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Loans and Loans Held for Sale - Summary of Restructured Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | $ 17,575 | $ 22,651
Commercial real estate | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,300 | 4,791
Commercial and industrial | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 11,221 | 13,620
Commercial construction | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 2,087 | 2,330
Business banking | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,721 | 260
Consumer real estate | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,246 | 1,646
Other consumer | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 0 | 4
Total TDRs |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 31,695 | 46,748
Total TDRs | Commercial real estate | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,697 | 16,668
Total TDRs | Commercial and industrial | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 15,637 | 16,975
Total TDRs | Commercial construction | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 4,277 | 3,267
Total TDRs | Business banking | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 2,554 | 1,933
Total TDRs | Consumer real estate | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 7,527 | 7,900
Total TDRs | Other consumer | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 3 | 5
Performing TDRs |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 9,921 | 17,460
Performing TDRs | Commercial real estate | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 0 | 14
Performing TDRs | Commercial and industrial | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 748 | 7,090
Performing TDRs | Commercial construction | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 2,190 | 3,267
Performing TDRs | Business banking | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 858 | 1,503
Performing TDRs | Consumer real estate | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 6,122 | 5,581
Performing TDRs | Other consumer | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 3 | 5
Nonperforming TDRs |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans |  | 29,289
Nonperforming TDRs | Commercial real estate | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,697 | 16,654
Nonperforming TDRs | Commercial and industrial | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 14,889 | 9,885
Nonperforming TDRs | Commercial construction | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 2,087 | 0
Nonperforming TDRs | Business banking | Commercial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,696 | 430
Nonperforming TDRs | Consumer real estate | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | 1,405 | 2,319
Nonperforming TDRs | Other consumer | Consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Restructured loans | $ 0 | $ 0

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