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Loans and Allowance - Narrative (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) loan | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) | Jan. 01, 2022 USD ($)
Receivables [Abstract] |  |  |  |
Loans held for sale | $ 3,938,000 |  | $ 11,187,000 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 9,356,241,000 |  | 9,241,861,000 |
Interest income recognized on non-accrual loans | $ 0 | $ 0 |  |
Standby letters of credit usual term | 2 years |  |  |
Off-balance sheet commitments | $ 20,500,000 |  | 20,500,000 |
Cumulative effect of ASC 326 adoption |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Off-balance sheet commitments |  |  |  | $ 20,500,000
Past Due |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 51,600,000 |  | 34,700,000 |
Increase in past due loans | 16,900,000 |  |  |
30-59 Days Past Due |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 28,580,000 |  | 15,006,000 |
Increase in past due loans |  |  | 13,600,000 |
PPP loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | 48,700,000 |  | 106,600,000 |
Commercial and Industrial and Non-owner-occupied Commercial Real Estate Loans | 30-59 Days Past Due |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 20,100,000 |  |  |
Number of loans | loan | 2 |  |  |
Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of troubled debt restructured loans | 10000.00% | 6400.00% |  |
Residential |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 1,226,695,000 |  | 1,159,127,000 |
Mortgage loans with formal foreclosure proceedings | 3,900,000 | $ 3,300,000 |  |
Residential | 30-59 Days Past Due |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 3,697,000 |  | $ 3,979,000 |

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