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Cover [Abstract] Allowance for loan losses Balance, beginning of period Balance, end of period Financing Receivable, Allowance for Credit Loss Receivables due from card issuing banks Receivables Due From Card Issuing Banks [Member] Receivables from card issuing banks primarily represent revenue-related funds collected by the card issuing banks from our retail distributors, merchant banks and cardholders that have yet to be remitted to us. These receivables are generally collected within a short period of time based on remittance terms in our agreements with the card issuing banks. Federal funds rate Base Rate, Condition One [Member] Base Rate, Condition One [Member] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Unrealized loss, less than 12 months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Income tax payable Accrued Income Taxes, Current Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Time deposits, denominations greater than or equal to $100 Time Deposits, $100,000 or More Tax year 2023-2027 Tax Year 2023-2027 [Member] Tax Year 2023-2027 [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Unrealized loss, 12 months or more Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Accounting Standards Update 2016-13 [Member]