Securities, Gains (Loss) on Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Gains (Loss) on Sales of Securities [Abstract]
Net securities gain (loss)	$ 355	$ (159)	$ 738	$ (285)
Realized pre-tax gain (loss) on sales and calls of AFS securities			4	(1)
Unrealized (loss) gain from fair value adjustment of equity securities	355	(159)	734	$ (284)
Equity Securities at Fair Value [Abstract]
Equity securities at fair value	2,900		2,900		$ 2,166
Amortized cost of securities sold under agreements to repurchase	350,200		350,200		316,900
Asset Pledged as Collateral [Member] | Public Deposits and for Other Purposes [Member]
Equity Securities at Fair Value [Abstract]
Securities	752,200		752,200		$ 725,000
Visa Class B Restricted Stock [Member]
Equity Securities at Fair Value [Abstract]
Equity securities at fair value	2,900		$ 2,900
Increase (decrease) in fair value of equity securities	$ 355	$ (159)
Number of equity securities sold (in shares)			0	0