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Loans and Allowance for Loan Losses - Past due aging analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Past due aging analysis of loans |  |
Accruing Current | $ 1,928,658 | $ 1,969,285
Nonaccrual | 4,756 | 5,050
Loans and Leases Receivable, Gross, Total | 1,937,345 | 1,979,375
30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 3,931 | 5,010
90 Days or More Past Due |  |
Past due aging analysis of loans |  |
Past due |  | 30
Commercial |  |
Past due aging analysis of loans |  |
Accruing Current | 1,281,187 | 1,291,918
Nonaccrual | 4,089 | 4,419
Loans and Leases Receivable, Gross, Total | 1,287,953 | 1,299,316
Commercial | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 2,677 | 2,949
Commercial | 90 Days or More Past Due |  |
Past due aging analysis of loans |  |
Past due |  | 30
Commercial | Commercial and industrial |  |
Past due aging analysis of loans |  |
Accruing Current | 675,755 | 689,340
Nonaccrual | 2,199 | 1,988
Loans and Leases Receivable, Gross, Total | 678,029 | 691,858
Commercial | Commercial and industrial | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 75 | 500
Commercial | Commercial and industrial | 90 Days or More Past Due |  |
Past due aging analysis of loans |  |
Past due |  | 30
Commercial | Real estate construction |  |
Past due aging analysis of loans |  |
Accruing Current | 40,473 | 44,451
Loans and Leases Receivable, Gross, Total | 40,473 | 44,451
Commercial | Commercial real estate |  |
Past due aging analysis of loans |  |
Accruing Current | 564,959 | 558,127
Nonaccrual | 1,890 | 2,431
Loans and Leases Receivable, Gross, Total | 569,451 | 563,007
Commercial | Commercial real estate | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 2,602 | 2,449
Consumer |  |
Past due aging analysis of loans |  |
Accruing Current | 647,471 | 677,367
Nonaccrual | 667 | 631
Loans and Leases Receivable, Gross, Total | 649,392 | 680,059
Consumer | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 1,254 | 2,061
Consumer | Residential | Real estate first mortgage |  |
Past due aging analysis of loans |  |
Accruing Current | 453,574 | 461,179
Nonaccrual | 432 | 439
Loans and Leases Receivable, Gross, Total | 454,958 | 463,370
Consumer | Residential | Real estate first mortgage | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 952 | 1,752
Consumer | Residential | Real estate junior lien |  |
Past due aging analysis of loans |  |
Accruing Current | 129,917 | 143,060
Nonaccrual | 198 | 165
Loans and Leases Receivable, Gross, Total | 130,299 | 143,416
Consumer | Residential | Real estate junior lien | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | 184 | 191
Consumer | Other revolving and installment |  |
Past due aging analysis of loans |  |
Accruing Current | 63,980 | 73,128
Nonaccrual | 37 | 27
Loans and Leases Receivable, Gross, Total | 64,135 | 73,273
Consumer | Other revolving and installment | 30 - 89 Days Past Due |  |
Past due aging analysis of loans |  |
Past due | $ 118 | $ 118

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