Derivative Instruments (Details) - Not designated as hedging - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative Instruments
Fair Value, Derivative Assets	$ 12,928	$ 13,357
Fair Value, Derivative Liabilities	1,616	2,911
Notional Amount, Derivative Assets	649,443	401,690
Notional Amount, Derivative Liabilities	45,845	351,597
Interest rate swaps | Other assets
Derivative Instruments
Fair Value, Derivative Assets	1,616	569
Notional Amount, Derivative Assets	45,845	44,597
Interest rate swaps | Accrued expenses and other liabilities
Derivative Instruments
Fair Value, Derivative Liabilities	1,616	572
Notional Amount, Derivative Liabilities	45,845	44,597
Interest rate lock commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	4,033	10,124
Notional Amount, Derivative Assets	260,318	270,103
Forward loan sales commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	1,028	2,664
Notional Amount, Derivative Assets	34,280	86,990
TBA mortgage backed securities | Other assets
Derivative Instruments
Fair Value, Derivative Assets	6,251
Notional Amount, Derivative Assets	$ 309,000
TBA mortgage backed securities | Accrued expenses and other liabilities
Derivative Instruments
Fair Value, Derivative Liabilities		2,339
Notional Amount, Derivative Liabilities		$ 307,000