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Derivative Financial Instruments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Interest Rate Lock Commitments |  |  |  |  |
Derivative Financial Instruments |  |  |  |  |
Aggregate notional amount | $ 73,500 |  | $ 73,500 |  | $ 27,200
Forward Sales Commitments |  |  |  |  |
Derivative Financial Instruments |  |  |  |  |
Aggregate notional amount | 107,500 |  | 107,500 |  | 48,600
Interest rate lock commitments and forward sales commitments |  |  |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Net gains (losses) | (20) | $ (31) | (60) | $ (353) |
Interest rate lock commitments and forward sales commitments | Non-interest income |  |  |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Gross gains | 1,929 | 1,023 | 3,007 | 1,755 |
Interest rate lock commitments and forward sales commitments | Non-interest expense |  |  |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Gross (losses) | (1,949) | (1,054) | (3,067) | (2,108) |
Interest rate lock commitments and forward sales commitments | Other assets |  |  |  |  |
Fair values of derivative assets and liabilities recorded in consolidated balance sheets |  |  |  |  |
Fair value recorded in other assets | 1,135 |  | 1,135 |  | 624
Interest rate lock commitments and forward sales commitments | Other liabilities |  |  |  |  |
Fair values of derivative assets and liabilities recorded in consolidated balance sheets |  |  |  |  |
Fair value recorded in other liabilities | 1,949 |  | 1,949 |  | 1,205
Interest rate swap |  |  |  |  |
Derivative Financial Instruments |  |  |  |  |
Aggregate notional amount | 407,400 |  | 407,400 |  | 243,700
Variable rate, commercial loans that are supported by the interest rate swap contracts | 203,700 |  | 203,700 |  | 121,800
Derivative cash pledged |  |  |  |  | 1,000
Derivative securities pledged | 12,300 |  | 12,300 |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Net gains (losses) | 0 | 0 | 0 | 0 |
Interest rate swap | Non-interest income |  |  |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Gross gains | 73 | 489 | 164 | 1,443 |
Interest rate swap | Non-interest expense |  |  |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |  |  |
Gross (losses) | (73) | $ (489) | (164) | $ (1,443) |
Interest rate swap | Other assets |  |  |  |  |
Fair values of derivative assets and liabilities recorded in consolidated balance sheets |  |  |  |  |
Fair value recorded in other assets | 11,948 |  | 11,948 |  | 1,438
Interest rate swap | Other liabilities |  |  |  |  |
Fair values of derivative assets and liabilities recorded in consolidated balance sheets |  |  |  |  |
Fair value recorded in other liabilities | $ 11,948 |  | $ 11,948 |  | $ 1,438

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