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Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | $ 72 | $ 149
Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 161 | 71
Derivative liabilities | 34 | 71
Interest rate lock commitments |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 1,508 | 1,137
Retail interest rate contracts |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities |  | 78
Not Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 1,542 | 1,208
Derivative liabilities | 72 | 149
Not Designated as Hedging Instrument | Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 34 | 71
Derivative liabilities | 34 | 71
Not Designated as Hedging Instrument | Interest rate swaps | Other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 34 | 71
Not Designated as Hedging Instrument | Interest rate swaps | Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 34 | 71
Not Designated as Hedging Instrument | Interest rate lock commitments | Other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 1,508 | 1,137
Not Designated as Hedging Instrument | Retail interest rate contracts |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | 38 | 78
Not Designated as Hedging Instrument | Retail interest rate contracts | Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative liabilities | $ 38 | $ 78

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