Current Accounting Developments - Transition Impact on Allowance for Credit Losses - General Information (Details) - USD ($)		6 Months Ended
	Apr. 01, 2022	Jun. 30, 2022	Mar. 31, 2022	Jan. 01, 2022	Dec. 31, 2021	Jun. 30, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan and lease losses OLD					$ 14,256,000
Allowance for credit losses on loans and leases		$ 22,802,000	$ 22,530,000			$ 16,421,000
Retained earnings		233,179,000			234,410,000
Investment securities available for sale (before ASU 2016-13)					973,314,000
Investment securities available for sale		864,178,000
Accrued interest receivable, loans		5,400,000			6,800,000
Accrued interest reversed against interest income		0
Available for Sale Security, Reclassification to Held for Sale	$ 162,100,000
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Writeoff	$ 20,000.00
Other Assets [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accrued interest receivable		5,400,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans and leases					$ 9,454,000
Available-for-Sale Securities [Member] | Other Assets [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accrued interest receivable		6,000,000.0
Held-to-Maturity Securities [Member] | Other Assets [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accrued interest receivable		$ 800,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans and leases				$ 9,500,000
Off balance sheet credit loss				900,000
Retained earnings				7,300,000
Investment securities available for sale				$ 0