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Loans and Allowance for Credit Losses - Breakdown of Consumer Loan Portfolio by Segment and Type of Loan (Details) | 6 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 USD ($) loan | Sep. 30, 2025 USD ($) | Dec. 31, 2025 USD ($) loan
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 4,215,122,000 |  | $ 3,756,829,000
CCBX |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | 2,226,296,000 |  | 1,808,094,000
Community Bank |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | 1,988,826,000 |  | 1,948,735,000
Consumer and other loans: |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 1,682,710,000 |  | $ 1,328,461,000
% of Total Outstanding Balance Consumer Loans | 100.00% |  | 100.00%
Average Loan Balance | $ 500 | $ 809 |
Number of Loans | loan | 3,580,680 |  | 1,642,431
Consumer and other loans: | CCBX |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 918,779,000 |  | $ 691,708,000
Consumer and other loans: | CCBX | Installment Loans - Cash Secured |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 216,766,000 |  | $ 162,072,000
% of Total Outstanding Balance Consumer Loans | 12.90% |  | 12.20%
Consumer and other loans: | CCBX | Installment Loans - Unsecured |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 521,555,000 |  | $ 502,767,000
% of Total Outstanding Balance Consumer Loans | 31.00% |  | 37.80%
Consumer and other loans: | CCBX | Installment Loans - Total |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 738,321,000 |  | $ 664,839,000
% of Total Outstanding Balance Consumer Loans | 43.90% |  | 50.00%
Average Loan Balance | $ 400 | 800 |
Number of Loans | loan | 1,851,498 |  | 864,638
Consumer and other loans: | CCBX | Credit Cards - Cash Secured |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 54,000 |  | $ 56,000
% 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 | $ 753,117,000 |  | $ 622,625,000
% of Total Outstanding Balance Consumer Loans | 44.80% |  | 46.90%
Consumer and other loans: | CCBX | Credit Cards - Total |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 753,171,000 |  | $ 622,681,000
% of Total Outstanding Balance Consumer Loans | 44.80% |  | 46.90%
Average Loan Balance | $ 1,500 | 1,400 |
Number of Loans | loan | 500,348 |  | 435,236
Consumer and other loans: | CCBX | Lines Of Credit |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 144,947,000 |  | $ 10,027,000
% of Total Outstanding Balance Consumer Loans | 8.60% |  | 0.80%
Average Loan Balance | $ 200 | 100 |
Number of Loans | loan | 943,772 |  | 89,736
Consumer and other loans: | CCBX | Consumer, Other |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 35,511,000 |  | $ 16,842,000
% of Total Outstanding Balance Consumer Loans | 2.10% |  | 1.30%
Average Loan Balance | $ 100 | 100 |
Number of Loans | loan | 284,612 |  | 252,381
Consumer and other loans: | Community Bank |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 10,760,000 |  | $ 14,072,000
Consumer and other loans: | Community Bank | Installment Loans - Total |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 681,000 |  | $ 3,010,000
% of Total Outstanding Balance Consumer Loans | 0.00% |  | 0.20%
Average Loan Balance | $ 28,400 | 111,500 |
Number of Loans | loan | 24 |  | 27
Consumer and other loans: | Community Bank | Lines Of Credit |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 210,000 |  | $ 140,000
% of Total Outstanding Balance Consumer Loans | 0.00% |  | 0.00%
Average Loan Balance | $ 6,800 | 4,500 |
Number of Loans | loan | 31 |  | 31
Consumer and other loans: | Community Bank | Consumer, Other |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Gross loans receivable | $ 9,869,000 |  | $ 10,922,000
% of Total Outstanding Balance Consumer Loans | 0.60% |  | 0.80%
Average Loan Balance | $ 25,000.0 | $ 28,600 |
Number of Loans | loan | 395 |  | 382

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