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Securities, Gains (Loss) on Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Security	Jun. 30, 2021 USD ($) Security	Dec. 31, 2021 USD ($)
Gains (Loss) on Sales of Securities [Abstract]
Net securities gain (loss)	$ (225)	$ 280	$ (126)	$ 112
Realized pre-tax loss on sales and calls of AFS securities	1		1
Realized pre-tax gain on sales and calls of AFS securities				60
Unrealized (loss) gain from fair value adjustment of equity securities	(224)	280	(125)	$ 52
Equity Securities at Fair Value [Abstract]
Equity securities at fair value	2,128		2,128		$ 2,253
Amortized cost of securities sold under agreements to repurchase	316,600		316,600		314,100
Asset Pledged as Collateral [Member] | Public Deposits and for Other Purposes [Member]
Equity Securities at Fair Value [Abstract]
Securities	528,500		528,500		$ 545,600
Visa Class B Restricted Stock [Member]
Equity Securities at Fair Value [Abstract]
Equity securities at fair value	2,100		$ 2,100
Increase (decrease) in fair value of equity securities	$ (224)	$ 280
Number of equity securities sold (in shares) | Security			0	0

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Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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