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Equity Method Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Amortization of premium and discount on available-for-sale investment securities Amortization of Debt Discount (Premium) 12 months or more Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Other expense Other Cost and Expense, Operating Equity Components [Axis] Equity Components [Axis] Accounts receivable, net Increase (Decrease) in Accounts Receivable Deferred expenses Deferred Costs, Noncurrent Product and Service [Domain] Product and Service [Domain] Class of Stock [Line Items] Class of Stock [Line Items] Cash paid for income taxes Income Tax Paid, after Refund Received Deferred tax assets, valuation allowance Deferred Tax Assets, Valuation Allowance Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Common Class A Common Class A [Member] Entity Interactive Data Current Entity Interactive Data Current 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Position, Fair Value [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Decrease in excess tax benefit, shared-based compensation and additional expenses Increase (Decrease) In Excess Tax Benefit, Share-based-based Compensation And Additional Expenses Increase (Decrease) In Excess Tax Benefit, Share-based-based Compensation And Additional Expenses Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining authorized amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Merger Agreement Merger Agreement [Member] Merger Agreement Less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Increases related to positions taken during the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Other receivables Insurance Settlements Receivable Commitments and contingencies (Note 17) Commitments and Contingencies Total operating revenues Total segment revenues Revenues Revenues Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Losses in equity method investments Income (loss) in equity method investments Equity in losses attributable to TailFin Income (Loss) from Equity Method Investments Accounts payable and other accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Equity method investment, percentage of interest of any net losses Equity Method Investment, Percentage Of Interest Of Any Net Losses Equity Method Investment, Percentage Of Interest Of Any Net Losses Receivable Type [Axis] Receivable Type [Axis] Counterparty Name [Axis] Counterparty Name [Axis] Transferred point in time Transferred at Point in Time [Member] Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Remainder of 2026 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Agency mortgage-backed securities US Government Agencies Debt Securities [Member] Obligations to customers Client Funds Held The balance at the reporting period in the carrying amount of client funds held and maintained in custodial and separate accounts, and which are owned by clients or contract holders. Remaining lease term Lessee, Operating Lease, Term of Contract PEO Name PEO Name Financial Liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Other segment items Segment Reporting, Other Segment Item, Amount Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 30-59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Schedule of Past Due Financing Receivables Financing Receivable, Past Due [Table Text Block] Interest expense Interest Expense, Debt Total Current or Less Than 30 Days Past Due Financial Asset, Not Past Due [Member] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Unrestricted cash, cash equivalents and restricted cash, beginning of period Unrestricted cash, cash equivalents and restricted cash, end of period Total unrestricted cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Consumer Services Consumer Services Consumer Services [Member] Consumer Services Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Money Movement Services Money Movement Services Money Movement Services [Member] Money Movement Services [Member] Basic (loss) earnings per common share (in USD per share) Basic (loss) earnings per Class A common share (in USD per share) Earnings Per Share, Basic, Undistributed Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Restricted cash Restricted cash Restricted Cash and Cash Equivalent, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Allowance for Loan Losses [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Ownership percentage Equity Method Investment, Ownership Percentage Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Compensation and benefits expenses Compensation and professional services Compensation and benefits expenses Labor and Related Expense Tax Period [Axis] Tax Period [Axis] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Schedule of Debt Schedule of Debt [Table Text Block] Investment, Name [Domain] Investment, Name [Domain] Leases Lessee, Operating Leases [Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Card revenues and other fees Card Revenues And Other Fees [Member] Card Revenues And Other Fees [Member] Deferred revenue Contract with Customer, Liability, Current Deferred tax credit, valuation allowance Tax Credit Carryforward, Valuation Allowance Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Award Type [Axis] Award Type [Axis] Deferred financing costs Payments of Financing Costs Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Amortized cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Consumer Consumer Portfolio Segment [Member] Restructuring and Related Activities [Abstract] Product and Service [Axis] Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Class A Common Stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Recoveries of loans previously charged off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Legal settlement expenses Litigation Settlement, Fee Expense Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four Interest-bearing deposit accounts Interest-Bearing Deposit Liabilities, by Component [Abstract] Concentration risk (as percentage) Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Total outstanding (as a percent) Financing Receivable, Recorded Investment, Percent Financing Receivable, Recorded Investment, Percent Total Past Due Financial Asset, Past Due [Member] Final settlement of the securities sold Debt Securities, Available-for-Sale, Realized Gain (Loss) Total liabilities and stockholders’ equity Liabilities and Equity Goodwill and intangible assets Intangible Asset, Including Goodwill, after Accumulated Amortization Employee Stock Option Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Tax Year 2028 - 2045 Tax Year 2028 - 2045 [Member] Tax Year 2028 - 2045 Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Non-Classified Pass [Member] Plan Name [Axis] Plan Name [Axis] Restructuring and other charges Restructuring Charges Variable Rate Senior Notes Due 2026 Variable Rate Senior Notes Due 2026 [Member] Variable Rate Senior Notes Due 2026 Schedule of Accounts Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Other (expense) income, net Other (expense) income, net Other Nonoperating Income (Expense) Other income Other Operating Income (Expense), Net Income tax receivable Income Taxes Receivable, Current Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Fixed Rate Senior Notes due 2029 Fixed Rate Senior Notes Due 2029 [Member] Fixed Rate Senior Notes Due 2029 Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Increase in IRC 162(m) limitation Increase (Decrease) In IRC 162(m) Limitation Increase (Decrease) In IRC 162(m) Limitation Adjustment to Compensation: Adjustment to Compensation [Axis] Canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations Reclassification of losses realized in net income, net of tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Class of Stock [Domain] Class of Stock [Domain] Percentage of outstanding (as a percent) Financing Receivable, Percent Past Due Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Checking accounts Deposits, Negotiable Order of Withdrawal (NOW) 60-89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Trade receivables Trade Accounts Receivable [Member] Credit Facility [Axis] Credit Facility [Axis] Restructuring and Other Charges Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets Assets, Fair Value Disclosure Bank-owned life insurance income Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance Income, Percent Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance Income, Percent Income Tax Authority [Axis] Income Tax Jurisdiction [Axis] Total current or less than 30 days past due (as a percent) Financing Receivable, Recorded Investment, Percent Current Financing Receivable, Recorded Investment, Percent Current Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Other Other Noncash Income (Expense) Line of Credit Facility [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Corporate and Other Corporate Segment and Other Operating Segment [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] (Loss) income before income taxes (Loss) income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Domestic Settlement obligations Settlement Liabilities, Current Entity Filer Category Entity Filer Category Total fair value Debt Securities, Available-for-Sale, Unrealized Loss Position Interest income, net Revenue Not from Contract with Customer Name Trading Arrangement, Individual Name Unrestricted cash and cash equivalents Unrestricted cash and cash equivalents Cash and Cash Equivalent Operating lease expense Operating Lease, Expense Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Tax Period [Domain] Tax Period [Domain] Reconciliation to (loss) income before income taxes Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Abstract] Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number Deposits [Abstract] Deposits [Abstract] Equity Method Investments and Joint Ventures [Abstract] Investment securities: Investments, Debt and Equity Securities [Abstract] Depreciation and amortization of property, equipment and internal-use software Depreciation and amortization of property, equipment and internal-use software Depreciation, Depletion and Amortization Overdrawn accountholder balances from purchase transactions Reserve for Uncollectible Overdrawn Accounts From Purchase Transactions Overdrawn Cardholder Balances From Purchase Transactions [Member] Overdrawn Cardholder Balances From Purchase Transactions Common stock issued under stock plans, net of withholdings and related tax effects (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Single BaaS Partner Single BaaS Partner [Member] Single BaaS Partner Cash paid per share (in USD per share) Business Combination, Price Per Share Nondeductible transaction related costs Effective Income Tax Rate Reconciliation, Nondeductible Transaction Related Costs, Percent Effective Income Tax Rate Reconciliation, Nondeductible Transaction Related Costs, Percent The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Current assets: Assets, Current [Abstract] Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Vested (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Income tax (benefit) expense Income Tax Expense (Benefit) Capital contributions, authorized amount Limited Partners' Annual Contributed Capital, Authorized Amount Limited Partners' Annual Contributed Capital, Authorized Amount Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Uncollectible Overdrawn Accounts [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Award Timing Method Award Timing Method [Text Block] Net (decrease) increase in unrestricted cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Loans charged off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Notes payable Notes Payable, Noncurrent Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] 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. Net (loss) income Net (loss) income Net (loss) income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Segment Reconciling Items Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Restatement Determination Date: Restatement Determination Date [Axis] Investment Held By Bank Investment Held By Bank [Member] Investment Held By Bank Schedule of Nonperforming Loans Financing Receivable, Nonaccrual [Table Text Block] Borrowings on notes payable Proceeds from Notes Payable Amount awarded to other party Litigation Settlement, Amount Awarded to Other Party Noninterest-bearing Deposit Liabilities, by Component [Abstract] Noninterest-Bearing Deposit Liabilities, by Component [Abstract] Operating revenues: Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]