Derivatives - Schedule of Derivative Gain (Loss) (Details) - Not Designated as Hedging Instrument - Mortgage banking income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	$ (132)	$ 257	$ (1,111)	$ 313
Retail interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	(1,579)	(524)	(4,702)	(692)
Interest rate lock commitments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	$ 1,447	$ 781	$ 3,591	$ 1,005