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Regulatory Restrictions - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Compliance With Regulatory Capital Requirements Under Banking Regulations [Abstract]
Cash and due from banks held as collateral	$ 14.6	$ 7.8
Dividend approval threshold, years	2 years

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- Definition

Cash and due from banks held as collateral for collateralized swap positions.

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- Definition

Compliance With Regulatory Capital Requirements Under Banking Regulations

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- Definition

Time period preceding current year that is considered when paying dividends.

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No definition available.

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