Loans and Allowance for Credit Losses - Summary of an Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	$ 2,974,420	$ 2,633,363
90 Days or More Past Due and Still Accruing	36,217	26,095
Net deferred origination fees and premiums	(7,385)	(6,107)
Loans receivable	2,967,035	2,627,256
30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	59,704	39,436
90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	43,362	33,144
Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	103,066	72,580
Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2,871,354	2,560,783
Commercial and industrial loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		312,628
90 Days or More Past Due and Still Accruing		404
Commercial and industrial loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		393
Commercial and industrial loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		486
Commercial and industrial loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		879
Commercial and industrial loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		311,749
Construction, land, and land development
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		214,055
90 Days or More Past Due and Still Accruing		0
Construction, land, and land development | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		0
Construction, land, and land development | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		66
Construction, land, and land development | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		66
Construction, land, and land development | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		213,989
Real Estate Portfolio Segment | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		449,157
90 Days or More Past Due and Still Accruing		876
Loans receivable	225,372
Real Estate Portfolio Segment | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		1,048,752
90 Days or More Past Due and Still Accruing		0
Loans receivable	1,237,849
Real Estate Portfolio Segment | 30-89 Days Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		1,016
Real Estate Portfolio Segment | 30-89 Days Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		95
Real Estate Portfolio Segment | 90 Days or More Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		876
Real Estate Portfolio Segment | 90 Days or More Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		6,901
Real Estate Portfolio Segment | Total Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		1,892
Real Estate Portfolio Segment | Total Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		6,996
Real Estate Portfolio Segment | Current | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		447,265
Real Estate Portfolio Segment | Current | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		1,041,756
Consumer and other loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		608,771
90 Days or More Past Due and Still Accruing		24,815
Loans receivable	2,483
Consumer and other loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		37,932
Consumer and other loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		24,815
Consumer and other loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		62,747
Consumer and other loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable		$ 546,024
Community Bank
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,791,622
90 Days or More Past Due and Still Accruing	0
Community Bank | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	66
Community Bank | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	7,145
Community Bank | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	7,211
Community Bank | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,784,411
Community Bank | Commercial and industrial loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	158,232
90 Days or More Past Due and Still Accruing	0
Community Bank | Commercial and industrial loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	18
Community Bank | Commercial and industrial loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Commercial and industrial loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	18
Community Bank | Commercial and industrial loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	158,214
Community Bank | Construction, land, and land development
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	167,686
90 Days or More Past Due and Still Accruing	0
Community Bank | Construction, land, and land development | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Construction, land, and land development | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Construction, land, and land development | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Construction, land, and land development | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	167,686
Community Bank | Real Estate Portfolio Segment | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	225,372
90 Days or More Past Due and Still Accruing	0
Community Bank | Real Estate Portfolio Segment | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,237,849
90 Days or More Past Due and Still Accruing	0
Community Bank | Real Estate Portfolio Segment | 30-89 Days Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Real Estate Portfolio Segment | 30-89 Days Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Real Estate Portfolio Segment | 90 Days or More Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Real Estate Portfolio Segment | 90 Days or More Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	7,145
Community Bank | Real Estate Portfolio Segment | Total Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Real Estate Portfolio Segment | Total Past Due | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	7,145
Community Bank | Real Estate Portfolio Segment | Current | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	225,372
Community Bank | Real Estate Portfolio Segment | Current | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,230,704
Community Bank | Consumer and other loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2,483
90 Days or More Past Due and Still Accruing	0
Community Bank | Consumer and other loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	48
Community Bank | Consumer and other loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
Community Bank | Consumer and other loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	48
Community Bank | Consumer and other loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2,435
CCBX
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,182,798
90 Days or More Past Due and Still Accruing	36,217
CCBX | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	59,638
CCBX | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	36,217
CCBX | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	95,855
CCBX | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,086,943
CCBX | Commercial and industrial loans | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	114,174
90 Days or More Past Due and Still Accruing	0
CCBX | Commercial and industrial loans | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	58,869
90 Days or More Past Due and Still Accruing	1,387
CCBX | Commercial and industrial loans | 30-89 Days Past Due | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
CCBX | Commercial and industrial loans | 30-89 Days Past Due | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	3,299
CCBX | Commercial and industrial loans | 90 Days or More Past Due | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
CCBX | Commercial and industrial loans | 90 Days or More Past Due | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,387
CCBX | Commercial and industrial loans | Total Past Due | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0
CCBX | Commercial and industrial loans | Total Past Due | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	4,686
CCBX | Commercial and industrial loans | Current | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	114,174
CCBX | Commercial and industrial loans | Current | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	54,183
CCBX | Real Estate Portfolio Segment | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	251,775
90 Days or More Past Due and Still Accruing	1,462
CCBX | Real Estate Portfolio Segment | 30-89 Days Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2,655
CCBX | Real Estate Portfolio Segment | 90 Days or More Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,462
CCBX | Real Estate Portfolio Segment | Total Past Due | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	4,117
CCBX | Real Estate Portfolio Segment | Current | Residential real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	247,658
CCBX | Consumer and other loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	316,987
CCBX | Consumer and other loans | Credit Card
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	440,993
90 Days or More Past Due and Still Accruing	24,807
CCBX | Consumer and other loans | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	316,987
90 Days or More Past Due and Still Accruing	8,561
CCBX | Consumer and other loans | 30-89 Days Past Due | Credit Card
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	23,543
CCBX | Consumer and other loans | 30-89 Days Past Due | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	30,141
CCBX | Consumer and other loans | 90 Days or More Past Due | Credit Card
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	24,807
CCBX | Consumer and other loans | 90 Days or More Past Due | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	8,561
CCBX | Consumer and other loans | Total Past Due | Credit Card
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	48,350
CCBX | Consumer and other loans | Total Past Due | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	38,702
CCBX | Consumer and other loans | Current | Credit Card
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	392,643
CCBX | Consumer and other loans | Current | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	$ 278,285