Fair Value - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Outstanding balances in collateral dependent related to allowance for credit losses	$ 32,900		$ 32,900		$ 43,400
Collateral dependent related to allowance for credit losses	4,200		4,200		4,400
Foreclosed assets remeasured after initial recognition			5,300	$ 3,200
Write-downs of allowance for foreclosed assets after initial recognition			268	873
Noninterest gain (loss) Mortgage banking, net for changes in fair value of LHFS	2,300	$ (445)	(8,300)	7,300
Interest earned on LHFS included in Interest and fees on LHFS and LHFI	1,700	$ 1,500	3,800	$ 2,800
Serviced GNMA loans eligible for repurchase	$ 95,400		$ 95,400		$ 141,200