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Loans and the Allowance for Credit Losses (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Loans and the Allowance for Credit Losses (Details) [Line Items]
Commercial loan amount	$ 54,300,000	$ 93,100,000
Loan balance amount	2,500,000,000	2,500,000,000
TDRs total	76,500,000	79,500,000
Nonaccrual status	29,100,000	35,900,000
Restructured terms	47,400,000	43,600,000
Specific allowance related to TDRs	8,349,000	3,654,000
Principal paydown	500,000
Troubled Debt Restructuring [Member]
Loans and the Allowance for Credit Losses (Details) [Line Items]
Specific allowance related to TDRs	$ 9,100,000	$ 10,400,000

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