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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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