Northwest Bancshares (NWBI) 10-K 25 Feb 22 2021 FY Annual report Financial data

Cover

Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Feb. 22, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
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, 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
Title of 12(b) Security	Common Stock, $0.01 Par Value
Trading Symbol	NWBI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		126,672,903
Entity Public Float			$ 1,745
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Proxy Statement for the 2022 Annual Meeting of Stockholders of the Registrant (Part III).
Entity Central Index Key	0001471265
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	KPMG LLP
Auditor Location	Pittsburgh, PA
Auditor Firm ID	185

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 1,279,259	$ 736,277
Marketable securities available-for-sale (amortized cost of $1,565,002 and $1,375,685, respectively)	1,548,592	1,398,941
Marketable securities held-to-maturity (fair value of $751,513 and $179,666, respectively)	768,154	178,887
Total cash and cash equivalents and marketable securities	3,596,005	2,314,105
Loans held-for-sale	25,056	58,786
Loans held for investment	9,991,336	10,522,063
Allowance for credit losses	(102,241)	(134,427)
Loans receivable, net	9,914,151	10,446,422
FHLB stock, at cost	14,184	21,748
Accrued interest receivable	25,599	35,554
Real estate owned, net	873	2,232
Premises and equipment, net	156,524	161,538
Bank-owned life insurance	256,213	253,951
Goodwill	380,997	382,279
Other intangible assets, net	12,836	19,936
Other assets	144,126	168,503
Total assets	14,501,508	13,806,268
Liabilities:
Deposits	12,301,165	11,599,233
Borrowed funds	139,093	159,715
Subordinated debt	123,575	123,329
Junior subordinated debentures	129,054	128,794
Advances by borrowers for taxes and insurance	44,582	45,230
Accrued interest payable	1,804	2,054
Other liabilities	178,664	209,210
Total liabilities	12,917,937	12,267,565
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, 126,612,183 and 127,019,452 shares issued and outstanding, respectively	1,266	1,270
Additional paid-in capital	1,010,405	1,015,502
Retained earnings	609,529	555,480
Accumulated other comprehensive loss	(37,629)	(33,549)
Total shareholders’ equity	1,583,571	1,538,703
Total liabilities and shareholders’ equity	$ 14,501,508	$ 13,806,268

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Marketable securities available-for-sale, amortized cost	$ 1,565,002	$ 1,375,685
Fair value	$ 751,513	$ 179,666
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)	126,612,183	127,019,452
Common stock, shares outstanding (in shares)	126,612,183	127,019,452

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income:
Loans receivable	$ 390,343	$ 410,907	$ 394,809
Mortgage-backed securities	21,463	17,416	16,670
Taxable investment securities	2,616	1,985	3,401
Tax-free investment securities	2,485	2,060	844
FHLB stock dividends	407	981	1,056
Interest-earning deposits	1,194	719	600
Total interest income	418,508	434,068	417,380
Interest expense:
Deposits	19,122	35,896	49,216
Borrowed funds	8,124	6,444	7,698
Total interest expense	27,246	42,340	56,914
Net interest income	391,262	391,728	360,466
Provision for credit losses	(11,883)	83,975	22,659
Net interest income after provision for credit losses	403,145	307,753	337,807
Noninterest income:
Gain/(loss) on sale of investments	(176)	236	50
Gain on sale of loans	0	1,302	1,734
Service charges and fees	51,837	55,613	53,065
Trust and other financial services income	27,921	20,922	17,765
Insurance commission income	3,633	9,132	8,068
Gain/(loss) on real estate owned, net	442	(106)	(53)
Income from bank-owned life insurance	6,050	5,190	4,418
Mortgage banking income	15,892	31,391	3,819
Gain on sale of insurance business	25,327	0	0
Other operating income	11,963	8,585	10,541
Total noninterest income	142,889	132,265	99,407
Noninterest expense:
Compensation and employee benefits	193,887	178,375	163,086
Premises and occupancy costs	31,073	30,622	28,717
Office operations	13,769	15,728	14,133
Collections expense	1,932	3,275	2,560
Processing expenses	55,763	50,050	42,453
Marketing expenses	8,237	7,695	6,998
Federal deposit insurance premiums	4,975	4,767	685
Professional services	17,621	12,482	12,287
Amortization of intangible assets	5,553	6,856	6,543
Real estate owned expense	298	359	478
Merger, asset disposition and restructuring expense	3,453	20,789	4,168
Other expenses	8,349	16,494	13,995
Total noninterest expense	344,910	347,492	296,103
Income before income taxes	201,124	92,526	141,111
Provision for income taxes:
Federal	35,306	14,896	24,069
State	11,495	2,776	6,610
Total provision for income taxes	46,801	17,672	30,679
Net income available to common shareholders	$ 154,323	$ 74,854	$ 110,432
Basic earnings per share (in dollars per share)	$ 1.22	$ 0.62	$ 1.05
Diluted earnings per share (in dollars per share)	$ 1.21	$ 0.62	$ 1.04

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 154,323	$ 74,854	$ 110,432
Net unrealized holding gains/(losses) on marketable securities:
Unrealized holding gains/(losses), net of tax of $10,333, $(5,607), and $(3,994), respectively	(28,873)	13,711	9,984
Reclassification adjustment for gains included in net income, net of tax of $92, $6, and $2, respectively	(287)	(15)	(5)
Net unrealized holding gains/(losses) on marketable securities	(29,160)	13,696	9,979
Change in fair value of interest rate swaps:
Unrealized holding losses on interest rate swaps, net of tax of $0, $209, and $0, respectively	0	(946)	0
Reclassification adjustment for losses included in net income, net of tax of $0, $(209), and $0, respectively	0	946	0
Net change in fair value of interest rate swaps	0	0	0
Defined benefit plan:
Net gain/(loss), net of tax $(9,144), $4,169, $3,193, respectively	23,748	(11,301)	(8,059)
Reclassification adjustments for prior period service costs and net losses included in net income, net of tax of $(515), $(395), and $(334), respectively	1,332	997	835
Net gain/(loss) on defined benefit plans	25,080	(10,304)	(7,224)
Other comprehensive income/(loss)	(4,080)	3,392	2,755
Total comprehensive income	$ 150,243	$ 78,246	$ 113,187

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Income tax (expense) benefit related to unrealized holding gains/ losses on securities	$ 10,333	$ (5,607)	$ (3,994)
Income tax (expense) benefit related to (gain) loss on securities	92	6	2
Unrealized holding losses on interest rate swaps, tax	0	209	0
Reclassification adjustment for losses included in net income, tax	0	(209)	0
Net loss, tax	(9,144)	4,169	3,193
Reclassification adjustments for prior period service costs and net losses included in net income, tax	$ (515)	$ (395)	$ (334)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common  stock	Additional paid-in capital	Retained earnings	Retained earningsCumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income/(loss)
Balance at beginning of the period at Dec. 31, 2018	$ 1,257,638	$ (1,226)	$ 1,034	$ 745,926	$ 550,374	$ (1,226)	$ (39,696)
Increase (Decrease) in Stockholders' Equity
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Net income
Net income	$ 110,432				110,432
Other comprehensive (loss) income net of tax	2,755						2,755
Total comprehensive income	113,187				110,432		2,755
Acquisition of Mutual Bank	43,288		24	43,264
Exercise of stock options	9,727		9	9,718
Stock-based compensation expense	6,845		3	6,842
Stock-based compensation forfeited	(1)		(1)
Dividends paid	(76,173)				(76,173)
Balance at end of the period at Dec. 31, 2019	1,353,285	$ (9,649)	1,069	805,750	583,407	$ (9,649)	(36,941)
Net income
Net income	74,854				74,854
Other comprehensive (loss) income net of tax	3,392						3,392
Total comprehensive income	78,246				74,854		3,392
Acquisition of Mutual Bank	213,406		206	213,200
Exercise of stock options	1,479		1	1,478
Share repurchases	(9,276)		(7)	(9,269)
Stock-based compensation expense	4,239		3	4,236
Stock-based compensation forfeited	0		(2)	2
Other	105			105
Dividends paid	(93,132)				(93,132)
Balance at end of the period at Dec. 31, 2020	1,538,703		1,270	1,015,502	555,480		(33,549)
Net income
Net income	154,323				154,323
Other comprehensive (loss) income net of tax	(4,080)						(4,080)
Total comprehensive income	150,243				154,323		(4,080)
Exercise of stock options	14,011		12	13,999
Share repurchases	(23,854)		(18)	(23,836)
Stock-based compensation expense	4,742		3	4,739
Stock-based compensation forfeited	0		(1)	1
Dividends paid	(100,274)				(100,274)
Balance at end of the period at Dec. 31, 2021	$ 1,583,571		$ 1,266	$ 1,010,405	$ 609,529		$ (37,629)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Other comprehensive income, tax	$ 858	$ (1,287)	$ (1,129)
Dividends paid, per share (in dollars per share)	$ 0.79	$ 0.76	$ 0.72

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 154,323	$ 74,854	$ 110,432
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(11,883)	83,975	22,659
Net gain on sale of assets	(1,201)	(3,249)	(2,472)
Mortgage banking activity	(20,120)	(25,798)	0
Gain on sale of insurance business	(25,327)	0	0
Net depreciation, amortization and accretion	6,633	4,738	3,824
(Increase)/decrease in other assets	22,163	(16,097)	(66,080)
Increase in other liabilities	4,025	47,018	53,998
Net amortization on marketable securities	7,757	3,797	922
Noncash compensation expense related to stock benefit plans	4,742	4,239	6,845
Noncash write-down of real estate owned	173	321	607
Deferred income tax (benefit)/expense	12,314	(8,084)	2,776
Origination of loans held-for-sale	(752,831)	(729,939)	(68,400)
Proceeds from sale of loans held-for-sale	804,690	704,660	62,351
Net cash provided by operating activities	205,458	140,435	127,462
Investing activities:
Purchase of marketable securities held-to-maturity	(658,817)	(164,629)	0
Purchase of marketable securities available-for-sale	(705,146)	(830,487)	(200,204)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	68,495	3,760	4,707
Proceeds from maturities and principal reductions of marketable securities available-for-sale	449,372	392,511	241,079
Proceeds from sale of marketable securities available-for-sale	59,579	1,096	32,389
Proceeds of bank-owned life insurance	3,984	596	2,638
Loan originations	(3,961,816)	(4,655,969)	(3,721,001)
Proceeds from loan maturities and principal reductions	4,490,089	4,383,933	3,275,400
Proceeds from sale of loans held for investment	0	50,791	97,923
Net proceeds of FHLB stock	7,564	6,107	1,348
Proceeds from sale of real estate owned	2,700	1,651	4,198
Proceeds from sale of real estate owned for investment, net	305	607	608
Purchases of premises and equipment	(17,517)	(12,254)	(10,899)
Proceeds from sale of insurance business	28,238	0	0
Acquisitions, net of cash received	0	261,712	(28,779)
Net cash used in investing activities	(232,970)	(560,575)	(300,593)
Financing activities:
Net increase in deposits	701,932	1,390,187	218,449
Proceeds from long-term borrowings	0	123,211	0
Repayments of long-term borrowings	(22,105)	(206,908)	0
Net increase/(decrease) in short-term borrowings	1,432	(108,675)	11,947
Increase/(decrease) in advances by borrowers for taxes and insurance	(648)	(1,315)	1,238
Cash dividends paid on common stock	(100,274)	(93,132)	(76,173)
Proceeds from stock options exercised	14,011	1,479	9,727
Purchase of common stock for retirement	(23,854)	(9,276)	0
Net cash provided by financing activities	570,494	1,095,571	165,188
Net increase/(decrease) in cash and cash equivalents	542,982	675,431	(7,943)
Cash and cash equivalents at beginning of period	736,277	60,846	68,789
Cash and cash equivalents at end of period	1,279,259	736,277	60,846
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $18,711, $34,313, and $44,928, respectively)	27,496	41,428	54,277
Income taxes	33,576	29,767	29,283
Business acquisitions:
Fair value of assets acquired	0	2,090,599	584,253
Northwest Bancshares, Inc. common stock issued	0	(213,406)	(43,288)
Net cash paid	0	0	(45,600)
Liabilities assumed	0	1,877,193	495,365
Noncash activities:
Loan foreclosures and repossessions	4,897	5,643	5,815
Sale of real estate owned financed by the Company	$ 54	$ 126	$ 44

CONSOLIDATED STATEMENTS OF CA_2

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Cash Flows [Abstract]
Interest on deposits and borrowings, interest credited to deposit accounts	$ 18,711	$ 34,313	$ 44,928

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies (a) Nature of Operations Northwest Bancshares, Inc., a Maryland corporation headquartered in Columbus, Ohio, is the federal savings and loan holding company for its wholly owned subsidiary, Northwest Bank. Northwest Bank, a Pennsylvania chartered savings bank, offers personal and business deposit and loan products as well as investment management and insurance services through its 170 banking locations in Pennsylvania, New York, Ohio, and Indiana. We have determined that we have one reportable business segment. (b) Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries after elimination of all intercompany accounts and transactions. (c) Cash and Cash Equivalents For purposes of the statements of financial condition and cash flows, cash and cash equivalents include cash and amounts due from banks, interest-bearing deposits in other financial institutions, federal funds sold, and other short-term investments with original maturities of three months or less. (d) Marketable Securities We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading. Securities for which management has the intent and ability to hold until maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/(loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or during the years ended December 31, 2021 and 2020. Fair values are determined as described in Note 17. Throughout the year we validate the prices received from third parties by comparing them to prices provided by a different independent pricing service. We have reviewed the detailed valuation methodologies provided to us by our pricing services. On a quarterly basis, we measure expected credit losses on held-to-maturity debt securities on a collective basis by major security type and all of our held-to-maturity debt securities are residential mortgage-backed securities. Accrued interest receivable on held-to-maturity debt securities totaled $2.2 million and $1.8 million at December 31, 2021 and December 31, 2020, respectively, and is excluded from estimated credit losses. All of our residential mortgage-backed securities are issued by U.S. government entities and agencies. 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. For available-for-sale debt securities in an unrealized loss position, on at least a quarterly basis, we review our investments for impairment. An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. We consider both our intent to sell and the likelihood that we will not have to sell the investment securities before recovery of their amortized cost basis during our evaluation. If we intend to sell the investment security or if it is more likely than not that we will be required to sell the investment security, the entire impairment is recorded in earnings. For available-for-sale debt securities that do not meet this criteria, we evaluate whether the decline in fair value has resulted from credit losses or other factors. In making this assessment we consider the issuer of the securities and their creditworthiness, any changes to the rating of the security and any adverse conditions specifically related to the security, among other factors. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when we believe the uncollectibility of an available-for-sale security is confirmed or when there is an intent or requirement to sell the security. Accrued interest receivable on available-for-sale debt securities totaled $1.9 million at December 31, 2021 and December 31, 2020, and is excluded from the estimate of credit losses. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days past due. The receivable for interest income that is accrued but not collected is reversed against interest income when the debt security is placed on nonaccrual status. (e) Loans Receivable Our portfolio segments are based on the class of financing receivable. Additionally, the class of financing receivables are based on several factors including the method for monitoring and assessing credit risk and the risk characteristics of the financing receivables. Based on evaluation of the nature of our financing receivables, along with the nature and extent of exposure to credit risk arising from these receivables, our portfolio segments were determined to be Personal Banking and Business Banking loans. • Personal Banking loans consist of the following classes of financing receivables: ◦ Residential mortgage loans - fixed and adjustable rate mortgage loans ◦ Home equity loans - first and second mortgage loans and home equity lines of credit ◦ Vehicle loans - direct and indirect automobile and motorcycle loans ◦ Consumer loans - unsecured lines of credit, credit card loans, and other consumer loans • Business Banking loans consist of the following classes of financing receivables: ◦ Commercial real estate - multi-family commercial real estate loans are secured by multi-family residences, such as rental properties and loans secured by nonresidential properties such as hotels, commercial offices, medical buildings, manufacturing facilities and retail establishments, excluding owner-occupied loans, and including small business commercial real estate loans ◦ Commercial real estate - owner-occupied loans - commercial real estate loans secured by residential or non-residential properties ◦ Commercial loans - other commercial loans, including small business commercial loans Loans are reported at amortized cost. Amortized cost is the principal balance outstanding, net of any deferred purchased premiums and discounts, deferred origination fees or costs and the allowance for credit losses. Accrued interest receivable totaled $21.3 million and $31.7 million at December 31, 2021 and December 31, 2020, respectively, and was reported in accrued interest receivable on the Consolidated Statements of Financial Position. Accrued interest receivable is excluded from the amortized cost basis of loans and from the estimate of allowance for credit losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed and such loans are placed on nonaccrual status. All loans are placed on nonaccrual status when principal or interest is 90 days or more delinquent or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all nonaccrual loans are recognized as interest income when it has been determined that all principal and interest will be collected or are applied to principal when collectability of contractual principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months. A loan is considered to be a troubled debt restructuring loan (“TDR”) when the borrower is experiencing financial difficulties and the restructuring constitutes a concession. TDRs may include modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified as a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk. Loan delinquency is measured based on the number of days since the payment due date. Past due status is measured using the loan’s contractual maturity date. Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible or when it has been determined that the collateral value no longer supports the carrying value of the loan for loans that are collateral dependent. Loan fees and certain direct loan origination costs are deferred and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income. We identify certain residential mortgage loans which will be sold prior to maturity, as loans held-for-sale. These loans are recorded at fair value less estimated cost to sell. At December 31, 2021 and 2020, there were $25.1 million and $58.8 million of residential mortgage loans classified as held-for-sale, respectively. Acquired loans that are not considered purchased with credit deterioration (“PCD”) are initially measured at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. Acquired loans may be classified as PCD loans upon acquisition if they have experienced more than insignificant credit deterioration since origination. Loans are considered to have experienced more than insignificant credit deterioration if they are greater than 30 days past due, classified special mention or worse or on nonaccrual status. An allowance for credit losses on day 1 is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The allowance is recognized on day 1 by adding it to the fair value of the loan, which is the “Day 1 amortized cost”. There is no credit loss expense recognized on PCD loans because the initial allowance is established by grossing-up the amortized cost of the PCD loan. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision expense. (f) Allowance for Credit Losses and Provision for Credit Losses The allowance for credit losses is deducted from, or added to, the loan’s amortized cost basis to present the net amount expected to be collected on our lending portfolios. We estimate the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Loans are charged off against the allowance when we believe the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Expected credit losses are estimated over the contractual term of the loans, adjusted for prepayments. The contractual term excludes expected extensions, renewals and modifications unless we had a reasonable expectation at the reporting date that a TDR will be executed for an individual borrower or the extension or renewal option is included in the contract and is not unconditionally cancellable by the Company. Credit card receivables do not have stated maturities. In determining the estimated life of a credit card receivable, we first estimate the future cash flows expected to be received and then apply those expected future cash flows to the credit card balance. Expected credit losses for credit cards are determined by estimating the amount and timing of principal payments expected to be received as payment for the balance outstanding as of the reporting date and applying those principal payments against the balance outstanding as of the reporting period until the expected payments have been fully allocated. The allowance for credit losses is recorded for the excess of the balance outstanding as of the reporting period over the expected principal payments. The allowance for credit losses is measured on a collective (“pool”) basis when similar risk characteristics exist. For the purpose of calculating portfolio-level reserves, we have grouped our loans into seven segments: residential mortgage loans, home equity loans, vehicle loans, consumer loans, commercial real estate loans, commercial real estate owner-occupied and commercial loans. The allowance for credit losses is measured at the pool level utilizing loan-level inputs wherever possible. We use a twenty-four month forecasting period and revert to historical average loss rates thereafter. The reasonable and supportable forecast is based on a probability-weighted multiple economic scenario approach and obtained from a third party vendor. Reversion to the mean takes place over a twelve-month period. Our loss rate models utilize a linear reversion method. For our Probability of Default (“PD”)/Loss Given Default (“LDG”) models we revert the PD utilizing exponential reversion, which is an accelerated method, and the LGD utilizing a linear reversion method. Historical average loss rates are calculated using historical data beginning in 2009 through the current period. As part of the analysis as of December 31, 2021, we considered the most recent economic conditions and forecasts available which incorporated the impact of COVID-19. Mortgage and Home Equity Loans The allowance for credit losses within the mortgage and home equity loan classes is calculated at the pool-level using a non-discounted cash flow method through a PD and LGD model developed by an external third-party. These classes are further divided into smaller pools of loans with similar risk characteristics such as: lines versus loans, fixed versus variable, senior lien position versus junior lien position, among other things. For each pool, the models project default rates, prepayment rates, and severity rates. The models accept as inputs key risk drivers such as: current balance, original credit bureau score, original loan-to-value ratio, type of collateral, location of collateral, delinquency status, loan age, among other characteristics. They also utilize macroeconomic forecasts of home price indices, unemployment rates, gross domestic product, and others. Vehicle Loans The allowance for credit losses within the vehicle loan portfolio is calculated at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. The allowance for vehicle loans utilizes a vintage analysis to project portfolio-level net charge-off rates. The class is further divided into short term versus long term loans, prime versus subprime borrowers, and origination vintage. This model uses current balance, original credit bureau score, original debt-to-income ratio, loan term, loan age, and other product characteristics as key risk drivers. The model used for vehicle loans is not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. Consumer Loans The allowance for credit losses within the consumer loan portfolio is calculated at the portfolio-level using a non-discounted cash flow method through a suite of loss rate models developed internally with the assistance of an external third-party. This class of financing receivables is further divided into credit cards, unsecured lines of credit and other consumer loans. The allowance for credit losses for credit cards and unsecured lines of credit is calculated using two transition matrix models to project portfolio-level net charge-off rates. Both models use current balance and delinquency status as key risk drivers. These models are not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. For other consumer loans, a regression model is used to project portfolio-level net charge-off rates. This model uses borrower information and macroeconomic forecasts as key inputs. Commercial Real Estate Loans The commercial real estate loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial real estate loans and small business commercial real estate loans. The allowance for credit losses for the commercial real estate loan portfolio is calculated at the pool level using a non-discounted cash flow method through a PD/LGD model developed by an external third-party. This model projects default and severity rates. The model accepts as inputs key risk drivers such as: current balance, original loan-to-value-ratio, type of collateral, location of collateral, delinquency status, loan age, obligor financial statement information, and expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of commercial real estate price indices, unemployment rates, gross domestic product and others. The allowance for credit losses is calculated for commercial real estate small business loans at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Commercial Loans and Commercial Real Estate - Owner Occupied Loans The allowance for credit losses for the commercial loan portfolio and the commercial real estate - owner occupied loan portfolio is calculated at the pool level using a non-discounted cash flow method through a PD/LGD model developed by an external third-party. The commercial loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial loans and commercial small business loans. The commercial loan portfolio and the commercial real estate owner occupied loan portfolio models project default and severity rates. The model accepts as inputs key risk drivers such as the obligor financial statement information, collateral type, the obligor’s primary industry, expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of unemployment rates, gross domestic product, corporate bond spreads, and others. The allowance for credit losses for commercial small business loans is calculated at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When we determine that foreclosure is probable or when the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. If this criteria is not met, a discounted cash flow method is used to determine the allowance for credit losses. All changes in the discounted cash flow method over time are reported in the allowance for credit losses. The allowance calculation is also supplemented with qualitative reserves that takes into consideration the current portfolio and specific risk characteristics, such as changes in underwriting standards, portfolio mix, delinquency level, or term, as well as changes in environmental conditions, among other factors, that have occurred but are not yet reflected in the quantitative model component. The allowance for credit losses on a TDR is measured using the same method as all other loans held for investment, except when the value of the concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit losses is determined by discounting the expected future cash flows at the original interest rate of the loan. For off-balance-sheet credit exposures, we estimate expected credit losses over the contractual period in which we are exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable. The liability for credit losses on off-balance-sheet credit exposures is adjusted through a provision for credit loss expense and is included within “other expenses”. We estimate the liability balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. The estimate includes a consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Off-balance-sheet exposures that are not unconditionally cancellable have been identified for the mortgage, home equity, commercial real estate, and commercial loan portfolios. Results for reporting periods beginning after January 1, 2020 are presented under CECL methodology while prior period amounts continue to be reported in accordance with Accounting Standards Codification (“ASC”) Topic 450, Contingencies; and specific reserves based upon ASC Topic 310, Receivables. ASC Topic 450 applies to homogeneous loan pools such as commercial loans, consumer lines of credit and residential mortgages that are not individually evaluated for impairment. ASC Topic 310 is applied to commercial and consumer loans that are individually evaluated for impairment. (g) Real Estate Owned Real estate owned is comprised of property either acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the loan balance or fair value of the collateral, less estimated disposition costs, with the fair value being determined by an appraisal. Any initial write-down is charged to the allowance for credit losses. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or the current fair value, less estimated disposition costs. Any subsequent write-down or gains or losses realized from the disposition of such property are credited or charged to noninterest income. (h) Restricted Investment in FHLB Stock Federal law requires a member institution of the FHLB system to hold stock of its district FHLB according to a predetermined formula. FHLB stock is carried at cost and evaluated for impairment based on the ultimate recoverability of the par value. FHLB stock can only be purchased, redeemed and transferred at par value. Dividends are reported in interest income in the Consolidated Statements of Income. (i) Premises and Equipment Premises and equipment are carried at cost, less accumulated depreciation and amortization. Depreciation is accumulated on a straight-line basis over the estimated useful lives of the related assets. Estimated lives range from three (j) Goodwill Goodwill is generated from the premium paid for an acquisition and is allocated to reporting units, which are either our reportable segments or one level below. Reporting units are identified based upon analyzing each individual operating segment. A reporting unit is defined as a distinct, separately identifiable component of an operating segment for which complete, discrete financial information is available that management regularly reviews. Goodwill is not subject to amortization but is tested for impairment at least annually and possibly more frequently if certain events occur or changes in circumstances arise. In testing goodwill for impairment, we have the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, after assessing all events and circumstances, we determine it is not more likely than not that the fair value of a reporting unit is less than its carrying value, then performing the two-step impairment test would be unnecessary. However, if we conclude otherwise, it would then be required to perform the first step of the goodwill impairment test and continue to the second step, if necessary. Step 1 requires the fair value of each reporting unit be compared to its carrying amount, including goodwill. Determining the fair value of a reporting unit requires a high degree of subjective judgment, including developing cash flow projections, selecting appropriate discount rates, identifying relevant market comparables, incorporating general economic and market conditions and selecting an appropriate control premium. We have established June 30 of each year as the date for conducting our annual goodwill impairment assessment. Quarterly, we evaluate if there are any triggering events that would require an update to our previous assessment. We conducted our annual impairment assessment as of June 30, 2021 by first performing a qualitative assessment of goodwill to determine if it was more likely than not that the fair value was less than the carrying value. In performing a qualitative analysis, factors considered include, but are not limited to, macroeconomic conditions, industry and market conditions and overall financial performance. The results of the qualitative assessment for 2021 indicated that it was not more likely than not that the fair value of the reporting unit was less than the carrying value. Consequently, no additional quantitative two-step impairment test was required and no impairment was recorded in 2021. Future events could cause us to conclude that goodwill has become impaired, which would result in recording an impairment loss. There were no changes in our operations that would cause us to update the assessment performed as of June 30, 2021 and 2020. Accordingly, we have determined that goodwill is not impaired as of December 31, 2021 and 2020. (k) Core Deposit and Other Identifiable Intangibles Through the assistance of an independent third party, we analyze and prepare a core deposit study for all bank acquisitions or other identifiable intangible asset study, such as customer lists, for all non-bank acquisitions. The core deposit study reflects the cumulative present value benefit of acquiring deposits versus an alternative source of funding. The other identifiable intangible asset study reflects the cumulative present value benefit of acquiring the income stream from an existing customer base versus developing new business relationships. Based upon analysis, the amount of the premium related to the core deposits or other identifiable intangibles of the business purchased is calculated along with the estimated life of the intangible. The intangible, which is recorded in other intangible assets, is then amortized to expense on an accelerated basis over an approximate life of typically between seven (l) Bank-Owned Life Insurance We own insurance on the lives of a certain group of current and former employees and directors. The policies were purchased to help offset the increase in the costs of various benefit plans, including healthcare, as well as the directors deferred compensation plan. The cash surrender value of these policies is included as an asset on the Consolidated Statements of Financial Condition and any increases in the cash surrender value are recorded as tax-free noninterest income on the Consolidated Statements of Income. In the event of the death of an insured individual covered by these policies, after distribution to the insured’s beneficiaries, if any, we receive a tax-free death benefit, which is recorded as noninterest income. (m) Deposits Interest on deposits is accrued and charged to expense monthly and is paid or credited in accordance with the terms of the accounts. (n) Revenue Recognition Revenue that is not associated with our financial assets and financial liabilities is recognized when performance obligations under the terms of a contract with our customers are satisfied. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. The majority of our revenue continues to be recognized at the point in time when the services are provided to our customers. (o) Pension Plans We maintain multiple noncontributory defined benefit pension plans (“Pension Plan”) for substantially all of our employees. The net periodic pension cost has been calculated using service cost, interest cost, expected returns on plan assets and net amortization. The other components of the net periodic benefit cost are included in other expense on the Consolidated Statement of Income and are reported separately from the service costs. Pension expense and obligations depend on assumptions used in calculating such amounts. These assumptions include discount rates, anticipated salary increases, interest costs, expected return on plan assets, mortality rates, and other factors. In determining the projected benefit obligations for pension benefits at December 31, 2021 and 2020, we u sed a discount rate of 2.75% and 2.39%, respectively. We use the FTSE (previously Citigroup) Pension Liability Index rates matching the duration of our benefit payments as of the measurement date, December 31, to determine the discount rate. (p) Income Taxes We join with our wholly owned subsidiaries in filing a consolidated federal income tax return. In accordance with an intercompany tax allocation agreement, the applicable federal income tax expense or benefit is allocated to each subsidiary based upon taxable income or loss calculated on a separate company basis. Each subsidiary is responsible for payment of its own federal income tax liability or receives reimbursement of federal income tax benefit. In addition, deferred taxes are calculated and maintained on a separate company basis. We account for inc

Recently Adopted Accounting Sta

Recently Adopted Accounting Standards	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In August 2018, the FASB issued ASU 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20) - Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans”. This guidance removes and adds disclosure requirements for defined benefit pension or other post-retirement plans. On January 1, 2021, the Company adopted ASU 2018-14 on a retrospective basis for disclosures impacted. The adoption of this standard did not have a material effect on our results of operations or financial position. Refer to Note 15, “Employee Benefit Plans ” . In December 2019, the FASB issued ASU 2019-12, “Income Taxes - Simplifying the Accounting for Income Taxes”.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases At inception, the Company determines if an arrangement contains a lease and whether that lease meets the classification of a finance or operating lease. Operating lease right of use (“ROU ” ) assets represent our right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments. ROU assets are further adjusted for lease incentives and initial direct costs. The Company has operating leases for certain branch and office facilities or land with lease terms up to 35 years. These leases generally contain renewal options for periods ranging from one Some of the Company’s lease arrangements contain lease components (e.g., minimum rent payments) and non-lease components (e.g., common area maintenance, taxes, etc.). For all leases, the Company elected the option of not separating lease and non-lease components and instead we account for them as a single lease component. Certain lease agreements include rental payments that are adjusted periodically for an index or rate. The leases are initially measured using the projected adjustment for the index or rate in effect at the commencement date. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. Generally, the Company cannot practically determine the interest rate implicit in the lease. Therefore, the Company uses its incremental borrowing rate as the discount rate for the lease. The Company’s incremental borrowing rate for a lease is the rate of interest it would have to pay on a collateralized basis to borrow an amount equal to the lease payments under similar terms. Lease expense for these leases is recognized on a straight-line basis over the lease term, with variable lease payments recognized in the period those payments are incurred. The components of lease cost recognized within our Consolidated Statements of Income were as follows: For the years ended December 31, 2021 2020 Operating lease costs (office operations) $ 5,802 6,139 Variable lease costs (office operations) 662 680 Total operating lease costs $ 6,464 6,819 Amounts reported in the Consolidated Statements of Financial Condition were as follows: For the years ended December 31, 2021 2020 Operating leases: Operating lease ROU assets (other assets) $ 54,887 48,329 Operating lease liabilities (other liabilities) 57,726 52,206 Other information related to leases were as follows: For the years ended December 31, 2021 2020 Supplemental cash flow information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flow from operating leases $ 6,143 6,204 ROU assets obtained in exchange for lease obligations 12,866 8,657 Weighted average remaining lease term 15.9 years 15.1 years Weighted average discount rate 3.1 % 3.4 % Amounts disclosed for ROU assets obtained in exchange for lease obligations include amounts added to the carrying amount of ROU assets resulting from lease modifications and reassessments. Maturities of lease liabilities by fiscal year for our operating leases are as follows: As of December 31, 2021 2022 $ 6,080 2023 5,777 2024 5,039 2025 4,822 2026 4,734 Thereafter 48,471 Total lease payments 74,923 Less amount of lease payments representing interest 17,197 Total present value of lease payments $ 57,726

Marketable Securities

Marketable Securities	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Marketable Securities Marketable securities available-for-sale at December 31, 2021 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due in one year through five years $ 20,000 — (68) 19,932 Due after ten years 57,681 — (1,722) 55,959 Debt issued by government sponsored enterprises: Due in less than one year 177 — — 177 Due in one year through five years 991 73 — 1,064 Due in five years through ten years 46,411 1 (1,568) 44,844 Municipal securities: Due in less than one year 946 13 — 959 Due in one year through five years 1,261 22 (3) 1,280 Due in five years through ten years 23,692 661 (146) 24,207 Due after ten years 99,558 2,884 (187) 102,255 Residential mortgage-backed securities: Fixed rate pass-through 265,604 2,389 (2,525) 265,468 Variable rate pass-through 11,306 294 (9) 11,591 Fixed rate agency CMOs 997,680 2,284 (18,965) 980,999 Variable rate agency CMOs 39,695 224 (62) 39,857 Total residential mortgage-backed securities 1,314,285 5,191 (21,561) 1,297,915 Total marketable securities available-for-sale $ 1,565,002 8,845 (25,255) 1,548,592 Marketable securities held-to-maturity at December 31, 2021 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due in one year through five years $ 16,478 — (206) 16,272 Due in five years through ten years 107,973 — (4,613) 103,360 Residential mortgage-backed securities: Fixed rate pass-through 183,092 58 (2,161) 180,989 Variable rate pass-through 667 24 — 691 Fixed rate agency CMOs 459,345 251 (10,011) 449,585 Variable rate agency CMOs 599 17 — 616 Total residential mortgage-backed securities 643,703 350 (12,172) 631,881 Total marketable securities held-to-maturity $ 768,154 350 (16,991) 751,513 Marketable securities available-for-sale at December 31, 2020 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due after ten year $ 40,761 211 (55) 40,917 Debt issued by government-sponsored enterprises: Due in less than one year 24,976 159 — 25,135 Due in one year through five years 238 3 — 241 Due in five years through ten years 68,973 238 (80) 69,131 Municipal securities: Due in less than one year 4,008 14 — 4,022 Due in one year through five years 2,803 63 (2) 2,864 Due in five years through ten years 16,045 429 (5) 16,469 Due after ten years 89,778 3,752 (72) 93,458 Residential mortgage-backed securities: Fixed rate pass-through 339,406 7,125 (86) 346,445 Variable rate pass-through 14,778 431 (20) 15,189 Fixed rate agency CMOs 723,586 11,758 (1,093) 734,251 Variable rate agency CMOs 50,333 519 (33) 50,819 Total residential mortgage-backed securities 1,128,103 19,833 (1,232) 1,146,704 Total marketable securities available-for-sale $ 1,375,685 24,702 (1,446) 1,398,941 Marketable securities held-to-maturity at December 31, 2020 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due after five years through ten years $ 67,990 12 (123) 67,879 Residential mortgage-backed securities: Fixed rate pass-through 1,723 131 — 1,854 Variable rate pass-through 919 30 — 949 Fixed rate agency CMOs 107,651 716 (2) 108,365 Variable rate agency CMOs 604 15 — 619 Total residential mortgage-backed securities 110,897 892 (2) 111,787 Total marketable securities held-to-maturity $ 178,887 904 (125) 179,666 The following table shows the contractual maturity of our residential mortgage-backed securities available-for-sale at December 31, 2021: Amortized cost Fair value Residential mortgage-backed securities: Due in less than one year $ 490 491 Due in one year through five years 14,013 14,126 Due after five years through ten years 89,594 89,948 Due after ten years 1,210,188 1,193,350 Total residential mortgage-backed securities $ 1,314,285 1,297,915 The following table shows the contractual maturity of our residential mortgage-backed securities held-to-maturity at December 31, 2021: Amortized cost Fair value Residential mortgage-backed securities: Due in one year through five years $ 792 833 Due after five years through ten years 40,494 38,817 Due after ten years 602,417 592,231 Total residential mortgage-backed securities $ 643,703 631,881 The following table presents information regarding the issuers and the carrying values of our mortgage-backed securities at December 31, 2021 and 2020: December 31, 2021 2020 Residential mortgage-backed securities: FNMA $ 704,070 532,532 GNMA 577,684 367,354 FHLMC 659,433 357,249 Other (including non-agency) 431 466 Total residential mortgage-backed securities $ 1,941,618 1,257,601 Marketable securities having a carrying value of $227.5 million at December 31, 2021 were pledged under collateral agreements. During the year ended December 31, 2021, we sold marketable securities classified as available-for-sale for $59.6 million, with gross realized gains of $410,000 and gross realized losses of $396,000. During the year ended December 31, 2020, we sold marketable securities classified as available-for-sale for $1.1 million, with gross realized gains of $64,000 and no gross realized losses. During the year ended December 31, 2019, we sold marketable securities classified as available-for-sale for $32.4 million, with gross realized gains of $29,000 and no gross realized losses. During the years ended December 31, 2021 and 2020, we did not recognize allowance for credit losses in our investment portfolio and during the year ended December 31, 2019, we did not recognize non-cash credit related other-than-temporary-impairment in our investment portfolio. The following table shows the fair value and gross unrealized losses on 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, 2021: Less than 12 months 12 months or more Total Fair value Unrealized Fair value Unrealized Fair value Unrealized U.S. government sponsored enterprises $ 132,782 (3,504) 106,160 (4,673) 238,942 (8,177) Municipal securities 25,118 (336) — — 25,118 (336) Residential mortgage-backed securities 1,428,582 (26,516) 184,389 (7,217) 1,612,971 (33,733) Total temporarily impaired securities $ 1,586,482 (30,356) 290,549 (11,890) 1,877,031 (42,246) The following table shows the fair value and gross unrealized losses on 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, 2020: Less than 12 months 12 months or more Total Fair value Unrealized Fair value Unrealized Fair value Unrealized U.S. government sponsored enterprises $ 67,809 (179) 1,923 (80) 69,732 (259) Municipal securities 4,257 (79) — — 4,257 (79) Residential mortgage-backed securities 300,767 (1,202) 5,533 (31) 306,300 (1,233) Total temporarily impaired securities $ 372,833 (1,460) 7,456 (111) 380,289 (1,571) The Company does not believe that the available-for-sale debt securities that were in an unrealized loss position as of December 31, 2021, which were comprised of 245 individual securities, represents a credit loss impairment. All of these securities were issued by U.S. government agencies or U.S. government-sponsored agencies. 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 unrealized losses were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities. The Company does not have the intent to sell these investment securities and it is likely 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 securities are issued by U.S. government-sponsored agencies. 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. Therefore, the Company did not record an allowance for credit losses for these securities as of December 31, 2021. The following table presents the credit quality for our held-to-maturity securities, based on the latest information available as of December 31, 2021. The credit ratings are sourced from nationally recognized rating agencies, including Moody ’ s and S&P, or when credit ratings cannot be sourced from the agencies, 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 December 31, 2021. AA+ Total Held-to-maturity securities: Debt issued by the U.S. government-sponsored agencies $ 124,451 124,451 Residential mortgage-backed securities 643,703 643,703 Total marketable securities held-to-maturity $ 768,154 768,154

Loans Receivable

Loans Receivable	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Loans Receivable	Loans Receivable On January 1, 2020, the Company adopted ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments ” using the modified retrospective transition approach. As a result, the Company was not required to adjust its comparative period financial information for effects of the standard or make the new required ASC 326 disclosures for periods before the date of adoption (i.e., January 1, 2020). The following table shows a summary of our loans receivable at amortized cost basis at December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 December 31, 2020 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,783,459 211,161 2,994,620 2,753,593 314,528 3,068,121 Home equity loans 1,107,202 212,729 1,319,931 1,175,703 292,033 1,467,736 Vehicle loans 1,384,246 99,985 1,484,231 995,040 157,633 1,152,673 Consumer loans 307,961 46,556 354,517 288,066 67,254 355,320 Total Personal Banking 5,582,868 570,431 6,153,299 5,212,402 831,448 6,043,850 Commercial Banking: Commercial real estate loans 2,202,027 423,454 2,625,481 2,223,108 624,873 2,847,981 Commercial real estate loans - owner occupied 321,253 68,750 390,003 344,016 153,892 497,908 Commercial loans 765,877 81,732 847,609 1,019,482 171,628 1,191,110 Total Commercial Banking 3,289,157 573,936 3,863,093 3,586,606 950,393 4,536,999 Total loans receivable, gross 8,872,025 1,144,367 10,016,392 8,799,008 1,781,841 10,580,849 Allowance for credit losses (86,750) (15,491) (102,241) (102,874) (31,553) (134,427) Total loans receivable, net (2) $ 8,785,275 1,128,876 9,914,151 8,696,134 1,750,288 10,446,422 (1) Includes $25.1 million and $58.8 million of loans held-for-sale at December 31, 2021 and December 31, 2020, respectively. (2) Includes $62.8 million and $40.9 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at December 31, 2021 and December 31, 2020, respectively. As of December 31, 2021, 2020, and 2019, we serviced loans for others approximating $1.622 billion, $1.516 billion, and $793.1 million, respectively. These loans serviced for others are not our assets and are not included in our financial statements. As of December 31, 2021 and 2020, approximately 41% and 42%, respectively, of our loan portfolio was secured by properties located in Pennsylvania. We do not believe we have significant concentrations of credit risk to any one group of borrowers given our underwriting and collateral requirements. Loans receivable as of December 31, 2021 and 2020 include $3.277 billion and $3.690 billion, respectively, of adjustable rate loans and $6.739 billion and $6.840 billion, respectively, of fixed rate loans. The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the year ended December 31, 2021 (in thousands): Balance as of December 31, 2021 Current Charge-offs Recoveries Balance as of December 31, 2020 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 7,373 2,844 (3,672) 935 7,266 Home equity loans 5,300 1,788 (3,380) 900 5,992 Vehicle loans 15,483 2,754 (4,632) 2,536 14,825 Consumer loans 2,884 3,070 (5,417) 2,360 2,871 Total Personal Banking 31,040 10,456 (17,101) 6,731 30,954 Commercial Banking: Commercial real estate loans 54,141 (15,496) (11,933) 2,189 79,381 Commercial real estate loans - owner occupied 3,883 (5,852) (890) 107 10,518 Commercial loans 13,177 (991) (4,213) 4,807 13,574 Total Commercial Banking 71,201 (22,339) (17,036) 7,103 103,473 Total $ 102,241 (11,883) (34,137) 13,834 134,427 Allowance for Credit Losses - Personal Banking: Residential mortgage loans $ 2 — — — 2 Home equity loans 39 4 — — 35 Total Personal Banking 41 4 — — 37 Commercial Banking: Commercial real estate loans 881 (2,568) — — 3,449 Commercial real estate loans - owner occupied 142 (184) — — 326 Commercial loans 1,394 (1,157) — — 2,551 Total Commercial Banking 2,417 (3,909) — — 6,326 Total off-balance-sheet exposure $ 2,458 (3,905) — — 6,363 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the year ended December 31, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands): Balance as of December 31, 2020 Current Charge-offs Recoveries Initial ACL Cumulative effect of ASU 2016-13* Balance as of December 31, 2019 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 7,266 (3,289) (917) 362 1,095 7,441 2,574 Home equity loans 5,992 (3,357) (608) 766 216 5,786 3,189 Vehicle loans 14,825 11,416 (6,827) 1,867 235 842 7,292 Consumer loans 2,871 4,126 (5,831) 1,542 157 (2,424) 5,301 Total Personal Banking 30,954 8,896 (14,183) 4,537 1,703 11,645 18,356 Commercial Banking: Commercial real estate loans 79,381 58,483 (4,240) 1,287 5,720 2,288 15,843 Commercial real estate loans - owner occupied 10,518 2,588 (83) 27 963 1,278 5,745 Commercial loans 13,574 14,008 (16,212) 1,741 459 (4,419) 17,997 Total Commercial Banking 103,473 75,079 (20,535) 3,055 7,142 (853) 39,585 Total $ 134,427 83,975 (34,718) 7,592 8,845 10,792 57,941 Allowance for Credit Losses - Personal Banking: Residential mortgage loans $ 2 2 — — — — — Home equity loans 35 5 — — — (293) 323 Consumer loans — — — — — (402) 402 Total Personal Banking 37 7 — — — (695) 725 Commercial Banking: Commercial real estate loans 3,449 1,438 — — — 1,934 77 Commercial real estate loans - owner occupied 326 235 — — — 88 3 Commercial loans 2,551 1,459 — — — 923 169 Total Commercial Banking 6,326 3,132 — — — 2,945 249 Total off-balance-sheet exposure $ 6,363 3,139 — — — 2,250 974 * Includes the impact of the initial allowance on PCD loans of $517,000. During the year ended December 31, 2020, we sold $50.0 million of loans that were classified as held-for-investment, for a gain of $1.3 million, which is reported in gain on sale of loans on the Consolidated Statements of Income. The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the year ended December 31, 2019, prior to the adoption of ASU 2016-13 (in thousands): Balance as of December 31, 2019 Current Charge-offs Recoveries Balance as of December 31, 2018 Originated loans Personal Banking: Residential mortgage loans $ 2,463 (1,089) (935) 433 4,054 Home equity loans 2,830 46 (619) 219 3,184 Consumer loans 12,055 10,025 (11,537) 2,487 11,080 Total Personal Banking 17,348 8,982 (13,091) 3,139 18,318 Commercial Banking: Commercial real estate loans 17,292 (5,241) (5,078) 1,232 26,379 Commercial loans 16,799 12,449 (3,237) 533 7,054 Total Commercial Banking 34,091 7,208 (8,315) 1,765 33,433 Total originated loans 51,439 16,190 (21,406) 4,904 51,751 Acquired loans Personal Banking: Residential mortgage loans 111 184 (231) 75 83 Home equity loans 359 322 (502) 191 348 Consumer loans 538 156 (270) 233 419 Total Personal Banking 1,008 662 (1,003) 499 850 Commercial Banking: Commercial real estate loans 4,296 2,092 (389) 597 1,996 Commercial loans 1,198 3,715 (3,414) 280 617 Total Commercial Banking 5,494 5,807 (3,803) 877 2,613 Total acquired loans 6,502 6,469 (4,806) 1,376 3,463 Total $ 57,941 22,659 (26,212) 6,280 55,214 The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2021 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing TDRs Allowance Additional Personal Banking: Residential mortgage loans $ 2,994,620 7,373 10,402 — 6,749 1,442 — Home equity loans 1,319,931 5,300 5,758 — 1,781 718 — Vehicle loans 1,484,231 15,483 3,263 — — — — Consumer loans 354,517 2,884 675 331 — — — Total Personal Banking 6,153,299 31,040 20,098 331 8,530 2,160 — Commercial Banking: Commercial real estate loans 2,625,481 54,141 129,666 — 17,025 2,024 400 Commercial real estate loans - owner occupied 390,003 3,883 1,233 — 159 24 — Commercial loans 847,609 13,177 7,474 — 4,574 609 60 Total Commercial Banking 3,863,093 71,201 138,373 — 21,758 2,657 460 Total $ 10,016,392 102,241 158,471 331 30,288 4,817 460 (1) Includes $17.2 million of nonaccrual TDRs. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2020 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing TDRs Allowance Additional Personal Banking: Residential mortgage loans $ 3,068,121 7,266 15,924 — 8,431 560 — Home equity loans 1,467,736 5,992 9,123 — 2,058 381 26 Vehicle loans 1,152,673 14,825 5,533 1 — — — Consumer loans 355,320 2,871 1,031 584 1 — — Total Personal Banking 6,043,850 30,954 31,611 585 10,490 941 26 Commercial Banking: Commercial real estate loans 2,847,981 79,381 44,092 — 18,430 787 471 Commercial real estate loans - owner occupied 497,908 10,518 3,642 — 761 123 — Commercial loans 1,191,110 13,574 23,487 — 2,454 165 362 Total Commercial Banking 4,536,999 103,473 71,221 — 21,645 1,075 833 Total $ 10,580,849 134,427 102,832 585 32,135 2,016 859 (1) Includes $10.7 million of nonaccrual TDRs. 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, 2021 (in thousands): Nonaccrual December 31, 2021 Nonaccrual loans Nonaccrual Total Nonaccrual Loans 90 days Personal Banking: Residential mortgage loans $ 15,924 10,402 — 10,402 — Home equity loans 9,123 5,551 207 5,758 — Vehicle loans 5,533 3,251 12 3,263 — Consumer loans 1,031 674 1 675 331 Total Personal Banking 31,611 19,878 220 20,098 331 Commercial Banking: Commercial real estate loans 44,092 65,529 64,137 129,666 — Commercial real estate loans - owner occupied 3,642 1,233 — 1,233 — Commercial loans 23,487 3,941 3,533 7,474 — Total Commercial Banking 71,221 70,703 67,670 138,373 — Total $ 102,832 90,581 67,890 158,471 331 During the year ended December 31, 2021, we recognized $803,000 of interest income on nonaccrual and troubled debt restructuring 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, 2020, (in thousands): Nonaccrual loans at January 1, 2020 December 31, 2020 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total Nonaccrual Loans 90 days past and accruing Personal Banking: Residential mortgage loans $ 14,476 15,924 — 15,924 — Home equity loans 6,745 8,871 252 9,123 — Vehicle loans 3,147 5,377 156 5,533 1 Consumer loans 1,079 1,030 1 1,031 584 Total Personal Banking 25,447 31,202 409 31,611 585 Commercial Banking: Commercial real estate loans 18,832 27,079 17,013 44,092 — Commercial real estate loans - owner occupied 16,032 3,642 — 3,642 — Commercial loans 8,559 18,069 5,418 23,487 — Total Commercial Banking 43,423 48,790 22,431 71,221 — Total $ 68,870 79,992 22,840 102,832 585 During the year ended December 31, 2020, we recognized $842,000 of interest income on nonaccrual and troubled debt restructuring loans. The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2021 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 580 — — 580 Home equity loans 99 — — 99 Total Personal Banking 679 — — 679 Commercial Banking: Commercial real estate loans 119,825 1,705 — 121,530 Commercial loans 3,973 1,926 — 5,899 Total Commercial Banking 123,798 3,631 — 127,429 Total $ 124,477 3,631 — 128,108 The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2020 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 1,269 — — 1,269 Home equity loans 99 — — 99 Total Personal Banking 1,368 — — 1,368 Commercial Banking: Commercial real estate loans 79,392 1,997 1,703 83,092 Commercial loans 3,313 197 11,069 14,579 Total Commercial Banking 82,705 2,194 12,772 97,671 Total $ 84,073 2,194 12,772 99,039 Our loan portfolios include loans that have been modified in a TDR, where concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include: extending the note’s maturity date, permitting interest only payments, reducing the interest rate to a rate lower than current market rates for new debt with similar risk, reducing the principal payment, principal forbearance or other actions. These concessions are applicable to all loan segments and classes. Certain TDRs are classified as nonperforming at the time of restructuring and may be returned to performing status after considering the borrower’s sustained repayment performance for a period of at least six months. When we modify loans in a TDR, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, the loan’s observable market price or the current fair value of the collateral, less selling costs, for collateral dependent loans. If we determine that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premiums or discounts), impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, we evaluate all TDRs, including those that have payment defaults, for possible impairment in accordance with ASC 310-10. As a result, loans modified in a TDR may have the financial effect of increasing the specific allowance associated with the loan. Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a TDR subsequently default, we evaluate the loan for possible further impairment. The allowance may be increased, adjustments may be made in the allocation of the allowance, partial charge-offs may be taken to further write-down the carrying value of the loan, or the loan may be charged-off completely. In March 2020 and August 2020, joint statements were issued by federal and state regulatory agencies, after consultation with the FASB, to clarify that short-term loan modifications are not TDRs if made on a good-faith basis in response to COVID-19 to borrowers who were current prior to any relief. Under this guidance, six months is provided as an example of short-term, and current is defined as less than 30 days past due at the time the modification program is implemented. The guidance also provides that these modified loans generally will not be classified as nonaccrual during the term of the modification. For borrowers who are 30 days or more past due when enrolling in a loan modification program related to the COVID-19 pandemic, we evaluate the loan modifications under our existing TDR framework, and where such a loan modification would result in a concession to a borrower experiencing financial difficulty, the loan will be accounted for as a TDR and will generally not accrue interest. The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands): For the years ended December 31, 2021 2020 Number of Amount Number of Amount Beginning TDR balance: 170 $ 32,135 176 $ 31,999 New TDRs 9 7,253 14 1,497 Re-modified TDRs 9 7,370 5 9,693 Net paydowns — (3,420) — (9,806) Charge-offs: Residential mortgage loans — — — — Home equity loans 1 (29) 1 (10) Vehicle loans — — — — Commercial real estate loans 2 (53) — — Commercial real estate loans - owner occupied 1 (105) — — Commercial loans 6 (170) — — Paid-off loans: Residential mortgage loans 10 (1,216) 2 (330) Home equity loans 6 (147) 5 (44) Vehicle loans — — — — Commercial real estate loans 11 (3,064) 3 (321) Commercial real estate loans - owner occupied 3 (198) 2 (324) Commercial loans 5 (698) 7 (219) Ending TDR balance: 134 $ 30,288 170 $ 32,135 Accruing TDRs $ 13,072 $ 21,431 Nonaccrual TDRs 17,216 10,704 The following tables provide information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands): For the year ended December 31, 2021 Number of Recorded Current Current Personal Banking: Residential mortgage loans 1 $ 125 114 15 Home equity loans 3 155 34 34 Total Personal Banking 4 280 148 49 Commercial Banking: Commercial real estate loans 8 12,006 10,572 1,453 Commercial loans 6 4,147 3,903 451 Total Commercial Banking 14 16,153 14,475 1,904 Total 18 $ 16,433 14,623 1,953 For the year ended December 31, 2020 Number of Recorded Current Current Personal Banking: Residential mortgage loans 1 $ 90 88 5 Home equity loans 2 86 79 9 Total Personal Banking 3 176 167 14 Commercial Banking: Commercial real estate loans 9 7,365 7,615 311 Commercial real estate loans - owner occupied 1 58 48 8 Commercial loans 5 2,944 408 40 Total Commercial Banking 15 10,367 8,071 359 Total 18 $ 10,543 8,238 373 For the year ended December 31, 2019 Number of Recorded Current Current Personal Banking: Residential mortgage loans 3 $ 297 297 19 Home equity loans 5 171 165 12 Total Personal Banking 8 468 462 31 Commercial Banking: Commercial real estate loans 10 8,333 7,369 613 Commercial loans 4 221 192 21 Total Commercial Banking 14 8,554 7,561 634 Total 22 $ 9,022 8,023 665 The following table provides information as of December 31, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2021 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ 114 — — — 114 Home equity loans 3 — 30 4 — 34 Total Personal Banking 4 114 30 4 — 148 Commercial Banking: Commercial real estate loans 8 2,077 — 8,424 71 10,572 Commercial loans 6 171 — 3,732 — 3,903 Total Commercial Banking 14 2,248 — 12,156 71 14,475 Total 18 $ 2,362 30 12,160 71 14,623 The following table provides information as of December 31, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2020 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — 88 — 88 Home equity loans 2 65 — 14 — 79 Total Personal Banking 3 65 — 102 — 167 Commercial Banking: Commercial real estate loans 9 — — 7,335 280 7,615 Commercial real estate loans - owner occupied 1 — — 48 — 48 Commercial loans 5 — 111 217 80 408 Total Commercial Banking 15 — 111 7,600 360 8,071 Total 18 $ 65 111 7,702 360 8,238 The following table provides information as of December 31, 2019 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2019 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 3 $ — — 297 — 297 Home equity loans 5 109 — 56 — 165 Total Personal Banking 8 109 — 353 — 462 Commercial Banking: Commercial real estate loans 10 — 2,541 4,828 — 7,369 Commercial loans 4 37 — 155 — 192 Total Commercial Banking 14 37 2,541 4,983 — 7,561 Total 22 $ 146 2,541 5,336 — 8,023 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2021 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ 114 — — — 114 Home equity loans 1 — — — — — Total Personal Banking 2 114 — — — 114 Commercial Banking: Commercial real estate loans 7 2,077 — 5,108 71 7,256 Total Commercial Banking 7 2,077 — 5,108 71 7,256 Total 9 $ 2,191 — 5,108 71 7,370 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2020 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 3 — — 6,652 — 6,652 Commercial real estate loans - owner occupied 1 48 48 Commercial loans 1 — — — 80 80 Total Commercial Banking 5 — — 6,700 80 6,780 Total 5 $ — — 6,700 80 6,780 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2019 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 7 — 219 4,448 — 4,667 Commercial loans 1 — — 38 — 38 Total Commercial Banking 8 — 219 4,486 — 4,705 Total 8 $ — 219 4,486 — 4,705 The following table provides information related to troubled debt restructurings modified within the previous twelve months of December 31, 2021 that subsequently defaulted: Number of Recorded Current Current Commercial Banking: Commercial real estate loans 1 $ 4,167 3,823 — Total Commercial Banking 1 4,167 3,823 — Total 1 $ 4,167 3,823 — No TDRs modified within the previous twelve months of December 31, 2020 or December 31, 2019 subsequently defaulted. The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2021 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 20,567 5,433 7,641 33,641 2,960,979 2,994,620 — Home equity loans 3,153 949 4,262 8,364 1,311,567 1,319,931 — Vehicle loans 5,331 1,487 1,635 8,453 1,475,778 1,484,231 — Consumer loans 1,205 519 765 2,489 352,028 354,517 331 Total Personal Banking 30,256 8,388 14,303 52,947 6,100,352 6,153,299 331 Commercial Banking: Commercial real estate loans 16,938 699 23,489 41,126 2,584,355 2,625,481 — Commercial real estate loans - owner occupied 127 70 574 771 389,232 390,003 — Commercial loans 193 727 1,105 2,025 845,584 847,609 — Total Commercial Banking 17,258 1,496 25,168 43,922 3,819,171 3,863,093 — Total loans $ 47,514 9,884 39,471 96,869 9,919,523 10,016,392 331 The following table provides information related to the amortized cost basis loan payment delinquencies at December 31, 2020 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 28,797 5,083 14,489 48,369 3,019,752 3,068,121 — Home equity loans 4,763 1,656 8,441 14,860 1,452,876 1,467,736 — Vehicle loans 7,707 1,776 4,599 14,082 1,138,592 1,152,674 1 Consumer loans 2,867 966 1,459 5,292 350,027 355,319 584 Total Personal Banking 44,134 9,481 28,988 82,603 5,961,247 6,043,850 585 Commercial Banking: Commercial real estate loans 6,692 1,615 23,307 31,614 2,816,366 2,847,980 — Commercial real estate loans - owner occupied 4,231 — 1,980 6,211 491,698 497,909 — Commercial loans 6,405 864 7,325 14,594 1,176,516 1,191,110 — Total Commercial Banking 17,328 2,479 32,612 52,419 4,484,580 4,536,999 — Total loans $ 61,462 11,960 61,600 135,022 10,445,827 10,580,849 585 Credit Quality Indicators: For Commercial Banking loans 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 greater than 90 days 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, loans classified as TDRs, or homogenous retail loans that are greater than 180 days past due from the requirement 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. Based on the most recent analysis performed, the amortized cost basis by risk category of loans by class of loans by origination year is as follows as of December 31, 2021 (in thousands): 2021 2020 2019 2018 2017 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 644,862 602,429 304,275 156,639 171,240 1,098,635 — — 2,978,080 Substandard 138 489 377 538 882 14,116 — — 16,540 Total residential mortgage loans 645,000 602,918 304,652 157,177 172,122 1,112,751 — — 2,994,620 Home equity loans Pass 150,847 210,224 138,661 65,011 61,692 209,959 435,660 40,766 1,312,820 Substandard — — 441 60 455 3,820 1,275 1,060 7,111 Total home equity loans 150,847 210,224 139,102 65,071 62,147 213,779 436,935 41,826 1,319,931 Vehicle loans Pass 801,084 292,804 205,653 119,304 34,546 27,576 — — 1,480,967 Substandard 387 365 1,141 745 379 247 — — 3,264 Total vehicle loans 801,471 293,169 206,794 120,049 34,925 27,823 — — 1,484,231 Consumer loans Pass 117,856 81,266 47,195 20,595 9,794 12,202 63,025 1,578 353,511 Substandard 213 161 105 64 26 50 357 30 1,006 Total consumer loans 118,069 81,427 47,300 20,659 9,820 12,252 63,382 1,608 354,517 Total Personal Banking 1,715,387 1,187,738 697,848 362,956 279,014 1,366,605 500,317 43,434 6,153,299 Business Banking: Commercial real estate loans Pass 306,689 433,219 335,541 263,524 221,450 683,537 26,288 10,179 2,280,427 Special Mention 803 1,808 52,513 3,296 1,394 8,529 729 23 69,095 Substandard — 34,153 44,712 46,045 56,077 89,311 492 5,169 275,959 Total commercial real estate loans 307,492 469,180 432,766 312,865 278,921 781,377 27,509 15,371 2,625,481 Commercial real estate loans - owner occupied Pass 69,084 19,452 51,997 60,824 57,676 94,687 2,822 2,707 359,249 Special Mention — — — 769 1,959 1,444 856 — 5,028 Substandard — — 3,575 2,887 7,840 10,602 — 822 25,726 Total commercial real estate loans - owner occupied 69,084 19,452 55,572 64,480 67,475 106,733 3,678 3,529 390,003 Commercial loans Pass 224,367 110,171 73,276 27,668 20,748 76,987 262,805 12,301 808,323 Special Mention 197 661 812 1,195 50 581 2,234 — 5,730 Substandard 329 4,767 5,102 4,437 1,529 2,116 6,667 8,609 33,556 Total commercial loans 224,893 115,599 79,190 33,300 22,327 79,684 271,706 20,910 847,609 Total Business Banking 601,469 604,231 567,528 410,645 368,723 967,794 302,893 39,810 3,863,093 Total loans $ 2,316,856 1,791,969 1,265,376 773,601 647,737 2,334,399 803,210 83,244 10,016,392 For the year ended December 31, 2021, $27.3 million of revolving loans were converted to term loans. Based on the most recent analysis performed, the amortized cost basis by risk category of loans by class of loans by origination year is as follows as of December 31, 2020 (in thousands): 2020 2019 2018 2017 2016 Prior Revolving loans Revolving loans converted to term loans Total loans receivable Personal Banking: Residential mortgage loans Pass $ 641,963 418,057 229,477 247,426 215,893 1,289,728 — — 3,042,544 Substandard — 68 1,293 1,674 1,091 21,451 — — 25,577 Total residential mortgage loans 641,963 418,125 230,770 249,100 216,984 1,311,179 — — 3,068,121 Home equity loans Pass 273,076 193,439 94,757 87,717 81,212 219,061 465,453 40,759 1,455,474 Substandard — 210 318 281 876 5,158 3,509 1,910 12,262 Total home equity loans 273,076 193,649 95,075 87,998 82,088 224,219 468,962 42,669 1,467,736 Vehicle loans Pass 448,746 352,661 218,372 70,122 31,197 24,791 — — 1,145,889 Substandard 343 1,958 2,087 1,210 667 519 — — 6,784 Total vehicle loans 449,089 354,619 220,459 71,332 31,864 25,310 — — 1,152,673 Consumer loans Pass 128,809 83,419 35,183 17,439 7,848 11,757 66,965 1,695 353,115 Substandard 133 399 139 192 36 619 686 1 2,205 Total consumer loans 128,942 83,818 35,322 17,631 7,884 12,376 67,651 1,696 355,320 Total Personal Banking 1,493,070 1,050,211 581,626 426,061 338,820 1,573,084 536,613 44,365 6,043,850 Business Banking: Commercial real estate loans Pass 417,390 473,115 316,045 264,702 195,168 709,459 36,980 29,755 2,442,614 Special Mention 584 3,381 20,180 24,675 15,424 15,817 597 3,048 83,706 Substandard 7,426 4,007 57,694 56,991 24,056 140,147 2,240 29,100 321,661 Total commercial real estate loans 425,400 480,503 393,919 346,368 234,648 865,423 39,817 61,903 2,847,981 Commercial real estate loans - owner occupied Pass 24,895 67,162 87,497 71,626 46,760 100,081 4,422 7,648 410,091 Special Mention — 4,371 4,514 3,643 4,276 3,689 3,822 — 24,315 Substandard — 21,627 1,903 12,898 4,013 21,777 874 410 63,502 Total commercial real estate loans - owner occupied 24,895 93,160 93,914 88,167 55,049 125,547 9,118 8,058 497,908 Commercial loans Pass 479,436 99,877 50,915 51,858 58,597 49,178 286,467 16,170 1,092,498 Special Mention 5,828 2,751 5,579 4,588 162 190 16,512 5,668 41,278 Substandard 1,660 3,343 2,932 2,016 2,266 3,003 27,988 14,126 57,334 Total commercial l

Accrued Interest Receivable

Accrued Interest Receivable	12 Months Ended
	Dec. 31, 2021
Interest Receivable and Other Assets [Abstract]
Accrued Interest Receivable	Accrued Interest Receivable Accrued interest receivable as of December 31, 2021 and 2020 is presented in the following table: December 31, 2021 2020 Investment securities $ 1,591 1,660 FHLB dividends 89 197 Mortgage-backed securities 2,589 2,031 Loans receivable 21,330 31,666 $ 25,599 35,554

FHLB Stock

FHLB Stock	12 Months Ended
	Dec. 31, 2021
Federal Home Loan Banks [Abstract]
FHLB Stock	FHLB Stock Northwest Bank is a member of the FHLB of Pittsburgh and FHLB of Indianapolis. As a member of the FHLB of Pittsburgh, we are required to maintain an investment in the capital stock of the FHLB of Pittsburgh in accordance with their 2015 Capital Plan, at cost, in two subclasses based on the following ranges: Membership stock purchase (Subclass B-1) ranging from 0.05% to 1.0% of the member asset value as defined by the FHLB, currently at 0.10%; and Activity-based stock purchase (Subclass B-2) ranging from 2.0% to 6.0% of outstanding advances, currently at 4.0%; 0.0% to 6.0% of acquired member assets, currently at 4.0%; 0.0% to 4.0% of certain letters of credit, currently at 0.75%; and 0.0% to 6.0% of outstanding advance commitments settling more than 30 days after trade, currently at 0.0%. As a member of the FHLB of Indianapolis, we are required to maintain an investment in the capital stock of the FHLB of Indianapolis in accordance with their capital plan that became effective on September 26, 2020. This plan requires the Company to invest in two subclasses based on the following ranges: Membership stock requirements (B-1 stock) ranging from 0.01% to 0.50% of the member asset value as defined by the FHLB, currently at 0.10%; and Activity-based stock requirements (B-2 stock) ranging from 1.0% to 6.0% of advances, currently at 4.5%; 1.0% to 6.0% for lines of credit, currently at 4.5%; 0.10% to 6.0% for letters of credit, currently at 0.10%; 1.0% to 6.0% of derivative contracts, currently at 4.5%; 0.0% to 6.0% for the mandatory Mortgage Purchase Program (“MPP”), currently at 0.0%; 0.0% to 6.0% for the optional MPP, currently at 4.5%; and 1.0% to 6.0% for Community Investment Program (“CIP”) advances, currently at 4.5%. Our investment in the capital stock of the FHLB of Pittsburgh at December 31, 2021 and December 31, 2020 was $10.4 million and $8.6 million, respectively. In addition, our investment of capital stock of the FHLB of Indianapolis at December 31, 2021 was $3.8 million and $13.1 million at December 31, 2020. We received dividends on capital stock during the years ended December 31, 2021 and 2020 of $407,000 and $981,000, respectively. Future dividends may be established at different rates for the two subclasses of capital stock.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment Premises and equipment at December 31, 2021 and 2020 are summarized by major classification in the following table: December 31, 2021 2020 Land and land improvements $ 25,449 26,878 Office buildings and improvements 152,654 154,439 Furniture, fixtures and equipment 138,242 134,821 Leasehold improvements 20,288 18,845 Total, at cost 336,633 334,983 Less accumulated depreciation and amortization (180,109) (173,445) Premises and equipment, net $ 156,524 161,538 Depreciation and amortization expense for the years ended December 31, 2021, 2020 and 2019 was $12.1 million, $11.9 million and $11.7 million, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2021
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 for the years ended December 31, 2021 and 2020: December 31, 2021 2020 Amortizable intangible assets: Core deposit intangibles - gross $ 74,899 71,182 Acquisitions — 3,717 Less: accumulated amortization (62,158) (56,896) Core deposit intangibles - net $ 12,741 18,003 Customer and Contract intangible assets - gross $ 12,775 12,775 Customer list intangible assets disposed of due to sale of insurance business (1,547) — Less: accumulated amortization (11,133) (10,842) Customer and Contract intangible assets - net 95 1,933 Total intangible assets - net $ 12,836 19,936 The following information shows the actual aggregate amortization expense for the years ended December 31, 2021, 2020 and 2019 as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for each of the five succeeding fiscal years: For the year ended December 31, 2019 $ 6,543 For the year ended December 31, 2020 6,856 For the year ended December 31, 2021 5,553 For the year ending December 31, 2022 4,277 For the year ending December 31, 2023 3,270 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 The following table provides information for the changes in the carrying amount of goodwill: Total Balance at December 31, 2019 $ 346,103 Goodwill acquired 36,176 Balance at December 31, 2020 382,279 Purchase accounting adjustment 77 Goodwill disposed of due to sale of insurance business (1,359) Balance at December 31, 2021 $ 380,997 We have determined that goodwill is not impaired as of December 31, 2021 and 2020. There were no events or changes in circumstances that would cause us to update that goodwill impairment test as of June 30, 2021 and 2020.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Deposits	Deposits Deposit balances at December 31, 2021 and 2020 are shown in the table below: December 31, 2021 2020 Noninterest-bearing demand deposits $ 3,099,526 2,716,224 Interest-bearing demand deposits 2,940,442 2,755,950 Money market deposit accounts 2,629,882 2,437,539 Savings deposits 2,303,760 2,047,424 Time deposits 1,327,555 1,642,096 Total deposits $ 12,301,165 11,599,233 The aggregate amount of time deposits with a minimum denomination of $100,000 at December 31, 2021 and 2020 was $439.5 million and $578.5 million, respectively. Generally, deposits in excess of $250,000 are not federally insured. At December 31, 2021 and 2020, we had $4.194 billion and $3.744 billion of deposits in accounts exceeding $250,000, respectively. The following table summarizes the contractual maturity of time deposits at December 31, 2021 and 2020: December 31, 2021 2020 Due within 12 months $ 890,101 990,769 Due between 12 and 24 months 288,284 380,466 Due between 24 and 36 months 80,251 164,583 Due between 36 and 48 months 33,843 64,700 Due between 48 and 60 months 29,692 36,098 After 60 months 5,384 5,480 Total time deposits $ 1,327,555 1,642,096 The following table summarizes the interest expense incurred on the respective deposits for the years ended December 31, 2021, 2020 and 2019: Years ended December 31, 2021 2020 2019 Interest-bearing demand deposits $ 1,660 3,358 6,012 Money market deposit accounts 2,597 7,021 13,010 Savings deposits 2,413 2,614 3,115 Time deposits 12,452 22,903 27,079 Total interest expense on deposits $ 19,122 35,896 49,216

Borrowed Funds

Borrowed Funds	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds (a) Borrowings Borrowed funds at December 31, 2021 and 2020 are presented in the following table: December 31, 2021 2020 Amount Average rate Amount Average rate Term notes payable to the FHLB: Payable to the FHLB of Indianapolis acquired from MutualBank $ — — % $ 22,054 1.92 % Total term notes payable to the FHLB — 22,054 Collateralized borrowings, due within one year 139,093 0.19 % 137,661 0.19 % Total borrowed funds $ 139,093 $ 159,715 Borrowings from the Federal Home Loan Banks (“FHLB”) of Pittsburgh and Indianapolis, if any, are secured by our residential first mortgage and other qualifying loans. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. During the year ended December 31, 2021, $22.0 million of term notes payable to the FHLB of Indianapolis matured. The revolving line of credit with the FHLB of Pittsburgh carries a commitment of $250.0 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. The revolving line of credit had no balance as of December 31, 2021 and December 31, 2020. At December 31, 2021 and December 31, 2020, collateralized borrowings due within one year were $139.1 million and $137.7 million, respectively. These borrowings are collateralized by cash or various securities held in safekeeping by the FHLB. The market value of these securities exceeds the value of the collateralized borrowings . The average amount of collateralized borrowings outstanding in the years ended December 31, 2021, 2020 and 2019 was $132.1 million, $122.8 million and $91.1 million, respectively. The maximum amount of collateralized borrowings outstanding during the years ended December 31, 2021, 2020 and 2019 was $139.6 million, $150.6 million and $101.1 million, respectively. On September 9, 2020, the Company issued $125.0 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 SOFR plus 3.89% payable quarterly in arrears commencing on December 15, 2025. The subordinated debt issuance costs of approximately $1.8 million are being amortized over five years on a straight-line basis into interest expense. At December 31, 2021 and December 31, 2020, subordinated debentures, net of issuance costs, were $123.6 million and $123.3 million, respectively. (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 December 31, 2021 and 2020. Maturity date Interest rate Capital debt December 31, 2021 2020 Northwest Bancorp Capital Trust III December 30, 2035 3-month LIBOR plus 1.38% $ 50,000 51,547 51,547 Northwest Bancorp Statutory Trust IV December 15, 2035 3-month LIBOR plus 1.38% 50,000 51,547 51,547 LNB Trust II June 15, 2037 3-month LIBOR plus 1.48% 7,875 8,119 8,119 Union National Capital Trust I (1) January 23, 2034 3-month LIBOR plus 2.85% 8,000 7,950 7,925 Union National Capital Trust II (1) November 23, 2034 3-month LIBOR plus 2.00% 3,000 2,741 2,714 MFBC Statutory Trust I (1) September 15, 2035 3-month LIBOR plus 1.70% 5,000 3,580 3,476 Universal Preferred Trust (1) October 7, 2035 3-month LIBOR plus 1.69% 5,000 3,570 3,466 Total $ 128,875 129,054 128,794 (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. 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 trust to become subject to federal income tax or to certain other taxes or governmental charges; • the trust to register as an investment company; or • the preferred securities do not 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 approval(s).

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Total income tax was allocated for the years ended December 31, 2021, 2020 and 2019 as follows: Years ended December 31, 2021 2020 2019 Income tax expense $ 46,801 17,672 30,679 Shareholders’ equity for unrealized gain/(loss) on securities available-for-sale (10,425) 5,061 3,992 Shareholders’ equity for pension adjustment 9,659 (3,774) (2,859) Unallocated income tax $ 46,035 18,959 31,812 Income tax expense applicable to income before taxes consists of: Years ended December 31, 2021 2020 2019 Current $ 34,487 25,756 27,903 Deferred 12,314 (8,084) 2,776 Total income tax expense $ 46,801 17,672 30,679 A reconciliation of the expected federal statutory income tax rate to the effective rate, expressed as a percentage of pretax income for the years ended December 31, 2021, 2020 and 2019, is as follows: Years ended December 31, 2021 2020 2019 Expected tax rate 21.0 % 21.0 % 21.0 % Tax-exempt interest income (0.9) % (1.7) % (0.8) % State income tax, net of federal benefit 4.5 % 2.2 % 3.7 % Bank-owned life insurance (0.6) % (1.1) % (0.6) % Stock-based compensation (0.1) % 0.2 % (0.6) % Dividends on stock plans (0.4) % (0.9) % (0.6) % Low income housing and historic tax credits (0.2) % (0.9) % (0.5) % Other — % 0.3 % 0.1 % Effective tax rate 23.3 % 19.1 % 21.7 % The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2021 and 2020 are presented below: December 31, 2021 2020 Deferred tax assets: Deferred compensation expense $ 4,230 4,272 Bad debts 23,273 30,418 Other reserves 1,333 2,358 Accrued post-retirement benefit cost 900 778 Stock benefit plans 623 820 Pension and post-retirement benefits 9,747 19,405 Unrealized loss on the fair value of securities available-for-sale 4,093 — Deferred income 341 540 Lease liability 12,958 11,713 Purchase accounting 432 412 Net operating loss 2,140 2,800 Other 922 1,338 Total deferred tax assets 60,992 74,854 Deferred tax liabilities: Pension expense 6,993 6,198 Intangible assets 16,543 15,419 Mortgage servicing rights 2,278 1,831 Fixed assets 5,287 4,740 Net deferred loan costs 2,338 1,548 Right of use asset 12,322 10,844 Unrealized gain on fair value of securities available-for-sale — 6,332 Interest rate derivatives 341 1,268 Other 2,503 2,670 Total deferred tax liabilities 48,605 50,850 Net deferred tax asset $ 12,387 24,004 We have $4.3 million of federal net operating loss carryovers subject to the annual limitation under Internal Revenue Code Section 382 at December 31, 2021. The carryovers begin to expire in 2029 and are expected to be fully realized. We have $38.1 million of Indiana net operating loss carryovers subject to annual limitation as Indiana conforms to the Internal Revenue Code Section 382 at December 31, 2021. The carryovers begin to expire in 2025. Due to limitation, we do not expect to realize $7.6 million of the Indiana net operating loss carryover. This is netted against the net operating loss deferred tax asset in the preceding table. We recorded a valuation allowance against state deferred tax assets of a Northwest subsidiary since the subsidiary is not expected to utilize its deferred tax assets in the foreseeable future. This valuation allowance is netted against other deferred tax assets in the preceding table. Other than stated above, we have determined that no valuation allowance is necessary for the deferred tax assets because it is more likely than not that these assets will be realized through future reversals of existing temporary differences and through future taxable income. We will continue to review the criteria related to the recognition of deferred tax assets on a regular basis. We utilize a comprehensive approach to recognize, measure, present and disclose in our financial statements uncertain tax positions that the company has taken or expects to take on a tax return. We recognize interest accrued and penalties (if any) related to unrecognized tax benefits in income tax expense. The accrual for interest and penalties was not material for all years presented. The following table presents changes in unrecognized tax benefits at December 31, 2021, 2020 and 2019: Year ended December 31, 2021 2020 2019 Unrecognized tax benefits: Balance, beginning of year $ 331 — — Increases related to prior year tax positions 37 336 — Decreases related to prior year tax positions (173) (5) — Increases related to current year tax positions 46 — — Settlements — — — Lapse of statute — — — Balance, end of year $ 241 $ 331 — It is reasonably possible that over the next twelve months the amount of unrecognized tax benefits may change from the reevaluation of uncertain tax positions arising in examinations, in appeals, or in the courts, or from the closure of tax statutes. We do not expect any significant changes in unrecognized tax benefits during the next twelve months.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2021
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Retained earnings are partially restricted in connection with regulations related to the insurance of deposit accounts, which requires Northwest to maintain certain statutory reserves. Northwest may not pay dividends on or repurchase any of its common stock if the effect thereof would reduce retained earnings below the level of adequate capitalization as defined by federal and state regulators. In tax years prior to fiscal 1997, Northwest was permitted, under the Internal Revenue Code (“IRC”), to deduct an annual addition to a reserve for bad debts in determining taxable income, subject to certain limitations. Bad debt deductions for income tax purposes are included in taxable income of later years only if the bad debt reserve is used subsequently for purposes other than to absorb bad debt losses. Because Northwest does not intend to use the reserve for purposes other than to absorb losses, no deferred income taxes have been provided prior to fiscal 1987. Retained earnings at December 31, 2021 and 2020 include approximately $39.1 million representing such bad debt deductions for which no deferred income taxes have been provided.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2021
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 reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the Company. During the year ended December 31, 2021, 2,146,897 stock options were not included in the computation of diluted earnings per share because the stock options’ exercise price was more than the average market price of the common shares of $13.80. During the year ended December 31, 2020, 4,677,841 stock options were not included in the computation of diluted earnings per share because the stock options’ exercise price was more than the average market price of the common shares of $11.54. During the year ended December 31, 2019, all stock options outstanding were included in the computation of diluted earnings per share because the stock options’ exercise price was less than the average market price of the common shares of $17.07. The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2021, 2020 and 2019. Years ended December 31, 2021 2020 2019 Net income $ 154,323 74,854 110,432 Less: Dividends and undistributed earnings allocated to participating securities 1,010 — — Net income available to common shareholders $ 153,313 74,854 110,432 Weighted average common shares outstanding (1) 126,181,586 120,244,474 104,878,774 Add: Participating shares outstanding 828,251 — 960,375 Total weighted average common shares and dilutive potential shares (1) 127,009,837 120,244,474 105,839,149 Basic earnings per share (1) $ 1.22 0.62 1.05 Diluted earnings per share (1) $ 1.21 0.62 1.04 (1) Not in thousands.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans (a) Pension Plans We maintain noncontributory defined benefit pension plans covering substantially all employees and members of our board of directors. Retirement benefits are based on certain compensation levels, age, and length of service. Contributions are based on an actuarially determined amount to fund not only benefits attributed to service to date but also for those expected to be earned in the future. In addition, we have an unfunded Supplemental Executive Retirement Plan (“SERP”) to compensate those executive participants eligible for the defined benefit pension plan whose benefits are limited by Section 415 of the IRC. We also sponsor a retirement savings plan in which substantially all employees participate. We provide a matching contribution of 100% of each employee’s contribution to a maximum of 4% of the employee’s compensation. Effective August 1, 2020, the Pension Plan was amended to include a soft freeze. The soft freeze will allow those employees in an eligible position that were hired, rehired, or acquired on or before July 31, 2020, to continue to vest and accrue additional benefits for each year they are credited with 1,000 hours or more. Employees that are hired, rehired, acquired, or transfer to an eligible job classification on or after August 1, 2020 are not eligible to participate in the Pension Plan. Total expense for all retirement plans, including defined benefit pension plans, was approximately $10.1 million, $8.2 million and $6.7 million, for the years ended December 31, 2021, 2020 and 2019, respectively. Components of net periodic pension cost and other amounts recognized in other comprehensive income: The following table sets forth components of net periodic pension cost and other amounts recognized in other comprehensive income for the years ended December 31, 2021, 2020 and 2019. Years ended December 31, 2021 2020 2019 Defined benefit pension plan: Service cost $ 11,440 8,391 5,949 Interest cost 6,070 6,855 7,353 Expected return on plan assets (13,859) (12,362) (11,037) Amortization of prior service cost (2,322) (2,322) (2,322) Amortization of the net loss 4,156 3,695 3,423 Net periodic pension cost, defined benefit pension plans 5,485 4,257 3,366 Other changes in defined benefit pension plan recognized in other comprehensive income: Net (gain)/loss (36,552) 11,521 8,235 Amortization of prior service cost 2,322 2,323 2,323 Total recognized in other comprehensive income (34,230) 13,844 10,558 Total recognized in net periodic pension cost and other comprehensive income $ (28,745) 18,101 13,924 The estimated net loss and prior service credit for the defined benefit pension plan that will be amortized from accumulated other comprehensive income into net periodic cost ending December 31, 2022 is $1.5 million and $4.0 million, respectively. The following table sets forth information for the defined benefit pension plans’ funded status at December 31, 2021 and 2020: December 31, 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 258,589 222,497 Service cost 11,440 8,391 Interest cost 6,070 6,855 Actuarial (gain)/loss (19,834) 29,084 Benefits paid (9,331) (8,238) Benefit obligation at end of year 246,934 258,589 Change in plan assets: Fair value of plan assets at beginning of year $ 216,872 193,541 Actual return on plan assets 26,421 26,228 Employer contributions 5,476 5,341 Benefits paid (9,331) (8,238) Fair value of plan assets at end of period 239,438 216,872 Funded status at end of year $ (7,496) (41,717) The following table sets forth the assumptions used to develop the net periodic pension cost: Years ended December 31, 2021 2020 2019 Discount rate 2.39 % 3.14 % 4.15 % Expected long-term rate of return on assets 6.50 % 6.50 % 7.00 % Rate of increase in compensation levels 3.00 % 3.00 % 3.00 % The following table sets forth the assumptions used to determine benefit obligations at the end of each period: Years ended December 31, 2021 2020 2019 Discount rate 2.75 % 2.39 % 3.14 % Expected long-term rate of return on assets 6.50 % 6.50 % 6.50 % Rate of increase in compensation levels 3.00 % 3.00 % 3.00 % The expected long-term rate of return on assets is based on the expected return of each of the asset categories, weighted based on the median of the target allocation for each category. We use the FTSE (previously Citigroup) Pension Liability Index rates matching the duration of our benefit payments as of the measurement date to determine the discount rate. The accumulated benefit obligation for the funded defined benefit pension plan was $243.6 million, $254.2 million, and $217.3 million at December 31, 2021, 2020 and 2019, respectively. The accumulated benefit obligation for all unfunded defined benefit plans was $3.3 million, $4.4 million, and $5.2 million at December 31, 2021, 2020 and 2019, respectively. The following table sets forth certain information related to our pension plans: December 31, 2021 2020 Projected benefit obligation $ 246,934 258,589 Accumulated benefit obligation 246,934 258,589 Fair value of plan assets 239,438 216,872 We anticipate making a contribution to our defined benefit pension plan of $2.0 million to $4.0 million during the year ending December 31, 2022. The investment policy as established by the Plan Administrative Committee, to be followed by the Trustee, is to invest assets based on the target allocations shown in the table below. To meet target allocation ranges set forth by the Plan Administrative Committee, periodically, the assets are reallocated by the Trustee. The investment policy is reviewed periodically to determine if the policy should be changed. Pension assets are conservatively invested with the goal of providing market or better returns with below market risks. Assets are invested in a balanced portfolio composed primarily of equities, fixed income, and cash or cash equivalent investments. The Trustee tries to maintain an approximate asset mix position of 20% to 50% bonds and 30% to 60% equities. A maximum of 10% may be invested in any one stock, including the stock of Northwest Bancshares, Inc. The objective of holding equity securities is to provide capital appreciation consistent with the ownership of the common stocks of medium to large companies. Acceptable bond investments are direct or agency obligations of the U.S. Government or investment grade corporate bonds. The average maturity of the bond portfolio shall not exceed ten years. The following table sets forth the weighted average asset allocation of defined benefit plans: Target December 31, allocation 2021 2020 Debt securities 20 – 50% 25 % 22 % Equity securities 30 – 60% 66 % 67 % Other 5 – 50% 9 % 11 % Total 100 % 100 % All of the assets held by the defined benefit pension plan are measured and recorded at estimated fair value on our balance sheet on a recurring basis as Level 1 assets, as defined by the fair value hierarchy defined in Note 16. The following tables sets forth the pension plan assets as of December 31, 2021 and 2020. December 31, 2021 2020 Defined benefit pension assets: Common stock $ 61,968 52,019 Mutual funds 154,676 140,746 Money market funds 11,946 15,068 Other 10,672 8,879 Total defined benefit pension plan assets (1) $ 239,262 216,712 (1) The defined benefit pension plan statement of net assets also includes accrued interest and dividends resulting in net assets available for benefits of $239.4 million and $216.9 million, respectfully. The benefits expected to be paid in each year from 2022 to 2026 are $8.0 million, $8.8 million, $8.9 million, $9.4 million and $9.8 million, respectively. The aggregate benefits expected to be paid in the five years from 2027 to 2031 are $56.7 million. The expected benefits to be paid are based on the same assumptions used to measure our benefit obligations at December 31, 2021 and include estimated future employee service. (b) Post-retirement Healthcare Plan In addition to pension benefits, we provide post-retirement healthcare benefits for certain employees who were employed as of October 1, 1993 and were at least 55 years of age on that date. We use the accrual method of accounting for post-retirement benefits other than pensions. Components of net periodic benefit cost and other amounts recognized in other comprehensive income: The following table sets forth the net periodic benefit cost for the post-retirement healthcare benefits plan for the years ended December 31, 2021, 2020 and 2019: Years ended December 31, 2021 2020 2019 Interest cost $ 42 26 52 Amortization of net loss 14 18 68 Net period benefit cost $ 56 44 120 The following table sets forth other changes in the post-retirement healthcare plan’s plan assets and benefit obligations recognized in other comprehensive income: Years ended December 31, 2021 2020 2019 Net gain $ (66) (51) (475) Total recognized in other comprehensive income $ (66) (51) (475) Total recognized in net periodic benefit cost and other comprehensive loss $ (10) (7) (355) The estimated net loss for the post-retirement healthcare benefit plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the year ending December 31, 2022 is $6,000. The following table sets forth the funded status of the post-retirement healthcare benefit plan at December 31, 2021 and 2020: December 31, 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 1,807 889 Interest cost 42 26 Actuarial gain (53) (34) Benefits paid (236) (111) Defined benefit plan acquired from MutualBank — 1,037 Benefit obligation at end of year $ 1,560 1,807 Change in plan assets: Employer contributions $ 236 111 Benefits paid (236) (111) Funded status at year end $ (1,560) (1,807) The assumptions used to develop the preceding information for post-retirement healthcare benefits are as follows: Years ended December 31, 2021 2020 2019 Discount rate 2.39 % 3.14 % 4.15 % Monthly cost of healthcare insurance per beneficiary (1) $ 343 370 391 Annual rate of increase in healthcare costs 5.00 % 4.00 % 4.00 % (1) Not in thousands. If the assumed rate of increase in healthcare costs was increased by one percentage point to 6% from the level presented above, the interest cost component of net periodic post-retirement healthcare benefit cost would increase by $2,000 and the accumulated post-retirement benefit obligation for healthcare benefits would increase by $85,000. The following table sets forth information for plans with an accumulated benefit obligation in excess of plan assets: December 31, 2021 2020 Projected benefit obligation $ 1,560 1,807 Accumulated benefit obligation 1,560 1,807 (c) Common Stock Awards On April 18, 2018, we established the Northwest Bancshares, Inc. 2018 Equity Incentive Plan with 1,500,000 common shares authorized for award. From this plan, we awarded employees 256,800 common shares and outside directors 24,300 common shares with a grant date fair value of $17.27 per share (total market value of $4.9 million at issuance) on May 22, 2019. We also awarded employees 261,091 common shares and outside directors 21,600 common shares with a grant date fair value of $9.71 per share (total market value of $2.7 million at issuance) on May 20, 2020. In addition, on May 25, 2021, we awarded employees 293,755 restricted common shares and directors 27,000 restricted common shares with a grant date fair value of $13.68. These common shares vest over a five-year period with the first vesting occurring on the grant date. Also during 2021, we awarded discretionary grants of 13,452 common shares with a weighted average grant date fair value of $13.76. Total common shares forfeited from the 2018 plan were 163,267, of which 46,650 shares were forfeited during the year ended December 31, 2021. Forfeited shares may be awarded to other eligible recipients in future grants until the plan termination date in 2028. (d) Stock Option Plans The Northwest Bancshares, Inc. 2018 Equity Incentive Plan also authorized the granting of 3,500,000 stock options authorized for award. On May 22, 2019, we granted employees 547,410 stock options and outside directors 64,800 stock options with an exercise price of $17.27 per share. On May 20, 2020, we granted employees 556,476 stock options and outside directors 57,600 stock options with an exercise price of $9.71 per share. On May 25, 2021, we granted employees 621,972 stock options and directors 72,000 stock options with an exercise price of $13.68 per share. These awarded stock options vest over a five-year period with the first vesting occurring on the grant date with a ten-year exercise period from the grant date. The following table summarizes the activity in our option plans during the years ended December 31, 2021, 2020 and 2019 (amounts in this table are not in thousands): Years ended December 31, 2021 2020 2019 Number Weighted average Number Weighted average Number Weighted average Balance at beginning of year 5,243,172 $ 13.72 5,101,351 $ 14.28 5,612,812 $ 13.49 Granted (1) 693,972 13.68 614,076 9.71 612,210 17.27 Exercised (2) (1,219,581) 12.28 (131,309) 11.81 (917,845) 11.77 Forfeited/expired (337,253) 14.59 (340,946) 14.39 (205,826) 14.28 Balance at end of year 4,380,310 14.05 5,243,172 13.72 5,101,351 14.28 Exercisable at end of year 2,618,733 14.15 3,350,356 13.53 2,803,918 13.36 (1) Weighted average fair value of options at grant date: $0.64, $0.13 and $1.14, respectively. (2) The total intrinsic value of options exercised was $2.3 million, $444,000 and $5.2 million, respectively. The aggregate intrinsic value of all options expected to vest and fully vested options at December 31, 2021 is $448,066 and $26,973, respectively. The following table summarizes the number of options outstanding, number of options exercisable, and weighted average remaining life of all option grants as of December 31, 2021 (amounts in this table are not in thousands): Exercise price $9.71 Exercise price $11.70 Exercise price $12.37 Exercise price $12.44 Exercise price $13.15 Options outstanding: Number of options 515,674 189,338 332,520 252,951 278,012 Weighted average remaining contract life (years) 8.50 0.50 3.50 1.50 2.50 Options exercisable: Number of options 175,719 189,338 258,792 234,308 236,034 Weighted average remaining term - vested (years) 8.50 0.50 3.50 1.50 2.50 Exercise price $13.68 Exercise price $14.15 Exercise price $15.57 Exercise price $16.59 Exercise price $17.27 Total Average $14.05 Options outstanding: Number of options 664,918 441,989 540,305 681,771 482,832 4,380,310 Weighted average remaining contract life (years) 9.50 4.50 5.50 6.50 7.50 5.83 Options exercisable: Number of options 150,032 313,173 344,900 461,605 254,832 2,618,733 Weighted average remaining term - vested (years) 9.50 4.50 5.50 6.50 7.50 4.34

Disclosures About Fair Value of

Disclosures About Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2021
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, accrued interest receivable, interest rate lock commitments, forward commitments, interest rate swaps, savings and checking deposits 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 the transferability of FHLB stock, it is not practical to determine the fair value. 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 The fair value of interest rate swaps is based upon the present value of the expected future cash flows using the LIBOR swap 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 LIBOR 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 we believe to be reasonable. 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 December 31, 2021 and 2020, 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 December 31, 2021 and 2020: December 31, 2021 Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 1,279,259 1,279,259 1,279,259 — — Securities available-for-sale 1,548,592 1,548,592 — 1,548,592 — Securities held-to-maturity 768,154 751,513 — 751,513 — Loans receivable, net 9,889,095 9,648,825 — — 9,648,825 Residential mortgage loans held-for-sale 25,056 25,056 — — 25,056 Accrued interest receivable 25,599 25,599 25,599 — — Interest rate lock commitments 1,684 1,684 — — 1,684 Forward commitments 371 371 — 371 — Interest rate swaps not designated as hedging instruments 31,254 31,254 — 31,254 — FHLB stock 14,184 14,184 — — — Total financial assets $ 13,583,248 13,326,337 1,304,858 2,331,730 9,675,565 Financial liabilities: Savings and checking accounts $ 10,973,610 10,973,610 10,973,610 — — Time deposits 1,327,555 1,339,308 — — 1,339,308 Borrowed funds 139,093 139,093 139,093 — — Subordinated debt 123,575 129,138 — 129,138 — Junior subordinated debentures 129,054 120,083 — — 120,083 Foreign exchange swaps 341 341 — 341 — Interest rate swaps not designated as hedging instruments 31,357 31,357 — 31,357 — Risk participation agreements 60 60 — 60 — Accrued interest payable 1,804 1,804 1,804 — — Total financial liabilities $ 12,726,449 12,734,794 11,114,507 160,896 1,459,391 December 31, 2020 Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 736,277 736,277 736,277 — — Securities available-for-sale 1,398,941 1,398,941 — 1,398,941 — Securities held-to-maturity 178,887 179,666 — 179,666 — Loans receivable, net 10,387,636 10,334,521 — — 10,334,521 Residential mortgage loans held-for-sale 58,786 58,786 — — 58,786 Accrued interest receivable 35,554 35,554 35,554 — — Interest rate lock commitments 6,465 6,465 — — 6,465 Forward commitments 1,105 1,105 — 1,105 — Interest rate swaps not designated as hedging instruments 53,863 53,863 — 53,863 — FHLB stock 21,748 21,748 — — — Total financial assets $ 12,879,262 12,826,926 771,831 1,633,575 10,399,772 Financial liabilities: Savings and checking accounts $ 9,957,137 9,957,137 9,957,137 — — Time deposits 1,642,096 1,669,546 — — 1,669,546 Borrowed funds 159,715 159,745 159,745 — — Subordinated debt 123,329 123,329 — 123,329 — Junior subordinated debentures 128,794 121,106 — — 121,106 Interest rate swaps not designated as hedging instruments 54,579 54,579 — 54,579 — Risk participation agreements 86 86 — 86 — Accrued interest payable 2,054 2,054 2,054 — — Total financial liabilities $ 12,067,790 12,087,582 10,118,936 177,994 1,790,652 Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The preceding methods and assumptions were used in estimating the fair value of financial instruments at December 31, 2021 and 2020. The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2021: Level 1 Level 2 Level 3 Total at Debt securities: U.S. government and agencies $ — 75,891 — 75,891 Government sponsored enterprises — 46,085 — 46,085 States and political subdivisions — 128,701 — 128,701 Total debt securities — 250,677 — 250,677 Residential mortgage-backed securities: GNMA — 16,510 — 16,510 FNMA — 160,063 — 160,063 FHLMC — 100,055 — 100,055 Non-agency — 431 — 431 Collateralized mortgage obligations: GNMA — 492,328 — 492,328 FNMA — 269,060 — 269,060 FHLMC — 259,468 — 259,468 Total mortgage-backed securities — 1,297,915 — 1,297,915 Interest rate lock commitments — — 1,684 1,684 Forward commitments — 371 — 371 Interest rate swaps not designated as hedging instruments — 31,254 — 31,254 Total assets $ — 1,580,217 1,684 1,581,901 Foreign exchange swaps $ — 341 — 341 Interest rate swaps not designated as hedging instruments — 31,357 — 31,357 Risk participation agreements — 60 — 60 Total liabilities $ — 31,758 — 31,758 The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2020: Level 1 Level 2 Level 3 Total at Debt securities: U.S. government and agencies $ — 40,917 — 40,917 Government sponsored enterprises — 94,507 — 94,507 States and political subdivisions — 116,813 — 116,813 Total debt securities — 252,237 — 252,237 Residential mortgage-backed securities: GNMA — 23,026 — 23,026 FNMA — 203,571 — 203,571 FHLMC — 134,572 — 134,572 Non-agency — 465 — 465 Collateralized mortgage obligations: GNMA — 343,409 — 343,409 FNMA — 262,109 — 262,109 FHLMC — 179,552 — 179,552 Total mortgage-backed securities — 1,146,704 — 1,146,704 Interest rate lock commitments — — 6,465 6,465 Forward commitments — 1,105 — 1,105 Interest rate swaps not designated as hedging instruments — 53,863 — 53,863 Total assets $ — 1,453,909 6,465 1,460,374 Interest rate swaps not designated as hedging instruments $ — 54,579 — 54,579 Risk participation agreements — 86 — 86 Total liabilities $ — 54,665 — 54,665 The following table presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the year ended December 31, 2021 and 2020: Years ended December 31, 2021 2020 Beginning balance January 1, $ 6,465 559 Total gains or losses: Included in net income — — Net activity (4,781) 5,906 Transfers from Level 3 — — Transfers into of Level 3 — — Ending balance December 31, $ 1,684 6,465 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 MSRs. 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, 2021: Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 46,968 46,968 Mortgage servicing rights — — 380 380 Real estate owned, net — — 873 873 Total assets $ — — 48,221 48,221 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, 2020: Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 95,303 95,303 Real estate owned, net — — 2,232 2,232 Total assets $ — — 97,535 97,535 Individually Assessed Loans - A loan is considered to be individually assessed as described in Note 1(f) as part of the adoption of ASU 2016-13. 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 December 31, 2021: Fair value ($) Valuation Significant Range Loans individually assessed 46,968 Appraisal value (1) Estimated cost to sell 10% Discounted cash flow Discount rate 8.60% to 12.95% (9.61%) Mortgage servicing rights 380 Discounted cash flow Annual service cost $84 Prepayment rate 7.1% to 23.6% (11.0%) Expected life (months) 42.2 to 103.1 (72.8) Option adjusted spread 650 basis points Forward yield curve 0.09% to 1.51% Real estate owned, net 873 Appraisal value (1) Estimated cost to sell 10% Loans held for sale 25,056 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.

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements	Regulatory Capital Requirements We and our banking subsidiary are subject to various regulatory capital requirements administered by the federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary actions by the regulators that, if undertaken, could have a direct material effect on our financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices must be met. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Applicable regulations limit an organization’s capital distributions and certain discretionary bonus payments if the organization does not hold a “capital conservation buffer” consisting of 2.5% of Total Tier 1 and Common Equity Tier 1 (“CET1”) capital to risk-weighted assets in addition to the amount necessary to meet its minimum risk-based capital requirements. Quantitative measures established by regulation to ensure capital adequacy require us and our banking subsidiary to maintain minimum amounts and ratios (set forth in the table below) of Total, Tier 1, and CET1 capital (as defined in the regulations) to risk-weighted assets (as defined) and of Tier I capital to average assets (as defined). As of December 31, 2021 and 2020, we and our banking subsidiary exceeded all capital adequacy requirements to which we were subject. We have elected to phase the estimated impact of CECL into regulatory capital in accordance with the interim final rule of the Board of Governors of the Federal Reserve System (FRB) and other U.S. banking agencies that became effective on March 31, 2020. As a result, we will delay recognizing the estimated impact of CECL on regulatory capital until after a two-year deferral period, which for us extends through December 31, 2021. Beginning on January 1, 2022, we will be required to phase in 25% of the previously deferred estimated capital impact of CECL, with an additional 25% to be phased in at the beginning of each subsequent year until fully phased in by the first quarter of 2025. Under the interim final rule, the estimated impact of CECL on regulatory capital that we will defer and later phase in is calculated as the entire day-one impact at adoption plus 25% of the subsequent change in allowance during the two-year deferral period. As of December 15, 2021, the most recent assessment from FDIC, Northwest Bank exceeded all regulatory capital requirements and their regulatory capital ratios were above the minimum levels required to be considered “well-capitalized” for regulatory purposes . To be considered as “well capitalized,” Northwest Bank must maintain total risk-based, Tier 1 risk-based, CET 1 risk-based, and Tier 1 leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the bank’s categories. The actual, required, and well capitalized levels as of December 31, 2021 and 2020 were as follows: At December 31, 2021 Actual Minimum capital Well capitalized Amount Ratio Amount Ratio Amount Ratio Total capital (to risk weighted assets) Northwest Bancshares, Inc. $ 1,682,487 17.056 % $ 1,035,786 10.500 % $ 986,463 10.000 % Northwest Bank 1,551,084 15.738 % 1,034,819 10.500 % 985,542 10.000 % Tier 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,475,190 14.954 % 838,494 8.500 % 789,170 8.000 % Northwest Bank 1,467,362 14.889 % 837,711 8.500 % 788,434 8.000 % CET 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,350,125 13.687 % 690,524 7.000 % 641,201 6.500 % Northwest Bank 1,467,362 14.889 % 689,879 7.000 % 640,602 6.500 % Tier 1 capital (leverage to average assets) Northwest Bancshares, Inc. 1,475,190 10.349 % 570,160 4.000 % 712,699 5.000 % Northwest Bank 1,467,362 10.296 % 570,047 4.000 % 712,558 5.000 % (1) Amounts and ratios include the 2021 capital conservation buffer of 2.5% with the exception of Tier 1 capital to average assets. For further information related to the capital conservation buffer, see “ Item 1. Business - Supervision and Regulation ” . At December 31, 2020 Actual Minimum capital Well capitalized Amount Ratio Amount Ratio Amount Ratio Total capital (to risk weighted assets) Northwest Bancshares, Inc. $ 1,654,198 16.642 % $ 1,043,693 10.500 % $ 993,993 10.000 % Northwest Bank 1,478,310 14.887 % 1,042,655 10.500 % 993,004 10.000 % Tier 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,406,321 14.148 % 844,894 8.500 % 795,195 8.000 % Northwest Bank 1,354,028 13.636 % 844,054 8.500 % 794,403 8.000 % CET 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,281,516 12.893 % 695,795 7.000 % 646,096 6.500 % Northwest Bank 1,354,028 13.636 % 695,103 7.000 % 645,453 6.500 % Tier 1 capital (leverage to average assets) Northwest Bancshares, Inc. 1,406,321 10.145 % 554,501 4.000 % 693,126 5.000 % Northwest Bank 1,354,028 9.903 % 546,905 4.000 % 683,631 5.000 % (1) Amounts and ratios include the 2020 capital conservation buffer of 2.5% with the exception of Tier 1 capital to average assets. For further information related to the capital conservation buffer, see Item 1. Business - “ Supervision and Regulation”.

Contingent Liabilities

Contingent Liabilities	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities	Contingent Liabilities We and our subsidiaries are subject to a number of asserted and unasserted claims encountered in the normal course of business. Management believes that the aggregate liability, if any, that may result from such potential litigation will not have a material adverse effect on our financial statements. However, we cannot presently determine whether or not any claims against us will have a material adverse effect on our results of operations in any future reporting period.

Legal Proceedings

Legal Proceedings	12 Months Ended
	Dec. 31, 2021
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 December 31, 2021, 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. During the year-ended December 31, 2018, Northwest and our subsidiary, The Bert Company (doing business as Northwest Insurance Services) (“NWIS”), were involved in a lawsuit against, among others, First National Bank of Pennsylvania (“FNB”) and their insurance subsidiary, First National Insurance Agency, LLC (“FNIA”). All counterclaims against Northwest were discontinued and, in December 2018, a verdict was rendered in favor of NWIS on several of its claims. Post-trial proceedings have continued throughout the current year and, due to the inherent uncertainties with respect to these proceedings, we have not accrued any awards associated with this verdict within our Consolidated Financial Statements as of December 31, 2021.

Components of Accumulated Other

Components of Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Accumulated Other Comprehensive Income	Components of Accumulated Other Comprehensive Income The following table sets forth the components of accumulated other comprehensive loss as of December 31, 2021 and 2020: December 31, 2021 2020 Unrealized gain/(loss) on marketable securities available-for-sale $ (12,317) 16,843 Defined benefit pension plans (25,312) (50,392) Accumulated other comprehensive loss $ (37,629) (33,549) The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2021: Unrealized gains and losses on securities Change in defined Total Balance as of January 1, $ 16,843 (50,392) (33,549) Other comprehensive income/(loss) before reclassification adjustments (1), (2) (28,873) 23,748 (5,125) Amounts reclassified from accumulated other comprehensive income (3), (4) (287) 1,332 1,045 Net other comprehensive income/(loss) (29,160) 25,080 (4,080) Balance as of December 31, $ (12,317) (25,312) (37,629) (1) Consists of unrealized holding losses, net of tax of ($10,333). (2) Consists of unrealized holdings gains, net of tax $9,144. (3) Consists of realized holding losses, net of tax of ($92). (4) Consists of realized gains, net of tax of $515. The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2020: Unrealized gains and losses on securities available-for-sale Change in Change in defined Total Balance as of January 1, $ 3,147 — (40,088) (36,941) Other comprehensive income/(loss) before reclassification adjustments (1), (2), (3) 13,711 (946) (11,301) 1,464 Amounts reclassified from accumulated other comprehensive income (4), (5), (6) (15) 946 997 1,928 Net other comprehensive income/(loss) 13,696 — (10,304) 3,392 Balance as of December 31, $ 16,843 — (50,392) (33,549) (1) Consists of unrealized holding gains, net of tax of $5,607. (2) Consists of unrealized holding losses, net of tax of ($209). (3) Consists of unrealized holding losses, net of tax of ($4,169). (4) Consists of realized gains, net of tax of ($6). (5) Consists of realized losses interest rate swaps, net of tax of $209. (6) Consists of realized gains, net of tax of $395. The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2019: Unrealized gains and losses on securities Change in defined benefit pension plans Total Balance as of January 1, $ (6,832) (32,864) (39,696) Other comprehensive income/(loss) before reclassification adjustments (1), (2) 9,984 (8,059) 1,925 Amounts reclassified from accumulated other comprehensive income (3), (4) (5) 835 830 Net other comprehensive income/(loss) 9,979 (7,224) 2,755 Balance as of December 31, $ 3,147 (40,088) (36,941) (1) Consists of unrealized holding gains, net of tax of $3,994. (2) Consists of unrealized holding losses, net of tax of ($3,193). (3) Consists of realized gains, net of tax of ($2). (4) Consists of realized gains, net of tax of $334.

Parent Company Only Financial S

Parent Company Only Financial Statements - Condensed	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Financial Statements - Condensed	Parent Company Only Financial Statements - Condensed Statements of Financial Condition December 31, 2021 2020 Assets Cash and cash equivalents $ 128,001 172,142 Investment in bank subsidiary 1,674,360 1,585,429 Other assets 9,199 9,352 Total assets $ 1,811,560 1,766,923 Liabilities and shareholders’ equity Liabilities: Debentures payable $ 252,629 252,123 Other liabilities 1,814 1,889 Total liabilities 254,443 254,012 Shareholders’ equity 1,557,117 1,512,911 Total liabilities and shareholders’ equity $ 1,811,560 1,766,923 Statements of Income Years ended December 31, 2021 2020 2019 Income: Interest income $ 87 196 209 Other income 527 553 628 Dividends from bank subsidiary 73,000 — 110,000 Undistributed earnings from equity investment in bank subsidiary 88,944 80,996 5,102 Total income 162,558 81,745 115,939 Expense: Compensation and employee benefits 1,358 1,234 1,124 Other expenses 1,033 2,241 791 Interest expense 7,870 4,933 4,833 Total expense 10,261 8,408 6,748 Income before income taxes 152,297 73,337 109,191 Income tax benefit (2,026) (1,517) (1,241) Net income $ 154,323 74,854 110,432 Statements of Cash Flows Years ended December 31, 2021 2020 2019 Operating activities: Net income $ 154,323 74,854 110,432 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed earnings of subsidiary (88,944) (80,996) (5,102) Gain on sale of marketable securities — — (29) Net change in other assets and liabilities 597 128,287 (43,453) Net cash provided by operating activities 65,976 122,145 61,848 Investing activities: Net purchase sale of marketable securities — — — Net cash used in investing activities — — — Financing activities: Cash dividends paid on common stock (100,274) (93,132) (76,173) Repurchase of Northwest stock (23,854) (9,276) — Proceeds from stock options exercised 14,011 1,479 9,727 Net cash used in financing activities (110,117) (100,929) (66,446) Net increase/(decrease) in cash and cash equivalents $ (44,141) 21,216 (4,598) Cash and cash equivalents at beginning of period $ 172,142 150,926 155,524 Net increase/(decrease) in cash and cash equivalents (44,141) 21,216 (4,598) Cash and cash equivalents at end of period $ 128,001 172,142 150,926

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2021
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 March 2020, the Company entered into four 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 $100 million with maturities ranging from three Derivatives and Hedging . The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the quarter of September 30, 2020, the Company discontinued these cash flow hedges and, as a result, reclassified a $1.3 million loss into earnings. As of December 31, 2021, the Company had no cash flow hedges. 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. The following table presents information regarding our derivative financial instruments for the periods indicated: Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At December 31, 2021 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 644,997 31,254 644,997 31,357 Foreign exchange swap agreements — — 17,124 341 Interest rate lock commitments 67,473 1,684 — — Forward commitments 14,484 371 — — Risk participation agreements — — 93,135 60 Total derivatives $ 726,954 33,309 755,256 31,758 At December 31, 2020 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 599,300 53,863 599,300 54,579 Interest rate lock commitments 171,357 6,465 — — Forward commitments 25,474 1,105 — — Risk participation agreements — — 77,532 86 Total derivatives $ 796,131 61,433 676,832 54,665 The following table presents income or expenses recognized on derivatives for the periods indicated: For the years ended December 31, 2021 2020 2019 Hedging derivatives: Decrease in interest expense $ — (35) — Non-hedging swap derivatives: Increase/(decrease) in other income 1,033 (700) (63) Increase in mortgage banking income 5,515 6,867 —

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Nature of Operations Northwest Bancshares, Inc., a Maryland corporation headquartered in Columbus, Ohio, is the federal savings and loan holding company for its wholly owned subsidiary, Northwest Bank. Northwest Bank, a Pennsylvania chartered savings bank, offers personal and business deposit and loan products as well as investment management and insurance services through its 170 banking locations in Pennsylvania, New York, Ohio, and Indiana. We have determined that we have one reportable business segment.
Principles of Consolidation	Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries after elimination of all intercompany accounts and transactions.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of the statements of financial condition and cash flows, cash and cash equivalents include cash and amounts due from banks, interest-bearing deposits in other financial institutions, federal funds sold, and other short-term investments with original maturities of three months or less.
Marketable Securities	Marketable Securities We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading. Securities for which management has the intent and ability to hold until maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/(loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or during the years ended December 31, 2021 and 2020. Fair values are determined as described in Note 17. Throughout the year we validate the prices received from third parties by comparing them to prices provided by a different independent pricing service. We have reviewed the detailed valuation methodologies provided to us by our pricing services. On a quarterly basis, we measure expected credit losses on held-to-maturity debt securities on a collective basis by major security type and all of our held-to-maturity debt securities are residential mortgage-backed securities. Accrued interest receivable on held-to-maturity debt securities totaled $2.2 million and $1.8 million at December 31, 2021 and December 31, 2020, respectively, and is excluded from estimated credit losses. All of our residential mortgage-backed securities are issued by U.S. government entities and agencies. 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. For available-for-sale debt securities in an unrealized loss position, on at least a quarterly basis, we review our investments for impairment. An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. We consider both our intent to sell and the likelihood that we will not have to sell the investment securities before recovery of their amortized cost basis during our evaluation. If we intend to sell the investment security or if it is more likely than not that we will be required to sell the investment security, the entire impairment is recorded in earnings. For available-for-sale debt securities that do not meet this criteria, we evaluate whether the decline in fair value has resulted from credit losses or other factors. In making this assessment we consider the issuer of the securities and their creditworthiness, any changes to the rating of the security and any adverse conditions specifically related to the security, among other factors. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when we believe the uncollectibility of an available-for-sale security is confirmed or when there is an intent or requirement to sell the security. Accrued interest receivable on available-for-sale debt securities totaled $1.9 million at December 31, 2021 and December 31, 2020, and is excluded from the estimate of credit losses. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days past due. The receivable for interest income that is accrued but not collected is reversed against interest income when the debt security is placed on nonaccrual status.
Loans Receivable	Loans Receivable Our portfolio segments are based on the class of financing receivable. Additionally, the class of financing receivables are based on several factors including the method for monitoring and assessing credit risk and the risk characteristics of the financing receivables. Based on evaluation of the nature of our financing receivables, along with the nature and extent of exposure to credit risk arising from these receivables, our portfolio segments were determined to be Personal Banking and Business Banking loans. • Personal Banking loans consist of the following classes of financing receivables: ◦ Residential mortgage loans - fixed and adjustable rate mortgage loans ◦ Home equity loans - first and second mortgage loans and home equity lines of credit ◦ Vehicle loans - direct and indirect automobile and motorcycle loans ◦ Consumer loans - unsecured lines of credit, credit card loans, and other consumer loans • Business Banking loans consist of the following classes of financing receivables: ◦ Commercial real estate - multi-family commercial real estate loans are secured by multi-family residences, such as rental properties and loans secured by nonresidential properties such as hotels, commercial offices, medical buildings, manufacturing facilities and retail establishments, excluding owner-occupied loans, and including small business commercial real estate loans ◦ Commercial real estate - owner-occupied loans - commercial real estate loans secured by residential or non-residential properties ◦ Commercial loans - other commercial loans, including small business commercial loans Loans are reported at amortized cost. Amortized cost is the principal balance outstanding, net of any deferred purchased premiums and discounts, deferred origination fees or costs and the allowance for credit losses. Accrued interest receivable totaled $21.3 million and $31.7 million at December 31, 2021 and December 31, 2020, respectively, and was reported in accrued interest receivable on the Consolidated Statements of Financial Position. Accrued interest receivable is excluded from the amortized cost basis of loans and from the estimate of allowance for credit losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed and such loans are placed on nonaccrual status. All loans are placed on nonaccrual status when principal or interest is 90 days or more delinquent or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all nonaccrual loans are recognized as interest income when it has been determined that all principal and interest will be collected or are applied to principal when collectability of contractual principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months. A loan is considered to be a troubled debt restructuring loan (“TDR”) when the borrower is experiencing financial difficulties and the restructuring constitutes a concession. TDRs may include modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified as a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk. Loan delinquency is measured based on the number of days since the payment due date. Past due status is measured using the loan’s contractual maturity date. Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible or when it has been determined that the collateral value no longer supports the carrying value of the loan for loans that are collateral dependent. Loan fees and certain direct loan origination costs are deferred and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income. We identify certain residential mortgage loans which will be sold prior to maturity, as loans held-for-sale. These loans are recorded at fair value less estimated cost to sell. At December 31, 2021 and 2020, there were $25.1 million and $58.8 million of residential mortgage loans classified as held-for-sale, respectively. Acquired loans that are not considered purchased with credit deterioration (“PCD”) are initially measured at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest.
Allowance for Loan Losses and Provision for Loan Losses	Allowance for Credit Losses and Provision for Credit Losses The allowance for credit losses is deducted from, or added to, the loan’s amortized cost basis to present the net amount expected to be collected on our lending portfolios. We estimate the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Loans are charged off against the allowance when we believe the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Expected credit losses are estimated over the contractual term of the loans, adjusted for prepayments. The contractual term excludes expected extensions, renewals and modifications unless we had a reasonable expectation at the reporting date that a TDR will be executed for an individual borrower or the extension or renewal option is included in the contract and is not unconditionally cancellable by the Company. Credit card receivables do not have stated maturities. In determining the estimated life of a credit card receivable, we first estimate the future cash flows expected to be received and then apply those expected future cash flows to the credit card balance. Expected credit losses for credit cards are determined by estimating the amount and timing of principal payments expected to be received as payment for the balance outstanding as of the reporting date and applying those principal payments against the balance outstanding as of the reporting period until the expected payments have been fully allocated. The allowance for credit losses is recorded for the excess of the balance outstanding as of the reporting period over the expected principal payments. The allowance for credit losses is measured on a collective (“pool”) basis when similar risk characteristics exist. For the purpose of calculating portfolio-level reserves, we have grouped our loans into seven segments: residential mortgage loans, home equity loans, vehicle loans, consumer loans, commercial real estate loans, commercial real estate owner-occupied and commercial loans. The allowance for credit losses is measured at the pool level utilizing loan-level inputs wherever possible. We use a twenty-four month forecasting period and revert to historical average loss rates thereafter. The reasonable and supportable forecast is based on a probability-weighted multiple economic scenario approach and obtained from a third party vendor. Reversion to the mean takes place over a twelve-month period. Our loss rate models utilize a linear reversion method. For our Probability of Default (“PD”)/Loss Given Default (“LDG”) models we revert the PD utilizing exponential reversion, which is an accelerated method, and the LGD utilizing a linear reversion method. Historical average loss rates are calculated using historical data beginning in 2009 through the current period. As part of the analysis as of December 31, 2021, we considered the most recent economic conditions and forecasts available which incorporated the impact of COVID-19. Mortgage and Home Equity Loans The allowance for credit losses within the mortgage and home equity loan classes is calculated at the pool-level using a non-discounted cash flow method through a PD and LGD model developed by an external third-party. These classes are further divided into smaller pools of loans with similar risk characteristics such as: lines versus loans, fixed versus variable, senior lien position versus junior lien position, among other things. For each pool, the models project default rates, prepayment rates, and severity rates. The models accept as inputs key risk drivers such as: current balance, original credit bureau score, original loan-to-value ratio, type of collateral, location of collateral, delinquency status, loan age, among other characteristics. They also utilize macroeconomic forecasts of home price indices, unemployment rates, gross domestic product, and others. Vehicle Loans The allowance for credit losses within the vehicle loan portfolio is calculated at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. The allowance for vehicle loans utilizes a vintage analysis to project portfolio-level net charge-off rates. The class is further divided into short term versus long term loans, prime versus subprime borrowers, and origination vintage. This model uses current balance, original credit bureau score, original debt-to-income ratio, loan term, loan age, and other product characteristics as key risk drivers. The model used for vehicle loans is not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. Consumer Loans The allowance for credit losses within the consumer loan portfolio is calculated at the portfolio-level using a non-discounted cash flow method through a suite of loss rate models developed internally with the assistance of an external third-party. This class of financing receivables is further divided into credit cards, unsecured lines of credit and other consumer loans. The allowance for credit losses for credit cards and unsecured lines of credit is calculated using two transition matrix models to project portfolio-level net charge-off rates. Both models use current balance and delinquency status as key risk drivers. These models are not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. For other consumer loans, a regression model is used to project portfolio-level net charge-off rates. This model uses borrower information and macroeconomic forecasts as key inputs. Commercial Real Estate Loans The commercial real estate loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial real estate loans and small business commercial real estate loans. The allowance for credit losses for the commercial real estate loan portfolio is calculated at the pool level using a non-discounted cash flow method through a PD/LGD model developed by an external third-party. This model projects default and severity rates. The model accepts as inputs key risk drivers such as: current balance, original loan-to-value-ratio, type of collateral, location of collateral, delinquency status, loan age, obligor financial statement information, and expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of commercial real estate price indices, unemployment rates, gross domestic product and others. The allowance for credit losses is calculated for commercial real estate small business loans at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Commercial Loans and Commercial Real Estate - Owner Occupied Loans The allowance for credit losses for the commercial loan portfolio and the commercial real estate - owner occupied loan portfolio is calculated at the pool level using a non-discounted cash flow method through a PD/LGD model developed by an external third-party. The commercial loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial loans and commercial small business loans. The commercial loan portfolio and the commercial real estate owner occupied loan portfolio models project default and severity rates. The model accepts as inputs key risk drivers such as the obligor financial statement information, collateral type, the obligor’s primary industry, expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of unemployment rates, gross domestic product, corporate bond spreads, and others. The allowance for credit losses for commercial small business loans is calculated at the portfolio-level using a non-discounted cash flow method through a loss rate model developed internally with the assistance of an external third-party. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When we determine that foreclosure is probable or when the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. If this criteria is not met, a discounted cash flow method is used to determine the allowance for credit losses. All changes in the discounted cash flow method over time are reported in the allowance for credit losses. The allowance calculation is also supplemented with qualitative reserves that takes into consideration the current portfolio and specific risk characteristics, such as changes in underwriting standards, portfolio mix, delinquency level, or term, as well as changes in environmental conditions, among other factors, that have occurred but are not yet reflected in the quantitative model component. The allowance for credit losses on a TDR is measured using the same method as all other loans held for investment, except when the value of the concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit losses is determined by discounting the expected future cash flows at the original interest rate of the loan. For off-balance-sheet credit exposures, we estimate expected credit losses over the contractual period in which we are exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable. The liability for credit losses on off-balance-sheet credit exposures is adjusted through a provision for credit loss expense and is included within “other expenses”. We estimate the liability balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. The estimate includes a consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Off-balance-sheet exposures that are not unconditionally cancellable have been identified for the mortgage, home equity, commercial real estate, and commercial loan portfolios. Results for reporting periods beginning after January 1, 2020 are presented under CECL methodology while prior period amounts continue to be reported in accordance with Accounting Standards Codification (“ASC”) Topic 450, Contingencies; and specific reserves based upon ASC Topic 310, Receivables. ASC Topic 450 applies to homogeneous loan pools such as commercial loans, consumer lines of credit and residential mortgages that are not individually evaluated for impairment. ASC Topic 310 is applied to commercial and consumer loans that are individually evaluated for impairment.
Real Estate Owned	Real Estate Owned Real estate owned is comprised of property either acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the loan balance or fair value of the collateral, less estimated disposition costs, with the fair value being determined by an appraisal. Any initial write-down is charged to the allowance for credit losses. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or the current fair value, less estimated disposition costs. Any subsequent write-down or gains or losses realized from the disposition of such property are credited or charged to noninterest income.
Restricted Investment in Federal Home Loan Bank Stock	Restricted Investment in FHLB StockFederal law requires a member institution of the FHLB system to hold stock of its district FHLB according to a predetermined formula. FHLB stock is carried at cost and evaluated for impairment based on the ultimate recoverability of the par value. FHLB stock can only be purchased, redeemed and transferred at par value. Dividends are reported in interest income in the Consolidated Statements of Income.
Premises and Equipment	Premises and Equipment Premises and equipment are carried at cost, less accumulated depreciation and amortization. Depreciation is accumulated on a straight-line basis over the estimated useful lives of the related assets. Estimated lives range from three
Goodwill	Goodwill Goodwill is generated from the premium paid for an acquisition and is allocated to reporting units, which are either our reportable segments or one level below. Reporting units are identified based upon analyzing each individual operating segment. A reporting unit is defined as a distinct, separately identifiable component of an operating segment for which complete, discrete financial information is available that management regularly reviews. Goodwill is not subject to amortization but is tested for impairment at least annually and possibly more frequently if certain events occur or changes in circumstances arise. In testing goodwill for impairment, we have the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, after assessing all events and circumstances, we determine it is not more likely than not that the fair value of a reporting unit is less than its carrying value, then performing the two-step impairment test would be unnecessary. However, if we conclude otherwise, it would then be required to perform the first step of the goodwill impairment test and continue to the second step, if necessary. Step 1 requires the fair value of each reporting unit be compared to its carrying amount, including goodwill. Determining the fair value of a reporting unit requires a high degree of subjective judgment, including developing cash flow projections, selecting appropriate discount rates, identifying relevant market comparables, incorporating general economic and market conditions and selecting an appropriate control premium. We have established June 30 of each year as the date for conducting our annual goodwill impairment assessment. Quarterly, we evaluate if there are any triggering events that would require an update to our previous assessment. We conducted our annual impairment assessment as of June 30, 2021 by first performing a qualitative assessment of goodwill to determine if it was more likely than not that the fair value was less than the carrying value. In performing a qualitative analysis, factors considered include, but are not limited to, macroeconomic conditions, industry and market conditions and overall financial performance. The results of the qualitative assessment for 2021 indicated that it was not more likely than not that the fair value of the reporting unit was less than the carrying value. Consequently, no additional quantitative two-step impairment test was required and no impairment was recorded in 2021. Future events could cause us to conclude that goodwill has become impaired, which would result in recording an impairment loss. There were no changes in our operations that would cause us to update the assessment performed as of June 30, 2021 and 2020. Accordingly, we have determined that goodwill is not impaired as of December 31, 2021 and 2020.
Core Deposit and Other Identifiable Intangibles	Core Deposit and Other Identifiable Intangibles Through the assistance of an independent third party, we analyze and prepare a core deposit study for all bank acquisitions or other identifiable intangible asset study, such as customer lists, for all non-bank acquisitions. The core deposit study reflects the cumulative present value benefit of acquiring deposits versus an alternative source of funding. The other identifiable intangible asset seven
Bank-Owned Life Insurance	Bank-Owned Life Insurance We own insurance on the lives of a certain group of current and former employees and directors. The policies were purchased to help offset the increase in the costs of various benefit plans, including healthcare, as well as the directors deferred compensation plan. The cash surrender value of these policies is included as an asset on the Consolidated Statements of Financial Condition and any increases in the cash surrender value are recorded as tax-free noninterest income on the Consolidated Statements of Income. In the event of the death of an insured individual covered by these policies, after distribution to the insured’s beneficiaries, if any, we receive a tax-free death benefit, which is recorded as noninterest income.
Deposits	Deposits Interest on deposits is accrued and charged to expense monthly and is paid or credited in accordance with the terms of the accounts.
Revenue Recognition	Revenue Recognition Revenue that is not associated with our financial assets and financial liabilities is recognized when performance obligations under the terms of a contract with our customers are satisfied. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. The majority of our revenue continues to be recognized at the point in time when the services are provided to our customers.
Pension Plans	Pension Plans We maintain multiple noncontributory defined benefit pension plans (“Pension Plan”) for substantially all of our employees. The net periodic pension cost has been calculated using service cost, interest cost, expected returns on plan assets and net amortization. The other components of the net periodic benefit cost are included in other expense on the Consolidated Statement of Income and are reported separately from the service costs. Pension expense and obligations depend on assumptions used in calculating such amounts. These assumptions include discount rates, anticipated salary increases, interest costs, expected return on plan assets, mortality rates, and other factors. In determining the projected benefit obligations for pension benefits at December 31, 2021 and 2020, we u sed a discount rate of 2.75% and 2.39%, respectively. We use the FTSE (previously Citigroup) Pension Liability Index rates matching the duration of our benefit payments as of the measurement date, December 31, to determine the discount rate.
Income Taxes	Income Taxes We join with our wholly owned subsidiaries in filing a consolidated federal income tax return. In accordance with an intercompany tax allocation agreement, the applicable federal income tax expense or benefit is allocated to each subsidiary based upon taxable income or loss calculated on a separate company basis. Each subsidiary is responsible for payment of its own federal income tax liability or receives reimbursement of federal income tax benefit. In addition, deferred taxes are calculated and maintained on a separate company basis.
Stock-Related Compensation	Stock-Related Compensation We determine the fair value of each option award, estimated on the grant date, using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model uses variables including expected volatilities, expected term, risk-free discount rate and annual rate of quarterly dividends. Expected volatilities are based on historical volatility of the Company’s stock. The expected terms are based upon actual exercise and forfeiture experience of previous option grants. The risk-free rate is based on yields on U.S. Treasury securities of a similar maturity to the expected term of the options. For options outstanding at December 31, 2021, the following assumptions were used to determine the option’s fair value: (1) annual rate of quarterly dividends ranging from 3.9% to 7.5% based on historical dividends and market prices; (2) expected volatility of 13.0% to 19.0% based on historical average monthly volatility; (3) risk-free discount rates ranging from 0.7% to 2.9%; and (4) expected lives of nine five five
Derivative financial instruments	Derivative Financial Instruments We recognize all derivative financial instruments as either assets or liabilities in the balance sheet and measure those instruments at fair value. The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. An entity that elects to use hedge accounting is required, at inception, to establish the method it will use for assessing the effectiveness of the hedging derivative and the measurement approach for determining the ineffective aspect of the hedge. Those methods must be consistent with our approach to managing risk.
Off-Balance-Sheet Instruments	Off-Balance-Sheet Instruments In the normal course of business, we extend credit in the form of loan commitments, undisbursed lines of credit, and standby letters of credit. These off-balance-sheet instruments involve, to various degrees, elements of credit and interest rate risk not reported in the Consolidated Statement of Financial Condition. We utilize the same underwriting standards for these instruments as other extensions of credit.
Use of Estimates	Use of EstimatesThe preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. The estimates and assumptions that we deem important to our financial statements relate to the allowance for loan losses, the accounting treatment and valuation of our investment securities portfolio, the analysis of the carrying value of goodwill, pension and income taxes. These estimates and assumptions are based on management’s best estimates and judgment and we evaluate them using historical experience and other factors, including the current economic environment. We adjust our estimates and assumptions when facts and circumstances dictate. As future events cannot be determined, actual results could differ significantly from our estimates.
Reclassification of Prior Years' Statements	Reclassification of Prior Years’ Statements Certain items previously reported have been reclassified to conform with the current year’s reporting format.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In August 2018, the FASB issued ASU 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20) - Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans”. This guidance removes and adds disclosure requirements for defined benefit pension or other post-retirement plans. On January 1, 2021, the Company adopted ASU 2018-14 on a retrospective basis for disclosures impacted. The adoption of this standard did not have a material effect on our results of operations or financial position. Refer to Note 15, “Employee Benefit Plans ” . In December 2019, the FASB issued ASU 2019-12, “Income Taxes - Simplifying the Accounting for Income Taxes”.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Lease, cost	The components of lease cost recognized within our Consolidated Statements of Income were as follows: For the years ended December 31, 2021 2020 Operating lease costs (office operations) $ 5,802 6,139 Variable lease costs (office operations) 662 680 Total operating lease costs $ 6,464 6,819 Other information related to leases were as follows: For the years ended December 31, 2021 2020 Supplemental cash flow information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flow from operating leases $ 6,143 6,204 ROU assets obtained in exchange for lease obligations 12,866 8,657 Weighted average remaining lease term 15.9 years 15.1 years Weighted average discount rate 3.1 % 3.4 %
Assets and liabilities, lessee	Amounts reported in the Consolidated Statements of Financial Condition were as follows: For the years ended December 31, 2021 2020 Operating leases: Operating lease ROU assets (other assets) $ 54,887 48,329 Operating lease liabilities (other liabilities) 57,726 52,206
Lessee, operating lease, liability, maturity	Maturities of lease liabilities by fiscal year for our operating leases are as follows: As of December 31, 2021 2022 $ 6,080 2023 5,777 2024 5,039 2025 4,822 2026 4,734 Thereafter 48,471 Total lease payments 74,923 Less amount of lease payments representing interest 17,197 Total present value of lease payments $ 57,726

Marketable Securities (Tables)

Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of the portfolio of investment securities available-for-sale	Marketable securities available-for-sale at December 31, 2021 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due in one year through five years $ 20,000 — (68) 19,932 Due after ten years 57,681 — (1,722) 55,959 Debt issued by government sponsored enterprises: Due in less than one year 177 — — 177 Due in one year through five years 991 73 — 1,064 Due in five years through ten years 46,411 1 (1,568) 44,844 Municipal securities: Due in less than one year 946 13 — 959 Due in one year through five years 1,261 22 (3) 1,280 Due in five years through ten years 23,692 661 (146) 24,207 Due after ten years 99,558 2,884 (187) 102,255 Residential mortgage-backed securities: Fixed rate pass-through 265,604 2,389 (2,525) 265,468 Variable rate pass-through 11,306 294 (9) 11,591 Fixed rate agency CMOs 997,680 2,284 (18,965) 980,999 Variable rate agency CMOs 39,695 224 (62) 39,857 Total residential mortgage-backed securities 1,314,285 5,191 (21,561) 1,297,915 Total marketable securities available-for-sale $ 1,565,002 8,845 (25,255) 1,548,592 Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due after ten year $ 40,761 211 (55) 40,917 Debt issued by government-sponsored enterprises: Due in less than one year 24,976 159 — 25,135 Due in one year through five years 238 3 — 241 Due in five years through ten years 68,973 238 (80) 69,131 Municipal securities: Due in less than one year 4,008 14 — 4,022 Due in one year through five years 2,803 63 (2) 2,864 Due in five years through ten years 16,045 429 (5) 16,469 Due after ten years 89,778 3,752 (72) 93,458 Residential mortgage-backed securities: Fixed rate pass-through 339,406 7,125 (86) 346,445 Variable rate pass-through 14,778 431 (20) 15,189 Fixed rate agency CMOs 723,586 11,758 (1,093) 734,251 Variable rate agency CMOs 50,333 519 (33) 50,819 Total residential mortgage-backed securities 1,128,103 19,833 (1,232) 1,146,704 Total marketable securities available-for-sale $ 1,375,685 24,702 (1,446) 1,398,941 The following table shows the contractual maturity of our residential mortgage-backed securities available-for-sale at December 31, 2021: Amortized cost Fair value Residential mortgage-backed securities: Due in less than one year $ 490 491 Due in one year through five years 14,013 14,126 Due after five years through ten years 89,594 89,948 Due after ten years 1,210,188 1,193,350 Total residential mortgage-backed securities $ 1,314,285 1,297,915
Schedule of the portfolio of investment securities held-to-maturity	Marketable securities held-to-maturity at December 31, 2021 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due in one year through five years $ 16,478 — (206) 16,272 Due in five years through ten years 107,973 — (4,613) 103,360 Residential mortgage-backed securities: Fixed rate pass-through 183,092 58 (2,161) 180,989 Variable rate pass-through 667 24 — 691 Fixed rate agency CMOs 459,345 251 (10,011) 449,585 Variable rate agency CMOs 599 17 — 616 Total residential mortgage-backed securities 643,703 350 (12,172) 631,881 Total marketable securities held-to-maturity $ 768,154 350 (16,991) 751,513 Marketable securities held-to-maturity at December 31, 2020 are as follows: Amortized cost Gross unrealized Gross unrealized Fair value Debt issued by the U.S. government and agencies: Due after five years through ten years $ 67,990 12 (123) 67,879 Residential mortgage-backed securities: Fixed rate pass-through 1,723 131 — 1,854 Variable rate pass-through 919 30 — 949 Fixed rate agency CMOs 107,651 716 (2) 108,365 Variable rate agency CMOs 604 15 — 619 Total residential mortgage-backed securities 110,897 892 (2) 111,787 Total marketable securities held-to-maturity $ 178,887 904 (125) 179,666 The following table shows the contractual maturity of our residential mortgage-backed securities held-to-maturity at December 31, 2021: Amortized cost Fair value Residential mortgage-backed securities: Due in one year through five years $ 792 833 Due after five years through ten years 40,494 38,817 Due after ten years 602,417 592,231 Total residential mortgage-backed securities $ 643,703 631,881
Information regarding the issuers and the carrying values of the entity's mortgage-backed securities	The following table presents information regarding the issuers and the carrying values of our mortgage-backed securities at December 31, 2021 and 2020: December 31, 2021 2020 Residential mortgage-backed securities: FNMA $ 704,070 532,532 GNMA 577,684 367,354 FHLMC 659,433 357,249 Other (including non-agency) 431 466 Total residential mortgage-backed securities $ 1,941,618 1,257,601
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 and gross unrealized losses on 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, 2021: Less than 12 months 12 months or more Total Fair value Unrealized Fair value Unrealized Fair value Unrealized U.S. government sponsored enterprises $ 132,782 (3,504) 106,160 (4,673) 238,942 (8,177) Municipal securities 25,118 (336) — — 25,118 (336) Residential mortgage-backed securities 1,428,582 (26,516) 184,389 (7,217) 1,612,971 (33,733) Total temporarily impaired securities $ 1,586,482 (30,356) 290,549 (11,890) 1,877,031 (42,246) The following table shows the fair value and gross unrealized losses on 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, 2020: Less than 12 months 12 months or more Total Fair value Unrealized Fair value Unrealized Fair value Unrealized U.S. government sponsored enterprises $ 67,809 (179) 1,923 (80) 69,732 (259) Municipal securities 4,257 (79) — — 4,257 (79) Residential mortgage-backed securities 300,767 (1,202) 5,533 (31) 306,300 (1,233) Total temporarily impaired securities $ 372,833 (1,460) 7,456 (111) 380,289 (1,571)
Debt Securities, Held-to-maturity, Credit Quality Indicator	The following table presents the credit quality for our held-to-maturity securities, based on the latest information available as of December 31, 2021. The credit ratings are sourced from nationally recognized rating agencies, including Moody ’ s and S&P, or when credit ratings cannot be sourced from the agencies, 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 December 31, 2021. AA+ Total Held-to-maturity securities: Debt issued by the U.S. government-sponsored agencies $ 124,451 124,451 Residential mortgage-backed securities 643,703 643,703 Total marketable securities held-to-maturity $ 768,154 768,154

Loans Receivable (Tables)

Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Summary of loans receivable	The following table shows a summary of our loans receivable at amortized cost basis at December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 December 31, 2020 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,783,459 211,161 2,994,620 2,753,593 314,528 3,068,121 Home equity loans 1,107,202 212,729 1,319,931 1,175,703 292,033 1,467,736 Vehicle loans 1,384,246 99,985 1,484,231 995,040 157,633 1,152,673 Consumer loans 307,961 46,556 354,517 288,066 67,254 355,320 Total Personal Banking 5,582,868 570,431 6,153,299 5,212,402 831,448 6,043,850 Commercial Banking: Commercial real estate loans 2,202,027 423,454 2,625,481 2,223,108 624,873 2,847,981 Commercial real estate loans - owner occupied 321,253 68,750 390,003 344,016 153,892 497,908 Commercial loans 765,877 81,732 847,609 1,019,482 171,628 1,191,110 Total Commercial Banking 3,289,157 573,936 3,863,093 3,586,606 950,393 4,536,999 Total loans receivable, gross 8,872,025 1,144,367 10,016,392 8,799,008 1,781,841 10,580,849 Allowance for credit losses (86,750) (15,491) (102,241) (102,874) (31,553) (134,427) Total loans receivable, net (2) $ 8,785,275 1,128,876 9,914,151 8,696,134 1,750,288 10,446,422 (1) Includes $25.1 million and $58.8 million of loans held-for-sale at December 31, 2021 and December 31, 2020, respectively. (2) Includes $62.8 million and $40.9 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at December 31, 2021 and December 31, 2020, respectively.
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 year ended December 31, 2021 (in thousands): Balance as of December 31, 2021 Current Charge-offs Recoveries Balance as of December 31, 2020 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 7,373 2,844 (3,672) 935 7,266 Home equity loans 5,300 1,788 (3,380) 900 5,992 Vehicle loans 15,483 2,754 (4,632) 2,536 14,825 Consumer loans 2,884 3,070 (5,417) 2,360 2,871 Total Personal Banking 31,040 10,456 (17,101) 6,731 30,954 Commercial Banking: Commercial real estate loans 54,141 (15,496) (11,933) 2,189 79,381 Commercial real estate loans - owner occupied 3,883 (5,852) (890) 107 10,518 Commercial loans 13,177 (991) (4,213) 4,807 13,574 Total Commercial Banking 71,201 (22,339) (17,036) 7,103 103,473 Total $ 102,241 (11,883) (34,137) 13,834 134,427 Allowance for Credit Losses - Personal Banking: Residential mortgage loans $ 2 — — — 2 Home equity loans 39 4 — — 35 Total Personal Banking 41 4 — — 37 Commercial Banking: Commercial real estate loans 881 (2,568) — — 3,449 Commercial real estate loans - owner occupied 142 (184) — — 326 Commercial loans 1,394 (1,157) — — 2,551 Total Commercial Banking 2,417 (3,909) — — 6,326 Total off-balance-sheet exposure $ 2,458 (3,905) — — 6,363 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the year ended December 31, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands): Balance as of December 31, 2020 Current Charge-offs Recoveries Initial ACL Cumulative effect of ASU 2016-13* Balance as of December 31, 2019 Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 7,266 (3,289) (917) 362 1,095 7,441 2,574 Home equity loans 5,992 (3,357) (608) 766 216 5,786 3,189 Vehicle loans 14,825 11,416 (6,827) 1,867 235 842 7,292 Consumer loans 2,871 4,126 (5,831) 1,542 157 (2,424) 5,301 Total Personal Banking 30,954 8,896 (14,183) 4,537 1,703 11,645 18,356 Commercial Banking: Commercial real estate loans 79,381 58,483 (4,240) 1,287 5,720 2,288 15,843 Commercial real estate loans - owner occupied 10,518 2,588 (83) 27 963 1,278 5,745 Commercial loans 13,574 14,008 (16,212) 1,741 459 (4,419) 17,997 Total Commercial Banking 103,473 75,079 (20,535) 3,055 7,142 (853) 39,585 Total $ 134,427 83,975 (34,718) 7,592 8,845 10,792 57,941 Allowance for Credit Losses - Personal Banking: Residential mortgage loans $ 2 2 — — — — — Home equity loans 35 5 — — — (293) 323 Consumer loans — — — — — (402) 402 Total Personal Banking 37 7 — — — (695) 725 Commercial Banking: Commercial real estate loans 3,449 1,438 — — — 1,934 77 Commercial real estate loans - owner occupied 326 235 — — — 88 3 Commercial loans 2,551 1,459 — — — 923 169 Total Commercial Banking 6,326 3,132 — — — 2,945 249 Total off-balance-sheet exposure $ 6,363 3,139 — — — 2,250 974 * Includes the impact of the initial allowance on PCD loans of $517,000. The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the year ended December 31, 2019, prior to the adoption of ASU 2016-13 (in thousands): Balance as of December 31, 2019 Current Charge-offs Recoveries Balance as of December 31, 2018 Originated loans Personal Banking: Residential mortgage loans $ 2,463 (1,089) (935) 433 4,054 Home equity loans 2,830 46 (619) 219 3,184 Consumer loans 12,055 10,025 (11,537) 2,487 11,080 Total Personal Banking 17,348 8,982 (13,091) 3,139 18,318 Commercial Banking: Commercial real estate loans 17,292 (5,241) (5,078) 1,232 26,379 Commercial loans 16,799 12,449 (3,237) 533 7,054 Total Commercial Banking 34,091 7,208 (8,315) 1,765 33,433 Total originated loans 51,439 16,190 (21,406) 4,904 51,751 Acquired loans Personal Banking: Residential mortgage loans 111 184 (231) 75 83 Home equity loans 359 322 (502) 191 348 Consumer loans 538 156 (270) 233 419 Total Personal Banking 1,008 662 (1,003) 499 850 Commercial Banking: Commercial real estate loans 4,296 2,092 (389) 597 1,996 Commercial loans 1,198 3,715 (3,414) 280 617 Total Commercial Banking 5,494 5,807 (3,803) 877 2,613 Total acquired loans 6,502 6,469 (4,806) 1,376 3,463 Total $ 57,941 22,659 (26,212) 6,280 55,214
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 December 31, 2021 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing TDRs Allowance Additional Personal Banking: Residential mortgage loans $ 2,994,620 7,373 10,402 — 6,749 1,442 — Home equity loans 1,319,931 5,300 5,758 — 1,781 718 — Vehicle loans 1,484,231 15,483 3,263 — — — — Consumer loans 354,517 2,884 675 331 — — — Total Personal Banking 6,153,299 31,040 20,098 331 8,530 2,160 — Commercial Banking: Commercial real estate loans 2,625,481 54,141 129,666 — 17,025 2,024 400 Commercial real estate loans - owner occupied 390,003 3,883 1,233 — 159 24 — Commercial loans 847,609 13,177 7,474 — 4,574 609 60 Total Commercial Banking 3,863,093 71,201 138,373 — 21,758 2,657 460 Total $ 10,016,392 102,241 158,471 331 30,288 4,817 460 (1) Includes $17.2 million of nonaccrual TDRs. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2020 (in thousands): Total loans Allowance for Nonaccrual Loans 90 days past due and accruing TDRs Allowance Additional Personal Banking: Residential mortgage loans $ 3,068,121 7,266 15,924 — 8,431 560 — Home equity loans 1,467,736 5,992 9,123 — 2,058 381 26 Vehicle loans 1,152,673 14,825 5,533 1 — — — Consumer loans 355,320 2,871 1,031 584 1 — — Total Personal Banking 6,043,850 30,954 31,611 585 10,490 941 26 Commercial Banking: Commercial real estate loans 2,847,981 79,381 44,092 — 18,430 787 471 Commercial real estate loans - owner occupied 497,908 10,518 3,642 — 761 123 — Commercial loans 1,191,110 13,574 23,487 — 2,454 165 362 Total Commercial Banking 4,536,999 103,473 71,221 — 21,645 1,075 833 Total $ 10,580,849 134,427 102,832 585 32,135 2,016 859 (1) Includes $10.7 million of nonaccrual TDRs.
Schedule of the composition of impaired 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 year ended December 31, 2021 (in thousands): Nonaccrual December 31, 2021 Nonaccrual loans Nonaccrual Total Nonaccrual Loans 90 days Personal Banking: Residential mortgage loans $ 15,924 10,402 — 10,402 — Home equity loans 9,123 5,551 207 5,758 — Vehicle loans 5,533 3,251 12 3,263 — Consumer loans 1,031 674 1 675 331 Total Personal Banking 31,611 19,878 220 20,098 331 Commercial Banking: Commercial real estate loans 44,092 65,529 64,137 129,666 — Commercial real estate loans - owner occupied 3,642 1,233 — 1,233 — Commercial loans 23,487 3,941 3,533 7,474 — Total Commercial Banking 71,221 70,703 67,670 138,373 — Total $ 102,832 90,581 67,890 158,471 331 Nonaccrual loans at January 1, 2020 December 31, 2020 Nonaccrual loans with an allowance Nonaccrual loans with no allowance Total Nonaccrual Loans 90 days past and accruing Personal Banking: Residential mortgage loans $ 14,476 15,924 — 15,924 — Home equity loans 6,745 8,871 252 9,123 — Vehicle loans 3,147 5,377 156 5,533 1 Consumer loans 1,079 1,030 1 1,031 584 Total Personal Banking 25,447 31,202 409 31,611 585 Commercial Banking: Commercial real estate loans 18,832 27,079 17,013 44,092 — Commercial real estate loans - owner occupied 16,032 3,642 — 3,642 — Commercial loans 8,559 18,069 5,418 23,487 — Total Commercial Banking 43,423 48,790 22,431 71,221 — Total $ 68,870 79,992 22,840 102,832 585 The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2021 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 580 — — 580 Home equity loans 99 — — 99 Total Personal Banking 679 — — 679 Commercial Banking: Commercial real estate loans 119,825 1,705 — 121,530 Commercial loans 3,973 1,926 — 5,899 Total Commercial Banking 123,798 3,631 — 127,429 Total $ 124,477 3,631 — 128,108 The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2020 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 1,269 — — 1,269 Home equity loans 99 — — 99 Total Personal Banking 1,368 — — 1,368 Commercial Banking: Commercial real estate loans 79,392 1,997 1,703 83,092 Commercial loans 3,313 197 11,069 14,579 Total Commercial Banking 82,705 2,194 12,772 97,671 Total $ 84,073 2,194 12,772 99,039
Schedule of the evaluation of impaired loans by portfolio segment and by class of financing receivable
Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable	The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands): For the years ended December 31, 2021 2020 Number of Amount Number of Amount Beginning TDR balance: 170 $ 32,135 176 $ 31,999 New TDRs 9 7,253 14 1,497 Re-modified TDRs 9 7,370 5 9,693 Net paydowns — (3,420) — (9,806) Charge-offs: Residential mortgage loans — — — — Home equity loans 1 (29) 1 (10) Vehicle loans — — — — Commercial real estate loans 2 (53) — — Commercial real estate loans - owner occupied 1 (105) — — Commercial loans 6 (170) — — Paid-off loans: Residential mortgage loans 10 (1,216) 2 (330) Home equity loans 6 (147) 5 (44) Vehicle loans — — — — Commercial real estate loans 11 (3,064) 3 (321) Commercial real estate loans - owner occupied 3 (198) 2 (324) Commercial loans 5 (698) 7 (219) Ending TDR balance: 134 $ 30,288 170 $ 32,135 Accruing TDRs $ 13,072 $ 21,431 Nonaccrual TDRs 17,216 10,704 The following tables provide information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands): For the year ended December 31, 2021 Number of Recorded Current Current Personal Banking: Residential mortgage loans 1 $ 125 114 15 Home equity loans 3 155 34 34 Total Personal Banking 4 280 148 49 Commercial Banking: Commercial real estate loans 8 12,006 10,572 1,453 Commercial loans 6 4,147 3,903 451 Total Commercial Banking 14 16,153 14,475 1,904 Total 18 $ 16,433 14,623 1,953 For the year ended December 31, 2020 Number of Recorded Current Current Personal Banking: Residential mortgage loans 1 $ 90 88 5 Home equity loans 2 86 79 9 Total Personal Banking 3 176 167 14 Commercial Banking: Commercial real estate loans 9 7,365 7,615 311 Commercial real estate loans - owner occupied 1 58 48 8 Commercial loans 5 2,944 408 40 Total Commercial Banking 15 10,367 8,071 359 Total 18 $ 10,543 8,238 373 For the year ended December 31, 2019 Number of Recorded Current Current Personal Banking: Residential mortgage loans 3 $ 297 297 19 Home equity loans 5 171 165 12 Total Personal Banking 8 468 462 31 Commercial Banking: Commercial real estate loans 10 8,333 7,369 613 Commercial loans 4 221 192 21 Total Commercial Banking 14 8,554 7,561 634 Total 22 $ 9,022 8,023 665 The following table provides information as of December 31, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2021 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ 114 — — — 114 Home equity loans 3 — 30 4 — 34 Total Personal Banking 4 114 30 4 — 148 Commercial Banking: Commercial real estate loans 8 2,077 — 8,424 71 10,572 Commercial loans 6 171 — 3,732 — 3,903 Total Commercial Banking 14 2,248 — 12,156 71 14,475 Total 18 $ 2,362 30 12,160 71 14,623 The following table provides information as of December 31, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2020 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ — — 88 — 88 Home equity loans 2 65 — 14 — 79 Total Personal Banking 3 65 — 102 — 167 Commercial Banking: Commercial real estate loans 9 — — 7,335 280 7,615 Commercial real estate loans - owner occupied 1 — — 48 — 48 Commercial loans 5 — 111 217 80 408 Total Commercial Banking 15 — 111 7,600 360 8,071 Total 18 $ 65 111 7,702 360 8,238 The following table provides information as of December 31, 2019 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2019 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 3 $ — — 297 — 297 Home equity loans 5 109 — 56 — 165 Total Personal Banking 8 109 — 353 — 462 Commercial Banking: Commercial real estate loans 10 — 2,541 4,828 — 7,369 Commercial loans 4 37 — 155 — 192 Total Commercial Banking 14 37 2,541 4,983 — 7,561 Total 22 $ 146 2,541 5,336 — 8,023 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2021 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans 1 $ 114 — — — 114 Home equity loans 1 — — — — — Total Personal Banking 2 114 — — — 114 Commercial Banking: Commercial real estate loans 7 2,077 — 5,108 71 7,256 Total Commercial Banking 7 2,077 — 5,108 71 7,256 Total 9 $ 2,191 — 5,108 71 7,370 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2020 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 3 — — 6,652 — 6,652 Commercial real estate loans - owner occupied 1 48 48 Commercial loans 1 — — — 80 80 Total Commercial Banking 5 — — 6,700 80 6,780 Total 5 $ — — 6,700 80 6,780 The following table provides information related to re-modified trouble debt restructurings by portfolio segment and class of financing receivable for modifications during the year ended December 31, 2019 (in thousands): Type of re-modification Number of Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans — — — — — — Total Personal Banking — — — — — — Commercial Banking: Commercial real estate loans 7 — 219 4,448 — 4,667 Commercial loans 1 — — 38 — 38 Total Commercial Banking 8 — 219 4,486 — 4,705 Total 8 $ — 219 4,486 — 4,705 The following table provides information related to troubled debt restructurings modified within the previous twelve months of December 31, 2021 that subsequently defaulted: Number of Recorded Current Current Commercial Banking: Commercial real estate loans 1 $ 4,167 3,823 — Total Commercial Banking 1 4,167 3,823 — Total 1 $ 4,167 3,823 —
Schedule of loan delinquencies	The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2021 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 20,567 5,433 7,641 33,641 2,960,979 2,994,620 — Home equity loans 3,153 949 4,262 8,364 1,311,567 1,319,931 — Vehicle loans 5,331 1,487 1,635 8,453 1,475,778 1,484,231 — Consumer loans 1,205 519 765 2,489 352,028 354,517 331 Total Personal Banking 30,256 8,388 14,303 52,947 6,100,352 6,153,299 331 Commercial Banking: Commercial real estate loans 16,938 699 23,489 41,126 2,584,355 2,625,481 — Commercial real estate loans - owner occupied 127 70 574 771 389,232 390,003 — Commercial loans 193 727 1,105 2,025 845,584 847,609 — Total Commercial Banking 17,258 1,496 25,168 43,922 3,819,171 3,863,093 — Total loans $ 47,514 9,884 39,471 96,869 9,919,523 10,016,392 331 The following table provides information related to the amortized cost basis loan payment delinquencies at December 31, 2020 (in thousands): 30-59 days 60-89 days 90 days or Total Current Total loans 90 days or Personal Banking: Residential mortgage loans $ 28,797 5,083 14,489 48,369 3,019,752 3,068,121 — Home equity loans 4,763 1,656 8,441 14,860 1,452,876 1,467,736 — Vehicle loans 7,707 1,776 4,599 14,082 1,138,592 1,152,674 1 Consumer loans 2,867 966 1,459 5,292 350,027 355,319 584 Total Personal Banking 44,134 9,481 28,988 82,603 5,961,247 6,043,850 585 Commercial Banking: Commercial real estate loans 6,692 1,615 23,307 31,614 2,816,366 2,847,980 — Commercial real estate loans - owner occupied 4,231 — 1,980 6,211 491,698 497,909 — Commercial loans 6,405 864 7,325 14,594 1,176,516 1,191,110 — Total Commercial Banking 17,328 2,479 32,612 52,419 4,484,580 4,536,999 — Total loans $ 61,462 11,960 61,600 135,022 10,445,827 10,580,849 585
Schedule of credit quality indicators	Based on the most recent analysis performed, the amortized cost basis by risk category of loans by class of loans by origination year is as follows as of December 31, 2021 (in thousands): 2021 2020 2019 2018 2017 Prior Revolving loans Revolving loans converted to term loans Total loans Personal Banking: Residential mortgage loans Pass $ 644,862 602,429 304,275 156,639 171,240 1,098,635 — — 2,978,080 Substandard 138 489 377 538 882 14,116 — — 16,540 Total residential mortgage loans 645,000 602,918 304,652 157,177 172,122 1,112,751 — — 2,994,620 Home equity loans Pass 150,847 210,224 138,661 65,011 61,692 209,959 435,660 40,766 1,312,820 Substandard — — 441 60 455 3,820 1,275 1,060 7,111 Total home equity loans 150,847 210,224 139,102 65,071 62,147 213,779 436,935 41,826 1,319,931 Vehicle loans Pass 801,084 292,804 205,653 119,304 34,546 27,576 — — 1,480,967 Substandard 387 365 1,141 745 379 247 — — 3,264 Total vehicle loans 801,471 293,169 206,794 120,049 34,925 27,823 — — 1,484,231 Consumer loans Pass 117,856 81,266 47,195 20,595 9,794 12,202 63,025 1,578 353,511 Substandard 213 161 105 64 26 50 357 30 1,006 Total consumer loans 118,069 81,427 47,300 20,659 9,820 12,252 63,382 1,608 354,517 Total Personal Banking 1,715,387 1,187,738 697,848 362,956 279,014 1,366,605 500,317 43,434 6,153,299 Business Banking: Commercial real estate loans Pass 306,689 433,219 335,541 263,524 221,450 683,537 26,288 10,179 2,280,427 Special Mention 803 1,808 52,513 3,296 1,394 8,529 729 23 69,095 Substandard — 34,153 44,712 46,045 56,077 89,311 492 5,169 275,959 Total commercial real estate loans 307,492 469,180 432,766 312,865 278,921 781,377 27,509 15,371 2,625,481 Commercial real estate loans - owner occupied Pass 69,084 19,452 51,997 60,824 57,676 94,687 2,822 2,707 359,249 Special Mention — — — 769 1,959 1,444 856 — 5,028 Substandard — — 3,575 2,887 7,840 10,602 — 822 25,726 Total commercial real estate loans - owner occupied 69,084 19,452 55,572 64,480 67,475 106,733 3,678 3,529 390,003 Commercial loans Pass 224,367 110,171 73,276 27,668 20,748 76,987 262,805 12,301 808,323 Special Mention 197 661 812 1,195 50 581 2,234 — 5,730 Substandard 329 4,767 5,102 4,437 1,529 2,116 6,667 8,609 33,556 Total commercial loans 224,893 115,599 79,190 33,300 22,327 79,684 271,706 20,910 847,609 Total Business Banking 601,469 604,231 567,528 410,645 368,723 967,794 302,893 39,810 3,863,093 Total loans $ 2,316,856 1,791,969 1,265,376 773,601 647,737 2,334,399 803,210 83,244 10,016,392 2020 2019 2018 2017 2016 Prior Revolving loans Revolving loans converted to term loans Total loans receivable Personal Banking: Residential mortgage loans Pass $ 641,963 418,057 229,477 247,426 215,893 1,289,728 — — 3,042,544 Substandard — 68 1,293 1,674 1,091 21,451 — — 25,577 Total residential mortgage loans 641,963 418,125 230,770 249,100 216,984 1,311,179 — — 3,068,121 Home equity loans Pass 273,076 193,439 94,757 87,717 81,212 219,061 465,453 40,759 1,455,474 Substandard — 210 318 281 876 5,158 3,509 1,910 12,262 Total home equity loans 273,076 193,649 95,075 87,998 82,088 224,219 468,962 42,669 1,467,736 Vehicle loans Pass 448,746 352,661 218,372 70,122 31,197 24,791 — — 1,145,889 Substandard 343 1,958 2,087 1,210 667 519 — — 6,784 Total vehicle loans 449,089 354,619 220,459 71,332 31,864 25,310 — — 1,152,673 Consumer loans Pass 128,809 83,419 35,183 17,439 7,848 11,757 66,965 1,695 353,115 Substandard 133 399 139 192 36 619 686 1 2,205 Total consumer loans 128,942 83,818 35,322 17,631 7,884 12,376 67,651 1,696 355,320 Total Personal Banking 1,493,070 1,050,211 581,626 426,061 338,820 1,573,084 536,613 44,365 6,043,850 Business Banking: Commercial real estate loans Pass 417,390 473,115 316,045 264,702 195,168 709,459 36,980 29,755 2,442,614 Special Mention 584 3,381 20,180 24,675 15,424 15,817 597 3,048 83,706 Substandard 7,426 4,007 57,694 56,991 24,056 140,147 2,240 29,100 321,661 Total commercial real estate loans 425,400 480,503 393,919 346,368 234,648 865,423 39,817 61,903 2,847,981 Commercial real estate loans - owner occupied Pass 24,895 67,162 87,497 71,626 46,760 100,081 4,422 7,648 410,091 Special Mention — 4,371 4,514 3,643 4,276 3,689 3,822 — 24,315 Substandard — 21,627 1,903 12,898 4,013 21,777 874 410 63,502 Total commercial real estate loans - owner occupied 24,895 93,160 93,914 88,167 55,049 125,547 9,118 8,058 497,908 Commercial loans Pass 479,436 99,877 50,915 51,858 58,597 49,178 286,467 16,170 1,092,498 Special Mention 5,828 2,751 5,579 4,588 162 190 16,512 5,668 41,278 Substandard 1,660 3,343 2,932 2,016 2,266 3,003 27,988 14,126 57,334 Total commercial loans 486,924 105,971 59,426 58,462 61,025 52,371 330,967 35,964 1,191,110 Total Business Banking 937,219 679,634 547,259 492,997 350,722 1,043,341 379,902 105,925 4,536,999 Total loans $ 2,430,289 1,729,845 1,128,885 919,058 689,542 2,616,425 916,515 150,290 10,580,849
Schedule of financial instruments with off-balance-sheet risk	Financial instruments with off-balance-sheet risk as of December 31, 2021 and 2020 are presented in the following table: Years ended December 31, 2021 2020 Loans commitments $ 355,682 251,145 Undisbursed lines of credit 1,054,184 1,044,824 Standby letters of credit 45,521 45,137 Total $ 1,455,387 1,341,106
Schedule of changes in mortgage servicing rights	The following table shows changes in MSRs as of and for the years ended December 31, 2021 and 2020: Servicing rights Valuation allowance Net carrying Balance at December 31, 2019 $ 1,848 (1) 1,847 Additions 9,549 (491) 9,058 Amortization (2,740) — (2,740) Balance at December 31, 2020 8,657 (492) 8,165 Additions 4,604 481 5,085 Amortization (3,095) — (3,095) Balance at December 31, 2021 $ 10,166 (11) 10,155

Accrued Interest Receivable (Ta

Accrued Interest Receivable (Tables)	12 Months Ended
	Dec. 31, 2021
Interest Receivable and Other Assets [Abstract]
Schedule of accrued interest receivable	Accrued interest receivable as of December 31, 2021 and 2020 is presented in the following table: December 31, 2021 2020 Investment securities $ 1,591 1,660 FHLB dividends 89 197 Mortgage-backed securities 2,589 2,031 Loans receivable 21,330 31,666 $ 25,599 35,554

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Schedule of premises and equipment	Premises and equipment at December 31, 2021 and 2020 are summarized by major classification in the following table: December 31, 2021 2020 Land and land improvements $ 25,449 26,878 Office buildings and improvements 152,654 154,439 Furniture, fixtures and equipment 138,242 134,821 Leasehold improvements 20,288 18,845 Total, at cost 336,633 334,983 Less accumulated depreciation and amortization (180,109) (173,445) Premises and equipment, net $ 156,524 161,538

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets subject to amortization	The following table provides information for intangible assets subject to amortization for the years ended December 31, 2021 and 2020: December 31, 2021 2020 Amortizable intangible assets: Core deposit intangibles - gross $ 74,899 71,182 Acquisitions — 3,717 Less: accumulated amortization (62,158) (56,896) Core deposit intangibles - net $ 12,741 18,003 Customer and Contract intangible assets - gross $ 12,775 12,775 Customer list intangible assets disposed of due to sale of insurance business (1,547) — Less: accumulated amortization (11,133) (10,842) Customer and Contract intangible assets - net 95 1,933 Total intangible assets - net $ 12,836 19,936
Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets	The following information shows the actual aggregate amortization expense for the years ended December 31, 2021, 2020 and 2019 as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for each of the five succeeding fiscal years: For the year ended December 31, 2019 $ 6,543 For the year ended December 31, 2020 6,856 For the year ended December 31, 2021 5,553 For the year ending December 31, 2022 4,277 For the year ending December 31, 2023 3,270 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
Schedule of the changes in carrying amount of goodwill	The following table provides information for the changes in the carrying amount of goodwill: Total Balance at December 31, 2019 $ 346,103 Goodwill acquired 36,176 Balance at December 31, 2020 382,279 Purchase accounting adjustment 77 Goodwill disposed of due to sale of insurance business (1,359) Balance at December 31, 2021 $ 380,997

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Schedule of deposit balances	Deposit balances at December 31, 2021 and 2020 are shown in the table below: December 31, 2021 2020 Noninterest-bearing demand deposits $ 3,099,526 2,716,224 Interest-bearing demand deposits 2,940,442 2,755,950 Money market deposit accounts 2,629,882 2,437,539 Savings deposits 2,303,760 2,047,424 Time deposits 1,327,555 1,642,096 Total deposits $ 12,301,165 11,599,233
Summarizes the contractual maturity of the certificate accounts	The following table summarizes the contractual maturity of time deposits at December 31, 2021 and 2020: December 31, 2021 2020 Due within 12 months $ 890,101 990,769 Due between 12 and 24 months 288,284 380,466 Due between 24 and 36 months 80,251 164,583 Due between 36 and 48 months 33,843 64,700 Due between 48 and 60 months 29,692 36,098 After 60 months 5,384 5,480 Total time deposits $ 1,327,555 1,642,096
Summarizes the interest expense incurred on the deposits	The following table summarizes the interest expense incurred on the respective deposits for the years ended December 31, 2021, 2020 and 2019: Years ended December 31, 2021 2020 2019 Interest-bearing demand deposits $ 1,660 3,358 6,012 Money market deposit accounts 2,597 7,021 13,010 Savings deposits 2,413 2,614 3,115 Time deposits 12,452 22,903 27,079 Total interest expense on deposits $ 19,122 35,896 49,216

Borrowed Funds (Tables)

Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of borrowed funds	Borrowed funds at December 31, 2021 and 2020 are presented in the following table: December 31, 2021 2020 Amount Average rate Amount Average rate Term notes payable to the FHLB: Payable to the FHLB of Indianapolis acquired from MutualBank $ — — % $ 22,054 1.92 % Total term notes payable to the FHLB — 22,054 Collateralized borrowings, due within one year 139,093 0.19 % 137,661 0.19 % Total borrowed funds $ 139,093 $ 159,715
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 December 31, 2021 and 2020. Maturity date Interest rate Capital debt December 31, 2021 2020 Northwest Bancorp Capital Trust III December 30, 2035 3-month LIBOR plus 1.38% $ 50,000 51,547 51,547 Northwest Bancorp Statutory Trust IV December 15, 2035 3-month LIBOR plus 1.38% 50,000 51,547 51,547 LNB Trust II June 15, 2037 3-month LIBOR plus 1.48% 7,875 8,119 8,119 Union National Capital Trust I (1) January 23, 2034 3-month LIBOR plus 2.85% 8,000 7,950 7,925 Union National Capital Trust II (1) November 23, 2034 3-month LIBOR plus 2.00% 3,000 2,741 2,714 MFBC Statutory Trust I (1) September 15, 2035 3-month LIBOR plus 1.70% 5,000 3,580 3,476 Universal Preferred Trust (1) October 7, 2035 3-month LIBOR plus 1.69% 5,000 3,570 3,466 Total $ 128,875 129,054 128,794

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of allocation of income tax	Total income tax was allocated for the years ended December 31, 2021, 2020 and 2019 as follows: Years ended December 31, 2021 2020 2019 Income tax expense $ 46,801 17,672 30,679 Shareholders’ equity for unrealized gain/(loss) on securities available-for-sale (10,425) 5,061 3,992 Shareholders’ equity for pension adjustment 9,659 (3,774) (2,859) Unallocated income tax $ 46,035 18,959 31,812
Schedule of income tax expense (benefit) applicable to income before taxes	Income tax expense applicable to income before taxes consists of: Years ended December 31, 2021 2020 2019 Current $ 34,487 25,756 27,903 Deferred 12,314 (8,084) 2,776 Total income tax expense $ 46,801 17,672 30,679
Schedule of reconciliation of the expected federal statutory rate to the effective rate	A reconciliation of the expected federal statutory income tax rate to the effective rate, expressed as a percentage of pretax income for the years ended December 31, 2021, 2020 and 2019, is as follows: Years ended December 31, 2021 2020 2019 Expected tax rate 21.0 % 21.0 % 21.0 % Tax-exempt interest income (0.9) % (1.7) % (0.8) % State income tax, net of federal benefit 4.5 % 2.2 % 3.7 % Bank-owned life insurance (0.6) % (1.1) % (0.6) % Stock-based compensation (0.1) % 0.2 % (0.6) % Dividends on stock plans (0.4) % (0.9) % (0.6) % Low income housing and historic tax credits (0.2) % (0.9) % (0.5) % Other — % 0.3 % 0.1 % Effective tax rate 23.3 % 19.1 % 21.7 %
Tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2021 and 2020 are presented below: December 31, 2021 2020 Deferred tax assets: Deferred compensation expense $ 4,230 4,272 Bad debts 23,273 30,418 Other reserves 1,333 2,358 Accrued post-retirement benefit cost 900 778 Stock benefit plans 623 820 Pension and post-retirement benefits 9,747 19,405 Unrealized loss on the fair value of securities available-for-sale 4,093 — Deferred income 341 540 Lease liability 12,958 11,713 Purchase accounting 432 412 Net operating loss 2,140 2,800 Other 922 1,338 Total deferred tax assets 60,992 74,854 Deferred tax liabilities: Pension expense 6,993 6,198 Intangible assets 16,543 15,419 Mortgage servicing rights 2,278 1,831 Fixed assets 5,287 4,740 Net deferred loan costs 2,338 1,548 Right of use asset 12,322 10,844 Unrealized gain on fair value of securities available-for-sale — 6,332 Interest rate derivatives 341 1,268 Other 2,503 2,670 Total deferred tax liabilities 48,605 50,850 Net deferred tax asset $ 12,387 24,004
Summary of unrecognized tax benefits	The following table presents changes in unrecognized tax benefits at December 31, 2021, 2020 and 2019: Year ended December 31, 2021 2020 2019 Unrecognized tax benefits: Balance, beginning of year $ 331 — — Increases related to prior year tax positions 37 336 — Decreases related to prior year tax positions (173) (5) — Increases related to current year tax positions 46 — — Settlements — — — Lapse of statute — — — Balance, end of year $ 241 $ 331 —

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
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 earnings per share for the years ended December 31, 2021, 2020 and 2019. Years ended December 31, 2021 2020 2019 Net income $ 154,323 74,854 110,432 Less: Dividends and undistributed earnings allocated to participating securities 1,010 — — Net income available to common shareholders $ 153,313 74,854 110,432 Weighted average common shares outstanding (1) 126,181,586 120,244,474 104,878,774 Add: Participating shares outstanding 828,251 — 960,375 Total weighted average common shares and dilutive potential shares (1) 127,009,837 120,244,474 105,839,149 Basic earnings per share (1) $ 1.22 0.62 1.05 Diluted earnings per share (1) $ 1.21 0.62 1.04 (1) Not in thousands.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
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 components of net periodic pension cost and other amounts recognized in other comprehensive income for the years ended December 31, 2021, 2020 and 2019. Years ended December 31, 2021 2020 2019 Defined benefit pension plan: Service cost $ 11,440 8,391 5,949 Interest cost 6,070 6,855 7,353 Expected return on plan assets (13,859) (12,362) (11,037) Amortization of prior service cost (2,322) (2,322) (2,322) Amortization of the net loss 4,156 3,695 3,423 Net periodic pension cost, defined benefit pension plans 5,485 4,257 3,366 Other changes in defined benefit pension plan recognized in other comprehensive income: Net (gain)/loss (36,552) 11,521 8,235 Amortization of prior service cost 2,322 2,323 2,323 Total recognized in other comprehensive income (34,230) 13,844 10,558 Total recognized in net periodic pension cost and other comprehensive income $ (28,745) 18,101 13,924 The following table sets forth the net periodic benefit cost for the post-retirement healthcare benefits plan for the years ended December 31, 2021, 2020 and 2019: Years ended December 31, 2021 2020 2019 Interest cost $ 42 26 52 Amortization of net loss 14 18 68 Net period benefit cost $ 56 44 120
Schedule of other changes in the defined benefit pension plans' plan assets and benefit obligations recognized in other comprehensive income	The following table sets forth components of net periodic pension cost and other amounts recognized in other comprehensive income for the years ended December 31, 2021, 2020 and 2019. Years ended December 31, 2021 2020 2019 Defined benefit pension plan: Service cost $ 11,440 8,391 5,949 Interest cost 6,070 6,855 7,353 Expected return on plan assets (13,859) (12,362) (11,037) Amortization of prior service cost (2,322) (2,322) (2,322) Amortization of the net loss 4,156 3,695 3,423 Net periodic pension cost, defined benefit pension plans 5,485 4,257 3,366 Other changes in defined benefit pension plan recognized in other comprehensive income: Net (gain)/loss (36,552) 11,521 8,235 Amortization of prior service cost 2,322 2,323 2,323 Total recognized in other comprehensive income (34,230) 13,844 10,558 Total recognized in net periodic pension cost and other comprehensive income $ (28,745) 18,101 13,924 The following table sets forth other changes in the post-retirement healthcare plan’s plan assets and benefit obligations recognized in other comprehensive income: Years ended December 31, 2021 2020 2019 Net gain $ (66) (51) (475) Total recognized in other comprehensive income $ (66) (51) (475) Total recognized in net periodic benefit cost and other comprehensive loss $ (10) (7) (355)
Schedule of defined benefit pension plans' funded status	The following table sets forth information for the defined benefit pension plans’ funded status at December 31, 2021 and 2020: December 31, 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 258,589 222,497 Service cost 11,440 8,391 Interest cost 6,070 6,855 Actuarial (gain)/loss (19,834) 29,084 Benefits paid (9,331) (8,238) Benefit obligation at end of year 246,934 258,589 Change in plan assets: Fair value of plan assets at beginning of year $ 216,872 193,541 Actual return on plan assets 26,421 26,228 Employer contributions 5,476 5,341 Benefits paid (9,331) (8,238) Fair value of plan assets at end of period 239,438 216,872 Funded status at end of year $ (7,496) (41,717) The following table sets forth the funded status of the post-retirement healthcare benefit plan at December 31, 2021 and 2020: December 31, 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 1,807 889 Interest cost 42 26 Actuarial gain (53) (34) Benefits paid (236) (111) Defined benefit plan acquired from MutualBank — 1,037 Benefit obligation at end of year $ 1,560 1,807 Change in plan assets: Employer contributions $ 236 111 Benefits paid (236) (111) Funded status at year end $ (1,560) (1,807)
Schedule of assumptions used to develop the net periodic pension cost	The following table sets forth the assumptions used to develop the net periodic pension cost: Years ended December 31, 2021 2020 2019 Discount rate 2.39 % 3.14 % 4.15 % Expected long-term rate of return on assets 6.50 % 6.50 % 7.00 % Rate of increase in compensation levels 3.00 % 3.00 % 3.00 % The assumptions used to develop the preceding information for post-retirement healthcare benefits are as follows: Years ended December 31, 2021 2020 2019 Discount rate 2.39 % 3.14 % 4.15 % Monthly cost of healthcare insurance per beneficiary (1) $ 343 370 391 Annual rate of increase in healthcare costs 5.00 % 4.00 % 4.00 % (1) Not in thousands.
Schedule of assumptions used to determine benefit obligations	The following table sets forth the assumptions used to determine benefit obligations at the end of each period: Years ended December 31, 2021 2020 2019 Discount rate 2.75 % 2.39 % 3.14 % Expected long-term rate of return on assets 6.50 % 6.50 % 6.50 % Rate of increase in compensation levels 3.00 % 3.00 % 3.00 %
Schedule of certain information related to pension plans	The following table sets forth certain information related to our pension plans: December 31, 2021 2020 Projected benefit obligation $ 246,934 258,589 Accumulated benefit obligation 246,934 258,589 Fair value of plan assets 239,438 216,872
Schedule of weighted average asset allocation of defined benefit plans	The following table sets forth the weighted average asset allocation of defined benefit plans: Target December 31, allocation 2021 2020 Debt securities 20 – 50% 25 % 22 % Equity securities 30 – 60% 66 % 67 % Other 5 – 50% 9 % 11 % Total 100 % 100 %
Schedule of allocation of plan assets	The following tables sets forth the pension plan assets as of December 31, 2021 and 2020. December 31, 2021 2020 Defined benefit pension assets: Common stock $ 61,968 52,019 Mutual funds 154,676 140,746 Money market funds 11,946 15,068 Other 10,672 8,879 Total defined benefit pension plan assets (1) $ 239,262 216,712 (1) The defined benefit pension plan statement of net assets also includes accrued interest and dividends resulting in net assets available for benefits of $239.4 million and $216.9 million, respectfully.
Schedule of accumulated benefit obligation in excess of plan assets	The following table sets forth information for plans with an accumulated benefit obligation in excess of plan assets: December 31, 2021 2020 Projected benefit obligation $ 1,560 1,807 Accumulated benefit obligation 1,560 1,807
Schedule of activity under option plans	The following table summarizes the activity in our option plans during the years ended December 31, 2021, 2020 and 2019 (amounts in this table are not in thousands): Years ended December 31, 2021 2020 2019 Number Weighted average Number Weighted average Number Weighted average Balance at beginning of year 5,243,172 $ 13.72 5,101,351 $ 14.28 5,612,812 $ 13.49 Granted (1) 693,972 13.68 614,076 9.71 612,210 17.27 Exercised (2) (1,219,581) 12.28 (131,309) 11.81 (917,845) 11.77 Forfeited/expired (337,253) 14.59 (340,946) 14.39 (205,826) 14.28 Balance at end of year 4,380,310 14.05 5,243,172 13.72 5,101,351 14.28 Exercisable at end of year 2,618,733 14.15 3,350,356 13.53 2,803,918 13.36 (1) Weighted average fair value of options at grant date: $0.64, $0.13 and $1.14, respectively. (2) The total intrinsic value of options exercised was $2.3 million, $444,000 and $5.2 million, respectively.
Schedule of number of options outstanding, number of options exercisable, and weighted average remaining life of all option grants	The following table summarizes the number of options outstanding, number of options exercisable, and weighted average remaining life of all option grants as of December 31, 2021 (amounts in this table are not in thousands): Exercise price $9.71 Exercise price $11.70 Exercise price $12.37 Exercise price $12.44 Exercise price $13.15 Options outstanding: Number of options 515,674 189,338 332,520 252,951 278,012 Weighted average remaining contract life (years) 8.50 0.50 3.50 1.50 2.50 Options exercisable: Number of options 175,719 189,338 258,792 234,308 236,034 Weighted average remaining term - vested (years) 8.50 0.50 3.50 1.50 2.50 Exercise price $13.68 Exercise price $14.15 Exercise price $15.57 Exercise price $16.59 Exercise price $17.27 Total Average $14.05 Options outstanding: Number of options 664,918 441,989 540,305 681,771 482,832 4,380,310 Weighted average remaining contract life (years) 9.50 4.50 5.50 6.50 7.50 5.83 Options exercisable: Number of options 150,032 313,173 344,900 461,605 254,832 2,618,733 Weighted average remaining term - vested (years) 9.50 4.50 5.50 6.50 7.50 4.34

Disclosures About Fair Value _2

Disclosures About Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
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 December 31, 2021 and 2020: December 31, 2021 Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 1,279,259 1,279,259 1,279,259 — — Securities available-for-sale 1,548,592 1,548,592 — 1,548,592 — Securities held-to-maturity 768,154 751,513 — 751,513 — Loans receivable, net 9,889,095 9,648,825 — — 9,648,825 Residential mortgage loans held-for-sale 25,056 25,056 — — 25,056 Accrued interest receivable 25,599 25,599 25,599 — — Interest rate lock commitments 1,684 1,684 — — 1,684 Forward commitments 371 371 — 371 — Interest rate swaps not designated as hedging instruments 31,254 31,254 — 31,254 — FHLB stock 14,184 14,184 — — — Total financial assets $ 13,583,248 13,326,337 1,304,858 2,331,730 9,675,565 Financial liabilities: Savings and checking accounts $ 10,973,610 10,973,610 10,973,610 — — Time deposits 1,327,555 1,339,308 — — 1,339,308 Borrowed funds 139,093 139,093 139,093 — — Subordinated debt 123,575 129,138 — 129,138 — Junior subordinated debentures 129,054 120,083 — — 120,083 Foreign exchange swaps 341 341 — 341 — Interest rate swaps not designated as hedging instruments 31,357 31,357 — 31,357 — Risk participation agreements 60 60 — 60 — Accrued interest payable 1,804 1,804 1,804 — — Total financial liabilities $ 12,726,449 12,734,794 11,114,507 160,896 1,459,391 December 31, 2020 Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 736,277 736,277 736,277 — — Securities available-for-sale 1,398,941 1,398,941 — 1,398,941 — Securities held-to-maturity 178,887 179,666 — 179,666 — Loans receivable, net 10,387,636 10,334,521 — — 10,334,521 Residential mortgage loans held-for-sale 58,786 58,786 — — 58,786 Accrued interest receivable 35,554 35,554 35,554 — — Interest rate lock commitments 6,465 6,465 — — 6,465 Forward commitments 1,105 1,105 — 1,105 — Interest rate swaps not designated as hedging instruments 53,863 53,863 — 53,863 — FHLB stock 21,748 21,748 — — — Total financial assets $ 12,879,262 12,826,926 771,831 1,633,575 10,399,772 Financial liabilities: Savings and checking accounts $ 9,957,137 9,957,137 9,957,137 — — Time deposits 1,642,096 1,669,546 — — 1,669,546 Borrowed funds 159,715 159,745 159,745 — — Subordinated debt 123,329 123,329 — 123,329 — Junior subordinated debentures 128,794 121,106 — — 121,106 Interest rate swaps not designated as hedging instruments 54,579 54,579 — 54,579 — Risk participation agreements 86 86 — 86 — Accrued interest payable 2,054 2,054 2,054 — — Total financial liabilities $ 12,067,790 12,087,582 10,118,936 177,994 1,790,652
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 as of December 31, 2021: Level 1 Level 2 Level 3 Total at Debt securities: U.S. government and agencies $ — 75,891 — 75,891 Government sponsored enterprises — 46,085 — 46,085 States and political subdivisions — 128,701 — 128,701 Total debt securities — 250,677 — 250,677 Residential mortgage-backed securities: GNMA — 16,510 — 16,510 FNMA — 160,063 — 160,063 FHLMC — 100,055 — 100,055 Non-agency — 431 — 431 Collateralized mortgage obligations: GNMA — 492,328 — 492,328 FNMA — 269,060 — 269,060 FHLMC — 259,468 — 259,468 Total mortgage-backed securities — 1,297,915 — 1,297,915 Interest rate lock commitments — — 1,684 1,684 Forward commitments — 371 — 371 Interest rate swaps not designated as hedging instruments — 31,254 — 31,254 Total assets $ — 1,580,217 1,684 1,581,901 Foreign exchange swaps $ — 341 — 341 Interest rate swaps not designated as hedging instruments — 31,357 — 31,357 Risk participation agreements — 60 — 60 Total liabilities $ — 31,758 — 31,758 The following table represents assets and liabilities measured at fair value on a recurring basis as of December 31, 2020: Level 1 Level 2 Level 3 Total at Debt securities: U.S. government and agencies $ — 40,917 — 40,917 Government sponsored enterprises — 94,507 — 94,507 States and political subdivisions — 116,813 — 116,813 Total debt securities — 252,237 — 252,237 Residential mortgage-backed securities: GNMA — 23,026 — 23,026 FNMA — 203,571 — 203,571 FHLMC — 134,572 — 134,572 Non-agency — 465 — 465 Collateralized mortgage obligations: GNMA — 343,409 — 343,409 FNMA — 262,109 — 262,109 FHLMC — 179,552 — 179,552 Total mortgage-backed securities — 1,146,704 — 1,146,704 Interest rate lock commitments — — 6,465 6,465 Forward commitments — 1,105 — 1,105 Interest rate swaps not designated as hedging instruments — 53,863 — 53,863 Total assets $ — 1,453,909 6,465 1,460,374 Interest rate swaps not designated as hedging instruments $ — 54,579 — 54,579 Risk participation agreements — 86 — 86 Total liabilities $ — 54,665 — 54,665
Schedule of reconciliation of debt securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	December 31, 2021 and 2020: Years ended December 31, 2021 2020 Beginning balance January 1, $ 6,465 559 Total gains or losses: Included in net income — — Net activity (4,781) 5,906 Transfers from Level 3 — — Transfers into of Level 3 — — Ending balance December 31, $ 1,684 6,465
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 December 31, 2021: Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 46,968 46,968 Mortgage servicing rights — — 380 380 Real estate owned, net — — 873 873 Total assets $ — — 48,221 48,221 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, 2020: Level 1 Level 2 Level 3 Total assets Loans individually assessed $ — — 95,303 95,303 Real estate owned, net — — 2,232 2,232 Total assets $ — — 97,535 97,535
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 December 31, 2021: Fair value ($) Valuation Significant Range Loans individually assessed 46,968 Appraisal value (1) Estimated cost to sell 10% Discounted cash flow Discount rate 8.60% to 12.95% (9.61%) Mortgage servicing rights 380 Discounted cash flow Annual service cost $84 Prepayment rate 7.1% to 23.6% (11.0%) Expected life (months) 42.2 to 103.1 (72.8) Option adjusted spread 650 basis points Forward yield curve 0.09% to 1.51% Real estate owned, net 873 Appraisal value (1) Estimated cost to sell 10% Loans held for sale 25,056 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.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Schedule of actual, required, and well capitalized levels	The actual, required, and well capitalized levels as of December 31, 2021 and 2020 were as follows: At December 31, 2021 Actual Minimum capital Well capitalized Amount Ratio Amount Ratio Amount Ratio Total capital (to risk weighted assets) Northwest Bancshares, Inc. $ 1,682,487 17.056 % $ 1,035,786 10.500 % $ 986,463 10.000 % Northwest Bank 1,551,084 15.738 % 1,034,819 10.500 % 985,542 10.000 % Tier 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,475,190 14.954 % 838,494 8.500 % 789,170 8.000 % Northwest Bank 1,467,362 14.889 % 837,711 8.500 % 788,434 8.000 % CET 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,350,125 13.687 % 690,524 7.000 % 641,201 6.500 % Northwest Bank 1,467,362 14.889 % 689,879 7.000 % 640,602 6.500 % Tier 1 capital (leverage to average assets) Northwest Bancshares, Inc. 1,475,190 10.349 % 570,160 4.000 % 712,699 5.000 % Northwest Bank 1,467,362 10.296 % 570,047 4.000 % 712,558 5.000 % (1) Amounts and ratios include the 2021 capital conservation buffer of 2.5% with the exception of Tier 1 capital to average assets. For further information related to the capital conservation buffer, see “ Item 1. Business - Supervision and Regulation ” . At December 31, 2020 Actual Minimum capital Well capitalized Amount Ratio Amount Ratio Amount Ratio Total capital (to risk weighted assets) Northwest Bancshares, Inc. $ 1,654,198 16.642 % $ 1,043,693 10.500 % $ 993,993 10.000 % Northwest Bank 1,478,310 14.887 % 1,042,655 10.500 % 993,004 10.000 % Tier 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,406,321 14.148 % 844,894 8.500 % 795,195 8.000 % Northwest Bank 1,354,028 13.636 % 844,054 8.500 % 794,403 8.000 % CET 1 capital (to risk weighted assets) Northwest Bancshares, Inc. 1,281,516 12.893 % 695,795 7.000 % 646,096 6.500 % Northwest Bank 1,354,028 13.636 % 695,103 7.000 % 645,453 6.500 % Tier 1 capital (leverage to average assets) Northwest Bancshares, Inc. 1,406,321 10.145 % 554,501 4.000 % 693,126 5.000 % Northwest Bank 1,354,028 9.903 % 546,905 4.000 % 683,631 5.000 % (1) Amounts and ratios include the 2020 capital conservation buffer of 2.5% with the exception of Tier 1 capital to average assets. For further information related to the capital conservation buffer, see Item 1. Business - “ Supervision and Regulation”.

Components of Accumulated Oth_2

Components of Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of the components of accumulated other comprehensive income	The following table sets forth the components of accumulated other comprehensive loss as of December 31, 2021 and 2020: December 31, 2021 2020 Unrealized gain/(loss) on marketable securities available-for-sale $ (12,317) 16,843 Defined benefit pension plans (25,312) (50,392) Accumulated other comprehensive loss $ (37,629) (33,549)
Schedule of the changes in accumulated other comprehensive income by component	The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2021: Unrealized gains and losses on securities Change in defined Total Balance as of January 1, $ 16,843 (50,392) (33,549) Other comprehensive income/(loss) before reclassification adjustments (1), (2) (28,873) 23,748 (5,125) Amounts reclassified from accumulated other comprehensive income (3), (4) (287) 1,332 1,045 Net other comprehensive income/(loss) (29,160) 25,080 (4,080) Balance as of December 31, $ (12,317) (25,312) (37,629) (1) Consists of unrealized holding losses, net of tax of ($10,333). (2) Consists of unrealized holdings gains, net of tax $9,144. (3) Consists of realized holding losses, net of tax of ($92). (4) Consists of realized gains, net of tax of $515. The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2020: Unrealized gains and losses on securities available-for-sale Change in Change in defined Total Balance as of January 1, $ 3,147 — (40,088) (36,941) Other comprehensive income/(loss) before reclassification adjustments (1), (2), (3) 13,711 (946) (11,301) 1,464 Amounts reclassified from accumulated other comprehensive income (4), (5), (6) (15) 946 997 1,928 Net other comprehensive income/(loss) 13,696 — (10,304) 3,392 Balance as of December 31, $ 16,843 — (50,392) (33,549) (1) Consists of unrealized holding gains, net of tax of $5,607. (2) Consists of unrealized holding losses, net of tax of ($209). (3) Consists of unrealized holding losses, net of tax of ($4,169). (4) Consists of realized gains, net of tax of ($6). (5) Consists of realized losses interest rate swaps, net of tax of $209. (6) Consists of realized gains, net of tax of $395. The following table shows the changes in accumulated other comprehensive loss by component for the year ended December 31, 2019: Unrealized gains and losses on securities Change in defined benefit pension plans Total Balance as of January 1, $ (6,832) (32,864) (39,696) Other comprehensive income/(loss) before reclassification adjustments (1), (2) 9,984 (8,059) 1,925 Amounts reclassified from accumulated other comprehensive income (3), (4) (5) 835 830 Net other comprehensive income/(loss) 9,979 (7,224) 2,755 Balance as of December 31, $ 3,147 (40,088) (36,941) (1) Consists of unrealized holding gains, net of tax of $3,994. (2) Consists of unrealized holding losses, net of tax of ($3,193). (3) Consists of realized gains, net of tax of ($2). (4) Consists of realized gains, net of tax of $334.

Parent Company Only Financial_2

Parent Company Only Financial Statements - Condensed (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Schedule of statements of financial condition	Statements of Financial Condition December 31, 2021 2020 Assets Cash and cash equivalents $ 128,001 172,142 Investment in bank subsidiary 1,674,360 1,585,429 Other assets 9,199 9,352 Total assets $ 1,811,560 1,766,923 Liabilities and shareholders’ equity Liabilities: Debentures payable $ 252,629 252,123 Other liabilities 1,814 1,889 Total liabilities 254,443 254,012 Shareholders’ equity 1,557,117 1,512,911 Total liabilities and shareholders’ equity $ 1,811,560 1,766,923
Schedule of statements of income	Statements of Income Years ended December 31, 2021 2020 2019 Income: Interest income $ 87 196 209 Other income 527 553 628 Dividends from bank subsidiary 73,000 — 110,000 Undistributed earnings from equity investment in bank subsidiary 88,944 80,996 5,102 Total income 162,558 81,745 115,939 Expense: Compensation and employee benefits 1,358 1,234 1,124 Other expenses 1,033 2,241 791 Interest expense 7,870 4,933 4,833 Total expense 10,261 8,408 6,748 Income before income taxes 152,297 73,337 109,191 Income tax benefit (2,026) (1,517) (1,241) Net income $ 154,323 74,854 110,432
Schedule of statements of cash flows	Statements of Cash Flows Years ended December 31, 2021 2020 2019 Operating activities: Net income $ 154,323 74,854 110,432 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed earnings of subsidiary (88,944) (80,996) (5,102) Gain on sale of marketable securities — — (29) Net change in other assets and liabilities 597 128,287 (43,453) Net cash provided by operating activities 65,976 122,145 61,848 Investing activities: Net purchase sale of marketable securities — — — Net cash used in investing activities — — — Financing activities: Cash dividends paid on common stock (100,274) (93,132) (76,173) Repurchase of Northwest stock (23,854) (9,276) — Proceeds from stock options exercised 14,011 1,479 9,727 Net cash used in financing activities (110,117) (100,929) (66,446) Net increase/(decrease) in cash and cash equivalents $ (44,141) 21,216 (4,598) Cash and cash equivalents at beginning of period $ 172,142 150,926 155,524 Net increase/(decrease) in cash and cash equivalents (44,141) 21,216 (4,598) Cash and cash equivalents at end of period $ 128,001 172,142 150,926

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents information regarding our derivative financial instruments for the periods indicated: Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At December 31, 2021 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 644,997 31,254 644,997 31,357 Foreign exchange swap agreements — — 17,124 341 Interest rate lock commitments 67,473 1,684 — — Forward commitments 14,484 371 — — Risk participation agreements — — 93,135 60 Total derivatives $ 726,954 33,309 755,256 31,758 At December 31, 2020 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 599,300 53,863 599,300 54,579 Interest rate lock commitments 171,357 6,465 — — Forward commitments 25,474 1,105 — — Risk participation agreements — — 77,532 86 Total derivatives $ 796,131 61,433 676,832 54,665
Gain (Loss) on Derivative Instruments	The following table presents income or expenses recognized on derivatives for the periods indicated: For the years ended December 31, 2021 2020 2019 Hedging derivatives: Decrease in interest expense $ — (35) — Non-hedging swap derivatives: Increase/(decrease) in other income 1,033 (700) (63) Increase in mortgage banking income 5,515 6,867 —

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Loans Receivable and Allowance for Loan Losses and Other Narrative Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)segmentbank_location	Dec. 31, 2020USD ($)
Nature of Operations
Number of banking locations | bank_location	170
Number of reportable business segments | segment	1
Marketable Securities
Securities classified as trading	$ 0	$ 0
Debt securities held to maturity accrued interest receivable	2,200,000	1,800,000
Available for sale accrued interest receivable	1,900,000	1,900,000
Loans Receivable
Accrued interest receivable	$ 21,300,000	31,700,000
Number of days in delinquency for accrued interest on loans to be considered for reversal, minimum	90 days
Number of days delinquent for loans to be placed on non-accrual status, minimum	90 days
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	180 days
Residential mortgage loans held-for-sale	$ 25,100,000	$ 58,800,000
Number of loan segments | segment	7

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Premises and Equipment and Goodwill (Details)	12 Months Ended
	Dec. 31, 2021
Minimum
Premises and Equipment
Estimated lives	3 years
Core Deposit Intangibles
Useful life of core deposit intangibles	7 years
Maximum
Premises and Equipment
Estimated lives	39 years
Core Deposit Intangibles
Useful life of core deposit intangibles	11 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Pension Plans (Details)	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Pension benefits discount rate	2.39%

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Stock Related Compensation and Segments (Details) - USD ($) $ in Millions	May 20, 2020	May 22, 2019	May 14, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stock Related Compensation
Risk-free interest rates, maximum				2.90%
Stock options
Stock Related Compensation
Expected volatility, minimum				13.00%
Expected volatility, maximum				19.00%
Risk-free interest rates, minimum				0.70%
Number of shares awarded				693,972	614,076	612,210
Vesting period				5 years
Stock-based aggregate disclosure
Compensation expense for unvested common share awards which is yet to be recognized				$ 1.7
Stock options | Minimum
Stock Related Compensation
Dividend yields				3.90%
Expected lives				9 years
Vesting period				5 years	5 years
Stock options | Maximum
Stock Related Compensation
Dividend yields				7.50%
Expected lives				10 years
Vesting period				7 years	7 years
Stock options | Employees
Stock Related Compensation
Number of shares awarded	621,972	556,476	547,410	621,972	556,476
Stock options | Director
Stock Related Compensation
Number of shares awarded	72,000	57,600	64,800	72,000	57,600
Restricted common shares
Stock Related Compensation
Number of shares awarded				13,452
Stock-based aggregate disclosure
Stock-based employee compensation expense				$ 4.1	$ 3.5	$ 5.7
Effect of compensation expense on net income included in income before income taxes				$ 2.9	$ 2.5	$ 4.1
Restricted common shares | Minimum
Stock Related Compensation
Vesting period					5 years
Restricted common shares | Maximum
Stock Related Compensation
Vesting period					7 years
Restricted common shares | Employees
Stock Related Compensation
Number of shares awarded	293,755	261,091	256,800	307,207	261,091
Restricted common shares | Director
Stock Related Compensation
Number of shares awarded	27,000	21,600	24,300	27,000	21,600

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Rental expense	$ 6,464	$ 6,819	$ 6,200
Minimum
Lessee, Lease, Description [Line Items]
Lease renewal term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term of contract (up to)	35 years
Lease renewal term	10 years

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease costs (office operations)	$ 5,802	$ 6,139
Variable lease costs (office operations)	662	680
Total operating lease costs	$ 6,464	$ 6,819	$ 6,200

Leases - Schedule of Lease Asse

Leases - Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating lease ROU assets (other assets)	$ 54,887	$ 48,329
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Operating lease liabilities (other liabilities)	$ 57,726	$ 52,206

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flow from operating leases	$ 6,143	$ 6,204
ROU assets obtained in exchange for lease obligations	$ 12,866	$ 8,657
Weighted average remaining lease term	15 years 10 months 24 days	15 years 1 month 6 days
Weighted average discount rate	3.10%	3.40%

Leases - Schedule of Lease Matu

Leases - Schedule of Lease Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	$ 6,080
2023	5,777
2024	5,039
2025	4,822
2026	4,734
Thereafter	48,471
Total lease payments	74,923
Less amount of lease payments representing interest	17,197
Total present value of lease payments	$ 57,726	$ 52,206

Marketable Securities - Availab

Marketable Securities - Available For Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized cost
Marketable securities available-for-sale, amortized cost	$ 1,565,002	$ 1,375,685
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	8,845	24,702
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(25,255)	(1,446)
Fair value
Securities available-for-sale	1,548,592	1,398,941
U.S. government and agencies
Amortized cost
Due in one year through five years	20,000
Due after ten years	57,681	40,761
Gross unrealized holding gains
Due in one year through five years	0
Due after ten years	0	211
Gross unrealized holding losses
Due in one year through five years	(68)
Due after ten years	(1,722)	(55)
Fair value
Due in one year through five years	19,932
Due after ten years	55,959	40,917
Government sponsored enterprises
Amortized cost
Due in less than one year	177	24,976
Due in one year through five years	991	238
Due in five years through ten years	46,411	68,973
Gross unrealized holding gains
Due in less than one year	0	159
Due in one year through five years	73	3
Due in five years through ten years	1	238
Gross unrealized holding losses
Due in less than one year	0	0
Due in one year through five years	0	0
Due in five years through ten years	(1,568)	(80)
Fair value
Due in less than one year	177	25,135
Due in one year through five years	1,064	241
Due in five years through ten years	44,844	69,131
Municipal securities
Amortized cost
Due in less than one year	946	4,008
Due in one year through five years	1,261	2,803
Due in five years through ten years	23,692	16,045
Due after ten years	99,558	89,778
Gross unrealized holding gains
Due in less than one year	13	14
Due in one year through five years	22	63
Due in five years through ten years	661	429
Due after ten years	2,884	3,752
Gross unrealized holding losses
Due in less than one year	0	0
Due in one year through five years	(3)	(2)
Due in five years through ten years	(146)	(5)
Due after ten years	(187)	(72)
Fair value
Due in less than one year	959	4,022
Due in one year through five years	1,280	2,864
Due in five years through ten years	24,207	16,469
Due after ten years	102,255	93,458
Residential mortgage-backed securities
Amortized cost
Due in less than one year	490
Due in one year through five years	14,013
Due in five years through ten years	89,594
Due after ten years	1,210,188
Marketable securities available-for-sale, amortized cost	1,314,285	1,128,103
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	5,191	19,833
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(21,561)	(1,232)
Fair value
Due in less than one year	491
Due in one year through five years	14,126
Due in five years through ten years	89,948
Due after ten years	1,193,350
Securities available-for-sale	1,297,915	1,146,704
Fixed rate | Pass-through
Amortized cost
Marketable securities available-for-sale, amortized cost	265,604	339,406
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	2,389	7,125
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(2,525)	(86)
Fair value
Securities available-for-sale	265,468	346,445
Fixed rate | Agency CMOs
Amortized cost
Marketable securities available-for-sale, amortized cost	997,680	723,586
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	2,284	11,758
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(18,965)	(1,093)
Fair value
Securities available-for-sale	980,999	734,251
Variable rate | Pass-through
Amortized cost
Marketable securities available-for-sale, amortized cost	11,306	14,778
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	294	431
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(9)	(20)
Fair value
Securities available-for-sale	11,591	15,189
Variable rate | Agency CMOs
Amortized cost
Marketable securities available-for-sale, amortized cost	39,695	50,333
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	224	519
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(62)	(33)
Fair value
Securities available-for-sale	$ 39,857	$ 50,819

Marketable Securities - Held To

Marketable Securities - Held To Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized cost
Amortized cost	$ 768,154	$ 178,887
Gross unrealized holding gains
Gross unrealized holding gains	350	904
Gross unrealized holding losses
Gross unrealized holding losses	(16,991)	(125)
Fair value
Fair value	751,513	179,666
U.S. government sponsored enterprises
Amortized cost
Due in five years through ten years	107,973	67,990
Gross unrealized holding gains
Due in five years through ten years	0	12
Gross unrealized holding losses
Due in five years through ten years	(4,613)	(123)
Fair value
Due in five years through ten years	103,360	67,879
U.S. government sponsored enterprises | Pass-through
Amortized cost
Due in one year through five years	16,478
Gross unrealized holding gains
Due in one year through five years	0
Gross unrealized holding losses
Due in one year through five years	(206)
Fair value
Due in one year through five years	16,272
Residential mortgage-backed securities
Amortized cost
Due in one year through five years	792
Due in five years through ten years	40,494
Amortized cost	643,703	110,897
Gross unrealized holding gains
Gross unrealized holding gains	350	892
Gross unrealized holding losses
Gross unrealized holding losses	(12,172)	(2)
Fair value
Due in one year through five years	833
Due in five years through ten years	38,817
Fair value	631,881	111,787
Fixed rate | Pass-through
Amortized cost
Amortized cost	183,092	1,723
Gross unrealized holding gains
Gross unrealized holding gains	58	131
Gross unrealized holding losses
Gross unrealized holding losses	(2,161)	0
Fair value
Fair value	180,989	1,854
Fixed rate | Agency CMOs
Amortized cost
Amortized cost	459,345	107,651
Gross unrealized holding gains
Gross unrealized holding gains	251	716
Gross unrealized holding losses
Gross unrealized holding losses	(10,011)	(2)
Fair value
Fair value	449,585	108,365
Variable rate | Pass-through
Amortized cost
Amortized cost	667	919
Gross unrealized holding gains
Gross unrealized holding gains	24	30
Gross unrealized holding losses
Gross unrealized holding losses	0	0
Fair value
Fair value	691	949
Variable rate | Agency CMOs
Amortized cost
Amortized cost	599	604
Gross unrealized holding gains
Gross unrealized holding gains	17	15
Gross unrealized holding losses
Gross unrealized holding losses	0	0
Fair value
Fair value	$ 616	$ 619

Marketable Securities - Avail_2

Marketable Securities - Available-for-sale, by Contractual Maturity (Details) - Residential mortgage-backed securities $ in Thousands	Dec. 31, 2021USD ($)
Marketable Securities, Available-for-sale [Line Items]
Due in less than one year	$ 490
Due in one year through five years	14,013
Due after five years through ten years	89,594
Due after ten years	1,210,188
Total residential mortgage-backed securities	1,314,285
Fair value
Due in less than one year	491
Due in one year through five years	14,126
Due in five years through ten years	89,948
Due after ten years	1,193,350
Total residential mortgage-backed securities	$ 1,297,915

Marketable Securities - Held _2

Marketable Securities - Held To Maturity, by Contractual Maturity (Details) - Residential mortgage-backed securities $ in Thousands	Dec. 31, 2021USD ($)
Amortized cost
Due in one year through five years	$ 792
Due in five years through ten years	40,494
Due after ten years	602,417
Total residential mortgage-backed securities	643,703
Fair value
Due in one year through five years	833
Due in five years through ten years	38,817
Due after ten years	592,231
Total residential mortgage-backed securities	$ 631,881

Marketable Securities - Issuers

Marketable Securities - Issuers and the Carrying Values of Mortgage-Backed Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Marketable Securities
Carrying value of marketable securities pledged	$ 227,500,000
Proceeds from sale of marketable securities available-for-sale	59,579,000	$ 1,096,000	$ 32,389,000
Realized gains	410,000	64,000	29,000
Realized losses	396,000	0	0
Amounts recognized in allowance for credit losses for marketable securities	0	0
Other-than-temporary impairment loss			$ 0
Residential mortgage-backed securities
Marketable Securities
Total residential mortgage-backed securities	1,941,618,000	1,257,601,000
FNMA
Marketable Securities
Total residential mortgage-backed securities	704,070,000	532,532,000
GNMA
Marketable Securities
Total residential mortgage-backed securities	577,684,000	367,354,000
FHLMC
Marketable Securities
Total residential mortgage-backed securities	659,433,000	357,249,000
Other (including non-agency)
Marketable Securities
Total residential mortgage-backed securities	$ 431,000	$ 466,000

Marketable Securities - Fair Va

Marketable Securities - Fair Value and Gross Unrealized Losses on Marketable Securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)position	Dec. 31, 2020USD ($)
Marketable Securities
Less than 12 months - Fair value	$ 1,586,482	$ 372,833
Less than 12 months - Unrealized loss	(30,356)	(1,460)
12 months or more - Fair value	290,549	7,456
12 months or more - Unrealized loss	(11,890)	(111)
Total - Fair value	1,877,031	380,289
Total - Unrealized loss	$ (42,246)	(1,571)
Number of investments that are temporarily impaired | position	245
U.S. government sponsored enterprises
Marketable Securities
Less than 12 months - Fair value	$ 132,782	67,809
Less than 12 months - Unrealized loss	(3,504)	(179)
12 months or more - Fair value	106,160	1,923
12 months or more - Unrealized loss	(4,673)	(80)
Total - Fair value	238,942	69,732
Total - Unrealized loss	(8,177)	(259)
Municipal securities
Marketable Securities
Less than 12 months - Fair value	25,118	4,257
Less than 12 months - Unrealized loss	(336)	(79)
12 months or more - Fair value	0	0
12 months or more - Unrealized loss	0	0
Total - Fair value	25,118	4,257
Total - Unrealized loss	(336)	(79)
Residential mortgage-backed securities | Agency CMOs
Marketable Securities
Less than 12 months - Fair value	1,428,582	300,767
Less than 12 months - Unrealized loss	(26,516)	(1,202)
12 months or more - Fair value	184,389	5,533
12 months or more - Unrealized loss	(7,217)	(31)
Total - Fair value	1,612,971	306,300
Total - Unrealized loss	$ (33,733)	$ (1,233)

Marketable Securities - Held-to

Marketable Securities - Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Marketable Securities, Available-for-sale [Line Items]
Held-to-maturity securities:	$ 768,154	$ 178,887
AA+
Marketable Securities, Available-for-sale [Line Items]
Held-to-maturity securities:	768,154
Residential mortgage-backed securities | AA+
Marketable Securities, Available-for-sale [Line Items]
Held-to-maturity securities:	643,703
U.S. government sponsored enterprises | AA+
Marketable Securities, Available-for-sale [Line Items]
Held-to-maturity securities:	$ 124,451

Loans Receivable - Summary of O

Loans Receivable - Summary of Originated and Acquired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses
Total loans receivable, gross	$ 10,016,392	$ 10,580,849
Allowance for credit losses	(102,241)	(134,427)	$ (57,941)	$ (55,214)
Total loans receivable, net	9,914,151	10,446,422
Loans held-for-sale	25,056	58,786
Unearned income, unamortized premiums and discounts and deferred fees and costs	62,800	40,900
Personal Banking:
Allowance for loan losses
Total loans receivable, gross	6,153,299	6,043,850
Allowance for credit losses	(31,040)	(30,954)	(18,356)
Personal Banking: | Residential mortgage loans
Allowance for loan losses
Total loans receivable, gross	2,994,620	3,068,121
Allowance for credit losses	(7,373)	(7,266)	(2,574)
Personal Banking: | Home equity loans
Allowance for loan losses
Total loans receivable, gross	1,319,931	1,467,736
Allowance for credit losses	(5,300)	(5,992)	(3,189)
Personal Banking: | Vehicle loans
Allowance for loan losses
Total loans receivable, gross	1,484,231	1,152,673
Allowance for credit losses	(15,483)	(14,825)	(7,292)
Personal Banking: | Consumer loans
Allowance for loan losses
Total loans receivable, gross	354,517	355,320
Allowance for credit losses	(2,884)	(2,871)	(5,301)
Commercial Banking:
Allowance for loan losses
Total loans receivable, gross	3,863,093	4,536,999
Allowance for credit losses	(71,201)	(103,473)	(39,585)
Commercial Banking: | Commercial real estate loans
Allowance for loan losses
Total loans receivable, gross	2,625,481	2,847,981
Allowance for credit losses	(54,141)	(79,381)	(15,843)
Commercial Banking: | Commercial real estate loans - owner occupied
Allowance for loan losses
Total loans receivable, gross	390,003	497,908
Allowance for credit losses	(3,883)	(10,518)	(5,745)
Commercial Banking: | Commercial loans
Allowance for loan losses
Total loans receivable, gross	847,609	1,191,110
Allowance for credit losses	(13,177)	(13,574)	(17,997)
Originated
Allowance for loan losses
Total loans receivable, gross	8,872,025	8,799,008
Allowance for credit losses	(86,750)	(102,874)	(51,439)	(51,751)
Total loans receivable, net	8,785,275	8,696,134
Originated | Personal Banking:
Allowance for loan losses
Total loans receivable, gross	5,582,868	5,212,402
Allowance for credit losses			(17,348)	(18,318)
Originated | Personal Banking: | Residential mortgage loans
Allowance for loan losses
Total loans receivable, gross	2,783,459	2,753,593
Allowance for credit losses			(2,463)	(4,054)
Originated | Personal Banking: | Home equity loans
Allowance for loan losses
Total loans receivable, gross	1,107,202	1,175,703
Allowance for credit losses			(2,830)	(3,184)
Originated | Personal Banking: | Vehicle loans
Allowance for loan losses
Total loans receivable, gross	1,384,246	995,040
Originated | Personal Banking: | Consumer loans
Allowance for loan losses
Total loans receivable, gross	307,961	288,066
Allowance for credit losses			(12,055)	(11,080)
Originated | Commercial Banking:
Allowance for loan losses
Total loans receivable, gross	3,289,157	3,586,606
Allowance for credit losses			(34,091)	(33,433)
Originated | Commercial Banking: | Commercial real estate loans
Allowance for loan losses
Total loans receivable, gross	2,202,027	2,223,108
Allowance for credit losses			(17,292)	(26,379)
Originated | Commercial Banking: | Commercial real estate loans - owner occupied
Allowance for loan losses
Total loans receivable, gross	321,253	344,016
Originated | Commercial Banking: | Commercial loans
Allowance for loan losses
Total loans receivable, gross	765,877	1,019,482
Allowance for credit losses			(16,799)	(7,054)
Acquired
Allowance for loan losses
Total loans receivable, gross	1,144,367	1,781,841
Allowance for credit losses	(15,491)	(31,553)	(6,502)	(3,463)
Total loans receivable, net	1,128,876	1,750,288
Acquired | Personal Banking:
Allowance for loan losses
Total loans receivable, gross	570,431	831,448
Allowance for credit losses			(1,008)	(850)
Acquired | Personal Banking: | Residential mortgage loans
Allowance for loan losses
Total loans receivable, gross	211,161	314,528
Allowance for credit losses			(111)	(83)
Acquired | Personal Banking: | Home equity loans
Allowance for loan losses
Total loans receivable, gross	212,729	292,033
Allowance for credit losses			(359)	(348)
Acquired | Personal Banking: | Vehicle loans
Allowance for loan losses
Total loans receivable, gross	99,985	157,633
Acquired | Personal Banking: | Consumer loans
Allowance for loan losses
Total loans receivable, gross	46,556	67,254
Acquired | Personal Banking: | Commercial loans
Allowance for loan losses
Allowance for credit losses			(538)	(419)
Acquired | Commercial Banking:
Allowance for loan losses
Total loans receivable, gross	573,936	950,393
Allowance for credit losses			(5,494)	(2,613)
Acquired | Commercial Banking: | Commercial real estate loans
Allowance for loan losses
Total loans receivable, gross	423,454	624,873
Allowance for credit losses			(4,296)	(1,996)
Acquired | Commercial Banking: | Commercial real estate loans - owner occupied
Allowance for loan losses
Total loans receivable, gross	68,750	153,892
Acquired | Commercial Banking: | Commercial loans
Allowance for loan losses
Total loans receivable, gross	$ 81,732	$ 171,628
Allowance for credit losses			$ (1,198)	$ (617)

Loans Receivable - Narrative (D

Loans Receivable - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)contract	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Credit quality indicators
Serviced loans for others	$ 1,622,000	$ 1,516,000	$ 793,100
Percentage of loan portfolio secured by properties located in Pennsylvania	41.00%	42.00%
Adjustable rate loans	$ 3,277,000	$ 3,690,000
Fixed rate loans	6,739,000	6,840,000
Allowance for loan and lease losses		50,000
Gain on sale of loans	0	1,302	$ 1,734
Interest income recognized on impaired loans	$ 803	$ 842,000
Number of contracts | contract	1	0	0
Total loans receivable, gross	$ 10,016,392	$ 10,580,849
Revolving loans converted to term loans during the period	27,300	23,100
Loans commitments
Credit quality indicators
Outstanding loan commitments for fixed rate loans	185,300
Outstanding loan commitments for adjustable rate loans	150,300
Standby letters of credit
Credit quality indicators
Maximum potential amount of future payments	45,500
Maximum potential amount of future payments fully collateralized	35,800
Liability recognized for the obligations	500,000	$ 493,000
Minimum | Special mention or substandard
Credit quality indicators
Total loans receivable, gross	$ 1,000

Loans Receivable - Changes in t

Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in allowance for losses on allocated loans receivable
Beginning balance	$ 134,427	$ 57,941	$ 55,214
Current period provision	(11,883)	83,975	22,659
Charge-offs	(34,137)	(34,718)	(26,212)
Recoveries	13,834	7,592	6,280
Initial ACL on loans purchased with credit deterioration		8,845
Ending balance	102,241	134,427	57,941
Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		10,792
Initial ACL on loans purchased with credit deterioration		517
Ending balance			10,792
Personal Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance	30,954	18,356
Current period provision	10,456	8,896
Charge-offs	(17,101)	(14,183)
Recoveries	6,731	4,537
Initial ACL on loans purchased with credit deterioration		1,703
Ending balance	31,040	30,954	18,356
Personal Banking: | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		11,645
Ending balance			11,645
Personal Banking: | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	7,266	2,574
Current period provision	2,844	(3,289)
Charge-offs	(3,672)	(917)
Recoveries	935	362
Initial ACL on loans purchased with credit deterioration		1,095
Ending balance	7,373	7,266	2,574
Personal Banking: | Residential mortgage loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		7,441
Ending balance			7,441
Personal Banking: | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,992	3,189
Current period provision	1,788	(3,357)
Charge-offs	(3,380)	(608)
Recoveries	900	766
Initial ACL on loans purchased with credit deterioration		216
Ending balance	5,300	5,992	3,189
Personal Banking: | Home equity loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		5,786
Ending balance			5,786
Personal Banking: | Vehicle loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	14,825	7,292
Current period provision	2,754	11,416
Charge-offs	(4,632)	(6,827)
Recoveries	2,536	1,867
Initial ACL on loans purchased with credit deterioration		235
Ending balance	15,483	14,825	7,292
Personal Banking: | Vehicle loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		842
Ending balance			842
Personal Banking: | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,871	5,301
Current period provision	3,070	4,126
Charge-offs	(5,417)	(5,831)
Recoveries	2,360	1,542
Initial ACL on loans purchased with credit deterioration		157
Ending balance	2,884	2,871	5,301
Personal Banking: | Consumer loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(2,424)
Ending balance			(2,424)
Commercial Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance	103,473	39,585
Current period provision	(22,339)	75,079
Charge-offs	(17,036)	(20,535)
Recoveries	7,103	3,055
Initial ACL on loans purchased with credit deterioration		7,142
Ending balance	71,201	103,473	39,585
Commercial Banking: | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(853)
Ending balance			(853)
Commercial Banking: | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	79,381	15,843
Current period provision	(15,496)	58,483
Charge-offs	(11,933)	(4,240)
Recoveries	2,189	1,287
Initial ACL on loans purchased with credit deterioration		5,720
Ending balance	54,141	79,381	15,843
Commercial Banking: | Commercial real estate loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,288
Ending balance			2,288
Commercial Banking: | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	10,518	5,745
Current period provision	(5,852)	2,588
Charge-offs	(890)	(83)
Recoveries	107	27
Initial ACL on loans purchased with credit deterioration		963
Ending balance	3,883	10,518	5,745
Commercial Banking: | Commercial real estate loans - owner occupied | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		1,278
Ending balance			1,278
Commercial Banking: | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	13,574	17,997
Current period provision	(991)	14,008
Charge-offs	(4,213)	(16,212)
Recoveries	4,807	1,741
Initial ACL on loans purchased with credit deterioration		459
Ending balance	13,177	13,574	17,997
Commercial Banking: | Commercial loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(4,419)
Ending balance			(4,419)
Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	6,363	974
Current period provision	(3,905)	3,139
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	2,458	6,363	974
Off-Balance Sheet Exposure | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,250
Ending balance			2,250
Off-Balance Sheet Exposure | Personal Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance	37	725
Current period provision	4	7
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	41	37	725
Off-Balance Sheet Exposure | Personal Banking: | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(695)
Ending balance			(695)
Off-Balance Sheet Exposure | Personal Banking: | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	2	0
Current period provision	0	2
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	2	2	0
Off-Balance Sheet Exposure | Personal Banking: | Residential mortgage loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		0
Ending balance			0
Off-Balance Sheet Exposure | Personal Banking: | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	35	323
Current period provision	4	5
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	39	35	323
Off-Balance Sheet Exposure | Personal Banking: | Home equity loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(293)
Ending balance			(293)
Off-Balance Sheet Exposure | Personal Banking: | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	0	402
Current period provision		0
Charge-offs		0
Recoveries		0
Initial ACL on loans purchased with credit deterioration		0
Ending balance		0	402
Off-Balance Sheet Exposure | Personal Banking: | Consumer loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		(402)
Ending balance			(402)
Off-Balance Sheet Exposure | Commercial Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance	6,326	249
Current period provision	(3,909)	3,132
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	2,417	6,326	249
Off-Balance Sheet Exposure | Commercial Banking: | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,945
Ending balance			2,945
Off-Balance Sheet Exposure | Commercial Banking: | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	3,449	77
Current period provision	(2,568)	1,438
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	881	3,449	77
Off-Balance Sheet Exposure | Commercial Banking: | Commercial real estate loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		1,934
Ending balance			1,934
Off-Balance Sheet Exposure | Commercial Banking: | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	326	3
Current period provision	(184)	235
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	142	326	3
Off-Balance Sheet Exposure | Commercial Banking: | Commercial real estate loans - owner occupied | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		88
Ending balance			88
Off-Balance Sheet Exposure | Commercial Banking: | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,551	169
Current period provision	(1,157)	1,459
Charge-offs	0	0
Recoveries	0	0
Initial ACL on loans purchased with credit deterioration		0
Ending balance	1,394	2,551	169
Off-Balance Sheet Exposure | Commercial Banking: | Commercial loans | Cumulative Effect, Period of Adoption, Adjustment
Changes in allowance for losses on allocated loans receivable
Beginning balance		923
Ending balance			923
Originated
Changes in allowance for losses on allocated loans receivable
Beginning balance	102,874	51,439	51,751
Current period provision			16,190
Charge-offs			(21,406)
Recoveries			4,904
Ending balance	86,750	102,874	51,439
Originated | Personal Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance		17,348	18,318
Current period provision			8,982
Charge-offs			(13,091)
Recoveries			3,139
Ending balance			17,348
Originated | Personal Banking: | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,463	4,054
Current period provision			(1,089)
Charge-offs			(935)
Recoveries			433
Ending balance			2,463
Originated | Personal Banking: | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,830	3,184
Current period provision			46
Charge-offs			(619)
Recoveries			219
Ending balance			2,830
Originated | Personal Banking: | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		12,055	11,080
Current period provision			10,025
Charge-offs			(11,537)
Recoveries			2,487
Ending balance			12,055
Originated | Commercial Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance		34,091	33,433
Current period provision			7,208
Charge-offs			(8,315)
Recoveries			1,765
Ending balance			34,091
Originated | Commercial Banking: | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		17,292	26,379
Current period provision			(5,241)
Charge-offs			(5,078)
Recoveries			1,232
Ending balance			17,292
Originated | Commercial Banking: | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		16,799	7,054
Current period provision			12,449
Charge-offs			(3,237)
Recoveries			533
Ending balance			16,799
Acquired
Changes in allowance for losses on allocated loans receivable
Beginning balance	31,553	6,502	3,463
Current period provision			6,469
Charge-offs			(4,806)
Recoveries			1,376
Ending balance	$ 15,491	31,553	6,502
Acquired | Personal Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance		1,008	850
Current period provision			662
Charge-offs			(1,003)
Recoveries			499
Ending balance			1,008
Acquired | Personal Banking: | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		111	83
Current period provision			184
Charge-offs			(231)
Recoveries			75
Ending balance			111
Acquired | Personal Banking: | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		359	348
Current period provision			322
Charge-offs			(502)
Recoveries			191
Ending balance			359
Acquired | Personal Banking: | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		538	419
Current period provision			156
Charge-offs			(270)
Recoveries			233
Ending balance			538
Acquired | Commercial Banking:
Changes in allowance for losses on allocated loans receivable
Beginning balance		5,494	2,613
Current period provision			5,807
Charge-offs			(3,803)
Recoveries			877
Ending balance			5,494
Acquired | Commercial Banking: | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		4,296	1,996
Current period provision			2,092
Charge-offs			(389)
Recoveries			597
Ending balance			4,296
Acquired | Commercial Banking: | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		$ 1,198	617
Current period provision			3,715
Charge-offs			(3,414)
Recoveries			280
Ending balance			$ 1,198

Loans Receivable - Loan Portfol

Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	$ 10,016,392	$ 10,580,849
Allowance for credit losses	102,241	134,427	$ 57,941	$ 55,214
Nonaccrual loans	158,471	102,832	68,870
Loans 90 days past due and accruing	331	585
TDRs	30,288	32,135
Allowance related to TDRs	4,817	2,016
Additional commitments to customers with loans classified as TDRs	460	859
Nonaccrual TDRs	17,216	10,704
Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	6,153,299	6,043,850
Allowance for credit losses	31,040	30,954	18,356
Nonaccrual loans	20,098	31,611	25,447
Loans 90 days past due and accruing	331	585
TDRs	8,530	10,490
Allowance related to TDRs	2,160	941
Additional commitments to customers with loans classified as TDRs	0	26
Personal Banking: | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	2,994,620	3,068,121
Allowance for credit losses	7,373	7,266	2,574
Nonaccrual loans	10,402	15,924	14,476
Loans 90 days past due and accruing	0	0
TDRs	6,749	8,431
Allowance related to TDRs	1,442	560
Additional commitments to customers with loans classified as TDRs	0	0
Personal Banking: | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	1,319,931	1,467,736
Allowance for credit losses	5,300	5,992	3,189
Nonaccrual loans	5,758	9,123	6,745
Loans 90 days past due and accruing	0	0
TDRs	1,781	2,058
Allowance related to TDRs	718	381
Additional commitments to customers with loans classified as TDRs	0	26
Personal Banking: | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	1,484,231	1,152,673
Allowance for credit losses	15,483	14,825	7,292
Nonaccrual loans	3,263	5,533	3,147
Loans 90 days past due and accruing	0	1
TDRs	0	0
Allowance related to TDRs	0	0
Additional commitments to customers with loans classified as TDRs	0	0
Personal Banking: | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	354,517	355,320
Allowance for credit losses	2,884	2,871	5,301
Nonaccrual loans	675	1,031	1,079
Loans 90 days past due and accruing	331
TDRs	0
Allowance related to TDRs	0
Additional commitments to customers with loans classified as TDRs	0
Personal Banking: | Consumer Loan, Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross		355,320
Allowance for credit losses		2,871
Nonaccrual loans		1,031
Loans 90 days past due and accruing		584
TDRs		1
Allowance related to TDRs		0
Additional commitments to customers with loans classified as TDRs		0
Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	3,863,093	4,536,999
Allowance for credit losses	71,201	103,473	39,585
Nonaccrual loans	138,373	71,221	43,423
Loans 90 days past due and accruing	0	0
TDRs	21,758	21,645
Allowance related to TDRs	2,657	1,075
Additional commitments to customers with loans classified as TDRs	460	833
Commercial Banking: | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	2,625,481	2,847,981
Allowance for credit losses	54,141	79,381	15,843
Nonaccrual loans	129,666	44,092	18,832
Loans 90 days past due and accruing	0
TDRs	17,025
Allowance related to TDRs	2,024
Additional commitments to customers with loans classified as TDRs	400
Commercial Banking: | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	390,003	497,908
Allowance for credit losses	3,883	10,518	5,745
Nonaccrual loans	1,233	3,642	16,032
Loans 90 days past due and accruing	0	0
TDRs	159	761
Allowance related to TDRs	24	123
Additional commitments to customers with loans classified as TDRs	0	0
Commercial Banking: | Commercial Real Estate, Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross		2,847,981
Allowance for credit losses		79,381
Nonaccrual loans		44,092
Loans 90 days past due and accruing		0
TDRs		18,430
Allowance related to TDRs		787
Additional commitments to customers with loans classified as TDRs		471
Commercial Banking: | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total loans receivable, gross	847,609	1,191,110
Allowance for credit losses	13,177	13,574	17,997
Nonaccrual loans	7,474	23,487	$ 8,559
Loans 90 days past due and accruing	0	0
TDRs	4,574	2,454
Allowance related to TDRs	609	165
Additional commitments to customers with loans classified as TDRs	$ 60	$ 362

Loans Receivable - Composition

Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	$ 102,832	$ 68,870
Nonaccrual loans	90,581	79,992
Nonaccrual loans with no allowance	67,890	22,840
Nonaccrual loans at ending balance	158,471	102,832
Loans 90 days past due and accruing	331	585
Amortized cost basis of collateral-dependent loans	128,108	99,039
Interest income recognized on impaired loans	803	842,000
Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	31,611	25,447
Nonaccrual loans	19,878	31,202
Nonaccrual loans with no allowance	220	409
Nonaccrual loans at ending balance	20,098	31,611
Loans 90 days past due and accruing	331	585
Amortized cost basis of collateral-dependent loans	679	1,368
Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	71,221	43,423
Nonaccrual loans	70,703	48,790
Nonaccrual loans with no allowance	67,670	22,431
Nonaccrual loans at ending balance	138,373	71,221
Loans 90 days past due and accruing	0	0
Amortized cost basis of collateral-dependent loans	127,429	97,671
Residential mortgage loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	15,924	14,476
Nonaccrual loans	10,402	15,924
Nonaccrual loans with no allowance	0	0
Nonaccrual loans at ending balance	10,402	15,924
Loans 90 days past due and accruing	0	0
Amortized cost basis of collateral-dependent loans	580	1,269
Home equity loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	9,123	6,745
Nonaccrual loans	5,551	8,871
Nonaccrual loans with no allowance	207	252
Nonaccrual loans at ending balance	5,758	9,123
Loans 90 days past due and accruing	0	0
Amortized cost basis of collateral-dependent loans	99	99
Vehicle loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	5,533	3,147
Nonaccrual loans	3,251	5,377
Nonaccrual loans with no allowance	12	156
Nonaccrual loans at ending balance	3,263	5,533
Loans 90 days past due and accruing	0	1
Consumer loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	1,031	1,079
Nonaccrual loans	674	1,030
Nonaccrual loans with no allowance	1	1
Nonaccrual loans at ending balance	675	1,031
Loans 90 days past due and accruing	331	584
Commercial real estate loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	44,092	18,832
Nonaccrual loans	65,529	27,079
Nonaccrual loans with no allowance	64,137	17,013
Nonaccrual loans at ending balance	129,666	44,092
Loans 90 days past due and accruing	0	0
Amortized cost basis of collateral-dependent loans	121,530	83,092
Commercial real estate loans - owner occupied | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	3,642	16,032
Nonaccrual loans	1,233	3,642
Nonaccrual loans with no allowance	0	0
Nonaccrual loans at ending balance	1,233	3,642
Loans 90 days past due and accruing	0	0
Commercial loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans at beginning balance	23,487	8,559
Nonaccrual loans	3,941	18,069
Nonaccrual loans with no allowance	3,533	5,418
Nonaccrual loans at ending balance	7,474	23,487
Loans 90 days past due and accruing	0	0
Amortized cost basis of collateral-dependent loans	5,899	14,579
Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	124,477	84,073
Real estate | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	679	1,368
Real estate | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	123,798	82,705
Real estate | Residential mortgage loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	580	1,269
Real estate | Home equity loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	99	99
Real estate | Commercial real estate loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	119,825	79,392
Real estate | Commercial loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,973	3,313
Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,631	2,194
Equipment | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Equipment | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,631	2,194
Equipment | Residential mortgage loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Equipment | Home equity loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Equipment | Commercial real estate loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,705	1,997
Equipment | Commercial loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,926	197
Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	12,772
Other | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Other | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	12,772
Other | Residential mortgage loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Other | Home equity loans | Personal Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0
Other | Commercial real estate loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	1,703
Other | Commercial loans | Commercial Banking:
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	$ 0	$ 11,069

Loans Receivable - Roll Forward

Loans Receivable - Roll Forward of Troubled Debt Restructurings (Details)	12 Months Ended
	Dec. 31, 2021USD ($)contract	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Number of contract
Beginning balance | contract	170	176
Number of contracts new TDRs | contract	9	14
Number of re-modified TDRs | contract	9	5	8
Number of contracts net paydowns	0	0
Ending balance | contract	134	170	176
Roll forward of troubled debt restructurings
Beginning TDR balance:	$ 32,135,000	$ 31,999,000
New TDRs	7,253,000	1,497,000
Re-modified TDRs	7,370,000	9,693,000
Net paydowns	(3,420,000)	(9,806,000)
Ending TDR balance:	30,288,000	32,135,000	$ 31,999,000
Accruing TDRs	13,072,000	21,431,000
Nonaccrual TDRs	$ 17,216,000	$ 10,704,000
Residential mortgage loans
Number of contract
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	10	2
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ (1,216,000)	$ (330,000)
Home equity loans
Number of contract
Number of contracts charged off | contract	1	1
Number of contracts paid off | contract	6	5
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ (29,000)	$ (10,000)
Amount of contracts paid off	$ (147,000)	$ (44,000)
Vehicle loans
Number of contract
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	0	0
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ 0	$ 0
Commercial real estate loans
Number of contract
Number of contracts charged off | contract	2	0
Number of contracts paid off | contract	11	3
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ (53,000)	$ 0
Amount of contracts paid off	$ (3,064,000)	$ (321,000)
Commercial real estate loans - owner occupied
Number of contract
Number of contracts charged off | contract	1	0
Number of contracts paid off | contract	3	2
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ (105,000)	$ 0
Amount of contracts paid off	$ (198,000)	$ (324,000)
Commercial loans
Number of contract
Number of contracts charged off | contract	6	0
Number of contracts paid off | contract	5	7
Roll forward of troubled debt restructurings
Amount of contracts charged off	$ (170,000)	$ 0
Amount of contracts paid off	$ (698,000)	$ (219,000)

Loans Receivable - Troubled Deb

Loans Receivable - Troubled Debt Restructuring (Including Re-Modified TDRs) by Portfolio Segment and by Class of Financing Receivable (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)contract	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	18	18	22
Recorded investment at the time of modification	$ 16,433	$ 10,543	$ 9,022
Current recorded investment	14,623	8,238	8,023
Current allowance	$ 1,953	$ 373	$ 665
Personal Banking:
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	4	3	8
Recorded investment at the time of modification	$ 280	$ 176	$ 468
Current recorded investment	148	167	462
Current allowance	$ 49	$ 14	$ 31
Personal Banking: | Residential mortgage loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	1	1	3
Recorded investment at the time of modification	$ 125	$ 90	$ 297
Current recorded investment	114	88	297
Current allowance	$ 15	$ 5	$ 19
Personal Banking: | Home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	3	2	5
Recorded investment at the time of modification	$ 155	$ 86	$ 171
Current recorded investment	34	79	165
Current allowance	$ 34	$ 9	$ 12
Commercial Banking:
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	14	15	14
Recorded investment at the time of modification	$ 16,153	$ 10,367	$ 8,554
Current recorded investment	14,475	8,071	7,561
Current allowance	$ 1,904	$ 359	$ 634
Commercial Banking: | Commercial real estate loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	8	9	10
Recorded investment at the time of modification	$ 12,006	$ 7,365	$ 8,333
Current recorded investment	10,572	7,615	7,369
Current allowance	$ 1,453	$ 311	$ 613
Commercial Banking: | Commercial real estate loans - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract		1
Recorded investment at the time of modification		$ 58
Current recorded investment		48
Current allowance		$ 8
Commercial Banking: | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	6	5	4
Recorded investment at the time of modification	$ 4,147	$ 2,944	$ 221
Current recorded investment	3,903	408	192
Current allowance	$ 451	$ 40	$ 21

Loans Receivable - Troubled D_2

Loans Receivable - Troubled Debt Restructurings by Type of Modification (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)contract	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Troubled debt restructurings
Number of contracts | contract	18	18	22
Type of modification	$ 14,623	$ 8,238	$ 8,023
Number of re-modified TDRs | contract	9	5	8
Type of re-modification	$ 7,370	$ 6,780	$ 4,705
Number of contracts | contract	1	0	0
Recorded investment at the time of modification	$ 4,167
Current recorded investment	3,823
Current allowance	0
Rate
Troubled debt restructurings
Type of modification	2,362	$ 65	$ 146
Type of re-modification	2,191	0	0
Payment
Troubled debt restructurings
Type of modification	30	111	2,541
Type of re-modification	0	0	219
Maturity date
Troubled debt restructurings
Type of modification	12,160	7,702	5,336
Type of re-modification	5,108	6,700	4,486
Other
Troubled debt restructurings
Type of modification	71	360	0
Type of re-modification	$ 71	$ 80	$ 0
Personal Banking:
Troubled debt restructurings
Number of contracts | contract	4	3	8
Type of modification	$ 148	$ 167	$ 462
Number of re-modified TDRs | contract	2	0	0
Type of re-modification	$ 114	$ 0	$ 0
Personal Banking: | Rate
Troubled debt restructurings
Type of modification	114	65	109
Type of re-modification	114	0	0
Personal Banking: | Payment
Troubled debt restructurings
Type of modification	30	0	0
Type of re-modification	0	0	0
Personal Banking: | Maturity date
Troubled debt restructurings
Type of modification	4	102	353
Type of re-modification	0	0	0
Personal Banking: | Other
Troubled debt restructurings
Type of modification	0	0	0
Type of re-modification	$ 0	$ 0	$ 0
Personal Banking: | Residential mortgage loans
Troubled debt restructurings
Number of contracts | contract	1	1	3
Type of modification	$ 114	$ 88	$ 297
Number of re-modified TDRs | contract	1	0	0
Type of re-modification	$ 114	$ 0	$ 0
Personal Banking: | Residential mortgage loans | Rate
Troubled debt restructurings
Type of modification	114	0	0
Type of re-modification	114	0	0
Personal Banking: | Residential mortgage loans | Payment
Troubled debt restructurings
Type of modification	0	0	0
Type of re-modification	0	0	0
Personal Banking: | Residential mortgage loans | Maturity date
Troubled debt restructurings
Type of modification	0	88	297
Type of re-modification	0	0	0
Personal Banking: | Residential mortgage loans | Other
Troubled debt restructurings
Type of modification	0	0	0
Type of re-modification	$ 0	$ 0	$ 0
Personal Banking: | Home equity loans
Troubled debt restructurings
Number of contracts | contract	3	2	5
Type of modification	$ 34	$ 79	$ 165
Number of re-modified TDRs | contract	1	0	0
Type of re-modification	$ 0	$ 0	$ 0
Personal Banking: | Home equity loans | Rate
Troubled debt restructurings
Type of modification	0	65	109
Type of re-modification	0	0	0
Personal Banking: | Home equity loans | Payment
Troubled debt restructurings
Type of modification	30	0	0
Type of re-modification	0	0	0
Personal Banking: | Home equity loans | Maturity date
Troubled debt restructurings
Type of modification	4	14	56
Type of re-modification	0	0	0
Personal Banking: | Home equity loans | Other
Troubled debt restructurings
Type of modification	0	0	0
Type of re-modification	$ 0	$ 0	$ 0
Commercial Banking:
Troubled debt restructurings
Number of contracts | contract	14	15	14
Type of modification	$ 14,475	$ 8,071	$ 7,561
Number of re-modified TDRs | contract	7	5	8
Type of re-modification	$ 7,256	$ 6,780	$ 4,705
Number of contracts | contract	1
Recorded investment at the time of modification	$ 4,167
Current recorded investment	3,823
Current allowance	0
Commercial Banking: | Rate
Troubled debt restructurings
Type of modification	2,248	0	37
Type of re-modification	2,077	0	0
Commercial Banking: | Payment
Troubled debt restructurings
Type of modification	0	111	2,541
Type of re-modification	0	0	219
Commercial Banking: | Maturity date
Troubled debt restructurings
Type of modification	12,156	7,600	4,983
Type of re-modification	5,108	6,700	4,486
Commercial Banking: | Other
Troubled debt restructurings
Type of modification	71	360	0
Type of re-modification	$ 71	$ 80	$ 0
Commercial Banking: | Commercial real estate loans
Troubled debt restructurings
Number of contracts | contract	8	9	10
Type of modification	$ 10,572	$ 7,615	$ 7,369
Number of re-modified TDRs | contract	7	3	7
Type of re-modification	$ 7,256	$ 6,652	$ 4,667
Number of contracts | contract	1
Recorded investment at the time of modification	$ 4,167
Current recorded investment	3,823
Current allowance	0
Commercial Banking: | Commercial real estate loans | Rate
Troubled debt restructurings
Type of modification	2,077	0	0
Type of re-modification	2,077	0	0
Commercial Banking: | Commercial real estate loans | Payment
Troubled debt restructurings
Type of modification	0	0	2,541
Type of re-modification	0	0	219
Commercial Banking: | Commercial real estate loans | Maturity date
Troubled debt restructurings
Type of modification	8,424	7,335	4,828
Type of re-modification	5,108	6,652	4,448
Commercial Banking: | Commercial real estate loans | Other
Troubled debt restructurings
Type of modification	71	280	0
Type of re-modification	$ 71	$ 0	$ 0
Commercial Banking: | Commercial real estate loans - owner occupied
Troubled debt restructurings
Number of contracts | contract		1
Type of modification		$ 48
Number of re-modified TDRs | contract		1
Type of re-modification		$ 48
Commercial Banking: | Commercial real estate loans - owner occupied | Rate
Troubled debt restructurings
Type of modification		0
Type of re-modification
Commercial Banking: | Commercial real estate loans - owner occupied | Payment
Troubled debt restructurings
Type of modification		0
Type of re-modification
Commercial Banking: | Commercial real estate loans - owner occupied | Maturity date
Troubled debt restructurings
Type of modification		48
Type of re-modification		48
Commercial Banking: | Commercial real estate loans - owner occupied | Other
Troubled debt restructurings
Type of modification		0
Type of re-modification
Commercial Banking: | Commercial loans
Troubled debt restructurings
Number of contracts | contract	6	5	4
Type of modification	$ 3,903	$ 408	$ 192
Number of re-modified TDRs | contract		1	1
Type of re-modification		$ 80	$ 38
Commercial Banking: | Commercial loans | Rate
Troubled debt restructurings
Type of modification	171	0	37
Type of re-modification		0	0
Commercial Banking: | Commercial loans | Payment
Troubled debt restructurings
Type of modification	0	111	0
Type of re-modification		0	0
Commercial Banking: | Commercial loans | Maturity date
Troubled debt restructurings
Type of modification	3,732	217	155
Type of re-modification		0	38
Commercial Banking: | Commercial loans | Other
Troubled debt restructurings
Type of modification	$ 0	80	0
Type of re-modification		$ 80	$ 0

Loans Receivable - Loan Delinqu

Loans Receivable - Loan Delinquencies (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loan payment delinquencies
Total loans receivable	$ 10,016,392
90 days or greater delinquent and accruing	331	$ 585
Total delinquency
Loan payment delinquencies
Total loans receivable	96,869
30-59 days delinquent
Loan payment delinquencies
Total loans receivable	47,514
60-89 days delinquent
Loan payment delinquencies
Total loans receivable	9,884
90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	39,471
Current
Loan payment delinquencies
Total loans receivable	9,919,523
Personal Banking:
Loan payment delinquencies
Total loans receivable	6,153,299
90 days or greater delinquent and accruing	331	585
Personal Banking: | Total delinquency
Loan payment delinquencies
Total loans receivable	52,947
Personal Banking: | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	30,256
Personal Banking: | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	8,388
Personal Banking: | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	14,303
Personal Banking: | Current
Loan payment delinquencies
Total loans receivable	6,100,352
Personal Banking: | Residential mortgage loans
Loan payment delinquencies
Total loans receivable	2,994,620
90 days or greater delinquent and accruing	0	0
Personal Banking: | Residential mortgage loans | Total delinquency
Loan payment delinquencies
Total loans receivable	33,641
Personal Banking: | Residential mortgage loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	20,567
Personal Banking: | Residential mortgage loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	5,433
Personal Banking: | Residential mortgage loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	7,641
Personal Banking: | Residential mortgage loans | Current
Loan payment delinquencies
Total loans receivable	2,960,979
Personal Banking: | Home equity loans
Loan payment delinquencies
Total loans receivable	1,319,931
90 days or greater delinquent and accruing	0	0
Personal Banking: | Home equity loans | Total delinquency
Loan payment delinquencies
Total loans receivable	8,364
Personal Banking: | Home equity loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	3,153
Personal Banking: | Home equity loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	949
Personal Banking: | Home equity loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	4,262
Personal Banking: | Home equity loans | Current
Loan payment delinquencies
Total loans receivable	1,311,567
Personal Banking: | Vehicle loans
Loan payment delinquencies
Total loans receivable	1,484,231	1,152,674
90 days or greater delinquent and accruing	0	1
Personal Banking: | Vehicle loans | Total delinquency
Loan payment delinquencies
Total loans receivable	8,453	14,082
Personal Banking: | Vehicle loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	5,331	7,707
Personal Banking: | Vehicle loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,487	1,776
Personal Banking: | Vehicle loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	1,635	4,599
Personal Banking: | Vehicle loans | Current
Loan payment delinquencies
Total loans receivable	1,475,778	1,138,592
Personal Banking: | Consumer loans
Loan payment delinquencies
Total loans receivable	354,517
90 days or greater delinquent and accruing	331	584
Personal Banking: | Consumer loans | Total delinquency
Loan payment delinquencies
Total loans receivable	2,489
Personal Banking: | Consumer loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	1,205
Personal Banking: | Consumer loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	519
Personal Banking: | Consumer loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	765
Personal Banking: | Consumer loans | Current
Loan payment delinquencies
Total loans receivable	352,028
Commercial Banking:
Loan payment delinquencies
Total loans receivable	3,863,093
90 days or greater delinquent and accruing	0	0
Commercial Banking: | Total delinquency
Loan payment delinquencies
Total loans receivable	43,922
Commercial Banking: | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	17,258
Commercial Banking: | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,496
Commercial Banking: | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	25,168
Commercial Banking: | Current
Loan payment delinquencies
Total loans receivable	3,819,171
Commercial Banking: | Commercial real estate loans
Loan payment delinquencies
Total loans receivable	2,625,481
90 days or greater delinquent and accruing	0	0
Commercial Banking: | Commercial real estate loans | Total delinquency
Loan payment delinquencies
Total loans receivable	41,126
Commercial Banking: | Commercial real estate loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	16,938
Commercial Banking: | Commercial real estate loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	699
Commercial Banking: | Commercial real estate loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	23,489
Commercial Banking: | Commercial real estate loans | Current
Loan payment delinquencies
Total loans receivable	2,584,355
Commercial Banking: | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total loans receivable	390,003	497,909
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	771	6,211
Commercial Banking: | Commercial real estate loans - owner occupied | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	127	4,231
Commercial Banking: | Commercial real estate loans - owner occupied | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	70	0
Commercial Banking: | Commercial real estate loans - owner occupied | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	574	1,980
Commercial Banking: | Commercial real estate loans - owner occupied | Current
Loan payment delinquencies
Total loans receivable	389,232	491,698
Commercial Banking: | Commercial loans
Loan payment delinquencies
Total loans receivable	847,609
90 days or greater delinquent and accruing	0	0
Commercial Banking: | Commercial loans | Total delinquency
Loan payment delinquencies
Total loans receivable	2,025
Commercial Banking: | Commercial loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	193
Commercial Banking: | Commercial loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	727
Commercial Banking: | Commercial loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	1,105
Commercial Banking: | Commercial loans | Current
Loan payment delinquencies
Total loans receivable	$ 845,584
Originated
Loan payment delinquencies
Total loans receivable		10,580,849
90 days or greater delinquent and accruing		585
Originated | Total delinquency
Loan payment delinquencies
Total loans receivable		135,022
Originated | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		61,462
Originated | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		11,960
Originated | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		61,600
Originated | Current
Loan payment delinquencies
Total loans receivable		10,445,827
Originated | Personal Banking:
Loan payment delinquencies
Total loans receivable		6,043,850
90 days or greater delinquent and accruing		585
Originated | Personal Banking: | Total delinquency
Loan payment delinquencies
Total loans receivable		82,603
Originated | Personal Banking: | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		44,134
Originated | Personal Banking: | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		9,481
Originated | Personal Banking: | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		28,988
Originated | Personal Banking: | Current
Loan payment delinquencies
Total loans receivable		5,961,247
Originated | Personal Banking: | Residential mortgage loans
Loan payment delinquencies
Total loans receivable		3,068,121
90 days or greater delinquent and accruing		0
Originated | Personal Banking: | Residential mortgage loans | Total delinquency
Loan payment delinquencies
Total loans receivable		48,369
Originated | Personal Banking: | Residential mortgage loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		28,797
Originated | Personal Banking: | Residential mortgage loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		5,083
Originated | Personal Banking: | Residential mortgage loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		14,489
Originated | Personal Banking: | Residential mortgage loans | Current
Loan payment delinquencies
Total loans receivable		3,019,752
Originated | Personal Banking: | Home equity loans
Loan payment delinquencies
Total loans receivable		1,467,736
90 days or greater delinquent and accruing		0
Originated | Personal Banking: | Home equity loans | Total delinquency
Loan payment delinquencies
Total loans receivable		14,860
Originated | Personal Banking: | Home equity loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		4,763
Originated | Personal Banking: | Home equity loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		1,656
Originated | Personal Banking: | Home equity loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		8,441
Originated | Personal Banking: | Home equity loans | Current
Loan payment delinquencies
Total loans receivable		1,452,876
Originated | Personal Banking: | Consumer loans
Loan payment delinquencies
Total loans receivable		355,319
90 days or greater delinquent and accruing		584
Originated | Personal Banking: | Consumer loans | Total delinquency
Loan payment delinquencies
Total loans receivable		5,292
Originated | Personal Banking: | Consumer loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		2,867
Originated | Personal Banking: | Consumer loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		966
Originated | Personal Banking: | Consumer loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		1,459
Originated | Personal Banking: | Consumer loans | Current
Loan payment delinquencies
Total loans receivable		350,027
Originated | Commercial Banking:
Loan payment delinquencies
Total loans receivable		4,536,999
90 days or greater delinquent and accruing		0
Originated | Commercial Banking: | Total delinquency
Loan payment delinquencies
Total loans receivable		52,419
Originated | Commercial Banking: | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		17,328
Originated | Commercial Banking: | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		2,479
Originated | Commercial Banking: | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		32,612
Originated | Commercial Banking: | Current
Loan payment delinquencies
Total loans receivable		4,484,580
Originated | Commercial Banking: | Commercial real estate loans
Loan payment delinquencies
Total loans receivable		2,847,980
90 days or greater delinquent and accruing		0
Originated | Commercial Banking: | Commercial real estate loans | Total delinquency
Loan payment delinquencies
Total loans receivable		31,614
Originated | Commercial Banking: | Commercial real estate loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		6,692
Originated | Commercial Banking: | Commercial real estate loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		1,615
Originated | Commercial Banking: | Commercial real estate loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		23,307
Originated | Commercial Banking: | Commercial real estate loans | Current
Loan payment delinquencies
Total loans receivable		2,816,366
Originated | Commercial Banking: | Commercial loans
Loan payment delinquencies
Total loans receivable		1,191,110
90 days or greater delinquent and accruing		0
Originated | Commercial Banking: | Commercial loans | Total delinquency
Loan payment delinquencies
Total loans receivable		14,594
Originated | Commercial Banking: | Commercial loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable		6,405
Originated | Commercial Banking: | Commercial loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable		864
Originated | Commercial Banking: | Commercial loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable		7,325
Originated | Commercial Banking: | Commercial loans | Current
Loan payment delinquencies
Total loans receivable		$ 1,176,516

Loans Receivable - Credit Quali

Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Credit quality indicators
Year one	$ 2,316,856	$ 2,430,289
2020	1,791,969	1,729,845
2019	1,265,376	1,128,885
2018	773,601	919,058
2017	647,737	689,542
Prior	2,334,399	2,616,425
Revolving loans	803,210	916,515
Revolving loans converted to term loans	83,244	150,290
Total loans receivable, gross	10,016,392	10,580,849
Personal Banking:
Credit quality indicators
Year one	1,715,387	1,493,070
2020	1,187,738	1,050,211
2019	697,848	581,626
2018	362,956	426,061
2017	279,014	338,820
Prior	1,366,605	1,573,084
Revolving loans	500,317	536,613
Revolving loans converted to term loans	43,434	44,365
Total loans receivable, gross	6,153,299	6,043,850
Personal Banking: | Residential mortgage loans
Credit quality indicators
Year one	645,000	641,963
2020	602,918	418,125
2019	304,652	230,770
2018	157,177	249,100
2017	172,122	216,984
Prior	1,112,751	1,311,179
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	2,994,620	3,068,121
Personal Banking: | Residential mortgage loans | Pass
Credit quality indicators
Year one	644,862	641,963
2020	602,429	418,057
2019	304,275	229,477
2018	156,639	247,426
2017	171,240	215,893
Prior	1,098,635	1,289,728
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	2,978,080	3,042,544
Personal Banking: | Residential mortgage loans | Substandard
Credit quality indicators
Year one	138	0
2020	489	68
2019	377	1,293
2018	538	1,674
2017	882	1,091
Prior	14,116	21,451
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	16,540	25,577
Personal Banking: | Home equity loans
Credit quality indicators
Year one	150,847	273,076
2020	210,224	193,649
2019	139,102	95,075
2018	65,071	87,998
2017	62,147	82,088
Prior	213,779	224,219
Revolving loans	436,935	468,962
Revolving loans converted to term loans	41,826	42,669
Total loans receivable, gross	1,319,931	1,467,736
Personal Banking: | Home equity loans | Pass
Credit quality indicators
Year one	150,847	273,076
2020	210,224	193,439
2019	138,661	94,757
2018	65,011	87,717
2017	61,692	81,212
Prior	209,959	219,061
Revolving loans	435,660	465,453
Revolving loans converted to term loans	40,766	40,759
Total loans receivable, gross	1,312,820	1,455,474
Personal Banking: | Home equity loans | Substandard
Credit quality indicators
Year one	0	0
2020	0	210
2019	441	318
2018	60	281
2017	455	876
Prior	3,820	5,158
Revolving loans	1,275	3,509
Revolving loans converted to term loans	1,060	1,910
Total loans receivable, gross	7,111	12,262
Personal Banking: | Vehicle loans
Credit quality indicators
Year one	801,471	449,089
2020	293,169	354,619
2019	206,794	220,459
2018	120,049	71,332
2017	34,925	31,864
Prior	27,823	25,310
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	1,484,231	1,152,673
Personal Banking: | Vehicle loans | Pass
Credit quality indicators
Year one	801,084	448,746
2020	292,804	352,661
2019	205,653	218,372
2018	119,304	70,122
2017	34,546	31,197
Prior	27,576	24,791
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	1,480,967	1,145,889
Personal Banking: | Vehicle loans | Substandard
Credit quality indicators
Year one	387	343
2020	365	1,958
2019	1,141	2,087
2018	745	1,210
2017	379	667
Prior	247	519
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	3,264	6,784
Personal Banking: | Consumer loans
Credit quality indicators
Year one	118,069	128,942
2020	81,427	83,818
2019	47,300	35,322
2018	20,659	17,631
2017	9,820	7,884
Prior	12,252	12,376
Revolving loans	63,382	67,651
Revolving loans converted to term loans	1,608	1,696
Total loans receivable, gross	354,517	355,320
Personal Banking: | Consumer loans | Pass
Credit quality indicators
Year one	117,856	128,809
2020	81,266	83,419
2019	47,195	35,183
2018	20,595	17,439
2017	9,794	7,848
Prior	12,202	11,757
Revolving loans	63,025	66,965
Revolving loans converted to term loans	1,578	1,695
Total loans receivable, gross	353,511	353,115
Personal Banking: | Consumer loans | Substandard
Credit quality indicators
Year one	213	133
2020	161	399
2019	105	139
2018	64	192
2017	26	36
Prior	50	619
Revolving loans	357	686
Revolving loans converted to term loans	30	1
Total loans receivable, gross	1,006	2,205
Commercial Banking:
Credit quality indicators
Year one	601,469	937,219
2020	604,231	679,634
2019	567,528	547,259
2018	410,645	492,997
2017	368,723	350,722
Prior	967,794	1,043,341
Revolving loans	302,893	379,902
Revolving loans converted to term loans	39,810	105,925
Total loans receivable, gross	3,863,093	4,536,999
Commercial Banking: | Commercial real estate loans
Credit quality indicators
Year one	307,492	425,400
2020	469,180	480,503
2019	432,766	393,919
2018	312,865	346,368
2017	278,921	234,648
Prior	781,377	865,423
Revolving loans	27,509	39,817
Revolving loans converted to term loans	15,371	61,903
Total loans receivable, gross	2,625,481	2,847,981
Commercial Banking: | Commercial real estate loans | Pass
Credit quality indicators
Year one	306,689	417,390
2020	433,219	473,115
2019	335,541	316,045
2018	263,524	264,702
2017	221,450	195,168
Prior	683,537	709,459
Revolving loans	26,288	36,980
Revolving loans converted to term loans	10,179	29,755
Total loans receivable, gross	2,280,427	2,442,614
Commercial Banking: | Commercial real estate loans | Special Mention
Credit quality indicators
Year one	803	584
2020	1,808	3,381
2019	52,513	20,180
2018	3,296	24,675
2017	1,394	15,424
Prior	8,529	15,817
Revolving loans	729	597
Revolving loans converted to term loans	23	3,048
Total loans receivable, gross	69,095	83,706
Commercial Banking: | Commercial real estate loans | Substandard
Credit quality indicators
Year one	0	7,426
2020	34,153	4,007
2019	44,712	57,694
2018	46,045	56,991
2017	56,077	24,056
Prior	89,311	140,147
Revolving loans	492	2,240
Revolving loans converted to term loans	5,169	29,100
Total loans receivable, gross	275,959	321,661
Commercial Banking: | Commercial real estate loans - owner occupied
Credit quality indicators
Year one	69,084	24,895
2020	19,452	93,160
2019	55,572	93,914
2018	64,480	88,167
2017	67,475	55,049
Prior	106,733	125,547
Revolving loans	3,678	9,118
Revolving loans converted to term loans	3,529	8,058
Total loans receivable, gross	390,003	497,908
Commercial Banking: | Commercial real estate loans - owner occupied | Pass
Credit quality indicators
Year one	69,084	24,895
2020	19,452	67,162
2019	51,997	87,497
2018	60,824	71,626
2017	57,676	46,760
Prior	94,687	100,081
Revolving loans	2,822	4,422
Revolving loans converted to term loans	2,707	7,648
Total loans receivable, gross	359,249	410,091
Commercial Banking: | Commercial real estate loans - owner occupied | Special Mention
Credit quality indicators
Year one	0	0
2020	0	4,371
2019	0	4,514
2018	769	3,643
2017	1,959	4,276
Prior	1,444	3,689
Revolving loans	856	3,822
Revolving loans converted to term loans	0	0
Total loans receivable, gross	5,028	24,315
Commercial Banking: | Commercial real estate loans - owner occupied | Substandard
Credit quality indicators
Year one	0	0
2020	0	21,627
2019	3,575	1,903
2018	2,887	12,898
2017	7,840	4,013
Prior	10,602	21,777
Revolving loans	0	874
Revolving loans converted to term loans	822	410
Total loans receivable, gross	25,726	63,502
Commercial Banking: | Commercial loans
Credit quality indicators
Year one	224,893	486,924
2020	115,599	105,971
2019	79,190	59,426
2018	33,300	58,462
2017	22,327	61,025
Prior	79,684	52,371
Revolving loans	271,706	330,967
Revolving loans converted to term loans	20,910	35,964
Total loans receivable, gross	847,609	1,191,110
Commercial Banking: | Commercial loans | Pass
Credit quality indicators
Year one	224,367	479,436
2020	110,171	99,877
2019	73,276	50,915
2018	27,668	51,858
2017	20,748	58,597
Prior	76,987	49,178
Revolving loans	262,805	286,467
Revolving loans converted to term loans	12,301	16,170
Total loans receivable, gross	808,323	1,092,498
Commercial Banking: | Commercial loans | Special Mention
Credit quality indicators
Year one	197	5,828
2020	661	2,751
2019	812	5,579
2018	1,195	4,588
2017	50	162
Prior	581	190
Revolving loans	2,234	16,512
Revolving loans converted to term loans	0	5,668
Total loans receivable, gross	5,730	41,278
Commercial Banking: | Commercial loans | Substandard
Credit quality indicators
Year one	329	1,660
2020	4,767	3,343
2019	5,102	2,932
2018	4,437	2,016
2017	1,529	2,266
Prior	2,116	3,003
Revolving loans	6,667	27,988
Revolving loans converted to term loans	8,609	14,126
Total loans receivable, gross	33,556	57,334
Originated
Credit quality indicators
Total loans receivable, gross	8,872,025	8,799,008
Originated | Personal Banking:
Credit quality indicators
Total loans receivable, gross	5,582,868	5,212,402
Originated | Personal Banking: | Residential mortgage loans
Credit quality indicators
Total loans receivable, gross	2,783,459	2,753,593
Originated | Personal Banking: | Home equity loans
Credit quality indicators
Total loans receivable, gross	1,107,202	1,175,703
Originated | Personal Banking: | Vehicle loans
Credit quality indicators
Total loans receivable, gross	1,384,246	995,040
Originated | Personal Banking: | Consumer loans
Credit quality indicators
Total loans receivable, gross	307,961	288,066
Originated | Commercial Banking:
Credit quality indicators
Total loans receivable, gross	3,289,157	3,586,606
Originated | Commercial Banking: | Commercial real estate loans
Credit quality indicators
Total loans receivable, gross	2,202,027	2,223,108
Originated | Commercial Banking: | Commercial real estate loans - owner occupied
Credit quality indicators
Total loans receivable, gross	321,253	344,016
Originated | Commercial Banking: | Commercial loans
Credit quality indicators
Total loans receivable, gross	765,877	1,019,482
Acquired
Credit quality indicators
Total loans receivable, gross	1,144,367	1,781,841
Acquired | Personal Banking:
Credit quality indicators
Total loans receivable, gross	570,431	831,448
Acquired | Personal Banking: | Residential mortgage loans
Credit quality indicators
Total loans receivable, gross	211,161	314,528
Acquired | Personal Banking: | Home equity loans
Credit quality indicators
Total loans receivable, gross	212,729	292,033
Acquired | Personal Banking: | Vehicle loans
Credit quality indicators
Total loans receivable, gross	99,985	157,633
Acquired | Personal Banking: | Consumer loans
Credit quality indicators
Total loans receivable, gross	46,556	67,254
Acquired | Commercial Banking:
Credit quality indicators
Total loans receivable, gross	573,936	950,393
Acquired | Commercial Banking: | Commercial real estate loans
Credit quality indicators
Total loans receivable, gross	423,454	624,873
Acquired | Commercial Banking: | Commercial real estate loans - owner occupied
Credit quality indicators
Total loans receivable, gross	68,750	153,892
Acquired | Commercial Banking: | Commercial loans
Credit quality indicators
Total loans receivable, gross	$ 81,732	$ 171,628

Loans Receivable - Off-Balance

Loans Receivable - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial instruments with off-balance-sheet risk
Financial instruments with off-balance-sheet risk	$ 1,455,387	$ 1,341,106
Loans commitments
Financial instruments with off-balance-sheet risk
Financial instruments with off-balance-sheet risk	355,682	251,145
Undisbursed lines of credit
Financial instruments with off-balance-sheet risk
Financial instruments with off-balance-sheet risk	1,054,184	1,044,824
Standby letters of credit
Financial instruments with off-balance-sheet risk
Financial instruments with off-balance-sheet risk	$ 45,521	$ 45,137

Loans Receivable - Mortgage Ser

Loans Receivable - Mortgage Servicing Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Servicing rights
Servicing rights, beginning balance	$ 8,657	$ 1,848
Additions	4,604	9,549
Amortization	(3,095)	(2,740)
Servicing rights, ending balance	10,166	8,657
Valuation allowance
Valuation allowance, beginning balance	(492)	(1)
Additions	481	(491)
Valuation allowance, ending balance	(11)	(492)
Net carrying value and fair value
Net carrying and fair value, beginning balance	8,165	1,847
Additions	5,085	9,058
Amortization	(3,095)	(2,740)
Net carrying and fair value, ending balance	$ 10,155	$ 8,165

Accrued Interest Receivable (De

Accrued Interest Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Interest Receivable and Other Assets [Abstract]
Investment securities	$ 1,591	$ 1,660
FHLB dividends	89	197
Mortgage-backed securities	2,589	2,031
Loans receivable	21,330	31,666
Accrued interest receivable	$ 25,599	$ 35,554

FHLB Stock (Details)

FHLB Stock (Details)	12 Months Ended
	Dec. 31, 2021USD ($)subclass	Dec. 31, 2020USD ($)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Number of subclasses of capital stock required to invest in for membership | subclass	2
Dividend received on capital stock | $	$ 407,000	$ 981,000
Federal Home Loan Bank of Pittsburgh
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Number of subclasses of capital stock required to invest in for membership | subclass	2
FHLB stock | $	$ 10,400,000	8,600,000
Federal Home Loan Bank of Pittsburgh | Subclass B-1
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	0.10%
Federal Home Loan Bank of Pittsburgh | Subclass B-1 | Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	0.05%
Federal Home Loan Bank of Pittsburgh | Subclass B-1 | Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	1.00%
Federal Home Loan Bank of Pittsburgh | Subclass B-2
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	4.00%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	4.00%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	0.75%
Investment in capital stock of FHLB, at cost, as a percent of outstanding advance commitments settling more than 30 days after trade	0.00%
Federal Home Loan Bank of Pittsburgh | Subclass B-2 | Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	2.00%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	0.00%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	0.00%
Investment in capital stock of FHLB, at cost, as a percent of outstanding advance commitments settling more than 30 days after trade	0.00%
Federal Home Loan Bank of Pittsburgh | Subclass B-2 | Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	6.00%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	6.00%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	4.00%
Investment in capital stock of FHLB, at cost, as a percent of outstanding advance commitments settling more than 30 days after trade	6.00%
Federal Home Loan Bank of Indianapolis
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Number of subclasses of capital stock required to invest in for membership | subclass	2
FHLB stock | $	$ 3,800,000	$ 13,100,000
Federal Home Loan Bank of Indianapolis | Subclass B-1
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	0.10%
Federal Home Loan Bank of Indianapolis | Subclass B-1 | Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	0.01%
Federal Home Loan Bank of Indianapolis | Subclass B-1 | Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of member asset value, as defined by FHLB	0.50%
Federal Home Loan Bank of Indianapolis | Subclass B-2
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	4.50%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	4.50%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	0.10%
Investment in capital stock of FHLB stock, at cost, as a percent of derivative contracts	4.50%
Investment in capital stock of FHLB stock, at cost, as a percent of mortgage purchase program	0.00%
Investment in capital stock of FHLB stock, at cost, as a percent of optional MPP	4.50%
Investment in capital stock of FHLB stock, at cost, as a percent of community investment program CIP advances	4.50%
Federal Home Loan Bank of Indianapolis | Subclass B-2 | Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	1.00%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	1.00%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	0.10%
Investment in capital stock of FHLB stock, at cost, as a percent of derivative contracts	1.00%
Investment in capital stock of FHLB stock, at cost, as a percent of mortgage purchase program	0.00%
Investment in capital stock of FHLB stock, at cost, as a percent of optional MPP	0.00%
Investment in capital stock of FHLB stock, at cost, as a percent of community investment program CIP advances	1.00%
Federal Home Loan Bank of Indianapolis | Subclass B-2 | Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Investment in capital stock of FHLB, at cost, as a percent of borrowings outstanding	6.00%
Investment in capital stock of FHLB, at cost, as a percent of acquired member assets	6.00%
Investment in capital stock of FHLB, at cost, as a percent of certain letters of credit	6.00%
Investment in capital stock of FHLB stock, at cost, as a percent of derivative contracts	6.00%
Investment in capital stock of FHLB stock, at cost, as a percent of mortgage purchase program	6.00%
Investment in capital stock of FHLB stock, at cost, as a percent of optional MPP	6.00%
Investment in capital stock of FHLB stock, at cost, as a percent of community investment program CIP advances	6.00%

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Premises and Equipment
Total, at cost	$ 336,633	$ 334,983
Less accumulated depreciation and amortization	(180,109)	(173,445)
Premises and equipment, net	156,524	161,538
Depreciation and amortization expense	12,100	11,900	$ 11,700
Land and land improvements
Premises and Equipment
Total, at cost	25,449	26,878
Office buildings and improvements
Premises and Equipment
Total, at cost	152,654	154,439
Furniture, fixtures and equipment
Premises and Equipment
Total, at cost	138,242	134,821
Leasehold improvements
Premises and Equipment
Total, at cost	$ 20,288	$ 18,845

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortizable intangible assets:
Intangible asset - net	$ 12,836	$ 19,936
Amortization expense	5,553	6,856	$ 6,543
Estimated amortization expense
For the year ending December 31, 2022	4,277
For the year ending December 31, 2023	3,270
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
Core Deposits
Amortizable intangible assets:
Intangible asset - gross	74,899	71,182
Acquisitions (disposals)	0	3,717
Less: accumulated amortization	(62,158)	(56,896)
Intangible asset - net	12,741	18,003
Customer and Contract
Amortizable intangible assets:
Intangible asset - gross	12,775	12,775
Acquisitions (disposals)	(1,547)	0
Less: accumulated amortization	(11,133)	(10,842)
Intangible asset - net	$ 95	$ 1,933

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 382,279	$ 346,103
Goodwill acquired		36,176
Purchase accounting adjustment	77
Goodwill disposed of due to sale of insurance business	(1,359)
Balance at the end of the period	$ 380,997	$ 382,279

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deposits [Abstract]
Noninterest-bearing demand deposits	$ 3,099,526	$ 2,716,224
Interest-bearing demand deposits	2,940,442	2,755,950
Money market deposit accounts	2,629,882	2,437,539
Savings deposits	2,303,760	2,047,424
Time deposits	1,327,555	1,642,096
Total deposits	12,301,165	11,599,233
Aggregate amount of certificates of deposit with a minimum denomination of $100,000	439,500	578,500
Deposits in accounts exceeding $250,000	4,194,000	3,744,000
Contractual maturity of the certificate accounts
Due within 12 months	890,101	990,769
Due between 12 and 24 months	288,284	380,466
Due between 24 and 36 months	80,251	164,583
Due between 36 and 48 months	33,843	64,700
Due between 48 and 60 months	29,692	36,098
After 60 months	5,384	5,480
Total time deposits	1,327,555	1,642,096
Interest expense incurred on deposits
Interest-bearing demand deposits	1,660	3,358	$ 6,012
Money market deposit accounts	2,597	7,021	13,010
Savings deposits	2,413	2,614	3,115
Time deposits	12,452	22,903	27,079
Total interest expense on deposits	$ 19,122	$ 35,896	$ 49,216

Borrowed Funds - Schedule of Bo

Borrowed Funds - Schedule of Borrowed Funds (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Borrowed funds	$ 139,093	$ 159,715
Term notes payable to the FHLB:
Debt Instrument [Line Items]
Borrowed funds	0	22,054
Collateralized borrowings, due within one year
Debt Instrument [Line Items]
Borrowed funds	$ 139,093	$ 137,661
Effective interest rate (as a percent)	0.19%	0.19%
Subordinated Debt
Debt Instrument [Line Items]
Borrowed funds	$ 123,600	$ 123,300
Federal Home Loan Bank of Indianapolis | Term notes payable to the FHLB:
Debt Instrument [Line Items]
Borrowed funds	$ 0	$ 22,054
Effective interest rate (as a percent)	0.00%	1.92%

Borrowed Funds - Narrative (Det

Borrowed Funds - Narrative (Details)	Sep. 09, 2020USD ($)	Dec. 31, 2021USD ($)business_trust	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Borrowed funds		$ 139,093,000	$ 159,715,000
Number of statutory business trusts | business_trust		7
Subordinated Debt
Debt Instrument [Line Items]
Debt issued	$ 125,000,000
Stated rate	4.00%
Spread on variable rate basis (as a percent)	3.89%
Debt issuance costs	$ 1,800,000
Debt issuance amortization period	5 years
Borrowed funds		$ 123,600,000	123,300,000
Term notes payable to the FHLB:
Debt Instrument [Line Items]
Borrowed funds		0	22,054,000
Term notes payable to the FHLB: | Federal Home Loan Bank of Indianapolis
Debt Instrument [Line Items]
FHLB borrowings matured		22,000,000
Borrowed funds		0	22,054,000
FHLB of Pittsburgh | Federal Home Loan Bank of Pittsburgh
Debt Instrument [Line Items]
Long-term line of credit		0	0
FHLB of Pittsburgh
Debt Instrument [Line Items]
Maximum commitment		250,000,000
Collateralized borrowings, due within one year
Debt Instrument [Line Items]
Due within one year, amount		139,100,000	137,700,000
Average amount of agreements outstanding		132,100,000	122,800,000	$ 91,100,000
Maximum amount of outstanding security repurchase agreement		$ 139,600,000	$ 150,600,000	$ 101,100,000
Trust Preferred Securities Subject to Mandatory Redemption
Debt Instrument [Line Items]
Maximum period for which interest payment on the subordinated debentures can be deferred		5 years
Interest deferral		$ 0

Borrowed Funds - Schedule of Ca

Borrowed Funds - Schedule of Capital Debt Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Junior subordinated debentures	$ 129,054	$ 128,794
Trust Preferred Securities Subject to Mandatory Redemption
Debt Instrument [Line Items]
Capital debt securities	128,875
Junior subordinated debentures	$ 129,054	128,794
Trust Preferred Securities Subject to Mandatory Redemption | Northwest Bancorp Capital Trust III
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	138.00%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547	51,547
Trust Preferred Securities Subject to Mandatory Redemption | Northwest Bancorp Statutory Trust IV
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	138.00%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547	51,547
Trust Preferred Securities Subject to Mandatory Redemption | LNB Trust II
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	148.00%
Capital debt securities	$ 7,875
Junior subordinated debentures	$ 8,119	8,119
Trust Preferred Securities Subject to Mandatory Redemption | Union National Capital Trust I
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	285.00%
Capital debt securities	$ 8,000
Junior subordinated debentures	$ 7,950	7,925
Trust Preferred Securities Subject to Mandatory Redemption | Union National Capital Trust II
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	200.00%
Capital debt securities	$ 3,000
Junior subordinated debentures	$ 2,741	2,714
Trust Preferred Securities Subject to Mandatory Redemption | M F B C Statutory Trust I
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	170.00%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,580	3,476
Trust Preferred Securities Subject to Mandatory Redemption | Universal Preferred Trust
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	169.00%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,570	$ 3,466

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allocation of total income tax
Income tax expense	$ 46,801	$ 17,672	$ 30,679
Shareholders’ equity for unrealized gain/(loss) on securities available-for-sale	(10,425)	5,061	3,992
Shareholders’ equity for pension adjustment	9,659	(3,774)	(2,859)
Unallocated income tax	46,035	18,959	31,812
Income tax expense applicable to income before taxes
Current	34,487	25,756	27,903
Deferred	12,314	(8,084)	2,776
Total provision for income taxes	$ 46,801	$ 17,672	$ 30,679
Reconciliation of the expected federal statutory income tax rate to the effective rate
Expected tax rate	21.00%	21.00%	21.00%
Tax-exempt interest income	(0.90%)	(1.70%)	(0.80%)
State income tax, net of federal benefit	4.50%	2.20%	3.70%
Bank-owned life insurance	(0.60%)	(1.10%)	(0.60%)
Stock-based compensation	(0.10%)	0.20%	(0.60%)
Dividends on stock plans	(0.40%)	(0.90%)	(0.60%)
Low income housing and historic tax credits	(0.20%)	(0.90%)	(0.50%)
Other	0.00%	0.30%	0.10%
Effective tax rate	23.30%	19.10%	21.70%
Deferred tax assets:
Deferred compensation expense	$ 4,230	$ 4,272
Bad debts	23,273	30,418
Other reserves	1,333	2,358
Accrued post-retirement benefit cost	900	778
Stock benefit plans	623	820
Pension and post-retirement benefits	9,747	19,405
Unrealized loss on the fair value of securities available-for-sale	4,093	0
Deferred income	341	540
Lease liability	12,958	11,713
Purchase accounting	432	412
Net operating loss	2,140	2,800
Other	922	1,338
Total deferred tax assets	60,992	74,854
Deferred tax liabilities:
Pension expense	6,993	6,198
Intangible assets	16,543	15,419
Mortgage servicing rights	2,278	1,831
Fixed assets	5,287	4,740
Net deferred loan costs	2,338	1,548
Right of use asset	12,322	10,844
Unrealized gain on fair value of securities available-for-sale	0	6,332
Interest rate derivatives	341	1,268
Other	2,503	2,670
Total deferred tax liabilities	48,605	50,850
Net deferred tax asset	$ 12,387	$ 24,004

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details)	Dec. 31, 2021USD ($)
Domestic Tax Authority
Operating loss carryforwards
Operating loss carryforwards	$ 4,300,000
Valuation allowance for deferred tax assets	0
State and Local Jurisdiction
Operating loss carryforwards
Operating loss carryforwards	38,100,000
Amount carryovers not expected to be realized	$ 7,600,000

Income Taxes - Summary of Unrec

Income Taxes - Summary of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unrecognized tax benefits:
Balance, beginning of year	$ 241	$ 331	$ 0
Increases related to prior year tax positions	37	336	0
Decreases related to prior year tax positions	(173)	(5)	0
Increases related to current year tax positions	46	0	0
Settlements	0	0	0
Lapse of statute	0	0	0
Balance, end of year	$ 241	$ 331	$ 0	$ 0

Shareholders' Equity (Details)

Shareholders' Equity (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Note [Abstract]
Bad debt deductions for which no deferred income taxes have been provided	$ 39.1	$ 39.1

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - Employee And Directors Stock Options - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Antidilutive securities excluded from the calculation of earnings per share
Antidilutive securities excluded from computation of earnings	2,146,897	4,677,841
Average share price during the reporting period (in dollars per share)	$ 13.80	$ 11.54	$ 17.07

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 154,323	$ 74,854	$ 110,432
Less: Dividends and undistributed earnings allocated to participating securities	1,010	0	0
Net income available to common shareholders	153,313	74,854	110,432
Net income available to common shareholders	$ 153,313	$ 74,854	$ 110,432
Weighted average common shares outstanding (in shares)	126,181,586	120,244,474	104,878,774
Dilutive potential shares due to effect of stock options (in shares)	828,251	0	960,375
Total weighted average common shares and dilutive potential shares (in shares)	127,009,837	120,244,474	105,839,149
Basic earnings per share (in dollars per share)	$ 1.22	$ 0.62	$ 1.05
Diluted earnings per share (in dollars per share)	$ 1.21	$ 0.62	$ 1.04

Employee Benefit Plans - Pensio

Employee Benefit Plans - Pension Plans, Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Aug. 01, 2020hour
Employee benefit plans
Employer matching contribution	100.00%
Employee matching contribution	4.00%
Soft freeze, hours threshold | hour				1,000
Total expense for all retirement plans	$ 10.1	$ 8.2	$ 6.7
Minimum
Employee benefit plans
Estimated net loss that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	1.5
Maximum
Employee benefit plans
Estimated net loss that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	4
Pension Plans
Employee benefit plans
Accumulated benefit obligation for funded defined benefit pension plan	243.6	254.2	217.3
Accumulated benefit obligation for unfunded defined benefit pension plan	$ 3.3	$ 4.4	$ 5.2
Target allocation of any one stock, maximum (as a percent)	10.00%
Maximum average maturity of bond portfolio	10 years
2021	$ 8
2022	8.8
2023	8.9
2024	9.4
2025	9.8
2026 to 2030	56.7
Pension Plans | Minimum
Employee benefit plans
Contributions to defined benefit pension plan	2
Pension Plans | Maximum
Employee benefit plans
Contributions to defined benefit pension plan	$ 4
Pension Plans | Common stock | Minimum
Employee benefit plans
Target allocation, (as a percent)	30.00%	30.00%
Pension Plans | Common stock | Maximum
Employee benefit plans
Target allocation, (as a percent)	60.00%	60.00%
Pension Plans | Mutual funds | Minimum
Employee benefit plans
Target allocation, (as a percent)	20.00%	20.00%
Pension Plans | Mutual funds | Maximum
Employee benefit plans
Target allocation, (as a percent)	50.00%	50.00%

Employee Benefit Plans - Pens_2

Employee Benefit Plans - Pension Plans - Components of Net Periodic Pension Cost and Other Amounts Recognized In OCI (Details) - Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of net periodic pension cost
Service cost	$ 11,440	$ 8,391	$ 5,949
Interest cost	6,070	6,855	7,353
Expected return on plan assets	(13,859)	(12,362)	(11,037)
Amortization of prior service cost	(2,322)	(2,322)	(2,322)
Amortization of the net loss	4,156	3,695	3,423
Net periodic pension cost, defined benefit pension plans	5,485	4,257	3,366
Changes in the defined benefit pension plans’ plan assets and benefit obligations recognized in other comprehensive income
Net (gain)/loss	(36,552)	11,521	8,235
Amortization of prior service cost	2,322	2,323	2,323
Total recognized in other comprehensive income	(34,230)	13,844	10,558
Total recognized in net periodic pension cost and other comprehensive income	$ (28,745)	$ 18,101	$ 13,924

Employee Benefit Plans - Define

Employee Benefit Plans - Defined Benefit Pension Plans' Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in plan assets:
Fair value of plan assets at end of period	$ 239,262
Pension Plans
Change in benefit obligation:
Benefit obligation at beginning of year	258,589	$ 222,497
Service cost	11,440	8,391	$ 5,949
Interest cost	6,070	6,855	7,353
Actuarial (gain)/loss	(19,834)	29,084
Benefits paid	(9,331)	(8,238)
Benefit obligation at end of year	246,934	258,589	222,497
Change in plan assets:
Fair value of plan assets at beginning of year	216,872	193,541
Actual return on plan assets	26,421	26,228
Employer contributions	5,476	5,341
Benefits paid	(9,331)	(8,238)
Fair value of plan assets at end of period	239,438	216,872	$ 193,541
Funded status at end of year	$ (7,496)	$ (41,717)
Assumptions used to develop the net periodic pension cost
Discount rate	2.39%	3.14%	4.15%
Expected long-term rate of return on assets	6.50%	6.50%	7.00%
Rate of increase in compensation levels	3.00%	3.00%	3.00%
Assumptions used to determine benefit obligations
Discount rate	2.75%	2.39%	3.14%
Expected long-term rate of return on assets	6.50%	6.50%	6.50%
Rate of increase in compensation levels	3.00%	3.00%	3.00%

Employee Benefit Plans - Defi_2

Employee Benefit Plans - Defined Benefit Plans Certain Information and Weighted Average Asset Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee benefit plans
Fair value of plan assets	$ 239,262
Mutual funds
Employee benefit plans
Fair value of plan assets	154,676
Common stock
Employee benefit plans
Fair value of plan assets	61,968
Pension Plans
Employee benefit plans
Projected benefit obligation	246,934	$ 258,589	$ 222,497
Accumulated benefit obligation	246,934	258,589
Fair value of plan assets	$ 239,438	$ 216,872	$ 193,541
Weighted average asset allocation of defined benefit plans
Total (as a percent)	100.00%	100.00%
Pension Plans | Mutual funds
Weighted average asset allocation of defined benefit plans
Total (as a percent)	25.00%	22.00%
Pension Plans | Common stock
Weighted average asset allocation of defined benefit plans
Total (as a percent)	66.00%	67.00%
Pension Plans | Other
Weighted average asset allocation of defined benefit plans
Total (as a percent)	9.00%	11.00%
Minimum | Pension Plans | Mutual funds
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	20.00%	20.00%
Minimum | Pension Plans | Common stock
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	30.00%	30.00%
Minimum | Pension Plans | Other
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	5.00%	5.00%
Maximum | Pension Plans | Mutual funds
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	50.00%	50.00%
Maximum | Pension Plans | Common stock
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	60.00%	60.00%
Maximum | Pension Plans | Other
Weighted average asset allocation of defined benefit plans
Target allocation, (as a percent)	50.00%	50.00%

Employee Benefit Plans - Pens_3

Employee Benefit Plans - Pension Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Employee benefit plans
Fair value of plan assets	$ 239,262
Fair value of plan assets, including accrued interest and dividends	239,400	$ 216,900
Common stock
Employee benefit plans
Fair value of plan assets	61,968
Mutual funds
Employee benefit plans
Fair value of plan assets	154,676
Money market funds
Employee benefit plans
Fair value of plan assets	11,946
Other
Employee benefit plans
Fair value of plan assets	10,672
Level 1
Employee benefit plans
Fair value of plan assets	216,712
Level 1 | Common stock
Employee benefit plans
Fair value of plan assets	52,019
Level 1 | Mutual funds
Employee benefit plans
Fair value of plan assets	140,746
Level 1 | Money market funds
Employee benefit plans
Fair value of plan assets	15,068
Level 1 | Other
Employee benefit plans
Fair value of plan assets	$ 8,879

Employee Benefit Plans - Post-r

Employee Benefit Plans - Post-retirement Healthcare Plan, Narrative (Details) - Postretirement Healthcare Plan $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Requisite service age, minimum	55 years
Estimated net loss that will be amortized from accumulated other comprehensive income into net periodic cost over the next year	$ (6)
Effect of one percentage point increase on healthcare cost (as a percent)	6.00%
Effect of 1-percent increase in assumed health care cost trend rates on interest cost in current period	$ 2
Effect of 1-percent increase in assumed health care cost trend rates on postretirement benefit obligation	$ 85

Employee Benefit Plans - Post_2

Employee Benefit Plans - Post-retirement Healthcare Plan - Components of Net Periodic Benefit Cost and Other Amounts Recognized in OCI (Details) - Postretirement Healthcare Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 42	$ 26	$ 52
Amortization of prior service cost	14	18	68
Net periodic pension cost, defined benefit pension plans	56	44	120
Net (gain)/loss	(66)	(51)	(475)
Total recognized in other comprehensive income	(66)	(51)	(475)
Total recognized in net periodic pension cost and other comprehensive income	$ (10)	$ (7)	$ (355)

Employee Benefit Plans - Post_3

Employee Benefit Plans - Post-retirement Healthcare Plan - Funded Status (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in benefit obligation:
Defined benefit plan acquired from MutualBank	$ 0	$ 1,037,000
Postretirement Healthcare Plan
Change in benefit obligation:
Benefit obligation at beginning of year	1,807,000	889,000
Interest cost	42,000	26,000	$ 52,000
Actuarial (gain)/loss	(53,000)	(34,000)
Benefits paid	(236,000)	(111,000)
Benefit obligation at end of year	1,560,000	1,807,000	$ 889,000
Change in plan assets:
Employer contributions	236,000	111,000
Benefits paid	(236,000)	(111,000)
Funded status at end of year	$ (1,560,000)	$ (1,807,000)
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount rate	2.39%	3.14%	4.15%
Monthly cost of healthcare insurance per beneficiary	$ 343	$ 370	$ 391
Annual rate of increase in healthcare costs	5.00%	4.00%	4.00%
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 1,560,000	$ 1,807,000	$ 889,000
Accumulated benefit obligation	$ 1,560,000	$ 1,807,000

Employee Benefit Plans - Common

Employee Benefit Plans - Common Stock Awards, Narrative (Details) - Restricted common shares - USD ($) $ / shares in Units, $ in Millions	May 20, 2020	May 22, 2019	May 14, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2020	Apr. 18, 2018
Stock Related Compensation
Number of shares awarded				13,452
Weighted average grant date fair value of shares issued (in dollars per share)	$ 13.76	$ 9.71	$ 17.27
Market value of shares issued		$ 2.7	$ 4.9
2018 Equity Incentive Plan
Stock Related Compensation
Number of shares authorized							1,500,000
Number of shares forfeited				46,650		163,267
Vesting period				5 years
Employees
Stock Related Compensation
Number of shares awarded	293,755	261,091	256,800	307,207	261,091
Director
Stock Related Compensation
Number of shares awarded	27,000	21,600	24,300	27,000	21,600
Weighted average grant date fair value of shares issued (in dollars per share)	$ 13.68

Employee Benefit Plans - Stock

Employee Benefit Plans - Stock Option Plans, Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	May 20, 2020	May 22, 2019	May 14, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Outstanding and exercisable options
Aggregate intrinsic value				$ 448,066
Vested options				$ 26,973
Stock options
Outstanding and exercisable options
Granted (in shares)				693,972	614,076	612,210
Granted (in dollars per share)	$ 13.68	$ 9.71	$ 17.27	$ 13.68	$ 9.71	$ 17.27
Vesting period				5 years
Weighted average fair value of options at grant date (in dollars per share)				$ 0.64	$ 0.13	$ 1.14
Intrinsic value of options exercised				$ 2,300	$ 444	$ 5,200
Exercise period				10 years
2018 Equity Incentive Plan | Stock options
Outstanding and exercisable options
Number of shares authorized				3,500,000
Employees | Stock options
Outstanding and exercisable options
Granted (in shares)	621,972	556,476	547,410	621,972	556,476
Director | Stock options
Outstanding and exercisable options
Granted (in shares)	72,000	57,600	64,800	72,000	57,600

Employee Benefit Plans - Share-

Employee Benefit Plans - Share-Based Awards (Details) - Stock options - USD ($) $ / shares in Units, $ in Thousands	May 20, 2020	May 22, 2019	May 14, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number
Balance at beginning of year (in shares)				5,243,172	5,101,351	5,612,812
Granted (in shares)				693,972	614,076	612,210
Exercised (in shares)				(1,219,581)	(131,309)	(917,845)
Forfeited/ expired (in shares)				(337,253)	(340,946)	(205,826)
Balance at end of year (in shares)				4,380,310	5,243,172	5,101,351
Exercisable at end of year (in shares)				2,618,733	3,350,356	2,803,918
Weighted average exercise price
Balance at beginning of year (in dollars per share)				$ 13.72	$ 14.28	$ 13.49
Granted (in dollars per share)	$ 13.68	$ 9.71	$ 17.27	13.68	9.71	17.27
Exercised (in dollars per share)				12.28	11.81	11.77
Forfeited (in dollars per share)				14.59	14.39	14.28
Balance at end of year (in dollars per share)				14.05	13.72	14.28
Exercisable at end of year (in dollars per share)				14.15	13.53	13.36
Weighted average fair value of options at grant date (in dollars per share)				$ 0.64	$ 0.13	$ 1.14
Intrinsic value of options exercised				$ 2,300	$ 444	$ 5,200

Employee Benefit Plans - Number

Employee Benefit Plans - Number of Options Outstanding and Exercisable and Weighted Average Remaining Life of All Option Grants (Details)	12 Months Ended
	Dec. 31, 2021$ / sharesshares
Exercise price $9.71
Outstanding and exercisable options
Number of options (in shares)	515,674
Weighted average remaining contract life (years)	8 years 6 months
Number of options (in shares)	175,719
Weighted average remaining term - vested (years)	8 years 6 months
Exercise price $11.70
Outstanding and exercisable options
Number of options (in shares)	189,338
Weighted average remaining contract life (years)	6 months
Number of options (in shares)	189,338
Weighted average remaining term - vested (years)	6 months
Exercise price $12.37
Outstanding and exercisable options
Number of options (in shares)	332,520
Weighted average remaining contract life (years)	3 years 6 months
Number of options (in shares)	258,792
Weighted average remaining term - vested (years)	3 years 6 months
Exercise price $12.44
Outstanding and exercisable options
Number of options (in shares)	252,951
Weighted average remaining contract life (years)	1 year 6 months
Number of options (in shares)	234,308
Weighted average remaining term - vested (years)	1 year 6 months
Exercise price $13.15
Outstanding and exercisable options
Number of options (in shares)	278,012
Weighted average remaining contract life (years)	2 years 6 months
Number of options (in shares)	236,034
Weighted average remaining term - vested (years)	2 years 6 months
Exercise price $13.68
Outstanding and exercisable options
Number of options (in shares)	664,918
Weighted average remaining contract life (years)	9 years 6 months
Number of options (in shares)	150,032
Weighted average remaining term - vested (years)	9 years 6 months
Exercise price $14.15
Outstanding and exercisable options
Number of options (in shares)	441,989
Weighted average remaining contract life (years)	4 years 6 months
Number of options (in shares)	313,173
Weighted average remaining term - vested (years)	4 years 6 months
Exercise price $15.57
Outstanding and exercisable options
Number of options (in shares)	540,305
Weighted average remaining contract life (years)	5 years 6 months
Number of options (in shares)	344,900
Weighted average remaining term - vested (years)	5 years 6 months
Exercise price $16.59
Outstanding and exercisable options
Number of options (in shares)	681,771
Weighted average remaining contract life (years)	6 years 6 months
Number of options (in shares)	461,605
Weighted average remaining term - vested (years)	6 years 6 months
Exercise price $17.27
Outstanding and exercisable options
Number of options (in shares)	482,832
Weighted average remaining contract life (years)	7 years 6 months
Number of options (in shares)	254,832
Weighted average remaining term - vested (years)	7 years 6 months
Total Average $14.05
Outstanding and exercisable options
Number of options (in shares)	4,380,310
Weighted average remaining contract life (years)	5 years 9 months 29 days
Number of options (in shares)	2,618,733
Weighted average remaining term - vested (years)	4 years 4 months 2 days
Stock options | Exercise price $9.71
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	$ 9.71
Stock options | Exercise price $11.70
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	11.70
Stock options | Exercise price $12.37
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	12.37
Stock options | Exercise price $12.44
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	12.44
Stock options | Exercise price $13.15
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	13.15
Stock options | Exercise price $13.68
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	13.68
Stock options | Exercise price $14.15
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	14.15
Stock options | Exercise price $15.57
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	15.57
Stock options | Exercise price $16.59
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	16.59
Stock options | Exercise price $17.27
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	17.27
Stock options | Total Average $14.05
Outstanding and exercisable options
Exercise price (in dollars per share) | $ / shares	$ 14.05

Disclosures About Fair Value _3

Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets:
Securities held-to-maturity	$ 751,513	$ 179,666
Residential mortgage loans held-for-sale	25,100	58,800
Accrued interest receivable	25,599	35,554
Derivative asset	33,309	61,433
Financial liabilities:
Subordinated debt	123,575	123,329
Junior subordinated debentures	129,054	128,794
Interest rate swaps not designated as hedging instruments	31,758	54,665
Level 1
Financial assets:
Cash and cash equivalents	1,279,259	736,277
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	25,599	35,554
FHLB stock	0	0
Total assets	1,304,858	771,831
Financial liabilities:
Savings and checking accounts	10,973,610	9,957,137
Time deposits	0	0
Borrowed funds	139,093	159,745
Subordinated debt	0	0
Junior subordinated debentures	0	0
Accrued interest payable	1,804	2,054
Total financial liabilities	11,114,507	10,118,936
Level 1 | Interest rate lock commitments
Financial assets:
Derivative asset	0	0
Level 1 | Forward commitments
Financial assets:
Derivative asset	0	0
Level 1 | Interest rate swaps not designated as hedging instruments
Financial assets:
Derivative asset	0	0
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0	0
Level 1 | Risk participation agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0	0
Level 1 | Foreign exchange swap agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	1,548,592	1,398,941
Securities held-to-maturity	751,513	179,666
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	0	0
FHLB stock	0	0
Total assets	2,331,730	1,633,575
Financial liabilities:
Savings and checking accounts	0	0
Time deposits	0	0
Borrowed funds	0	0
Subordinated debt	129,138	123,329
Junior subordinated debentures	0	0
Accrued interest payable	0	0
Total financial liabilities	160,896	177,994
Level 2 | Interest rate lock commitments
Financial assets:
Derivative asset	0	0
Level 2 | Forward commitments
Financial assets:
Derivative asset	371	1,105
Level 2 | Interest rate swaps not designated as hedging instruments
Financial assets:
Derivative asset	31,254	53,863
Financial liabilities:
Interest rate swaps not designated as hedging instruments	31,357	54,579
Level 2 | Risk participation agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	60	86
Level 2 | Foreign exchange swap agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	341
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	9,648,825	10,334,521
Residential mortgage loans held-for-sale	25,056	58,786
Accrued interest receivable	0	0
FHLB stock	0	0
Total assets	9,675,565	10,399,772
Financial liabilities:
Savings and checking accounts	0	0
Time deposits	1,339,308	1,669,546
Borrowed funds	0	0
Subordinated debt	0	0
Junior subordinated debentures	120,083	121,106
Accrued interest payable	0	0
Total financial liabilities	1,459,391	1,790,652
Level 3 | Interest rate lock commitments
Financial assets:
Derivative asset	1,684	6,465
Level 3 | Forward commitments
Financial assets:
Derivative asset	0	0
Level 3 | Interest rate swaps not designated as hedging instruments
Financial assets:
Derivative asset	0	0
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0	0
Level 3 | Risk participation agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0	0
Level 3 | Foreign exchange swap agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	0
Carrying amount
Financial assets:
Cash and cash equivalents	1,279,259	736,277
Securities available-for-sale	1,548,592	1,398,941
Securities held-to-maturity	768,154	178,887
Loans receivable, net	9,889,095	10,387,636
Residential mortgage loans held-for-sale	25,056	58,786
Accrued interest receivable	25,599	35,554
FHLB stock	14,184	21,748
Total assets	13,583,248	12,879,262
Financial liabilities:
Savings and checking accounts	10,973,610	9,957,137
Time deposits	1,327,555	1,642,096
Borrowed funds	139,093	159,715
Subordinated debt	123,575	123,329
Junior subordinated debentures	129,054	128,794
Accrued interest payable	1,804	2,054
Total financial liabilities	12,726,449	12,067,790
Carrying amount | Interest rate lock commitments
Financial assets:
Derivative asset	1,684	6,465
Carrying amount | Forward commitments
Financial assets:
Derivative asset	371	1,105
Carrying amount | Interest rate swaps not designated as hedging instruments
Financial assets:
Derivative asset	31,254	53,863
Financial liabilities:
Interest rate swaps not designated as hedging instruments	31,357	54,579
Carrying amount | Risk participation agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	60	86
Carrying amount | Foreign exchange swap agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	341
Estimated fair value
Financial assets:
Cash and cash equivalents	1,279,259	736,277
Securities available-for-sale	1,548,592	1,398,941
Securities held-to-maturity	751,513	179,666
Loans receivable, net	9,648,825	10,334,521
Residential mortgage loans held-for-sale	25,056	58,786
Accrued interest receivable	25,599	35,554
FHLB stock	14,184	21,748
Total assets	13,326,337	12,826,926
Financial liabilities:
Savings and checking accounts	10,973,610	9,957,137
Time deposits	1,339,308	1,669,546
Borrowed funds	139,093	159,745
Subordinated debt	129,138	123,329
Junior subordinated debentures	120,083	121,106
Accrued interest payable	1,804	2,054
Total financial liabilities	12,734,794	12,087,582
Estimated fair value | Interest rate lock commitments
Financial assets:
Derivative asset	1,684	6,465
Estimated fair value | Forward commitments
Financial assets:
Derivative asset	371	1,105
Estimated fair value | Interest rate swaps not designated as hedging instruments
Financial assets:
Derivative asset	31,254	53,863
Financial liabilities:
Interest rate swaps not designated as hedging instruments	31,357	54,579
Estimated fair value | Risk participation agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	60	$ 86
Estimated fair value | Foreign exchange swap agreements
Financial liabilities:
Interest rate swaps not designated as hedging instruments	$ 341

Disclosures About Fair Value _4

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	$ 33,309	$ 61,433
Liability derivatives, fair value	31,758	54,665
Level 1
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Total assets	1,304,858	771,831
Level 1 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Level 1 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Level 1 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0
Level 1 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Liability derivatives, fair value	0	0
Level 1 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0	0
Level 2
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	1,548,592	1,398,941
Total assets	2,331,730	1,633,575
Level 2 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Level 2 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	371	1,105
Level 2 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	341
Level 2 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	31,254	53,863
Liability derivatives, fair value	31,357	54,579
Level 2 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	60	86
Level 3
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Total assets	9,675,565	10,399,772
Level 3 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	1,684	6,465
Level 3 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Level 3 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0
Level 3 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Liability derivatives, fair value	0	0
Level 3 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0	0
Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	250,677	252,237
Mortgage-backed securities	1,297,915	1,146,704
Total assets	1,581,901	1,460,374
Total liabilities	31,758	54,665
Measured on recurring basis | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	75,891	40,917
Measured on recurring basis | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	46,085	94,507
Measured on recurring basis | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	128,701	116,813
Measured on recurring basis | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	16,510	23,026
Collateralized mortgage obligations	492,328	343,409
Measured on recurring basis | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	160,063	203,571
Collateralized mortgage obligations	269,060	262,109
Measured on recurring basis | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	100,055	134,572
Collateralized mortgage obligations	259,468	179,552
Measured on recurring basis | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	431	465
Measured on recurring basis | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	1,684	6,465
Measured on recurring basis | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	371	1,105
Measured on recurring basis | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	341
Measured on recurring basis | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	31,254	53,863
Liability derivatives, fair value	31,357	54,579
Measured on recurring basis | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	60	86
Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Mortgage-backed securities	0	0
Total assets	0	0
Total liabilities	0	0
Measured on recurring basis | Level 1 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 1 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 1 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 1 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 1 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Measured on recurring basis | Level 1 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Measured on recurring basis | Level 1 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Measured on recurring basis | Level 1 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0
Measured on recurring basis | Level 1 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Liability derivatives, fair value	0	0
Measured on recurring basis | Level 1 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0	0
Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	250,677	252,237
Mortgage-backed securities	1,297,915	1,146,704
Total assets	1,580,217	1,453,909
Total liabilities	31,758	54,665
Measured on recurring basis | Level 2 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	75,891	40,917
Measured on recurring basis | Level 2 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	46,085	94,507
Measured on recurring basis | Level 2 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	128,701	116,813
Measured on recurring basis | Level 2 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	16,510	23,026
Collateralized mortgage obligations	492,328	343,409
Measured on recurring basis | Level 2 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	160,063	203,571
Collateralized mortgage obligations	269,060	262,109
Measured on recurring basis | Level 2 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	100,055	134,572
Collateralized mortgage obligations	259,468	179,552
Measured on recurring basis | Level 2 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	431	465
Measured on recurring basis | Level 2 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Measured on recurring basis | Level 2 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	371	1,105
Measured on recurring basis | Level 2 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	341
Measured on recurring basis | Level 2 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	31,254	53,863
Liability derivatives, fair value	31,357	54,579
Measured on recurring basis | Level 2 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	60	86
Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Mortgage-backed securities	0	0
Total assets	1,684	6,465
Total liabilities	0	0
Measured on recurring basis | Level 3 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Measured on recurring basis | Level 3 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 3 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 3 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Collateralized mortgage obligations	0	0
Measured on recurring basis | Level 3 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities	0	0
Measured on recurring basis | Level 3 | Interest rate lock commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	1,684	6,465
Measured on recurring basis | Level 3 | Forward commitments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Measured on recurring basis | Level 3 | Foreign exchange swap agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	0
Measured on recurring basis | Level 3 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative asset	0	0
Liability derivatives, fair value	0	0
Measured on recurring basis | Level 3 | Risk participation agreements
Assets and liabilities measured at fair value on a recurring basis
Liability derivatives, fair value	$ 0	$ 0

Disclosures About Fair Value _5

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 - Debt securities - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period	$ 6,465	$ 559
Total gains or losses:
Included in net income	0	0
Net activity	(4,781)	5,906
Transfers from Level 3	0	0
Transfers into of Level 3	0	0
Balance at the end of the period	$ 1,684	$ 6,465

Disclosures About Fair Value _6

Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	$ 0	$ 0
Total assets	1,304,858	771,831
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Total assets	2,331,730	1,633,575
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	9,648,825	10,334,521
Total assets	9,675,565	10,399,772
Fair Value, Measurements, Nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	380
Real estate owned, net	873	2,232
Total assets	48,221	97,535
Fair Value, Measurements, Nonrecurring | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	46,968	95,303
Fair Value, Measurements, Nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0
Real estate owned, net	0	0
Total assets	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0
Real estate owned, net	0	0
Total assets	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	380
Real estate owned, net	873	2,232
Total assets	48,221	97,535
Fair Value, Measurements, Nonrecurring | Level 3 | Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	$ 46,968	$ 95,303

Disclosures About Fair Value _7

Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details)	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Quantitative information for Level 3 Fair Value Measurements Assets
Loans held for sale	$ 25,100,000	$ 58,800,000
Level 3
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed	9,648,825,000	10,334,521,000
Loans held for sale	25,056,000	58,786,000
Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights	380,000
Real estate owned, net	873,000	2,232,000
Fair Value, Measurements, Nonrecurring | Level 3
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights	380,000
Real estate owned, net	873,000	2,232,000
Fair Value, Measurements, Nonrecurring | Loans individually assessed
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed	46,968,000	95,303,000
Fair Value, Measurements, Nonrecurring | Loans individually assessed | Level 3
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed	46,968,000	$ 95,303,000
Real estate owned, net | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Real estate owned, net	$ 873,000
Estimated cost to sell | Loans individually assessed | Appraisal value | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed, measurement input	0.10
Estimated cost to sell | Real estate owned, net | Appraisal value | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Real estate owned, net, measurement input	0.10
Discount rate | Loans individually assessed | Discounted cash flow | Minimum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed, measurement input	0.0860
Discount rate | Loans individually assessed | Discounted cash flow | Maximum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed, measurement input	0.1295
Discount rate | Loans individually assessed | Discounted cash flow | Weighted Average | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Loans individually assessed, measurement input	0.0961
Annual service cost | Discounted cash flow | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	84
Prepayment rate | Discounted cash flow | Minimum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.071
Prepayment rate | Discounted cash flow | Maximum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.236
Prepayment rate | Discounted cash flow | Weighted Average | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.110
Expected life (months) | Discounted cash flow | Minimum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, term	42 months 6 days
Expected life (months) | Discounted cash flow | Maximum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, term	103 months 3 days
Expected life (months) | Discounted cash flow | Weighted Average | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, term	72 months 24 days
Forward yield curve | Discounted cash flow | Minimum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.0009
Forward yield curve | Discounted cash flow | Maximum | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.0151
Option adjusted spread | Discounted cash flow | Fair Value, Measurements, Nonrecurring
Quantitative information for Level 3 Fair Value Measurements Assets
Mortgage servicing rights, measurement input	0.0650
Estimated pull-through rate | Appraisal value
Quantitative information for Level 3 Fair Value Measurements Assets
Loans held for sale, measurement input	1

Regulatory Capital Requiremen_3

Regulatory Capital Requirements (Details) $ in Thousands	Jan. 01, 2020	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Tier 1 capital (leverage to average assets)
Minimum capital requirements (as a percent)		2.50%	2.50%
Cumulative Effect, Period of Adoption, Adjustment
Tier 1 capital (leverage to average assets)
Credit loss phase in of impact of adoption percent	25.00%
Cumulative Effect, Period of Adoption, Adjustment | Phase In Period Period One
Tier 1 capital (leverage to average assets)
Credit loss phase in of impact of adoption percent	25.00%
Cumulative Effect, Period of Adoption, Adjustment | Phase In Period Period Two
Tier 1 capital (leverage to average assets)
Credit loss phase in of impact of adoption percent	25.00%
Northwest Bank
Total capital (to risk weighted assets)
Actual amount		$ 1,551,084	$ 1,478,310
Actual ratio (as a percent)		0.15738	0.14887
Capital required for capital adequacy		$ 1,034,819	$ 1,042,655
Minimum capital requirements ratio (as a percent)		0.10500	0.10500
Well capitalized requirements amount		$ 985,542	$ 993,004
Well capitalized requirements ratio (as a percent)		0.10000	0.10000
Tier 1 capital (to risk weighted assets)
Actual amount		$ 1,467,362	$ 1,354,028
Actual ratio (as a percent)		0.14889	0.13636
Minimum capital requirements amount		$ 837,711	$ 844,054
Minimum capital requirements ratio (as a percent)		0.08500	0.08500
Well capitalized requirements amount		$ 788,434	$ 794,403
Well capitalized requirements ratio (as a percent)		0.08000	0.08000
CET 1 capital (to risk weighted assets)
Actual amount		$ 1,467,362	$ 1,354,028
Actual ratio (as a percent)		14.889%	13.636%
Minimum capital requirements amount		$ 689,879	$ 695,103
Minimum capital requirements ratio (as a percent)		7.00%	7.00%
Well capitalized requirements amount		$ 640,602	$ 645,453
Well capitalized requirements ratio (as a percent)		6.50%	6.50%
Tier 1 capital (leverage to average assets)
Actual ratio (as a percent)		0.10296	0.09903
Minimum capital requirements amount		$ 570,047	$ 546,905
Minimum capital requirements ratio (as a percent)		0.04000	0.04000
Well capitalized requirements amount		$ 712,558	$ 683,631
Well capitalized requirements ratio (as a percent)		0.05000	0.05000
Northwest Bancshares, Inc.
Total capital (to risk weighted assets)
Actual amount		$ 1,682,487	$ 1,654,198
Actual ratio (as a percent)		0.17056	0.16642
Capital required for capital adequacy		$ 1,035,786	$ 1,043,693
Minimum capital requirements ratio (as a percent)		0.10500	0.10500
Well capitalized requirements amount		$ 986,463	$ 993,993
Well capitalized requirements ratio (as a percent)		0.10000	0.10000
Tier 1 capital (to risk weighted assets)
Actual amount		$ 1,475,190	$ 1,406,321
Actual ratio (as a percent)		0.14954	0.14148
Minimum capital requirements amount		$ 838,494	$ 844,894
Minimum capital requirements ratio (as a percent)		0.08500	0.08500
Well capitalized requirements amount		$ 789,170	$ 795,195
Well capitalized requirements ratio (as a percent)		0.08000	0.08000
CET 1 capital (to risk weighted assets)
Actual amount		$ 1,350,125	$ 1,281,516
Actual ratio (as a percent)		13.687%	12.893%
Minimum capital requirements amount		$ 690,524	$ 695,795
Minimum capital requirements ratio (as a percent)		7.00%	7.00%
Well capitalized requirements amount		$ 641,201	$ 646,096
Well capitalized requirements ratio (as a percent)		6.50%	6.50%
Tier 1 capital (leverage to average assets)
Actual ratio (as a percent)		0.10349	0.10145
Minimum capital requirements amount		$ 570,160	$ 554,501
Minimum capital requirements ratio (as a percent)		0.04000	0.04000
Well capitalized requirements amount		$ 712,699	$ 693,126
Well capitalized requirements ratio (as a percent)		0.05000	0.05000

Components of Accumulated Oth_3

Components of Accumulated Other Comprehensive Income - Summary of Components (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated other comprehensive income (net of tax)
Shareholders’ equity	$ 1,583,571	$ 1,538,703	$ 1,353,285	$ 1,257,638
Unrealized gain/(loss) on marketable securities available-for-sale
Accumulated other comprehensive income (net of tax)
Shareholders’ equity	(12,317)	16,843	3,147	(6,832)
Defined benefit pension plans
Accumulated other comprehensive income (net of tax)
Shareholders’ equity	(25,312)	(50,392)	(40,088)	(32,864)
Accumulated other comprehensive loss
Accumulated other comprehensive income (net of tax)
Shareholders’ equity	$ (37,629)	$ (33,549)	$ (36,941)	$ (39,696)

Components of Accumulated Oth_4

Components of Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in accumulated other comprehensive income by component
Balance at beginning of the period	$ 1,538,703	$ 1,353,285	$ 1,257,638
Other comprehensive income/(loss) before reclassification adjustments	(5,125)	1,464	1,925
Amounts reclassified from accumulated other comprehensive income	1,045	1,928	830
Other comprehensive income/(loss)	(4,080)	3,392	2,755
Balance at end of the period	1,583,571	1,538,703	1,353,285
Unrealized holding gains and losses, tax	(10,333)	5,607	3,994
Unrealized holding losses, tax	0	(209)	0
Unrealized holding losses, tax	9,144	(4,169)	(3,193)
Realized gains, tax	(92)	(6)	(2)
Realized interest rate swaps, tax	0	209	0
Realized gains, tax	515	395	334
Cumulative Effect, Period of Adoption, Adjustment
Changes in accumulated other comprehensive income by component
Balance at beginning of the period		(9,649)	(1,226)
Balance at end of the period			(9,649)
Unrealized gain/(loss) on marketable securities available-for-sale
Changes in accumulated other comprehensive income by component
Balance at beginning of the period	16,843	3,147	(6,832)
Other comprehensive income/(loss) before reclassification adjustments	(28,873)	13,711	9,984
Amounts reclassified from accumulated other comprehensive income	(287)	(15)	(5)
Other comprehensive income/(loss)	(29,160)	13,696	9,979
Balance at end of the period	(12,317)	16,843	3,147
Change in fair value of interest rate swaps
Changes in accumulated other comprehensive income by component
Balance at beginning of the period	0	0
Other comprehensive income/(loss) before reclassification adjustments		(946)
Amounts reclassified from accumulated other comprehensive income		946
Other comprehensive income/(loss)		0
Balance at end of the period		0	0
Defined benefit pension plans
Changes in accumulated other comprehensive income by component
Balance at beginning of the period	(50,392)	(40,088)	(32,864)
Other comprehensive income/(loss) before reclassification adjustments	23,748	(11,301)	(8,059)
Amounts reclassified from accumulated other comprehensive income	1,332	997	835
Other comprehensive income/(loss)	25,080	(10,304)	(7,224)
Balance at end of the period	(25,312)	(50,392)	(40,088)
Accumulated other comprehensive loss
Changes in accumulated other comprehensive income by component
Balance at beginning of the period	(33,549)	(36,941)	(39,696)
Balance at end of the period	$ (37,629)	$ (33,549)	$ (36,941)

Parent Company Only Financial_3

Parent Company Only Financial Statements - Condensed - Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 1,279,259	$ 736,277
Other assets	144,126	168,503
Total assets	14,501,508	13,806,268
Liabilities:
Debentures payable	129,054	128,794
Other liabilities	178,664	209,210
Total liabilities	12,917,937	12,267,565
Shareholders’ equity	1,583,571	1,538,703	$ 1,353,285	$ 1,257,638
Total liabilities and shareholders’ equity	14,501,508	13,806,268
Parent Company
Assets
Cash and cash equivalents	128,001	172,142
Investment in bank subsidiary	1,674,360	1,585,429
Other assets	9,199	9,352
Total assets	1,811,560	1,766,923
Liabilities:
Debentures payable	252,629	252,123
Other liabilities	1,814	1,889
Total liabilities	254,443	254,012
Shareholders’ equity	1,557,117	1,512,911
Total liabilities and shareholders’ equity	$ 1,811,560	$ 1,766,923

Parent Company Only Financial_4

Parent Company Only Financial Statements - Condensed - Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income:
Interest income	$ 418,508	$ 434,068	$ 417,380
Expense:
Other expenses	8,349	16,494	13,995
Interest expense	27,246	42,340	56,914
Income before income taxes	201,124	92,526	141,111
Income tax benefit	46,801	17,672	30,679
Net income available to common shareholders	154,323	74,854	110,432
Parent Company
Income:
Interest income	87	196	209
Other income	527	553	628
Dividends from bank subsidiary	73,000	0	110,000
Undistributed earnings from equity investment in bank subsidiary	88,944	80,996	5,102
Total income	162,558	81,745	115,939
Expense:
Compensation and employee benefits	1,358	1,234	1,124
Other expenses	1,033	2,241	791
Interest expense	7,870	4,933	4,833
Total expense	10,261	8,408	6,748
Income before income taxes	152,297	73,337	109,191
Income tax benefit	(2,026)	(1,517)	(1,241)
Net income available to common shareholders	$ 154,323	$ 74,854	$ 110,432

Parent Company Only Financial_5

Parent Company Only Financial Statements - Condensed - Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 153,313	$ 74,854	$ 110,432
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of marketable securities	176	(236)	(50)
Net cash provided by operating activities	205,458	140,435	127,462
Investing activities:
Net purchase sale of marketable securities	59,579	1,096	32,389
Net cash used in investing activities	(232,970)	(560,575)	(300,593)
Financing activities:
Cash dividends paid on common stock	(100,274)	(93,132)	(76,173)
Proceeds from stock options exercised	14,011	1,479	9,727
Net cash provided by financing activities	570,494	1,095,571	165,188
Net increase/(decrease) in cash and cash equivalents	542,982	675,431	(7,943)
Cash and cash equivalents at beginning of period	736,277	60,846	68,789
Cash and cash equivalents at end of period	1,279,259	736,277	60,846
Parent Company
Operating activities:
Net income	154,323	74,854	110,432
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed earnings of subsidiary	(88,944)	(80,996)	(5,102)
Gain on sale of marketable securities	0	0	(29)
Net change in other assets and liabilities	597	128,287	(43,453)
Net cash provided by operating activities	65,976	122,145	61,848
Investing activities:
Net purchase sale of marketable securities	0	0	0
Net cash used in investing activities	0	0	0
Financing activities:
Cash dividends paid on common stock	(100,274)	(93,132)	(76,173)
Purchase of common stock for retirement	(23,854)	(9,276)	0
Proceeds from stock options exercised	14,011	1,479	9,727
Net cash provided by financing activities	(110,117)	(100,929)	(66,446)
Net increase/(decrease) in cash and cash equivalents	(44,141)	21,216	(4,598)
Cash and cash equivalents at beginning of period	172,142	150,926	155,524
Cash and cash equivalents at end of period	$ 128,001	$ 172,142	$ 150,926

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - Designated as Hedging Instrument $ in Millions	3 Months Ended
	Sep. 30, 2021USD ($)	Mar. 31, 2021USD ($)derivative
Derivative [Line Items]
Reclassified loss earning	$ 1.3
Interest rate swaps not designated as hedging instruments
Derivative [Line Items]
Number of instruments held | derivative		4
Notional amount		$ 100
Interest rate swaps not designated as hedging instruments | Minimum
Derivative [Line Items]
Term of contract		5 years
Interest rate swaps not designated as hedging instruments | Maximum
Derivative [Line Items]
Term of contract		3 years

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Asset derivatives, notional amount	$ 726,954	$ 796,131
Derivative assets, fair value	33,309	61,433
Liability derivatives, notional amount	755,256	676,832
Liability derivatives, fair value	31,758	54,665
Derivatives not designated as hedging instruments: | Interest rate swap agreements
Derivative [Line Items]
Asset derivatives, notional amount	644,997	599,300
Derivative assets, fair value	31,254	53,863
Liability derivatives, notional amount	644,997	599,300
Liability derivatives, fair value	31,357	54,579
Derivatives not designated as hedging instruments: | Foreign exchange swap agreements
Derivative [Line Items]
Asset derivatives, notional amount	0
Derivative assets, fair value	0
Liability derivatives, notional amount	17,124
Liability derivatives, fair value	341
Derivatives not designated as hedging instruments: | Interest rate lock commitments
Derivative [Line Items]
Asset derivatives, notional amount	67,473	171,357
Derivative assets, fair value	1,684	6,465
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	14,484	25,474
Derivative assets, fair value	371	1,105
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
Derivative assets, fair value	0	0
Liability derivatives, notional amount	93,135	77,532
Liability derivatives, fair value	$ 60	$ 86

Derivative Financial Instrume_5

Derivative Financial Instruments - Gain (Loss) on Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Hedging derivatives:
Decrease in interest expense	$ 0	$ (35)	$ 0
Increase/(decrease) in other income
Non-hedging swap derivatives:
Increase/(decrease) in other income	1,033	(700)	(63)
Increase in mortgage banking income
Non-hedging swap derivatives:
Increase/(decrease) in other income	$ 5,515	$ 6,867	$ 0

Uncategorized Items - nwbi-2021

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2018-02 [Member]