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Loans and Loans Held for Sale - Restructured Loans by Type of Concession (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 53 | 46
Pre-Modification Outstanding Recorded Investment | [1] | $ 32,446 | $ 12,672
Restructured loans | [1] | 32,206 | 11,384
Total Difference in Recorded Investment |  | $ (240) | $ (1,288)
Maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 3
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 1,024
Restructured loans | [1] | 0 | 345
Total Difference in Recorded Investment |  | $ 0 | $ (679)
Maturity date extension and interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 4,902 | $ 47
Restructured loans | [1] | 4,280 | 46
Total Difference in Recorded Investment |  | $ (622) | $ (1)
Principal deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 4 | 5
Pre-Modification Outstanding Recorded Investment | [1] | $ 24,767 | $ 4,905
Restructured loans | [1] | 24,309 | 4,473
Total Difference in Recorded Investment |  | $ (458) | $ (432)
Principal deferral and maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 7 | 6
Pre-Modification Outstanding Recorded Investment | [1] | $ 950 | $ 5,355
Restructured loans | [1] | 933 | 5,341
Total Difference in Recorded Investment |  | $ (17) | $ (14)
Interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 1
Pre-Modification Outstanding Recorded Investment | [1] | $ 190 | $ 120
Restructured loans | [1] | 188 | 120
Total Difference in Recorded Investment |  | $ (2) | $ 0
Below market interest rate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 569 | $ 0
Restructured loans | [1] | 1,519 | 0
Total Difference in Recorded Investment |  | $ 950 | $ 0
Consumer bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | [2] | 36 | 29
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 1,068 | $ 1,221
Restructured loans | [1],[2] | 977 | 1,059
Total Difference in Recorded Investment | [2] | $ (91) | $ (162)
Commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 7 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 24,672 | $ 346
Restructured loans | [1] | 25,159 | 269
Total Difference in Recorded Investment |  | $ 486 | $ (77)
Commercial real estate | Maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 1
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 256
Restructured loans | [1] | 0 | 179
Total Difference in Recorded Investment |  | $ 0 | $ (77)
Commercial real estate | Maturity date extension and interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 150 | $ 0
Restructured loans | [1] | 145 | 0
Total Difference in Recorded Investment |  | $ (6) | $ 0
Commercial real estate | Principal deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 3 | 1
Pre-Modification Outstanding Recorded Investment | [1] | $ 23,517 | $ 90
Restructured loans | [1] | 23,059 | 90
Total Difference in Recorded Investment |  | $ (458) | $ 0
Commercial real estate | Principal deferral and maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 436 | $ 0
Restructured loans | [1] | 436 | 0
Total Difference in Recorded Investment |  | $ 0 | $ 0
Commercial real estate | Below market interest rate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 569 | $ 0
Restructured loans | [1] | 1,519 | 0
Total Difference in Recorded Investment |  | $ 950 | $ 0
Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 3 | 12
Pre-Modification Outstanding Recorded Investment | [1] | $ 6,294 | $ 10,938
Restructured loans | [1] | 5,661 | 9,890
Total Difference in Recorded Investment |  | $ (633) | $ (1,048)
Commercial and industrial | Maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 768
Restructured loans | [1] | 0 | 166
Total Difference in Recorded Investment |  | $ 0 | $ (602)
Commercial and industrial | Maturity date extension and interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 4,751 | $ 0
Restructured loans | [1] | 4,136 | 0
Total Difference in Recorded Investment |  | $ (616) | $ 0
Commercial and industrial | Principal deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 4
Pre-Modification Outstanding Recorded Investment | [1] | $ 1,250 | $ 4,815
Restructured loans | [1] | 1,250 | 4,383
Total Difference in Recorded Investment |  | $ 0 | $ (432)
Commercial and industrial | Principal deferral and maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 6
Pre-Modification Outstanding Recorded Investment | [1] | $ 292 | $ 5,355
Restructured loans | [1] | 275 | 5,341
Total Difference in Recorded Investment |  | $ (17) | $ (14)
Residential mortgage |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 6 | 5
Pre-Modification Outstanding Recorded Investment | [1] | $ 348 | $ 387
Restructured loans | [1] | 340 | 374
Total Difference in Recorded Investment |  | $ (9) | $ (13)
Residential mortgage | Principal deferral and maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 3 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 183 | $ 0
Restructured loans | [1] | 183 | 0
Total Difference in Recorded Investment |  | $ 0 | $ 0
Residential mortgage | Consumer bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | [2] | 3 | 5
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 165 | $ 387
Restructured loans | [1],[2] | 157 | 374
Total Difference in Recorded Investment | [2] | $ (9) | $ (13)
Home equity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 33 | 25
Pre-Modification Outstanding Recorded Investment | [1] | $ 1,116 | $ 978
Restructured loans | [1] | 1,037 | 847
Total Difference in Recorded Investment |  | $ (79) | $ (131)
Home equity | Maturity date extension and interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 47
Restructured loans | [1] | 0 | 46
Total Difference in Recorded Investment |  | $ 0 | $ (1)
Home equity | Principal deferral and maturity date extension |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 39 | $ 0
Restructured loans | [1] | 39 | 0
Total Difference in Recorded Investment |  | $ 0 | $ 0
Home equity | Interest rate reduction |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 2 | 1
Pre-Modification Outstanding Recorded Investment | [1] | $ 190 | $ 120
Restructured loans | [1] | 188 | 120
Total Difference in Recorded Investment |  | $ (2) | $ 0
Home equity | Consumer bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | [2] | 29 | 22
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 886 | $ 811
Restructured loans | [1],[2] | 810 | 681
Total Difference in Recorded Investment | [2] | $ (77) | $ (130)
Installment and other consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | [2] | 4 | 2
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 16 | $ 23
Restructured loans | [1],[2] | 11 | 4
Total Difference in Recorded Investment | [2] | $ (5) | $ (19)
[1] | Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end.
[2] | Consumer bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.

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