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Loans - Allowance for Loan Losses (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) loan | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest | $ 26,956 | $ 28,446 | $ 26,956 | $ 28,446 | $ 29,232
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance | 27,010 | 26,300 | 29,232 |  |
Charge-offs | (444) | (392) | (1,520) |  |
Recoveries | 291 | 267 | 830 |  |
Provision | 99 | 2,271 | (286) | 8,083 |
Allowance for Loan Losses, Ending balance | $ 26,956 | 28,446 | $ 26,956 | 28,446 |
Number of loans individually evaluated for impairment | loan | 6 |  | 6 |  |
Number of loans with an allowance for credit loss on loans individually evaluated for impairment | loan | 1 |  | 1 |  |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |  |
Ending Loan Balance - Collectively Evaluated | $ 2,646,821 | 2,589,729 | $ 2,646,821 | 2,589,729 | 2,592,327
Allowance for loan losses - Loans Collectively Evaluated | 26,340 | 28,400 | 26,340 | 28,400 | 29,191
Ending Loan Balance - Individually Evaluated | 7,930 | 2,726 | 7,930 | 2,726 | 2,703
Allowance for loan losses - Loans Individually Evaluated | 616 | 46 | 616 | 46 | 41
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | (1,300)
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | (1,300) |  |
Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 27,932
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 27,932 |  |
Consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest | 2,288 | 11,145 | 2,288 | 11,145 | 11,562
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance | 2,443 | 10,639 | 11,562 |  |
Charge-offs | (427) | (370) | (1,480) |  |
Recoveries | 291 | 267 | 830 |  |
Provision | (19) | 609 | 759 |  |
Allowance for Loan Losses, Ending balance | 2,288 | 11,145 | 2,288 | 11,145 |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |  |
Ending Loan Balance - Collectively Evaluated | 921,189 | 849,402 | 921,189 | 849,402 | 859,657
Allowance for loan losses - Loans Collectively Evaluated | 2,288 | 11,145 | 2,288 | 11,145 | 11,562
Ending Loan Balance - Individually Evaluated | 0 | 124 | 0 | 124 | 111
Allowance for loan losses - Loans Individually Evaluated | 0 | 0 | 0 | 0 | 0
Consumer | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | (9,383)
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | (9,383) |  |
Consumer | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 2,179
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 2,179 |  |
Residential |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest | 8,573 | 5,613 | 8,573 | 5,613 | 5,507
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance | 8,720 | 5,383 | 5,507 |  |
Charge-offs | 0 | 0 | (3) |  |
Recoveries | 0 | 0 | 0 |  |
Provision | (147) | 230 | (866) |  |
Allowance for Loan Losses, Ending balance | 8,573 | 5,613 | 8,573 | 5,613 |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |  |
Ending Loan Balance - Collectively Evaluated | 929,614 | 924,348 | 929,614 | 924,348 | 921,504
Allowance for loan losses - Loans Collectively Evaluated | 8,573 | 5,585 | 8,573 | 5,585 | 5,485
Ending Loan Balance - Individually Evaluated | 676 | 1,427 | 676 | 1,427 | 1,417
Allowance for loan losses - Loans Individually Evaluated | 0 | 28 | 0 | 28 | 22
Residential | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 3,935
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 3,935 |  |
Residential | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 9,442
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 9,442 |  |
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest | 2,424 | 2,319 | 2,424 | 2,319 | 2,173
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance | 2,241 | 1,917 | 2,173 |  |
Charge-offs | (17) | (17) | (37) |  |
Recoveries | 0 | 0 | 0 |  |
Provision | 200 | 419 | (1,796) |  |
Allowance for Loan Losses, Ending balance | 2,424 | 2,319 | 2,424 | 2,319 |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |  |
Ending Loan Balance - Collectively Evaluated | 188,191 | 275,874 | 188,191 | 275,874 | 240,507
Allowance for loan losses - Loans Collectively Evaluated | 2,424 | 2,301 | 2,424 | 2,301 | 2,154
Ending Loan Balance - Individually Evaluated | 0 | 47 | 0 | 47 | 47
Allowance for loan losses - Loans Individually Evaluated | 0 | 18 | 0 | 18 | 19
Commercial | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 2,084
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 2,084 |  |
Commercial | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 4,257
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 4,257 |  |
Commercial Real Estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest | 13,671 | 9,369 | 13,671 | 9,369 | 9,990
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance | 13,606 | 8,361 | 9,990 |  |
Charge-offs | 0 | (5) | 0 |  |
Recoveries | 0 | 0 | 0 |  |
Provision | 65 | 1,013 | 1,617 |  |
Allowance for Loan Losses, Ending balance | 13,671 | 9,369 | 13,671 | 9,369 |
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |  |  |  |  |
Ending Loan Balance - Collectively Evaluated | 607,827 | 540,105 | 607,827 | 540,105 | 570,659
Allowance for loan losses - Loans Collectively Evaluated | 13,055 | 9,369 | 13,055 | 9,369 | 9,990
Ending Loan Balance - Individually Evaluated | 7,254 | 1,128 | 7,254 | 1,128 | 1,128
Allowance for loan losses - Loans Individually Evaluated | $ 616 | $ 0 | 616 | $ 0 | 0
Commercial Real Estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | 2,064
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | 2,064 |  |
Commercial Real Estate | Cumulative Effect, Period of Adoption, Adjusted Balance |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Financing receivable, allowance for credit loss, excluding accrued interest |  |  |  |  | $ 12,054
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for Loan Losses, Beginning balance |  |  | $ 12,054 |  |

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