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Loans and Loans Held for Sale - Restructured Loans By Segment and Type of Concession (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) loan | Jun. 30, 2018 USD ($) loan | Jun. 30, 2019 USD ($) loan | Jun. 30, 2018 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 14 | 10 | 25 | 31
Pre-Modification Outstanding Recorded Investment | [1] | $ 6,504,000 | $ 4,937,000 | $ 11,577,000 | $ 11,814,000
Post-Modification Outstanding Recorded Investment | [1] | 6,427,000 | 5,155,000 | 11,248,000 | 16,375,000
Total Difference in Recorded Investment |  | $ (76,000) | $ 218,000 | $ (328,000) | $ 4,561,000
Maturity date extension |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 1 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 1,322,000 | $ 0 | $ 1,322,000 | $ 768,000
Post-Modification Outstanding Recorded Investment | [1] | 1,311,000 | 0 | 1,311,000 | 582,000
Total Difference in Recorded Investment |  | $ (11,000) | $ 0 | $ (11,000) | $ (186,000)
Maturity date extension and interest rate reduction |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 2 | 2 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 151,000 | $ 47,000 | $ 4,902,000 | $ 47,000
Post-Modification Outstanding Recorded Investment | [1] | 148,000 | 47,000 | 4,677,000 | 47,000
Total Difference in Recorded Investment |  | $ (3,000) | $ 0 | $ (225,000) | $ 0
Principal forgiveness |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 4,690,000 | $ 0 | $ 4,690,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 4,631,000 | 0 | 4,631,000 | 4,690,000
Total Difference in Recorded Investment |  | $ (59,000) | $ 0 | $ (59,000) | $ 4,690,000
Principal deferral |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 0 | 3 | 0 | 3
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 4,815,000 | $ 0 | $ 4,815,000
Post-Modification Outstanding Recorded Investment | [1] | 0 | 5,034,000 | 0 | 5,034,000
Total Difference in Recorded Investment |  | $ 0 | $ 219,000 | $ 0 | $ 219,000
Principal deferral and Maturity date extension |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 0 | 6
Pre-Modification Outstanding Recorded Investment | [1] |  |  | $ 0 | $ 5,355,000
Post-Modification Outstanding Recorded Investment | [1] |  |  | 0 | 5,229,000
Total Difference in Recorded Investment |  |  |  | $ 0 | $ (126,000)
Chapter 7 bankruptcy |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan | [2] | 10 | 5 | 19 | 18
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 232,000 | $ 75,000 | $ 473,000 | $ 829,000
Post-Modification Outstanding Recorded Investment | [1],[2] | 229,000 | 74,000 | 440,000 | 793,000
Total Difference in Recorded Investment | [2] | $ (3,000) | $ (1,000) | $ (33,000) | $ (36,000)
Interest rate reduction |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 2 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 109,000 | $ 0 | $ 190,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 108,000 | 0 | 189,000 | 0
Total Difference in Recorded Investment |  | $ 0 | $ 0 | $ 0 | $ 0
Commercial real estate |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 3 | 0 | 3 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 6,163,000 | $ 0 | $ 6,163,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 6,090,000 | 0 | 6,090,000 | 0
Total Difference in Recorded Investment |  | $ (73,000) | $ 0 | $ (73,000) | $ 0
Commercial real estate | Maturity date extension |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 1,322,000 | $ 0 | $ 1,322,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 1,311,000 | 0 | 1,311,000 | 0
Total Difference in Recorded Investment |  | $ (11,000) | $ 0 | $ (11,000) | $ 0
Commercial real estate | Maturity date extension and interest rate reduction |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 151,000 | $ 0 | $ 151,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 148,000 | 0 | 148,000 | 0
Total Difference in Recorded Investment |  | $ (3,000) | $ 0 | $ (3,000) | $ 0
Commercial real estate | Principal forgiveness |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 4,690,000 | $ 0 | $ 4,690,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 4,631,000 | 0 | 4,631,000 | 0
Total Difference in Recorded Investment |  | $ (59,000) | $ 0 | $ (59,000) | $ 0
Commercial and industrial |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 0 | 3 | 1 | 11
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 4,815,000 | $ 4,751,000 | $ 10,938,000
Post-Modification Outstanding Recorded Investment | [1] | 0 | 5,034,000 | 4,529,000 | 10,845,000
Total Difference in Recorded Investment |  | $ 0 | $ 219,000 | $ (222,000) | $ (93,000)
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 | $ 768,000
Post-Modification Outstanding Recorded Investment | [1] |  |  | 0 | 582,000
Total Difference in Recorded Investment |  |  |  | $ 0 | $ (186,000)
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] |  |  | $ 4,751,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] |  |  | 4,529,000 | 0
Total Difference in Recorded Investment |  |  |  | $ (222,000) | $ 0
Commercial and industrial | Principal deferral |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 0 | 3 | 0 | 3
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 4,815,000 | $ 0 | $ 4,815,000
Post-Modification Outstanding Recorded Investment | [1] | 0 | 5,034,000 | 0 | 5,034,000
Total Difference in Recorded Investment |  | $ 0 | $ 219,000 | $ 0 | $ 219,000
Commercial and industrial | Principal deferral and Maturity date extension |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  |  |  | 0 | 6
Pre-Modification Outstanding Recorded Investment | [1] |  |  | $ 0 | $ 5,355,000
Post-Modification Outstanding Recorded Investment | [1] |  |  | 0 | 5,229,000
Total Difference in Recorded Investment |  |  |  | $ 0 | $ (126,000)
Residential mortgage |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 2 | 1 | 3 | 3
Pre-Modification Outstanding Recorded Investment | [1] | $ 116,000 | $ 41,000 | $ 166,000 | $ 199,000
Post-Modification Outstanding Recorded Investment | [1] | 115,000 | 41,000 | 163,000 | 196,000
Total Difference in Recorded Investment |  | $ (1,000) | $ 0 | $ (3,000) | $ (3,000)
Residential mortgage | Chapter 7 bankruptcy |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan | [2] | 2 | 1 | 3 | 3
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 116,000 | $ 41,000 | $ 166,000 | $ 199,000
Post-Modification Outstanding Recorded Investment | [1],[2] | 115,000 | 41,000 | 163,000 | 196,000
Total Difference in Recorded Investment | [2] | $ (1,000) | $ 0 | $ (3,000) | $ (3,000)
Home equity |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 7 | 4 | 15 | 13
Pre-Modification Outstanding Recorded Investment | [1] | $ 216,000 | $ 73,000 | $ 488,000 | $ 652,000
Post-Modification Outstanding Recorded Investment | [1] | 214,000 | 73,000 | 457,000 | 621,000
Total Difference in Recorded Investment |  | $ (3,000) | $ 0 | $ (31,000) | $ (31,000)
Home equity | Maturity date extension and interest rate reduction |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 0 | 2 | 0 | 2
Pre-Modification Outstanding Recorded Investment | [1] | $ 0 | $ 47,000 | $ 0 | $ 47,000
Post-Modification Outstanding Recorded Investment | [1] | 0 | 47,000 | 0 | 47,000
Total Difference in Recorded Investment |  | $ 0 | $ 0 | $ 0 | $ 0
Home equity | Chapter 7 bankruptcy |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan | [2] | 6 | 2 | 13 | 11
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 107,000 | $ 26,000 | $ 298,000 | $ 605,000
Post-Modification Outstanding Recorded Investment | [1],[2] | 105,000 | 26,000 | 268,000 | 574,000
Total Difference in Recorded Investment | [2] | $ (2,000) | $ 0 | $ (30,000) | $ (31,000)
Home equity | Interest rate reduction |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 1 | 0 | 2 | 0
Pre-Modification Outstanding Recorded Investment | [1] | $ 109,000 | $ 0 | $ 190,000 | $ 0
Post-Modification Outstanding Recorded Investment | [1] | 108,000 | 0 | 189,000 | 0
Total Difference in Recorded Investment |  | $ (1,000) | $ 0 | $ (1,000) | $ 0
Installment and other consumer |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan |  | 2 | 2 | 3 | 4
Pre-Modification Outstanding Recorded Investment | [1] | $ 9,000 | $ 8,000 | $ 9,000 | $ 25,000
Post-Modification Outstanding Recorded Investment | [1] | 9,000 | 7,000 | 9,000 | 23,000
Total Difference in Recorded Investment |  | $ 0 | $ (1,000) | $ 0 | $ (2,000)
Installment and other consumer | Chapter 7 bankruptcy |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |
Number of Loans | loan | [2] | 2 | 2 | 3 | 4
Pre-Modification Outstanding Recorded Investment | [1],[2] | $ 9,000 | $ 8,000 | $ 9,000 | $ 25,000
Post-Modification Outstanding Recorded Investment | [1],[2] | 9,000 | 7,000 | 9,000 | 23,000
Total Difference in Recorded Investment | [2] | $ 0 | $ (1,000) | $ 0 | $ (2,000)
[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] | Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.

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