
(Dollars in thousands, except per share data)		June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Net income		$	152,388	$	154,750	$	339,682	$	334,948
Less: Preferred stock dividends		6,991		6,991		13,982		13,982
Net income applicable to common shares	(A)	$	145,397	$	147,759	$	325,700	$	320,966
Weighted average common shares outstanding	(B)	61,839		61,192		61,660		61,072
Effect of dilutive potential common shares
Common stock equivalents		926		902		901		933
Weighted average common shares and effect of dilutive potential common shares	(C)	62,765		62,094		62,561		62,005
Net income per common share:
Basic	(A/B)	$	2.35	$	2.41	$	5.28	$	5.26
Diluted	(A/C)	$	2.32	$	2.38	$	5.21	$	5.18

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Business Combinations (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Apr. 03, 2023
Business Acquisition [Line Items]
Goodwill	$ 655,955	$ 656,672	$ 656,674
Rothschild & Co Asset Management U.S.
Business Acquisition [Line Items]
Assets acquired in acquisition				$ 12,600
Goodwill				$ 2,600

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Investment Securities - Schedule of Investment Securities (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Available-for-sale securities
Amortized Cost	$ 4,906,690,000	$ 3,979,814,000	$ 4,018,851,000
Gross Unrealized Gains	1,393,000	3,525,000	102,000
Gross Unrealized Losses	(578,126,000)	(480,424,000)	(526,472,000)
Fair Value	4,329,957,000	3,502,915,000	3,492,481,000
Held-to-maturity securities
Amortized Cost	3,756,415,000	3,857,263,000	3,564,879,000
Gross Unrealized Gains	517,000	3,472,000	397,000
Gross Unrealized Losses	(696,465,000)	(645,267,000)	(677,385,000)
Fair Value	3,060,467,000	3,215,468,000	2,887,891,000
Less: Allowance for credit losses	(491,000)	(347,000)	(406,000)
Held-to-maturity securities, net of allowance for credit losses	3,755,924,000	3,856,916,000	3,564,473,000
Equity securities with readily determinable fair value
Amortized Cost	117,674,000	143,312,000	120,629,000
Gross Unrealized Gains	2,882,000	3,500,000	3,711,000
Gross Unrealized Losses	(8,383,000)	(7,544,000)	(8,065,000)
Fair Value	112,173,000	139,268,000	116,275,000
U.S. Treasury
Available-for-sale securities
Amortized Cost	102,721,000	6,960,000	0
Gross Unrealized Gains	5,000	8,000	0
Gross Unrealized Losses	(14,000)	0	0
Fair Value	102,712,000	6,968,000	0
U.S. government agencies
Available-for-sale securities
Amortized Cost	50,000,000	50,000,000	80,000,000
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(4,808,000)	(4,876,000)	(5,725,000)
Fair Value	45,192,000	45,124,000	74,275,000
Held-to-maturity securities
Amortized Cost	336,458,000	336,468,000	339,604,000
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(70,928,000)	(67,058,000)	(71,022,000)
Fair Value	265,530,000	269,410,000	268,582,000
Municipal
Available-for-sale securities
Amortized Cost	151,347,000	144,299,000	173,540,000
Gross Unrealized Gains	390,000	657,000	102,000
Gross Unrealized Losses	(5,129,000)	(3,998,000)	(6,231,000)
Fair Value	146,608,000	140,958,000	167,411,000
Held-to-maturity securities
Amortized Cost	166,400,000	172,933,000	176,128,000
Gross Unrealized Gains	155,000	565,000	362,000
Gross Unrealized Losses	(6,789,000)	(3,778,000)	(4,502,000)
Fair Value	159,766,000	169,720,000	171,988,000
Corporate notes
Held-to-maturity securities
Amortized Cost	57,199,000	57,544,000	57,889,000
Gross Unrealized Gains	0	7,000	35,000
Gross Unrealized Losses	(3,211,000)	(3,480,000)	(4,733,000)
Fair Value	53,988,000	54,071,000	53,191,000
Financial issuers
Available-for-sale securities
Amortized Cost	83,996,000	83,996,000	83,995,000
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(7,011,000)	(8,456,000)	(12,920,000)
Fair Value	76,985,000	75,540,000	71,075,000
Other
Available-for-sale securities
Amortized Cost	1,000,000	1,000,000	1,000,000
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(10,000)	(9,000)	(15,000)
Fair Value	990,000	991,000	985,000
Residential mortgage-backed securities
Available-for-sale securities
Amortized Cost	4,320,215,000	3,505,012,000	3,585,943,000
Gross Unrealized Gains	361,000	1,392,000	0
Gross Unrealized Losses	(541,742,000)	(446,784,000)	(483,659,000)
Fair Value	3,778,834,000	3,059,620,000	3,102,284,000
Held-to-maturity securities
Amortized Cost	2,962,721,000	3,042,828,000	2,832,138,000
Gross Unrealized Gains	0	1,922,000	0
Gross Unrealized Losses	(591,601,000)	(549,265,000)	(574,114,000)
Fair Value	2,371,120,000	2,495,485,000	2,258,024,000
Commercial (multi-family) mortgage-backed securities
Available-for-sale securities
Amortized Cost	18,096,000	13,201,000
Gross Unrealized Gains	8,000	68,000
Gross Unrealized Losses	(626,000)	(289,000)
Fair Value	17,478,000	12,980,000
Held-to-maturity securities
Amortized Cost	6,390,000	6,415,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(300,000)	(184,000)
Fair Value	6,090,000	6,231,000
Collateralized mortgage obligations
Available-for-sale securities
Amortized Cost	179,315,000	175,346,000	94,373,000
Gross Unrealized Gains	629,000	1,400,000	0
Gross Unrealized Losses	(18,786,000)	(16,012,000)	(17,922,000)
Fair Value	161,158,000	160,734,000	76,451,000
Held-to-maturity securities
Amortized Cost	227,247,000	241,075,000	159,120,000
Gross Unrealized Gains	362,000	978,000	0
Gross Unrealized Losses	(23,636,000)	(21,502,000)	(23,014,000)
Fair Value	203,973,000	220,551,000	136,106,000
Mortgage-backed securities, subprime
Available-for-sale securities
Fair Value	$ 0	$ 0	$ 0

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Investment Securities - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Investments, Debt and Equity Securities [Abstract]
Equity securities without readily determinable fair value	$ 62,700		$ 62,700
Upward adjustments of equity securities without readily determinable fair values	0	$ 0	0	$ 0
Downward adjustments of equity securities without readily determinable fair values	0	0	0	0
Impairment of equity securities without readily determinable fair values	3,729	0	3,731	0
Pledged securities	$ 7,600,000	$ 6,400,000	$ 7,600,000	$ 6,400,000	$ 6,900,000
Number of securities by a single non-government sponsored issuer exceeding 10% of shareholders' equity | security	0		0

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Investment Securities - Schedule of Available-for-sale Investment Securities Portfolios (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	$ 1,390,314,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(20,545,000)
Continuous unrealized losses existing for greater than 12 months, fair value	2,808,442,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(557,581,000)
Total, fair value	4,198,756,000
Total, unrealized losses	(578,126,000)
Available-for-sale securities, at fair value	4,329,957,000	$ 3,502,915,000	$ 3,492,481,000
U.S. Treasury
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	90,735,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(14,000)
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	90,735,000
Total, unrealized losses	(14,000)
Available-for-sale securities, at fair value	102,712,000	6,968,000	0
U.S. government agencies
Available-for-sale securities
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	45,192,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(4,808,000)
Total, fair value	45,192,000
Total, unrealized losses	(4,808,000)
Available-for-sale securities, at fair value	45,192,000	45,124,000	74,275,000
Municipal
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	42,560,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(333,000)
Continuous unrealized losses existing for greater than 12 months, fair value	78,578,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(4,796,000)
Total, fair value	121,138,000
Total, unrealized losses	(5,129,000)
Available-for-sale securities, at fair value	146,608,000	140,958,000	167,411,000
Financial issuers
Available-for-sale securities
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	76,985,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(7,011,000)
Total, fair value	76,985,000
Total, unrealized losses	(7,011,000)
Available-for-sale securities, at fair value	76,985,000	75,540,000	71,075,000
Other
Available-for-sale securities
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	990,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(10,000)
Total, fair value	990,000
Total, unrealized losses	(10,000)
Available-for-sale securities, at fair value	990,000	991,000	985,000
Residential mortgage-backed securities
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	1,226,130,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(19,491,000)
Continuous unrealized losses existing for greater than 12 months, fair value	2,537,424,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(522,251,000)
Total, fair value	3,763,554,000
Total, unrealized losses	(541,742,000)
Available-for-sale securities, at fair value	3,778,834,000	3,059,620,000	3,102,284,000
Commercial (multi-family) mortgage-backed securities
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	14,505,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(626,000)
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	14,505,000
Total, unrealized losses	(626,000)
Available-for-sale securities, at fair value	17,478,000	12,980,000
Collateralized mortgage obligations
Available-for-sale securities
Continuous unrealized losses existing for less than 12 months, fair value	16,384,000
Continuous unrealized losses existing for less than 12 months, unrealized losses	(81,000)
Continuous unrealized losses existing for greater than 12 months, fair value	69,273,000
Continuous unrealized losses existing for greater than 12 months, unrealized losses	(18,705,000)
Total, fair value	85,657,000
Total, unrealized losses	(18,786,000)
Available-for-sale securities, at fair value	161,158,000	160,734,000	76,451,000
Mortgage-backed securities, subprime
Available-for-sale securities
Available-for-sale securities, at fair value	$ 0	$ 0	$ 0

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Investment Securities - Schedule of Gross Gains and Gross Losses Realized and Impairment on Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Realized gains on investment securities	$ 1,325	$ 6	$ 2,360	$ 611
Realized losses on investment securities	(21)	(6)	(129)	(51)
Net realized gains on investment securities	1,304	0	2,231	560
Unrealized gains on equity securities with readily determinable fair value	74	684	1,108	2,974
Unrealized losses on equity securities with readily determinable fair value	(1,931)	(684)	(2,564)	(2,136)
Net unrealized (losses) gains on equity securities with readily determinable fair value	(1,857)	0	(1,456)	838
Impairment of equity securities without readily determinable fair values	(3,729)	0	(3,731)	0
(Losses) gains on investment securities, net	$ (4,282)	$ 0	$ (2,956)	$ 1,398

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Investment Securities - Schedule of Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Available-for-sale securities
Due in one year or less, amortized cost	$ 145,856	$ 53,162	$ 93,724
Due in one to five years, amortized cost	139,409	132,348	138,704
Due in five to ten years, amortized cost	84,756	82,040	41,655
Due after ten years, amortized cost	19,043	18,705	64,452
Amortized Cost	4,906,690	3,979,814	4,018,851
Due in one year or less, fair value	145,599	52,945	93,137
Due in one to five years, fair value	131,506	123,985	126,776
Due in five to ten years, fair value	79,216	76,869	36,315
Due after ten years, fair value	16,166	15,782	57,518
Fair Value	4,329,957	3,502,915	3,492,481
Held-to-maturity securities
Held-to-maturity securities, due in one year or less, amortized cost	8,356	5,169	2,479
Held-to-maturity securities, due in one to five years, amortized cost	114,457	109,602	102,182
Held-to-maturity securities, due in five to ten years, amortized cost	85,507	99,700	106,708
Held-to-maturity securities, due after ten years, amortized cost	351,737	352,474	362,252
Amortized Cost	3,756,415	3,857,263	3,564,879
Less: Allowance for credit losses	(491)	(347)	(406)
Held-to-maturity securities, net of allowance for credit losses	3,755,924	3,856,916	3,564,473
Held-to-maturity securities, due in one year or less, fair value	8,213	5,142	2,475
Held-to-maturity securities, due in one to five years, fair value	109,845	105,835	96,806
Held-to-maturity securities, due in five to ten years, fair value	82,499	98,718	105,054
Held-to-maturity securities, due after ten years, fair value	278,727	283,506	289,426
Fair Value	3,060,467	3,215,468	2,887,891
Mortgage-backed
Available-for-sale securities
Mortgage-backed, without single maturity date, amortized cost	4,517,626	3,693,559	3,680,316
Mortgage-backed, without single maturity date, fair value	3,957,470	3,233,334	3,178,735
Held-to-maturity securities
Mortgage-backed, amortized cost	3,196,358	3,290,318	2,991,258
Mortgage-backed, fair value	$ 2,581,183	$ 2,722,267	$ 2,394,130

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Loans - Schedule of Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Loans [Line Items]
Total loans, net of unearned income	$ 44,675,531	$ 42,131,831	$ 41,023,408
Total loans, net of unearned income, percentage	100.00%	100.00%	100.00%
Commercial
Loans [Line Items]
Total loans, net of unearned income	$ 14,154,462	$ 12,832,053	$ 12,600,471
Total loans, net of unearned income, percentage	31.00%	30.00%	31.00%
Commercial real estate
Loans [Line Items]
Total loans, net of unearned income	$ 11,947,197	$ 11,344,164	$ 10,608,811
Total loans, net of unearned income, percentage	27.00%	27.00%	26.00%
Home equity
Loans [Line Items]
Total loans, net of unearned income	$ 356,313	$ 343,976	$ 336,974
Total loans, net of unearned income, percentage	1.00%	1.00%	1.00%
Residential real estate
Loans [Line Items]
Total loans, net of unearned income	$ 3,067,335	$ 2,769,666	$ 2,643,240
Total loans, net of unearned income, percentage	7.00%	7.00%	6.00%
Premium finance receivables | Premium finance receivables—property & casualty
Loans [Line Items]
Total loans, net of unearned income	$ 7,100,753	$ 6,903,529	$ 6,762,698
Total loans, net of unearned income, percentage	16.00%	16.00%	16.00%
Premium finance receivables | Premium finance receivables—life insurance
Loans [Line Items]
Total loans, net of unearned income	$ 7,962,115	$ 7,877,943	$ 8,039,273
Total loans, net of unearned income, percentage	18.00%	19.00%	20.00%
Consumer and other
Loans [Line Items]
Total loans, net of unearned income	$ 87,356	$ 60,500	$ 31,941
Total loans, net of unearned income, percentage	0.00%	0.00%	0.00%

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Loans - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Loans [Line Items]
Net deferred loan fees and costs and fair value accounting adjustments	$ 89.6	$ 84.2	$ 72.8
Premium finance receivables
Loans [Line Items]
Unearned income portion of premium finance receivables	$ 248.3	$ 285.4	$ 281.7

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Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest related to financial assets held at amortized cost	$ 297,200	$ 267,300	$ 297,200	$ 267,300	$ 304,500
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable and other	Accrued interest receivable and other	Accrued interest receivable and other	Accrued interest receivable and other	Accrued interest receivable and other
Nonaccrual loans with no related allowance for credit losses	$ 46,600		$ 46,600
Provision for credit losses	39,899	$ 28,571	61,590	$ 51,641
Loan net charge-offs	30,000		51,700
Provision for credit losses	162		144
Foreclosed residential real estate properties	161		161
Commitments to lend	5,100	43,500	5,100	43,500
Home equity
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	16	(798)	136	(645)
Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	(4,913)	812	(4,309)	1,349
Premium finance receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for credit losses	7,258	813	12,961	5,420
Financing Receivable | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded investment, foreclosure proceedings in process	$ 43,800	$ 50,400	$ 43,800	$ 50,400

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Allowance for Credit Losses - Schedule of Aging of the Company's Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 151,399	$ 118,743	$ 93,666
Loans, net of unearned income	44,675,531	42,131,831	41,023,408
Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Past Due [Line Items]
Nonaccrual	0	0	117
Loans, net of unearned income	134,178	150,583	187,848
Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual	51,087	38,940	40,460
Loans, net of unearned income	14,154,462	12,832,053	12,600,471
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	11,947,197	11,344,164	10,608,811
Commercial real estate | Construction and development
Financing Receivable, Past Due [Line Items]
Nonaccrual	2,528	2,205	12,536
Loans, net of unearned income	2,260,551	2,084,041	1,760,436
Commercial real estate | Non-construction
Financing Receivable, Past Due [Line Items]
Nonaccrual	45,761	33,254	5,947
Loans, net of unearned income	9,686,646	9,260,123	8,848,375
Home equity
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,100	1,341	1,361
Loans, net of unearned income	356,313	343,976	336,974
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	3,067,335	2,769,666	2,643,240
Residential real estate | Residential real estate, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	18,198	15,391	13,652
Loans, net of unearned income	2,933,157	2,619,083	2,455,392
Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	32,722	27,590	19,583
Loans, net of unearned income	7,100,753	6,903,529	6,762,698
Premium finance receivables | Life insurance loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	0	0	6
Loans, net of unearned income	7,962,115	7,877,943	8,039,273
Consumer and other
Financing Receivable, Past Due [Line Items]
Nonaccrual	3	22	4
Loans, net of unearned income	87,356	60,500	31,941
Total loans, net of unearned income, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	151,399	118,743	93,549
Loans, net of unearned income	44,541,353	41,981,248	40,835,560
90+ days and still accruing
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	68,640	77,975	72,891
90+ days and still accruing | Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	45,788	57,688	57,728
90+ days and still accruing | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	304	98	573
90+ days and still accruing | Commercial real estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0	0
90+ days and still accruing | Commercial real estate | Non-construction
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0	0
90+ days and still accruing | Home equity
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0	110
90+ days and still accruing | Residential real estate | Residential real estate, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0	0
90+ days and still accruing | Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	22,427	20,135	12,785
90+ days and still accruing | Premium finance receivables | Life insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0	1,667
90+ days and still accruing | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	121	54	28
90+ days and still accruing | Total loans, net of unearned income, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	22,852	20,287	15,163
60-89 days past due
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	59,416	70,107	58,789
60-89 days past due | Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	250	918
60-89 days past due | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	16,485	19,488	22,808
60-89 days past due | Commercial real estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,699	251	0
60-89 days past due | Commercial real estate | Non-construction
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	4,856	8,264	1,054
60-89 days past due | Home equity
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	275	62	316
60-89 days past due | Residential real estate | Residential real estate, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,977	2,325	7,243
60-89 days past due | Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	29,925	23,236	22,670
60-89 days past due | Premium finance receivables | Life insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	4,118	16,206	3,729
60-89 days past due | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	81	25	51
60-89 days past due | Total loans, net of unearned income, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	59,416	69,857	57,871
30-59 days past due
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	139,768	227,976	187,675
30-59 days past due | Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	328	0
30-59 days past due | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	36,358	85,743	48,970
30-59 days past due | Commercial real estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	6,539	1,343	766
30-59 days past due | Commercial real estate | Non-construction
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	31,526	19,291	13,452
30-59 days past due | Home equity
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,229	2,263	601
30-59 days past due | Residential real estate | Residential real estate, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	130	22,942	872
30-59 days past due | Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	45,927	50,437	32,751
30-59 days past due | Premium finance receivables | Life insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	17,693	45,464	90,117
30-59 days past due | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	366	165	146
30-59 days past due | Total loans, net of unearned income, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	139,768	227,648	187,675
Current
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	44,256,308	41,637,030	40,610,387
Current | Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	88,390	92,317	129,085
Current | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	14,050,228	12,687,784	12,487,660
Current | Commercial real estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	2,249,785	2,080,242	1,747,134
Current | Commercial real estate | Non-construction
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	9,604,503	9,199,314	8,827,922
Current | Home equity
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	353,709	340,310	334,586
Current | Residential real estate | Residential real estate, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	2,912,852	2,578,425	2,433,625
Current | Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	6,969,752	6,782,131	6,674,909
Current | Premium finance receivables | Life insurance loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	7,940,304	7,816,273	7,943,754
Current | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	86,785	60,234	31,712
Current | Total loans, net of unearned income, excluding early buy-out loans
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	$ 44,167,918	$ 41,544,713	$ 40,481,302

XML

Allowance for Credit Losses - Schedule of Loan Portfolio by Credit Quality Indicator (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 9,914,841		$ 9,914,841
2023	13,142,424		13,142,424
2022	5,595,328		5,595,328
2021	4,037,517		4,037,517
2020	1,857,010		1,857,010
Prior	4,848,930		4,848,930
Revolving	5,265,665		5,265,665
Revolving to term	13,816		13,816
Total Loans	44,675,531	$ 41,023,408	44,675,531	$ 41,023,408	$ 42,131,831
Gross write offs
2024			244
2023			29,608
2022			3,464
2021			1,220
2020			2,088
Prior			21,973
Revolving			0
Revolving to term			0
Total loans	34,756	18,516	58,597	25,867
Commercial, industrial and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,763,733		1,763,733
2023	2,572,616		2,572,616
2022	1,965,385		1,965,385
2021	1,456,345		1,456,345
2020	556,875		556,875
Prior	1,167,125		1,167,125
Revolving	4,662,020		4,662,020
Revolving to term	10,363		10,363
Total Loans	14,154,462		14,154,462
Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	78,100		78,100
2023	476,789		476,789
2022	988,979		988,979
2021	389,283		389,283
2020	83,249		83,249
Prior	221,801		221,801
Revolving	22,350		22,350
Revolving to term	0		0
Total Loans	2,260,551		2,260,551
Non-construction
Financing Receivable, Credit Quality Indicator [Line Items]
2024	714,207		714,207
2023	1,528,020		1,528,020
2022	1,809,544		1,809,544
2021	1,416,564		1,416,564
2020	1,001,722		1,001,722
Prior	3,017,337		3,017,337
Revolving	198,987		198,987
Revolving to term	265		265
Total Loans	9,686,646		9,686,646
Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	837		837
2021	196		196
2020	222		222
Prior	18,294		18,294
Revolving	333,576		333,576
Revolving to term	3,188		3,188
Total Loans	356,313	336,974	356,313	336,974	343,976
Gross write offs
Total loans	0	0	74	0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	380,894		380,894
2023	488,777		488,777
2022	825,606		825,606
2021	766,143		766,143
2020	214,473		214,473
Prior	391,442		391,442
Revolving	0		0
Revolving to term	0		0
Total Loans	3,067,335	2,643,240	3,067,335	2,643,240	2,769,666
Gross write offs
Total loans	23	0	61	0
Premium finance receivables - property and casualty
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5,838,783		5,838,783
2023	1,252,957		1,252,957
2022	278		278
2021	8,312		8,312
2020	423		423
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	7,100,753		7,100,753
Premium finance receivables - life
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,137,551		1,137,551
2023	6,820,635		6,820,635
2022	3,929		3,929
2021	0		0
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	7,962,115		7,962,115
Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,573		1,573
2023	2,630		2,630
2022	770		770
2021	674		674
2020	46		46
Prior	32,931		32,931
Revolving	48,732		48,732
Revolving to term	0		0
Total Loans	87,356	31,941	87,356	31,941	$ 60,500
Gross write offs
Total loans	137	$ 110	244	$ 263
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	9,805,921		9,805,921
2023	12,961,554		12,961,554
2022	5,392,035		5,392,035
2021	3,824,685		3,824,685
2020	1,775,791		1,775,791
Prior	4,442,572		4,442,572
Revolving	5,001,524		5,001,524
Revolving to term	11,968		11,968
Total Loans	43,216,050		43,216,050
Pass | Commercial, industrial and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,759,369		1,759,369
2023	2,462,832		2,462,832
2022	1,847,769		1,847,769
2021	1,330,074		1,330,074
2020	529,579		529,579
Prior	1,099,112		1,099,112
Revolving	4,405,035		4,405,035
Revolving to term	8,966		8,966
Total Loans	13,442,736		13,442,736
Pass | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	78,100		78,100
2023	475,118		475,118
2022	973,989		973,989
2021	371,090		371,090
2020	79,439		79,439
Prior	159,686		159,686
Revolving	22,350		22,350
Revolving to term	0		0
Total Loans	2,159,772		2,159,772
Pass | Non-construction
Financing Receivable, Credit Quality Indicator [Line Items]
2024	710,843		710,843
2023	1,515,024		1,515,024
2022	1,757,491		1,757,491
2021	1,360,084		1,360,084
2020	961,509		961,509
Prior	2,884,404		2,884,404
Revolving	198,713		198,713
Revolving to term	265		265
Total Loans	9,388,333		9,388,333
Pass | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	9,272		9,272
Revolving	326,705		326,705
Revolving to term	2,737		2,737
Total Loans	338,714		338,714
Pass | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	380,670		380,670
2023	480,911		480,911
2022	808,108		808,108
2021	754,489		754,489
2020	204,797		204,797
Prior	257,334		257,334
Revolving	0		0
Revolving to term	0		0
Total Loans	2,886,309		2,886,309
Pass | Premium finance receivables - property and casualty
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5,737,826		5,737,826
2023	1,204,432		1,204,432
2022	0		0
2021	8,281		8,281
2020	421		421
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	6,950,960		6,950,960
Pass | Premium finance receivables - life
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,137,551		1,137,551
2023	6,820,635		6,820,635
2022	3,929		3,929
2021	0		0
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	7,962,115		7,962,115
Pass | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,562		1,562
2023	2,602		2,602
2022	749		749
2021	667		667
2020	46		46
Prior	32,764		32,764
Revolving	48,721		48,721
Revolving to term	0		0
Total Loans	87,111		87,111
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	97,305		97,305
2023	94,356		94,356
2022	127,893		127,893
2021	130,213		130,213
2020	24,987		24,987
Prior	121,946		121,946
Revolving	136,488		136,488
Revolving to term	1,587		1,587
Total Loans	734,775		734,775
Special mention | Commercial, industrial and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,704		1,704
2023	62,567		62,567
2022	69,016		69,016
2021	64,001		64,001
2020	6,033		6,033
Prior	51,135		51,135
Revolving	129,899		129,899
Revolving to term	1,300		1,300
Total Loans	385,655		385,655
Special mention | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	1,176		1,176
2022	14,990		14,990
2021	17,091		17,091
2020	0		0
Prior	14,969		14,969
Revolving	0		0
Revolving to term	0		0
Total Loans	48,226		48,226
Special mention | Non-construction
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3,364		3,364
2023	8,422		8,422
2022	37,904		37,904
2021	46,765		46,765
2020	17,230		17,230
Prior	46,738		46,738
Revolving	274		274
Revolving to term	0		0
Total Loans	160,697		160,697
Special mention | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	222		222
2021	59		59
2020	120		120
Prior	2,417		2,417
Revolving	6,313		6,313
Revolving to term	287		287
Total Loans	9,418		9,418
Special mention | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	2,985		2,985
2022	5,655		5,655
2021	2,284		2,284
2020	1,604		1,604
Prior	6,547		6,547
Revolving	0		0
Revolving to term	0		0
Total Loans	19,075		19,075
Special mention | Premium finance receivables - property and casualty
Financing Receivable, Credit Quality Indicator [Line Items]
2024	92,231		92,231
2023	19,192		19,192
2022	95		95
2021	8		8
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	111,526		111,526
Special mention | Premium finance receivables - life
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	0		0
Special mention | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	6		6
2023	14		14
2022	11		11
2021	5		5
2020	0		0
Prior	140		140
Revolving	2		2
Revolving to term	0		0
Total Loans	178		178
Substandard accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	4,377		4,377
2023	49,131		49,131
2022	60,045		60,045
2021	51,885		51,885
2020	46,031		46,031
Prior	107,891		107,891
Revolving	119,677		119,677
Revolving to term	92		92
Total Loans	439,129		439,129
Substandard accrual | Commercial, industrial and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,660		2,660
2023	41,267		41,267
2022	42,882		42,882
2021	40,319		40,319
2020	20,026		20,026
Prior	8,703		8,703
Revolving	119,110		119,110
Revolving to term	17		17
Total Loans	274,984		274,984
Substandard accrual | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	1,102		1,102
2020	1,777		1,777
Prior	47,146		47,146
Revolving	0		0
Revolving to term	0		0
Total Loans	50,025		50,025
Substandard accrual | Non-construction
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	3,202		3,202
2022	13,696		13,696
2021	9,545		9,545
2020	22,983		22,983
Prior	42,429		42,429
Revolving	0		0
Revolving to term	0		0
Total Loans	91,855		91,855
Substandard accrual | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	104		104
2021	0		0
2020	102		102
Prior	6,242		6,242
Revolving	558		558
Revolving to term	75		75
Total Loans	7,081		7,081
Substandard accrual | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	224		224
2023	596		596
2022	3,353		3,353
2021	915		915
2020	1,143		1,143
Prior	3,344		3,344
Revolving	0		0
Revolving to term	0		0
Total Loans	9,575		9,575
Substandard accrual | Premium finance receivables - property and casualty
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,488		1,488
2023	4,052		4,052
2022	1		1
2021	4		4
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	5,545		5,545
Substandard accrual | Premium finance receivables - life
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	0		0
Substandard accrual | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	5		5
2023	14		14
2022	9		9
2021	0		0
2020	0		0
Prior	27		27
Revolving	9		9
Revolving to term	0		0
Total Loans	64		64
Substandard nonaccrual/doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,238		7,238
2023	33,621		33,621
2022	11,974		11,974
2021	26,921		26,921
2020	4,501		4,501
Prior	58,999		58,999
Revolving	7,976		7,976
Revolving to term	169		169
Total Loans	151,399		151,399
Substandard nonaccrual/doubtful | Commercial, industrial and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	5,950		5,950
2022	5,718		5,718
2021	21,951		21,951
2020	1,237		1,237
Prior	8,175		8,175
Revolving	7,976		7,976
Revolving to term	80		80
Total Loans	51,087		51,087
Substandard nonaccrual/doubtful | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	495		495
2022	0		0
2021	0		0
2020	2,033		2,033
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	2,528		2,528
Substandard nonaccrual/doubtful | Non-construction
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	1,372		1,372
2022	453		453
2021	170		170
2020	0		0
Prior	43,766		43,766
Revolving	0		0
Revolving to term	0		0
Total Loans	45,761		45,761
Substandard nonaccrual/doubtful | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	511		511
2021	137		137
2020	0		0
Prior	363		363
Revolving	0		0
Revolving to term	89		89
Total Loans	1,100		1,100
Substandard nonaccrual/doubtful | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	523		523
2022	5,109		5,109
2021	4,642		4,642
2020	1,229		1,229
Prior	6,695		6,695
Revolving	0		0
Revolving to term	0		0
Total Loans	18,198		18,198
Substandard nonaccrual/doubtful | Premium finance receivables - property and casualty
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,238		7,238
2023	25,281		25,281
2022	182		182
2021	19		19
2020	2		2
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	32,722		32,722
Substandard nonaccrual/doubtful | Premium finance receivables - life
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	0		0
Substandard nonaccrual/doubtful | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0
2022	1		1
2021	2		2
2020	0		0
Prior	0		0
Revolving	0		0
Revolving to term	0		0
Total Loans	3		3
Early buy-out loans guaranteed by U.S. government agencies
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	3,762		3,762
2022	3,381		3,381
2021	3,813		3,813
2020	5,700		5,700
Prior	117,522		117,522
Revolving	0		0
Revolving to term	0		0
Total Loans	134,178		134,178
Early buy-out loans guaranteed by U.S. government agencies | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	3,762		3,762
2022	3,381		3,381
2021	3,813		3,813
2020	5,700		5,700
Prior	117,522		117,522
Revolving	0		0
Revolving to term	0		0
Total Loans	$ 134,178		$ 134,178

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Allowance for Credit Losses - Schedule of Held-to-Maturity Debt Securities by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized Cost	$ 3,756,415	$ 3,857,263	$ 3,564,879
Less: Allowance for credit losses	(491)	(347)	(406)
Held-to-maturity securities, net of allowance for credit losses	3,755,924	3,856,916	3,564,473
U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	156,875
2021	147,815
2020	25,000
Prior	6,768
Amortized Cost	336,458	336,468	339,604
U.S. government agencies | 1-4 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	156,875
2021	147,815
2020	25,000
Prior	6,768
Amortized Cost	336,458
U.S. government agencies | 5-7 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
U.S. government agencies | 8-10 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
Municipal
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	4,176
2022	1,035
2021	6,862
2020	258
Prior	154,069
Amortized Cost	166,400	$ 172,933	$ 176,128
Municipal | 1-4 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	4,176
2022	1,035
2021	6,862
2020	258
Prior	151,716
Amortized Cost	164,047
Municipal | 5-7 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	0
2021	0
2020	0
Prior	2,353
Amortized Cost	2,353
Municipal | 8-10 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
Mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	362,988
2022	555,653
2021	2,277,717
2020	0
Prior	0
Amortized Cost	3,196,358
Mortgage-backed securities | 1-4 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	362,988
2022	555,653
2021	2,277,717
2020	0
Prior	0
Amortized Cost	3,196,358
Mortgage-backed securities | 5-7 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
Mortgage-backed securities | 8-10 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
Corporate notes
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	14,968
2021	0
2020	6,005
Prior	36,226
Amortized Cost	57,199
Corporate notes | 1-4 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024	0
2023	0
2022	14,968
2021	0
2020	6,005
Prior	36,226
Amortized Cost	57,199
Corporate notes | 5-7 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	0
Corporate notes | 8-10 internal grade
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
2024
2023
2022
2021
2020
Prior
Amortized Cost	$ 0

XML

Allowance for Credit Losses - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for loan losses and unfunded lending-related commitments losses	$ 437,069	$ 427,175	$ 427,265	$ 387,380	$ 375,798	$ 357,448
Allowance for held-to-maturity securities losses	491		347	406
Allowance for credit losses	437,560		427,612	387,786
Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for loan losses and unfunded lending-related commitments losses	363,719		344,235	302,499
Unfunded lending-related commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for loan losses and unfunded lending-related commitments losses	73,350		83,030	84,881
Loans and unfunded lending-related commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for loan losses and unfunded lending-related commitments losses	$ 437,069		$ 427,265	$ 387,380

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Allowance for Credit Losses - Schedule of Activity in the Allowance for Credit Losses by Loan Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	$ 427,175	$ 375,798	$ 427,265	$ 357,448
Other adjustments	(19)	41	(50)	45
Charge-offs	(34,756)	(18,516)	(58,597)	(25,867)
Recoveries	4,770	1,486	6,861	3,372
Provision for credit losses	39,899	28,571	61,590	51,641
Allowance for credit losses at period end	437,069	387,380	437,069	387,380	$ 357,448
Accounting Standards Update [Extensible Enumeration]					Accounting Standards Update 2022-02 [Member]
Individually measured	37,290	13,130	37,290	13,130
Collectively measured	399,779	374,250	399,779	374,250
Loans at period end, individually evaluated for impairment	118,286	73,804	118,286	73,804
Loans at period end, collectively evaluated for impairment	44,421,411	40,749,157	44,421,411	40,749,157
Loans held-for-investment	135,834	200,447	135,834	$ 200,447
Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Accounting Standards Update [Extensible Enumeration]				Accounting Standards Update 2016-13
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				$ 741
Allowance for credit losses at period end					$ 741
Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	166,518	149,501	169,604	142,769
Other adjustments	0	0	0	0
Charge-offs	(9,584)	(5,629)	(20,799)	(8,172)
Recoveries	950	505	1,429	897
Provision for credit losses	24,107	(1,235)	31,757	7,537
Allowance for credit losses at period end	181,991	143,142	181,991	143,142	142,769
Individually measured	30,927	7,205	30,927	7,205
Collectively measured	151,064	135,937	151,064	135,937
Loans at period end, individually evaluated for impairment	51,087	40,460	51,087	40,460
Loans at period end, collectively evaluated for impairment	14,103,375	12,560,011	14,103,375	12,560,011
Loans held-for-investment	0	0	0	0
Commercial | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				111
Allowance for credit losses at period end					111
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	226,052	194,780	223,853	184,352
Other adjustments	0	0	0	0
Charge-offs	(15,526)	(8,124)	(20,995)	(8,129)
Recoveries	90	25	121	125
Provision for credit losses	13,112	29,015	20,749	37,992
Allowance for credit losses at period end	223,728	215,696	223,728	215,696	184,352
Individually measured	6,330	5,819	6,330	5,819
Collectively measured	217,398	209,877	217,398	209,877
Loans at period end, individually evaluated for impairment	48,289	18,483	48,289	18,483
Loans at period end, collectively evaluated for impairment	11,898,908	10,590,328	11,898,908	10,590,328
Loans held-for-investment	0	0	0	0
Commercial Real Estate | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				1,356
Allowance for credit losses at period end					1,356
Home  Equity
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	7,191	7,728	7,116	7,573
Other adjustments	0	0	0	0
Charge-offs	0	0	(74)	0
Recoveries	35	37	64	72
Provision for credit losses	16	(798)	136	(645)
Allowance for credit losses at period end	7,242	6,967	7,242	6,967	7,573
Individually measured	0	0	0	0
Collectively measured	7,242	6,967	7,242	6,967
Loans at period end, individually evaluated for impairment	1,100	1,361	1,100	1,361
Loans at period end, collectively evaluated for impairment	355,213	335,613	355,213	335,613
Loans held-for-investment	0	0	0	0
Home  Equity | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				(33)
Allowance for credit losses at period end					(33)
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	13,701	11,434	13,133	11,585
Other adjustments	0	0	0	0
Charge-offs	(23)	0	(61)	0
Recoveries	8	6	10	10
Provision for credit losses	(4,913)	812	(4,309)	1,349
Allowance for credit losses at period end	8,773	12,252	8,773	12,252	11,585
Individually measured	32	106	32	106
Collectively measured	8,741	12,146	8,741	12,146
Loans at period end, individually evaluated for impairment	17,807	13,496	17,807	13,496
Loans at period end, collectively evaluated for impairment	2,913,694	2,429,297	2,913,694	2,429,297
Loans held-for-investment	135,834	200,447	135,834	200,447
Residential real estate | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				(692)
Allowance for credit losses at period end					(692)
Premium Finance Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	13,330	11,955	13,069	10,671
Other adjustments	(19)	41	(50)	45
Charge-offs	(9,486)	(4,653)	(16,424)	(9,303)
Recoveries	3,663	890	5,190	2,213
Provision for credit losses	7,258	813	12,961	5,420
Allowance for credit losses at period end	14,746	9,046	14,746	9,046	10,671
Individually measured	0	0	0	0
Collectively measured	14,746	9,046	14,746	9,046
Loans at period end, individually evaluated for impairment	0	0	0	0
Loans at period end, collectively evaluated for impairment	15,062,868	14,801,971	15,062,868	14,801,971
Loans held-for-investment	0	0	0	0
Premium Finance Receivables | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				0
Allowance for credit losses at period end					0
Consumer and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period	383	400	490	498
Other adjustments	0	0	0	0
Charge-offs	(137)	(110)	(244)	(263)
Recoveries	24	23	47	55
Provision for credit losses	319	(36)	296	(12)
Allowance for credit losses at period end	589	277	589	277	498
Individually measured	1	0	1	0
Collectively measured	588	277	588	277
Loans at period end, individually evaluated for impairment	3	4	3	4
Loans at period end, collectively evaluated for impairment	87,353	31,937	87,353	31,937
Loans held-for-investment	$ 0	$ 0	$ 0	0
Consumer and Other | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses at beginning of period				$ (1)
Allowance for credit losses at period end					$ (1)

XML

Allowance for Credit Losses - Schedule of Modification of Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		13 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 2,588	$ 5,063	$ 5,065	$ 45,792	$ 10,836
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.10%
Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 2,115	$ 143	$ 3,455	$ 4,007
Duration of Extension of Term (months)	7 months	43 months	11 months	36 months
Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 3	$ 0	$ 171	$ 1,319
Reduction of  Interest Rate (bps)	1.40%	2.07%	1.56%	2.23%
Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 319		$ 319
Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	97	$ 0	954	$ 35,304
Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 54	$ 4,920	$ 166	$ 5,162
Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	34 months	0 months	34 months	0 months	34 months
Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	18 months	17 months	18 months	17 months	18 months
Commercial | Commercial, industrial and other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 2,161	$ 423	$ 3,219	$ 37,897	$ 4,685
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.30%
Commercial | Commercial, industrial and other | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 2,010	$ 0	$ 2,956	$ 1,938
Duration of Extension of Term (months)	5 months	41 months	8 months	15 months
Commercial | Commercial, industrial and other | Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 0	$ 221
Reduction of  Interest Rate (bps)	1.43%	1.44%	1.13%	1.08%
Commercial | Commercial, industrial and other | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0		$ 0
Commercial | Commercial, industrial and other | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	97	$ 0	97	$ 35,265
Commercial | Commercial, industrial and other | Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 54	$ 423	$ 166	$ 473
Commercial | Commercial, industrial and other | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	34 months	0 months	34 months	0 months	34 months
Commercial | Commercial, industrial and other | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	34 months	16 months	34 months	16 months	34 months
Commercial real estate | Non-construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 340	$ 4,376	$ 1,469	$ 5,709	$ 2,644
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.10%
Commercial real estate | Non-construction | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 21	$ 0	$ 293	$ 467
Duration of Extension of Term (months)	13 months	39 months	29 months	40 months
Commercial real estate | Non-construction | Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 0	$ 827
Reduction of  Interest Rate (bps)	0.00%	2.12%	0.00%	2.32%
Commercial real estate | Non-construction | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 319		$ 319
Commercial real estate | Non-construction | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0	857	$ 39
Commercial real estate | Non-construction | Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 4,376	$ 0	$ 4,376
Commercial real estate | Non-construction | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months	0 months
Commercial real estate | Non-construction | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	16 months	101 months	16 months	101 months	16 months
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 89	$ 203	$ 586
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.10%
Home equity | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 89	$ 203
Duration of Extension of Term (months)	0 months	0 months	12 months	12 months
Home equity | Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 0	$ 0
Reduction of  Interest Rate (bps)	0.00%	0.00%	0.00%	0.00%
Home equity | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0		$ 0
Home equity | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0	0	$ 0
Home equity | Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 0	$ 0
Home equity | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months		0 months		0 months
Home equity | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months	0 months
Home equity | Non-construction | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)		0 months		0 months
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 81	$ 264	$ 282	$ 1,972	$ 417
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.10%
Residential real estate | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 81	$ 143	$ 114	$ 1,396
Duration of Extension of Term (months)	12 months	123 months	19 months	57 months
Residential real estate | Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 168	$ 271
Reduction of  Interest Rate (bps)	0.00%	2.62%	2.01%	2.84%
Residential real estate | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0		$ 0
Residential real estate | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0	0	$ 0
Residential real estate | Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 121	$ 0	$ 305
Residential real estate | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months		0 months		0 months
Residential real estate | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months	0 months
Residential real estate | Non-construction | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)		0 months		0 months
Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 6	$ 0	$ 6	$ 11	$ 18
Percentage of Total Class of Loan	0.00%	0.00%	0.00%	0.00%
Premium finance receivables | Property and casualty insurance loans | Extension of Term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 3	$ 0	$ 3	$ 3
Duration of Extension of Term (months)	2 months	0 months	2 months	0 months
Premium finance receivables | Property and casualty insurance loans | Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 3	$ 0	$ 3	$ 0
Reduction of  Interest Rate (bps)	0.86%	0.00%	0.86%	0.50%
Premium finance receivables | Property and casualty insurance loans | Interest Only Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0		$ 0
Premium finance receivables | Property and casualty insurance loans | Delay in Contractual Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	$ 0	0	$ 0
Premium finance receivables | Property and casualty insurance loans | Extended of Term and Reduction of Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 0	$ 0	$ 0	$ 8
Premium finance receivables | Property and casualty insurance loans | Payment Deferral, Quarterly (QTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months	0 months
Premium finance receivables | Property and casualty insurance loans | Payment Deferral, Year-to-Date (YTD)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Duration of Delay in Contractual Payments (months)	0 months	0 months	0 months	0 months	0 months

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Allowance for Credit Losses - Schedule of Loans for Borrowers Experiencing Financial Difficulties Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		13 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	$ 2,588	$ 5,063	$ 5,065	$ 45,792	$ 10,836
Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	97	0	954	35,304
Post-modification loan balances, payments in default	2,821	20,407	4,625	20,407
Commercial | Commercial, industrial and other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	2,161	423	3,219	37,897	4,685
Commercial | Commercial, industrial and other | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	97	0	97	35,265
Post-modification loan balances, payments in default	1,784	18,729	1,784	18,729
Commercial real estate | Construction and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances				0	2,486
Commercial real estate | Construction and development | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances, payments in default	0	0	0	0
Commercial real estate | Non-construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	340	4,376	1,469	5,709	2,644
Commercial real estate | Non-construction | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	0	857	39
Post-modification loan balances, payments in default	639	923	2,443	923
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	0	89	203	586
Home equity | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	0	0	0
Post-modification loan balances, payments in default	0	203	0	203
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	81	264	282	1,972	417
Residential real estate | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	0	0	0
Post-modification loan balances, payments in default	384	541	384	541
Premium finance receivables | Property and casualty insurance loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	6	0	6	11	$ 18
Premium finance receivables | Property and casualty insurance loans | Payments in Default
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-modification loan balances	0	0	0	0
Post-modification loan balances, payments in default	$ 14	$ 11	$ 14	$ 11

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Goodwill and Other Acquisition-Related Intangible Assets - Schedule of Goodwill Assets by Reporting Unit (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 656,672
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	(717)
Ending balance	655,955
Community banking
Goodwill [Roll Forward]
Beginning balance	545,671
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	545,671
Specialty finance
Goodwill [Roll Forward]
Beginning balance	39,006
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	(717)
Ending balance	38,289
Wealth management
Goodwill [Roll Forward]
Beginning balance	71,995
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	$ 71,995

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Goodwill and Other Acquisition-Related Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Indefinite-lived Intangible Assets [Line Items]
Amortization of other acquisition-related intangible assets	$ 1,122	$ 1,499	$ 2,280	$ 2,734
Community banking | Core deposit intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets	10 years		10 years
Specialty finance
Indefinite-lived Intangible Assets [Line Items]
Goodwill decrease for foreign currency translation adjustments			$ 717
Specialty finance | Customer list intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets	18 years		18 years
Wealth management | Customer list and other intangibles
Indefinite-lived Intangible Assets [Line Items]
Amortization period in years, other intangible assets	10 years		10 years

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Goodwill and Other Acquisition-Related Intangible Assets - Schedule of Amortization of Finite-Lived Acquisition-Related Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Intangibles with finite lives
Accumulated amortization	$ (68,990)	$ (66,710)	$ (63,946)
Intangibles with indefinite lives
Gross carrying amount	89,597	89,599	89,599
Total other acquisition-related intangible assets, net	20,607	22,889	25,653
Community banking
Intangibles with indefinite lives
Total other acquisition-related intangible assets, net	13,340	14,881	16,574
Community banking | Trademark
Intangibles with indefinite lives
Carrying amount	5,800	5,800	5,800
Community banking | Core deposit intangibles
Intangibles with finite lives
Gross carrying amount	55,206	55,206	55,206
Accumulated amortization	(47,666)	(46,125)	(44,432)
Net carrying amount	7,540	9,081	10,774
Specialty finance | Customer list intangibles
Intangibles with finite lives
Gross carrying amount	1,961	1,963	1,963
Accumulated amortization	(1,861)	(1,837)	(1,813)
Net carrying amount	100	126	150
Wealth management | Customer list and other intangibles
Intangibles with finite lives
Gross carrying amount	26,630	26,630	26,630
Accumulated amortization	(19,463)	(18,748)	(17,701)
Net carrying amount	$ 7,167	$ 7,882	$ 8,929

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Goodwill and Other Acquisition-Related Intangible Assets - Schedule of Estimated Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Actual in six months ended June 30, 2024	$ 1,122	$ 1,499	$ 2,280	$ 2,734
Estimated remaining in 2024	2,021		2,021
Estimated—2025	3,482		3,482
Estimated—2026	2,772		2,772
Estimated—2027	2,156		2,156
Estimated—2028	$ 1,591		$ 1,591

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Mortgage Servicing Rights ("MSRs") (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Servicing Asset at Fair Value, Amount [Roll Forward]
Fair value at beginning of the period	$ 201,044	$ 224,470	$ 192,456	$ 230,225
Additions from loans sold with servicing retained	8,223	8,720	13,602	13,827
Servicing rights sold	0	(30,170)	0	(30,170)
Estimate of changes in fair value due to:
Payoffs, paydowns and repurchases	(5,534)	(5,043)	(9,920)	(8,952)
Changes in valuation inputs or assumptions	877	2,715	8,472	(4,238)
Fair value at end of the period	204,610	200,692	204,610	200,692
Unpaid principal balance of mortgage loans serviced for others	$ 12,211,027	$ 11,752,223	$ 12,211,027	$ 11,752,223

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Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Balance:
Non-interest-bearing	$ 10,031,440	$ 10,420,401	$ 10,604,915
NOW and interest-bearing demand deposits	5,053,909	5,797,649	5,814,836
Wealth management deposits	1,490,711	1,614,499	1,417,984
Money market	16,320,017	15,149,215	14,523,124
Savings	5,882,179	5,790,334	5,321,578
Time certificates of deposit	9,270,770	6,625,072	6,356,270
Total deposits	$ 48,049,026	$ 45,397,170	$ 44,038,707
Mix:
Non-interest-bearing	21.00%	23.00%	24.00%
NOW and interest-bearing demand deposits	11.00%	13.00%	13.00%
Wealth management deposits	3.00%	4.00%	3.00%
Money market	34.00%	33.00%	33.00%
Savings	12.00%	13.00%	12.00%
Time certificates of deposit	19.00%	14.00%	15.00%
Total deposits	100.00%	100.00%	100.00%

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FHLB Advances, Other Borrowings and Subordinated Notes - Schedule of FHLB Advances, Other Borrowings and Subordinated Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Debt Disclosure [Abstract]
FHLB advances	$ 3,176,309	$ 2,326,071	$ 2,026,071
Other borrowings:
Notes payable	157,024	171,282	185,539
Short-term borrowings	0	13,430	17,773
Secured borrowings	391,395	401,897	401,669
Other	58,160	59,204	60,238
Total other borrowings	606,579	645,813	665,219
Subordinated notes	298,113	437,866	437,628
Total FHLB advances, other borrowings and subordinated notes	$ 4,081,001	$ 3,409,750	$ 3,128,918

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FHLB Advances, Other Borrowings and Subordinated Notes - Narrative (Details) - USD ($)			3 Months Ended	6 Months Ended
	May 31, 2023	May 30, 2023	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2019
Debt Instrument [Line Items]
Secured borrowings			$ 391,395,000	$ 391,395,000	$ 401,669,000	$ 401,897,000
Outstanding subordinated notes			298,113,000	298,113,000	437,628,000	437,866,000
Repayments of subordinated notes				140,000,000	0
Collateral Pledged
Debt Instrument [Line Items]
Pledged financial instruments			0	0
Securities Sold under Agreements to Repurchase | Maturity Overnight
Debt Instrument [Line Items]
Securities sold under agreements to repurchase			0	0	16,300,000	13,400,000
Secured Debt
Debt Instrument [Line Items]
Secured borrowings			11,100,000	11,100,000	9,300,000	9,400,000
Fixed Rate Promissory Note
Debt Instrument [Line Items]
Principal amount of debt			$ 66,400,000	$ 66,400,000
Stated interest rate			1.70%	1.70%
Term Loan Facility
Debt Instrument [Line Items]
Amount outstanding			$ 157,000,000.0	$ 157,000,000.0
Revolving Credit Facility
Debt Instrument [Line Items]
Amount outstanding			0	0
Receivables Purchase Agreement | Secured Debt
Debt Instrument [Line Items]
Borrowing capacity	$ 520,000,000	$ 420,000,000
Borrowing fee rate	0.825%	0.775%
Secured borrowings			380,300,000	$ 380,300,000	$ 392,400,000	$ 392,500,000
Basis spread on variable rate				0.825%
4.85% subordinated notes maturing in June 2029 | Subordinated Debt
Debt Instrument [Line Items]
Stated interest rate							4.85%
5.00% subordinated notes maturing in June 2024
Debt Instrument [Line Items]
Repayments of subordinated notes			$ 140,000,000
5.00% subordinated notes maturing in June 2024 | Subordinated Debt
Debt Instrument [Line Items]
Stated interest rate			5.00%	5.00%

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Junior Subordinated Debentures - Schedule of Junior Subordinated Debentures (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566	$ 253,566	$ 253,566
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566	$ 253,600	$ 253,600
Weighted average contractual rate	7.79%
Junior Subordinated Debt | Wintrust Capital Trust III
Subordinated Borrowing [Line Items]
Common Securities	$ 774
Trust  Preferred Securities	25,000
Junior subordinated debentures	$ 25,774
Rate structure, stated	0.26161%
Rate structure, variable	3.25%
Weighted average contractual rate	8.84%
Junior Subordinated Debt | Wintrust Statutory Trust IV
Subordinated Borrowing [Line Items]
Common Securities	$ 619
Trust  Preferred Securities	20,000
Junior subordinated debentures	$ 20,619
Rate structure, stated	0.26161%
Rate structure, variable	2.80%
Weighted average contractual rate	8.39%
Junior Subordinated Debt | Wintrust Statutory Trust V
Subordinated Borrowing [Line Items]
Common Securities	$ 1,238
Trust  Preferred Securities	40,000
Junior subordinated debentures	$ 41,238
Rate structure, stated	0.26161%
Rate structure, variable	2.60%
Weighted average contractual rate	8.19%
Junior Subordinated Debt | Wintrust Capital Trust VII
Subordinated Borrowing [Line Items]
Common Securities	$ 1,550
Trust  Preferred Securities	50,000
Junior subordinated debentures	$ 51,550
Rate structure, stated	0.26161%
Rate structure, variable	1.95%
Weighted average contractual rate	7.55%
Junior Subordinated Debt | Wintrust Capital Trust VIII
Subordinated Borrowing [Line Items]
Common Securities	$ 1,238
Trust  Preferred Securities	25,000
Junior subordinated debentures	$ 26,238
Rate structure, stated	0.26161%
Rate structure, variable	1.45%
Weighted average contractual rate	7.04%
Junior Subordinated Debt | Wintrust Capital Trust IX
Subordinated Borrowing [Line Items]
Common Securities	$ 1,547
Trust  Preferred Securities	50,000
Junior subordinated debentures	$ 51,547
Rate structure, stated	0.26161%
Rate structure, variable	1.63%
Weighted average contractual rate	7.23%
Junior Subordinated Debt | Northview Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 186
Trust  Preferred Securities	6,000
Junior subordinated debentures	$ 6,186
Rate structure, stated	0.26161%
Rate structure, variable	3.00%
Weighted average contractual rate	8.59%
Junior Subordinated Debt | Town Bankshares Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 186
Trust  Preferred Securities	6,000
Junior subordinated debentures	$ 6,186
Rate structure, stated	0.26161%
Rate structure, variable	3.00%
Weighted average contractual rate	8.59%
Junior Subordinated Debt | First Northwest Capital Trust I
Subordinated Borrowing [Line Items]
Common Securities	$ 155
Trust  Preferred Securities	5,000
Junior subordinated debentures	$ 5,155
Rate structure, stated	0.26161%
Rate structure, variable	3.00%
Weighted average contractual rate	8.59%
Junior Subordinated Debt | Suburban Illinois Capital Trust II
Subordinated Borrowing [Line Items]
Common Securities	$ 464
Trust  Preferred Securities	15,000
Junior subordinated debentures	$ 15,464
Rate structure, stated	0.26161%
Rate structure, variable	1.75%
Weighted average contractual rate	7.35%
Junior Subordinated Debt | Community Financial Shares Statutory Trust II
Subordinated Borrowing [Line Items]
Common Securities	$ 109
Trust  Preferred Securities	3,500
Junior subordinated debentures	$ 3,609
Rate structure, stated	0.26161%
Rate structure, variable	1.62%
Weighted average contractual rate	7.22%

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Junior Subordinated Debentures - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566	$ 253,566	$ 253,566
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated debentures	$ 253,566	$ 253,600	$ 253,600
Weighted average contractual rate	7.79%

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Segment Information - Narrative (Details)	6 Months Ended
	Jun. 30, 2024 segment subsidiary
Segment Reporting Information [Line Items]
Number of reportable segments	3
Number of subsidiaries | subsidiary	15
Community banking
Segment Reporting Information [Line Items]
Number of reportable segments	1

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Segment Information - Schedule of Operating Information for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Net interest income:
Net interest income	$ 470,610	$ 447,537	$ 934,804	$ 905,532
Net interest income, change in contribution	$ 23,073		$ 29,272
Net interest income, percent change in contribution	5.00%		3.00%
Provision for credit losses:
Provision for credit losses	$ 40,061	28,514	$ 61,734	51,559
Provision for credit losses, change in contribution	$ 11,547		$ 10,175
Provision for credit losses, percent change in contribution	40.00%		20.00%
Non-interest income:
Non-interest income	$ 121,147	113,030	$ 261,727	220,799
Non-interest income, change in contribution	$ 8,117		$ 40,928
Non-interest income, percent change in contribution	7.00%		19.00%
Net revenue:
Net revenue	$ 591,757	560,567	$ 1,196,531	1,126,331
Net revenue, change in contribution	$ 31,190		$ 70,200
Net revenue, percent change in contribution	6.00%		6.00%
Segment profit:
Segment profit	$ 152,388	154,750	$ 339,682	334,948
Segment profit, change in contribution	$ (2,362)		$ 4,734
Segment profit, percent change in contribution	(2.00%)		10.00%
Segment assets:
Segment assets	$ 59,781,516	54,286,176	$ 59,781,516	54,286,176	$ 56,259,934
Segment assets, change in contribution	$ 5,495,340
Segment assets, percent change in contribution	10.00%
Community banking
Segment profit:
Segment profit	$ 91,235	102,517	211,282	236,749
Segment profit, change in contribution	$ (11,282)		$ (25,467)
Segment profit, percent change in contribution	(11.00%)		12.00%
Segment assets:
Segment assets	$ 47,611,508	42,452,673	$ 47,611,508	42,452,673
Segment assets, change in contribution	$ 5,158,835
Segment assets, percent change in contribution	12.00%
Specialty finance
Segment profit:
Segment profit	$ 53,091	46,402	95,614	83,139
Segment profit, change in contribution	$ 6,689		$ 12,475
Segment profit, percent change in contribution	14.00%		4.00%
Segment assets:
Segment assets	$ 11,014,840	10,549,819	$ 11,014,840	10,549,819
Segment assets, change in contribution	$ 465,021
Segment assets, percent change in contribution	4.00%
Wealth management
Segment profit:
Segment profit	$ 8,062	5,831	32,786	15,060
Segment profit, change in contribution	$ 2,231		$ 17,726
Segment profit, percent change in contribution	38.00%		(10.00%)
Segment assets:
Segment assets	$ 1,155,168	1,283,684	$ 1,155,168	1,283,684
Segment assets, change in contribution	$ (128,516)
Segment assets, percent change in contribution	(10.00%)
Operating Segments
Net interest income:
Net interest income	$ 461,951	438,629	915,676	887,783
Net interest income, change in contribution	$ 23,322		$ 27,893
Net interest income, percent change in contribution	5.00%		3.00%
Provision for credit losses:
Provision for credit losses	$ 40,061	28,514	$ 61,734	51,559
Provision for credit losses, change in contribution	$ 11,547		$ 10,175
Provision for credit losses, percent change in contribution	40.00%		20.00%
Non-interest income:
Non-interest income	$ 139,541	133,258	$ 299,979	258,078
Non-interest income, change in contribution	$ 6,283		$ 41,901
Non-interest income, percent change in contribution	5.00%		16.00%
Net revenue:
Net revenue	$ 601,492	571,887	$ 1,215,655	1,145,861
Net revenue, change in contribution	$ 29,605		$ 69,794
Net revenue, percent change in contribution	5.00%		6.00%
Operating Segments | Community banking
Net interest income:
Net interest income	$ 358,832	346,232	$ 722,517	716,080
Net interest income, change in contribution	$ 12,600		$ 6,437
Net interest income, percent change in contribution	4.00%		1.00%
Provision for credit losses:
Provision for credit losses	$ 36,325	26,713	$ 56,717	47,812
Provision for credit losses, change in contribution	$ 9,612		$ 8,905
Provision for credit losses, percent change in contribution	36.00%		19.00%
Non-interest income:
Non-interest income	$ 71,619	68,130	$ 146,255	136,863
Non-interest income, change in contribution	$ 3,489		$ 9,392
Non-interest income, percent change in contribution	5.00%		7.00%
Net revenue:
Net revenue	$ 430,451	414,362	$ 868,772	852,943
Net revenue, change in contribution	$ 16,089		$ 15,829
Net revenue, percent change in contribution	4.00%		2.00%
Operating Segments | Specialty finance
Net interest income:
Net interest income	$ 95,191	84,993	$ 177,473	155,344
Net interest income, change in contribution	$ 10,198		$ 22,129
Net interest income, percent change in contribution	12.00%		14.00%
Provision for credit losses:
Provision for credit losses	$ 3,736	1,801	$ 5,017	3,747
Provision for credit losses, change in contribution	$ 1,935		$ 1,270
Provision for credit losses, percent change in contribution	107.00%		34.00%
Non-interest income:
Non-interest income	$ 32,317	31,737	$ 59,634	57,527
Non-interest income, change in contribution	$ 580		$ 2,107
Non-interest income, percent change in contribution	2.00%		4.00%
Net revenue:
Net revenue	$ 127,508	116,730	$ 237,107	212,871
Net revenue, change in contribution	$ 10,778		$ 24,236
Net revenue, percent change in contribution	9.00%		11.00%
Operating Segments | Wealth management
Net interest income:
Net interest income	$ 7,928	7,404	$ 15,686	16,359
Net interest income, change in contribution	$ 524		$ (673)
Net interest income, percent change in contribution	7.00%		(4.00%)
Provision for credit losses:
Provision for credit losses	$ 0	0	$ 0	0
Provision for credit losses, change in contribution	$ 0		$ 0
Provision for credit losses, percent change in contribution	0.00%		0.00%
Non-interest income:
Non-interest income	$ 35,605	33,391	$ 94,090	63,688
Non-interest income, change in contribution	$ 2,214		$ 30,402
Non-interest income, percent change in contribution	7.00%		48.00%
Net revenue:
Net revenue	$ 43,533	40,795	$ 109,776	80,047
Net revenue, change in contribution	$ 2,738		$ 29,729
Net revenue, percent change in contribution	7.00%		37.00%
Intersegment Eliminations
Net interest income:
Net interest income	$ 8,659	8,908	$ 19,128	17,749
Net interest income, change in contribution	$ (249)		$ 1,379
Net interest income, percent change in contribution	(3.00%)		8.00%
Provision for credit losses:
Provision for credit losses	$ 0	0	$ 0	0
Provision for credit losses, change in contribution	$ 0		$ 0
Provision for credit losses, percent change in contribution	0.00%		0.00%
Non-interest income:
Non-interest income	$ (18,394)	(20,228)	$ (38,252)	(37,279)
Non-interest income, change in contribution	$ 1,834		$ (973)
Non-interest income, percent change in contribution	(9.00%)		3.00%
Net revenue:
Net revenue	$ (9,735)	$ (11,320)	$ (19,124)	$ (19,530)
Net revenue, change in contribution	$ 1,585		$ 406
Net revenue, percent change in contribution	(14.00%)		(2.00%)

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Derivative Financial Instruments - Schedule of Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Derivative [Line Items]
Derivative Assets	$ 243,860	$ 275,726	$ 294,748
Derivative Liabilities	317,659	267,255	391,172
Interest rate derivatives
Derivative [Line Items]
Derivative Assets	235,485	263,955	279,614
Derivative Liabilities	313,982	255,126	382,413
Designated as hedging instrument
Derivative [Line Items]
Derivative Assets	20,210	52,465	18,409
Derivative Liabilities	96,825	44,729	121,347
Designated as hedging instrument | Interest rate derivatives | Interest rate derivatives designated as Cash Flow Hedges
Derivative [Line Items]
Derivative Assets	7,532	40,116	2,154
Derivative Liabilities	96,825	44,456	121,347
Designated as hedging instrument | Interest rate derivatives | Interest rate derivatives designated as Fair Value Hedges
Derivative [Line Items]
Derivative Assets	12,678	12,349	16,255
Derivative Liabilities	0	273	0
Not designated as hedging instrument
Derivative [Line Items]
Derivative Assets	223,650	223,261	276,339
Derivative Liabilities	220,834	222,526	269,825
Not designated as hedging instrument | Interest rate derivatives
Derivative [Line Items]
Derivative Assets	215,275	211,490	261,205
Derivative Liabilities	217,157	210,397	261,066
Not designated as hedging instrument | Interest rate lock commitments
Derivative [Line Items]
Derivative Assets	4,795	4,511	3,487
Derivative Liabilities	67	0	172
Not designated as hedging instrument | Forward commitments to sell mortgage loans
Derivative [Line Items]
Derivative Assets	102	0	2,769
Derivative Liabilities	597	5,212	38
Not designated as hedging instrument | Commodity forward contracts
Derivative [Line Items]
Derivative Assets	702	888	434
Derivative Liabilities	304	609	214
Not designated as hedging instrument | Foreign exchange contracts
Derivative [Line Items]
Derivative Assets	2,776	6,372	8,444
Derivative Liabilities	$ 2,709	$ 6,308	$ 8,335

XML

Derivative Financial Instruments - Schedule of Cash Flow Hedging Instruments (Details) - Designated as hedging instrument - Cash Flow Hedging $ in Thousands	Jun. 30, 2024 USD ($)
Derivative [Line Items]
Notional Amount	$ 6,700,000
Fair Value Asset (Liability)	(89,294)
Buy 2.250% floor, sell 3.743% cap; matures September 2025
Derivative [Line Items]
Notional Amount	1,250,000
Fair Value Asset (Liability)	$ (16,589)
Derivative floor rate	0.02250
Derivative cap rate	0.03743
Buy 2.750% floor, sell 4.320% cap; matures October 2026
Derivative [Line Items]
Notional Amount	$ 500,000
Fair Value Asset (Liability)	$ (4,740)
Derivative floor rate	0.02750
Derivative cap rate	0.04320
Buy 2.000% floor, sell 3.450% cap; matures September 2027
Derivative [Line Items]
Notional Amount	$ 1,250,000
Fair Value Asset (Liability)	$ (37,289)
Derivative floor rate	0.02000
Derivative cap rate	0.03450
Fixed 3.748%; matures December 2025
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (3,114)
Derivative fixed interest rate	3.748%
Fixed 3.759%; matures December 2025
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (3,075)
Derivative fixed interest rate	3.759%
Fixed 3.680%; matures February 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (3,735)
Derivative fixed interest rate	3.68%
Fixed 4.176%; matures March 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (1,773)
Derivative fixed interest rate	4.176%
Fixed 3.915%; matures March 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (2,826)
Derivative fixed interest rate	3.915%
Fixed 4.450%; matures July 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (206)
Derivative fixed interest rate	4.45%
Fixed 3.515%, matures December 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (4,597)
Derivative fixed interest rate	3.515%
Fixed 3.512%; matures December 2026
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (4,614)
Derivative fixed interest rate	3.512%
Fixed 3.453%; matures February 2027
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (5,369)
Derivative fixed interest rate	3.453%
Fixed 4.150%; matures July 2027
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (591)
Derivative fixed interest rate	4.15%
Fixed 3.748%; matures March 2028
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (3,203)
Derivative fixed interest rate	3.748%
Fixed 3.526%; matures March 2028
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ (5,104)
Derivative fixed interest rate	3.526%
Fixed 3.993%; matures October 2029
Derivative [Line Items]
Notional Amount	$ 100,000
Fair Value Asset (Liability)	$ 444
Derivative fixed interest rate	3.993%
Fixed 3.993%; matures October 2029
Derivative [Line Items]
Notional Amount	$ 250,000
Fair Value Asset (Liability)	$ 1,111
Derivative fixed interest rate	3.993%
Fixed 4.245%; matures November 2029
Derivative [Line Items]
Notional Amount	$ 175,000
Fair Value Asset (Liability)	$ 2,988
Derivative fixed interest rate	4.245%
Fixed 4.245%; matures November 2029
Derivative [Line Items]
Notional Amount	$ 175,000
Fair Value Asset (Liability)	$ 2,988
Derivative fixed interest rate	4.245%

XML

Derivative Financial Instruments - Narrative (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2022 USD ($) derivativeInstrument	Mar. 31, 2022 USD ($)	Jun. 30, 2024 USD ($) derivativeInstrument	Dec. 31, 2023 USD ($) derivativeInstrument	Jun. 30, 2023 derivativeInstrument	Jun. 30, 2022 USD ($) derivativeInstrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount to be reclassified from accumulated other comprehensive income to interest income (expense) in the next twelve months			$ (60,600,000)
Net derivative liability position, aggregate fair value			0
Interest Rate Swap Terminated
Derivative Instruments, Gain (Loss) [Line Items]
Amount to be reclassified from accumulated other comprehensive income to interest income (expense) in the next twelve months			13,300,000
Interest Rate Swap And Collar
Derivative Instruments, Gain (Loss) [Line Items]
Amount to be reclassified from accumulated other comprehensive income to interest income (expense) in the next twelve months			(73,900,000)
Mortgage banking derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			$ 170,000,000.0	$ 195,000,000.0
Number of derivative instruments held | derivativeInstrument			6	4
Not designated as hedging instrument | Interest rate contract
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			$ 0
Not designated as hedging instrument | Interest rate contract, qualified borrowers
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			12,200,000,000	$ 11,400,000,000
Not designated as hedging instrument | Interest rate lock commitments
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			237,900,000	129,900,000
Not designated as hedging instrument | Forward commitments to sell mortgage loans
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			641,300,000	626,900,000
Not designated as hedging instrument | Commodity forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			12,600,000	8,400,000
Not designated as hedging instrument | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			$ 138,800,000	$ 144,300,000
Not designated as hedging instrument | Covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Number of derivative instruments held | derivativeInstrument			0	0	0
Interest rate derivatives designated as Cash Flow Hedges | Designated as hedging instrument
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			$ 6,700,000,000
Interest rate derivatives designated as Cash Flow Hedges | Designated as hedging instrument | Interest Rate Swap Terminated
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount		$ 1,000,000,000				$ 500,000,000
Derivative term		5 years
Fair value of derivative contracts		$ 66,500,000
Number of derivative instruments held | derivativeInstrument						2
Interest rate derivatives designated as Cash Flow Hedges | Designated as hedging instrument | Interest Rate Swap Terminated, Original Swap Maturing March 2023
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of derivative contracts						$ 3,700,000
Interest rate derivatives designated as Cash Flow Hedges | Designated as hedging instrument | Interest Rate Swap Terminated, Original Swap Maturing April 2024
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of derivative contracts						$ 10,700,000
Interest rate derivatives designated as Cash Flow Hedges | Designated as hedging instrument | Interest Rate Collar Terminated
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 64,300,000
Fair value of derivative contracts	$ 875,000
Number of derivative instruments terminated | derivativeInstrument	1
Interest rate derivatives designated as Fair Value Hedges | Designated as hedging instrument | Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount			$ 213,100,000
Number of interest rate derivatives | derivativeInstrument			13

XML

Derivative Financial Instruments - Schedule of Amounts in Accumulated Other Comprehensive Income Related to Interest Rate Swaps Designated as Cash Flow Hedges (Details) - Interest rate contract - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Rollforward of AOCI from Cash Flow Hedging Derivatives [Roll Forward]
Unrealized gain at beginning of period	$ (38,553)	$ 44,692	$ 43,538	$ 10,026
Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings	20,524	14,267	40,342	18,014
Amount of loss recognized in other comprehensive income or loss	(31,367)	(120,698)	(133,276)	(89,779)
Unrealized (loss) gain at end of period	$ (49,396)	$ (61,739)	$ (49,396)	$ (61,739)

XML

Derivative Financial Instruments - Schedule of Carrying Amount of Hedged Assets/(Liabilities (Details) - Designated as Hedging Instrument - Interest rate swaps $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)
Interest and fees on loans
Derivative [Line Items]
Location of (Loss)/Gain Recognized in Income on Derivative	$ (16)	$ (6)
Interest income - investment securities
Derivative [Line Items]
Location of (Loss)/Gain Recognized in Income on Derivative	0	0
Loans, net of unearned income
Derivative [Line Items]
Carrying Amount of the Hedged Assets/(Liabilities)	199,732	199,732
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)	(12,684)	(12,684)
Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued	(69)	(69)
Available-for-sale debt securities
Derivative [Line Items]
Carrying Amount of the Hedged Assets/(Liabilities)	672	672
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)	(18)	(18)
Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued	$ 0	$ 0

XML

Derivative Financial Instruments - Schedule of Consolidated Statement of Income Related to Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Interest rate swaps and caps | Trading gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (102)	$ 12	$ 493	$ 812
Mortgage banking derivatives | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	3,721	4,791	3,706	8,431
Commodity contracts | Trading gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	130	49	398	226
Foreign exchange contracts | Trading gains, net
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	11	0	19	0
Covered call options | Fees from covered call options
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	2,056	2,578	6,903	12,969
Derivative contract held as economic hedge on MSRs | Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivative instruments	$ (772)	$ (726)	$ (3,349)	$ 220

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Derivative Financial Instruments - Schedule of Offsetting Assets / Offsetting Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Derivative Assets
Gross Amounts Recognized	$ 243,860	$ 275,726	$ 294,748
Derivative Liabilities
Gross Amounts Recognized	317,659	267,255	391,172
Interest rate contract
Derivative Assets
Gross Amounts Recognized	235,485	263,955	279,614
Less: Amounts offset in the Statements of Condition	0	0	0
Net amount presented in the Statements of Condition	235,485	263,955	279,614
Offsetting Derivative Positions	(114,662)	(76,514)	(125,159)
Collateral Posted	(85,762)	(144,899)	(145,735)
Net Credit Exposure	35,061	42,542	8,720
Derivative Liabilities
Gross Amounts Recognized	313,982	255,126	382,413
Less: Amounts offset in the Statements of Condition	0	0	0
Net amount presented in the Statements of Condition	313,982	255,126	382,413
Offsetting Derivative Positions	(114,662)	(76,514)	(125,159)
Collateral Posted	0	0	0
Net Credit Exposure	$ 199,320	$ 178,612	$ 257,254

XML

Fair Values of Assets and Liabilities - Narrative (Details)	6 Months Ended
	Jun. 30, 2024 USD ($) $ / shares	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 4,329,957,000		$ 3,502,915,000	$ 3,492,481,000
Loans held-for-investment	135,834,000			200,447,000
MSRs	204,610,000	$ 201,044,000	192,456,000	200,692,000	$ 224,470,000	$ 230,225,000
Individually assessed loans - foreclosure probable and collateral-dependent	118,286,000			73,804,000
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,329,957,000		3,502,915,000	3,492,481,000
Remaining contractual principal balance outstanding, mortgage loans held-for-sale	414,100,000		291,700,000	345,700,000
Remaining contractual principal balance outstanding, mortgage loans held-for-investment	136,100,000		156,900,000	196,600,000
Non-performing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale classified as nonaccrual	2,100,000		649,000	582,000
Mortgage loans held-for-sale classified greater than 90 days past due and still accruing	$ 39,400,000		26,600,000	29,600,000
Weighted Average | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Life of loans	5 years 10 months 24 days
Appraisal adjustment - cost of sale | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned, measurement input	0.10
Measured at fair value on a recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale	$ 411,851,000		292,722,000	338,728,000
Loans held-for-investment	135,834,000		155,261,000	193,953,000
MSRs	204,610,000		192,456,000	200,692,000
Derivative assets	243,860,000		275,726,000	294,748,000
Measured at fair value on a non-recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,286,000
Other real estate owned	19,731,000
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,300,000
Level 3 | Portion at Other than Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	0
Level 3 | Measured at fair value on a recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held-for-sale	40,545,000		26,835,000	29,406,000
Loans held-for-investment	45,721,000		60,670,000	61,123,000
MSRs	204,610,000		192,456,000	200,692,000
Derivative assets	$ 4,795,000		4,510,000	3,487,000
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Weighted Average | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0.1098
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Weighted Average | Mortgage loans held-for-sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0683
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Weighted Average | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0683
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Weighted Average | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.1098
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Minimum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0.01
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Minimum | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.01
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Maximum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0.36
Level 3 | Measured at fair value on a recurring basis: | Discount rate | Maximum | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.36
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Weighted Average | Mortgage loans held-for-sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0036
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Weighted Average | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0110
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Minimum | Mortgage loans held-for-sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Minimum | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Maximum | Mortgage loans held-for-sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.13
Level 3 | Measured at fair value on a recurring basis: | Credit discount | Maximum | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.17
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Weighted Average | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0.0786
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Weighted Average | Loans held-for-investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0786
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Weighted Average | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.0786
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Minimum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Minimum | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Maximum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	0.90
Level 3 | Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) | Maximum | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	0.90
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing | Weighted Average | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	77
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing | Minimum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input | $ / shares	70
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing | Maximum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input | $ / shares	200
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Weighted Average | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input	361
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Minimum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input | $ / shares	200
Level 3 | Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Maximum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs, measurement input | $ / shares	1,000
Level 3 | Measured at fair value on a recurring basis: | Pull-through rate | Weighted Average | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, measurement input	0.8117
Level 3 | Measured at fair value on a recurring basis: | Pull-through rate | Minimum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, measurement input	0.04
Level 3 | Measured at fair value on a recurring basis: | Pull-through rate | Maximum | Discounted cash flows
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, measurement input	1
Level 3 | Measured at fair value on a non-recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	$ 118,286,000
Other real estate owned	19,731,000
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	146,608,000		140,958,000	167,411,000
Municipal securities | Measured at fair value on a recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	146,608,000		140,958,000	167,411,000
Municipal securities | Level 3 | Measured at fair value on a recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 95,792,000		$ 86,237,000	$ 114,155,000

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Fair Values of Assets and Liabilities - Schedule of Balances of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 4,329,957		$ 3,502,915	$ 3,492,481
Equity securities with readily determinable fair value	112,173		139,268	116,275
Loans held-for-investment	135,834			200,447
MSRs	204,610	$ 201,044	192,456	200,692	$ 224,470	$ 230,225
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,712		6,968	0
U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	45,192		45,124	74,275
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	146,608		140,958	167,411
Measured at fair value on a recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	4,134		4,707	3,027
Equity securities with readily determinable fair value	112,173		139,268	116,275
Mortgage loans held-for-sale	411,851		292,722	338,728
Loans held-for-investment	135,834		155,261	193,953
MSRs	204,610		192,456	200,692
Nonqualified deferred compensation assets	16,041		15,238	14,796
Derivative assets	243,860		275,726	294,748
Total	5,458,460		4,578,293	4,654,700
Derivative liabilities	317,659		267,255	391,172
Measured at fair value on a recurring basis: | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	0		0	0
Equity securities with readily determinable fair value	104,107		131,202	108,209
Mortgage loans held-for-sale	0		0	0
Loans held-for-investment	0		0	0
MSRs	0		0	0
Nonqualified deferred compensation assets	0		0	0
Derivative assets	0		0	0
Total	206,819		138,170	108,209
Derivative liabilities	0		0	0
Measured at fair value on a recurring basis: | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	4,134		4,707	3,027
Equity securities with readily determinable fair value	8,066		8,066	8,066
Mortgage loans held-for-sale	371,306		265,887	309,322
Loans held-for-investment	90,113		94,591	132,830
MSRs	0		0	0
Nonqualified deferred compensation assets	16,041		15,238	14,796
Derivative assets	239,065		271,216	291,261
Total	4,860,178		4,069,415	4,137,628
Derivative liabilities	317,659		267,255	391,172
Measured at fair value on a recurring basis: | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account securities	0		0	0
Equity securities with readily determinable fair value	0		0	0
Mortgage loans held-for-sale	40,545		26,835	29,406
Loans held-for-investment	45,721		60,670	61,123
MSRs	204,610		192,456	200,692
Nonqualified deferred compensation assets	0		0	0
Derivative assets	4,795		4,510	3,487
Total	391,463		370,708	408,863
Derivative liabilities	0		0	0
Measured at fair value on a recurring basis: | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,712		6,968	0
Measured at fair value on a recurring basis: | U.S. Treasury | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,712		6,968	0
Measured at fair value on a recurring basis: | U.S. Treasury | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | U.S. Treasury | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	45,192		45,124	74,275
Measured at fair value on a recurring basis: | U.S. government agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | U.S. government agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	45,192		45,124	74,275
Measured at fair value on a recurring basis: | U.S. government agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Mortgage loans held-for-sale	40,545
Measured at fair value on a recurring basis: | Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	146,608		140,958	167,411
Measured at fair value on a recurring basis: | Municipal securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | Municipal securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	50,816		54,721	53,256
Measured at fair value on a recurring basis: | Municipal securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	95,792		86,237	114,155
Measured at fair value on a recurring basis: | Corporate notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	77,975		76,531	72,060
Measured at fair value on a recurring basis: | Corporate notes | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | Corporate notes | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	77,975		76,531	72,060
Measured at fair value on a recurring basis: | Corporate notes | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | Mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	3,957,470		3,233,334	3,178,735
Measured at fair value on a recurring basis: | Mortgage-backed | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0	0
Measured at fair value on a recurring basis: | Mortgage-backed | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	3,957,470		3,233,334	3,178,735
Measured at fair value on a recurring basis: | Mortgage-backed | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 0		$ 0	$ 0

XML

Fair Values of Assets and Liabilities - Schedule of Changes In Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Municipal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 88,219	$ 112,257	$ 86,237	$ 117,537
Net income	0	0	0	0
Other comprehensive income or loss	(680)	(3,161)	(2,668)	(4,823)
Purchases	9,682	6,978	18,066	11,396
Issuances			0
Sales		0	0	0
Settlements	(1,429)	(1,919)	(5,843)	(9,955)
Net transfers into Level 3	0	0	0	0
Ending balance	95,792	114,155	95,792	114,155
Mortgage loans held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	33,726	44,250	26,835	48,655
Net income	205	402	272	868
Other comprehensive income or loss	0	0	0	0
Purchases	0	0	0	0
Issuances			0
Sales		0	0	0
Settlements	(10,269)	(23,973)	(20,609)	(42,592)
Net transfers into Level 3	16,883	8,727	34,047	22,475
Ending balance	40,545	29,406	40,545	29,406
Loans held-for- investment
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	49,317	69,493	60,670	84,165
Net income	66	(619)	(251)	(255)
Other comprehensive income or loss	0	0	0	0
Purchases	0	0	0	0
Issuances			0
Sales		0	0	0
Settlements	(7,709)	(16,593)	(23,512)	(36,915)
Net transfers into Level 3	4,047	8,842	8,814	14,128
Ending balance	45,721	61,123	45,721	61,123
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	201,044	224,470	192,456	230,225
Net income	3,566	6,392	12,154	637
Other comprehensive income or loss	0	0	0	0
Purchases	0	0	0	0
Issuances			0
Sales		(30,170)	0	(30,170)
Settlements	0	0	0	0
Net transfers into Level 3	0	0	0	0
Ending balance	204,610	200,692	204,610	200,692
Derivative assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	6,212	5,356	4,510	1,711
Net income	(1,417)	(1,869)	285	1,776
Other comprehensive income or loss	0	0	0	0
Purchases	0	0	0	0
Issuances			0
Sales		0	0	0
Settlements	0	0	0	0
Net transfers into Level 3	0	0	0	0
Ending balance	$ 4,795	$ 3,487	$ 4,795	$ 3,487

XML

Fair Values of Assets and Liabilities - Schedule of Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	$ 118,286	$ 118,286	$ 73,804
Fair value losses - individually assessed loans - foreclosure probable and collateral-dependent	25,113	41,839
Fair value losses - other real estate owned	0	207
Fair value losses	25,113	42,046
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,300	118,300
Measured at fair value on a non-recurring basis:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,286	118,286
Other real estate owned	19,731	19,731
Total	138,017	138,017
Measured at fair value on a non-recurring basis: | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	0	0
Other real estate owned	0	0
Total	0	0
Measured at fair value on a non-recurring basis: | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	0	0
Other real estate owned	0	0
Total	0	0
Measured at fair value on a non-recurring basis: | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,286	118,286
Other real estate owned	19,731	19,731
Total	$ 138,017	$ 138,017

XML

Fair Values of Assets and Liabilities - Schedule of Valuation Techniques and Significant Unobservable Inputs Used to Measure Both Recurring and Non Recurring (Details)	Jun. 30, 2024 USD ($) $ / shares year	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	$ 4,329,957,000		$ 3,502,915,000	$ 3,492,481,000
Loans held-for-investment	135,834,000			200,447,000
MSRs	204,610,000	$ 201,044,000	192,456,000	200,692,000	$ 224,470,000	$ 230,225,000
Individually assessed loans - foreclosure probable and collateral-dependent	118,286,000			73,804,000
Municipal securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	146,608,000		140,958,000	167,411,000
U.S. government agencies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	45,192,000		45,124,000	74,275,000
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,300,000
Measured at fair value on a recurring basis:
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale	411,851,000		292,722,000	338,728,000
Loans held-for-investment	135,834,000		155,261,000	193,953,000
MSRs	204,610,000		192,456,000	200,692,000
Derivative assets	243,860,000		275,726,000	294,748,000
Measured at fair value on a recurring basis: | Municipal securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	146,608,000		140,958,000	167,411,000
Measured at fair value on a recurring basis: | U.S. government agencies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	45,192,000		45,124,000	74,275,000
Measured at fair value on a recurring basis: | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale	40,545,000		26,835,000	29,406,000
Loans held-for-investment	45,721,000		60,670,000	61,123,000
MSRs	204,610,000		192,456,000	200,692,000
Derivative assets	4,795,000		4,510,000	3,487,000
Measured at fair value on a recurring basis: | Level 3 | Municipal securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	95,792,000		86,237,000	114,155,000
Measured at fair value on a recurring basis: | Level 3 | U.S. government agencies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Available-for-sale securities	0		$ 0	$ 0
Mortgage loans held-for-sale	$ 40,545,000
Measured at fair value on a recurring basis: | Discount rate | Level 3 | Discounted cash flows
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale, measurement input	0.0683
Measured at fair value on a recurring basis: | Discount rate | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input	0.0675
MSRs, measurement input	0.01
Measured at fair value on a recurring basis: | Discount rate | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input	0.0683
MSRs, measurement input	0.36
Measured at fair value on a recurring basis: | Discount rate | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale, measurement input	0.0683
Loans held-for-investment, measurement input	0.0683
MSRs, measurement input	0.1098
Measured at fair value on a recurring basis: | Credit discount | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale, measurement input	0
Loans held-for-investment, measurement input	0
Measured at fair value on a recurring basis: | Credit discount | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale, measurement input	0.13
Loans held-for-investment, measurement input	0.17
Measured at fair value on a recurring basis: | Credit discount | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held-for-sale, measurement input	0.0036
Loans held-for-investment, measurement input	0.0110
Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) - current loans | Level 3 | Discounted cash flows
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input	0.0786
Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) - current loans | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input	0
Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) - current loans | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input	0.90
Measured at fair value on a recurring basis: | Constant prepayment rate (CPR) - current loans | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input	0.0786
MSRs, measurement input	0.0786
Measured at fair value on a recurring basis: | Average life - delinquent loans (in years) | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input | year	1.2
Measured at fair value on a recurring basis: | Average life - delinquent loans (in years) | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input | year	10.6
Measured at fair value on a recurring basis: | Average life - delinquent loans (in years) | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held-for-investment, measurement input | year	5.9
Measured at fair value on a recurring basis: | Cost of servicing | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input | $ / shares	70
Measured at fair value on a recurring basis: | Cost of servicing | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input | $ / shares	200
Measured at fair value on a recurring basis: | Cost of servicing | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input	77
Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input | $ / shares	200
Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input | $ / shares	1,000
Measured at fair value on a recurring basis: | Cost of servicing - delinquent | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs, measurement input	361
Measured at fair value on a recurring basis: | Pull-through rate | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivatives, measurement input	0.04
Measured at fair value on a recurring basis: | Pull-through rate | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivatives, measurement input	1
Measured at fair value on a recurring basis: | Pull-through rate | Level 3 | Discounted cash flows | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivatives, measurement input	0.8117
Measured at fair value on a non-recurring basis:
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	$ 118,286,000
Other real estate owned	19,731,000
Measured at fair value on a non-recurring basis: | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually assessed loans - foreclosure probable and collateral-dependent	118,286,000
Other real estate owned	$ 19,731,000
Measured at fair value on a non-recurring basis: | Appraisal adjustment - cost of sale | Level 3 | Appraisal value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - collateral based, measurement input	0.10
Other real estate owned, measurement input	0.10
Measured at fair value on a non-recurring basis: | Appraisal adjustment - cost of sale | Level 3 | Appraisal value | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - collateral based, measurement input	0.1000
Other real estate owned, measurement input	0.1000

XML

Fair Values of Assets and Liabilities - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Financial Assets:
Interest-bearing deposits with banks	$ 2,824,314	$ 2,084,323	$ 2,163,708
Available-for-sale securities	4,329,957	3,502,915	3,492,481
Held-to-maturity securities	3,060,467	3,215,468	2,887,891
Equity securities with readily determinable fair value	112,173	139,268	116,275
FHLB and FRB stock, at cost	256,495	205,003	195,117
Brokerage customer receivables	13,682	10,592	15,722
Mortgage loans held-for-sale, at fair value	411,851	292,722	338,728
Accrued interest receivable and other	1,671,334	1,551,899	1,455,748
Financial Liabilities
FHLB advances	3,176,309	2,326,071	2,026,071
Other borrowings	606,579	645,813	665,219
Subordinated notes	298,113	437,866	437,628
Junior subordinated debentures	253,566	253,566	253,566
Carrying Value
Financial Assets:
Cash and cash equivalents	415,524	423,464	513,917
Interest-bearing deposits with banks	2,824,314	2,084,323	2,163,708
Available-for-sale securities	4,329,957	3,502,915	3,492,481
Held-to-maturity securities	3,755,924	3,856,916	3,564,473
Trading account securities	4,134	4,707	3,027
Equity securities with readily determinable fair value	112,173	139,268	116,275
FHLB and FRB stock, at cost	256,495	205,003	195,117
Brokerage customer receivables	13,682	10,592	15,722
Mortgage loans held-for-sale, at fair value	411,851	292,722	338,728
Nonqualified deferred compensation assets	16,041	15,238	14,796
Derivative assets	243,860	275,726	294,748
Accrued interest receivable and other	505,504	477,832	434,553
Total	57,564,990	53,420,537	52,170,953
Financial Liabilities
Non-maturity deposits	38,778,256	38,772,098	37,682,437
Time certificates of deposit	9,270,770	6,625,072	6,356,270
FHLB advances	3,176,309	2,326,071	2,026,071
Other borrowings	606,579	645,813	665,219
Subordinated notes	298,113	437,866	437,628
Junior subordinated debentures	253,566	253,566	253,566
Derivative liabilities	317,659	267,255	391,172
Accrued interest payable	66,373	51,116	45,359
Total financial liabilities	52,767,625	49,378,857	47,857,722
Carrying Value | Loans held-for-investment, at fair value
Financial Assets:
Loans held-for-investment	135,834	155,261	193,953
Carrying Value | Loans held-for-investment, at amortized cost
Financial Assets:
Loans held-for-investment	44,539,697	41,976,570	40,829,455
Fair Value
Financial Assets:
Cash and cash equivalents	415,524	423,464	513,917
Interest-bearing deposits with banks	2,824,314	2,084,323	2,163,708
Available-for-sale securities	4,329,957	3,502,915	3,492,481
Held-to-maturity securities	3,060,467	3,215,468	2,887,891
Trading account securities	4,134	4,707	3,027
Equity securities with readily determinable fair value	112,173	139,268	116,275
FHLB and FRB stock, at cost	256,495	205,003	195,117
Brokerage customer receivables	13,682	10,592	15,722
Mortgage loans held-for-sale, at fair value	411,851	292,722	338,728
Nonqualified deferred compensation assets	16,041	15,238	14,796
Derivative assets	243,860	275,726	294,748
Accrued interest receivable and other	505,504	477,832	434,553
Total	55,791,155	51,892,529	50,807,892
Financial Liabilities
Non-maturity deposits	38,778,256	38,772,098	37,682,437
Time certificates of deposit	9,248,374	6,603,746	6,300,161
FHLB advances	3,195,138	2,367,107	2,072,317
Other borrowings	605,305	643,755	662,156
Subordinated notes	273,666	413,501	405,762
Junior subordinated debentures	253,571	253,579	253,562
Derivative liabilities	317,659	267,255	391,172
Accrued interest payable	66,373	51,116	45,359
Total financial liabilities	52,738,342	49,372,157	47,812,926
Fair Value | Loans held-for-investment, at fair value
Financial Assets:
Loans held-for-investment	135,834	155,261	193,953
Fair Value | Loans held-for-investment, at amortized cost
Financial Assets:
Loans held-for-investment	$ 43,461,319	$ 41,090,010	$ 40,142,976

XML

Stock-Based Compensation Plans (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-Based Payment Arrangement, Noncash Expense [Abstract]
Shares available for future grants (in shares)	662		662
Stock-based compensation expense	$ 9,000	$ 8,100	$ 18,100	$ 16,400
Aggregate intrinsic value of options exercised			50	2,500
Cash received from option exercises			$ 25	$ 2,200

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Stock-Based Compensation Plans - Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Common Shares
Outstanding at beginning of the period (in shares)	13,100	68,093
Granted (in shares)	0	0
Exercised (in shares)	(775)	(54,218)
Forfeited or canceled (in shares)	0	0
Outstanding at end of the period (in shares)	12,325	13,875
Exercisable (in shares)	12,325	13,875
Weighted Average Strike Price
Outstanding at beginning of period (usd per share)	$ 42.76	$ 41.14
Granted (usd per share)	0	0
Exercised (usd per share)	32.26	40.87
Forfeited or canceled (usd per share)	0	0
Outstanding at end of period (usd per share)	43.42	42.18
Exercisable (usd per share)	$ 43.42	$ 42.18
Stock Options Additional Disclosures
Remaining contractual term, outstanding	4 years	4 years 6 months
Remaining contractual term, exercisable	4 years	4 years 6 months
Intrinsic value, outstanding	$ 680	$ 422
Intrinsic value, exercisable	$ 680	$ 422

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Stock-Based Compensation Plans - Schedule of Plans' Restricted and Performance Share Award Activity (Details) - $ / shares	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Restricted shares
Common Shares
Outstanding, beginning of the period (in shares)	746,123	610,155
Granted (in shares)	389,198	260,173
Vested and issued (in shares)	(228,719)	(103,161)
Expired, canceled or forfeited (in shares)	(7,893)	(7,638)
Outstanding, end of the period (in shares)	898,709	759,529
Vested, but deferred (in shares)	99,844	98,247
Weighted Average Grant-Date Fair Value
Outstanding, beginning of period (usd per share)	$ 79.60	$ 73.21
Granted (usd per share)	99.50	88.29
Vested and issued (usd per share)	69.54	64.08
Canceled or forfeited (usd per share)	91.47	82.82
Outstanding, end of period (usd per share)	90.68	79.52
Vested, but deferred (usd per share)	$ 53.98	$ 53.35
Performance-based stock
Common Shares
Outstanding, beginning of the period (in shares)	553,026	545,379
Granted (in shares)	96,952	186,313
Added by performance factor at vesting (in shares)	111,304	23,161
Vested and issued (in shares)	(295,644)	(178,203)
Expired, canceled or forfeited (in shares)	(3,154)	(7,909)
Outstanding, end of the period (in shares)	462,484	568,741
Vested, but deferred (in shares)	21,593	36,438
Weighted Average Grant-Date Fair Value
Outstanding, beginning of period (usd per share)	$ 79.69	$ 70.30
Granted (usd per share)	58.78	92.45
Added by performance factor at vesting (usd per share)	100.44	63.64
Vested and issued (usd per share)	58.69	63.64
Canceled or forfeited (usd per share)	95.94	82.73
Outstanding, end of period (usd per share)	93.61	79.20
Vested, but deferred (usd per share)	$ 43.95	$ 44.99

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Components of Other Comprehensive Income or Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Activity Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 5,436,400	$ 5,015,506	$ 5,399,526	$ 4,796,838
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(41,250)	(117,098)	(179,725)	(59,206)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	14,210	10,464	28,805	12,804
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(10)	(20)	(47)	(52)
Net other comprehensive income (loss) during the period, net of tax	(27,050)	(106,654)	(150,967)	(46,454)
Ending balance	5,536,628	5,041,912	5,536,628	5,041,912
Accumulated Unrealized (Losses) Gains on Securities
Activity Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(408,002)	(351,995)	(350,697)	(386,057)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(15,275)	(33,909)	(72,562)	594
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	(885)	(1)	(866)	(410)
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	(10)	(20)	(47)	(52)
Net other comprehensive income (loss) during the period, net of tax	(16,170)	(33,930)	(73,475)	132
Ending balance	(424,172)	(385,925)	(424,172)	(385,925)
Accumulated Unrealized Gains (Losses) on Derivative Instruments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(28,329)	32,809	32,049	7,381
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(23,070)	(88,533)	(98,024)	(65,854)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	15,095	10,465	29,671	13,214
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	0	0	0	0
Net other comprehensive income (loss) during the period, net of tax	(7,975)	(78,068)	(68,353)	(52,640)
Ending balance	(36,304)	(45,259)	(36,304)	(45,259)
Accumulated Foreign Currency Translation Adjustments
Activity Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(48,817)	(48,250)	(42,583)	(48,960)
Other comprehensive income (loss) during the period, net of tax, before reclassifications	(2,905)	5,344	(9,139)	6,054
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax	0	0	0	0
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax	0	0	0	0
Net other comprehensive income (loss) during the period, net of tax	(2,905)	5,344	(9,139)	6,054
Ending balance	(51,722)	(42,906)	(51,722)	(42,906)
Accumulated other comprehensive income (loss)
Activity Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(485,148)	(367,436)	(361,231)	(427,636)
Ending balance	$ (512,198)	$ (474,090)	$ (512,198)	$ (474,090)

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Other Comprehensive Income Reclassified from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
(Losses) gains on investment securities, net	$ (4,282)	$ 0	$ (2,956)	$ 1,398
Income before taxes	211,343	211,430	461,299	454,980
Income tax expense	(58,955)	(56,680)	(121,617)	(120,032)
Interest on Loans	749,812	621,057	1,460,153	1,179,749
Interest on deposits	335,703	213,495	635,235	358,297
Interest on other borrowings	8,700	8,485	17,948	16,339
Net income	152,388	154,750	339,682	334,948
Reclassification Out of Accumulated Other Comprehensive Income | Accumulated unrealized gains on securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
(Losses) gains on investment securities, net	1,204	2	1,178	562
Income before taxes	1,204	2	1,178	562
Income tax expense	(319)	(1)	(312)	(152)
Net income	885	1	866	410
Reclassification Out of Accumulated Other Comprehensive Income | Accumulated unrealized gains on derivative instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes	(20,524)	(14,267)	(40,342)	(18,014)
Income tax expense	5,429	3,802	10,671	4,800
Interest on Loans	23,849	18,661	48,324	27,733
Interest on deposits	(3,325)	(4,657)	(7,982)	(10,245)
Interest on other borrowings	0	263	0	526
Net income	$ (15,095)	$ (10,465)	$ (29,671)	$ (13,214)

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity [Abstract]
Net income	$ 152,388	$ 154,750	$ 339,682	$ 334,948
Less: Preferred stock dividends	6,991	6,991	13,982	13,982
Net income applicable to common shares	$ 145,397	$ 147,759	$ 325,700	$ 320,966
Weighted average common shares outstanding (in shares)	61,839	61,192	61,660	61,072
Effect of dilutive potential common shares
Common stock equivalents (in shares)	926	902	901	933
Average common shares and dilutive common shares (in shares)	62,765	62,094	62,561	62,005
Net income per common share:
Basic (usd per share)	$ 2.35	$ 2.41	$ 5.28	$ 5.26
Diluted (usd per share)	$ 2.32	$ 2.38	$ 5.21	$ 5.18

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Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Narrative (Details) - $ / shares	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2024	Jan. 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2024
Class of Stock [Line Items]
Cash dividends declared per common share (usd per share)	$ 0.45	$ 0.45	$ 0.45	$ 0.40	$ 0.90	$ 0.80
Forecast
Class of Stock [Line Items]
Cash dividends declared per common share (usd per share)							$ 1.80

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Subsequent Events (Details) $ in Thousands, shares in Millions	Aug. 01, 2024 branch shares	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)
Subsequent Event [Line Items]
Assets		$ 59,781,516	$ 56,259,934	$ 54,286,176
Deposits		48,049,026	$ 45,397,170	$ 44,038,707
Macatawa Bank Corporation
Subsequent Event [Line Items]
Assets		2,700,000
Deposits		2,300,000
Net loans		$ 1,300,000
Subsequent Event | Macatawa Bank Corporation
Subsequent Event [Line Items]
Business acquisition, number of shares issued (in shares) | shares	4.7
Business combination, number of acquired operating branches | branch	26