Northwest Bancshares (NWBI) 10-Q 5 Aug 24 2024 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2024	Jul. 31, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-34582
Entity Registrant Name	NORTHWEST BANCSHARES, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	27-0950358
Entity Address, Address Line One	3 Easton Oval
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Columbus
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43219
City Area Code	814
Local Phone Number	726-2140
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.01 Par Value
Trading Symbol	NWBI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		127,371,199
Entity Central Index Key	0001471265
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets
Cash and cash equivalents	$ 228,433	$ 122,260
Marketable securities available-for-sale (amortized cost of $1,202,354 and $1,240,003, respectively)	1,029,191	1,043,359
Marketable securities held-to-maturity (fair value of $663,292 and $699,506, respectively)	784,208	814,839
Total cash and cash equivalents and marketable securities	2,041,832	1,980,458
Loans held-for-sale	9,445	8,768
Loans held for investment	11,344,919	11,406,041
Allowance for credit losses	(125,070)	(125,243)
Loans receivable, net	11,229,294	11,289,566
FHLB stock, at cost	20,842	30,146
Accrued interest receivable	48,739	47,353
Real estate owned, net	74	104
Premises and equipment, net	128,208	138,838
Bank-owned life insurance	253,890	251,895
Goodwill	380,997	380,997
Other intangible assets, net	3,954	5,290
Other assets	277,723	294,458
Total assets	14,385,553	14,419,105
Liabilities:
Noninterest-bearing demand deposits	2,581,699	2,669,023
Interest-bearing demand deposits	2,565,750	2,634,546
Money market deposit accounts	1,964,841	1,968,218
Savings deposits	2,148,727	2,105,234
Time deposits	2,826,362	2,602,881
Total deposits	12,087,379	11,979,902
Borrowed funds	242,363	398,895
Subordinated debt	114,364	114,189
Junior subordinated debentures	129,703	129,574
Advances by borrowers for taxes and insurance	52,271	45,253
Accrued interest payable	21,423	13,669
Other liabilities	181,452	186,306
Total liabilities	12,828,955	12,867,788
Shareholders’ equity:
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	0	0
Common stock, $0.01 par value: 500,000,000 shares authorized, 127,307,997 and 127,110,453 shares issued and outstanding, respectively	1,273	1,271
Additional paid-in capital	1,027,703	1,024,852
Retained earnings	657,706	674,686
Accumulated other comprehensive loss	(130,084)	(149,492)
Total shareholders’ equity	1,556,598	1,551,317
Total liabilities and shareholders’ equity	$ 14,385,553	$ 14,419,105

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Marketable securities available-for-sale, amortized cost	$ 1,202,354	$ 1,240,003
Securities held-to-maturity	$ 663,292	$ 699,506
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	127,307,997	127,110,453
Common stock, shares outstanding (in shares)	127,307,997	127,110,453

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Interest income:
Loans receivable	$ 153,954	$ 132,724	$ 303,525	$ 256,469
Mortgage-backed securities	9,426	8,326	17,370	16,863
Taxable investment securities	728	841	1,522	1,686
Tax-free investment securities	457	667	948	1,367
FHLB stock dividends	498	844	1,105	1,534
Interest-earning deposits	1,791	594	2,623	1,017
Total interest income	166,854	143,996	327,093	278,936
Interest expense:
Deposits	52,754	21,817	100,440	33,055
Borrowed funds	7,259	13,630	16,574	24,868
Total interest expense	60,013	35,447	117,014	57,923
Net interest income	106,841	108,549	210,079	221,013
Provision for credit losses - loans	2,169	6,010	6,403	10,880
Provision/(benefit) for credit losses - unfunded commitments	(2,539)	2,920	(3,338)	3,046
Net interest income after provision for credit losses	107,211	99,619	207,014	207,087
Noninterest income:
Loss on sale of investments	(39,413)	(8,306)	(39,413)	(8,306)
Gain on sale of mortgage servicing rights	0	8,305	0	8,305
Gain on sale of SBA loans	1,457	832	2,330	1,111
Service charges and fees	15,527	14,833	31,050	28,022
Trust and other financial services income	7,566	6,866	14,693	13,315
Gain on real estate owned, net	487	785	544	893
Income from bank-owned life insurance	1,371	1,304	2,873	2,573
Mortgage banking income	901	1,028	1,353	1,552
Other operating income	3,255	4,150	5,684	6,301
Total noninterest (loss)/income	(8,849)	29,797	19,114	53,766
Noninterest expense:
Compensation and employee benefits	53,531	47,650	105,071	94,254
Premises and occupancy costs	7,464	7,579	15,091	15,050
Office operations	3,819	2,800	6,586	5,810
Collections expense	406	429	742	816
Processing expenses	14,695	14,648	29,420	28,998
Marketing expenses	2,410	2,856	4,559	5,748
Federal deposit insurance premiums	2,865	2,064	5,888	4,287
Professional services	3,728	3,804	7,793	8,562
Amortization of intangible assets	635	842	1,336	1,751
Real estate owned expense	57	83	123	264
Merger, asset disposition and restructuring expense	1,915	1,593	2,870	4,395
Other expenses	895	1,510	2,965	3,373
Total noninterest expense	92,420	85,858	182,444	173,308
Income before income taxes	5,942	43,558	43,684	87,545
Federal and state income taxes expense	1,195	10,514	9,774	20,822
Net income	$ 4,747	$ 33,044	$ 33,910	$ 66,723
Basic earnings per share (in dollars per share)	$ 0.04	$ 0.26	$ 0.27	$ 0.53
Diluted earnings per share (in dollars per share)	$ 0.04	$ 0.26	$ 0.27	$ 0.52

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 4,747	$ 33,044	$ 33,910	$ 66,723
Net unrealized holding gains/(losses) on marketable securities:
Unrealized holding losses, net of tax of $168, $3,771, $1,926 and $463, respectively	(3,391)	(17,719)	(9,089)	(4,702)
Reclassification adjustment for losses included in net income, net of tax of ($7,706), ($1,731), ($7,706) and ($1,731), respectively	26,789	5,636	26,789	5,636
Net unrealized holding gains/(losses) on marketable securities	23,398	(12,083)	17,700	934
Change in fair value of interest rate swaps, net of tax of ($96), ($508), ($726) and ($508), respectively	330	1,737	2,484	1,737
Defined benefit plan:
Actuarial reclassification adjustments for prior period service costs and actuarial gains included in net income, net of tax of $147, $152, $294 and $304, respectively	(388)	(382)	(776)	(764)
Other comprehensive income/(loss)	23,340	(10,728)	19,408	1,907
Total comprehensive income	$ 28,087	$ 22,316	$ 53,318	$ 68,630

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Unrealized holding losses, tax	$ 168	$ 3,771	$ 1,926	$ 463
Reclassification adjustment for losses included in net income, tax	(7,706)	(1,731)	(7,706)	(1,731)
Unrealized holding losses on interest rate swaps, tax	(96)	(508)	(726)	(508)
Actuarial reclassification adjustments for prior period service costs and actuarial gains included in net income, tax	$ 147	$ 152	$ 294	$ 304

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	ASU 2022-02 Adoption	Common stock	Additional paid-in capital	Retained earnings	Retained earnings ASU 2022-02 Adoption	Accumulated other comprehensive income/(loss)
Beginning balance (in shares) at Dec. 31, 2022			127,028,848
Beginning balance at Dec. 31, 2022	$ 1,491,486	$ (329)	$ 1,270	$ 1,019,647	$ 641,727	$ (329)	$ (171,158)
Comprehensive income:
Net income	66,723				66,723
Other comprehensive income (loss), net of tax	1,907						1,907
Total comprehensive income	68,630				66,723		1,907
Exercise of stock options (in shares)			41,684
Exercise of stock options	498		$ 1	497
Stock-based compensation expense (in shares)			73,775
Stock-based compensation expense	2,045		$ 1	2,044
Stock-based compensation forfeited (in shares)			(55,344)
Stock-based compensation forfeited	0		$ (1)	1
Dividends paid	(50,829)				(50,829)
Ending balance (in shares) at Jun. 30, 2023			127,088,963
Ending balance at Jun. 30, 2023	1,511,501		$ 1,271	1,022,189	657,292		(169,251)
Beginning balance (in shares) at Mar. 31, 2023			127,065,400
Beginning balance at Mar. 31, 2023	1,513,275		$ 1,271	1,020,855	649,672		(158,523)
Comprehensive income:
Net income	33,044				33,044
Other comprehensive income (loss), net of tax	(10,728)						(10,728)
Total comprehensive income	22,316				33,044		(10,728)
Exercise of stock options (in shares)			3,466
Exercise of stock options	33			33
Stock-based compensation expense (in shares)			40,727
Stock-based compensation expense	1,301		$ 1	1,300
Stock-based compensation forfeited (in shares)			(20,630)
Stock-based compensation forfeited	0		$ (1)	1
Dividends paid	(25,424)				(25,424)
Ending balance (in shares) at Jun. 30, 2023			127,088,963
Ending balance at Jun. 30, 2023	$ 1,511,501		$ 1,271	1,022,189	657,292		(169,251)
Beginning balance (in shares) at Dec. 31, 2023	127,110,453		127,110,453
Beginning balance at Dec. 31, 2023	$ 1,551,317		$ 1,271	1,024,852	674,686		(149,492)
Comprehensive income:
Net income	33,910				33,910
Other comprehensive income (loss), net of tax	19,408						19,408
Total comprehensive income	53,318				33,910		19,408
Exercise of stock options (in shares)			6,392
Exercise of stock options	81			81
Stock-based compensation expense (in shares)			203,978
Stock-based compensation expense	2,772		$ 2	2,770
Stock-based compensation forfeited (in shares)			(12,826)
Dividends paid	$ (50,890)				(50,890)
Ending balance (in shares) at Jun. 30, 2024	127,307,997		127,307,997
Ending balance at Jun. 30, 2024	$ 1,556,598		$ 1,273	1,027,703	657,706		(130,084)
Beginning balance (in shares) at Mar. 31, 2024			127,253,189
Beginning balance at Mar. 31, 2024	1,552,449		$ 1,273	1,026,173	678,427		(153,424)
Comprehensive income:
Net income	4,747				4,747
Other comprehensive income (loss), net of tax	23,340						23,340
Total comprehensive income	28,087				4,747		23,340
Exercise of stock options (in shares)			6,382
Exercise of stock options	61			61
Stock-based compensation expense (in shares)			57,892
Stock-based compensation expense	1,469			1,469
Stock-based compensation forfeited (in shares)			(9,466)
Dividends paid	$ (25,468)				(25,468)
Ending balance (in shares) at Jun. 30, 2024	127,307,997		127,307,997
Ending balance at Jun. 30, 2024	$ 1,556,598		$ 1,273	$ 1,027,703	$ 657,706		$ (130,084)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Stockholders' Equity [Abstract]
Other comprehensive income (loss), net of tax	$ (7,487)	$ 1,684	$ (13,918)	$ (1,472)
Dividends paid, per share (in dollars per share)	$ 0.20	$ 0.20	$ 0.40	$ 0.40

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities:
Net income	$ 33,910	$ 66,723
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	3,065	13,926
Loss on sale of investments	39,413	8,306
Net (gain)/loss on sale of assets	(5,468)	691
Mortgage banking activity	(1,625)	(30)
Gain on sale of SBA loans	(2,265)	(1,112)
Gain on sale of mortgage servicing rights	0	(8,305)
Net depreciation, amortization and accretion	10,975	8,798
Decrease/(increase) in other assets	9,938	(34,351)
Increase/(decrease) in other liabilities	8,375	(2,545)
Net amortization on marketable securities	852	1,724
Noncash compensation expense related to stock benefit plans	2,772	2,045
Noncash write-down of other assets	5,795	37
Deferred income tax expense	2,907	1,010
Origination of loans held-for-sale	(99,421)	(82,984)
Proceeds from sale of loans held-for-sale	102,134	78,822
Net cash provided by operating activities	111,357	52,755
Investing activities:
Purchase of marketable securities available-for-sale	(318,280)	(23,502)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	30,254	32,998
Proceeds from maturities and principal reductions of marketable securities available-for-sale	40,455	57,276
Proceeds from sale of marketable securities available-for-sale	275,585	101,229
Proceeds from bank-owned life insurance	874	1,633
Loan originations	(1,969,342)	(2,024,737)
Proceeds from sale of mortgage servicing rights	0	13,118
Proceeds from loan maturities and principal reductions	2,020,162	1,673,841
Net proceeds/(redemptions) of FHLB stock	9,304	(4,470)
Proceeds from sale of real estate owned	638	1,257
Purchases of premises and equipment, net	(1,988)	(1,330)
Net cash provided by/(used in) investing activities	87,662	(172,687)
Financing activities:
Net increase in deposits	107,477	197,847
Net decrease in short-term borrowings	(156,532)	(48,852)
Increase in advances by borrowers for taxes and insurance	7,018	9,530
Cash dividends paid on common stock	(50,890)	(50,829)
Proceeds from stock options exercised	81	498
Net cash (used in)/provided by financing activities	(92,846)	108,194
Net increase/(decrease) in cash and cash equivalents	106,173	(11,738)
Cash and cash equivalents at beginning of period	122,260	139,365
Net increase/(decrease) in cash and cash equivalents	106,173	(11,738)
Cash and cash equivalents at end of period	228,433	127,627
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $81,238 and $30,790, respectively)	109,260	56,218
Income taxes	13,972	24,106
Non-cash activities:
Loan foreclosures and repossessions	2,294	1,803
Sale of real estate owned financed by the Company	$ 0	$ 70

CONSOLIDATED STATEMENTS OF CA_2

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Statement of Cash Flows [Abstract]
Interest on deposits and borrowings, interest credited to deposit accounts	$ 81,238	$ 30,790

Basis of Presentation and Infor

Basis of Presentation and Informational Disclosures	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Informational Disclosures	Basis of Presentation and Informational Disclosures Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Columbus, Ohio, is a bank holding company regulated by the Board of Governors of the Federal Reserve System (“FRB”). The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”). Northwest is regulated by the Federal Deposit Insurance Corporation (“FDIC”) and the Pennsylvania Department of Banking. Northwest operates 139 community-banking offices throughout Pennsylvania, Western New York, Eastern Ohio, and Indiana. The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Great Northwest Corporation, and Mutual Federal Interest Company, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information or footnotes required for complete annual financial statements. In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included. The Consolidated Financial Statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 updated, as required, for any new pronouncements or changes. Certain items previously reported have been reclassified to conform to the current year’s reporting format. The results of operations for the quarter ended June 30, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024, or any other period. Recently Adopted Accounting Standards In March 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2023-02, " Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method

Marketable Securities

Marketable Securities	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Marketable Securities The following table shows the portfolio of marketable securities available-for-sale at June 30, 2024 (in thousands): Amortized Gross Gross Fair Debt issued by the U.S government and agencies: Due after ten years $ 47,263 — (10,292) 36,971 Debt issued by government-sponsored enterprises: Due after one year through five years 185 — (5) 180 Municipal securities: Due after one year through five years 880 8 (3) 885 Due after five years through ten years 9,157 5 (1,565) 7,597 Due after ten years 58,872 13 (8,626) 50,259 Corporate debt issues: Due after five years through ten years 14,373 20 (886) 13,507 Due after ten years 3,250 — — 3,250 Mortgage-backed securities: Fixed rate pass-through 228,855 83 (16,874) 212,064 Variable rate pass-through 4,093 24 (13) 4,104 Fixed rate agency CMOs 789,673 293 (135,258) 654,708 Variable rate agency CMOs 45,753 38 (125) 45,666 Total mortgage-backed securities 1,068,374 438 (152,270) 916,542 Total marketable securities available-for-sale $ 1,202,354 484 (173,647) 1,029,191 The following table shows the portfolio of marketable securities available-for-sale at December 31, 2023 (in thousands): Amortized Gross Gross Fair Debt issued by the U.S. government and agencies: Due after one year through five years $ 20,000 — (1,135) 18,865 Due after ten years 49,383 — (9,934) 39,449 Debt issued by government-sponsored enterprises: Due after one year through five years 45,986 — (5,763) 40,223 Due after five years through ten years 386 — (12) 374 Municipal securities: Due after one year through five years 4,279 22 (427) 3,874 Due after five years through ten years 20,725 — (1,437) 19,288 Due after ten years 60,762 125 (8,580) 52,307 Corporate debt issues: Due after five years through ten years 8,466 — (778) 7,688 Mortgage-backed securities: Fixed rate pass-through 209,069 27 (25,222) 183,874 Variable rate pass-through 7,140 11 (71) 7,080 Fixed rate agency CMOs 789,842 — (143,055) 646,787 Variable rate agency CMOs 23,965 38 (453) 23,550 Total mortgage-backed securities 1,030,016 76 (168,801) 861,291 Total marketable securities available-for-sale $ 1,240,003 223 (196,867) 1,043,359 The following table shows the portfolio of marketable securities held-to-maturity at June 30, 2024 (in thousands): Amortized Gross Gross Fair Debt issued by government-sponsored enterprises: Due after one year through five years $ 89,472 — (10,845) 78,627 Due after five years through ten years 34,988 — (5,645) 29,343 Mortgage-backed securities: Fixed rate pass-through 140,245 — (21,704) 118,541 Variable rate pass-through 414 — (4) 410 Fixed rate agency CMOs 518,560 — (82,714) 435,846 Variable rate agency CMOs 529 — (4) 525 Total mortgage-backed securities 659,748 — (104,426) 555,322 Total marketable securities held-to-maturity $ 784,208 — (120,916) 663,292 The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2023 (in thousands): Amortized Gross Gross Fair Debt issued by government-sponsored enterprises: Due after one year through five years $ 69,471 — (8,100) 61,371 Due after five years through ten years 54,987 — (8,700) 46,287 Mortgage-backed securities: Fixed rate pass-through 147,874 — (20,834) 127,040 Variable rate pass-through 449 1 — 450 Fixed rate agency CMOs 541,529 — (77,694) 463,835 Variable rate agency CMOs 529 — (6) 523 Total mortgage-backed securities 690,381 1 (98,534) 591,848 Total marketable securities held-to-maturity $ 814,839 1 (115,334) 699,506 The following table shows the contractual maturity of our mortgage-backed securities available-for-sale at June 30, 2024 (in thousands): Amortized Fair Mortgage-backed securities: Due within one year $ 74 75 Due after one year through five years 11,289 11,185 Due after five years through ten years 8,021 7,022 Due after ten years 1,048,990 898,260 Total mortgage-backed securities $ 1,068,374 916,542 The following table shows the contractual maturity of our mortgage-backed securities held-to-maturity at June 30, 2024 (in thousands): Amortized Fair Mortgage-backed securities: Due within one year $ 102 100 Due after one year through five years 20,010 17,581 Due after five years through ten years 20,201 16,321 Due after ten years 619,435 521,320 Total mortgage-backed securities $ 659,748 555,322 The following table shows the fair value of and gross unrealized losses on available-for-sale investment securities and held to maturity investment securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at June 30, 2024 (in thousands): Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. government-sponsored enterprises $ — — 145,120 (26,787) 145,120 (26,787) Municipal securities 13,977 (140) 39,354 (10,054) 53,331 (10,194) Corporate issues 2,395 (38) 7,619 (848) 10,014 (886) Mortgage-backed securities - agency 247,747 (1,059) 1,170,983 (255,637) 1,418,730 (256,696) Total $ 264,119 (1,237) 1,363,076 (293,326) 1,627,195 (294,563) The following table shows the fair value of and gross unrealized losses on available-for-sale investment securities and held to maturity investment securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2023 (in thousands): Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. government-sponsored enterprises $ — — 206,569 (33,644) 206,569 (33,644) Corporate debt issues — — 7,688 (778) 7,688 (778) Municipal securities 2,753 (81) 66,046 (10,363) 68,799 (10,444) Mortgage-backed securities - agency 17,976 (242) 1,423,707 (267,093) 1,441,683 (267,335) Total $ 20,729 (323) 1,704,010 (311,878) 1,724,739 (312,201) The Company does not believe that the available-for-sale debt securities that were in an unrealized loss position as of June 30, 2024, which were comprised of 387 individual securities, represents a credit loss impairment. All of these securities were issued by U.S. government agencies, U.S. government-sponsored enterprises, local municipalities, or represent corporate debt. The securities issued by the U.S. government agencies or U.S. government-sponsored enterprises are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The securities issued by local municipalities and the corporate debt issues were all highly rated by major rating agencies and have no history of credit losses. The unrealized losses were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities. As of June 30, 2024, t he Company does not have the intent to sell these investment securities and it is more likely than not that we will not be required to sell these securities before their anticipated recovery, which may be at maturity. All of the Company ’ s held-to-maturity debt securities are issued by U.S. government agencies or U.S. government-sponsored enterprises. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The decline in fair value of the held-to-maturity debt securities were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities, therefore, the Company did not record an allowance for credit losses for these securities as of June 30, 2024. The following table presents the credit quality of our held-to-maturity securities, based on the latest information available as of June 30, 2024 (in thousands). The credit ratings are sourced from nationally recognized rating agencies, which include Moody’s and S&P, and they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of June 30, 2024. AA+ Total Held-to-maturity securities (at amortized cost): Debt issued by the U.S. government-sponsored enterprises $ 124,460 124,460 Mortgage-backed securities 659,748 659,748 Total marketable securities held-to-maturity $ 784,208 784,208

Loans Receivable

Loans Receivable	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Loans Receivable	Loans Receivable The following table shows a summary of our loans receivable at amortized cost basis at June 30, 2024 and December 31, 2023 (in thousands): June 30, 2024 December 31, 2023 Originated (1) Acquired (2) Total Originated (1) Acquired (2) Total Personal Banking: Residential mortgage loans (3) $ 3,189,086 134,982 3,324,068 3,283,299 144,886 3,428,185 Home equity loans 1,069,569 110,917 1,180,486 1,103,410 124,448 1,227,858 Vehicle loans 1,905,878 55,050 1,960,928 1,943,540 65,061 2,008,601 Consumer loans 113,860 5,270 119,130 111,446 5,980 117,426 Total Personal Banking 6,278,393 306,219 6,584,612 6,441,695 340,375 6,782,070 Commercial Banking: Commercial real estate loans (4) 2,445,069 219,947 2,665,016 2,389,537 238,920 2,628,457 Commercial real estate loans - owner occupied 338,014 24,608 362,622 319,195 26,358 345,553 Commercial loans 1,712,839 29,275 1,742,114 1,623,481 35,248 1,658,729 Total Commercial Banking 4,495,922 273,830 4,769,752 4,332,213 300,526 4,632,739 Total loans receivable, gross 10,774,315 580,049 11,354,364 10,773,908 640,901 11,414,809 Allowance for credit losses (119,575) (5,495) (125,070) (118,079) (7,164) (125,243) Total loans receivable, net (5) $ 10,654,740 574,554 11,229,294 10,655,829 633,737 11,289,566 (1) Includes originated and loan pools purchased in an asset acquisition. (2) Includes loans subject to purchase accounting in a business combination. (3) Includes $9 million of loans held-for-sale at June 30, 2024 and December 31, 2023. (4) Includes $681,000 and $0 of loans held-for-sale at June 30, 2024 and December 31, 2023, respectively. (5) Includes $65 million and $68 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at June 30, 2024 and December 31, 2023. The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2024 (in thousands): Balance as of June 30, 2024 Current period provision Charge-offs Recoveries Balance as of March 31, 2024 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 14,999 (2,375) (252) 805 16,821 Home equity loans 5,210 (279) (237) 392 5,334 Vehicle loans 21,364 1,767 (1,926) 462 21,061 Consumer loans 1,668 434 (635) 417 1,452 Total Personal Banking 43,241 (453) (3,050) 2,076 44,668 Commercial Banking: Commercial real estate loans 50,559 (3,785) (500) 370 54,474 Commercial real estate loans - owner occupied 3,615 (453) — 13 4,055 Commercial loans 27,655 6,860 (1,319) 414 21,700 Total Commercial Banking 81,829 2,622 (1,819) 797 80,229 Total $ 125,070 2,169 (4,869) 2,873 124,897 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 1 — — — 1 Home equity loans 63 (1) — — 64 Total Personal Banking 64 (1) — — 65 Commercial Banking: Commercial real estate loans 4,450 (1,768) — — 6,218 Commercial real estate loans - owner occupied 151 (3) — — 154 Commercial loans 9,120 (767) — — 9,887 Total Commercial Banking 13,721 (2,538) — — 16,259 Total off-balance sheet exposure $ 13,785 (2,539) — — 16,324 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2023 (in thousands): Balance as of June 30, 2023 Current period provision Charge-offs Recoveries Balance as of March 31, 2023 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 17,556 (1,676) (545) 539 19,238 Home equity loans 5,002 (456) (235) 212 5,481 Vehicle loans 27,283 2,030 (1,539) 626 26,166 Consumer loans 1,010 1,231 (1,233) 280 732 Total Personal Banking 50,851 1,129 (3,552) 1,657 51,617 Commercial Banking: Commercial real estate loans 50,056 4,576 (415) 491 45,404 Commercial real estate loans - owner occupied 3,498 189 (68) 26 3,351 Commercial loans 20,018 116 (1,209) 226 20,885 Total Commercial Banking 73,572 4,881 (1,692) 743 69,640 Total $ 124,423 6,010 (5,244) 2,400 121,257 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 4 1 — — 3 Home equity loans 64 4 — — 60 Total Personal Banking 68 5 — — 63 Commercial Banking: Commercial real estate loans 7,655 1,731 — — 5,924 Commercial real estate loans - owner occupied 320 (121) — — 441 Commercial loans 7,916 1,305 — — 6,611 Total Commercial Banking 15,891 2,915 — — 12,976 Total off-balance sheet exposure $ 15,959 2,920 — — 13,039 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2024 (in thousands): Balance Current period provision Charge-offs Recoveries Balance December 31, 2023 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 14,999 (3,774) (414) 994 18,193 Home equity loans 5,210 (134) (649) 590 5,403 Vehicle loans 21,364 (1,927) (4,514) 894 26,911 Consumer loans 1,668 2,283 (2,620) 806 1,199 Total Personal Banking 43,241 (3,552) (8,197) 3,284 51,706 Commercial Banking: Commercial real estate loans 50,559 (712) (849) 853 51,267 Commercial real estate loans - owner occupied 3,615 (181) — 21 3,775 Commercial loans 27,655 10,848 (2,482) 794 18,495 Total Commercial Banking 81,829 9,955 (3,331) 1,668 73,537 Total $ 125,070 6,403 (11,528) 4,952 125,243 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 1 (1) — — 2 Home equity loans 63 (2) — — 65 Total Personal Banking 64 (3) — — 67 Commercial Banking: Commercial real estate loans 4,450 (1,697) — — 6,147 Commercial real estate loans - owner occupied 151 (22) — — 173 Commercial loans 9,120 (1,616) — — 10,736 Total Commercial Banking 13,721 (3,335) — — 17,056 Total off-balance sheet exposure $ 13,785 (3,338) — — 17,123 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2023 (in thousands): Balance Current period provision Charge-offs Recoveries ASU 2022-02 Adoption Balance December 31, 2022 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 17,556 (1,677) (752) 724 — 19,261 Home equity loans 5,002 (906) (399) 405 — 5,902 Vehicle loans 27,283 6,283 (3,207) 1,148 — 23,059 Consumer loans 1,010 2,027 (2,299) 617 — 665 Total Personal Banking 50,851 5,727 (6,657) 2,894 — 48,887 Commercial Banking: Commercial real estate loans 50,056 4,697 (1,072) 1,499 426 44,506 Commercial real estate loans - owner occupied 3,498 (485) (68) 47 — 4,004 Commercial loans 20,018 941 (2,074) 512 — 20,639 Total Commercial Banking 73,572 5,153 (3,214) 2,058 426 69,149 Total $ 124,423 10,880 (9,871) 4,952 426 118,036 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 4 — — — — 4 Home equity loans 64 (10) — — — 74 Total Personal Banking 68 (10) — — — 78 Commercial Banking: Commercial real estate loans 7,655 2,280 — — — 5,375 Commercial real estate loans - owner occupied 320 (59) — — — 379 Commercial loans 7,916 835 — — — 7,081 Total Commercial Banking 15,891 3,056 — — — 12,835 Total off-balance sheet exposure $ 15,959 3,046 — — — 12,913 The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at June 30, 2024 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 3,324,068 14,999 6,403 1,390 Home equity loans 1,180,486 5,210 4,055 34 Vehicle loans 1,960,928 21,364 4,342 8 Consumer loans 119,130 1,668 267 570 Total Personal Banking 6,584,612 43,241 15,067 2,002 Commercial Banking: Commercial real estate loans 2,665,016 50,559 73,989 185 Commercial real estate loans - owner occupied 362,622 3,615 983 — Commercial loans 1,742,114 27,655 12,120 324 Total Commercial Banking 4,769,752 81,829 87,092 509 Total $ 11,354,364 125,070 102,159 2,511 The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2023 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 3,428,185 18,193 8,727 1,671 Home equity loans 1,227,858 5,403 4,492 26 Vehicle loans 2,008,601 26,911 4,816 44 Consumer loans 117,426 1,199 229 722 Total Personal Banking 6,782,070 51,706 18,264 2,463 Commercial Banking: Commercial real estate loans 2,628,457 51,267 71,297 225 Commercial real estate loans - owner occupied 345,553 3,775 676 — Commercial loans 1,658,729 18,495 4,147 10 Total Commercial Banking 4,632,739 73,537 76,120 235 Total $ 11,414,809 125,243 94,384 2,698 We present the amortized cost of our loans on nonaccrual status including such loans with no allowance. The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the period ended June 30, 2024 (in thousands): June 30, 2024 Nonaccrual loans at January 1, 2024 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total nonaccrual loans at the end of the period Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 8,727 5,803 600 6,403 1,390 Home equity loans 4,492 3,907 148 4,055 34 Vehicle loans 4,816 3,585 757 4,342 8 Consumer loans 229 257 10 267 570 Total Personal Banking 18,264 13,552 1,515 15,067 2,002 Commercial Banking: Commercial real estate loans 71,297 52,491 21,498 73,989 185 Commercial real estate loans - owner occupied 676 983 — 983 — Commercial loans 4,147 11,944 176 12,120 324 Total Commercial Banking 76,120 65,418 21,674 87,092 509 Total $ 94,384 78,970 23,189 102,159 2,511 During the three and six months ended June 30, 2024, we did not recognize any interest income on nonaccrual loans. The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the year ended December 31, 2023 (in thousands): December 31, 2023 Nonaccrual loans at January 1, 2023 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total nonaccrual loans at the end of the period Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 7,574 8,304 423 8,727 1,671 Home equity loans 4,145 4,084 408 4,492 26 Vehicle loans 3,771 4,187 629 4,816 44 Consumer loans 256 229 — 229 722 Total Personal Banking 15,746 16,804 1,460 18,264 2,463 Commercial Banking: Commercial real estate loans 62,239 47,359 23,938 71,297 225 Commercial real estate loans - owner occupied 624 676 — 676 — Commercial loans 2,627 3,996 151 4,147 10 Total Commercial Banking 65,490 52,031 24,089 76,120 235 Total $ 81,236 68,835 25,549 94,384 2,698 During the year ended December 31, 2023, we did not recognize any interest income on nonaccrual loans. A loan is considered to be collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. The following table presents the amortized cost basis of collateral-dependent loans by class of loans and collateral type as of as of June 30, 2024 (in thousands): Real estate Equipment Total Commercial Banking: Commercial real estate loans 67,688 1,485 69,173 Commercial loans 3,019 5,062 8,081 Total Commercial Banking 70,707 6,547 77,254 Total $ 70,707 6,547 77,254 The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2023 (in thousands): Real estate Total Commercial Banking: Commercial real estate loans $ 66,934 66,934 Commercial loans 150 150 Total Commercial Banking 67,084 67,084 Total $ 67,084 67,084 Occasionally, the Company modifies loans to borrowers in financial distress by providing principal forgiveness, term extensions, an other-than-insignificant payment delay, or interest rate reduction. When principal forgiveness is provided, the amount of forgiveness is charged off against the allowance for credit losses. In some cases, the Company provides multiple types of concessions to one loan. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, such as principal forgiveness, may be granted. For loans included in the "combination" columns below, multiple types of modifications have been made on the same loan within the current reporting period. The combination is at least two of the following: a term extension, principal forgiveness, an other-than-insignificant payment delay, and/or an interest rate reduction. The following table presents the amortized cost basis of loans for the periods indicated that were both experiencing financial difficulty and modified during the respective period, by class and by type of modification. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financial receivable is also presented below (dollars in thousands). For the quarter ended June 30, 2024 2023 Term extension Interest rate reduction Total class of financing receivable Term extension Total class of financing receivable Personal Banking: Residential mortgage loans $ 15 — 0.00 % 82 0.00 % Home equity loans 42 — 0.00 % 118 0.01 % Total Personal Banking 57 — 0.00 % 200 0.00 % Commercial Banking: Commercial real estate loans - owner occupied — 697 0.19 % — — % Total Commercial Banking — 697 0.01 % — — % Total $ 57 697 0.01 % 200 0.00 % For the six months ended June 30, 2024 2023 Payment delay Term extension Interest rate reduction Combination term extension and interest rate reduction Total class of financing receivable Term extension Combination term extension and interest rate reduction Total class of financing receivable Personal Banking: Residential mortgage loans $ — 497 — — 0.01 % 262 — 0.01 % Home equity loans — 551 — 84 0.05 % 166 — 0.01 % Consumer loans — — — 2 — % — 3 — % Total Personal Banking — 1,048 — 86 0.02 % 428 3 0.01 % Commercial Banking: Commercial real estate loans 29,764 210 — — 1.12 % 220 — 0.01 % Commercial real estate loans - owner occupied — — 697 — 0.19 % — — — % Commercial loans — 31 — 9 — % 660 — 0.05 % Total Commercial Banking 29,764 241 697 9 0.64 % 880 — 0.02 % Total $ 29,764 1,289 697 95 0.28 % 1,308 3 0.01 % As of June 30, 2024 and June 30, 2023, t he Company has committed to lend additional amounts totaling $41,000 and $31,000, respectively, to the borrowers experiencing financial difficulty for which the terms of the loan have been modified. The following table presents the effect of the loan modifications presented above to borrowers experiencing financial difficulty for the periods indicated: For the quarter ended June 30, 2024 2023 Weighted-average interest rate reduction Weighted-average term extension in months Weighted-average term extension in months Personal Banking: Residential mortgage loans — % 220 100 Home equity loans — % 73 42 Consumer loans — % 0 9 Total Personal Banking — % 112 66 Commercial Banking: Commercial real estate loans - owner occupied 2 % 0 0 Total Commercial Banking 2 % 0 0 Total loans 2 % 0 66 For the six months ended June 30, 2024 2023 Weighted-average interest rate reduction Weighted-average term extension in months Weighted-average payment deferral in years Weighted-average interest rate reduction Weighted-average term extension in months Personal Banking: Residential mortgage loans — % 145 0 — % 132 Home equity loans 2 % 97 0 — % 73 Consumer loans 12 % 356 0 12 % 319 Total Personal Banking 2 % 119 0 12 % 111 Commercial Banking: Commercial real estate loans — % 117 1 — % 25 Commercial real estate loans - owner occupied 2 % 0 0 — % 0 Commercial loans 4 % 118 0 — % 9 Total Commercial Banking 2 % 117 1 — % 13 Total loans 2 % 118 1 12 % 45 The Company closely monitors the performance of loans that are modified to borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts. The following table presents the performance of loans modified within the previous twelve months of June 30, 2024 (in thousands) : Current 30-59 days 60-89 days 90 days or Personal Banking: Residential mortgage loans $ 492 — — 5 Home equity loans 533 90 12 — Consumer loans 2 — — — Total Personal Banking 1,027 90 12 5 Commercial Banking: Commercial real estate loans 29,974 — — — Commercial real estate loans - owner occupied 697 — — — Commercial loans 10 5 — 25 Total Commercial Banking 30,681 5 — 25 Total loans $ 31,708 95 12 30 The following table presents the performance of loans modified since the adoption of ASU 2022-02 as of June 30, 2023 (in thousands) : Current 30-59 days 60-89 days 90 days or Personal Banking: Residential mortgage loans $ 262 — — — Home equity loans 166 — — — Consumer loans 3 — — — Total Personal Banking 431 — — — Commercial Banking: Commercial real estate loans 81 139 — — Commercial loans — 660 — — Total Commercial Banking 81 799 — — Total loans $ 512 799 — — A modification is considered to be in default when the loan is 90 days or more past due. The following table provides the amortized cost basis of financing receivables that had a payment default during the period ended June 30, 2024 and were modified within the previous twelve months to borrowers experiencing financial difficulty (in thousands) : Term extension Personal Banking: Residential mortgage loans $ 5 Total Personal Banking 5 Commercial Banking: Commercial loans 25 Total Commercial Banking 25 Total $ 30 No loans modified since the adoption of ASU 2022-02 subsequently defaulted during the quarter ended June 30, 2023. The modifications to borrowers experiencing financial distress are included in their respective portfolio segment and the current loan balance and updated loan terms are run through their respective ACL models to arrive at the quantitative portion of the ACL. Subsequent performance of the loans will be measured by delinquency status and will be captured through our ACL models or our qualitative factor assessment, as deemed appropriate. If we no longer believe the loan demonstrates similar risks to their respective portfolio segment an individual assessment will be performed. Upon the Company's determination that a modified loan (or portion of a loan) has subsequently been deemed uncollectible, the loan (or a portion of the loan) is written off. Therefore, the amortized cost basis of the loan is reduced by the uncollectible amount and the allowance for credit losses is adjusted by the same amount. The following table provides information related to the amortized cost basis of loan payment delinquencies at June 30, 2024 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 616 8,223 5,553 14,392 3,309,676 3,324,068 1,390 Home equity loans 3,771 1,065 2,506 7,342 1,173,144 1,180,486 34 Vehicle loans 9,759 2,774 2,191 14,724 1,946,204 1,960,928 8 Consumer loans 613 424 821 1,858 117,272 119,130 570 Total Personal Banking 14,759 12,486 11,071 38,316 6,546,296 6,584,612 2,002 Commercial Banking: Commercial real estate loans 3,893 2,736 5,882 12,511 2,652,505 2,665,016 185 Commercial real estate loans - owner occupied 417 419 152 988 361,634 362,622 — Commercial loans 4,366 8,732 3,385 16,483 1,725,631 1,742,114 324 Total Commercial Banking 8,676 11,887 9,419 29,982 4,739,770 4,769,752 509 Total loans $ 23,435 24,373 20,490 68,298 11,286,066 11,354,364 2,511 The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2023 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 30,041 7,796 7,995 45,832 3,382,353 3,428,185 1,671 Home equity loans 5,761 982 3,126 9,869 1,217,989 1,227,858 26 Vehicle loans 10,382 3,326 3,051 16,759 1,991,842 2,008,601 44 Consumer loans 829 428 927 2,184 115,242 117,426 722 Total Personal Banking 47,013 12,532 15,099 74,644 6,707,426 6,782,070 2,463 Commercial Banking: Commercial real estate loans 2,010 1,031 6,535 9,576 2,618,881 2,628,457 225 Commercial real estate loans - owner occupied 1,194 — 177 1,371 344,182 345,553 — Commercial loans 4,196 703 2,780 7,679 1,651,050 1,658,729 10 Total Commercial Banking 7,400 1,734 9,492 18,626 4,614,113 4,632,739 235 Total originated loans $ 54,413 14,266 24,591 93,270 11,321,539 11,414,809 2,698 Credit Quality Indicators: For Commercial Banking we categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze loans individually by classifying the loans by credit risk. Credit relationships greater than or equal to $1.0 million classified as special mention or substandard are reviewed quarterly for deterioration or improvement to determine if the loan is appropriately classified. We use the following definitions for risk ratings other than pass: Special Mention — Loans designated as special mention have specific, well-defined risk issues, which create a high level of uncertainty regarding the long-term viability of the business. Loans in this class are considered to have high-risk characteristics. A special mention loan exhibits material negative financial trends due to company-specific or systemic conditions. If these potential weaknesses are not mitigated, they threaten the borrower’s capacity to meet its debt obligations. Special mention loans still demonstrate sufficient financial flexibility to react to and positively address the root cause of the adverse financial trends without significant deviations from their current business strategy. Their potential weaknesses deserve our close attention and warrant enhanced monitoring. Substandard — Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified as substandard. In addition, those weaknesses make collection or liquidation in full highly questionable and improbable. A loan classified as doubtful exhibits discernible loss potential, but a complete loss seems very unlikely. The possibility of a loss on a doubtful loan is high, but because of certain important and reasonably specific pending factors that may strengthen the loan, its classification as an estimated loss is deferred until a more exact status can be determined. Loss — Loans classified as loss are considered uncollectible and of such value that the continuance as a loan is not warranted. A loss classification does not mean that the loan has no recovery or salvage value; instead, it means that it is not practical or desirable to defer writing off all or a portion of a basically worthless loan even though partial recovery may be possible in the future. For Personal Banking loans a pass risk rating is maintained until they are 90 days or greater past due, and risk rating reclassification is based primarily on past due status of the loan. The risk rating categories can generally be described by the following groupings: Pass — Loans classified as pass are homogeneous loans that are less than 90 days past due from the required payment date at month-end. Substandard — Loans classified as substandard are homogeneous loans that are greater than 90 days past due from the required payment date at month-end, or homogenous retail loans that are greater than 180 days past due from the required payment date at month-end that has been written down to the value of underlying collateral, less costs to sell. Doubtful — Loans classified as doubtful are homogeneous loans that are greater than 180 days past due from the required payment date at month-end and not written down to the value of underlying collateral. These loans are generally charged-off in the month in which the 180 day period elapses. The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator and the current period charge-offs by year of origination for each portfolio segment as of June 30, 2024 (in thousands): YTD June 30, 2024 2023 2022 2021 2020 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 16,707 197,466 646,931 770,828 488,009 1,192,427 — — 3,312,368 Substandard — 51 1,644 376 838 8,791 — — 11,700 Total residential mortgage loans 16,707 197,517 648,575 771,204 488,847 1,201,218 — — 3,324,068 Residential mortgage current period charge-offs — — (250) — (114) (50) — — (414) Home equity loans Pass 12,105 64,074 93,892 97,376 135,246 263,136 465,532 44,826 1,176,187 Substandard — — 130 54 233 1,275 1,361 1,246 4,299 Total home equity loans 12,105 64,074 94,022 97,430 135,479 264,411 466,893 46,072 1,180,486 Home equity current period charge-offs — — (40) (2) — (320) (228) (59) (649) Vehicle loans Pass 352,639 558,240 556,097 307,322 95,012 87,268 — — 1,956,578 Substandard 34 784 1,400 1,352 253 527 — — 4,350 Total vehicle loans 352,673 559,024 557,497 308,674 95,265 87,795 — — 1,960,928 Vehicle current period charge-offs (61) (1,153) (1,261) (1,207) (213) (619) — — (4,514) Consumer loans Pass 15,714 19,085 8,647 3,966 1,328 5,123 63,732 696 118,291 Substandard 8 88 40 21 — 18 569 95 839 Total consumer loans 15,722 19,173 8,687 3,987 1,328 5,141 64,301 791 119,130 Consumer loan current period charge-offs 202 (1,444) (325) (162) (27) (508) (333) (23) (2,620) Total Personal Banking 397,207 839,788 1,308,781 1,181,295 720,919 1,558,565 531,194 46,863 6,584,612 Commercial Banking: Commercial real estate loans Pass 97,120 236,451 509,501 269,475 300,353 906,187 26,428 24,099 2,369,614 Special mention — 3,311 25,879 39,250 15,583 17,823 805 — 102,651 Substandard 1,485 3,621 2,061 54,971 18,673 111,759 102 79 192,751 Total commercial real estate loans 98,605 243,383 537,441 363,696 334,609 1,035,769 27,335 24,178 2,665,016 Commercial real estate current period charge-offs — — (44) (360) — (445) — — (849) Commercial real estate loans - owner occupied Pass 47,702 13,022 34,667 46,645 13,637 152,801 3,397 1,281 313,152 Special mention — 2,200 3,211 1,307 — 21,510 — — 28,228 Substandard — 11,869 — — 3,334 4,368 — 1,671 21,242 Total commercial real estate loans - owner occupied 47,702 27,091 37,878 47,952 16,971 178,679 3,397 2,952 362,622 Commercial real estate - owner occupied current period charge-offs — — — — — — — — — Commercial loans Pass 322,393 402,521 298,891 35,474 15,652 64,712 530,098 3,311 1,673,052 Special mention 7,740 27,814 4,871 583 284 166 4,788 1,154 47,400 Substandard — 8,199 3,998 889 136 1,775 4,531 2,134 21,662 Total commercial loans 330,133 438,534 307,760 36,946 16,072 66,653 539,417 6,599 1,742,114 Commercial loans current period charge-offs — (47) (1,787) (115) (182) (266) (75) (10) (2,482) Total Commercial Banking 476,440 709,008 883,079 448,594 367,652 1,281,101 570,149 33,729 4,769,752 Total loans $ 873,647 1,548,796 2,191,860 1,629,889 1,088,571 2,839,666 1,101,343 80,592 11,354,364 For the six months ended June 30, 2024, $10 million of revolving loans were converted to term loans. The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of December 31, 2023 (in thousands): 2023 2022 2021 2020 2019 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 186,081 665,379 792,488 506,068 244,678 1,019,152 — — 3,413,846 Substandard — 1,581 — 1,252 311 11,195 — — 14,339 Total residential mortgage loans 186,081 666,960 792,488 507,320 244,989 1,030,347 — — 3,428,185 Residential mortgage current period charge-offs — (9) (5) (130) (23) (1,023) — — (1,189) Home equity loans Pass 71,497 100,639 106,043 146,121 94,144 197,259 463,868 43,526 1,223,097 Substandard — 236 54 197 35 1,733 1,447 1,059 4,761 Total home equity loans 71,497 100,875 106,097 146,318 94,179 198,992 465,315 44,585 1,227,858 Home equity current period charge-offs — (53) (46) — (48) (352) (144) (209) (852) Vehicle loans Pass 664,876 682,275 397,809 132,775 67,853 58,153 — — 2,003,741 Substandard 646 1,418 1,453 299 556 488 — — 4,860 Total vehicle loans 665,522 683,693 399,262 133,074 68,409 58,641 — — 2,008,601 Vehicle current period charge-offs (678) (1,844) (1,967) (475) (652) (853) — — (6,468) Consumer loans Pass 24,277 11,582 5,552 2,072 1,355 6,603 64,214 820 116,475 Substandard 55 43 19 6 6 46 726 50 951 Total consumer loans 24,332 11,625 5,571 2,078 1,361 6,649 64,940 870 117,426 Consumer loan current period charge-offs (3,412) (511) (390) (157) (177) (980) (317) (38) (5,983) Total Personal Banking 947,432 1,463,153 1,303,418 788,790 408,938 1,294,629 530,255 45,455 6,782,070 Commercial Banking: Commercial real estate loans Pass 223,335 470,762 303,873 332,620 228,382 745,244 27,583 24,804 2,356,603 Special Mention 2,819 24,735 27,871 5,365 4,053 38,665 711 — 104,219 Substandard 1,920 750 26,850 18,167 37,044 82,717 79 108 167,635 Total commercial real estate loans 228,074 496,247 358,594 356,152 269,479 866,626 28,373 24,912 2,628,457 Commercial real estate current period (14) — (492) — (51) (1,741) — — (2,298) Commercial real estate loans - Pass 24,725 51,986 47,655 15,984 28,614 140,175 2,378 2,390 313,907 Special Mention 1,221 120 1,218 — 14,386 2,952 — — 19,897 Substandard — — 118 1,666 4,646 4,641 — 678 11,749 Total commercial real estate loans - 25,946 52,106 48,991 17,650 47,646 147,768 2,378 3,068 345,553 Commercial real estate - owner occupied current period charge-offs — — — — — (68) — — (68) Commercial loans Pass 482,605 430,378 73,469 26,868 34,090 54,617 531,742 4,110 1,637,879 Special Mention 508 3,671 52 299 240 26 1,882 — 6,678 Substandard — 3,015 872 356 2,361 840 4,729 1,999 14,172 Total commercial loans 483,113 437,064 74,393 27,523 36,691 55,483 538,353 6,109 1,658,729 Commercial loans current period (35) (2,072) (517) (430) (205) (845) (60) (2) (4,166) Total Commercial Banking 737,133 985,417 481,978 401,325 353,816 1,069,877 569,104 34,089 4,632,739 Total loans $ 1,684,565 2,448,570 1,785,396 1,190,115 762,754 2,364,506 1,099,359 79,544 11,414,809 For the year ended December 31, 2023, $19 million of revolving loans were converted to term loans.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): June 30, 2024 December 31, 2023 Amortizable intangible assets: Core deposit intangibles - gross $ 74,899 74,899 Less: accumulated amortization (70,945) (69,609) Core deposit intangibles - net $ 3,954 5,290 Total intangible assets - net $ 3,954 5,290 The following table shows the actual aggregate amortization expense for the quarters ended June 30, 2024 and 2023, as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the succeeding fiscal years until the intangible assets are fully amortized (in thousands): For the quarter ended June 30, 2024 $ 635 For the quarter ended June 30, 2023 842 For the six months ended June 30, 2024 1,336 For the six months ended June 30, 2023 1,751 For the year ending December 31, 2024 2,452 For the year ending December 31, 2025 1,662 For the year ending December 31, 2026 871 For the year ending December 31, 2027 305 The following table provides information for the changes in the carrying amount of goodwill (in thousands): Total Balance at December 31, 2023 $ 380,997 Balance at June 30, 2024 $ 380,997 We performed our annual goodwill impairment test as of June 30, 2024 in accordance with Accounting Standards Codification ("ASC") 350, Intangibles - Goodwill and Other,

Borrowed Funds

Borrowed Funds	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds (a) Borrowings Borrowed funds at June 30, 2024 and December 31, 2023 are presented in the following table (dollars in thousands): June 30, 2024 December 31, 2023 Amount Average rate Amount Average rate Term notes payable to the FHLB of Pittsburgh, due within one year $ 175,000 5.65 % $ 175,000 5.71 % Notes payable to the FHLB of Pittsburgh, due within one year — — % 163,500 5.70 % Collateralized borrowings, due within one year 26,213 1.83 % 35,495 1.72 % Collateral received, due within one year 41,150 5.17 % 24,900 5.26 % Total borrowed funds $ 242,363 $ 398,895 Borrowings from the Federal Home Loan Bank (“FHLB”) of Pittsburgh, if any, are secured by our residential first mortgage and other qualifying loans. At June 30, 2024, the carrying value of these loans was $6.0 billion. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. The revolving line of credit with the FHLB of Pittsburgh carries a commitment of $250 million. The rate is adjusted daily by the FHLB of Pittsburgh, and any borrowings on this line may be repaid at any time without penalty. At June 30, 2024 there was no balance on the revolving line of credit, and at December 31, 2023 the balance was $164 million. At June 30, 2024 and December 31, 2023, collateralized borrowings due within one year were $26 million and $35 million, respectively. These borrowings are collateralized by cash or va rious securities held in safekeeping by the FHLB. At June 30, 2024, the carrying value of the cash and securities used as collateral was $36 million. At June 30, 2024 and December 31, 2023, collateral received was $41 million and $25 million, respectively. This represents collateral posted to us from our derivative counterparties. At June 30, 2024 and December 31, 2023, term notes payable to the FHLB of Pittsburgh due within one year were $175 million. The June 30, 2024 total is made up of seven advances: $25 million at 5.66% maturing July 26, 2024; $25 million at 5.68% maturing July 31, 2024; $25 million at 5.66% maturing August 9, 2024; $25 million at 5.65% maturing August 12, 2024; $25 million at 5.65% maturing August 12, 2024; $25 million at 5.65% maturing August 19, 2024; $25 million at 5.65% maturing August 30, 2024. On September 9, 2020, the Company issued $125 million of 4.00% fixed-to-floating rate subordinated notes with a maturity date of September 15, 2030. The subordinated notes, which qualify as Tier 2 capital, bear interest at an annual rate of 4.00%, payable semi-annually in arrears commencing on March 15, 2021, and a floating rate of interest equivalent to the 3-month Secured Overnight Financing Rate (“SOFR”) plus 3.89% payable quarterly in arrears commencing on December 15, 2025. During the year ended December 31, 2023 the Company repurchased $10 million of subordinated notes leaving $115 million of subordinated notes outstanding. The subordinated debt issuance costs of approximately $2 million are being amortized over five years on a straight-line basis into interest expense. At June 30, 2024 and December 31, 2023, subordinated debentures, net of issuance costs, were $114 million. For the six months ended June 30, 2024 and June 30, 2023 total interest expense paid on the subordinate notes was $2 million. (b) Trust Preferred Securities The Company has seven statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust, Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust, LNB Trust II, a Delaware statutory business trust, Union National Capital Trust I (“UNCT I”), a Delaware statutory business trust, Union National Capital Trust II (“UNCT II”), a Delaware statutory business trust, MFBC Statutory Trust I, a Delaware statutory trust, and Universal Preferred Trust, a Delaware statutory trust (the “Trusts”). The Trusts exist solely to issue preferred securities to third parties for cash, issue common securities to the Company in exchange for capitalization of the Trusts, invest the proceeds from the sale of trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. The Trusts have invested the proceeds of the offerings in junior subordinated deferrable interest debentures issued by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. These subordinated debentures are the sole assets of the Trusts. As the shareholders of the trust preferred securities are the primary beneficiaries of the Trusts, the Trusts are not consolidated in our financial statements. The following table sets forth a summary of the cumulative trust preferred securities and the junior subordinated debt held by the Trust as of the date listed (dollars in thousands). Maturity date Interest rate Capital debt securities June 30, 2024 December 31, 2023 Northwest Bancorp Capital Trust III December 30, 2035 3-month SOFR plus 1.38% $ 50,000 51,547 51,547 Northwest Bancorp Statutory Trust IV December 15, 2035 3-month SOFR plus 1.38% 50,000 51,547 51,547 LNB Trust II June 15, 2037 3-month SOFR plus 1.48% 7,875 8,119 8,119 Union National Capital Trust I (1) January 23, 2034 3-month SOFR plus 2.85% 8,000 8,012 7,999 Union National Capital Trust II (1) November 23, 2034 3-month SOFR plus 2.00% 3,000 2,809 2,796 MFBC Statutory Trust I (1) September 15, 2035 3-month SOFR plus 1.70% 5,000 3,840 3,788 Universal Preferred Trust (1) October 7, 2035 3-month SOFR plus 1.69% 5,000 3,829 3,778 $ 128,875 129,703 129,574 (1) Net of discounts due to the fair value adjustment made at the time of acquisition. Cash distributions on the trust securities are made on a quarterly basis to the extent interest on the debentures is received by the Trusts. We have the right to defer payment of interest on the subordinated debentures at any time, or from time-to-time, for periods not exceeding five years. If interest payments on the subordinated debentures are deferred, the distributions on the trust securities also are deferred. To date there have been no interest deferrals. Interest on the subordinated debentures and distributions on the trust securities is cumulative. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities. For each of the six month periods ended June 30, 2024 and June 30, 2023 total interest expense paid on trust preferred securities was $5 million and $4 million, respectively. The Trusts must redeem the preferred securities when the debentures are paid at maturity or upon an earlier redemption of the debentures to the extent the debentures are redeemed. All or part of the debentures may be redeemed at any time. Also, the debentures may be redeemed at any time if existing laws or regulations, or the interpretation or application of these laws or regulations, change causing: • the interest on the debentures to no longer be deductible by the Company for federal income tax purposes; • the trusts to become subject to federal income tax or to certain other taxes or governmental charges; • the trusts to register as an investment company; or • the preferred securities to no longer qualify as Tier I capital. We may, at any time, dissolve any of the Trusts and distribute the debentures to the trust security holders, subject to receipt of any required regulatory approvals.

Guarantees

Guarantees	6 Months Ended
	Jun. 30, 2024
Guarantees [Abstract]
Guarantees	Guarantees We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. We are required to perform under a standby letter of credit when drawn upon by the guaranteed third party in the case of nonperformance by our customer. The credit risk associated with standby letters of credit is essentially the same as that involved in extending loans to customers and is subject to normal loan underwriting procedures. Collateral may be obtained based on management’s credit assessment of the customer. At June 30, 2024, the maximum potential amount of future payments we could be required to make under these non-recourse standby letters of credit was $59 million, of which $43 million is fully collateralized. At June 30, 2024, we had a liability which represents deferred income of $1 million related to the standby letters of credit.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per common share (“EPS”) is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, without considering any dilutive items. Diluted EPS is calculated using both the two-class and the treasury stock methods with the more dilutive method used to determine diluted EPS. The two-class method was used to determine basic and diluted EPS for the three months ended June 30, 2024 and 2023 and the six month ended June 30, 2023, and and the treasury stock method was used to determined diluted earnings per share for the six months ended June 30, 2024. The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): Quarter ended June 30, Six months ended June 30, 2024 2023 2024 2023 Numerator for earnings per share - Basic and Diluted: Net income - treasury stock method - Basic and Diluted $ 4,747 33,044 33,910 66,723 Less: Dividends and undistributed earnings allocated to participating securities 7 86 47 174 Net income available to common shareholders - two class method - Basic and Diluted $ 4,740 32,958 33,863 66,549 Denominator for earnings per share - treasury stock method - Basic and Diluted: Weighted average common shares outstanding - Basic 127,023,522 126,620,383 126,918,878 126,559,784 Add: Potentially dilutive shares 137,853 118,907 426,501 367,074 Denominator for treasury stock method - Diluted 127,161,375 126,739,290 127,345,379 126,926,858 Denominator for earnings per share - two class method - Basic and Diluted: Weighted average common shares outstanding - Basic 127,023,522 126,620,383 126,918,878 126,559,784 Add: Average participating shares outstanding 175,517 331,088 175,517 331,088 Denominator for two class method - Diluted 127,199,039 126,951,471 127,094,395 126,890,872 Basic earnings per share $ 0.04 0.26 0.27 0.53 Diluted earnings per share $ 0.04 0.26 0.27 0.52 Anti-dilutive awards (1) 2,451 2,902 2,451 2,902 (1) Reflects the total number of shares related to outstanding options that have been excluded from the computation of diluted earnings per share because the impact would have been anti-dilutive.

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Pension and Other Post-Retirement Benefits	Pension and Other Post-Retirement Benefits The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands): Quarter ended June 30, Pension benefits Other post-retirement benefits 2024 2023 2024 2023 Service cost $ 1,425 1,560 — — Interest cost 2,205 2,245 15 7 Expected return on plan assets (3,776) (3,479) — — Amortization of prior service cost (563) (564) — — Amortization of the net loss 18 20 10 10 Net periodic cost $ (691) (218) 25 17 Six months ended June 30, Pension benefits Other post-retirement benefits 2024 2023 2024 2023 Service cost $ 2,850 3,120 — — Interest cost 4,410 4,490 30 14 Expected return on plan assets (7,552) (6,958) — — Amortization of prior service cost (1,126) (1,128) — — Amortization of the net loss 36 40 20 20 Net periodic cost $ (1,382) (436) 50 34 Because of the current funding status, we do not anticipate a funding requirement during the year ending December 31, 2024.

Disclosures About Fair Value of

Disclosures About Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Disclosures About Fair Value of Financial Instruments	Disclosures About Fair Value of Financial Instruments We are required to disclose fair value information about financial instruments whether or not recognized in the Consolidated Statement of Financial Condition. Fair value information of certain financial instruments and all nonfinancial instruments is not required to be disclosed. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company. Financial assets and liabilities recognized or disclosed at fair value on a recurring basis and certain financial assets and liabilities on a non-recurring basis are accounted for using a three-level hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. This hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within different levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used. Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques: • Level 1 - Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities. • Level 2 - Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing. • Level 3 - Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include the following: ◦ Quotes from brokers or other external sources that are not considered binding; ◦ Quotes from brokers or other external sources where it cannot be determined that market participants would in fact transact for the asset or liability at the quoted price; and ◦ Quotes and other information from brokers or other external sources where the inputs are not deemed observable. We are responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. We perform due diligence to understand the inputs used or how the data was calculated or derived. We also corroborate the reasonableness of external inputs in the valuation process. The carrying amounts reported in the Consolidated Statement of Financial Condition approximate fair value for the following financial instruments: cash and cash equivalents, marketable securities available-for-sale, loans held-for-sale, accrued interest receivable, interest rate lock commitments, forward commitments, interest rate swaps, savings and checking deposits, foreign exchange swaps, risk participation agreements, and accrued interest payable. Marketable Securities Where available, market values are based on quoted market prices, dealer quotes, and prices obtained from independent pricing services. Debt Securities — available-for-sale - Generally, debt securities are valued using pricing for similar securities, recently executed transactions and other pricing models utilizing observable inputs. The valuation for most debt securities is classified as Level 2. Securities within Level 2 include corporate bonds, municipal bonds, mortgage-backed securities and U.S. government obligations. Certain debt securities which were AAA rated at purchase do not have an active market, and as such we have used an alternative method to determine the fair value of these securities. The fair value has been determined using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, securities which otherwise would have been classified as Level 2 securities if an active market for those assets or similar assets existed are included herein as Level 3 assets. Debt Securities — held-to-maturity - The fair value of debt securities held-to-maturity is determined in the same manner as debt securities available-for-sale. Loans Receivable Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Each loan pool is separately valued utilizing a discounted cash flow analysis. Projected monthly cash flows are discounted to present value using a market rate for comparable loans, which is not considered an exit price. Characteristics of comparable loans include remaining term, coupon interest, and estimated prepayment speeds. Delinquent loans are separately evaluated given the impact delinquency has on the projected future cash flow of the loan including the approximate discount or market rate, which is not considered an exit price. Loans Held-for-Sale The estimated fair value of loans held-for-sale is based on market bids obtained from potential buyers. FHLB Stock Due to the restrictions placed on transferability of FHLB stock, it is not practical to determine the fair value. FHLB stock is recorded at cost. Deposit Liabilities The estimated fair value of deposits with no stated maturity, which includes demand deposits, money market, and other savings accounts, is the amount payable on demand. Although market premiums paid for depository institutions reflect an additional value for these low-cost deposits, adjusting fair value for any value expected to be derived from retaining those deposits for a future period of time or from the benefit that results from the ability to fund interest-earning assets with these deposit liabilities is prohibited. The fair value estimates of deposit liabilities do not include the benefit that results from the low-cost funding provided by these deposits compared to the cost of borrowing funds in the market. Fair values for time deposits are estimated using a discounted cash flow calculation that applies contractual cost currently being offered in the existing portfolio to current market rates being offered locally for deposits of similar remaining maturities. The valuation adjustment for the portfolio consists of the present value of the difference of these two cash flows, discounted at the assumed market rate of the corresponding maturity. Borrowed Funds Fixed rate advances are valued by comparing their contractual cost to the prevailing market cost. The carrying amount of repurchase agreements approximates their fair value. Subordinated Debentures The fair value of our subordinated debentures is calculated using the discounted cash flows at rates observable for other similarly traded liabilities. Junior Subordinated Debentures The fair value of junior subordinated debentures is calculated using the discounted cash flows at the prevailing rate of interest. Interest Rate Lock Commitments and Forward Commitments The fair value of interest rate lock commitments is based on the value of underlying loans held-for-sale which is based on quoted prices for similar loans in the secondary market. This value is then adjusted based on the probability of the loan closing (i.e., the “pull-through” amount, a significant unobservable input). The fair value of forward sale commitments is based on quoted prices from the secondary market based on the settlement date of the contracts. Cash Flow Hedges, Interest Rate and Foreign Exchange Swap Agreements and Risk Participation Agreements The fair value of interest rate swaps is based upon the present value of the expected future cash flows using the SOFR discount curve, the basis for the underlying interest rate. To price interest rate swaps, cash flows are first projected for each payment date using the fixed rate for the fixed side of the swap and the forward rates for the floating side of the swap. These swap cash flows are then discounted to time zero using SOFR zero-coupon interest rates. The sum of the present value of both legs is the fair market value of the interest rate swap. These valuations have been derived from our third party vendor’s proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions that we believe to be reasonable. The fair value of the foreign exchange swap is derived from proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions that we believe to be reasonable. Risk participation agreements are entered into when Northwest purchases a portion of a commercial loan that has an interest rate swap. Northwest assumes credit risk on its portion of the interest rate swap should the borrower fail to pay as agreed. The value of risk participation agreements is determined based on the value of the swap after considering the credit quality, probability of default, and loss given default of the borrower. Off-Balance Sheet Financial Instruments These financial instruments generally are not sold or traded, and estimated fair values are not readily available. However, the fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements. Commitments to extend credit are generally short-term in nature and, if drawn upon, are issued under current market terms. At June 30, 2024 and December 31, 2023, there was no significant unrealized appreciation or depreciation on these financial instruments. The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at June 30, 2024 (in thousands): Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 228,433 228,433 228,433 — — Securities available-for-sale 1,029,191 1,029,191 — 1,029,191 — Securities held-to-maturity 784,208 663,292 — 663,292 — Loans receivable, net 11,219,849 10,270,432 — — 10,270,432 Loans held-for-sale 9,445 9,445 — 681 8,764 Accrued interest receivable 48,739 48,739 48,739 — — Interest rate lock commitments 791 791 — — 791 Forward commitments 70 70 — 70 — Foreign exchange swaps 2 2 — 2 — Interest rate swaps designated as hedging instruments 2,726 2,726 — 2,726 — Interest rate swaps not designated as hedging instruments 44,420 44,420 — 44,420 — FHLB stock 20,842 20,842 — — — Total financial assets $ 13,388,716 12,318,383 277,172 1,740,382 10,279,987 Financial liabilities: Savings and checking deposits $ 9,261,017 9,261,017 9,261,017 — — Time deposits 2,826,362 2,472,360 — — 2,472,360 Borrowed funds 242,363 232,254 232,254 — — Subordinated debt 114,364 109,224 — 109,224 — Junior subordinated debentures 129,703 124,292 — — 124,292 Foreign exchange swaps 25 25 — 25 — Interest rate swaps not designated as hedging instruments 44,450 44,450 — 44,450 — Risk participation agreements 106 106 — 106 — Accrued interest payable 21,423 21,423 21,423 — — Total financial liabilities $ 12,639,813 12,265,151 9,514,694 153,805 2,596,652 The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2023 (in thousands): Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 122,260 122,260 122,260 — — Securities available-for-sale 1,043,359 1,043,359 — 1,043,359 — Securities held-to-maturity 814,839 699,506 — 699,506 — Loans receivable, net 11,280,798 10,274,593 — — 10,274,593 Loans held-for-sale 8,768 8,768 — — 8,768 Accrued interest receivable 47,353 47,353 47,353 — — Interest rate lock commitments 641 641 — — 641 Forward commitments 12 12 — 12 — Interest rate swaps designated as hedging instruments 713 713 — 713 — Interest rate swaps not designated as hedging instruments 41,406 41,406 — 41,406 — FHLB stock 30,146 30,146 — — — Total financial assets $ 13,390,295 12,268,757 169,613 1,784,996 10,284,002 Financial liabilities: Savings and checking accounts $ 9,377,021 9,377,021 9,377,021 — — Time deposits 2,602,881 2,113,177 — — 2,113,177 Borrowed funds 398,895 386,446 386,446 — — Subordinated debt 114,189 109,471 — 109,471 — Junior subordinated debentures 129,574 112,159 — — 112,159 Foreign exchange swaps 291 291 — 291 — Interest rate swaps designated as hedging instruments 1,198 1,198 — 1,198 — Interest rate swaps not designated as hedging instruments 41,437 41,437 — 41,437 — Risk participation agreements 14 14 — 14 — Accrued interest payable 13,669 13,669 13,669 — — Total financial liabilities $ 12,679,169 12,154,883 9,777,136 152,411 2,225,336 Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The methods and assumptions detailed above were used in estimating the fair value of financial instruments at both June 30, 2024 and December 31, 2023. The following table represents assets and liabilities measured at fair value on a recurring basis at June 30, 2024 (in thousands): Level 1 Level 2 Level 3 Total assets Debt securities: U.S. government and agencies $ — 36,971 — 36,971 Government-sponsored enterprises — 180 — 180 States and political subdivisions — 58,741 — 58,741 Corporate — 16,757 — 16,757 Total debt securities — 112,649 — 112,649 Mortgage-backed securities: GNMA — 56,127 — 56,127 FNMA — 64,816 — 64,816 FHLMC — 95,220 — 95,220 Non-agency — 5 — 5 Collateralized mortgage obligations: GNMA — 489,211 — 489,211 FNMA — 77,941 — 77,941 FHLMC — 133,222 — 133,222 Total mortgage-backed securities — 916,542 — 916,542 Interest rate lock commitments — — 791 791 Forward commitments — 70 — 70 Foreign exchange swaps — 2 — 2 Interest rate swaps designated as hedging instruments — 2,726 — 2,726 Interest rate swaps not designated as hedging instruments — 44,420 — 44,420 Total assets $ — 1,076,409 791 1,077,200 Foreign exchange swaps $ — 25 — 25 Interest rate swaps not designated as hedging instruments — 44,450 — 44,450 Risk participation agreements — 106 — 106 Total liabilities $ — 44,581 — 44,581 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2023 (in thousands): Level 1 Level 2 Level 3 Total assets Debt securities: U.S. government and agencies $ — 58,314 — 58,314 Government-sponsored enterprises — 40,597 — 40,597 States and political subdivisions — 75,469 — 75,469 Corporate — 7,688 — 7,688 Total debt securities — 182,068 — 182,068 Mortgage-backed securities: GNMA — 17,441 — 17,441 FNMA — 102,678 — 102,678 FHLMC — 70,830 — 70,830 Non-agency — 5 — 5 Collateralized mortgage obligations: GNMA — 331,784 — 331,784 FNMA — 148,892 — 148,892 FHLMC — 189,661 — 189,661 Total mortgage-backed securities — 861,291 — 861,291 Interest rate lock commitments — — 641 641 Forward commitments — 12 — 12 Interest rate swaps designated as hedging instruments — 713 — 713 Interest rate swaps not designated as hedging instruments — 41,406 — 41,406 Total assets $ — 1,085,490 641 1,086,131 Foreign exchange swaps $ — 291 — 291 Interest rate swaps designated as hedging instruments — 1,198 — 1,198 Interest rate swaps not designated as hedging instruments — 41,437 — 41,437 Risk participation agreements — 14 — 14 Total liabilities $ — 42,940 — 42,940 The following table presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis (in thousands): For the quarter ended June 30, For the six months ended June 30, 2024 2023 2024 2023 Beginning balance, $ 479 386 641 559 Interest rate lock commitments: Net activity 312 375 150 202 Ending balance $ 791 761 791 761 Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans held-for-sale, loans individually assessed, real estate owned, and mortgage servicing rights. The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of June 30, 2024 (in thousands): Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 41,839 41,839 Mortgage servicing rights — — 19 19 Real estate owned, net — — 74 74 Total assets $ — — 41,932 41,932 The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2023 (in thousands): Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 36,747 36,747 Mortgage servicing rights — — 133 133 Real estate owned, net — — 104 104 Total assets $ — — 36,984 36,984 Individually Assessed Loans - A loan is considered to be individually assessed as described in Note 1(f) of the Notes to the Consolidated Financial Statements in Item 8 of Part II of our 2023 Annual Report on Form 10-K. We classify loans individually assessed as nonrecurring Level 3. Mortgage servicing rights - Mortgage servicing rights represent the value of servicing residential mortgage loans, when the mortgage loans have been sold into the secondary market and the associated servicing has been retained. The value is determined through a discounted cash flow analysis, which uses interest rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management judgment. Servicing rights and the related mortgage loans are segregated into categories or homogeneous pools based upon common characteristics. Adjustments are only made when the estimated discounted future cash flows are less than the carrying value, as determined by individual pool. As such, mortgage servicing rights are classified as nonrecurring Level 3. Real Estate Owned - Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the related loan balance or fair value, less estimated disposition costs, with the fair value being determined by appraisal. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or fair value, less estimated disposition costs. We classify real estate owned as nonrecurring Level 3. The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at June 30, 2024 (in thousands): Fair value Valuation techniques Significant Range (weighted average) Loans individually assessed $ 41,839 Appraisal value (1) Estimated cost to sell 10% Mortgage servicing rights 19 Discounted cash flow Annual service cost $89 Prepayment rate 6.5% to 16.5% (10.1%) Expected life (months) 52.7 to 102.5 (74) Option adjusted spread 727 basis points Forward yield curve 5.44% to 5.45% Real estate owned, net 74 Appraisal value (1) Estimated cost to sell 10% Loans held for sale 8,764 Quoted prices for similar loans in active markets adjusted by an expected pull-through rate Estimated pull-through rate 100% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We are a party to derivative financial instruments in the normal course of business to manage our own exposure to fluctuations in interest rates and to meet the needs of our customers. The primary derivatives that we use are interest rate swaps and caps and foreign exchange contracts, which are entered into with counterparties that meet established credit standards. We believe that the credit risk inherent in all of our derivative contracts is minimal based on our credit standards and the netting and collateral provisions of the interest rate swap agreements. Derivatives Designated as Hedging Instruments During the year ended December 31, 2023 the Company entered into seven separate pay-fixed interest rate swaps in order to synthetically convert short-term three month FHLB advances to fixed-rate term funding with an aggregate value of $175 million with maturities ranging from three Derivatives and Hedging . Our cash flow hedges are recorded within other assets on the Consolidated Statement of Financial Condition at their estimated fair value. As long as the hedge remains highly effective, the changes in the fair value of derivatives designated, and that qualify, as cash flow hedges are recorded in accumulated other comprehensive income and are subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. A hedging relationship that is determined to not be highly effective no longer qualifies for hedge accounting and any gain or loss is recognized immediately into earnings. Amount reclassified into earnings are included in interest expense in the Consolidated Statement of Income. Derivatives Not Designated as Hedging Instruments We act as an interest rate or foreign exchange swap counterparty for certain commercial borrowers in the normal course of servicing our customers, which are accounted for at fair value. We manage our exposure to such interest rate or foreign exchange swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the swaps we have with the commercial borrowers. These positions (referred to as “customer swaps”) directly offset each other and our exposure is the fair value of the derivatives due to changes in credit risk of our commercial borrowers and third parties. Customer swaps are recorded within other assets or other liabilities on the Consolidated Statement of Financial Condition at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the Consolidated Statement of Income. We enter into interest rate lock commitments for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate within a specified period of time. Interest rate lock commitments that relate to the origination of mortgage loans that will be held-for-sale are considered derivative financial instruments under applicable accounting guidance. Interest rate lock commitments on loans held-for-sale are carried at fair value in other assets on the Consolidated Statement of Financial Condition. Northwest sells loans to the secondary market on a mandatory or best efforts basis. The loans sold on a mandatory basis commit us to deliver a specific principal amount of mortgage loans to an investor at a specified price, by a specified date, or the commitment must be paired off. These forward commitments entered into on a mandatory delivery basis meet the definition of a derivative financial instrument. All closed loans to be sold on a mandatory delivery basis are classified as held-for-sale on the Consolidated Statement of Financial Condition. Changes to the fair value of the interest rate lock commitments and the forward commitments are recorded in mortgage banking income in the Consolidated Statements of Income. We enter into risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. These risk participation agreements are recorded within other liabilities on the Consolidated Statement of Financial Condition at their estimated fair value. Changes to the fair value of the the risk participation agreements are included in other operating income in the Consolidated Statement of Income. The following table presents information regarding our derivative financial instruments at the dates indicated (in thousands): Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At June 30, 2024 Derivatives designated as hedging instruments: Interest rate swap agreements $ 175,000 2,726 — — Derivatives not designated as hedging instruments: Interest rate swap agreements 743,036 44,420 743,036 44,450 Foreign exchange swap agreements 2,824 2 5,790 25 Interest rate lock commitments 29,284 791 — — Forward commitments 2,661 70 — — Risk participation agreements — — 116,473 106 Total Derivatives $ 952,805 48,009 865,299 44,581 At December 31, 2023 Derivatives designated as hedging instruments: Interest rate swap agreements $ 75,000 713 100,000 1,198 Derivatives not designated as hedging instruments: Interest rate swap agreements 725,139 41,406 725,139 41,437 Foreign exchange swap agreements — — 12,278 291 Interest rate lock commitments 21,857 641 — — Forward commitments 281 12 — — Risk participation agreements — — 101,727 14 Total derivatives $ 822,277 42,772 939,144 42,940 The following table presents income or expense recognized on derivatives for the periods indicated (in thousands): For the quarter ended June 30, For the six months ended June 30, 2024 2023 2024 2023 Hedging derivatives: Decrease in interest expense $ 734 203 1,467 203 Non-hedging swap derivatives: (Decrease)/increase in other income (112) (128) 175 (330) Increase in mortgage banking income 323 349 208 176 The following table presents information regarding our derivative financial instruments designated as hedging for the quarter ended June 30, 2024 (dollars in thousands): Notional amount Effective rate Estimated decrease to interest expense in the next twelve months Maturity date Remaining term Interest rate products: Issued May 11, 2023 $ 25,000 3.50 % $ (543) 5/11/2027 34 Issued May 12, 2023 25,000 3.54 % (532) 5/12/2028 46 Issued May 19, 2023 25,000 3.83 % (458) 11/19/2027 41 Issued May 31, 2023 25,000 4.05 % (404) 11/30/2026 29 Issued July 26, 2023 25,000 4.24 % (356) 7/26/2028 49 Issued July 31, 2023 25,000 4.35 % (334) 1/31/2028 43 Issued August 9, 2023 25,000 4.32 % (337) 8/9/2027 37 Total $ 175,000 $ (2,964)

Legal Proceedings

Legal Proceedings	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	Legal Proceedings We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. As of June 30, 2024, we do not anticipate that the aggregate ultimate liability arising out of any pending or threatened legal proceedings will be material to our Consolidated Financial Statements. Any such accruals are adjusted thereafter as appropriate to reflect changes in circumstances. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate loss to us from legal proceedings.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes in Accumulated Other Comprehensive Income	Changes in Accumulated Other Comprehensive Income The following tables show the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the quarter ended June 30, 2024 Unrealized Change in Change in Total Balance as of March 31, 2024 $ (156,357) 1,780 1,153 (153,424) Other comprehensive (loss)/income before reclassification adjustments (1) (3) (3,391) 330 — (3,061) Amounts reclassified from accumulated other comprehensive income (2) (4) 26,789 — (388) 26,401 Net other comprehensive income/(loss) 23,398 330 (388) 23,340 Balance as of June 30, 2024 $ (132,959) 2,110 765 (130,084) For the quarter ended June 30, 2023 Unrealized Change in Change in Total Balance as of March 31, 2023 $ (151,189) — (7,334) (158,523) Other comprehensive income before reclassification adjustments (5) (7) (17,719) 1,737 — (15,982) Amounts reclassified from accumulated other comprehensive income (6) (8) 5,636 — (382) 5,254 Net other comprehensive income/(loss) (12,083) 1,737 (382) (10,728) Balance as of June 30, 2023 $ (163,272) 1,737 (7,716) (169,251) (1) Consists of unrealized holding losses, net of tax of $168 . (2) Consists of realized losses, net of tax of ($7,706) . (3) Change in fair value of interest rate swaps, net of tax ($96) . (4) Consists of realized gains, net of tax of $147 . (5) Consists of unrealized holding losses, net of tax of $3,771 . (6) Consists of realized losses, net of tax of ($1,731) . (7) Change in fair value of interest rate swaps, net of tax ($508) . (8) Consists of realized gains, net of tax of $152 . For the six months ended June 30, 2024 Unrealized Change in Change in Total Balance as of December 31, 2023 $ (150,659) (374) 1,541 (149,492) Other comprehensive (loss)/income before reclassification adjustments (1) (3) (9,089) 2,484 — (6,605) Amounts reclassified from accumulated other comprehensive income (2) (4) 26,789 — (776) 26,013 Net other comprehensive income/(loss) 17,700 2,484 (776) 19,408 Balance as of June 30, 2024 $ (132,959) 2,110 765 (130,084) For the six months ended June 30, 2023 Unrealized Change in Change in Total Balance as of December 31, 2022 $ (164,206) — (6,952) (171,158) Other comprehensive loss before reclassification adjustments (5) (7) (4,702) 1,737 — (2,965) Amounts reclassified from accumulated other comprehensive income (6) (8) 5,636 — (764) 4,872 Net other comprehensive loss 934 1,737 (764) 1,907 Balance as of June 30, 2023 $ (163,272) 1,737 (7,716) (169,251) (1) Consists of unrealized holding losses, net of tax of $1,926 . (2) Consists of realized losses, net of tax of ($7,706) . (3) Change in fair value of interest rate swaps, net of tax ($726) . (4) Consists of realized gains, net of tax of $294 . (5) Consists of unrealized holding losses, net of tax $463 . (6) Consists of realized losses, net of tax ($1,731) . (7) Change in fair value of interest rate swaps, net of tax ($508) . (8) Consists of realized gains, net of tax of $304 .

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income (loss)	$ 4,747	$ 33,044	$ 33,910	$ 66,723

Insider Trading Arrangements

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

Basis of Presentation and Inf_2

Basis of Presentation and Informational Disclosures (Policies)	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Columbus, Ohio, is a bank holding company regulated by the Board of Governors of the Federal Reserve System (“FRB”). The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”). Northwest is regulated by the Federal Deposit Insurance Corporation (“FDIC”) and the Pennsylvania Department of Banking. Northwest operates 139 community-banking offices throughout Pennsylvania, Western New York, Eastern Ohio, and Indiana. The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Great Northwest Corporation, and Mutual Federal Interest Company, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information or footnotes required for complete annual financial statements. In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included. The Consolidated Financial Statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 updated, as required, for any new pronouncements or changes.
Reclassifications	Certain items previously reported have been reclassified to conform to the current year’s reporting format.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In March 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2023-02, " Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method

Marketable Securities (Tables)

Marketable Securities (Tables)	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of the portfolio of investment securities available-for-sale	The following table shows the portfolio of marketable securities available-for-sale at June 30, 2024 (in thousands): Amortized Gross Gross Fair Debt issued by the U.S government and agencies: Due after ten years $ 47,263 — (10,292) 36,971 Debt issued by government-sponsored enterprises: Due after one year through five years 185 — (5) 180 Municipal securities: Due after one year through five years 880 8 (3) 885 Due after five years through ten years 9,157 5 (1,565) 7,597 Due after ten years 58,872 13 (8,626) 50,259 Corporate debt issues: Due after five years through ten years 14,373 20 (886) 13,507 Due after ten years 3,250 — — 3,250 Mortgage-backed securities: Fixed rate pass-through 228,855 83 (16,874) 212,064 Variable rate pass-through 4,093 24 (13) 4,104 Fixed rate agency CMOs 789,673 293 (135,258) 654,708 Variable rate agency CMOs 45,753 38 (125) 45,666 Total mortgage-backed securities 1,068,374 438 (152,270) 916,542 Total marketable securities available-for-sale $ 1,202,354 484 (173,647) 1,029,191 The following table shows the portfolio of marketable securities available-for-sale at December 31, 2023 (in thousands): Amortized Gross Gross Fair Debt issued by the U.S. government and agencies: Due after one year through five years $ 20,000 — (1,135) 18,865 Due after ten years 49,383 — (9,934) 39,449 Debt issued by government-sponsored enterprises: Due after one year through five years 45,986 — (5,763) 40,223 Due after five years through ten years 386 — (12) 374 Municipal securities: Due after one year through five years 4,279 22 (427) 3,874 Due after five years through ten years 20,725 — (1,437) 19,288 Due after ten years 60,762 125 (8,580) 52,307 Corporate debt issues: Due after five years through ten years 8,466 — (778) 7,688 Mortgage-backed securities: Fixed rate pass-through 209,069 27 (25,222) 183,874 Variable rate pass-through 7,140 11 (71) 7,080 Fixed rate agency CMOs 789,842 — (143,055) 646,787 Variable rate agency CMOs 23,965 38 (453) 23,550 Total mortgage-backed securities 1,030,016 76 (168,801) 861,291 Total marketable securities available-for-sale $ 1,240,003 223 (196,867) 1,043,359
Schedule of the portfolio of investment securities held-to-maturity	The following table shows the portfolio of marketable securities held-to-maturity at June 30, 2024 (in thousands): Amortized Gross Gross Fair Debt issued by government-sponsored enterprises: Due after one year through five years $ 89,472 — (10,845) 78,627 Due after five years through ten years 34,988 — (5,645) 29,343 Mortgage-backed securities: Fixed rate pass-through 140,245 — (21,704) 118,541 Variable rate pass-through 414 — (4) 410 Fixed rate agency CMOs 518,560 — (82,714) 435,846 Variable rate agency CMOs 529 — (4) 525 Total mortgage-backed securities 659,748 — (104,426) 555,322 Total marketable securities held-to-maturity $ 784,208 — (120,916) 663,292 The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2023 (in thousands): Amortized Gross Gross Fair Debt issued by government-sponsored enterprises: Due after one year through five years $ 69,471 — (8,100) 61,371 Due after five years through ten years 54,987 — (8,700) 46,287 Mortgage-backed securities: Fixed rate pass-through 147,874 — (20,834) 127,040 Variable rate pass-through 449 1 — 450 Fixed rate agency CMOs 541,529 — (77,694) 463,835 Variable rate agency CMOs 529 — (6) 523 Total mortgage-backed securities 690,381 1 (98,534) 591,848 Total marketable securities held-to-maturity $ 814,839 1 (115,334) 699,506
Schedule of contractual maturity of mortgage-backed securities	The following table shows the contractual maturity of our mortgage-backed securities available-for-sale at June 30, 2024 (in thousands): Amortized Fair Mortgage-backed securities: Due within one year $ 74 75 Due after one year through five years 11,289 11,185 Due after five years through ten years 8,021 7,022 Due after ten years 1,048,990 898,260 Total mortgage-backed securities $ 1,068,374 916,542 The following table shows the contractual maturity of our mortgage-backed securities held-to-maturity at June 30, 2024 (in thousands): Amortized Fair Mortgage-backed securities: Due within one year $ 102 100 Due after one year through five years 20,010 17,581 Due after five years through ten years 20,201 16,321 Due after ten years 619,435 521,320 Total mortgage-backed securities $ 659,748 555,322
Schedule of the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position	The following table shows the fair value of and gross unrealized losses on available-for-sale investment securities and held to maturity investment securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at June 30, 2024 (in thousands): Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. government-sponsored enterprises $ — — 145,120 (26,787) 145,120 (26,787) Municipal securities 13,977 (140) 39,354 (10,054) 53,331 (10,194) Corporate issues 2,395 (38) 7,619 (848) 10,014 (886) Mortgage-backed securities - agency 247,747 (1,059) 1,170,983 (255,637) 1,418,730 (256,696) Total $ 264,119 (1,237) 1,363,076 (293,326) 1,627,195 (294,563) The following table shows the fair value of and gross unrealized losses on available-for-sale investment securities and held to maturity investment securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2023 (in thousands): Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. government-sponsored enterprises $ — — 206,569 (33,644) 206,569 (33,644) Corporate debt issues — — 7,688 (778) 7,688 (778) Municipal securities 2,753 (81) 66,046 (10,363) 68,799 (10,444) Mortgage-backed securities - agency 17,976 (242) 1,423,707 (267,093) 1,441,683 (267,335) Total $ 20,729 (323) 1,704,010 (311,878) 1,724,739 (312,201)
Schedule of credit quality of held-to-maturity securities	The following table presents the credit quality of our held-to-maturity securities, based on the latest information available as of June 30, 2024 (in thousands). The credit ratings are sourced from nationally recognized rating agencies, which include Moody’s and S&P, and they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of June 30, 2024. AA+ Total Held-to-maturity securities (at amortized cost): Debt issued by the U.S. government-sponsored enterprises $ 124,460 124,460 Mortgage-backed securities 659,748 659,748 Total marketable securities held-to-maturity $ 784,208 784,208

Loans Receivable (Tables)

Loans Receivable (Tables)	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Schedule of loans receivable	The following table shows a summary of our loans receivable at amortized cost basis at June 30, 2024 and December 31, 2023 (in thousands): June 30, 2024 December 31, 2023 Originated (1) Acquired (2) Total Originated (1) Acquired (2) Total Personal Banking: Residential mortgage loans (3) $ 3,189,086 134,982 3,324,068 3,283,299 144,886 3,428,185 Home equity loans 1,069,569 110,917 1,180,486 1,103,410 124,448 1,227,858 Vehicle loans 1,905,878 55,050 1,960,928 1,943,540 65,061 2,008,601 Consumer loans 113,860 5,270 119,130 111,446 5,980 117,426 Total Personal Banking 6,278,393 306,219 6,584,612 6,441,695 340,375 6,782,070 Commercial Banking: Commercial real estate loans (4) 2,445,069 219,947 2,665,016 2,389,537 238,920 2,628,457 Commercial real estate loans - owner occupied 338,014 24,608 362,622 319,195 26,358 345,553 Commercial loans 1,712,839 29,275 1,742,114 1,623,481 35,248 1,658,729 Total Commercial Banking 4,495,922 273,830 4,769,752 4,332,213 300,526 4,632,739 Total loans receivable, gross 10,774,315 580,049 11,354,364 10,773,908 640,901 11,414,809 Allowance for credit losses (119,575) (5,495) (125,070) (118,079) (7,164) (125,243) Total loans receivable, net (5) $ 10,654,740 574,554 11,229,294 10,655,829 633,737 11,289,566 (1) Includes originated and loan pools purchased in an asset acquisition. (2) Includes loans subject to purchase accounting in a business combination. (3) Includes $9 million of loans held-for-sale at June 30, 2024 and December 31, 2023. (4) Includes $681,000 and $0 of loans held-for-sale at June 30, 2024 and December 31, 2023, respectively. (5) Includes $65 million and $68 million
Schedule of the changes in the allowance for losses on loans receivable	The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2024 (in thousands): Balance as of June 30, 2024 Current period provision Charge-offs Recoveries Balance as of March 31, 2024 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 14,999 (2,375) (252) 805 16,821 Home equity loans 5,210 (279) (237) 392 5,334 Vehicle loans 21,364 1,767 (1,926) 462 21,061 Consumer loans 1,668 434 (635) 417 1,452 Total Personal Banking 43,241 (453) (3,050) 2,076 44,668 Commercial Banking: Commercial real estate loans 50,559 (3,785) (500) 370 54,474 Commercial real estate loans - owner occupied 3,615 (453) — 13 4,055 Commercial loans 27,655 6,860 (1,319) 414 21,700 Total Commercial Banking 81,829 2,622 (1,819) 797 80,229 Total $ 125,070 2,169 (4,869) 2,873 124,897 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 1 — — — 1 Home equity loans 63 (1) — — 64 Total Personal Banking 64 (1) — — 65 Commercial Banking: Commercial real estate loans 4,450 (1,768) — — 6,218 Commercial real estate loans - owner occupied 151 (3) — — 154 Commercial loans 9,120 (767) — — 9,887 Total Commercial Banking 13,721 (2,538) — — 16,259 Total off-balance sheet exposure $ 13,785 (2,539) — — 16,324 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2023 (in thousands): Balance as of June 30, 2023 Current period provision Charge-offs Recoveries Balance as of March 31, 2023 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 17,556 (1,676) (545) 539 19,238 Home equity loans 5,002 (456) (235) 212 5,481 Vehicle loans 27,283 2,030 (1,539) 626 26,166 Consumer loans 1,010 1,231 (1,233) 280 732 Total Personal Banking 50,851 1,129 (3,552) 1,657 51,617 Commercial Banking: Commercial real estate loans 50,056 4,576 (415) 491 45,404 Commercial real estate loans - owner occupied 3,498 189 (68) 26 3,351 Commercial loans 20,018 116 (1,209) 226 20,885 Total Commercial Banking 73,572 4,881 (1,692) 743 69,640 Total $ 124,423 6,010 (5,244) 2,400 121,257 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 4 1 — — 3 Home equity loans 64 4 — — 60 Total Personal Banking 68 5 — — 63 Commercial Banking: Commercial real estate loans 7,655 1,731 — — 5,924 Commercial real estate loans - owner occupied 320 (121) — — 441 Commercial loans 7,916 1,305 — — 6,611 Total Commercial Banking 15,891 2,915 — — 12,976 Total off-balance sheet exposure $ 15,959 2,920 — — 13,039 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2024 (in thousands): Balance Current period provision Charge-offs Recoveries Balance December 31, 2023 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 14,999 (3,774) (414) 994 18,193 Home equity loans 5,210 (134) (649) 590 5,403 Vehicle loans 21,364 (1,927) (4,514) 894 26,911 Consumer loans 1,668 2,283 (2,620) 806 1,199 Total Personal Banking 43,241 (3,552) (8,197) 3,284 51,706 Commercial Banking: Commercial real estate loans 50,559 (712) (849) 853 51,267 Commercial real estate loans - owner occupied 3,615 (181) — 21 3,775 Commercial loans 27,655 10,848 (2,482) 794 18,495 Total Commercial Banking 81,829 9,955 (3,331) 1,668 73,537 Total $ 125,070 6,403 (11,528) 4,952 125,243 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 1 (1) — — 2 Home equity loans 63 (2) — — 65 Total Personal Banking 64 (3) — — 67 Commercial Banking: Commercial real estate loans 4,450 (1,697) — — 6,147 Commercial real estate loans - owner occupied 151 (22) — — 173 Commercial loans 9,120 (1,616) — — 10,736 Total Commercial Banking 13,721 (3,335) — — 17,056 Total off-balance sheet exposure $ 13,785 (3,338) — — 17,123 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2023 (in thousands): Balance Current period provision Charge-offs Recoveries ASU 2022-02 Adoption Balance December 31, 2022 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 17,556 (1,677) (752) 724 — 19,261 Home equity loans 5,002 (906) (399) 405 — 5,902 Vehicle loans 27,283 6,283 (3,207) 1,148 — 23,059 Consumer loans 1,010 2,027 (2,299) 617 — 665 Total Personal Banking 50,851 5,727 (6,657) 2,894 — 48,887 Commercial Banking: Commercial real estate loans 50,056 4,697 (1,072) 1,499 426 44,506 Commercial real estate loans - owner occupied 3,498 (485) (68) 47 — 4,004 Commercial loans 20,018 941 (2,074) 512 — 20,639 Total Commercial Banking 73,572 5,153 (3,214) 2,058 426 69,149 Total $ 124,423 10,880 (9,871) 4,952 426 118,036 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Residential mortgage loans $ 4 — — — — 4 Home equity loans 64 (10) — — — 74 Total Personal Banking 68 (10) — — — 78 Commercial Banking: Commercial real estate loans 7,655 2,280 — — — 5,375 Commercial real estate loans - owner occupied 320 (59) — — — 379 Commercial loans 7,916 835 — — — 7,081 Total Commercial Banking 15,891 3,056 — — — 12,835 Total off-balance sheet exposure $ 15,959 3,046 — — — 12,913
Schedule of loan portfolio by portfolio segment and by class of financing receivable	The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at June 30, 2024 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 3,324,068 14,999 6,403 1,390 Home equity loans 1,180,486 5,210 4,055 34 Vehicle loans 1,960,928 21,364 4,342 8 Consumer loans 119,130 1,668 267 570 Total Personal Banking 6,584,612 43,241 15,067 2,002 Commercial Banking: Commercial real estate loans 2,665,016 50,559 73,989 185 Commercial real estate loans - owner occupied 362,622 3,615 983 — Commercial loans 1,742,114 27,655 12,120 324 Total Commercial Banking 4,769,752 81,829 87,092 509 Total $ 11,354,364 125,070 102,159 2,511 The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2023 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 3,428,185 18,193 8,727 1,671 Home equity loans 1,227,858 5,403 4,492 26 Vehicle loans 2,008,601 26,911 4,816 44 Consumer loans 117,426 1,199 229 722 Total Personal Banking 6,782,070 51,706 18,264 2,463 Commercial Banking: Commercial real estate loans 2,628,457 51,267 71,297 225 Commercial real estate loans - owner occupied 345,553 3,775 676 — Commercial loans 1,658,729 18,495 4,147 10 Total Commercial Banking 4,632,739 73,537 76,120 235 Total $ 11,414,809 125,243 94,384 2,698
Schedule of the composition of nonaccrual loans by portfolio segment and by class of financing receivable	The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the period ended June 30, 2024 (in thousands): June 30, 2024 Nonaccrual loans at January 1, 2024 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total nonaccrual loans at the end of the period Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 8,727 5,803 600 6,403 1,390 Home equity loans 4,492 3,907 148 4,055 34 Vehicle loans 4,816 3,585 757 4,342 8 Consumer loans 229 257 10 267 570 Total Personal Banking 18,264 13,552 1,515 15,067 2,002 Commercial Banking: Commercial real estate loans 71,297 52,491 21,498 73,989 185 Commercial real estate loans - owner occupied 676 983 — 983 — Commercial loans 4,147 11,944 176 12,120 324 Total Commercial Banking 76,120 65,418 21,674 87,092 509 Total $ 94,384 78,970 23,189 102,159 2,511 The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the year ended December 31, 2023 (in thousands): December 31, 2023 Nonaccrual loans at January 1, 2023 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total nonaccrual loans at the end of the period Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 7,574 8,304 423 8,727 1,671 Home equity loans 4,145 4,084 408 4,492 26 Vehicle loans 3,771 4,187 629 4,816 44 Consumer loans 256 229 — 229 722 Total Personal Banking 15,746 16,804 1,460 18,264 2,463 Commercial Banking: Commercial real estate loans 62,239 47,359 23,938 71,297 225 Commercial real estate loans - owner occupied 624 676 — 676 — Commercial loans 2,627 3,996 151 4,147 10 Total Commercial Banking 65,490 52,031 24,089 76,120 235 Total $ 81,236 68,835 25,549 94,384 2,698 Real estate Equipment Total Commercial Banking: Commercial real estate loans 67,688 1,485 69,173 Commercial loans 3,019 5,062 8,081 Total Commercial Banking 70,707 6,547 77,254 Total $ 70,707 6,547 77,254 The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2023 (in thousands): Real estate Total Commercial Banking: Commercial real estate loans $ 66,934 66,934 Commercial loans 150 150 Total Commercial Banking 67,084 67,084 Total $ 67,084 67,084
Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable	The following table presents the amortized cost basis of loans for the periods indicated that were both experiencing financial difficulty and modified during the respective period, by class and by type of modification. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financial receivable is also presented below (dollars in thousands). For the quarter ended June 30, 2024 2023 Term extension Interest rate reduction Total class of financing receivable Term extension Total class of financing receivable Personal Banking: Residential mortgage loans $ 15 — 0.00 % 82 0.00 % Home equity loans 42 — 0.00 % 118 0.01 % Total Personal Banking 57 — 0.00 % 200 0.00 % Commercial Banking: Commercial real estate loans - owner occupied — 697 0.19 % — — % Total Commercial Banking — 697 0.01 % — — % Total $ 57 697 0.01 % 200 0.00 % For the six months ended June 30, 2024 2023 Payment delay Term extension Interest rate reduction Combination term extension and interest rate reduction Total class of financing receivable Term extension Combination term extension and interest rate reduction Total class of financing receivable Personal Banking: Residential mortgage loans $ — 497 — — 0.01 % 262 — 0.01 % Home equity loans — 551 — 84 0.05 % 166 — 0.01 % Consumer loans — — — 2 — % — 3 — % Total Personal Banking — 1,048 — 86 0.02 % 428 3 0.01 % Commercial Banking: Commercial real estate loans 29,764 210 — — 1.12 % 220 — 0.01 % Commercial real estate loans - owner occupied — — 697 — 0.19 % — — — % Commercial loans — 31 — 9 — % 660 — 0.05 % Total Commercial Banking 29,764 241 697 9 0.64 % 880 — 0.02 % Total $ 29,764 1,289 697 95 0.28 % 1,308 3 0.01 % The following table presents the effect of the loan modifications presented above to borrowers experiencing financial difficulty for the periods indicated: For the quarter ended June 30, 2024 2023 Weighted-average interest rate reduction Weighted-average term extension in months Weighted-average term extension in months Personal Banking: Residential mortgage loans — % 220 100 Home equity loans — % 73 42 Consumer loans — % 0 9 Total Personal Banking — % 112 66 Commercial Banking: Commercial real estate loans - owner occupied 2 % 0 0 Total Commercial Banking 2 % 0 0 Total loans 2 % 0 66 For the six months ended June 30, 2024 2023 Weighted-average interest rate reduction Weighted-average term extension in months Weighted-average payment deferral in years Weighted-average interest rate reduction Weighted-average term extension in months Personal Banking: Residential mortgage loans — % 145 0 — % 132 Home equity loans 2 % 97 0 — % 73 Consumer loans 12 % 356 0 12 % 319 Total Personal Banking 2 % 119 0 12 % 111 Commercial Banking: Commercial real estate loans — % 117 1 — % 25 Commercial real estate loans - owner occupied 2 % 0 0 — % 0 Commercial loans 4 % 118 0 — % 9 Total Commercial Banking 2 % 117 1 — % 13 Total loans 2 % 118 1 12 % 45 June 30, 2024 (in thousands) : Current 30-59 days 60-89 days 90 days or Personal Banking: Residential mortgage loans $ 492 — — 5 Home equity loans 533 90 12 — Consumer loans 2 — — — Total Personal Banking 1,027 90 12 5 Commercial Banking: Commercial real estate loans 29,974 — — — Commercial real estate loans - owner occupied 697 — — — Commercial loans 10 5 — 25 Total Commercial Banking 30,681 5 — 25 Total loans $ 31,708 95 12 30 The following table presents the performance of loans modified since the adoption of ASU 2022-02 as of June 30, 2023 (in thousands) : Current 30-59 days 60-89 days 90 days or Personal Banking: Residential mortgage loans $ 262 — — — Home equity loans 166 — — — Consumer loans 3 — — — Total Personal Banking 431 — — — Commercial Banking: Commercial real estate loans 81 139 — — Commercial loans — 660 — — Total Commercial Banking 81 799 — — Total loans $ 512 799 — —
Schedule of loans with payment default and modified	The following table provides the amortized cost basis of financing receivables that had a payment default during the period ended June 30, 2024 and were modified within the previous twelve months to borrowers experiencing financial difficulty (in thousands) : Term extension Personal Banking: Residential mortgage loans $ 5 Total Personal Banking 5 Commercial Banking: Commercial loans 25 Total Commercial Banking 25 Total $ 30
Schedule of loan delinquencies	The following table provides information related to the amortized cost basis of loan payment delinquencies at June 30, 2024 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 616 8,223 5,553 14,392 3,309,676 3,324,068 1,390 Home equity loans 3,771 1,065 2,506 7,342 1,173,144 1,180,486 34 Vehicle loans 9,759 2,774 2,191 14,724 1,946,204 1,960,928 8 Consumer loans 613 424 821 1,858 117,272 119,130 570 Total Personal Banking 14,759 12,486 11,071 38,316 6,546,296 6,584,612 2,002 Commercial Banking: Commercial real estate loans 3,893 2,736 5,882 12,511 2,652,505 2,665,016 185 Commercial real estate loans - owner occupied 417 419 152 988 361,634 362,622 — Commercial loans 4,366 8,732 3,385 16,483 1,725,631 1,742,114 324 Total Commercial Banking 8,676 11,887 9,419 29,982 4,739,770 4,769,752 509 Total loans $ 23,435 24,373 20,490 68,298 11,286,066 11,354,364 2,511 The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2023 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 30,041 7,796 7,995 45,832 3,382,353 3,428,185 1,671 Home equity loans 5,761 982 3,126 9,869 1,217,989 1,227,858 26 Vehicle loans 10,382 3,326 3,051 16,759 1,991,842 2,008,601 44 Consumer loans 829 428 927 2,184 115,242 117,426 722 Total Personal Banking 47,013 12,532 15,099 74,644 6,707,426 6,782,070 2,463 Commercial Banking: Commercial real estate loans 2,010 1,031 6,535 9,576 2,618,881 2,628,457 225 Commercial real estate loans - owner occupied 1,194 — 177 1,371 344,182 345,553 — Commercial loans 4,196 703 2,780 7,679 1,651,050 1,658,729 10 Total Commercial Banking 7,400 1,734 9,492 18,626 4,614,113 4,632,739 235 Total originated loans $ 54,413 14,266 24,591 93,270 11,321,539 11,414,809 2,698
Schedule of credit quality indicators	The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator and the current period charge-offs by year of origination for each portfolio segment as of June 30, 2024 (in thousands): YTD June 30, 2024 2023 2022 2021 2020 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 16,707 197,466 646,931 770,828 488,009 1,192,427 — — 3,312,368 Substandard — 51 1,644 376 838 8,791 — — 11,700 Total residential mortgage loans 16,707 197,517 648,575 771,204 488,847 1,201,218 — — 3,324,068 Residential mortgage current period charge-offs — — (250) — (114) (50) — — (414) Home equity loans Pass 12,105 64,074 93,892 97,376 135,246 263,136 465,532 44,826 1,176,187 Substandard — — 130 54 233 1,275 1,361 1,246 4,299 Total home equity loans 12,105 64,074 94,022 97,430 135,479 264,411 466,893 46,072 1,180,486 Home equity current period charge-offs — — (40) (2) — (320) (228) (59) (649) Vehicle loans Pass 352,639 558,240 556,097 307,322 95,012 87,268 — — 1,956,578 Substandard 34 784 1,400 1,352 253 527 — — 4,350 Total vehicle loans 352,673 559,024 557,497 308,674 95,265 87,795 — — 1,960,928 Vehicle current period charge-offs (61) (1,153) (1,261) (1,207) (213) (619) — — (4,514) Consumer loans Pass 15,714 19,085 8,647 3,966 1,328 5,123 63,732 696 118,291 Substandard 8 88 40 21 — 18 569 95 839 Total consumer loans 15,722 19,173 8,687 3,987 1,328 5,141 64,301 791 119,130 Consumer loan current period charge-offs 202 (1,444) (325) (162) (27) (508) (333) (23) (2,620) Total Personal Banking 397,207 839,788 1,308,781 1,181,295 720,919 1,558,565 531,194 46,863 6,584,612 Commercial Banking: Commercial real estate loans Pass 97,120 236,451 509,501 269,475 300,353 906,187 26,428 24,099 2,369,614 Special mention — 3,311 25,879 39,250 15,583 17,823 805 — 102,651 Substandard 1,485 3,621 2,061 54,971 18,673 111,759 102 79 192,751 Total commercial real estate loans 98,605 243,383 537,441 363,696 334,609 1,035,769 27,335 24,178 2,665,016 Commercial real estate current period charge-offs — — (44) (360) — (445) — — (849) Commercial real estate loans - owner occupied Pass 47,702 13,022 34,667 46,645 13,637 152,801 3,397 1,281 313,152 Special mention — 2,200 3,211 1,307 — 21,510 — — 28,228 Substandard — 11,869 — — 3,334 4,368 — 1,671 21,242 Total commercial real estate loans - owner occupied 47,702 27,091 37,878 47,952 16,971 178,679 3,397 2,952 362,622 Commercial real estate - owner occupied current period charge-offs — — — — — — — — — Commercial loans Pass 322,393 402,521 298,891 35,474 15,652 64,712 530,098 3,311 1,673,052 Special mention 7,740 27,814 4,871 583 284 166 4,788 1,154 47,400 Substandard — 8,199 3,998 889 136 1,775 4,531 2,134 21,662 Total commercial loans 330,133 438,534 307,760 36,946 16,072 66,653 539,417 6,599 1,742,114 Commercial loans current period charge-offs — (47) (1,787) (115) (182) (266) (75) (10) (2,482) Total Commercial Banking 476,440 709,008 883,079 448,594 367,652 1,281,101 570,149 33,729 4,769,752 Total loans $ 873,647 1,548,796 2,191,860 1,629,889 1,088,571 2,839,666 1,101,343 80,592 11,354,364 The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of December 31, 2023 (in thousands): 2023 2022 2021 2020 2019 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 186,081 665,379 792,488 506,068 244,678 1,019,152 — — 3,413,846 Substandard — 1,581 — 1,252 311 11,195 — — 14,339 Total residential mortgage loans 186,081 666,960 792,488 507,320 244,989 1,030,347 — — 3,428,185 Residential mortgage current period charge-offs — (9) (5) (130) (23) (1,023) — — (1,189) Home equity loans Pass 71,497 100,639 106,043 146,121 94,144 197,259 463,868 43,526 1,223,097 Substandard — 236 54 197 35 1,733 1,447 1,059 4,761 Total home equity loans 71,497 100,875 106,097 146,318 94,179 198,992 465,315 44,585 1,227,858 Home equity current period charge-offs — (53) (46) — (48) (352) (144) (209) (852) Vehicle loans Pass 664,876 682,275 397,809 132,775 67,853 58,153 — — 2,003,741 Substandard 646 1,418 1,453 299 556 488 — — 4,860 Total vehicle loans 665,522 683,693 399,262 133,074 68,409 58,641 — — 2,008,601 Vehicle current period charge-offs (678) (1,844) (1,967) (475) (652) (853) — — (6,468) Consumer loans Pass 24,277 11,582 5,552 2,072 1,355 6,603 64,214 820 116,475 Substandard 55 43 19 6 6 46 726 50 951 Total consumer loans 24,332 11,625 5,571 2,078 1,361 6,649 64,940 870 117,426 Consumer loan current period charge-offs (3,412) (511) (390) (157) (177) (980) (317) (38) (5,983) Total Personal Banking 947,432 1,463,153 1,303,418 788,790 408,938 1,294,629 530,255 45,455 6,782,070 Commercial Banking: Commercial real estate loans Pass 223,335 470,762 303,873 332,620 228,382 745,244 27,583 24,804 2,356,603 Special Mention 2,819 24,735 27,871 5,365 4,053 38,665 711 — 104,219 Substandard 1,920 750 26,850 18,167 37,044 82,717 79 108 167,635 Total commercial real estate loans 228,074 496,247 358,594 356,152 269,479 866,626 28,373 24,912 2,628,457 Commercial real estate current period (14) — (492) — (51) (1,741) — — (2,298) Commercial real estate loans - Pass 24,725 51,986 47,655 15,984 28,614 140,175 2,378 2,390 313,907 Special Mention 1,221 120 1,218 — 14,386 2,952 — — 19,897 Substandard — — 118 1,666 4,646 4,641 — 678 11,749 Total commercial real estate loans - 25,946 52,106 48,991 17,650 47,646 147,768 2,378 3,068 345,553 Commercial real estate - owner occupied current period charge-offs — — — — — (68) — — (68) Commercial loans Pass 482,605 430,378 73,469 26,868 34,090 54,617 531,742 4,110 1,637,879 Special Mention 508 3,671 52 299 240 26 1,882 — 6,678 Substandard — 3,015 872 356 2,361 840 4,729 1,999 14,172 Total commercial loans 483,113 437,064 74,393 27,523 36,691 55,483 538,353 6,109 1,658,729 Commercial loans current period (35) (2,072) (517) (430) (205) (845) (60) (2) (4,166) Total Commercial Banking 737,133 985,417 481,978 401,325 353,816 1,069,877 569,104 34,089 4,632,739 Total loans $ 1,684,565 2,448,570 1,785,396 1,190,115 762,754 2,364,506 1,099,359 79,544 11,414,809

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets subject to amortization	The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): June 30, 2024 December 31, 2023 Amortizable intangible assets: Core deposit intangibles - gross $ 74,899 74,899 Less: accumulated amortization (70,945) (69,609) Core deposit intangibles - net $ 3,954 5,290 Total intangible assets - net $ 3,954 5,290
Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets	The following table shows the actual aggregate amortization expense for the quarters ended June 30, 2024 and 2023, as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the succeeding fiscal years until the intangible assets are fully amortized (in thousands): For the quarter ended June 30, 2024 $ 635 For the quarter ended June 30, 2023 842 For the six months ended June 30, 2024 1,336 For the six months ended June 30, 2023 1,751 For the year ending December 31, 2024 2,452 For the year ending December 31, 2025 1,662 For the year ending December 31, 2026 871 For the year ending December 31, 2027 305
Schedule of the changes in carrying amount of goodwill	The following table provides information for the changes in the carrying amount of goodwill (in thousands): Total Balance at December 31, 2023 $ 380,997 Balance at June 30, 2024 $ 380,997

Borrowed Funds (Tables)

Borrowed Funds (Tables)	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Schedule of borrowed funds	Borrowed funds at June 30, 2024 and December 31, 2023 are presented in the following table (dollars in thousands): June 30, 2024 December 31, 2023 Amount Average rate Amount Average rate Term notes payable to the FHLB of Pittsburgh, due within one year $ 175,000 5.65 % $ 175,000 5.71 % Notes payable to the FHLB of Pittsburgh, due within one year — — % 163,500 5.70 % Collateralized borrowings, due within one year 26,213 1.83 % 35,495 1.72 % Collateral received, due within one year 41,150 5.17 % 24,900 5.26 % Total borrowed funds $ 242,363 $ 398,895
Schedule of capital debt securities and junior subordinated deferrable interest debentures	The following table sets forth a summary of the cumulative trust preferred securities and the junior subordinated debt held by the Trust as of the date listed (dollars in thousands). Maturity date Interest rate Capital debt securities June 30, 2024 December 31, 2023 Northwest Bancorp Capital Trust III December 30, 2035 3-month SOFR plus 1.38% $ 50,000 51,547 51,547 Northwest Bancorp Statutory Trust IV December 15, 2035 3-month SOFR plus 1.38% 50,000 51,547 51,547 LNB Trust II June 15, 2037 3-month SOFR plus 1.48% 7,875 8,119 8,119 Union National Capital Trust I (1) January 23, 2034 3-month SOFR plus 2.85% 8,000 8,012 7,999 Union National Capital Trust II (1) November 23, 2034 3-month SOFR plus 2.00% 3,000 2,809 2,796 MFBC Statutory Trust I (1) September 15, 2035 3-month SOFR plus 1.70% 5,000 3,840 3,788 Universal Preferred Trust (1) October 7, 2035 3-month SOFR plus 1.69% 5,000 3,829 3,778 $ 128,875 129,703 129,574 (1) Net of discounts due to the fair value adjustment made at the time of acquisition.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Schedule of computation of basic and diluted earnings per share	The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): Quarter ended June 30, Six months ended June 30, 2024 2023 2024 2023 Numerator for earnings per share - Basic and Diluted: Net income - treasury stock method - Basic and Diluted $ 4,747 33,044 33,910 66,723 Less: Dividends and undistributed earnings allocated to participating securities 7 86 47 174 Net income available to common shareholders - two class method - Basic and Diluted $ 4,740 32,958 33,863 66,549 Denominator for earnings per share - treasury stock method - Basic and Diluted: Weighted average common shares outstanding - Basic 127,023,522 126,620,383 126,918,878 126,559,784 Add: Potentially dilutive shares 137,853 118,907 426,501 367,074 Denominator for treasury stock method - Diluted 127,161,375 126,739,290 127,345,379 126,926,858 Denominator for earnings per share - two class method - Basic and Diluted: Weighted average common shares outstanding - Basic 127,023,522 126,620,383 126,918,878 126,559,784 Add: Average participating shares outstanding 175,517 331,088 175,517 331,088 Denominator for two class method - Diluted 127,199,039 126,951,471 127,094,395 126,890,872 Basic earnings per share $ 0.04 0.26 0.27 0.53 Diluted earnings per share $ 0.04 0.26 0.27 0.52 Anti-dilutive awards (1) 2,451 2,902 2,451 2,902 (1) Reflects the total number of shares related to outstanding options that have been excluded from the computation of diluted earnings per share because the impact would have been anti-dilutive.

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans	The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands): Quarter ended June 30, Pension benefits Other post-retirement benefits 2024 2023 2024 2023 Service cost $ 1,425 1,560 — — Interest cost 2,205 2,245 15 7 Expected return on plan assets (3,776) (3,479) — — Amortization of prior service cost (563) (564) — — Amortization of the net loss 18 20 10 10 Net periodic cost $ (691) (218) 25 17 Six months ended June 30, Pension benefits Other post-retirement benefits 2024 2023 2024 2023 Service cost $ 2,850 3,120 — — Interest cost 4,410 4,490 30 14 Expected return on plan assets (7,552) (6,958) — — Amortization of prior service cost (1,126) (1,128) — — Amortization of the net loss 36 40 20 20 Net periodic cost $ (1,382) (436) 50 34

Disclosures About Fair Value _2

Disclosures About Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition	The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at June 30, 2024 (in thousands): Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 228,433 228,433 228,433 — — Securities available-for-sale 1,029,191 1,029,191 — 1,029,191 — Securities held-to-maturity 784,208 663,292 — 663,292 — Loans receivable, net 11,219,849 10,270,432 — — 10,270,432 Loans held-for-sale 9,445 9,445 — 681 8,764 Accrued interest receivable 48,739 48,739 48,739 — — Interest rate lock commitments 791 791 — — 791 Forward commitments 70 70 — 70 — Foreign exchange swaps 2 2 — 2 — Interest rate swaps designated as hedging instruments 2,726 2,726 — 2,726 — Interest rate swaps not designated as hedging instruments 44,420 44,420 — 44,420 — FHLB stock 20,842 20,842 — — — Total financial assets $ 13,388,716 12,318,383 277,172 1,740,382 10,279,987 Financial liabilities: Savings and checking deposits $ 9,261,017 9,261,017 9,261,017 — — Time deposits 2,826,362 2,472,360 — — 2,472,360 Borrowed funds 242,363 232,254 232,254 — — Subordinated debt 114,364 109,224 — 109,224 — Junior subordinated debentures 129,703 124,292 — — 124,292 Foreign exchange swaps 25 25 — 25 — Interest rate swaps not designated as hedging instruments 44,450 44,450 — 44,450 — Risk participation agreements 106 106 — 106 — Accrued interest payable 21,423 21,423 21,423 — — Total financial liabilities $ 12,639,813 12,265,151 9,514,694 153,805 2,596,652 The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2023 (in thousands): Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 122,260 122,260 122,260 — — Securities available-for-sale 1,043,359 1,043,359 — 1,043,359 — Securities held-to-maturity 814,839 699,506 — 699,506 — Loans receivable, net 11,280,798 10,274,593 — — 10,274,593 Loans held-for-sale 8,768 8,768 — — 8,768 Accrued interest receivable 47,353 47,353 47,353 — — Interest rate lock commitments 641 641 — — 641 Forward commitments 12 12 — 12 — Interest rate swaps designated as hedging instruments 713 713 — 713 — Interest rate swaps not designated as hedging instruments 41,406 41,406 — 41,406 — FHLB stock 30,146 30,146 — — — Total financial assets $ 13,390,295 12,268,757 169,613 1,784,996 10,284,002 Financial liabilities: Savings and checking accounts $ 9,377,021 9,377,021 9,377,021 — — Time deposits 2,602,881 2,113,177 — — 2,113,177 Borrowed funds 398,895 386,446 386,446 — — Subordinated debt 114,189 109,471 — 109,471 — Junior subordinated debentures 129,574 112,159 — — 112,159 Foreign exchange swaps 291 291 — 291 — Interest rate swaps designated as hedging instruments 1,198 1,198 — 1,198 — Interest rate swaps not designated as hedging instruments 41,437 41,437 — 41,437 — Risk participation agreements 14 14 — 14 — Accrued interest payable 13,669 13,669 13,669 — — Total financial liabilities $ 12,679,169 12,154,883 9,777,136 152,411 2,225,336
Schedule of assets and liabilities measured at fair value on a recurring basis	The following table represents assets and liabilities measured at fair value on a recurring basis at June 30, 2024 (in thousands): Level 1 Level 2 Level 3 Total assets Debt securities: U.S. government and agencies $ — 36,971 — 36,971 Government-sponsored enterprises — 180 — 180 States and political subdivisions — 58,741 — 58,741 Corporate — 16,757 — 16,757 Total debt securities — 112,649 — 112,649 Mortgage-backed securities: GNMA — 56,127 — 56,127 FNMA — 64,816 — 64,816 FHLMC — 95,220 — 95,220 Non-agency — 5 — 5 Collateralized mortgage obligations: GNMA — 489,211 — 489,211 FNMA — 77,941 — 77,941 FHLMC — 133,222 — 133,222 Total mortgage-backed securities — 916,542 — 916,542 Interest rate lock commitments — — 791 791 Forward commitments — 70 — 70 Foreign exchange swaps — 2 — 2 Interest rate swaps designated as hedging instruments — 2,726 — 2,726 Interest rate swaps not designated as hedging instruments — 44,420 — 44,420 Total assets $ — 1,076,409 791 1,077,200 Foreign exchange swaps $ — 25 — 25 Interest rate swaps not designated as hedging instruments — 44,450 — 44,450 Risk participation agreements — 106 — 106 Total liabilities $ — 44,581 — 44,581 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2023 (in thousands): Level 1 Level 2 Level 3 Total assets Debt securities: U.S. government and agencies $ — 58,314 — 58,314 Government-sponsored enterprises — 40,597 — 40,597 States and political subdivisions — 75,469 — 75,469 Corporate — 7,688 — 7,688 Total debt securities — 182,068 — 182,068 Mortgage-backed securities: GNMA — 17,441 — 17,441 FNMA — 102,678 — 102,678 FHLMC — 70,830 — 70,830 Non-agency — 5 — 5 Collateralized mortgage obligations: GNMA — 331,784 — 331,784 FNMA — 148,892 — 148,892 FHLMC — 189,661 — 189,661 Total mortgage-backed securities — 861,291 — 861,291 Interest rate lock commitments — — 641 641 Forward commitments — 12 — 12 Interest rate swaps designated as hedging instruments — 713 — 713 Interest rate swaps not designated as hedging instruments — 41,406 — 41,406 Total assets $ — 1,085,490 641 1,086,131 Foreign exchange swaps $ — 291 — 291 Interest rate swaps designated as hedging instruments — 1,198 — 1,198 Interest rate swaps not designated as hedging instruments — 41,437 — 41,437 Risk participation agreements — 14 — 14 Total liabilities $ — 42,940 — 42,940
Schedule of changes in Level 3 assets and liabilities measured at fair value on a recurring basis	The following table presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis (in thousands): For the quarter ended June 30, For the six months ended June 30, 2024 2023 2024 2023 Beginning balance, $ 479 386 641 559 Interest rate lock commitments: Net activity 312 375 150 202 Ending balance $ 791 761 791 761
Schedule of fair value measurement for nonrecurring assets	The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of June 30, 2024 (in thousands): Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 41,839 41,839 Mortgage servicing rights — — 19 19 Real estate owned, net — — 74 74 Total assets $ — — 41,932 41,932 The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2023 (in thousands): Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 36,747 36,747 Mortgage servicing rights — — 133 133 Real estate owned, net — — 104 104 Total assets $ — — 36,984 36,984
Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 fair value measurements	The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at June 30, 2024 (in thousands): Fair value Valuation techniques Significant Range (weighted average) Loans individually assessed $ 41,839 Appraisal value (1) Estimated cost to sell 10% Mortgage servicing rights 19 Discounted cash flow Annual service cost $89 Prepayment rate 6.5% to 16.5% (10.1%) Expected life (months) 52.7 to 102.5 (74) Option adjusted spread 727 basis points Forward yield curve 5.44% to 5.45% Real estate owned, net 74 Appraisal value (1) Estimated cost to sell 10% Loans held for sale 8,764 Quoted prices for similar loans in active markets adjusted by an expected pull-through rate Estimated pull-through rate 100% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivative instruments	The following table presents information regarding our derivative financial instruments at the dates indicated (in thousands): Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At June 30, 2024 Derivatives designated as hedging instruments: Interest rate swap agreements $ 175,000 2,726 — — Derivatives not designated as hedging instruments: Interest rate swap agreements 743,036 44,420 743,036 44,450 Foreign exchange swap agreements 2,824 2 5,790 25 Interest rate lock commitments 29,284 791 — — Forward commitments 2,661 70 — — Risk participation agreements — — 116,473 106 Total Derivatives $ 952,805 48,009 865,299 44,581 At December 31, 2023 Derivatives designated as hedging instruments: Interest rate swap agreements $ 75,000 713 100,000 1,198 Derivatives not designated as hedging instruments: Interest rate swap agreements 725,139 41,406 725,139 41,437 Foreign exchange swap agreements — — 12,278 291 Interest rate lock commitments 21,857 641 — — Forward commitments 281 12 — — Risk participation agreements — — 101,727 14 Total derivatives $ 822,277 42,772 939,144 42,940
Schedule of gain (loss) on derivative instruments	The following table presents income or expense recognized on derivatives for the periods indicated (in thousands): For the quarter ended June 30, For the six months ended June 30, 2024 2023 2024 2023 Hedging derivatives: Decrease in interest expense $ 734 203 1,467 203 Non-hedging swap derivatives: (Decrease)/increase in other income (112) (128) 175 (330) Increase in mortgage banking income 323 349 208 176
Schedule of interest rate products designated as hedging instruments	The following table presents information regarding our derivative financial instruments designated as hedging for the quarter ended June 30, 2024 (dollars in thousands): Notional amount Effective rate Estimated decrease to interest expense in the next twelve months Maturity date Remaining term Interest rate products: Issued May 11, 2023 $ 25,000 3.50 % $ (543) 5/11/2027 34 Issued May 12, 2023 25,000 3.54 % (532) 5/12/2028 46 Issued May 19, 2023 25,000 3.83 % (458) 11/19/2027 41 Issued May 31, 2023 25,000 4.05 % (404) 11/30/2026 29 Issued July 26, 2023 25,000 4.24 % (356) 7/26/2028 49 Issued July 31, 2023 25,000 4.35 % (334) 1/31/2028 43 Issued August 9, 2023 25,000 4.32 % (337) 8/9/2027 37 Total $ 175,000 $ (2,964)

Changes in Accumulated Other _2

Changes in Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of changes in accumulated other comprehensive income by component	The following tables show the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): For the quarter ended June 30, 2024 Unrealized Change in Change in Total Balance as of March 31, 2024 $ (156,357) 1,780 1,153 (153,424) Other comprehensive (loss)/income before reclassification adjustments (1) (3) (3,391) 330 — (3,061) Amounts reclassified from accumulated other comprehensive income (2) (4) 26,789 — (388) 26,401 Net other comprehensive income/(loss) 23,398 330 (388) 23,340 Balance as of June 30, 2024 $ (132,959) 2,110 765 (130,084) For the quarter ended June 30, 2023 Unrealized Change in Change in Total Balance as of March 31, 2023 $ (151,189) — (7,334) (158,523) Other comprehensive income before reclassification adjustments (5) (7) (17,719) 1,737 — (15,982) Amounts reclassified from accumulated other comprehensive income (6) (8) 5,636 — (382) 5,254 Net other comprehensive income/(loss) (12,083) 1,737 (382) (10,728) Balance as of June 30, 2023 $ (163,272) 1,737 (7,716) (169,251) (1) Consists of unrealized holding losses, net of tax of $168 . (2) Consists of realized losses, net of tax of ($7,706) . (3) Change in fair value of interest rate swaps, net of tax ($96) . (4) Consists of realized gains, net of tax of $147 . (5) Consists of unrealized holding losses, net of tax of $3,771 . (6) Consists of realized losses, net of tax of ($1,731) . (7) Change in fair value of interest rate swaps, net of tax ($508) . (8) Consists of realized gains, net of tax of $152 . For the six months ended June 30, 2024 Unrealized Change in Change in Total Balance as of December 31, 2023 $ (150,659) (374) 1,541 (149,492) Other comprehensive (loss)/income before reclassification adjustments (1) (3) (9,089) 2,484 — (6,605) Amounts reclassified from accumulated other comprehensive income (2) (4) 26,789 — (776) 26,013 Net other comprehensive income/(loss) 17,700 2,484 (776) 19,408 Balance as of June 30, 2024 $ (132,959) 2,110 765 (130,084) For the six months ended June 30, 2023 Unrealized Change in Change in Total Balance as of December 31, 2022 $ (164,206) — (6,952) (171,158) Other comprehensive loss before reclassification adjustments (5) (7) (4,702) 1,737 — (2,965) Amounts reclassified from accumulated other comprehensive income (6) (8) 5,636 — (764) 4,872 Net other comprehensive loss 934 1,737 (764) 1,907 Balance as of June 30, 2023 $ (163,272) 1,737 (7,716) (169,251) (1) Consists of unrealized holding losses, net of tax of $1,926 . (2) Consists of realized losses, net of tax of ($7,706) . (3) Change in fair value of interest rate swaps, net of tax ($726) . (4) Consists of realized gains, net of tax of $294 . (5) Consists of unrealized holding losses, net of tax $463 . (6) Consists of realized losses, net of tax ($1,731) . (7) Change in fair value of interest rate swaps, net of tax ($508) . (8) Consists of realized gains, net of tax of $304 .

Basis of Presentation and Inf_3

Basis of Presentation and Informational Disclosures (Details)	Jun. 30, 2024 bank_location
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of banking locations	139

Marketable Securities - Availab

Marketable Securities - Available For Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized cost
Residential mortgage-backed securities	$ 1,202,354	$ 1,240,003
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	484	223
Gross unrealized holding losses
Gross unrealized holding losses	(173,647)	(196,867)
Fair value
Fair value	1,029,191	1,043,359
U.S. government and agencies
Amortized cost
Due after one year through five years		20,000
Due after ten years	47,263	49,383
Gross unrealized holding gains
Due after one year through five years		0
Due after ten years	0	0
Gross unrealized holding losses
Due after one year through five years		(1,135)
Due after ten years	(10,292)	(9,934)
Fair value
Due after one year through five years		18,865
Due after ten years	36,971	39,449
Government-sponsored enterprises
Amortized cost
Due after one year through five years	185	45,986
Due after five years through ten years		386
Gross unrealized holding gains
Due after one year through five years	0	0
Due after five years through ten years		0
Gross unrealized holding losses
Due after one year through five years	(5)	(5,763)
Due after five years through ten years		(12)
Fair value
Due after one year through five years	180	40,223
Due after five years through ten years		374
Municipal securities
Amortized cost
Due after one year through five years	880	4,279
Due after five years through ten years	9,157	20,725
Due after ten years	58,872	60,762
Gross unrealized holding gains
Due after one year through five years	8	22
Due after five years through ten years	5	0
Due after ten years	13	125
Gross unrealized holding losses
Due after one year through five years	(3)	(427)
Due after five years through ten years	(1,565)	(1,437)
Due after ten years	(8,626)	(8,580)
Fair value
Due after one year through five years	885	3,874
Due after five years through ten years	7,597	19,288
Due after ten years	50,259	52,307
Corporate debt issues
Amortized cost
Due after five years through ten years	14,373	8,466
Due after ten years	3,250
Gross unrealized holding gains
Due after five years through ten years	20	0
Due after ten years	0
Gross unrealized holding losses
Due after five years through ten years	(886)	(778)
Due after ten years	0
Fair value
Due after five years through ten years	13,507	7,688
Due after ten years	3,250
Mortgage-backed securities
Amortized cost
Due after one year through five years	11,289
Due after five years through ten years	8,021
Due after ten years	1,048,990
Residential mortgage-backed securities	1,068,374	1,030,016
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	438	76
Gross unrealized holding losses
Gross unrealized holding losses	(152,270)	(168,801)
Fair value
Due after one year through five years	11,185
Due after five years through ten years	7,022
Due after ten years	898,260
Fair value	916,542	861,291
Fixed rate pass-through
Amortized cost
Residential mortgage-backed securities	228,855	209,069
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	83	27
Gross unrealized holding losses
Gross unrealized holding losses	(16,874)	(25,222)
Fair value
Fair value	212,064	183,874
Variable rate pass-through
Amortized cost
Residential mortgage-backed securities	4,093	7,140
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	24	11
Gross unrealized holding losses
Gross unrealized holding losses	(13)	(71)
Fair value
Fair value	4,104	7,080
Fixed rate agency CMOs
Amortized cost
Residential mortgage-backed securities	789,673	789,842
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	293	0
Gross unrealized holding losses
Gross unrealized holding losses	(135,258)	(143,055)
Fair value
Fair value	654,708	646,787
Variable rate agency CMOs
Amortized cost
Residential mortgage-backed securities	45,753	23,965
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	38	38
Gross unrealized holding losses
Gross unrealized holding losses	(125)	(453)
Fair value
Fair value	$ 45,666	$ 23,550

Marketable Securities - Held To

Marketable Securities - Held To Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized cost
Amortized cost	$ 784,208	$ 814,839
Gross unrealized holding gains
Gross unrealized holding gains	0	1
Gross unrealized holding losses
Gross unrealized holding losses	(120,916)	(115,334)
Fair value
Fair value	663,292	699,506
U.S. government-sponsored enterprises
Amortized cost
Due after one year through five years	89,472	69,471
Due after five years through ten years	34,988	54,987
Gross unrealized holding gains
Due after one year through five years	0	0
Due after five years through ten years	0	0
Gross unrealized holding losses
Due after one year through five years	(10,845)	(8,100)
Due after five years through ten years	(5,645)	(8,700)
Fair value
Due after one year through five years	78,627	61,371
Due after five years through ten years	29,343	46,287
Mortgage-backed securities
Amortized cost
Due after one year through five years	20,010
Due after five years through ten years	20,201
Amortized cost	659,748	690,381
Gross unrealized holding gains
Gross unrealized holding gains	0	1
Gross unrealized holding losses
Gross unrealized holding losses	(104,426)	(98,534)
Fair value
Due after one year through five years	17,581
Due after five years through ten years	16,321
Fair value	555,322	591,848
Fixed rate pass-through
Amortized cost
Amortized cost	140,245	147,874
Gross unrealized holding gains
Gross unrealized holding gains	0	0
Gross unrealized holding losses
Gross unrealized holding losses	(21,704)	(20,834)
Fair value
Fair value	118,541	127,040
Variable rate pass-through
Amortized cost
Amortized cost	414	449
Gross unrealized holding gains
Gross unrealized holding gains	0	1
Gross unrealized holding losses
Gross unrealized holding losses	(4)	0
Fair value
Fair value	410	450
Fixed rate agency CMOs
Amortized cost
Amortized cost	518,560	541,529
Gross unrealized holding gains
Gross unrealized holding gains	0	0
Gross unrealized holding losses
Gross unrealized holding losses	(82,714)	(77,694)
Fair value
Fair value	435,846	463,835
Variable rate agency CMOs
Amortized cost
Amortized cost	529	529
Gross unrealized holding gains
Gross unrealized holding gains	0	0
Gross unrealized holding losses
Gross unrealized holding losses	(4)	(6)
Fair value
Fair value	$ 525	$ 523

Marketable Securities - Avail_2

Marketable Securities - Available-for-sale, by Contractual Maturity (Details) - Mortgage-backed securities $ in Thousands	Jun. 30, 2024 USD ($)
Amortized cost
Due within one year	$ 74
Due after one year through five years	11,289
Due after five years through ten years	8,021
Due after ten years	1,048,990
Total mortgage-backed securities	1,068,374
Fair value
Due within one year	75
Due after one year through five years	11,185
Due after five years through ten years	7,022
Due after ten years	898,260
Total mortgage-backed securities	$ 916,542

Marketable Securities - Held _2

Marketable Securities - Held To Maturity, by Contractual Maturity (Details) - Mortgage-backed securities $ in Thousands	Jun. 30, 2024 USD ($)
Amortized cost
Due within one year	$ 102
Due after one year through five years	20,010
Due after five years through ten years	20,201
Due after ten years	619,435
Amortized cost	659,748
Fair value
Due within one year	100
Due after one year through five years	17,581
Due after five years through ten years	16,321
Due after ten years	521,320
Total mortgage-backed securities	$ 555,322

Marketable Securities - Fair Va

Marketable Securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($) position	Dec. 31, 2023 USD ($)
Marketable securities available-for-sale
Less than 12 months - Fair value	$ 264,119	$ 20,729
Less than 12 months - Unrealized loss	(1,237)	(323)
12 months or more - Fair value	1,363,076	1,704,010
12 months or more - Unrealized loss	(293,326)	(311,878)
Total - Fair value	1,627,195	1,724,739
Total - Unrealized loss	$ (294,563)	(312,201)
Number of investment positions with unrealized losses | position	387
U.S. government-sponsored enterprises
Marketable securities available-for-sale
Less than 12 months - Fair value	$ 0	0
Less than 12 months - Unrealized loss	0	0
12 months or more - Fair value	145,120	206,569
12 months or more - Unrealized loss	(26,787)	(33,644)
Total - Fair value	145,120	206,569
Total - Unrealized loss	(26,787)	(33,644)
Corporate debt issues
Marketable securities available-for-sale
Less than 12 months - Fair value	2,395	0
Less than 12 months - Unrealized loss	(38)	0
12 months or more - Fair value	7,619	7,688
12 months or more - Unrealized loss	(848)	(778)
Total - Fair value	10,014	7,688
Total - Unrealized loss	(886)	(778)
Municipal securities
Marketable securities available-for-sale
Less than 12 months - Fair value	13,977	2,753
Less than 12 months - Unrealized loss	(140)	(81)
12 months or more - Fair value	39,354	66,046
12 months or more - Unrealized loss	(10,054)	(10,363)
Total - Fair value	53,331	68,799
Total - Unrealized loss	(10,194)	(10,444)
Mortgage-backed securities
Marketable securities available-for-sale
Less than 12 months - Fair value	247,747	17,976
Less than 12 months - Unrealized loss	(1,059)	(242)
12 months or more - Fair value	1,170,983	1,423,707
12 months or more - Unrealized loss	(255,637)	(267,093)
Total - Fair value	1,418,730	1,441,683
Total - Unrealized loss	$ (256,696)	$ (267,335)

Marketable Securities - Credit

Marketable Securities - Credit Quality of Held To Maturity Securities (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	$ 784,208
Mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	659,748
U.S. government and agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	124,460
AA+
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	784,208
AA+ | Mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	659,748
AA+ | U.S. government and agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	$ 124,460

Loans Receivable - Originated a

Loans Receivable - Originated and Acquired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 11,354,364		$ 11,414,809
Allowance for credit losses	(125,070)	$ (124,897)	(125,243)	$ (124,423)	$ (121,257)	$ (118,036)
Total loans receivable, net	11,229,294		11,289,566
Loans held-for-sale	9,445		8,768
Unearned income, unamortized premiums and discounts and deferred fees and costs	$ 65,000		68,000
Weighted-average payment deferral in years	1 year
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 6,584,612		6,782,070
Allowance for credit losses	$ (43,241)	(44,668)	(51,706)	(50,851)	(51,617)	(48,887)
Weighted-average payment deferral in years	0 years
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 3,324,068		3,428,185
Allowance for credit losses	(14,999)	(16,821)	(18,193)	(17,556)	(19,238)	(19,261)
Loans held-for-sale	$ 9,000		9,000
Weighted-average payment deferral in years	0 years
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 1,180,486		1,227,858
Allowance for credit losses	$ (5,210)	(5,334)	(5,403)	(5,002)	(5,481)	(5,902)
Weighted-average payment deferral in years	0 years
Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 1,960,928		2,008,601
Allowance for credit losses	(21,364)	(21,061)	(26,911)	(27,283)	(26,166)	(23,059)
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	119,130		117,426
Allowance for credit losses	$ (1,668)	(1,452)	(1,199)	(1,010)	(732)	(665)
Weighted-average payment deferral in years	0 years
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 4,769,752		4,632,739
Allowance for credit losses	$ (81,829)	(80,229)	(73,537)	(73,572)	(69,640)	(69,149)
Weighted-average payment deferral in years	1 year
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 2,665,016		2,628,457
Allowance for credit losses	(50,559)	(54,474)	(51,267)	(50,056)	(45,404)	(44,506)
Loans held-for-sale	$ 681		0
Weighted-average payment deferral in years	1 year
Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 362,622		345,553
Allowance for credit losses	$ (3,615)	(4,055)	(3,775)	(3,498)	(3,351)	(4,004)
Weighted-average payment deferral in years	0 years
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 1,742,114		1,658,729
Allowance for credit losses	$ (27,655)	$ (21,700)	(18,495)	$ (20,018)	$ (20,885)	$ (20,639)
Weighted-average payment deferral in years	0 years
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 10,774,315		10,773,908
Allowance for credit losses	(119,575)		(118,079)
Total loans receivable, net	10,654,740		10,655,829
Originated | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	6,278,393		6,441,695
Originated | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	3,189,086		3,283,299
Originated | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,069,569		1,103,410
Originated | Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,905,878		1,943,540
Originated | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	113,860		111,446
Originated | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	4,495,922		4,332,213
Originated | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,445,069		2,389,537
Originated | Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	338,014		319,195
Originated | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,712,839		1,623,481
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	580,049		640,901
Allowance for credit losses	(5,495)		(7,164)
Total loans receivable, net	574,554		633,737
Acquired | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	306,219		340,375
Acquired | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	134,982		144,886
Acquired | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	110,917		124,448
Acquired | Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	55,050		65,061
Acquired | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	5,270		5,980
Acquired | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	273,830		300,526
Acquired | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	219,947		238,920
Acquired | Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	24,608		26,358
Acquired | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 29,275		$ 35,248

Loans Receivable - Changes in t

Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Changes in allowance for losses on allocated loans receivable
Beginning balance	$ 124,897	$ 121,257	$ 125,243	$ 118,036	$ 118,036
Current period provision	2,169	6,010	6,403	10,880
Charge-offs	(4,869)	(5,244)	(11,528)	(9,871)
Recoveries	2,873	2,400	4,952	4,952
Ending balance	125,070	124,423	125,070	124,423	125,243
ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				426	426
Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	16,324	13,039	17,123	12,913	12,913
Current period provision	(2,539)	2,920	(3,338)	3,046
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	13,785	15,959	13,785	15,959	17,123
Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	44,668	51,617	51,706	48,887	48,887
Current period provision	(453)	1,129	(3,552)	5,727
Charge-offs	(3,050)	(3,552)	(8,197)	(6,657)
Recoveries	2,076	1,657	3,284	2,894
Ending balance	43,241	50,851	43,241	50,851	51,706
Personal Banking | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	65	63	67	78	78
Current period provision	(1)	5	(3)	(10)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	64	68	64	68	67
Personal Banking | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	16,821	19,238	18,193	19,261	19,261
Current period provision	(2,375)	(1,676)	(3,774)	(1,677)
Charge-offs	(252)	(545)	(414)	(752)	(1,189)
Recoveries	805	539	994	724
Ending balance	14,999	17,556	14,999	17,556	18,193
Personal Banking | Residential mortgage loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Residential mortgage loans | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	1	3	2	4	4
Current period provision	0	1	(1)	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	1	4	1	4	2
Personal Banking | Residential mortgage loans | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,334	5,481	5,403	5,902	5,902
Current period provision	(279)	(456)	(134)	(906)
Charge-offs	(237)	(235)	(649)	(399)	(852)
Recoveries	392	212	590	405
Ending balance	5,210	5,002	5,210	5,002	5,403
Personal Banking | Home equity loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Home equity loans | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	64	60	65	74	74
Current period provision	(1)	4	(2)	(10)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	63	64	63	64	65
Personal Banking | Home equity loans | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Vehicle loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	21,061	26,166	26,911	23,059	23,059
Current period provision	1,767	2,030	(1,927)	6,283
Charge-offs	(1,926)	(1,539)	(4,514)	(3,207)	(6,468)
Recoveries	462	626	894	1,148
Ending balance	21,364	27,283	21,364	27,283	26,911
Personal Banking | Vehicle loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	1,452	732	1,199	665	665
Current period provision	434	1,231	2,283	2,027
Charge-offs	(635)	(1,233)	(2,620)	(2,299)	(5,983)
Recoveries	417	280	806	617
Ending balance	1,668	1,010	1,668	1,010	1,199
Personal Banking | Consumer loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	80,229	69,640	73,537	69,149	69,149
Current period provision	2,622	4,881	9,955	5,153
Charge-offs	(1,819)	(1,692)	(3,331)	(3,214)
Recoveries	797	743	1,668	2,058
Ending balance	81,829	73,572	81,829	73,572	73,537
Commercial Banking | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				426	426
Commercial Banking | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	16,259	12,976	17,056	12,835	12,835
Current period provision	(2,538)	2,915	(3,335)	3,056
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	13,721	15,891	13,721	15,891	17,056
Commercial Banking | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	54,474	45,404	51,267	44,506	44,506
Current period provision	(3,785)	4,576	(712)	4,697
Charge-offs	(500)	(415)	(849)	(1,072)	(2,298)
Recoveries	370	491	853	1,499
Ending balance	50,559	50,056	50,559	50,056	51,267
Commercial Banking | Commercial real estate loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				426	426
Commercial Banking | Commercial real estate loans | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	6,218	5,924	6,147	5,375	5,375
Current period provision	(1,768)	1,731	(1,697)	2,280
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	4,450	7,655	4,450	7,655	6,147
Commercial Banking | Commercial real estate loans | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	4,055	3,351	3,775	4,004	4,004
Current period provision	(453)	189	(181)	(485)
Charge-offs	0	(68)	0	(68)	(68)
Recoveries	13	26	21	47
Ending balance	3,615	3,498	3,615	3,498	3,775
Commercial Banking | Commercial real estate loans - owner occupied | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking | Commercial real estate loans - owner occupied | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	154	441	173	379	379
Current period provision	(3)	(121)	(22)	(59)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	151	320	151	320	173
Commercial Banking | Commercial real estate loans - owner occupied | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	21,700	20,885	18,495	20,639	20,639
Current period provision	6,860	116	10,848	941
Charge-offs	(1,319)	(1,209)	(2,482)	(2,074)	(4,166)
Recoveries	414	226	794	512
Ending balance	27,655	20,018	27,655	20,018	18,495
Commercial Banking | Commercial loans | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				0	0
Commercial Banking | Commercial loans | Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	9,887	6,611	10,736	7,081	7,081
Current period provision	(767)	1,305	(1,616)	835
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	$ 9,120	$ 7,916	$ 9,120	7,916	10,736
Commercial Banking | Commercial loans | Off-Balance Sheet Exposure | ASU 2022-02 Adoption
Changes in allowance for losses on allocated loans receivable
Beginning balance				$ 0	$ 0

Loans Receivable - Loan Portfol

Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 11,354,364		$ 11,414,809
Allowance for credit losses	125,070	$ 124,897	125,243	$ 124,423	$ 121,257	$ 118,036
Nonaccrual loans	102,159		94,384			81,236
Loans 90 days past due and accruing	2,511		2,698
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	6,584,612		6,782,070
Allowance for credit losses	43,241	44,668	51,706	50,851	51,617	48,887
Nonaccrual loans	15,067		18,264			15,746
Loans 90 days past due and accruing	2,002		2,463
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	3,324,068		3,428,185
Allowance for credit losses	14,999	16,821	18,193	17,556	19,238	19,261
Nonaccrual loans	6,403		8,727			7,574
Loans 90 days past due and accruing	1,390		1,671
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,180,486		1,227,858
Allowance for credit losses	5,210	5,334	5,403	5,002	5,481	5,902
Nonaccrual loans	4,055		4,492			4,145
Loans 90 days past due and accruing	34		26
Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,960,928		2,008,601
Allowance for credit losses	21,364	21,061	26,911	27,283	26,166	23,059
Nonaccrual loans	4,342		4,816			3,771
Loans 90 days past due and accruing	8		44
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	119,130		117,426
Allowance for credit losses	1,668	1,452	1,199	1,010	732	665
Nonaccrual loans	267		229			256
Loans 90 days past due and accruing	570		722
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	4,769,752		4,632,739
Allowance for credit losses	81,829	80,229	73,537	73,572	69,640	69,149
Nonaccrual loans	87,092		76,120			65,490
Loans 90 days past due and accruing	509		235
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	2,665,016		2,628,457
Allowance for credit losses	50,559	54,474	51,267	50,056	45,404	44,506
Nonaccrual loans	73,989		71,297			62,239
Loans 90 days past due and accruing	185		225
Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	362,622		345,553
Allowance for credit losses	3,615	4,055	3,775	3,498	3,351	4,004
Nonaccrual loans	983		676			624
Loans 90 days past due and accruing	0		0
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,742,114		1,658,729
Allowance for credit losses	27,655	$ 21,700	18,495	$ 20,018	$ 20,885	20,639
Nonaccrual loans	12,120		4,147			$ 2,627
Loans 90 days past due and accruing	$ 324		$ 10

Loans Receivable - Composition

Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		$ 94,384,000	$ 81,236,000
Nonaccrual loans with an allowance	$ 78,970,000	78,970,000	68,835,000
Nonaccrual loans with no allowance	23,189,000	23,189,000	25,549,000
Nonaccrual loans at ending balance	102,159,000	102,159,000	94,384,000
Loans 90 days past due and accruing	2,511,000	2,511,000	2,698,000
Interest income, accrual method	0	0	0
Amortized cost basis of collateral-dependent loans	77,254,000	77,254,000	67,084,000
Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	70,707,000	70,707,000	67,084,000
Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	6,547,000	6,547,000
Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		18,264,000	15,746,000
Nonaccrual loans with an allowance	13,552,000	13,552,000	16,804,000
Nonaccrual loans with no allowance	1,515,000	1,515,000	1,460,000
Nonaccrual loans at ending balance	15,067,000	15,067,000	18,264,000
Loans 90 days past due and accruing	2,002,000	2,002,000	2,463,000
Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		8,727,000	7,574,000
Nonaccrual loans with an allowance	5,803,000	5,803,000	8,304,000
Nonaccrual loans with no allowance	600,000	600,000	423,000
Nonaccrual loans at ending balance	6,403,000	6,403,000	8,727,000
Loans 90 days past due and accruing	1,390,000	1,390,000	1,671,000
Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		4,492,000	4,145,000
Nonaccrual loans with an allowance	3,907,000	3,907,000	4,084,000
Nonaccrual loans with no allowance	148,000	148,000	408,000
Nonaccrual loans at ending balance	4,055,000	4,055,000	4,492,000
Loans 90 days past due and accruing	34,000	34,000	26,000
Personal Banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		4,816,000	3,771,000
Nonaccrual loans with an allowance	3,585,000	3,585,000	4,187,000
Nonaccrual loans with no allowance	757,000	757,000	629,000
Nonaccrual loans at ending balance	4,342,000	4,342,000	4,816,000
Loans 90 days past due and accruing	8,000	8,000	44,000
Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		229,000	256,000
Nonaccrual loans with an allowance	257,000	257,000	229,000
Nonaccrual loans with no allowance	10,000	10,000	0
Nonaccrual loans at ending balance	267,000	267,000	229,000
Loans 90 days past due and accruing	570,000	570,000	722,000
Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		76,120,000	65,490,000
Nonaccrual loans with an allowance	65,418,000	65,418,000	52,031,000
Nonaccrual loans with no allowance	21,674,000	21,674,000	24,089,000
Nonaccrual loans at ending balance	87,092,000	87,092,000	76,120,000
Loans 90 days past due and accruing	509,000	509,000	235,000
Amortized cost basis of collateral-dependent loans	77,254,000	77,254,000	67,084,000
Commercial Banking | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	70,707,000	70,707,000	67,084,000
Commercial Banking | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	6,547,000	6,547,000
Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		71,297,000	62,239,000
Nonaccrual loans with an allowance	52,491,000	52,491,000	47,359,000
Nonaccrual loans with no allowance	21,498,000	21,498,000	23,938,000
Nonaccrual loans at ending balance	73,989,000	73,989,000	71,297,000
Loans 90 days past due and accruing	185,000	185,000	225,000
Amortized cost basis of collateral-dependent loans	69,173,000	69,173,000	66,934,000
Commercial Banking | Commercial real estate loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	67,688,000	67,688,000	66,934,000
Commercial Banking | Commercial real estate loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,485,000	1,485,000
Commercial Banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		676,000	624,000
Nonaccrual loans with an allowance	983,000	983,000	676,000
Nonaccrual loans with no allowance	0	0	0
Nonaccrual loans at ending balance	983,000	983,000	676,000
Loans 90 days past due and accruing	0	0	0
Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance		4,147,000	2,627,000
Nonaccrual loans with an allowance	11,944,000	11,944,000	3,996,000
Nonaccrual loans with no allowance	176,000	176,000	151,000
Nonaccrual loans at ending balance	12,120,000	12,120,000	4,147,000
Loans 90 days past due and accruing	324,000	324,000	10,000
Amortized cost basis of collateral-dependent loans	8,081,000	8,081,000	150,000
Commercial Banking | Commercial loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,019,000	3,019,000	$ 150,000
Commercial Banking | Commercial loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	$ 5,062,000	$ 5,062,000

Loans Receivable - Amortized Co

Loans Receivable - Amortized Cost Basis of Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Troubled debt restructurings
Total class of financing receivable	0.01%	0%	0.28%	0.01%
Committed to lend additional amounts	$ 41	$ 31	$ 41	$ 31
Payment delay
Troubled debt restructurings
Loans modified in period			29,764
Term extension
Troubled debt restructurings
Loans modified in period	57	$ 200	1,289	1,308
Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 697		697
Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 95	$ 3
Personal Banking
Troubled debt restructurings
Total class of financing receivable	0%	0%	0.02%	0.01%
Personal Banking | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Personal Banking | Term extension
Troubled debt restructurings
Loans modified in period	$ 57	$ 200	1,048	$ 428
Personal Banking | Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 0		0
Personal Banking | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 86	$ 3
Personal Banking | Residential mortgage loans
Troubled debt restructurings
Total class of financing receivable	0%	0%	0.01%	0.01%
Personal Banking | Residential mortgage loans | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Personal Banking | Residential mortgage loans | Term extension
Troubled debt restructurings
Loans modified in period	$ 15	$ 82	497	$ 262
Personal Banking | Residential mortgage loans | Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 0		0
Personal Banking | Residential mortgage loans | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 0	$ 0
Personal Banking | Home equity loans
Troubled debt restructurings
Total class of financing receivable	0%	0.01%	0.05%	0.01%
Personal Banking | Home equity loans | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Personal Banking | Home equity loans | Term extension
Troubled debt restructurings
Loans modified in period	$ 42	$ 118	551	$ 166
Personal Banking | Home equity loans | Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 0		0
Personal Banking | Home equity loans | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 84	$ 0
Personal Banking | Consumer loans
Troubled debt restructurings
Total class of financing receivable			0%	0%
Personal Banking | Consumer loans | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Personal Banking | Consumer loans | Term extension
Troubled debt restructurings
Loans modified in period			0	$ 0
Personal Banking | Consumer loans | Interest rate reduction
Troubled debt restructurings
Loans modified in period			0
Personal Banking | Consumer loans | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 2	$ 3
Commercial Banking
Troubled debt restructurings
Total class of financing receivable	0.01%	0%	0.64%	0.02%
Commercial Banking | Payment delay
Troubled debt restructurings
Loans modified in period			$ 29,764
Commercial Banking | Term extension
Troubled debt restructurings
Loans modified in period	$ 0	$ 0	241	$ 880
Commercial Banking | Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 697		697
Commercial Banking | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 9	$ 0
Commercial Banking | Commercial real estate loans
Troubled debt restructurings
Total class of financing receivable			1.12%	0.01%
Commercial Banking | Commercial real estate loans | Payment delay
Troubled debt restructurings
Loans modified in period			$ 29,764
Commercial Banking | Commercial real estate loans | Term extension
Troubled debt restructurings
Loans modified in period			210	$ 220
Commercial Banking | Commercial real estate loans | Interest rate reduction
Troubled debt restructurings
Loans modified in period			0
Commercial Banking | Commercial real estate loans | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 0	$ 0
Commercial Banking | Commercial real estate loans - owner occupied
Troubled debt restructurings
Total class of financing receivable	0.19%	0%	0.19%	0%
Commercial Banking | Commercial real estate loans - owner occupied | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Commercial Banking | Commercial real estate loans - owner occupied | Term extension
Troubled debt restructurings
Loans modified in period	$ 0	$ 0	0	$ 0
Commercial Banking | Commercial real estate loans - owner occupied | Interest rate reduction
Troubled debt restructurings
Loans modified in period	$ 697		697
Commercial Banking | Commercial real estate loans - owner occupied | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 0	$ 0
Commercial Banking | Commercial loans
Troubled debt restructurings
Total class of financing receivable			0%	0.05%
Commercial Banking | Commercial loans | Payment delay
Troubled debt restructurings
Loans modified in period			$ 0
Commercial Banking | Commercial loans | Term extension
Troubled debt restructurings
Loans modified in period			31	$ 660
Commercial Banking | Commercial loans | Interest rate reduction
Troubled debt restructurings
Loans modified in period			0
Commercial Banking | Commercial loans | Combination term extension and interest rate reduction
Troubled debt restructurings
Loans modified in period			$ 9	$ 0

Loans Receivable - Financing Re

Loans Receivable - Financing Receivable Weighted Average Modified Period (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Troubled debt restructurings
Weighted-average interest rate reduction	2%		2%	12%
Weighted-average term extension in months	0 months	66 months	118 months	45 months
Weighted-average payment deferral in years	1 year		1 year
Personal Banking
Troubled debt restructurings
Weighted-average interest rate reduction	0%		2%	12%
Weighted-average term extension in months	112 months	66 months	119 months	111 months
Weighted-average payment deferral in years	0 years		0 years
Personal Banking | Residential mortgage loans
Troubled debt restructurings
Weighted-average interest rate reduction	0%		0%	0%
Weighted-average term extension in months	220 months	100 months	145 months	132 months
Weighted-average payment deferral in years	0 years		0 years
Personal Banking | Home equity loans
Troubled debt restructurings
Weighted-average interest rate reduction	0%		2%	0%
Weighted-average term extension in months	73 months	42 months	97 months	73 months
Weighted-average payment deferral in years	0 years		0 years
Personal Banking | Consumer loans
Troubled debt restructurings
Weighted-average interest rate reduction	0%		12%	12%
Weighted-average term extension in months	0 months	9 months	356 months	319 months
Weighted-average payment deferral in years	0 years		0 years
Commercial Banking
Troubled debt restructurings
Weighted-average interest rate reduction	2%		2%	0%
Weighted-average term extension in months	0 months	0 months	117 months	13 months
Weighted-average payment deferral in years	1 year		1 year
Commercial Banking | Commercial real estate loans - owner occupied
Troubled debt restructurings
Weighted-average interest rate reduction	2%		2%	0%
Weighted-average term extension in months	0 months	0 months	0 months	0 months
Weighted-average payment deferral in years	0 years		0 years
Commercial Banking | Commercial real estate loans
Troubled debt restructurings
Weighted-average interest rate reduction			0%	0%
Weighted-average term extension in months			117 months	25 months
Weighted-average payment deferral in years	1 year		1 year
Commercial Banking | Commercial loans
Troubled debt restructurings
Weighted-average interest rate reduction			4%	0%
Weighted-average term extension in months			118 months	9 months
Weighted-average payment deferral in years	0 years		0 years

Loans Receivable - Performance

Loans Receivable - Performance of Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Current
Troubled debt restructurings
Loans modified in period	$ 31,708	$ 512
30-59 days delinquent
Troubled debt restructurings
Loans modified in period	95	799
60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	30	0
Personal Banking | Current
Troubled debt restructurings
Loans modified in period	1,027	431
Personal Banking | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	90	0
Personal Banking | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
Personal Banking | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	5	0
Personal Banking | Residential mortgage loans | Current
Troubled debt restructurings
Loans modified in period	492	262
Personal Banking | Residential mortgage loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Residential mortgage loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Residential mortgage loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	5	0
Personal Banking | Home equity loans | Current
Troubled debt restructurings
Loans modified in period	533	166
Personal Banking | Home equity loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	90	0
Personal Banking | Home equity loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	12	0
Personal Banking | Home equity loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | Current
Troubled debt restructurings
Loans modified in period	2	3
Personal Banking | Consumer loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Personal Banking | Consumer loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Current
Troubled debt restructurings
Loans modified in period	30,681	81
Commercial Banking | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	5	799
Commercial Banking | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	25	0
Commercial Banking | Commercial real estate loans | Current
Troubled debt restructurings
Loans modified in period	29,974	81
Commercial Banking | Commercial real estate loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0	139
Commercial Banking | Commercial real estate loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial real estate loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial real estate loans - owner occupied | Current
Troubled debt restructurings
Loans modified in period	697
Commercial Banking | Commercial real estate loans - owner occupied | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial real estate loans - owner occupied | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial real estate loans - owner occupied | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	0
Commercial Banking | Commercial loans | Current
Troubled debt restructurings
Loans modified in period	10	0
Commercial Banking | Commercial loans | 30-59 days delinquent
Troubled debt restructurings
Loans modified in period	5	660
Commercial Banking | Commercial loans | 60-89 days delinquent
Troubled debt restructurings
Loans modified in period	0	0
Commercial Banking | Commercial loans | 90 days or greater delinquent
Troubled debt restructurings
Loans modified in period	$ 25	$ 0

Loans Receivable - Loans Modifi

Loans Receivable - Loans Modified with Payment Default (Details) - Term extension $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Financing Receivable, Modified, Subsequent Default [Line Items]
Loans with payment default and modified	$ 30
Personal Banking
Financing Receivable, Modified, Subsequent Default [Line Items]
Loans with payment default and modified	5
Personal Banking | Residential mortgage loans
Financing Receivable, Modified, Subsequent Default [Line Items]
Loans with payment default and modified	5
Commercial Banking
Financing Receivable, Modified, Subsequent Default [Line Items]
Loans with payment default and modified	25
Commercial Banking | Commercial loans
Financing Receivable, Modified, Subsequent Default [Line Items]
Loans with payment default and modified	$ 25

Loans Receivable - Loan Delinqu

Loans Receivable - Loan Delinquencies (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Loan payment delinquencies
Total loans receivable	$ 11,354,364	$ 11,414,809
90 days or greater delinquent and accruing	2,511	2,698
Total delinquency
Loan payment delinquencies
Total loans receivable	68,298	93,270
30-59 days delinquent
Loan payment delinquencies
Total loans receivable	23,435	54,413
60-89 days delinquent
Loan payment delinquencies
Total loans receivable	24,373	14,266
90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	20,490	24,591
Current
Loan payment delinquencies
Total loans receivable	11,286,066	11,321,539
Personal Banking
Loan payment delinquencies
Total loans receivable	6,584,612	6,782,070
90 days or greater delinquent and accruing	2,002	2,463
Personal Banking | Total delinquency
Loan payment delinquencies
Total loans receivable	38,316	74,644
Personal Banking | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	14,759	47,013
Personal Banking | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	12,486	12,532
Personal Banking | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	11,071	15,099
Personal Banking | Current
Loan payment delinquencies
Total loans receivable	6,546,296	6,707,426
Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total loans receivable	3,324,068	3,428,185
90 days or greater delinquent and accruing	1,390	1,671
Personal Banking | Residential mortgage loans | Total delinquency
Loan payment delinquencies
Total loans receivable	14,392	45,832
Personal Banking | Residential mortgage loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	616	30,041
Personal Banking | Residential mortgage loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	8,223	7,796
Personal Banking | Residential mortgage loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	5,553	7,995
Personal Banking | Residential mortgage loans | Current
Loan payment delinquencies
Total loans receivable	3,309,676	3,382,353
Personal Banking | Home equity loans
Loan payment delinquencies
Total loans receivable	1,180,486	1,227,858
90 days or greater delinquent and accruing	34	26
Personal Banking | Home equity loans | Total delinquency
Loan payment delinquencies
Total loans receivable	7,342	9,869
Personal Banking | Home equity loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	3,771	5,761
Personal Banking | Home equity loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,065	982
Personal Banking | Home equity loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	2,506	3,126
Personal Banking | Home equity loans | Current
Loan payment delinquencies
Total loans receivable	1,173,144	1,217,989
Personal Banking | Vehicle loans
Loan payment delinquencies
Total loans receivable	1,960,928	2,008,601
90 days or greater delinquent and accruing	8	44
Personal Banking | Vehicle loans | Total delinquency
Loan payment delinquencies
Total loans receivable	14,724	16,759
Personal Banking | Vehicle loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	9,759	10,382
Personal Banking | Vehicle loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	2,774	3,326
Personal Banking | Vehicle loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	2,191	3,051
Personal Banking | Vehicle loans | Current
Loan payment delinquencies
Total loans receivable	1,946,204	1,991,842
Personal Banking | Consumer loans
Loan payment delinquencies
Total loans receivable	119,130	117,426
90 days or greater delinquent and accruing	570	722
Personal Banking | Consumer loans | Total delinquency
Loan payment delinquencies
Total loans receivable	1,858	2,184
Personal Banking | Consumer loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	613	829
Personal Banking | Consumer loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	424	428
Personal Banking | Consumer loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	821	927
Personal Banking | Consumer loans | Current
Loan payment delinquencies
Total loans receivable	117,272	115,242
Commercial Banking
Loan payment delinquencies
Total loans receivable	4,769,752	4,632,739
90 days or greater delinquent and accruing	509	235
Commercial Banking | Total delinquency
Loan payment delinquencies
Total loans receivable	29,982	18,626
Commercial Banking | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	8,676	7,400
Commercial Banking | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	11,887	1,734
Commercial Banking | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	9,419	9,492
Commercial Banking | Current
Loan payment delinquencies
Total loans receivable	4,739,770	4,614,113
Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total loans receivable	2,665,016	2,628,457
90 days or greater delinquent and accruing	185	225
Commercial Banking | Commercial real estate loans | Total delinquency
Loan payment delinquencies
Total loans receivable	12,511	9,576
Commercial Banking | Commercial real estate loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	3,893	2,010
Commercial Banking | Commercial real estate loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	2,736	1,031
Commercial Banking | Commercial real estate loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	5,882	6,535
Commercial Banking | Commercial real estate loans | Current
Loan payment delinquencies
Total loans receivable	2,652,505	2,618,881
Commercial Banking | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total loans receivable	362,622	345,553
90 days or greater delinquent and accruing	0	0
Commercial Banking | Commercial real estate loans - owner occupied | Total delinquency
Loan payment delinquencies
Total loans receivable	988	1,371
Commercial Banking | Commercial real estate loans - owner occupied | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	417	1,194
Commercial Banking | Commercial real estate loans - owner occupied | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	419	0
Commercial Banking | Commercial real estate loans - owner occupied | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	152	177
Commercial Banking | Commercial real estate loans - owner occupied | Current
Loan payment delinquencies
Total loans receivable	361,634	344,182
Commercial Banking | Commercial loans
Loan payment delinquencies
Total loans receivable	1,742,114	1,658,729
90 days or greater delinquent and accruing	324	10
Commercial Banking | Commercial loans | Total delinquency
Loan payment delinquencies
Total loans receivable	16,483	7,679
Commercial Banking | Commercial loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	4,366	4,196
Commercial Banking | Commercial loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	8,732	703
Commercial Banking | Commercial loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	3,385	2,780
Commercial Banking | Commercial loans | Current
Loan payment delinquencies
Total loans receivable	$ 1,725,631	$ 1,651,050

Loans Receivable - Credit Quali

Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Credit quality indicators
Year one	$ 873,647		$ 873,647		$ 1,684,565
Year two	1,548,796		1,548,796		2,448,570
Year three	2,191,860		2,191,860		1,785,396
Year four	1,629,889		1,629,889		1,190,115
Year five	1,088,571		1,088,571		762,754
Prior	2,839,666		2,839,666		2,364,506
Revolving loans	1,101,343		1,101,343		1,099,359
Revolving loans converted to term loans	80,592		80,592		79,544
Total loans receivable, gross	11,354,364		11,354,364		11,414,809
Total loans receivable, charge-offs	(4,869)	$ (5,244)	(11,528)	$ (9,871)
Revolving loans converted to term loans during the period			10,000		19,000
Special mention and substandard | Minimum
Credit quality indicators
Total loans receivable, gross	1,000		1,000
Personal Banking
Credit quality indicators
Year one	397,207		397,207		947,432
Year two	839,788		839,788		1,463,153
Year three	1,308,781		1,308,781		1,303,418
Year four	1,181,295		1,181,295		788,790
Year five	720,919		720,919		408,938
Prior	1,558,565		1,558,565		1,294,629
Revolving loans	531,194		531,194		530,255
Revolving loans converted to term loans	46,863		46,863		45,455
Total loans receivable, gross	6,584,612		6,584,612		6,782,070
Total loans receivable, charge-offs	(3,050)	(3,552)	(8,197)	(6,657)
Personal Banking | Residential mortgage loans
Credit quality indicators
Year one	16,707		16,707		186,081
Year two	197,517		197,517		666,960
Year three	648,575		648,575		792,488
Year four	771,204		771,204		507,320
Year five	488,847		488,847		244,989
Prior	1,201,218		1,201,218		1,030,347
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	3,324,068		3,324,068		3,428,185
Year one, charge-offs			0		0
Year two, charge-offs			0		(9)
Year three, charge-offs			(250)		(5)
Year four, charge-offs			0		(130)
Year five, charge-offs			(114)		(23)
Prior, charge-offs			(50)		(1,023)
Revolving loans, charge-offs			0		0
Revolving loans converted to term loans, charge-offs			0		0
Total loans receivable, charge-offs	(252)	(545)	(414)	(752)	(1,189)
Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Year one	16,707		16,707		186,081
Year two	197,466		197,466		665,379
Year three	646,931		646,931		792,488
Year four	770,828		770,828		506,068
Year five	488,009		488,009		244,678
Prior	1,192,427		1,192,427		1,019,152
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	3,312,368		3,312,368		3,413,846
Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Year one	0		0		0
Year two	51		51		1,581
Year three	1,644		1,644		0
Year four	376		376		1,252
Year five	838		838		311
Prior	8,791		8,791		11,195
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	11,700		11,700		14,339
Personal Banking | Home equity loans
Credit quality indicators
Year one	12,105		12,105		71,497
Year two	64,074		64,074		100,875
Year three	94,022		94,022		106,097
Year four	97,430		97,430		146,318
Year five	135,479		135,479		94,179
Prior	264,411		264,411		198,992
Revolving loans	466,893		466,893		465,315
Revolving loans converted to term loans	46,072		46,072		44,585
Total loans receivable, gross	1,180,486		1,180,486		1,227,858
Year one, charge-offs			0		0
Year two, charge-offs			0		(53)
Year three, charge-offs			(40)		(46)
Year four, charge-offs			(2)		0
Year five, charge-offs			0		(48)
Prior, charge-offs			(320)		(352)
Revolving loans, charge-offs			(228)		(144)
Revolving loans converted to term loans, charge-offs			(59)		(209)
Total loans receivable, charge-offs	(237)	(235)	(649)	(399)	(852)
Personal Banking | Home equity loans | Pass
Credit quality indicators
Year one	12,105		12,105		71,497
Year two	64,074		64,074		100,639
Year three	93,892		93,892		106,043
Year four	97,376		97,376		146,121
Year five	135,246		135,246		94,144
Prior	263,136		263,136		197,259
Revolving loans	465,532		465,532		463,868
Revolving loans converted to term loans	44,826		44,826		43,526
Total loans receivable, gross	1,176,187		1,176,187		1,223,097
Personal Banking | Home equity loans | Substandard
Credit quality indicators
Year one	0		0		0
Year two	0		0		236
Year three	130		130		54
Year four	54		54		197
Year five	233		233		35
Prior	1,275		1,275		1,733
Revolving loans	1,361		1,361		1,447
Revolving loans converted to term loans	1,246		1,246		1,059
Total loans receivable, gross	4,299		4,299		4,761
Personal Banking | Vehicle loans
Credit quality indicators
Year one	352,673		352,673		665,522
Year two	559,024		559,024		683,693
Year three	557,497		557,497		399,262
Year four	308,674		308,674		133,074
Year five	95,265		95,265		68,409
Prior	87,795		87,795		58,641
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	1,960,928		1,960,928		2,008,601
Year one, charge-offs			(61)		(678)
Year two, charge-offs			(1,153)		(1,844)
Year three, charge-offs			(1,261)		(1,967)
Year four, charge-offs			(1,207)		(475)
Year five, charge-offs			(213)		(652)
Prior, charge-offs			(619)		(853)
Revolving loans, charge-offs			0		0
Revolving loans converted to term loans, charge-offs			0		0
Total loans receivable, charge-offs	(1,926)	(1,539)	(4,514)	(3,207)	(6,468)
Personal Banking | Vehicle loans | Pass
Credit quality indicators
Year one	352,639		352,639		664,876
Year two	558,240		558,240		682,275
Year three	556,097		556,097		397,809
Year four	307,322		307,322		132,775
Year five	95,012		95,012		67,853
Prior	87,268		87,268		58,153
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	1,956,578		1,956,578		2,003,741
Personal Banking | Vehicle loans | Substandard
Credit quality indicators
Year one	34		34		646
Year two	784		784		1,418
Year three	1,400		1,400		1,453
Year four	1,352		1,352		299
Year five	253		253		556
Prior	527		527		488
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	4,350		4,350		4,860
Personal Banking | Consumer loans
Credit quality indicators
Year one	15,722		15,722		24,332
Year two	19,173		19,173		11,625
Year three	8,687		8,687		5,571
Year four	3,987		3,987		2,078
Year five	1,328		1,328		1,361
Prior	5,141		5,141		6,649
Revolving loans	64,301		64,301		64,940
Revolving loans converted to term loans	791		791		870
Total loans receivable, gross	119,130		119,130		117,426
Year one, charge-offs			202
Year one, charge-offs					(3,412)
Year two, charge-offs			(1,444)		(511)
Year three, charge-offs			(325)		(390)
Year four, charge-offs			(162)		(157)
Year five, charge-offs			(27)		(177)
Prior, charge-offs			(508)		(980)
Revolving loans, charge-offs			(333)		(317)
Revolving loans converted to term loans, charge-offs			(23)		(38)
Total loans receivable, charge-offs	(635)	(1,233)	(2,620)	(2,299)	(5,983)
Personal Banking | Consumer loans | Pass
Credit quality indicators
Year one	15,714		15,714		24,277
Year two	19,085		19,085		11,582
Year three	8,647		8,647		5,552
Year four	3,966		3,966		2,072
Year five	1,328		1,328		1,355
Prior	5,123		5,123		6,603
Revolving loans	63,732		63,732		64,214
Revolving loans converted to term loans	696		696		820
Total loans receivable, gross	118,291		118,291		116,475
Personal Banking | Consumer loans | Substandard
Credit quality indicators
Year one	8		8		55
Year two	88		88		43
Year three	40		40		19
Year four	21		21		6
Year five	0		0		6
Prior	18		18		46
Revolving loans	569		569		726
Revolving loans converted to term loans	95		95		50
Total loans receivable, gross	839		839		951
Commercial Banking
Credit quality indicators
Year one	476,440		476,440		737,133
Year two	709,008		709,008		985,417
Year three	883,079		883,079		481,978
Year four	448,594		448,594		401,325
Year five	367,652		367,652		353,816
Prior	1,281,101		1,281,101		1,069,877
Revolving loans	570,149		570,149		569,104
Revolving loans converted to term loans	33,729		33,729		34,089
Total loans receivable, gross	4,769,752		4,769,752		4,632,739
Total loans receivable, charge-offs	(1,819)	(1,692)	(3,331)	(3,214)
Commercial Banking | Commercial real estate loans
Credit quality indicators
Year one	98,605		98,605		228,074
Year two	243,383		243,383		496,247
Year three	537,441		537,441		358,594
Year four	363,696		363,696		356,152
Year five	334,609		334,609		269,479
Prior	1,035,769		1,035,769		866,626
Revolving loans	27,335		27,335		28,373
Revolving loans converted to term loans	24,178		24,178		24,912
Total loans receivable, gross	2,665,016		2,665,016		2,628,457
Year one, charge-offs			0		(14)
Year two, charge-offs			0		0
Year three, charge-offs			(44)		(492)
Year four, charge-offs			(360)		0
Year five, charge-offs			0		(51)
Prior, charge-offs			(445)		(1,741)
Revolving loans, charge-offs			0		0
Revolving loans converted to term loans, charge-offs			0		0
Total loans receivable, charge-offs	(500)	(415)	(849)	(1,072)	(2,298)
Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Year one	97,120		97,120		223,335
Year two	236,451		236,451		470,762
Year three	509,501		509,501		303,873
Year four	269,475		269,475		332,620
Year five	300,353		300,353		228,382
Prior	906,187		906,187		745,244
Revolving loans	26,428		26,428		27,583
Revolving loans converted to term loans	24,099		24,099		24,804
Total loans receivable, gross	2,369,614		2,369,614		2,356,603
Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
Year one	0		0		2,819
Year two	3,311		3,311		24,735
Year three	25,879		25,879		27,871
Year four	39,250		39,250		5,365
Year five	15,583		15,583		4,053
Prior	17,823		17,823		38,665
Revolving loans	805		805		711
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	102,651		102,651		104,219
Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
Year one	1,485		1,485		1,920
Year two	3,621		3,621		750
Year three	2,061		2,061		26,850
Year four	54,971		54,971		18,167
Year five	18,673		18,673		37,044
Prior	111,759		111,759		82,717
Revolving loans	102		102		79
Revolving loans converted to term loans	79		79		108
Total loans receivable, gross	192,751		192,751		167,635
Commercial Banking | Commercial real estate loans - owner occupied
Credit quality indicators
Year one	47,702		47,702		25,946
Year two	27,091		27,091		52,106
Year three	37,878		37,878		48,991
Year four	47,952		47,952		17,650
Year five	16,971		16,971		47,646
Prior	178,679		178,679		147,768
Revolving loans	3,397		3,397		2,378
Revolving loans converted to term loans	2,952		2,952		3,068
Total loans receivable, gross	362,622		362,622		345,553
Year one, charge-offs			0		0
Year two, charge-offs			0		0
Year three, charge-offs			0		0
Year four, charge-offs			0		0
Year five, charge-offs			0		0
Prior, charge-offs			0		(68)
Revolving loans, charge-offs			0		0
Revolving loans converted to term loans, charge-offs			0		0
Total loans receivable, charge-offs	0	(68)	0	(68)	(68)
Commercial Banking | Commercial real estate loans - owner occupied | Pass
Credit quality indicators
Year one	47,702		47,702		24,725
Year two	13,022		13,022		51,986
Year three	34,667		34,667		47,655
Year four	46,645		46,645		15,984
Year five	13,637		13,637		28,614
Prior	152,801		152,801		140,175
Revolving loans	3,397		3,397		2,378
Revolving loans converted to term loans	1,281		1,281		2,390
Total loans receivable, gross	313,152		313,152		313,907
Commercial Banking | Commercial real estate loans - owner occupied | Special mention
Credit quality indicators
Year one	0		0		1,221
Year two	2,200		2,200		120
Year three	3,211		3,211		1,218
Year four	1,307		1,307		0
Year five	0		0		14,386
Prior	21,510		21,510		2,952
Revolving loans	0		0		0
Revolving loans converted to term loans	0		0		0
Total loans receivable, gross	28,228		28,228		19,897
Commercial Banking | Commercial real estate loans - owner occupied | Substandard
Credit quality indicators
Year one	0		0		0
Year two	11,869		11,869		0
Year three	0		0		118
Year four	0		0		1,666
Year five	3,334		3,334		4,646
Prior	4,368		4,368		4,641
Revolving loans	0		0		0
Revolving loans converted to term loans	1,671		1,671		678
Total loans receivable, gross	21,242		21,242		11,749
Commercial Banking | Commercial loans
Credit quality indicators
Year one	330,133		330,133		483,113
Year two	438,534		438,534		437,064
Year three	307,760		307,760		74,393
Year four	36,946		36,946		27,523
Year five	16,072		16,072		36,691
Prior	66,653		66,653		55,483
Revolving loans	539,417		539,417		538,353
Revolving loans converted to term loans	6,599		6,599		6,109
Total loans receivable, gross	1,742,114		1,742,114		1,658,729
Year one, charge-offs			0		(35)
Year two, charge-offs			(47)		(2,072)
Year three, charge-offs			(1,787)		(517)
Year four, charge-offs			(115)		(430)
Year five, charge-offs			(182)		(205)
Prior, charge-offs			(266)		(845)
Revolving loans, charge-offs			(75)		(60)
Revolving loans converted to term loans, charge-offs			(10)		(2)
Total loans receivable, charge-offs	(1,319)	$ (1,209)	(2,482)	$ (2,074)	(4,166)
Commercial Banking | Commercial loans | Pass
Credit quality indicators
Year one	322,393		322,393		482,605
Year two	402,521		402,521		430,378
Year three	298,891		298,891		73,469
Year four	35,474		35,474		26,868
Year five	15,652		15,652		34,090
Prior	64,712		64,712		54,617
Revolving loans	530,098		530,098		531,742
Revolving loans converted to term loans	3,311		3,311		4,110
Total loans receivable, gross	1,673,052		1,673,052		1,637,879
Commercial Banking | Commercial loans | Special mention
Credit quality indicators
Year one	7,740		7,740		508
Year two	27,814		27,814		3,671
Year three	4,871		4,871		52
Year four	583		583		299
Year five	284		284		240
Prior	166		166		26
Revolving loans	4,788		4,788		1,882
Revolving loans converted to term loans	1,154		1,154		0
Total loans receivable, gross	47,400		47,400		6,678
Commercial Banking | Commercial loans | Substandard
Credit quality indicators
Year one	0		0		0
Year two	8,199		8,199		3,015
Year three	3,998		3,998		872
Year four	889		889		356
Year five	136		136		2,361
Prior	1,775		1,775		840
Revolving loans	4,531		4,531		4,729
Revolving loans converted to term loans	2,134		2,134		1,999
Total loans receivable, gross	$ 21,662		$ 21,662		$ 14,172

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Amortizable intangible assets:
Intangible asset - net	$ 3,954		$ 3,954		$ 5,290
Estimated amortization expense
Amortization expense	635	$ 842	1,336	$ 1,751
For the year ending December 31, 2024	2,452		2,452
For the year ending December 31, 2025	1,662		1,662
For the year ending December 31, 2026	871		871
For the year ending December 31, 2027	305		305
Core Deposits
Amortizable intangible assets:
Intangible asset - gross	74,899		74,899		74,899
Less: accumulated amortization	(70,945)		(70,945)		(69,609)
Intangible asset - net	$ 3,954		$ 3,954		$ 5,290

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 380,997	$ 380,997
Goodwill impairment	$ 0

Borrowed Funds - Schedule of Bo

Borrowed Funds - Schedule of Borrowed Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Borrowed funds	$ 242,363	$ 398,895
Collateralized borrowings, due within one year
Debt Instrument [Line Items]
Borrowed funds	$ 26,213	$ 35,495
Average rate	1.83%	1.72%
Collateral received, due within one year
Debt Instrument [Line Items]
Borrowed funds	$ 41,150	$ 24,900
Average rate	5.17%	5.26%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year
Debt Instrument [Line Items]
Borrowed funds	$ 175,000	$ 175,000
Average rate	5.65%	5.71%
Federal Home Loan Bank of Pittsburgh | Notes payable to the FHLB of Pittsburgh, due within one year
Debt Instrument [Line Items]
Borrowed funds	$ 0	$ 163,500
Average rate	0%	5.70%

Borrowed Funds - Narrative (Det

Borrowed Funds - Narrative (Details)		6 Months Ended
	Sep. 09, 2020 USD ($)	Jun. 30, 2024 USD ($) business_trust advance	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total loans receivable, net		$ 11,229,294,000		$ 11,289,566,000
Borrowed funds		242,363,000		398,895,000
Subordinated debt		$ 114,364,000		114,189,000
Number of statutory business trusts owned | business_trust		7
Trust Preferred Investments
Debt Instrument [Line Items]
Interest paid, net		$ 5,000,000	$ 4,000,000
Maximum period for which interest payment on the subordinated debentures can be deferred (in years)		5 years
Interest deferral		$ 0
Collateralized borrowings, due within one year
Debt Instrument [Line Items]
Borrowed funds		26,213,000		35,495,000
Cash and securities collateral		36,000,000
Collateral received, due within one year
Debt Instrument [Line Items]
Borrowed funds		41,150,000		24,900,000
Subordinated debt
Debt Instrument [Line Items]
Debt issued	$ 125,000,000
Stated rate (as a percent)	4%
Interest rate	3.89%
Repurchase amount				10,000,000
Amount outstanding after repurchase				115,000,000
Debt issuance costs	$ 2,000,000
Debt issuance amortization period (in years)	5 years
Interest paid, net		$ 2,000,000	$ 2,000,000
Federal Home Loan Bank of Pittsburgh
Debt Instrument [Line Items]
Number of advances | advance		7
Federal Home Loan Bank of Pittsburgh | Revolving line of credit, FHLB of Pittsburgh
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 250,000,000
Revolving line of credit		0		164,000,000
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year
Debt Instrument [Line Items]
Borrowed funds		175,000,000		$ 175,000,000
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.66%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.68%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Three
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.66%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Four
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.65%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Five
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.65%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Six
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.65%
Federal Home Loan Bank of Pittsburgh | Term notes payable to the FHLB of Pittsburgh, due within one year | Debt Instrument, Redemption, Period Seven
Debt Instrument [Line Items]
Debt issued		$ 25,000,000
Stated rate (as a percent)		5.65%
Federal Home Loan Bank of Pittsburgh | Residential First Mortgage and Other Loans
Debt Instrument [Line Items]
Total loans receivable, net		$ 6,000,000,000

Borrowed Funds - Capital Debt S

Borrowed Funds - Capital Debt Securities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Junior subordinated debentures	$ 129,703	$ 129,574
Trust Preferred Investments
Debt Instrument [Line Items]
Capital debt securities	128,875
Junior subordinated debentures	$ 129,703	129,574
Trust Preferred Investments | Northwest Bancorp Capital Trust III
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.38%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547	51,547
Trust Preferred Investments | Northwest Bancorp Statutory Trust IV
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.38%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547	51,547
Trust Preferred Investments | LNB Trust II
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.48%
Capital debt securities	$ 7,875
Junior subordinated debentures	$ 8,119	8,119
Trust Preferred Investments | Union National Capital Trust I
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.85%
Capital debt securities	$ 8,000
Junior subordinated debentures	$ 8,012	7,999
Trust Preferred Investments | Union National Capital Trust II
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2%
Capital debt securities	$ 3,000
Junior subordinated debentures	$ 2,809	2,796
Trust Preferred Investments | MFBC Statutory Trust I
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.70%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,840	3,788
Trust Preferred Investments | Universal Preferred Trust
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.69%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,829	$ 3,778

Guarantees (Details)

Guarantees (Details) $ in Millions	Jun. 30, 2024 USD ($)
Private Label Credit Card Facilities
Guarantor Obligations [Line Items]
Credit limit	$ 10
Private Label Credit Card Facilities | Credit Cards Issued
Guarantor Obligations [Line Items]
Credit limit	10
Outstanding balance	2
Standby Letters of Credit
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	59
Maximum exposure collateralized	43
Liability recognized for the obligations	$ 1

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income - treasury stock method - Basic and Diluted	$ 4,747	$ 33,044	$ 33,910	$ 66,723
Less: Dividends and undistributed earnings allocated to participating securities	7	86	47	174
Net income available to common shareholders - two class method - Basic and Diluted	4,740	32,958	33,863	66,549
Net income available to common shareholders - two class method - Basic and Diluted	$ 4,740	$ 32,958	$ 33,863	$ 66,549
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Basic earnings per share (in dollars per share)	$ 0.04	$ 0.26	$ 0.27	$ 0.53
Diluted earnings per share (in dollars per share)	$ 0.04	$ 0.26	$ 0.27	$ 0.52
Anti-dilutive awards (in shares)	2,451	2,902	2,451	2,902
Earnings Per Share, Treasury Stock Method
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted average common shares outstanding, basic (in shares)	127,023,522	126,620,383	126,918,878	126,559,784
Add: Shares adjustment (in shares)	137,853	118,907	426,501	367,074
Total weighted average common shares, diluted (in shares)	127,161,375	126,739,290	127,345,379	126,926,858
Earnings Per Share, Two-Class Method
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted average common shares outstanding, basic (in shares)	127,023,522	126,620,383	126,918,878	126,559,784
Add: Shares adjustment (in shares)	175,517	331,088	175,517	331,088
Total weighted average common shares, diluted (in shares)	127,199,039	126,951,471	127,094,395	126,890,872

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pension benefits
Components of net periodic benefit cost
Service cost	$ 1,425	$ 1,560	$ 2,850	$ 3,120
Interest cost	2,205	2,245	4,410	4,490
Expected return on plan assets	(3,776)	(3,479)	(7,552)	(6,958)
Amortization of prior service cost	(563)	(564)	(1,126)	(1,128)
Amortization of the net loss	18	20	36	40
Net periodic cost	(691)	(218)	(1,382)	(436)
Other post-retirement benefits
Components of net periodic benefit cost
Service cost	0	0	0	0
Interest cost	15	7	30	14
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of the net loss	10	10	20	20
Net periodic cost	$ 25	$ 17	$ 50	$ 34

Disclosures About Fair Value _3

Disclosures About Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Significant unrealized appreciation or depreciation in financial instruments	$ 0	$ 0

Disclosures About Fair Value _4

Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financial assets:
Securities held-to-maturity	$ 663,292	$ 699,506
Accrued interest receivable	48,739	47,353
Financial liabilities:
Subordinated debt	114,364	114,189
Junior subordinated debentures	129,703	129,574
Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	48,009	42,772
Financial liabilities:
Derivative liabilities	44,581	42,940
Level 1
Financial assets:
Cash and cash equivalents	228,433	122,260
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	0	0
Loans held-for-sale	0	0
Accrued interest receivable	48,739	47,353
FHLB stock	0	0
Total financial assets	277,172	169,613
Financial liabilities:
Savings and checking deposits	9,261,017	9,377,021
Time deposits	0	0
Borrowed funds	232,254	386,446
Subordinated debt	0	0
Junior subordinated debentures	0	0
Accrued interest payable	21,423	13,669
Total financial liabilities	9,514,694	9,777,136
Level 1 | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Level 1 | Forward commitments
Financial assets:
Derivative assets	0	0
Level 1 | Foreign exchange swaps
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities	0	0
Level 1 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities		0
Level 1 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Level 1 | Risk participation agreements
Financial liabilities:
Derivative liabilities	0	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	1,029,191	1,043,359
Securities held-to-maturity	663,292	699,506
Loans receivable, net	0	0
Loans held-for-sale	681	0
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	1,740,382	1,784,996
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	0	0
Borrowed funds	0	0
Subordinated debt	109,224	109,471
Junior subordinated debentures	0	0
Accrued interest payable	0	0
Total financial liabilities	153,805	152,411
Level 2 | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Level 2 | Forward commitments
Financial assets:
Derivative assets	70	12
Level 2 | Foreign exchange swaps
Financial assets:
Derivative assets	2
Financial liabilities:
Derivative liabilities	25	291
Level 2 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Financial assets:
Derivative assets	2,726	713
Financial liabilities:
Derivative liabilities		1,198
Level 2 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	44,420	41,406
Financial liabilities:
Derivative liabilities	44,450	41,437
Level 2 | Risk participation agreements
Financial liabilities:
Derivative liabilities	106	14
Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	10,270,432	10,274,593
Loans held-for-sale	8,764	8,768
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	10,279,987	10,284,002
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	2,472,360	2,113,177
Borrowed funds	0	0
Subordinated debt	0	0
Junior subordinated debentures	124,292	112,159
Accrued interest payable	0	0
Total financial liabilities	2,596,652	2,225,336
Level 3 | Interest rate lock commitments
Financial assets:
Derivative assets	791	641
Level 3 | Forward commitments
Financial assets:
Derivative assets	0	0
Level 3 | Foreign exchange swaps
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities	0	0
Level 3 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities		0
Level 3 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Level 3 | Risk participation agreements
Financial liabilities:
Derivative liabilities	0	0
Carrying amount
Financial assets:
Cash and cash equivalents	228,433	122,260
Securities available-for-sale	1,029,191	1,043,359
Securities held-to-maturity	784,208	814,839
Loans receivable, net	11,219,849	11,280,798
Loans held-for-sale	9,445	8,768
Accrued interest receivable	48,739	47,353
FHLB stock	20,842	30,146
Total financial assets	13,388,716	13,390,295
Financial liabilities:
Savings and checking deposits	9,261,017	9,377,021
Time deposits	2,826,362	2,602,881
Borrowed funds	242,363	398,895
Subordinated debt	114,364	114,189
Junior subordinated debentures	129,703	129,574
Accrued interest payable	21,423	13,669
Total financial liabilities	12,639,813	12,679,169
Carrying amount | Interest rate lock commitments
Financial assets:
Derivative assets	791	641
Carrying amount | Forward commitments
Financial assets:
Derivative assets	70	12
Carrying amount | Foreign exchange swaps
Financial assets:
Derivative assets	2
Financial liabilities:
Derivative liabilities	25	291
Carrying amount | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Financial assets:
Derivative assets	2,726	713
Financial liabilities:
Derivative liabilities		1,198
Carrying amount | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	44,420	41,406
Financial liabilities:
Derivative liabilities	44,450	41,437
Carrying amount | Risk participation agreements
Financial liabilities:
Derivative liabilities	106	14
Estimated fair value
Financial assets:
Cash and cash equivalents	228,433	122,260
Securities available-for-sale	1,029,191	1,043,359
Securities held-to-maturity	663,292	699,506
Loans receivable, net	10,270,432	10,274,593
Loans held-for-sale	9,445	8,768
Accrued interest receivable	48,739	47,353
FHLB stock	20,842	30,146
Total financial assets	12,318,383	12,268,757
Financial liabilities:
Savings and checking deposits	9,261,017	9,377,021
Time deposits	2,472,360	2,113,177
Borrowed funds	232,254	386,446
Subordinated debt	109,224	109,471
Junior subordinated debentures	124,292	112,159
Accrued interest payable	21,423	13,669
Total financial liabilities	12,265,151	12,154,883
Estimated fair value | Interest rate lock commitments
Financial assets:
Derivative assets	791	641
Estimated fair value | Forward commitments
Financial assets:
Derivative assets	70	12
Estimated fair value | Foreign exchange swaps
Financial assets:
Derivative assets	2
Financial liabilities:
Derivative liabilities	25	291
Estimated fair value | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Financial assets:
Derivative assets	2,726	713
Financial liabilities:
Derivative liabilities		1,198
Estimated fair value | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Financial assets:
Derivative assets	44,420	41,406
Financial liabilities:
Derivative liabilities	44,450	41,437
Estimated fair value | Risk participation agreements
Financial liabilities:
Derivative liabilities	$ 106	$ 14

Disclosures About Fair Value _5

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	$ 48,009	$ 42,772
Derivative liabilities	44,581	42,940
Level 1
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Total financial assets	277,172	169,613
Level 1 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Level 1 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Level 1 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0	0
Level 1 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities		0
Level 1 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities	0	0
Level 1 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Level 2
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	1,029,191	1,043,359
Total financial assets	1,740,382	1,784,996
Level 2 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Level 2 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	70	12
Level 2 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2
Derivative liabilities	25	291
Level 2 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2,726	713
Derivative liabilities		1,198
Level 2 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	44,420	41,406
Derivative liabilities	44,450	41,437
Level 2 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	106	14
Level 3
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Total financial assets	10,279,987	10,284,002
Level 3 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	791	641
Level 3 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Level 3 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0	0
Level 3 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities		0
Level 3 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities	0	0
Level 3 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Recurring
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	112,649	182,068
Total mortgage-backed securities	916,542	861,291
Total financial assets	1,077,200	1,086,131
Total liabilities	44,581	42,940
Recurring | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	36,971	58,314
Recurring | Government-sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	180	40,597
Recurring | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	58,741	75,469
Recurring | Corporate
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	16,757	7,688
Recurring | Mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	56,127	17,441
Recurring | Mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	64,816	102,678
Recurring | Mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	95,220	70,830
Recurring | Mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	5	5
Recurring | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	489,211	331,784
Recurring | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	77,941	148,892
Recurring | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	133,222	189,661
Recurring | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	791	641
Recurring | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	70	12
Recurring | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2
Derivative liabilities	25	291
Recurring | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2,726	713
Derivative liabilities		1,198
Recurring | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	44,420	41,406
Derivative liabilities	44,450	41,437
Recurring | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	106	14
Recurring | Level 1
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Total mortgage-backed securities	0	0
Total financial assets	0	0
Total liabilities	0	0
Recurring | Level 1 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 1 | Government-sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 1 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 1 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 1 | Mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 1 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Recurring | Level 1 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Recurring | Level 1 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0	0
Recurring | Level 1 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities		0
Recurring | Level 1 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Level 1 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Recurring | Level 2
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	112,649	182,068
Total mortgage-backed securities	916,542	861,291
Total financial assets	1,076,409	1,085,490
Total liabilities	44,581	42,940
Recurring | Level 2 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	36,971	58,314
Recurring | Level 2 | Government-sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	180	40,597
Recurring | Level 2 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	58,741	75,469
Recurring | Level 2 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	16,757	7,688
Recurring | Level 2 | Mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	56,127	17,441
Recurring | Level 2 | Mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	64,816	102,678
Recurring | Level 2 | Mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	95,220	70,830
Recurring | Level 2 | Mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	5	5
Recurring | Level 2 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	489,211	331,784
Recurring | Level 2 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	77,941	148,892
Recurring | Level 2 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	133,222	189,661
Recurring | Level 2 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Recurring | Level 2 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	70	12
Recurring | Level 2 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2
Derivative liabilities	25	291
Recurring | Level 2 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	2,726	713
Derivative liabilities		1,198
Recurring | Level 2 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	44,420	41,406
Derivative liabilities	44,450	41,437
Recurring | Level 2 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	106	14
Recurring | Level 3
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Total mortgage-backed securities	0	0
Total financial assets	791	641
Total liabilities	0	0
Recurring | Level 3 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 3 | Government-sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 3 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 3 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Total debt securities	0	0
Recurring | Level 3 | Mortgage-backed securities | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Mortgage-backed securities | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Mortgage-backed securities | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Mortgage-backed securities | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Collateralized mortgage obligations | GNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Collateralized mortgage obligations | FNMA
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Collateralized mortgage obligations | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Total mortgage-backed securities	0	0
Recurring | Level 3 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	791	641
Recurring | Level 3 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Recurring | Level 3 | Foreign exchange swaps
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0	0
Recurring | Level 3 | Interest rate swap agreements | Derivatives Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities		0
Recurring | Level 3 | Interest rate swap agreements | Derivatives Not Designated as Hedging Instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Level 3 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	$ 0	$ 0

Disclosures About Fair Value _6

Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance,	$ 479	$ 386	$ 641	$ 559
Interest rate lock commitments:
Net activity	312	375	150	202
Ending balance	$ 791	$ 761	$ 791	$ 761

Disclosures About Fair Value _7

Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 0	$ 0
Total assets	277,172	169,613
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Total assets	1,740,382	1,784,996
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	10,270,432	10,274,593
Total assets	10,279,987	10,284,002
Nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	19	133
Real estate owned, net	74	104
Total assets	41,932	36,984
Nonrecurring | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	41,839	36,747
Nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0	0
Real estate owned, net	0	0
Total assets	0	0
Nonrecurring | Level 1 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0	0
Real estate owned, net	0	0
Total assets	0	0
Nonrecurring | Level 2 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	19	133
Real estate owned, net	74	104
Total assets	41,932	36,984
Nonrecurring | Level 3 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 41,839	$ 36,747

Disclosures About Fair Value _8

Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights	$ 19,000	$ 133,000
Real estate owned, net	$ 74,000	104,000
Nonrecurring | Estimated cost to sell | Appraisal Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Real estate owned, net, measurement input	0.10
Nonrecurring | Annual service cost | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	89
Nonrecurring | Prepayment rate | Discounted Cash Flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.065
Nonrecurring | Prepayment rate | Discounted Cash Flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.165
Nonrecurring | Prepayment rate | Discounted Cash Flow | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.101
Nonrecurring | Expected life (months) | Discounted Cash Flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	52.7
Nonrecurring | Expected life (months) | Discounted Cash Flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	102.5
Nonrecurring | Expected life (months) | Discounted Cash Flow | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	74
Nonrecurring | Option adjusted spread | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0727
Nonrecurring | Forward yield curve | Discounted Cash Flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0544
Nonrecurring | Forward yield curve | Discounted Cash Flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0545
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held for sale	$ 8,764,000
Recurring | Estimated pull-through rate | Quoted prices for similar loans in active markets adjusted by an expected pull-through rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held for sale, measurement input	1
Loans individually assessed | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed	$ 41,839,000	$ 36,747,000
Loans individually assessed | Nonrecurring | Estimated cost to sell | Appraisal Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed, measurement input	0.10

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - Interest rate swap agreements - Derivatives Designated as Hedging Instruments $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) derivative	Jun. 30, 2024 USD ($)
Derivative [Line Items]
Number of derivatives | derivative	7
Derivative, notional amount | $	$ 175,000	$ 175,000
Minimum
Derivative [Line Items]
Derivative contract maturities (in years)	3 years
Maximum
Derivative [Line Items]
Derivative contract maturities (in years)	5 years

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Derivatives Designated as Hedging Instruments | Interest rate swap agreements
Derivative [Line Items]
Asset derivatives, notional amount	$ 175,000	$ 75,000
Asset derivatives, fair value	2,726	713
Liability derivatives, notional amount	0	100,000
Liability derivatives, fair value	0	1,198
Derivatives Not Designated as Hedging Instruments
Derivative [Line Items]
Asset derivatives, notional amount	952,805	822,277
Asset derivatives, fair value	48,009	42,772
Liability derivatives, notional amount	865,299	939,144
Liability derivatives, fair value	44,581	42,940
Derivatives Not Designated as Hedging Instruments | Interest rate swap agreements
Derivative [Line Items]
Asset derivatives, notional amount	743,036	725,139
Asset derivatives, fair value	44,420	41,406
Liability derivatives, notional amount	743,036	725,139
Liability derivatives, fair value	44,450	41,437
Derivatives Not Designated as Hedging Instruments | Foreign exchange swaps
Derivative [Line Items]
Asset derivatives, notional amount	2,824	0
Asset derivatives, fair value	2	0
Liability derivatives, notional amount	5,790	12,278
Liability derivatives, fair value	25	291
Derivatives Not Designated as Hedging Instruments | Interest rate lock commitments
Derivative [Line Items]
Asset derivatives, notional amount	29,284	21,857
Asset derivatives, fair value	791	641
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Derivatives Not Designated as Hedging Instruments | Forward commitments
Derivative [Line Items]
Asset derivatives, notional amount	2,661	281
Asset derivatives, fair value	70	12
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Derivatives Not Designated as Hedging Instruments | Risk participation agreements
Derivative [Line Items]
Asset derivatives, notional amount	0	0
Asset derivatives, fair value	0	0
Liability derivatives, notional amount	116,473	101,727
Liability derivatives, fair value	$ 106	$ 14

Derivative Financial Instrume_5

Derivative Financial Instruments - Gain (Loss) on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Hedging derivatives:
Decrease in interest expense	$ 734	$ 203	$ 1,467	$ 203
(Decrease)/increase in other income
Non-hedging swap derivatives:
(Decrease)/increase in other income	(112)	(128)	175	(330)
Increase in mortgage banking income
Non-hedging swap derivatives:
(Decrease)/increase in other income	$ 323	$ 349	$ 208	$ 176

Derivative Financial Instrume_6

Derivative Financial Instruments - Key Characteristics of Interest Rate Derivative Transactions (Details) - Derivatives Designated as Hedging Instruments - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Interest rate swap agreements
Derivative [Line Items]
Notional amount	$ 175,000	$ 175,000
Estimated decrease to interest expense in the next twelve months	(2,964)
Issued May 11, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	3.50%
Estimated decrease to interest expense in the next twelve months	$ (543)
Remaining term (in months)	34 months
Issued May 12, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	3.54%
Estimated decrease to interest expense in the next twelve months	$ (532)
Remaining term (in months)	46 months
Issued May 19, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	3.83%
Estimated decrease to interest expense in the next twelve months	$ (458)
Remaining term (in months)	41 months
Issued May 31, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	4.05%
Estimated decrease to interest expense in the next twelve months	$ (404)
Remaining term (in months)	29 months
Issued July 26, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	4.24%
Estimated decrease to interest expense in the next twelve months	$ (356)
Remaining term (in months)	49 months
Issued July 31, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	4.35%
Estimated decrease to interest expense in the next twelve months	$ (334)
Remaining term (in months)	43 months
Issued August 9, 2023
Derivative [Line Items]
Notional amount	$ 25,000
Effective rate	4.32%
Estimated decrease to interest expense in the next twelve months	$ (337)
Remaining term (in months)	37 months

Changes in Accumulated Other _3

Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Changes in accumulated other comprehensive income by component
Beginning balance	$ 1,552,449	$ 1,513,275	$ 1,551,317	$ 1,491,486
Other comprehensive (loss)/income before reclassification adjustments	(3,061)	(15,982)	(6,605)	(2,965)
Amounts reclassified from accumulated other comprehensive income	26,401	5,254	26,013	4,872
Other comprehensive income/(loss)	23,340	(10,728)	19,408	1,907
Ending balance	1,556,598	1,511,501	1,556,598	1,511,501
Unrealized holding losses, tax	168	3,771	1,926	463
Reclassification adjustment for gains or losses on securities available-for-sale, tax	(7,706)	(1,731)	(7,706)	(1,731)
Unrealized holding losses on interest rate swaps, tax	(96)	(508)	(726)	(508)
Reclassification adjustment for gains or losses on defined benefit pension plan, tax	147	152	294	304
Total
Changes in accumulated other comprehensive income by component
Beginning balance	(153,424)	(158,523)	(149,492)	(171,158)
Other comprehensive income/(loss)	23,340	(10,728)	19,408	1,907
Ending balance	(130,084)	(169,251)	(130,084)	(169,251)
Unrealized  losses on securities  available-for-sale
Changes in accumulated other comprehensive income by component
Beginning balance	(156,357)	(151,189)	(150,659)	(164,206)
Other comprehensive (loss)/income before reclassification adjustments	(3,391)	(17,719)	(9,089)	(4,702)
Amounts reclassified from accumulated other comprehensive income	26,789	5,636	26,789	5,636
Other comprehensive income/(loss)	23,398	(12,083)	17,700	934
Ending balance	(132,959)	(163,272)	(132,959)	(163,272)
Change in  fair value  of interest  rate swaps
Changes in accumulated other comprehensive income by component
Beginning balance	1,780	0	(374)	0
Other comprehensive (loss)/income before reclassification adjustments	330	1,737	2,484	1,737
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive income/(loss)	330	1,737	2,484	1,737
Ending balance	2,110	1,737	2,110	1,737
Change in  defined benefit  pension plans
Changes in accumulated other comprehensive income by component
Beginning balance	1,153	(7,334)	1,541	(6,952)
Other comprehensive (loss)/income before reclassification adjustments	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	(388)	(382)	(776)	(764)
Other comprehensive income/(loss)	(388)	(382)	(776)	(764)
Ending balance	$ 765	$ (7,716)	$ 765	$ (7,716)

Uncategorized Items - nwbi-2024

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2022-02 [Member]