Fulton Financial (FULT) 10-Q 8 Aug 23 2023 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2023	Jul. 28, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	001-39680
Entity Registrant Name	FULTON FINANCIAL CORP
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-2195389
Entity Address, Address Line One	One Penn Square
Entity Address, Address Line Two	P. O. Box 4887
Entity Address, City or Town	Lancaster,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17604
City Area Code	717
Local Phone Number	291-2411
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		164,029,208
Entity Central Index Key	0000700564
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock, par value $2.50
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $2.50
Trading Symbol	FULT
Security Exchange Name	NASDAQ
Depositary Shares, Each Representing 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	FULTP
Security Exchange Name	NASDAQ

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 123,779	$ 126,898
Interest-bearing deposits with other banks	380,923	555,023
Cash and cash equivalents	504,702	681,921
FRB and FHLB stock	124,218	130,186
Loans held for sale	14,673	7,264
AFS, at estimated fair value	2,572,721	2,646,767
HTM, at amortized cost	1,294,613	1,321,256
Net loans	21,044,685	20,279,547
Less: ACL - loans	(287,442)	(269,366)
Loans, net	20,757,243	20,010,181
Net premises and equipment	216,322	225,141
Accrued interest receivable	96,991	91,579
Intangible Assets, Net (Including Goodwill)	561,885	560,824
Other assets	1,259,795	1,256,583
Total Assets	27,403,163	26,931,702
LIABILITIES
Noninterest-bearing	5,865,855	7,006,388
Interest-bearing	15,340,685	13,643,150
Total Deposits	21,206,540	20,649,538
Federal funds purchased	555,000	191,000
Federal Home Loan Bank advances	1,165,000	1,250,000
Senior debt and subordinated debt	539,994	539,634
Other Short-Term Borrowings	459,120	890,573
Total borrowings	2,719,114	2,871,207
Accrued interest payable	24,101	10,185
Other liabilities	811,256	821,015
Total Liabilities	24,761,011	24,351,945
SHAREHOLDERS' EQUITY
Preferred stock, no par value, 10.0 million shares authorized; Series A, 0.2 million shares authorized and issued as of June 30, 2023 and December 31, 2022, liquidation preference of $1,000 per share	192,878	192,878
Common stock, $2.50 par value, 600.0 million shares authorized, 225.7 million shares issued as of June 30, 2023 and 224.6 million issued as of December 31, 2022	564,137	561,511
Additional paid-in capital	1,545,706	1,541,840
Retained earnings	1,542,163	1,450,758
Accumulated other comprehensive (loss) income	(379,286)	(385,476)
Treasury stock, at cost, 59.6 million shares as of June 30, 2023 and 57.0 million shares as of December 31, 2022	(823,446)	(781,754)
Total Shareholders' Equity	2,642,152	2,579,757
Total Liabilities and Shareholders' Equity	$ 27,403,163	$ 26,931,702

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	200,000	200,000
Liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized (in shares)	600,000,000	600,000,000
Common stock, shares issued (in shares)	225,700,000	224,600,000
Treasury stock, shares (in shares)	59,600,000	57,000,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest Income
Loans, including fees	$ 284,690	$ 164,171	$ 545,341	$ 313,908
Investment securities	25,362	24,144	50,883	46,497
Other interest income	4,860	1,984	8,508	2,895
Total Interest Income	314,912	190,299	604,732	363,300
Interest Expense
Deposits	69,799	5,796	111,420	11,401
Federal funds purchased	9,112	12	15,147	12
Federal Home Loan Bank advances	11,826	0	27,299	0
Senior debt and subordinated debt	5,344	5,468	10,689	11,426
Other borrowings and interest-bearing liabilities	5,979	192	11,738	320
Total Interest Expense	102,060	11,468	176,293	23,159
Net Interest Income	212,852	178,831	428,439	340,141
Provision for credit losses	9,747	1,500	34,291	(5,450)
Interest Income (Expense), after Provision for Loan Loss, Total	203,105	177,331	394,148	345,591
Non-Interest Income
Non-interest income before investment securities gains	60,589	58,383	112,320	113,620
Net Securities Gain Loss	(4)	8	19	27
Total Non-Interest Income	60,585	58,391	112,339	113,647
Non-Interest Expense
Salaries and employee benefits	94,102	85,404	183,385	169,868
Data processing and software	16,776	14,685	32,571	29,000
Net occupancy	14,374	13,587	28,812	28,109
Other outside services	10,834	8,764	20,960	16,931
State taxes	3,939	3,568	7,418	6,605
Equipment	3,530	3,422	6,920	6,845
FDIC insurance	4,895	2,961	9,690	6,170
Professional fees	1,829	2,013	4,221	3,805
Marketing	1,655	1,326	3,541	2,646
Intangible amortization	1,072	177	1,746	353
Merger-related expenses	0	1,027	0	1,428
Other	15,012	12,796	28,372	23,948
Total Non-Interest Expense	168,018	149,730	327,636	295,708
Income Before Income Taxes	95,672	85,992	178,851	163,530
Income taxes	16,065	16,003	30,931	29,253
Net Income	79,607	69,989	147,920	134,277
Preferred stock dividends	(2,562)	(2,562)	(5,124)	(5,124)
Net Income Available to Common Shareholders	$ 77,045	$ 67,427	$ 142,796	$ 129,153
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.46	$ 0.42	$ 0.86	$ 0.80
Net Income (Diluted) (in dollars per share)	0.46	0.42	0.85	0.80
Cash Dividends (in dollars per share)	$ 0.16	$ 0.15	$ 0.31	$ 0.30
Commercial banking
Non-Interest Income
Non-interest income before investment securities gains	$ 23,145	$ 20,359	$ 40,658	$ 36,367
Consumer banking
Non-Interest Income
Non-interest income before investment securities gains	11,720	12,472	22,937	24,146
Wealth management
Non-Interest Income
Non-interest income before investment securities gains	18,678	18,274	36,740	37,702
Mortgage banking
Non-Interest Income
Non-interest income before investment securities gains	2,940	3,768	4,910	8,344
Other
Non-Interest Income
Non-interest income before investment securities gains	$ 4,106	$ 3,510	$ 7,075	$ 7,061

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 79,607	$ 69,989	$ 147,920	$ 134,277
Other Comprehensive Income/(Loss), net of tax:
Unrealized gains (losses) on securities	(31,219)	(88,352)	1,422	(242,211)
Reclassification adjustment for securities net change included in net income	(3)	6	14	21
Amortization of net unrealized gains (losses) on AFS securities transferred to HTM	1,501	(48,113)	2,979	(47,677)
Net unrealized gains (losses) on AFS investment securities	(29,721)	(136,459)	4,415	(289,867)
Net unrealized holding losses arising during the period	(5,586)	(8,586)	(12,406)	(39,962)
Reclassification adjustment for net change realized in net income	7,010	(335)	14,153	(1,842)
Net unrealized gains (losses) on interest rate derivatives used in cash flow hedges	1,424	(8,921)	1,747	(41,804)
Amortization of net unrecognized pension and postretirement items	3	25	28	50
Other Comprehensive Income (Loss)	(28,294)	(145,355)	6,190	(331,621)
Total Comprehensive Income (Loss)	$ 51,313	$ (75,366)	$ 154,110	$ (197,344)

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock, Common
Beginning Balance at Dec. 31, 2021	$ 2,712,680	$ 192,878	$ 559,766	$ 1,519,873	$ 1,282,383	$ 27,411	$ (869,631)
Beginning Balance (in shares) at Dec. 31, 2021		200	160,490
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	134,277				134,277
Other comprehensive income (loss)	(331,621)					(331,621)
Common stock issued	2,698		$ 1,415	1,508			(225)
Common stock issued (in shares)			567
Stock-based compensation awards	6,375			6,375
Preferred stock dividend	(5,124)				(5,124)
Common stock cash dividends	(48,192)				(48,192)
Ending Balance at Jun. 30, 2022	2,471,093	$ 192,878	$ 561,181	1,527,756	1,363,344	(304,210)	(869,856)
Ending Balance (in shares) at Jun. 30, 2022		200	161,057
Beginning Balance at Mar. 31, 2022	2,569,535	$ 192,878	$ 560,045	1,524,110	1,320,076	(158,855)	(868,719)
Beginning Balance (in shares) at Mar. 31, 2022		200	160,669
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	69,989				69,989
Other comprehensive income (loss)	(145,355)					(145,355)
Common stock issued	(95)		$ 1,136	(94)			(1,137)
Common stock issued (in shares)			388
Stock-based compensation awards	3,740			3,740
Preferred stock dividend	(2,562)				(2,562)
Common stock cash dividends	(24,159)				(24,159)
Ending Balance at Jun. 30, 2022	2,471,093	$ 192,878	$ 561,181	1,527,756	1,363,344	(304,210)	(869,856)
Ending Balance (in shares) at Jun. 30, 2022		200	161,057
Beginning Balance at Dec. 31, 2022	2,579,757	$ 192,878	$ 561,511	1,541,840	1,450,758	(385,476)	(781,754)
Beginning Balance (in shares) at Dec. 31, 2022		200	167,599
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	147,920				147,920
Other comprehensive income (loss)	6,190					6,190
Common stock issued	1,009		$ 2,626	(374)			(1,243)
Common stock issued (in shares)			910
Stock-based compensation awards	4,240			4,240
Acquisition of treasury stock (in shares)			(2,412)
Acquisition of treasury stock	(40,449)						(40,449)
Preferred stock dividend	(5,124)				(5,124)
Common stock cash dividends	(51,391)				(51,391)
Ending Balance at Jun. 30, 2023	2,642,152	$ 192,878	$ 564,137	1,545,706	1,542,163	(379,286)	(823,446)
Ending Balance (in shares) at Jun. 30, 2023		200	166,097
Beginning Balance at Mar. 31, 2023	2,618,998	$ 192,878	$ 561,853	1,544,758	1,491,701	(350,992)	(821,200)
Beginning Balance (in shares) at Mar. 31, 2023		200	165,396
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	79,607				79,607
Other comprehensive income (loss)	(28,294)					(28,294)
Common stock issued	(1,585)		$ 2,284	(1,623)			(2,246)
Common stock issued (in shares)			701
Stock-based compensation awards	2,571			2,571
Preferred stock dividend	(2,562)				(2,562)
Common stock cash dividends	(26,583)				(26,583)
Ending Balance at Jun. 30, 2023	$ 2,642,152	$ 192,878	$ 564,137	$ 1,545,706	$ 1,542,163	$ (379,286)	$ (823,446)
Ending Balance (in shares) at Jun. 30, 2023		200	166,097

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends per share	$ 0.16	$ 0.15	$ 0.31	$ 0.30

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 147,920	$ 134,277
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	34,291	(5,450)
Depreciation and amortization of premises and equipment	14,675	14,963
Net amortization of investment securities premiums	5,829	7,027
Investment securities gains, net	(19)	(27)
Gain on sales of mortgage loans held for sale	(2,277)	(5,568)
Proceeds from sales of mortgage loans held for sale	132,609	297,511
Originations of mortgage loans held for sale	(137,741)	(273,704)
Intangible amortization	1,746	353
Amortization of issuance costs and discounts on long-term borrowings	360	379
Stock-based compensation	4,240	6,375
Net change in deferred federal income tax	19,232	(96,703)
Net change in accrued salaries and benefits	(12,163)	1,274
Net change in life insurance cash surrender value	(20,433)	(28,742)
Other changes, net	28,641	(67,652)
Total adjustments	68,990	(149,964)
Net cash provided by (used in) operating activities	216,910	(15,687)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of AFS securities	80,666	109,252
Proceeds from principal repayments and maturities of AFS securities	55,102	316,037
Proceeds from principal repayments and maturities of HTM securities	29,815	67,230
Purchase of AFS securities	(64,996)	(501,642)
Purchase of HTM securities	0	(9,541)
Net change in FRB and FHLB stock	5,968	(4,511)
Net change of federal funds sold	0	(30,500)
Net change in loans	(781,310)	(590,797)
Net purchases of premises and equipment	(11,019)	(6,245)
Proceeds from Life Insurance Policy	45	0
Net change in tax credit investments	(18,436)	(18,735)
Net cash used in investing activities	(704,165)	(669,452)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in demand and savings deposits	(796,291)	(253,864)
Net change in time deposits and broker deposits	1,353,293	(175,769)
Net change in other borrowings	(152,453)	39,967
Repayments of senior debt and subordinated debt	0	(65,140)
Net proceeds from issuance of common stock	1,009	2,698
Dividends paid	(55,073)	(51,693)
Acquisition of treasury stock	(40,449)	0
Net cash provided by (used in) financing activities	310,036	(503,801)
Net decrease in Cash and Cash Equivalents	(177,219)	(1,188,940)
Cash and Cash Equivalents at Beginning of Period	681,921	1,638,614
Cash and Cash Equivalents at End of Period	504,702	449,674
Cash paid during the period for:
Interest	162,377	24,149
Income taxes	15,183	15,692
Supplemental Schedule of Certain Noncash Activities:
Transfer of AFS securities to HTM securities	$ 0	$ 479,008

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited Consolidated Financial Statements of the Corporation have been prepared in conformity with GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities as of the date of the financial statements as well as revenues and expenses during the period. Actual results could differ from those estimates. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the notes thereto included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2022. Operating results for the three and six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. The Corporation evaluates subsequent events through the date of filing of this Form 10-Q with the SEC. Significant Accounting Policies: The significant accounting policies used in preparation of the Consolidated Financial Statements are disclosed in the Corporation's 2022 Annual Report on Form 10-K. Those significant accounting policies are unchanged at June 30, 2023 except for the following: Effective January 1, 2023, the Corporation adopted ASU 2022-02 Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"), which updated the guidance on modifications to financing receivables by effectively replacing the concept of troubled debt restructurings with a new concept, loan modifications to borrowers experiencing financial difficulty. See Note 5 for further detail. Below is a summary of the policy surrounding loan modifications to borrowers experiencing financial difficulty. A loan modified for a borrower experiencing financial difficulty includes one or more of the following concessions: a reduction of the stated interest rate of the loan, an extension of the term or amortization period of the loan, a more than insignificant payment delay or principal forgiveness of the loan. Because the effect of most modifications made to borrowers experiencing financial difficulty is already included in the ACL, a change to the ACL is generally not recorded upon modification. When principal forgiveness is provided, the amortized cost basis of the forgiven portion of the loan is written off against the ACL. The amount of the principal forgiveness is deemed to be uncollectible; therefore, that portion of the loan is written off, resulting in a reduction of the amortized cost basis of the loan and a corresponding adjustment to the ACL. Recently Adopted Accounting Standards In March 2022, FASB issued ASU 2022-01 Derivatives and Hedging (Topic 815): Fair Value Hedging – Portfolio Layer Method ("ASU 2022-01") . This update addresses questions regarding the last-of-layer method arising from the issuance of ASU 2017-12 and permits more flexibility in hedging interest rate risk for both variable-rate and fixed-rate financial instruments and introduces the ability to hedge risk components for non-financial hedges. The Corporation adopted ASU 2022-01 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In March 2022, FASB issued ASU 2022-02. This update reduces the complexity of accounting for TDRs by eliminating certain accounting guidance, enhancing disclosures and improving the consistency of vintage disclosures. The Corporation adopted ASU 2022-02 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In September 2022, FASB issued ASU 2022-04 Liabilities - Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations ("ASU 2022-04"). This update enhances transparency in the disclosure of supplier finance programs, which previously had no explicit requirements under GAAP. The Corporation adopted ASU 2022-04 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In December 2022, FASB issued ASU 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. This update extends the sunset provision date of ASU 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04") to December 31, 2024 . The Corporation will adopt ASU 2020-04 on January 1, 2025. The Corporation does not expect the adoption of ASU 2020-04 to have a material impact on its consolidated financial statements. In March 2023, FASB issued ASU 2023-02 Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method ("ASU 2023-02") . This update allows any tax credit program that meets certain criteria to use the proportional amortization method. The Corporation early adopted ASU 2023-02 using the modified retrospective method effective upon issuance, and it did not have a material impact on its consolidated financial statements. Recently Issued Accounting Standards In June 2022, FASB issued ASU 2022-03 Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions ("ASU 2022-03"). This update clarifies how the fair value of equity securities subject to contractual sale restrictions is determined and requires additional qualitative and quantitative disclosures for equity securities with contractual sale restrictions. The Corporation will adopt ASU 2022-03 on January 1, 2024. The Corporation does not expect the adoption of ASU 2022-03 to have a material impact on its consolidated financial statements. In March 2023, FASB issued ASU 2023-01 Leases (Topic 842): Common Control Arrangements ("ASU 2023-01"). This update clarifies guidance for leases between related parties under common control . The Corporation will adopt ASU 2023-01 on January 1, 2024. The Corporation does not expect the adoption of ASU 2023-01 to have a material impact on its consolidated financial statements. Reclassifications Certain amounts in the 2022 consolidated financial statements and notes have been reclassified to conform to the 2023 presentation.

Business Combinations

Business Combinations	6 Months Ended
	Jun. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations On July 1, 2022, the Corporation completed its acquisition of Prudential Bancorp, a Pennsylvania chartered bank holding company headquartered in Philadelphia, Pennsylvania that primarily served the Greater Philadelphia region. On that date, the Corporation acquired 100% of the outstanding common stock of Prudential Bancorp, Prudential Bancorp was merged with and into the Corporation, and Prudential Bancorp's wholly owned subsidiary, Prudential Bank, became a wholly owned subsidiary of the Corporation. The Corporation merged Prudential Bank with and into Fulton Bank in the fourth quarter of 2022. Results of the operations of the acquired entity were included in the Corporation's consolidated financial statements beginning on July 1, 2022. As a result of the Merger, the Corporation enhanced its presence in Philadelphia, Pennsylvania, expanded its customer base and leveraged operating costs through economies of scale. In accordance with the terms of the definitive merger agreement, each share of Prudential Bancorp's common stock issued and outstanding immediately prior to the effective time of the Merger was converted into the right to receive the Merger Consideration. In the aggregate, approximately eighty percent (80%) of the Merger Consideration consisted of the Corporation's common stock with the remaining approximately twenty percent (20%) paid in cash. The receipt of the Corporation’s common stock in the Merger qualified as a tax-free exchange for Prudential Bancorp shareholders. The acquisition of Prudential Bancorp was accounted for as a business combination using the acquisition method of accounting, and accordingly, the assets acquired, the liabilities assumed, and consideration transferred were recorded at their estimated fair values as of the Merger. The $19.1 million excess of the Merger Consideration over the fair value of assets acquired was recorded as goodwill and is not amortizable or deductible for tax purposes. The following table summarizes the consideration transferred and the fair values of identifiable assets acquired and liabilities assumed on July 1, 2022: Fair Value (dollars in thousands, except share data) Consideration transferred: Common stock shares issued (6,208,516) $ 89,713 Cash paid to Prudential Bancorp shareholders 29,343 Value of consideration 119,056 Assets acquired: Cash and due from banks 7,533 Investment securities 287,126 Loans 554,091 Premises and equipment 8,574 Other assets 73,303 Total assets 930,627 Liabilities assumed: Deposits 532,170 Borrowings (1) 284,000 Other liabilities 14,482 Total liabilities 830,652 Net assets acquired: 99,975 Goodwill resulting from the Merger $ 19,081 (1) Included a $30.5 million intercompany borrowing between Prudential Bank and Fulton Bank. While the valuation of the acquired assets and liabilities is completed, fair value estimates related to the assets and liabilities from Prudential Bancorp are subject to adjustment for up to one year after the closing date of the Merger as additional information becomes available. Included in the above table are adjustments of $(0.5) million and $2.8 million that occurred during the three months and six months ended June 30, 2023, respectively, resulting in a change to goodwill resulting from the Merger. The amount of goodwill recorded reflects the increased market share and related synergies that are expected to result from the acquisition and represents the excess purchase price over the estimated fair value of the net assets acquired from Prudential Bancorp. The following table presents information with respect to the fair value and unpaid principal balance of acquired loans and leases at the date of the Merger: July 1, 2022 Unpaid Principal Balance Fair Value (dollars in thousands) Real estate - commercial mortgage $ 224,904 $ 216,593 Commercial and industrial 63,560 61,873 Real-estate - residential mortgage 177,327 169,098 Real-estate - home equity 6,034 5,812 Real-estate - construction 98,963 98,546 Consumer 2,306 2,286 Total acquired loans $ 573,094 $ 554,208 The following table presents the carrying amount of loans for which, at the date of Merger, there was evidence of more than insignificant deterioration of credit quality since origination: July 1, 2022 (dollars in thousands) Book balance of loans with deteriorated credit quality at acquisition $ 27,057 Allowance for credit losses at acquisition (1,135) Non-credit related discount (130) Total purchased credit deteriorated loans $ 25,792 The following table presents the change in goodwill during the six months ended June 30, 2023: June 30 2023 (dollars in thousands) Goodwill at December 31, 2022 $ 550,539 Adjustments to goodwill from the Merger 2,807 Goodwill at June 30, 2023 $ 553,346 Pro Forma Income Statement (unaudited) The table below presents the pro forma results of the operations of the combined institutions as if the Merger occurred on January 1, 2022. The pro forma income statement adjustments are limited to the effects of fair value mark amortization and accretion and intangible asset amortization and do not consider future cost savings the Corporation expects to achieve subsequent to the merger of Prudential Bank with and into the Bank. Six months ended June 30 2023 2022 (dollars in thousands) Net interest income $ 428,439 $ 357,410 Provision for credit losses 34,291 (225) Net Interest Income After Provision for Credit Losses 394,148 357,635 Total noninterest income 112,339 118,571 Total noninterest expenses 327,636 324,182 Income Before Income Taxes 178,851 152,024 Income tax expense 30,931 26,468 Net Income $ 147,920 $ 125,556

Restrictions on Cash and Cash E

Restrictions on Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2023
Cash and Cash Equivalents [Abstract]
Restrictions on Cash and Cash Equivalents	Restrictions on Cash and Cash EquivalentsCash collateral is posted by the Corporation with counterparties to secure derivatives and other contracts, which is included in "interest-bearing deposits with other banks" on the consolidated balance sheets. The amounts of such collateral as of June 30, 2023 and December 31, 2022 were $11.5 million and $13.9 million, respectively.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following table presents the amortized cost and estimated fair values of investment securities for the periods presented: June 30, 2023 Amortized Gross Gross Estimated Available for Sale (dollars in thousands) U.S. Government securities $ 225,542 $ — $ (4,904) $ 220,638 U.S. Government-sponsored agency securities 1,044 — (45) 999 State and municipal securities 1,206,102 252 (152,446) 1,053,908 Corporate debt securities 474,953 — (50,574) 424,379 Collateralized mortgage obligations 134,234 — (13,776) 120,458 Residential mortgage-backed securities 233,807 4 (28,923) 204,888 Commercial mortgage-backed securities 640,928 — (93,477) 547,451 Total $ 2,916,610 $ 256 $ (344,145) $ 2,572,721 Held to Maturity Residential mortgage-backed securities $ 431,704 $ — $ (56,114) $ 375,590 Commercial mortgage-backed securities 862,909 — (151,807) 711,102 Total $ 1,294,613 $ — $ (207,921) $ 1,086,692 December 31, 2022 Amortized Gross Gross Estimated Available for Sale (dollars in thousands) U.S. Government securities $ 226,140 $ — $ (7,655) $ 218,485 U.S. Government sponsored agency securities 1,050 — (42) 1,008 State and municipal securities 1,284,245 283 (178,816) 1,105,712 Corporate debt securities 459,792 — (37,483) 422,309 Collateralized mortgage obligations 147,155 — (13,122) 134,033 Residential mortgage-backed securities 242,527 18 (29,847) 212,698 Commercial mortgage-backed securities 631,604 — (79,082) 552,522 Total $ 2,992,513 $ 301 $ (346,047) $ 2,646,767 Held to Maturity Residential mortgage-backed securities $ 457,325 $ — $ (57,480) $ 399,845 Commercial mortgage-backed securities 863,931 — (138,727) 725,204 Total $ 1,321,256 $ — $ (196,207) $ 1,125,049 On May 1, 2022, the Corporation transferred certain residential mortgage-backed securities and commercial mortgage-backed securities from AFS to HTM classification as permitted by ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments . The estimated fair value of the securities transferred was $415.2 million, and the amortized cost of the securities was $479.0 million. Securities carried at $1.1 billion at June 30, 2023 and December 31, 2022 were pledged as collateral to secure public and trust deposits. The amortized cost and estimated fair values of debt securities as of June 30, 2023, by contractual maturity, are shown in the following table. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay with or without call or prepayment penalties. June 30, 2023 Available for Sale Held to Maturity Amortized Estimated Amortized Estimated (dollars in thousands) Due in one year or less $ 234,224 $ 229,237 $ — $ — Due from one year to five years 90,789 87,328 — — Due from five years to ten years 545,358 494,049 — — Due after ten years 1,037,270 889,310 — — 1,907,641 1,699,924 — — Residential mortgage-backed securities (1) 233,807 204,888 431,704 375,590 Commercial mortgage-backed securities (1) 640,928 547,451 862,909 711,102 Collateralized mortgage obligations (1) 134,234 120,458 — — Total $ 2,916,610 $ 2,572,721 $ 1,294,613 $ 1,086,692 (1) Maturities for mortgage-backed securities and collateralized mortgage obligations are dependent upon the interest rate environment and prepayments on the underlying loans. The following table presents information related to gross realized gains and losses on the sales of securities for the periods presented: Gross Realized Gains Gross Realized Losses Net Gains (Losses) Three months ended (dollars in thousands) June 30, 2023 $ — $ (4) $ (4) June 30, 2022 8 — 8 Six months ended June 30, 2023 $ 283 $ (264) $ 19 June 30, 2022 1,554 (1,527) 27 The following tables present the gross unrealized losses and estimated fair values of investment securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position for the periods presented: June 30, 2023 Less than 12 months 12 months or longer Total Number of Securities Estimated Unrealized Number of Securities Estimated Unrealized Estimated Unrealized Available for Sale (dollars in thousands) U.S. Government securities — $ — $ — 3 $ 220,638 $ (4,904) $ 220,638 $ (4,904) U.S. Government-sponsored agency securities 1 999 (45) — — — 999 (45) State and municipal securities 72 156,269 (3,092) 302 869,492 (149,354) 1,025,761 (152,446) Corporate debt securities 29 132,631 (11,734) 42 288,993 (38,840) 421,624 (50,574) Collateralized mortgage obligations 27 19,500 (1,543) 67 100,958 (12,233) 120,458 (13,776) Residential mortgage-backed securities 66 57,495 (3,864) 29 146,358 (25,059) 203,853 (28,923) Commercial mortgage-backed securities 61 86,631 (4,343) 75 460,820 (89,134) 547,451 (93,477) Total available for sale 256 $ 453,525 $ (24,621) 518 $ 2,087,259 $ (319,524) $ 2,540,784 $ (344,145) Held to Maturity Residential mortgage-backed securities 99 $ 221,910 $ (14,592) 21 $ 153,680 $ (41,522) $ 375,590 $ (56,114) Commercial mortgage-backed securities 18 237,317 (22,707) 42 473,785 (129,100) 711,102 (151,807) Total held to maturity 117 $ 459,227 $ (37,299) 63 $ 627,465 $ (170,622) $ 1,086,692 $ (207,921) December 31, 2022 Less than 12 months 12 months or longer Total Number of Securities Estimated Unrealized Number of Securities Estimated Unrealized Estimated Unrealized Available for Sale (dollars in thousands) U.S. Government Securities 1 $ 96,906 $ (2,814) 2 $ 121,579 $ (4,841) $ 218,485 $ (7,655) U.S. Government sponsored agency securities 1 1,008 (42) — — — 1,008 (42) State and municipal securities 360 995,122 (157,397) 29 61,089 (21,419) 1,056,211 (178,816) Corporate debt securities 66 376,398 (31,333) 6 37,157 (6,150) 413,555 (37,483) Collateralized mortgage obligations 96 113,191 (7,650) 1 20,842 (5,472) 134,033 (13,122) Residential mortgage-backed securities 81 154,861 (18,301) 5 55,293 (11,546) 210,154 (29,847) Commercial mortgage-backed securities 114 371,109 (38,845) 20 181,413 (40,237) 552,522 (79,082) Total available for sale 719 $ 2,108,595 $ (256,382) 63 $ 477,373 $ (89,665) $ 2,585,968 $ (346,047) Held to Maturity Residential mortgage-backed securities 106 $ 246,667 $ (14,275) 14 $ 153,178 $ (43,205) $ 399,845 $ (57,480) Commercial mortgage-backed securities 21 258,255 (24,029) 39 466,949 (114,698) 725,204 (138,727) Total held to maturity 127 $ 504,922 $ (38,304) 53 $ 620,127 $ (157,903) $ 1,125,049 $ (196,207) The Corporation's collateralized mortgage obligations and mortgage-backed securities have contractual terms that generally do not permit the issuer to settle the securities at a price less than the amortized cost of the investment. The change in fair value of these securities is attributable to changes in interest rates and not credit quality. The Corporation does not have the intent to sell and does not believe it will more likely than not be required to sell any of these securities prior to a recovery of their fair value to amortized cost. Therefore, the Corporation does not have an ACL for these investments as of June 30, 2023 and December 31, 2022. As of June 30, 2023 and December 31, 2022, no ACL was required for the Corporation's state and municipal securities. The Corporation does not have the intent to sell and does not believe it will more likely than not be required to sell any of t hese securities prior to a recovery of their fair value to amortized cost, which may be at maturity.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Loans and Allowance for Credit Losses	Loans and Allowance for Credit Losses Loans and leases, net of unearned income Loans and leases, net of unearned income, are summarized as follows: June 30, December 31, 2022 (dollars in thousands) Real estate - commercial mortgage $ 7,846,861 $ 7,693,835 Commercial and industrial 4,602,446 4,477,537 Real-estate - residential mortgage 5,147,262 4,737,279 Real-estate - home equity 1,061,891 1,102,838 Real-estate - construction 1,308,564 1,269,925 Consumer 763,530 699,179 Leases and other loans 346,015 328,331 Gross loans 21,076,569 20,308,924 Unearned income (31,884) (29,377) Net loans $ 21,044,685 $ 20,279,547 The Corporation segments its loan portfolio by "portfolio segments," as presented in the table above. Certain portfolio segments are further disaggregated by "class segment" for the purpose of estimating credit losses. Allowance for Credit Losses The ACL consists of loans evaluated collectively and individually for expected credit losses. The ACL represents an estimate of expected credit losses over the expected life of the loans as of the balance sheet date and is recorded as a reduction to net loans. The ACL is increased by charges to expense, through the provision for credit losses, and decreased by charge-offs, net of recoveries. The reserve for OBS credit exposures includes estimated losses on unfunded loan commitments, letters of credit and other OBS credit exposures. The following table summarizes the ACL - loans balance and the reserve for OBS credit exposures balance as of June 30, 2023 and December 31, 2022: June 30, December 31, (dollars in thousands) ACL - loans $ 287,442 $ 269,366 Reserve for OBS credit exposures (1) $ 16,568 $ 16,328 (1) Included in other liabilities on the consolidated balance sheets. The following table presents the activity in the ACL - loans balances: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Balance at beginning of period $ 278,695 $ 243,705 $ 269,366 $ 249,001 Loans charged off (4,787) (1,618) (21,690) (3,518) Recoveries of loans previously charged off 2,816 5,367 5,715 8,321 Net loans (charged off) recovered (1,971) 3,749 (15,975) 4,803 Provision for credit losses (1) 10,718 1,110 34,051 (5,240) Balance at end of period $ 287,442 $ 248,564 $ 287,442 $ 248,564 Provision for OBS credit exposures $ (971) $ 390 $ 240 $ (210) Reserve for OBS credit exposures $ 16,568 $ 14,323 $ 16,568 $ 14,323 (1) Provision included in the table only includes the portion related to net loans. The following table presents the activity in the ACL by portfolio segment: Real Estate Commercial and Real Estate Residential Consumer and Home Real Estate Leases and other loans Total (dollars in thousands) Three months ended June 30, 2023 Balance at March 31, 2023 $ 66,256 $ 77,126 $ 86,209 $ 27,303 $ 11,646 $ 10,155 $ 278,695 Loans charged off (230) (2,017) (62) (1,313) — (1,165) (4,787) Recoveries of loans previously charged off 29 988 58 959 569 213 2,816 Net loans (charged off) recovered (201) (1,029) (4) (354) 569 (952) (1,971) Provision for loan losses (1) 6,247 (908) 2,644 2,033 (1,071) 1,773 10,718 Balance at June 30, 2023 $ 72,302 $ 75,189 $ 88,849 $ 28,982 $ 11,144 $ 10,976 $ 287,442 Three months ended June 30, 2022 Balance at March 31, 2022 $ 79,853 $ 66,511 $ 55,892 $ 20,213 $ 13,303 $ 7,933 $ 243,705 Loans charged off — (201) (66) (877) — (474) (1,618) Recoveries of loans previously charged off 3,536 739 92 762 12 226 5,367 Net loans (charged off) recovered 3,536 538 26 (115) 12 (248) 3,749 Provision for loan and lease losses (1) (10,784) 5,070 5,717 2,982 (2,687) 812 1,110 Balance at June 30, 2022 $ 72,605 $ 72,119 $ 61,635 $ 23,080 $ 10,628 $ 8,497 $ 248,564 Six months ended June 30, 2023 Balance at December 31, 2022 $ 69,456 $ 70,116 $ 83,250 $ 26,429 $ 10,743 $ 9,372 $ 269,366 Loans charged off (13,592) (2,629) (62) (3,519) — (1,888) (21,690) Recoveries of loans previously charged off 815 2,074 106 1,620 771 329 5,715 Net loans (charged off) recovered (12,777) (555) 44 (1,899) 771 (1,559) (15,975) Provision for loan losses (1) 15,623 5,628 5,555 4,452 (370) 3,163 34,051 Balance at June 30, 2023 $ 72,302 $ 75,189 $ 88,849 $ 28,982 $ 11,144 $ 10,976 $ 287,442 Six months ended June 30, 2022 Balance at December 31, 2021 $ 87,970 $ 67,056 $ 54,236 $ 19,749 $ 12,941 $ 7,049 $ 249,001 Loans charged off (152) (428) (66) (1,929) — (943) (3,518) Recoveries of loans previously charged off 3,648 2,719 314 1,216 44 380 8,321 Net loans (charged off) recovered 3,496 2,291 248 (713) 44 (563) 4,803 Provision for loan losses (1) (18,861) 2,772 7,151 4,044 (2,357) 2,011 (5,240) Balance at June 30, 2022 $ 72,605 $ 72,119 $ 61,635 $ 23,080 $ 10,628 $ 8,497 $ 248,564 (1) Provision included in the table only includes the portion related to net loans. The ACL - loans includes qualitative adjustments, as appropriate, intended to capture the impact of uncertainties not reflected in the quantitative models. Qualitative adjustments include and consider changes in national, regional and local economic and business conditions, an assessment of the lending environment, including underwriting standards and other factors affecting credit quality. The provision for credit losses for the second quarter of 2023 was recorded to increase the ACL as a result of loan growth and changes to the macroeconomic outlook. Non-accrual Loans All loans individually evaluated for impairment are measured for losses on a quarterly basis. As of June 30, 2023 and December 31, 2022, substantially all of the Corporation's individually evaluated loans with total commitments greater than or equal to $1.0 million were measured based on the estimated fair value of each loan’s collateral, if any. Collateral could be in the form of real estate, in the case of commercial mortgages and construction loans, or business assets, such as accounts receivables or inventory, in the case of commercial and industrial loans. Commercial and industrial loans may also be secured by real estate. As of June 30, 2023 and December 31, 2022, approximately 91% of loans evaluated individually for impairment with principal balances greater than or equal to $1.0 million, whose primary collateral consisted of real estate, were measured at estimated fair value using appraisals performed by state certified third-party appraisers that had been updated in the preceding 12 months. The following table presents total non-accrual loans, by class segment: June 30, 2023 December 31, 2022 With a Related Allowance Without a Related Allowance Total With a Related Allowance Without a Related Allowance Total (dollars in thousands) Real estate - commercial mortgage $ 19,727 $ 34,088 $ 53,815 $ 39,722 $ 30,439 $ 70,161 Commercial and industrial 17,420 12,068 29,488 14,804 12,312 27,116 Real estate - residential mortgage 19,675 2,025 21,700 25,315 979 26,294 Real estate - home equity 5,711 116 5,827 5,975 130 6,105 Real estate - construction 707 392 1,099 866 502 1,368 Consumer 17 — 17 92 — 92 Leases and other loans 9,264 2,070 11,334 4,052 9,255 13,307 $ 72,521 $ 50,759 $ 123,280 $ 90,826 $ 53,617 $ 144,443 As of June 30, 2023 and December 31, 2022, there were $50.8 million and $53.6 million, respectively, of non-accrual loans that did not have a specific valuation allowance for credit losses. The estimated fair values of the collateral securing these loans exceeded their carrying amount, or the loans were previously charged down to realizable collateral values. Accordingly, no specific valuation allowance was considered to be necessary. Asset Quality Maintaining an appropriate ACL is dependent on various factors, including the ability to identify potential problem loans in a timely manner. For commercial construction, commercial and industrial, and commercial real estate, an internal risk rating process is used. The Corporation believes that internal risk ratings are the most relevant credit quality indicator for these types of loans. The migration of loans through the various internal risk categories is a significant component of the ACL methodology for these loans, which bases the probability of default on this migration. Assigning risk ratings involves judgment. The Corporation's loan review officers provide a separate assessment of risk rating accuracy. Risk ratings may be changed based on the ongoing monitoring procedures performed by loan officers or credit administration staff, or if specific loan review assessments identify a deterioration or an improvement in a loan. The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the current period: June 30, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (in thousands) Amortized Amortized 2023 2022 2021 2020 2019 Prior Cost Basis Cost Basis Total Real estate - commercial mortgage Pass $ 436,213 $ 1,014,277 $ 1,079,313 $ 931,445 $ 761,840 $ 3,044,060 $ 98,737 $ 3,912 $ 7,369,797 Special Mention — 17,541 70,283 17,725 38,372 149,434 1,012 — 294,367 Substandard or Lower 202 4,889 25,184 45,196 25,257 81,489 480 — 182,697 Total real estate - commercial mortgage 436,415 1,036,707 1,174,780 994,366 825,469 3,274,983 100,229 3,912 7,846,861 Real estate - commercial mortgage Current period gross charge-offs — — — — — (30) — (13,562) (13,592) Commercial and industrial (1) Pass 461,413 652,086 425,486 365,676 292,754 706,510 1,432,210 9,051 4,345,186 Special Mention 392 16,804 11,786 5,392 3,522 16,458 60,230 748 115,332 Substandard or Lower 205 3,221 1,780 3,063 19,248 29,342 84,059 1,010 141,928 Total commercial and industrial 462,010 672,111 439,052 374,131 315,524 752,310 1,576,499 10,809 4,602,446 Commercial and industrial (1) Current period gross charge-offs — — — — — — (502) (2,127) (2,629) Real estate - construction (2) Pass 103,193 218,294 432,924 127,131 18,815 88,431 17,480 — 1,006,268 Special Mention — 26 262 28,037 — 11,263 — — 39,588 Substandard or Lower — 473 — — 2,202 23,259 2,408 — 28,342 Total real estate - construction 103,193 218,793 433,186 155,168 21,017 122,953 19,888 — 1,074,198 Real estate - construction (2) Current period gross charge-offs — — — — — — — — — Total Pass $ 1,000,819 $ 1,884,657 $ 1,937,723 $ 1,424,252 $ 1,073,409 $ 3,839,001 $ 1,548,427 $ 12,963 $ 12,721,251 Special Mention 392 34,371 82,331 51,154 41,894 177,155 61,242 748 449,287 Substandard or Lower 407 8,583 26,964 48,259 46,707 134,090 86,947 1,010 352,967 Total $ 1,001,618 $ 1,927,611 $ 2,047,018 $ 1,523,665 $ 1,162,010 $ 4,150,246 $ 1,696,616 $ 14,721 $ 13,523,505 (1) Loans originated in 2021 and 2020 include $9.8 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government guaranty through the SBA. (2) Excludes real estate - construction - other. The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the prior period: December 31, 2022 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2022 2021 2020 2019 2018 Prior Cost Basis Cost Basis Total Real estate - commercial mortgage Pass $ 1,014,575 $ 1,095,725 $ 969,118 $ 810,850 $ 621,689 $ 2,610,511 $ 80,665 $ 307 $ 7,203,440 Special Mention 95 50,367 23,296 33,735 16,205 181,736 947 — 306,381 Substandard or Lower 1,032 3,039 31,042 38,378 23,112 87,168 243 — 184,014 Total real estate - commercial mortgage 1,015,702 1,149,131 1,023,456 882,963 661,006 2,879,415 81,855 307 7,693,835 Real estate - commercial mortgage Current period gross charge-offs — — — — — (53) — (12,420) (12,473) Commercial and industrial (1) Pass 907,390 449,145 397,881 315,605 185,096 604,352 1,387,961 618 4,248,048 Special Mention 11,405 24,479 3,763 8,147 5,218 24,633 56,048 250 133,943 Substandard or Lower 834 418 4,818 13,044 3,081 22,025 51,077 249 95,546 Total commercial and industrial 919,629 474,042 406,462 336,796 193,395 651,010 1,495,086 1,117 4,477,537 Commercial and industrial (1) Current period gross charge-offs — — (36) — (21) (365) (1,192) (776) (2,390) Real estate - construction (2) Pass 159,195 390,993 243,406 28,539 24,421 93,511 47,271 — 987,336 Special Mention — — — — — 21,603 — — 21,603 Substandard or Lower — — 3,852 2,274 — 4,272 203 — 10,601 Total real estate - construction 159,195 390,993 247,258 30,813 24,421 119,386 47,474 — 1,019,540 Real estate - construction (2) Current period gross charge-offs — — — — — — — — — Total Pass $ 2,081,160 $ 1,935,863 $ 1,610,405 $ 1,154,994 $ 831,206 $ 3,308,374 $ 1,515,897 $ 925 $ 12,438,824 Special Mention 11,500 74,846 27,059 41,882 21,423 227,972 56,995 250 461,927 Substandard or Lower 1,866 3,457 39,712 53,696 26,193 113,465 51,523 249 290,161 Total $ 2,094,526 $ 2,014,166 $ 1,677,176 $ 1,250,572 $ 878,822 $ 3,649,811 $ 1,624,415 $ 1,424 $ 13,190,912 (1) Loans originated in 2021 and 2020 include $20.4 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government guaranty through the SBA. (2) Excludes real estate - construction - other. The Corporation considers the performance of the loan portfolio and its impact on the ACL. The Corporation does not assign internal risk ratings to smaller balance, homogeneous loans, such as home equity, residential mortgage, construction loans to individuals secured by residential real estate, consumer and leases and other loans. For these loans, the most relevant credit quality indicator is delinquency status and the Corporation evaluates credit quality based on the aging status of the loan. The following tables present the amortized cost of these loans based on payment activity, by origination year, for the periods shown: June 30, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2023 2022 2021 2020 2019 Prior Cost Basis Cost Basis Total Real estate - residential mortgage Performing $ 413,908 $ 1,030,693 $ 1,715,214 $ 1,020,426 $ 276,538 $ 651,744 $ — $ — $ 5,108,523 Nonperforming — 658 4,680 4,650 5,239 23,512 — — 38,739 Total real estate - residential mortgage 413,908 1,031,351 1,719,894 1,025,076 281,777 675,256 — — 5,147,262 Real estate - residential mortgage Current period gross charge-offs — — — — — — — (62) (62) Consumer and real estate - home equity Performing 169,479 309,613 94,775 66,026 49,842 284,430 814,043 26,745 1,814,953 Nonperforming 60 403 516 418 66 5,301 1,393 2,311 10,468 Total consumer and real estate - home equity 169,539 310,016 95,291 66,444 49,908 289,731 815,436 29,056 1,825,421 Consumer and real estate - home equity Current period gross charge-offs — — — — — (374) — (3,145) (3,519) Leases and other loans Performing 99,355 94,583 33,981 29,249 22,671 22,958 — — 302,797 Nonperforming — — — — — 11,334 — — 11,334 Leases and other loans 99,355 94,583 33,981 29,249 22,671 34,292 — — 314,131 Leases and other loans Current period gross charge-offs (214) (401) (133) (72) (52) (417) — (599) (1,888) Construction - other Performing 31,781 173,436 25,814 3,335 — — — — 234,366 Nonperforming — — — — — — — — — Total construction - other 31,781 173,436 25,814 3,335 — — — — 234,366 Construction - other Current period gross charge-offs — — — — — — — — — Total Performing $ 714,523 $ 1,608,325 $ 1,869,784 $ 1,119,036 $ 349,051 $ 959,132 $ 814,043 $ 26,745 $ 7,460,639 Nonperforming 60 1,061 5,196 5,068 5,305 40,147 1,393 2,311 60,541 Total $ 714,583 $ 1,609,386 $ 1,874,980 $ 1,124,104 $ 354,356 $ 999,279 $ 815,436 $ 29,056 $ 7,521,180 December 31, 2022 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2022 2021 2020 2019 2018 Prior Cost Basis Cost Basis Total Real estate - residential mortgage Performing $ 933,903 $ 1,708,703 $ 1,054,126 $ 286,167 $ 87,455 $ 620,416 $ — $ — $ 4,690,770 Nonperforming 1,199 5,104 6,597 6,466 4,587 22,556 — — 46,509 Total real estate - residential mortgage 935,102 1,713,807 1,060,723 292,633 92,042 642,972 — — 4,737,279 Real estate - residential mortgage Current period gross charge-offs — — — — — — — (66) (66) Consumer and Real estate - home equity Performing 416,631 109,724 80,422 52,384 45,642 211,127 842,226 34,061 1,792,217 Nonperforming 292 298 174 36 98 6,512 1,722 668 9,800 Total consumer and real estate - home equity 416,923 110,022 80,596 52,420 45,740 217,639 843,948 34,729 1,802,017 Consumer and Real estate - home equity Current period gross charge-offs — (587) (70) (108) (16) (442) (178) (3,011) (4,412) Construction - other Performing 164,924 73,492 10,892 — 1,077 — — — 250,385 Nonperforming — — — — — — — — — Total construction - other 164,924 73,492 10,892 — 1,077 — — — 250,385 Construction - other Current period gross charge-offs — — — — — — — — — Leases and other loans Performing 146,198 39,427 40,024 29,309 15,019 15,670 — — 285,647 Nonperforming — — — — — 13,307 — — 13,307 Leases and other loans 146,198 39,427 40,024 29,309 15,019 28,977 — — 298,954 Leases and other loans Current period gross charge-offs (506) (167) (140) (80) (47) (1,191) — — (2,131) Total Performing $ 1,661,656 $ 1,931,346 $ 1,185,464 $ 367,860 $ 149,193 $ 847,213 $ 842,226 $ 34,061 $ 7,019,019 Nonperforming 1,491 5,402 6,771 6,502 4,685 42,375 1,722 668 69,616 Total $ 1,663,147 $ 1,936,748 $ 1,192,235 $ 374,362 $ 153,878 $ 889,588 $ 843,948 $ 34,729 $ 7,088,635 The following table presents non-performing assets: June 30, December 31, (dollars in thousands) Non-accrual loans $ 123,280 $ 144,443 Loans 90 days or more past due and still accruing (1) 24,415 27,463 Total non-performing loans 147,695 171,906 OREO (2) 3,881 5,790 Total non-performing assets $ 151,576 $ 177,696 (1) Excludes PPP loans which are fully guaranteed by the federal government of $1.0 million and $7.7 million as of June 30, 2023 and December 31, 2022, respectively. (2) Excludes $8.4 million and $6.0 million of residential mortgage properties for which formal foreclosure proceedings were in process as of June 30, 2023 and December 31, 2022, respectively. The following tables present the aging of the amortized cost basis of loans, by class segment: 30-59 60-89 ≥ 90 Days Days Past Days Past Past Due Non- Due Due and Accruing Accrual Current Total (dollars in thousands) June 30, 2023 Real estate – commercial mortgage $ 6,566 $ 2,671 $ 1,233 $ 53,815 $ 7,782,576 $ 7,846,861 Commercial and industrial (1) 3,542 1,977 1,100 29,488 4,566,339 4,602,446 Real estate – residential mortgage 35,456 6,017 17,457 21,700 5,066,632 5,147,262 Real estate – home equity 5,865 1,567 3,902 5,827 1,044,730 1,061,891 Real estate – construction 1,719 — — 1,099 1,305,746 1,308,564 Consumer 6,482 1,382 723 17 754,926 763,530 Leases and other loans (2) 462 375 — 11,334 301,960 314,131 Total $ 60,092 $ 13,989 $ 24,415 $ 123,280 $ 20,822,909 $ 21,044,685 (1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.0 million and $1.0 million, respectively, which are fully guaranteed by the federal government and are classified as current. (2) Includes unearned income. 30-59 Days Past 60-89 ≥ 90 Days Non- Current Total (dollars in thousands) December 31, 2022 Real estate – commercial mortgage $ 10,753 $ 4,644 $ 2,473 $ 70,161 $ 7,605,804 $ 7,693,835 Commercial and industrial (1) 6,067 2,289 1,172 27,116 4,440,893 4,477,537 Real estate – residential mortgage 57,061 8,209 20,215 26,294 4,625,500 4,737,279 Real estate – home equity 5,666 2,444 2,704 6,105 1,085,919 1,102,838 Real estate – construction 1,762 1,758 — 1,368 1,265,037 1,269,925 Consumer 6,692 1,339 899 92 690,157 699,179 Leases and other loans (2) 348 122 — 13,307 285,177 298,954 Total $ 88,349 $ 20,805 $ 27,463 $ 144,443 $ 19,998,487 $ 20,279,547 (1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.7 million and $7.7 million, respectively, which are fully guaranteed by the federal government and are classified as current. (2) Includes unearned income. Collateral-Dependent Loans A loan or a lease, is considered to be collateral-dependent when the debtor is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. For all classes of loans and leases deemed collateral-dependent, the Corporation elected the practical expedient to estimate expected credit losses based on the collateral’s fair value less cost to sell. In most cases, the Corporation records a partial charge-off to reduce the collateral-dependent loan's or lease's carrying value to the collateral’s fair value less cost to sell. Substantially all of the collateral supporting collateral-dependent loans or leases consists of various types of real estate, including residential properties, commercial properties, such as retail centers, office buildings, and lodging, agriculture land, and vacant land. Loan Modifications On January 1, 2023, the Corporation adopted ASU 2022-02. Loan modifications reported below do not include modifications with insignificant payment delays. ASU 2022-02 lists the following factors when considering if the loan modification has insignificant payment delays: (1) the amount of the restructured payments subject to the delay is insignificant relative to the unpaid principal or collateral value of the debt and will result in an insignificant shortfall in the contractual amount due, and (2) the delay in timing of the restructured payment period is insignificant relative to the frequency of payments due under the debt, the debt’s original contractual maturity or the debt’s original expected duration. The ACL incorporates an estimate of lifetime expected credit losses and is recorded upon asset origination or acquisition. The starting point for the estimate of the ACL is historical loss information, which includes losses from modifications of receivables to borrowers experiencing financial difficulty. The Corporation uses a probability of default/loss given default model to determine the ACL. An assessment of whether a borrower is experiencing financial difficulty is made on the date of a modification. The Corporation modifies loans by providing a concession when deemed appropriate. Depending on the circumstances, a term extension, interest rate reduction or principal forgiveness may be granted. In certain instances a combination of concessions may be provided to a customer. Because the effect of most modifications made to borrowers experiencing financial difficulty is already included in the ACL, a change to the ACL is generally not recorded upon modification. When principal forgiveness is provided, the amortized cost basis of the forgiven portion of the asset is written off against the ACL. The amount of the principal forgiveness is deemed to be uncollectible; therefore, that portion of the loan is written off, resulting in a reduction of the amortized cost basis and a corresponding adjustment to the ACL. The following table presents the amortized cost basis during the three months and six months ended June 30, 2023 of the loans modified to borrowers experiencing financial difficulty, disaggregated by class of financing receivable and type of concession granted: Term Extension Three months ended June 30, 2023 Six months ended June 30, 2023 Amortization Cost Basis % of Class of Financing Receivable Amortization Cost Basis % of Class of Financing Receivable (dollars in thousands) Real estate - commercial mortgage $ 276 — % $ 1,478 0.02 % Commercial and industrial — — 75 — Real estate - residential mortgage 2,045 0.04 3,423 0.07 Total $ 2,321 $ 4,976 The following table presents the financial effect of the modifications made to borrowers experiencing financial difficulty for the three months and six months ended June 30, 2023: Term Extension Financial Effect Three months ended June 30, 2023 Real estate - commercial mortgage Added a weighted-average 1.25 years to the life of loans, which reduced monthly payment amounts for the borrowers. Real estate - residential mortgage Added a weighted-average 5.29 years to the life of loans, which reduced monthly payment amounts for the borrowers. Six months ended June 30, 2023 Real estate - commercial mortgage Added a weighted-average 2.05 years to the life of loans, which reduced monthly payment amounts for the borrowers. Commercial and industrial Added a weighted-average 2.88 years to the life of loans, which reduced monthly payment amounts for the borrowers. Real estate - residential mortgage Added a weighted-average 4.64 years to the life of loans, which reduced monthly payment amounts for the borrowers. During the six months ended June 30, 2023, there were no loans modified due to financial difficulty where there was an interest rate reduction or principal balance forgiveness. During the six months ended June 30, 2023, there were no loans modified due to financial difficulty that defaulted in the six months subsequent to modification. The following table presents the performance of loans that have been modified in the last six months as of June 30, 2023. 30-89 90+ Total Days Past Past Due Past Current Due and Accruing Due (dollars in thousands) Real estate - commercial mortgage $ 1,478 $ — $ — $ — Commercial and industrial 75 — — — Real estate - residential mortgage 3,423 — — — Total $ 4,976 $ — $ — $ —

Mortgage Servicing Rights

Mortgage Servicing Rights	6 Months Ended
	Jun. 30, 2023
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights The following table summarizes the changes in MSRs, which are included in other assets on the consolidated balance sheets, with adjustments to the carrying value included in mortgage banking income on the consolidated statements of income: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Amortized cost: Balance at beginning of period $ 33,082 $ 35,624 $ 34,217 $ 35,993 Originations of MSRs 688 1,053 884 2,407 Amortization (1,312) (1,428) (2,643) (3,151) Balance at end of period $ 32,458 $ 35,249 $ 32,458 $ 35,249 Valuation allowance: Balance at beginning of period $ — $ — $ — $ (600) Reduction (addition) to valuation allowance — — — 600 Balance at end of period $ — $ — $ — $ — Net MSRs at end of period $ 32,458 $ 35,249 $ 32,458 $ 35,249 Estimated fair value of MSRs at end of period $ 49,444 $ 49,804 $ 49,444 $ 49,804 MSRs represent the economic value of contractual rights to service mortgage loans that have been sold. The total portfolio of mortgage loans serviced by the Corporation for unrelated third parties was $4.1 billion and $4.2 billion as of June 30, 2023 and December 31, 2022, respectively. Actual and expected prepayments of the underlying mortgage loans can impact the fair values of the MSRs. The Corporation accounts for MSRs at the lower of amortized cost or fair value. The fair value of MSRs is estimated by discounting the estimated cash flows from servicing income, net of expense, over the expected life of the underlying loans at a discount rate commensurate with the risk associated with these assets. Expected life is based on the contractual terms of the loans, as adjusted for prepayment projections. The fair values of MSRs were $49.4 million and $50.0 million at June 30, 2023 and December 31, 2022 respectively. Based on its fair value analysis as of June 30, 2023, the Corporation determined that no valuation allowance was required as of June 30, 2023.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Corporation manages its exposure to certain interest rate and foreign currency risks through the use of derivatives. Certain of the Corporation's outstanding derivative contracts are designated as hedges, and none are entered into for speculative purposes. The Corporation enters into derivative contracts that are intended to economically hedge certain of its risks, even if hedge accounting does not apply or the Corporation elects not to apply hedge accounting. Mortgage Banking Derivatives In connection with its mortgage banking activities, the Corporation enters into commitments to originate certain fixed-rate residential mortgage loans for customers, also referred to as interest rate locks. In addition, the Corporation enters into forward commitments for the future sales or purchases of mortgage-backed securities to or from third-party counterparties to hedge the effect of changes in interest rates on the values of both the interest rate locks and mortgage loans held for sale. Forward sales commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. The amount necessary to settle each interest rate lock is based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured. Interest Rate Derivatives - Non-Designated Hedges The Corporation enters into interest rate derivatives with certain qualifying commercial loan customers to meet their interest rate risk management needs. The Corporation simultaneously enters into interest rate derivatives with dealer counterparties, with identical notional amounts and terms. The net result of these interest rate derivatives is that the customer pays a fixed rate of interest and the Corporation receives a floating rate. As the interest rate derivatives associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. The Corporation's existing credit derivatives result from participation in interest rate derivatives provided by external lenders as part of loan participation arrangements and, therefore, are not used to manage interest rate risk in the Corporation's assets or liabilities. The Corporation is required to clear all eligible interest rate derivative contracts with a clearing agent and is subject to the regulations of the Commodity Futures Trading Commission. Cash Flow Hedges of Interest Rate Risk The Corporation's objectives in using interest rate derivatives are to reduce volatility in net interest income and to manage its exposure to interest rate movements. To accomplish this objective, the Corporation primarily uses interest rate derivatives as part of its interest rate risk management strategy. The Corporation enters into interest rate derivatives designated as cash flow hedges to hedge the variable cash flows associated with existing floating rate loans. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the unrealized gain or loss on the derivatives is recorded in AOCI and subsequently reclassified into interest income in the same period during which the hedged transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest income as interest payments are made on the Corporation's variable-rate loans. During the next twelve months, the Corporation estimates that an additional $28.3 million of unrealized losses will be reclassified as a decrease to interest income. In January 2023, the Corporation terminated interest rate derivatives designated as cash flow hedges with a combined notional amount of $1.0 billion. As the hedged transaction continues to be probable, the original unrealized loss of $70.6 million included in AOCI will be recognized as a reduction to interest income when the previously forecasted hedged item affects earnings in future periods. During the six months ended June 30, 2023, $12.6 million of these unrealized losses have been reclassified as a reduction of interest income on loans, including fees, on the Corporation's consolidated statements of income. Foreign Exchange Contracts The Corporation enters into foreign exchange contracts to accommodate the needs of its customers. Foreign exchange contracts are commitments to buy or sell foreign currency on a specific date at a contractual price. The Corporation limits its foreign exchange exposure with customers by entering into contracts with institutional counterparties to mitigate its foreign exchange risk. The Corporation also holds certain amounts of Foreign Currency Nostro Accounts. The Corporation limits the total overnight net foreign currency open positions, which is defined as an aggregate of all outstanding contracts, to $0.5 million. The following table presents a summary of the notional amounts and fair values of derivative financial instruments: June 30, 2023 December 31, 2022 Notional Asset Notional Asset (dollars in thousands) Interest Rate Locks with Customers Positive fair values $ 136,789 $ 465 $ 70,836 $ 182 Negative fair values 3,405 (11) 4,939 (51) Forward Commitments Positive fair values 36,500 399 — — Negative fair values — — 10,000 (147) Interest Rate Derivatives with Customers Positive fair values 410,749 5,655 171,317 3,337 Negative fair values 3,925,331 (283,189) 3,802,480 (280,401) Interest Rate Derivatives with Dealer Counterparties Positive fair values 3,925,331 167,164 3,802,480 161,956 Negative fair values 410,749 (6,022) 171,317 (3,703) Interest Rate Derivatives used in Cash Flow Hedges Positive fair values 200,000 396 600,000 1,321 Negative fair values 1,300,000 (2,002) 1,000,000 (12,163) Foreign Exchange Contracts with Customers Positive fair values 21,527 234 11,123 571 Negative fair values 20,839 (238) 3,672 (85) Foreign Exchange Contracts with Correspondent Banks Positive fair values 20,166 313 4,887 101 Negative fair values 5,397 (37) 8,280 (499) The following table presents the effect of fair value and cash flow hedge accounting on AOCI: Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included Component Amount of Gain (Loss) Recognized in OCI Excluded Component Location of Gain (Loss) Recognized from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included Component Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component (dollars in thousands) Derivatives in Cash Flow Hedging Relationships: Three months ended June 30, 2023 Interest Rate Products $ (7,251) $ (7,251) $ — Interest Income $ (7,032) $ (7,032) $ — Three months ended June 30, 2022 Interest Rate Products (11,100) (11,100) — Interest Income 434 434 — Six months ended June 30, 2023 Interest Rate Products 5,284 5,284 — Interest Income (14,189) (14,189) — Six months ended June 30, 2022 Interest Rate Products (51,663) (51,663) — Interest Income 2,382 2,382 — The following table presents the effect of fair value and cash flow hedge accounting on the income statement: Consolidated Statements of Income Classification Interest Income Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Total amounts of income line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (7,032) $ 434 $ (14,189) $ 2,382 Interest contracts: Amount of gain (loss) reclassified from AOCI into income (7,032) 434 (14,189) 2,382 Amount of gain or (loss) reclassified from AOCI into income as a result that a forecasted transaction is no longer probable of occurring — — — — Amount of gain (loss) reclassified from AOCI into income - included component (7,032) 434 (14,189) 2,382 Amount of gain (loss) reclassified from AOCI into income - excluded component — — — — The following table presents a summary of the net fair value gains (losses) on derivative financial instruments: Consolidated Statements of Income Classification Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Mortgage banking derivatives (1) Mortgage banking income $ 475 $ (2,095) $ 869 $ (1,710) Interest rate derivatives Other expense — — — — Foreign exchange contracts Other income 93 (6) 184 41 Net fair value gains/(losses) on derivative financial instruments $ 568 $ (2,101) $ 1,053 $ (1,669) (1) Includes interest rate locks with customers and forward commitments. Fair Value Option The Corporation has elected to measure mortgage loans held for sale at fair value. The following table presents a summary of mortgage loans held for sale and the impact of the fair value election on the consolidated financial statements as of the periods shown: June 30, December 31, (dollars in thousands) Amortized cost (1) $ 14,531 $ 7,180 Fair value 14,673 7,264 (1) Cost basis of mortgage loans held for sale represents the unpaid principal balance. Losses related to changes in fair values of mortgage loans held for sale were nominal for the three months ended June 30, 2023 compared to gains of $0.5 million for the three months ended June 30, 2022. Gains related to changes in fair values of mortgage loans held for sale were $0.1 million for the six months ended June 30, 2023 compared to losses of $0.6 million for the six months ended June 30, 2022. Balance Sheet Offsetting The fair values of interest rate derivative agreements and foreign exchange contracts the Corporation enters into with customers and dealer counterparties may be eligible for offset on the consolidated balance sheets if they are subject to master netting arrangements or similar agreements. The Corporation has elected to net its financial assets and liabilities designated as cash flow hedges when offsetting is permitted. The following table presents the Corporation's financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets: Gross Amounts Gross Amounts Not Offset Recognized on the Consolidated on the Balance Sheets Consolidated Financial Cash Net Balance Sheets Instruments (1) Collateral (2) Amount (dollars in thousands) June 30, 2023 Interest rate derivative assets $ 173,215 $ (9,022) $ — $ 164,193 Foreign exchange derivative assets with correspondent banks 313 (313) — — Total $ 173,528 $ (9,335) $ — $ 164,193 Interest rate derivative liabilities $ 291,213 $ (7,416) $ (118,789) $ 165,008 Foreign exchange derivative liabilities with correspondent banks 37 (313) — (276) Total $ 291,250 $ (7,729) $ (118,789) $ 164,732 December 31, 2022 Interest rate derivative assets $ 166,614 $ (8,071) $ — $ 158,543 Foreign exchange derivative assets with correspondent banks 101 (101) — — Total $ 166,715 $ (8,172) $ — $ 158,543 Interest rate derivative liabilities $ 296,267 $ (2,771) $ (127,638) $ 165,858 Foreign exchange derivative liabilities with correspondent banks 499 (101) — 398 Total $ 296,766 $ (2,872) $ (127,638) $ 166,256 (1) For interest rate derivative assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default. For interest rate derivative liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default. (2) Amounts represent cash collateral received from the counterparty or posted by the Corporation on interest rate derivative transactions and foreign exchange contracts with financial institution counterparties. Interest rate derivatives with customers are collateralized by the same collateral securing the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) Income The following table presents the components of other comprehensive income (loss): Before-Tax Amount Tax Effect Net of Tax Amount Three months ended June 30, 2023 (dollars in thousands) Net unrealized losses on securities $ (40,361) $ 9,142 $ (31,219) Reclassification adjustment for securities net change included in net income (1) (4) 1 (3) Amortization of net unrealized gains on AFS securities transferred to HTM (2) 1,941 (440) 1,501 Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (7,251) 1,665 (5,586) Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges (3) 7,032 (22) 7,010 Amortization of net unrecognized pension and postretirement items (4) 4 (1) 3 Total Other Comprehensive Loss $ (38,639) $ 10,345 $ (28,294) Three months ended June 30, 2022 Net unrealized losses on securities $ (114,312) $ 25,960 $ (88,352) Reclassification adjustment for securities net change included in net income (1) 8 (2) 6 Amortization of net unrealized gains on AFS securities transferred to HTM (2) (62,250) 14,137 (48,113) Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (11,100) 2,514 (8,586) Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges (3) (434) 99 (335) Amortization of net unrecognized pension and postretirement items (4) 33 (8) 25 Total Other Comprehensive Loss $ (188,055) $ 42,700 $ (145,355) Six months ended June 30, 2023 Unrealized gain on securities $ 1,838 $ (416) $ 1,422 Reclassification adjustment for securities net change included in net income (1) 18 (4) 14 Amortization of net unrealized gains on AFS securities transferred to HTM (2) 3,851 (872) 2,979 Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) 5,284 (17,690) (12,406) Reclassification adjustment for net change realized in net income on interest rate swaps used in cash flow hedges (3) 14,189 (36) 14,153 Amortization of net unrecognized pension and postretirement items (4) 36 (8) 28 Total Other Comprehensive Income $ 25,216 $ (19,026) $ 6,190 Six months ended June 30, 2022 Unrealized loss on securities $ (313,379) $ 71,168 $ (242,211) Reclassification adjustment for securities net change included in net income (1) 27 (6) 21 Amortization of net unrealized losses on AFS securities transferred to HTM (2) (61,686) 14,009 (47,677) Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (51,663) 11,701 (39,962) Reclassification adjustment for change realized in net income on interest rate swaps used in cash flow hedges (3) (2,382) 540 (1,842) Amortization of net unrecognized pension and postretirement items (4) 65 (15) 50 Total Other Comprehensive Loss $ (429,018) $ 97,397 $ (331,621) (1) Amounts reclassified out of AOCI. Before-tax amounts included in "Investment securities gains, net" on the Consolidated Statements of Income. See "Note 4 - Investment Securities," for additional details. (2) Amounts reclassified out of AOCI. Before-tax amounts included as a reduction to "Interest Income" on the Consolidated Statements of Income. (3) Tax effect includes reversal of interest rate derivatives used in cash flow hedges deferred tax benefit upon termination. (4) Amounts reclassified out of AOCI. Before-tax amounts included in "Salaries and employee benefits" on the Consolidated Statements of Income. See "Note 12 - Employee Benefit Plans," for additional details. The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax: Unrealized Gains (Losses) on Investment Securities Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges Unrecognized Pension and Postretirement Plan Income (Costs) Total (dollars in thousands) Three months ended June 30, 2023 Balance at March 31, 2023 $ (282,095) $ (61,453) $ (7,444) $ (350,992) OCI before reclassifications (31,219) (5,586) — (36,805) Amounts reclassified from AOCI (3) 7,010 3 7,010 Amortization of net unrealized gains on AFS securities transferred to HTM 1,501 — — 1,501 Balance at June 30, 2023 $ (311,816) $ (60,029) $ (7,441) $ (379,286) Three months ended June 30, 2022 Balance at March 31, 2022 $ (112,968) $ (37,699) $ (8,188) $ (158,855) OCI before reclassifications (88,352) (8,586) — (96,938) Amounts reclassified from AOCI 6 (335) 25 (304) Amortization of net unrealized losses on AFS securities transferred to HTM (48,113) — — (48,113) Balance at June 30, 2022 $ (249,427) $ (46,620) $ (8,163) $ (304,210) Six months ended June 30, 2023 Balance at December 31, 2022 $ (316,231) $ (61,776) $ (7,469) $ (385,476) OCI before reclassifications 1,422 (12,406) — (10,984) Amounts reclassified from AOCI 14 14,153 28 14,195 Amortization of net unrealized gains on AFS securities transferred to HTM 2,979 — — 2,979 Balance at June 30, 2023 $ (311,816) $ (60,029) $ (7,441) $ (379,286) Six months ended June 30, 2022 Balance at December 31, 2021 $ 40,440 $ (4,816) $ (8,213) $ 27,411 OCI before reclassifications (242,211) (39,962) — (282,173) Amounts reclassified from AOCI 21 (1,842) 50 (1,771) Amortization of net unrealized losses on AFS securities transferred to HTM (47,677) — — (47,677) Balance at June 30, 2022 $ (249,427) $ (46,620) $ (8,163) $ (304,210)

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements FASB ASC Topic 820 establishes a fair value hierarchy for the inputs to valuation techniques used to measure assets and liabilities at fair value using the following three categories (from highest to lowest priority): • Level 1 – Inputs that represent quoted prices for identical instruments in active markets. • Level 2 – Inputs that represent quoted prices for similar instruments in active markets or quoted prices for identical instruments in non-active markets. Also includes valuation techniques whose inputs are derived principally from observable market data other than quoted prices, such as interest rates or other market-corroborated means. • Level 3 – Inputs that are largely unobservable, as little or no market data exists for the instrument being valued. All assets and liabilities measured at fair value on both a recurring and nonrecurring basis have been categorized into the above three levels. The following tables present assets and liabilities measured at fair value on a recurring basis and reported on the consolidated balance sheets: June 30, 2023 Level 1 Level 2 Level 3 Total (dollars in thousands) Loans held for sale $ — $ 14,673 $ — $ 14,673 Available for sale investment securities: U.S. Government securities 220,638 — — 220,638 U.S. Government-sponsored agency securities — 999 — 999 State and municipal securities — 1,053,908 — 1,053,908 Corporate debt securities — 424,379 — 424,379 Collateralized mortgage obligations — 120,458 — 120,458 Residential mortgage-backed securities — 204,888 — 204,888 Commercial mortgage-backed securities — 547,451 — 547,451 Total available for sale investment securities 220,638 2,352,083 — 2,572,721 Other assets: Investments held in Rabbi Trust 28,046 — — 28,046 Derivative assets 547 174,079 — 174,626 Total assets $ 249,231 $ 2,540,835 $ — $ 2,790,066 Other liabilities: Deferred compensation liabilities $ 28,046 $ — $ — $ 28,046 Derivative liabilities 275 291,224 — 291,499 Total liabilities $ 28,321 $ 291,224 $ — $ 319,545 December 31, 2022 Level 1 Level 2 Level 3 Total (dollars in thousands) Loans held for sale $ — $ 7,264 $ — $ 7,264 Available for sale investment securities: U.S. Government securities 218,485 — — 218,485 U.S. Government sponsored agency securities — 1,008 — 1,008 State and municipal securities — 1,105,712 — 1,105,712 Corporate debt securities — 422,309 — 422,309 Collateralized mortgage obligations — 134,033 — 134,033 Residential mortgage-backed securities — 212,698 — 212,698 Commercial mortgage-backed securities — 552,522 — 552,522 Total available for sale investment securities 218,485 2,428,282 — 2,646,767 Other assets: Investments held in Rabbi Trust 23,435 — — 23,435 Derivative assets 672 166,796 — 167,468 Total assets $ 242,592 $ 2,602,342 $ — $ 2,844,934 Other liabilities: Deferred compensation liabilities $ 23,435 $ — $ — $ 23,435 Derivative liabilities 584 296,465 — 297,049 Total liabilities $ 24,019 $ 296,465 $ — $ 320,484 The valuation techniques used to measure fair value for the items in the preceding tables are as follows: Loans held for sale – This category includes mortgage loans held for sale that are measured at fair value. Fair values as of June 30, 2023 and December 31, 2022 were measured at the price that secondary market investors were offering for loans with similar characteristics. Available for sale investment securities – Included in this asset category are debt securities. Level 2 investment securities are valued by a third-party pricing service. The pricing service uses pricing models that vary based on asset class and incorporate available market information, including quoted prices of investment securities with similar characteristics. Because many fixed income securities do not trade on a daily basis, pricing models use available information, as applicable, through processes such as benchmark yield curves, benchmarking of like securities, sector groupings and matrix pricing. Standard market inputs include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data, including market research publications. For certain security types, additional inputs may be used, or some of the standard market inputs may not be applicable. • U.S. Government securities – These securities are classified as Level 1. Fair values are based on quoted prices with active markets. • State and municipal securities/Collateralized mortgage obligations/Residential mortgage-backed securities/Commercial mortgage-backed securities – These debt securities are classified as Level 2. Fair values are determined by a third-party pricing service, as detailed above. • Corporate debt securities – This category consists of subordinated debt and senior debt issued by financial institutions ($417.4 million at June 30, 2023 and $415.4 million at December 31, 2022) and other corporate debt issued by non-financial institutions ($7.0 million at June 30, 2023 and $6.9 million at December 31, 2022). Level 2 investments include subordinated debt and senior debt, and other corporate debt issued by non-financial institutions at June 30, 2023 and December 31, 2022. The fair values for these corporate debt securities are determined by a third-party pricing service, as detailed above. Investments held in Rabbi Trust – This category consists of mutual funds that are held in trust for employee deferred compensation plans that the Corporation has elected to measure at fair value. Shares of mutual funds are valued based on net asset value, which represent quoted market prices for the underlying shares held in the mutual funds, and as such, are classified as Level 1. Derivative assets – Fair value of foreign currency exchange contracts are classified as Level 1 assets ($0.5 million at June 30, 2023 and $0.7 million at December 31, 2022). The mutual funds and foreign exchange prices used to measure these items at fair value are based on quoted prices for identical instruments in active markets. Level 2 assets, representing the fair value of mortgage banking derivatives in the form of interest rate locks and forward commitments with secondary market investors ($0.9 million at June 30, 2023 and $0.2 million at December 31, 2022) and the fair value of interest rate derivatives ($173.2 million at June 30, 2023 and $166.6 million at December 31, 2022). The fair values of the interest rate locks, forward commitments and interest rate derivatives represent the amounts that would be required to settle the derivative financial instruments at the balance sheet date. See "Note 7 - Derivative Financial Instruments," for additional information. Deferred compensation liabilities – Fair value of amounts due to employees under deferred compensation plans, classified as Level 1 liabilities and are included in other liabilities on the consolidated balance sheets. The fair values of these liabilities are determined in the same manner as the related assets, as described under the heading "Investments held in Rabbi Trust" above. Derivative liabilities – Level 1 liabilities, representing the fair value of foreign currency exchange contracts ($0.3 million at June 30, 2023 and $0.6 million at December 31, 2022). Level 2 liabilities, representing the fair value of mortgage banking derivatives in the form of interest rate locks and forward commitments with secondary market investors (nominal at June 30, 2023 and $0.2 million at December 31, 2022) and the fair value of interest rate derivatives ($291.2 million at June 30, 2023 and $296.3 million at December 31, 2022). The fair values of these liabilities are determined in the same manner as the related assets, as described under the heading "Derivative assets" above. Certain financial instruments are not measured at fair value on an ongoing basis but are subject to fair value measurement in certain circumstances, such as upon their acquisition or when there is evidence of impairment. The following table presents Level 3 financial assets measured at fair value on a nonrecurring basis: June 30, December 31, (dollars in thousands) Loans, net $ 103,567 $ 121,115 OREO 3,881 5,790 MSRs (1) 49,444 50,044 Total assets $ 156,892 $ 176,949 (1) Amounts shown are estimated fair value. MSRs are recorded on the Corporation's consolidated balance sheets at the lower of amortized cost or fair value. See "Note 6 - Mortgage Servicing Rights" for additional information. The valuation techniques used to measure fair value for the items in the table above are as follows: • Loans, net – This category consists of loans that were individually evaluated for impairment and have been classified as Level 3 assets. The amount shown is the balance of non-accrual loans, net of related ACL. See "Note 5 - Loans and Allowance for Credit Losses," for additional details. • OREO – This category consists of OREO classified as Level 3 assets, for which the fair values were based on estimated selling prices less estimated selling costs for similar assets in active markets. • MSRs - This category consists of MSRs, which were initially recorded at fair value upon the sale of residential mortgage loans to secondary market investors, and subsequently carried at the lower of amortized cost or fair value. MSRs are amortized as a reduction to servicing income over the estimated lives of the underlying loans. MSRs are stratified by product type and evaluated for impairment by comparing each stratum's carrying amount to its estimated fair value. Fair values are determined at the end of each quarter through a discounted cash flows valuation performed by a third-party valuation expert. Significant inputs to the valuation included expected net servicing income, the discount rate and the expected life of the underlying loans. Expected life is based on the contractual terms of the loans, as adjusted for prepayment projections. The weighted average annual constant prepayment rate and the weighted average discount rate used in the June 30, 2023 valuation were 7.8% and 9.0%, respectively. Management reviews the reasonableness of the significant inputs to the third-party valuation in comparison to market data. See "Note 6 - Mortgage Servicing Rights," for additional information. The following tables detail the book values and the estimated fair values of the Corporation's financial instruments as of June 30, 2023 and December 31, 2022. June 30, 2023 Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 Total (dollars in thousands) FINANCIAL ASSETS Cash and cash equivalents $ 504,702 $ 504,702 $ — $ — $ 504,702 FRB and FHLB stock 124,218 — 124,218 — 124,218 Loans held for sale 14,673 — 14,673 — 14,673 AFS securities 2,572,721 220,638 2,352,083 — 2,572,721 HTM securities 1,294,613 — 1,086,692 — 1,086,692 Loans, net 20,757,243 — — 19,233,430 19,233,430 Accrued interest receivable 96,991 96,991 — — 96,991 Other assets 675,328 447,924 174,079 53,325 675,328 FINANCIAL LIABILITIES Demand and savings deposits $ 18,055,623 $ 18,055,623 $ — $ — $ 18,055,623 Brokered deposits 949,259 150,222 797,177 — 947,399 Time deposits 2,201,658 — 2,182,337 — 2,182,337 Accrued interest payable 24,101 24,101 — — 24,101 Federal funds purchased 555,000 555,003 — — 555,003 Federal Home Loan Bank advances 1,165,000 1,164,991 — — 1,164,991 Senior debt and subordinated debt 539,994 — 461,365 — 461,365 Other borrowings 459,120 458,087 1,010 — 459,097 Other liabilities 454,641 146,849 291,224 16,568 454,641 December 31, 2022 Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 Total (dollars in thousands) FINANCIAL ASSETS Cash and cash equivalents $ 681,921 $ 681,921 $ — $ — $ 681,921 FRB and FHLB stock 130,186 — 130,186 — 130,186 Loans held for sale 7,264 — 7,264 — 7,264 AFS securities 2,646,767 218,485 2,428,282 — 2,646,767 HTM securities 1,321,256 — 1,125,049 — 1,125,049 Loans, net 20,010,181 — — 18,862,701 18,862,701 Accrued interest receivable 91,579 91,579 — — 91,579 Other assets 642,049 419,419 166,796 55,834 642,049 FINANCIAL LIABILITIES Demand and savings deposits $ 18,851,912 $ 18,851,912 $ — $ — $ 18,851,912 Brokered deposits 208,416 188,416 25,085 — 213,501 Time deposits 1,589,210 — 1,574,747 — 1,574,747 Accrued interest payable 10,185 10,185 — — 10,185 Federal funds purchased 191,000 190,998 — — 190,998 Federal Home Loan Bank advances 1,250,000 1,249,629 — — 1,249,629 Senior debt and subordinated debt 539,634 — 456,867 — 456,867 Other borrowings 890,573 889,393 1,180 — 890,573 Other liabilities 467,705 154,912 296,465 16,328 467,705 Fair values of financial instruments are significantly affected by the assumptions used, principally the timing of future cash flows and discount rates. Because assumptions are inherently subjective in nature, the estimated fair values cannot be substantiated by comparison to independent market quotes and, in many cases, the estimated fair values could not necessarily be realized in an immediate sale or settlement of the instrument. The aggregate fair value amounts presented do not necessarily represent management’s estimate of the underlying value of the Corporation. For short-term financial instruments, defined as those with remaining maturities of 90 days or less, and excluding those recorded at fair value on the Corporation's consolidated balance sheets, book value was considered to be a reasonable estimate of fair value. The following instruments are predominantly short-term: Assets Liabilities Cash and cash equivalents Demand and savings deposits Accrued interest receivable Other borrowings Accrued interest payable FRB and FHLB stock represent restricted investments and are carried at cost on the consolidated balance sheets, which is a reasonable estimate of fair value. As of June 30, 2023, fair values for loans and time deposits were estimated by discounting future cash flows using the current rates, as adjusted for liquidity considerations, at which similar loans would be made to borrowers and similar deposits would be issued to customers for the same remaining maturities. Fair values of loans also include estimated credit losses that would be assumed in a market transaction, which represents estimated exit prices. Brokered deposits consist of demand and saving deposits, which are classified as Level 1, and time deposits, which are classified as Level 2. The fair value of these deposits is determined in a manner consistent with the respective type of deposits discussed above.

Net Income Per Share

Net Income Per Share	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share Basic net income per share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding. Diluted net income per share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding plus the incremental number of shares added as a result of converting common stock equivalents, calculated using the treasury stock method. The Corporation's common stock equivalents consist of outstanding stock options, restricted stock, RSUs, and PSUs. PSUs are required to be included in weighted average diluted shares outstanding if performance measures, as defined in each PSU award agreement, are met as of the end of the period. A reconciliation of weighted average shares outstanding used to calculate basic and diluted net income per share follows (in thousands, except per share data): Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 Weighted average shares outstanding (basic) 165,854 160,920 166,227 160,755 Impact of common stock equivalents 1,337 1,155 1,582 1,260 Weighted average shares outstanding (diluted) 167,191 162,075 167,809 162,015 Per share: Basic $ 0.46 $ 0.42 $ 0.86 $ 0.80 Diluted 0.46 0.42 0.85 0.80

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation The Corporation grants equity awards to employees in the form of stock options, restricted stock, RSUs or PSUs under its Employee Equity Plan. In addition, employees may purchase stock under the Corporation's Employee Stock Purchase Plan. The fair value of equity awards granted to employees is recognized as compensation expense over the period during which employees are required to provide service in exchange for such awards. Compensation expense for PSUs is also recognized over the period during which employees are required to provide service in exchange for such awards, however, compensation expense may vary based on the expectations for actual performance relative to defined performance measures. The Corporation also grants equity awards to non-employee members of its board of directors and the Bank board of directors under the Directors’ Plan. Under the Directors’ Plan, the Corporation can grant equity awards to non-employee Corporation and Bank directors in the form of restricted stock, RSUs or common stock. Recent grants of equity awards under the Directors’ Plan have been limited to RSUs. Equity awards under the Employee Equity Plan are generally granted annually and generally become fully vested over or after a three-year vesting period. The vesting period for non-performance-based awards represents the period during which employees are required to provide service in exchange for such awards. Equity awards under the Directors' Plan are generally granted annually and become fully vested after a one-year vesting period. Certain events, as defined in the Employee Equity Plan and the Directors' Plan, result in the acceleration of the vesting of equity awards. Fair values for RSUs and a majority of PSUs are based on the trading price of the Corporation's stock on the date of grant and earn dividend equivalents during the vesting period, which are forfeitable if the awards do not vest. The fair value of certain PSUs is estimated through the use of the Monte Carlo valuation methodology as of the date of grant. As of June 30, 2023, the Employee Equity Plan had approximately 4.4 million shares reserved for future grants through 2032, and the Directors’ Plan had approximately 406,000 shares reserved for future grants through 2033. The following table presents compensation expense and the related tax benefits for equity awards recognized in the consolidated statements of income: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Compensation expense $ 2,571 $ 3,846 $ 4,240 $ 6,586 Tax benefit (565) (758) (927) (1,361) Total stock-based compensation, net of tax $ 2,006 $ 3,088 $ 3,313 $ 5,225

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2023
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans The net periodic pension cost for the Pension Plan consisted of the following components: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Interest cost $ 855 $ 598 $ 1,711 $ 1,196 Expected return on plan assets (877) (1,099) (1,754) (2,197) Net amortization and deferral 80 164 161 327 Net periodic pension cost $ 58 $ (337) $ 118 $ (674) The components of the net benefit for the Postretirement Plan consisted of the following components: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Interest cost $ 13 $ 9 $ 26 $ 17 Net accretion and deferral (136) (131) (272) (262) Net periodic benefit $ (123) $ (122) $ (246) $ (245) In connection with the Merger, the Corporation assumed the obligations of Prudential Bancorp under a multiemployer defined benefit pension plan that had previously been closed to new Prudential Bancorp participants.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments The Corporation is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its borrowers or obligors. Commitments to extend credit are agreements to lend to a borrower or obligor as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee by the borrower or obligor. Since a portion of the commitments is expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Corporation evaluates each borrower's or obligor's creditworthiness on a case-by-case basis. The amount of collateral, if any, obtained upon an extension of credit is based on management's credit evaluation of the borrower or obligor. Collateral held varies but may include accounts receivable, inventory, property, equipment and income-producing commercial properties. Standby letters of credit are conditional commitments issued to guarantee the financial or performance obligation of a borrower or obligor to a third party. Commercial letters of credit are conditional commitments issued to facilitate foreign and domestic trade transactions for borrowers or obligors. The credit risk involved in issuing letters of credit is similar to that involved in extending loan facilities. These obligations are underwritten consistent with commercial lending standards. The maximum exposure to loss for standby and commercial letters of credit is equal to the contractual (or notional) amount of the instruments. The following table presents the Corporation's commitments to extend credit and letters of credit: June 30, December 31, 2022 (dollars in thousands) Commitments to extend credit $ 8,963,903 $ 8,695,621 Standby letters of credit 259,063 260,829 Commercial letters of credit 53,816 49,288 Residential Lending The Corporation originates and sells residential mortgages to secondary market investors. The Corporation provides customary representations and warranties to secondary market investors that specify, among other things, that the loans have been underwritten to the standards of the secondary market investor. The Corporation may be required to repurchase specific loans or reimburse the investor for a credit loss incurred on a sold loan if it is determined that the representations and warranties have not been met. Under some agreements with secondary market investors, the Corporation may have additional credit exposure beyond customary representations and warranties, based on the specific terms of those agreements. The Corporation maintains a reserve for estimated losses related to loans sold to investors. As of June 30, 2023 and December 31, 2022, the total reserve for losses on residential mortgage loans sold was $1.4 million, including reserves for both representation and warranty and credit loss exposures. In addition, a component of ACL - OBS credit exposures of $5.0 million and $6.0 million, as of June 30, 2023 and December 31, 2022, respectively, related to additional credit exposures for potential loan repurchases. Legal Proceedings The Corporation is involved in various pending and threatened claims and other legal proceedings in the ordinary course of its business activities. The Corporation evaluates the possible impact of these matters, taking into consideration the most recent information available. A loss reserve is established for those matters for which the Corporation believes a loss is both probable and reasonably estimable. Once established, the reserve is adjusted as appropriate to reflect any subsequent developments. Actual losses with respect to any such matter may be more or less than the amount estimated by the Corporation. For matters where a loss is not probable, or the amount of the loss cannot be reasonably estimated by the Corporation, no loss reserve is established. In addition, from time to time, the Corporation is involved in investigations or other forms of regulatory or governmental inquiry covering a range of possible issues and, in some cases, these may be part of similar reviews of the specified activities of other companies. These inquiries or investigations could lead to administrative, civil or criminal proceedings involving the Corporation, and could result in fines, penalties, restitution, other types of sanctions, or the need for the Corporation to undertake remedial actions, or to alter its business, financial or accounting practices. The Corporation's practice is to cooperate fully with regulatory and governmental inquiries and investigations. As of the date of this report, the Corporation believes that any liabilities, individually or in the aggregate, that may result from the final outcomes of pending legal proceedings, or regulatory or governmental inquiries or investigations, will not have a material adverse effect on the financial condition of the Corporation. However, legal proceedings, inquiries and investigations are often unpredictable, and it is possible that the ultimate resolution of any such matters, if unfavorable, may be material to the Corporation's results of operations in any future period, depending, in part, upon the size of the loss or liability imposed and the operating results for the period, and could have a material adverse effect on the Corporation's business. In addition, regardless of the ultimate outcome of any such legal proceeding, inquiry or investigation, any such matter could cause the Corporation to incur additional expenses, which could be significant, and possibly material, to the Corporation's results of operations in any future period.

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Borrowings	Borrowings On March 16, 2022, $65.0 million of senior notes with a fixed rate of 3.60% were repaid upon their maturity. The Corporation owned all of the common stock of the Columbia Bancorp Statutory Trust, Columbia Bancorp Statutory Trust II and Columbia Bancorp Statutory Trust III, each of which issued TruPS in conjunction with the Corporation issuing junior subordinated deferrable interest debentures to these trusts. In September 2022, the Corporation redeemed all of the outstanding junior subordinated deferrable interest debentures issued to these trusts, totaling approximately $17.2 million, and these trusts redeemed all of the outstanding TruPS in a like amount, after which the subsidiary trusts were canceled.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net Income	$ 79,607	$ 69,989	$ 147,920	$ 134,277

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	6 Months Ended
	Jun. 30, 2023 shares	Jun. 30, 2023 shares
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Terminated	false
Curtis J. Myers [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		Curtis J. Myers, Chairman of the Board, Chief Executive Officer and President of the Corporation, terminated a Rule 10b5-1 trading arrangement for the sale of 14,951 shares of the Corporation's common stock on April 27, 2023. Mr. Myers adopted the trading arrangement on November 8, 2022 and the trading arrangement was scheduled to expire on May 3, 2023.
Name	Curtis J. Myers
Title	Chief Executive Officer
Adoption Date	November 8, 2022
Rule 10b5-1 Arrangement Terminated	true
Termination Date	April 27, 2023
Aggregate Available	14,951	14,951

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited Consolidated Financial Statements of the Corporation have been prepared in conformity with GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities as of the date of the financial statements as well as revenues and expenses during the period. Actual results could differ from those estimates. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the notes thereto included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2022. Operating results for the three and six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. The Corporation evaluates subsequent events through the date of filing of this Form 10-Q with the SEC. Significant Accounting Policies: The significant accounting policies used in preparation of the Consolidated Financial Statements are disclosed in the Corporation's 2022 Annual Report on Form 10-K. Those significant accounting policies are unchanged at June 30, 2023 except for the following: Effective January 1, 2023, the Corporation adopted ASU 2022-02 Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"), which updated the guidance on modifications to financing receivables by effectively replacing the concept of troubled debt restructurings with a new concept, loan modifications to borrowers experiencing financial difficulty. See Note 5 for further detail. Below is a summary of the policy surrounding loan modifications to borrowers experiencing financial difficulty. A loan modified for a borrower experiencing financial difficulty includes one or more of the following concessions: a reduction of the stated interest rate of the loan, an extension of the term or amortization period of the loan, a more than insignificant payment delay or principal forgiveness of the loan. Because the effect of most modifications made to borrowers experiencing financial difficulty is already included in the ACL, a change to the ACL is generally not recorded upon modification. When principal forgiveness is provided, the amortized cost basis of the forgiven portion of the loan is written off against the ACL. The amount of the principal forgiveness is deemed to be uncollectible; therefore, that portion of the loan is written off, resulting in a reduction of the amortized cost basis of the loan and a corresponding adjustment to the ACL.
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards In March 2022, FASB issued ASU 2022-01 Derivatives and Hedging (Topic 815): Fair Value Hedging – Portfolio Layer Method ("ASU 2022-01") . This update addresses questions regarding the last-of-layer method arising from the issuance of ASU 2017-12 and permits more flexibility in hedging interest rate risk for both variable-rate and fixed-rate financial instruments and introduces the ability to hedge risk components for non-financial hedges. The Corporation adopted ASU 2022-01 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In March 2022, FASB issued ASU 2022-02. This update reduces the complexity of accounting for TDRs by eliminating certain accounting guidance, enhancing disclosures and improving the consistency of vintage disclosures. The Corporation adopted ASU 2022-02 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In September 2022, FASB issued ASU 2022-04 Liabilities - Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations ("ASU 2022-04"). This update enhances transparency in the disclosure of supplier finance programs, which previously had no explicit requirements under GAAP. The Corporation adopted ASU 2022-04 on January 1, 2023 and it did not have a material impact on its consolidated financial statements. In December 2022, FASB issued ASU 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. This update extends the sunset provision date of ASU 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04") to December 31, 2024 . The Corporation will adopt ASU 2020-04 on January 1, 2025. The Corporation does not expect the adoption of ASU 2020-04 to have a material impact on its consolidated financial statements. In March 2023, FASB issued ASU 2023-02 Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method ("ASU 2023-02") . This update allows any tax credit program that meets certain criteria to use the proportional amortization method. The Corporation early adopted ASU 2023-02 using the modified retrospective method effective upon issuance, and it did not have a material impact on its consolidated financial statements. Recently Issued Accounting Standards In June 2022, FASB issued ASU 2022-03 Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions ("ASU 2022-03"). This update clarifies how the fair value of equity securities subject to contractual sale restrictions is determined and requires additional qualitative and quantitative disclosures for equity securities with contractual sale restrictions. The Corporation will adopt ASU 2022-03 on January 1, 2024. The Corporation does not expect the adoption of ASU 2022-03 to have a material impact on its consolidated financial statements. In March 2023, FASB issued ASU 2023-01 Leases (Topic 842): Common Control Arrangements ("ASU 2023-01"). This update clarifies guidance for leases between related parties under common control . The Corporation will adopt ASU 2023-01 on January 1, 2024. The Corporation does not expect the adoption of ASU 2023-01 to have a material impact on its consolidated financial statements.
Reclassifications	ReclassificationsCertain amounts in the 2022 consolidated financial statements and notes have been reclassified to conform to the 2023 presentation.

Business Combinations and Asset

Business Combinations and Asset Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Schedule of Acquisitions	The following table summarizes the consideration transferred and the fair values of identifiable assets acquired and liabilities assumed on July 1, 2022: Fair Value (dollars in thousands, except share data) Consideration transferred: Common stock shares issued (6,208,516) $ 89,713 Cash paid to Prudential Bancorp shareholders 29,343 Value of consideration 119,056 Assets acquired: Cash and due from banks 7,533 Investment securities 287,126 Loans 554,091 Premises and equipment 8,574 Other assets 73,303 Total assets 930,627 Liabilities assumed: Deposits 532,170 Borrowings (1) 284,000 Other liabilities 14,482 Total liabilities 830,652 Net assets acquired: 99,975 Goodwill resulting from the Merger $ 19,081 (1) Included a $30.5 million intercompany borrowing between Prudential Bank and Fulton Bank. The following table presents information with respect to the fair value and unpaid principal balance of acquired loans and leases at the date of the Merger: July 1, 2022 Unpaid Principal Balance Fair Value (dollars in thousands) Real estate - commercial mortgage $ 224,904 $ 216,593 Commercial and industrial 63,560 61,873 Real-estate - residential mortgage 177,327 169,098 Real-estate - home equity 6,034 5,812 Real-estate - construction 98,963 98,546 Consumer 2,306 2,286 Total acquired loans $ 573,094 $ 554,208 The following table presents the carrying amount of loans for which, at the date of Merger, there was evidence of more than insignificant deterioration of credit quality since origination: July 1, 2022 (dollars in thousands) Book balance of loans with deteriorated credit quality at acquisition $ 27,057 Allowance for credit losses at acquisition (1,135) Non-credit related discount (130) Total purchased credit deteriorated loans $ 25,792
Schedule of Goodwill	The following table presents the change in goodwill during the six months ended June 30, 2023: June 30 2023 (dollars in thousands) Goodwill at December 31, 2022 $ 550,539 Adjustments to goodwill from the Merger 2,807 Goodwill at June 30, 2023 $ 553,346
Pro Forma Income Statement	The table below presents the pro forma results of the operations of the combined institutions as if the Merger occurred on January 1, 2022. The pro forma income statement adjustments are limited to the effects of fair value mark amortization and accretion and intangible asset amortization and do not consider future cost savings the Corporation expects to achieve subsequent to the merger of Prudential Bank with and into the Bank. Six months ended June 30 2023 2022 (dollars in thousands) Net interest income $ 428,439 $ 357,410 Provision for credit losses 34,291 (225) Net Interest Income After Provision for Credit Losses 394,148 357,635 Total noninterest income 112,339 118,571 Total noninterest expenses 327,636 324,182 Income Before Income Taxes 178,851 152,024 Income tax expense 30,931 26,468 Net Income $ 147,920 $ 125,556

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Values of Investment Securities	The following table presents the amortized cost and estimated fair values of investment securities for the periods presented: June 30, 2023 Amortized Gross Gross Estimated Available for Sale (dollars in thousands) U.S. Government securities $ 225,542 $ — $ (4,904) $ 220,638 U.S. Government-sponsored agency securities 1,044 — (45) 999 State and municipal securities 1,206,102 252 (152,446) 1,053,908 Corporate debt securities 474,953 — (50,574) 424,379 Collateralized mortgage obligations 134,234 — (13,776) 120,458 Residential mortgage-backed securities 233,807 4 (28,923) 204,888 Commercial mortgage-backed securities 640,928 — (93,477) 547,451 Total $ 2,916,610 $ 256 $ (344,145) $ 2,572,721 Held to Maturity Residential mortgage-backed securities $ 431,704 $ — $ (56,114) $ 375,590 Commercial mortgage-backed securities 862,909 — (151,807) 711,102 Total $ 1,294,613 $ — $ (207,921) $ 1,086,692 December 31, 2022 Amortized Gross Gross Estimated Available for Sale (dollars in thousands) U.S. Government securities $ 226,140 $ — $ (7,655) $ 218,485 U.S. Government sponsored agency securities 1,050 — (42) 1,008 State and municipal securities 1,284,245 283 (178,816) 1,105,712 Corporate debt securities 459,792 — (37,483) 422,309 Collateralized mortgage obligations 147,155 — (13,122) 134,033 Residential mortgage-backed securities 242,527 18 (29,847) 212,698 Commercial mortgage-backed securities 631,604 — (79,082) 552,522 Total $ 2,992,513 $ 301 $ (346,047) $ 2,646,767 Held to Maturity Residential mortgage-backed securities $ 457,325 $ — $ (57,480) $ 399,845 Commercial mortgage-backed securities 863,931 — (138,727) 725,204 Total $ 1,321,256 $ — $ (196,207) $ 1,125,049
Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturities	The amortized cost and estimated fair values of debt securities as of June 30, 2023, by contractual maturity, are shown in the following table. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay with or without call or prepayment penalties. June 30, 2023 Available for Sale Held to Maturity Amortized Estimated Amortized Estimated (dollars in thousands) Due in one year or less $ 234,224 $ 229,237 $ — $ — Due from one year to five years 90,789 87,328 — — Due from five years to ten years 545,358 494,049 — — Due after ten years 1,037,270 889,310 — — 1,907,641 1,699,924 — — Residential mortgage-backed securities (1) 233,807 204,888 431,704 375,590 Commercial mortgage-backed securities (1) 640,928 547,451 862,909 711,102 Collateralized mortgage obligations (1) 134,234 120,458 — — Total $ 2,916,610 $ 2,572,721 $ 1,294,613 $ 1,086,692
Summary of Gains and Losses from Equity and Debt Securities, and Losses Recognized from Other-than-Temporary Impairment	The following table presents information related to gross realized gains and losses on the sales of securities for the periods presented: Gross Realized Gains Gross Realized Losses Net Gains (Losses) Three months ended (dollars in thousands) June 30, 2023 $ — $ (4) $ (4) June 30, 2022 8 — 8 Six months ended June 30, 2023 $ 283 $ (264) $ 19 June 30, 2022 1,554 (1,527) 27
Gross Unrealized Losses and Fair Values of Investments by Category and Length of Time in Continuous Unrealized Loss Position	The following tables present the gross unrealized losses and estimated fair values of investment securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position for the periods presented: June 30, 2023 Less than 12 months 12 months or longer Total Number of Securities Estimated Unrealized Number of Securities Estimated Unrealized Estimated Unrealized Available for Sale (dollars in thousands) U.S. Government securities — $ — $ — 3 $ 220,638 $ (4,904) $ 220,638 $ (4,904) U.S. Government-sponsored agency securities 1 999 (45) — — — 999 (45) State and municipal securities 72 156,269 (3,092) 302 869,492 (149,354) 1,025,761 (152,446) Corporate debt securities 29 132,631 (11,734) 42 288,993 (38,840) 421,624 (50,574) Collateralized mortgage obligations 27 19,500 (1,543) 67 100,958 (12,233) 120,458 (13,776) Residential mortgage-backed securities 66 57,495 (3,864) 29 146,358 (25,059) 203,853 (28,923) Commercial mortgage-backed securities 61 86,631 (4,343) 75 460,820 (89,134) 547,451 (93,477) Total available for sale 256 $ 453,525 $ (24,621) 518 $ 2,087,259 $ (319,524) $ 2,540,784 $ (344,145) Held to Maturity Residential mortgage-backed securities 99 $ 221,910 $ (14,592) 21 $ 153,680 $ (41,522) $ 375,590 $ (56,114) Commercial mortgage-backed securities 18 237,317 (22,707) 42 473,785 (129,100) 711,102 (151,807) Total held to maturity 117 $ 459,227 $ (37,299) 63 $ 627,465 $ (170,622) $ 1,086,692 $ (207,921) December 31, 2022 Less than 12 months 12 months or longer Total Number of Securities Estimated Unrealized Number of Securities Estimated Unrealized Estimated Unrealized Available for Sale (dollars in thousands) U.S. Government Securities 1 $ 96,906 $ (2,814) 2 $ 121,579 $ (4,841) $ 218,485 $ (7,655) U.S. Government sponsored agency securities 1 1,008 (42) — — — 1,008 (42) State and municipal securities 360 995,122 (157,397) 29 61,089 (21,419) 1,056,211 (178,816) Corporate debt securities 66 376,398 (31,333) 6 37,157 (6,150) 413,555 (37,483) Collateralized mortgage obligations 96 113,191 (7,650) 1 20,842 (5,472) 134,033 (13,122) Residential mortgage-backed securities 81 154,861 (18,301) 5 55,293 (11,546) 210,154 (29,847) Commercial mortgage-backed securities 114 371,109 (38,845) 20 181,413 (40,237) 552,522 (79,082) Total available for sale 719 $ 2,108,595 $ (256,382) 63 $ 477,373 $ (89,665) $ 2,585,968 $ (346,047) Held to Maturity Residential mortgage-backed securities 106 $ 246,667 $ (14,275) 14 $ 153,178 $ (43,205) $ 399,845 $ (57,480) Commercial mortgage-backed securities 21 258,255 (24,029) 39 466,949 (114,698) 725,204 (138,727) Total held to maturity 127 $ 504,922 $ (38,304) 53 $ 620,127 $ (157,903) $ 1,125,049 $ (196,207)

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Summary of Gross Loans by Type	Loans and leases, net of unearned income, are summarized as follows: June 30, December 31, 2022 (dollars in thousands) Real estate - commercial mortgage $ 7,846,861 $ 7,693,835 Commercial and industrial 4,602,446 4,477,537 Real-estate - residential mortgage 5,147,262 4,737,279 Real-estate - home equity 1,061,891 1,102,838 Real-estate - construction 1,308,564 1,269,925 Consumer 763,530 699,179 Leases and other loans 346,015 328,331 Gross loans 21,076,569 20,308,924 Unearned income (31,884) (29,377) Net loans $ 21,044,685 $ 20,279,547
Schedule of Allowance for Credit Losses	: June 30, December 31, (dollars in thousands) ACL - loans $ 287,442 $ 269,366 Reserve for OBS credit exposures (1) $ 16,568 $ 16,328 (1) Included in other liabilities on the consolidated balance sheets.
Activity in the Allowance for Credit Losses	: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Balance at beginning of period $ 278,695 $ 243,705 $ 269,366 $ 249,001 Loans charged off (4,787) (1,618) (21,690) (3,518) Recoveries of loans previously charged off 2,816 5,367 5,715 8,321 Net loans (charged off) recovered (1,971) 3,749 (15,975) 4,803 Provision for credit losses (1) 10,718 1,110 34,051 (5,240) Balance at end of period $ 287,442 $ 248,564 $ 287,442 $ 248,564 Provision for OBS credit exposures $ (971) $ 390 $ 240 $ (210) Reserve for OBS credit exposures $ 16,568 $ 14,323 $ 16,568 $ 14,323 (1) Provision included in the table only includes the portion related to net loans. The following table presents the activity in the ACL by portfolio segment: Real Estate Commercial and Real Estate Residential Consumer and Home Real Estate Leases and other loans Total (dollars in thousands) Three months ended June 30, 2023 Balance at March 31, 2023 $ 66,256 $ 77,126 $ 86,209 $ 27,303 $ 11,646 $ 10,155 $ 278,695 Loans charged off (230) (2,017) (62) (1,313) — (1,165) (4,787) Recoveries of loans previously charged off 29 988 58 959 569 213 2,816 Net loans (charged off) recovered (201) (1,029) (4) (354) 569 (952) (1,971) Provision for loan losses (1) 6,247 (908) 2,644 2,033 (1,071) 1,773 10,718 Balance at June 30, 2023 $ 72,302 $ 75,189 $ 88,849 $ 28,982 $ 11,144 $ 10,976 $ 287,442 Three months ended June 30, 2022 Balance at March 31, 2022 $ 79,853 $ 66,511 $ 55,892 $ 20,213 $ 13,303 $ 7,933 $ 243,705 Loans charged off — (201) (66) (877) — (474) (1,618) Recoveries of loans previously charged off 3,536 739 92 762 12 226 5,367 Net loans (charged off) recovered 3,536 538 26 (115) 12 (248) 3,749 Provision for loan and lease losses (1) (10,784) 5,070 5,717 2,982 (2,687) 812 1,110 Balance at June 30, 2022 $ 72,605 $ 72,119 $ 61,635 $ 23,080 $ 10,628 $ 8,497 $ 248,564 Six months ended June 30, 2023 Balance at December 31, 2022 $ 69,456 $ 70,116 $ 83,250 $ 26,429 $ 10,743 $ 9,372 $ 269,366 Loans charged off (13,592) (2,629) (62) (3,519) — (1,888) (21,690) Recoveries of loans previously charged off 815 2,074 106 1,620 771 329 5,715 Net loans (charged off) recovered (12,777) (555) 44 (1,899) 771 (1,559) (15,975) Provision for loan losses (1) 15,623 5,628 5,555 4,452 (370) 3,163 34,051 Balance at June 30, 2023 $ 72,302 $ 75,189 $ 88,849 $ 28,982 $ 11,144 $ 10,976 $ 287,442 Six months ended June 30, 2022 Balance at December 31, 2021 $ 87,970 $ 67,056 $ 54,236 $ 19,749 $ 12,941 $ 7,049 $ 249,001 Loans charged off (152) (428) (66) (1,929) — (943) (3,518) Recoveries of loans previously charged off 3,648 2,719 314 1,216 44 380 8,321 Net loans (charged off) recovered 3,496 2,291 248 (713) 44 (563) 4,803 Provision for loan losses (1) (18,861) 2,772 7,151 4,044 (2,357) 2,011 (5,240) Balance at June 30, 2022 $ 72,605 $ 72,119 $ 61,635 $ 23,080 $ 10,628 $ 8,497 $ 248,564 (1)
Total Impaired Loans by Class Segment	The following table presents total non-accrual loans, by class segment: June 30, 2023 December 31, 2022 With a Related Allowance Without a Related Allowance Total With a Related Allowance Without a Related Allowance Total (dollars in thousands) Real estate - commercial mortgage $ 19,727 $ 34,088 $ 53,815 $ 39,722 $ 30,439 $ 70,161 Commercial and industrial 17,420 12,068 29,488 14,804 12,312 27,116 Real estate - residential mortgage 19,675 2,025 21,700 25,315 979 26,294 Real estate - home equity 5,711 116 5,827 5,975 130 6,105 Real estate - construction 707 392 1,099 866 502 1,368 Consumer 17 — 17 92 — 92 Leases and other loans 9,264 2,070 11,334 4,052 9,255 13,307 $ 72,521 $ 50,759 $ 123,280 $ 90,826 $ 53,617 $ 144,443
Financing Receivable Credit Quality Indicators	The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the current period: June 30, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (in thousands) Amortized Amortized 2023 2022 2021 2020 2019 Prior Cost Basis Cost Basis Total Real estate - commercial mortgage Pass $ 436,213 $ 1,014,277 $ 1,079,313 $ 931,445 $ 761,840 $ 3,044,060 $ 98,737 $ 3,912 $ 7,369,797 Special Mention — 17,541 70,283 17,725 38,372 149,434 1,012 — 294,367 Substandard or Lower 202 4,889 25,184 45,196 25,257 81,489 480 — 182,697 Total real estate - commercial mortgage 436,415 1,036,707 1,174,780 994,366 825,469 3,274,983 100,229 3,912 7,846,861 Real estate - commercial mortgage Current period gross charge-offs — — — — — (30) — (13,562) (13,592) Commercial and industrial (1) Pass 461,413 652,086 425,486 365,676 292,754 706,510 1,432,210 9,051 4,345,186 Special Mention 392 16,804 11,786 5,392 3,522 16,458 60,230 748 115,332 Substandard or Lower 205 3,221 1,780 3,063 19,248 29,342 84,059 1,010 141,928 Total commercial and industrial 462,010 672,111 439,052 374,131 315,524 752,310 1,576,499 10,809 4,602,446 Commercial and industrial (1) Current period gross charge-offs — — — — — — (502) (2,127) (2,629) Real estate - construction (2) Pass 103,193 218,294 432,924 127,131 18,815 88,431 17,480 — 1,006,268 Special Mention — 26 262 28,037 — 11,263 — — 39,588 Substandard or Lower — 473 — — 2,202 23,259 2,408 — 28,342 Total real estate - construction 103,193 218,793 433,186 155,168 21,017 122,953 19,888 — 1,074,198 Real estate - construction (2) Current period gross charge-offs — — — — — — — — — Total Pass $ 1,000,819 $ 1,884,657 $ 1,937,723 $ 1,424,252 $ 1,073,409 $ 3,839,001 $ 1,548,427 $ 12,963 $ 12,721,251 Special Mention 392 34,371 82,331 51,154 41,894 177,155 61,242 748 449,287 Substandard or Lower 407 8,583 26,964 48,259 46,707 134,090 86,947 1,010 352,967 Total $ 1,001,618 $ 1,927,611 $ 2,047,018 $ 1,523,665 $ 1,162,010 $ 4,150,246 $ 1,696,616 $ 14,721 $ 13,523,505 (1) Loans originated in 2021 and 2020 include $9.8 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government guaranty through the SBA. (2) Excludes real estate - construction - other. The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the prior period: December 31, 2022 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2022 2021 2020 2019 2018 Prior Cost Basis Cost Basis Total Real estate - commercial mortgage Pass $ 1,014,575 $ 1,095,725 $ 969,118 $ 810,850 $ 621,689 $ 2,610,511 $ 80,665 $ 307 $ 7,203,440 Special Mention 95 50,367 23,296 33,735 16,205 181,736 947 — 306,381 Substandard or Lower 1,032 3,039 31,042 38,378 23,112 87,168 243 — 184,014 Total real estate - commercial mortgage 1,015,702 1,149,131 1,023,456 882,963 661,006 2,879,415 81,855 307 7,693,835 Real estate - commercial mortgage Current period gross charge-offs — — — — — (53) — (12,420) (12,473) Commercial and industrial (1) Pass 907,390 449,145 397,881 315,605 185,096 604,352 1,387,961 618 4,248,048 Special Mention 11,405 24,479 3,763 8,147 5,218 24,633 56,048 250 133,943 Substandard or Lower 834 418 4,818 13,044 3,081 22,025 51,077 249 95,546 Total commercial and industrial 919,629 474,042 406,462 336,796 193,395 651,010 1,495,086 1,117 4,477,537 Commercial and industrial (1) Current period gross charge-offs — — (36) — (21) (365) (1,192) (776) (2,390) Real estate - construction (2) Pass 159,195 390,993 243,406 28,539 24,421 93,511 47,271 — 987,336 Special Mention — — — — — 21,603 — — 21,603 Substandard or Lower — — 3,852 2,274 — 4,272 203 — 10,601 Total real estate - construction 159,195 390,993 247,258 30,813 24,421 119,386 47,474 — 1,019,540 Real estate - construction (2) Current period gross charge-offs — — — — — — — — — Total Pass $ 2,081,160 $ 1,935,863 $ 1,610,405 $ 1,154,994 $ 831,206 $ 3,308,374 $ 1,515,897 $ 925 $ 12,438,824 Special Mention 11,500 74,846 27,059 41,882 21,423 227,972 56,995 250 461,927 Substandard or Lower 1,866 3,457 39,712 53,696 26,193 113,465 51,523 249 290,161 Total $ 2,094,526 $ 2,014,166 $ 1,677,176 $ 1,250,572 $ 878,822 $ 3,649,811 $ 1,624,415 $ 1,424 $ 13,190,912 (1) Loans originated in 2021 and 2020 include $20.4 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government guaranty through the SBA. (2) Excludes real estate - construction - other. June 30, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2023 2022 2021 2020 2019 Prior Cost Basis Cost Basis Total Real estate - residential mortgage Performing $ 413,908 $ 1,030,693 $ 1,715,214 $ 1,020,426 $ 276,538 $ 651,744 $ — $ — $ 5,108,523 Nonperforming — 658 4,680 4,650 5,239 23,512 — — 38,739 Total real estate - residential mortgage 413,908 1,031,351 1,719,894 1,025,076 281,777 675,256 — — 5,147,262 Real estate - residential mortgage Current period gross charge-offs — — — — — — — (62) (62) Consumer and real estate - home equity Performing 169,479 309,613 94,775 66,026 49,842 284,430 814,043 26,745 1,814,953 Nonperforming 60 403 516 418 66 5,301 1,393 2,311 10,468 Total consumer and real estate - home equity 169,539 310,016 95,291 66,444 49,908 289,731 815,436 29,056 1,825,421 Consumer and real estate - home equity Current period gross charge-offs — — — — — (374) — (3,145) (3,519) Leases and other loans Performing 99,355 94,583 33,981 29,249 22,671 22,958 — — 302,797 Nonperforming — — — — — 11,334 — — 11,334 Leases and other loans 99,355 94,583 33,981 29,249 22,671 34,292 — — 314,131 Leases and other loans Current period gross charge-offs (214) (401) (133) (72) (52) (417) — (599) (1,888) Construction - other Performing 31,781 173,436 25,814 3,335 — — — — 234,366 Nonperforming — — — — — — — — — Total construction - other 31,781 173,436 25,814 3,335 — — — — 234,366 Construction - other Current period gross charge-offs — — — — — — — — — Total Performing $ 714,523 $ 1,608,325 $ 1,869,784 $ 1,119,036 $ 349,051 $ 959,132 $ 814,043 $ 26,745 $ 7,460,639 Nonperforming 60 1,061 5,196 5,068 5,305 40,147 1,393 2,311 60,541 Total $ 714,583 $ 1,609,386 $ 1,874,980 $ 1,124,104 $ 354,356 $ 999,279 $ 815,436 $ 29,056 $ 7,521,180 December 31, 2022 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Revolving Loans converted to Term Loans (dollars in thousands) Amortized Amortized 2022 2021 2020 2019 2018 Prior Cost Basis Cost Basis Total Real estate - residential mortgage Performing $ 933,903 $ 1,708,703 $ 1,054,126 $ 286,167 $ 87,455 $ 620,416 $ — $ — $ 4,690,770 Nonperforming 1,199 5,104 6,597 6,466 4,587 22,556 — — 46,509 Total real estate - residential mortgage 935,102 1,713,807 1,060,723 292,633 92,042 642,972 — — 4,737,279 Real estate - residential mortgage Current period gross charge-offs — — — — — — — (66) (66) Consumer and Real estate - home equity Performing 416,631 109,724 80,422 52,384 45,642 211,127 842,226 34,061 1,792,217 Nonperforming 292 298 174 36 98 6,512 1,722 668 9,800 Total consumer and real estate - home equity 416,923 110,022 80,596 52,420 45,740 217,639 843,948 34,729 1,802,017 Consumer and Real estate - home equity Current period gross charge-offs — (587) (70) (108) (16) (442) (178) (3,011) (4,412) Construction - other Performing 164,924 73,492 10,892 — 1,077 — — — 250,385 Nonperforming — — — — — — — — — Total construction - other 164,924 73,492 10,892 — 1,077 — — — 250,385 Construction - other Current period gross charge-offs — — — — — — — — — Leases and other loans Performing 146,198 39,427 40,024 29,309 15,019 15,670 — — 285,647 Nonperforming — — — — — 13,307 — — 13,307 Leases and other loans 146,198 39,427 40,024 29,309 15,019 28,977 — — 298,954 Leases and other loans Current period gross charge-offs (506) (167) (140) (80) (47) (1,191) — — (2,131) Total Performing $ 1,661,656 $ 1,931,346 $ 1,185,464 $ 367,860 $ 149,193 $ 847,213 $ 842,226 $ 34,061 $ 7,019,019 Nonperforming 1,491 5,402 6,771 6,502 4,685 42,375 1,722 668 69,616 Total $ 1,663,147 $ 1,936,748 $ 1,192,235 $ 374,362 $ 153,878 $ 889,588 $ 843,948 $ 34,729 $ 7,088,635
Non-Performing Assets	The following table presents non-performing assets: June 30, December 31, (dollars in thousands) Non-accrual loans $ 123,280 $ 144,443 Loans 90 days or more past due and still accruing (1) 24,415 27,463 Total non-performing loans 147,695 171,906 OREO (2) 3,881 5,790 Total non-performing assets $ 151,576 $ 177,696 (1) Excludes PPP loans which are fully guaranteed by the federal government of $1.0 million and $7.7 million as of June 30, 2023 and December 31, 2022, respectively. (2) Excludes $8.4 million and $6.0 million of residential mortgage properties for which formal foreclosure proceedings were in process as of June 30, 2023 and December 31, 2022, respectively.
Past due Loan Status and Non-Accrual Loans by Portfolio Segment	The following tables present the aging of the amortized cost basis of loans, by class segment: 30-59 60-89 ≥ 90 Days Days Past Days Past Past Due Non- Due Due and Accruing Accrual Current Total (dollars in thousands) June 30, 2023 Real estate – commercial mortgage $ 6,566 $ 2,671 $ 1,233 $ 53,815 $ 7,782,576 $ 7,846,861 Commercial and industrial (1) 3,542 1,977 1,100 29,488 4,566,339 4,602,446 Real estate – residential mortgage 35,456 6,017 17,457 21,700 5,066,632 5,147,262 Real estate – home equity 5,865 1,567 3,902 5,827 1,044,730 1,061,891 Real estate – construction 1,719 — — 1,099 1,305,746 1,308,564 Consumer 6,482 1,382 723 17 754,926 763,530 Leases and other loans (2) 462 375 — 11,334 301,960 314,131 Total $ 60,092 $ 13,989 $ 24,415 $ 123,280 $ 20,822,909 $ 21,044,685 (1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.0 million and $1.0 million, respectively, which are fully guaranteed by the federal government and are classified as current. (2) Includes unearned income. 30-59 Days Past 60-89 ≥ 90 Days Non- Current Total (dollars in thousands) December 31, 2022 Real estate – commercial mortgage $ 10,753 $ 4,644 $ 2,473 $ 70,161 $ 7,605,804 $ 7,693,835 Commercial and industrial (1) 6,067 2,289 1,172 27,116 4,440,893 4,477,537 Real estate – residential mortgage 57,061 8,209 20,215 26,294 4,625,500 4,737,279 Real estate – home equity 5,666 2,444 2,704 6,105 1,085,919 1,102,838 Real estate – construction 1,762 1,758 — 1,368 1,265,037 1,269,925 Consumer 6,692 1,339 899 92 690,157 699,179 Leases and other loans (2) 348 122 — 13,307 285,177 298,954 Total $ 88,349 $ 20,805 $ 27,463 $ 144,443 $ 19,998,487 $ 20,279,547 (1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.7 million and $7.7 million, respectively, which are fully guaranteed by the federal government and are classified as current. (2) Includes unearned income.
Financing Receivables, Loan Modifications	The following table presents the amortized cost basis during the three months and six months ended June 30, 2023 of the loans modified to borrowers experiencing financial difficulty, disaggregated by class of financing receivable and type of concession granted: Term Extension Three months ended June 30, 2023 Six months ended June 30, 2023 Amortization Cost Basis % of Class of Financing Receivable Amortization Cost Basis % of Class of Financing Receivable (dollars in thousands) Real estate - commercial mortgage $ 276 — % $ 1,478 0.02 % Commercial and industrial — — 75 — Real estate - residential mortgage 2,045 0.04 3,423 0.07 Total $ 2,321 $ 4,976 The following table presents the financial effect of the modifications made to borrowers experiencing financial difficulty for the three months and six months ended June 30, 2023: Term Extension Financial Effect Three months ended June 30, 2023 Real estate - commercial mortgage Added a weighted-average 1.25 years to the life of loans, which reduced monthly payment amounts for the borrowers. Real estate - residential mortgage Added a weighted-average 5.29 years to the life of loans, which reduced monthly payment amounts for the borrowers. Six months ended June 30, 2023 Real estate - commercial mortgage Added a weighted-average 2.05 years to the life of loans, which reduced monthly payment amounts for the borrowers. Commercial and industrial Added a weighted-average 2.88 years to the life of loans, which reduced monthly payment amounts for the borrowers. Real estate - residential mortgage Added a weighted-average 4.64 years to the life of loans, which reduced monthly payment amounts for the borrowers. The following table presents the performance of loans that have been modified in the last six months as of June 30, 2023. 30-89 90+ Total Days Past Past Due Past Current Due and Accruing Due (dollars in thousands) Real estate - commercial mortgage $ 1,478 $ — $ — $ — Commercial and industrial 75 — — — Real estate - residential mortgage 3,423 — — — Total $ 4,976 $ — $ — $ —

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	6 Months Ended
	Jun. 30, 2023
Transfers and Servicing [Abstract]
Summary of Changes in Mortgage Servicing Rights	The following table summarizes the changes in MSRs, which are included in other assets on the consolidated balance sheets, with adjustments to the carrying value included in mortgage banking income on the consolidated statements of income: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Amortized cost: Balance at beginning of period $ 33,082 $ 35,624 $ 34,217 $ 35,993 Originations of MSRs 688 1,053 884 2,407 Amortization (1,312) (1,428) (2,643) (3,151) Balance at end of period $ 32,458 $ 35,249 $ 32,458 $ 35,249 Valuation allowance: Balance at beginning of period $ — $ — $ — $ (600) Reduction (addition) to valuation allowance — — — 600 Balance at end of period $ — $ — $ — $ — Net MSRs at end of period $ 32,458 $ 35,249 $ 32,458 $ 35,249 Estimated fair value of MSRs at end of period $ 49,444 $ 49,804 $ 49,444 $ 49,804

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Notional Amounts and Fair Values of Derivative Financial Instruments	The following table presents a summary of the notional amounts and fair values of derivative financial instruments: June 30, 2023 December 31, 2022 Notional Asset Notional Asset (dollars in thousands) Interest Rate Locks with Customers Positive fair values $ 136,789 $ 465 $ 70,836 $ 182 Negative fair values 3,405 (11) 4,939 (51) Forward Commitments Positive fair values 36,500 399 — — Negative fair values — — 10,000 (147) Interest Rate Derivatives with Customers Positive fair values 410,749 5,655 171,317 3,337 Negative fair values 3,925,331 (283,189) 3,802,480 (280,401) Interest Rate Derivatives with Dealer Counterparties Positive fair values 3,925,331 167,164 3,802,480 161,956 Negative fair values 410,749 (6,022) 171,317 (3,703) Interest Rate Derivatives used in Cash Flow Hedges Positive fair values 200,000 396 600,000 1,321 Negative fair values 1,300,000 (2,002) 1,000,000 (12,163) Foreign Exchange Contracts with Customers Positive fair values 21,527 234 11,123 571 Negative fair values 20,839 (238) 3,672 (85) Foreign Exchange Contracts with Correspondent Banks Positive fair values 20,166 313 4,887 101 Negative fair values 5,397 (37) 8,280 (499)
Summary of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income	The following table presents the effect of fair value and cash flow hedge accounting on AOCI: Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included Component Amount of Gain (Loss) Recognized in OCI Excluded Component Location of Gain (Loss) Recognized from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included Component Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component (dollars in thousands) Derivatives in Cash Flow Hedging Relationships: Three months ended June 30, 2023 Interest Rate Products $ (7,251) $ (7,251) $ — Interest Income $ (7,032) $ (7,032) $ — Three months ended June 30, 2022 Interest Rate Products (11,100) (11,100) — Interest Income 434 434 — Six months ended June 30, 2023 Interest Rate Products 5,284 5,284 — Interest Income (14,189) (14,189) — Six months ended June 30, 2022 Interest Rate Products (51,663) (51,663) — Interest Income 2,382 2,382 — The following table presents the effect of fair value and cash flow hedge accounting on the income statement: Consolidated Statements of Income Classification Interest Income Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Total amounts of income line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (7,032) $ 434 $ (14,189) $ 2,382 Interest contracts: Amount of gain (loss) reclassified from AOCI into income (7,032) 434 (14,189) 2,382 Amount of gain or (loss) reclassified from AOCI into income as a result that a forecasted transaction is no longer probable of occurring — — — — Amount of gain (loss) reclassified from AOCI into income - included component (7,032) 434 (14,189) 2,382 Amount of gain (loss) reclassified from AOCI into income - excluded component — — — —
Summary of Fair Value Gains and Losses on Derivative Financial Instruments	The following table presents a summary of the net fair value gains (losses) on derivative financial instruments: Consolidated Statements of Income Classification Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Mortgage banking derivatives (1) Mortgage banking income $ 475 $ (2,095) $ 869 $ (1,710) Interest rate derivatives Other expense — — — — Foreign exchange contracts Other income 93 (6) 184 41 Net fair value gains/(losses) on derivative financial instruments $ 568 $ (2,101) $ 1,053 $ (1,669) (1) Includes interest rate locks with customers and forward commitments.
Summary of Corporation's Mortgage Loans Held for Sale	The following table presents a summary of mortgage loans held for sale and the impact of the fair value election on the consolidated financial statements as of the periods shown: June 30, December 31, (dollars in thousands) Amortized cost (1) $ 14,531 $ 7,180 Fair value 14,673 7,264 (1) Cost basis of mortgage loans held for sale represents the unpaid principal balance.
Summary of Offsetting Derivative Assets	The following table presents the Corporation's financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets: Gross Amounts Gross Amounts Not Offset Recognized on the Consolidated on the Balance Sheets Consolidated Financial Cash Net Balance Sheets Instruments (1) Collateral (2) Amount (dollars in thousands) June 30, 2023 Interest rate derivative assets $ 173,215 $ (9,022) $ — $ 164,193 Foreign exchange derivative assets with correspondent banks 313 (313) — — Total $ 173,528 $ (9,335) $ — $ 164,193 Interest rate derivative liabilities $ 291,213 $ (7,416) $ (118,789) $ 165,008 Foreign exchange derivative liabilities with correspondent banks 37 (313) — (276) Total $ 291,250 $ (7,729) $ (118,789) $ 164,732 December 31, 2022 Interest rate derivative assets $ 166,614 $ (8,071) $ — $ 158,543 Foreign exchange derivative assets with correspondent banks 101 (101) — — Total $ 166,715 $ (8,172) $ — $ 158,543 Interest rate derivative liabilities $ 296,267 $ (2,771) $ (127,638) $ 165,858 Foreign exchange derivative liabilities with correspondent banks 499 (101) — 398 Total $ 296,766 $ (2,872) $ (127,638) $ 166,256 (1) For interest rate derivative assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default. For interest rate derivative liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default. (2) Amounts represent cash collateral received from the counterparty or posted by the Corporation on interest rate derivative transactions and foreign exchange contracts with financial institution counterparties. Interest rate derivatives with customers are collateralized by the same collateral securing the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.
Summary of Offsetting Derivative Liabilities	The following table presents the Corporation's financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets: Gross Amounts Gross Amounts Not Offset Recognized on the Consolidated on the Balance Sheets Consolidated Financial Cash Net Balance Sheets Instruments (1) Collateral (2) Amount (dollars in thousands) June 30, 2023 Interest rate derivative assets $ 173,215 $ (9,022) $ — $ 164,193 Foreign exchange derivative assets with correspondent banks 313 (313) — — Total $ 173,528 $ (9,335) $ — $ 164,193 Interest rate derivative liabilities $ 291,213 $ (7,416) $ (118,789) $ 165,008 Foreign exchange derivative liabilities with correspondent banks 37 (313) — (276) Total $ 291,250 $ (7,729) $ (118,789) $ 164,732 December 31, 2022 Interest rate derivative assets $ 166,614 $ (8,071) $ — $ 158,543 Foreign exchange derivative assets with correspondent banks 101 (101) — — Total $ 166,715 $ (8,172) $ — $ 158,543 Interest rate derivative liabilities $ 296,267 $ (2,771) $ (127,638) $ 165,858 Foreign exchange derivative liabilities with correspondent banks 499 (101) — 398 Total $ 296,766 $ (2,872) $ (127,638) $ 166,256 (1) For interest rate derivative assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default. For interest rate derivative liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default. (2) Amounts represent cash collateral received from the counterparty or posted by the Corporation on interest rate derivative transactions and foreign exchange contracts with financial institution counterparties. Interest rate derivatives with customers are collateralized by the same collateral securing the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive (Loss) Income (Tables)	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Changes in other comprehensive income (loss)	The following table presents the components of other comprehensive income (loss): Before-Tax Amount Tax Effect Net of Tax Amount Three months ended June 30, 2023 (dollars in thousands) Net unrealized losses on securities $ (40,361) $ 9,142 $ (31,219) Reclassification adjustment for securities net change included in net income (1) (4) 1 (3) Amortization of net unrealized gains on AFS securities transferred to HTM (2) 1,941 (440) 1,501 Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (7,251) 1,665 (5,586) Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges (3) 7,032 (22) 7,010 Amortization of net unrecognized pension and postretirement items (4) 4 (1) 3 Total Other Comprehensive Loss $ (38,639) $ 10,345 $ (28,294) Three months ended June 30, 2022 Net unrealized losses on securities $ (114,312) $ 25,960 $ (88,352) Reclassification adjustment for securities net change included in net income (1) 8 (2) 6 Amortization of net unrealized gains on AFS securities transferred to HTM (2) (62,250) 14,137 (48,113) Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (11,100) 2,514 (8,586) Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges (3) (434) 99 (335) Amortization of net unrecognized pension and postretirement items (4) 33 (8) 25 Total Other Comprehensive Loss $ (188,055) $ 42,700 $ (145,355) Six months ended June 30, 2023 Unrealized gain on securities $ 1,838 $ (416) $ 1,422 Reclassification adjustment for securities net change included in net income (1) 18 (4) 14 Amortization of net unrealized gains on AFS securities transferred to HTM (2) 3,851 (872) 2,979 Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) 5,284 (17,690) (12,406) Reclassification adjustment for net change realized in net income on interest rate swaps used in cash flow hedges (3) 14,189 (36) 14,153 Amortization of net unrecognized pension and postretirement items (4) 36 (8) 28 Total Other Comprehensive Income $ 25,216 $ (19,026) $ 6,190 Six months ended June 30, 2022 Unrealized loss on securities $ (313,379) $ 71,168 $ (242,211) Reclassification adjustment for securities net change included in net income (1) 27 (6) 21 Amortization of net unrealized losses on AFS securities transferred to HTM (2) (61,686) 14,009 (47,677) Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges (3) (51,663) 11,701 (39,962) Reclassification adjustment for change realized in net income on interest rate swaps used in cash flow hedges (3) (2,382) 540 (1,842) Amortization of net unrecognized pension and postretirement items (4) 65 (15) 50 Total Other Comprehensive Loss $ (429,018) $ 97,397 $ (331,621) (1) Amounts reclassified out of AOCI. Before-tax amounts included in "Investment securities gains, net" on the Consolidated Statements of Income. See "Note 4 - Investment Securities," for additional details. (2) Amounts reclassified out of AOCI. Before-tax amounts included as a reduction to "Interest Income" on the Consolidated Statements of Income. (3) Tax effect includes reversal of interest rate derivatives used in cash flow hedges deferred tax benefit upon termination. (4) Amounts reclassified out of AOCI. Before-tax amounts included in "Salaries and employee benefits" on the Consolidated Statements of Income. See "Note 12 - Employee Benefit Plans," for additional details.
Changes in each component of accumulated other comprehensive income (loss)	The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax: Unrealized Gains (Losses) on Investment Securities Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges Unrecognized Pension and Postretirement Plan Income (Costs) Total (dollars in thousands) Three months ended June 30, 2023 Balance at March 31, 2023 $ (282,095) $ (61,453) $ (7,444) $ (350,992) OCI before reclassifications (31,219) (5,586) — (36,805) Amounts reclassified from AOCI (3) 7,010 3 7,010 Amortization of net unrealized gains on AFS securities transferred to HTM 1,501 — — 1,501 Balance at June 30, 2023 $ (311,816) $ (60,029) $ (7,441) $ (379,286) Three months ended June 30, 2022 Balance at March 31, 2022 $ (112,968) $ (37,699) $ (8,188) $ (158,855) OCI before reclassifications (88,352) (8,586) — (96,938) Amounts reclassified from AOCI 6 (335) 25 (304) Amortization of net unrealized losses on AFS securities transferred to HTM (48,113) — — (48,113) Balance at June 30, 2022 $ (249,427) $ (46,620) $ (8,163) $ (304,210) Six months ended June 30, 2023 Balance at December 31, 2022 $ (316,231) $ (61,776) $ (7,469) $ (385,476) OCI before reclassifications 1,422 (12,406) — (10,984) Amounts reclassified from AOCI 14 14,153 28 14,195 Amortization of net unrealized gains on AFS securities transferred to HTM 2,979 — — 2,979 Balance at June 30, 2023 $ (311,816) $ (60,029) $ (7,441) $ (379,286) Six months ended June 30, 2022 Balance at December 31, 2021 $ 40,440 $ (4,816) $ (8,213) $ 27,411 OCI before reclassifications (242,211) (39,962) — (282,173) Amounts reclassified from AOCI 21 (1,842) 50 (1,771) Amortization of net unrealized losses on AFS securities transferred to HTM (47,677) — — (47,677) Balance at June 30, 2022 $ (249,427) $ (46,620) $ (8,163) $ (304,210)

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present assets and liabilities measured at fair value on a recurring basis and reported on the consolidated balance sheets: June 30, 2023 Level 1 Level 2 Level 3 Total (dollars in thousands) Loans held for sale $ — $ 14,673 $ — $ 14,673 Available for sale investment securities: U.S. Government securities 220,638 — — 220,638 U.S. Government-sponsored agency securities — 999 — 999 State and municipal securities — 1,053,908 — 1,053,908 Corporate debt securities — 424,379 — 424,379 Collateralized mortgage obligations — 120,458 — 120,458 Residential mortgage-backed securities — 204,888 — 204,888 Commercial mortgage-backed securities — 547,451 — 547,451 Total available for sale investment securities 220,638 2,352,083 — 2,572,721 Other assets: Investments held in Rabbi Trust 28,046 — — 28,046 Derivative assets 547 174,079 — 174,626 Total assets $ 249,231 $ 2,540,835 $ — $ 2,790,066 Other liabilities: Deferred compensation liabilities $ 28,046 $ — $ — $ 28,046 Derivative liabilities 275 291,224 — 291,499 Total liabilities $ 28,321 $ 291,224 $ — $ 319,545 December 31, 2022 Level 1 Level 2 Level 3 Total (dollars in thousands) Loans held for sale $ — $ 7,264 $ — $ 7,264 Available for sale investment securities: U.S. Government securities 218,485 — — 218,485 U.S. Government sponsored agency securities — 1,008 — 1,008 State and municipal securities — 1,105,712 — 1,105,712 Corporate debt securities — 422,309 — 422,309 Collateralized mortgage obligations — 134,033 — 134,033 Residential mortgage-backed securities — 212,698 — 212,698 Commercial mortgage-backed securities — 552,522 — 552,522 Total available for sale investment securities 218,485 2,428,282 — 2,646,767 Other assets: Investments held in Rabbi Trust 23,435 — — 23,435 Derivative assets 672 166,796 — 167,468 Total assets $ 242,592 $ 2,602,342 $ — $ 2,844,934 Other liabilities: Deferred compensation liabilities $ 23,435 $ — $ — $ 23,435 Derivative liabilities 584 296,465 — 297,049 Total liabilities $ 24,019 $ 296,465 $ — $ 320,484
Schedule of Changes in Assets and Liabilities Measured at Fair Value on a Recurring Basis using Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis	The following table presents Level 3 financial assets measured at fair value on a nonrecurring basis: June 30, December 31, (dollars in thousands) Loans, net $ 103,567 $ 121,115 OREO 3,881 5,790 MSRs (1) 49,444 50,044 Total assets $ 156,892 $ 176,949 (1) Amounts shown are estimated fair value. MSRs are recorded on the Corporation's consolidated balance sheets at the lower of amortized cost or fair value. See "Note 6 - Mortgage Servicing Rights" for additional information.
Details of Book Value and Fair Value of Financial Instruments	The following tables detail the book values and the estimated fair values of the Corporation's financial instruments as of June 30, 2023 and December 31, 2022. June 30, 2023 Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 Total (dollars in thousands) FINANCIAL ASSETS Cash and cash equivalents $ 504,702 $ 504,702 $ — $ — $ 504,702 FRB and FHLB stock 124,218 — 124,218 — 124,218 Loans held for sale 14,673 — 14,673 — 14,673 AFS securities 2,572,721 220,638 2,352,083 — 2,572,721 HTM securities 1,294,613 — 1,086,692 — 1,086,692 Loans, net 20,757,243 — — 19,233,430 19,233,430 Accrued interest receivable 96,991 96,991 — — 96,991 Other assets 675,328 447,924 174,079 53,325 675,328 FINANCIAL LIABILITIES Demand and savings deposits $ 18,055,623 $ 18,055,623 $ — $ — $ 18,055,623 Brokered deposits 949,259 150,222 797,177 — 947,399 Time deposits 2,201,658 — 2,182,337 — 2,182,337 Accrued interest payable 24,101 24,101 — — 24,101 Federal funds purchased 555,000 555,003 — — 555,003 Federal Home Loan Bank advances 1,165,000 1,164,991 — — 1,164,991 Senior debt and subordinated debt 539,994 — 461,365 — 461,365 Other borrowings 459,120 458,087 1,010 — 459,097 Other liabilities 454,641 146,849 291,224 16,568 454,641 December 31, 2022 Estimated Fair Value Carrying Amount Level 1 Level 2 Level 3 Total (dollars in thousands) FINANCIAL ASSETS Cash and cash equivalents $ 681,921 $ 681,921 $ — $ — $ 681,921 FRB and FHLB stock 130,186 — 130,186 — 130,186 Loans held for sale 7,264 — 7,264 — 7,264 AFS securities 2,646,767 218,485 2,428,282 — 2,646,767 HTM securities 1,321,256 — 1,125,049 — 1,125,049 Loans, net 20,010,181 — — 18,862,701 18,862,701 Accrued interest receivable 91,579 91,579 — — 91,579 Other assets 642,049 419,419 166,796 55,834 642,049 FINANCIAL LIABILITIES Demand and savings deposits $ 18,851,912 $ 18,851,912 $ — $ — $ 18,851,912 Brokered deposits 208,416 188,416 25,085 — 213,501 Time deposits 1,589,210 — 1,574,747 — 1,574,747 Accrued interest payable 10,185 10,185 — — 10,185 Federal funds purchased 191,000 190,998 — — 190,998 Federal Home Loan Bank advances 1,250,000 1,249,629 — — 1,249,629 Senior debt and subordinated debt 539,634 — 456,867 — 456,867 Other borrowings 890,573 889,393 1,180 — 890,573 Other liabilities 467,705 154,912 296,465 16,328 467,705

Net Income Per Share (Tables)

Net Income Per Share (Tables)	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Reconciliation of Weighted Average Common Shares Outstanding	A reconciliation of weighted average shares outstanding used to calculate basic and diluted net income per share follows (in thousands, except per share data): Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 Weighted average shares outstanding (basic) 165,854 160,920 166,227 160,755 Impact of common stock equivalents 1,337 1,155 1,582 1,260 Weighted average shares outstanding (diluted) 167,191 162,075 167,809 162,015 Per share: Basic $ 0.46 $ 0.42 $ 0.86 $ 0.80 Diluted 0.46 0.42 0.85 0.80

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]
Summary of Compensation Expense and Related Tax Benefits	The following table presents compensation expense and the related tax benefits for equity awards recognized in the consolidated statements of income: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Compensation expense $ 2,571 $ 3,846 $ 4,240 $ 6,586 Tax benefit (565) (758) (927) (1,361) Total stock-based compensation, net of tax $ 2,006 $ 3,088 $ 3,313 $ 5,225

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2023
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures	The net periodic pension cost for the Pension Plan consisted of the following components: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Interest cost $ 855 $ 598 $ 1,711 $ 1,196 Expected return on plan assets (877) (1,099) (1,754) (2,197) Net amortization and deferral 80 164 161 327 Net periodic pension cost $ 58 $ (337) $ 118 $ (674) The components of the net benefit for the Postretirement Plan consisted of the following components: Three months ended June 30 Six months ended June 30 2023 2022 2023 2022 (dollars in thousands) Interest cost $ 13 $ 9 $ 26 $ 17 Net accretion and deferral (136) (131) (272) (262) Net periodic benefit $ (123) $ (122) $ (246) $ (245)

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Summary of Outstanding Commitments to Extend Credit and Letters of Credit	The following table presents the Corporation's commitments to extend credit and letters of credit: June 30, December 31, 2022 (dollars in thousands) Commitments to extend credit $ 8,963,903 $ 8,695,621 Standby letters of credit 259,063 260,829 Commercial letters of credit 53,816 49,288

Business Combinations - Narrati

Business Combinations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Jul. 01, 2022
Business Acquisition [Line Items]
Goodwill resulting from the Merger	$ 553,346	$ 553,346	$ 550,539
Prudential
Business Acquisition [Line Items]
Percent of outstanding common stock acquired				100%
Goodwill resulting from the Merger				$ 19,081
Consideration adjustments	$ (500)	$ 2,800

Business Combinations - Schedul

Business Combinations - Schedule of Consideration Transferred and Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jul. 01, 2022	Jun. 30, 2023	Dec. 31, 2022
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Goodwill resulting from the Merger		$ 553,346	$ 550,539
Prudential
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Common stock shares issued (6,208,516)	$ 89,713
Cash paid to Prudential Bancorp shareholders	29,343
Value of consideration	119,056
Cash and due from banks	7,533
Investment securities	287,126
Loans	554,091
Premises and equipment	8,574
Other assets	73,303
Total assets	930,627
Deposits	532,170
Borrowings(1)	284,000
Other liabilities	14,482
Total liabilities	830,652
Net assets acquired:	99,975
Goodwill resulting from the Merger	$ 19,081
Common shares issued (in shares)	6,208,516
Intercompany borrowing	$ 30,500

Business Combinations - Sched_2

Business Combinations - Schedule of Fair Value and Unpaid Principal Balance of Acquired Loans and Leases (Details) - Prudential $ in Thousands	Jul. 01, 2022 USD ($)
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	$ 573,094
Fair Value	554,208
Real estate - commercial mortgage
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	224,904
Fair Value	216,593
Commercial and Industrial
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	63,560
Fair Value	61,873
Real estate – residential mortgage
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	177,327
Fair Value	169,098
Real estate - home equity
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	6,034
Fair Value	5,812
Real-estate - construction
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	98,963
Fair Value	98,546
Consumer
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Unpaid Principal Balance	2,306
Fair Value	$ 2,286

Business Combinations - Carryin

Business Combinations - Carrying Amount of Loans on Acquisition Date (Details) - Prudential $ in Thousands	Jul. 01, 2022 USD ($)
Business Acquisition [Line Items]
Book balance of loans with deteriorated credit quality at acquisition	$ 27,057
Allowance for credit losses at acquisition	(1,135)
Non-credit related discount	(130)
Total purchased credit deteriorated loans	$ 25,792

Business Combinations - Goodwil

Business Combinations - Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 550,539
Goodwill, Ending Balance	553,346
Prudential
Goodwill [Roll Forward]
Adjustments to goodwill from the Merger	$ 2,807

Business Combinations - Income

Business Combinations - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Interest Income	$ 212,852	$ 178,831	$ 428,439	$ 340,141
Interest Income (Expense), after Provision for Loan Loss, Total	$ 203,105	$ 177,331	$ 394,148	$ 345,591

Business Combinations - Pro For

Business Combinations - Pro Forma Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Provision for credit losses	$ 9,747	$ 1,500	$ 34,291	$ (5,450)
Interest Income (Expense), after Provision for Loan Loss, Total	203,105	177,331	394,148	345,591
Total noninterest income	60,585	58,391	112,339	113,647
Total noninterest expenses	168,018	149,730	327,636	295,708
Income Before Income Taxes	95,672	85,992	178,851	163,530
Income tax expense	$ 16,065	$ 16,003	30,931	29,253
Prudential | Pro Forma
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net interest income			428,439	357,410
Provision for credit losses			34,291	(225)
Interest Income (Expense), after Provision for Loan Loss, Total			394,148	357,635
Total noninterest income			112,339	118,571
Total noninterest expenses			327,636	324,182
Income Before Income Taxes			178,851	152,024
Income tax expense			30,931	26,468
Net Income			$ 147,920	$ 125,556

Restrictions on Cash and Cash_2

Restrictions on Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Abstract]
Collateral	$ 11.5	$ 13.9

Investment Securities Schedule

Investment Securities Schedule of Amortized Cost and Fair Values of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Amortized Cost	$ 2,916,610
Gross Unrealized Gains	256
Gross Unrealized Losses	(344,145)
Estimated Fair Value	2,572,721	$ 2,646,767
Amortized Cost, Held to Maturity	1,294,613	1,321,256
Gross Unrealized Gains, Held to Maturity	0	0
Gross Unrealized Losses, Held to Maturity	(207,921)	(196,207)
Debt Securities, Held-to-Maturity, Fair Value	1,086,692	1,125,049
US Government Debt Securities
Schedule of Investments [Line Items]
Amortized Cost	225,542	226,140
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4,904)	(7,655)
Estimated Fair Value	220,638	218,485
US Government Agencies Debt Securities
Schedule of Investments [Line Items]
Amortized Cost	1,044	1,050
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(45)	(42)
Estimated Fair Value	999	1,008
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	1,206,102	1,284,245
Gross Unrealized Gains	252	283
Gross Unrealized Losses	(152,446)	(178,816)
Estimated Fair Value	1,053,908	1,105,712
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	474,953	459,792
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(50,574)	(37,483)
Estimated Fair Value	424,379	422,309
Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Amortized Cost	134,234	147,155
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(13,776)	(13,122)
Estimated Fair Value	120,458	134,033
Mortgage-Backed Securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	233,807	242,527
Gross Unrealized Gains	4	18
Gross Unrealized Losses	(28,923)	(29,847)
Estimated Fair Value	204,888	212,698
Amortized Cost, Held to Maturity	431,704	457,325
Gross Unrealized Gains, Held to Maturity	0	0
Gross Unrealized Losses, Held to Maturity	(56,114)	(57,480)
Debt Securities, Held-to-Maturity, Fair Value	375,590	399,845
Commercial Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	640,928	631,604
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(93,477)	(79,082)
Estimated Fair Value	547,451	552,522
Amortized Cost, Held to Maturity	862,909	863,931
Gross Unrealized Gains, Held to Maturity	0	0
Gross Unrealized Losses, Held to Maturity	(151,807)	(138,727)
Debt Securities, Held-to-Maturity, Fair Value	$ 711,102	725,204
Debt Securities [Member]
Schedule of Investments [Line Items]
Amortized Cost		2,992,513
Gross Unrealized Gains		301
Gross Unrealized Losses		(346,047)
Estimated Fair Value		$ 2,646,767

Investment Securities Schedul_2

Investment Securities Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortized Cost
Due in one year or less	$ 234,224
Due from one year to five years	90,789
Due from five years to ten years	545,358
Due after ten years	1,037,270
Amortized cost, before securities without debt maturities	1,907,641
Amortized Cost	2,916,610
Estimated Fair Value
Due in one year or less	229,237
Due from one year to five years	87,328
Due from five years to ten years	494,049
Due after ten years	889,310
Available for sale securities, debt maturities, before securities without single maturities	1,699,924
Estimated Fair Value	2,572,721	$ 2,646,767
Amortized Cost
Due in one year or less	0
Due from one year to five years	0
Due from five years to ten years	0
Due after ten years	0
Debt securities, held-to-maturity, maturity, allocated and single maturity date, amortized cost, total	0
Amortized Cost, Held to Maturity	1,294,613	1,321,256
Estimated Fair Value
Due in one year or less	0
Due from one year to five years	0
Due from five years to ten years	0
Due after ten years	0
Debt securities, held-to-maturity, maturity, Allocated and single maturity date, fair value	0
Estimated Fair Value, Held to Maturity	1,086,692	1,125,049
Mortgage-Backed Securities [Member]
Amortized Cost
Available-for-sale securities, amortized cost without single maturity date	233,807
Amortized Cost	233,807	242,527
Estimated Fair Value
Available-for-sale securities, debt maturities, without single maturity date, fair value	204,888
Estimated Fair Value	204,888	212,698
Amortized Cost
Debt securities, held-to-maturity, maturity, without single maturity date, amortized cost	431,704
Amortized Cost, Held to Maturity	431,704	457,325
Estimated Fair Value
Debt securities, held-to-maturity, maturity, without single maturity date, fair value	375,590
Estimated Fair Value, Held to Maturity	375,590	399,845
Commercial Mortgage Backed Securities [Member]
Amortized Cost
Available-for-sale securities, amortized cost without single maturity date	640,928
Amortized Cost	640,928	631,604
Estimated Fair Value
Available-for-sale securities, debt maturities, without single maturity date, fair value	547,451
Estimated Fair Value	547,451	552,522
Amortized Cost
Debt securities, held-to-maturity, maturity, without single maturity date, amortized cost	862,909
Amortized Cost, Held to Maturity	862,909	863,931
Estimated Fair Value
Debt securities, held-to-maturity, maturity, without single maturity date, fair value	711,102
Estimated Fair Value, Held to Maturity	711,102	725,204
Collateralized Mortgage Obligations [Member]
Amortized Cost
Available-for-sale securities, amortized cost without single maturity date	134,234
Amortized Cost	134,234	147,155
Estimated Fair Value
Available-for-sale securities, debt maturities, without single maturity date, fair value	120,458
Estimated Fair Value	120,458	$ 134,033
Amortized Cost
Debt securities, held-to-maturity, maturity, without single maturity date, amortized cost	0
Estimated Fair Value
Debt securities, held-to-maturity, maturity, without single maturity date, fair value	$ 0

Investment Securities Summary o

Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Debt securities, Gross Realized Gains	$ 0	$ 8	$ 283	$ 1,554
Debt securities, Gross Realized Losses	(4)	0	(264)	(1,527)
Debt securities, Net Gains (Losses)	$ (4)	$ 8	$ 19	$ 27

Investment Securities Gross Unr

Investment Securities Gross Unrealized Losses and Fair Values of Investments by Category and Length of Time in a Continuous Unrealized Loss Position (Details) $ in Thousands	Jun. 30, 2023 USD ($) Security	Dec. 31, 2022 USD ($) Security
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	256	719
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 453,525	$ 2,108,595
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (24,621)	$ (256,382)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	518	63
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 2,087,259	$ 477,373
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(319,524)	(89,665)
Debt Securities, Available-for-sale, Unrealized Loss Position	2,540,784	2,585,968
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (344,145)	$ (346,047)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	117	127
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 459,227	$ 504,922
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (37,299)	$ (38,304)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	63	53
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 627,465	$ 620,127
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	(170,622)	(157,903)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value	1,086,692	1,125,049
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	$ (207,921)	$ (196,207)
US Government Debt Securities
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	0	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 96,906
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ (2,814)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	3	2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 220,638	$ 121,579
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(4,904)	(4,841)
Debt Securities, Available-for-sale, Unrealized Loss Position	220,638	218,485
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (4,904)	$ (7,655)
US Government Agencies Debt Securities
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	1	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 999	$ 1,008
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (45)	$ (42)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Unrealized Loss Position	999	1,008
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (45)	$ (42)
State and Municipal Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	72	360
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 156,269	$ 995,122
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (3,092)	$ (157,397)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	302	29
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 869,492	$ 61,089
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(149,354)	(21,419)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,025,761	1,056,211
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (152,446)	$ (178,816)
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	29	66
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 132,631	$ 376,398
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (11,734)	$ (31,333)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	42	6
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 288,993	$ 37,157
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(38,840)	(6,150)
Debt Securities, Available-for-sale, Unrealized Loss Position	421,624	413,555
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (50,574)	$ (37,483)
Collateralized Mortgage Obligations [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	27	96
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 19,500	$ 113,191
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (1,543)	$ (7,650)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	67	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 100,958	$ 20,842
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(12,233)	(5,472)
Debt Securities, Available-for-sale, Unrealized Loss Position	120,458	134,033
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (13,776)	$ (13,122)
Residential Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	66	81
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 57,495	$ 154,861
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (3,864)	$ (18,301)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	29	5
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 146,358	$ 55,293
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(25,059)	(11,546)
Debt Securities, Available-for-sale, Unrealized Loss Position	203,853	210,154
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (28,923)	$ (29,847)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	99	106
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 221,910	$ 246,667
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (14,592)	$ (14,275)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	21	14
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 153,680	$ 153,178
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	(41,522)	(43,205)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value	375,590	399,845
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	$ (56,114)	$ (57,480)
Commercial Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	61	114
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 86,631	$ 371,109
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (4,343)	$ (38,845)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	75	20
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 460,820	$ 181,413
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(89,134)	(40,237)
Debt Securities, Available-for-sale, Unrealized Loss Position	547,451	552,522
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (93,477)	$ (79,082)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | Security	18	21
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 237,317	$ 258,255
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (22,707)	$ (24,029)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	42	39
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 473,785	$ 466,949
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	(129,100)	(114,698)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value	711,102	725,204
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	$ (151,807)	$ (138,727)

Investment Securities Narrative

Investment Securities Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	May 01, 2022
Schedule of Investments [Line Items]
fair value of AFS securities transferred to HTM			$ 415,200
Amortize value of securities transferred from AFS to HTM			$ 479,000
Debt Securities, Held-to-Maturity, Fair Value	$ 1,086,692	$ 1,125,049
Collateral Pledged [Member]
Schedule of Investments [Line Items]
Securities pledged as collateral	$ 1,100,000	$ 1,100,000

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses Summary Of Gross Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 21,076,569	$ 20,308,924
Unearned income	(31,884)	(29,377)
Net loans	21,044,685	20,279,547
Real estate - commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7,846,861	7,693,835
Net loans	7,846,861	7,693,835
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,602,446	4,477,537
Net loans	4,602,446	4,477,537
Real estate – residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,147,262	4,737,279
Net loans	5,147,262	4,737,279
Real estate - home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,061,891	1,102,838
Net loans	1,061,891	1,102,838
Real-estate - construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,308,564	1,269,925
Net loans	1,308,564	1,269,925
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	763,530	699,179
Net loans	763,530	699,179
Leases and other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	346,015	328,331
Net loans	$ 314,131	$ 298,954

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Receivables [Abstract]
ACL - loans	$ 287,442	$ 269,366
Reserve for OBS credit exposures(1)	$ 16,568	$ 16,328

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses Activity in the Allowance for Credit Losses (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 278,695,000	$ 243,705,000	$ 269,366,000	$ 249,001,000	$ 249,001,000
Loans charged off	(4,787,000)	(1,618,000)	(21,690,000)	(3,518,000)
Recoveries of loans previously charged off	2,816,000	5,367,000	5,715,000	8,321,000
Net loans (charged off) recovered	(1,971,000)	3,749,000	(15,975,000)	4,803,000
Provision for credit losses	10,718,000	1,110,000	34,051,000	(5,240,000)
Ending balance	287,442,000	248,564,000	287,442,000	248,564,000	$ 269,366,000
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	(971,000)	390,000	240,000	(210,000)
Off-Balance-Sheet, Credit Loss, Liability	$ 16,568,000	$ 14,323,000	$ 16,568,000	$ 14,323,000

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses Allowance for Loan Losses by Portfolio Segment (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance			$ 269,366,000
Loans charged off	$ (4,787,000)	$ (1,618,000)	(21,690,000)	$ (3,518,000)
Recoveries of loans previously charged off	2,816,000	5,367,000	5,715,000	8,321,000
Net loans (charged off) recovered	(1,971,000)	3,749,000	(15,975,000)	4,803,000
Provision for credit losses	10,718,000	1,110,000	34,051,000	(5,240,000)
Ending balance	287,442,000		287,442,000		$ 269,366,000
Loans - Excluding OBS Credit Exposure
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	278,695,000	243,705,000	269,366,000	249,001,000	249,001,000
Loans charged off	(4,787,000)	(1,618,000)	(21,690,000)	(3,518,000)
Recoveries of loans previously charged off	2,816,000	5,367,000	5,715,000	8,321,000
Net loans (charged off) recovered	(1,971,000)	3,749,000	(15,975,000)	4,803,000
Provision for credit losses	10,718,000	1,110,000	34,051,000	(5,240,000)
Ending balance	287,442,000	248,564,000	287,442,000	248,564,000	269,366,000
Loans - Excluding OBS Credit Exposure | Real estate - commercial mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	66,256,000	79,853,000	69,456,000	87,970,000	87,970,000
Loans charged off	(230,000)	0	(13,592,000)	(152,000)
Recoveries of loans previously charged off	29,000	3,536,000	815,000	3,648,000
Net loans (charged off) recovered	(201,000)	3,536,000	(12,777,000)	3,496,000
Provision for credit losses	6,247,000	(10,784,000)	15,623,000	(18,861,000)
Ending balance	72,302,000	72,605,000	72,302,000	72,605,000	69,456,000
Loans - Excluding OBS Credit Exposure | Commercial and Industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	77,126,000	66,511,000	70,116,000	67,056,000	67,056,000
Loans charged off	(2,017,000)	(201,000)	(2,629,000)	(428,000)
Recoveries of loans previously charged off	988,000	739,000	2,074,000	2,719,000
Net loans (charged off) recovered	(1,029,000)	538,000	(555,000)	2,291,000
Provision for credit losses	(908,000)	5,070,000	5,628,000	2,772,000
Ending balance	75,189,000	72,119,000	75,189,000	72,119,000	70,116,000
Loans - Excluding OBS Credit Exposure | Real estate – residential mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	86,209,000	55,892,000	83,250,000	54,236,000	54,236,000
Loans charged off	(62,000)	(66,000)	(62,000)	(66,000)
Recoveries of loans previously charged off	58,000	92,000	106,000	314,000
Net loans (charged off) recovered	(4,000)	26,000	44,000	248,000
Provision for credit losses	2,644,000	5,717,000	5,555,000	7,151,000
Ending balance	88,849,000	61,635,000	88,849,000	61,635,000	83,250,000
Loans - Excluding OBS Credit Exposure | Consumer and Home Equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	27,303,000	20,213,000	26,429,000	19,749,000	19,749,000
Loans charged off	(1,313,000)	(877,000)	(3,519,000)	(1,929,000)
Recoveries of loans previously charged off	959,000	762,000	1,620,000	1,216,000
Net loans (charged off) recovered	(354,000)	(115,000)	(1,899,000)	(713,000)
Provision for credit losses	2,033,000	2,982,000	4,452,000	4,044,000
Ending balance	28,982,000	23,080,000	28,982,000	23,080,000	26,429,000
Loans - Excluding OBS Credit Exposure | Real-estate - construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	11,646,000	13,303,000	10,743,000	12,941,000	12,941,000
Loans charged off	0	0	0	0
Recoveries of loans previously charged off	569,000	12,000	771,000	44,000
Net loans (charged off) recovered	569,000	12,000	771,000	44,000
Provision for credit losses	(1,071,000)	(2,687,000)	(370,000)	(2,357,000)
Ending balance	11,144,000	10,628,000	11,144,000	10,628,000	10,743,000
Loans - Excluding OBS Credit Exposure | Leases and other loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,155,000	7,933,000	9,372,000	7,049,000	7,049,000
Loans charged off	(1,165,000)	(474,000)	(1,888,000)	(943,000)
Recoveries of loans previously charged off	213,000	226,000	329,000	380,000
Net loans (charged off) recovered	(952,000)	(248,000)	(1,559,000)	(563,000)
Provision for credit losses	1,773,000	812,000	3,163,000	2,011,000
Ending balance	$ 10,976,000	$ 8,497,000	$ 10,976,000	$ 8,497,000	$ 9,372,000

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses Total Impaired Loans by Class Segments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	$ 72,521	$ 90,826
Unpaid principal balance, with no related allowance	50,759	53,617
Unpaid Principal Balance	123,280	144,443
Real estate - commercial mortgage
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	19,727	39,722
Unpaid principal balance, with no related allowance	34,088	30,439
Unpaid Principal Balance	53,815	70,161
Commercial
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	17,420	14,804
Unpaid principal balance, with no related allowance	12,068	12,312
Unpaid Principal Balance	29,488	27,116
Real estate – residential mortgage
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	19,675	25,315
Unpaid principal balance, with no related allowance	2,025	979
Unpaid Principal Balance	21,700	26,294
Real estate - home equity
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	5,711	5,975
Unpaid principal balance, with no related allowance	116	130
Unpaid Principal Balance	5,827	6,105
Construction
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	707	866
Unpaid principal balance, with no related allowance	392	502
Unpaid Principal Balance	1,099	1,368
Consumer
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	17	92
Unpaid principal balance, with no related allowance	0	0
Unpaid Principal Balance	17	92
Leases and other loans
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	9,264	4,052
Unpaid principal balance, with no related allowance	2,070	9,255
Unpaid Principal Balance	$ 11,334	$ 13,307

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Total
Total	$ 21,044,685		$ 21,044,685		$ 20,279,547
Current period gross charge-offs	(4,787)	$ (1,618)	(21,690)	$ (3,518)
Gross loans	21,076,569		21,076,569		20,308,924
Real estate - commercial mortgage
Total
Total	7,846,861		7,846,861		7,693,835
Gross loans	7,846,861		7,846,861		7,693,835
Commercial and Industrial
Total
Total	4,602,446		4,602,446		4,477,537
Gross loans	4,602,446		4,602,446		4,477,537
Commercial and Industrial | PPP Loans
Total
Gross loans	9,800		9,800		20,400
Real estate – residential mortgage
Total
Total	5,147,262		5,147,262		4,737,279
Gross loans	5,147,262		5,147,262		4,737,279
Leases and other loans
Total
Total	314,131		314,131		298,954
Gross loans	346,015		346,015		328,331
Portfolio Segment and Loan Class
2023
Total	1,001,618		1,001,618		2,094,526
2022
Total	1,927,611		1,927,611		2,014,166
2021
Total	2,047,018		2,047,018		1,677,176
2020
Total	1,523,665		1,523,665		1,250,572
2019
Total	1,162,010		1,162,010		878,822
Prior
Total	4,150,246		4,150,246		3,649,811
Revolving Loans Amortized Cost Basis
Total	1,696,616		1,696,616		1,624,415
Total
Total	13,523,505		13,523,505		13,190,912
Portfolio Segment and Loan Class | Pass
2023
Total	1,000,819		1,000,819		2,081,160
2022
Total	1,884,657		1,884,657		1,935,863
2021
Total	1,937,723		1,937,723		1,610,405
2020
Total	1,424,252		1,424,252		1,154,994
2019
Total	1,073,409		1,073,409		831,206
Prior
Total	3,839,001		3,839,001		3,308,374
Revolving Loans Amortized Cost Basis
Total	1,548,427		1,548,427		1,515,897
Total
Total	12,721,251		12,721,251		12,438,824
Portfolio Segment and Loan Class | Special Mention
2023
Total	392		392		11,500
2022
Total	34,371		34,371		74,846
2021
Total	82,331		82,331		27,059
2020
Total	51,154		51,154		41,882
2019
Total	41,894		41,894		21,423
Prior
Total	177,155		177,155		227,972
Revolving Loans Amortized Cost Basis
Total	61,242		61,242		56,995
Total
Total	449,287		449,287		461,927
Portfolio Segment and Loan Class | Substandard or Lower
2023
Total	407		407		1,866
2022
Total	8,583		8,583		3,457
2021
Total	26,964		26,964		39,712
2020
Total	48,259		48,259		53,696
2019
Total	46,707		46,707		26,193
Prior
Total	134,090		134,090		113,465
Revolving Loans Amortized Cost Basis
Total	86,947		86,947		51,523
Total
Total	352,967		352,967		290,161
Portfolio Segment and Loan Class | Real estate - commercial mortgage
2023
Total	436,415		436,415		1,015,702
Current period gross charge-offs			0		0
2022
Total	1,036,707		1,036,707		1,149,131
Current period gross charge-offs			0		0
2021
Total	1,174,780		1,174,780		1,023,456
Current period gross charge-offs			0		0
2020
Total	994,366		994,366		882,963
Current period gross charge-offs			0		0
2019
Total	825,469		825,469		661,006
Current period gross charge-offs			0		0
Prior
Total	3,274,983		3,274,983		2,879,415
Current period gross charge-offs			(30)		(53)
Revolving Loans Amortized Cost Basis
Total	100,229		100,229		81,855
Current period gross charge-offs			0		0
Total
Total	7,846,861		7,846,861		7,693,835
Current period gross charge-offs			(13,592)		(12,473)
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Pass
2023
Total	436,213		436,213		1,014,575
2022
Total	1,014,277		1,014,277		1,095,725
2021
Total	1,079,313		1,079,313		969,118
2020
Total	931,445		931,445		810,850
2019
Total	761,840		761,840		621,689
Prior
Total	3,044,060		3,044,060		2,610,511
Revolving Loans Amortized Cost Basis
Total	98,737		98,737		80,665
Total
Total	7,369,797		7,369,797		7,203,440
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Special Mention
2023
Total	0		0		95
2022
Total	17,541		17,541		50,367
2021
Total	70,283		70,283		23,296
2020
Total	17,725		17,725		33,735
2019
Total	38,372		38,372		16,205
Prior
Total	149,434		149,434		181,736
Revolving Loans Amortized Cost Basis
Total	1,012		1,012		947
Total
Total	294,367		294,367		306,381
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Substandard or Lower
2023
Total	202		202		1,032
2022
Total	4,889		4,889		3,039
2021
Total	25,184		25,184		31,042
2020
Total	45,196		45,196		38,378
2019
Total	25,257		25,257		23,112
Prior
Total	81,489		81,489		87,168
Revolving Loans Amortized Cost Basis
Total	480		480		243
Total
Total	182,697		182,697		184,014
Portfolio Segment and Loan Class | Commercial and Industrial
2023
Total	462,010		462,010		919,629
Current period gross charge-offs			0		0
2022
Total	672,111		672,111		474,042
Current period gross charge-offs			0		0
2021
Total	439,052		439,052		406,462
Current period gross charge-offs			0		(36)
2020
Total	374,131		374,131		336,796
Current period gross charge-offs			0		0
2019
Total	315,524		315,524		193,395
Current period gross charge-offs			0		(21)
Prior
Total	752,310		752,310		651,010
Current period gross charge-offs			0		(365)
Revolving Loans Amortized Cost Basis
Total	1,576,499		1,576,499		1,495,086
Current period gross charge-offs			(502)		(1,192)
Total
Total	4,602,446		4,602,446		4,477,537
Current period gross charge-offs			(2,629)		(2,390)
Portfolio Segment and Loan Class | Commercial and Industrial | Pass
2023
Total	461,413		461,413		907,390
2022
Total	652,086		652,086		449,145
2021
Total	425,486		425,486		397,881
2020
Total	365,676		365,676		315,605
2019
Total	292,754		292,754		185,096
Prior
Total	706,510		706,510		604,352
Revolving Loans Amortized Cost Basis
Total	1,432,210		1,432,210		1,387,961
Total
Total	4,345,186		4,345,186		4,248,048
Portfolio Segment and Loan Class | Commercial and Industrial | Special Mention
2023
Total	392		392		11,405
2022
Total	16,804		16,804		24,479
2021
Total	11,786		11,786		3,763
2020
Total	5,392		5,392		8,147
2019
Total	3,522		3,522		5,218
Prior
Total	16,458		16,458		24,633
Revolving Loans Amortized Cost Basis
Total	60,230		60,230		56,048
Total
Total	115,332		115,332		133,943
Portfolio Segment and Loan Class | Commercial and Industrial | Substandard or Lower
2023
Total	205		205		834
2022
Total	3,221		3,221		418
2021
Total	1,780		1,780		4,818
2020
Total	3,063		3,063		13,044
2019
Total	19,248		19,248		3,081
Prior
Total	29,342		29,342		22,025
Revolving Loans Amortized Cost Basis
Total	84,059		84,059		51,077
Total
Total	141,928		141,928		95,546
Portfolio Segment and Loan Class | Real estate - construction(2)
2023
Total	103,193		103,193		159,195
Current period gross charge-offs			0		0
2022
Total	218,793		218,793		390,993
Current period gross charge-offs			0		0
2021
Total	433,186		433,186		247,258
Current period gross charge-offs			0		0
2020
Total	155,168		155,168		30,813
Current period gross charge-offs			0		0
2019
Total	21,017		21,017		24,421
Current period gross charge-offs			0		0
Prior
Total	122,953		122,953		119,386
Current period gross charge-offs			0		0
Revolving Loans Amortized Cost Basis
Total	19,888		19,888		47,474
Current period gross charge-offs			0		0
Total
Total	1,074,198		1,074,198		1,019,540
Current period gross charge-offs			0		0
Portfolio Segment and Loan Class | Real estate - construction(2) | Pass
2023
Total	103,193		103,193		159,195
2022
Total	218,294		218,294		390,993
2021
Total	432,924		432,924		243,406
2020
Total	127,131		127,131		28,539
2019
Total	18,815		18,815		24,421
Prior
Total	88,431		88,431		93,511
Revolving Loans Amortized Cost Basis
Total	17,480		17,480		47,271
Total
Total	1,006,268		1,006,268		987,336
Portfolio Segment and Loan Class | Real estate - construction(2) | Special Mention
2023
Total	0		0		0
2022
Total	26		26		0
2021
Total	262		262		0
2020
Total	28,037		28,037		0
2019
Total	0		0		0
Prior
Total	11,263		11,263		21,603
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	39,588		39,588		21,603
Portfolio Segment and Loan Class | Real estate - construction(2) | Substandard or Lower
2023
Total	0		0		0
2022
Total	473		473		0
2021
Total	0		0		3,852
2020
Total	0		0		2,274
2019
Total	2,202		2,202		0
Prior
Total	23,259		23,259		4,272
Revolving Loans Amortized Cost Basis
Total	2,408		2,408		203
Total
Total	28,342		28,342		10,601
Payment Activity, Aging Status
2023
Total	714,583		714,583		1,663,147
2022
Total	1,609,386		1,609,386		1,936,748
2021
Total	1,874,980		1,874,980		1,192,235
2020
Total	1,124,104		1,124,104		374,362
2019
Total	354,356		354,356		153,878
Prior
Total	999,279		999,279		889,588
Revolving Loans Amortized Cost Basis
Total	815,436		815,436		843,948
Total
Total	7,521,180		7,521,180		7,088,635
Payment Activity, Aging Status | Performing
2023
Total	714,523		714,523		1,661,656
2022
Total	1,608,325		1,608,325		1,931,346
2021
Total	1,869,784		1,869,784		1,185,464
2020
Total	1,119,036		1,119,036		367,860
2019
Total	349,051		349,051		149,193
Prior
Total	959,132		959,132		847,213
Revolving Loans Amortized Cost Basis
Total	814,043		814,043		842,226
Total
Total	7,460,639		7,460,639		7,019,019
Payment Activity, Aging Status | Nonperforming
2023
Total	60		60		1,491
2022
Total	1,061		1,061		5,402
2021
Total	5,196		5,196		6,771
2020
Total	5,068		5,068		6,502
2019
Total	5,305		5,305		4,685
Prior
Total	40,147		40,147		42,375
Revolving Loans Amortized Cost Basis
Total	1,393		1,393		1,722
Total
Total	60,541		60,541		69,616
Payment Activity, Aging Status | Real estate – residential mortgage
2023
Total	413,908		413,908		935,102
Current period gross charge-offs			0		0
2022
Total	1,031,351		1,031,351		1,713,807
Current period gross charge-offs			0		0
2021
Total	1,719,894		1,719,894		1,060,723
Current period gross charge-offs			0		0
2020
Total	1,025,076		1,025,076		292,633
Current period gross charge-offs			0		0
2019
Total	281,777		281,777		92,042
Current period gross charge-offs			0		0
Prior
Total	675,256		675,256		642,972
Current period gross charge-offs			0		0
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			0		0
Total
Total	5,147,262		5,147,262		4,737,279
Current period gross charge-offs			(62)		(66)
Payment Activity, Aging Status | Real estate – residential mortgage | Performing
2023
Total	413,908		413,908		933,903
2022
Total	1,030,693		1,030,693		1,708,703
2021
Total	1,715,214		1,715,214		1,054,126
2020
Total	1,020,426		1,020,426		286,167
2019
Total	276,538		276,538		87,455
Prior
Total	651,744		651,744		620,416
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	5,108,523		5,108,523		4,690,770
Payment Activity, Aging Status | Real estate – residential mortgage | Nonperforming
2023
Total	0		0		1,199
2022
Total	658		658		5,104
2021
Total	4,680		4,680		6,597
2020
Total	4,650		4,650		6,466
2019
Total	5,239		5,239		4,587
Prior
Total	23,512		23,512		22,556
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	38,739		38,739		46,509
Payment Activity, Aging Status | Consumer and Home Equity
2023
Total	169,539		169,539		416,923
Current period gross charge-offs			0		0
2022
Total	310,016		310,016		110,022
Current period gross charge-offs			0		(587)
2021
Total	95,291		95,291		80,596
Current period gross charge-offs			0		(70)
2020
Total	66,444		66,444		52,420
Current period gross charge-offs			0		(108)
2019
Total	49,908		49,908		45,740
Current period gross charge-offs			0		(16)
Prior
Total	289,731		289,731		217,639
Current period gross charge-offs			(374)		(442)
Revolving Loans Amortized Cost Basis
Total	815,436		815,436		843,948
Current period gross charge-offs			0		(178)
Total
Total	1,825,421		1,825,421		1,802,017
Current period gross charge-offs			(3,519)		(4,412)
Payment Activity, Aging Status | Consumer and Home Equity | Performing
2023
Total	169,479		169,479		416,631
2022
Total	309,613		309,613		109,724
2021
Total	94,775		94,775		80,422
2020
Total	66,026		66,026		52,384
2019
Total	49,842		49,842		45,642
Prior
Total	284,430		284,430		211,127
Revolving Loans Amortized Cost Basis
Total	814,043		814,043		842,226
Total
Total	1,814,953		1,814,953		1,792,217
Payment Activity, Aging Status | Consumer and Home Equity | Nonperforming
2023
Total	60		60		292
2022
Total	403		403		298
2021
Total	516		516		174
2020
Total	418		418		36
2019
Total	66		66		98
Prior
Total	5,301		5,301		6,512
Revolving Loans Amortized Cost Basis
Total	1,393		1,393		1,722
Total
Total	10,468		10,468		9,800
Payment Activity, Aging Status | Leases and other loans
2023
Total	99,355		99,355		146,198
Current period gross charge-offs			(214)		(506)
2022
Total	94,583		94,583		39,427
Current period gross charge-offs			(401)		(167)
2021
Total	33,981		33,981		40,024
Current period gross charge-offs			(133)		(140)
2020
Total	29,249		29,249		29,309
Current period gross charge-offs			(72)		(80)
2019
Total	22,671		22,671		15,019
Current period gross charge-offs			(52)		(47)
Prior
Total	34,292		34,292		28,977
Current period gross charge-offs			(417)		(1,191)
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			0		0
Total
Total	314,131		314,131		298,954
Current period gross charge-offs			(1,888)		(2,131)
Payment Activity, Aging Status | Leases and other loans | Performing
2023
Total	99,355		99,355		146,198
2022
Total	94,583		94,583		39,427
2021
Total	33,981		33,981		40,024
2020
Total	29,249		29,249		29,309
2019
Total	22,671		22,671		15,019
Prior
Total	22,958		22,958		15,670
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	302,797		302,797		285,647
Payment Activity, Aging Status | Leases and other loans | Nonperforming
2023
Total	0		0		0
2022
Total	0		0		0
2021
Total	0		0		0
2020
Total	0		0		0
2019
Total	0		0		0
Prior
Total	11,334		11,334		13,307
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	11,334		11,334		13,307
Payment Activity, Aging Status | Construction - other
2023
Total	31,781		31,781		164,924
Current period gross charge-offs			0		0
2022
Total	173,436		173,436		73,492
Current period gross charge-offs			0		0
2021
Total	25,814		25,814		10,892
Current period gross charge-offs			0		0
2020
Total	3,335		3,335		0
Current period gross charge-offs			0		0
2019
Total	0		0		1,077
Current period gross charge-offs			0		0
Prior
Total	0		0		0
Current period gross charge-offs			0		0
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			0		0
Total
Total	234,366		234,366		250,385
Current period gross charge-offs			0		0
Payment Activity, Aging Status | Construction - other | Performing
2023
Total	31,781		31,781		164,924
2022
Total	173,436		173,436		73,492
2021
Total	25,814		25,814		10,892
2020
Total	3,335		3,335		0
2019
Total	0		0		1,077
Prior
Total	0		0		0
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	234,366		234,366		250,385
Payment Activity, Aging Status | Construction - other | Nonperforming
2023
Total	0		0		0
2022
Total	0		0		0
2021
Total	0		0		0
2020
Total	0		0		0
2019
Total	0		0		0
Prior
Total	0		0		0
Revolving Loans Amortized Cost Basis
Total	0		0		0
Total
Total	0		0		0
Conversion to Term Loan | Portfolio Segment and Loan Class
Revolving Loans Amortized Cost Basis
Total	14,721		14,721		1,424
Conversion to Term Loan | Portfolio Segment and Loan Class | Pass
Revolving Loans Amortized Cost Basis
Total	12,963		12,963		925
Conversion to Term Loan | Portfolio Segment and Loan Class | Special Mention
Revolving Loans Amortized Cost Basis
Total	748		748		250
Conversion to Term Loan | Portfolio Segment and Loan Class | Substandard or Lower
Revolving Loans Amortized Cost Basis
Total	1,010		1,010		249
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage
Revolving Loans Amortized Cost Basis
Total	3,912		3,912		307
Current period gross charge-offs			(13,562)		(12,420)
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Pass
Revolving Loans Amortized Cost Basis
Total	3,912		3,912		307
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Special Mention
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Substandard or Lower
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial
Revolving Loans Amortized Cost Basis
Total	10,809		10,809		1,117
Current period gross charge-offs			(2,127)		(776)
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Pass
Revolving Loans Amortized Cost Basis
Total	9,051		9,051		618
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Special Mention
Revolving Loans Amortized Cost Basis
Total	748		748		250
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Substandard or Lower
Revolving Loans Amortized Cost Basis
Total	1,010		1,010		249
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(2)
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			0		0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(2) | Pass
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(2) | Special Mention
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(2) | Substandard or Lower
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status
Revolving Loans Amortized Cost Basis
Total	29,056		29,056		34,729
Conversion to Term Loan | Payment Activity, Aging Status | Performing
Revolving Loans Amortized Cost Basis
Total	26,745		26,745		34,061
Conversion to Term Loan | Payment Activity, Aging Status | Nonperforming
Revolving Loans Amortized Cost Basis
Total	2,311		2,311		668
Conversion to Term Loan | Payment Activity, Aging Status | Real estate – residential mortgage
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			(62)		(66)
Conversion to Term Loan | Payment Activity, Aging Status | Real estate – residential mortgage | Performing
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status | Real estate – residential mortgage | Nonperforming
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Home Equity
Revolving Loans Amortized Cost Basis
Total	29,056		29,056		34,729
Current period gross charge-offs			(3,145)		(3,011)
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Home Equity | Performing
Revolving Loans Amortized Cost Basis
Total	26,745		26,745		34,061
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Home Equity | Nonperforming
Revolving Loans Amortized Cost Basis
Total	2,311		2,311		668
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			(599)		0
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans | Performing
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans | Nonperforming
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other
Revolving Loans Amortized Cost Basis
Total	0		0		0
Current period gross charge-offs			0		0
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other | Performing
Revolving Loans Amortized Cost Basis
Total	0		0		0
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other | Nonperforming
Revolving Loans Amortized Cost Basis
Total	$ 0		$ 0		$ 0

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses Non-Performing Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	$ 123,280	$ 144,443
Loans and leases 90 days or more past due and still accruing	24,415	27,463
Total non-performing loans and leases	147,695	171,906
Other real estate owned (OREO)	3,881	5,790
Total non-performing assets	151,576	177,696
Total	21,044,685	20,279,547
Mortgage Loans in Process of Foreclosure, Amount	8,400	6,000
Financial Asset, Equal to or Greater than 90 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	24,415	27,463
US Government Insured Loan Program | Financial Asset, Equal to or Greater than 90 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,000	$ 7,700

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses Past Due Loan Status and Non-Accrual Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total	$ 21,044,685	$ 20,279,547
Non- accrual	123,280	144,443
Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	60,092	88,349
Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	13,989	20,805
Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	24,415	27,463
Current
Financing Receivable, Past Due [Line Items]
Total	20,822,909	19,998,487
Real estate - commercial mortgage
Financing Receivable, Past Due [Line Items]
Total	7,846,861	7,693,835
Non- accrual	53,815	70,161
Real estate - commercial mortgage | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	6,566	10,753
Real estate - commercial mortgage | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	2,671	4,644
Real estate - commercial mortgage | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,233	2,473
Real estate - commercial mortgage | Current
Financing Receivable, Past Due [Line Items]
Total	7,782,576	7,605,804
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Total	4,602,446	4,477,537
Non- accrual	29,488	27,116
Commercial and Industrial | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	3,542	6,067
Commercial and Industrial | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,977	2,289
Commercial and Industrial | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,100	1,172
Commercial and Industrial | Current
Financing Receivable, Past Due [Line Items]
Total	4,566,339	4,440,893
Real estate – residential mortgage
Financing Receivable, Past Due [Line Items]
Total	5,147,262	4,737,279
Non- accrual	21,700	26,294
Real estate – residential mortgage | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	35,456	57,061
Real estate – residential mortgage | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	6,017	8,209
Real estate – residential mortgage | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	17,457	20,215
Real estate – residential mortgage | Current
Financing Receivable, Past Due [Line Items]
Total	5,066,632	4,625,500
Real estate - home equity
Financing Receivable, Past Due [Line Items]
Total	1,061,891	1,102,838
Non- accrual	5,827	6,105
Real estate - home equity | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	5,865	5,666
Real estate - home equity | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,567	2,444
Real estate - home equity | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	3,902	2,704
Real estate - home equity | Current
Financing Receivable, Past Due [Line Items]
Total	1,044,730	1,085,919
Real-estate - construction
Financing Receivable, Past Due [Line Items]
Total	1,308,564	1,269,925
Non- accrual	1,099	1,368
Real-estate - construction | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,719	1,762
Real-estate - construction | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	1,758
Real-estate - construction | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Real-estate - construction | Current
Financing Receivable, Past Due [Line Items]
Total	1,305,746	1,265,037
Consumer
Financing Receivable, Past Due [Line Items]
Total	763,530	699,179
Non- accrual	17	92
Consumer | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	6,482	6,692
Consumer | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,382	1,339
Consumer | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	723	899
Consumer | Current
Financing Receivable, Past Due [Line Items]
Total	754,926	690,157
Leases and other loans
Financing Receivable, Past Due [Line Items]
Total	314,131	298,954
Non- accrual	11,334	13,307
Leases and other loans | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	462	348
Leases and other loans | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	375	122
Leases and other loans | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Leases and other loans | Current
Financing Receivable, Past Due [Line Items]
Total	301,960	285,177
US Government Insured Loan Program | Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	100	100
US Government Insured Loan Program | Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	700
US Government Insured Loan Program | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	$ 1,000	$ 7,700

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Dec. 31, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with principal balances approximately in percentage		91%	91%
Unpaid principal balance, with no related allowance	$ 53,617	$ 50,759	$ 53,617	$ 50,759
Borrowers with loan modifications, commitments to lend additional funds		0		0
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Minimum balance of loans evaluated individually for impairment	$ 1,000			1,000
Impaired loans balances, real estate as collateral		$ 1,000		$ 1,000

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses - Amortized Cost on Modified Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 2,321	$ 4,976
Real estate - commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 276	$ 1,478
% of Class of Financing Receivable	0%	0.02%
Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 0	$ 75
% of Class of Financing Receivable	0%	0%
Real estate – residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 2,045	$ 3,423
% of Class of Financing Receivable	0.04%	0.07%

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses - Term Extension on Modified Loans (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Real estate - commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications, added weighted average life (in years)	1 year 3 months	2 years 18 days
Real estate – residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications, added weighted average life (in years)	5 years 3 months 14 days	4 years 7 months 20 days
Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications, added weighted average life (in years)		2 years 10 months 17 days

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses - Performance of Loans Modified in Period (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 2,321	$ 4,976
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		4,976
30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
90+ Past Due and Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Financial assets, total past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate - commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	276	1,478
Real estate - commercial mortgage | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		1,478
Real estate - commercial mortgage | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate - commercial mortgage | 90+ Past Due and Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate - commercial mortgage | Financial assets, total past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	0	75
Commercial and Industrial | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		75
Commercial and Industrial | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Commercial and Industrial | 90+ Past Due and Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Commercial and Industrial | Financial assets, total past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate – residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis	$ 2,045	3,423
Real estate – residential mortgage | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		3,423
Real estate – residential mortgage | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate – residential mortgage | 90+ Past Due and Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		0
Real estate – residential mortgage | Financial assets, total past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortization Cost Basis		$ 0

Mortgage Servicing Rights Summa

Mortgage Servicing Rights Summary of Changes in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Servicing Asset [Abstract]
Fair value of MSRs	$ 49,400		$ 49,400		$ 50,000
Residential Mortgage
Amortized Cost:
Balance at beginning of period	33,082	$ 35,624	34,217	$ 35,993
Originations of MSRs	688	1,053	884	2,407
Amortization	(1,312)	(1,428)	(2,643)	(3,151)
Balance at end of period	32,458	35,249	32,458	35,249
Servicing Asset [Abstract]
Balance at beginning of period	0	0	0	(600)
Reduction (addition) to valuation allowance	0	0	0	600
Balance at end of period	0	0	0	0
Net MSRs at end of period	32,458	35,249	32,458	35,249
Fair value of MSRs	$ 49,444	$ 49,804	$ 49,444	$ 49,804

Mortgage Servicing Rights - Nar

Mortgage Servicing Rights - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Servicing Asset at Amortized Cost [Line Items]
Mortgage Loans Serviced By For Third Parties	$ 4,100,000		$ 4,200,000
Fair value of MSRs	49,400		50,000
Residential Mortgage
Servicing Asset at Amortized Cost [Line Items]
Fair value of MSRs	49,444			$ 49,804
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance	$ 0	$ 0	$ 0	$ 0	$ 0	$ 600

Derivative Financial Instrume_3

Derivative Financial Instruments Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 28,300,000		$ 28,300,000
Foreign currency open position	500,000		500,000
Mortgage Loans Held For Sale [Member]
Derivative [Line Items]
Gain (loss) in fair values of mortgage loans held for sale	$ 0	$ 500,000	$ 100,000	$ (600,000)

Derivative Financial Instrume_4

Derivative Financial Instruments Notional Amounts and Fair Values of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative asset, fair value	$ 173,528	$ 166,715
Derivative liability, gross liability	(291,250)	(296,766)
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Derivative asset, notional amount	136,789	70,836
Derivative liability, notional amount	3,405	4,939
Derivative asset, fair value	465	182
Derivative liability, gross liability	(11)	(51)
Forward Commitments [Member]
Derivative [Line Items]
Derivative asset, notional amount	36,500	0
Derivative liability, notional amount	0	10,000
Derivative asset, fair value	399	0
Derivative liability, gross liability	0	(147)
Interest Rate Swap with Customer [Member]
Derivative [Line Items]
Derivative asset, notional amount	410,749	171,317
Derivative liability, notional amount	3,925,331	3,802,480
Derivative asset, fair value	5,655	3,337
Derivative liability, gross liability	(283,189)	(280,401)
Interest Rate Swap With Counterparty [Member]
Derivative [Line Items]
Derivative asset, notional amount	3,925,331	3,802,480
Derivative liability, notional amount	410,749	171,317
Derivative asset, fair value	167,164	161,956
Derivative liability, gross liability	(6,022)	(3,703)
Balance Sheet Hedging Instruments
Derivative [Line Items]
Derivative asset, notional amount	200,000	600,000
Derivative liability, notional amount	1,300,000	1,000,000
Derivative asset, fair value	396	1,321
Derivative liability, gross liability	(2,002)	(12,163)
Foreign Exchange Contracts With Customer [Member]
Derivative [Line Items]
Derivative asset, notional amount	21,527	11,123
Derivative liability, notional amount	20,839	3,672
Derivative asset, fair value	234	571
Derivative liability, gross liability	(238)	(85)
Foreign Exchange Contracts With Correspondent Banks [Member]
Derivative [Line Items]
Derivative asset, notional amount	20,166	4,887
Derivative liability, notional amount	5,397	8,280
Derivative asset, fair value	313	101
Derivative liability, gross liability	$ (37)	$ (499)

Derivative Financial Instrume_5

Derivative Financial Instruments Summary of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative	$ (5,586)	$ (8,586)	$ (12,406)	$ (39,962)
Amount of Gain (Loss) Reclassified from AOCI into Income	(7,010)	335	(14,153)	1,842
Interest Rate Swap [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative	(7,251)	(11,100)	5,284	(51,663)
Amount of Gain (Loss) Recognized in OCI Included Component	(7,251)	(11,100)	5,284	(51,663)
Amount of Gain (Loss) Recognized in OCI Excluded Component	0	0	0	0
Interest Rate Swap [Member] | Interest Income
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	(7,032)	434	(14,189)	2,382
Amount of Gain (Loss) Reclassified from AOCI into Income Included Component	(7,032)	434	(14,189)	2,382
Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component	$ 0	$ 0	$ 0	$ 0

Derivative Financial Instrume_6

Derivative Financial Instruments Fair Value Gains and Losses on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative [Line Items]
Net fair value gains/(losses) on derivative financial instruments	$ 568	$ (2,101)	$ 1,053	$ (1,669)
Mortgage Banking Derivatives [Member]
Derivative [Line Items]
Net fair value gains/(losses) on derivative financial instruments	475	(2,095)	869	(1,710)
Interest Rate Swap [Member]
Derivative [Line Items]
Net fair value gains/(losses) on derivative financial instruments	0	0	0	0
Foreign Exchange Contract [Member]
Derivative [Line Items]
Net fair value gains/(losses) on derivative financial instruments	$ 93	$ (6)	$ 184	$ 41

Derivative Financial Instrume_7

Derivative Financial Instruments Summary of Mortgage Loans Held For Sale (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	$ 14,673,000		$ 14,673,000		$ 7,264,000
Mortgage Loans Held For Sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	0	$ 500,000	100,000	$ (600,000)
Cost [Member] | Mortgage Loans Held For Sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	14,531,000		14,531,000		7,180,000
Fair value [Member] | Mortgage Loans Held For Sale [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	$ 14,673,000		$ 14,673,000		$ 7,264,000

Derivative Financial Instrume_8

Derivative Financial Instruments Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative asset, fair value	$ 173,528	$ 166,715
Derivative, Collateral, Obligation to Return Securities	(9,335)	(8,172)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	164,193	158,543
Derivative liability, gross liability	291,250	296,766
Derivative liability, Collateral, Right to Reclaim Securities	(7,729)	(2,872)
Derivative liability, Collateral, Right to Reclaim Cash	(118,789)	(127,638)
Derivative liability, Net Amount	164,732	166,256
Interest Rate Swap [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	173,215	166,614
Derivative, Collateral, Obligation to Return Securities	(9,022)	(8,071)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	164,193	158,543
Derivative liability, gross liability	291,213	296,267
Derivative liability, Collateral, Right to Reclaim Securities	(7,416)	(2,771)
Derivative liability, Collateral, Right to Reclaim Cash	(118,789)	(127,638)
Derivative liability, Net Amount	165,008	165,858
Foreign Exchange Contract [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	313	101
Derivative, Collateral, Obligation to Return Securities	(313)	(101)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	0	0
Derivative liability, gross liability	37	499
Derivative liability, Collateral, Right to Reclaim Securities	(313)	(101)
Derivative liability, Collateral, Right to Reclaim Cash	0	0
Derivative liability, Net Amount	$ (276)	$ 398

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive (Loss) Income - Changes in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Equity [Abstract]
Unrealized loss on securities, before tax amount	$ (40,361)	$ (114,312)	$ 1,838	$ (313,379)
Unrealized loss on securities, tax effect	9,142	25,960	(416)	71,168
Unrealized loss on securities, net of tax amount	(31,219)	(88,352)	1,422	(242,211)
Reclassification adjustment for securities gain included in net income, before tax amount	(4)	8	18	27
Reclassification adjustment for securities gain included in net income, tax effect	1	(2)	(4)	(6)
Reclassification adjustment for securities gain included in net income, net of tax amount	(3)	6	14	21
Amortization of net unrealized losses on AFS securities transferred to HTM. before-tax amount	1,941	(62,250)	3,851	(61,686)
Amortization of net unrealized losses on AFS securities transferred to HTM, tax	(440)	14,137	(872)	14,009
Amortization of net unrealized losses on AFS securities transferred to HTM, net of tax amount	1,501	(48,113)	2,979	(47,677)
Net unrealized loss on interest rate swaps used in cash flow hedges, before-tax amount	(7,251)	(11,100)	5,284	(51,663)
Net unrealized loss on interest rate swaps used in cash flow hedges, before-tax amount	1,665	2,514	(17,690)	11,701
Amount of Gain (Loss) Recognized in OCI on Derivative	(5,586)	(8,586)	(12,406)	(39,962)
Net unrealized losses on interest rate swaps used in cash flow hedges, before-tax amount	7,032	(434)	14,189	(2,382)
Net unrealized losses on interest rate swaps used in cash flow hedges, tax	(22)	99	(36)	540
Net unrealized losses on interest rate swaps used in cash flow hedges, net of tax amount	7,010	(335)	14,153	(1,842)
Amortization of net unrecognized pension and postretirement items, before tax amount	4	33	36	65
Amortization of net unrecognized pension and postretirement items, tax effect	(1)	(8)	(8)	(15)
Amortization of net unrecognized pension and postretirement items, net of tax amount	3	25	28	50
Total Other Comprehensive Income, Before Tax Amount	(38,639)	(188,055)	25,216	(429,018)
Total Other Comprehensive Income, Tax Effect	10,345	42,700	(19,026)	97,397
Other Comprehensive Income (Loss)	$ (28,294)	$ (145,355)	$ 6,190	$ (331,621)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive (Loss) Income - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance	$ 2,618,998	$ 2,569,535	$ 2,579,757	$ 2,712,680
OCI before reclassifications	(36,805)	(96,938)	(10,984)	(282,173)
Amounts reclassified from AOCI	7,010	(304)	14,195	(1,771)
Ending Balance	2,642,152	2,471,093	2,642,152	2,471,093
Unrealized Gains (Losses) on Investment Securities
Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance	(282,095)	(112,968)	(316,231)	40,440
OCI before reclassifications	(31,219)	(88,352)	1,422	(242,211)
Amounts reclassified from AOCI	(3)	6	14	21
Ending Balance	(311,816)	(249,427)	(311,816)	(249,427)
Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges
Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance	(61,453)	(37,699)	(61,776)	(4,816)
OCI before reclassifications	(5,586)	(8,586)	(12,406)	(39,962)
Amounts reclassified from AOCI	7,010	(335)	14,153	(1,842)
Ending Balance	(60,029)	(46,620)	(60,029)	(46,620)
Unrecognized Pension and Postretirement Plan Income (Costs)
Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance	(7,444)	(8,188)	(7,469)	(8,213)
OCI before reclassifications	0	0	0	0
Amounts reclassified from AOCI	3	25	28	50
Ending Balance	(7,441)	(8,163)	(7,441)	(8,163)
Total
Accumulated Other Comprehensive Income [Roll Forward]
Beginning Balance	(350,992)	(158,855)	(385,476)	27,411
Ending Balance	(379,286)	(304,210)	(379,286)	(304,210)
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income [Roll Forward]
Amounts reclassified from AOCI	1,501	(48,113)	2,979	(47,677)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Investment Securities
Accumulated Other Comprehensive Income [Roll Forward]
Amounts reclassified from AOCI	1,501	(48,113)	2,979	(47,677)
Reclassification out of Accumulated Other Comprehensive Income | Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges
Accumulated Other Comprehensive Income [Roll Forward]
Amounts reclassified from AOCI	0	0	0	0
Reclassification out of Accumulated Other Comprehensive Income | Unrecognized Pension and Postretirement Plan Income (Costs)
Accumulated Other Comprehensive Income [Roll Forward]
Amounts reclassified from AOCI	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements Assets

Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	$ 2,572,721	$ 2,646,767
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	14,673	7,264
Estimated Fair Value	2,572,721	2,646,767
Investments held in Rabbi Trust	28,046	23,435
Derivative assets	174,626	167,468
Assets, Fair Value Disclosure	2,790,066	2,844,934
Liabilities Held-In-Trust, Fair Value Disclosure	28,046	23,435
Derivative Liability	291,499	297,049
Total liabilities	319,545	320,484
US Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	220,638	218,485
US Government Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	220,638	218,485
US Government Agencies Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	999	1,008
US Government Agencies Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	999	1,008
US States and Political Subdivisions Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	1,053,908	1,105,712
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	1,053,908	1,105,712
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	424,379	422,309
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	424,379	422,309
Collateralized Mortgage Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	120,458	134,033
Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	120,458	134,033
Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	204,888	212,698
Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	204,888	212,698
Commercial Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	547,451	552,522
Commercial Mortgage Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	547,451	552,522
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	0	0
Estimated Fair Value	220,638	218,485
Investments held in Rabbi Trust	28,046	23,435
Derivative assets	547	672
Assets, Fair Value Disclosure	249,231	242,592
Liabilities Held-In-Trust, Fair Value Disclosure	28,046	23,435
Derivative Liability	275	584
Total liabilities	28,321	24,019
Fair Value, Inputs, Level 1 [Member] | US Government Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	220,638	218,485
Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial Mortgage Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	14,673	7,264
Estimated Fair Value	2,352,083	2,428,282
Investments held in Rabbi Trust	0	0
Derivative assets	174,079	166,796
Assets, Fair Value Disclosure	2,540,835	2,602,342
Liabilities Held-In-Trust, Fair Value Disclosure	0	0
Derivative Liability	291,224	296,465
Total liabilities	291,224	296,465
Fair Value, Inputs, Level 2 [Member] | US Government Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	999	1,008
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	1,053,908	1,105,712
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	424,379	422,309
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	120,458	134,033
Fair Value, Inputs, Level 2 [Member] | Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	204,888	212,698
Fair Value, Inputs, Level 2 [Member] | Commercial Mortgage Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	547,451	552,522
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	0	0
Estimated Fair Value	0	0
Investments held in Rabbi Trust	0	0
Derivative assets	0	0
Assets, Fair Value Disclosure	0	0
Liabilities Held-In-Trust, Fair Value Disclosure	0	0
Derivative Liability	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 3 [Member] | US Government Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Commercial Mortgage Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	$ 0	$ 0

Fair Value Measurements Asset_2

Fair Value Measurements Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	$ 3,881	$ 5,790
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans	103,567	121,115
OREO	3,881	5,790
MSRs(1)	49,444	50,044
Assets, Fair Value Disclosure	$ 156,892	$ 176,949

Fair Value Measurements Details

Fair Value Measurements Details of Book Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
AFS, at estimated fair value	$ 2,572,721	$ 2,646,767
Debt Securities, Held-to-Maturity, Fair Value	1,086,692	1,125,049
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	504,702	681,921
FRB and FHLB stock	124,218	130,186
Loans held for sale	14,673	7,264
AFS, at estimated fair value	2,572,721	2,646,767
Debt Securities, Held-to-Maturity, Fair Value	1,294,613	1,321,256
Net Loans	20,757,243	20,010,181
Accrued interest receivable	96,991	91,579
Other financial assets	675,328	642,049
Demand and savings deposits	18,055,623	18,851,912
Brokered deposits	949,259	208,416
Time deposits	2,201,658	1,589,210
Accrued interest payable	24,101	10,185
Federal funds purchased	555,000	191,000
Federal Home Loan Bank advances	1,165,000	1,250,000
Senior debt and subordinated debt	539,994	539,634
Other borrowings	459,120	890,573
Other financial liabilities	454,641	467,705
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	504,702	681,921
FRB and FHLB stock	124,218	130,186
Loans held for sale	14,673	7,264
AFS, at estimated fair value	2,572,721	2,646,767
Debt Securities, Held-to-Maturity, Fair Value	1,086,692	1,125,049
Net Loans	19,233,430	18,862,701
Accrued interest receivable	96,991	91,579
Other financial assets	675,328	642,049
Demand and savings deposits	18,055,623	18,851,912
Brokered deposits	947,399	213,501
Time deposits	2,182,337	1,574,747
Accrued interest payable	24,101	10,185
Federal funds purchased	555,003	190,998
Federal Home Loan Bank advances	1,164,991	1,249,629
Senior debt and subordinated debt	461,365	456,867
Other borrowings	459,097	890,573
Other financial liabilities	454,641	467,705
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	504,702	681,921
FRB and FHLB stock	0	0
Loans held for sale	0	0
AFS, at estimated fair value	220,638	218,485
Debt Securities, Held-to-Maturity, Fair Value	0	0
Net Loans	0	0
Accrued interest receivable	96,991	91,579
Other financial assets	447,924	419,419
Demand and savings deposits	18,055,623	18,851,912
Brokered deposits	150,222	188,416
Time deposits	0	0
Accrued interest payable	24,101	10,185
Federal funds purchased	555,003	190,998
Federal Home Loan Bank advances	1,164,991	1,249,629
Senior debt and subordinated debt	0	0
Other borrowings	458,087	889,393
Other financial liabilities	146,849	154,912
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	0	0
FRB and FHLB stock	124,218	130,186
Loans held for sale	14,673	7,264
AFS, at estimated fair value	2,352,083	2,428,282
Debt Securities, Held-to-Maturity, Fair Value	1,086,692	1,125,049
Net Loans	0	0
Accrued interest receivable	0	0
Other financial assets	174,079	166,796
Demand and savings deposits	0	0
Brokered deposits	797,177	25,085
Time deposits	2,182,337	1,574,747
Accrued interest payable	0	0
Federal funds purchased	0	0
Federal Home Loan Bank advances	0	0
Senior debt and subordinated debt	461,365	456,867
Other borrowings	1,010	1,180
Other financial liabilities	291,224	296,465
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	0	0
FRB and FHLB stock	0	0
Loans held for sale	0	0
AFS, at estimated fair value	0	0
Debt Securities, Held-to-Maturity, Fair Value	0	0
Net Loans	19,233,430	18,862,701
Accrued interest receivable	0	0
Other financial assets	53,325	55,834
Demand and savings deposits	0	0
Brokered deposits	0	0
Time deposits	0	0
Accrued interest payable	0	0
Federal funds purchased	0	0
Federal Home Loan Bank advances	0	0
Senior debt and subordinated debt	0	0
Other borrowings	0	0
Other financial liabilities	$ 16,568	$ 16,328

Fair Value Measurements Narrati

Fair Value Measurements Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	$ 2,572,721	$ 2,646,767
Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Weighted average annual constant prepayment rate	7.80%
Weighted average discount rate	9%
Fair Value, Recurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	$ 2,572,721	2,646,767
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	220,638	218,485
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	2,352,083	2,428,282
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	0	0
Fair Value, Recurring [Member] | Financial Institutions Subordinated Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	417,400	415,400
Fair Value, Recurring [Member] | Other Corporate Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
AFS, at estimated fair value	7,000	6,900
Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other financial liabilities	300	600
Foreign Exchange Contract [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other financial assets	500	700
Forward Commitments [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other financial assets	900	200
Other financial liabilities	0	200
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other financial assets	173,200	166,600
Other financial liabilities	$ 291,200	$ 296,300

Net Income Per Share Reconcilia

Net Income Per Share Reconciliation of Weighted Average Common Shares Outstanding (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding (basic) (in shares)	165,854	160,920	166,227	160,755
Impact of common stock equivalents (in shares)	1,337	1,155	1,582	1,260
Weighted average shares outstanding (diluted) (in shares)	167,191	162,075	167,809	162,015
Basic (in dollars per share)	$ 0.46	$ 0.42	$ 0.86	$ 0.80
Diluted (in dollars per share)	$ 0.46	$ 0.42	$ 0.85	$ 0.80

Stock-Based Compensation Narrat

Stock-Based Compensation Narrative (Details)	6 Months Ended
	Jun. 30, 2023 shares
Employee Equity Plan [Member]
Statement [Line Items]
Awards vesting period (in years)	3 years
Directors' Plan [Member]
Statement [Line Items]
Awards vesting period (in years)	1 year
Number of equity awards that may be awarded (in shares)	4,400,000
Shares reserved for future grants under the stock option and compensation plan	406,000

Stock-Based Compensation Compen

Stock-Based Compensation Compensation Expense and Related Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Compensation expense	$ 2,571	$ 3,846	$ 4,240	$ 6,586
Tax benefit	(565)	(758)	(927)	(1,361)
Total stock-based compensation, net of tax	$ 2,006	$ 3,088	$ 3,313	$ 5,225

Employee Benefit Plans Summary

Employee Benefit Plans Summary of Pension Plan and Postretirement Plan Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 855	$ 598	$ 1,711	$ 1,196
Expected return on plan assets	(877)	(1,099)	(1,754)	(2,197)
Net amortization and deferral	80	164	161	327
Net periodic benefit	58	(337)	118	(674)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	13	9	26	17
Net accretion and deferral	(136)	(131)	(272)	(262)
Net periodic benefit	$ (123)	$ (122)	$ (246)	$ (245)

Commitments and Contingencies O

Commitments and Contingencies Outstanding Commitments to Extend Credit and Letters of Credit (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Valuation allowances and reserves, balance	$ 5,000	$ 6,000
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Valuation allowances and reserves, balance	8,963,903	8,695,621
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Valuation allowances and reserves, balance	259,063	260,829
Commercial Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Valuation allowances and reserves, balance	$ 53,816	$ 49,288

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Valuation allowances and reserves, balance	$ 5	$ 6
Residential Mortgage
Loss Contingencies [Line Items]
Valuation allowances and reserves, balance	$ 1.4	$ 1.4

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Thousands		1 Months Ended	6 Months Ended
	Mar. 16, 2022	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Repayments of senior debt and subordinated debt			$ 0	$ 65,140
Payments for repurchase of trust preferred debt		$ 17,200
Senior Notes | 3.60% Senior Notes
Debt Instrument [Line Items]
Repayments of senior debt and subordinated debt	$ 65,000
Debt instrument, interest rate (as a percent)	3.60%