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Loans and Allowance for Credit Losses - Concentrations of Credit Narrative (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans, at amortized cost | $ 2,255,645 | $ 2,088,556
Commercial real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Percentage of loans by class to all loans | 70.00% | 61.00%
Loans secured by real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Percentage of loans by class to all loans | 86.00% | 77.00%
Loans secured by real estate | Commercial | Small Business Administration Paycheck Protection Program |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans, at amortized cost | $ 180,400 |

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