Loans and Allowance for Credit Losses - Breakdown of Consumer Loan Portfolio by Segment and Type of Loan (Details)	6 Months Ended	12 Months Ended
Jun. 30, 2025 USD ($) loan	Dec. 31, 2024 USD ($) loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 3,546,881,000	$ 3,493,019,000
CCBX
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	1,680,849,000	1,604,019,000
Community Bank
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	1,866,032,000	1,889,000,000
Consumer and other loans:
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 1,232,476,000	$ 1,206,876,000
% of Total Outstanding Balance Consumer Loans	100.00%	100.00%
Average Loan Balance	$ 895	$ 1,044
Number of Loans \| loan	1,376,446	1,156,379
Consumer and other loans: \| CCBX
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 686,321,000	$ 664,780,000
Consumer and other loans: \| CCBX \| Installment Loans - Cash Secured
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 128,861,000	$ 127,014,000
% of Total Outstanding Balance Consumer Loans	10.50%	10.50%
Consumer and other loans: \| CCBX \| Installment Loans - Unsecured
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 542,228,000	$ 529,783,000
% of Total Outstanding Balance Consumer Loans	43.90%	43.90%
Consumer and other loans: \| CCBX \| Installment Loans - Total
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 671,089,000	$ 656,797,000
% of Total Outstanding Balance Consumer Loans	54.40%	54.40%
Average Loan Balance	$ 800	$ 1,000.0
Number of Loans \| loan	796,927	690,596
Consumer and other loans: \| CCBX \| Credit Cards - Cash Secured
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 364,000	$ 211,000
% of Total Outstanding Balance Consumer Loans	0.00%	0.00%
Consumer and other loans: \| CCBX \| Credit Cards - Unsecured
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 533,561,000	$ 528,343,000
% of Total Outstanding Balance Consumer Loans	43.30%	43.80%
Consumer and other loans: \| CCBX \| Credit Cards - Total
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 533,925,000	$ 528,554,000
% of Total Outstanding Balance Consumer Loans	43.30%	43.80%
Average Loan Balance	$ 1,600	$ 1,800
Number of Loans \| loan	337,749	301,799
Consumer and other loans: \| CCBX \| Lines Of Credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 676,000	$ 722,000
% of Total Outstanding Balance Consumer Loans	0.10%	0.10%
Average Loan Balance	$ 900	$ 1,400
Number of Loans \| loan	715	524
Consumer and other loans: \| CCBX \| Consumer, Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 14,556,000	$ 7,261,000
% of Total Outstanding Balance Consumer Loans	1.20%	0.60%
Average Loan Balance	$ 100	$ 0
Number of Loans \| loan	240,653	163,026
Consumer and other loans: \| Community Bank
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 12,230,000	$ 13,542,000
Consumer and other loans: \| Community Bank \| Installment Loans - Total
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 738,000	$ 1,917,000
% of Total Outstanding Balance Consumer Loans	0.10%	0.20%
Average Loan Balance	$ 30,800	$ 68,500
Number of Loans \| loan	24	28
Consumer and other loans: \| Community Bank \| Lines Of Credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 178,000	$ 181,000
% of Total Outstanding Balance Consumer Loans	0.00%	0.00%
Average Loan Balance	$ 5,700	$ 5,700
Number of Loans \| loan	31	32
Consumer and other loans: \| Community Bank \| Consumer, Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Gross loans receivable	$ 11,314,000	$ 11,444,000
% of Total Outstanding Balance Consumer Loans	0.90%	0.90%
Average Loan Balance	$ 32,600	$ 30,600
Number of Loans \| loan	347	374

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- Definition

Percentage, before allowance for credit loss, of financing receivable to total financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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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
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- Definition

Average amount outstanding, before allowance for credit loss, of financing receivables.

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