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Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Total available-for-sale securities | $ 468,997 | $ 473,275
Loans held-for-sale (mandatory pricing agreements) | 23,493 | 23,571
Derivative, fair value | (72) | (354)
IRLCs |  |
Derivative, fair value | 383 | 551
Loans held-for-sale (mandatory pricing agreements) |  |
Loans held-for-sale (mandatory pricing agreements) | 23,493 | 23,571
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 2,932
Loans held-for-sale (mandatory pricing agreements) |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | IRLCs |  |
Derivative, fair value | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held-for-sale (mandatory pricing agreements) |  |
Loans held-for-sale (mandatory pricing agreements) | 0 | 0
Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities | 468,997 | 470,343
Loans held-for-sale (mandatory pricing agreements) |  | 27,836
Significant Other Observable Inputs (Level 2) | IRLCs |  |
Derivative, fair value | 0 | 0
Significant Other Observable Inputs (Level 2) | Loans held-for-sale (mandatory pricing agreements) |  |
Loans held-for-sale (mandatory pricing agreements) | 23,493 | 23,571
Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Loans held-for-sale (mandatory pricing agreements) |  | 0
Significant Unobservable Inputs (Level 3) | IRLCs |  |
Derivative, fair value | 383 | 551
Significant Unobservable Inputs (Level 3) | Loans held-for-sale (mandatory pricing agreements) |  |
Loans held-for-sale (mandatory pricing agreements) | 0 | 0
U.S. Government-sponsored agencies |  |
Total available-for-sale securities | 112,760 | 133,190
U.S. Government-sponsored agencies | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 0
U.S. Government-sponsored agencies | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities | 112,760 | 133,190
U.S. Government-sponsored agencies | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Municipal securities |  |
Total available-for-sale securities | 91,080 | 96,377
Municipal securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 0
Municipal securities | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities | 91,080 | 96,377
Municipal securities | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Mortgage-backed securities |  |
Total available-for-sale securities | 225,692 | 209,720
Mortgage-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 0
Mortgage-backed securities | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities |  | 209,720
Mortgage-backed securities | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Asset-backed securities |  |
Total available-for-sale securities | 4,960 | 5,009
Asset-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 0
Asset-backed securities | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities |  | 5,009
Asset-backed securities | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Corporate securities |  |
Total available-for-sale securities | 34,505 | 26,047
Corporate securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities | 0 | 0
Corporate securities | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities | 34,505 | 26,047
Corporate securities | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities | 0 | 0
Other securities |  |
Total available-for-sale securities |  | 2,932
Other securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Total available-for-sale securities |  | 2,932
Other securities | Significant Other Observable Inputs (Level 2) |  |
Total available-for-sale securities |  | 0
Other securities | Significant Unobservable Inputs (Level 3) |  |
Total available-for-sale securities |  | 0
Interest rate swaps | Interest rate swaps |  |
Derivative asset, fair value | 8,032 |
Derivative liability, fair value | (72) | (271)
Interest rate swaps | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps |  |
Derivative asset, fair value | 0 |
Derivative liability, fair value | 0 | 0
Interest rate swaps | Significant Other Observable Inputs (Level 2) | Interest rate swaps |  |
Derivative asset, fair value | 8,032 |
Derivative liability, fair value | (72) | (271)
Interest rate swaps | Significant Unobservable Inputs (Level 3) | Interest rate swaps |  |
Derivative asset, fair value | 0 |
Derivative liability, fair value | 0 | 0
Forward contracts | Forward contracts |  |
Derivative, fair value | 127 | (80)
Forward contracts | Quoted Prices in Active Markets for Identical Assets (Level 1) | Forward contracts |  |
Derivative, fair value | 127 | (80)
Forward contracts | Significant Other Observable Inputs (Level 2) | Forward contracts |  |
Derivative, fair value | 0 | 0
Forward contracts | Significant Unobservable Inputs (Level 3) | Forward contracts |  |
Derivative, fair value | $ 0 | $ 0

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