Securities - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($)
Debt Securities, Available-for-sale [Line Items]
Tax provision related to net realized gains	$ 164	$ 460	$ 31
Number of securities holdings | security	0	0
Shareholders equity, percentage	10.00%	10.00%
Proceeds from sale of securities, operating activities	$ 0	$ 5,900	301
Net realized gains on trading securities	0	75	16
Realized gains on Visa Class B shares	0	0	$ 463
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Securities pledged to public deposits	$ 461,500	$ 453,400