Loans and Allowance for Credit Losses - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	$ 3,866,474	$ 3,756,829
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	(7,095)	(7,298)
Loans receivable	3,859,379	3,749,531
Construction, land and land development loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable
Real Estate Portfolio Segment \| Residential real estate loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Loans receivable	199,185	202,293
Real Estate Portfolio Segment \| Commercial real estate loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Loans receivable	1,300,547	1,285,856
Consumer and other loans:
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	1,432,015	1,328,461
Loans receivable	11,587	14,072
Community Bank
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	1,981,833	1,948,735
Community Bank \| Commercial and industrial loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	235,603	224,439
Community Bank \| Construction, land and land development loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	234,911	222,075
Community Bank \| Real Estate Portfolio Segment \| Residential real estate loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	199,185	202,293
Community Bank \| Real Estate Portfolio Segment \| Commercial real estate loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	1,300,547	1,285,856
Community Bank \| Consumer and other loans:
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	11,587	14,072
CCBX
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	1,884,641	1,808,094
CCBX \| Commercial and industrial loans \| Capital call lines
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	176,384	210,480
CCBX \| Commercial and industrial loans \| All other commercial & industrial loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	21,792	19,166
CCBX \| Real Estate Portfolio Segment \| Residential real estate loans
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	266,037	264,059
CCBX \| Consumer and other loans:
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	726,943	691,708
CCBX \| Consumer and other loans: \| Credit cards
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gross loans receivable	$ 693,485	$ 622,681

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481598/310-20-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 20
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481569/310-20-50-3

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