Loans and Allowance for Credit Losses - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	$ 227,925	$ 106,691
Nonaccrual With No Related Allowance	45,444	34,713
Past Due 90 Days or More and Accruing	1,646	7
Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	45,316	25,740
Nonaccrual With No Related Allowance	13,579	9,574
Past Due 90 Days or More and Accruing	396	0
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	132,602	52,450
Nonaccrual With No Related Allowance	31,865	25,139
Past Due 90 Days or More and Accruing	985	0
BBCC
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	2,215	3,362
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	0	0
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	31,436	18,360
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	165	0
Indirect
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	2,387	2,581
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	0	4
Direct
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	1,203	950
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	100	3
Home equity
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	12,766	3,248
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	$ 0	$ 0