Washington Trust Bancorp (WASH) 10-K 26 Feb 24 2023 FY Annual report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - USD ($)	12 Months Ended
	Dec. 31, 2023	Jan. 31, 2024	Jun. 30, 2023
Cover [Abstract]
Entity Central Index Key	0000737468
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	001-32991
Entity Registrant Name	WASHINGTON TRUST BANCORP, INC
Entity Incorporation, State or Country Code	RI
Entity Tax Identification Number	05-0404671
Entity Address, Address Line One	23 Broad Street,
Entity Address, City or Town	Westerly,
Entity Address, State or Province	RI
Entity Address, Postal Zip Code	02891
City Area Code	401
Local Phone Number	348-1200
Title of 12(b) Security	COMMON STOCK, $.0625 PAR VALUE PER SHARE
Trading Symbol	WASH
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 449,550,350
Entity Common Stock, Shares Outstanding		17,033,173
Documents Incorporated by Reference [Text Block]	Portions of the Registrant’s Proxy Statement dated March 12, 2024 for the Annual Meeting of Shareholders to be held on April 23, 2024 are incorporated by reference into Part III of this Form 10-K.
ICFR Auditor Attestation Flag	true
Auditor Firm ID	173
Auditor Name	Crowe LLP
Auditor Location	Grand Rapids, Michigan
Document Financial Statement Error Correction [Flag]	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2023		Dec. 31, 2022
Assets:
Cash and due from banks		$ 86,824		$ 115,492
Short-term investments		3,360		2,930
Mortgage loans held for sale, at fair value		20,077		8,987
Available for sale debt securities, fair value		1,000,380		993,928
Federal Home Loan Bank stock, at cost		51,893		43,463
Loans:
Total loans	[1]	5,647,706		5,110,139
Less: allowance for credit losses on loans		41,057		38,027
Net loans		5,606,649		5,072,112
Premises and equipment, net		32,291		31,550
Operating lease right-of-use assets		29,364		27,156
Investment in bank-owned life insurance		103,736		102,182
Goodwill		63,909		63,909
Identifiable intangible assets, net		3,711		4,554
Other assets		200,653		193,788
Total assets		7,202,847		6,660,051
Liabilities:
Noninterest-bearing deposits		693,746		858,953
Interest-bearing deposits		4,654,414		4,160,009
Total deposits		5,348,160		5,018,962
Federal Home Loan Bank advances		1,190,000		980,000
Junior subordinated debentures		22,681		22,681
Operating lease liabilities		32,027	[2]	29,558
Other liabilities		137,293		155,181
Total liabilities		6,730,161		6,206,382
Commitments and contingencies (Note 21)
Shareholders’ Equity:
Common stock		1,085		1,085
Paid-in capital		126,150		127,056
Retained earnings		501,917		492,043
Accumulated other comprehensive loss		(141,153)		(157,800)
Treasury stock, at cost		(15,313)		(8,715)
Total shareholders’ equity		472,686		453,669
Total liabilities and shareholders’ equity		$ 7,202,847		$ 6,660,051
[1] Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022. Includes short-term operating lease liabilities of $3.1 million.

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Available for sale debt securities, amortized cost	$ 1,152,629	$ 1,166,340
Allowance for credit losses on securities	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.0625	$ 0.0625
Common stock, shares authorized (in shares)	60,000,000	60,000,000
Common stock, shares issued (in shares)	17,363,457	17,363,457
Common stock, shares outstanding (in shares)	17,030,987	17,182,753
Treasury stock (in shares)	332,470	180,704

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest income:
Interest and fees on loans		$ 270,330	$ 169,301	$ 141,552
Interest on mortgage loans held for sale		980	1,165	1,531
Taxable interest on debt securities		29,059	21,827	14,295
Dividends on Federal Home Loan Bank stock		3,315	548	436
Other interest income		4,975	1,624	181
Interest and dividend income		308,659	194,465	157,995
Interest expense:
Deposits		120,429	26,023	12,390
Federal Home Loan Bank advances		49,589	11,713	3,800
Junior subordinated debentures		1,543	739	370
Interest expense		171,561	38,475	16,560
Net interest income	[1]	137,098	155,990	141,435
Provision for credit losses		3,200	(1,300)	(4,822)
Net interest income after provision for credit losses		133,898	157,290	146,257
Noninterest income:
Wealth management revenues	[1]	35,540	38,746	41,282
Mortgage banking revenues	[1]	6,660	8,733	28,626
Card interchange fees	[1]	4,921	4,996	4,996
Service charges on deposit accounts	[1]	2,806	3,192	2,683
Loan related derivative income	[1]	1,390	2,756	4,342
Income from bank-owned life insurance	[1]	3,488	2,591	2,925
Other income	[1]	1,335	1,588	2,540
Noninterest income	[1]	56,140	62,602	87,394
Noninterest expense:
Salaries and employee benefits		82,458	83,804	87,295
Outsourced services		14,521	13,737	13,296
Net occupancy		9,636	9,126	8,449
Equipment		4,318	3,797	3,905
Legal, audit and professional fees		3,891	3,127	2,859
FDIC deposit insurance costs		4,667	1,687	1,592
Advertising and promotion		2,562	2,587	1,843
Amortization of intangibles		843	860	890
Debt prepayment penalties		0	0	6,930
Other expenses		10,661	9,997	8,405
Noninterest expense		133,557	128,722	135,464
Income before income taxes		56,481	91,170	98,187
Income tax expense		8,305	19,489	21,317
Net income		48,176	71,681	76,870
Net income available to common shareholders		$ 48,091	$ 71,479	$ 76,648
Weighted average common shares outstanding - basic		17,033	17,246	17,310
Weighted average common shares outstanding - diluted		17,062	17,381	17,455
Per share information:
Basic earnings per common share (in dollars per share)		$ 2.82	$ 4.14	$ 4.43
Diluted earnings per common share (in dollars per share)		$ 2.82	$ 4.11	$ 4.39
[1] As reported in the Consolidated Statements of Income.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 48,176	$ 71,681	$ 76,870
Other comprehensive income (loss), net of tax:
Net change in fair value of available for sale debt securities	14,442	(124,238)	(16,676)
Net change in fair value of cash flow hedges	7,026	(18,632)	(2,566)
Net change in defined benefit plan obligations	(4,821)	5,051	6,652
Total other comprehensive income (loss), net of tax	16,647	(137,819)	(12,590)
Total comprehensive income (loss)	$ 64,823	$ (66,138)	$ 64,280

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock, Common [Member]
Common stock, shares outstanding, beginning balance at Dec. 31, 2020		17,265,000
Stockholders' equity, beginning balance at Dec. 31, 2020	$ 534,195	$ 1,085	$ 125,610	$ 418,246	$ (7,391)	$ (3,355)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	76,870			76,870
Total other comprehensive income (loss), net of tax	(12,590)				(12,590)
Cash dividends declared	(36,806)			(36,806)
Share-based compensation	3,316		3,316
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered, shares		66,000
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered	(177)	$ 0	(2,415)			2,238
Common stock, shares outstanding, ending balance at Dec. 31, 2021		17,331,000
Stockholders' equity, ending balance at Dec. 31, 2021	564,808	$ 1,085	126,511	458,310	(19,981)	(1,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	71,681			71,681
Total other comprehensive income (loss), net of tax	(137,819)				(137,819)
Cash dividends declared	(37,948)			(37,948)
Share-based compensation	3,247		3,247
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered, shares		46,000
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered	(821)	$ 0	(2,702)			1,881
Treasury shares purchased, shares		(194,000)
Treasury stock purchased	$ (9,479)					(9,479)
Common stock, shares outstanding, ending balance at Dec. 31, 2022	17,182,753	17,183,000
Stockholders' equity, ending balance at Dec. 31, 2022	$ 453,669	$ 1,085	127,056	492,043	(157,800)	(8,715)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	48,176			48,176
Total other comprehensive income (loss), net of tax	16,647				16,647
Cash dividends declared	(38,302)			(38,302)
Share-based compensation	2,064		2,064
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered, shares		48,000
Exercise of stock options, issuance of other compensation-related equity awards, net of awards surrendered	(754)	$ 0	(2,970)			2,216
Treasury shares purchased, shares		(200,000)
Treasury stock purchased	$ (8,814)					(8,814)	[1]
Common stock, shares outstanding, ending balance at Dec. 31, 2023	17,030,987	17,031,000
Stockholders' equity, ending balance at Dec. 31, 2023	$ 472,686	$ 1,085	$ 126,150	$ 501,917	$ (141,153)	$ (15,313)
[1] Treasury stock includes $73 thousand of excise tax attributable to shares repurchased in 2023.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share (in dollars per share)	$ 2.24	$ 2.18	$ 2.10

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income		$ 48,176	$ 71,681	$ 76,870
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses		3,200	(1,300)	(4,822)
Depreciation of premises and equipment		4,005	3,465	3,411
Net amortization of premiums and discounts on debt securities and loans		1,352	2,893	3,446
Amortization of intangibles		843	860	890
Share–based compensation		2,064	3,247	3,316
Tax (expense) benefit from stock option exercises and other equity awards		(34)	78	182
Deferred income tax (benefit) expense		(3,690)	1,160	2,155
Income from bank-owned life insurance	[1]	(3,488)	(2,591)	(2,925)
Net gains on loan sales, including changes in fair value		(4,514)	(6,730)	(28,195)
Proceeds from sales of loans, net		219,568	309,749	934,516
Loans originated for sale		(221,637)	(272,855)	(887,341)
(Increase) decrease in operating lease right-of-use assets		(2,208)	(464)	2,829
Increase (decrease) in operating lease liabilities		2,469	547	(2,708)
(Increase) decrease in other assets		(3,000)	(30,804)	38,935
Increase (decrease) in other liabilities		(11,503)	34,070	(39,747)
Net cash provided by (used in) operating activities		31,603	113,006	100,812
Cash flows from investing activities:
Purchases of mortgage-backed available for sale debt securities		(39,967)	(223,380)	(347,913)
Purchases of other available for sale debt securities		(20,221)	(10,747)	(251,443)
Maturities and principal payments of mortgage-backed available for sale debt securities		71,732	116,116	337,751
Maturities and principal payments of other available for sale debt securities		750	0	82,800
Net (purchases) redemptions of Federal Home Loan Bank stock		(8,430)	(30,432)	17,254
Purchases of other equity investments, net		(263)	(375)	(650)
Net increase in loans		(537,467)	(832,450)	(27,921)
Purchases of loans		(5,743)	(2,773)	(41,863)
Purchases of premises and equipment		(5,048)	(6,139)	(3,490)
Purchases of bank-owned life insurance		0	(7,000)	(7,000)
Proceeds from bank-owned life insurance		1,932	0	1,526
Proceeds from sale of equity investment in real estate limited partnership		0	0	50
Equity investment in real estate limited partnership		(8,115)	(1,861)	0
Net cash provided by (used in) investing activities		(550,840)	(999,041)	(240,899)
Cash flows from financing activities:
Net increase in deposits		329,198	38,911	601,698
Proceeds from Federal Home Loan Bank advances		3,515,000	3,156,112	1,294,176
Repayment of Federal Home Loan Bank advances		(3,305,000)	(2,321,112)	(1,743,036)
Treasury stock purchased		(8,814)	(9,479)	0
Net proceeds from stock option exercises and issuance of other equity awards, net of awards surrendered		(754)	(821)	(177)
Cash dividends paid		(38,631)	(37,647)	(36,349)
Net cash provided by (used in) financing activities		490,999	825,964	116,312
Net increase (decrease) in cash and cash equivalents		(28,238)	(60,071)	(23,775)
Cash and cash equivalents at beginning of year		118,422	178,493	202,268
Cash and cash equivalents at end of year		90,184	118,422	178,493
Noncash Activities:
Loans charged-off		577	184	663
Loans transferred to property acquired through foreclosure or repossession		683	0	0
Commitment for equity investments in real estate limited partnerships		3,020	8,360	0
Supplemental Disclosures:
Interest payments		156,648	32,096	18,313
Income tax payments		$ 9,926	$ 17,706	$ 19,641
[1] As reported in the Consolidated Statements of Income.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Operations The Bancorp is a publicly-owned registered bank holding company that has elected to be a financial holding company. The Bancorp’s principal subsidiary is the Bank, a Rhode Island chartered financial institution founded in 1800. The Bank is the oldest community bank in the nation and the largest state-chartered bank headquartered in Rhode Island. Washington Trust offers a full range of financial services, including commercial, residential and consumer lending, retail and commercial deposit products, and wealth management and trust services through its offices in Rhode Island, Massachusetts and Connecticut. Basis of Presentation The accounting and reporting policies of Washington Trust conform to GAAP and to general practices of the banking industry. The consolidated financial statements include the accounts of the Bancorp and its wholly-owned subsidiaries, except subsidiaries that are not deemed necessary to be consolidated. Through consolidation, intercompany balances and transactions have been eliminated. The Bancorp owns the common stock of two capital trusts, which have issued trust preferred securities. These capital trusts are variable interest entities in which the Bancorp is not the primary beneficiary and, therefore, are not consolidated. The capital trust’s only assets are junior subordinated debentures issued by the Bancorp, which were acquired by the capital trusts using the proceeds from the issuance of the trust preferred securities and common stock. The Bancorp’s equity interest in the capital trusts, which is classified in other assets, and the junior subordinated debentures are included in the Consolidated Balance Sheets. Interest expense on the junior subordinated debentures is included in the Consolidated Statements of Income. Reclassification Certain previously reported amounts have been reclassified to conform to the current year’s presentation. Use of Estimates In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ from those estimates. Management considers the ACL on loans to be a material estimate that is particularly susceptible to change. Cash and Cash Equivalents Cash and cash equivalents, as referenced in the accompanying Consolidated Statements of Cash Flows, consists of cash and due from banks and short-term investments. Cash and due from Banks Cash and due from banks includes cash on hand, cash items in process of collection, cash on deposit at the FRBB and other correspondent banks, as well as cash pledged to derivative counterparties. Cash on deposit includes interest-bearing deposits held at correspondent banks of $74.5 million and $65.8 million, respectively, at December 31, 2023 and 2022. Cash collateral pledged to derivative counterparties represents restricted cash balances. See Note 9 for additional disclosure regarding cash collateral pledged to derivative counterparties. Short-term Investments Short-term investments consist of highly liquid investments with a maturity date of three months or less when purchased and are considered to be cash equivalents. The Corporation’s short-term investments may be composed of overnight federal funds sold, securities purchased under resale agreements, money market mutual funds and U.S. Treasury bills. Securities Management determines the appropriate classification of securities at the time of purchase. Investments in debt securities that management has the positive intent and ability to hold to maturity are classified as held to maturity and carried at amortized cost. Securities not classified as held to maturity are classified as available for sale. Securities available for sale consist of debt securities that are available for sale to respond to changes in market interest rates, liquidity needs, changes in funding sources and other similar factors. These assets are specifically identified and are carried at fair value. Changes in fair value of available for sale securities, net of applicable income taxes, are reported as a separate component of shareholders’ equity. Washington Trust does not currently have securities designated as held to maturity and also does not maintain a trading portfolio. Premiums and discounts are amortized and accreted over the term of the securities on a method that approximates the level yield method. The amortization and accretion is included in interest income on securities. Interest income is recognized when earned. Realized gains or losses from sales of securities are recorded on the trade date and are determined using the specific identification method. The fair values of securities may be based on either quoted market prices or third-party pricing services. The Corporation excludes accrued interest from the amortized cost basis of debt securities and reports accrued interest in other assets in the Consolidated Balance Sheets. The Corporation also excludes accrued interest from the estimate of credit losses on debt securities. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a debt security placed on nonaccrual is reversed against interest income. Allowance for Credit Losses on Securities For available for sale debt securities in an unrealized loss position, management first assesses whether the Corporation intends to sell, or if it is likely that the Corporation will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through a provision for credit losses recognized in the Consolidated Statements of Income. For debt securities available for sale that do not meet either of these criteria, management evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers both quantitative and qualitative factors. A substantial portion of available for sale debt securities held by the Corporation are obligations issued by U.S. government agency and U.S. government-sponsored enterprises, including mortgage-backed securities. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major credit rating agencies and have a long history of no credit losses. For these securities, management takes into consideration the long history of no credit losses and other factors to assess the risk of nonpayment even if the U.S. government were to default. As such, the Corporation utilized a zero credit loss estimate for these securities. For available for sale debt securities that are not guaranteed by U.S. government agencies and U.S. government-sponsored enterprises, such as individual name issuer trust preferred debt securities and corporate bonds, management utilizes a third-party credit modeling tool based on observable market data, which assists management in identifying any potential credit risk associated with these available for sale debt securities. This model estimates probability of default, loss given default and exposure at default for each security. In addition, qualitative factors are also considered, including the extent to which fair value is less than amortized cost, changes to the credit rating of the security by a rating agency, and adverse conditions specifically related to the security, among other factors. If a credit loss exists based on the results of this assessment, an ACL (contra asset) is recorded, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is considered market-related and is recognized in other comprehensive income, net of taxes. Changes in the ACL on available for sale debt securities are recorded as provision for credit losses. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Federal Home Loan Bank Stock The Bank is a member of the FHLB, which is a cooperative that provides services, including funding in the form of advances, to its member banking institutions. The primary reason for the Bank’s membership is to gain access to a reliable source of wholesale funding in order to manage interest rate risk. The purchase of FHLB stock is a requirement for a member to gain access to funding and the Bank must own a minimum amount of FHLB stock, calculated periodically based primarily on its level of borrowings from the FHLB. The Bank purchases FHLB stock in proportion to the volume of funding received and views the purchases as a necessary long-term investment for the purposes of balance sheet liquidity and not for investment return. No market exists for shares of FHLB stock and therefore, it is carried at cost. FHLB stock may be redeemed at par value five years following termination of FHLB membership, subject to limitations which may be imposed by the FHLB or its regulator, the Federal Housing Finance Board, to maintain capital adequacy of the FHLB. While the Bank currently has no intentions to terminate its FHLB membership, the ability to redeem its investment in FHLB stock would be subject to the conditions imposed by the FHLB. The Bank monitors its investment to determine if impairment exists. Based on the capital adequacy and the liquidity position of the FHLB, management believes there is no impairment related to the carrying amount of FHLB stock included in the Consolidated Balance Sheet as of December 31, 2023. Mortgage Banking Activities Mortgage Loans Held for Sale Residential real estate mortgage loans originated and intended for sale in the secondary market are classified as held for sale. ASC 825, “Financial Instruments” allows for the irrevocable option to elect fair value accounting for the initial and subsequent measurement for certain financial assets and liabilities on a contract-by-contract basis that may otherwise not be required to be measured at fair value under other accounting standards. The Corporation has elected the fair value option for mortgage loans held for sale in order to better match changes in fair values of the loans with changes in the fair value of the derivative forward sale commitment contracts used to economically hedge them. Changes in the fair value of mortgage loans held for sale accounted for under the fair value option are included in mortgage banking revenues. Gains and losses on residential loan sales are recognized at the time of sale and are included in mortgage banking revenues. Upfront fees and costs related to mortgage loans held for sale for which the fair value option was elected are recognized in mortgage banking revenues as received / incurred and are not deferred. Commissions received on mortgage loans brokered to various investors are recognized when received and are included in mortgage banking revenues. Loan Servicing Rights When residential real estate mortgage loans held for sale are sold with servicing retained, mortgage servicing right assets are recognized as separate assets. Mortgage servicing rights are originally recorded at fair value. Fair value is based on a valuation model that incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, ancillary income, prepayment speeds, and default rates and losses. Mortgage servicing rights are included in other assets and are amortized as an offset to mortgage banking revenues over the period of estimated net servicing income. Mortgage servicing rights are periodically evaluated for impairment based on their fair value. Impairment is measured on an aggregated basis by stratifying the rights based on homogeneous characteristics such as note rate and loan type. Any impairment is recognized through a valuation allowance and as a reduction to mortgage banking revenues. Loans Portfolio Loans Loans are carried at the principal amount outstanding, adjusted by partial charge-offs and net of unamortized deferred loan origination fees and costs. Interest income is accrued on a level yield basis based upon principal amounts outstanding, except for loans on nonaccrual status. Deferred loan origination fees and costs are amortized as an adjustment to yield over the term of the related loans. For purchased loans, which did not show signs of credit deterioration at the time of purchase, interest income is also accrued on a level yield basis based upon principal amounts outstanding and is then further adjusted by accretion of any discount or amortization of any premium associated with the loans. Nonaccrual Loans Loans, with the exception of certain well-secured loans that are in the process of collection, are placed on nonaccrual status and interest recognition is suspended when such loans are 90 days or more overdue with respect to principal and/or interest, or sooner if considered appropriate by management. Well-secured loans are permitted to remain on accrual status provided that full collection of principal and interest is assured and the loan is in the process of collection. Loans are also placed on nonaccrual status when, in the opinion of management, full collection of principal and interest is doubtful. When loans are placed on nonaccrual status, interest previously accrued but not collected is reversed against current period income. Subsequent interest payments received on nonaccrual loans are applied to the outstanding principal balance of the loan or recognized as interest income depending on management’s assessment of the ultimate collectability of the loan. Loans are removed from nonaccrual status when they have been current as to principal and interest (generally for six months), the borrower has demonstrated an ability to comply with repayment terms, and when, in management’s opinion, the loans are considered to be fully collectible. Troubled Loan Modifications Effective January 1, 2023, a loan that has been modified is considered a TLM when the modification is made to a borrower experiencing financial difficulty and the modification has a direct impact to the contractual cash flows. If both of the aforementioned criteria are met, then the modification is considered a TLM and subject to the enhanced disclosure requirements. In the course of resolving problem loans, the Corporation may choose to modify the contractual terms of loans to borrowers who are experiencing financial difficulty. Such modifications to borrowers experiencing financial difficulty may include modified contractual terms that have a direct impact to contractual cash flows, including principal forgiveness, interest rate reductions, maturity extensions, other-than-insignificant payment delays, or any combination thereof. Debt could be bifurcated with separate terms for each tranche of the TLM. Executing a TLM in lieu of aggressively enforcing the collection of the loan may benefit the Corporation by increasing the ultimate probability of collection. The following is a description of each type of modifications for a TLM: • Principal forgiveness results in the reduction in the outstanding principal balance of the loan and can result voluntarily through renegotiated contractual terms with the borrower or involuntarily through a bankruptcy proceeding. • An interest rate reduction results in the contractual interest rate being reduced from the original agreement. • A maturity extension represents an extension of the term of the loan beyond its original contractual maturity date. • An other-than-insignificant payment delay is a deferral arrangement with the borrower, which allows them to delay a scheduled loan payment to a later date. The Corporation considers that a three months or less payment delay generally would be considered insignificant. • A combination includes loans that have undergone more than one of the above loan modification types. Nonaccrual loans that become TLMs generally remain on nonaccrual status for six months, subsequent to being modified, before management considers their return to accrual status. If a TLM is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. TLMs are reported as such for at least one year from the date of the modification. If the TLM performs in accordance with the modified contractual terms for that period of time, it would be removed from this classification. Troubled Debt Restructured Loans Prior to the adoption of ASU 2022-02, a loan that had been modified or renewed was considered to be a TDR when two conditions were met: 1) the borrower was experiencing financial difficulty and 2) concessions were made for the borrower’s benefit that would not otherwise have been considered for a borrower or a transaction with similar credit risk characteristics. These concessions may have included modifications of the terms of the debt such as deferral of payments, extension of maturity, reduction of principal balance, reduction of the stated interest rate other than normal market rate adjustments, or a combination of these concessions. Debt could be bifurcated with separate terms for each tranche of the restructured debt. Restructuring of a loan in lieu of aggressively enforcing the collection of the loan may benefit the Corporation by increasing the ultimate probability of collection. TDRs were classified as accruing or non-accruing based on management’s assessment of the collectability of the loan. Loans that were already on nonaccrual status at the time of the restructuring generally remained on nonaccrual status for approximately six months before management considered such loans for return to accruing status. Accruing restructured loans were placed into nonaccrual status if and when the borrower failed to comply with the restructured terms and management deemed it unlikely that the borrower would return to a status of compliance in the near term and full collection of principal and interest was in doubt. TDRs were reported as such for at least one year from the date of the restructuring. In years after the restructuring, TDRs were removed from this classification if the restructuring did not involve a below-market rate concession and the loan was performing in accordance with their modified contractual terms for a reasonable period of time. Individually Analyzed Loans Individually analyzed loans are individually assessed for credit impairment and include nonaccrual commercial loans, TLMs, as well as certain other loans based on the underlying risk characteristics and the discretion of management to individually analyze such loans. Prior to January 1, 2023, individually analyzed loans also included TDRs. Allowance for Credit Losses on Loans The ACL on loans is established through a provision for credit losses recognized in the Consolidated Statements of Income. The ACL on loans is also increased by recoveries of amounts previously charged-off and is reduced by charge-offs on loans. Loan charge-offs are recognized when management believes the collectability of the principal balance outstanding is unlikely. Full or partial charge-offs on collateral dependent individually analyzed loans are generally recognized when the collateral is deemed to be insufficient to support the carrying value of the loan. The ACL on loans is management’s estimate of expected lifetime credit losses on loans carried at amortized cost. The Corporation made an accounting policy election to exclude accrued interest from the amortized cost basis of loans and reports accrued interest in other assets in the Consolidated Balance Sheets. The Corporation also excludes accrued interest from the estimate of credit losses on loans. The level of the ACL on loans is based on management’s ongoing review of all relevant information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the calculation of loss given default and the estimation of expected credit losses. As discussed further below, adjustments to historical information are made for differences in specific risk characteristics that may not be reflected in historical loss rates. Management employs a process and methodology to estimate the ACL on loans that evaluates both quantitative and qualitative factors. In accordance with the Corporation’s ACL policy, the methodology is reviewed no less than annually. The methodology for evaluating quantitative factors consists of two basic components. The first component involves pooling loans into portfolio segments for loans that share similar risk characteristics. Pooled loan portfolio segments include CRE (including a commercial construction sub-segment), C&I, residential real estate, home equity and other consumer loans. The second component involves identifying individually analyzed loans that do not share similar risk characteristics with loans that are pooled into portfolio segments. Individually analyzed loans include nonaccrual commercial loans, TLMs, as well as certain other loans based on the underlying risk characteristics and the discretion of management to individually analyze such loans. Prior to January 1, 2023, individually analyzed loans included reasonably expected TDRs and executed TDRs. For loans that are individually analyzed, the ACL is measured using a DCF method based upon the loan’s contractual effective interest rate, or at the loan’s observable market price, or, if the loan is collateral dependent, at the fair value of the collateral. Factors management considers when measuring the extent of expected credit loss include payment status, collateral value, borrower financial condition, guarantor support and the probability of collecting scheduled principal and interest payments when due. For collateral dependent loans for which repayment is to be provided substantially through the sale of the collateral, management adjusts the fair value for estimated costs to sell. For collateral dependent loans for which repayment is to be provided substantially through the operation of the collateral, estimated costs to sell are not incorporated into the measurement. Management may also adjust appraised values to reflect estimated market value declines or apply other discounts to appraised values for unobservable factors resulting from its knowledge of circumstances associated with the collateral. For pooled loans, the Corporation utilizes a DCF methodology to estimate credit losses over the expected life of the loan. The life of the loan excludes expected extensions, renewals and modifications, unless the extension or renewal options are included in the original or modified contract terms and not unconditionally cancellable by the Corporation. The methodology incorporates a probability of default and loss given default framework. Default triggers include the loan has become past due by 90 or more days, a charge-off has occurred, the loan has been placed on nonaccrual status, the loan has been modified as a TLM (effective January 1, 2023; TDR prior to January 1, 2023), or the loan is risk-rated as special mention or classified. Loss given default is estimated based on historical credit loss experience. Probability of default is estimated utilizing a regression model that incorporates econometric factors. Econometric factors are selected based on the correlation of the factor to historical credit losses for each portfolio segment. The following table summarizes the econometric factors utilized for each loan portfolio segment as of the dates indicated: Econometric Factors Loan portfolio segment At December 31, 2023 At December 31, 2022 CRE NUR & GDP NUR & GDP C&I NUR & GDP NUR & GDP Residential real estate NUR & HPI NUR & HPI Home equity NUR & HPI NUR & HPI Other consumer GDP GDP To estimate the probability of default, the model utilizes forecasted econometric factors over a one-year reasonable and supportable forecast period. After the forecast period, the econometric factors revert to their historical mean on a straight-line basis over a one-year reversion period resulting in a constant default rate after the reversion period. The DCF methodology combines the probability of default, the loss given default, prepayment speeds and the remaining life of the loan to estimate a reserve for each loan. The sum of all the loan level reserves are aggregated for each portfolio segment and a loss rate factor is derived. Quantitative loss factors are also supplemented by certain qualitative risk factors reflecting management’s view of how losses may vary from those represented by quantitative loss rates. The qualitative risk factors management considers include: 1) changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses; 2) changes in international, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments; 3) changes in the nature and volume of the portfolio and in the terms of loans; 4) changes in the experience, ability, and depth of lending management and other relevant staff; 5) changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or rated loans; 6) changes in the quality of the institution’s credit review system; 7) changes in the value of underlying collateral for collateral dependent loans; 8) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and 9) the effect of other external factors such as legal and regulatory requirements on the level of estimated credit losses in the institution’s existing portfolio. Qualitative loss factors are applied to each portfolio segment with the range of amounts determined by historical loan charge-offs of a peer group of similar-sized regional banks. Because the methodology is based upon historical experience and trends, current economic data, reasonable and supportable forecasts, as well as management’s judgment, factors may arise that result in different estimations. Deteriorating conditions or assumptions could lead to further increases in the ACL on loans, conversely improving conditions or assumptions could lead to further reductions in the ACL on loans. In addition, various regulatory agencies periodically review the ACL on loans. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination. The ACL on loans is an estimate, and ultimate losses may vary from management’s estimate. Allowance for Credit Losses on Unfunded Commitments The ACL on unfunded commitments is management’s estimate of expected lifetime credit losses over the expected contractual term in which the Corporation is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Corporation. Unfunded commitments for home equity lines of credit and commercial demand loans are considered unconditionally cancellable for regulatory capital purposes and, therefore, are excluded from the calculation to estimate the ACL on unfunded commitments. For each portfolio, estimated loss rates and funding factors are applied to the corresponding balance of unfunded commitments. The estimated loss rates applied to unfunded commitments are the same quantitative and qualitative loss rates applied to the corresponding on-balance sheet amounts in determining the ACL on loans. The estimated funding factor applied to unfunded commitments represents the likelihood that the funding will occur and is based upon the Corporation’s average historical utilization rate for each portfolio. The ACL on unfunded commitments is included in other liabilities in the Consolidated Balance Sheets. The ACL on unfunded commitments is adjusted through a provision for credit losses recognized in the Consolidated Statements of Income. Premises and Equipment Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation. Depreciation for financial reporting purposes is calculated on the straight-line method over the estimated useful lives of assets. For leasehold improvements, the estimated useful life is the shorter of the expected lease term or the estimated useful life of the improvement. Expected lease terms include lease renewal options to the extent that the exercise of such renewals is reasonably assured. The estimated useful lives of premises and improvements range from 5 to 40 years. For furniture, fixtures and equipment, the estimated useful lives range from 3 to 20 years. Repairs and maintenance costs are charged to noninterest expense as incurred. Leases The Corporation has committed to rent premises used in business operations under non-cancelable operating leases and determines if an arrangement meets the definition of a lease upon inception. Operating leases are recorded on the balance sheet, through the recognition of an operating lease ROU asset and an operating lease liability at the commencement date of the new lease. ROU assets represent a right to use an underlying asset for the contractual lease term. Operating lease liabilities represent an obligation to make lease payments arising from the lease. The Corporation’s leases do not provide an implicit interest rate, therefore the Corporation uses its incremental collateralized borrowing rates commensurate with the underlying lease terms to determine the present value of operating lease liabilities. The Corporation’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Corporation’s lease agreements do not contain any residual value guarantees. Operating leases with terms of 12 months or less are included in ROU assets and operating lease liabilities recorded in the Consolidated Balance Sheets. Operating lease terms include options to extend when it is reasonably certain that the Corporation will exercise such options, determined on a lease-by-lease basis. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Variable lease components, such as consumer price index adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities. Bank-Owned Life Insurance The investment in BOLI represents the cash surrender value of life insurance policies on the lives of certain employees who have provided positive consent allowing the Bank to be the beneficiary of such policies. Increases in the cash value of the policies, as well as insurance proceeds received, are recorded in noninterest income and are not subject to income taxes. The financial strength of the insurance carrier is reviewed prior to the purchase of BOLI and annually thereafter. Goodwill and Identifiable Intangible Assets Goodwill represents the excess of the purchase price over the net fair value of the acquired businesses. Goodwill is not amortized, but is tested for impairment at the reporting unit level (defined as the segment level), at least annually in the fourth quarter or more frequently whenever events or circumstances occur that indicate that it is more-likely-than-not that an impairment loss has occurred. In assessing impairment, management has the option to perform a qualitative analysis to determine whether the existence of events or circumstances leads to a determination that it is more-likely-than-not that the fair value of the reporting unit is less than its carrying amount. If, after assessing the totality of such events or circumstances, we determine it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then we would not be required to perform an impairment test. The quantitative impairment analysis requires a comparison of each reporting unit’s fair value to its carrying value to identify potential impairment. Goodwill impair

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	12 Months Ended
	Dec. 31, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Accounting Standards Adopted in 2023 Financial Instruments - Credit Losses - ASC 326 ASU No. 2022-02, “Troubled Debt Restructurings and Vintage Disclosures” (“ASU 2022-02”), was issued in March 2022 to provide updates on the accounting treatment for TDRs and related disclosures requirements, as well as modifying the disclosure requirement associated with the existing credit quality indicators “vintage” disclosure. With respect to TDRs, ASU 2022-02 eliminates the recognition and measurement guidance for TDRs under current GAAP and instead requires that the Corporation evaluate whether the modification represents a new loan or a continuation of an existing loan, consistent with the current GAAP treatment for other loan modifications. In addition, ASU 2022-02 eliminates existing disclosure requirements on TDRs and replaces with enhanced disclosure requirements related to certain loan modifications made to borrowers experiencing financial difficulty. ASU 2022-02 also provides an update to the existing credit quality indicators “vintage” tabular disclosure requiring current period gross write-offs to be disclosed by year of origination for each loan segment. The Corporation adopted the provisions of ASU 2022-02 on January 1, 2023 on a prospective basis. The adoption of this ASU did not have a material impact on the consolidated financial statements. See Note 4 for additional information regarding modifications to borrowers experiencing financial difficulty. Accounting Standards Pending Adoption Segment Reporting - Topic 280 Accounting Standards Update No. 2023-07, “Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures” (“ASU 2023-07”), was issued in November 2023 to enhance and provide additional transparency on segment disclosures, including disclosure of significant segment expense provided to the chief operating decision maker (“CODM”), as well as disclosing the title and position of the CODM and how they use reported results in assessing segment performance and allocation of resources. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The provisions under ASU 2023-07 should be applied on a retrospective basis. ASU 2023-07 is not expected to have a material impact on the Corporation’s financial statements. Income Taxes - Topic 740 Accounting Standards Update No. 2023-09, “Income Taxes (Topic 740) - Improvements to Income Tax Disclosures” (“ASU 2023-09”), was issued in December 2023 to enhance and provide additional transparency on income tax disclosures. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The provisions under ASU 2023-09 should be applied on a prospective basis, however retrospective application is also permitted. ASU 2023-09 is not expected to have a material impact on the Corporation’s financial statements.

Securities

Securities	12 Months Ended
	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Securities	Securities Available for Sale Debt Securities The following tables present the amortized cost, gross unrealized holding gains, gross unrealized holding losses, ACL on securities and fair value of securities by major security type and class of security: (Dollars in thousands) December 31, 2023 Amortized Cost Unrealized Gains Unrealized Losses ACL Fair Value Available for Sale Debt Securities: Obligations of U.S. government-sponsored enterprises $250,450 $15 ($24,723) $— $225,742 Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 879,597 246 (125,887) — 753,956 Individual name issuer trust preferred debt securities 9,400 — (607) — 8,793 Corporate bonds 13,182 — (1,293) — 11,889 Total available for sale debt securities $1,152,629 $261 ($152,510) $— $1,000,380 (Dollars in thousands) December 31, 2022 Amortized Cost Unrealized Gains Unrealized Losses ACL Fair Value Available for Sale Debt Securities: Obligations of U.S. government-sponsored enterprises $231,203 $1 ($31,622) $— $199,582 Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 912,581 269 (138,748) — 774,102 Individual name issuer trust preferred debt securities 9,387 — (627) — 8,760 Corporate bonds 13,169 — (1,685) — 11,484 Total available for sale debt securities $1,166,340 $270 ($172,682) $— $993,928 Accrued interest receivable on available for sale debt securities totaled $3.7 million and $3.1 million, respectively, as of December 31, 2023 and 2022. At December 31, 2023 and 2022, securities with a fair value of $311.9 million and $294.8 million, respectively, were pledged as collateral for FHLB borrowings, potential borrowings with the FRBB, certain public deposits and for other purposes. See Note 13 for additional discussion of FHLB borrowings. The schedule of maturities of available for sale debt securities is presented below. Mortgage-backed securities are included based on weighted average maturities, adjusted for anticipated prepayments. All other debt securities are included based on contractual maturities. Actual maturities may differ from amounts presented because certain issuers have the right to call or prepay obligations with or without call or prepayment penalties. (Dollars in thousands) December 31, 2023 Amortized Cost Fair Value Due in one year or less $86,534 $74,195 Due after one year to five years 475,831 416,771 Due after five years to ten years 308,465 267,513 Due after ten years 281,799 241,901 Total securities $1,152,629 $1,000,380 Included in the above table are debt securities with an amortized cost balance of $253.0 million and a fair value of $226.5 million at December 31, 2023 that are callable at the discretion of the issuers. Final maturities of the callable securities range from 6 months to 13 years, with call features ranging from 1 month to 7 months. Assessment of Available for Sale Debt Securities for Impairment Management assesses the decline in fair value of investment securities on a regular basis. Unrealized losses on debt securities may occur from current market conditions, increases in interest rates since the time of purchase, a structural change in an investment, volatility of earnings of a specific issuer, or deterioration in credit quality of the issuer. Management evaluates both qualitative and quantitative factors to assess whether an impairment exists. The following tables summarize available for sale debt securities in an unrealized loss position, for which an ACL on securities has not been recorded, segregated by length of time that the securities have been in a continuous unrealized loss position: (Dollars in thousands) Less than 12 Months 12 Months or Longer Total December 31, 2023 # Fair Unrealized # Fair Unrealized # Fair Unrealized Obligations of U.S. government-sponsored enterprises 1 $19,824 ($176) 20 $195,903 ($24,547) 21 $215,727 ($24,723) Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 8 43,887 (262) 154 698,115 (125,625) 162 742,002 (125,887) Individual name issuer trust preferred debt securities — — — 3 8,793 (607) 3 8,793 (607) Corporate bonds — — — 4 11,889 (1,293) 4 11,889 (1,293) Total temporarily impaired securities 9 $63,711 ($438) 181 $914,700 ($152,072) 190 $978,411 ($152,510) (Dollars in thousands) Less than 12 Months 12 Months or Longer Total December 31, 2022 # Fair Unrealized # Fair Unrealized # Fair Unrealized Obligations of U.S. government-sponsored enterprises 4 $20,115 ($638) 18 $169,466 ($30,984) 22 $189,581 ($31,622) Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 95 288,777 (24,960) 66 471,355 (113,788) 161 760,132 (138,748) Individual name issuer trust preferred debt securities — — — 3 8,760 (627) 3 8,760 (627) Corporate bonds — — — 4 11,484 (1,685) 4 11,484 (1,685) Total temporarily impaired securities 99 $308,892 ($25,598) 91 $661,065 ($147,084) 190 $969,957 ($172,682) There were no debt securities on nonaccrual status at December 31, 2023 and 2022 and, therefore there was no accrued interest related to debt securities reversed against interest income for 2023 and 2022. As of December 31, 2023, the Corporation does not intend to sell the debt securities in an unrealized loss position and has determined that it is more-likely-than-not that the Corporation will not be required to sell each security before the recovery of its amortized cost basis. In addition, management does not believe that any of the securities are impaired due to reasons of credit quality. As further described below, management believes the unrealized losses on these debt securities are primarily attributable to changes in the investment spreads and interest rates. Therefore, no ACL was recorded at both December 31, 2023 and 2022. Obligations of U.S. Government Agency and U.S. Government-Sponsored Enterprise Securities, including Mortgage-Backed Securities The contractual cash flows for these securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major credit rating agencies and have a long history of no credit losses. The issuers of these securities continue to make timely principal and interest payments and none of these securities were past due at December 31, 2023. As disclosed in Note 1, the Corporation utilizes a zero credit loss estimate for these securities. Individual Name Issuer Trust Preferred Debt Securities These securities in an unrealized loss position at December 31, 2023 included three trust preferred securities issued by three individual companies in the banking sector. Management reviewed the collectability of these securities taking into consideration such factors as the financial condition of the issuers, reported regulatory capital ratios of the issuers, credit ratings, including ratings in effect as of the reporting period date, as well as credit rating changes between the reporting period date and the filing date of this report, and other information. As of December 31, 2023, there was one individual name issuer trust preferred debt security with an amortized cost of $2.0 million and unrealized losses of $228 thousand that was rated below investment grade by S&P. We noted no downgrades to below investment grade between December 31, 2023 and the filing date of this report. Based on the information available through the filing date of this report, all individual name issuer trust preferred debt securities continue to accrue interest and make payments as expected with no payment deferrals or defaults on the part of the issuers. Corporate Bonds These securities in an unrealized loss position at December 31, 2023 included four corporate bond holdings issued by three individual companies in the financial services industry. Management reviewed the collectability of these securities taking into consideration such factors as the financial condition of the issuers, reported regulatory capital ratios of the issuers, credit ratings, including ratings in effect as of the reporting period date, as well as credit rating changes between the reporting period date and the filing date of this report, and other information. As of December 31, 2023, there was one corporate bond debt security with an amortized cost of $2.0 million and unrealized losses of $102 thousand that was rated below investment grade by S&P. We noted no downgrades to below investment grade between December 31, 2023 and the filing date of this report. Based on the information available through the filing date of this report, all corporate bond debt securities continue to accrue interest and make payments as expected with no payment deferrals or defaults on the part of the issuers.

Loans

Loans	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Loans	Loans The following table presents a summary of loans: (Dollars in thousands) December 31, 2023 2022 Commercial: Commercial real estate (1) $2,106,359 $1,829,304 Commercial & industrial (2) 605,072 656,397 Total commercial 2,711,431 2,485,701 Residential Real Estate: Residential real estate (3) 2,604,478 2,323,002 Consumer: Home equity 312,594 285,715 Other (4) 19,203 15,721 Total consumer 331,797 301,436 Total loans (5) $5,647,706 $5,110,139 (1) CRE consists of commercial mortgages primarily secured by income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings. (2) C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate. (3) Residential real estate consists of mortgage and homeowner construction loans secured by one- to four-family residential properties. (4) Other consists of loans to individuals secured by general aviation aircraft and other personal installment loans. (5) Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022. Loan balances exclude accrued interest receivable of $22.9 million and $17.6 million, respectively, as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, loans amounting to $3.4 billion and $2.4 billion, respectively, were pledged as collateral to the FHLB under a blanket pledge agreement and to the FRBB for the discount window. See Note 13 for additional disclosure regarding borrowings. Concentrations of Credit Risk A significant portion of our loan portfolio is concentrated among borrowers in southern New England and a substantial portion of the portfolio is collateralized by real estate in this area. The ability of single family residential and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity within the market area and real estate values. The ability of commercial borrowers to honor their repayment commitments is dependent on the general economy, as well as the health of the real estate economic sector in the Corporation’s market area. Past Due Loans Past due status is based on the contractual payment terms of the loan. The following tables present an aging analysis of past due loans, segregated by class of loans: (Dollars in thousands) Days Past Due December 31, 2023 Current 30-59 60-89 90 or More Total Past Due Total Loans Commercial: Commercial real estate $2,106,359 $— $— $— $— $2,106,359 Commercial & industrial 605,062 10 — — 10 605,072 Total commercial 2,711,421 10 — — 10 2,711,431 Residential Real Estate: Residential real estate 2,596,362 4,369 1,738 2,009 8,116 2,604,478 Consumer: Home equity 309,398 2,349 112 735 3,196 312,594 Other 19,180 20 3 — 23 19,203 Total consumer 328,578 2,369 115 735 3,219 331,797 Total loans $5,636,361 $6,748 $1,853 $2,744 $11,345 $5,647,706 (Dollars in thousands) Days Past Due December 31, 2022 Current 30-59 60-89 90 or More Total Past Due Total Loans Commercial: Commercial real estate $1,828,117 $1,187 $— $— $1,187 $1,829,304 Commercial & industrial 656,132 265 — — 265 656,397 Total commercial 2,484,249 1,452 — — 1,452 2,485,701 Residential Real Estate: Residential real estate 2,314,127 4,793 303 3,779 8,875 2,323,002 Consumer: Home equity 284,480 1,103 132 — 1,235 285,715 Other 15,705 16 — — 16 15,721 Total consumer 300,185 1,119 132 — 1,251 301,436 Total loans $5,098,561 $7,364 $435 $3,779 $11,578 $5,110,139 Included in past due loans as of December 31, 2023 and 2022, were nonaccrual loans of $6.9 million and $7.2 million, respectively. In addition, all loans 90 days or more past due at December 31, 2023 and 2022 were classified as nonaccrual. Nonaccrual Loans The following is a summary of nonaccrual loans, segregated by class of loans: (Dollars in thousands) December 31, 2023 December 31, 2022 Nonaccrual Loans Nonaccrual Loans With an ACL Without an ACL Total With an ACL Without an ACL Total Commercial: Commercial real estate $10,997 $21,830 $32,827 $— $— $— Commercial & industrial — 682 682 — — — Total commercial 10,997 22,512 33,509 — — — Residential Real Estate: Residential real estate 8,495 1,131 9,626 6,009 5,885 11,894 Consumer: Home equity 1,483 — 1,483 360 592 952 Other — — — — — — Total consumer 1,483 — 1,483 360 592 952 Total $20,975 $23,643 $44,618 $6,369 $6,477 $12,846 Accruing loans 90 days or more past due $— $— Nonaccrual loans of $37.7 million and $5.7 million, respectively, at December 31, 2023 and 2022 were current as to the payment of principal and interest. As of December 31, 2023 and 2022, nonaccrual loans secured by one- to four-family residential property amounting to $960 thousand and $2.9 million, respectively, were in process of foreclosure. There were no significant commitments to lend additional funds to borrowers whose loans were on nonaccrual status at December 31, 2023. The following table presents interest income recognized on nonaccrual loans: (Dollars in thousands) Interest Income Recognized Years Ended December 31, 2023 2022 Commercial: Commercial real estate $2,719 $— Commercial & industrial 59 — Total commercial 2,778 — Residential Real Estate: Residential real estate 466 398 Consumer: Home equity 107 62 Other 4 3 Total consumer 111 65 Total $3,355 $463 Troubled Loan Modifications As disclosed in Note 2, effective January 1, 2023, the Corporation adopted ASU 2022-02, which eliminated the accounting guidance for TDRs and added enhanced disclosures with respect to certain modifications for borrowers experiencing financial difficulty. The following table presents the carrying value at December 31, 2023, of TLMs made during the period indicated, segregated by class of loans and type of concession granted: (Dollars in thousands) Year ended December 31, 2023 Maturity Extension Combination (1) Total % (2) Commercial: Commercial real estate $13,780 $8,050 $21,830 1 % Commercial & industrial — — — — Total commercial 13,780 8,050 21,830 1 Total $13,780 $8,050 $21,830 — % (1) Combination includes an interest rate reduction, payment deferral and maturity extension. (2) Percentage of TLMs to the total loans outstanding within the respective loan class. The following table presents the financial effect of TLMs made during the period indicated, segregated by class of loans: (Dollars in thousands) Year ended December 31, 2023 Weighted Average Interest Rate Reduction Weighted Average Maturity Extension Weighted Average Other-than-Insignificant Payment Delay Commercial: Commercial real estate 3 % 10 12 Commercial & industrial — — — Total commercial 3 10 12 Total 3 % 10 12 Management closely monitors the performance of TLMs to understand the effectiveness of the modifications. The following table presents an aging analysis as of the date indicated, of TLMs that have been modified in the past 12 months: (Dollars in thousands) Days Past Due December 31, 2023 30-59 60-89 Over 90 Total Past Due Current Total Loans Commercial: Commercial real estate $— $— $— $— $21,830 $21,830 Commercial & industrial — — — — — — Total commercial — — — — 21,830 21,830 Total loans $— $— $— $— $21,830 $21,830 The total carrying value of TLMs at December 31, 2023 were included in nonaccrual loans. There were no TLMs made in the previous 12 months for which there was a subsequent payment default. There were no significant commitments to lend additional funds to borrowers experiencing financial difficulty whose loans were TLMs at December 31, 2023. Troubled Debt Restructurings As disclosed in Note 2, effective January 1, 2023, the Corporation adopted ASU 2022-02, which eliminated the accounting guidance for TDRs. Historical disclosures that were required prior to adoption of ASU 2022-02 are shown below. The following table presents the recorded investment in TDRs and other pertinent information: (Dollars in thousands) December 31, 2022 Accruing TDRs $3,571 Nonaccrual TDRs 5,073 Total $8,644 Specific reserves on TDRs included in the ACL on loans $115 Additional commitments to lend to borrowers with TDRs $— The following table presents TDRs occurring during the period indicated and the recorded investment pre- and post- modification: (Dollars in thousands) Outstanding Recorded Investment Year ended December 31, 2022 # of Loans Pre-Modification Post-Modification Commercial: Commercial real estate — $— $— Commercial & industrial 3 1,687 1,687 Total commercial 3 1,687 1,687 Total 3 $1,687 $1,687 The following table presents TDRs occurring during the period indicated by type of modification: (Dollars in thousands) Years ended December 31, 2022 Below-market interest rate concession $— Payment deferral — Maturity / amortization concession — Interest only payments — Combination (1) 1,687 Total $1,687 (1) Loans included in this classification were modified with a combination of any two of the concessions listed in this table. In 2022, there were no TDRs modified within the previous 12 months for which there was a payment default. Individually Analyzed Loans Individually analyzed loans include nonaccrual commercial loans, TLMs and certain other loans based on the underlying risk characteristics and the discretion of management to individually analyze such loans. Prior to January 1, 2023, individually analyzed loans also included TDRs. As of December 31, 2023, the carrying value of individually analyzed loans amounted to $34.6 million, all of which were considered collateral dependent. As of December 31, 2022, individually analyzed loans amounted to $10.0 million, of which $8.5 million were considered collateral dependent. For collateral dependent loans where management has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and repayment of the loan is to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the loan as of the measurement date. See Note 10 for additional disclosure regarding fair value of individually analyzed collateral dependent loans. The following table presents the carrying value of collateral dependent individually analyzed loans: (Dollars in thousands) December 31, 2023 December 31, 2022 Carrying Value Related Allowance Carrying Value Related Allowance Commercial: Commercial real estate (1) $32,827 $97 $2,103 $— Commercial & industrial (2) 682 — — — Total commercial 33,509 97 2,103 — Residential Real Estate: Residential real estate (3) 1,131 — 5,760 — Consumer: Home equity (3) — — 592 — Other — — — — Total consumer — — 592 — Total $34,640 $97 $8,455 $— (1) Secured by income-producing property. (2) Secured by business assets. (3) Secured by one- to four-family residential properties. Credit Quality Indicators Commercial The Corporation utilizes an internal rating system to assign a risk to each of its commercial loans. Loans are rated on a scale of 1 to 10. This scale can be assigned to three broad categories including “pass” for ratings 1 through 6, “special mention” for 7-rated loans, and “classified” for loans rated 8, 9 or 10. The loan risk rating system takes into consideration parameters including the borrower’s financial condition, the borrower’s performance with respect to loan terms, the adequacy of collateral, the adequacy of guarantees and other credit quality characteristics. The Corporation takes the risk rating into consideration along with other credit attributes in the establishment of an appropriate ACL on loans. See Note 5 for additional information. A description of the commercial loan categories is as follows: Pass - Loans with acceptable credit quality, defined as ranging from superior or very strong to a status of lesser stature. Superior or very strong credit quality is characterized by a high degree of cash collateralization or strong balance sheet liquidity. Lesser stature loans have an acceptable level of credit quality, but may exhibit some weakness in various credit metrics such as collateral adequacy, cash flow, performance or may be in an industry or of a loan type known to have a higher degree of risk. These weaknesses may be mitigated by secondary sources of repayment, including SBA guarantees. Special Mention - Loans with potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Bank’s position as creditor at some future date. Special Mention assets are not adversely classified and do not expose the Bank to sufficient risk to warrant adverse classification. Examples of these conditions include but are not limited to outdated or poor quality financial data, strains on liquidity and leverage, losses or negative trends in operating results, marginal cash flow, weaknesses in occupancy rates or trends in the case of commercial real estate and frequent delinquencies. Classified - Loans identified as “substandard,” “doubtful” or “loss” based on criteria consistent with guidelines provided by banking regulators. A “substandard” loan has defined weaknesses which make payment default or principal exposure likely, but not yet certain. Such loans are apt to be dependent upon collateral liquidation, a secondary source of repayment or an event outside of the normal course of business. The loans are closely watched and are either already on nonaccrual status or may be placed on nonaccrual status when management determines there is uncertainty of collectability. A “doubtful” loan is placed on nonaccrual status and has a high probability of loss, but the extent of the loss is difficult to quantify due to dependency upon collateral having a value that is difficult to determine or upon some near-term event which lacks certainty. A loan in the “loss” category is considered generally uncollectible or the timing or amount of payments cannot be determined. “Loss” is not intended to imply that the loan has no recovery value, but rather, it is not practical or desirable to continue to carry the asset. The Corporation’s procedures call for loan risk ratings and classifications to be revised whenever information becomes available that indicates a change is warranted. On a quarterly basis, management reviews a watched asset list, which generally consists of commercial loans that are risk-rated 6 or worse, highly leveraged transaction loans, high-volatility commercial real estate and other selected loans. Management’s review focuses on the current status of the loans, the appropriateness of risk ratings and strategies to improve the credit. An annual credit review program is conducted by a third party to provide an independent evaluation of the creditworthiness of the commercial loan portfolio, the quality of the underwriting and credit risk management practices and the appropriateness of the risk rating classifications. This review is supplemented with selected targeted internal reviews of the commercial loan portfolio. Residential and Consumer Management monitors the relatively homogeneous residential real estate and consumer loan portfolios on an ongoing basis using delinquency information by loan type. In addition, other techniques are utilized to monitor indicators of credit deterioration in the residential real estate loans and home equity consumer loans. Among these techniques is the periodic tracking of loans with an updated Fair Isaac Corporation (commonly known as “FICO”) score and an updated estimated LTV ratio. LTV is estimated based on such factors as geographic location, the original appraised value and changes in median home prices, and takes into consideration the age of the loan. The results of these analyses and other credit review procedures, including selected targeted internal reviews, are taken into account in the determination of qualitative loss factors for residential real estate and home equity consumer credits. The following table summarizes the Corporation’s loan portfolio by credit quality indicator and loan portfolio segment as of December 31, 2023: (Dollars in thousands) Term Loans Amortized Cost by Origination Year 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Revolving Loans Converted to Term Loans Total Commercial: CRE: Pass $327,139 $598,946 $396,468 $168,451 $167,484 $333,356 $42,095 $1,032 $2,034,971 Special Mention — — — — — 16,630 — — 16,630 Classified 21,830 — 18,430 — 14,498 — — — 54,758 Total CRE 348,969 598,946 414,898 168,451 181,982 349,986 42,095 1,032 2,106,359 Gross charge-offs — — — — — 373 — — 373 C&I: Pass 55,607 124,894 52,282 49,812 72,876 145,361 90,664 587 592,083 Special Mention 11,119 — — — 181 — — — 11,300 Classified — 818 189 — 682 — — — 1,689 Total C&I 66,726 125,712 52,471 49,812 73,739 145,361 90,664 587 605,072 Gross charge-offs 37 — — — — — — — 37 Residential Real Estate: Residential real estate: Current 431,563 808,442 666,447 255,554 113,462 320,894 — — 2,596,362 Past Due — — — 886 594 6,636 — — 8,116 Total residential real estate 431,563 808,442 666,447 256,440 114,056 327,530 — — 2,604,478 Gross charge-offs — — — — — — — — — Consumer: Home equity: Current 24,925 14,997 6,829 2,919 1,982 3,696 241,459 12,591 309,398 Past Due — — — — 130 829 1,301 936 3,196 Total home equity 24,925 14,997 6,829 2,919 2,112 4,525 242,760 13,527 312,594 Gross charge-offs — — — — — — — — — Other: Current 6,777 3,530 3,685 1,001 120 3,824 243 — 19,180 Past Due 21 — — — — — 2 — 23 Total other 6,798 3,530 3,685 1,001 120 3,824 245 — 19,203 Gross charge-offs 159 — 8 — — — — — 167 Total Loans $878,981 $1,551,627 $1,144,330 $478,623 $372,009 $831,226 $375,764 $15,146 $5,647,706 Total gross charge-offs $196 $— $8 $— $— $373 $— $— $577 The following table summarizes the Corporation’s loan portfolio by credit quality indicator and loan portfolio segment as of December 31, 2022: (Dollars in thousands) Term Loans Amortized Cost by Origination Year 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Revolving Loans Converted to Term Loans Total Commercial: CRE: Pass $591,596 $383,062 $177,286 $170,259 $148,371 $242,061 $6,243 $1,437 $1,720,315 Special Mention 20,579 22,324 328 24,270 28,676 10,564 146 — 106,887 Classified — — 503 — 1,187 412 — — 2,102 Total CRE 612,175 405,386 178,117 194,529 178,234 253,037 6,389 1,437 1,829,304 C&I: Pass 127,152 63,180 71,265 86,470 85,011 114,241 90,987 745 639,051 Special Mention 13,566 — — — 1,427 — 1,426 — 16,419 Classified — 225 — 7 — — 695 — 927 Total C&I 140,718 63,405 71,265 86,477 86,438 114,241 93,108 745 656,397 Residential Real Estate: Residential real estate: Current 838,566 707,760 277,613 123,098 72,541 294,549 — — 2,314,127 Past Due — 600 — 266 2,315 5,694 — — 8,875 Total residential real estate 838,566 708,360 277,613 123,364 74,856 300,243 — — 2,323,002 Consumer: Home equity: Current 20,665 8,308 3,742 2,406 1,947 3,139 235,004 9,268 284,479 Past Due — — — — 68 98 548 522 1,236 Total home equity 20,665 8,308 3,742 2,406 2,015 3,237 235,552 9,790 285,715 Other: Current 4,231 4,287 1,676 299 235 4,726 251 — 15,705 Past Due 16 — — — — — — — 16 Total other 4,247 4,287 1,676 299 235 4,726 251 — 15,721 Total Loans $1,616,371 $1,189,746 $532,413 $407,075 $341,778 $675,484 $335,300 $11,972 $5,110,139 Washington Trust may renew commercial loans at or immediately prior to their maturity. In the tables above, renewals subject to full credit evaluation before being granted are reported as originations in the period renewed. In addition, loans with extensions of maturity dates of more than three months are reported as originations in the period extended. Loan Servicing Activities Loans sold with servicing retained result in the capitalization of loan servicing rights. The following table presents an analysis of loan servicing rights: (Dollars in thousands) Loan Servicing Valuation Total Balance at December 31, 2020 $7,588 ($154) $7,434 Loan servicing rights capitalized 5,671 — 5,671 Amortization (3,438) — (3,438) Decrease in impairment reserve — 154 154 Balance at December 31, 2021 9,821 — 9,821 Loan servicing rights capitalized 957 — 957 Amortization (1,763) — (1,763) Balance at December 31, 2022 9,015 — 9,015 Loan servicing rights capitalized 1,069 — 1,069 Amortization (1,538) — (1,538) Increase in impairment reserve — (34) (34) Balance at December 31, 2023 $8,546 ($34) $8,512 The following table presents estimated aggregate amortization expense related to loan servicing assets: (Dollars in thousands) Years ending December 31: 2024 $1,330 2025 1,123 2026 948 2027 801 2028 676 2029 and thereafter 3,668 Total estimated amortization expense $8,546 Loans sold to others may be serviced by the Corporation on a fee basis under various agreements. Loans serviced for others are not included in the Consolidated Balance Sheets. The following table presents the balance of loans serviced for others by loan portfolio: (Dollars in thousands) December 31, 2023 2022 Residential real estate $1,454,342 $1,457,896 Commercial 135,954 107,762 Total $1,590,296 $1,565,658

Allowance for Credit Losses on

Allowance for Credit Losses on Loans	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Allowance for Credit Losses on Loans	Allowance for Credit Losses on Loans The ACL on loans is management’s estimate of expected lifetime credit losses on loans carried at amortized cost. The level of the ACL on loans is based on management’s ongoing review of all relevant information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. The following table presents the activity in the ACL on loans for the year ended December 31, 2023: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $18,435 $10,356 $28,791 $7,740 $1,115 $381 $1,496 $38,027 Charge-offs (373) (37) (410) — — (167) (167) (577) Recoveries — 12 12 3 10 32 42 57 Provision 6,082 (2,243) 3,839 (340) (77) 128 51 3,550 Ending Balance $24,144 $8,088 $32,232 $7,403 $1,048 $374 $1,422 $41,057 The following table presents the activity in the ACL on loans for the year ended December 31, 2022: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $18,933 $10,832 $29,765 $7,860 $1,069 $394 $1,463 $39,088 Charge-offs — (36) (36) — — (148) (148) (184) Recoveries 445 29 474 21 12 45 57 552 Provision (943) (469) (1,412) (141) 34 90 124 (1,429) Ending Balance $18,435 $10,356 $28,791 $7,740 $1,115 $381 $1,496 $38,027 The following table presents the activity in the ACL on loans for the year ended December 31, 2021: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $22,065 $12,228 $34,293 $8,042 $1,300 $471 $1,771 $44,106 Charge-offs — (307) (307) (107) (183) (66) (249) (663) Recoveries — 41 41 89 91 25 116 246 Provision (3,132) (1,130) (4,262) (164) (139) (36) (175) (4,601) Ending Balance $18,933 $10,832 $29,765 $7,860 $1,069 $394 $1,463 $39,088

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment The following presents a summary of premises and equipment: (Dollars in thousands) December 31, 2023 2022 Land $6,042 $6,042 Premises and improvements 48,573 47,029 Furniture, fixtures and equipment 23,980 24,463 Total premises and equipment 78,595 77,534 Less: accumulated depreciation 46,304 45,984 Total premises and equipment, net $32,291 $31,550 The following table presents a summary of depreciation expense: (Dollars in thousands) Year ended December 31, Fixed Asset Type Income Statement Line Item 2023 2022 2021 Premises and improvements Net occupancy $1,840 $1,668 $1,470 Furniture, fixtures and equipment Equipment 2,165 1,797 1,941 Total depreciation expense $4,005 $3,465 $3,411

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	Leases The Corporation has committed to rent premises used in business operations under non-cancelable operating leases and determines if an arrangement meets the definition of a lease upon inception. Operating lease ROU assets amounted to $29.4 million and $27.2 million, respectively, as of December 31, 2023 and 2022. Operating lease liabilities totaled $32.0 million and $29.6 million, respectively, as of December 31, 2023 and 2022. As of December 31, 2023, there were no operating leases that had not yet commenced. As of December 31, 2022, there were three operating leases that had not yet commenced. The following table presents information regarding the Corporation’s operating leases: At December 31, 2023 2022 Weighted average discount rate 3.80 % 3.34 % Range of lease expiration dates 3 months - 24 years 7 months - 25 years Range of lease renewal options 3 years - 5 years 3 years - 5 years Weighted average remaining lease term 13.1 years 13.3 years The following table presents the undiscounted annual lease payments under the terms of the Corporation’s operating leases at December 31, 2023, including a reconciliation to the present value of operating lease liabilities recognized in the Consolidated Balance Sheets: (Dollars in thousands) Years ending December 31: 2024 $4,243 2025 3,701 2026 3,460 2027 2,917 2028 2,595 2029 and thereafter 23,958 Total operating lease payments 40,874 Less: interest 8,847 Present value of operating lease liabilities (1) $32,027 (1) Includes short-term operating lease liabilities of $3.1 million. The following table presents the components of total lease expense and operating cash flows: (Dollars in thousands) Year ended December 31, 2023 2022 2021 Lease Expense: Operating lease expense $4,476 $4,159 $4,015 Variable lease expense 201 104 69 Total lease expense (1) $4,677 $4,263 $4,084 Cash Paid: Cash paid reducing operating lease liabilities $4,275 $4,076 $3,888 (1) Included in net occupancy expenses in the Consolidated Statements of Income.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The following table presents the carrying value of goodwill at the reporting unit (or business segment) level: (Dollars in thousands) December 31, 2023 2022 Commercial Banking Segment $22,591 $22,591 Wealth Management Services Segment 41,318 41,318 Total goodwill $63,909 $63,909 The balance of goodwill in the Commercial Banking segment arose from the acquisition of First Financial Corp. in 2002. The balance of goodwill in the Wealth Management Services segment arose from the 2005 acquisition of Weston and the 2015 acquisition of Halsey. The following table presents the components of intangible assets: (Dollars in thousands) December 31, 2023 2022 Gross carrying amount $20,803 $20,803 Accumulated amortization 17,092 16,249 Net amount $3,711 $4,554 The balance of intangible assets at December 31, 2023 includes wealth management advisory contracts resulting from the 2005 acquisition of Weston and the 2015 acquisition of Halsey. The wealth management advisory contracts resulting from the Weston acquisition are being amortized over a 20-year life using a declining balance method, based on expected attrition for the current customer base derived from historical runoff data. The wealth management advisory contracts resulting from the acquisition of Halsey are being amortized on a straight-line basis over a 15-year life. Amortization expense for the years ended December 31, 2023, 2022, and 2021, amounted to $843 thousand, $860 thousand and $890 thousand, respectively. The following table presents estimated annual amortization expense for intangible assets at December 31, 2023: (Dollars in thousands) Years ending December 31, 2024 $826 2025 702 2026 476 2027 476 2028 476 2029 and thereafter 755

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Corporation’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Corporation’s known or expected cash receipts and its known or expected cash payments, principally to manage the Corporation’s interest rate risk. Additionally, the Corporation enters into interest rate derivatives to accommodate the business requirements of its customers. All derivatives are recognized as either assets or liabilities on the balance sheet and are measured at fair value. Derivative assets are included in other assets and derivative liabilities are included in other liabilities in the Unaudited Consolidated Balance Sheets. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and resulting designation. Interest Rate Risk Management Agreements Interest rate risk management agreements, such as caps, swaps and floors, are used from time to time as part of the Corporation’s interest rate risk management strategy. Interest rate swaps are agreements in which the Corporation and another party agree to exchange interest payments (e.g., fixed-rate for variable-rate payments) computed on a notional principal amount. Interest rate caps and floors represent options purchased by the Corporation to manage the interest rate paid throughout the term of the option contract. The credit risk associated with these transactions is the risk of default by the counterparty. To minimize this risk, the Corporation enters into interest rate agreements only with highly rated counterparties that management believes to be creditworthy. The notional amounts of these agreements do not represent amounts exchanged by the parties and, thus, are not a measure of the potential loss exposure. Cash Flow Hedging Instruments As of December 31, 2023 and 2022, the Corporation had interest rate swap contracts that were designated as cash flow hedges to hedge the interest rate risk associated with short-term borrowings. See Note 13 for additional disclosure on borrowings. Additionally, the Corporation had an interest rate swap contract that was designated as a cash flow hedge to hedge the interest rate risk associated with a pool of variable rate commercial loans. On March 31, 2023, the Corporation terminated this interest rate swap contract and the derivative liability was derecognized. The loss on this interest rate swap included in the AOCL component of shareholders’ equity was updated to its termination date fair value of $26.5 million, or $20.1 million after tax. This loss is being amortized into earnings as a reduction of interest income on a straight-line basis over the remaining life of the original interest rate swap term, or through May 1, 2026. At December 31, 2023, the remaining unamortized balance of the loss included in the AOCL component of shareholders’ equity was $20.0 million, or $14.9 million after tax. The changes in fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income (loss) and subsequently reclassified to earnings when gains or losses are realized. Loan Related Derivative Contracts Interest Rate Derivative Contracts with Customers The Corporation enters into interest rate swap and interest rate cap contracts to help commercial loan borrowers manage their interest rate risk. These interest rate swap contracts allow borrowers to convert variable-rate loan payments to fixed-rate loan payments, while interest rate cap contracts allow borrowers to limit their interest rate exposure in a rising rate environment. When the Corporation enters into an interest rate derivative contract with a commercial loan borrower, it simultaneously enters into a “mirror” interest rate contract with a third party. For interest rate swaps, the third party exchanges the client’s fixed-rate loan payments for variable-rate loan payments. The Corporation‘s credit policies with respect to interest rate contracts with commercial borrowers are similar to those used for loans. The Corporation retains the risk that is associated with the potential failure of counterparties and the risk inherent in originating loans. The interest rate contracts with counterparties are generally subject to bilateral collateralization terms. These derivatives are not designated as hedges and therefore, changes in fair value are recognized in earnings. Risk Participation Agreements The Corporation has entered into risk participation agreements with other banks in commercial loan arrangements. Participating banks guarantee the performance on borrower-related interest rate swap contracts. These derivatives are not designated as hedges and therefore, changes in fair value are recognized in earnings. Under a risk participation-out agreement, a derivative asset, the Corporation participates out a portion of the credit risk associated with the interest rate swap position executed with the commercial borrower for a fee paid to the participating bank. Under a risk participation-in agreement, a derivative liability, the Corporation assumes, or participates in, a portion of the credit risk associated with the interest rate swap position with the commercial borrower for a fee received from the other bank. Mortgage Loan Commitments Interest rate lock commitments are extended to borrowers and relate to the origination of mortgage loans held for sale. To mitigate the interest rate risk and pricing risk associated with rate locks and mortgage loans held for sale, the Corporation enters into forward sale commitments. Forward sale commitments are contracts for delayed delivery or net settlement of the underlying instrument, such as a residential real estate mortgage loan, where the seller agrees to deliver on a specified future date, either a specified instrument at a specified price or yield or the net cash equivalent of an underlying instrument. Both interest rate lock commitments and forward sale commitments are derivative financial instruments, but do not meet criteria for hedge accounting and therefore, the changes in fair value of these commitments are recognized in earnings. The following table presents the notional amounts and fair values of derivative instruments in the Consolidated Balance Sheets: (Dollars in thousands) December 31, 2023 December 31, 2022 Fair Value Fair Value Notional Amounts Derivative Assets Derivative Liabilities Notional Amounts Derivative Assets Derivative Liabilities Derivatives Designated as Cash Flow Hedging Instruments: Interest rate risk management contracts: Interest rate swaps (1) $120,000 $802 $1,119 $320,000 $548 $31,178 Derivatives not Designated as Hedging Instruments: Loan related derivative contracts: Interest rate contracts with customers 938,872 6,594 52,102 935,099 32 68,137 Mirror interest rate contracts with counterparties 938,872 51,859 6,757 935,099 67,797 61 Risk participation agreements 321,055 66 1 282,191 — 2 Mortgage loan commitments: Interest rate lock commitments 20,980 504 1 12,201 144 4 Forward sale commitments 50,117 18 711 23,150 58 150 Gross amounts 59,843 60,691 68,579 99,532 Less: amounts offset (2) 7,877 7,877 23,524 23,524 Derivative balances, net of offset 51,966 52,814 45,055 76,008 Less: collateral pledged (3) — — — 7,716 Net amounts $51,966 $52,814 $45,055 $68,292 (1) The fair value of derivative assets includes accrued interest receivable of $239 thousand and $24 thousand, respectively, at December 31, 2023 and 2022. There was no accrued interest payable included in the fair value of derivative liabilities at December 31, 2023, compared to $856 thousand of accrued interest payable at December 31, 2022. (2) Interest rate risk management contracts and loan related derivative contracts with counterparties are subject to master netting arrangements. (3) Collateral contractually required to be pledged to derivative counterparties is in the form of cash. Washington Trust may need to post additional collateral in the future in proportion to potential increases in unrealized loss positions. The following table presents the effect of derivative instruments in the Consolidated Statements of Changes in Shareholders’ Equity: (Dollars in thousands) Gain (Loss) Recognized in Other Comprehensive Income, Net of Tax Years ended December 31, 2023 2022 2021 Derivatives Designated as Cash Flow Hedging Instruments: Interest rate risk management contracts: Interest rate swaps $7,026 ($18,632) ($2,566) Total $7,026 ($18,632) ($2,566) For derivatives designated as cash flow hedging instruments, see Note 19 for additional disclosure pertaining to the amounts and location of reclassifications from AOCL into earnings. The following table presents the effect of derivative instruments in the Consolidated Statements of Income: (Dollars in thousands) Amount of Gain (Loss) Years ended December 31, Statement of Income Location 2023 2022 2021 Derivatives not Designated as Hedging Instruments: Loan related derivative contracts: Interest rate contracts with customers Loan related derivative income ($1,408) ($92,730) ($27,846) Mirror contracts with counterparties Loan related derivative income 3,211 94,759 31,547 Risk participation agreements Loan related derivative income (413) 727 641 Mortgage loan commitments: Interest rate lock commitments Mortgage banking revenues 363 (1,116) (5,947) Forward sale commitments Mortgage banking revenues 61 4,530 5,383 Total $1,814 $6,170 $3,778

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Corporation uses fair value measurements to record fair value adjustments on certain assets and liabilities and to determine fair value disclosures. Items recorded at fair value on a recurring basis include securities available for sale, mortgage loans held for sale and derivatives. Additionally, from time to time, we may be required to record other assets at fair value on a nonrecurring basis, such as collateral dependent individually analyzed loans. Fair value is a market-based measurement, not an entity-specific measurement. Fair value measurements are determined based on the assumptions the market participants would use in pricing the asset or liability. In addition, GAAP specifies a hierarchy of valuation techniques based on whether the types of valuation information, or “inputs”, are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Corporation’s market assumptions. These two types of inputs have created the following fair value hierarchy: • Level 1 – Quoted prices for identical assets or liabilities in active markets. • Level 2 – Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. • Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable in the markets and which reflect the Corporation’s market assumptions. Fair Value Option Election GAAP allows for the irrevocable option to elect fair value accounting for the initial and subsequent measurement for certain financial assets and liabilities on a contract-by-contract basis. The Corporation has elected the fair value option for mortgage loans held for sale to better match changes in fair value of the loans with changes in the fair value of the forward sale commitment contracts used to economically hedge them. The following table presents a summary of mortgage loans held for sale accounted for under the fair value option: (Dollars in thousands) December 31, 2023 2022 Aggregate fair value $20,077 $8,987 Aggregate principal balance 19,480 8,860 Difference between fair value and principal balance $597 $127 Changes in fair value of mortgage loans held for sale accounted for under the fair value option election are included in mortgage banking revenues in the Consolidated Statements of Income. Changes in fair value amounted to an increase in mortgage banking revenues of $470 thousand in 2023, compared to a decrease in mortgage banking revenues of $868 thousand in 2022. There were no mortgage loans held for sale 90 days or more past due as of December 31, 2023 and 2022. Valuation Techniques Debt Securities Available for sale debt securities are recorded at fair value on a recurring basis. When available, the Corporation uses quoted market prices to determine the fair value of debt securities; such items are classified as Level 1. There were no Level 1 debt securities held at December 31, 2023 and 2022. Level 2 debt securities are traded less frequently than exchange-traded instruments. The fair value of these securities is determined using matrix pricing with inputs that are observable in the market or can be derived principally from or corroborated by observable market data. This category includes obligations of U.S. government-sponsored enterprises, including mortgage-backed securities, individual name issuer trust preferred debt securities and corporate bonds. Debt securities not actively traded whose fair value is determined through the use of cash flows utilizing inputs that are unobservable are classified as Level 3. There were no Level 3 debt securities held at December 31, 2023 and 2022. Mortgage Loans Held for Sale The Corporation has elected the fair value option for mortgage loans held for sale. The fair value is estimated based on current market prices for similar loans in the secondary market and therefore are classified as Level 2 assets. Collateral Dependent Individually Analyzed Loans Collateral dependent individually analyzed loans are valued based upon the lower of amortized cost or fair value. Fair value is determined based on the appraised value of the underlying collateral. Such collateral primarily consists of real estate and, to a lesser extent, other business assets. For collateral dependent loans that are expected to be repaid substantially through the sale of the collateral, management adjusts the fair value for estimated costs to sell. Management may also adjust appraised values to reflect estimated market value declines or apply other discounts to appraised values resulting from its knowledge of the collateral. Internal valuations may be utilized to determine the fair value of other business assets. Collateral dependent individually analyzed loans are categorized as Level 3. Derivatives Interest rate derivative contracts are traded in over-the-counter markets where quoted market prices are not readily available. Fair value measurements are determined using independent valuation software, which utilizes the present value of future cash flows discounted using market observable inputs such as forward rate assumptions. The Corporation evaluates the credit risk of its counterparties, as well as that of the Corporation. Accordingly, factors such as the likelihood of default by the Corporation and its counterparties, its net exposures and remaining contractual life are considered in determining if any fair value adjustments related to credit risk are required. Counterparty exposure is evaluated by netting positions that are subject to master netting agreements, as well as considering the amount of collateral securing the position, if any. The Corporation has determined that the majority of the inputs used to value its derivative positions fall within Level 2 of the fair value hierarchy. However, the credit valuation adjustments utilize Level 3 inputs. As of December 31, 2023 and 2022, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation. As a result, the Corporation has classified its derivative valuations in their entirety as Level 2. Fair value measurements of forward loan commitments (interest rate lock commitments and forward sale commitments) are primarily based on current market prices for similar assets in the secondary market for mortgage loans and therefore are classified as Level 2 assets. The fair value of interest rate lock commitments is also dependent on the ultimate closing of the loans. Pull-through rates are based on the Corporation’s historical data and reflect the Corporation’s best estimate of the likelihood that a commitment will result in a closed loan. Although the pull-through rates are Level 3 inputs, the Corporation has assessed the significance of the impact of pull-through rates on the overall valuation of its interest rate lock commitments and has determined that they are not significant to the overall valuation. As a result, the Corporation has classified its interest rate lock commitments as Level 2. Items Recorded at Fair Value on a Recurring Basis The following tables present the balances of assets and liabilities reported at fair value on a recurring basis: (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2023 Assets: Available for sale debt securities: Obligations of U.S. government-sponsored enterprises $225,742 $— $225,742 $— Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 753,956 — 753,956 — Individual name issuer trust preferred debt securities 8,793 — 8,793 — Corporate bonds 11,889 — 11,889 — Mortgage loans held for sale 20,077 — 20,077 — Derivative assets 51,966 — 51,966 — Total assets at fair value on a recurring basis $1,072,423 $— $1,072,423 $— Liabilities: Derivative liabilities $ 52,814 $ — $ 52,814 $ — Total liabilities at fair value on a recurring basis $52,814 $— $52,814 $— (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2022 Assets: Available for sale debt securities: Obligations of U.S. government-sponsored enterprises $199,582 $— $199,582 $— Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 774,102 — 774,102 — Individual name issuer trust preferred debt securities 8,760 — 8,760 — Corporate bonds 11,484 — 11,484 — Mortgage loans held for sale 8,987 — 8,987 — Derivative assets 45,055 — 45,055 — Total assets at fair value on a recurring basis $1,047,970 $— $1,047,970 $— Liabilities: Derivative liabilities $ 76,008 $ — $ 76,008 $ — Total liabilities at fair value on a recurring basis $76,008 $— $76,008 $— Items Recorded at Fair Value on a Nonrecurring Basis The following table presents the carrying value of assets held at December 31, 2023, which were written down to fair value during the twelve months ended December 31, 2023: (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Collateral dependent individually analyzed loans $8,050 $— $— $8,050 Loan servicing rights 8,512 — — 8,512 Total assets at fair value on a nonrecurring basis $16,562 $— $— $16,562 There were no assets written down to fair value during the twelve months ended December 31, 2022. The following table presents valuation techniques and unobservable inputs for assets measured at fair value on a nonrecurring basis for which the Corporation has utilized Level 3 inputs to determine fair value: (Dollars in thousands) Fair Value Valuation Technique Unobservable Input Inputs Utilized December 31, 2023 Collateral dependent individually analyzed loans $8,050 Appraisals of collateral Discount for costs to sell 0% Appraisal adjustments 0% Loan servicing rights 8,512 Discounted Cash Flow Discount Rate 10% - 14% (10%) Prepayment rates 6% - 53% (9%) Items for which Fair Value is Only Disclosed The estimated fair values and related carrying amounts for financial instruments for which fair value is only disclosed are presented in the tables below: (Dollars in thousands) Carrying Amount Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2023 Financial Assets: Cash and cash equivalents $90,184 $90,184 $90,184 $— $— Loans, net of allowance for credit losses on loans 5,606,649 5,365,396 — — 5,365,396 FHLB stock 51,893 51,893 — 51,893 — Investment in BOLI 103,736 103,736 — 103,736 — Financial Liabilities: Non-maturity deposits $3,559,923 $3,559,923 $— $3,559,923 $— Time deposits 1,788,237 1,773,643 — 1,773,643 — FHLB advances 1,190,000 1,192,262 — 1,192,262 — Junior subordinated debentures 22,681 19,228 — 19,228 — (Dollars in thousands) Carrying Amount Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2022 Financial Assets: Cash and cash equivalents $118,422 $118,422 $118,422 $— $— Loans, net of allowance for credit losses on loans 5,072,112 4,929,449 — — 4,929,449 FHLB stock 43,463 43,463 — 43,463 — Investment in BOLI 102,182 102,182 — 102,182 — Financial Liabilities: Non-maturity deposits $3,896,080 $3,896,080 $— $3,896,080 $— Time deposits 1,122,882 1,137,219 — 1,137,219 — FHLB advances 980,000 978,590 — 978,590 — Junior subordinated debentures 22,681 18,963 — 18,963 —

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The following table presents the components of income tax expense (benefit): (Dollars in thousands) Years ended December 31, 2023 2022 2021 Current Tax Expense: Federal $10,494 $16,127 $17,032 State 1,501 2,202 2,130 Total current tax expense 11,995 18,329 19,162 Deferred Tax Expense (Benefit): Federal 412 1,012 1,822 State (4,102) 148 333 Total deferred tax expense (benefit) (3,690) 1,160 2,155 Total income tax expense $8,305 $19,489 $21,317 Total income tax expense varies from the amount determined by applying the Federal income tax rate to income before income taxes. The following table presents the reasons for the differences: Years ended December 31, 2023 2022 2021 (Dollars in thousands) Amount Rate Amount Rate Amount Rate Tax expense at Federal statutory rate $11,861 21.0 % $19,146 21.0 % $20,619 21.0 % Increase (decrease) in taxes resulting from: State income tax expense, net of federal tax benefit 1,107 2.0 1,856 2.1 1,943 2.0 Share-based compensation 29 0.1 (68) (0.1) (159) (0.2) Tax-exempt income, net (543) (1.0) (721) (0.8) (772) (0.8) Investments in low-income housing tax credits and other benefits, net (357) (0.6) (261) (0.3) (117) (0.1) BOLI (732) (1.3) (544) (0.6) (614) (0.6) State valuation allowance adjustment, net 2,153 3.8 — — — — State net operating loss carryforward, net of federal tax (1,312) (2.3) — — — — Adjustment to net deferred tax assets for enacted changes in state tax law (4,093) (7.2) — — — — Other 192 0.2 81 0.1 417 0.4 Total income tax expense $8,305 14.7 % $19,489 21.4 % $21,317 21.7 % On October 6, 2023 the Commonwealth of Massachusetts enacted into law a tax bill, which made changes to how corporations calculate their Massachusetts taxable income. The law enacted a single sales factor apportionment formula and prescribed a method for sourcing of income from investment and trading activities, effective on January 1, 2025. Upon the enactment, the Corporation was required to revalue its deferred tax assets and liabilities reflecting the updated apportionment formula and income sourcing method. In addition, as further described below, the Corporation determined a portion of state deferred tax assets did not meet the more-likely-than-not realization threshold and a valuation allowance was required. As a result, the Corporation increased net deferred tax assets by $3.3 million with a corresponding decrease to income tax expense in 2023. The following table presents the approximate tax effects of temporary differences that give rise to deferred tax assets and deferred tax liabilities: (Dollars in thousands) December 31, 2023 2022 Deferred Tax Assets: Net unrealized losses on available for sale debt securities $38,823 $41,379 Allowance for credit losses on loans 10,470 9,127 Operating lease liabilities 8,167 7,094 Deferred compensation 5,258 4,486 Cash flow hedges 5,250 7,151 Deferred loan origination fees 2,356 2,106 Share-based compensation 1,806 1,884 Defined benefit pension obligations 1,425 — State net operating loss carryforwards 1,312 — Other 2,094 1,809 Deferred tax assets 76,961 75,036 Less: valuation allowance (2,153) — Deferred tax assets, net of valuation allowance 74,808 75,036 Deferred Tax Liabilities: Operating lease ROU assets (7,488) (6,518) Deferred loan origination costs (7,365) (6,394) Loan servicing rights (2,171) (2,163) Depreciation of premises and equipment (1,897) (1,494) Amortization of intangibles (946) (1,093) Defined benefit pension obligations — (333) Other (1,133) (669) Deferred tax liabilities (21,000) (18,664) Net deferred tax asset $53,808 $56,372 The Corporation’s net deferred tax asset is included in other assets in the Consolidated Balance Sheets. Net deferred tax assets decreased by $2.6 million during 2023, including the establishment of a valuation allowance of $2.2 million. Deferred tax assets are to be reduced by a valuation allowance if, based on the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets are realized primarily through future reversals of existing taxable temporary differences or by offsetting projected future taxable income. Management determined that no valuation allowance was required at December 31, 2022. The valuation allowance amounted to $2.2 million at December 31, 2023 and reflected management’s estimate regarding the realizability of a portion of the Corporation’s state deferred tax assets, largely associated with state net operating loss carryforwards. These operating loss carryforwards have various expirations beginning in 2028 through 2042, the majority of which are subject to annual usage limitations. Management’s assessment considered the Corporation’s forecasted future taxable income, existing taxable temporary differences along with tax planning strategies. Management believes deferred tax assets, net of the valuation allowance, are more-likely-than-not to be realized. The Corporation had no unrecognized tax benefits as of December 31, 2023 and 2022. The Corporation files income tax returns in the U.S. federal jurisdiction and various state jurisdictions. Generally, the Corporation is no longer subject to U.S. federal income and state tax examinations by tax authorities for years before 2020.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2023
Deposits [Abstract]
Deposits	Deposits The following table presents a summary of deposits: (Dollars in thousands) December 31, 2023 2022 Noninterest-bearing: Noninterest-bearing demand deposits $693,746 $858,953 Interest-bearing: Interest-bearing demand deposits (1) 504,959 333,197 NOW accounts 767,036 871,875 Money market accounts 1,096,959 1,255,805 Savings accounts 497,223 576,250 Time deposits (2) 1,788,237 1,122,882 Total interest-bearing deposits $4,654,414 $4,160,009 Total deposits $5,348,160 $5,018,962 (1) Includes wholesale brokered demand deposit balances of $0 and $31.2 million, respectively, as of December 31, 2023 and 2022. (2) Includes wholesale brokered time deposit balances of $654.1 million and $327.0 million, respectively, as of December 31, 2023 and 2022. The following table presents scheduled maturities of time certificates of deposit: (Dollars in thousands) Scheduled Maturity Weighted Average Rate Years ending December 31: 2024 $1,549,955 4.63 % 2025 149,532 3.38 2026 32,528 2.21 2027 30,585 3.16 2028 25,637 3.61 2029 and thereafter — — Balance at December 31, 2023 $1,788,237 4.44 % Time certificates of deposit in denominations of $250 thousand or more totaled $271.2 million and $200.9 million, respectively, at December 31, 2023 and 2022.

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Borrowings	Borrowings Federal Home Loan Bank Advances Advances payable to the FHLB amounted to $1.2 billion and $980.0 million, respectively, at December 31, 2023 and 2022. At December 31, 2023, the Corporation has interest rate swaps with a notional amount of $120.0 million that were designated as cash flow hedges to hedge the interest rate risk associated with short-term FHLB advances. See Note 9 for additional disclosure on derivatives. As of December 31, 2023 and 2022, the Bank had access to a $40.0 million unused line of credit with the FHLB. Additionally, the Bank had a standby letter of credit with the FHLB of $65.0 million and $215.0 million, respectively, at December 31, 2023 and December 31, 2022. This standby letter of credit collateralizes an institutional deposit. The Bank had remaining available borrowing capacity of $1.1 billion and $668.3 million, respectively, with the FHLB at December 31, 2023 and 2022. The Bank pledges certain qualified investment securities and loans as collateral to the FHLB. The following table presents maturities and weighted average interest rates on FHLB advances outstanding as of December 31, 2023: (Dollars in thousands) Scheduled Weighted 2024 $550,000 5.30 % 2025 305,000 4.94 2026 165,000 4.54 2027 45,000 4.24 2028 125,000 4.15 2029 and thereafter — — Total $1,190,000 4.94 % Junior Subordinated Debentures Junior subordinated debentures amounted to $22.7 million at December 31, 2023 and 2022. The Bancorp sponsored the creation of Trust I and Trust II, Delaware statutory trusts created for the sole purpose of issuing trust preferred securities and investing the proceeds in junior subordinated debentures of the Bancorp. The Bancorp is the owner of all of the common securities of the trusts. In accordance with GAAP, the trusts are treated as unconsolidated subsidiaries. The $8.3 million of junior subordinated debentures associated with Trust I mature on September 15, 2035 and bear interest at a rate equal to the three-month SOFR rate plus 1.71%, or 7.10% as of December 31, 2023. Prior to the cessation of LIBOR on June 30, 2023, the Trust I junior subordinated debentures bore interest at a rate equal to the three-month LIBOR rate plus 1.45%, which was 6.22% at December 31, 2022. The $14.4 million of junior subordinated debentures associated with Trust II mature on November 23, 2035 and bear interest at a rate equal to the three-month SOFR rate plus 1.71%, or 7.09% as of December 31, 2023. Prior to the cessation of LIBOR, the Trust II junior subordinated debentures bore interest at a rate equal to the three-month LIBOR rate plus 1.45%, which was 6.14% at December 31, 2022. The debentures may be redeemed at par at the Bancorp’s option, subject to the approval of the applicable banking regulator to the extent required under applicable guidelines or policies. See Note 14 for additional discussion of the regulatory capital treatment of trust preferred securities.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Stock Repurchase Program On December 28, 2023, the Corporation announced that its Board of Directors adopted the 2024 Repurchase Program, which authorizes the repurchase of up to 850,000 shares, or approximately 5%, of the Corporation’s outstanding common stock. This authority may be exercised from time to time and in such amounts as market conditions warrant, and subject to regulatory considerations. The timing and actual numbers of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions, and other corporate liquidity requirements and priorities. The 2024 Repurchase Program commenced on January 1, 2024 and expires on December 31, 2024 and may be modified, suspended, or discontinued at any time. The 2023 Repurchase Program expired on December 31, 2023. For the year ended December 31, 2023, the Corporation repurchased 200,000 shares at an average price of $43.70 and a total cost of $8.8 million, under its 2023 Repurchase Program. The total cost included $73 thousand of excise tax attributable to shares that were repurchased in 2023. Dividends The primary source of liquidity for the Bancorp is dividends received from the Bank. The Bancorp and the Bank are regulated entities and their abilities to pay dividends are subject to regulatory review and restriction. Certain regulatory and statutory restrictions exist regarding dividends, loans, and advances from the Bank to the Bancorp. Generally, the Bank has the ability to pay dividends to the Bancorp subject to minimum regulatory capital requirements. The FDIC and the FRBB have the authority to use their enforcement powers to prohibit a bank or bank holding company, respectively, from paying dividends if, in their opinion, the payment of dividends would constitute an unsafe or unsound practice. Payment of dividends by a bank is also restricted pursuant to various state regulatory limitations. Dividends paid by the Bank to the Bancorp amounted to $38.8 million and $53.2 million, respectively, for the years ended December 31, 2023 and 2022. Regulatory Capital Requirements The Bancorp and the Bank are subject to various regulatory capital requirements administered by the FRBB and the FDIC, respectively. Regulatory authorities can initiate certain mandatory actions if the Bancorp or the Bank fail to meet minimum capital requirements, which could have a direct material effect on the Corporation’s financial statements. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. These quantitative measures, to ensure capital adequacy, require minimum amounts and ratios. Capital levels at December 31, 2023 exceeded the regulatory minimum levels to be considered “well capitalized.” The following table presents the Corporation’s and the Bank’s actual capital amounts and ratios, as well as the corresponding minimum and well capitalized regulatory amounts and ratios that were in effect during the respective periods: (Dollars in thousands) Actual For Capital Adequacy To Be “Well Capitalized” Under Prompt Corrective Action Regulations Amount Ratio Amount Ratio Amount Ratio December 31, 2023 Total Capital (to Risk-Weighted Assets): Corporation $611,220 11.58 % $422,259 8.00 % N/A N/A Bank 605,289 11.47 422,131 8.00 $527,663 10.00 % Tier 1 Capital (to Risk-Weighted Assets): Corporation 572,960 10.86 316,694 6.00 N/A N/A Bank 567,029 10.75 316,598 6.00 422,131 8.00 Common Equity Tier 1 Capital (to Risk-Weighted Assets): Corporation 550,964 10.44 237,521 4.50 N/A N/A Bank 567,029 10.75 237,449 4.50 342,981 6.50 Tier 1 Capital (to Average Assets): (1) Corporation 572,960 7.80 293,837 4.00 N/A N/A Bank 567,029 7.72 293,742 4.00 367,177 5.00 December 31, 2022 Total Capital (to Risk-Weighted Assets): Corporation 605,005 12.37 391,363 8.00 N/A N/A Bank 588,090 12.02 391,260 8.00 489,074 10.00 Tier 1 Capital (to Risk-Weighted Assets): Corporation 571,794 11.69 293,522 6.00 N/A N/A Bank 554,879 11.35 293,445 6.00 391,260 8.00 Common Equity Tier 1 Capital (to Risk-Weighted Assets): Corporation 549,798 11.24 220,142 4.50 N/A N/A Bank 554,879 11.35 220,083 4.50 317,898 6.50 Tier 1 Capital (to Average Assets): (1) Corporation 571,794 8.65 264,295 4.00 N/A N/A Bank 554,879 8.40 264,177 4.00 330,222 5.00 (1) Leverage ratio. In addition to the minimum regulatory capital required for capital adequacy outlined in the table above, the Corporation and the Bank are required to maintain a minimum capital conversation buffer, in the form of common equity, of 2.50% resulting in a requirement for the Corporation and the Bank to effectively maintain total capital, Tier 1 capital and common equity Tier 1 capital ratios of 10.50%, 8.50% and 7.00%, respectively. The Corporation and the Bank must maintain the capital conservation buffer to avoid restrictions on the ability to pay dividends and discretionary bonuses. The Corporation’s and the Bank’s capital levels exceeded the minimum regulatory capital requirements plus the capital conservation buffer at December 31, 2023 and 2022. The Bancorp owns the common stock of two capital trusts, which have issued trust preferred securities. In accordance with GAAP, the capital trusts are treated as unconsolidated subsidiaries. At both December 31, 2023 and 2022, $22.0 million in trust preferred securities were included in the Tier 1 capital of the Corporation for regulatory capital reporting purposes pursuant to the capital adequacy guidelines of the Federal Reserve. In accordance with regulatory capital rules, the Corporation elected the option to delay the estimated impact of ASC 326 on its regulatory capital over a two-year deferral and subsequent three-year transition period ending December 31, 2024. As a result, capital ratios exclude the full impact of the increased ACL on loans and unfunded loan commitments attributed to the adoption of ASC 326, adjusted for an approximation of the after-tax provision for credit losses attributable to ASC 326 relative to the incurred loss methodology during the two-year deferral period. The cumulative difference at the end of the deferral period is being phased-in to regulatory capital over the three-year transition period, which began January 1, 2022.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The following table summarizes total revenues as presented in the Consolidated Statements of Income and the related amounts that are from contracts with customers within the scope of ASC 606. As shown below, a substantial portion of our revenues are specifically excluded from the scope of ASC 606. Years ended December 31, 2023 2022 2021 (Dollars in thousands) Revenue (1) ASC 606 Revenue (2) Revenue (1) ASC 606 Revenue (2) Revenue (1) ASC 606 Revenue (2) Net interest income $137,098 $— $155,990 $— $141,435 $— Noninterest income: Wealth management revenues 35,540 35,540 38,746 38,746 41,282 41,282 Mortgage banking revenues 6,660 — 8,733 — 28,626 — Card interchange fees 4,921 4,921 4,996 4,996 4,996 4,996 Service charges on deposit accounts 2,806 2,806 3,192 3,192 2,683 2,683 Loan related derivative income 1,390 — 2,756 — 4,342 — Income from bank-owned life insurance 3,488 — 2,591 — 2,925 — Other income 1,335 1,226 1,588 1,219 2,540 2,148 Total noninterest income 56,140 44,493 62,602 48,153 87,394 51,109 Total revenues $193,238 $44,493 $218,592 $48,153 $228,829 $51,109 (1) As reported in the Consolidated Statements of Income. (2) Revenue from contracts with customers in scope of ASC 606. The following table presents revenue from contracts with customers segregated by revenue recognition timing: (Dollars in thousands) Years ended December 31, 2023 2022 2021 Revenue recognized at a point in time: Card interchange fees $4,921 $4,996 $4,996 Service charges on deposit accounts 1,842 2,512 2,136 Other income 983 967 1,931 Revenue recognized over time: Wealth management revenues 35,540 38,746 41,282 Service charges on deposit accounts 964 680 547 Other income 243 252 217 Total revenues from contracts with customers in scope of ASC 606 $44,493 $48,153 $51,109 Receivables for revenue from contracts with customers consist primarily of amounts due for wealth management services performed for which the Corporation’s performance obligations have been fully satisfied. Receivables amounted to $5.5 million and $5.1 million, respectively, at December 31, 2023 and 2022 and were included in other assets in the Consolidated Balance Sheets. Deferred revenues, which are considered contract liabilities under ASC 606, represent advance consideration received from customers for which the Corporation has a remaining performance obligation to fulfill. Contract liabilities are recognized as revenue over the life of the contract as the performance obligations are satisfied. The balances of contract liabilities were insignificant at both December 31, 2023 and 2022 and were included in other liabilities in the Consolidated Balance Sheets. For commissions and incentives that are in scope of ASC 606, such as those paid to employees in our wealth management services and commercial banking segments in order to obtain customer contracts, contract cost assets are established. The contract cost assets are capitalized and amortized over the estimated useful life that the asset is expected to generate benefits. The carrying value of contract cost assets amounted to $2.0 million and $2.1 million, respectively, at December 31, 2023 and 2022 and were included in other assets in the Consolidated Balance Sheets. The amortization of contract cost assets is recorded within salaries and employee benefits expense Consolidated Statements of Income.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Employee Benefits	Employee Benefits Defined Benefit Pension Plans Washington Trust maintains a qualified pension plan for the benefit of certain eligible employees who were hired prior to October 1, 2007. Washington Trust also has non-qualified retirement plans to provide supplemental retirement benefits to certain employees, as defined in the plans. These defined benefit pension plans were previously amended to freeze benefit accruals after a 10-year transition period, which ended in December 2023. In the fourth quarter of 2023, the Corporation’s Board of Directors approved a resolution to terminate the qualified pension plan and participants were notified of the termination. Work on the qualified pension plan termination process has commenced and the qualified pension plan’s assets are expected to be distributed in 2025, pending completion of applicable regulatory approvals, including receipt of a determination letter from the Internal Revenue Service. The qualified pension plan liability is expected to be settled in 2025 through a combination of lump sum payments to participants and purchase of a group annuity contract from a highly-rated insurance company. Upon settlement in 2025, the Corporation expects to recognize a pre-tax pension settlement charge that will include a non-cash charge for the recognition of all pre-tax actuarial losses accumulated in AOCL at that time. The actual amount of the settlement charge will depend on various factors, including interest rates, plan asset returns, the lump sum election rate and annuity pricing. The qualified pension plan is funded on a current basis, in compliance with the requirements of ERISA. Pension benefit costs and benefit obligations incorporate various actuarial and other assumptions, including discount rates, mortality, rates of return on plan assets and compensation increases. Washington Trust evaluates these assumptions annually. The actuarial assumptions as of December 31, 2023 included considerations for the termination of the qualified pension plan. The following table presents the plans’ projected benefit obligations, fair value of plan assets and funded (unfunded) status: (Dollars in thousands) Qualified Non-Qualified At December 31, 2023 2022 2023 2022 Change in Benefit Obligation: Benefit obligation at beginning of period $66,656 $89,408 $13,562 $17,717 Service cost 1,403 2,062 156 218 Interest cost 3,540 2,368 706 423 Actuarial (gain) loss 8,522 (23,658) (279) (3,880) Benefits paid (4,570) (3,422) (950) (916) Administrative expenses (267) (102) — — Benefit obligation at end of period 75,284 66,656 13,195 13,562 Change in Plan Assets: Fair value of plan assets at beginning of period 81,553 103,047 — — Actual return on plan assets 6,121 (17,970) — — Employer contributions — — 950 916 Benefits paid (4,570) (3,422) (950) (916) Administrative expenses (267) (102) — — Fair value of plan assets at end of period 82,837 81,553 — — Funded (unfunded) status at end of period (1) $7,553 $14,897 ($13,195) ($13,562) (1) Funded status of the qualified pension plan is included in other assets in the Consolidated Balance Sheets. Unfunded status of the non-qualified retirement plans is included in other liabilities in the Consolidated Balance Sheets. The non-qualified retirement plans provide for the designation of assets in rabbi trusts. Securities available for sale and other short-term investments designated for this purpose, with the carrying value of $13.6 million and $14.0 million are included in the Consolidated Balance Sheets at December 31, 2023 and 2022, respectively. The following table presents the amounts included in AOCL related to the qualified pension plan and non-qualified retirement plans: (Dollars in thousands) Qualified Non-Qualified At December 31, 2023 2022 2023 2022 Net actuarial loss included in AOCL, pre-tax $8,837 $1,846 $2,939 $3,455 The accumulated benefit obligation for the qualified pension plan was $75.3 million and $64.8 million, respectively, at December 31, 2023 and 2022. The accumulated benefit obligation for the non-qualified retirement plans amounted to $13.2 million and $13.1 million, respectively, at December 31, 2023 and 2022. The following table presents components of net periodic benefit cost and other amounts recognized in other comprehensive income (loss), on a pre-tax basis: (Dollars in thousands) Qualified Non-Qualified Years ended December 31, 2023 2022 2021 2023 2022 2021 Net Periodic Benefit Cost: Service cost (1) $1,403 $2,062 $2,369 $156 $218 $208 Interest cost (2) 3,540 2,368 2,004 706 423 337 Expected return on plan assets (2) (4,590) (4,634) (4,815) — — — Recognized net actuarial loss (2) — 1,020 2,121 237 692 723 Net periodic benefit cost 353 816 1,679 1,099 1,333 1,268 Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (on a pre-tax basis): Net loss (gain) 6,991 (2,074) (8,132) (516) (4,572) (621) Recognized in other comprehensive income (loss) 6,991 (2,074) (8,132) (516) (4,572) (621) Total recognized in net periodic benefit cost and other comprehensive income (loss) $7,344 ($1,258) ($6,453) $583 ($3,239) $647 (1) Included in salaries and employee benefits expense in the Consolidated Statements of Income. (2) Included in other expenses in the Consolidated Statements of Income. Assumptions The following table presents the measurement date and weighted-average assumptions used to determine benefit obligations at December 31, 2023 and 2022: Qualified Non-Qualified Retirement Plans 2023 2022 2023 2022 Measurement date Dec 31, 2023 Dec 31, 2022 Dec 31, 2023 Dec 31, 2022 Discount rate 4.51 % 5.54 % 5.10 % 5.50 % Rate of compensation increase 0.50 5.00 N/A 5.00 The following table presents the measurement date and weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31, 2023, 2022 and 2021: Qualified Pension Plan Non-Qualified Retirement Plans 2023 2022 2021 2023 2022 2021 Measurement date Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Equivalent single discount rate for benefit obligations 5.54 % 3.00 % 2.71 % 5.50 % 2.89 % 2.51 % Equivalent single discount rate for service cost 5.60 3.11 2.86 5.61 3.16 2.94 Equivalent single discount rate for interest cost 5.43 2.67 2.16 5.40 2.48 1.97 Expected long-term return on plan assets 5.25 5.25 5.75 N/A N/A N/A Rate of compensation increase 5.00 3.75 3.75 5.00 3.75 3.75 The expected long-term rate of return on plan assets is based on what the Corporation believes is realistically achievable based on the types of assets held by the plan and the plan’s investment practices. The assumption is updated annually, taking into account the asset allocation, historical asset return trends on the types of assets held and the current and expected economic conditions. Decreases in the long-term rate of return assumption on plan assets increase pension costs and, in general, may increase the requirement to make funding contributions to the plans. Increases in the long-term rate of return on plan assets have the opposite effect. The discount rate assumption for defined benefit pension plans is reset on the measurement date. Discount rates are selected for each plan by matching expected future benefit payments stream to a yield curve based on a selection of high-quality fixed-income debt securities. Decreases in discount rates increase the present value of pension obligations and increase our pension costs, while increases in discount rates have the opposite effect. The "spot rate approach" was utilized in the calculation of interest and service cost. The spot rate approach applies separate discount rates for each projected benefit payment in the calculation of interest and service cost. This approach provides a more precise measurement of service and interest cost by improving the correlation between projected benefit cash flows and their corresponding spot rates. Plan Assets The following tables present the fair values of the qualified pension plan’s assets: (Dollars in thousands) Fair Value Measurements Using Fair Value December 31, 2023 Level 1 Level 2 Level 3 Assets: Cash and cash equivalents $16,820 $— $— $16,820 Obligations of U.S. government-sponsored enterprises — 58,147 — 58,147 Obligations of states and political subdivisions — 1,459 — 1,459 Corporate bonds — 1,974 — 1,974 Mutual funds 4,437 — — 4,437 Total plan assets $21,257 $61,580 $— $82,837 (Dollars in thousands) Fair Value Measurements Using Fair Value December 31, 2022 Level 1 Level 2 Level 3 Assets: Cash and cash equivalents $8,438 $— $— $8,438 Obligations of U.S. government-sponsored enterprises — 42,601 — 42,601 Obligations of states and political subdivisions — 1,728 — 1,728 Corporate bonds — 4,854 — 4,854 Mutual funds 23,932 — — 23,932 Total plan assets $32,370 $49,183 $— $81,553 The qualified pension plan uses fair value measurements to record fair value adjustments to the securities held in its investment portfolio. When available, the qualified pension plan uses quoted market prices to determine the fair value of securities; such items are classified as Level 1. This category includes cash and cash equivalents, as well as exchange-traded mutual funds. Level 2 securities in the qualified pension plan include debt securities with quoted prices, which are traded less frequently than exchange-traded instruments, whose values are determined using matrix pricing with inputs that are observable in the market or can be derived principally from or corroborated by observable market data. This category includes obligations of U.S. government-sponsored enterprises, obligations of states and political subdivisions and corporate bonds. In certain cases where there is limited activity or less transparency around inputs to the valuation, securities may be classified as Level 3. As of December 31, 2023 and 2022, the qualified pension plan did not have any securities in the Level 3 category. The following table presents the asset allocations of the qualified pension plan, by asset category: December 31, 2023 2022 Asset Category: Cash and cash equivalents 20.3 % 10.3 % Fixed income securities (1) 74.3 60.3 Mutual funds 5.4 29.4 Total 100.0 % 100.0 % (1) Includes obligations of U.S. government agencies and U.S. government-sponsored enterprises, obligations of states and political subdivisions and corporate bonds. The assets of the qualified defined benefit pension plan trust are managed to ensure that all present and future benefit obligations are met as they come due. It seeks to achieve this goal while trying to mitigate volatility in plan funded status, contributions and expense by aligning the characteristics of the plan assets to that of the plan liabilities. The qualified pension plan is considered well-funded and benefit accruals have been frozen at December 31, 2023. In addition, as noted above, the qualified pension plan’s termination has commenced in 2023. Our investment approach takes these factors into consideration, and as such we have increased our allocation to lower-risk fixed income securities, while simultaneously reducing our allocation to higher-risk equity securities. Cash inflow is typically composed of investment income from portfolio holdings and employer contributions, while cash outflow is for the purpose of paying plan benefits and certain plan expenses. As early as possible each year, the trustee is advised of the projected schedule of employer contributions and estimations of benefit payments. Cash Flows Contributions The Code permits flexibility in plan contributions so that normally a range of contributions is possible. The Corporation does not expect to make contributions to the qualified pension plan in the future due to the plan’s termination that is expected to be completed in 2025 and the plan’s funded status. In addition, the Corporation expects to contribute $859 thousand in benefit payments to the non-qualified retirement plans in 2024. Estimated Future Benefit Payments The following table presents the benefit payments, which reflect expected future service, as appropriate, expected to be paid: (Dollars in thousands) Qualified Non-Qualified Years ending December 31, 2024 $2,830 $859 2025 (1) 76,626 873 2026 — 918 2027 — 942 2028 — 934 2029 and thereafter — 4,749 (1) The expected benefit payments for the qualified pension plan in 2025 reflects the termination of the plan that is expected to be completed in 2025. 401(k) Plan The Corporation’s 401(k) Plan provides a match up to a maximum of 3% of employee contributions for substantially all employees. In addition, substantially all employees hired after September 30, 2007, who are ineligible for participation in the qualified defined benefit pension plan, receive a non-elective employer contribution of 4% of compensation. Total employer matching contributions under this plan amounted to $3.5 million, $3.2 million and $3.0 million in 2023, 2022 and 2021, respectively. Deferred Compensation Plan The Amended and Restated Nonqualified Deferred Compensation Plan provides supplemental retirement and tax benefits to directors and certain officers. The plan is funded primarily through pre-tax contributions made by the participants. The assets and liabilities of the Deferred Compensation Plan are recorded at fair value in the Consolidated Balance Sheets. The participants in the plan bear the risk of market fluctuations of the underlying assets. The accrued liability related to this plan amounted to $20.6 million and $18.7 million, respectively, at December 31, 2023 and 2022, and is included in other liabilities on the accompanying Consolidated Balance Sheets. The corresponding invested assets are reported in other assets in the Consolidated Balance Sheets.

Share-Based Compensation Arrang

Share-Based Compensation Arrangements	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation Arrangements	Share-Based Compensation Arrangements The Corporation’s equity compensation plans include the 2003 Stock Incentive Plan, the 2013 Stock Option and Incentive Plan and the 2022 Long Term Incentive Plan, which have been approved by the Corporation’s Board of Directors and shareholders. Awards are being granted only from the 2022 Long Term Incentive Plan, as there are no securities available for future grants under the 2003 Stock Incentive Plan or 2013 Stock Option and Incentive Plan. The maximum number of shares of common stock that may be issued under the 2022 Long Term Incentive Plan is 669,966 at December 31, 2023 and is subject to adjustment in accordance with the terms of this plan. The types of permitted equity awards under the 2022 Long Term Incentive Plan include stock options (both incentive and non-qualified options), stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, cash-based awards, and dividend equivalent rights. See Item 12 for additional information regarding the equity compensation plans. Reserved Shares As of December 31, 2023, a total of 1,232,966 common stock shares were reserved for issuance under the 2003 Stock Incentive Plan, 2013 Stock Option and Incentive Plan and 2022 Long Term Incentive Plan. Share-based Compensation Expense The following table presents share-based compensation expense and the related income tax benefits recognized in the Consolidated Statements of Income for stock options, restricted stock units and performance share units: (Dollars in thousands) Years ended December 31, 2023 2022 2021 Share-based compensation expense $2,064 $3,247 $3,316 Related income tax benefits (1) $492 $857 $978 (1) Includes $34 thousand of excess tax expense recognized upon the settlement of share-based compensation awards in 2023, compared to $78 thousand and $182 thousand, respectively, of excess tax benefits in 2022 and 2021. As of December 31, 2023, there was $4.4 million of total unrecognized compensation cost related to share-based compensation arrangements, including stock options, restricted stock units and performance share units granted under the Plans. That cost is expected to be recognized over a weighted average period of 1.8 years. Stock Options The exercise price of each stock option may not be less than the fair market value of the Bancorp’s common stock on the date of grant, and options shall have a term of no more than ten years. Stock options are designated as either non-qualified or incentive stock options. For the years ended 2023, 2022 and 2021, all stock options granted by the Corporation were designated as non-qualified stock options. Washington Trust uses historical data to estimate stock option exercise and employee departure behavior in the option-pricing model. The expected term of options granted was derived from the output of the option valuation model and represents the period of time that options granted are expected to be outstanding. Expected volatility was based on historical volatility of Washington Trust shares. The risk-free rate for periods within the contractual life of the stock option was based on the U.S. Treasury yield curve in effect at the date of grant. The following presents the assumptions used in determining the grant date fair value of the stock option awards granted to certain key employees: 2023 2022 2021 Options granted 49,000 57,700 53,700 Cliff vesting period (years) 3 3 3 Expected term (years) 6.5 6.5 6.5 Expected dividend yield 4.38 % 3.90 % 3.80 % Weighted average expected volatility 33.15 % 31.67 % 31.50 % Weighted average risk-free interest rate 4.85 % 4.15 % 1.41 % Weighted average grant-date fair value $6.71 $12.01 $11.10 The following table presents a summary of stock options outstanding as of and for the year ended December 31, 2023: Number of Stock Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000’s) Options outstanding at beginning of period 371,890 $46.67 Granted 49,000 26.42 Exercised — — Forfeited or expired (11,033) 36.53 Options outstanding at end of period 409,857 $44.52 6.34 $303 Options exercisable at end of period 253,257 $45.09 4.83 $11 The total intrinsic value is the amount by which the fair value of the underlying stock exceeds the exercise price of an option on the exercise date. The following table presents additional information concerning options outstanding and options exercisable at December 31, 2023: Options Outstanding Options Exercisable Exercise Price Ranges Number of Weighted Average Weighted Average Number of Shares Weighted Average $20.01 to $30.00 49,000 9.80 $26.42 — $— $30.01 to $40.00 90,287 5.69 33.21 90,287 33.21 $40.01 to $50.00 133,528 6.47 47.44 77,728 46.68 $50.01 to $60.00 137,042 5.42 55.60 85,242 56.22 Total 409,857 6.34 $44.52 253,257 $45.09 There were no stock options exercised during the year ended December 31, 2023. The total intrinsic value of stock options exercised during the years ended December 31, 2022 and 2021 was $142 thousand and $897 thousand, respectively. Restricted Stock Units In 2023, 2022 and 2021, the Corporation granted to directors and certain key employees 30,862, 21,467 and 19,185 restricted stock units, respectively, with 3-year cliff vesting. The following table presents a summary of restricted stock units as of and for the year ended December 31, 2023: Number of Shares Weighted Average Grant Date Fair Value Beginning of period 65,312 $45.51 Granted 30,862 31.04 Vested (26,711) 37.07 Forfeited (1,289) 48.43 End of period 68,174 $42.21 Performance Share Units The Corporation granted performance share units to certain key employees providing the opportunity to earn shares of common stock over a 3-year performance period. The number of shares to be vested will be contingent upon the Corporation’s attainment of certain performance measures as detailed in the performance share unit award agreements. The following table presents a summary of outstanding performance share units as of December 31, 2023: Grant Date Fair Value per Share Weighted Average Current Performance Assumption Expected Number of Shares Performance share units awarded in: 2023 $47.35 110% 47,520 2022 59.31 100% 27,100 2021 46.15 70% 22,652 Total 97,272 The following table presents a summary of performance share units as of and for the year ended December 31, 2023: Number of Shares Weighted Average Grant Date Fair Value Beginning of period 144,938 $45.41 Granted 47,520 47.35 Vested (48,010) 37.37 Forfeited (1) (47,176) 45.25 End of period 97,272 $50.40 (1) The number of forfeited shares also includes adjustments made to performance measure estimates on outstanding awards that have not yet vested.

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Business Segments	Business Segments The Corporation manages its operations through two reportable business segments, consisting of Commercial Banking and Wealth Management Services. Management uses an allocation methodology to allocate income and expenses to the business lines. Direct activities are assigned to the appropriate business segment to which the activity relates. Indirect activities, such as corporate, technology and other support functions, are allocated to business segments primarily based upon full-time equivalent employee computations. Commercial Banking The Commercial Banking segment includes commercial, residential and consumer lending activities; mortgage banking activities; deposit generation; cash management activities; banking activities, including customer support and the operation of ATMs, telephone banking, internet banking and mobile banking services; as well as investment portfolio and wholesale funding activities. Wealth Management Services The Wealth Management Services segment includes investment management; holistic financial planning services; personal trust and estate services, including services as trustee, personal representative and custodian; settlement of decedents’ estates; and institutional trust services, including custody and fiduciary services. The following tables present the statement of operations and total assets for Washington Trust’s reportable business segments. (Dollars in thousands) Year ended December 31, 2023 Commercial Wealth Consolidated Net interest income $137,061 $37 $137,098 Provision for credit losses 3,200 — 3,200 Net interest income after provision for credit losses 133,861 37 133,898 Noninterest income 20,006 36,134 56,140 Noninterest expenses: Depreciation and amortization expense 3,460 1,388 4,848 Other noninterest expenses 99,506 29,203 128,709 Total noninterest expenses 102,966 30,591 133,557 Income before income taxes 50,901 5,580 56,481 Income tax expense 7,028 1,277 8,305 Net income $43,873 $4,303 $48,176 Total assets at period end $7,146,096 $56,751 $7,202,847 Expenditures for long-lived assets 5,013 35 5,048 (Dollars in thousands) Year ended December 31, 2022 Commercial Wealth Consolidated Net interest income (expense) $156,040 ($50) $155,990 Provision for credit losses (1,300) — (1,300) Net interest income (expense) after provision for credit losses 157,340 (50) 157,290 Noninterest income 23,088 39,514 62,602 Noninterest expenses: Depreciation and amortization expense 2,948 1,377 4,325 Other noninterest expenses 94,025 30,372 124,397 Total noninterest expenses 96,973 31,749 128,722 Income before income taxes 83,455 7,715 91,170 Income tax expense 17,557 1,932 19,489 Net income $65,898 $5,783 $71,681 Total assets at period end $6,585,310 $74,741 $6,660,051 Expenditures for long-lived assets 5,475 664 6,139 (Dollars in thousands) Year ended December 31, 2021 Commercial Wealth Consolidated Net interest income (expense) $141,493 ($58) $141,435 Provision for credit losses (4,822) — (4,822) Net interest income (expense) after provision for credit losses 146,315 (58) 146,257 Noninterest income 44,748 42,646 87,394 Noninterest expenses: Depreciation and amortization expense 2,827 1,474 4,301 Other noninterest expenses 101,029 30,134 131,163 Total noninterest expenses 103,856 31,608 135,464 Income before income taxes 87,207 10,980 98,187 Income tax expense 18,575 2,742 21,317 Net income $68,632 $8,238 $76,870 Total assets at period end $5,776,754 $74,373 $5,851,127 Expenditures for long-lived assets 3,246 244 3,490

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The following tables present the activity in other comprehensive income (loss): (Dollars in thousands) Year ended December 31, 2023 Pre-tax Amounts Income Tax Benefit (Expense) Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities $20,163 ($5,721) $14,442 Cash Flow Hedges: Changes in fair value of cash flow hedges 1,647 (346) 1,301 Net cash flow hedge losses reclassified into earnings (1) 7,563 (1,838) 5,725 Net change in the fair value of cash flow hedges 9,210 (2,184) 7,026 Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment (6,712) 1,712 (5,000) Amortization of net actuarial losses (2) 237 (58) 179 Net change in defined benefit plan obligations (6,475) 1,654 (4,821) Total other comprehensive income $22,898 ($6,251) $16,647 (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $9.2 million reduction in interest and fees on loans and a $1.7 million reduction in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income. (Dollars in thousands) Year ended December 31, 2022 Pre-tax Amounts Income Tax Benefit (Expense) Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities ($163,471) $39,233 ($124,238) Cash Flow Hedges: Changes in fair value of cash flow hedges (27,344) 6,563 (20,781) Net cash flow hedge losses reclassified into earnings (1) 2,828 (679) 2,149 Net change in the fair value of cash flow hedges (24,516) 5,884 (18,632) Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment 4,934 (1,184) 3,750 Amortization of net actuarial losses (2) 1,712 (411) 1,301 Net change in defined benefit plan obligations 6,646 (1,595) 5,051 Total other comprehensive loss ($181,341) $43,522 ($137,819) (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $2.8 million reduction in interest and fees on loans and a $70 thousand increase in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income. (Dollars in thousands) Year ended December 31, 2021 Pre-tax Amounts Income Tax (Expense)Benefit Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities ($21,942) $5,266 ($16,676) Cash Flow Hedges: Changes in fair value of cash flow hedges (3,067) 736 (2,331) Net cash flow hedge gains reclassified into earnings (1) (310) 75 (235) Net change in the fair value of cash flow hedges (3,377) 811 (2,566) Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment 5,908 (1,417) 4,491 Amortization of net actuarial losses (2) 2,844 (683) 2,161 Net change in defined benefit plan obligations 8,752 (2,100) 6,652 Total other comprehensive loss ($16,567) $3,977 ($12,590) (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $1.5 million increase in interest and fees on loans and a $1.1 million increase in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income. The following tables present the changes in AOCI (AOCL) by component, net of tax: (Dollars in thousands) Net Unrealized Losses on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2022 ($131,033) ($22,645) ($4,122) ($157,800) Other comprehensive income (loss) before reclassifications 14,442 1,301 (5,000) 10,743 Amounts reclassified from accumulated other comprehensive income (loss) — 5,725 179 5,904 Net other comprehensive income (loss) 14,442 7,026 (4,821) 16,647 Balance at December 31, 2023 ($116,591) ($15,619) ($8,943) ($141,153) (Dollars in thousands) Net Unrealized Losses on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2021 ($6,795) ($4,013) ($9,173) ($19,981) Other comprehensive (loss) income before reclassifications (124,238) (20,781) 3,750 (141,269) Amounts reclassified from accumulated other comprehensive (loss) income — 2,149 1,301 3,450 Net other comprehensive (loss) income (124,238) (18,632) 5,051 (137,819) Balance at December 31, 2022 ($131,033) ($22,645) ($4,122) ($157,800) (Dollars in thousands) Net Unrealized Gains (Losses)on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2020 $9,881 ($1,447) ($15,825) ($7,391) Other comprehensive (loss) income before reclassifications (16,676) (2,331) 4,491 (14,516) Amounts reclassified from accumulated other comprehensive (loss) income — (235) 2,161 1,926 Net other comprehensive (loss) income (16,676) (2,566) 6,652 (12,590) Balance at December 31, 2021 ($6,795) ($4,013) ($9,173) ($19,981)

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings per Common Share The following table presents the calculation of EPS: (Dollars and shares in thousands, except per share amounts) Years ended December 31, 2023 2022 2021 Earnings per basic and diluted earnings per common share: Net income $48,176 $71,681 $76,870 Less: dividends and undistributed earnings allocated to participating securities (85) (202) (223) Net income available to common shareholders $48,091 $71,479 $76,647 Shares: Weighted average common shares outstanding for basic EPS 17,033 17,246 17,310 Dilutive effect of common stock equivalents 29 135 145 Weighted average common shares outstanding for diluted EPS 17,062 17,381 17,455 EPS: Basic EPS $2.82 $4.14 $4.43 Diluted EPS $2.82 $4.11 $4.39 Weighted average common stock equivalents, not included in common stock equivalents above because they were anti-dilutive, totaled 465,997, 149,742 and 100,150, respectively, for the years ended December 31, 2023, 2022 and 2021.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Financial Instruments with Off-Balance Risk The Corporation is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers and to manage the Corporation’s exposure to fluctuations in interest rates. These financial instruments include commitments to extend credit and standby letters of credit, as well as derivative financial instruments, such as mortgage loan commitments, loan related derivative contracts and interest rate risk management contracts. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the Consolidated Balance Sheets. The contract or notional amounts of these instruments reflect the extent of involvement the Corporation has in particular classes of financial instruments. See Note 9 for additional disclosure pertaining to derivative financial instruments. Financial Instruments Whose Contract Amounts Represent Credit Risk (Unfunded Commitments) Commitments to Extend Credit Commitments to extend credit are agreements to lend to a customer as long as there are no violations of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since some of the commitments are expected to expire without being drawn upon, total commitment amounts do not necessarily represent future cash requirements. Each borrower’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained is based on management’s credit evaluation of the borrower. Standby Letters of Credit Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. These standby letters of credit are primarily issued to support the financing needs of the Bank’s commercial customers. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan facilities to customers. The collateral supporting those commitments is essentially the same as for other commitments. Most standby letters of credit extend for one year. At December 31, 2023 and 2022, there were no liabilities to beneficiaries resulting from standby letters of credit. Should the Corporation be required to make payments to the beneficiary, repayment from the customer to the Corporation is required. The following table presents the contractual and notional amounts of financial instruments with off-balance sheet risk: (Dollars in thousands) December 31, 2023 2022 Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $1,185,196 $1,308,873 Standby letters of credit 9,323 9,028 ACL on Unfunded Commitments The activity in the ACL on unfunded commitments for the year ended December 31, 2023 is presented below: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $1,236 $988 $2,224 $50 $— $16 $16 $2,290 Provision (145) (166) (311) (35) — (4) (4) (350) Ending Balance $1,091 $822 $1,913 $15 $— $12 $12 $1,940 The activity in the ACL on unfunded commitments for the year ended December 31, 2022 is presented below: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $1,267 $816 $2,083 $62 $— $16 $16 $2,161 Provision (31) 172 141 (12) — — — 129 Ending Balance $1,236 $988 $2,224 $50 $— $16 $16 $2,290 Other Contingencies Litigation The Corporation is involved in various claims and legal proceedings arising out of the ordinary course of business. Management is of the opinion, based on its review with counsel of the development of such matters to date, that the ultimate disposition of such matters will not materially affect the consolidated balance sheets or statements of income of the Corporation. Other Matters On September 27, 2023, the Bank entered into a settlement with the DOJ through an agreement to resolve allegations that it violated fair lending laws in the state of Rhode Island from 2016 to 2021. Under the settlement, the Bank will provide $7.0 million in loan subsidies over a five-year period with the goal of increasing home mortgage loans, home improvement loans, and home refinance loans in specific census tracts in Rhode Island. Loan subsidies may include originating a loan for a home purchase, refinancing or home improvement at an interest rate below the otherwise prevailing market interest rate offered by Washington Trust and payment of the initial mortgage insurance premium on loans subject to such mortgage insurance. The cost of such subsidies will generally be recognized over the life of the respective loans. Loan subsidies may also include down payment assistance and closing cost assistance. The Bank also will commit $2.0 million for focused community outreach and marketing efforts over a five-year period. The expenses associated with community outreach and marketing efforts will be recorded in the period in which the activities occur and are consistent with historical spending levels. In addition, the Bank will commit to opening two full-service branches in specific census tracts in Rhode Island, including the previously announced new branch in Olneyville, Rhode Island. The settlement included no civil penalties levied against the Bank. The United States District Court for the District of Rhode Island approved the settlement on October 31, 2023. The settlement resolves all claims made by the DOJ against the Bank related to its lending practices in the state of Rhode Island from 2016 to 2021. Other When selling a residential real estate mortgage loan or acting as originating agent on behalf of a third party, Washington Trust generally makes various representations and warranties. The specific representations and warranties depend on the nature of the transaction and the requirements of the buyer. Contractual liability may arise when the representations and warranties are breached. In the event of a breach of these representations and warranties, Washington Trust may be required to either repurchase the residential real estate mortgage loan (generally at unpaid principal balance plus accrued interest) with the identified defects or indemnify (“make-whole”) the investor for its losses. In the case of a repurchase, the Corporation will bear any subsequent credit loss on the residential real estate mortgage loan. Washington Trust has experienced an insignificant number of repurchase demands over a period of many years. As of December 31, 2023 and 2022, the carrying value of loans repurchased due to representation and warranty claims was $1.5 million and $1.0 million, respectively. Washington Trust has recorded a reserve for its exposure to losses for premium recapture and the obligation to indemnify or repurchase previously sold residential real estate mortgage loans. The reserve balance amounted to $245 thousand and $265 thousand at December 31, 2023 and 2022, respectively, and is included in other liabilities in the Consolidated Balance Sheets. Any change in the estimate is recorded in mortgage banking revenues in the Consolidated Statements of Income.

Parent Company Financial Statem

Parent Company Financial Statements	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Parent Company Financial Statements	Parent Company Financial Statements The following tables present parent company only condensed financial statements of the Bancorp, reflecting the investment in the Bank on the equity basis of accounting. The Statements of Changes in Shareholders’ Equity for the parent company only are identical to the Consolidated Statements of Changes in Shareholders’ Equity and are therefore not presented. Balance Sheets (Dollars in thousands) December 31, 2023 2022 Assets: Cash on deposit with bank subsidiary $4,701 $15,557 Investment in subsidiaries at equity value: Bank 488,751 458,750 Non-bank 685 685 Dividends receivable from bank subsidiary 9,925 10,578 Other assets 1,603 1,293 Total assets $505,665 $486,863 Liabilities and Shareholders’ Equity: Junior subordinated debentures $22,681 $22,681 Dividends payable 10,021 10,349 Other liabilities 277 164 Shareholders’ equity 472,686 453,669 Total liabilities and shareholders’ equity $505,665 $486,863 Statements of Income (Dollars in thousands) Years ended December 31, 2023 2022 2021 Income: Dividends from subsidiaries: Bank $38,822 $53,240 $45,732 Non-bank 46 20 11 Other losses (300) — (102) Total income 38,568 53,260 45,641 Expenses: Interest on junior subordinated debentures 1,543 739 370 Other expenses 681 591 622 Total expenses 2,224 1,330 992 Income before income taxes 36,344 51,930 44,649 Income tax benefit 542 273 230 Income before equity in undistributed earnings (losses) of subsidiaries 36,886 52,203 44,879 Equity in undistributed earnings (losses) of subsidiaries: Bank 11,290 19,565 32,045 Non-bank — (87) (54) Net income $48,176 $71,681 $76,870 Statements of Cash Flows (Dollars in thousands) Years ended December 31, 2023 2022 2021 Cash flows from operating activities: Net income $48,176 $71,681 $76,870 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed (earnings) losses of subsidiaries: Bank (11,290) (19,565) (32,045) Non-bank — 87 54 Tax (expense) benefit from stock option exercises and other equity awards (34) 78 182 Deferred income tax (benefit) expense (56) 5 (24) Decrease (increase) in dividend receivable 653 2,386 (1,128) Decrease (increase) in other assets 8 (175) 50 Increase in accrued expenses and other liabilities 113 93 31 Other, net 36 (97) (182) Net cash provided by operating activities 37,606 54,493 43,808 Cash flows from investing activities: Repayment of equity investment in subsidiary — 1,096 — Purchases of other equity investments, net (263) (375) (650) Net cash (used in) provided by investing activities (263) 721 (650) Cash flows from financing activities: Treasury stock purchased (8,814) (9,479) — Net proceeds from stock option exercises and issuance of other equity awards, net of awards surrendered (754) (821) (177) Cash dividends paid (38,631) (37,647) (36,349) Net cash used in financing activities (48,199) (47,947) (36,526) Net (decrease) increase in cash (10,856) 7,267 6,632 Cash at beginning of year 15,557 8,290 1,658 Cash at end of year $4,701 $15,557 $8,290

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income	$ 48,176	$ 71,681	$ 76,870

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations The Bancorp is a publicly-owned registered bank holding company that has elected to be a financial holding company. The Bancorp’s principal subsidiary is the Bank, a Rhode Island chartered financial institution founded in 1800. The Bank is the oldest community bank in the nation and the largest state-chartered bank headquartered in Rhode Island. Washington Trust offers a full range of financial services, including commercial, residential and consumer lending, retail and commercial deposit products, and wealth management and trust services through its offices in Rhode Island, Massachusetts and Connecticut.
Basis of Presentation	Basis of Presentation The accounting and reporting policies of Washington Trust conform to GAAP and to general practices of the banking industry. The consolidated financial statements include the accounts of the Bancorp and its wholly-owned subsidiaries, except subsidiaries that are not deemed necessary to be consolidated. Through consolidation, intercompany balances and transactions have been eliminated. The Bancorp owns the common stock of two capital trusts, which have issued trust preferred securities. These capital trusts are variable interest entities in which the Bancorp is not the primary beneficiary and, therefore, are not consolidated. The capital trust’s only assets are junior subordinated debentures issued by the Bancorp, which were acquired by the capital trusts using the proceeds from the issuance of the trust preferred securities and common stock. The Bancorp’s equity interest in the capital trusts, which is classified in other assets, and the junior subordinated debentures are included in the Consolidated Balance Sheets. Interest expense on the junior subordinated debentures is included in the Consolidated Statements of Income. Reclassification Certain previously reported amounts have been reclassified to conform to the current year’s presentation.
Use of Estimates	Use of Estimates In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ from those estimates. Management considers the ACL on loans to be a material estimate that is particularly susceptible to change.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents, as referenced in the accompanying Consolidated Statements of Cash Flows, consists of cash and due from banks and short-term investments. Cash and due from Banks Cash and due from banks includes cash on hand, cash items in process of collection, cash on deposit at the FRBB and other correspondent banks, as well as cash pledged to derivative counterparties. Cash on deposit includes interest-bearing deposits held at correspondent banks of $74.5 million and $65.8 million, respectively, at December 31, 2023 and 2022. Cash collateral pledged to derivative counterparties represents restricted cash balances. See Note 9 for additional disclosure regarding cash collateral pledged to derivative counterparties. Short-term Investments Short-term investments consist of highly liquid investments with a maturity date of three months or less when purchased and are considered to be cash equivalents. The Corporation’s short-term investments may be composed of overnight federal funds sold, securities purchased under resale agreements, money market mutual funds and U.S. Treasury bills.
Securities	Securities Management determines the appropriate classification of securities at the time of purchase. Investments in debt securities that management has the positive intent and ability to hold to maturity are classified as held to maturity and carried at amortized cost. Securities not classified as held to maturity are classified as available for sale. Securities available for sale consist of debt securities that are available for sale to respond to changes in market interest rates, liquidity needs, changes in funding sources and other similar factors. These assets are specifically identified and are carried at fair value. Changes in fair value of available for sale securities, net of applicable income taxes, are reported as a separate component of shareholders’ equity. Washington Trust does not currently have securities designated as held to maturity and also does not maintain a trading portfolio. Premiums and discounts are amortized and accreted over the term of the securities on a method that approximates the level yield method. The amortization and accretion is included in interest income on securities. Interest income is recognized when earned. Realized gains or losses from sales of securities are recorded on the trade date and are determined using the specific identification method. The fair values of securities may be based on either quoted market prices or third-party pricing services. The Corporation excludes accrued interest from the amortized cost basis of debt securities and reports accrued interest in other assets in the Consolidated Balance Sheets. The Corporation also excludes accrued interest from the estimate of credit losses on debt securities. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a debt security placed on nonaccrual is reversed against interest income. Allowance for Credit Losses on Securities For available for sale debt securities in an unrealized loss position, management first assesses whether the Corporation intends to sell, or if it is likely that the Corporation will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through a provision for credit losses recognized in the Consolidated Statements of Income. For debt securities available for sale that do not meet either of these criteria, management evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers both quantitative and qualitative factors. A substantial portion of available for sale debt securities held by the Corporation are obligations issued by U.S. government agency and U.S. government-sponsored enterprises, including mortgage-backed securities. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major credit rating agencies and have a long history of no credit losses. For these securities, management takes into consideration the long history of no credit losses and other factors to assess the risk of nonpayment even if the U.S. government were to default. As such, the Corporation utilized a zero credit loss estimate for these securities. For available for sale debt securities that are not guaranteed by U.S. government agencies and U.S. government-sponsored enterprises, such as individual name issuer trust preferred debt securities and corporate bonds, management utilizes a third-party credit modeling tool based on observable market data, which assists management in identifying any potential credit risk associated with these available for sale debt securities. This model estimates probability of default, loss given default and exposure at default for each security. In addition, qualitative factors are also considered, including the extent to which fair value is less than amortized cost, changes to the credit rating of the security by a rating agency, and adverse conditions specifically related to the security, among other factors. If a credit loss exists based on the results of this assessment, an ACL (contra asset) is recorded, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is considered market-related and is recognized in other comprehensive income, net of taxes. Changes in the ACL on available for sale debt securities are recorded as provision for credit losses. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met.
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock The Bank is a member of the FHLB, which is a cooperative that provides services, including funding in the form of advances, to its member banking institutions. The primary reason for the Bank’s membership is to gain access to a reliable source of wholesale funding in order to manage interest rate risk. The purchase of FHLB stock is a requirement for a member to gain access to funding and the Bank must own a minimum amount of FHLB stock, calculated periodically based primarily on its level of borrowings from the FHLB. The Bank purchases FHLB stock in proportion to the volume of funding received and views the purchases as a necessary long-term investment for the purposes of balance sheet liquidity and not for investment return. No market exists for shares of FHLB stock and therefore, it is carried at cost. FHLB stock may be redeemed at par value five years following termination of FHLB membership, subject to limitations which may be imposed by the FHLB or its regulator, the Federal Housing Finance Board, to maintain capital adequacy of the FHLB. While the Bank currently has no intentions to terminate its FHLB membership, the ability to redeem its investment in FHLB stock would be subject to the conditions imposed by the FHLB. The Bank monitors its investment to determine if impairment exists. Based on the capital adequacy and the liquidity position of the FHLB, management believes there is no impairment related to the carrying amount of FHLB stock included in the Consolidated Balance Sheet as of December 31, 2023.
Mortgage Loans Held for Sale	Mortgage Loans Held for Sale Residential real estate mortgage loans originated and intended for sale in the secondary market are classified as held for sale. ASC 825, “Financial Instruments” allows for the irrevocable option to elect fair value accounting for the initial and subsequent measurement for certain financial assets and liabilities on a contract-by-contract basis that may otherwise not be required to be measured at fair value under other accounting standards. The Corporation has elected the fair value option for mortgage loans held for sale in order to better match changes in fair values of the loans with changes in the fair value of the derivative forward sale commitment contracts used to economically hedge them. Changes in the fair value of mortgage loans held for sale accounted for under the fair value option are included in mortgage banking revenues. Gains and losses on residential loan sales are recognized at the time of sale and are included in mortgage banking revenues. Upfront fees and costs related to mortgage loans held for sale for which the fair value option was elected are recognized in mortgage banking revenues as received / incurred and are not deferred. Commissions received on mortgage loans brokered to various investors are recognized when received and are included in mortgage banking revenues.
Loan Servicing Rights	Loan Servicing Rights When residential real estate mortgage loans held for sale are sold with servicing retained, mortgage servicing right assets are recognized as separate assets. Mortgage servicing rights are originally recorded at fair value. Fair value is based on a valuation model that incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, ancillary income, prepayment speeds, and default rates and losses. Mortgage servicing rights are included in other assets and are amortized as an offset to mortgage banking revenues over the period of estimated net servicing income. Mortgage servicing rights are periodically evaluated for impairment based on their fair value. Impairment is measured on an aggregated basis by stratifying the rights based on homogeneous characteristics such as note rate and loan type. Any impairment is recognized through a valuation allowance and as a reduction to mortgage banking revenues.
Loans	Loans Portfolio Loans Loans are carried at the principal amount outstanding, adjusted by partial charge-offs and net of unamortized deferred loan origination fees and costs. Interest income is accrued on a level yield basis based upon principal amounts outstanding, except for loans on nonaccrual status. Deferred loan origination fees and costs are amortized as an adjustment to yield over the term of the related loans. For purchased loans, which did not show signs of credit deterioration at the time of purchase, interest income is also accrued on a level yield basis based upon principal amounts outstanding and is then further adjusted by accretion of any discount or amortization of any premium associated with the loans. Nonaccrual Loans Loans, with the exception of certain well-secured loans that are in the process of collection, are placed on nonaccrual status and interest recognition is suspended when such loans are 90 days or more overdue with respect to principal and/or interest, or sooner if considered appropriate by management. Well-secured loans are permitted to remain on accrual status provided that full collection of principal and interest is assured and the loan is in the process of collection. Loans are also placed on nonaccrual status when, in the opinion of management, full collection of principal and interest is doubtful. When loans are placed on nonaccrual status, interest previously accrued but not collected is reversed against current period income. Subsequent interest payments received on nonaccrual loans are applied to the outstanding principal balance of the loan or recognized as interest income depending on management’s assessment of the ultimate collectability of the loan. Loans are removed from nonaccrual status when they have been current as to principal and interest (generally for six months), the borrower has demonstrated an ability to comply with repayment terms, and when, in management’s opinion, the loans are considered to be fully collectible. Troubled Loan Modifications Effective January 1, 2023, a loan that has been modified is considered a TLM when the modification is made to a borrower experiencing financial difficulty and the modification has a direct impact to the contractual cash flows. If both of the aforementioned criteria are met, then the modification is considered a TLM and subject to the enhanced disclosure requirements. In the course of resolving problem loans, the Corporation may choose to modify the contractual terms of loans to borrowers who are experiencing financial difficulty. Such modifications to borrowers experiencing financial difficulty may include modified contractual terms that have a direct impact to contractual cash flows, including principal forgiveness, interest rate reductions, maturity extensions, other-than-insignificant payment delays, or any combination thereof. Debt could be bifurcated with separate terms for each tranche of the TLM. Executing a TLM in lieu of aggressively enforcing the collection of the loan may benefit the Corporation by increasing the ultimate probability of collection. The following is a description of each type of modifications for a TLM: • Principal forgiveness results in the reduction in the outstanding principal balance of the loan and can result voluntarily through renegotiated contractual terms with the borrower or involuntarily through a bankruptcy proceeding. • An interest rate reduction results in the contractual interest rate being reduced from the original agreement. • A maturity extension represents an extension of the term of the loan beyond its original contractual maturity date. • An other-than-insignificant payment delay is a deferral arrangement with the borrower, which allows them to delay a scheduled loan payment to a later date. The Corporation considers that a three months or less payment delay generally would be considered insignificant. • A combination includes loans that have undergone more than one of the above loan modification types. Nonaccrual loans that become TLMs generally remain on nonaccrual status for six months, subsequent to being modified, before management considers their return to accrual status. If a TLM is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. TLMs are reported as such for at least one year from the date of the modification. If the TLM performs in accordance with the modified contractual terms for that period of time, it would be removed from this classification. Troubled Debt Restructured Loans Prior to the adoption of ASU 2022-02, a loan that had been modified or renewed was considered to be a TDR when two conditions were met: 1) the borrower was experiencing financial difficulty and 2) concessions were made for the borrower’s benefit that would not otherwise have been considered for a borrower or a transaction with similar credit risk characteristics. These concessions may have included modifications of the terms of the debt such as deferral of payments, extension of maturity, reduction of principal balance, reduction of the stated interest rate other than normal market rate adjustments, or a combination of these concessions. Debt could be bifurcated with separate terms for each tranche of the restructured debt. Restructuring of a loan in lieu of aggressively enforcing the collection of the loan may benefit the Corporation by increasing the ultimate probability of collection. TDRs were classified as accruing or non-accruing based on management’s assessment of the collectability of the loan. Loans that were already on nonaccrual status at the time of the restructuring generally remained on nonaccrual status for approximately six months before management considered such loans for return to accruing status. Accruing restructured loans were placed into nonaccrual status if and when the borrower failed to comply with the restructured terms and management deemed it unlikely that the borrower would return to a status of compliance in the near term and full collection of principal and interest was in doubt. TDRs were reported as such for at least one year from the date of the restructuring. In years after the restructuring, TDRs were removed from this classification if the restructuring did not involve a below-market rate concession and the loan was performing in accordance with their modified contractual terms for a reasonable period of time. Individually Analyzed Loans Individually analyzed loans are individually assessed for credit impairment and include nonaccrual commercial loans, TLMs, as well as certain other loans based on the underlying risk characteristics and the discretion of management to individually analyze such loans. Prior to January 1, 2023, individually analyzed loans also included TDRs.
Allowance for Credit Losses on Loans	Allowance for Credit Losses on Loans The ACL on loans is established through a provision for credit losses recognized in the Consolidated Statements of Income. The ACL on loans is also increased by recoveries of amounts previously charged-off and is reduced by charge-offs on loans. Loan charge-offs are recognized when management believes the collectability of the principal balance outstanding is unlikely. Full or partial charge-offs on collateral dependent individually analyzed loans are generally recognized when the collateral is deemed to be insufficient to support the carrying value of the loan. The ACL on loans is management’s estimate of expected lifetime credit losses on loans carried at amortized cost. The Corporation made an accounting policy election to exclude accrued interest from the amortized cost basis of loans and reports accrued interest in other assets in the Consolidated Balance Sheets. The Corporation also excludes accrued interest from the estimate of credit losses on loans. The level of the ACL on loans is based on management’s ongoing review of all relevant information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the calculation of loss given default and the estimation of expected credit losses. As discussed further below, adjustments to historical information are made for differences in specific risk characteristics that may not be reflected in historical loss rates. Management employs a process and methodology to estimate the ACL on loans that evaluates both quantitative and qualitative factors. In accordance with the Corporation’s ACL policy, the methodology is reviewed no less than annually. The methodology for evaluating quantitative factors consists of two basic components. The first component involves pooling loans into portfolio segments for loans that share similar risk characteristics. Pooled loan portfolio segments include CRE (including a commercial construction sub-segment), C&I, residential real estate, home equity and other consumer loans. The second component involves identifying individually analyzed loans that do not share similar risk characteristics with loans that are pooled into portfolio segments. Individually analyzed loans include nonaccrual commercial loans, TLMs, as well as certain other loans based on the underlying risk characteristics and the discretion of management to individually analyze such loans. Prior to January 1, 2023, individually analyzed loans included reasonably expected TDRs and executed TDRs. For loans that are individually analyzed, the ACL is measured using a DCF method based upon the loan’s contractual effective interest rate, or at the loan’s observable market price, or, if the loan is collateral dependent, at the fair value of the collateral. Factors management considers when measuring the extent of expected credit loss include payment status, collateral value, borrower financial condition, guarantor support and the probability of collecting scheduled principal and interest payments when due. For collateral dependent loans for which repayment is to be provided substantially through the sale of the collateral, management adjusts the fair value for estimated costs to sell. For collateral dependent loans for which repayment is to be provided substantially through the operation of the collateral, estimated costs to sell are not incorporated into the measurement. Management may also adjust appraised values to reflect estimated market value declines or apply other discounts to appraised values for unobservable factors resulting from its knowledge of circumstances associated with the collateral. For pooled loans, the Corporation utilizes a DCF methodology to estimate credit losses over the expected life of the loan. The life of the loan excludes expected extensions, renewals and modifications, unless the extension or renewal options are included in the original or modified contract terms and not unconditionally cancellable by the Corporation. The methodology incorporates a probability of default and loss given default framework. Default triggers include the loan has become past due by 90 or more days, a charge-off has occurred, the loan has been placed on nonaccrual status, the loan has been modified as a TLM (effective January 1, 2023; TDR prior to January 1, 2023), or the loan is risk-rated as special mention or classified. Loss given default is estimated based on historical credit loss experience. Probability of default is estimated utilizing a regression model that incorporates econometric factors. Econometric factors are selected based on the correlation of the factor to historical credit losses for each portfolio segment. The following table summarizes the econometric factors utilized for each loan portfolio segment as of the dates indicated: Econometric Factors Loan portfolio segment At December 31, 2023 At December 31, 2022 CRE NUR & GDP NUR & GDP C&I NUR & GDP NUR & GDP Residential real estate NUR & HPI NUR & HPI Home equity NUR & HPI NUR & HPI Other consumer GDP GDP To estimate the probability of default, the model utilizes forecasted econometric factors over a one-year reasonable and supportable forecast period. After the forecast period, the econometric factors revert to their historical mean on a straight-line basis over a one-year reversion period resulting in a constant default rate after the reversion period. The DCF methodology combines the probability of default, the loss given default, prepayment speeds and the remaining life of the loan to estimate a reserve for each loan. The sum of all the loan level reserves are aggregated for each portfolio segment and a loss rate factor is derived. Quantitative loss factors are also supplemented by certain qualitative risk factors reflecting management’s view of how losses may vary from those represented by quantitative loss rates. The qualitative risk factors management considers include: 1) changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses; 2) changes in international, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments; 3) changes in the nature and volume of the portfolio and in the terms of loans; 4) changes in the experience, ability, and depth of lending management and other relevant staff; 5) changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or rated loans; 6) changes in the quality of the institution’s credit review system; 7) changes in the value of underlying collateral for collateral dependent loans; 8) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and 9) the effect of other external factors such as legal and regulatory requirements on the level of estimated credit losses in the institution’s existing portfolio. Qualitative loss factors are applied to each portfolio segment with the range of amounts determined by historical loan charge-offs of a peer group of similar-sized regional banks. Because the methodology is based upon historical experience and trends, current economic data, reasonable and supportable forecasts, as well as management’s judgment, factors may arise that result in different estimations. Deteriorating conditions or assumptions could lead to further increases in the ACL on loans, conversely improving conditions or assumptions could lead to further reductions in the ACL on loans. In addition, various regulatory agencies periodically review the ACL on loans. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination. The ACL on loans is an estimate, and ultimate losses may vary from management’s estimate.
Allowance for Credit Losses on Unfunded Commitments	Allowance for Credit Losses on Unfunded Commitments The ACL on unfunded commitments is management’s estimate of expected lifetime credit losses over the expected contractual term in which the Corporation is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Corporation. Unfunded commitments for home equity lines of credit and commercial demand loans are considered unconditionally cancellable for regulatory capital purposes and, therefore, are excluded from the calculation to estimate the ACL on unfunded commitments. For each portfolio, estimated loss rates and funding factors are applied to the corresponding balance of unfunded commitments. The estimated loss rates applied to unfunded commitments are the same quantitative and qualitative loss rates applied to the corresponding on-balance sheet amounts in determining the ACL on loans. The estimated funding factor applied to unfunded commitments represents the likelihood that the funding will occur and is based upon the Corporation’s average historical utilization rate for each portfolio. The ACL on unfunded commitments is included in other liabilities in the Consolidated Balance Sheets. The ACL on unfunded commitments is adjusted through a provision for credit losses recognized in the Consolidated Statements of Income.
Premises and Equipment	Premises and Equipment Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation. Depreciation for financial reporting purposes is calculated on the straight-line method over the estimated useful lives of assets. For leasehold improvements, the estimated useful life is the shorter of the expected lease term or the estimated useful life of the improvement. Expected lease terms include lease renewal options to the extent that the exercise of such renewals is reasonably assured. The estimated useful lives of premises and improvements range from 5 to 40 years. For furniture, fixtures and equipment, the estimated useful lives range from 3 to 20 years. Repairs and maintenance costs are charged to noninterest expense as incurred.
Leases	Leases The Corporation has committed to rent premises used in business operations under non-cancelable operating leases and determines if an arrangement meets the definition of a lease upon inception. Operating leases are recorded on the balance sheet, through the recognition of an operating lease ROU asset and an operating lease liability at the commencement date of the new lease. ROU assets represent a right to use an underlying asset for the contractual lease term. Operating lease liabilities represent an obligation to make lease payments arising from the lease. The Corporation’s leases do not provide an implicit interest rate, therefore the Corporation uses its incremental collateralized borrowing rates commensurate with the underlying lease terms to determine the present value of operating lease liabilities. The Corporation’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Corporation’s lease agreements do not contain any residual value guarantees. Operating leases with terms of 12 months or less are included in ROU assets and operating lease liabilities recorded in the Consolidated Balance Sheets. Operating lease terms include options to extend when it is reasonably certain that the Corporation will exercise such options, determined on a lease-by-lease basis. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Variable lease components, such as consumer price index adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities.
Bank-Owned Life Insurance	Bank-Owned Life Insurance The investment in BOLI represents the cash surrender value of life insurance policies on the lives of certain employees who have provided positive consent allowing the Bank to be the beneficiary of such policies. Increases in the cash value of the policies, as well as insurance proceeds received, are recorded in noninterest income and are not subject to income taxes. The financial strength of the insurance carrier is reviewed prior to the purchase of BOLI and annually thereafter.
Goodwill and Identifiable Intangible Assets	Goodwill and Identifiable Intangible Assets Goodwill represents the excess of the purchase price over the net fair value of the acquired businesses. Goodwill is not amortized, but is tested for impairment at the reporting unit level (defined as the segment level), at least annually in the fourth quarter or more frequently whenever events or circumstances occur that indicate that it is more-likely-than-not that an impairment loss has occurred. In assessing impairment, management has the option to perform a qualitative analysis to determine whether the existence of events or circumstances leads to a determination that it is more-likely-than-not that the fair value of the reporting unit is less than its carrying amount. If, after assessing the totality of such events or circumstances, we determine it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then we would not be required to perform an impairment test. The quantitative impairment analysis requires a comparison of each reporting unit’s fair value to its carrying value to identify potential impairment. Goodwill impairment exists when a reporting unit’s carrying value of goodwill exceeds its implied fair value. Significant judgment is applied when goodwill is assessed for impairment. This judgment includes, but may not be limited to, the selection of appropriate discount rates, the identification of relevant market comparables and the development of cash flow projections. The selection and weighting of the various fair value techniques may result in a higher or lower fair value. Judgment is applied in determining the weightings that are most representative of fair value. Intangible assets identified in acquisitions consist of advisory contracts. The value attributed to intangible assets was based on the time period over which they are expected to generate economic benefits. Intangible assets are amortized over their estimated lives using a method that approximates the amount of economic benefits that are realized by the Corporation. Intangible assets with definite lives are tested for impairment whenever events or changes in circumstances indicate that the carrying amount may not be fully recoverable. If applicable, management tests each of the intangibles by comparing the carrying value of the intangible asset to the sum of undiscounted cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its undiscounted cash flows, then an impairment loss would be recognized for the amount by which the carrying amount exceeds its fair value. Impairment would result in a write-down to the estimated fair value based on the anticipated discounted future cash flows. The remaining useful life of the intangible assets that are being amortized is also evaluated to determine whether events and circumstances warrant a revision to the remaining period of amortization.
Property Acquired through Foreclosure or Repossession	Property Acquired through Foreclosure or Repossession Property acquired through foreclosure or repossession is initially recorded at fair value less estimated costs to sell, resulting in a new cost basis. Fair value of such assets is determined based on independent appraisals and other relevant factors. The amount by which the recorded investment in the loan exceeds the fair value (net of estimated costs to sell) at the time of foreclosure or repossession is charged to the ACL on loans. Subsequent to foreclosure or repossession, a valuation allowance is maintained for declines in market value and for estimated selling expenses. Any subsequent increases in fair value of the property are recorded as a reduction to the valuation allowance, but not below zero. Upon sale of foreclosed property, any excess of the carrying value over the sales proceeds is recognized as a loss on sale. Any excess of sales proceeds over the carrying value of the foreclosed property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. Changes to the valuation allowance, expenses associated with ownership of these properties, and gains and losses from their sale are included in other noninterest expense. Loans that are substantively repossessed include only those loans for which the Corporation has obtained control of the collateral, but has not completed legal foreclosure proceedings.
Investment in Real Estate Limited Partnerships	Investments in Real Estate Limited Partnerships The Bank invests in real estate limited partnerships that renovate, own and operate low-income housing complexes. The Bank neither actively participates in the management of nor has a controlling interest in the real estate limited partnerships. The carrying value of such investments is recorded in other assets on the Consolidated Balance Sheets. Investments in real estate limited partnerships are accounted for using the proportional amortization method. Unfunded commitments for future capital contributions are recognized and recorded in other liabilities on the Consolidated Balance Sheets. Under the proportional amortization method, the investment is amortized over the same tax period and in proportion to the total tax benefits expected to be allocated to the Bank. The amortization is recognized as a component of income tax expense in the Consolidated Statements of Income. In addition, operating losses and tax credits generated by the partnership are also recorded as a reduction to income tax expense.
Other Equity Investments	Other Equity Investments The Corporation invests in equity investments without readily determinable fair value. Such equity investments are classified within other assets in the Consolidated Balance Sheet. The Corporation has elected to carry equity investments without readily determinable fair value at cost, less impairment, if any, plus or minus changes in observable prices. A qualitative impairment analysis for equity investments without readily determinable fair value is performed quarterly. If the equity investment is deemed to be impaired, an impairment loss is recognized in the amount by which the carrying value of the equity investment exceeds its estimated fair value. The impairment loss is recognized as a reduction of other noninterest income in the Consolidated Statement of Income. An impairment loss can be reversed in a subsequent period if there are observable transactions for the identical or similar investment of the same issuer at an amount that is greater than the carrying value of the investment that was established when the impairment loss was recognized. The reversal of any impairment loss or other changes resulting from observable transactions are recognized in other noninterest income in the Consolidated Statement of Income.
Impairment of Long-Lived Assets Other than Goodwill	Impairment of Long - Lived Assets Other than Goodwill Long-lived assets, including premises and equipment, operating lease ROU assets and investments in real estate limited partnerships, are tested for impairment whenever events or changes in business circumstances indicate that the carrying
Transfers and Servicing of Assets and Extinguishments of Liabilities	Transfers and Servicing of Assets and Extinguishments of Liabilities The accounting for transfers and servicing of financial assets and extinguishments of liabilities is based on consistent application of a financial components approach that focuses on control. This approach distinguishes transfers of financial assets that are sales from transfers that are secured borrowings. Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Corporation, (2) the transferee obtains the right to pledge or exchange the transferred assets with no conditions that constrain the transferee and provide more than a trivial benefit to the Corporation, and (3) the Corporation does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. If a transfer does not meet the criteria for a sale, the transfer is accounted for as a secured borrowing with a pledge of collateral.
Wealth Management AUA	Wealth Management AUA AUA represents assets held in a fiduciary or agency capacity for wealth management clients and are not included in the Consolidated Balance Sheets, as these are not assets of the Corporation.
Revenue from Contracts with Customers	Revenue from Contracts with Customers ASC 606, Revenue from Contracts with Customers, provides a revenue recognition framework for contracts with customers unless those contracts are within the scope of other accounting standards. The Corporation recognizes revenue from contracts with customers by identifying the performance obligations in its contracts, determining the transaction price in the contract, allocating the transaction price to each performance obligation contained within the contract, as applicable, and then recognizing revenue from its contracts with customers when it satisfies its performance obligations . The performance obligations are generally satisfied as services are rendered and can either be satisfied at a point in time or over time. Revenue that is earned at a point in time is derived from transactional information and is recognized as revenue immediately as the transactions occur or upon providing the service to complete the customer’s transaction. This includes card interchange fees (fee income related to debit card transactions), certain service charges on deposits accounts such as overdraft charges, ATM fees for customers, stop-payment fees, and certain other income such as wire transfer fees and ATM fees for non-customers. Revenue that is earned over time is generally recognized over the term of the contract as services are performed and performance obligations are satisfied. Such revenue includes wealth management revenues, monthly service charges on deposit accounts and certain other income such as safe deposit box rental fees. In certain cases, other parties are involved with providing services to our customers. If the Corporation is a principal in the transaction (providing services itself or through a third party on its behalf), revenues are reported based on the gross consideration received from the customer and any related expenses are reported gross in noninterest expense. If the Corporation is an agent in the transaction (referring customers to another party to provide services), the Corporation reports its net fee or commission retained as revenue. For certain commissions and incentives, such as those paid to employees in our wealth management services and commercial banking segments in order to obtain customer contracts, contract cost assets are established. The contract cost assets are capitalized and amortized over the estimated useful life that the asset is expected to generate benefits. Contract cost assets are included in other assets in the Consolidated Balance Sheets. The amortization of contract cost assets is recorded within salaries and employee benefits expense in the Consolidated Statements of Income.
Pension Costs	Pension Costs Pension benefits are accounted for using the net periodic benefit cost method, which recognizes the compensation cost of an employee’s pension benefit over that employee’s approximate service period. Pension benefit costs and benefit obligations incorporate various actuarial and other assumptions, including discount rates, mortality, rates of return on plan assets and compensation increases. Management evaluates these assumptions on an annual basis and makes modifications to the assumptions based on current rates and trends when it is appropriate to so do. The effect of modifications to those assumptions is recorded in other comprehensive income (loss) and amortized to net periodic cost over future periods. The service cost component of net periodic benefit cost is recognized within salaries and employee benefits expense in the Consolidated Statements of Income. All other components of net periodic benefit cost are recognized in other noninterest expense in the Consolidated Statements of Income. The funded status of defined benefit pension plans, measured as the difference between the fair value of plan assets and the projected benefit obligation, is recognized in the Consolidated Balance Sheet. The changes in the funded status of the defined benefit plans, including actuarial gains and losses and prior service costs and credits, are recognized in comprehensive income in the year in which the changes occur.
Share-Based Compensation	Share-Based Compensation Share-based compensation plans provide for awards of stock options and other equity incentives, including restricted stock units and performance share units. Compensation expense for awards is recognized over the service period based on the fair value at the date of grant and is included in salaries and employee benefits expense in the Consolidated Statements of Income. Grant date fair value for stock options is estimated using the Black-Scholes option-pricing model. Awards of restricted stock units and performance share units are valued at the fair market value of the Bancorp’s common stock as of the award date. Performance share unit compensation expense is based on the most recent performance assumption available and is adjusted as assumptions change. Forfeitures are recognized when they occur. Vesting of the awards may accelerate or may be subject to proportional vesting if there is a change in control, disability, retirement or death. Vested equity awards are issued from treasury stock, when available, or from authorized but unissued stock. Excess tax benefits (expenses) result when tax return deductions differ from recognized share-based compensation cost that are determined using the grant-date fair value approach for financial statement purposes. Excess tax benefits (expenses) related to the settlement of share-based awards are recorded as a decrease (increase) to income tax expense in the Consolidated Income Statements and are classified in the Consolidated Statements of Cash Flows as an operating activity. Dividends declared on restricted stock units issued under the 2013 Stock Option and Incentive Plan are nonforfeitable and paid quarterly in conjunction with dividends declared and paid to common shareholders. Dividends declared on restricted stock units issued under the 2022 Long Term Incentive Plan are accrued at each dividend declaration date and paid upon the issuance of the shares after the award vests. Dividends on performance share units are accrued at each dividend declaration date based on the most recent performance assumptions available and paid upon the issuance of the shares after the award vest.
Income Taxes	Income Taxes Income tax expense is determined based on the asset and liability method, whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The impact of tax legislation changes is recognized as a component of income tax expense in the period of enactment. Valuation allowances are established when necessary to reduce deferred tax assets to an amount, which is more-likely-than-not to be realizable. Additionally, a liability for unrecognized tax benefits is recorded for uncertain tax positions taken by the Corporation on its tax returns for which there is less than a 50% likelihood of being recognized upon a tax examination. Interest related to unrecognized tax benefits is recorded in income tax expense. Penalties, if incurred, would be recognized as a component of income tax expense.
Segment Reporting	Segment Reporting The Corporation manages its operations through two reportable business segments, consisting of Commercial Banking and Wealth Management Services. Additional information on the segments is presented in Note 18. Management uses an allocation methodology to allocate income and expenses to the business lines. Direct activities are assigned to the appropriate business segment to which the activity relates. Indirect activities, such as corporate, technology and other support functions, are allocated to business segments primarily based upon full-time equivalent employee computations. Segment reporting results may be restated, when necessary, to reflect changes in organizational structure or allocation methodology. Any changes in estimates and allocations that may affect the reported results of any business segment will not affect the consolidated financial position or results of operations of the Corporation as a whole.
Earnings Per Common Share	Earnings Per Common Share EPS is calculated utilizing the two-class method. The two-class method is an earnings allocation formula that determines earnings per share of each class of stock according to dividends and participation rights in undistributed earnings. Share‑based awards that entitle holders to receive nonforfeitable dividends before vesting are considered participating securities (i.e., restricted stock units awarded under the 2013 Stock Option and Incentive Plan), not subject to performance-based measures. Undistributed income is allocated to common shareholders and participating securities under the two-class method based upon the proportion of each to the total weighted average shares available. Under the two-class method, basic EPS is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding. Diluted EPS is computed using the weighted-average number of shares determined for the basic EPS computation plus the dilutive effect on common shares outstanding, using the treasury stock method.
Comprehensive Income	Comprehensive Income Comprehensive income is defined as all changes in equity, except for those resulting from transactions with shareholders. Net income is a component of comprehensive income. All other components are referred to in the aggregate as other comprehensive income (loss). Other comprehensive income (loss) includes the after-tax effect of net changes in the fair value of securities available for sale, net changes in fair value of cash flow hedges and net changes in defined benefit pension plan obligations.
Guarantees	Guarantees Standby letters of credit are considered a guarantee of the Corporation. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan facilities to customers. Under the standby letters of credit, the Corporation is required to make payments to the beneficiary of the letters of credit upon request by the beneficiary contingent upon the customer’s failure to perform under the terms of the underlying contract with the beneficiary.
Derivative Insturments and Hedging Activities	Derivative Instruments and Hedging Activities Derivatives are recognized as either assets or liabilities on the balance sheet and are measured at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and resulting designation. For derivatives designated as cash flow hedges, the changes in the fair value are recorded in other comprehensive income (loss) and subsequently reclassified to earnings when gains or losses are realized. For derivatives not designated as hedges, changes in fair value of the derivative instruments are recognized in earnings, in noninterest income. Net accrued interest receivable or payable on derivatives that qualify for hedge accounting are recorded in interest income or interest expense based on the item being hedged. Net accrued interest receivable or payable on derivatives that do not qualify for hedge accounting are reported in noninterest income. When a cash flow hedge is discontinued, but the hedged cash flows or forecasted transaction is still expected to occur, changes in value that were accumulated in other comprehensive income (loss) are amortized or accreted into earnings over the same periods that the hedged transactions will affect earnings.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820, “Fair Value Measurements and Disclosures”, establishes a framework for measuring fair value and expands disclosures about fair value measurements. The required disclosures about fair value measurements have been included in Note 10.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2023
Gain (Loss) on Securities [Line Items]
Summary of Investments	The following tables present the amortized cost, gross unrealized holding gains, gross unrealized holding losses, ACL on securities and fair value of securities by major security type and class of security: (Dollars in thousands) December 31, 2023 Amortized Cost Unrealized Gains Unrealized Losses ACL Fair Value Available for Sale Debt Securities: Obligations of U.S. government-sponsored enterprises $250,450 $15 ($24,723) $— $225,742 Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 879,597 246 (125,887) — 753,956 Individual name issuer trust preferred debt securities 9,400 — (607) — 8,793 Corporate bonds 13,182 — (1,293) — 11,889 Total available for sale debt securities $1,152,629 $261 ($152,510) $— $1,000,380 (Dollars in thousands) December 31, 2022 Amortized Cost Unrealized Gains Unrealized Losses ACL Fair Value Available for Sale Debt Securities: Obligations of U.S. government-sponsored enterprises $231,203 $1 ($31,622) $— $199,582 Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 912,581 269 (138,748) — 774,102 Individual name issuer trust preferred debt securities 9,387 — (627) — 8,760 Corporate bonds 13,169 — (1,685) — 11,484 Total available for sale debt securities $1,166,340 $270 ($172,682) $— $993,928
Securities by Contractual Maturity	The schedule of maturities of available for sale debt securities is presented below. Mortgage-backed securities are included based on weighted average maturities, adjusted for anticipated prepayments. All other debt securities are included based on contractual maturities. Actual maturities may differ from amounts presented because certain issuers have the right to call or prepay obligations with or without call or prepayment penalties. (Dollars in thousands) December 31, 2023 Amortized Cost Fair Value Due in one year or less $86,534 $74,195 Due after one year to five years 475,831 416,771 Due after five years to ten years 308,465 267,513 Due after ten years 281,799 241,901 Total securities $1,152,629 $1,000,380
Securities in a Continuous Unrealized Loss Position	The following tables summarize available for sale debt securities in an unrealized loss position, for which an ACL on securities has not been recorded, segregated by length of time that the securities have been in a continuous unrealized loss position: (Dollars in thousands) Less than 12 Months 12 Months or Longer Total December 31, 2023 # Fair Unrealized # Fair Unrealized # Fair Unrealized Obligations of U.S. government-sponsored enterprises 1 $19,824 ($176) 20 $195,903 ($24,547) 21 $215,727 ($24,723) Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 8 43,887 (262) 154 698,115 (125,625) 162 742,002 (125,887) Individual name issuer trust preferred debt securities — — — 3 8,793 (607) 3 8,793 (607) Corporate bonds — — — 4 11,889 (1,293) 4 11,889 (1,293) Total temporarily impaired securities 9 $63,711 ($438) 181 $914,700 ($152,072) 190 $978,411 ($152,510) (Dollars in thousands) Less than 12 Months 12 Months or Longer Total December 31, 2022 # Fair Unrealized # Fair Unrealized # Fair Unrealized Obligations of U.S. government-sponsored enterprises 4 $20,115 ($638) 18 $169,466 ($30,984) 22 $189,581 ($31,622) Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 95 288,777 (24,960) 66 471,355 (113,788) 161 760,132 (138,748) Individual name issuer trust preferred debt securities — — — 3 8,760 (627) 3 8,760 (627) Corporate bonds — — — 4 11,484 (1,685) 4 11,484 (1,685) Total temporarily impaired securities 99 $308,892 ($25,598) 91 $661,065 ($147,084) 190 $969,957 ($172,682)

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Summary of Loans	The following table presents a summary of loans: (Dollars in thousands) December 31, 2023 2022 Commercial: Commercial real estate (1) $2,106,359 $1,829,304 Commercial & industrial (2) 605,072 656,397 Total commercial 2,711,431 2,485,701 Residential Real Estate: Residential real estate (3) 2,604,478 2,323,002 Consumer: Home equity 312,594 285,715 Other (4) 19,203 15,721 Total consumer 331,797 301,436 Total loans (5) $5,647,706 $5,110,139 (1) CRE consists of commercial mortgages primarily secured by income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings. (2) C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate. (3) Residential real estate consists of mortgage and homeowner construction loans secured by one- to four-family residential properties. (4) Other consists of loans to individuals secured by general aviation aircraft and other personal installment loans. (5) Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022.
Past Due Loans	The following tables present an aging analysis of past due loans, segregated by class of loans: (Dollars in thousands) Days Past Due December 31, 2023 Current 30-59 60-89 90 or More Total Past Due Total Loans Commercial: Commercial real estate $2,106,359 $— $— $— $— $2,106,359 Commercial & industrial 605,062 10 — — 10 605,072 Total commercial 2,711,421 10 — — 10 2,711,431 Residential Real Estate: Residential real estate 2,596,362 4,369 1,738 2,009 8,116 2,604,478 Consumer: Home equity 309,398 2,349 112 735 3,196 312,594 Other 19,180 20 3 — 23 19,203 Total consumer 328,578 2,369 115 735 3,219 331,797 Total loans $5,636,361 $6,748 $1,853 $2,744 $11,345 $5,647,706 (Dollars in thousands) Days Past Due December 31, 2022 Current 30-59 60-89 90 or More Total Past Due Total Loans Commercial: Commercial real estate $1,828,117 $1,187 $— $— $1,187 $1,829,304 Commercial & industrial 656,132 265 — — 265 656,397 Total commercial 2,484,249 1,452 — — 1,452 2,485,701 Residential Real Estate: Residential real estate 2,314,127 4,793 303 3,779 8,875 2,323,002 Consumer: Home equity 284,480 1,103 132 — 1,235 285,715 Other 15,705 16 — — 16 15,721 Total consumer 300,185 1,119 132 — 1,251 301,436 Total loans $5,098,561 $7,364 $435 $3,779 $11,578 $5,110,139
Nonaccrual Loans	The following is a summary of nonaccrual loans, segregated by class of loans: (Dollars in thousands) December 31, 2023 December 31, 2022 Nonaccrual Loans Nonaccrual Loans With an ACL Without an ACL Total With an ACL Without an ACL Total Commercial: Commercial real estate $10,997 $21,830 $32,827 $— $— $— Commercial & industrial — 682 682 — — — Total commercial 10,997 22,512 33,509 — — — Residential Real Estate: Residential real estate 8,495 1,131 9,626 6,009 5,885 11,894 Consumer: Home equity 1,483 — 1,483 360 592 952 Other — — — — — — Total consumer 1,483 — 1,483 360 592 952 Total $20,975 $23,643 $44,618 $6,369 $6,477 $12,846 Accruing loans 90 days or more past due $— $— The following table presents interest income recognized on nonaccrual loans: (Dollars in thousands) Interest Income Recognized Years Ended December 31, 2023 2022 Commercial: Commercial real estate $2,719 $— Commercial & industrial 59 — Total commercial 2,778 — Residential Real Estate: Residential real estate 466 398 Consumer: Home equity 107 62 Other 4 3 Total consumer 111 65 Total $3,355 $463
Summary of TLMs (Formerly TDRs)	The following table presents the carrying value at December 31, 2023, of TLMs made during the period indicated, segregated by class of loans and type of concession granted: (Dollars in thousands) Year ended December 31, 2023 Maturity Extension Combination (1) Total % (2) Commercial: Commercial real estate $13,780 $8,050 $21,830 1 % Commercial & industrial — — — — Total commercial 13,780 8,050 21,830 1 Total $13,780 $8,050 $21,830 — % (1) Combination includes an interest rate reduction, payment deferral and maturity extension. (2) Percentage of TLMs to the total loans outstanding within the respective loan class. The following table presents the financial effect of TLMs made during the period indicated, segregated by class of loans: (Dollars in thousands) Year ended December 31, 2023 Weighted Average Interest Rate Reduction Weighted Average Maturity Extension Weighted Average Other-than-Insignificant Payment Delay Commercial: Commercial real estate 3 % 10 12 Commercial & industrial — — — Total commercial 3 10 12 Total 3 % 10 12	The following table presents the recorded investment in TDRs and other pertinent information: (Dollars in thousands) December 31, 2022 Accruing TDRs $3,571 Nonaccrual TDRs 5,073 Total $8,644 Specific reserves on TDRs included in the ACL on loans $115 Additional commitments to lend to borrowers with TDRs $— The following table presents TDRs occurring during the period indicated and the recorded investment pre- and post- modification: (Dollars in thousands) Outstanding Recorded Investment Year ended December 31, 2022 # of Loans Pre-Modification Post-Modification Commercial: Commercial real estate — $— $— Commercial & industrial 3 1,687 1,687 Total commercial 3 1,687 1,687 Total 3 $1,687 $1,687
Aging of TLMs	The following table presents an aging analysis as of the date indicated, of TLMs that have been modified in the past 12 months: (Dollars in thousands) Days Past Due December 31, 2023 30-59 60-89 Over 90 Total Past Due Current Total Loans Commercial: Commercial real estate $— $— $— $— $21,830 $21,830 Commercial & industrial — — — — — — Total commercial — — — — 21,830 21,830 Total loans $— $— $— $— $21,830 $21,830
Schedule of How Loans Modified As TDR		The following table presents TDRs occurring during the period indicated by type of modification: (Dollars in thousands) Years ended December 31, 2022 Below-market interest rate concession $— Payment deferral — Maturity / amortization concession — Interest only payments — Combination (1) 1,687 Total $1,687 (1) Loans included in this classification were modified with a combination of any two of the concessions listed in this table.
Collateral Dependent Individually Analyzed Loans	The following table presents the carrying value of collateral dependent individually analyzed loans: (Dollars in thousands) December 31, 2023 December 31, 2022 Carrying Value Related Allowance Carrying Value Related Allowance Commercial: Commercial real estate (1) $32,827 $97 $2,103 $— Commercial & industrial (2) 682 — — — Total commercial 33,509 97 2,103 — Residential Real Estate: Residential real estate (3) 1,131 — 5,760 — Consumer: Home equity (3) — — 592 — Other — — — — Total consumer — — 592 — Total $34,640 $97 $8,455 $— (1) Secured by income-producing property. (2) Secured by business assets. (3) Secured by one- to four-family residential properties.
Credit Quality Indicators	The following table summarizes the Corporation’s loan portfolio by credit quality indicator and loan portfolio segment as of December 31, 2023: (Dollars in thousands) Term Loans Amortized Cost by Origination Year 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Revolving Loans Converted to Term Loans Total Commercial: CRE: Pass $327,139 $598,946 $396,468 $168,451 $167,484 $333,356 $42,095 $1,032 $2,034,971 Special Mention — — — — — 16,630 — — 16,630 Classified 21,830 — 18,430 — 14,498 — — — 54,758 Total CRE 348,969 598,946 414,898 168,451 181,982 349,986 42,095 1,032 2,106,359 Gross charge-offs — — — — — 373 — — 373 C&I: Pass 55,607 124,894 52,282 49,812 72,876 145,361 90,664 587 592,083 Special Mention 11,119 — — — 181 — — — 11,300 Classified — 818 189 — 682 — — — 1,689 Total C&I 66,726 125,712 52,471 49,812 73,739 145,361 90,664 587 605,072 Gross charge-offs 37 — — — — — — — 37 Residential Real Estate: Residential real estate: Current 431,563 808,442 666,447 255,554 113,462 320,894 — — 2,596,362 Past Due — — — 886 594 6,636 — — 8,116 Total residential real estate 431,563 808,442 666,447 256,440 114,056 327,530 — — 2,604,478 Gross charge-offs — — — — — — — — — Consumer: Home equity: Current 24,925 14,997 6,829 2,919 1,982 3,696 241,459 12,591 309,398 Past Due — — — — 130 829 1,301 936 3,196 Total home equity 24,925 14,997 6,829 2,919 2,112 4,525 242,760 13,527 312,594 Gross charge-offs — — — — — — — — — Other: Current 6,777 3,530 3,685 1,001 120 3,824 243 — 19,180 Past Due 21 — — — — — 2 — 23 Total other 6,798 3,530 3,685 1,001 120 3,824 245 — 19,203 Gross charge-offs 159 — 8 — — — — — 167 Total Loans $878,981 $1,551,627 $1,144,330 $478,623 $372,009 $831,226 $375,764 $15,146 $5,647,706 Total gross charge-offs $196 $— $8 $— $— $373 $— $— $577 The following table summarizes the Corporation’s loan portfolio by credit quality indicator and loan portfolio segment as of December 31, 2022: (Dollars in thousands) Term Loans Amortized Cost by Origination Year 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Revolving Loans Converted to Term Loans Total Commercial: CRE: Pass $591,596 $383,062 $177,286 $170,259 $148,371 $242,061 $6,243 $1,437 $1,720,315 Special Mention 20,579 22,324 328 24,270 28,676 10,564 146 — 106,887 Classified — — 503 — 1,187 412 — — 2,102 Total CRE 612,175 405,386 178,117 194,529 178,234 253,037 6,389 1,437 1,829,304 C&I: Pass 127,152 63,180 71,265 86,470 85,011 114,241 90,987 745 639,051 Special Mention 13,566 — — — 1,427 — 1,426 — 16,419 Classified — 225 — 7 — — 695 — 927 Total C&I 140,718 63,405 71,265 86,477 86,438 114,241 93,108 745 656,397 Residential Real Estate: Residential real estate: Current 838,566 707,760 277,613 123,098 72,541 294,549 — — 2,314,127 Past Due — 600 — 266 2,315 5,694 — — 8,875 Total residential real estate 838,566 708,360 277,613 123,364 74,856 300,243 — — 2,323,002 Consumer: Home equity: Current 20,665 8,308 3,742 2,406 1,947 3,139 235,004 9,268 284,479 Past Due — — — — 68 98 548 522 1,236 Total home equity 20,665 8,308 3,742 2,406 2,015 3,237 235,552 9,790 285,715 Other: Current 4,231 4,287 1,676 299 235 4,726 251 — 15,705 Past Due 16 — — — — — — — 16 Total other 4,247 4,287 1,676 299 235 4,726 251 — 15,721 Total Loans $1,616,371 $1,189,746 $532,413 $407,075 $341,778 $675,484 $335,300 $11,972 $5,110,139 Washington Trust may renew commercial loans at or immediately prior to their maturity. In the tables above, renewals subject to full credit evaluation before being granted are reported as originations in the period renewed. In addition, loans with extensions of maturity dates of more than three months are reported as originations in the period extended.
Loan Servicing Rights	The following table presents an analysis of loan servicing rights: (Dollars in thousands) Loan Servicing Valuation Total Balance at December 31, 2020 $7,588 ($154) $7,434 Loan servicing rights capitalized 5,671 — 5,671 Amortization (3,438) — (3,438) Decrease in impairment reserve — 154 154 Balance at December 31, 2021 9,821 — 9,821 Loan servicing rights capitalized 957 — 957 Amortization (1,763) — (1,763) Balance at December 31, 2022 9,015 — 9,015 Loan servicing rights capitalized 1,069 — 1,069 Amortization (1,538) — (1,538) Increase in impairment reserve — (34) (34) Balance at December 31, 2023 $8,546 ($34) $8,512
Amortization Expense Related to Loan Servicing Assets	The following table presents estimated aggregate amortization expense related to loan servicing assets: (Dollars in thousands) Years ending December 31: 2024 $1,330 2025 1,123 2026 948 2027 801 2028 676 2029 and thereafter 3,668 Total estimated amortization expense $8,546
Loans Serviced for Others, by Loan Portfolio	The following table presents the balance of loans serviced for others by loan portfolio: (Dollars in thousands) December 31, 2023 2022 Residential real estate $1,454,342 $1,457,896 Commercial 135,954 107,762 Total $1,590,296 $1,565,658

Allowance for Credit Losses o_2

Allowance for Credit Losses on Loans (Tables)	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Allowance for Credit Losses on Loans Rollforward Analysis	The following table presents the activity in the ACL on loans for the year ended December 31, 2023: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $18,435 $10,356 $28,791 $7,740 $1,115 $381 $1,496 $38,027 Charge-offs (373) (37) (410) — — (167) (167) (577) Recoveries — 12 12 3 10 32 42 57 Provision 6,082 (2,243) 3,839 (340) (77) 128 51 3,550 Ending Balance $24,144 $8,088 $32,232 $7,403 $1,048 $374 $1,422 $41,057 The following table presents the activity in the ACL on loans for the year ended December 31, 2022: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $18,933 $10,832 $29,765 $7,860 $1,069 $394 $1,463 $39,088 Charge-offs — (36) (36) — — (148) (148) (184) Recoveries 445 29 474 21 12 45 57 552 Provision (943) (469) (1,412) (141) 34 90 124 (1,429) Ending Balance $18,435 $10,356 $28,791 $7,740 $1,115 $381 $1,496 $38,027 The following table presents the activity in the ACL on loans for the year ended December 31, 2021: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $22,065 $12,228 $34,293 $8,042 $1,300 $471 $1,771 $44,106 Charge-offs — (307) (307) (107) (183) (66) (249) (663) Recoveries — 41 41 89 91 25 116 246 Provision (3,132) (1,130) (4,262) (164) (139) (36) (175) (4,601) Ending Balance $18,933 $10,832 $29,765 $7,860 $1,069 $394 $1,463 $39,088

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	The following presents a summary of premises and equipment: (Dollars in thousands) December 31, 2023 2022 Land $6,042 $6,042 Premises and improvements 48,573 47,029 Furniture, fixtures and equipment 23,980 24,463 Total premises and equipment 78,595 77,534 Less: accumulated depreciation 46,304 45,984 Total premises and equipment, net $32,291 $31,550 The following table presents a summary of depreciation expense: (Dollars in thousands) Year ended December 31, Fixed Asset Type Income Statement Line Item 2023 2022 2021 Premises and improvements Net occupancy $1,840 $1,668 $1,470 Furniture, fixtures and equipment Equipment 2,165 1,797 1,941 Total depreciation expense $4,005 $3,465 $3,411

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Schedule of Operating Lease Terms	The following table presents information regarding the Corporation’s operating leases: At December 31, 2023 2022 Weighted average discount rate 3.80 % 3.34 % Range of lease expiration dates 3 months - 24 years 7 months - 25 years Range of lease renewal options 3 years - 5 years 3 years - 5 years Weighted average remaining lease term 13.1 years 13.3 years
Schedule of Remaining Operating Lease Payments, Inclusive of Renewal Options	The following table presents the undiscounted annual lease payments under the terms of the Corporation’s operating leases at December 31, 2023, including a reconciliation to the present value of operating lease liabilities recognized in the Consolidated Balance Sheets: (Dollars in thousands) Years ending December 31: 2024 $4,243 2025 3,701 2026 3,460 2027 2,917 2028 2,595 2029 and thereafter 23,958 Total operating lease payments 40,874 Less: interest 8,847 Present value of operating lease liabilities (1) $32,027 (1) Includes short-term operating lease liabilities of $3.1 million.
Schedule of Total Lease Expense	The following table presents the components of total lease expense and operating cash flows: (Dollars in thousands) Year ended December 31, 2023 2022 2021 Lease Expense: Operating lease expense $4,476 $4,159 $4,015 Variable lease expense 201 104 69 Total lease expense (1) $4,677 $4,263 $4,084 Cash Paid: Cash paid reducing operating lease liabilities $4,275 $4,076 $3,888 (1) Included in net occupancy expenses in the Consolidated Statements of Income.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Carrying Value of Goodwill	The following table presents the carrying value of goodwill at the reporting unit (or business segment) level: (Dollars in thousands) December 31, 2023 2022 Commercial Banking Segment $22,591 $22,591 Wealth Management Services Segment 41,318 41,318 Total goodwill $63,909 $63,909
Schedule of Carrying Value of Other Intangible Assets	The following table presents the components of intangible assets: (Dollars in thousands) December 31, 2023 2022 Gross carrying amount $20,803 $20,803 Accumulated amortization 17,092 16,249 Net amount $3,711 $4,554
Schedule of Estimated Annual Amortization Expense	The following table presents estimated annual amortization expense for intangible assets at December 31, 2023: (Dollars in thousands) Years ending December 31, 2024 $826 2025 702 2026 476 2027 476 2028 476 2029 and thereafter 755

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivatives by Balance Sheet Location	The following table presents the notional amounts and fair values of derivative instruments in the Consolidated Balance Sheets: (Dollars in thousands) December 31, 2023 December 31, 2022 Fair Value Fair Value Notional Amounts Derivative Assets Derivative Liabilities Notional Amounts Derivative Assets Derivative Liabilities Derivatives Designated as Cash Flow Hedging Instruments: Interest rate risk management contracts: Interest rate swaps (1) $120,000 $802 $1,119 $320,000 $548 $31,178 Derivatives not Designated as Hedging Instruments: Loan related derivative contracts: Interest rate contracts with customers 938,872 6,594 52,102 935,099 32 68,137 Mirror interest rate contracts with counterparties 938,872 51,859 6,757 935,099 67,797 61 Risk participation agreements 321,055 66 1 282,191 — 2 Mortgage loan commitments: Interest rate lock commitments 20,980 504 1 12,201 144 4 Forward sale commitments 50,117 18 711 23,150 58 150 Gross amounts 59,843 60,691 68,579 99,532 Less: amounts offset (2) 7,877 7,877 23,524 23,524 Derivative balances, net of offset 51,966 52,814 45,055 76,008 Less: collateral pledged (3) — — — 7,716 Net amounts $51,966 $52,814 $45,055 $68,292 (1) The fair value of derivative assets includes accrued interest receivable of $239 thousand and $24 thousand, respectively, at December 31, 2023 and 2022. There was no accrued interest payable included in the fair value of derivative liabilities at December 31, 2023, compared to $856 thousand of accrued interest payable at December 31, 2022. (2) Interest rate risk management contracts and loan related derivative contracts with counterparties are subject to master netting arrangements. (3) Collateral contractually required to be pledged to derivative counterparties is in the form of cash. Washington Trust may need to post additional collateral in the future in proportion to potential increases in unrealized loss positions.
Derivative Instruments Effect in Statements of Income and Changes in Shareholders' Equity	The following table presents the effect of derivative instruments in the Consolidated Statements of Changes in Shareholders’ Equity: (Dollars in thousands) Gain (Loss) Recognized in Other Comprehensive Income, Net of Tax Years ended December 31, 2023 2022 2021 Derivatives Designated as Cash Flow Hedging Instruments: Interest rate risk management contracts: Interest rate swaps $7,026 ($18,632) ($2,566) Total $7,026 ($18,632) ($2,566) The following table presents the effect of derivative instruments in the Consolidated Statements of Income: (Dollars in thousands) Amount of Gain (Loss) Years ended December 31, Statement of Income Location 2023 2022 2021 Derivatives not Designated as Hedging Instruments: Loan related derivative contracts: Interest rate contracts with customers Loan related derivative income ($1,408) ($92,730) ($27,846) Mirror contracts with counterparties Loan related derivative income 3,211 94,759 31,547 Risk participation agreements Loan related derivative income (413) 727 641 Mortgage loan commitments: Interest rate lock commitments Mortgage banking revenues 363 (1,116) (5,947) Forward sale commitments Mortgage banking revenues 61 4,530 5,383 Total $1,814 $6,170 $3,778

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair value of Mortgage Loans Held for Sale	The following table presents a summary of mortgage loans held for sale accounted for under the fair value option: (Dollars in thousands) December 31, 2023 2022 Aggregate fair value $20,077 $8,987 Aggregate principal balance 19,480 8,860 Difference between fair value and principal balance $597 $127
Items Recorded at Fair Value on a Recurring Basis	The following tables present the balances of assets and liabilities reported at fair value on a recurring basis: (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2023 Assets: Available for sale debt securities: Obligations of U.S. government-sponsored enterprises $225,742 $— $225,742 $— Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 753,956 — 753,956 — Individual name issuer trust preferred debt securities 8,793 — 8,793 — Corporate bonds 11,889 — 11,889 — Mortgage loans held for sale 20,077 — 20,077 — Derivative assets 51,966 — 51,966 — Total assets at fair value on a recurring basis $1,072,423 $— $1,072,423 $— Liabilities: Derivative liabilities $ 52,814 $ — $ 52,814 $ — Total liabilities at fair value on a recurring basis $52,814 $— $52,814 $— (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2022 Assets: Available for sale debt securities: Obligations of U.S. government-sponsored enterprises $199,582 $— $199,582 $— Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises 774,102 — 774,102 — Individual name issuer trust preferred debt securities 8,760 — 8,760 — Corporate bonds 11,484 — 11,484 — Mortgage loans held for sale 8,987 — 8,987 — Derivative assets 45,055 — 45,055 — Total assets at fair value on a recurring basis $1,047,970 $— $1,047,970 $— Liabilities: Derivative liabilities $ 76,008 $ — $ 76,008 $ — Total liabilities at fair value on a recurring basis $76,008 $— $76,008 $—
Items Recorded at Fair Value on a Nonrecurring Basis	The following table presents the carrying value of assets held at December 31, 2023, which were written down to fair value during the twelve months ended December 31, 2023: (Dollars in thousands) Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Collateral dependent individually analyzed loans $8,050 $— $— $8,050 Loan servicing rights 8,512 — — 8,512 Total assets at fair value on a nonrecurring basis $16,562 $— $— $16,562
Qualitative Information About Level 3 Assets Measured at Fair Value on a Nonrecurring Basis	The following table presents valuation techniques and unobservable inputs for assets measured at fair value on a nonrecurring basis for which the Corporation has utilized Level 3 inputs to determine fair value: (Dollars in thousands) Fair Value Valuation Technique Unobservable Input Inputs Utilized December 31, 2023 Collateral dependent individually analyzed loans $8,050 Appraisals of collateral Discount for costs to sell 0% Appraisal adjustments 0% Loan servicing rights 8,512 Discounted Cash Flow Discount Rate 10% - 14% (10%) Prepayment rates 6% - 53% (9%)
Items for which Fair Value is Only Disclosed	The estimated fair values and related carrying amounts for financial instruments for which fair value is only disclosed are presented in the tables below: (Dollars in thousands) Carrying Amount Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2023 Financial Assets: Cash and cash equivalents $90,184 $90,184 $90,184 $— $— Loans, net of allowance for credit losses on loans 5,606,649 5,365,396 — — 5,365,396 FHLB stock 51,893 51,893 — 51,893 — Investment in BOLI 103,736 103,736 — 103,736 — Financial Liabilities: Non-maturity deposits $3,559,923 $3,559,923 $— $3,559,923 $— Time deposits 1,788,237 1,773,643 — 1,773,643 — FHLB advances 1,190,000 1,192,262 — 1,192,262 — Junior subordinated debentures 22,681 19,228 — 19,228 — (Dollars in thousands) Carrying Amount Total Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs December 31, 2022 Financial Assets: Cash and cash equivalents $118,422 $118,422 $118,422 $— $— Loans, net of allowance for credit losses on loans 5,072,112 4,929,449 — — 4,929,449 FHLB stock 43,463 43,463 — 43,463 — Investment in BOLI 102,182 102,182 — 102,182 — Financial Liabilities: Non-maturity deposits $3,896,080 $3,896,080 $— $3,896,080 $— Time deposits 1,122,882 1,137,219 — 1,137,219 — FHLB advances 980,000 978,590 — 978,590 — Junior subordinated debentures 22,681 18,963 — 18,963 —

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense	The following table presents the components of income tax expense (benefit): (Dollars in thousands) Years ended December 31, 2023 2022 2021 Current Tax Expense: Federal $10,494 $16,127 $17,032 State 1,501 2,202 2,130 Total current tax expense 11,995 18,329 19,162 Deferred Tax Expense (Benefit): Federal 412 1,012 1,822 State (4,102) 148 333 Total deferred tax expense (benefit) (3,690) 1,160 2,155 Total income tax expense $8,305 $19,489 $21,317
Schedule of Effective Income Tax Rate Reconciliation	The following table presents the reasons for the differences: Years ended December 31, 2023 2022 2021 (Dollars in thousands) Amount Rate Amount Rate Amount Rate Tax expense at Federal statutory rate $11,861 21.0 % $19,146 21.0 % $20,619 21.0 % Increase (decrease) in taxes resulting from: State income tax expense, net of federal tax benefit 1,107 2.0 1,856 2.1 1,943 2.0 Share-based compensation 29 0.1 (68) (0.1) (159) (0.2) Tax-exempt income, net (543) (1.0) (721) (0.8) (772) (0.8) Investments in low-income housing tax credits and other benefits, net (357) (0.6) (261) (0.3) (117) (0.1) BOLI (732) (1.3) (544) (0.6) (614) (0.6) State valuation allowance adjustment, net 2,153 3.8 — — — — State net operating loss carryforward, net of federal tax (1,312) (2.3) — — — — Adjustment to net deferred tax assets for enacted changes in state tax law (4,093) (7.2) — — — — Other 192 0.2 81 0.1 417 0.4 Total income tax expense $8,305 14.7 % $19,489 21.4 % $21,317 21.7 %
Schedule of Deferred Tax Assets and Liabilities	The following table presents the approximate tax effects of temporary differences that give rise to deferred tax assets and deferred tax liabilities: (Dollars in thousands) December 31, 2023 2022 Deferred Tax Assets: Net unrealized losses on available for sale debt securities $38,823 $41,379 Allowance for credit losses on loans 10,470 9,127 Operating lease liabilities 8,167 7,094 Deferred compensation 5,258 4,486 Cash flow hedges 5,250 7,151 Deferred loan origination fees 2,356 2,106 Share-based compensation 1,806 1,884 Defined benefit pension obligations 1,425 — State net operating loss carryforwards 1,312 — Other 2,094 1,809 Deferred tax assets 76,961 75,036 Less: valuation allowance (2,153) — Deferred tax assets, net of valuation allowance 74,808 75,036 Deferred Tax Liabilities: Operating lease ROU assets (7,488) (6,518) Deferred loan origination costs (7,365) (6,394) Loan servicing rights (2,171) (2,163) Depreciation of premises and equipment (1,897) (1,494) Amortization of intangibles (946) (1,093) Defined benefit pension obligations — (333) Other (1,133) (669) Deferred tax liabilities (21,000) (18,664) Net deferred tax asset $53,808 $56,372

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2023
Deposits [Abstract]
Summary of Deposits	The following table presents a summary of deposits: (Dollars in thousands) December 31, 2023 2022 Noninterest-bearing: Noninterest-bearing demand deposits $693,746 $858,953 Interest-bearing: Interest-bearing demand deposits (1) 504,959 333,197 NOW accounts 767,036 871,875 Money market accounts 1,096,959 1,255,805 Savings accounts 497,223 576,250 Time deposits (2) 1,788,237 1,122,882 Total interest-bearing deposits $4,654,414 $4,160,009 Total deposits $5,348,160 $5,018,962 (1) Includes wholesale brokered demand deposit balances of $0 and $31.2 million, respectively, as of December 31, 2023 and 2022. (2) Includes wholesale brokered time deposit balances of $654.1 million and $327.0 million, respectively, as of December 31, 2023 and 2022.
Schedule of Time Certificates of Deposit Maturities	The following table presents scheduled maturities of time certificates of deposit: (Dollars in thousands) Scheduled Maturity Weighted Average Rate Years ending December 31: 2024 $1,549,955 4.63 % 2025 149,532 3.38 2026 32,528 2.21 2027 30,585 3.16 2028 25,637 3.61 2029 and thereafter — — Balance at December 31, 2023 $1,788,237 4.44 %

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
FHLB Advances Maturity Summary	The following table presents maturities and weighted average interest rates on FHLB advances outstanding as of December 31, 2023: (Dollars in thousands) Scheduled Weighted 2024 $550,000 5.30 % 2025 305,000 4.94 2026 165,000 4.54 2027 45,000 4.24 2028 125,000 4.15 2029 and thereafter — — Total $1,190,000 4.94 %

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Schedule of Regulatory Capital Requirements	The following table presents the Corporation’s and the Bank’s actual capital amounts and ratios, as well as the corresponding minimum and well capitalized regulatory amounts and ratios that were in effect during the respective periods: (Dollars in thousands) Actual For Capital Adequacy To Be “Well Capitalized” Under Prompt Corrective Action Regulations Amount Ratio Amount Ratio Amount Ratio December 31, 2023 Total Capital (to Risk-Weighted Assets): Corporation $611,220 11.58 % $422,259 8.00 % N/A N/A Bank 605,289 11.47 422,131 8.00 $527,663 10.00 % Tier 1 Capital (to Risk-Weighted Assets): Corporation 572,960 10.86 316,694 6.00 N/A N/A Bank 567,029 10.75 316,598 6.00 422,131 8.00 Common Equity Tier 1 Capital (to Risk-Weighted Assets): Corporation 550,964 10.44 237,521 4.50 N/A N/A Bank 567,029 10.75 237,449 4.50 342,981 6.50 Tier 1 Capital (to Average Assets): (1) Corporation 572,960 7.80 293,837 4.00 N/A N/A Bank 567,029 7.72 293,742 4.00 367,177 5.00 December 31, 2022 Total Capital (to Risk-Weighted Assets): Corporation 605,005 12.37 391,363 8.00 N/A N/A Bank 588,090 12.02 391,260 8.00 489,074 10.00 Tier 1 Capital (to Risk-Weighted Assets): Corporation 571,794 11.69 293,522 6.00 N/A N/A Bank 554,879 11.35 293,445 6.00 391,260 8.00 Common Equity Tier 1 Capital (to Risk-Weighted Assets): Corporation 549,798 11.24 220,142 4.50 N/A N/A Bank 554,879 11.35 220,083 4.50 317,898 6.50 Tier 1 Capital (to Average Assets): (1) Corporation 571,794 8.65 264,295 4.00 N/A N/A Bank 554,879 8.40 264,177 4.00 330,222 5.00 (1) Leverage ratio.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	The following table summarizes total revenues as presented in the Consolidated Statements of Income and the related amounts that are from contracts with customers within the scope of ASC 606. As shown below, a substantial portion of our revenues are specifically excluded from the scope of ASC 606. Years ended December 31, 2023 2022 2021 (Dollars in thousands) Revenue (1) ASC 606 Revenue (2) Revenue (1) ASC 606 Revenue (2) Revenue (1) ASC 606 Revenue (2) Net interest income $137,098 $— $155,990 $— $141,435 $— Noninterest income: Wealth management revenues 35,540 35,540 38,746 38,746 41,282 41,282 Mortgage banking revenues 6,660 — 8,733 — 28,626 — Card interchange fees 4,921 4,921 4,996 4,996 4,996 4,996 Service charges on deposit accounts 2,806 2,806 3,192 3,192 2,683 2,683 Loan related derivative income 1,390 — 2,756 — 4,342 — Income from bank-owned life insurance 3,488 — 2,591 — 2,925 — Other income 1,335 1,226 1,588 1,219 2,540 2,148 Total noninterest income 56,140 44,493 62,602 48,153 87,394 51,109 Total revenues $193,238 $44,493 $218,592 $48,153 $228,829 $51,109 (1) As reported in the Consolidated Statements of Income. (2) Revenue from contracts with customers in scope of ASC 606. The following table presents revenue from contracts with customers segregated by revenue recognition timing: (Dollars in thousands) Years ended December 31, 2023 2022 2021 Revenue recognized at a point in time: Card interchange fees $4,921 $4,996 $4,996 Service charges on deposit accounts 1,842 2,512 2,136 Other income 983 967 1,931 Revenue recognized over time: Wealth management revenues 35,540 38,746 41,282 Service charges on deposit accounts 964 680 547 Other income 243 252 217 Total revenues from contracts with customers in scope of ASC 606 $44,493 $48,153 $51,109

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Schedule of Projected Benefit Obligations, Fair Value of Plan Assets and Funded (Unfunded) Status	The following table presents the plans’ projected benefit obligations, fair value of plan assets and funded (unfunded) status: (Dollars in thousands) Qualified Non-Qualified At December 31, 2023 2022 2023 2022 Change in Benefit Obligation: Benefit obligation at beginning of period $66,656 $89,408 $13,562 $17,717 Service cost 1,403 2,062 156 218 Interest cost 3,540 2,368 706 423 Actuarial (gain) loss 8,522 (23,658) (279) (3,880) Benefits paid (4,570) (3,422) (950) (916) Administrative expenses (267) (102) — — Benefit obligation at end of period 75,284 66,656 13,195 13,562 Change in Plan Assets: Fair value of plan assets at beginning of period 81,553 103,047 — — Actual return on plan assets 6,121 (17,970) — — Employer contributions — — 950 916 Benefits paid (4,570) (3,422) (950) (916) Administrative expenses (267) (102) — — Fair value of plan assets at end of period 82,837 81,553 — — Funded (unfunded) status at end of period (1) $7,553 $14,897 ($13,195) ($13,562) (1) Funded status of the qualified pension plan is included in other assets in the Consolidated Balance Sheets. Unfunded status of the non-qualified retirement plans is included in other liabilities in the Consolidated Balance Sheets.
Schedule of Components of Accumulated Other Comprehensive Income (Loss) Related to Retirements Plans	The following table presents the amounts included in AOCL related to the qualified pension plan and non-qualified retirement plans: (Dollars in thousands) Qualified Non-Qualified At December 31, 2023 2022 2023 2022 Net actuarial loss included in AOCL, pre-tax $8,837 $1,846 $2,939 $3,455
Schedule of Net Periodic Benefit Costs and Other Amounts Recognized in Other Comprehensive Income (Loss)	The following table presents components of net periodic benefit cost and other amounts recognized in other comprehensive income (loss), on a pre-tax basis: (Dollars in thousands) Qualified Non-Qualified Years ended December 31, 2023 2022 2021 2023 2022 2021 Net Periodic Benefit Cost: Service cost (1) $1,403 $2,062 $2,369 $156 $218 $208 Interest cost (2) 3,540 2,368 2,004 706 423 337 Expected return on plan assets (2) (4,590) (4,634) (4,815) — — — Recognized net actuarial loss (2) — 1,020 2,121 237 692 723 Net periodic benefit cost 353 816 1,679 1,099 1,333 1,268 Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (on a pre-tax basis): Net loss (gain) 6,991 (2,074) (8,132) (516) (4,572) (621) Recognized in other comprehensive income (loss) 6,991 (2,074) (8,132) (516) (4,572) (621) Total recognized in net periodic benefit cost and other comprehensive income (loss) $7,344 ($1,258) ($6,453) $583 ($3,239) $647 (1) Included in salaries and employee benefits expense in the Consolidated Statements of Income. (2) Included in other expenses in the Consolidated Statements of Income.
Schedule of Assumptions Used for Net Periodic Benefit Cost	The following table presents the measurement date and weighted-average assumptions used to determine benefit obligations at December 31, 2023 and 2022: Qualified Non-Qualified Retirement Plans 2023 2022 2023 2022 Measurement date Dec 31, 2023 Dec 31, 2022 Dec 31, 2023 Dec 31, 2022 Discount rate 4.51 % 5.54 % 5.10 % 5.50 % Rate of compensation increase 0.50 5.00 N/A 5.00 The following table presents the measurement date and weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31, 2023, 2022 and 2021: Qualified Pension Plan Non-Qualified Retirement Plans 2023 2022 2021 2023 2022 2021 Measurement date Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Equivalent single discount rate for benefit obligations 5.54 % 3.00 % 2.71 % 5.50 % 2.89 % 2.51 % Equivalent single discount rate for service cost 5.60 3.11 2.86 5.61 3.16 2.94 Equivalent single discount rate for interest cost 5.43 2.67 2.16 5.40 2.48 1.97 Expected long-term return on plan assets 5.25 5.25 5.75 N/A N/A N/A Rate of compensation increase 5.00 3.75 3.75 5.00 3.75 3.75
Schedule of Fair Value and Allocation of Plan Assets	The following tables present the fair values of the qualified pension plan’s assets: (Dollars in thousands) Fair Value Measurements Using Fair Value December 31, 2023 Level 1 Level 2 Level 3 Assets: Cash and cash equivalents $16,820 $— $— $16,820 Obligations of U.S. government-sponsored enterprises — 58,147 — 58,147 Obligations of states and political subdivisions — 1,459 — 1,459 Corporate bonds — 1,974 — 1,974 Mutual funds 4,437 — — 4,437 Total plan assets $21,257 $61,580 $— $82,837 (Dollars in thousands) Fair Value Measurements Using Fair Value December 31, 2022 Level 1 Level 2 Level 3 Assets: Cash and cash equivalents $8,438 $— $— $8,438 Obligations of U.S. government-sponsored enterprises — 42,601 — 42,601 Obligations of states and political subdivisions — 1,728 — 1,728 Corporate bonds — 4,854 — 4,854 Mutual funds 23,932 — — 23,932 Total plan assets $32,370 $49,183 $— $81,553 The following table presents the asset allocations of the qualified pension plan, by asset category: December 31, 2023 2022 Asset Category: Cash and cash equivalents 20.3 % 10.3 % Fixed income securities (1) 74.3 60.3 Mutual funds 5.4 29.4 Total 100.0 % 100.0 % (1) Includes obligations of U.S. government agencies and U.S. government-sponsored enterprises, obligations of states and political subdivisions and corporate bonds.
Schedule of Expected Future Benefit Payments	The following table presents the benefit payments, which reflect expected future service, as appropriate, expected to be paid: (Dollars in thousands) Qualified Non-Qualified Years ending December 31, 2024 $2,830 $859 2025 (1) 76,626 873 2026 — 918 2027 — 942 2028 — 934 2029 and thereafter — 4,749 (1) The expected benefit payments for the qualified pension plan in 2025 reflects the termination of the plan that is expected to be completed in 2025.

Share-Based Compensation Arra_2

Share-Based Compensation Arrangements (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Compensation Cost for Share-based Compensation Arrangements	The following table presents share-based compensation expense and the related income tax benefits recognized in the Consolidated Statements of Income for stock options, restricted stock units and performance share units: (Dollars in thousands) Years ended December 31, 2023 2022 2021 Share-based compensation expense $2,064 $3,247 $3,316 Related income tax benefits (1) $492 $857 $978 (1) Includes $34 thousand of excess tax expense recognized upon the settlement of share-based compensation awards in 2023, compared to $78 thousand and $182 thousand, respectively, of excess tax benefits in 2022 and 2021.
Stock Options Fair Value Assumptions	The following presents the assumptions used in determining the grant date fair value of the stock option awards granted to certain key employees: 2023 2022 2021 Options granted 49,000 57,700 53,700 Cliff vesting period (years) 3 3 3 Expected term (years) 6.5 6.5 6.5 Expected dividend yield 4.38 % 3.90 % 3.80 % Weighted average expected volatility 33.15 % 31.67 % 31.50 % Weighted average risk-free interest rate 4.85 % 4.15 % 1.41 % Weighted average grant-date fair value $6.71 $12.01 $11.10
Stock Options Activity	The following table presents a summary of stock options outstanding as of and for the year ended December 31, 2023: Number of Stock Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000’s) Options outstanding at beginning of period 371,890 $46.67 Granted 49,000 26.42 Exercised — — Forfeited or expired (11,033) 36.53 Options outstanding at end of period 409,857 $44.52 6.34 $303 Options exercisable at end of period 253,257 $45.09 4.83 $11
Schedule of Stock Options Outstanding and Options Exercisable	The following table presents additional information concerning options outstanding and options exercisable at December 31, 2023: Options Outstanding Options Exercisable Exercise Price Ranges Number of Weighted Average Weighted Average Number of Shares Weighted Average $20.01 to $30.00 49,000 9.80 $26.42 — $— $30.01 to $40.00 90,287 5.69 33.21 90,287 33.21 $40.01 to $50.00 133,528 6.47 47.44 77,728 46.68 $50.01 to $60.00 137,042 5.42 55.60 85,242 56.22 Total 409,857 6.34 $44.52 253,257 $45.09
Restricted Stock Units Activity	The following table presents a summary of restricted stock units as of and for the year ended December 31, 2023: Number of Shares Weighted Average Grant Date Fair Value Beginning of period 65,312 $45.51 Granted 30,862 31.04 Vested (26,711) 37.07 Forfeited (1,289) 48.43 End of period 68,174 $42.21
Performance Share Units Outstanding	The following table presents a summary of outstanding performance share units as of December 31, 2023: Grant Date Fair Value per Share Weighted Average Current Performance Assumption Expected Number of Shares Performance share units awarded in: 2023 $47.35 110% 47,520 2022 59.31 100% 27,100 2021 46.15 70% 22,652 Total 97,272
Performance Share Units Activity	The following table presents a summary of performance share units as of and for the year ended December 31, 2023: Number of Shares Weighted Average Grant Date Fair Value Beginning of period 144,938 $45.41 Granted 47,520 47.35 Vested (48,010) 37.37 Forfeited (1) (47,176) 45.25 End of period 97,272 $50.40 (1) The number of forfeited shares also includes adjustments made to performance measure estimates on outstanding awards that have not yet vested.

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Statement of Operations and Total Assets by Reportable Segment	The following tables present the statement of operations and total assets for Washington Trust’s reportable business segments. (Dollars in thousands) Year ended December 31, 2023 Commercial Wealth Consolidated Net interest income $137,061 $37 $137,098 Provision for credit losses 3,200 — 3,200 Net interest income after provision for credit losses 133,861 37 133,898 Noninterest income 20,006 36,134 56,140 Noninterest expenses: Depreciation and amortization expense 3,460 1,388 4,848 Other noninterest expenses 99,506 29,203 128,709 Total noninterest expenses 102,966 30,591 133,557 Income before income taxes 50,901 5,580 56,481 Income tax expense 7,028 1,277 8,305 Net income $43,873 $4,303 $48,176 Total assets at period end $7,146,096 $56,751 $7,202,847 Expenditures for long-lived assets 5,013 35 5,048 (Dollars in thousands) Year ended December 31, 2022 Commercial Wealth Consolidated Net interest income (expense) $156,040 ($50) $155,990 Provision for credit losses (1,300) — (1,300) Net interest income (expense) after provision for credit losses 157,340 (50) 157,290 Noninterest income 23,088 39,514 62,602 Noninterest expenses: Depreciation and amortization expense 2,948 1,377 4,325 Other noninterest expenses 94,025 30,372 124,397 Total noninterest expenses 96,973 31,749 128,722 Income before income taxes 83,455 7,715 91,170 Income tax expense 17,557 1,932 19,489 Net income $65,898 $5,783 $71,681 Total assets at period end $6,585,310 $74,741 $6,660,051 Expenditures for long-lived assets 5,475 664 6,139 (Dollars in thousands) Year ended December 31, 2021 Commercial Wealth Consolidated Net interest income (expense) $141,493 ($58) $141,435 Provision for credit losses (4,822) — (4,822) Net interest income (expense) after provision for credit losses 146,315 (58) 146,257 Noninterest income 44,748 42,646 87,394 Noninterest expenses: Depreciation and amortization expense 2,827 1,474 4,301 Other noninterest expenses 101,029 30,134 131,163 Total noninterest expenses 103,856 31,608 135,464 Income before income taxes 87,207 10,980 98,187 Income tax expense 18,575 2,742 21,317 Net income $68,632 $8,238 $76,870 Total assets at period end $5,776,754 $74,373 $5,851,127 Expenditures for long-lived assets 3,246 244 3,490

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Activity in Other Comprehensive Income (Loss)	The following tables present the activity in other comprehensive income (loss): (Dollars in thousands) Year ended December 31, 2023 Pre-tax Amounts Income Tax Benefit (Expense) Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities $20,163 ($5,721) $14,442 Cash Flow Hedges: Changes in fair value of cash flow hedges 1,647 (346) 1,301 Net cash flow hedge losses reclassified into earnings (1) 7,563 (1,838) 5,725 Net change in the fair value of cash flow hedges 9,210 (2,184) 7,026 Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment (6,712) 1,712 (5,000) Amortization of net actuarial losses (2) 237 (58) 179 Net change in defined benefit plan obligations (6,475) 1,654 (4,821) Total other comprehensive income $22,898 ($6,251) $16,647 (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $9.2 million reduction in interest and fees on loans and a $1.7 million reduction in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income. (Dollars in thousands) Year ended December 31, 2022 Pre-tax Amounts Income Tax Benefit (Expense) Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities ($163,471) $39,233 ($124,238) Cash Flow Hedges: Changes in fair value of cash flow hedges (27,344) 6,563 (20,781) Net cash flow hedge losses reclassified into earnings (1) 2,828 (679) 2,149 Net change in the fair value of cash flow hedges (24,516) 5,884 (18,632) Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment 4,934 (1,184) 3,750 Amortization of net actuarial losses (2) 1,712 (411) 1,301 Net change in defined benefit plan obligations 6,646 (1,595) 5,051 Total other comprehensive loss ($181,341) $43,522 ($137,819) (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $2.8 million reduction in interest and fees on loans and a $70 thousand increase in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income. (Dollars in thousands) Year ended December 31, 2021 Pre-tax Amounts Income Tax (Expense)Benefit Net of Tax Available for Sale Debt Securities: Changes in fair value of available for sale debt securities ($21,942) $5,266 ($16,676) Cash Flow Hedges: Changes in fair value of cash flow hedges (3,067) 736 (2,331) Net cash flow hedge gains reclassified into earnings (1) (310) 75 (235) Net change in the fair value of cash flow hedges (3,377) 811 (2,566) Defined Benefit Plan Obligations: Defined benefit plan obligation adjustment 5,908 (1,417) 4,491 Amortization of net actuarial losses (2) 2,844 (683) 2,161 Net change in defined benefit plan obligations 8,752 (2,100) 6,652 Total other comprehensive loss ($16,567) $3,977 ($12,590) (1) The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $1.5 million increase in interest and fees on loans and a $1.1 million increase in FHLB interest expense. (2) The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income.
Changes in Components of Accumulated Other Comprehensive Income (Loss)	The following tables present the changes in AOCI (AOCL) by component, net of tax: (Dollars in thousands) Net Unrealized Losses on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2022 ($131,033) ($22,645) ($4,122) ($157,800) Other comprehensive income (loss) before reclassifications 14,442 1,301 (5,000) 10,743 Amounts reclassified from accumulated other comprehensive income (loss) — 5,725 179 5,904 Net other comprehensive income (loss) 14,442 7,026 (4,821) 16,647 Balance at December 31, 2023 ($116,591) ($15,619) ($8,943) ($141,153) (Dollars in thousands) Net Unrealized Losses on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2021 ($6,795) ($4,013) ($9,173) ($19,981) Other comprehensive (loss) income before reclassifications (124,238) (20,781) 3,750 (141,269) Amounts reclassified from accumulated other comprehensive (loss) income — 2,149 1,301 3,450 Net other comprehensive (loss) income (124,238) (18,632) 5,051 (137,819) Balance at December 31, 2022 ($131,033) ($22,645) ($4,122) ($157,800) (Dollars in thousands) Net Unrealized Gains (Losses)on Available for Sale Debt Securities Net Unrealized Losses on Cash Flow Hedges Net Unrealized Losses on Defined Benefit Plan Obligations Total Balance at December 31, 2020 $9,881 ($1,447) ($15,825) ($7,391) Other comprehensive (loss) income before reclassifications (16,676) (2,331) 4,491 (14,516) Amounts reclassified from accumulated other comprehensive (loss) income — (235) 2,161 1,926 Net other comprehensive (loss) income (16,676) (2,566) 6,652 (12,590) Balance at December 31, 2021 ($6,795) ($4,013) ($9,173) ($19,981)

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Calculation of Earnings Per Common Share	The following table presents the calculation of EPS: (Dollars and shares in thousands, except per share amounts) Years ended December 31, 2023 2022 2021 Earnings per basic and diluted earnings per common share: Net income $48,176 $71,681 $76,870 Less: dividends and undistributed earnings allocated to participating securities (85) (202) (223) Net income available to common shareholders $48,091 $71,479 $76,647 Shares: Weighted average common shares outstanding for basic EPS 17,033 17,246 17,310 Dilutive effect of common stock equivalents 29 135 145 Weighted average common shares outstanding for diluted EPS 17,062 17,381 17,455 EPS: Basic EPS $2.82 $4.14 $4.43 Diluted EPS $2.82 $4.11 $4.39

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Financial Instruments with Off Balance Sheet Risk	The following table presents the contractual and notional amounts of financial instruments with off-balance sheet risk: (Dollars in thousands) December 31, 2023 2022 Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $1,185,196 $1,308,873 Standby letters of credit 9,323 9,028
Allowance for Credit Losses on Unfunded Commitments	The activity in the ACL on unfunded commitments for the year ended December 31, 2023 is presented below: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $1,236 $988 $2,224 $50 $— $16 $16 $2,290 Provision (145) (166) (311) (35) — (4) (4) (350) Ending Balance $1,091 $822 $1,913 $15 $— $12 $12 $1,940 The activity in the ACL on unfunded commitments for the year ended December 31, 2022 is presented below: (Dollars in thousands) Commercial Consumer CRE C&I Total Commercial Residential Real Estate Home Equity Other Total Consumer Total Beginning Balance $1,267 $816 $2,083 $62 $— $16 $16 $2,161 Provision (31) 172 141 (12) — — — 129 Ending Balance $1,236 $988 $2,224 $50 $— $16 $16 $2,290

Parent Company Financial Stat_2

Parent Company Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Balance Sheet	The following tables present parent company only condensed financial statements of the Bancorp, reflecting the investment in the Bank on the equity basis of accounting. The Statements of Changes in Shareholders’ Equity for the parent company only are identical to the Consolidated Statements of Changes in Shareholders’ Equity and are therefore not presented. Balance Sheets (Dollars in thousands) December 31, 2023 2022 Assets: Cash on deposit with bank subsidiary $4,701 $15,557 Investment in subsidiaries at equity value: Bank 488,751 458,750 Non-bank 685 685 Dividends receivable from bank subsidiary 9,925 10,578 Other assets 1,603 1,293 Total assets $505,665 $486,863 Liabilities and Shareholders’ Equity: Junior subordinated debentures $22,681 $22,681 Dividends payable 10,021 10,349 Other liabilities 277 164 Shareholders’ equity 472,686 453,669 Total liabilities and shareholders’ equity $505,665 $486,863
Parent Company Only Income Statement	Statements of Income (Dollars in thousands) Years ended December 31, 2023 2022 2021 Income: Dividends from subsidiaries: Bank $38,822 $53,240 $45,732 Non-bank 46 20 11 Other losses (300) — (102) Total income 38,568 53,260 45,641 Expenses: Interest on junior subordinated debentures 1,543 739 370 Other expenses 681 591 622 Total expenses 2,224 1,330 992 Income before income taxes 36,344 51,930 44,649 Income tax benefit 542 273 230 Income before equity in undistributed earnings (losses) of subsidiaries 36,886 52,203 44,879 Equity in undistributed earnings (losses) of subsidiaries: Bank 11,290 19,565 32,045 Non-bank — (87) (54) Net income $48,176 $71,681 $76,870
Parent Company Only Cash Flow Statement	Statements of Cash Flows (Dollars in thousands) Years ended December 31, 2023 2022 2021 Cash flows from operating activities: Net income $48,176 $71,681 $76,870 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed (earnings) losses of subsidiaries: Bank (11,290) (19,565) (32,045) Non-bank — 87 54 Tax (expense) benefit from stock option exercises and other equity awards (34) 78 182 Deferred income tax (benefit) expense (56) 5 (24) Decrease (increase) in dividend receivable 653 2,386 (1,128) Decrease (increase) in other assets 8 (175) 50 Increase in accrued expenses and other liabilities 113 93 31 Other, net 36 (97) (182) Net cash provided by operating activities 37,606 54,493 43,808 Cash flows from investing activities: Repayment of equity investment in subsidiary — 1,096 — Purchases of other equity investments, net (263) (375) (650) Net cash (used in) provided by investing activities (263) 721 (650) Cash flows from financing activities: Treasury stock purchased (8,814) (9,479) — Net proceeds from stock option exercises and issuance of other equity awards, net of awards surrendered (754) (821) (177) Cash dividends paid (38,631) (37,647) (36,349) Net cash used in financing activities (48,199) (47,947) (36,526) Net (decrease) increase in cash (10,856) 7,267 6,632 Cash at beginning of year 15,557 8,290 1,658 Cash at end of year $4,701 $15,557 $8,290

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Line Items]
Interest-bearing deposits held at correspondent banks	$ 74.5	$ 65.8
Federal Home Loan Bank Stock, redemption period, years after membership termination	5 years
Premises and Improvements [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life (in years)	5 years
Premises and Improvements [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life (in years)	40 years
Furniture, Fixtures and Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life (in years)	3 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life (in years)	20 years

Securities (Narrative) (Details

Securities (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Accrued interest receivable	$ 3,700	$ 3,100
Available for sale debt securities, fair value	1,000,380	$ 993,928
Amortized cost of callable debt securities	253,000
Fair value of callable debt securities	$ 226,500
Number of securities in an unrealized loss position | security	190	190
Asset Pledged as Collateral
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, fair value	$ 311,900	$ 294,800
Minimum [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Callable debt securities, maturity period	6 months
Callable debt securities, call feature period	1 month
Maximum [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Callable debt securities, maturity period	13 years
Callable debt securities, call feature period	7 months
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, fair value	$ 8,793	$ 8,760
Number of securities in an unrealized loss position | security	3	3
Number of companies issuing securities in continuous unrealized loss position | security	3
Number of debt securities below investment grade | security	1
Amortized cost of securities below investment grade	$ 2,000
Unrealized losses on securities below investment grade	(228)
Corporate bonds
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, fair value	$ 11,889	$ 11,484
Number of securities in an unrealized loss position | security	4	4
Number of companies issuing securities in continuous unrealized loss position | security	3
Number of debt securities below investment grade | security	1
Amortized cost of securities below investment grade	$ 2,000
Unrealized losses on securities below investment grade	$ (102)

Securities (Summary of Investme

Securities (Summary of Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	$ 1,152,629	$ 1,166,340
Available for sale debt securities, unrealized gains	261	270
Available for sale debt securities, unrealized losses	(152,510)	(172,682)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	1,000,380	993,928
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	250,450	231,203
Available for sale debt securities, unrealized gains	15	1
Available for sale debt securities, unrealized losses	(24,723)	(31,622)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	225,742	199,582
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	879,597	912,581
Available for sale debt securities, unrealized gains	246	269
Available for sale debt securities, unrealized losses	(125,887)	(138,748)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	753,956	774,102
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	9,400	9,387
Available for sale debt securities, unrealized gains	0	0
Available for sale debt securities, unrealized losses	(607)	(627)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	8,793	8,760
Corporate bonds
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	13,182	13,169
Available for sale debt securities, unrealized gains	0	0
Available for sale debt securities, unrealized losses	(1,293)	(1,685)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	$ 11,889	$ 11,484

Securities (Securities by Contr

Securities (Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	$ 86,534
Available for sale debt securities maturities 1-5 years amortized cost	475,831
Available for sale debt securities maturities 5-10 years amortized cost	308,465
Available for sale debt securities maturities after 10 years amortized cost	281,799
Available for sale debt securities, amortized cost	1,152,629	$ 1,166,340
Available for sale debt securities maturities within 1 year fair value	74,195
Available for sale debt securities maturities 1-5 years fair value	416,771
Available for sale debt securities maturities 5-10 years fair value	267,513
Available for sale debt securities maturities after 10 years fair value	241,901
Available for sale debt securities, fair value	$ 1,000,380	$ 993,928

Securities (Securities in a Con

Securities (Securities in a Continuous Unrealized Loss Position) (Details) $ in Thousands	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-Sale [Line Items]
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security	9	99
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, fair value	$ 63,711	$ 308,892
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, unrealized losses	$ (438)	$ (25,598)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security	181	91
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities, fair value	$ 914,700	$ 661,065
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (152,072)	$ (147,084)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security	190	190
Available for sale debt securities, securities in continuous unrealized loss position, fair value	$ 978,411	$ 969,957
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (152,510)	$ (172,682)
Obligations of U.S. government-sponsored enterprises [Member]
Debt Securities, Available-for-Sale [Line Items]
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security	1	4
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, fair value	$ 19,824	$ 20,115
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, unrealized losses	$ (176)	$ (638)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security	20	18
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities, fair value	$ 195,903	$ 169,466
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (24,547)	$ (30,984)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security	21	22
Available for sale debt securities, securities in continuous unrealized loss position, fair value	$ 215,727	$ 189,581
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (24,723)	$ (31,622)
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Debt Securities, Available-for-Sale [Line Items]
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security	8	95
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, fair value	$ 43,887	$ 288,777
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, unrealized losses	$ (262)	$ (24,960)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security	154	66
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities, fair value	$ 698,115	$ 471,355
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (125,625)	$ (113,788)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security	162	161
Available for sale debt securities, securities in continuous unrealized loss position, fair value	$ 742,002	$ 760,132
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (125,887)	$ (138,748)
Individual name issuer trust preferred debt securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security	0	0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, fair value	$ 0	$ 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, unrealized losses	$ 0	$ 0
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security	3	3
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities, fair value	$ 8,793	$ 8,760
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (607)	$ (627)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security	3	3
Available for sale debt securities, securities in continuous unrealized loss position, fair value	$ 8,793	$ 8,760
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (607)	$ (627)
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security	0	0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, fair value	$ 0	$ 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities, unrealized losses	$ 0	$ 0
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security	4	4
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities, fair value	$ 11,889	$ 11,484
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (1,293)	$ (1,685)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security	4	4
Available for sale debt securities, securities in continuous unrealized loss position, fair value	$ 11,889	$ 11,484
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses	$ (1,293)	$ (1,685)

Loans (Narrative) (Details)

Loans (Narrative) (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Net unamortized loan origination costs		$ 13,000	$ 11,600
Net unamortized premiums on purchased loans		286	318
Accrued interest receivable		22,900	17,600
Total loans	[1]	5,647,706	5,110,139
Nonaccrual loans included in past due loans		6,900	7,200
Nonaccrual loans current on payment		37,700	5,700
Residential loans in process of foreclosure		960	2,900
Individually analyzed loans		$ 34,600	$ 10,000
Number of loans modified			3
Payment Default [Member]
Number of loans modified		0	0
Asset Pledged as Collateral
Total loans		$ 3,400,000	$ 2,400,000
Collateral Dependent Individually Analyzed [Member]
Total loans		$ 34,640	$ 8,455
[1] Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022.

Loans (Summary of Loans) (Detai

Loans (Summary of Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[1]	$ 5,647,706	$ 5,110,139
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[2]	2,106,359	1,829,304
Commercial & Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[3]	605,072	656,397
Total Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		2,711,431	2,485,701
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[4]	2,604,478	2,323,002
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		312,594	285,715
Other Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[5]	19,203	15,721
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		$ 331,797	$ 301,436
[1] Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022. CRE consists of commercial mortgages primarily secured by income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings. C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate.

Loans (Past Due Loans) (Details

Loans (Past Due Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Current		$ 5,636,361	$ 5,098,561
Total loans	[1]	5,647,706	5,110,139
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Current		2,106,359	1,828,117
Total loans	[2]	2,106,359	1,829,304
Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Current		605,062	656,132
Total loans	[3]	605,072	656,397
Total Commercial
Financing Receivable, Past Due [Line Items]
Current		2,711,421	2,484,249
Total loans		2,711,431	2,485,701
Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current		2,596,362	2,314,127
Total loans	[4]	2,604,478	2,323,002
Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Current		309,398	284,480
Total loans		312,594	285,715
Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Current		19,180	15,705
Total loans	[5]	19,203	15,721
Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Current		328,578	300,185
Total loans		331,797	301,436
30-59
Financing Receivable, Past Due [Line Items]
Past due		6,748	7,364
30-59 | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Past due		0	1,187
30-59 | Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Past due		10	265
30-59 | Total Commercial
Financing Receivable, Past Due [Line Items]
Past due		10	1,452
30-59 | Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Past due		4,369	4,793
30-59 | Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Past due		2,349	1,103
30-59 | Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		20	16
30-59 | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		2,369	1,119
60-89
Financing Receivable, Past Due [Line Items]
Past due		1,853	435
60-89 | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Past due		0	0
60-89 | Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Past due		0	0
60-89 | Total Commercial
Financing Receivable, Past Due [Line Items]
Past due		0	0
60-89 | Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Past due		1,738	303
60-89 | Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Past due		112	132
60-89 | Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		3	0
60-89 | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		115	132
Over 90
Financing Receivable, Past Due [Line Items]
Past due		2,744	3,779
Over 90 | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Past due		0	0
Over 90 | Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Past due		0	0
Over 90 | Total Commercial
Financing Receivable, Past Due [Line Items]
Past due		0	0
Over 90 | Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Past due		2,009	3,779
Over 90 | Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Past due		735	0
Over 90 | Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		0	0
Over 90 | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		735	0
Total Past Due
Financing Receivable, Past Due [Line Items]
Past due		11,345	11,578
Total Past Due | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Past due		0	1,187
Total Past Due | Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Past due		10	265
Total Past Due | Total Commercial
Financing Receivable, Past Due [Line Items]
Past due		10	1,452
Total Past Due | Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Past due		8,116	8,875
Total Past Due | Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Past due		3,196	1,235
Total Past Due | Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		23	16
Total Past Due | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Past due		$ 3,219	$ 1,251
[1] Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022. CRE consists of commercial mortgages primarily secured by income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings. C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate.

Loans (Nonaccrual Loans) (Detai

Loans (Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	$ 20,975	$ 6,369
Nonaccrual loans, no ACL deemed necessary	23,643	6,477
Nonaccrual loans	44,618	12,846
Accruing loans 90 days or more past due	0	0
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	10,997	0
Nonaccrual loans, no ACL deemed necessary	21,830	0
Nonaccrual loans	32,827	0
Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	0	0
Nonaccrual loans, no ACL deemed necessary	682	0
Nonaccrual loans	682	0
Total Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	10,997	0
Nonaccrual loans, no ACL deemed necessary	22,512	0
Nonaccrual loans	33,509	0
Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	8,495	6,009
Nonaccrual loans, no ACL deemed necessary	1,131	5,885
Nonaccrual loans	9,626	11,894
Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	1,483	360
Nonaccrual loans, no ACL deemed necessary	0	592
Nonaccrual loans	1,483	952
Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	0	0
Nonaccrual loans, no ACL deemed necessary	0	0
Nonaccrual loans	0	0
Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with an ACL	1,483	360
Nonaccrual loans, no ACL deemed necessary	0	592
Nonaccrual loans	$ 1,483	$ 952

Loans (Interest Income on Nonac

Loans (Interest Income on Nonaccrual Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Interest income recognized on nonaccrual loans	$ 3,355	$ 463
Commercial Real Estate
Interest income recognized on nonaccrual loans	2,719	0
Commercial & Industrial
Interest income recognized on nonaccrual loans	59	0
Total Commercial
Interest income recognized on nonaccrual loans	2,778	0
Residential Real Estate [Member]
Interest income recognized on nonaccrual loans	466	398
Home Equity [Member]
Interest income recognized on nonaccrual loans	107	62
Other Consumer [Member]
Interest income recognized on nonaccrual loans	4	3
Total Consumer [Member]
Interest income recognized on nonaccrual loans	$ 111	$ 65

Loans (TLMs Carrying Value by T

Loans (TLMs Carrying Value by Type of Mod) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 21,830
Period end TLM balance as a percentage of period end total loan balance	0%	[1]
Maturity Extension
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 13,780
Combination
Financing Receivable, Modified [Line Items]
TLM, carrying value	8,050	[2]
Commercial Real Estate
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 21,830
Period end TLM balance as a percentage of period end total loan balance	1%	[1]
Commercial Real Estate | Maturity Extension
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 13,780
Commercial Real Estate | Combination
Financing Receivable, Modified [Line Items]
TLM, carrying value	8,050	[2]
Commercial & Industrial
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 0
Period end TLM balance as a percentage of period end total loan balance	0%	[1]
Commercial & Industrial | Maturity Extension
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 0
Commercial & Industrial | Combination
Financing Receivable, Modified [Line Items]
TLM, carrying value	0	[2]
Total Commercial
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 21,830
Period end TLM balance as a percentage of period end total loan balance	1%	[1]
Total Commercial | Maturity Extension
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 13,780
Total Commercial | Combination
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 8,050	[2]
[1] Percentage of TLMs to the total loans outstanding within the respective loan class. Combination includes an interest rate reduction, payment deferral and maturity extension.

Loans (TLMs Financial Impact by

Loans (TLMs Financial Impact by Type of Mod) (Details)	12 Months Ended
	Dec. 31, 2023
Financing Receivable, Modified [Line Items]
Weighted Average Interest Rate Reduction	3%
Weighted Average Maturity Extension (in months)	10 months
Weighted Average Other-than-Insignificant Payment Delay (in months)	12 months
Commercial Real Estate
Financing Receivable, Modified [Line Items]
Weighted Average Interest Rate Reduction	3%
Weighted Average Maturity Extension (in months)	10 months
Weighted Average Other-than-Insignificant Payment Delay (in months)	12 months
Commercial & Industrial
Financing Receivable, Modified [Line Items]
Weighted Average Interest Rate Reduction	0%
Weighted Average Maturity Extension (in months)	0 months
Weighted Average Other-than-Insignificant Payment Delay (in months)	0 months
Total Commercial
Financing Receivable, Modified [Line Items]
Weighted Average Interest Rate Reduction	3%
Weighted Average Maturity Extension (in months)	10 months
Weighted Average Other-than-Insignificant Payment Delay (in months)	12 months

Loans (Past Due TLMs) (Details)

Loans (Past Due TLMs) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 21,830
30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Current
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,830
Commercial Real Estate
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,830
Commercial Real Estate | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial Real Estate | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial Real Estate | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial Real Estate | Total Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial Real Estate | Current
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,830
Commercial & Industrial
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial & Industrial | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial & Industrial | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial & Industrial | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial & Industrial | Total Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Commercial & Industrial | Current
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Commercial
Financing Receivable, Modified [Line Items]
TLM, carrying value	21,830
Total Commercial | 30-59
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Commercial | 60-89
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Commercial | Over 90
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Commercial | Total Past Due
Financing Receivable, Modified [Line Items]
TLM, carrying value	0
Total Commercial | Current
Financing Receivable, Modified [Line Items]
TLM, carrying value	$ 21,830

Loans (TDRs) (Details)

Loans (TDRs) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Recorded investment	$ 8,644
Specific reserves on troubled debt restructurings	115
Additional commitments to lend to borrowers with TDRs	0
Accruing
Recorded investment	3,571
Nonaccrual
Recorded investment	$ 5,073

Loans (TDR Modifications) (Deta

Loans (TDR Modifications) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Number of loans modified	3
Pre-Modification Recorded Investment	$ 1,687
Post-Modification Recorded Investment	$ 1,687
Commercial Real Estate
Number of loans modified	0
Pre-Modification Recorded Investment	$ 0
Post-Modification Recorded Investment	$ 0
Commercial & Industrial
Number of loans modified	3
Pre-Modification Recorded Investment	$ 1,687
Post-Modification Recorded Investment	$ 1,687
Total Commercial
Number of loans modified	3
Pre-Modification Recorded Investment	$ 1,687
Post-Modification Recorded Investment	$ 1,687

Loans (TDRs Type of Modificatio

Loans (TDRs Type of Modifications) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Pre-Modification Recorded Investment	$ 1,687
Below market interest rate concession [Member]
Pre-Modification Recorded Investment	0
Payment Deferral [Member]
Pre-Modification Recorded Investment	0
Maturity / amortization concession [Member]
Pre-Modification Recorded Investment	0
Interest only payments [Member]
Pre-Modification Recorded Investment	0
Combination
Pre-Modification Recorded Investment	$ 1,687	[1]
[1]Loans included in this classification were modified with a combination of any two of the concessions listed in this table.

Loans (TDRs Payment Defaults) (

Loans (TDRs Payment Defaults) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Number of loans modified		3
Payment Default [Member]
Number of loans modified	0	0

Loans (Collateral dependent ind

Loans (Collateral dependent individually analyzed loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Total loans	[1]	$ 5,647,706	$ 5,110,139
Commercial Real Estate
Total loans	[2]	2,106,359	1,829,304
Commercial & Industrial
Total loans	[3]	605,072	656,397
Total Commercial
Total loans		2,711,431	2,485,701
Residential Real Estate [Member]
Total loans	[4]	2,604,478	2,323,002
Home Equity [Member]
Total loans		312,594	285,715
Other Consumer [Member]
Total loans	[5]	19,203	15,721
Total Consumer [Member]
Total loans		331,797	301,436
Collateral Dependent Individually Analyzed [Member]
Total loans		34,640	8,455
Related allowance on individually analyzed loans		97	0
Collateral Dependent Individually Analyzed [Member] | Commercial Real Estate
Total loans	[6]	32,827	2,103
Related allowance on individually analyzed loans	[6]	97	0
Collateral Dependent Individually Analyzed [Member] | Commercial & Industrial
Total loans	[7]	682	0
Related allowance on individually analyzed loans	[7]	0	0
Collateral Dependent Individually Analyzed [Member] | Total Commercial
Total loans		33,509	2,103
Related allowance on individually analyzed loans		97	0
Collateral Dependent Individually Analyzed [Member] | Residential Real Estate [Member]
Total loans	[8]	1,131	5,760
Related allowance on individually analyzed loans	[8]	0	0
Collateral Dependent Individually Analyzed [Member] | Home Equity [Member]
Total loans	[8]	0	592
Related allowance on individually analyzed loans	[8]	0	0
Collateral Dependent Individually Analyzed [Member] | Other Consumer [Member]
Total loans		0	0
Related allowance on individually analyzed loans		0	0
Collateral Dependent Individually Analyzed [Member] | Total Consumer [Member]
Total loans		0	592
Related allowance on individually analyzed loans		$ 0	$ 0
[1] Includes net unamortized loan origination costs of $13.0 million and $11.6 million, respectively, at December 31, 2023 and 2022 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $286 thousand and $318 thousand, respectively, at December 31, 2023 and 2022. CRE consists of commercial mortgages primarily secured by income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings. C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate.

Loans (Credit Quality Indicator

Loans (Credit Quality Indicators Vintage) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Term loans amortized cost, current fiscal year	$ 878,981	$ 1,616,371
Term loans amortized cost, one year before current fiscal year	1,551,627	1,189,746
Term loans amortized cost, two years before current fiscal year	1,144,330	532,413
Term loans amortized cost, three years before current fiscal year	478,623	407,075
Term loans amortized cost, four years before current fiscal year	372,009	341,778
Term loans amortized cost, five years or more before current fiscal year	831,226	675,484
Revolving loans amortized cost	375,764	335,300
Revolving loans converted to term loans	15,146	11,972
Total	5,647,706	5,110,139
Gross charge-offs, current year	196
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	8
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	373
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	577
Commercial Real Estate
Term loans amortized cost, current fiscal year	348,969	612,175
Term loans amortized cost, one year before current fiscal year	598,946	405,386
Term loans amortized cost, two years before current fiscal year	414,898	178,117
Term loans amortized cost, three years before current fiscal year	168,451	194,529
Term loans amortized cost, four years before current fiscal year	181,982	178,234
Term loans amortized cost, five years or more before current fiscal year	349,986	253,037
Revolving loans amortized cost	42,095	6,389
Revolving loans converted to term loans	1,032	1,437
Total	2,106,359	1,829,304
Gross charge-offs, current year	0
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	0
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	373
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	373
Commercial Real Estate | Pass
Term loans amortized cost, current fiscal year	327,139	591,596
Term loans amortized cost, one year before current fiscal year	598,946	383,062
Term loans amortized cost, two years before current fiscal year	396,468	177,286
Term loans amortized cost, three years before current fiscal year	168,451	170,259
Term loans amortized cost, four years before current fiscal year	167,484	148,371
Term loans amortized cost, five years or more before current fiscal year	333,356	242,061
Revolving loans amortized cost	42,095	6,243
Revolving loans converted to term loans	1,032	1,437
Total	2,034,971	1,720,315
Commercial Real Estate | Special Mention
Term loans amortized cost, current fiscal year	0	20,579
Term loans amortized cost, one year before current fiscal year	0	22,324
Term loans amortized cost, two years before current fiscal year	0	328
Term loans amortized cost, three years before current fiscal year	0	24,270
Term loans amortized cost, four years before current fiscal year	0	28,676
Term loans amortized cost, five years or more before current fiscal year	16,630	10,564
Revolving loans amortized cost	0	146
Revolving loans converted to term loans	0	0
Total	16,630	106,887
Commercial Real Estate | Classified
Term loans amortized cost, current fiscal year	21,830	0
Term loans amortized cost, one year before current fiscal year	0	0
Term loans amortized cost, two years before current fiscal year	18,430	503
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	14,498	1,187
Term loans amortized cost, five years or more before current fiscal year	0	412
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	54,758	2,102
Commercial & Industrial
Term loans amortized cost, current fiscal year	66,726	140,718
Term loans amortized cost, one year before current fiscal year	125,712	63,405
Term loans amortized cost, two years before current fiscal year	52,471	71,265
Term loans amortized cost, three years before current fiscal year	49,812	86,477
Term loans amortized cost, four years before current fiscal year	73,739	86,438
Term loans amortized cost, five years or more before current fiscal year	145,361	114,241
Revolving loans amortized cost	90,664	93,108
Revolving loans converted to term loans	587	745
Total	605,072	656,397
Gross charge-offs, current year	37
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	0
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	0
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	37
Commercial & Industrial | Pass
Term loans amortized cost, current fiscal year	55,607	127,152
Term loans amortized cost, one year before current fiscal year	124,894	63,180
Term loans amortized cost, two years before current fiscal year	52,282	71,265
Term loans amortized cost, three years before current fiscal year	49,812	86,470
Term loans amortized cost, four years before current fiscal year	72,876	85,011
Term loans amortized cost, five years or more before current fiscal year	145,361	114,241
Revolving loans amortized cost	90,664	90,987
Revolving loans converted to term loans	587	745
Total	592,083	639,051
Commercial & Industrial | Special Mention
Term loans amortized cost, current fiscal year	11,119	13,566
Term loans amortized cost, one year before current fiscal year	0	0
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	181	1,427
Term loans amortized cost, five years or more before current fiscal year	0	0
Revolving loans amortized cost	0	1,426
Revolving loans converted to term loans	0	0
Total	11,300	16,419
Commercial & Industrial | Classified
Term loans amortized cost, current fiscal year	0	0
Term loans amortized cost, one year before current fiscal year	818	225
Term loans amortized cost, two years before current fiscal year	189	0
Term loans amortized cost, three years before current fiscal year	0	7
Term loans amortized cost, four years before current fiscal year	682	0
Term loans amortized cost, five years or more before current fiscal year	0	0
Revolving loans amortized cost	0	695
Revolving loans converted to term loans	0	0
Total	1,689	927
Residential Real Estate [Member]
Term loans amortized cost, current fiscal year	431,563	838,566
Term loans amortized cost, one year before current fiscal year	808,442	708,360
Term loans amortized cost, two years before current fiscal year	666,447	277,613
Term loans amortized cost, three years before current fiscal year	256,440	123,364
Term loans amortized cost, four years before current fiscal year	114,056	74,856
Term loans amortized cost, five years or more before current fiscal year	327,530	300,243
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	2,604,478	2,323,002
Gross charge-offs, current year	0
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	0
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	0
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	0
Residential Real Estate [Member] | Current
Term loans amortized cost, current fiscal year	431,563	838,566
Term loans amortized cost, one year before current fiscal year	808,442	707,760
Term loans amortized cost, two years before current fiscal year	666,447	277,613
Term loans amortized cost, three years before current fiscal year	255,554	123,098
Term loans amortized cost, four years before current fiscal year	113,462	72,541
Term loans amortized cost, five years or more before current fiscal year	320,894	294,549
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	2,596,362	2,314,127
Residential Real Estate [Member] | Past Due
Term loans amortized cost, current fiscal year	0	0
Term loans amortized cost, one year before current fiscal year	0	600
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	886	266
Term loans amortized cost, four years before current fiscal year	594	2,315
Term loans amortized cost, five years or more before current fiscal year	6,636	5,694
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	8,116	8,875
Home Equity [Member]
Term loans amortized cost, current fiscal year	24,925	20,665
Term loans amortized cost, one year before current fiscal year	14,997	8,308
Term loans amortized cost, two years before current fiscal year	6,829	3,742
Term loans amortized cost, three years before current fiscal year	2,919	2,406
Term loans amortized cost, four years before current fiscal year	2,112	2,015
Term loans amortized cost, five years or more before current fiscal year	4,525	3,237
Revolving loans amortized cost	242,760	235,552
Revolving loans converted to term loans	13,527	9,790
Total	312,594	285,715
Gross charge-offs, current year	0
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	0
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	0
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	0
Home Equity [Member] | Current
Term loans amortized cost, current fiscal year	24,925	20,665
Term loans amortized cost, one year before current fiscal year	14,997	8,308
Term loans amortized cost, two years before current fiscal year	6,829	3,742
Term loans amortized cost, three years before current fiscal year	2,919	2,406
Term loans amortized cost, four years before current fiscal year	1,982	1,947
Term loans amortized cost, five years or more before current fiscal year	3,696	3,139
Revolving loans amortized cost	241,459	235,004
Revolving loans converted to term loans	12,591	9,268
Total	309,398	284,479
Home Equity [Member] | Past Due
Term loans amortized cost, current fiscal year	0	0
Term loans amortized cost, one year before current fiscal year	0	0
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	130	68
Term loans amortized cost, five years or more before current fiscal year	829	98
Revolving loans amortized cost	1,301	548
Revolving loans converted to term loans	936	522
Total	3,196	1,236
Other Consumer [Member]
Term loans amortized cost, current fiscal year	6,798	4,247
Term loans amortized cost, one year before current fiscal year	3,530	4,287
Term loans amortized cost, two years before current fiscal year	3,685	1,676
Term loans amortized cost, three years before current fiscal year	1,001	299
Term loans amortized cost, four years before current fiscal year	120	235
Term loans amortized cost, five years or more before current fiscal year	3,824	4,726
Revolving loans amortized cost	245	251
Revolving loans converted to term loans	0	0
Total	19,203	15,721
Gross charge-offs, current year	159
Gross charge-offs, prior year	0
Gross charge-offs, two years ago	8
Gross charge-offs, three years ago	0
Gross charge-offs, four years ago	0
Gross charge-offs, five years ago or more	0
Gross charge-offs, revolving loans	0
Gross charge-offs, revolving loans converted to term loans	0
Total gross charge-offs	167
Other Consumer [Member] | Current
Term loans amortized cost, current fiscal year	6,777	4,231
Term loans amortized cost, one year before current fiscal year	3,530	4,287
Term loans amortized cost, two years before current fiscal year	3,685	1,676
Term loans amortized cost, three years before current fiscal year	1,001	299
Term loans amortized cost, four years before current fiscal year	120	235
Term loans amortized cost, five years or more before current fiscal year	3,824	4,726
Revolving loans amortized cost	243	251
Revolving loans converted to term loans	0	0
Total	19,180	15,705
Other Consumer [Member] | Past Due
Term loans amortized cost, current fiscal year	21	16
Term loans amortized cost, one year before current fiscal year	0	0
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	0	0
Term loans amortized cost, five years or more before current fiscal year	0	0
Revolving loans amortized cost	2	0
Revolving loans converted to term loans	0	0
Total	$ 23	$ 16

Loans (Analysis of Loan Servici

Loans (Analysis of Loan Servicing Rights) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loan Servicing Rights [Roll Forward]
Beginning balance	$ 9,015	$ 9,821	$ 7,588
Loan servicing rights capitalized	1,069	957	5,671
Amortization	(1,538)	(1,763)	(3,438)
(Increase) decrease in impairment reserve	0		0
Ending balance	8,546	9,015	9,821
Valuation Allowance [Roll Forward]
Beginning balance	0	0	(154)
Loan servicing rights capitalized	0	0	0
Amortization	0	0	0
(Increase) decrease in impairment reserve	(34)		154
Ending balance	(34)	0	0
Total Loan Servicing Rights [Roll Forward]
Beginning Balance	9,015	9,821	7,434
Loan servicing rights capitalized	1,069	957	5,671
Amortization	(1,538)	(1,763)	(3,438)
(Increase) decrease in impairment reserve	(34)		154
Ending balance	$ 8,512	$ 9,015	$ 9,821

Loans (Estimated Aggregate Amor

Loans (Estimated Aggregate Amortization Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Receivables [Abstract]
Amortization expense, Year One	$ 1,330
Amortization expense, Year Two	1,123
Amortization expense, Year Three	948
Amortization expense, Year Four	801
Amortization expense, Year Five	676
Amortization expense, Thereafter	3,668
Total estimated amortization expense	$ 8,546	$ 9,015	$ 9,821	$ 7,588

Loans (Loans Serviced for Other

Loans (Loans Serviced for Others, by Type of Loan) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Balance of loans being serviced	$ 1,590,296	$ 1,565,658
Residential real estate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Balance of loans being serviced	1,454,342	1,457,896
Commercial [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Balance of loans being serviced	$ 135,954	$ 107,762

Allowance for Credit Losses o_3

Allowance for Credit Losses on Loans (Allowance for Credit Losses on Loans Rollforward Analysis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 38,027	$ 39,088	$ 44,106
Charge-offs	(577)	(184)	(663)
Recoveries	57	552	246
Provision	3,550	(1,429)	(4,601)
Ending Balance	41,057	38,027	39,088
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	18,435	18,933	22,065
Charge-offs	(373)	0	0
Recoveries	0	445	0
Provision	6,082	(943)	(3,132)
Ending Balance	24,144	18,435	18,933
Commercial & Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	10,356	10,832	12,228
Charge-offs	(37)	(36)	(307)
Recoveries	12	29	41
Provision	(2,243)	(469)	(1,130)
Ending Balance	8,088	10,356	10,832
Total Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	28,791	29,765	34,293
Charge-offs	(410)	(36)	(307)
Recoveries	12	474	41
Provision	3,839	(1,412)	(4,262)
Ending Balance	32,232	28,791	29,765
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,740	7,860	8,042
Charge-offs	0	0	(107)
Recoveries	3	21	89
Provision	(340)	(141)	(164)
Ending Balance	7,403	7,740	7,860
Home Equity [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,115	1,069	1,300
Charge-offs	0	0	(183)
Recoveries	10	12	91
Provision	(77)	34	(139)
Ending Balance	1,048	1,115	1,069
Other Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	381	394	471
Charge-offs	(167)	(148)	(66)
Recoveries	32	45	25
Provision	128	90	(36)
Ending Balance	374	381	394
Total Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,496	1,463	1,771
Charge-offs	(167)	(148)	(249)
Recoveries	42	57	116
Provision	51	124	(175)
Ending Balance	$ 1,422	$ 1,496	$ 1,463

Premises and Equipment (Summary

Premises and Equipment (Summary) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Land	$ 6,042	$ 6,042
Premises and improvements	48,573	47,029
Furniture, fixtures and equipment	23,980	24,463
Premises and equipment, gross	78,595	77,534
Less: accumulated depreciation	46,304	45,984
Total premises and equipment, net	$ 32,291	$ 31,550

Premises and Equipment (Depreci

Premises and Equipment (Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 4,005	$ 3,465	$ 3,411
Premises and Improvements [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	1,840	1,668	1,470
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 2,165	$ 1,797	$ 1,941

Leases (Narrative) (Details)

Leases (Narrative) (Details) $ in Thousands	Dec. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 29,364		$ 27,156
Operating lease liabilities	$ 32,027	[1]	$ 29,558
Number of operating leases not yet commenced	0		3
[1] Includes short-term operating lease liabilities of $3.1 million.

Leases (Schedule of Certain Lea

Leases (Schedule of Certain Lease Terms) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Weighted average discount rate	3.80%	3.34%
Weighted average remaining lease term	13 years 1 month 6 days	13 years 3 months 18 days
Minimum [Member]
Range of lease expiration dates	3 months	7 months
Range of lease renewal options	3 years	3 years
Maximum [Member]
Range of lease expiration dates	24 years	25 years
Range of lease renewal options	5 years	5 years

Leases (Schedule of Operating L

Leases (Schedule of Operating Lease Payments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023		Dec. 31, 2022
Leases [Abstract]
Operating lease minimum payments, Year One	$ 4,243
Operating lease minimum payments, Year Two	3,701
Operating lease minimum payments, Year Three	3,460
Operating lease minimum payments, Year Four	2,917
Operating lease minimum payments, Year Five	2,595
Operating lease minimum payments, Thereafter	23,958
Total operating lease payments	40,874
Less: interest	8,847
Present value of operating lease liabilities	32,027	[1]	$ 29,558
Short-term operating leases	$ 3,100
[1] Includes short-term operating lease liabilities of $3.1 million.

Leases (Lease Cost and Cash Pai

Leases (Lease Cost and Cash Paid) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease expense		$ 4,476	$ 4,159	$ 4,015
Variable lease expense		201	104	69
Total lease expense	[1]	4,677	4,263	4,084
Cash paid reducing operating lease liabilities		$ 4,275	$ 4,076	$ 3,888
[1] Included in net occupancy expenses in the Consolidated Statements of Income.

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 843	$ 860	$ 890
Weston Financial acquisition [Member] | Advisory Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life (in years)	20 years
Halsey acquisition [Member] | Advisory Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life (in years)	15 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill	$ 63,909	$ 63,909
Commercial Banking [Member]
Goodwill [Line Items]
Goodwill	22,591	22,591
Wealth Management Services [Member]
Goodwill [Line Items]
Goodwill	$ 41,318	$ 41,318

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Schedule of Components of Intangible Assets) (Details) - Advisory Contracts [Member] - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 20,803	$ 20,803
Accumulated amortization	17,092	16,249
Net amount	$ 3,711	$ 4,554

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets (Schedule of Amortization Annual Expense) (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Finite-Lived Intangible Assets [Line Items]
Estimated annual intangible amortization expense, Year One	$ 826
Estimated annual intangible amortization expense, Year Two	702
Estimated annual intangible amortization expense, Year Three	476
Estimated annual intangible amortization expense, Year Four	476
Estimated annual intangible amortization expense, Year Five	476
Estimated annual intangible amortization expense, Thereafter	$ 755

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details) $ in Millions	Dec. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Loss on cash flow hedge included in AOCI(L) upon termination	$ 26.5
Loss on cash flow hedged included in AOCI(L) upon termination, net of tax	20.1
Remaining unamortized balance of loss	20
Remaining unamortized balance of loss, after tax	$ 14.9

Derivative Financial Instrume_4

Derivative Financial Instruments (Fair Value of Derivatives by Balance Sheet Location) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Accrued interest receivable		$ 22,900	$ 17,600
Interest rate swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount	[1]	120,000	320,000
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate cash flow hedge asset at fair value	[1]	802	548
Accrued interest receivable		239	24
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate cash flow hedge liability at fair value	[1]	1,119	31,178
Accrued interest payable		0	856
Interest rate swaps with customers [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount		938,872	935,099
Interest rate swaps with customers [Member] | Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset not designated as hedging instruments		6,594	32
Interest rate swaps with customers [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability not designated as hedging instruments		52,102	68,137
Mirror swaps with counterparties [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount		938,872	935,099
Mirror swaps with counterparties [Member] | Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset not designated as hedging instruments		51,859	67,797
Mirror swaps with counterparties [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability not designated as hedging instruments		6,757	61
Risk participation agreements [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount		321,055	282,191
Risk participation agreements [Member] | Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset not designated as hedging instruments		66	0
Risk participation agreements [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability not designated as hedging instruments		1	2
Interest rate lock commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount		20,980	12,201
Interest rate lock commitments [Member] | Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset not designated as hedging instruments		504	144
Interest rate lock commitments [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability not designated as hedging instruments		1	4
Forward sale commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount		50,117	23,150
Forward sale commitments [Member] | Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset not designated as hedging instruments		18	58
Forward sale commitments [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability not designated as hedging instruments		711	150
Derivative assets [Member]
Derivatives, Fair Value [Line Items]
Gross derivative assets		59,843	68,579
Less amounts offset in Consolidated Balance Sheets, derivative liabilities	[2]	7,877	23,524
Net amounts presented in Consolidated Balance Sheets, derivative assets		51,966	45,055
Less collateral pledged, derivatives assets	[3]	0	0
Net amounts		51,966	45,055
Derivative liabilities [Member]
Derivatives, Fair Value [Line Items]
Gross derivative liabilities		60,691	99,532
Less amounts offset in Consolidated Balance Sheets, derivative assets	[2]	7,877	23,524
Net amounts presented in Consolidated Balance Sheets, derivative liabilities		52,814	76,008
Less collateral pledged, derivative liabilities	[3]	0	7,716
Net amounts		$ 52,814	$ 68,292
[1] The fair value of derivative assets includes accrued interest receivable of $239 thousand and $24 thousand, respectively, at December 31, 2023 and 2022. There was no accrued interest payable included in the fair value of derivative liabilities at December 31, 2023, compared to $856 thousand of accrued interest payable at December 31, 2022. Interest rate risk management contracts and loan related derivative contracts with counterparties are subject to master netting arrangements. Collateral contractually required to be pledged to derivative counterparties is in the form of cash. Washington Trust may need to post additional collateral in the future in proportion to potential increases in unrealized loss positions.

Derivative Financial Instrume_5

Derivative Financial Instruments (Derivatives in Cash Flow Hedging Relationships, Effect in Statements of Changes in Shareholders' Equity and Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Net change in the fair value of cash flow hedges	$ 7,026	$ (18,632)	$ (2,566)
Other Comprehensive Income (Loss) [Member] | Interest rate swaps [Member] | Cash Flow Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net change in the fair value of cash flow hedges	$ 7,026	$ (18,632)	$ (2,566)

Derivative Financial Instrume_6

Derivative Financial Instruments (Derivatives not Designated as Hedging Instruments, Effect in Statements of Income) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 1,814	$ 6,170	$ 3,778
Interest rate swaps with customers [Member] | Loan related derivative income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(1,408)	(92,730)	(27,846)
Mirror swaps with counterparties [Member] | Loan related derivative income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	3,211	94,759	31,547
Risk participation agreements [Member] | Loan related derivative income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(413)	727	641
Interest rate lock commitments [Member] | Mortgage banking revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	363	(1,116)	(5,947)
Forward sale commitments [Member] | Mortgage banking revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 61	$ 4,530	$ 5,383

Fair Value Measurements (Mortga

Fair Value Measurements (Mortgage Loans Held For Sale, Fair Value Option) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Aggregate fair value	$ 20,077	$ 8,987
Aggregate principal balance	19,480	8,860
Difference between fair value and principal balance	597	127
Mortgage Loans Held for Sale [Member]
Change in fair value of mortgage loans held for sale under fair value option	$ 470	$ (868)

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	$ 1,000,380	$ 993,928
Mortgage loans held for sale	20,077	8,987
Obligations of U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	225,742	199,582
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	753,956	774,102
Individual name issuer trust preferred debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	8,793	8,760
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	11,889	11,484
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 20,077	$ 8,987
Derivative assets	Other assets	Other assets
Total assets at fair value	$ 1,072,423	$ 1,047,970
Derivative liabilities	Other liabilities	Other liabilities
Total liabilities at fair value on a recurring basis	$ 52,814	$ 76,008
Recurring [Member] | Obligations of U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	225,742	199,582
Recurring [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	753,956	774,102
Recurring [Member] | Individual name issuer trust preferred debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	8,793	8,760
Recurring [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	11,889	11,484
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 0	$ 0
Derivative assets	Other assets	Other assets
Total assets at fair value	$ 0	$ 0
Derivative liabilities	Other liabilities	Other liabilities
Total liabilities at fair value on a recurring basis	$ 0	$ 0
Recurring [Member] | Level 1 [Member] | Obligations of U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 1 [Member] | Individual name issuer trust preferred debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 1 [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 20,077	$ 8,987
Derivative assets	Other assets	Other assets
Total assets at fair value	$ 1,072,423	$ 1,047,970
Derivative liabilities	Other liabilities	Other liabilities
Total liabilities at fair value on a recurring basis	$ 52,814	$ 76,008
Recurring [Member] | Level 2 [Member] | Obligations of U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	225,742	199,582
Recurring [Member] | Level 2 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	753,956	774,102
Recurring [Member] | Level 2 [Member] | Individual name issuer trust preferred debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	8,793	8,760
Recurring [Member] | Level 2 [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	11,889	11,484
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 0	$ 0
Derivative assets	Other assets	Other assets
Total assets at fair value	$ 0	$ 0
Derivative liabilities	Other liabilities	Other liabilities
Total liabilities at fair value on a recurring basis	$ 0	$ 0
Recurring [Member] | Level 3 [Member] | Obligations of U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 3 [Member] | Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 3 [Member] | Individual name issuer trust preferred debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	0	0
Recurring [Member] | Level 3 [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities, fair value	$ 0	$ 0

Fair Value Measurements (Asse_2

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis) (Details) - Nonrecurring [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans		$ 8,050
Loan servicing right		8,512
Total assets at fair value		16,562
Number of collateral dependent individually analyzed loans written down to fair value	0
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans		0
Loan servicing right		0
Total assets at fair value		0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans		0
Loan servicing right		0
Total assets at fair value		0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans		8,050
Loan servicing right		8,512
Total assets at fair value		$ 16,562

Fair Value Measurements (Qualit

Fair Value Measurements (Qualitative Information About Level 3 Assets Measured at Fair Value on a Nonrecurring Basis) (Details) - Nonrecurring [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Fair Value Inputs Assets Qualitative Information [Line Items]
Collateral dependent individually analyzed loans	$ 8,050
Loan servicing right	8,512
Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Collateral dependent individually analyzed loans	8,050
Loan servicing right	$ 8,512
Minimum [Member] | Collateral Dependent Individually Analyzed Loans [Member] | Appraisals Of Collateral [Member] | Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount for costs to sell	0%
Appraisal adjustments	0%
Minimum [Member] | Servicing Contracts [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount rate	10%
Prepayment rates	6%
Maximum [Member] | Servicing Contracts [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount rate	14%
Prepayment rates	53%
Weighted Average [Member] | Servicing Contracts [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount rate	10%
Prepayment rates	9%

Fair Value Measurements (Carryi

Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		$ 90,184	$ 118,422	$ 178,493	$ 202,268
Loans, net of allowance for credit losses on loans		5,606,649	5,072,112
FHLB stock		51,893	43,463
Investment in BOLI		103,736	102,182
Time deposits	[1]	1,788,237	1,122,882
FHLB advances		1,190,000	980,000
Junior subordinated debentures		22,681	22,681
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		90,184	118,422
Loans, net of allowance for credit losses on loans		5,606,649	5,072,112
FHLB stock		51,893	43,463
Investment in BOLI		103,736	102,182
Non-maturity deposits		3,559,923	3,896,080
Time deposits		1,788,237	1,122,882
FHLB advances		1,190,000	980,000
Junior subordinated debentures		22,681	22,681
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		90,184	118,422
Loans, net of allowance for credit losses on loans		5,365,396	4,929,449
FHLB stock		51,893	43,463
Investment in BOLI		103,736	102,182
Non-maturity deposits		3,559,923	3,896,080
Time deposits		1,773,643	1,137,219
FHLB advances		1,192,262	978,590
Junior subordinated debentures		19,228	18,963
Estimate of Fair Value Measurement [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		90,184	118,422
Loans, net of allowance for credit losses on loans		0	0
FHLB stock		0	0
Investment in BOLI		0	0
Non-maturity deposits		0	0
Time deposits		0	0
FHLB advances		0	0
Junior subordinated debentures		0	0
Estimate of Fair Value Measurement [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0	0
Loans, net of allowance for credit losses on loans		0	0
FHLB stock		51,893	43,463
Investment in BOLI		103,736	102,182
Non-maturity deposits		3,559,923	3,896,080
Time deposits		1,773,643	1,137,219
FHLB advances		1,192,262	978,590
Junior subordinated debentures		19,228	18,963
Estimate of Fair Value Measurement [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0	0
Loans, net of allowance for credit losses on loans		5,365,396	4,929,449
FHLB stock		0	0
Investment in BOLI		0	0
Non-maturity deposits		0	0
Time deposits		0	0
FHLB advances		0	0
Junior subordinated debentures		$ 0	$ 0
[1] Includes wholesale brokered time deposit balances of $654.1 million and $327.0 million, respectively, as of December 31, 2023 and 2022.

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Net increase in deferred tax assets (decrease in income tax expense) primarily resulting from enactment of state law change	$ 3,300
Change in net deferred tax assets	(2,600)
Valuation allowance	2,153	$ 0
Unrecognized tax benefits	$ 0	$ 0

Income Taxes (Schedule of Compo

Income Taxes (Schedule of Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current Tax Expense:
Federal	$ 10,494	$ 16,127	$ 17,032
State	1,501	2,202	2,130
Total current tax expense	11,995	18,329	19,162
Deferred Tax Expense (Benefit):
Federal	412	1,012	1,822
State	(4,102)	148	333
Total deferred tax expense (benefit)	(3,690)	1,160	2,155
Income tax expense	$ 8,305	$ 19,489	$ 21,317

Income Taxes (Schedule of Incom

Income Taxes (Schedule of Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Effective Income Tax Rate Reconciliation [Abstract]
Tax expense at Federal statutory rate	$ 11,861	$ 19,146	$ 20,619
Federal statutory rate	21%	21%	21%
Increase (decrease) in taxes resulting from:
State income tax expense, net of federal tax benefit	$ 1,107	$ 1,856	$ 1,943
State income tax expense, net of federal income tax benefit, rate	2%	2.10%	2%
Share-based compensation	$ 29	$ (68)	$ (159)
Share-based compensation, rate	0.10%	(0.10%)	(0.20%)
Tax-exempt income, net	$ (543)	$ (721)	$ (772)
Tax-exempt income, net, rate	(1.00%)	(0.80%)	(0.80%)
Investment in low-income housing limited partnership	$ (357)	$ (261)	$ (117)
Investment in low-income housing limited partnership, rate	(0.60%)	(0.30%)	(0.10%)
BOLI	$ (732)	$ (544)	$ (614)
BOLI, rate	(1.30%)	(0.60%)	(0.60%)
State valuation allowance adjustment, net	$ 2,153	$ 0	$ 0
State valuation allowance adjustment, net, rate	3.80%	0%	0%
State net operating loss carryforward, net of federal tax	$ (1,312)	$ 0	$ 0
State net operating loss carryforward, net of federal tax, rate	(2.30%)	0%	0%
Adjustment to net deferred tax assets for enacted changes in state tax law	$ (4,093)	$ 0	$ 0
Adjustment to net deferred tax assets for enacted changes in state tax law, rate	(7.20%)	0%	0%
Other	$ 192	$ 81	$ 417
Other, rate	0.20%	0.10%	0.40%
Income tax expense	$ 8,305	$ 19,489	$ 21,317
Effective tax rate	14.70%	21.40%	21.70%

Income Taxes (Schedule of Gross

Income Taxes (Schedule of Gross Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets:
Net unrealized losses on available for sale debt securities	$ 38,823	$ 41,379
Allowance for credit losses on loans	10,470	9,127
Operating lease liabilities	8,167	7,094
Deferred compensation	5,258	4,486
Cash flow hedges	5,250	7,151
Deferred loan origination fees	2,356	2,106
Share-based compensation	1,806	1,884
Defined benefit pension obligations	1,425	0
State net operating loss carryforwards	1,312	0
Other	2,094	1,809
Deferred tax assets	76,961	75,036
Less: valuation allowance	(2,153)	0
Deferred tax assets, net of valuation allowance	74,808	75,036
Deferred Tax Liabilities:
Operating lease ROU assets	(7,488)	(6,518)
Deferred loan origination costs	(7,365)	(6,394)
Loan servicing rights	(2,171)	(2,163)
Depreciation of premises and equipment	(1,897)	(1,494)
Amortization of intangibles	(946)	(1,093)
Defined benefit pension obligations	0	(333)
Other	(1,133)	(669)
Deferred tax liabilities	(21,000)	(18,664)
Net deferred tax asset	$ 53,808	$ 56,372

Deposits (Narrative) (Details)

Deposits (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Time Deposits [Abstract]
Time deposits greater than FDIC limit	$ 271.2	$ 200.9

Deposits (Summary of Deposits)

Deposits (Summary of Deposits) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Deposit Liability [Line Items]
Noninterest-bearing demand deposits		$ 693,746	$ 858,953
Interest-bearing demand deposits	[1]	504,959	333,197
NOW accounts		767,036	871,875
Money market accounts		1,096,959	1,255,805
Savings accounts		497,223	576,250
Time deposits	[2]	1,788,237	1,122,882
Deposits		5,348,160	5,018,962
Wholesale brokered demand deposits		0	31,200
Wholesale brokered time deposits		654,100	327,000
Interest-bearing deposits		$ 4,654,414	$ 4,160,009
[1] Includes wholesale brokered demand deposit balances of $0 and $31.2 million, respectively, as of December 31, 2023 and 2022. Includes wholesale brokered time deposit balances of $654.1 million and $327.0 million, respectively, as of December 31, 2023 and 2022.

Deposits (Schedule of Time Cert

Deposits (Schedule of Time Certifcates of Deposit Maturities) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Schedule Maturity Abstract]
Time deposits scheduled maturity, Year One		$ 1,549,955
Time deposits scheduled maturity, Year Two		149,532
Time deposits scheduled maturity, Year Three		32,528
Time deposits scheduled maturity, Year Four		30,585
Time deposits scheduled maturity, Year Five		25,637
Time deposits scheduled maturity, Thereafter		0
Time deposits	[1]	$ 1,788,237	$ 1,122,882
Weighted Average Rate [Abstract]
Time deposits weighted average rate, Year One		4.63%
Time deposits weighted average rate, Year Two		3.38%
Time deposits weighted average rate, Year Three		2.21%
Time deposits weighted average rate, Year Four		3.16%
Time deposits weighted average rate, Year Five		3.61%
Time deposits weighted average rate, Thereafter		0%
Time deposits weighted average rate		4.44%
[1] Includes wholesale brokered time deposit balances of $654.1 million and $327.0 million, respectively, as of December 31, 2023 and 2022.

Borrowings (Narrative - Federal

Borrowings (Narrative - Federal Home Loan Bank Advances) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Federal Home Loan Bank advances		$ 1,190,000	$ 980,000
Interest rate swaps [Member] | Designated as Hedging Instrument [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Notional amount	[1]	120,000	320,000
Federal Home Loan Bank of Boston [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Federal Home Loan Bank advances		1,190,000	980,000
Unused line of credit with Federal Home Loan Bank		40,000	40,000
Standby letter of credit with FHLB		65,000	215,000
Remaining borrowing capacity with the FHLB		$ 1,100,000	$ 668,300
[1] The fair value of derivative assets includes accrued interest receivable of $239 thousand and $24 thousand, respectively, at December 31, 2023 and 2022. There was no accrued interest payable included in the fair value of derivative liabilities at December 31, 2023, compared to $856 thousand of accrued interest payable at December 31, 2022.

Borrowings (Narrative - Junior

Borrowings (Narrative - Junior Subordinated Debentures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Junior subordinated debentures	$ 22,681	$ 22,681
Trust I Debentures [Member]
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Junior subordinated debentures	$ 8,300	$ 8,300
Basis spread on variable rate	1.71%	1.45%
Interest rate on junior subordinated debentures	7.10%	6.22%
Trust II Debentures [Member]
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Junior subordinated debentures	$ 14,400	$ 14,400
Basis spread on variable rate	1.71%	1.45%
Interest rate on junior subordinated debentures	7.09%	6.14%

Borrowings (Federal Home Loan B

Borrowings (Federal Home Loan Bank Advances Maturity Schedule) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
Federal Home Loan Bank advances	$ 1,190,000	$ 980,000
Federal Home Loan Bank of Boston [Member]
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
Scheduled maturity, Year One	550,000
Scheduled maturity, Year Two	305,000
Scheduled maturity, Year Three	165,000
Scheduled maturity, Year Four	45,000
Scheduled maturity, Year Five	125,000
Scheduled maturity, Thereafter	0
Federal Home Loan Bank advances	$ 1,190,000	$ 980,000
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]
Weighted average rate, Year One	5.30%
Weighted average rate, Year Two	4.94%
Weighted average rate, Year Three	4.54%
Weighted average rate, Year Four	4.24%
Weighted average rate, Year Five	4.15%
Weighted average rate, Thereafter	0%
Weighted average rate, Total	4.94%

Shareholders' Equity (Narrative

Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items]
Amount of treasury repurchases	$ 8,814	$ 9,479
Trust preferred securities included in Tier 1 Capital	22,000	22,000
Bank [Member]
Equity, Class of Treasury Stock [Line Items]
Dividends paid by Bank to Bancorp	$ 38,822	$ 53,240	$ 45,732
2024 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized amount (in shares)	850,000
Authorized amount as a percentage of total common stock	5%
2023 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount of treasury share repurchases	200,000
Average prices of treasury repurchases	$ 43.70
Amount of treasury repurchases	$ 8,800
Excise tax attributable to shares repurchased	$ 73

Shareholders' Equity (Regulator

Shareholders' Equity (Regulatory Capital Requirements) (Details) $ in Thousands		Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Parent Company [Member]
Total Capital (to Risk-Weighted Assets):
Total Capital		$ 611,220	$ 605,005
Total Capital to Risk-Weighted Assets		0.1158	0.1237
Total Capital for Capital Adequacy Purposes		$ 422,259	$ 391,363
Total Capital for Capital Adequacy Purposes to Risk-Weighted Assets		0.0800	0.0800
Tier 1 Capital (to Risk-Weighted Assets):
Tier 1 Capital		$ 572,960	$ 571,794
Tier 1 Capital to Risk-Weighted Assets		0.1086	0.1169
Tier 1 Capital Required For Capital Adequacy Purposes		$ 316,694	$ 293,522
Tier 1 Capital Required for Capital Adequacy Purposes to Risk-Weighted Assets		0.0600	0.0600
Common Equity Tier 1 Capital [Abstract]
Common Equity Tier 1 Capital		$ 550,964	$ 549,798
Common Equity Tier 1 Capital to Risk-Weighted Assets		0.1044	0.1124
Common Equity Tier 1 Required for Capital Adequacy		$ 237,521	$ 220,142
Common Equity Tier 1 Required for Capital Adequacy Purposes to Risk-Weighted Assets		0.0450	0.0450
Tier 1 Capital (to Average Assets):
Tier 1 Leverage Capital		$ 572,960	$ 571,794
Tier 1 Leverage Capital to Average Assets	[1]	0.0780	0.0865
Tier 1 Leverage Capital Required for Capital Adequacy Purposes		$ 293,837	$ 264,295
Tier 1 Leverage Capital Required for Capital Adequacy Purposes to Average Assets	[1]	0.0400	0.0400
Bank [Member]
Total Capital (to Risk-Weighted Assets):
Total Capital		$ 605,289	$ 588,090
Total Capital to Risk-Weighted Assets		0.1147	0.1202
Total Capital for Capital Adequacy Purposes		$ 422,131	$ 391,260
Total Capital for Capital Adequacy Purposes to Risk-Weighted Assets		0.0800	0.0800
Total Capital To Be Well Capitalized		$ 527,663	$ 489,074
Total Capital To Be Well Capitalized to Risk-Weighted Assets		0.1000	0.1000
Tier 1 Capital (to Risk-Weighted Assets):
Tier 1 Capital		$ 567,029	$ 554,879
Tier 1 Capital to Risk-Weighted Assets		0.1075	0.1135
Tier 1 Capital Required For Capital Adequacy Purposes		$ 316,598	$ 293,445
Tier 1 Capital Required for Capital Adequacy Purposes to Risk-Weighted Assets		0.0600	0.0600
Tier 1 Capital Required To Be Well Capitalized		$ 422,131	$ 391,260
Tier 1 Capital Required To Be Well Capitalized to Risk-Weighted Assets		0.0800	0.0800
Common Equity Tier 1 Capital [Abstract]
Common Equity Tier 1 Capital		$ 567,029	$ 554,879
Common Equity Tier 1 Capital to Risk-Weighted Assets		0.1075	0.1135
Common Equity Tier 1 Required for Capital Adequacy		$ 237,449	$ 220,083
Common Equity Tier 1 Required for Capital Adequacy Purposes to Risk-Weighted Assets		0.0450	0.0450
Common Equity Tier 1 Required To Be Well Capitalized		$ 342,981	$ 317,898
Common Equity Tier 1 Required To Be Well Capitalized to Risk-Weighted Assets		0.0650	0.0650
Tier 1 Capital (to Average Assets):
Tier 1 Leverage Capital		$ 567,029	$ 554,879
Tier 1 Leverage Capital to Average Assets	[1]	0.0772	0.0840
Tier 1 Leverage Capital Required for Capital Adequacy Purposes		$ 293,742	$ 264,177
Tier 1 Leverage Capital Required for Capital Adequacy Purposes to Average Assets	[1]	0.0400	0.0400
Tier 1 Leverage Capital Required To Be Well Capitalized		$ 367,177	$ 330,222
Tier 1 Leverage Capital Required To Be Well Capitalized to Average Assets	[1]	0.0500	0.0500
[1] Leverage ratio.

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Receivables	$ 5,500	$ 5,100
Contract cost assets	$ 2,000	$ 2,100

Revenue from Contracts with C_4

Revenue from Contracts with Customers (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net interest income	[1]	$ 137,098	$ 155,990	$ 141,435
Wealth management revenues	[1]	35,540	38,746	41,282
Mortgage banking revenues	[1]	6,660	8,733	28,626
Card interchange fees	[1]	4,921	4,996	4,996
Service charges on deposit accounts	[1]	2,806	3,192	2,683
Loan related derivative income	[1]	1,390	2,756	4,342
Income from bank-owned life insurance	[1]	3,488	2,591	2,925
Other income	[1]	1,335	1,588	2,540
Total noninterest income	[1]	56,140	62,602	87,394
Total revenues	[1]	193,238	218,592	228,829
Revenues from contracts with customers		44,493	48,153	51,109
Net Interest Income [Member]
Revenues from contracts with customers	[2]	0	0	0
Wealth management revenues [Member]
Revenues from contracts with customers	[2]	35,540	38,746	41,282
Mortgage banking revenues [Member]
Revenues from contracts with customers	[2]	0	0	0
Card interchange fees [Member]
Revenues from contracts with customers	[2]	4,921	4,996	4,996
Services charges on deposit accounts [Member]
Revenues from contracts with customers	[2]	2,806	3,192	2,683
Loan related derivative income [Member]
Revenues from contracts with customers	[2]	0	0	0
Income from bank-owned life insurance [Member]
Revenues from contracts with customers	[2]	0	0	0
Other income [Member]
Revenues from contracts with customers	[2]	1,226	1,219	2,148
Total noninterest income in scope of Topic 606 [Member]
Revenues from contracts with customers	[2]	44,493	48,153	51,109
Total revenues in scope of Topic 606 [Member]
Revenues from contracts with customers	[2]	$ 44,493	$ 48,153	$ 51,109
[1] As reported in the Consolidated Statements of Income. Revenue from contracts with customers in scope of ASC 606.

Revenue from Contract with Cust

Revenue from Contract with Customers (Disaggregation by Timing of Revenue Recognition) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from contracts with customers		$ 44,493	$ 48,153	$ 51,109
Wealth management revenues [Member]
Revenues from contracts with customers	[1]	35,540	38,746	41,282
Wealth management revenues [Member] | Transferred over Time [Member]
Revenues from contracts with customers		35,540	38,746	41,282
Card interchange fees [Member]
Revenues from contracts with customers	[1]	4,921	4,996	4,996
Card interchange fees [Member] | Transferred at Point in Time [Member]
Revenues from contracts with customers		4,921	4,996	4,996
Services charges on deposit accounts [Member]
Revenues from contracts with customers	[1]	2,806	3,192	2,683
Services charges on deposit accounts [Member] | Transferred at Point in Time [Member]
Revenues from contracts with customers		1,842	2,512	2,136
Services charges on deposit accounts [Member] | Transferred over Time [Member]
Revenues from contracts with customers		964	680	547
Other income [Member]
Revenues from contracts with customers	[1]	1,226	1,219	2,148
Other income [Member] | Transferred at Point in Time [Member]
Revenues from contracts with customers		983	967	1,931
Other income [Member] | Transferred over Time [Member]
Revenues from contracts with customers		$ 243	$ 252	$ 217
[1] Revenue from contracts with customers in scope of ASC 606.

Employee Benefits (Narrative) (

Employee Benefits (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution amounts	$ 3,500	$ 3,200	$ 3,000
Deferred compensation plan, accrued liability	$ 20,600	18,700
Non-elective Employer Contribution [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution	4%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution	3%
Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 75,300	64,800
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Available-for-sale securities and other short-term investments, rabbi trusts	13,600	14,000
Accumulated benefit obligation	13,200	$ 13,100
Estimated future employer contributions in next fiscal year	$ 859

Employee Benefits (Schedule of

Employee Benefits (Schedule of Net Funded (Unfunded) Status) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Qualified Pension Plan [Member]
Change in Benefit Obligation:
Benefit obligation at beginning of period		$ 66,656	$ 89,408
Service cost	[1]	1,403	2,062	$ 2,369
Interest cost	[2]	3,540	2,368	2,004
Actuarial (gain) loss		8,522	(23,658)
Benefits paid		(4,570)	(3,422)
Administrative expenses		(267)	(102)
Benefit obligation at end of period		75,284	66,656	89,408
Change in Plan Assets:
Fair value of plan assets at beginning of period		81,553	103,047
Actual return on plan assets		6,121	(17,970)
Employer contributions		0	0
Benefits paid		(4,570)	(3,422)
Administrative expenses		(267)	(102)
Fair value of plan assets at end of period		82,837	81,553	103,047
Funded (unfunded) status at end of period	[3]	7,553	14,897
Non-Qualified Retirement Plans [Member]
Change in Benefit Obligation:
Benefit obligation at beginning of period		13,562	17,717
Service cost	[1]	156	218	208
Interest cost	[2]	706	423	337
Actuarial (gain) loss		(279)	(3,880)
Benefits paid		(950)	(916)
Administrative expenses		0	0
Benefit obligation at end of period		13,195	13,562	17,717
Change in Plan Assets:
Fair value of plan assets at beginning of period		0	0
Actual return on plan assets		0	0
Employer contributions		950	916
Benefits paid		(950)	(916)
Administrative expenses		0	0
Fair value of plan assets at end of period		0	0	$ 0
Funded (unfunded) status at end of period	[3]	$ (13,195)	$ (13,562)
[1] Included in salaries and employee benefits expense in the Consolidated Statements of Income. Included in other expenses in the Consolidated Statements of Income. Funded status of the qualified pension plan is included in other assets in the Consolidated Balance Sheets. Unfunded status of the non-qualified retirement plans is included in other liabilities in the Consolidated Balance Sheets.

Employee Benefits (Components o

Employee Benefits (Components of Accumulated Other Comprehensive Income(Loss)) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Qualified Pension Plan [Member]
Components of Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net actuarial loss included in AOCL, pre-tax	$ 8,837	$ 1,846
Non-Qualified Retirement Plans [Member]
Components of Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net actuarial loss included in AOCL, pre-tax	$ 2,939	$ 3,455

Employee Benefits (Components_2

Employee Benefits (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (on a pre-tax basis):
Net loss (gain)		$ 6,712	$ (4,934)	$ (5,908)
Recognized in other comprehensive income (loss)		(6,475)	6,646	8,752
Qualified Pension Plan [Member]
Net Periodic Benefit Cost:
Service cost	[1]	1,403	2,062	2,369
Interest cost	[2]	3,540	2,368	2,004
Expected return on plan assets	[2]	(4,590)	(4,634)	(4,815)
Recognized net actuarial loss	[2]	0	1,020	2,121
Net periodic benefit cost		353	816	1,679
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (on a pre-tax basis):
Net loss (gain)		6,991	(2,074)	(8,132)
Recognized in other comprehensive income (loss)		6,991	(2,074)	(8,132)
Total recognized in net periodic benefit cost and other comprehensive income (loss)		7,344	(1,258)	(6,453)
Non-Qualified Retirement Plans [Member]
Net Periodic Benefit Cost:
Service cost	[1]	156	218	208
Interest cost	[2]	706	423	337
Expected return on plan assets	[2]	0	0	0
Recognized net actuarial loss	[2]	237	692	723
Net periodic benefit cost		1,099	1,333	1,268
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (on a pre-tax basis):
Net loss (gain)		(516)	(4,572)	(621)
Recognized in other comprehensive income (loss)		(516)	(4,572)	(621)
Total recognized in net periodic benefit cost and other comprehensive income (loss)		$ 583	$ (3,239)	$ 647
[1] Included in salaries and employee benefits expense in the Consolidated Statements of Income. Included in other expenses in the Consolidated Statements of Income.

Employee Benefits (Weighted-Ave

Employee Benefits (Weighted-Average Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Qualified Pension Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.51%	5.54%
Rate of compensation increase	0.50%	5%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Equivalent single discount rate for benefit obligations	5.54%	3%	2.71%
Equivalent single discount rate for service cost	5.60%	3.11%	2.86%
Equivalent single discount rate for interest cost	5.43%	2.67%	2.16%
Expected long-term return on plan assets	5.25%	5.25%	5.75%
Rate of compensation increase	5%	3.75%	3.75%
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.10%	5.50%
Rate of compensation increase		5%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Equivalent single discount rate for benefit obligations	5.50%	2.89%	2.51%
Equivalent single discount rate for service cost	5.61%	3.16%	2.94%
Equivalent single discount rate for interest cost	5.40%	2.48%	1.97%
Rate of compensation increase	5%	3.75%	3.75%

Employee Benefits (Schedule o_2

Employee Benefits (Schedule of Fair Value of Qualified Pension Plan Assets) (Details) - Qualified Pension Plan [Member] - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 82,837	$ 81,553	$ 103,047
Asset allocations by category		100%	100%
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 21,257	$ 32,370
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		61,580	49,183
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 16,820	$ 8,438
Asset allocations by category		20.30%	10.30%
Cash and cash equivalents | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 16,820	$ 8,438
Cash and cash equivalents | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Cash and cash equivalents | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Obligations of U.S government-sponsored enterprises
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		58,147	42,601
Obligations of U.S government-sponsored enterprises | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Obligations of U.S government-sponsored enterprises | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		58,147	42,601
Obligations of U.S government-sponsored enterprises | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Obligations of states and political subdivisions
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,459	1,728
Obligations of states and political subdivisions | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Obligations of states and political subdivisions | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,459	1,728
Obligations of states and political subdivisions | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,974	4,854
Corporate bonds | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Corporate bonds | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,974	4,854
Corporate bonds | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 4,437	$ 23,932
Asset allocations by category		5.40%	29.40%
Mutual funds | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 4,437	$ 23,932
Mutual funds | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Mutual funds | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 0	$ 0
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Asset allocations by category	[1]	74.30%	60.30%
[1] Includes obligations of U.S. government agencies and U.S. government-sponsored enterprises, obligations of states and political subdivisions and corporate bonds.

Employee Benefits (Estimated Fu

Employee Benefits (Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Qualified Pension Plan [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Expected future payments, Year One	$ 2,830
Expected future payments, Year Two	76,626	[1]
Expected future payments, Year Three	0
Expected future payments, Year Four	0
Expected future payments, Year Five	0
Expected future payments, Thereafter	0
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Expected future payments, Year One	859
Expected future payments, Year Two	873
Expected future payments, Year Three	918
Expected future payments, Year Four	942
Expected future payments, Year Five	934
Expected future payments, Thereafter	$ 4,749
[1]The expected benefit payments for the qualified pension plan in 2025 reflects the termination of the plan that is expected to be completed in 2025

Share-Based Compensation Arra_3

Share-Based Compensation Arrangements (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum shares that may be issued under 2022 Long Term Incentive Plan	669,966
Reserved shares available for issuance	1,232,966
Total unrecognized compensation cost	$ 4,400
Weighted average recognition period (in years)	1 year 9 months 18 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options exercised total intrinsic value	$ 0	$ 142	$ 897
Cliff vesting period (years)	3 years	3 years	3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	30,862	21,467	19,185
Cliff vesting period (years)	3 years	3 years	3 years
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	47,520
Minimum [Member] | Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cliff vesting period (years)	3 years

Share-Based Compensation Arra_4

Share-Based Compensation Arrangements (Compensation Cost for Share-based Compensation Arrangements) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Share-based compensation expense		$ 2,064	$ 3,247	$ 3,316
Related income tax benefits	[1]	492	857	978
Excess tax (expense) benefit recognized upon the settlement of share-based compensation awards		$ (34)	$ 78	$ 182
[1] Includes $34 thousand of excess tax expense recognized upon the settlement of share-based compensation awards in 2023, compared to $78 thousand and $182 thousand, respectively, of excess tax benefits in 2022 and 2021.

Share-Based Compensation Arra_5

Share-Based Compensation Arrangements (Share Options Fair Value Assumptions) (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted	49,000	57,700	53,700
Cliff vesting period (years)	3 years	3 years	3 years
Expected term (years)	6 years 6 months	6 years 6 months	6 years 6 months
Expected dividend yield	4.38%	3.90%	3.80%
Weighted average expected volatility	33.15%	31.67%	31.50%
Weighted average risk-free interest rate	4.85%	4.15%	1.41%
Weighted average grant-date fair value	$ 6.71	$ 12.01	$ 11.10

Share-Based Compensation Arra_6

Share-Based Compensation Arrangements (Share Options Activity) (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Share Options:
Options outstanding at beginning of period	371,890
Granted	49,000	57,700	53,700
Exercised	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period	(11,033)
Options outstanding at end of period	409,857	371,890
Options exercisable at end of period	253,257
Weighted Average Exercise Price (in dollars per share):
Options outstanding at beginning of period	$ 46.67
Granted	26.42
Exercised	0
Forfeited or expired	36.53
Options outstanding at end of period	44.52	$ 46.67
Options exercisable at end of period	$ 45.09
Outstanding Weighted Average Remaining Contractual Term	6 years 4 months 2 days
Exercisable Weighted Average Remaining Contractual Term	4 years 9 months 29 days
Outstanding Aggregate Intrinsic Value	$ 303
Exercisable Aggregate Intrinsic Value	$ 11

Share-Based Compensation Arra_7

Share-Based Compensation Arrangements (Stock Options Outstanding and Options Exercisable) (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Share Options | shares	409,857
Options Outstanding, Weighted Average Remaining Life (Years)	6 years 4 months 2 days
Options Outstanding, Weighted Average Exercise Price	$ 44.52
Options Exercisable, Number of Share Options | shares	253,257
Options Exercisable, Weighted Average Exercise Price	$ 45.09
$20.01 to $30.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price Ranges, Lower Range Limit	20.01
Exercise Price Ranges, Upper Range Limit	$ 30
Options Outstanding, Number of Share Options | shares	49,000
Options Outstanding, Weighted Average Remaining Life (Years)	9 years 9 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 26.42
Options Exercisable, Number of Share Options | shares	0
Options Exercisable, Weighted Average Exercise Price	$ 0
$30.01 to $40.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price Ranges, Lower Range Limit	30.01
Exercise Price Ranges, Upper Range Limit	$ 40
Options Outstanding, Number of Share Options | shares	90,287
Options Outstanding, Weighted Average Remaining Life (Years)	5 years 8 months 8 days
Options Outstanding, Weighted Average Exercise Price	$ 33.21
Options Exercisable, Number of Share Options | shares	90,287
Options Exercisable, Weighted Average Exercise Price	$ 33.21
$40.01 to $50.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price Ranges, Lower Range Limit	40.01
Exercise Price Ranges, Upper Range Limit	$ 50
Options Outstanding, Number of Share Options | shares	133,528
Options Outstanding, Weighted Average Remaining Life (Years)	6 years 5 months 19 days
Options Outstanding, Weighted Average Exercise Price	$ 47.44
Options Exercisable, Number of Share Options | shares	77,728
Options Exercisable, Weighted Average Exercise Price	$ 46.68
$50.01 to $60.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price Ranges, Lower Range Limit	50.01
Exercise Price Ranges, Upper Range Limit	$ 60
Options Outstanding, Number of Share Options | shares	137,042
Options Outstanding, Weighted Average Remaining Life (Years)	5 years 5 months 1 day
Options Outstanding, Weighted Average Exercise Price	$ 55.60
Options Exercisable, Number of Share Options | shares	85,242
Options Exercisable, Weighted Average Exercise Price	$ 56.22

Share-Based Compensation Arra_8

Share-Based Compensation Arrangements (Restricted Stock Units Activity) (Details) - Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares:
Beginning of period	65,312
Granted	30,862	21,467	19,185
Vested	(26,711)
Forfeited	(1,289)
End of period	68,174	65,312
Weighted Average Grant Date Fair Value (in dollars per share):
Beginning of period	$ 45.51
Granted	31.04
Vested	37.07
Forfeited	48.43
End of period	$ 42.21	$ 45.51

Share-Based Compensation Arra_9

Share-Based Compensation Arrangements (Performance Share Unit Awards Outstanding) (Details) - Performance Share Units [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards, shares vesting	97,272
2023 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 47.35
Performance share awards, shares vesting percentages	110%
Performance share awards, shares vesting	47,520
2022 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 59.31
Performance share awards, shares vesting percentages	100%
Performance share awards, shares vesting	27,100
2021 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 46.15
Performance share awards, shares vesting percentages	70%
Performance share awards, shares vesting	22,652

Share-Based Compensation Arr_10

Share-Based Compensation Arrangements (Performance Share Units Activity) (Details) - Performance Share Units [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Number of Shares:
Beginning of period | shares	144,938
Granted | shares	47,520
Vested | shares	(48,010)
Forfeited | shares	(47,176)	[1]
End of period | shares	97,272
Weighted Average Grant Date Fair Value (in dollars per share):
Beginning of period | $ / shares	$ 45.41
Granted | $ / shares	47.35
Vested | $ / shares	37.37
Forfeited | $ / shares	45.25	[1]
End of period | $ / shares	$ 50.40
[1] The number of forfeited shares also includes adjustments made to performance measure estimates on outstanding awards that have not yet vested.

Business Segments (Statement of

Business Segments (Statement of Operations and Total Assets by Reportable Segment) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net interest income (expense)	[1]	$ 137,098	$ 155,990	$ 141,435
Provision for credit losses		3,200	(1,300)	(4,822)
Net interest income after provision for credit losses		133,898	157,290	146,257
Noninterest income	[1]	56,140	62,602	87,394
Depreciation and amortization expense		4,848	4,325	4,301
Other noninterest expenses		128,709	124,397	131,163
Noninterest expense		133,557	128,722	135,464
Income before income taxes		56,481	91,170	98,187
Income tax expense		8,305	19,489	21,317
Net income		48,176	71,681	76,870
Total assets		7,202,847	6,660,051	5,851,127
Expenditures for long-lived assets		5,048	6,139	3,490
Commercial Banking [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)		137,061	156,040	141,493
Provision for credit losses		3,200	(1,300)	(4,822)
Net interest income after provision for credit losses		133,861	157,340	146,315
Noninterest income		20,006	23,088	44,748
Depreciation and amortization expense		3,460	2,948	2,827
Other noninterest expenses		99,506	94,025	101,029
Noninterest expense		102,966	96,973	103,856
Income before income taxes		50,901	83,455	87,207
Income tax expense		7,028	17,557	18,575
Net income		43,873	65,898	68,632
Total assets		7,146,096	6,585,310	5,776,754
Expenditures for long-lived assets		5,013	5,475	3,246
Wealth Management Services [Member]
Segment Reporting Information [Line Items]
Net interest income (expense)		37	(50)	(58)
Provision for credit losses		0	0	0
Net interest income after provision for credit losses		37	(50)	(58)
Noninterest income		36,134	39,514	42,646
Depreciation and amortization expense		1,388	1,377	1,474
Other noninterest expenses		29,203	30,372	30,134
Noninterest expense		30,591	31,749	31,608
Income before income taxes		5,580	7,715	10,980
Income tax expense		1,277	1,932	2,742
Net income		4,303	5,783	8,238
Total assets		56,751	74,741	74,373
Expenditures for long-lived assets		$ 35	$ 664	$ 244
[1] As reported in the Consolidated Statements of Income.

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss) (Activity in Other Comprehensive Income) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Change in fair value of securities available for sale, before tax		$ 20,163		$ (163,471)		$ (21,942)
Change in fair value of securities available for sale, tax benefit (expense)		(5,721)		39,233		5,266
Change is fair value of securities available for sale		14,442		(124,238)		(16,676)
Change in fair value of cash flow hedges, before tax		1,647		(27,344)		(3,067)
Change in fair value of cash flow hedges, tax benefit (expense)		(346)		6,563		736
Change in fair value of cash flow hedges		1,301		(20,781)		(2,331)
Net losses (gains) on cash flow hedges reclassified into earnings, before tax		7,563	[1]	2,828	[2]	(310)	[3]
Net losses (gains) on cash flow hedges reclassified into earnings, tax benefit (expense)		(1,838)	[1]	(679)	[2]	75	[3]
Net losses (gains) on cash flow hedges reclassified into earnings		5,725	[1]	2,149	[2]	(235)	[3]
Net change in the fair value of cash flow hedges, before tax		9,210		(24,516)		(3,377)
Net change in the fair value of cash flow hedges, tax benefit (expense)		(2,184)		5,884		811
Net change in fair value of cash flow hedges		7,026		(18,632)		(2,566)
Defined benefit plan obligation adjustment, before tax		(6,712)		4,934		5,908
Defined benefit plan obligation adjustment, tax benefit (expense)		1,712		(1,184)		(1,417)
Defined benefit plan obligation adjustment		(5,000)		3,750		4,491
Amortization of net actuarial losses, before tax	[4]	237		1,712		2,844
Amortization of net actuarial losses, tax benefit (expense)	[4]	(58)		(411)		(683)
Amortization of net actuarial losses	[4]	179		1,301		2,161
Net change in defined benefit plan obligations, before tax		(6,475)		6,646		8,752
Net change in defined benefit plan obligations, tax benefit (expense)		1,654		(1,595)		(2,100)
Net change in defined benefit plan obligations		(4,821)		5,051		6,652
Total other comprehensive income (loss), before tax		22,898		(181,341)		(16,567)
Total other comprehensive income (loss), tax benefit (expense)		(6,251)		43,522		3,977
Total other comprehensive income (loss), net of tax		16,647		(137,819)		(12,590)
Federal Home Loan Bank of Boston [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Net losses (gains) on cash flow hedges reclassified into earnings, before tax		(1,700)		70		1,100
Interest Income [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Net losses (gains) on cash flow hedges reclassified into earnings, before tax		$ 9,200		$ 2,800		$ (1,500)
[1] The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $9.2 million reduction in interest and fees on loans and a $1.7 million reduction in FHLB interest expense. The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $2.8 million reduction in interest and fees on loans and a $70 thousand increase in FHLB interest expense. The pre-tax amounts reclassified into earnings in the Consolidated Statements of Income include a $1.5 million increase in interest and fees on loans and a $1.1 million increase in FHLB interest expense. The pre-tax amount presented above is included in other expenses in the Consolidated Statements of Income.

Other Comprehensive Income (L_4

Other Comprehensive Income (Loss) (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated other comprehensive income (loss), beginning balance	$ (157,800)
Net other comprehensive income (loss)	16,647	$ (137,819)	$ (12,590)
Accumulated other comprehensive income (loss), ending balance	(141,153)	(157,800)
Net Unrealized Gains (Losses) on AFS Securities [Member]
Accumulated other comprehensive income (loss), beginning balance	(131,033)	(6,795)	9,881
Other comprehensive income (loss) before reclassifications, net of tax	14,442	(124,238)	(16,676)
Amounts reclassified from accumulated other comprehensive income, net of tax	0	0	0
Net other comprehensive income (loss)	14,442	(124,238)	(16,676)
Accumulated other comprehensive income (loss), ending balance	(116,591)	(131,033)	(6,795)
Net Unrealized Gains (Losses) on Cash Flow Hedges [Member]
Accumulated other comprehensive income (loss), beginning balance	(22,645)	(4,013)	(1,447)
Other comprehensive income (loss) before reclassifications, net of tax	1,301	(20,781)	(2,331)
Amounts reclassified from accumulated other comprehensive income, net of tax	5,725	2,149	(235)
Net other comprehensive income (loss)	7,026	(18,632)	(2,566)
Accumulated other comprehensive income (loss), ending balance	(15,619)	(22,645)	(4,013)
Net Unrealized Gains (Losses) on Defined Benefit Plan Obligations [Member]
Accumulated other comprehensive income (loss), beginning balance	(4,122)	(9,173)	(15,825)
Other comprehensive income (loss) before reclassifications, net of tax	(5,000)	3,750	4,491
Amounts reclassified from accumulated other comprehensive income, net of tax	179	1,301	2,161
Net other comprehensive income (loss)	(4,821)	5,051	6,652
Accumulated other comprehensive income (loss), ending balance	(8,943)	(4,122)	(9,173)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated other comprehensive income (loss), beginning balance	(157,800)	(19,981)	(7,391)
Other comprehensive income (loss) before reclassifications, net of tax	10,743	(141,269)	(14,516)
Amounts reclassified from accumulated other comprehensive income, net of tax	5,904	3,450	1,926
Net other comprehensive income (loss)	16,647	(137,819)	(12,590)
Accumulated other comprehensive income (loss), ending balance	$ (141,153)	$ (157,800)	$ (19,981)

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 48,176	$ 71,681	$ 76,870
Less: dividends and undistributed earnings allocated to participating securities	(85)	(202)	(223)
Net income available to common shareholders	$ 48,091	$ 71,479	$ 76,647
Weighted average number of shares outstanding for basic EPS (in shares)	17,033,000	17,246,000	17,310,000
Dilutive effect of common stock equivalents (in shares)	29,000	135,000	145,000
Weighted average number of shares outstanding for diluted EPS (in shares)	17,062,000	17,381,000	17,455,000
Basic EPS (in dollars per share)	$ 2.82	$ 4.14	$ 4.43
Diluted EPS (in dollars per share)	$ 2.82	$ 4.11	$ 4.39
Antidilutive common stock equivalents	465,997	149,742	100,150

Commitments and Contingencies_2

Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Loan subsidies	$ 7,000
Commitment for focused community outreach and marketing efforts	2,000
Unpaid principal balance of loans repurchased	1,500	$ 1,000
Reserve for loans repurchases	$ 245	$ 265

Commitments and Contingencies_3

Commitments and Contingencies (Financial Instruments with Off Balance Sheet Risk) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Commitments to extend credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount	$ 1,185,196	$ 1,308,873
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount	$ 9,323	$ 9,028

Commitments and Contingencies_4

Commitments and Contingencies (ACL on Unfunded Commitments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	$ 2,290	$ 2,161
Provision	(350)	129
Ending Balance	1,940	2,290
Commercial Real Estate
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	1,236	1,267
Provision	(145)	(31)
Ending Balance	1,091	1,236
Commercial & Industrial
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	988	816
Provision	(166)	172
Ending Balance	822	988
Total Commercial
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	2,224	2,083
Provision	(311)	141
Ending Balance	1,913	2,224
Residential Real Estate [Member]
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	50	62
Provision	(35)	(12)
Ending Balance	15	50
Home Equity [Member]
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	0	0
Provision	0	0
Ending Balance	0	0
Other Consumer [Member]
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	16	16
Provision	(4)	0
Ending Balance	12	16
Total Consumer [Member]
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	16	16
Provision	(4)	0
Ending Balance	$ 12	$ 16

Parent Company Financial Stat_3

Parent Company Financial Statements (Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets:
Other assets	$ 200,653	$ 193,788
Total assets	7,202,847	6,660,051	$ 5,851,127
Liabilities and Shareholders' Equity
Junior subordinated debentures	22,681	22,681
Other liabilities	137,293	155,181
Total shareholders’ equity	472,686	453,669	$ 564,808	$ 534,195
Total liabilities and shareholders’ equity	7,202,847	6,660,051
Parent Company [Member]
Assets:
Cash on deposit with bank subsidiary	4,701	15,557
Dividends receivable from bank subsidiary	9,925	10,578
Other assets	1,603	1,293
Total assets	505,665	486,863
Liabilities and Shareholders' Equity
Junior subordinated debentures	22,681	22,681
Dividends payable	10,021	10,349
Other liabilities	277	164
Total shareholders’ equity	472,686	453,669
Total liabilities and shareholders’ equity	505,665	486,863
Bank [Member]
Assets:
Investment in subsidiaries at equity value:	488,751	458,750
Non-bank [Member]
Assets:
Investment in subsidiaries at equity value:	$ 685	$ 685

Parent Company Financial Stat_4

Parent Company Financial Statements (Statement of Income) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income:
Total income	[1]	$ 193,238	$ 218,592	$ 228,829
Expenses:
Interest on junior subordinated debentures		1,543	739	370
Income tax benefit		8,305	19,489	21,317
Net income		48,176	71,681	76,870
Parent Company [Member]
Income:
Other Income		(300)	0	(102)
Total income		38,568	53,260	45,641
Expenses:
Interest on junior subordinated debentures		1,543	739	370
Other expenses		681	591	622
Total expenses		2,224	1,330	992
Income before income taxes		36,344	51,930	44,649
Income tax benefit		542	273	230
Income before equity in undistributed earnings (losses) of subsidiaries		36,886	52,203	44,879
Net income		48,176	71,681	76,870
Bank [Member]
Income:
Dividends from subsidiaries		38,822	53,240	45,732
Expenses:
Equity in undistributed earnings (losses) of subsidiaries		11,290	19,565	32,045
Non-bank [Member]
Income:
Dividends from subsidiaries		46	20	11
Expenses:
Equity in undistributed earnings (losses) of subsidiaries		$ 0	$ (87)	$ (54)
[1] As reported in the Consolidated Statements of Income.

Parent Company Financial Stat_5

Parent Company Financial Statements (Statements of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 48,176	$ 71,681	$ 76,870
Adjustments to reconcile net income to net cash provided by operating activities:
Tax (expense) benefit from stock option exercises and other equity awards	(34)	78	182
Deferred income tax (benefit) expense	(3,690)	1,160	2,155
(Increase) decrease in other assets	(3,000)	(30,804)	38,935
Net cash provided by (used in) operating activities	31,603	113,006	100,812
Cash flows from investing activities:
Purchases of other equity investments, net	(263)	(375)	(650)
Net cash provided by (used in) investing activities	(550,840)	(999,041)	(240,899)
Cash flows from financing activities:
Treasury stock purchased	(8,814)	(9,479)	0
Net proceeds from stock option exercises and issuance of other equity awards, net of awards surrendered	(754)	(821)	(177)
Cash dividends paid	(38,631)	(37,647)	(36,349)
Net cash provided by (used in) financing activities	490,999	825,964	116,312
Net increase (decrease) in cash and cash equivalents	(28,238)	(60,071)	(23,775)
Cash and cash equivalents at beginning of year	118,422	178,493	202,268
Cash and cash equivalents at end of year	90,184	118,422	178,493
Parent Company [Member]
Cash flows from operating activities:
Net income	48,176	71,681	76,870
Adjustments to reconcile net income to net cash provided by operating activities:
Tax (expense) benefit from stock option exercises and other equity awards	(34)	78	182
Deferred income tax (benefit) expense	(56)	5	(24)
(Increase) decrease in dividend receivable	653	2,386	(1,128)
(Increase) decrease in other assets	8	(175)	50
Increase (decrease) in accrued expenses and other liabilities	113	93	31
Other, net	36	(97)	(182)
Net cash provided by (used in) operating activities	37,606	54,493	43,808
Cash flows from investing activities:
Repayment of equity investment in subsidiary	0	1,096	0
Purchases of other equity investments, net	(263)	(375)	(650)
Net cash provided by (used in) investing activities	(263)	721	(650)
Cash flows from financing activities:
Treasury stock purchased	(8,814)	(9,479)	0
Net proceeds from stock option exercises and issuance of other equity awards, net of awards surrendered	(754)	(821)	(177)
Cash dividends paid	(38,631)	(37,647)	(36,349)
Net cash provided by (used in) financing activities	(48,199)	(47,947)	(36,526)
Net increase (decrease) in cash and cash equivalents	(10,856)	7,267	6,632
Cash and cash equivalents at beginning of year	15,557	8,290	1,658
Cash and cash equivalents at end of year	4,701	15,557	8,290
Bank [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings (losses) of subsidiaries	(11,290)	(19,565)	(32,045)
Non-bank [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings (losses) of subsidiaries	$ 0	$ 87	$ 54