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Loans and Credit Quality - Newly Restructured Loans by Concession (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2017 USD ($) contract
Financing Receivable, Modifications [Line Items] |
Pre-modification, number of contracts | contract | 3
Pre-modification, total modification | $ 12,953
Post-modification, number of contracts | contract | 3
Post-modification, total modification | $ 11,382
AQR Special Mention |
Financing Receivable, Modifications [Line Items] |
Pre-modification, number of contracts | contract | 1
Pre-modification, total modification | $ 2,078
Post-modification, number of contracts | contract | 1
Post-modification, total modification | $ 2,078
Commercial | AQR Substandard |
Financing Receivable, Modifications [Line Items] |
Pre-modification, number of contracts | contract | 2
Pre-modification, total modification | $ 10,875
Post-modification, number of contracts | contract | 2
Post-modification, total modification | $ 9,304
Rate Modification |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Rate Modification | AQR Special Mention |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Rate Modification | Commercial | AQR Substandard |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Term Modification |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 12,743
Post-modification, total modification | 11,177
Term Modification | AQR Special Mention |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 2,078
Post-modification, total modification | 2,078
Term Modification | Commercial | AQR Substandard |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 10,665
Post-modification, total modification | 9,099
Payment Modification |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 210
Post-modification, total modification | 205
Payment Modification | AQR Special Mention |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Payment Modification | Commercial | AQR Substandard |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 210
Post-modification, total modification | 205
Combination Modification |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Combination Modification | AQR Special Mention |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | 0
Combination Modification | Commercial | AQR Substandard |
Financing Receivable, Modifications [Line Items] |
Pre-modification, total modification | 0
Post-modification, total modification | $ 0

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