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Loans and Allowance for Credit Losses - Summary of an Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	$ 3,426,043	$ 3,033,392
90 Days or More Past Due and Still Accruing	45,264	46,524
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	(7,211)	(7,300)
Loans receivable	3,418,832	3,026,092
30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	58,427	64,705
90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	49,175	53,669
Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	107,602	118,374
Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	3,318,441	2,915,018
Construction, land and land development loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable
90 Days or More Past Due and Still Accruing
Construction, land and land development loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable
Construction, land and land development loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable
Construction, land and land development loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable
Construction, land and land development loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable
Real Estate Portfolio Segment | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans receivable	212,467	225,391
Real Estate Portfolio Segment | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Loans receivable	1,362,452	1,303,533
Consumer and other loans:
Financing Receivable Recorded Investment Past Due [Line Items]
Loans receivable	14,173	1,628
Community Bank
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,904,304	1,837,154
90 Days or More Past Due and Still Accruing	0	0
Community Bank | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	273	46
Community Bank | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	876	7,145
Community Bank | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,149	7,191
Community Bank | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,903,155	1,829,963
Community Bank | Commercial and industrial loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	152,161	149,502
90 Days or More Past Due and Still Accruing	0	0
Community Bank | Commercial and industrial loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	271	0
Community Bank | Commercial and industrial loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Commercial and industrial loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	271	0
Community Bank | Commercial and industrial loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	151,890	149,502
Community Bank | Construction, land and land development loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	163,051	157,100
90 Days or More Past Due and Still Accruing	0	0
Community Bank | Construction, land and land development loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Construction, land and land development loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Construction, land and land development loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Construction, land and land development loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	163,051	157,100
Community Bank | Real Estate Portfolio Segment | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	212,467	225,391
90 Days or More Past Due and Still Accruing	0	0
Community Bank | Real Estate Portfolio Segment | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,362,452	1,303,533
90 Days or More Past Due and Still Accruing	0	0
Community Bank | Real Estate Portfolio Segment | 30-89 Days Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	44
Community Bank | Real Estate Portfolio Segment | 30-89 Days Past Due | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Real Estate Portfolio Segment | 90 Days or More Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	45	0
Community Bank | Real Estate Portfolio Segment | 90 Days or More Past Due | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	831	7,145
Community Bank | Real Estate Portfolio Segment | Total Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	45	44
Community Bank | Real Estate Portfolio Segment | Total Past Due | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	831	7,145
Community Bank | Real Estate Portfolio Segment | Current | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	212,422	225,347
Community Bank | Real Estate Portfolio Segment | Current | Commercial real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,361,621	1,296,388
Community Bank | Consumer and other loans:
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	14,173	1,628
90 Days or More Past Due and Still Accruing	0	0
Community Bank | Consumer and other loans: | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2	2
Community Bank | Consumer and other loans: | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	0
Community Bank | Consumer and other loans: | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	2	2
Community Bank | Consumer and other loans: | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	14,171	1,626
CCBX
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,521,739	1,196,238
90 Days or More Past Due and Still Accruing	45,264	46,524
CCBX | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	58,154	64,659
CCBX | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	48,299	46,524
CCBX | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	106,453	111,183
CCBX | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	1,415,286	1,085,055
CCBX | Commercial and industrial loans | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	103,924	87,494
90 Days or More Past Due and Still Accruing	0	0
CCBX | Commercial and industrial loans | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	36,494	54,298
90 Days or More Past Due and Still Accruing	1,566	2,086
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	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	2,496	3,433
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	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	1,593	2,086
CCBX | Commercial and industrial loans | Total Past Due | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	0	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	4,089	5,519
CCBX | Commercial and industrial loans | Current | Capital call lines
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	103,924	87,494
CCBX | Commercial and industrial loans | Current | CCBX Other Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	32,405	48,779
CCBX | Real Estate Portfolio Segment | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	265,402	238,035
90 Days or More Past Due and Still Accruing	3,025	1,115
CCBX | Real Estate Portfolio Segment | 30-89 Days Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	3,648	3,198
CCBX | Real Estate Portfolio Segment | 90 Days or More Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	3,025	1,115
CCBX | Real Estate Portfolio Segment | Total Past Due | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	6,673	4,313
CCBX | Real Estate Portfolio Segment | Current | Residential real estate loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	258,729	233,722
CCBX | Consumer and other loans:
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	482,228	310,574
CCBX | Consumer and other loans: | Credit cards
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	633,691	505,837
90 Days or More Past Due and Still Accruing	34,562	34,835
CCBX | Consumer and other loans: | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	482,228	310,574
90 Days or More Past Due and Still Accruing	6,111	8,488
CCBX | Consumer and other loans: | 30-89 Days Past Due | Credit cards
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	30,476	28,383
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	21,534	29,645
CCBX | Consumer and other loans: | 90 Days or More Past Due | Credit cards
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	37,269	34,835
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	6,412	8,488
CCBX | Consumer and other loans: | Total Past Due | Credit cards
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	67,745	63,218
CCBX | Consumer and other loans: | Total Past Due | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	27,946	38,133
CCBX | Consumer and other loans: | Current | Credit cards
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	565,946	442,619
CCBX | Consumer and other loans: | Current | Other Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans receivable	$ 454,282	$ 272,441

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