Loans and Allowance for Credit Losses - Schedule of Activity in Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	$ 30,039	$ 32,653
(Charge-offs)/ Recoveries	9	15
(Payments)/ Disbursements	(2,187)	(1,931)
(Removals)/ Additions	16,962	(1,171)
Ending Balance	44,823	29,566
Commercial
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	7,456	11,090
(Charge-offs)/ Recoveries	0	0
(Payments)/ Disbursements	(1,897)	(1,448)
(Removals)/ Additions	1,485	(1,171)
Ending Balance	7,044	8,471
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	17,158	17,606
(Charge-offs)/ Recoveries	4	8
(Payments)/ Disbursements	(211)	(229)
(Removals)/ Additions	15,477	0
Ending Balance	32,428	17,385
BBCC
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	87	112
(Charge-offs)/ Recoveries	3	3
(Payments)/ Disbursements	(3)	(10)
(Removals)/ Additions	0	0
Ending Balance	87	105
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	2,435	2,824
(Charge-offs)/ Recoveries	0	0
(Payments)/ Disbursements	(30)	(221)
(Removals)/ Additions	0	0
Ending Balance	2,405	2,603
Indirect
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	0	0
(Charge-offs)/ Recoveries	1	2
(Payments)/ Disbursements	(1)	(2)
(Removals)/ Additions	0	0
Ending Balance	0	0
Direct
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	2,704	739
(Charge-offs)/ Recoveries	0	1
(Payments)/ Disbursements	(25)	(14)
(Removals)/ Additions	0	0
Ending Balance	2,679	726
Home equity
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	199	282
(Charge-offs)/ Recoveries	1	1
(Payments)/ Disbursements	(20)	(7)
(Removals)/ Additions	0	0
Ending Balance	$ 180	$ 276