Recent Accounting Pronouncements (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,085,564,000			$ 1,069,226,000
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,085,564,000			1,069,226,000
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	84,602,000	$ 87,206,000		85,379,000	$ 83,961,000	$ 81,448,000		$ 83,197,000
Non performing loan decrease ASU Impact	20,100,000
Individually evaluated loans decrease ASU impact	11,500,000
Retained Earnings [Member]
Accounting Standards Update and Change in Accounting Principle [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	896,627,000	876,830,000	$ 862,518,000	847,235,000	839,207,000	814,241,000	$ 797,033,000	776,294,000
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 896,627,000	$ 876,830,000	$ 862,518,000	847,235,000	$ 839,207,000	$ 814,241,000	$ 797,033,000	$ 776,294,000
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest				383,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2022-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred Tax Assets, Tax Deferred Expense				80,000
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest				383,000
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings [Member] | Accounting Standards Update 2022-02 [Member]
Accounting Standards Update and Change in Accounting Principle [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest				303,000
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest				$ 303,000