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Derivative Financial Instruments - Forward Sales Commitments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Forward sales commitments |  |  |
Derivative Financial Instruments |  |  |
Notional amount | $ 353,600 |  | $ 135,300
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) | (674) | $ (40) |
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 | 5,146 |  | 1,046
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 | 7,344 |  | $ 2,187
Non-interest income | Interest rate lock commitments and forward sales commitments |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |
Gross gains | 6,670 | 1,078 |
Non-interest expense | Interest rate lock commitments and forward sales commitments |  |  |
Gross gains and losses on derivative assets and liabilities recorded in Consolidated Statements of Income |  |  |
Gross (losses) | $ (7,344) | $ (1,118) |

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