Regulatory Requirements and Restrictions - Trust Preferred Securities (Details) - Trust Preferred Securities Subject to Mandatory Redemption - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2007
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Securities issued			$ 25,000
Securities included in Tier One Capital	$ 25,000	$ 25,000