Columbia Banking System (COLB) 10-Q 7 May 24 2024 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	Apr. 30, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	000-20288
Entity Registrant Name	COLUMBIA BANKING SYSTEM, INC.
Entity Incorporation, State or Country Code	WA
Entity Tax Identification Number	91-1422237
Entity Address, Address Line One	1301 A Street
Entity Address, City or Town	Tacoma
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98402-2156
City Area Code	253
Local Phone Number	305-1900
Title of 12(b) Security	Common Stock, No Par Value
Trading Symbol	COLB
Security Exchange Name	NASDAQ
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		209,378,282
Entity Central Index Key	0000887343
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks (restricted cash of $1,447 and $4,200)	$ 440,215	$ 498,496
Interest-bearing cash and temporary investments (restricted cash of $4,050 and $900)	1,760,902	1,664,038
Total cash and cash equivalents	2,201,117	2,162,534
Investment securities
Equity and other, at fair value	77,203	76,995
Available for sale, at fair value	8,616,545	8,829,870
Held to maturity, at amortized cost	2,247	2,300
Loans held for sale	47,201	30,715
Loans and leases (at fair value: $267,806 and $275,140)	37,642,413	37,441,951
Allowance for credit losses on loans and leases	(414,344)	(440,871)
Net loans and leases	37,228,069	37,001,080
Restricted equity securities	116,274	179,274
Premises and equipment, net	336,869	338,970
Operating lease right-of-use assets	113,833	115,811
Goodwill	1,029,234	1,029,234
Other intangible assets, net	571,588	603,679
Residential mortgage servicing rights, at fair value	110,444	109,243
Bank-owned life insurance	682,293	680,948
Deferred tax asset, net	356,031	347,203
Other assets	735,058	665,740
Total assets	52,224,006	52,173,596
Deposits
Non-interest-bearing	13,808,554	14,256,452
Interest-bearing	27,897,606	27,350,568
Total deposits	41,706,160	41,607,020
Securities sold under agreements to repurchase	213,573	252,119
Borrowings	3,900,000	3,950,000
Junior subordinated debentures, at fair value	309,544	316,440
Junior and other subordinated debentures, at amortized cost	107,838	107,895
Operating lease liabilities	129,240	130,576
Other liabilities	900,406	814,512
Total liabilities	47,266,761	47,178,562
COMMITMENTS AND CONTINGENCIES (Note 9)
SHAREHOLDERS' EQUITY
Preferred Stock, no par value, shares authorized: 2,000,000, issued and outstanding: 0	0	0
Common stock, no par value, shares authorized: 520,000,000 in 2024 and 2023; issued and outstanding: 209,370,395 in 2024 and 208,584,667 in 2023	5,802,322	5,802,747
Accumulated deficit	(418,946)	(467,571)
Accumulated other comprehensive loss	(426,131)	(340,142)
Total shareholders' equity	4,957,245	4,995,034
Total liabilities and shareholders' equity	$ 52,224,006	$ 52,173,596

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Restricted cash	$ 1,447	$ 4,200
Restricted Cash and Cash Equivalents	4,050	900
Loans and leases, at fair value	$ 267,806	$ 275,140
Preferred Stock, Shares Authorized	2,000,000
Preferred Stock, Shares Issued	0
Preferred Stock, Shares Outstanding	0
Common stock, shares authorized	520,000,000	520,000,000
Common stock, shares outstanding	209,370,395	208,584,667
Common stock, shares issued	209,370,395	208,584,667

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
INTEREST INCOME
Interest and fees on loans and leases	$ 575,044	$ 413,525
Interest and dividends on investment securities:
Taxable	75,017	39,729
Exempt from federal income tax	6,904	3,397
Dividends	3,707	719
Interest on temporary investments and interest-bearing deposits	23,553	18,581
Total interest income	684,225	475,951
INTEREST EXPENSE
Interest on deposits	198,435	63,613
Interest on securities sold under agreement to repurchase and federal funds purchased	1,266	406
Interest on borrowings	51,275	28,764
Interest on junior and other subordinated debentures	9,887	8,470
Total interest expense	260,863	101,253
Net interest income	423,362	374,698
PROVISION FOR CREDIT LOSSES	17,136	105,539
Net interest income after provision for credit losses	406,226	269,159
NON-INTEREST INCOME
Residential mortgage banking revenue, net	4,634	7,816
Gain on sale of debt securities, net	12	0
(Loss) gain on equity securities, net	(1,565)	2,416
Gain on loan and lease sales, net	221	940
Bank-owned life insurance income	4,639	2,790
Noninterest Income, Other Operating Income	8,705	13,603
Total non-interest income	50,357	54,735
NON-INTEREST EXPENSE
Salaries and employee benefits	154,538	136,092
Occupancy and equipment, net	45,291	41,700
Communications	3,782	3,026
Marketing	1,936	1,059
Services	13,422	12,843
FDIC assessments	14,460	6,113
Intangible amortization	32,091	12,660
Business Combination, Acquisition Related Costs	4,478	115,898
Other expenses	17,518	13,427
Total non-interest expense	287,516	342,818
Income (loss) before provision for income taxes	169,067	(18,924)
Provision (benefit) for income taxes	44,987	(4,886)
Net income (loss)	$ 124,080	$ (14,038)
Earnings (loss) per common share:
Basic (in dollars per share)	$ 0.60	$ (0.09)
Diluted (in dollars per share)	$ 0.59	$ (0.09)
Weighted average number of common shares outstanding:
Basic (in shares)	208,260	156,383
Diluted (in shares)	208,956	156,383
Service charges on deposits
NON-INTEREST INCOME
Revenue from contract with customer	$ 16,064	$ 14,312
Card-based Fees
NON-INTEREST INCOME
Revenue from contract with customer	13,183	11,561
Financial services and trust revenue
NON-INTEREST INCOME
Revenue from contract with customer	$ 4,464	$ 1,297

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 124,080	$ (14,038)
Available for sale securities:
Unrealized (losses) gains arising during the period	(122,662)	145,438
Income tax benefit (expense) related to unrealized (losses) gains	31,893	(37,827)
Reclassification adjustment for net realized gains in earnings	(12)	0
Income tax expense related to realized gains	3	0
Net change in unrealized (losses) gains for available for sale securities	(90,778)	107,611
Junior subordinated debentures, at fair value:
Unrealized gains arising during the period	6,453	25,812
Income tax expense related to unrealized gains	(1,678)	(6,711)
Net change in unrealized gains for junior subordinated debentures, at fair value	4,775	19,101
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent [Abstract]
Amortization of unrecognized net actuarial loss included in net periodic pension cost	19	24
Income tax expense related to unrecognized actuarial loss	(5)	(6)
Net change in pension plan liability adjustment	14	18
Other comprehensive (loss) income, net of tax	(85,989)	126,730
Comprehensive income	$ 38,091	$ 112,692

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes In Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		129,320,962
Beginning balance at Dec. 31, 2022	$ 2,479,826	$ 3,450,493	$ (543,803)	$ (426,864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(14,038)		(14,038)
Other comprehensive income (loss), net of tax	126,730			126,730
Stock issued in connection with the Merger	2,337,632	2,337,632
Stock-based compensation	5,644	$ 5,644
Stock repurchased and retired (in shares)		(215,229)
Stock repurchased and retired	(5,216)	$ (5,216)
Issuances of common stock under stock plans (in shares)		460,399
Issuances of common stock under stock plans	0	$ 0
Stock related to Merger (in shares)		78,863,112
Cash dividends on common stock	(45,855)		(45,855)
Ending balance (in shares) at Mar. 31, 2023		208,429,244
Ending balance at Mar. 31, 2023	4,884,723	$ 5,788,553	(603,696)	(300,134)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	133,377		133,377
Other comprehensive income (loss), net of tax	(118,628)			(118,628)
Stock issued in connection with the Merger	1,646
Stock-based compensation	3,335	$ 3,335
Stock repurchased and retired (in shares)		(32,727)
Stock repurchased and retired	(742)	$ (742)
Issuances of common stock under stock plans (in shares)		117,122
Issuances of common stock under stock plans	0	$ 0
Cash dividends on common stock	(75,523)		(75,523)
Ending balance (in shares) at Jun. 30, 2023		208,513,639
Ending balance at Jun. 30, 2023	4,828,188	$ 5,792,792	(545,842)	(418,762)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	135,845		135,845
Other comprehensive income (loss), net of tax	(261,667)			(261,667)
Stock-based compensation	4,338	$ 4,338
Stock repurchased and retired (in shares)		(7,072)
Stock repurchased and retired	(148)	$ (148)
Issuances of common stock under stock plans (in shares)		10,472
Issuances of common stock under stock plans	0	$ 0
Issuances of common stock under the employee stock purchase plan (In Shares)		58,440
Issuances of common stock under the employee stock purchase plan	1,185	$ 1,185
Cash dividends on common stock	(75,579)		(75,579)
Ending balance (in shares) at Sep. 30, 2023		208,575,479
Ending balance at Sep. 30, 2023	4,632,162	$ 5,798,167	(485,576)	(680,429)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	93,531		93,531
Other comprehensive income (loss), net of tax	340,287			340,287
Stock-based compensation	4,756	$ 4,756
Stock repurchased and retired (in shares)		(8,807)
Stock repurchased and retired	(176)	$ (176)
Issuances of common stock under stock plans (in shares)		17,995
Issuances of common stock under stock plans	0	$ 0
Cash dividends on common stock	$ (75,526)		(75,526)
Ending balance (in shares) at Dec. 31, 2023	208,584,667	208,584,667
Ending balance at Dec. 31, 2023	$ 4,995,034	$ 5,802,747	(467,571)	(340,142)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	124,080		124,080
Other comprehensive income (loss), net of tax	(85,989)			(85,989)
Stock-based compensation	4,422	$ 4,422
Stock repurchased and retired (in shares)		(240,329)
Stock repurchased and retired	(4,847)	$ (4,847)
Issuances of common stock under stock plans (in shares)		1,026,057
Issuances of common stock under stock plans	0	$ 0
Cash dividends on common stock	$ (75,455)		(75,455)
Ending balance (in shares) at Mar. 31, 2024	209,370,395	209,370,395
Ending balance at Mar. 31, 2024	$ 4,957,245	$ 5,802,322	$ (418,946)	$ (426,131)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes In Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock (in dollars per share)	$ 0.36	$ 0.36	$ 0.36	$ 0.36	$ 0.35

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 124,080	$ 93,531	$ 133,377	$ (14,038)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Accretion of investment discounts, net	(17,693)			(7,668)
Gain on sale of investment securities, net	(12)			0
Provision for credit losses	17,136			105,539
Change in cash surrender value of bank-owned life insurance	(4,672)			(491)
Depreciation, amortization and accretion	39,962			19,043
Gain on sale of premises and equipment	(183)			(305)
Additions to residential mortgage servicing rights carried at fair value	(1,237)			(1,601)
Change in fair value of residential mortgage servicing rights carried at fair value	36			7,818
Stock-based compensation	4,422			5,644
Net (increase) decrease in equity and other investments	(1,773)			131
Loss (gain) on equity securities, net	1,565			(2,416)
Gain on sale of loans and leases, net	(1,605)			(2,996)
Change in fair value of loans held for sale	(189)			(82)
Origination of loans held for sale	(86,903)			(131,726)
Proceeds from sales of loans held for sale	71,990			155,574
Change in other assets and liabilities:
Net increase in other assets	(38,767)			(51,404)
Net increase (decrease) in other liabilities	79,351			(119,989)
Net cash provided by (used in) operating activities	185,508			(38,967)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of investment securities available for sale	(2,130)			(919,233)
Proceeds from investment securities available for sale	110,458			1,243,601
Purchases of restricted equity securities	(11,250)			(188,066)
Redemption of restricted equity securities	74,250			90,695
Net change in loans and leases	(263,625)			(59,389)
Proceeds from sales of loans and leases	18,980			20,502
Change in premises and equipment	5,899			3,486
Proceeds from bank-owned life insurance death benefits	1,160			2,028
Cash received in the Merger	0			274,587
Other	381			74
Net cash (used in) provided by investing activities	(77,675)			461,313
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in deposit liabilities	99,140			(672,737)
Net decrease in federal funds purchased	0			(14,000)
Net decrease in securities sold under agreements to repurchase	(38,546)			(107,747)
Proceeds from borrowings	3,900,000			5,945,000
Repayment of borrowings	(3,950,000)			(3,181,522)
Dividends paid on common stock	(74,997)			(45,582)
Repurchase and retirement of common stock	(4,847)			(5,216)
Net cash (used in) provided by financing activities	(69,250)			1,918,196
Net increase in cash and cash equivalents	38,583			2,340,542
Cash and cash equivalents, beginning of period	2,162,534		$ 3,635,185	1,294,643
Cash and cash equivalents, end of period	2,201,117	$ 2,162,534		3,635,185
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest	278,634			83,836
Income taxes	566			11,407
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Changes in unrealized gains and losses on investment securities available for sale, net of taxes	(90,778)			107,611
Changes in unrealized gains and losses on junior subordinated debentures carried at fair value, net of taxes	4,775			19,101
Umpqua Bank and Columbia Banking System Merger
Asset Acquisition [Line Items]
Assets acquired	0			19,226,816
Liabilities assumed	0			(17,919,326)
Net assets acquired	$ 0			$ 1,307,490

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies The accounting and financial reporting policies of Columbia Banking System, Inc. conform to accounting principles generally accepted in the United States of America and with prevailing practices within the banking and securities industries. All references in this report to "Columbia," "we," "our," or "us" or similar references mean the Company and its subsidiaries, including the wholly-owned banking subsidiary Umpqua Bank (the "Bank"). FinPac is a commercial equipment leasing company and a wholly-owned subsidiary of the Bank. The accompanying interim condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and the Bank's wholly-owned subsidiaries. All inter-company balances and transactions have been eliminated. The condensed consolidated financial statements have not been audited. A more detailed description of the Company's accounting policies is included in the Company's Annual Report on Form 10-K for the year ended December 31, 2023. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2023. In preparing these condensed consolidated financial statements, the Company has evaluated events and transactions subsequent to March 31, 2024, for potential recognition or disclosure. In management's opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments include normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim period. Basis of Financial Statement Presentation - On February 28, 2023 , UHC merged with and into Columbia, with Columbia continuing as the surviving legal corporation. Promptly following the Merger, Columbia’s wholly-owned bank subsidiary, Columbia State Bank, merged with and into UHC’s wholly-owned bank subsidiary, Umpqua Bank, with Umpqua Bank as the surviving bank. Upon completion of the Merger, the combined company became Columbia Banking System, Inc., a financial holding company that wholly owns the Bank. The Merger was accounted for as a reverse merger using the acquisition method of accounting; therefore, UHC was deemed the acquirer for financial reporting purposes, even though Columbia was the legal acquirer. The Merger was effectively an all-stock transaction and has been accounted for as a business combination. Columbia's financial results for any periods ended prior to February 28, 2023, the Merger Date, reflect UHC results only on a standalone basis. Accordingly, Columbia's reported financial results for the three months ended March 31, 2023, reflect only UHC financial results through the closing of the Merger and may not be directly comparable to the prior or future reported periods. Under the reverse acquisition method of accounting, the assets and liabilities of Columbia were recorded at their respective fair values as of February 28, 2023 ("historical Columbia"). Refer to Note 2 - Business Combination for additional information on this acquisition. Application of new accounting guidance In June 2022, the FASB issued ASU No. 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions . The amendments in this ASU clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments also clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments also update the disclosures for equity securities subject to contractual restrictions. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023. The Company adopted the guidance on January 1, 2024, using a prospective methodology, and it did not have a material impact on the Company's consolidated financial statements. 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 (a consensus of the Emerging Issues Task Force). The amendments in this ASU permit companies to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the income tax credits and other income tax benefits received and recognizes the net amortization and income tax credits and other income tax benefits in the statement of operations as a component of income tax expense (benefit). The amendments also require that a reporting entity disclose certain information in annual and interim reporting periods that enable investors to understand the investments that generate income tax credits and other income tax benefits from a tax credit program. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023. The Company adopted the guidance on January 1, 2024, and it did not have a material impact on the Company’s consolidated financial statements. Refer to Note 13 - Income Taxes for additional information. Recent accounting pronouncements In October 2023, the FASB issued ASU No. 2023-06, Disclosure Improvements. The amendments in this ASU modify the disclosure or presentation requirements of a variety of topics in the codification. The amendments align the requirements in the codification with the SEC’s regulations. Each amendment is effective on the date on which the SEC removes the related disclosure requirement from Regulation S-X or Regulation S-K, as applicable. For all entities within the scope of the affected codification subtopics, if, by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the associated amendment will be removed from the codification and will not become effective for any entities. The adoption of this ASU is not expected to have a material impact on the Company’s consolidated financial statements. In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280) . The amendments improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment, and contain other disclosure requirements. The ASU requires that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this ASU and all existing segment disclosures in Topic 280. The amendments in this ASU are effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures . The amendments are intended to provide more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The ASU requires annual disclosure of the rate reconciliation of specific categories as well as additional information related to the reconciliation of certain items that meet a quantitative threshold and further disaggregation of income taxes paid. The amendments in this ASU are effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements. In March 2024, the FASB issued ASU No. 2024-01, Compensation - Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards. The amendments improve GAAP by adding an illustrative example to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether profits interest and similar awards should be accounted for in accordance with Topic 718, Compensation—Stock Compensation . The effective date is for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements.

Business Combinations and Asset

Business Combinations and Asset Acquisitions	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Business Combination Disclosure	Business Combination On February 28, 2023 , the Company completed the Merger and UHC merged with and into Columbia, with Columbia continuing as the surviving legal corporation. Promptly following the Merger, Columbia’s wholly-owned bank subsidiary, Columbia State Bank, merged with and into UHC’s wholly-owned bank subsidiary, Umpqua Bank, with Umpqua Bank surviving the merger. Refer to Note 1 - Summary of Significant Accounting Policies under the Basis of Financial Statement Presentation for more information pertaining to the completed Merger. The Merger was accounted for as a reverse merger using the acquisition method of accounting; therefore, UHC was deemed the acquirer for financial reporting purposes, even though Columbia was the legal acquirer. The Merger was effectively an all-stock transaction and has been accounted for as a business combination. As of December 31, 2023, the Company finalized its valuation of all assets acquired and liabilities assumed in connection with the Merger. The Company recorded approximately $1.0 billion of goodwill and $710.2 million of other intangible assets. Goodwill represents the excess of the purchase price over the fair value of the assets acquired, net of fair value of liabilities assumed. Goodwill is not deductible for tax purposes. During the three months ended March 31, 2024 there were $4.5 million in merger-related expenses, compared to $115.9 million during the three months ended March 31, 2023. Additional merger-related expenses will be expensed in future periods as incurred. The following table presents unaudited pro forma information as if the Merger had occurred on January 1, 2022, which was the beginning of the last full fiscal year completed prior to the date of the Merger. The pro forma adjustments give effect to any change in interest income due to the accretion of the discount (premium) associated with the fair value adjustments to acquired loans and leases, any change in interest expense due to estimated premium amortization/discount accretion associated with the fair value adjustment to acquired interest-bearing deposits and long-term debt and the amortization of the core deposit intangible that would have resulted had the deposits been acquired as of January 1, 2022. The pro forma information is not indicative of what would have occurred had the Merger occurred as of the beginning of the year prior to the Merger Date. The pro forma amounts below do not reflect the Company's expectations as of the date of the pro forma information of further operating cost savings and other business synergies expected to be achieved, including revenue growth as a result of the Merger. As a result, actual amounts differed from the unaudited pro forma information presented. Unaudited Pro Forma for the Three Months Ended (in thousands) March 31, 2023 Net interest income $ 526,260 Non-interest income $ 88,572 Net income (1) $ 217,135 (1) The 2023 pro forma net income was adjusted to exclude $143.9 million of merger-related costs, inclusive of historical Columbia merger-related costs, incurred in 2023, as these costs were included in the 2022 pro forma net income .

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following tables present the amortized cost, unrealized gains, unrealized losses, and approximate fair values of debt securities as of the dates presented: March 31, 2024 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Available for sale: U.S. Treasury and agencies $ 1,552,240 $ 1,132 $ (85,979) $ 1,467,393 Obligations of states and political subdivisions 1,068,290 8,788 (25,149) 1,051,929 Mortgage-backed securities and collateralized mortgage obligations 6,551,596 2,386 (456,759) 6,097,223 Total available for sale securities $ 9,172,126 $ 12,306 $ (567,887) $ 8,616,545 Held to maturity: Mortgage-backed securities and collateralized mortgage obligations $ 2,247 $ 692 $ — $ 2,939 Total held to maturity securities $ 2,247 $ 692 $ — $ 2,939 December 31, 2023 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Available for sale: U.S. Treasury and agencies $ 1,551,074 $ 6,192 $ (78,874) $ 1,478,392 Obligations of states and political subdivisions 1,073,264 20,451 (21,610) 1,072,105 Mortgage-backed securities and collateralized mortgage obligations 6,638,439 28,558 (387,624) 6,279,373 Total available for sale securities $ 9,262,777 $ 55,201 $ (488,108) $ 8,829,870 Held to maturity: Mortgage-backed securities and collateralized mortgage obligations $ 2,300 $ 725 $ — $ 3,025 Total held to maturity securities $ 2,300 $ 725 $ — $ 3,025 The Company elected to exclude accrued interest receivable from the amortized cost basis of debt securities disclosed throughout this note. Interest accrued on investment securities totaled $33.1 million and $34.1 million as of March 31, 2024 and December 31, 2023, respectively, and is included in other assets on the Condensed Consolidated Balance Sheets. The following tables present debt securities that were in an unrealized loss position as of the dates presented, based on the length of time individual securities have been in an unrealized loss position. March 31, 2024 Less than 12 Months 12 Months or Longer Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. Treasury and agencies $ 338,230 $ (3,305) $ 816,265 $ (82,674) $ 1,154,495 $ (85,979) Obligations of states and political subdivisions 297,204 (2,464) 182,355 (22,685) 479,559 (25,149) Mortgage-backed securities and collateralized mortgage obligations 3,860,007 (51,572) 1,756,986 (405,187) 5,616,993 (456,759) Total temporarily impaired securities $ 4,495,441 $ (57,341) $ 2,755,606 $ (510,546) $ 7,251,047 $ (567,887) December 31, 2023 Less than 12 Months 12 Months or Longer Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. Treasury and agencies $ 99,898 $ (1,074) $ 822,245 $ (77,800) $ 922,143 $ (78,874) Obligations of states and political subdivisions 103,256 (580) 169,231 (21,030) 272,487 (21,610) Mortgage-backed securities and collateralized mortgage obligations 1,089,640 (10,355) 1,817,768 (377,269) 2,907,408 (387,624) Total temporarily impaired securities $ 1,292,794 $ (12,009) $ 2,809,244 $ (476,099) $ 4,102,038 $ (488,108) The number of individual debt securities in an unrealized loss position in the tables above increased to 1,085 as of March 31, 2024, as compared to 600 at December 31, 2023. These unrealized losses on the debt securities held by the Company were caused by changes in market interest rates or the widening of market spreads subsequent to the initial purchase of these securities and are not due to the underlying credit of the issuers. Management monitors the published credit ratings of the issuers of the debt securities for material rating or outlook changes. As the decline in fair value of the debt securities is attributable to changes in interest rates or widening market spreads and not credit quality, these investments do not have an ACL as of March 31, 2024. The following table presents the contractual maturities of debt securities as of March 31, 2024: Available For Sale Held To Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 141,688 $ 139,856 $ — $ — Due after one year through five years 2,259,829 2,213,929 2 2 Due after five years through ten years 2,187,571 2,103,386 3 64 Due after ten years 4,583,038 4,159,374 2,242 2,873 Total debt securities $ 9,172,126 $ 8,616,545 $ 2,247 $ 2,939 The following table presents, as of March 31, 2024, investment securities which were pledged to secure borrowings, public deposits, and repurchase agreements as permitted or required by law: (in thousands) Amortized Cost Fair Value To state and local governments to secure public deposits $ 1,800,912 $ 1,638,230 To secure repurchase agreements 326,111 297,673 Other securities pledged 3,407,623 3,139,037 Total pledged securities $ 5,534,646 $ 5,074,940

Loans and Leases

Loans and Leases	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Loans and Leases	Loans and Leases The following table presents the major types of loans and leases, net of deferred fees and costs, as of the dates presented: (in thousands) March 31, 2024 December 31, 2023 Commercial real estate Non-owner occupied term, net $ 6,557,768 $ 6,482,940 Owner occupied term, net 5,231,676 5,195,605 Multifamily, net 5,828,960 5,704,734 Construction & development, net 1,728,652 1,747,302 Residential development, net 284,117 323,899 Commercial Term, net 5,544,450 5,536,765 Lines of credit & other, net 2,491,557 2,430,127 Leases & equipment finance, net 1,706,759 1,729,512 Residential Mortgage, net 6,128,884 6,157,166 Home equity loans & lines, net 1,950,421 1,938,166 Consumer & other, net 189,169 195,735 Total loans and leases, net of deferred fees and costs $ 37,642,413 $ 37,441,951 The Company elected to exclude accrued interest receivable from the amortized cost basis of loans disclosed throughout this footnote. Interest accrued on loans totaled $157.8 million and $154.9 million as of March 31, 2024 and December 31, 2023, respectively, and is included in other assets on the Condensed Consolidated Balance Sheets. As of March 31, 2024, loans totaling $21.1 billion were pledged to secure borrowings and available lines of credit. Originated loans are reported at the principal amount outstanding, net of unearned interest and deferred fees and costs, and any partial charge-offs recorded. Purchased loans are recorded at fair value at the date of purchase. As of March 31, 2024 and December 31, 2023, the net deferred fees and costs were $69.8 million and $71.8 million, respectively. Total loans and leases also include discounts on acquired loans of $522.7 million and $552.5 million as of March 31, 2024 and December 31, 2023, respectively. The outstanding contractual unpaid principal balance of PCD loans, excluding acquisition accounting adjustments, was $316.1 million and $331.9 million as of March 31, 2024 and December 31, 2023, respectively. The carrying balance of PCD loans was $288.8 million and $300.2 million as of March 31, 2024 and December 31, 2023, respectively. The Bank, through its commercial equipment leasing subsidiary, FinPac, is a provider of commercial equipment leasing and financing. Direct finance leases are included within the leases and equipment finance segment within the loans and leases, net line item. These direct financing leases typically have terms of three

Allowance for Credit Losses

Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses Allowance for Credit Losses Methodology The ACL represents management's estimate of lifetime credit losses for assets within its scope, specifically loans and leases and unfunded commitments. To calculate the ACL, management uses models to estimate the PD and LGD for loans utilizing inputs that include forecasted future economic conditions and that are dependent upon specific macroeconomic variables relevant to each of the Bank's loan and lease portfolios. Moody's Analytics, a third party, provided the historical and forward-looking macroeconomic data utilized in the models used to calculate the ACL. In calculating ACL, the Bank considered the financial and economic environment at the time of assessment and economic scenarios that differed in the levels of severity and sensitivity to the ACL results. At each measurement date, the Bank selects the scenario that reflects its view of future economic conditions and is determined to be the most probable outcome. All forecasts are updated for each variable where applicable and incorporated as relevant into the ACL calculation. Actual credit loss results and the timing thereof will differ from the estimate of credit losses, either in a strong economy or a recession, as the portfolio will change through time due to growth, risk mitigation actions and other factors. In addition, the scenarios used will differ and change through time as economic conditions change. Economic scenarios might not capture deterioration or improvement in the economy timely enough for the Bank to be able to adequately address the impact to the ACL. Select macroeconomic variables are projected over the forecast period, and they could have a material impact in determining the ACL. As the length of the forecast period increases, information about the future becomes less readily available and projections are inherently less certain. The following is a discussion of the changes in the factors that influenced management's current estimate of expected credit losses. The changes in the ACL estimate during the three months ended March 31, 2024 reflect changes in the economic assumptions and recalibration of the non-homogeneous commercial and residential development loan model. Due to the dynamic economic environment, the Bank opted to use Moody's Analytics' February 2024 baseline economic forecast for estimating the ACL as of March 31, 2024. In the baseline scenario selected, the probability that the economy will perform better than this baseline is equal to the probability that it will perform worse and included the following factors: • U.S. real GDP average annualized growth of 2.3% in 2024, 1.6% in 2025, 2.0% in 2026, and 2.2% in 2027; • U.S. unemployment rate average of 3.9% in 2024, 4.1% in 2025, 4.0% in 2026, and 4.0% in 2027; and • The forecasted average federal funds rate is expected to be 4.9% in 2024, 4.0% in 2025, 3.2% in 2026 and 2.9% in 2027. The Bank uses an additional scenario that differs in terms of severity, both favorable and unfavorable, to assess the sensitivity in the ACL results and to inform qualitative adjustments. The economic factors are consistent between scenarios. The Bank selected the Moody's Analytics' February 2024 S2 scenario for this analysis. In the scenario selected, there is a 75% probability that the economy will perform better, broadly speaking, and a 25% probability that it will perform worse; and the scenario includes the following factors: • Despite the early January agreement on top-line spending, the risk of a federal government shutdown stays elevated, causing consumer and business confidence to decline. • The combination of the risk of a federal shutdown, rising political tensions, still-elevated inflation, still-elevated interest rates, and reduced credit availability causes the economy to fall into a mild recession starting in the second quarter of 2024. The decline lasts for three quarters and the peak-to-trough decline is 1%. The unemployment rate rises to a peak of 6.5% in the first quarter of 2025; • The stock market falls by 22% from the second quarter of 2024 through the fourth quarter of 2024; • Declines in European economies hurt U.S. exports and also corporate earnings from European subsidiaries; • U.S. real GDP average annualized growth of 1.3% in 2024, 0.8% in 2025, 2.8% in 2026, and 2.7% in 2027; • U.S. unemployment rate average of 5.7% in 2024, 5.8% in 2025, 4.1% in 2026, and 4.0% in 2027; and • The forecasted average federal funds rate is expected to be 4.6% in 2024, 2.4% in 2025, 2.1% in 2026 and 2.9% in 2027. The results using the comparison scenario as well as changes to the macroeconomic variables subsequent to selected economic forecast scenarios for sensitivity analysis were reviewed by management and were considered when evaluating the qualitative factor adjustments. The ACL is measured on a collective (pool) basis when similar characteristics exist. The Company has selected models at the portfolio level using a risk-based approach, with larger, more complex portfolios having more complex models. Except as noted below, the macroeconomic variables that are inputs to the models are reasonable and supportable over the life of the loans in that they reasonably project the key economic variables in the near term and then converge to a long-run equilibrium trend. These models produce reasonable and supportable estimates of loss over the life of the loans as the projected credit losses will also converge to a steady state in line with the variables applied. During the first quarter of 2024, the Bank recalibrated and updated the CECL calculation for non-homogeneous commercial loans and leases and residential development loans. While fundamental modeling methodologies remain unchanged, the updates included the addition of historical acquired portfolio data and a change in macroeconomic variables utilized to estimate PD. The overall approximate impact of the model updates during the first quarter of 2024 was a $30.5 million decrease in modeled expected credit losses on loans and leases. The Company measures the ACL using the following methods: Commercial Real Estate: Non-owner occupied commercial real estate, multifamily, and commercial construction loans are analyzed using a model that uses four primary property variables: net operating income, property value, property type, and location. For PD estimation, the model simulates potential future paths of net operating income given commercial real estate market factors determined from macroeconomic and regional commercial real estate forecasts. Using the resulting expected debt service coverage ratios, together with predicted loan-to-values and other variables, the model estimates PD from the range of conditional possibilities. In addition, the model estimates maturity PD capturing refinance default risk to produce a total PD for the loan. The model estimates LGD, inclusive of principal loss and liquidation expenses, empirically using predicted loan-to-value as well as certain market and other factors. The LGD calculation also includes a separate maturity risk component. The primary economic drivers in the model are GDP growth, U.S. unemployment rate, and 10-Year Treasury yield. These economic drivers are translated into a forecast, provided by Moody's Analytics' REIS, of real estate metrics, such as rental rates, vacancies, and cap rates. The model produces PD and LGD on a quarter-by-quarter basis for the life of loan. The owner occupied commercial real-estate portfolio utilizes a top-down macroeconomic model using linear regression. This model produces portfolio level quarterly net charge-off rates for 10 years and carries forward the last quarter's expected loss percentage projection to remaining periods. The primary economic drivers for this model are commercial real estate price index and a five-state average unemployment rate. Commercial: Non-homogeneous commercial loans and leases and residential development loans are analyzed in a multi-step process. An initial PD is estimated using a model driven by an obligor's selected financial statement ratios, together with cycle-adjusting information based on the obligor's state and industry. An initial LGD is derived separately based on collateral type using collateral value and a haircut to reflect the loss in liquidation. Another model then applies an auto-regression technique to the initial PD and LGD metrics to estimate the PD and LGD curves according to the macroeconomic scenario over a one-year reasonable and supportable forecast. The primary economic drivers in the model are GDP growth and commercial real estate price index. This model utilizes output reversion methodology, which, after one year, reverts on a straight-line basis over two years to long-term PD estimated using financial statement ratios of each obligor. The model for the homogeneous lease and equipment finance agreement portfolio uses lease and equipment finance agreement information, such as origination and performance, as well as macroeconomic variables to calculate PD and LGD values. The PD calculation is based on survival analysis while LGD is calculated using a two-step regression. The model calculates LGD using an estimate of the probability that a defaulted lease or equipment finance agreement will have a loss, and an estimate of the loss amount. The primary economic drivers for the model are GDP, U.S. unemployment rate, and a home price growth index. The model produces PD and LGD curves at the lease or equipment finance agreement level for each month in the forecast horizon. Residential: The models for residential real estate and HELOCs utilize loan level variables, such as origination and performance, as well as macroeconomic variables to calculate PD and LGD. The U.S. unemployment rate and home price growth rate indexes are primary economic drivers in both the residential real estate and HELOC models. In addition, the prime rate is also a primary driver in the HELOC model. The models focus on establishing an empirical relationship between default probabilities and a set of loan-level, borrower, and macroeconomic credit risk drivers. The LGD calculation for residential real estate is based on an estimate of the probability that a defaulted loan will have a loss, and then an estimate of the loss amount. HELOCs utilize the same model using residential real estate LGD values to assign loans to cohorts based on FICO scores and loan age. The model produces PD and LGD curves at the loan level for each quarter in the forecast horizon. Consumer : Historical net charge-off information as well as economic assumptions are used to project loss rates for the Consumer segment. All loans and leases that have not been modeled receive a loss rate via an extrapolated rate methodology. The loans and leases receiving an extrapolated rate include certain loans acquired through the Merger, newly originated loans and leases, and loans and leases without the granularity of data necessary to be modeled. Based on the vintage year, credit classification, and reporting category of the modeled loans and leases, a loss factor is calculated and applied to the non-modeled loans and leases. The results are evaluated qualitatively to ensure reasonability and compliance with CECL. Along with the quantitative factors produced by the above models, management also considers prepayment speeds and qualitative factors when determining the ACL. The Company uses a prepayment model that forecasts the constant prepayment rates based on institution specific data for the commercial real estate, commercial and industrial, and consumer portfolios and a forward curve approach that changes with macro-economic input variables for the residential and leases portfolios. Below are the nine qualitative factors considered where applicable: • Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses. • Changes in national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments. • Changes in the nature and volume of the portfolio and in the terms of loans and leases. • Changes in the experience, ability, and depth of lending management and other relevant staff. • Changes in the volume and severity of past due loans and leases, the volume of non-accrual loans and leases, and the volume and severity of adversely classified or graded loans and leases. • Changes in the quality of the Bank's credit review system. • Changes in the value of the underlying collateral for collateral-dependent loans and leases. • The existence and effect of any concentrations of credit, and changes in the level of such concentrations. • The effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Bank's existing portfolio. The Company evaluated each qualitative factor as of March 31, 2024 and concluded that a material adjustment to the amounts indicated by the models was not necessary as the models adequately reflected the significant changes in credit conditions and overall portfolio risk. Loss factors from the models, prepayment speeds, and qualitative factors are input into the Company's CECL accounting application, which aggregates the information. The Company then uses two methods to calculate the current expected credit loss: 1) the DCF method, which is used for all loans except lines of credit and 2) the non-DCF method, which is used for lines of credit due to the difficulty of calculating an effective interest rate when lines have yet to be drawn on. The DCF method utilizes the effective interest rate of individual assets to discount the expected credit losses adjusted for prepayments. The difference in the net present value and the amortized cost of the asset will result in the required allowance. The non-DCF method uses the exposure at default, along with the expected credit losses adjusted for prepayments to calculate the required allowance. The following tables summarize activity related to the ACL by portfolio segment for the periods indicated: Three Months Ended March 31, 2024 (in thousands) Commercial Real Estate Commercial Residential Consumer & Other Total Allowance for credit losses on loans and leases Balance, beginning of period $ 125,888 $ 244,821 $ 62,004 $ 8,158 $ 440,871 Provision (recapture) for credit losses for loans and leases 20,191 436 (3,674) 523 17,476 Charge-offs (161) (47,232) (490) (1,870) (49,753) Recoveries 358 4,732 170 490 5,750 Net recoveries (charge-offs) 197 (42,500) (320) (1,380) (44,003) Balance, end of period $ 146,276 $ 202,757 $ 58,010 $ 7,301 $ 414,344 Reserve for unfunded commitments Balance, beginning of period $ 11,170 $ 7,841 $ 2,940 $ 1,257 $ 23,208 Provision (recapture) for credit losses on unfunded commitments 1,858 (1,951) (183) (64) (340) Balance, end of period 13,028 5,890 2,757 1,193 22,868 Total allowance for credit losses $ 159,304 $ 208,647 $ 60,767 $ 8,494 $ 437,212 Three Months Ended March 31, 2023 (in thousands) Commercial Real Estate Commercial Residential Consumer & Other Total Allowance for credit losses on loans and leases Balance, beginning of period $ 77,813 $ 167,135 $ 50,329 $ 5,858 $ 301,135 Initial ACL on PCD loans acquired during the period 8,736 17,204 454 98 26,492 Provision for credit losses for loans and leases (1) 24,483 70,997 9,955 1,063 106,498 Charge-offs — (19,248) (248) (773) (20,269) Recoveries 58 3,058 123 369 3,608 Net recoveries (charge-offs) 58 (16,190) (125) (404) (16,661) Balance, end of period $ 111,090 $ 239,146 $ 60,613 $ 6,615 $ 417,464 Reserve for unfunded commitments Balance, beginning of period $ 7,207 $ 3,049 $ 3,196 $ 769 $ 14,221 Initial ACL recorded for unfunded commitments acquired during the period 2,257 3,066 268 176 5,767 (Recapture) provision for credit losses on unfunded commitments (1,059) 266 (144) (22) (959) Balance, end of period 8,405 6,381 3,320 923 19,029 Total allowance for credit losses $ 119,495 $ 245,527 $ 63,933 $ 7,538 $ 436,493 (1) Includes $88.4 million initial provision related to non-PCD loans acquired during the first quarter of 2023. Asset Quality and Non-Performing Loans and Leases The Bank manages asset quality and controls credit risk through diversification of the loan and lease portfolio and the application of policies designed to promote sound underwriting and loan and lease monitoring practices. The Bank's Credit Quality Administration department is charged with monitoring asset quality, establishing credit policies and procedures, and enforcing the consistent application of these policies and procedures across the Bank. Reviews of non-performing, past due loans and leases and larger credits, designed to identify potential charges to the allowance for credit losses, and to determine the adequacy of the allowance, are conducted on an ongoing basis. These reviews consider such factors as the financial strength of borrowers, the value of the applicable collateral, loan and lease loss experience, estimated loan and lease losses, growth in the loan and lease portfolio, prevailing economic conditions, and other factors. Loans and Leases Past Due and Non-Accrual Loans and Leases Typically, loans in a non-accrual status will not have an allowance for credit loss as they will be written down to their net realizable value or charged-off. However, the net realizable value for homogeneous leases and equipment finance agreements is determined by the LGD calculated by the CECL model and therefore leases and equipment finance agreements on non-accrual will have an allowance for credit losses until they become 181 days past due, at which time they are charged-off. The Company recognized no interest income on non-accrual loans and leases during the three months ended March 31, 2024 and 2023. The following tables present the carrying value of the loans and leases past due, by loan and lease class, as of the dates presented: March 31, 2024 (in thousands) Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More and Accruing (2) Total Past Due Non-Accrual (2) Current and Other Total Loans and Leases Commercial real estate Non-owner occupied term, net $ 2,237 $ 517 $ 253 $ 3,007 $ 5,382 $ 6,549,379 $ 6,557,768 Owner occupied term, net 2,275 245 — 2,520 34,354 5,194,802 5,231,676 Multifamily, net — — — — — 5,828,960 5,828,960 Construction & development, net — — — — — 1,728,652 1,728,652 Residential development, net — — — — — 284,117 284,117 Commercial Term, net 4,946 1,493 832 7,271 26,032 5,511,147 5,544,450 Lines of credit & other, net 37,219 1,736 1,966 40,921 2,335 2,448,301 2,491,557 Leases & equipment finance, net 26,837 8,551 7,935 43,323 30,593 1,632,843 1,706,759 Residential Mortgage, net (1) 14,452 — 30,040 44,492 — 6,084,392 6,128,884 Home equity loans & lines, net 5,746 2,411 3,439 11,596 — 1,938,825 1,950,421 Consumer & other, net 788 220 437 1,445 — 187,724 189,169 Total, net of deferred fees and costs $ 94,500 $ 15,173 $ 44,902 $ 154,575 $ 98,696 $ 37,389,142 $ 37,642,413 (1) Includes government guaranteed mortgage loans that the Bank has the right but not the obligation to repurchase that are past due 90 days or more, totaling $1.6 million as of March 31, 2024. (2) Includes government guaranteed portion of $11.7 million and $31.3 million for 90 days or greater and non-accrual loans, respectively. December 31, 2023 (in thousands) Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More and Accruing (2) Total Past Due Non-Accrual (2) Current and Other Total Loans and Leases Commercial real estate Non-owner occupied term, net $ 1,270 $ 3,312 $ 437 $ 5,019 $ 4,359 $ 6,473,562 $ 6,482,940 Owner occupied term, net 3,078 2,191 433 5,702 24,330 5,165,573 5,195,605 Multifamily, net — — — — — 5,704,734 5,704,734 Construction & development, net — — — — — 1,747,302 1,747,302 Residential development, net — — — — — 323,899 323,899 Commercial Term, net 6,341 2,101 202 8,644 14,519 5,513,602 5,536,765 Lines of credit & other, net 1,647 1,137 66 2,850 2,760 2,424,517 2,430,127 Leases & equipment finance, net 22,217 24,178 7,965 54,360 28,403 1,646,749 1,729,512 Residential Mortgage, net (1) 282 9,410 26,331 36,023 — 6,121,143 6,157,166 Home equity loans & lines, net 4,401 2,373 3,782 10,556 — 1,927,610 1,938,166 Consumer & other, net 778 519 326 1,623 — 194,112 195,735 Total, net of deferred fees and costs $ 40,014 $ 45,221 $ 39,542 $ 124,777 $ 74,371 $ 37,242,803 $ 37,441,951 (1) Includes government guaranteed mortgage loans the Bank has the right but not the obligation to repurchase that are past due 90 days or more, totaling $1.0 million at December 31, 2023. (2) Includes government guaranteed portion of $12.3 million and $19.3 million for 90 days or greater and non-accrual loans, respectively. The following table summarizes the amortized cost of non-accrual loans for which there was no related ACL as of March 31, 2024 and December 31, 2023: (in thousands) March 31, 2024 December 31, 2023 Commercial real estate Non-owner occupied term, net $ 37 $ 52 Owner occupied term, net 1,492 1,352 Commercial Term, net 3,137 3,497 Total non-accrual loans with no related ACL $ 4,666 $ 4,901 Collateral-Dependent Loans and Leases Loans are classified as collateral-dependent when it is probable that the Bank will be unable to collect the scheduled payments of principal and interest when due, and repayment is expected to be provided substantially through the operation or sale of the collateral. There have been no significant changes in the level of collateralization from the prior periods. The following table summarizes the amortized cost basis of the collateral-dependent loans and leases by the type of collateral securing the assets as of March 31, 2024: (in thousands) Residential Real Estate Commercial Real Estate General Business Assets Other Total Commercial real estate Non-owner occupied term, net $ — $ 5,290 $ — $ — $ 5,290 Owner occupied term, net — 31,710 — — 31,710 Commercial Term, net — — 16,952 4,265 21,217 Line of credit & other, net — 1,453 250 — 1,703 Leases & equipment finance, net — — 30,593 — 30,593 Residential Mortgage, net 56,920 — — — 56,920 Home equity loans & lines, net 2,518 — — — 2,518 Total, net of deferred fees and costs $ 59,438 $ 38,453 $ 47,795 $ 4,265 $ 149,951 Loan and Lease Modifications Made to Borrowers Experiencing Financial Difficulty Occasionally, the Company offers modifications of loans or leases to borrowers experiencing financial difficulty by providing term extensions, interest rate reductions, principal or interest forgiveness, an other-than-insignificant payment delay, or any combination of these modifications. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, such as principal forgiveness, may be granted. For the loans included in the "combination" columns below, multiple types of modifications have been made on the same loan within the current reporting period. The combination is at least two of the following: term extension, principal forgiveness, an other-than-insignificant payment delay, or an interest rate reduction. The ACL on modified loans or leases is measured using the same credit loss estimation methods used to determine the ACL for all other loans and leases held for investment. These methods incorporate the post-modification loan or lease terms, as well as defaults and charge-offs associated with historical modified loans and leases. The following tables present the amortized cost basis of loans and leases that were both experiencing financial difficulty and modified during the three months ended March 31, 2024 and 2023, by class and type of modification. The percentage of the amortized cost basis of loans and leases that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below. Three Months Ended March 31, 2024 (in thousands) Term Extension Other -Than-Insignificant Payment Delay Total % of total class of financing receivable Commercial real estate Non-owner occupied term, net $ — $ 17,630 $ 17,630 0.27 % Owner occupied term, net — 534 534 0.01 % Commercial Term, net 478 — 478 0.01 % Lines of credit & other, net 6,695 144 6,839 0.27 % Leases & equipment finance, net 785 — 785 0.05 % Residential Mortgage, net 1,012 7,624 8,636 0.14 % Total loans and leases experiencing financial difficulty $ 8,970 $ 25,932 $ 34,902 0.09 % Three Months Ended March 31, 2023 (in thousands) Term Extension Other -Than-Insignificant Payment Delay Combination - Interest Rate Reduction and Term Extension Combination - Term Extension and Principal Forgiveness Combination - Principal forgiveness and other than insignificant payment delay Total % of total class of financing receivable Commercial Lines of credit & other, net $ 1,355 $ — $ — $ — $ — $ 1,355 0.06 % Leases & equipment finance, net — 429 — — — 429 0.02 % Residential Mortgage, net — — — 1,938 8,987 10,925 0.18 % Home equity loans & lines, net — — 207 — — 207 0.01 % Total loans and leases experiencing financial difficulty $ 1,355 $ 429 $ 207 $ 1,938 $ 8,987 $ 12,916 0.03 % Three Months Ended March 31, 2024 Loan Type Financial Effect Commercial real estate Non-owner occupied term, net Deferred $4.0 million of principal and interest payments Owner occupied term, net Deferred $51,000 of principal and interest payments Commercial Term, net Weighted average term extension of 3 months to the life of the loans Lines of credit & other, net Weighted average term extension of 6 months to the life of the loans Leases & equipment finance, net Weighted average term extension of 7 months to the life of the loans and leases Residential Mortgage, net Weighted average term extension of 13.5 years to the life of the loans and deferred $534,000 of principal and interest payments Lines of credit & other, net Deferred $63,000 of principal and interest payments Three Months Ended March 31, 2023 Loan Type Financial Effect Commercial Lines of credit & other, net Weighted average term extension of 10 months to the life of the loans Leases & equipment finance, net Delayed payment for 9 months Residential Home equity loans & lines, net Weighted average term extension of 7.1 years to the life of the loan and decreased the weighted average interest rate by 3.24%. Mortgage, net Weighted average of 13.3 years to the life of the loan and deferred $499,000 of principal payments at the maturity of the loan. The Company closely monitors the performance of loans and leases that are modified for borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts. Loans and leases are considered to be in payment default at 90 or more days past due. The following table presents the performance of such loans and leases that have been modified for the three months ended March 31, 2024: Three Months Ended March 31, 2024 Loan Type Current Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or Greater Past Due Non-accrual Total (in thousands) Commercial real estate Non-owner occupied term, net $ 17,630 $ — $ — $ — $ — $ 17,630 Owner occupied term, net — — — — 534 534 Commercial Term, net 478 — — — — 478 Lines of credit & other, net 6,695 — — — 144 6,839 Leases & equipment finance, net 687 98 — — — 785 Residential Mortgage, net 8,636 — — — — 8,636 Total loans and leases experiencing financial difficulty $ 34,126 $ 98 $ — $ — $ 678 $ 34,902 For the three months ended March 31, 2023, all modified loans and leases were current and there were no loan or lease modifications made to borrowers experiencing financial difficulty that subsequently defaulted. Credit Quality Indicators Management regularly reviews loans and leases in the portfolio to assess credit quality indicators and to determine appropriate loan classification and grading. In addition, the Company's board of directors reviews and approves the credit quality indicators each year. The Bank differentiates its lending portfolios into homogeneous and non-homogeneous loans and leases. Homogeneous loans and leases are initially risk rated on a single risk rating scale based on the past due status of the loan or lease. Homogeneous loans and leases that have risk-based modifications or forbearances enter into an alternative elevated risk rating scale that freezes the elevated risk rating and requires six consecutive months of scheduled payments without delinquency before the loan or lease can return to the delinquency-based risk rating scale. Homogeneous loans and leases with other defined risk factors such as confirmed bankruptcy, business closure, death of a guarantor or fraud will be set to a floor substandard rating. The Bank's risk rating methodology for its non-homogeneous loans and leases uses a dual risk rating approach to assess the credit risk. This approach uses two scales to provide a comprehensive assessment of credit default risk and recovery risk. The probability of default scale measures a borrower's credit default risk using risk ratings ranging from 1 to 16, where a higher rating represents higher risk. For non-homogeneous loans and leases, PD ratings of 1 through 9 are "pass" grades, while PD ratings of 10 and 11 are "watch" grades. PD ratings of 12-16 correspond to the regulatory-defined categories of special mention (12), substandard (13-14), doubtful (15), and loss (16). The loss given default scale measures the amount of loss that may not be recovered in the event of a default, using six alphabetic ratings from A-F, where a higher rating represents higher risk. The LGD scale quantifies recovery risk associated with an event of default and predicts the amount of loss that would be incurred on a loan or lease if a borrower were to experience a major default and includes variables that may be external to the borrower, such as industry, geographic location, and credit cycle stage. It could also include variables specific to the loan or lease, including collateral valuation, covenant structure and debt type. The product of the borrower's PD and a loan or lease LGD is the loan or lease expected loss, expressed as a percentage. This provides a common language of credit risk across different loans. The PD scale estimates the likelihood that a borrower will experience a major default on any of its debt obligations within a specified time period. Examples of major defaults include payments 90 days or more past due, non-accrual classification, bankruptcy filing, or a full or partial charge-off of a loan or lease. As such, the PD scale represents the credit quality indicator for non-homogeneous loans and leases. The credit quality indicator rating categories follow regulatory classification and can be generally described by the following groupings for loans and leases: Pass/Watch —A pass loan or lease is a loan or lease with a credit risk level acceptable to the Bank for extending credit and maintaining normal credit monitoring. A watch loan or lease is considered pass rated but has a heightened level of unacceptable default risk due to an emerging risk element or declining performance trend. Watch ratings are expected to be temporary, with issues resolved or manifested to the extent that a higher or lower risk rating would be appropriate within a short period of time. Special Mention— A special mention loan or lease has potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution's credit position at some future date. These borrowers have an elevated probability of default but not to the point of a substandard classification. Substandard— A substandard loan or lease is inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged, if any. Loans and leases classified as substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Doubtful —Loans or leases classified as doubtful have all the weaknesses inherent in those classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, based on currently existing facts, conditi

Intangible Assets, Goodwill and

Intangible Assets, Goodwill and Other	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	Goodwill and Other Intangible Assets Columbia had $1.0 billion in goodwill as of March 31, 2024 and December 31, 2023, which represents the excess of the total acquisition price paid over the fair value of the assets acquired, net of fair value of liabilities assumed in connection with the Merger. Goodwill is not amortized but is evaluated for potential impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. The Company performed its annual impairment assessment as of October 31, 2023. No events or circumstances since the annual impairment test were noted that would indicate it was more likely than not that a goodwill impairment exists. Core deposit intangible assets values were determined based on the present value of the expected cost savings attributable to the core deposit funding relative to an alternative source of funding. The intangible assets are being amortized on an accelerated basis over a period of 10 years. No impairment losses have been recognized in the periods presented. The following table summarizes other intangible assets as of the dates presented: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount As of March 31, 2024 $ 764,791 $ (193,203) $ 571,588 As of December 31, 2023 $ 764,791 $ (161,112) $ 603,679 Amortization expense recognized on intangible assets was $32.1 million and $12.7 million for the three months ended March 31, 2024 and 2023, respectively. The table below presents the forecasted amortization expense for intangible assets as of March 31, 2024: (in thousands) Year Expected Amortization Remainder of 2024 $ 87,340 2025 105,458 2026 92,545 2027 79,632 2028 66,719 Thereafter 139,894 Total intangible assets $ 571,588

Residential Mortgage Servicing

Residential Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2024
Transfers and Servicing [Abstract]
Residential Mortgage Servicing Rights	Residential Mortgage Servicing Rights The Company measures its MSR asset at fair value with changes in fair value reported in residential mortgage banking revenue, net. The following table presents the changes in the Company's residential MSR for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Balance, beginning of period $ 109,243 $ 185,017 Additions for new MSR capitalized 1,237 1,601 Changes in fair value: Changes due to collection/realization of expected cash flows over time (3,153) (4,881) Changes due to valuation inputs or assumptions (1) 3,117 (2,937) Balance, end of period $ 110,444 $ 178,800 (1) The change in valuation inputs and assumptions principally reflect changes in discount rates and prepayment speeds, which are primarily affected by changes in interest rates. Information related to the serviced loan portfolio as of the dates presented is as follows: (dollars in thousands) March 31, 2024 December 31, 2023 Balance of loans serviced for others $ 8,081,039 $ 8,175,664 MSR as a percentage of serviced loans 1.37 % 1.34 %

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Borrowings	Borrowings The Company had FHLB advances and FRB borrowings outstanding as of March 31, 2024 with carrying values of $3.9 billion, compared to $4.0 billion at December 31, 2023. The Bank's FHLB advances were $2.4 billion as of March 31, 2024, as compared to $3.8 billion at December 31, 2023. The FHLB advances have fixed interest rates ranging from 5.10% to 5.25% and mature in 2024 through 2025. The FHLB requires the Bank to maintain a required level of investment in FHLB and sufficient collateral to qualify for secured advances. The Bank has pledged as collateral for these secured advances all FHLB stock, all funds on deposit with the FHLB, investment and commercial real estate portfolios, accounts, general intangibles, equipment, and other property in which a security interest can be granted by the Bank to the FHLB. As of March 31, 2024, the Bank had FRB BTFP borrowings of $1.6 billion, as compared to $200.0 million at December 31, 2023. The Bank's FRB BTFP borrowings have interest rates ranging from 4.76% to 4.93% and mature within one year of March 31, 2024. The Bank has pledged investment securities as collateral for these borrowings. The ability to take new advances under this program ended in March 2024.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Financial Instruments with Off-Balance-Sheet Risk — The Company's financial statements do not reflect various commitments and contingent liabilities that arise in the normal course of the Bank's business and involve elements of credit, liquidity, and interest rate risk. The following table presents a summary of the Bank's commitments and contingent liabilities: (in thousands) March 31, 2024 Commitments to extend credit $ 11,203,778 Forward sales commitments $ 68,244 Commitments to originate residential mortgage loans held for sale $ 40,745 Standby letters of credit $ 196,748 The Bank is a party to financial instruments with off-balance sheet credit risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit and financial guarantees. These instruments involve elements of credit and interest-rate risk similar to the risk involved in on-balance sheet items. The contract or notional amounts of these instruments reflect the extent of the Bank's involvement in particular classes of financial instruments. The Bank's exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit and standby letters of credit, and financial guarantees written, is represented by the contractual notional amount of those instruments. The Bank uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. There were no financial guarantees in connection with standby letters of credit that the Bank was required to perform on during the three months ended March 31, 2024 and 2023. As of March 31, 2024, approximately $181.8 million of standby letters of credit expire within one year, and $14.9 million expire thereafter. Residential mortgage loans sold into the secondary market are sold with limited recourse against the Company, meaning that the Company may be obligated to repurchase or otherwise reimburse the investor for incurred losses on any loans that suffer an early payment default, are not underwritten in accordance with investor guidelines or are determined to have pre-closing borrower misrepresentations. Legal Proceedings and Regulatory Matters— The Company is subject to litigation in court and arbitral proceedings, as well as proceedings, investigations, examinations, and other actions brought or considered by governmental and self-regulatory agencies. The Company is party to various pending and threatened claims and legal proceedings arising in the normal course of business activities, some of which involve claims for substantial or uncertain amounts. In September 2023, 34 related entities (the “iCap Entities”) that maintained their primary deposit accounts with the Bank filed jointly-administered Chapter 11 bankruptcies in the United States Bankruptcy Court for the Eastern District of Washington. The Bank was served with a request for production of account records and produced such records through counsel. Concurrently, in pleadings filed in the Bankruptcy Court for the Eastern District of Washington on behalf of investors who claimed losses of approximately $250.0 million, the Bank was identified as a party against which claims may be brought in connection with the iCap Entities’ alleged operation of Ponzi schemes prior to the bankruptcy proceedings described above. The potential claims against the Bank and the amount of any alleged damages have not been identified. To the extent suits or actions are commenced, the Bank intends to vigorously defend any and all claims. In August 2020, a class action complaint was filed in the United States District Court (ND Cal) alleging aiding and abetting claims against the Bank associated with the failure of two commercial real estate investment companies, Professional Financial Investors, Inc. and Professional Investors Security Fund, Inc., allegedly effected through a Ponzi scheme. Both companies maintained their primary deposit account relationship with the Bank’s Novato, Marin County, California branch office, acquired by the Bank from Circle Bank. The Bank's motion to dismiss was denied in January 2021, and its motion for summary judgment was denied in December 2022, and at the same time the District Court certified the plaintiffs’ proposed class. Two other related cases were filed in 2023: one case alleges similar claims by two investors and was filed in May 2023 in Marin County Superior Court; and another case was filed in June 2023 in the United States District Court (ND Cal) alleging claims by ten investors with different investments than the class members. Plaintiffs in the two District Court cases allege damages resulting from the scheme of between $386.2 million and $429.8 million, which includes prejudgment interest and does not account for prior bankruptcy recoveries of approximately $110.0 million to date. The Superior Court case does not yet have a clear estimate of damages. Trial in the District Court cases is currently scheduled to begin September 9, 2024. Filing of these cases follows an SEC non-public investigation of Professional Financial Investors, Inc. and Professional Investors Security Fund, Inc. that commenced on May 28, 2020. The Bank intends to defend these matters vigorously and believes that it has meritorious defenses. As previously disclosed, in 2023, the Bank was informed by one of its technology service providers (the "Vendor") that a widely reported security incident involving MOVEit, a filesharing software used globally by government agencies, enterprise corporations, and financial institutions, resulted in the unauthorized acquisition by a third party of the names and social security numbers or tax identification numbers of certain of the Bank’s consumer and small business customers (the "Vendor Incident"). Other than the information described above, no account information for accounts at the Bank was compromised as a result of the Vendor Incident, and no information from the Bank’s commercial customers was involved in the Vendor Incident. On June 22, 2023, the Bank sent an email to potentially affected consumer and small business customers informing them of the Vendor Incident. Between August 11, 2023, and August 15, 2023, the Vendor, on behalf of the Bank, initiated formal notice via U.S. Mail to the 429,252 Bank customers whose information was involved in the Vendor Incident. The Bank and the Vendor also notified applicable federal and state regulators regarding the Vendor Incident. Beginning on August 18, 2023, some of the individuals who were notified of the Vendor Incident filed lawsuits against the Bank seeking monetary recovery and other relief on behalf of themselves and one or more putative classes of other individuals similarly situated. Two such cases have been filed in federal court (the United States District Court for the Western District of Washington), one of which was later voluntarily dismissed without prejudice. Five such cases have been filed in state court in Washington (the Washington Superior Court for Pierce County) and one case in state court in California (the California Superior Court for Contra Costa County). The state court cases have been removed to federal court by the Bank. On October 4, 2023, the United States Judicial Panel on Multidistrict Litigation, in view of the large number of lawsuits arising out of the MOVEit data incident in federal courts across the United States, initiated a multidistrict litigation (“MDL”) for these cases to allow such cases to be transferred to one court for pre-trial proceedings. The MDL is titled In Re: MOVEit Customer Data Security Breach Litigation , MDL No. 3083 and is pending in the United States District Court for the District of Massachusetts as MDL No. 1:23-md-03083-ADB-PGL. All seven cases against the Bank have been transferred to the MDL as of January 29, 2024. The cases collectively allege claims for negligence, negligence per se , breach of contract, breach of implied contract, breach of third-party beneficiary contract, breach of fiduciary duty, invasion of privacy, breach of the covenant of good faith and fair dealing, unjust enrichment and violation of certain statutes, namely the Washington Consumer Protection Act, the California Consumer Legal Remedies Act, the California Consumer Privacy Act, and the California Unfair Competition Law. The Bank has also received claims by or on behalf of individuals in connection with the Vendor Incident. Such claims have the potential to give rise to additional litigation. The Bank has engaged defense counsel and intends to vigorously defend against these suits and any similar or related suits or claims. The Bank has notified relevant insurance carriers and business counterparties and continues to reserve all of its relevant rights to indemnity, defense, contribution, and other relief in connection with these matters. At least quarterly, liabilities and contingencies are assessed in connection with all outstanding or new legal matters, utilizing the most recent information available. If it is determined that a loss from a matter is probable and that the amount of the loss can be reasonably estimated, an accrual for the loss is established. Once established, each accrual is adjusted as appropriate to reflect any subsequent developments in the specific legal matter. It is inherently difficult to determine whether any loss is probable or even possible. It is also inherently difficult to estimate the amount of any loss and there may be matters for which a loss is probable or reasonably possible but not currently estimable. Actual losses may be in excess of any established accrual or the range of reasonably possible loss. Management's estimate will change from time to time. For matters where a loss is not probable, or the amount of the loss cannot be estimated, no accrual is established. The Company has $6.9 million accrued related to legal matters as of March 31, 2024. The resolution and the outcome of legal claims are unpredictable, exacerbated by factors including the following: damages sought are unsubstantiated or indeterminate; it is unclear whether a case brought as a class action will be allowed to proceed on that basis; discovery or motion practice is not complete; the proceeding is not yet in its final stages; the matters present legal uncertainties; there are significant facts in dispute; there are a large number of parties, including multiple defendants; or there is a wide range of potential results. Any estimate or determination relating to the future resolution of legal and regulatory matters is uncertain and involves significant judgment. The Company is usually unable to determine whether a favorable or unfavorable outcome is remote, reasonably likely or probable, or to estimate the amount or range of a probable or reasonably likely loss until relatively late in the process. Although there can be no assurance as to the ultimate outcome of a specific legal matter, the Company believes it has meritorious defenses to the claims asserted against us in our currently outstanding legal matters, and the Company intends to continue to vigorously defend ourselves. The Company will consider settlement of legal matters when, in management's judgment, it is in the best interests of the Company and its shareholders. Based on information currently available, advice of counsel, available insurance coverage, and established reserves, the Company believes that the eventual outcome of the actions against us will not have a material adverse effect on the Company's consolidated financial statements. However, it is possible that the ultimate resolution of a matter, if unfavorable, may be material to the Company's results of operations for any particular reporting period. Concentrations of Credit Risk — The Bank grants real estate mortgage, real estate construction, commercial, agricultural and installment loans and leases to customers in Oregon, Washington, California, Idaho, Nevada, Arizona, Colorado, and Utah. In management's judgment, a concentration exists in real estate-related loans, which represented approximately 75% of the Bank's loan and lease portfolio for March 31, 2024 and December 31, 2023. Commercial real estate concentrations are managed to ensure geographic and business diversity, primarily in our footprint. As of March 31, 2024 and December 31, 2023, the multifamily portfolio, including construction, and the office portfolio represented approximately 19% and 8% of the total loan portfolio, respectively. Although management believes such concentrations have no more than the normal risk of collectability, a substantial decline in the economy in general, material increases in interest rates, changes in tax policies, tightening credit or refinancing markets, or a decline in real estate values in the Bank's primary market areas in particular, could have an adverse impact on the repayment of these loans. Personal and business incomes, proceeds from the sale of real property, or proceeds from refinancing represent the primary sources of repayment for a majority of these loans. The Bank recognizes the credit risks inherent in dealing with other depository institutions. Accordingly, to prevent excessive exposure to any single correspondent, the Bank has established general standards for selecting correspondent banks as well as internal limits for allowable exposure to any single correspondent. In addition, the Bank has an investment policy that sets forth limitations that apply to all investments with respect to credit rating and concentrations with an issuer.

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Bank may use derivatives to hedge the risk of changes in the fair values of interest rate lock commitments, residential mortgage loans held for sale, and MSRs. None of the Company's derivatives are designated as hedging instruments. Rather, they are accounted for as free-standing derivatives, or economic hedges, with changes in the fair value of the derivatives reported in income. The Company utilizes forward interest rate contracts in its derivative risk management strategy. The Bank enters into forward delivery contracts to sell residential mortgage loans or mortgage-backed securities to broker-dealers at specific prices and dates in order to hedge the interest rate risk in its portfolio of mortgage loans held for sale and its residential mortgage interest rate lock commitments. Credit risk associated with forward contracts is limited to the replacement cost of those forward contracts in a gain position. There were no counterparty default losses on forward contracts in the three months ended March 31, 2024 and 2023. Market risk with respect to forward contracts arises principally from changes in the value of contractual positions due to changes in interest rates. The Bank limits its exposure to market risk by monitoring differences between commitments to customers and forward contracts with broker-dealers. In the event the Company has forward delivery contract commitments in excess of available mortgage loans, the Company completes the transaction by either paying or receiving a fee to or from the broker-dealer equal to the increase or decrease in the market value of the forward contract. As of March 31, 2024 and December 31, 2023, the Bank had commitments to originate mortgage loans held for sale totaling $40.7 million and $20.6 million, respectively, and forward sales commitments of $68.2 million and $39.5 million, respectively, which are used to hedge both on-balance sheet and off-balance sheet exposures. The Bank purchases interest rate futures and forward settling mortgage-backed securities to hedge the interest rate risk of MSRs. As of March 31, 2024, the Bank had $156.0 million notional of interest rate futures contracts and $17.0 million of mortgage-backed securities related to this program. As of December 31, 2023, the Bank had $150.0 million notional of interest rate futures contracts and $36.0 million of mortgage-backed securities related to this program. The Bank executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting the interest rate swaps that the Bank executes with a third party, such that the Bank minimizes its net risk exposure. As of March 31, 2024, the Bank had interest rate swap assets with a $4.5 billion notional amount and interest swap rate liabilities with a $4.7 billion notional amount related to this program. As of December 31, 2023, the Bank had interest rate swap assets and interest rate swap liabilities, both with a notional amount of $4.7 billion related to this program. The Bank has collateral posting requirements for initial margins with its clearing members and clearing houses and has been required to post collateral against its obligations under these agreements of $85.6 million and $88.3 million as of March 31, 2024 and December 31, 2023, respectively. The Bank's clearable interest rate swap derivatives are cleared through the Chicago Mercantile Exchange and London Clearing House. These clearing houses characterize the variation margin payments, for certain derivative contracts that are referred to as settled-to-market, as settlements of the derivative's mark-to-market exposure and not collateral. The Company accounts for the variation margin as an adjustment to cash collateral, as well as a corresponding adjustment to the derivative asset and liability. As of March 31, 2024 and December 31, 2023, the variation margin netting adjustments for centrally cleared interest rate swaps consisted of derivative asset adjustments of $200.3 million and $166.3 million, respectively. The Bank also has solely executed swaps indexed to Term SOFR, which are not clearable. These swaps are executed on a bilateral basis with a counterparty bank. There is no initial margin posted for bilateral swaps, but cash collateral equivalent to variation margin is exchanged to cover the mark-to-market exposure on a daily basis. The Bank also executes foreign currency hedges as a service for customers. These foreign currency hedges are then offset with hedges with other third-party banks to limit the Bank's risk exposure. The Bank's derivative assets are included in other assets on the Condensed Consolidated Balance Sheets, while the derivative liabilities are included in other liabilities on the Condensed Consolidated Balance Sheets. The following table summarizes the types of derivatives, separately by assets and liabilities, and the fair values of such derivatives as of the dates presented: (in thousands) Asset Derivatives Liability Derivatives Derivatives not designated as hedging instrument March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 Interest rate lock commitments $ 16 $ — $ — $ 137 Interest rate futures — 3,745 1,134 — Interest rate forward sales commitments 74 9 188 535 Interest rate swaps 114,347 33,874 310,985 260,064 Foreign currency derivatives 326 457 182 355 Total derivative assets and liabilities $ 114,763 $ 38,085 $ 312,489 $ 261,091 The gains and losses on the Company's mortgage banking derivatives are included in mortgage banking revenue. The gains and losses on the Company's interest rate swaps and foreign currency derivatives are included in other income. The following table summarizes the types of derivatives and the gains (losses) recorded during the periods indicated: (in thousands) Three Months Ended Derivatives not designated as hedging instrument March 31, 2024 March 31, 2023 Interest rate lock commitments $ 153 $ 105 Interest rate futures (4,271) 2,650 Interest rate forward sales commitments 46 (1,003) Interest rate swaps 1,197 (3,543) Foreign currency derivatives 42 30 Total derivative losses $ (2,833) $ (1,761) The Company is party to interest rate swap contracts that are subject to enforceable master netting arrangements or similar agreements. Under these agreements, the Company may have the right to net settle multiple contracts with the same counterparty. The following table shows the gross interest rate swaps in the Condensed Consolidated Balance Sheets and the respective collateral received or pledged in the form of cash or other financial instruments. The collateral amounts are limited to the outstanding balances of the related asset or liability. Therefore, instances of over collateralization are not shown. Gross Amounts Not Offset in the Statement of Financial Position Gross Amounts of Recognized Assets/Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets/Liabilities presented in the Condensed Consolidated Balance Sheets Financial Instruments Collateral Received/Posted Net Amount March 31, 2024 Derivative Assets Interest rate swaps $ 114,347 $ — $ 114,347 $ 9,623 $ 98,026 $ 6,698 Derivative Liabilities Interest rate swaps $ 310,985 $ — $ 310,985 $ 9,623 $ — $ 301,362

Earnings Per Common Share

Earnings Per Common Share	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share The following is a computation of basic and diluted earnings (loss) per common share for the periods indicated: Three Months Ended (in thousands, except per share data) March 31, 2024 March 31, 2023 Net income (loss) $ 124,080 $ (14,038) Weighted average number of common shares outstanding - basic 208,260 156,383 Effect of potentially dilutive common shares (1) 696 — Weighted average number of common shares outstanding - diluted 208,956 156,383 Earnings (loss) per common share: Basic $ 0.60 $ (0.09) Diluted $ 0.59 $ (0.09) (1) Represents the effect of the assumed vesting of non-participating restricted shares based on the treasury stock method. The following table represents the weighted average outstanding restricted shares that were not included in the computation of diluted earnings per share because their effect would be anti-dilutive for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Restricted stock awards and units 601 783

Fair Value Measurement

Fair Value Measurement	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurement	Fair Value Measurement The following table presents estimated fair values of the Company's financial instruments as of the dates presented, whether or not recognized or recorded at fair value on a recurring basis in the Condensed Consolidated Balance Sheets: March 31, 2024 December 31, 2023 (in thousands) Level Carrying Value Fair Value Carrying Value Fair Value Financial assets: Cash and cash equivalents 1 $ 2,201,117 $ 2,201,117 $ 2,162,534 $ 2,162,534 Equity and other investment securities 1,2 77,203 77,203 76,995 76,995 Investment securities available for sale 1,2 8,616,545 8,616,545 8,829,870 8,829,870 Investment securities held to maturity 3 2,247 2,939 2,300 3,025 Loans held for sale 2 47,201 47,201 30,715 30,715 Loans and leases, net 2,3 37,228,069 35,740,658 37,001,080 35,810,989 Restricted equity securities 1 116,274 116,274 179,274 179,274 Residential mortgage servicing rights 3 110,444 110,444 109,243 109,243 Bank-owned life insurance 1 682,293 682,293 680,948 680,948 Derivatives 2,3 114,763 114,763 38,085 38,085 Financial liabilities: Demand, money market, and savings deposits 1 $ 35,366,323 $ 35,366,323 $ 35,379,451 $ 35,379,451 Time deposits 2 6,339,837 6,314,381 6,227,569 6,201,519 Securities sold under agreements to repurchase 2 213,573 213,573 252,119 252,119 Borrowings 2 3,900,000 3,893,589 3,950,000 3,950,037 Junior subordinated debentures, at fair value 3 309,544 309,544 316,440 316,440 Junior and other subordinated debentures, at amortized cost 3 107,838 98,867 107,895 97,695 Derivatives 2,3 312,489 312,489 261,091 261,091 Fair Value of Assets and Liabilities Measured on a Recurring Basis The following tables present information about the Company's assets and liabilities measured at fair value on a recurring basis as of the periods presented: (in thousands) March 31, 2024 Description Total Level 1 Level 2 Level 3 Financial assets: Equity and other investment securities Investments in mutual funds and other securities $ 62,497 $ 44,038 $ 18,459 $ — Equity securities held in rabbi trusts 14,706 14,706 — — Investment securities available for sale U.S. Treasury and agencies 1,467,393 372,865 1,094,528 — Obligations of states and political subdivisions 1,051,929 — 1,051,929 — Mortgage-backed securities and collateralized mortgage obligations 6,097,223 — 6,097,223 — Loans held for sale, at fair value 47,201 — 47,201 — Loans and leases, at fair value 267,806 — 267,806 — Residential mortgage servicing rights, at fair value 110,444 — — 110,444 Derivatives Interest rate lock commitments 16 — — 16 Interest rate forward sales commitments 74 — 74 — Interest rate swaps 114,347 — 114,347 — Foreign currency derivatives 326 — 326 — Total assets measured at fair value $ 9,233,962 $ 431,609 $ 8,691,893 $ 110,460 Financial liabilities: Junior subordinated debentures, at fair value $ 309,544 $ — $ — $ 309,544 Derivatives Interest rate futures 1,134 — 1,134 — Interest rate forward sales commitments 188 — 188 — Interest rate swaps 310,985 — 310,985 — Foreign currency derivatives 182 — 182 — Total liabilities measured at fair value $ 622,033 $ — $ 312,489 $ 309,544 (in thousands) December 31, 2023 Description Total Level 1 Level 2 Level 3 Financial assets: Equity and other investment securities Investments in mutual funds and other securities $ 63,298 $ 44,839 $ 18,459 $ — Equity securities held in rabbi trusts 13,697 13,697 — — Investment securities available for sale U.S. Treasury and agencies 1,478,392 373,664 1,104,728 — Obligations of states and political subdivisions 1,072,105 — 1,072,105 — Mortgage-backed securities and collateralized mortgage obligations 6,279,373 — 6,279,373 — Loans held for sale, at fair value 30,715 — 30,715 — Loans and leases, at fair value 275,140 — 275,140 — Residential mortgage servicing rights, at fair value 109,243 — — 109,243 Derivatives Interest rate futures 3,745 — 3,745 — Interest rate forward sales commitments 9 — 9 — Interest rate swaps 33,874 — 33,874 — Foreign currency derivatives 457 — 457 — Total assets measured at fair value $ 9,360,048 $ 432,200 $ 8,818,605 $ 109,243 Financial liabilities: Junior subordinated debentures, at fair value $ 316,440 $ — $ — $ 316,440 Derivatives Interest rate lock commitments 137 — — 137 Interest rate forward sales commitments 535 — 535 — Interest rate swaps 260,064 — 260,064 — Foreign currency derivatives 355 — 355 — Total liabilities measured at fair value $ 577,531 $ — $ 260,954 $ 316,577 The following methods were used to estimate the fair value of each class of financial instrument that is carried at fair value in the tables above: Securities — Fair values for investment securities are based on quoted market prices when available or through the use of alternative approaches, such as matrix or model pricing, or broker indicative bids, when market quotes are not readily accessible or available. Management periodically reviews the pricing information received from the third-party pricing service and compares it to a secondary pricing service, evaluating significant price variances between services to determine an appropriate estimate of fair value to report. Loans Held for Sale — Fair value for residential mortgage loans originated as held for sale is determined based on quoted secondary market prices for similar loans, including the implicit fair value of embedded servicing rights. For loans not originated as held for sale, these loans are accounted for at lower of cost or market, with the fair value estimated based on the expected sales price. Loans and leases — Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type, including commercial, real estate and consumer loans. Each loan category is further segregated by fixed and adjustable-rate loans. The fair value of loans is calculated by discounting expected cash flows at rates at which similar loans are currently being made. These amounts are discounted further by embedded probable losses expected to be realized in the portfolio. For loans originated as held for sale and transferred into loans held for investment, the fair value is determined based on quoted secondary market prices for similar loans. Residential Mortgage Servicing Rights — The fair value of MSR is estimated using a DCF model. Assumptions used include market discount rates, anticipated prepayment speeds, delinquency and foreclosure rates, and ancillary fee income net of servicing costs. This model is periodically validated by an independent model validation group. The model assumptions and the MSR fair value estimates are also compared to observable trades of similar portfolios as well as to MSR broker valuations and industry surveys, as available. Management believes the significant inputs utilized are indicative of those that would be used by market participants. Junior Subordinated Debentures — The fair value of junior subordinated debentures is estimated using an income approach valuation technique. The significant unobservable input utilized in the estimation of fair value of these instruments is the credit risk adjusted spread. The credit risk adjusted spread represents the non-performance risk of the liability, contemplating the inherent risk of the obligation. The Company periodically utilizes a valuation firm to determine or validate the reasonableness of inputs and factors that are used to determine the fair value. The ending carrying (fair) value of the junior subordinated debentures measured at fair value represents the estimated amount that would be paid to transfer these liabilities in an orderly transaction among market participants. Due to credit concerns in the capital markets and inactivity in the trust preferred markets that have limited the observability of market spreads, the Company has classified this as a Level 3 fair value measurement. Derivative Instruments — The fair value of the interest rate lock commitments, interest rate futures, and forward sales commitments are estimated using quoted or published market prices for similar instruments, adjusted for factors such as pull-through rate assumptions based on historical information, where appropriate. The pull-through rate assumptions are considered Level 3 valuation inputs and are significant to the interest rate lock commitment valuation; as such, the interest rate lock commitment derivatives are classified as Level 3. The fair value of the interest rate swaps is determined using a DCF technique incorporating credit valuation adjustments to reflect non-performance risk in the measurement of fair value. Although the Bank has determined that the majority of the inputs used to value its interest rate swap derivatives fall within Level 2 of the fair value hierarchy, the CVA associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2024, the Bank has assessed the significance of the impact of the CVA on the overall valuation of its interest rate swap positions and has determined that the CVA are not significant to the overall valuation of its interest rate swap derivatives. As a result, the Bank has classified its interest rate swap and futures derivative valuations in Level 2 of the fair value hierarchy. Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) The following table provides a description of the valuation technique, significant unobservable inputs, and qualitative information about the unobservable inputs for the Company's assets and liabilities classified as Level 3 and measured at fair value on a recurring basis as of March 31, 2024: Financial Instrument Fair Value Valuation Technique Unobservable Input Range of Inputs Weighted Average Assets: Residential mortgage servicing rights $ 110,444 Discounted cash flow Constant prepayment rate 6.07% - 27.52% 6.74% Discount rate 9.50% - 16.08% 10.24% Interest rate lock commitments, net $ 16 Internal pricing model Pull-through rate 64.27% - 100.00% 85.71% Liabilities: Junior subordinated debentures $ 309,544 Discounted cash flow Credit spread 2.11% - 6.13% 3.79% Generally, increases in the constant prepayment rate or the discount rate utilized in the fair value measurement of the residential mortgage servicing rights will result in a decrease in fair value. Conversely, decreases in the constant prepayment rate or the discount rate will result in an increase in fair value. An increase in the pull-through rate utilized in the fair value measurement of the interest rate lock commitment derivative will result in an increase in the fair value measurement. Conversely, a decrease in the pull-through rate will result in a decrease in the fair value measurement. Management believes that the credit risk adjusted spread utilized in the fair value measurement of the junior subordinated debentures carried at fair value is indicative of the non-performance risk premium a willing market participant would require under current market conditions, which is an inactive market. Generally, an increase in the credit spread will result in a decrease in the estimated fair value. Conversely, a decrease in the credit spread will result in an increase in the estimated fair value. The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the periods indicated: Three Months Ended Three Months Ended March 31, 2024 March 31, 2023 (in thousands) Residential mortgage servicing rights Interest rate lock commitments, net Junior subordinated debentures, at fair value Residential mortgage servicing rights Interest rate lock commitments, net Junior subordinated debentures, at fair value Beginning balance $ 109,243 $ (137) $ (316,440) $ 185,017 $ 32 $ (323,639) Change included in earnings (36) (16) (7,583) (7,818) (32) (6,679) Change in fair values included in comprehensive income/loss — — 6,453 — — 25,812 Purchases and issuances 1,237 47 — 1,601 338 — Sales and settlements — 122 8,026 — (201) 6,785 Ending balance $ 110,444 $ 16 $ (309,544) $ 178,800 $ 137 $ (297,721) Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period $ 3,117 $ 16 $ (7,583) $ (2,937) $ 137 $ (6,679) Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period $ — $ — $ 6,453 $ — $ — $ 25,812 Changes in residential mortgage servicing rights carried at fair value are recorded in residential mortgage banking revenue within non-interest income. Gains (losses) on interest rate lock commitments carried at fair value are recorded in residential mortgage banking revenue within non-interest income. The contractual interest expense on the junior subordinated debentures is recorded on an accrual basis as interest on junior subordinated debentures within interest expense. Settlements related to the junior subordinated debentures represent the payment of accrued interest that is embedded in the fair value of these liabilities. The change in fair value of junior subordinated debentures is attributable to the change in the instrument specific credit risk; accordingly, unrealized gains on fair value of junior subordinated debentures of $6.5 million for the three months ended March 31, 2024, were recorded net of tax as other comprehensive gains of $4.8 million. Comparatively, unrealized gains on fair value of junior subordinated debentures of $25.8 million were recorded net of tax as other comprehensive gains of $19.1 million for the three months ended March 31, 2023. The change recorded for three months ended March 31, 2024 was due to an increase in the credit spread and spot curve, partially offset by an increase in the implied forward curve. Fair Value of Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis From time to time, certain assets are measured at fair value on a nonrecurring basis. These adjustments to fair value generally result from the application of lower-of-cost-or-market accounting or write-downs of individual assets due to impairment, typically on collateral-dependent loans. The following tables present information about the Company's assets and liabilities measured at fair value on a nonrecurring basis for which a nonrecurring change in fair value has been recorded during the reporting period. The amounts disclosed below represent the fair values at the time the nonrecurring fair value measurements were made, and not necessarily the fair value as of the dates reported upon. March 31, 2024 (in thousands) Total Level 1 Level 2 Level 3 Loans and leases $ 1,059 $ — $ — $ 1,059 Total assets measured at fair value on a nonrecurring basis $ 1,059 $ — $ — $ 1,059 December 31, 2023 (in thousands) Total Level 1 Level 2 Level 3 Loans and leases $ 5,036 $ — $ — $ 5,036 Total assets measured at fair value on a nonrecurring basis $ 5,036 $ — $ — $ 5,036 The following table presents the losses resulting from nonrecurring fair value adjustments for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Loans and leases $ 28,174 $ 18,734 Total losses from nonrecurring measurements $ 28,174 $ 18,734 The following provides a description of the valuation technique and inputs for the Company's assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis. Unobservable inputs and qualitative information about the unobservable inputs are not presented as the fair value is determined by third-party information for loans and leases. The loans and leases amounts above represent collateral-dependent loans and leases that have been adjusted to fair value. When a loan or non-homogeneous lease is identified as collateral-dependent, the Bank measures the impairment using the current fair value of the collateral, less estimated selling costs. Depending on the characteristics of a loan or lease, the fair value of collateral is generally estimated by obtaining external appraisals, but in some cases the value of the collateral may be estimated as having little to no value. When a homogeneous lease or equipment finance agreement becomes 181 days past due, it is determined that the collateral has little to no value. If it is determined that the value of the collateral-dependent loan or lease is less than its recorded investment, the Bank recognizes this impairment and adjusts the carrying value of the loan or lease to fair value, less costs to sell, through the ACL. The loss represents charge-offs on collateral-dependent loans and leases for fair value adjustments based on the fair value of collateral. Fair Value Option The following table presents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans held for sale and loans held for investment accounted for under the fair value option as of the dates presented: March 31, 2024 December 31, 2023 (in thousands) Fair Value Aggregate Unpaid Principal Balance Fair Value Less Aggregate Unpaid Principal Balance Fair Value Aggregate Unpaid Principal Balance Fair Value Less Aggregate Unpaid Principal Balance Loans held for sale $ 47,201 $ 45,926 $ 1,275 $ 30,715 $ 29,629 $ 1,086 Loans $ 267,806 $ 315,435 $ (47,629) $ 275,140 $ 320,397 $ (45,257) The Bank elected to measure certain residential mortgage loans held for sale under the fair value option, with interest income on these loans held for sale reported in interest and fees on loans and leases on the Condensed Consolidated Statements of Operations. This reduces certain timing differences and better matches changes in the value of these assets with changes in the value of derivatives used as economic hedges for these assets. Residential mortgage loans held for sale accounted for under the fair value option are measured initially at fair value with subsequent changes in fair value recognized in earnings. Gains and losses from such changes in fair value are reported as a component of residential mortgage banking revenue. For the three months ended March 31, 2024, the Company recorded a net increase in fair value of $189,000. For the three months ended March 31, 2023, the Company recorded a net increase in fair value of $81,000. Management's intent to sell certain residential mortgage loans classified as held for sale may change over time due to factors including changes in overall market liquidity or changes in characteristics specific to certain loans held for sale. Consequently, these loans may be reclassified as loans held for investment and maintained in the Bank's loan portfolio. In the event that loans currently classified as held for sale are reclassified as loans held for investment, the loans will continue to be measured at fair value. Gains and losses from changes in fair value for these loans are reported in earnings as a component of other income and interest income on these loans are reported in interest and fees on loans and leases on the Condensed Consolidated Statements of Operations. For the three months ended March 31, 2024, the Company recorded a net decrease in fair value of $2.4 million, as compared to a net increase in fair value of $9.5 million for the three months ended March 31, 2023, respectively. The Company selected the fair value measurement option for certain junior subordinated debentures originally issued by UHC prior to the Merger (the Umpqua Statutory Trusts) and for junior subordinated debentures acquired by UHC from Sterling Financial Corporation prior to the Merger, with changes in fair value recognized as a component of other comprehensive income. The remaining junior subordinated debentures were acquired through business combinations and were measured at fair value at the time of acquisition and subsequently measured at amortized cost.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, as well as in the majority of states. The Company believes it is more likely than not that it will be able to fully realize the benefit of its federal and state NOL and tax carryforwards and has not provided a valuation allowance against its deferred tax assets. As of March 31, 2024, the Company had a net deferred tax asset of $356.0 million, which includes $2.0 million of federal and state NOL carry-forwards, expiring in tax years 2030-2032. The Company recorded income tax expense of $45.0 million and benefit of $4.9 million for the three months ended March 31, 2024 and 2023, respectively, representing effective tax rates of 26.6% and 25.8%, respectively. The effective tax rates differed from the statutory rate principally because of state taxes, non-deductible FDIC assessments, and income on tax-exempt investment securities. Investment Tax Credits The Company's tax credit investments promote qualified affordable housing projects, some of which also support the Company’s regulatory compliance with the Community Reinvestment Act. The Company’s investments in these entities generate a return primarily through the realization of federal income tax credits and other tax benefits, such as tax deductions from operating losses of the investments, over specified time periods. These tax credits and deductions are recognized as a reduction to income tax expense. The Company records the investments in affordable housing partnerships of $205.6 million and $210.9 million as of March 31, 2024 and December 31, 2023, respectively, as a component of other assets on the Condensed Consolidated Balance Sheets and uses the proportional amortization method to account for the investments. The Company's unfunded capital commitments to these investments were $104.9 million and $114.1 million as of March 31, 2024 and December 31, 2023, respectively, which are recorded as a component of other liabilities on the Condensed Consolidated Balance Sheets. Amortization related to these investments is recorded as a component of the provision for income taxes on the Condensed Consolidated Statements of Operations.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Pay vs Performance Disclosure
Net income (loss)	$ 124,080	$ 93,531	$ 135,845	$ 133,377	$ (14,038)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 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

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Application of new accounting guidance In June 2022, the FASB issued ASU No. 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions . The amendments in this ASU clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments also clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments also update the disclosures for equity securities subject to contractual restrictions. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023. The Company adopted the guidance on January 1, 2024, using a prospective methodology, and it did not have a material impact on the Company's consolidated financial statements. 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 (a consensus of the Emerging Issues Task Force). The amendments in this ASU permit companies to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the income tax credits and other income tax benefits received and recognizes the net amortization and income tax credits and other income tax benefits in the statement of operations as a component of income tax expense (benefit). The amendments also require that a reporting entity disclose certain information in annual and interim reporting periods that enable investors to understand the investments that generate income tax credits and other income tax benefits from a tax credit program. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023. The Company adopted the guidance on January 1, 2024, and it did not have a material impact on the Company’s consolidated financial statements. Refer to Note 13 - Income Taxes for additional information. Recent accounting pronouncements In October 2023, the FASB issued ASU No. 2023-06, Disclosure Improvements. The amendments in this ASU modify the disclosure or presentation requirements of a variety of topics in the codification. The amendments align the requirements in the codification with the SEC’s regulations. Each amendment is effective on the date on which the SEC removes the related disclosure requirement from Regulation S-X or Regulation S-K, as applicable. For all entities within the scope of the affected codification subtopics, if, by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the associated amendment will be removed from the codification and will not become effective for any entities. The adoption of this ASU is not expected to have a material impact on the Company’s consolidated financial statements. In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280) . The amendments improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment, and contain other disclosure requirements. The ASU requires that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this ASU and all existing segment disclosures in Topic 280. The amendments in this ASU are effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures . The amendments are intended to provide more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The ASU requires annual disclosure of the rate reconciliation of specific categories as well as additional information related to the reconciliation of certain items that meet a quantitative threshold and further disaggregation of income taxes paid. The amendments in this ASU are effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements. In March 2024, the FASB issued ASU No. 2024-01, Compensation - Stock Compensation (Topic 718): Scope Application of Profits Interest and Similar Awards. The amendments improve GAAP by adding an illustrative example to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether profits interest and similar awards should be accounted for in accordance with Topic 718, Compensation—Stock Compensation . The effective date is for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the Company's consolidated financial statements.

Business Combinations and Ass_2

Business Combinations and Asset Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Business Acquisition, Pro Forma Information	Unaudited Pro Forma for the Three Months Ended (in thousands) March 31, 2023 Net interest income $ 526,260 Non-interest income $ 88,572 Net income (1) $ 217,135 (1) The 2023 pro forma net income was adjusted to exclude $143.9 million of merger-related costs, inclusive of historical Columbia merger-related costs, incurred in 2023, as these costs were included in the 2022 pro forma net income .

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Unrealized Gains And Losses, And Fair Value Of Investment Securities	The following tables present the amortized cost, unrealized gains, unrealized losses, and approximate fair values of debt securities as of the dates presented: March 31, 2024 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Available for sale: U.S. Treasury and agencies $ 1,552,240 $ 1,132 $ (85,979) $ 1,467,393 Obligations of states and political subdivisions 1,068,290 8,788 (25,149) 1,051,929 Mortgage-backed securities and collateralized mortgage obligations 6,551,596 2,386 (456,759) 6,097,223 Total available for sale securities $ 9,172,126 $ 12,306 $ (567,887) $ 8,616,545 Held to maturity: Mortgage-backed securities and collateralized mortgage obligations $ 2,247 $ 692 $ — $ 2,939 Total held to maturity securities $ 2,247 $ 692 $ — $ 2,939 December 31, 2023 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Available for sale: U.S. Treasury and agencies $ 1,551,074 $ 6,192 $ (78,874) $ 1,478,392 Obligations of states and political subdivisions 1,073,264 20,451 (21,610) 1,072,105 Mortgage-backed securities and collateralized mortgage obligations 6,638,439 28,558 (387,624) 6,279,373 Total available for sale securities $ 9,262,777 $ 55,201 $ (488,108) $ 8,829,870 Held to maturity: Mortgage-backed securities and collateralized mortgage obligations $ 2,300 $ 725 $ — $ 3,025 Total held to maturity securities $ 2,300 $ 725 $ — $ 3,025
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value	The following tables present debt securities that were in an unrealized loss position as of the dates presented, based on the length of time individual securities have been in an unrealized loss position. March 31, 2024 Less than 12 Months 12 Months or Longer Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. Treasury and agencies $ 338,230 $ (3,305) $ 816,265 $ (82,674) $ 1,154,495 $ (85,979) Obligations of states and political subdivisions 297,204 (2,464) 182,355 (22,685) 479,559 (25,149) Mortgage-backed securities and collateralized mortgage obligations 3,860,007 (51,572) 1,756,986 (405,187) 5,616,993 (456,759) Total temporarily impaired securities $ 4,495,441 $ (57,341) $ 2,755,606 $ (510,546) $ 7,251,047 $ (567,887) December 31, 2023 Less than 12 Months 12 Months or Longer Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. Treasury and agencies $ 99,898 $ (1,074) $ 822,245 $ (77,800) $ 922,143 $ (78,874) Obligations of states and political subdivisions 103,256 (580) 169,231 (21,030) 272,487 (21,610) Mortgage-backed securities and collateralized mortgage obligations 1,089,640 (10,355) 1,817,768 (377,269) 2,907,408 (387,624) Total temporarily impaired securities $ 1,292,794 $ (12,009) $ 2,809,244 $ (476,099) $ 4,102,038 $ (488,108)
Schedule Of Maturities Of Investment Securities	The following table presents the contractual maturities of debt securities as of March 31, 2024: Available For Sale Held To Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 141,688 $ 139,856 $ — $ — Due after one year through five years 2,259,829 2,213,929 2 2 Due after five years through ten years 2,187,571 2,103,386 3 64 Due after ten years 4,583,038 4,159,374 2,242 2,873 Total debt securities $ 9,172,126 $ 8,616,545 $ 2,247 $ 2,939
Investment Securities Pledged To Secure Borrowings And Public Deposits	The following table presents, as of March 31, 2024, investment securities which were pledged to secure borrowings, public deposits, and repurchase agreements as permitted or required by law: (in thousands) Amortized Cost Fair Value To state and local governments to secure public deposits $ 1,800,912 $ 1,638,230 To secure repurchase agreements 326,111 297,673 Other securities pledged 3,407,623 3,139,037 Total pledged securities $ 5,534,646 $ 5,074,940

Loans and Leases (Tables)

Loans and Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Schedule Of Major Types Of Non-Covered Loans	The following table presents the major types of loans and leases, net of deferred fees and costs, as of the dates presented: (in thousands) March 31, 2024 December 31, 2023 Commercial real estate Non-owner occupied term, net $ 6,557,768 $ 6,482,940 Owner occupied term, net 5,231,676 5,195,605 Multifamily, net 5,828,960 5,704,734 Construction & development, net 1,728,652 1,747,302 Residential development, net 284,117 323,899 Commercial Term, net 5,544,450 5,536,765 Lines of credit & other, net 2,491,557 2,430,127 Leases & equipment finance, net 1,706,759 1,729,512 Residential Mortgage, net 6,128,884 6,157,166 Home equity loans & lines, net 1,950,421 1,938,166 Consumer & other, net 189,169 195,735 Total loans and leases, net of deferred fees and costs $ 37,642,413 $ 37,441,951

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Activity In The Non-Covered Allowance For Loan And Lease Losses	The following tables summarize activity related to the ACL by portfolio segment for the periods indicated: Three Months Ended March 31, 2024 (in thousands) Commercial Real Estate Commercial Residential Consumer & Other Total Allowance for credit losses on loans and leases Balance, beginning of period $ 125,888 $ 244,821 $ 62,004 $ 8,158 $ 440,871 Provision (recapture) for credit losses for loans and leases 20,191 436 (3,674) 523 17,476 Charge-offs (161) (47,232) (490) (1,870) (49,753) Recoveries 358 4,732 170 490 5,750 Net recoveries (charge-offs) 197 (42,500) (320) (1,380) (44,003) Balance, end of period $ 146,276 $ 202,757 $ 58,010 $ 7,301 $ 414,344 Reserve for unfunded commitments Balance, beginning of period $ 11,170 $ 7,841 $ 2,940 $ 1,257 $ 23,208 Provision (recapture) for credit losses on unfunded commitments 1,858 (1,951) (183) (64) (340) Balance, end of period 13,028 5,890 2,757 1,193 22,868 Total allowance for credit losses $ 159,304 $ 208,647 $ 60,767 $ 8,494 $ 437,212 Three Months Ended March 31, 2023 (in thousands) Commercial Real Estate Commercial Residential Consumer & Other Total Allowance for credit losses on loans and leases Balance, beginning of period $ 77,813 $ 167,135 $ 50,329 $ 5,858 $ 301,135 Initial ACL on PCD loans acquired during the period 8,736 17,204 454 98 26,492 Provision for credit losses for loans and leases (1) 24,483 70,997 9,955 1,063 106,498 Charge-offs — (19,248) (248) (773) (20,269) Recoveries 58 3,058 123 369 3,608 Net recoveries (charge-offs) 58 (16,190) (125) (404) (16,661) Balance, end of period $ 111,090 $ 239,146 $ 60,613 $ 6,615 $ 417,464 Reserve for unfunded commitments Balance, beginning of period $ 7,207 $ 3,049 $ 3,196 $ 769 $ 14,221 Initial ACL recorded for unfunded commitments acquired during the period 2,257 3,066 268 176 5,767 (Recapture) provision for credit losses on unfunded commitments (1,059) 266 (144) (22) (959) Balance, end of period 8,405 6,381 3,320 923 19,029 Total allowance for credit losses $ 119,495 $ 245,527 $ 63,933 $ 7,538 $ 436,493 (1) Includes $88.4 million initial provision related to non-PCD loans acquired during the first quarter of 2023.
Loans and Leases Past Due and Non-Accrual Loans and Leases	The following tables present the carrying value of the loans and leases past due, by loan and lease class, as of the dates presented: March 31, 2024 (in thousands) Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More and Accruing (2) Total Past Due Non-Accrual (2) Current and Other Total Loans and Leases Commercial real estate Non-owner occupied term, net $ 2,237 $ 517 $ 253 $ 3,007 $ 5,382 $ 6,549,379 $ 6,557,768 Owner occupied term, net 2,275 245 — 2,520 34,354 5,194,802 5,231,676 Multifamily, net — — — — — 5,828,960 5,828,960 Construction & development, net — — — — — 1,728,652 1,728,652 Residential development, net — — — — — 284,117 284,117 Commercial Term, net 4,946 1,493 832 7,271 26,032 5,511,147 5,544,450 Lines of credit & other, net 37,219 1,736 1,966 40,921 2,335 2,448,301 2,491,557 Leases & equipment finance, net 26,837 8,551 7,935 43,323 30,593 1,632,843 1,706,759 Residential Mortgage, net (1) 14,452 — 30,040 44,492 — 6,084,392 6,128,884 Home equity loans & lines, net 5,746 2,411 3,439 11,596 — 1,938,825 1,950,421 Consumer & other, net 788 220 437 1,445 — 187,724 189,169 Total, net of deferred fees and costs $ 94,500 $ 15,173 $ 44,902 $ 154,575 $ 98,696 $ 37,389,142 $ 37,642,413 (1) Includes government guaranteed mortgage loans that the Bank has the right but not the obligation to repurchase that are past due 90 days or more, totaling $1.6 million as of March 31, 2024. (2) Includes government guaranteed portion of $11.7 million and $31.3 million for 90 days or greater and non-accrual loans, respectively. December 31, 2023 (in thousands) Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More and Accruing (2) Total Past Due Non-Accrual (2) Current and Other Total Loans and Leases Commercial real estate Non-owner occupied term, net $ 1,270 $ 3,312 $ 437 $ 5,019 $ 4,359 $ 6,473,562 $ 6,482,940 Owner occupied term, net 3,078 2,191 433 5,702 24,330 5,165,573 5,195,605 Multifamily, net — — — — — 5,704,734 5,704,734 Construction & development, net — — — — — 1,747,302 1,747,302 Residential development, net — — — — — 323,899 323,899 Commercial Term, net 6,341 2,101 202 8,644 14,519 5,513,602 5,536,765 Lines of credit & other, net 1,647 1,137 66 2,850 2,760 2,424,517 2,430,127 Leases & equipment finance, net 22,217 24,178 7,965 54,360 28,403 1,646,749 1,729,512 Residential Mortgage, net (1) 282 9,410 26,331 36,023 — 6,121,143 6,157,166 Home equity loans & lines, net 4,401 2,373 3,782 10,556 — 1,927,610 1,938,166 Consumer & other, net 778 519 326 1,623 — 194,112 195,735 Total, net of deferred fees and costs $ 40,014 $ 45,221 $ 39,542 $ 124,777 $ 74,371 $ 37,242,803 $ 37,441,951 (1) Includes government guaranteed mortgage loans the Bank has the right but not the obligation to repurchase that are past due 90 days or more, totaling $1.0 million at December 31, 2023. (2) Includes government guaranteed portion of $12.3 million and $19.3 million for 90 days or greater and non-accrual loans, respectively.
Collateral Dependent Loans and Leases	The following table summarizes the amortized cost of non-accrual loans for which there was no related ACL as of March 31, 2024 and December 31, 2023: (in thousands) March 31, 2024 December 31, 2023 Commercial real estate Non-owner occupied term, net $ 37 $ 52 Owner occupied term, net 1,492 1,352 Commercial Term, net 3,137 3,497 Total non-accrual loans with no related ACL $ 4,666 $ 4,901
Collateral Dependent Loans and Leases	The following table summarizes the amortized cost basis of the collateral-dependent loans and leases by the type of collateral securing the assets as of March 31, 2024: (in thousands) Residential Real Estate Commercial Real Estate General Business Assets Other Total Commercial real estate Non-owner occupied term, net $ — $ 5,290 $ — $ — $ 5,290 Owner occupied term, net — 31,710 — — 31,710 Commercial Term, net — — 16,952 4,265 21,217 Line of credit & other, net — 1,453 250 — 1,703 Leases & equipment finance, net — — 30,593 — 30,593 Residential Mortgage, net 56,920 — — — 56,920 Home equity loans & lines, net 2,518 — — — 2,518 Total, net of deferred fees and costs $ 59,438 $ 38,453 $ 47,795 $ 4,265 $ 149,951
Loan and Lease Modifications Made to Borrowers Experiencing Financial Difficulty	The following tables present the amortized cost basis of loans and leases that were both experiencing financial difficulty and modified during the three months ended March 31, 2024 and 2023, by class and type of modification. The percentage of the amortized cost basis of loans and leases that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below. Three Months Ended March 31, 2024 (in thousands) Term Extension Other -Than-Insignificant Payment Delay Total % of total class of financing receivable Commercial real estate Non-owner occupied term, net $ — $ 17,630 $ 17,630 0.27 % Owner occupied term, net — 534 534 0.01 % Commercial Term, net 478 — 478 0.01 % Lines of credit & other, net 6,695 144 6,839 0.27 % Leases & equipment finance, net 785 — 785 0.05 % Residential Mortgage, net 1,012 7,624 8,636 0.14 % Total loans and leases experiencing financial difficulty $ 8,970 $ 25,932 $ 34,902 0.09 % Three Months Ended March 31, 2023 (in thousands) Term Extension Other -Than-Insignificant Payment Delay Combination - Interest Rate Reduction and Term Extension Combination - Term Extension and Principal Forgiveness Combination - Principal forgiveness and other than insignificant payment delay Total % of total class of financing receivable Commercial Lines of credit & other, net $ 1,355 $ — $ — $ — $ — $ 1,355 0.06 % Leases & equipment finance, net — 429 — — — 429 0.02 % Residential Mortgage, net — — — 1,938 8,987 10,925 0.18 % Home equity loans & lines, net — — 207 — — 207 0.01 % Total loans and leases experiencing financial difficulty $ 1,355 $ 429 $ 207 $ 1,938 $ 8,987 $ 12,916 0.03 % Three Months Ended March 31, 2024 Loan Type Financial Effect Commercial real estate Non-owner occupied term, net Deferred $4.0 million of principal and interest payments Owner occupied term, net Deferred $51,000 of principal and interest payments Commercial Term, net Weighted average term extension of 3 months to the life of the loans Lines of credit & other, net Weighted average term extension of 6 months to the life of the loans Leases & equipment finance, net Weighted average term extension of 7 months to the life of the loans and leases Residential Mortgage, net Weighted average term extension of 13.5 years to the life of the loans and deferred $534,000 of principal and interest payments Lines of credit & other, net Deferred $63,000 of principal and interest payments Three Months Ended March 31, 2023 Loan Type Financial Effect Commercial Lines of credit & other, net Weighted average term extension of 10 months to the life of the loans Leases & equipment finance, net Delayed payment for 9 months Residential Home equity loans & lines, net Weighted average term extension of 7.1 years to the life of the loan and decreased the weighted average interest rate by 3.24%. Mortgage, net Weighted average of 13.3 years to the life of the loan and deferred $499,000 of principal payments at the maturity of the loan. The Company closely monitors the performance of loans and leases that are modified for borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts. Loans and leases are considered to be in payment default at 90 or more days past due. The following table presents the performance of such loans and leases that have been modified for the three months ended March 31, 2024: Three Months Ended March 31, 2024 Loan Type Current Greater than 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or Greater Past Due Non-accrual Total (in thousands) Commercial real estate Non-owner occupied term, net $ 17,630 $ — $ — $ — $ — $ 17,630 Owner occupied term, net — — — — 534 534 Commercial Term, net 478 — — — — 478 Lines of credit & other, net 6,695 — — — 144 6,839 Leases & equipment finance, net 687 98 — — — 785 Residential Mortgage, net 8,636 — — — — 8,636 Total loans and leases experiencing financial difficulty $ 34,126 $ 98 $ — $ — $ 678 $ 34,902 For the three months ended March 31, 2023, all modified loans and leases were current and there were no loan or lease modifications made to borrowers experiencing financial difficulty that subsequently defaulted.
Internal Risk Rating By Loan Class	The following tables represent the amortized costs basis of the loans and leases by credit classification and vintage year by loan and lease class of financing receivable as of the dates presented: (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost March 31, 2024 2024 2023 2022 2021 2020 Prior Total Commercial real estate: Non-owner occupied term, net Credit quality indicator: Pass/Watch $ 46,778 $ 593,569 $ 1,319,246 $ 1,181,377 $ 661,282 $ 2,554,339 $ 51,836 $ — $ 6,408,427 Special mention — — 1,684 3,810 1,329 23,789 — — 30,612 Substandard 17,630 30,159 2,227 61 — 68,636 — — 118,713 Loss — — — — — 16 — — 16 Total non-owner occupied term, net $ 64,408 $ 623,728 $ 1,323,157 $ 1,185,248 $ 662,611 $ 2,646,780 $ 51,836 $ — $ 6,557,768 Current YTD period: Gross charge-offs — — — — — 70 — — 70 Owner occupied term, net Credit quality indicator: Pass/Watch $ 128,470 $ 520,659 $ 1,080,381 $ 955,675 $ 438,732 $ 1,857,268 $ 70,743 $ 56 $ 5,051,984 Special mention 264 1,308 5,834 7,600 5,776 32,124 1,929 — 54,835 Substandard 534 5,883 8,584 47,894 17,339 43,038 — — 123,272 Doubtful — — — 189 — 29 — — 218 Loss — — 963 — 404 — — — 1,367 Total owner occupied term, net $ 129,268 $ 527,850 $ 1,095,762 $ 1,011,358 $ 462,251 $ 1,932,459 $ 72,672 $ 56 $ 5,231,676 Current YTD period: Gross charge-offs — — — — — 91 — — 91 Multifamily, net Credit quality indicator: Pass/Watch $ 12,410 $ 278,014 $ 2,006,317 $ 1,739,778 $ 413,265 $ 1,311,940 $ 55,219 $ 228 $ 5,817,171 Special mention — — — 1,272 940 6,429 — — 8,641 Substandard — — — — — 3,148 — — 3,148 Total multifamily, net $ 12,410 $ 278,014 $ 2,006,317 $ 1,741,050 $ 414,205 $ 1,321,517 $ 55,219 $ 228 $ 5,828,960 Current YTD period: Gross charge-offs — — — — — — — — — Construction & development, net Credit quality indicator: Pass/Watch $ 26,736 $ 319,263 $ 756,839 $ 442,504 $ 109,752 $ 26,211 $ 37,679 $ — $ 1,718,984 Special mention — — 1,464 8,204 — — — — 9,668 Total construction & development, net $ 26,736 $ 319,263 $ 758,303 $ 450,708 $ 109,752 $ 26,211 $ 37,679 $ — $ 1,728,652 Current YTD period: Gross charge-offs — — — — — — — — — Residential development, net Credit quality indicator: Pass/Watch $ 11,183 $ 88,861 $ 43,447 $ 14,947 $ 66 $ 1,151 $ 114,943 $ 9,519 $ 284,117 Total residential development, net $ 11,183 $ 88,861 $ 43,447 $ 14,947 $ 66 $ 1,151 $ 114,943 $ 9,519 $ 284,117 Current YTD period: Gross charge-offs — — — — — — — — — Total commercial real estate $ 244,005 $ 1,837,716 $ 5,226,986 $ 4,403,311 $ 1,648,885 $ 5,928,118 $ 332,349 $ 9,803 $ 19,631,173 (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost March 31, 2024 2024 2023 2022 2021 2020 Prior Total Commercial: Term, net Credit quality indicator: Pass/Watch $ 142,479 $ 850,557 $ 1,179,718 $ 917,082 $ 406,535 $ 792,210 $ 1,121,858 $ 1,186 $ 5,411,625 Special mention 302 — 12,795 8,811 1,193 20,323 — — 43,424 Substandard — 6,119 18,959 28,547 3,505 12,979 9,053 — 79,162 Doubtful — — 54 4,836 1,625 729 — — 7,244 Loss — — — 335 648 2,012 — — 2,995 Total term, net $ 142,781 $ 856,676 $ 1,211,526 $ 959,611 $ 413,506 $ 828,253 $ 1,130,911 $ 1,186 $ 5,544,450 Current YTD period: Gross charge-offs — — 185 30 143 527 820 — 1,705 Lines of credit & other, net Credit quality indicator: Pass/Watch $ 11,658 $ 100,991 $ 80,012 $ 49,341 $ 12,614 $ 25,815 $ 2,012,335 $ 12,559 $ 2,305,325 Special mention — 712 1,489 397 — 91 33,055 732 36,476 Substandard 846 42,575 3,653 32 — 481 97,234 4,743 149,564 Loss — — 191 — — 1 — — 192 Total lines of credit & other, net $ 12,504 $ 144,278 $ 85,345 $ 49,770 $ 12,614 $ 26,388 $ 2,142,624 $ 18,034 $ 2,491,557 Current YTD period: Gross charge-offs — 85 163 — 4 140 17,399 574 18,365 Leases & equipment finance, net Credit quality indicator: Pass/Watch $ 181,850 $ 606,855 $ 446,654 $ 171,616 $ 75,045 $ 80,587 $ — $ — $ 1,562,607 Special mention 111 47,131 16,026 5,717 1,581 981 — — 71,547 Substandard 832 4,399 10,865 4,483 1,243 1,535 — — 23,357 Doubtful 20 10,174 22,743 9,057 2,490 1,372 — — 45,856 Loss — 897 1,772 497 128 98 — — 3,392 Total leases & equipment finance, net $ 182,813 $ 669,456 $ 498,060 $ 191,370 $ 80,487 $ 84,573 $ — $ — $ 1,706,759 Current YTD period: Gross charge-offs — 3,780 14,362 5,938 1,865 1,217 — — 27,162 Total commercial $ 338,098 $ 1,670,410 $ 1,794,931 $ 1,200,751 $ 506,607 $ 939,214 $ 3,273,535 $ 19,220 $ 9,742,766 Residential: Mortgage, net Credit quality indicator: Pass/Watch $ 6,689 $ 254,228 $ 1,845,613 $ 2,317,192 $ 515,012 $ 1,147,222 $ — $ — $ 6,085,956 Special mention — 1,657 1,270 5,024 1,050 5,451 — — 14,452 Substandard — 2,094 2,958 3,604 987 9,201 — — 18,844 Loss — 1,031 2,803 3,880 134 1,784 — — 9,632 Total mortgage, net $ 6,689 $ 259,010 $ 1,852,644 $ 2,329,700 $ 517,183 $ 1,163,658 $ — $ — $ 6,128,884 Current YTD period: Gross charge-offs — — — — — 368 — — 368 (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost March 31, 2024 2024 2023 2022 2021 2020 Prior Total Home equity loans & lines, net Credit quality indicator: Pass/Watch $ 14 $ 896 $ 2,647 $ 1,749 $ 645 $ 47,880 $ 1,879,151 $ 5,842 $ 1,938,824 Special mention — 28 253 28 — 964 6,845 38 8,156 Substandard — — — 175 — 376 475 71 1,097 Loss — — 200 — 101 430 1,219 394 2,344 Total home equity loans & lines, net $ 14 $ 924 $ 3,100 $ 1,952 $ 746 $ 49,650 $ 1,887,690 $ 6,345 $ 1,950,421 Current YTD period: Gross charge-offs — — — — — 49 73 — 122 Total residential $ 6,703 $ 259,934 $ 1,855,744 $ 2,331,652 $ 517,929 $ 1,213,308 $ 1,887,690 $ 6,345 $ 8,079,305 Consumer & other, net: Credit quality indicator: Pass/Watch $ 16,391 $ 24,413 $ 13,490 $ 6,444 $ 4,458 $ 7,490 $ 114,815 $ 221 $ 187,722 Special mention — 133 4 19 8 147 613 85 1,009 Substandard — 13 38 — — 107 240 30 428 Loss — — — — — 7 3 — 10 Total consumer & other, net $ 16,391 $ 24,559 $ 13,532 $ 6,463 $ 4,466 $ 7,751 $ 115,671 $ 336 $ 189,169 Current YTD period: Gross charge-offs — 922 52 5 — 76 619 196 1,870 Grand total $ 605,197 $ 3,792,619 $ 8,891,193 $ 7,942,177 $ 2,677,887 $ 8,088,391 $ 5,609,245 $ 35,704 $ 37,642,413 (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost December 31, 2023 2023 2022 2021 2020 2019 Prior Total Commercial real estate: Non-owner occupied term, net Credit quality indicator: Pass/Watch $ 582,178 $ 1,307,143 $ 1,182,485 $ 615,021 $ 764,821 $ 1,832,231 $ 41,194 $ — $ 6,325,073 Special mention — 317 3,478 1,337 2,480 16,352 — — 23,964 Substandard 32,461 749 — 1,090 35,214 64,304 — — 133,818 Loss — — — — — 85 — — 85 Total non-owner occupied term, net $ 614,639 $ 1,308,209 $ 1,185,963 $ 617,448 $ 802,515 $ 1,912,972 $ 41,194 $ — $ 6,482,940 Prior Year End period: Gross charge-offs — — — — — — — — — Owner occupied term, net Credit quality indicator: Pass/Watch $ 532,482 $ 1,067,388 $ 972,130 $ 448,569 $ 581,616 $ 1,351,172 $ 67,063 $ — $ 5,020,420 Special mention 1,575 5,950 6,175 4,945 14,610 15,513 1,932 — 50,700 Substandard 4,034 7,707 48,281 17,275 10,513 35,216 — — 123,026 Doubtful — — — — — 90 — — 90 Loss — 963 — 404 — 2 — — 1,369 Total owner occupied term, net $ 538,091 $ 1,082,008 $ 1,026,586 $ 471,193 $ 606,739 $ 1,401,993 $ 68,995 $ — $ 5,195,605 Prior Year End period: Gross charge-offs — 16 — — — 787 — — 803 Multifamily, net Credit quality indicator: Pass/Watch $ 272,084 $ 1,982,075 $ 1,660,492 $ 400,280 $ 590,379 $ 745,705 $ 51,480 $ — $ 5,702,495 Special mention — — 1,278 — 961 — — — 2,239 Total multifamily, net $ 272,084 $ 1,982,075 $ 1,661,770 $ 400,280 $ 591,340 $ 745,705 $ 51,480 $ — $ 5,704,734 Prior Year End period: Gross charge-offs — — — — — — — — — Construction & development, net Credit quality indicator: Pass/Watch $ 248,623 $ 716,207 $ 530,305 $ 186,680 $ 21,990 $ 10,738 $ 31,289 $ — $ 1,745,832 Special mention — 1,470 — — — — — — 1,470 Total construction & development, net $ 248,623 $ 717,677 $ 530,305 $ 186,680 $ 21,990 $ 10,738 $ 31,289 $ — $ 1,747,302 Prior Year End period: Gross charge-offs — — — — — — — — — Residential development, net Credit quality indicator: Pass/Watch $ 90,241 $ 86,078 $ 22,271 $ — $ — $ 1,329 $ 116,490 $ 6,149 $ 322,558 Special mention — — — — — — 1,341 — 1,341 Total residential development, net $ 90,241 $ 86,078 $ 22,271 $ — $ — $ 1,329 $ 117,831 $ 6,149 $ 323,899 Prior Year End period: Gross charge-offs — — — — — — — — — Total commercial real estate $ 1,763,678 $ 5,176,047 $ 4,426,895 $ 1,675,601 $ 2,022,584 $ 4,072,737 $ 310,789 $ 6,149 $ 19,454,480 (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost December 31, 2023 2023 2022 2021 2020 2019 Prior Total Commercial: Term, net Credit quality indicator: Pass/Watch $ 835,662 $ 1,215,539 $ 933,970 $ 391,735 $ 271,974 $ 560,595 $ 1,097,630 $ 50,874 $ 5,357,979 Special mention 23,250 14,875 29,128 109 3,340 16,476 — — 87,178 Substandard 2,911 13,862 13,981 3,068 7,385 7,859 31,399 4,139 84,604 Doubtful — 1,329 335 796 197 699 — — 3,356 Loss — 415 — 648 51 2,534 — — 3,648 Total term, net $ 861,823 $ 1,246,020 $ 977,414 $ 396,356 $ 282,947 $ 588,163 $ 1,129,029 $ 55,013 $ 5,536,765 Prior Year End period: Gross charge-offs 3,000 1,418 — 415 389 886 44 808 6,960 Lines of credit & other, net Credit quality indicator: Pass/Watch $ 105,360 $ 105,791 $ 58,441 $ 12,266 $ 10,927 $ 16,108 $ 1,922,115 $ 5,676 $ 2,236,684 Special mention 476 635 394 — — 80 61,927 403 63,915 Substandard 7,807 4,161 — — — 593 83,304 32,509 128,374 Doubtful — — — — — — 48 211 259 Loss — 693 200 — 1 1 — — 895 Total lines of credit & other, net $ 113,643 $ 111,280 $ 59,035 $ 12,266 $ 10,928 $ 16,782 $ 2,067,394 $ 38,799 $ 2,430,127 Prior Year End period: Gross charge-offs 30 168 — 47 144 45 1,058 1,809 3,301 Leases & equipment finance, net Credit quality indicator: Pass/Watch $ 682,866 $ 501,867 $ 200,499 $ 92,402 $ 61,065 $ 33,908 $ — $ — $ 1,572,607 Special mention 46,806 15,962 6,182 1,688 7,224 77 — — 77,939 Substandard 7,094 15,274 6,704 2,163 1,246 1,161 — — 33,642 Doubtful 5,833 22,566 9,036 3,161 1,700 208 — — 42,504 Loss 395 1,485 581 292 58 9 — — 2,820 Total leases & equipment finance, net $ 742,994 $ 557,154 $ 223,002 $ 99,706 $ 71,293 $ 35,363 $ — $ — $ 1,729,512 Prior Year End period: Gross charge-offs 2,324 47,116 31,569 9,111 6,394 3,087 — — 99,601 Total commercial $ 1,718,460 $ 1,914,454 $ 1,259,451 $ 508,328 $ 365,168 $ 640,308 $ 3,196,423 $ 93,812 $ 9,696,404 Residential: Mortgage, net Credit quality indicator: Pass/Watch $ 221,207 $ 1,845,395 $ 2,355,420 $ 521,177 $ 443,152 $ 735,801 $ — $ — $ 6,122,152 Special mention 1,125 916 1,737 651 1,156 4,109 — — 9,694 Substandard 1,851 2,617 2,826 787 1,759 8,746 — — 18,586 Loss 159 2,724 970 851 220 1,810 — — 6,734 Total mortgage, net $ 224,342 $ 1,851,652 $ 2,360,953 $ 523,466 $ 446,287 $ 750,466 $ — $ — $ 6,157,166 Prior Year End period: Gross charge-offs — — — — — 6 — — 6 (in thousands) Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving to Non-Revolving Loans Amortized Cost December 31, 2023 2023 2022 2021 2020 2019 Prior Total Home equity loans & lines, net Credit quality indicator: Pass/Watch $ 562 $ 1,242 $ 1,056 $ 100 $ 896 $ 35,677 $ 1,870,270 $ 17,807 $ 1,927,610 Special mention — — — — 114 378 5,052 1,230 6,774 Substandard — — — — 137 190 1,278 174 1,779 Loss 14 — — — — 85 1,286 618 2,003 Total home equity loans & lines, net $ 576 $ 1,242 $ 1,056 $ 100 $ 1,147 $ 36,330 $ 1,877,886 $ 19,829 $ 1,938,166 Prior Year End period: Gross charge-offs — — 12 29 — 52 448 — 541 Total residential $ 224,918 $ 1,852,894 $ 2,362,009 $ 523,566 $ 447,434 $ 786,796 $ 1,877,886 $ 19,829 $ 8,095,332 Consumer & other, net: Credit quality indicator: Pass/Watch $ 39,977 $ 14,919 $ 7,132 $ 4,953 $ 3,441 $ 5,022 $ 118,125 $ 543 $ 194,112 Special mention 138 52 5 13 52 122 779 135 1,296 Substandard — — — — 3 1 251 63 318 Loss — — — — — 7 2 — 9 Total consumer & other, net $ 40,115 $ 14,971 $ 7,137 $ 4,966 $ 3,496 $ 5,152 $ 119,157 $ 741 $ 195,735 Prior Year End period: Gross charge-offs 3,313 132 23 20 29 288 1,485 472 5,762 Grand total $ 3,747,171 $ 8,958,366 $ 8,055,492 $ 2,712,461 $ 2,838,682 $ 5,504,993 $ 5,504,255 $ 120,531 $ 37,441,951

Intangible Assets, Goodwill a_2

Intangible Assets, Goodwill and Other (Tables)	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets and Goodwill [Table Text Block]	The following table summarizes other intangible assets as of the dates presented: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount As of March 31, 2024 $ 764,791 $ (193,203) $ 571,588 As of December 31, 2023 $ 764,791 $ (161,112) $ 603,679
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	The table below presents the forecasted amortization expense for intangible assets as of March 31, 2024: (in thousands) Year Expected Amortization Remainder of 2024 $ 87,340 2025 105,458 2026 92,545 2027 79,632 2028 66,719 Thereafter 139,894 Total intangible assets $ 571,588

Residential Mortgage Servicin_2

Residential Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2024
Transfers and Servicing [Abstract]
Schedule Of Changes In Mortgage Servicing Rights	The following table presents the changes in the Company's residential MSR for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Balance, beginning of period $ 109,243 $ 185,017 Additions for new MSR capitalized 1,237 1,601 Changes in fair value: Changes due to collection/realization of expected cash flows over time (3,153) (4,881) Changes due to valuation inputs or assumptions (1) 3,117 (2,937) Balance, end of period $ 110,444 $ 178,800 (1) The change in valuation inputs and assumptions principally reflect changes in discount rates and prepayment speeds, which are primarily affected by changes in interest rates.
Schedule Of Other Information Servicing Loan Portfolio	Information related to the serviced loan portfolio as of the dates presented is as follows: (dollars in thousands) March 31, 2024 December 31, 2023 Balance of loans serviced for others $ 8,081,039 $ 8,175,664 MSR as a percentage of serviced loans 1.37 % 1.34 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule Of Commitments And Contingencies	The following table presents a summary of the Bank's commitments and contingent liabilities: (in thousands) March 31, 2024 Commitments to extend credit $ 11,203,778 Forward sales commitments $ 68,244 Commitments to originate residential mortgage loans held for sale $ 40,745 Standby letters of credit $ 196,748

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives	The following table summarizes the types of derivatives, separately by assets and liabilities, and the fair values of such derivatives as of the dates presented: (in thousands) Asset Derivatives Liability Derivatives Derivatives not designated as hedging instrument March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 Interest rate lock commitments $ 16 $ — $ — $ 137 Interest rate futures — 3,745 1,134 — Interest rate forward sales commitments 74 9 188 535 Interest rate swaps 114,347 33,874 310,985 260,064 Foreign currency derivatives 326 457 182 355 Total derivative assets and liabilities $ 114,763 $ 38,085 $ 312,489 $ 261,091
Summary Of Types Of Derivatives And Gains (Losses) Recorded	The following table summarizes the types of derivatives and the gains (losses) recorded during the periods indicated: (in thousands) Three Months Ended Derivatives not designated as hedging instrument March 31, 2024 March 31, 2023 Interest rate lock commitments $ 153 $ 105 Interest rate futures (4,271) 2,650 Interest rate forward sales commitments 46 (1,003) Interest rate swaps 1,197 (3,543) Foreign currency derivatives 42 30 Total derivative losses $ (2,833) $ (1,761)
Balance Sheet Offsetting	The following table shows the gross interest rate swaps in the Condensed Consolidated Balance Sheets and the respective collateral received or pledged in the form of cash or other financial instruments. The collateral amounts are limited to the outstanding balances of the related asset or liability. Therefore, instances of over collateralization are not shown. Gross Amounts Not Offset in the Statement of Financial Position Gross Amounts of Recognized Assets/Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets/Liabilities presented in the Condensed Consolidated Balance Sheets Financial Instruments Collateral Received/Posted Net Amount March 31, 2024 Derivative Assets Interest rate swaps $ 114,347 $ — $ 114,347 $ 9,623 $ 98,026 $ 6,698 Derivative Liabilities Interest rate swaps $ 310,985 $ — $ 310,985 $ 9,623 $ — $ 301,362

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Common Share	The following is a computation of basic and diluted earnings (loss) per common share for the periods indicated: Three Months Ended (in thousands, except per share data) March 31, 2024 March 31, 2023 Net income (loss) $ 124,080 $ (14,038) Weighted average number of common shares outstanding - basic 208,260 156,383 Effect of potentially dilutive common shares (1) 696 — Weighted average number of common shares outstanding - diluted 208,956 156,383 Earnings (loss) per common share: Basic $ 0.60 $ (0.09) Diluted $ 0.59 $ (0.09) (1) Represents the effect of the assumed vesting of non-participating restricted shares based on the treasury stock method.
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following table represents the weighted average outstanding restricted shares that were not included in the computation of diluted earnings per share because their effect would be anti-dilutive for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Restricted stock awards and units 601 783

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	The following table presents estimated fair values of the Company's financial instruments as of the dates presented, whether or not recognized or recorded at fair value on a recurring basis in the Condensed Consolidated Balance Sheets: March 31, 2024 December 31, 2023 (in thousands) Level Carrying Value Fair Value Carrying Value Fair Value Financial assets: Cash and cash equivalents 1 $ 2,201,117 $ 2,201,117 $ 2,162,534 $ 2,162,534 Equity and other investment securities 1,2 77,203 77,203 76,995 76,995 Investment securities available for sale 1,2 8,616,545 8,616,545 8,829,870 8,829,870 Investment securities held to maturity 3 2,247 2,939 2,300 3,025 Loans held for sale 2 47,201 47,201 30,715 30,715 Loans and leases, net 2,3 37,228,069 35,740,658 37,001,080 35,810,989 Restricted equity securities 1 116,274 116,274 179,274 179,274 Residential mortgage servicing rights 3 110,444 110,444 109,243 109,243 Bank-owned life insurance 1 682,293 682,293 680,948 680,948 Derivatives 2,3 114,763 114,763 38,085 38,085 Financial liabilities: Demand, money market, and savings deposits 1 $ 35,366,323 $ 35,366,323 $ 35,379,451 $ 35,379,451 Time deposits 2 6,339,837 6,314,381 6,227,569 6,201,519 Securities sold under agreements to repurchase 2 213,573 213,573 252,119 252,119 Borrowings 2 3,900,000 3,893,589 3,950,000 3,950,037 Junior subordinated debentures, at fair value 3 309,544 309,544 316,440 316,440 Junior and other subordinated debentures, at amortized cost 3 107,838 98,867 107,895 97,695 Derivatives 2,3 312,489 312,489 261,091 261,091
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present information about the Company's assets and liabilities measured at fair value on a recurring basis as of the periods presented: (in thousands) March 31, 2024 Description Total Level 1 Level 2 Level 3 Financial assets: Equity and other investment securities Investments in mutual funds and other securities $ 62,497 $ 44,038 $ 18,459 $ — Equity securities held in rabbi trusts 14,706 14,706 — — Investment securities available for sale U.S. Treasury and agencies 1,467,393 372,865 1,094,528 — Obligations of states and political subdivisions 1,051,929 — 1,051,929 — Mortgage-backed securities and collateralized mortgage obligations 6,097,223 — 6,097,223 — Loans held for sale, at fair value 47,201 — 47,201 — Loans and leases, at fair value 267,806 — 267,806 — Residential mortgage servicing rights, at fair value 110,444 — — 110,444 Derivatives Interest rate lock commitments 16 — — 16 Interest rate forward sales commitments 74 — 74 — Interest rate swaps 114,347 — 114,347 — Foreign currency derivatives 326 — 326 — Total assets measured at fair value $ 9,233,962 $ 431,609 $ 8,691,893 $ 110,460 Financial liabilities: Junior subordinated debentures, at fair value $ 309,544 $ — $ — $ 309,544 Derivatives Interest rate futures 1,134 — 1,134 — Interest rate forward sales commitments 188 — 188 — Interest rate swaps 310,985 — 310,985 — Foreign currency derivatives 182 — 182 — Total liabilities measured at fair value $ 622,033 $ — $ 312,489 $ 309,544 (in thousands) December 31, 2023 Description Total Level 1 Level 2 Level 3 Financial assets: Equity and other investment securities Investments in mutual funds and other securities $ 63,298 $ 44,839 $ 18,459 $ — Equity securities held in rabbi trusts 13,697 13,697 — — Investment securities available for sale U.S. Treasury and agencies 1,478,392 373,664 1,104,728 — Obligations of states and political subdivisions 1,072,105 — 1,072,105 — Mortgage-backed securities and collateralized mortgage obligations 6,279,373 — 6,279,373 — Loans held for sale, at fair value 30,715 — 30,715 — Loans and leases, at fair value 275,140 — 275,140 — Residential mortgage servicing rights, at fair value 109,243 — — 109,243 Derivatives Interest rate futures 3,745 — 3,745 — Interest rate forward sales commitments 9 — 9 — Interest rate swaps 33,874 — 33,874 — Foreign currency derivatives 457 — 457 — Total assets measured at fair value $ 9,360,048 $ 432,200 $ 8,818,605 $ 109,243 Financial liabilities: Junior subordinated debentures, at fair value $ 316,440 $ — $ — $ 316,440 Derivatives Interest rate lock commitments 137 — — 137 Interest rate forward sales commitments 535 — 535 — Interest rate swaps 260,064 — 260,064 — Foreign currency derivatives 355 — 355 — Total liabilities measured at fair value $ 577,531 $ — $ 260,954 $ 316,577
Fair Value Measurement Inputs and Valuation Techniques	The following table provides a description of the valuation technique, significant unobservable inputs, and qualitative information about the unobservable inputs for the Company's assets and liabilities classified as Level 3 and measured at fair value on a recurring basis as of March 31, 2024: Financial Instrument Fair Value Valuation Technique Unobservable Input Range of Inputs Weighted Average Assets: Residential mortgage servicing rights $ 110,444 Discounted cash flow Constant prepayment rate 6.07% - 27.52% 6.74% Discount rate 9.50% - 16.08% 10.24% Interest rate lock commitments, net $ 16 Internal pricing model Pull-through rate 64.27% - 100.00% 85.71% Liabilities: Junior subordinated debentures $ 309,544 Discounted cash flow Credit spread 2.11% - 6.13% 3.79%
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the periods indicated: Three Months Ended Three Months Ended March 31, 2024 March 31, 2023 (in thousands) Residential mortgage servicing rights Interest rate lock commitments, net Junior subordinated debentures, at fair value Residential mortgage servicing rights Interest rate lock commitments, net Junior subordinated debentures, at fair value Beginning balance $ 109,243 $ (137) $ (316,440) $ 185,017 $ 32 $ (323,639) Change included in earnings (36) (16) (7,583) (7,818) (32) (6,679) Change in fair values included in comprehensive income/loss — — 6,453 — — 25,812 Purchases and issuances 1,237 47 — 1,601 338 — Sales and settlements — 122 8,026 — (201) 6,785 Ending balance $ 110,444 $ 16 $ (309,544) $ 178,800 $ 137 $ (297,721) Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period $ 3,117 $ 16 $ (7,583) $ (2,937) $ 137 $ (6,679) Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period $ — $ — $ 6,453 $ — $ — $ 25,812
Fair Value Measurements, Nonrecurring	The following tables present information about the Company's assets and liabilities measured at fair value on a nonrecurring basis for which a nonrecurring change in fair value has been recorded during the reporting period. The amounts disclosed below represent the fair values at the time the nonrecurring fair value measurements were made, and not necessarily the fair value as of the dates reported upon. March 31, 2024 (in thousands) Total Level 1 Level 2 Level 3 Loans and leases $ 1,059 $ — $ — $ 1,059 Total assets measured at fair value on a nonrecurring basis $ 1,059 $ — $ — $ 1,059 December 31, 2023 (in thousands) Total Level 1 Level 2 Level 3 Loans and leases $ 5,036 $ — $ — $ 5,036 Total assets measured at fair value on a nonrecurring basis $ 5,036 $ — $ — $ 5,036
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings	The following table presents the losses resulting from nonrecurring fair value adjustments for the periods indicated: Three Months Ended (in thousands) March 31, 2024 March 31, 2023 Loans and leases $ 28,174 $ 18,734 Total losses from nonrecurring measurements $ 28,174 $ 18,734
Fair Value Option, Disclosures	The following table presents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans held for sale and loans held for investment accounted for under the fair value option as of the dates presented: March 31, 2024 December 31, 2023 (in thousands) Fair Value Aggregate Unpaid Principal Balance Fair Value Less Aggregate Unpaid Principal Balance Fair Value Aggregate Unpaid Principal Balance Fair Value Less Aggregate Unpaid Principal Balance Loans held for sale $ 47,201 $ 45,926 $ 1,275 $ 30,715 $ 29,629 $ 1,086 Loans $ 267,806 $ 315,435 $ (47,629) $ 275,140 $ 320,397 $ (45,257)

Business Combinations and Ass_3

Business Combinations and Asset Acquisitions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Feb. 28, 2023
Asset Acquisition [Line Items]
Goodwill	$ 1,029,234		$ 1,029,234
Business Combination, Acquisition Related Costs	4,478	$ 115,898
Umpqua Bank and Columbia Banking System Merger
Asset Acquisition [Line Items]
Goodwill				$ 1,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				$ 710,200
Business Combination, Acquisition Related Costs	$ 4,500	$ 115,900

Business Combinations and Ass_4

Business Combinations and Asset Acquisitions - Pro Forma (Details) - Umpqua Bank and Columbia Banking System Merger $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Asset Acquisition [Line Items]
Business acquisition, pro forma net interest income	$ 526,260
Business Acquisition, Pro Forma Non-interest Income	88,572
Business Acquisition, Pro Forma Net Income (Loss)	217,135
Business Combination, Acquisition Related Costs - Combined for proforma	$ 143,900

Investment Securities (Amortize

Investment Securities (Amortized Cost, Unrealized Gains And Losses, And Fair Value Of Investment Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Available-for-sale securities, amortized cost	$ 9,172,126	$ 9,262,777
Available-for-sale securities, unrealized gains	12,306	55,201
Available-for-sale securities, unrealized losses	(567,887)	(488,108)
Available for sale, at fair value	8,616,545	8,829,870
Investment securities held to maturity	2,247	2,300
Held-to-maturity securities, unrealized gains	692	725
Held-to-maturity securities, unrealized losses	0	0
Held-to-maturity securities, fair value	2,939	3,025
U.S. Treasury and agencies
Debt and Equity Securities, FV-NI [Line Items]
Available-for-sale securities, amortized cost	1,552,240	1,551,074
Available-for-sale securities, unrealized gains	1,132	6,192
Available-for-sale securities, unrealized losses	(85,979)	(78,874)
Available for sale, at fair value	1,467,393	1,478,392
Obligations of states and political subdivisions
Debt and Equity Securities, FV-NI [Line Items]
Available-for-sale securities, amortized cost	1,068,290	1,073,264
Available-for-sale securities, unrealized gains	8,788	20,451
Available-for-sale securities, unrealized losses	(25,149)	(21,610)
Available for sale, at fair value	1,051,929	1,072,105
Mortgage-backed securities and collateralized mortgage obligations
Debt and Equity Securities, FV-NI [Line Items]
Available-for-sale securities, amortized cost	6,551,596	6,638,439
Available-for-sale securities, unrealized gains	2,386	28,558
Available-for-sale securities, unrealized losses	(456,759)	(387,624)
Available for sale, at fair value	6,097,223	6,279,373
Investment securities held to maturity	2,247	2,300
Held-to-maturity securities, unrealized gains	692	725
Held-to-maturity securities, unrealized losses	0	0
Held-to-maturity securities, fair value	$ 2,939	$ 3,025

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) $ in Millions	Mar. 31, 2024 USD ($) branches	Dec. 31, 2023 USD ($) branches
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | branches	1,085	600
Debt Securities
Marketable Securities [Line Items]
Interest Receivable | $	$ 33.1	$ 34.1

Investment Securities (Schedule

Investment Securities (Schedule Of Fair Value And Unrealized Losses Of Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 4,495,441	$ 1,292,794
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(57,341)	(12,009)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,755,606	2,809,244
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(510,546)	(476,099)
Debt Securities, Available-for-sale, Unrealized Loss Position	7,251,047	4,102,038
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(567,887)	(488,108)
U.S. Treasury and agencies
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	338,230	99,898
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(3,305)	(1,074)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	816,265	822,245
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(82,674)	(77,800)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,154,495	922,143
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(85,979)	(78,874)
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	297,204	103,256
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,464)	(580)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	182,355	169,231
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(22,685)	(21,030)
Debt Securities, Available-for-sale, Unrealized Loss Position	479,559	272,487
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(25,149)	(21,610)
Mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	3,860,007	1,089,640
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(51,572)	(10,355)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,756,986	1,817,768
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(405,187)	(377,269)
Debt Securities, Available-for-sale, Unrealized Loss Position	5,616,993	2,907,408
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (456,759)	$ (387,624)

Investment Securities (Schedu_2

Investment Securities (Schedule Of Contractual Maturities Of Investment Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Available-for-sale securities, due within one year, amortized cost	$ 141,688
Available-for-sale securities, after one year through five years, amortized cost	2,259,829
Available-for-sale securities, after five years through ten years, amortized cost	2,187,571
Available-for-sale securities, after ten years, amortized cost	4,583,038
Available-for-sale securities, amortized cost	9,172,126	$ 9,262,777
Available-for-sale securities, due within one year, fair value	139,856
Available-for-sale securities, after one year through five years, fair value	2,213,929
Available-for-sale securities, after five years through ten years, fair value	2,103,386
Available-for-sale securities, after ten years, fair value	4,159,374
Debt Securities, Available-for-sale	8,616,545	8,829,870
Held-to-maturity securities, due within one year, amortized cost	0
Held-to-maturity securities, after one year through five years, amortized cost	2
Held-to-maturity securities, after five years through ten years, amortized cost	3
Held-to-maturity securities, after ten years, amortized cost	2,242
Investment securities held to maturity	2,247	2,300
Held-to-maturity securities, due within one year, fair value	0
Held-to-maturity securities, after one year through five years, fair value	2
Held-to-maturity securities, after five years through ten years, fair value	64
Held-to-maturity securities, after ten years, fair value	2,873
Held-to-maturity securities, fair value	$ 2,939	$ 3,025

Investment Securities (Investme

Investment Securities (Investment Securities Pledged To Secure Borrowings And Public Deposits) (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Investments, Debt and Equity Securities [Abstract]
To state and local government to secure public deposits, amortized cost	$ 1,800,912
To secure repurchased agreements, amortized cost	326,111
Other securities pledged, amortized cost	3,407,623
Total pledged securities, amortized cost	5,534,646
To state and local governments to secure public deposits, fair value	1,638,230
To secure repurchase agreements, fair value	297,673
Other securities pledged, fair value	3,139,037
Total pledged securities, fair value	$ 5,074,940

Loans and Leases (Schedule Of M

Loans and Leases (Schedule Of Major Types Of Loans And Leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Receivables [Abstract]
Non-owner occupied term, net	$ 6,557,768	$ 6,482,940
Owner occupied term, net	5,231,676	5,195,605
Multifamily, net	5,828,960	5,704,734
Construction & development, net	1,728,652	1,747,302
Residential development, net	284,117	323,899
Term, net	5,544,450	5,536,765
Lines of credit & other, net	2,491,557	2,430,127
Leases & equipment finance, net	1,706,759	1,729,512
Mortgage, net	6,128,884	6,157,166
Home equity loans & lines, net	1,950,421	1,938,166
Consumer & other, net	189,169	195,735
Total loans and leases, net of deferred fees and costs	$ 37,642,413	$ 37,441,951

Loans and Leases (Narrative) (D

Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 5,074,940
Loans and leases, deferred fees and costs	69,800		$ 71,800
Discounts on acquired loans	522,700		552,500
Interest income recognized on leases	4,900	$ 4,700
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	316,100		331,900
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	288,800		300,200
Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans pledged to secure borrowings	$ 21,100,000
Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	3 years
Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Lease term	5 years
Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Interest Receivable	$ 157,800		$ 154,900

Allowance for Credit Losses (Na

Allowance for Credit Losses (Narrative) (Details) $ in Thousands	3 Months Ended			9 Months Ended	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024 USD ($) risk_code	Mar. 31, 2023 USD ($)	Dec. 31, 2024	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Change in Modeled Expected Credit Losses due to Modification | $		$ 30,500
Length of time projected by model		10 years
Days Past Due on Leases and Equipment Finance		181 days
Interest Income on Non-Accrual Loans and Leases | $		$ 0	$ 0
Moody's Analytics' February 2024 S2
Financing Receivable, Allowance for Credit Loss [Line Items]
Probability economy performs better than scenario		75%
Probability economy performs worse than scenario		25%
Non homogeneous
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Threshold Period Past Due		90 days
Pass | Non homogeneous | Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		1
Pass | Non homogeneous | Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		9
Watch | Non homogeneous | Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		10
Watch | Non homogeneous | Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		11
Special mention | Non homogeneous
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		12
Substandard | Non homogeneous | Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		13
Substandard | Non homogeneous | Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		14
Doubtful | Non homogeneous
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		15
Loss | Non homogeneous
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		16
Loss | Non homogeneous | Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Internal risk rating code (number)		16
Expected | Moody's Analytics' February 2024 baseline
Financing Receivable, Allowance for Credit Loss [Line Items]
Real GDP Growth					2.20%	2%	1.60%		2.30%
Unemployment Rate					4%	4%	4.10%		3.90%
Fed Funds Rate					2.90%	3.20%	4%		4.90%
Expected | Moody's Analytics' February 2024 S2
Financing Receivable, Allowance for Credit Loss [Line Items]
Real GDP Growth					2.70%	2.80%	0.80%		1.30%
Unemployment Rate					4%	4.10%	5.80%		5.70%
Fed Funds Rate					2.90%	2.10%	2.40%		4.60%
Expected | Maximum | Moody's Analytics' February 2024 S2
Financing Receivable, Allowance for Credit Loss [Line Items]
Unemployment Rate	6.50%
Change in Unemployment Rate								1%
Percent Decrease of Stock Market				22%

Allowance for Credit Losses (Al

Allowance for Credit Losses (Allowance for Credit Losses Methodology) (Details) - USD ($) $ in Thousands		3 Months Ended
	Feb. 28, 2023	Mar. 31, 2024	Mar. 31, 2023
Allowance for credit losses on loans and leases
Balance, beginning of period		$ 440,871	$ 301,135
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date			26,492
(Recapture) provision for credit losses for loans and leases	$ 88,400	17,476	106,498
Charge-offs		(49,753)	(20,269)
Recoveries		5,750	3,608
Net recoveries (charge-offs)		(44,003)	(16,661)
Balance, end of period		414,344	417,464
Reserve for unfunded commitments
Balance, beginning of period		23,208	14,221
Off-Balance-Sheet, Credit Loss, Liability, acquired during the period			5,767
(Recapture) provision for credit losses on unfunded commitments		(340)	(959)
Balance, end of period		22,868	19,029
Total allowance for credit losses		437,212	436,493
Commercial real estate
Allowance for credit losses on loans and leases
Balance, beginning of period		125,888	77,813
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date			8,736
(Recapture) provision for credit losses for loans and leases		20,191	24,483
Charge-offs		(161)	0
Recoveries		358	58
Net recoveries (charge-offs)		197	58
Balance, end of period		146,276	111,090
Reserve for unfunded commitments
Balance, beginning of period		11,170	7,207
Off-Balance-Sheet, Credit Loss, Liability, acquired during the period			2,257
(Recapture) provision for credit losses on unfunded commitments		1,858	(1,059)
Balance, end of period		13,028	8,405
Total allowance for credit losses		159,304	119,495
Commercial
Allowance for credit losses on loans and leases
Balance, beginning of period		244,821	167,135
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date			17,204
(Recapture) provision for credit losses for loans and leases		436	70,997
Charge-offs		(47,232)	(19,248)
Recoveries		4,732	3,058
Net recoveries (charge-offs)		(42,500)	(16,190)
Balance, end of period		202,757	239,146
Reserve for unfunded commitments
Balance, beginning of period		7,841	3,049
Off-Balance-Sheet, Credit Loss, Liability, acquired during the period			3,066
(Recapture) provision for credit losses on unfunded commitments		(1,951)	266
Balance, end of period		5,890	6,381
Total allowance for credit losses		208,647	245,527
Residential
Allowance for credit losses on loans and leases
Balance, beginning of period		62,004	50,329
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date			454
(Recapture) provision for credit losses for loans and leases		(3,674)	9,955
Charge-offs		(490)	(248)
Recoveries		170	123
Net recoveries (charge-offs)		(320)	(125)
Balance, end of period		58,010	60,613
Reserve for unfunded commitments
Balance, beginning of period		2,940	3,196
Off-Balance-Sheet, Credit Loss, Liability, acquired during the period			268
(Recapture) provision for credit losses on unfunded commitments		(183)	(144)
Balance, end of period		2,757	3,320
Total allowance for credit losses		60,767	63,933
Consumer Portfolio Segment [Member]
Allowance for credit losses on loans and leases
Balance, beginning of period		8,158	5,858
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date			98
(Recapture) provision for credit losses for loans and leases		523	1,063
Charge-offs		(1,870)	(773)
Recoveries		490	369
Net recoveries (charge-offs)		(1,380)	(404)
Balance, end of period		7,301	6,615
Reserve for unfunded commitments
Balance, beginning of period		1,257	769
Off-Balance-Sheet, Credit Loss, Liability, acquired during the period			176
(Recapture) provision for credit losses on unfunded commitments		(64)	(22)
Balance, end of period		1,193	923
Total allowance for credit losses		$ 8,494	$ 7,538

Allowance for Credit Losses (No

Allowance for Credit Losses (Non-Accrual Loans and Leases and Loans and Leases Past Due) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	$ 37,642,413	$ 37,441,951
Non-Accrual	98,696	74,371
Financing Receivable, Nonaccrual, No Allowance	4,666	4,901
Loans Insured or Guaranteed by US Government Authorities [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	31,300	19,300
Greater than 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	94,500	40,014
60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	15,173	45,221
90 Days or More and Accruing (2)
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	44,902	39,542
90 Days or More and Accruing (2) | Loans Insured or Guaranteed by US Government Authorities [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	11,700	12,300
Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	154,575	124,777
Current and Other
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	37,389,142	37,242,803
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	19,631,173	19,454,480
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	6,557,768	6,482,940
Non-Accrual	5,382	4,359
Financing Receivable, Nonaccrual, No Allowance	37	52
Commercial real estate | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,231,676	5,195,605
Non-Accrual	34,354	24,330
Financing Receivable, Nonaccrual, No Allowance	1,492	1,352
Commercial real estate | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,828,960	5,704,734
Non-Accrual	0	0
Commercial real estate | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,728,652	1,747,302
Non-Accrual	0	0
Commercial real estate | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	284,117	323,899
Non-Accrual	0	0
Commercial real estate | Greater than 30 to 59 Days Past Due | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,237	1,270
Commercial real estate | Greater than 30 to 59 Days Past Due | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,275	3,078
Commercial real estate | Greater than 30 to 59 Days Past Due | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Greater than 30 to 59 Days Past Due | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Greater than 30 to 59 Days Past Due | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 60 to 89 Days Past Due | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	517	3,312
Commercial real estate | 60 to 89 Days Past Due | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	245	2,191
Commercial real estate | 60 to 89 Days Past Due | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 60 to 89 Days Past Due | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 60 to 89 Days Past Due | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 90 Days or More and Accruing (2) | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	253	437
Commercial real estate | 90 Days or More and Accruing (2) | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	433
Commercial real estate | 90 Days or More and Accruing (2) | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 90 Days or More and Accruing (2) | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | 90 Days or More and Accruing (2) | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Total Past Due | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	3,007	5,019
Commercial real estate | Total Past Due | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,520	5,702
Commercial real estate | Total Past Due | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Total Past Due | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Total Past Due | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	0
Commercial real estate | Current and Other | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	6,549,379	6,473,562
Commercial real estate | Current and Other | Owner occupied term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,194,802	5,165,573
Commercial real estate | Current and Other | Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,828,960	5,704,734
Commercial real estate | Current and Other | Construction & development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,728,652	1,747,302
Commercial real estate | Current and Other | Residential development, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	284,117	323,899
Commercial
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	9,742,766	9,696,404
Commercial | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,544,450	5,536,765
Non-Accrual	26,032	14,519
Financing Receivable, Nonaccrual, No Allowance	3,137	3,497
Commercial | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,491,557	2,430,127
Non-Accrual	2,335	2,760
Commercial | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,706,759	1,729,512
Non-Accrual	30,593	28,403
Commercial | Greater than 30 to 59 Days Past Due | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	4,946	6,341
Commercial | Greater than 30 to 59 Days Past Due | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	37,219	1,647
Commercial | Greater than 30 to 59 Days Past Due | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	26,837	22,217
Commercial | 60 to 89 Days Past Due | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,493	2,101
Commercial | 60 to 89 Days Past Due | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,736	1,137
Commercial | 60 to 89 Days Past Due | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	8,551	24,178
Commercial | 90 Days or More and Accruing (2) | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	832	202
Commercial | 90 Days or More and Accruing (2) | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,966	66
Commercial | 90 Days or More and Accruing (2) | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	7,935	7,965
Commercial | Total Past Due | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	7,271	8,644
Commercial | Total Past Due | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	40,921	2,850
Commercial | Total Past Due | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	43,323	54,360
Commercial | Current and Other | Term, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,511,147	5,513,602
Commercial | Current and Other | Lines of credit & other, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,448,301	2,424,517
Commercial | Current and Other | Leases & equipment finance, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,632,843	1,646,749
Residential
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	8,079,305	8,095,332
Residential | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	6,128,884	6,157,166
Non-Accrual	0	0
Residential | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,950,421	1,938,166
Non-Accrual	0	0
Residential | Greater than 30 to 59 Days Past Due | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	14,452	282
Residential | Greater than 30 to 59 Days Past Due | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	5,746	4,401
Residential | 60 to 89 Days Past Due | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	0	9,410
Residential | 60 to 89 Days Past Due | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	2,411	2,373
Residential | 90 Days or More and Accruing (2) | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	30,040	26,331
Residential | 90 Days or More and Accruing (2) | Mortgage, net | GNMA Loans
Financing Receivable, Past Due [Line Items]
GNMA Loans past due by 90 days, but not yet repurchased	1,600	1,000
Residential | 90 Days or More and Accruing (2) | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	3,439	3,782
Residential | Total Past Due | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	44,492	36,023
Residential | Total Past Due | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	11,596	10,556
Residential | Current and Other | Mortgage, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	6,084,392	6,121,143
Residential | Current and Other | Home equity loans & lines, net
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,938,825	1,927,610
Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	189,169	195,735
Non-Accrual	0	0
Consumer Portfolio Segment [Member] | Greater than 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	788	778
Consumer Portfolio Segment [Member] | 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	220	519
Consumer Portfolio Segment [Member] | 90 Days or More and Accruing (2)
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	437	326
Consumer Portfolio Segment [Member] | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	1,445	1,623
Consumer Portfolio Segment [Member] | Current and Other
Financing Receivable, Past Due [Line Items]
Total Loans and Leases	$ 187,724	$ 194,112

Allowance for Credit Losses (Co

Allowance for Credit Losses (Collateral Dependent Loans and Leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 37,642,413	$ 37,441,951
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	19,631,173	19,454,480
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	6,557,768	6,482,940
Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	5,231,676	5,195,605
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	9,742,766	9,696,404
Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	5,544,450	5,536,765
Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,491,557	2,430,127
Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,706,759	1,729,512
Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	8,079,305	8,095,332
Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	6,128,884	6,157,166
Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,950,421	$ 1,938,166
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	59,438
Residential Real Estate | Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Residential Real Estate | Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Residential Real Estate | Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Residential Real Estate | Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Residential Real Estate | Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Residential Real Estate | Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	56,920
Residential Real Estate | Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,518
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	38,453
Commercial Real Estate | Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	5,290
Commercial Real Estate | Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	31,710
Commercial Real Estate | Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Commercial Real Estate | Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,453
Commercial Real Estate | Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Commercial Real Estate | Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Commercial Real Estate | Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
General Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	47,795
General Business Assets | Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
General Business Assets | Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
General Business Assets | Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	16,952
General Business Assets | Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	250
General Business Assets | Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	30,593
General Business Assets | Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
General Business Assets | Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,265
Other | Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other | Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other | Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,265
Other | Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other | Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other | Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Other | Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Total
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	149,951
Total | Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	5,290
Total | Commercial real estate | Owner occupied term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	31,710
Total | Commercial | Term, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	21,217
Total | Commercial | Lines of credit & other, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,703
Total | Commercial | Leases & equipment finance, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	30,593
Total | Residential | Mortgage, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	56,920
Total | Residential | Home equity loans & lines, net
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 2,518

Allowance for Credit Losses (Sc

Allowance for Credit Losses (Schedule Of Financial Difficulty and Modification) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 34,902	$ 12,916
% of total class of financing receivable	0.09%	0.03%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 678
Financing Receivable, Modified, Subsequent Default		$ 0
Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	34,126
Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	98
60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	8,970	1,355
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	25,932	429
Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		207
Combination - Term Extension and Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		1,938
Combination - Principal forgiveness and other than insignificant payment delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		8,987
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 17,630
% of total class of financing receivable	0.27%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 0
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member] | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	17,630
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member] | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member] | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member] | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Owner occupied term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 534
% of total class of financing receivable	0.01%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 534
Commercial real estate | Owner occupied term, net | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Owner occupied term, net | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Owner occupied term, net | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Owner occupied term, net | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Term Extension | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Term Extension | Owner occupied term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial real estate | Payment Deferral | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	17,630
Financing Receivable, Modified, Increase (Decrease) from Modification	4,000
Commercial real estate | Payment Deferral | Owner occupied term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	534
Financing Receivable, Modified, Increase (Decrease) from Modification	51
Commercial | Term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 478
% of total class of financing receivable	0.01%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 0
Commercial | Term, net | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	478
Commercial | Term, net | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Term, net | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Term, net | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 6,839	$ 1,355
% of total class of financing receivable	0.27%	0.06%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 144
Commercial | Lines of credit & other, net | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	6,695
Commercial | Lines of credit & other, net | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Lines of credit & other, net | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Lines of credit & other, net | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 785	$ 429
% of total class of financing receivable	0.05%	0.02%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 0
Commercial | Leases & equipment finance, net | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	687
Commercial | Leases & equipment finance, net | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	98
Commercial | Leases & equipment finance, net | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Leases & equipment finance, net | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Commercial | Term Extension | Term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 478
Financing receivable, modified, weighted average term increase from modification	3 months
Commercial | Term Extension | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 6,695	$ 1,355
Financing receivable, modified, weighted average term increase from modification	6 months	10 months
Commercial | Term Extension | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 785	$ 0
Financing receivable, modified, weighted average term increase from modification	7 months
Commercial | Payment Deferral | Term, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 0
Commercial | Payment Deferral | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	144	0
Commercial | Payment Deferral | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0	$ 429
Financing receivable, modified, weighted average term increase from modification		9 months
Commercial | Combination - Interest Rate Reduction and Term Extension | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 0
Commercial | Combination - Interest Rate Reduction and Term Extension | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Commercial | Combination - Term Extension and Principal Forgiveness | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Commercial | Combination - Term Extension and Principal Forgiveness | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Commercial | Combination - Principal forgiveness and other than insignificant payment delay | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Commercial | Combination - Principal forgiveness and other than insignificant payment delay | Leases & equipment finance, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Residential | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 8,636	$ 10,925
% of total class of financing receivable	0.14%	0.18%
Financing Receivable, Modified in Period, Nonaccrual, Amount	$ 0
Residential | Mortgage, net | Current and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	8,636
Residential | Mortgage, net | Greater than 30 to 59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Residential | Mortgage, net | 60 to 89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Residential | Mortgage, net | 90 Days or More and Accruing (2)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	0
Residential | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 207
% of total class of financing receivable		0.01%
Residential | Term Extension | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	$ 1,012	$ 0
Financing receivable, modified, weighted average term increase from modification	13 years 6 months	13 years 3 months 18 days
Residential | Term Extension | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 0
Residential | Payment Deferral | Lines of credit & other, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified, Increase (Decrease) from Modification	$ 63
Residential | Payment Deferral | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs	7,624	0
Financing Receivable, Modified, Increase (Decrease) from Modification	$ 534	499
Residential | Payment Deferral | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Residential | Combination - Interest Rate Reduction and Term Extension | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Residential | Combination - Interest Rate Reduction and Term Extension | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 207
Financing receivable, modified, weighted average term increase from modification		7 years 1 month 6 days
Financing receivable, modified, weighted average interest rate decrease from modification		3.24%
Residential | Combination - Term Extension and Principal Forgiveness | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 1,938
Residential | Combination - Term Extension and Principal Forgiveness | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		0
Residential | Combination - Principal forgiveness and other than insignificant payment delay | Mortgage, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		8,987
Residential | Combination - Principal forgiveness and other than insignificant payment delay | Home equity loans & lines, net
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings, net of deferred fees and costs		$ 0

Allowance for Credit Losses (In

Allowance for Credit Losses (Internal Risk Rating By Loan Class) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	$ 605,197	$ 3,747,171
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,792,619	8,958,366
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,891,193	8,055,492
Financing Receivable, Originated Three Years before Latest Fiscal Year	7,942,177	2,712,461
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,677,887	2,838,682
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,088,391	5,504,993
Financing Receivable, Revolving	5,609,245	5,504,255
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	35,704	120,531
Financing Receivable, before Allowance for Credit Loss, Total	37,642,413	37,441,951
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	244,005	1,763,678
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,837,716	5,176,047
Financing Receivable, Originated Two Years before Latest Fiscal Year	5,226,986	4,426,895
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,403,311	1,675,601
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,648,885	2,022,584
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,928,118	4,072,737
Financing Receivable, Revolving	332,349	310,789
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	9,803	6,149
Financing Receivable, before Allowance for Credit Loss, Total	19,631,173	19,454,480
Commercial real estate | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	64,408	614,639
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	623,728	1,308,209
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,323,157	1,185,963
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,185,248	617,448
Financing Receivable, Originated Four Years before Latest Fiscal Year	662,611	802,515
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,646,780	1,912,972
Financing Receivable, Revolving	51,836	41,194
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	6,557,768	6,482,940
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	70	0
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	70	0
Commercial real estate | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	129,268	538,091
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	527,850	1,082,008
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,095,762	1,026,586
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,011,358	471,193
Financing Receivable, Originated Four Years before Latest Fiscal Year	462,251	606,739
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,932,459	1,401,993
Financing Receivable, Revolving	72,672	68,995
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	56	0
Financing Receivable, before Allowance for Credit Loss, Total	5,231,676	5,195,605
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	16
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	91	787
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	91	803
Commercial real estate | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,410	272,084
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	278,014	1,982,075
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,006,317	1,661,770
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,741,050	400,280
Financing Receivable, Originated Four Years before Latest Fiscal Year	414,205	591,340
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,321,517	745,705
Financing Receivable, Revolving	55,219	51,480
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	228	0
Financing Receivable, before Allowance for Credit Loss, Total	5,828,960	5,704,734
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	0	0
Commercial real estate | Construction & development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	26,736	248,623
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	319,263	717,677
Financing Receivable, Originated Two Years before Latest Fiscal Year	758,303	530,305
Financing Receivable, Originated Three Years before Latest Fiscal Year	450,708	186,680
Financing Receivable, Originated Four Years before Latest Fiscal Year	109,752	21,990
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	26,211	10,738
Financing Receivable, Revolving	37,679	31,289
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,728,652	1,747,302
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	0	0
Commercial real estate | Residential development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	11,183	90,241
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	88,861	86,078
Financing Receivable, Originated Two Years before Latest Fiscal Year	43,447	22,271
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,947	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	66	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,151	1,329
Financing Receivable, Revolving	114,943	117,831
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	9,519	6,149
Financing Receivable, before Allowance for Credit Loss, Total	284,117	323,899
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	0	0
Commercial real estate | Pass/Watch | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	46,778	582,178
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	593,569	1,307,143
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,319,246	1,182,485
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,181,377	615,021
Financing Receivable, Originated Four Years before Latest Fiscal Year	661,282	764,821
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,554,339	1,832,231
Financing Receivable, Revolving	51,836	41,194
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	6,408,427	6,325,073
Commercial real estate | Pass/Watch | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	128,470	532,482
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	520,659	1,067,388
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,080,381	972,130
Financing Receivable, Originated Three Years before Latest Fiscal Year	955,675	448,569
Financing Receivable, Originated Four Years before Latest Fiscal Year	438,732	581,616
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,857,268	1,351,172
Financing Receivable, Revolving	70,743	67,063
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	56	0
Financing Receivable, before Allowance for Credit Loss, Total	5,051,984	5,020,420
Commercial real estate | Pass/Watch | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,410	272,084
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	278,014	1,982,075
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,006,317	1,660,492
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,739,778	400,280
Financing Receivable, Originated Four Years before Latest Fiscal Year	413,265	590,379
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,311,940	745,705
Financing Receivable, Revolving	55,219	51,480
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	228	0
Financing Receivable, before Allowance for Credit Loss, Total	5,817,171	5,702,495
Commercial real estate | Pass/Watch | Construction & development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	26,736	248,623
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	319,263	716,207
Financing Receivable, Originated Two Years before Latest Fiscal Year	756,839	530,305
Financing Receivable, Originated Three Years before Latest Fiscal Year	442,504	186,680
Financing Receivable, Originated Four Years before Latest Fiscal Year	109,752	21,990
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	26,211	10,738
Financing Receivable, Revolving	37,679	31,289
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,718,984	1,745,832
Commercial real estate | Pass/Watch | Residential development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	11,183	90,241
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	88,861	86,078
Financing Receivable, Originated Two Years before Latest Fiscal Year	43,447	22,271
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,947	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	66	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,151	1,329
Financing Receivable, Revolving	114,943	116,490
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	9,519	6,149
Financing Receivable, before Allowance for Credit Loss, Total	284,117	322,558
Commercial real estate | Special mention | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	317
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,684	3,478
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,810	1,337
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,329	2,480
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	23,789	16,352
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	30,612	23,964
Commercial real estate | Special mention | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	264	1,575
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,308	5,950
Financing Receivable, Originated Two Years before Latest Fiscal Year	5,834	6,175
Financing Receivable, Originated Three Years before Latest Fiscal Year	7,600	4,945
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,776	14,610
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	32,124	15,513
Financing Receivable, Revolving	1,929	1,932
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	54,835	50,700
Commercial real estate | Special mention | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	1,278
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,272	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	940	961
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,429	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	8,641	2,239
Commercial real estate | Special mention | Construction & development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	1,470
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,464	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	8,204	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	9,668	1,470
Commercial real estate | Special mention | Residential development, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year		0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0
Financing Receivable, Revolving		1,341
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost		0
Financing Receivable, before Allowance for Credit Loss, Total		1,341
Commercial real estate | Substandard | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	17,630	32,461
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	30,159	749
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,227	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	61	1,090
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	35,214
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	68,636	64,304
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	118,713	133,818
Commercial real estate | Substandard | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	534	4,034
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	5,883	7,707
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,584	48,281
Financing Receivable, Originated Three Years before Latest Fiscal Year	47,894	17,275
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,339	10,513
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	43,038	35,216
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	123,272	123,026
Commercial real estate | Substandard | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,148
Financing Receivable, Revolving	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0
Financing Receivable, before Allowance for Credit Loss, Total	3,148
Commercial real estate | Doubtful | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	189	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	29	90
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	218	90
Commercial real estate | Loss | Commercial Real Estate, Non-owner Occupied Term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	16	85
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	16	85
Commercial real estate | Loss | Owner occupied term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	963
Financing Receivable, Originated Two Years before Latest Fiscal Year	963	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	404
Financing Receivable, Originated Four Years before Latest Fiscal Year	404	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	2
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,367	1,369
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	338,098	1,718,460
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,670,410	1,914,454
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,794,931	1,259,451
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,200,751	508,328
Financing Receivable, Originated Four Years before Latest Fiscal Year	506,607	365,168
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	939,214	640,308
Financing Receivable, Revolving	3,273,535	3,196,423
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	19,220	93,812
Financing Receivable, before Allowance for Credit Loss, Total	9,742,766	9,696,404
Commercial | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	142,781	861,823
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	856,676	1,246,020
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,211,526	977,414
Financing Receivable, Originated Three Years before Latest Fiscal Year	959,611	396,356
Financing Receivable, Originated Four Years before Latest Fiscal Year	413,506	282,947
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	828,253	588,163
Financing Receivable, Revolving	1,130,911	1,129,029
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	1,186	55,013
Financing Receivable, before Allowance for Credit Loss, Total	5,544,450	5,536,765
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	3,000
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	1,418
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	185	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	30	415
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	143	389
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	527	886
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	820	44
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	808
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	1,705	6,960
Commercial | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,504	113,643
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	144,278	111,280
Financing Receivable, Originated Two Years before Latest Fiscal Year	85,345	59,035
Financing Receivable, Originated Three Years before Latest Fiscal Year	49,770	12,266
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,614	10,928
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	26,388	16,782
Financing Receivable, Revolving	2,142,624	2,067,394
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	18,034	38,799
Financing Receivable, before Allowance for Credit Loss, Total	2,491,557	2,430,127
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	30
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	85	168
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	163	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	47
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	4	144
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	140	45
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	17,399	1,058
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	574	1,809
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	18,365	3,301
Commercial | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	182,813	742,994
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	669,456	557,154
Financing Receivable, Originated Two Years before Latest Fiscal Year	498,060	223,002
Financing Receivable, Originated Three Years before Latest Fiscal Year	191,370	99,706
Financing Receivable, Originated Four Years before Latest Fiscal Year	80,487	71,293
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	84,573	35,363
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,706,759	1,729,512
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	2,324
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	3,780	47,116
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	14,362	31,569
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	5,938	9,111
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	1,865	6,394
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	1,217	3,087
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	27,162	99,601
Commercial | Pass/Watch | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	142,479	835,662
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	850,557	1,215,539
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,179,718	933,970
Financing Receivable, Originated Three Years before Latest Fiscal Year	917,082	391,735
Financing Receivable, Originated Four Years before Latest Fiscal Year	406,535	271,974
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	792,210	560,595
Financing Receivable, Revolving	1,121,858	1,097,630
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	1,186	50,874
Financing Receivable, before Allowance for Credit Loss, Total	5,411,625	5,357,979
Commercial | Pass/Watch | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	11,658	105,360
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	100,991	105,791
Financing Receivable, Originated Two Years before Latest Fiscal Year	80,012	58,441
Financing Receivable, Originated Three Years before Latest Fiscal Year	49,341	12,266
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,614	10,927
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	25,815	16,108
Financing Receivable, Revolving	2,012,335	1,922,115
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	12,559	5,676
Financing Receivable, before Allowance for Credit Loss, Total	2,305,325	2,236,684
Commercial | Pass/Watch | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	181,850	682,866
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	606,855	501,867
Financing Receivable, Originated Two Years before Latest Fiscal Year	446,654	200,499
Financing Receivable, Originated Three Years before Latest Fiscal Year	171,616	92,402
Financing Receivable, Originated Four Years before Latest Fiscal Year	75,045	61,065
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	80,587	33,908
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,562,607	1,572,607
Commercial | Special mention | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	302	23,250
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	14,875
Financing Receivable, Originated Two Years before Latest Fiscal Year	12,795	29,128
Financing Receivable, Originated Three Years before Latest Fiscal Year	8,811	109
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,193	3,340
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	20,323	16,476
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	43,424	87,178
Commercial | Special mention | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	476
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	712	635
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,489	394
Financing Receivable, Originated Three Years before Latest Fiscal Year	397	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	91	80
Financing Receivable, Revolving	33,055	61,927
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	732	403
Financing Receivable, before Allowance for Credit Loss, Total	36,476	63,915
Commercial | Special mention | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	111	46,806
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	47,131	15,962
Financing Receivable, Originated Two Years before Latest Fiscal Year	16,026	6,182
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,717	1,688
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,581	7,224
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	981	77
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	71,547	77,939
Commercial | Substandard | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	2,911
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	6,119	13,862
Financing Receivable, Originated Two Years before Latest Fiscal Year	18,959	13,981
Financing Receivable, Originated Three Years before Latest Fiscal Year	28,547	3,068
Financing Receivable, Originated Four Years before Latest Fiscal Year	3,505	7,385
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	12,979	7,859
Financing Receivable, Revolving	9,053	31,399
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	4,139
Financing Receivable, before Allowance for Credit Loss, Total	79,162	84,604
Commercial | Substandard | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	846	7,807
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	42,575	4,161
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,653	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	32	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	481	593
Financing Receivable, Revolving	97,234	83,304
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	4,743	32,509
Financing Receivable, before Allowance for Credit Loss, Total	149,564	128,374
Commercial | Substandard | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	832	7,094
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,399	15,274
Financing Receivable, Originated Two Years before Latest Fiscal Year	10,865	6,704
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,483	2,163
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,243	1,246
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,535	1,161
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	23,357	33,642
Commercial | Doubtful | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	1,329
Financing Receivable, Originated Two Years before Latest Fiscal Year	54	335
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,836	796
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,625	197
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	729	699
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	7,244	3,356
Commercial | Doubtful | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year		0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0
Financing Receivable, Revolving		48
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost		211
Financing Receivable, before Allowance for Credit Loss, Total		259
Commercial | Doubtful | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	20	5,833
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,174	22,566
Financing Receivable, Originated Two Years before Latest Fiscal Year	22,743	9,036
Financing Receivable, Originated Three Years before Latest Fiscal Year	9,057	3,161
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,490	1,700
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,372	208
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	45,856	42,504
Commercial | Loss | Term, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	415
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	335	648
Financing Receivable, Originated Four Years before Latest Fiscal Year	648	51
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,012	2,534
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	2,995	3,648
Commercial | Loss | Lines of credit & other, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	693
Financing Receivable, Originated Two Years before Latest Fiscal Year	191	200
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	1
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1	1
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	192	895
Commercial | Loss | Leases & equipment finance, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	395
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	897	1,485
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,772	581
Financing Receivable, Originated Three Years before Latest Fiscal Year	497	292
Financing Receivable, Originated Four Years before Latest Fiscal Year	128	58
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	98	9
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	3,392	2,820
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	6,703	224,918
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	259,934	1,852,894
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,855,744	2,362,009
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,331,652	523,566
Financing Receivable, Originated Four Years before Latest Fiscal Year	517,929	447,434
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,213,308	786,796
Financing Receivable, Revolving	1,887,690	1,877,886
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	6,345	19,829
Financing Receivable, before Allowance for Credit Loss, Total	8,079,305	8,095,332
Residential | Mortgage, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	6,689	224,342
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	259,010	1,851,652
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,852,644	2,360,953
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,329,700	523,466
Financing Receivable, Originated Four Years before Latest Fiscal Year	517,183	446,287
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,163,658	750,466
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	6,128,884	6,157,166
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	368	6
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	368	6
Residential | Home equity loans & lines, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	14	576
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	924	1,242
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,100	1,056
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,952	100
Financing Receivable, Originated Four Years before Latest Fiscal Year	746	1,147
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	49,650	36,330
Financing Receivable, Revolving	1,887,690	1,877,886
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	6,345	19,829
Financing Receivable, before Allowance for Credit Loss, Total	1,950,421	1,938,166
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	0	0
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	0	12
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	0	29
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	0
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	49	52
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	73	448
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	0	0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	122	541
Residential | Pass/Watch | Mortgage, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	6,689	221,207
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	254,228	1,845,395
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,845,613	2,355,420
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,317,192	521,177
Financing Receivable, Originated Four Years before Latest Fiscal Year	515,012	443,152
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,147,222	735,801
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	6,085,956	6,122,152
Residential | Pass/Watch | Home equity loans & lines, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	14	562
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	896	1,242
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,647	1,056
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,749	100
Financing Receivable, Originated Four Years before Latest Fiscal Year	645	896
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	47,880	35,677
Financing Receivable, Revolving	1,879,151	1,870,270
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	5,842	17,807
Financing Receivable, before Allowance for Credit Loss, Total	1,938,824	1,927,610
Residential | Special mention | Mortgage, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	1,125
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,657	916
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,270	1,737
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,024	651
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,050	1,156
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,451	4,109
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	14,452	9,694
Residential | Special mention | Home equity loans & lines, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	28	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	253	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	28	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	114
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	964	378
Financing Receivable, Revolving	6,845	5,052
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	38	1,230
Financing Receivable, before Allowance for Credit Loss, Total	8,156	6,774
Residential | Substandard | Mortgage, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	1,851
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,094	2,617
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,958	2,826
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,604	787
Financing Receivable, Originated Four Years before Latest Fiscal Year	987	1,759
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	9,201	8,746
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	18,844	18,586
Residential | Substandard | Home equity loans & lines, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	175	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	137
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	376	190
Financing Receivable, Revolving	475	1,278
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	71	174
Financing Receivable, before Allowance for Credit Loss, Total	1,097	1,779
Residential | Loss | Mortgage, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	159
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,031	2,724
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,803	970
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,880	851
Financing Receivable, Originated Four Years before Latest Fiscal Year	134	220
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,784	1,810
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	9,632	6,734
Residential | Loss | Home equity loans & lines, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	14
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	200	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	101	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	430	85
Financing Receivable, Revolving	1,219	1,286
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	394	618
Financing Receivable, before Allowance for Credit Loss, Total	2,344	2,003
Consumer Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	16,391	40,115
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	24,559	14,971
Financing Receivable, Originated Two Years before Latest Fiscal Year	13,532	7,137
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,463	4,966
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,466	3,496
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,751	5,152
Financing Receivable, Revolving	115,671	119,157
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	336	741
Financing Receivable, before Allowance for Credit Loss, Total	189,169	195,735
Financing receivable, excluding accrued interest, Year One, Originated, Current Fiscal Year, Write-off	0	3,313
Financing receivable, excluding accrued interest, Year Two, Originated, Current Fiscal Year Two, Write-off	922	132
Financing receivable, excluding accrued interest, Year Three, Originated, Current Fiscal Year, Write-off	52	23
Financing receivable, excluding accrued interest, Year Four, Originated, Current Fiscal Year, Write-off	5	20
Financing receivable, excluding accrued interest, Year Five, Originated, Current Fiscal Year, Write-off	0	29
Financing receivable, excluding accrued interest, Originated, More than Five Years before Current Fiscal Year, Write-off	76	288
Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff	619	1,485
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff	196	472
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff	1,870	5,762
Consumer Portfolio Segment [Member] | Pass/Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	16,391	39,977
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	24,413	14,919
Financing Receivable, Originated Two Years before Latest Fiscal Year	13,490	7,132
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,444	4,953
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,458	3,441
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,490	5,022
Financing Receivable, Revolving	114,815	118,125
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	221	543
Financing Receivable, before Allowance for Credit Loss, Total	187,722	194,112
Consumer Portfolio Segment [Member] | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	138
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	133	52
Financing Receivable, Originated Two Years before Latest Fiscal Year	4	5
Financing Receivable, Originated Three Years before Latest Fiscal Year	19	13
Financing Receivable, Originated Four Years before Latest Fiscal Year	8	52
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	147	122
Financing Receivable, Revolving	613	779
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	85	135
Financing Receivable, before Allowance for Credit Loss, Total	1,009	1,296
Consumer Portfolio Segment [Member] | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	13	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	38	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	3
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	107	1
Financing Receivable, Revolving	240	251
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	30	63
Financing Receivable, before Allowance for Credit Loss, Total	428	318
Consumer Portfolio Segment [Member] | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7	7
Financing Receivable, Revolving	3	2
Financing Receivable, Revolving to Non-Revolving Loans Amortized Cost	0	0
Financing Receivable, before Allowance for Credit Loss, Total	$ 10	$ 9

Intangible Assets, Goodwill a_3

Intangible Assets, Goodwill and Other (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 1,029,234,000		$ 1,029,234,000
Finite-Lived Intangible Asset, Useful Life	10 years
Goodwill and Intangible Asset Impairment	$ 0
Intangible amortization	$ (32,091,000)	$ (12,660,000)

Intangible Assets, Goodwill a_4

Intangible Assets, Goodwill and Other (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross	$ 764,791	$ 764,791
Finite-Lived Intangible Assets, Accumulated Amortization	193,203	161,112
Finite-Lived Intangible Assets, Net	$ 571,588	$ 603,679

Intangible Assets, Goodwill a_5

Intangible Assets, Goodwill and Other (Schedule of Other Intangible Assets Future Amortization Expense) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2024	$ 87,340
2025	105,458
2026	92,545
2027	79,632
2028	66,719
Thereafter	139,894
Total intangible assets	$ 571,588	$ 603,679

Residential Mortgage Servicin_3

Residential Mortgage Servicing Rights (Schedule Of Changes In Mortgage Servicing Rights) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 109,243	$ 185,017
Additions for new MSR capitalized	1,237	1,601
Changes due to collection/realization of expected cash flows over time	(3,153)	(4,881)
Changes due to valuation inputs or assumptions	3,117	(2,937)
Balance, end of period	$ 110,444	$ 178,800

Residential Mortgage Servicin_4

Residential Mortgage Servicing Rights (Schedule Of Information Relates To Serviced Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Transfers and Servicing [Abstract]
Balance of loans serviced for others	$ 8,081,039	$ 8,175,664
MSR as a percentage of serviced loans	1.37%	1.34%

Residential Mortgage Servicin_5

Residential Mortgage Servicing Rights (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Transfers and Servicing of Financial Assets [Abstract]
Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset	$ 6	$ 9.4

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Borrowings	$ 3,900,000	$ 3,950,000
Advance from Federal Home Loan Bank	2,400,000	3,800,000
FRB Bank Team Funding Program | Federal Reserve Bank Advances [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other Short-Term Borrowings	$ 1,600,000	$ 200,000
Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB Advances Fixed Interest Rates	5.25%
Maximum | FRB Bank Team Funding Program | Federal Reserve Bank Advances [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other short-term borrowings, interest rate	4.93%
Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB Advances Fixed Interest Rates	5.10%
Minimum | FRB Bank Team Funding Program | Federal Reserve Bank Advances [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other short-term borrowings, interest rate	4.76%

Commitments and Contingencies_2

Commitments and Contingencies (Schedule Of Commitments And Contingencies) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Commitments and contingent liabilities
Commitments to extend credit
Loss Contingencies [Line Items]
Commitments and contingent liabilities	11,203,778
Forward sales commitments
Loss Contingencies [Line Items]
Commitments and contingent liabilities	68,244	39,500
Commitments to originate residential mortgage loans held for sale
Loss Contingencies [Line Items]
Commitments and contingent liabilities	40,745	$ 20,600
Standby letters of credit
Loss Contingencies [Line Items]
Commitments and contingent liabilities	$ 196,748

Commitments and Contingencies_3

Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Financial guarantees in connection with standby letters of credit	$ 0	$ 0
Standby letters of credit expiring within one year	181.8
Standby letters of credit expiring thereafter	14.9
Loss Contingency Accrual	6.9
iCap Entities [Member]
Concentration Risk [Line Items]
Loss Contingency, Damages Sought, Value	250
Professional Financial Investors, Inc. and Professional Investors Security Fund, Inc. [Member]
Concentration Risk [Line Items]
Prior Bankruptcy Recoveries by Plaintiffs	110
Minimum | Professional Financial Investors, Inc. and Professional Investors Security Fund, Inc. [Member]
Concentration Risk [Line Items]
Loss Contingency, Damages Sought, Value	386.2
Maximum | Professional Financial Investors, Inc. and Professional Investors Security Fund, Inc. [Member]
Concentration Risk [Line Items]
Loss Contingency, Damages Sought, Value	$ 429.8
Product Concentration Risk | Revenue Benchmark | Real Estate Loans As Part Of Loan Portfolio
Concentration Risk [Line Items]
Concentration risk (as a percent)	75%		75%
Product Concentration Risk | Revenue Benchmark | Multifamily Loans as Part of Loan portfolio [Member]
Concentration Risk [Line Items]
Concentration risk (as a percent)	19%
Product Concentration Risk | Revenue Benchmark | Commercial Office Loans as Part of Loan portfolio [Member]
Concentration Risk [Line Items]
Concentration risk (as a percent)	8%

Derivatives (Narrative) (Detail

Derivatives (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Counterparty default losses on forward contracts	$ 0	$ 0
Credit Derivatives [Line Items]
Commitments
Collateral required to be posted under agreements	85,600		88,300
Variation Margin Adjustment	200,300		166,300
Interest rate futures
Credit Derivatives [Line Items]
Derivative, notional amount	156,000		150,000
Mortgage-Backed Security
Credit Derivatives [Line Items]
Derivative, notional amount	17,000		36,000
Interest rate swaps
Credit Derivatives [Line Items]
Derivative, notional amount			4,700,000
Derivative Asset, Notional Amount	4,500,000
Derivative Liability, Notional Amount	4,700,000
Commitments To Originate Loans Held For Sale
Credit Derivatives [Line Items]
Commitments	40,745		20,600
Interest rate forward sales commitments
Credit Derivatives [Line Items]
Commitments	$ 68,244		$ 39,500

Derivatives (Summary Of Types O

Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 114,763	$ 38,085
Derivative Liability	312,489	261,091
Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	16
Derivative Liability		137
Interest rate forward sales commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	74	9
Derivative Liability	188	535
Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives	114,347	33,874
Derivative Liability	310,985	260,064
Interest rate contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	114,347
Derivative Liability	310,985
Interest rate contracts | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	16	0
Derivative Liability	$ 0	$ 137
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Future
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0	$ 3,745
Derivative Liability	$ 1,134	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Interest rate forward sales commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 74	$ 9
Derivative Liability	$ 188	$ 535
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 114,347	$ 33,874
Derivative Liability	$ 310,985	$ 260,064
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Foreign currency derivatives
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 326	$ 457
Derivative Liability	$ 182	$ 355
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities

Derivatives (Summary Of Types_2

Derivatives (Summary Of Types Of Derivatives And Gains (Losses) Recorded) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ (2,833)	$ (1,761)
Asset Derivatives	114,763		$ 38,085
Derivative Liability	312,489		261,091
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Assets Gross Amounts Offsetting the Balance Sheets	0
Asset Derivatives	114,347
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset	9,623
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	98,026
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral	6,698
Derivative Liability, Gross Amounts Offset in Balance Sheets	0
Derivative Liability	310,985
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset	9,623
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset	0
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral	301,362
Interest rate contracts | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets, gross amounts of recognized assets	114,347
Derivative Liability, Subject to Master Netting Arrangement, before Offset	310,985
Foreign currency derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ 42	$ 30
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Asset Derivatives	$ 326		457
Derivative Liability	182		355
Interest rate lock commitments
Derivative Instruments, Gain (Loss) [Line Items]
Asset Derivatives	16
Derivative Liability			137
Interest rate lock commitments | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ 153	$ 105
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Asset Derivatives	$ 16		0
Derivative Liability	0		137
Future | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ (4,271)	$ 2,650
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Asset Derivatives	$ 0		3,745
Derivative Liability	1,134		0
Interest rate forward sales commitments
Derivative Instruments, Gain (Loss) [Line Items]
Asset Derivatives	74		9
Derivative Liability	188		535
Interest rate forward sales commitments | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ 46	$ (1,003)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Residential mortgage banking revenue, net	Residential mortgage banking revenue, net
Asset Derivatives	$ 74		9
Derivative Liability	188		535
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Asset Derivatives	114,347		33,874
Derivative Liability	310,985		260,064
Interest rate swaps | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Gain (Losses)	$ 1,197	$ (3,543)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Asset Derivatives	$ 114,347		33,874
Derivative Liability	$ 310,985		$ 260,064

Earnings Per Common Share (Comp

Earnings Per Common Share (Computation Of Basic And Diluted Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income (loss)	$ 124,080	$ 93,531	$ 135,845	$ 133,377	$ (14,038)
Weighted average number of common shares outstanding - basic (in shares)	208,260				156,383
Effect of potentially dilutive common shares (in shares)	696				0
Weighted average number of shares outstanding, diluted (in shares)	208,956				156,383
Earnings (loss) per common share:
Basic (in dollars per share)	$ 0.60				$ (0.09)
Diluted (in dollars per share)	$ 0.59				$ (0.09)

Earnings Per Common Share (Sche

Earnings Per Common Share (Schedule Of Weighted Average Outstanding Securities Not Included In The Computation Of Diluted Earnings Per Common Share) (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	601	783

Fair Value Measurement (Schedul

Fair Value Measurement (Schedule Of Carrying Value And Fair Value Of Financial Instruments Not Recorded At Fair Value) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financial assets:
Equity and other investment securities	$ 77,203	$ 76,995
Investment securities available for sale	8,616,545	8,829,870
Investment securities held to maturity	2,247	2,300
Loans held for sale	47,201	30,715
Loans and leases, net	37,228,069	37,001,080
Restricted equity securities	116,274	179,274
Residential mortgage servicing rights	110,444	109,243	$ 178,800	$ 185,017
Bank-owned life insurance	682,293	680,948
Derivatives	114,763	38,085
Financial liabilities:
Securities sold under agreements to repurchase	213,573	252,119
Borrowings	3,900,000	3,950,000
Junior subordinated debentures, at fair value	309,544	316,440
Junior and other subordinated debentures, at amortized cost	107,838	107,895
Derivatives	312,489	261,091
Carrying Value
Financial assets:
Cash and cash equivalents	2,201,117	2,162,534
Equity and other investment securities	77,203	76,995
Investment securities available for sale	8,616,545	8,829,870
Investment securities held to maturity	2,247	2,300
Loans held for sale	47,201	30,715
Loans and leases, net	37,228,069	37,001,080
Restricted equity securities	116,274	179,274
Residential mortgage servicing rights	110,444	109,243
Bank-owned life insurance	682,293	680,948
Derivatives	114,763	38,085
Financial liabilities:
Demand, money market, and savings deposits	35,366,323	35,379,451
Time Deposits	6,339,837	6,227,569
Securities sold under agreements to repurchase	213,573	252,119
Borrowings	3,900,000	3,950,000
Junior subordinated debentures, at fair value	309,544	316,440
Junior and other subordinated debentures, at amortized cost	107,838	107,895
Derivatives	312,489	261,091
Fair Value
Financial assets:
Cash and cash equivalents	2,201,117	2,162,534
Equity and other investment securities	77,203	76,995
Investment securities available for sale	8,616,545	8,829,870
Investment securities held to maturity	2,939	3,025
Loans held for sale	47,201	30,715
Loans and leases, net	35,740,658	35,810,989
Restricted equity securities	116,274	179,274
Residential mortgage servicing rights	110,444	109,243
Bank-owned life insurance	682,293	680,948
Derivatives	114,763	38,085
Financial liabilities:
Demand, money market, and savings deposits	35,366,323	35,379,451
Time Deposits	6,314,381	6,201,519
Securities sold under agreements to repurchase	213,573	252,119
Borrowings	3,893,589	3,950,037
Junior subordinated debentures, at fair value	309,544	316,440
Junior and other subordinated debentures, at amortized cost	98,867	97,695
Derivatives	$ 312,489	$ 261,091

Fair Value Measurement (Sched_2

Fair Value Measurement (Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	$ 77,203	$ 76,995
Investment securities available for sale	8,616,545	8,829,870
Loans held for sale	47,201	30,715
Loans Receivable, Fair Value Disclosure	267,806	275,140
Residential mortgage servicing rights, at fair value	110,444	109,243	$ 178,800	$ 185,017
Derivative Asset	114,763	38,085
Total assets measured at fair value	9,233,962	9,360,048
Junior subordinated debentures, at fair value	309,544	316,440
Derivative Liability	312,489	261,091
Total liabilities measured at fair value	622,033	577,531
Foreign currency derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	326	457
Derivative Liability	182	355
Investments in mutual funds and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	62,497	63,298
Equity securities held in rabbi trusts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	14,706	13,697
U.S. Treasury and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,467,393	1,478,392
Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,051,929	1,072,105
Mortgage-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	6,097,223	6,279,373
Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	16
Derivative Liability		137
Interest rate futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	3,745
Derivative Liability	1,134
Interest rate forward sales commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	74	9
Derivative Liability	188	535
Interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	114,347	33,874
Derivative Liability	310,985	260,064
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Loans Receivable, Fair Value Disclosure	0	0
Residential mortgage servicing rights, at fair value	0	0
Total assets measured at fair value	431,609	432,200
Junior subordinated debentures, at fair value	0	0
Total liabilities measured at fair value	0	0
Level 1 | Foreign currency derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	0	0
Level 1 | Investments in mutual funds and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	44,038	44,839
Level 1 | Equity securities held in rabbi trusts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	14,706	13,697
Level 1 | U.S. Treasury and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	372,865	373,664
Level 1 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Level 1 | Mortgage-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Level 1 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0
Derivative Liability		0
Level 1 | Interest rate futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0
Derivative Liability	0
Level 1 | Interest rate forward sales commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	0	0
Level 1 | Interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	47,201	30,715
Loans Receivable, Fair Value Disclosure	267,806	275,140
Residential mortgage servicing rights, at fair value	0	0
Total assets measured at fair value	8,691,893	8,818,605
Junior subordinated debentures, at fair value	0	0
Total liabilities measured at fair value	312,489	260,954
Level 2 | Foreign currency derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	326	457
Derivative Liability	182	355
Level 2 | Investments in mutual funds and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	18,459	18,459
Level 2 | Equity securities held in rabbi trusts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	0	0
Level 2 | U.S. Treasury and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,094,528	1,104,728
Level 2 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,051,929	1,072,105
Level 2 | Mortgage-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	6,097,223	6,279,373
Level 2 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0
Derivative Liability		0
Level 2 | Interest rate futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	3,745
Derivative Liability	1,134
Level 2 | Interest rate forward sales commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	74	9
Derivative Liability	188	535
Level 2 | Interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	114,347	33,874
Derivative Liability	310,985	260,064
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Loans Receivable, Fair Value Disclosure	0	0
Residential mortgage servicing rights, at fair value	110,444	109,243
Total assets measured at fair value	110,460	109,243
Junior subordinated debentures, at fair value	309,544	316,440
Total liabilities measured at fair value	309,544	316,577
Level 3 | Foreign currency derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	0	0
Level 3 | Investments in mutual funds and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	0	0
Level 3 | Equity securities held in rabbi trusts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity and other investment securities	0	0
Level 3 | U.S. Treasury and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Level 3 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Level 3 | Mortgage-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Level 3 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	16
Derivative Liability		137
Level 3 | Interest rate futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0
Derivative Liability	0
Level 3 | Interest rate forward sales commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	0	0
Level 3 | Interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liability	$ 0	$ 0

Fair Value Measurement (Narrati

Fair Value Measurement (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Loans and leases, at fair value	$ 267,806		$ 275,140
Unrealized gains arising during the period	6,453	$ 25,812
Changes in unrealized gains and losses on junior subordinated debentures carried at fair value, net of taxes	4,775	19,101
Residential Mortgage Banking Revenue
Fair Value, Option, Quantitative Disclosures [Line Items]
Net increase (decrease) in fair value	189	81
Other Income
Fair Value, Option, Quantitative Disclosures [Line Items]
Net increase (decrease) in fair value	$ (2,400)	$ 9,500

Fair Value Measurement (Sched_3

Fair Value Measurement (Schedule Of A Description Of The Valuation Technique, Unobservable Input, And Qualitative Information For The Company's Assets And Liabilities Classified As Level 3) (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, at fair value	$ 110,444	$ 109,243	$ 178,800	$ 185,017
Asset Derivatives	114,763	38,085
Junior subordinated debentures, at fair value	309,544	316,440
Residential mortgage servicing rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, at fair value	110,444
Interest rate lock commitments, net
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset Derivatives	16
Junior subordinated debentures
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Junior subordinated debentures, at fair value	309,544
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, at fair value	110,444	109,243
Junior subordinated debentures, at fair value	$ 309,544	$ 316,440
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Weighted Average | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.0674
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.1024
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Minimum | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.0607
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.0950
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Maximum | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.2752
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing asset, measurement input	0.1608
Level 3 | Discounted cash flow | Junior subordinated debentures | Weighted Average | Credit spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0379
Level 3 | Discounted cash flow | Junior subordinated debentures | Minimum | Credit spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0211
Level 3 | Discounted cash flow | Junior subordinated debentures | Maximum | Credit spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0613
Level 3 | Internal pricing model | Interest rate lock commitments, net | Weighted Average | Pull-through rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0.8571
Level 3 | Internal pricing model | Interest rate lock commitments, net | Minimum | Pull-through rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	0.6427
Level 3 | Internal pricing model | Interest rate lock commitments, net | Maximum | Pull-through rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Liability, Measurement Input	1

Fair Value Measurement (Sched_4

Fair Value Measurement (Schedule Of Reconciliation Of Assets And Liabilities Measured At Fair Value Using Significant Unobservable Inputs (Level 3) On A Recurring Basis) (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Junior subordinated debentures, at fair value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period	$ (7,583)	$ (6,679)
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period	6,453	25,812
Junior subordinated debentures, at fair value
Beginning Balance	(316,440)	(323,639)
Change included in earnings	(7,583)	(6,679)
Change in fair values included in comprehensive income/loss	6,453	25,812
Purchases and issuances	0	0
Sales and settlements	8,026	6,785
Ending Balance	(309,544)	(297,721)
Interest rate lock commitments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period	16	137
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period	0	0
Interest rate lock commitments, net
Beginning Balance	(137)	32
Change included in earnings	(16)	(32)
Change in fair values included in comprehensive income/loss	0	0
Purchases and issuances	47	338
Sales and settlements	122	(201)
Ending Balance	16	137
Residential mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in unrealized gains or losses for the period included in earnings for assets and liabilities held at end of period	3,117	(2,937)
Change in unrealized gains or losses for the period included in other comprehensive income for assets and liabilities held at end of period	0	0
Residential mortgage servicing rights
Beginning balance	109,243	185,017
Change included in earnings	(36)	(7,818)
Change in fair values included in comprehensive income/loss	0	0
Purchases and issuances	1,237	1,601
Sales and settlements	0	0
Ending balance	$ 110,444	$ 178,800

Fair Value Measurement (Fair Va

Fair Value Measurement (Fair Value Assets And Liabilities Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	$ 9,233,962	$ 9,360,048
Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	431,609	432,200
Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	8,691,893	8,818,605
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	110,460	109,243
Fair Value, Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	1,059	5,036
Fair Value, Nonrecurring | Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	0	0
Fair Value, Nonrecurring | Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	0	0
Fair Value, Nonrecurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	1,059	5,036
Fair Value, Nonrecurring | Loans and leases
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	1,059	5,036
Fair Value, Nonrecurring | Loans and leases | Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	0	0
Fair Value, Nonrecurring | Loans and leases | Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	0	0
Fair Value, Nonrecurring | Loans and leases | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Assets measured at fair value	$ 1,059	$ 5,036

Fair Value Measurement (Losses

Fair Value Measurement (Losses Resulting From Nonrecurring Fair Value Adjustments) (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses resulting from nonrecurring fair value adjustments	$ 28,174	$ 18,734
Loans and leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses resulting from nonrecurring fair value adjustments	$ 28,174	$ 18,734

Fair Value Measurement (Fair _2

Fair Value Measurement (Fair Value Option) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value	$ 47,201	$ 30,715
Aggregate Unpaid Principal Balance	45,926	29,629
Fair Value Less Aggregate Unpaid Principal Balance	1,275	1,086
Loans and leases, at fair value	267,806	275,140
Fair Value, Loans Held as Assets, Aggregate Unpaid Balance, Loans and Long-term Receivables	315,435	320,397
Fair Value, Option, Loans Held as Assets, Aggregate Difference	$ (47,629)	$ (45,257)

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Income Tax Contingency [Line Items]
Deferred Tax Assets, Net	$ 356,000
Income Tax Expense (Benefit)	$ 44,987	$ (4,886)
Effective Tax Rate as a Percentage of pre-tax Income (loss)	26.60%	25.80%
Amortization Method Qualified Affordable Housing Project Investments	$ 205,600		$ 210,900
Qualified Affordable Housing Project Investments, Commitment	104,900		$ 114,100
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 2,000