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Derivative Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Derivative Instruments |  |
Fair Value, Derivative Assets | $ 13,773 | $ 1,621
Not designated as hedging |  |
Derivative Instruments |  |
Fair Value, Derivative Assets | 13,357 | 1,621
Fair Value, Derivative Liabilities | 2,911 | 109
Notional Amount, Derivative Assets | 446,286 | 58,499
Notional Amount, Derivative Liabilities | 396,193 | 68,500
Not designated as hedging | Interest rate lock commitments | Other assets |  |
Derivative Instruments |  |
Fair Value, Derivative Assets | 10,693 | 1,228
Notional Amount, Derivative Assets | 359,296 | 45,715
Not designated as hedging | Forward loan sales commitments | Other assets |  |
Derivative Instruments |  |
Fair Value, Derivative Assets | 2,664 | 393
Notional Amount, Derivative Assets | 86,990 | 12,784
Not designated as hedging | TBA mortgage backed securities | Accrued expenses and other liabilities |  |
Derivative Instruments |  |
Fair Value, Derivative Liabilities | 2,911 | 109
Notional Amount, Derivative Liabilities | $ 396,193 | $ 68,500

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