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Loans and Allowance for Credit Losses - Schedule of Activity in Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	$ 44,823	$ 29,566	$ 30,039	$ 32,653
(Charge-offs)/ Recoveries	0	7	9	22
(Payments)/ Disbursements	(11,835)	(1,778)	(14,022)	(3,709)
(Removals)/ Additions	7,024	0	23,986	(1,171)
Ending Balance	40,012	27,795	40,012	27,795
Commercial
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	7,044	8,471	7,456	11,090
(Charge-offs)/ Recoveries	0	0	0	0
(Payments)/ Disbursements	(2,846)	(207)	(4,743)	(1,655)
(Removals)/ Additions	3,018	0	4,503	(1,171)
Ending Balance	7,216	8,264	7,216	8,264
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	32,428	17,385	17,158	17,606
(Charge-offs)/ Recoveries	0	5	4	15
(Payments)/ Disbursements	(8,903)	(1,420)	(9,114)	(1,651)
(Removals)/ Additions	4,006	0	19,483	0
Ending Balance	27,531	15,970	27,531	15,970
BBCC
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	87	105	87	112
(Charge-offs)/ Recoveries	0	3	3	5
(Payments)/ Disbursements	0	(11)	(3)	(20)
(Removals)/ Additions	0	0	0	0
Ending Balance	87	97	87	97
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	2,405	2,603	2,435	2,824
(Charge-offs)/ Recoveries	0	(4)	0	(4)
(Payments)/ Disbursements	(27)	(17)	(57)	(238)
(Removals)/ Additions	0	0	0	0
Ending Balance	2,378	2,582	2,378	2,582
Indirect
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	0	0	0	0
(Charge-offs)/ Recoveries	0	1	1	3
(Payments)/ Disbursements	0	(1)	(1)	(3)
(Removals)/ Additions	0	0	0	0
Ending Balance	0	0	0	0
Direct
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	2,679	726	2,704	739
(Charge-offs)/ Recoveries	0	1	0	2
(Payments)/ Disbursements	(10)	(62)	(35)	(76)
(Removals)/ Additions	0	0	0	0
Ending Balance	2,669	665	2,669	665
Home equity
Financing Receivable, Troubled Debt Restructuring [Roll Forward]
Beginning Balance	180	276	199	282
(Charge-offs)/ Recoveries	0	1	1	1
(Payments)/ Disbursements	(49)	(60)	(69)	(66)
(Removals)/ Additions	0	0	0	0
Ending Balance	$ 131	$ 217	$ 131	$ 217

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Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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