Loans, Allowance for Credit Losses, and Asset Quality Information - Summary of Nonperforming Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans	$ 33,460	$ 34,696
Total loans	6,064,698	6,081,715
Foreclosed properties	2,750	3,071
Nonperforming Financial Instruments
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual loans	33,460	34,696
TDRs - accruing	12,727	13,866
Accruing loans > 90 days past due	0	1,004
Total loans	46,187	49,566
Foreclosed properties	2,750	3,071
Total nonperforming assets	$ 48,937	$ 52,637