Nature of Operations and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - CECL adoption $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Allowance for credit losses
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption	$ 11.6
Liability for potential losses related to unfunded portion of loans and commitments Member
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption	8.7
After-tax effect on retained earnings Member
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption	$ 14.2