Derivative Instruments (Details) - Not designated as hedging - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivative Instruments
Fair Value, Derivative Assets	$ 3,602	$ 1,621
Fair Value, Derivative Liabilities	2,884	109
Notional Amount, Derivative Assets	182,425	58,499
Notional Amount, Derivative Liabilities	193,500	68,500
Interest rate lock commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	2,543	1,228
Notional Amount, Derivative Assets	147,414	45,715
Forward loan sales commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	1,059	393
Notional Amount, Derivative Assets	35,011	12,784
TBA mortgage backed securities | Accrued expenses and other liabilities
Derivative Instruments
Fair Value, Derivative Liabilities	2,884	109
Notional Amount, Derivative Liabilities	$ 193,500	$ 68,500