Mortgage Banking - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) CPR	Dec. 31, 2021 USD ($) CPR	Dec. 31, 2020 USD ($)
Schedule of changes in the reserve for mortgage loan [Abstract]
Assumed average prepayment speed | CPR	8	12
Average discount rate (in hundredths)	10.08%	9.56%
Annual servicing fee	$ 26,000	$ 25,100	$ 23,300
Servicing fee income percentage of outstanding balance of underlying loans (in hundredths)	0.32%
Mortgage servicing rights [Abstract]
Residential mortgage loans sold	$ 1,243,000	2,286,000	2,532,000
Gains on sales of residential mortgage loans	$ 20,200	56,000	$ 110,900
Period of putback response	60 days
Reserve for mortgage loan servicing putback expenses	$ 500	$ 500