0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Operations and Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Changes in Stockholders' Deficit and Non-Controlling Interests link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Nature of Business and Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Revenues link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Settlement Assets and Obligations link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Notes Receivable link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Property, Equipment and Software link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Goodwill and Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Accounts Payable and Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Debt Obligations link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Stockholders' Deficit link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Stock-based Compensation link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Fair Value link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Earnings (Loss) per Common Share link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Nature of Business and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Nature of Business and Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Revenues (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Settlement Assets and Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Notes Receivable (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Property, Equipment and Software (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Accounts Payable and Accrued Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Debt Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Stock-based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Earnings (Loss) per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Nature of Business and Significant Accounting Policies - The Business (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Nature of Business and Significant Accounting Policies - Contract Acquisitions Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Nature of Business and Significant Accounting Policies - Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Nature of Business and Significant Accounting Policies - Allowance for Doubtful Accounts Receivable and Notes Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Nature of Business and Significant Accounting Policies - Schedule of Allowance for Trade Receivables and Settlement Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Nature of Business and Significant Accounting Policies - Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Nature of Business and Significant Accounting Policies - Schedule of Property and Equipment and Costs Incurred to Develop Software for Internal Use (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Nature of Business and Significant Accounting Policies - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Nature of Business and Significant Accounting Policies - Restructuring Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Nature of Business and Significant Accounting Policies - Accrued Residual Commissions (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Nature of Business and Significant Accounting Policies - ISO Deposit and Loss Reserve (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Nature of Business and Significant Accounting Policies - Share-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Nature of Business and Significant Accounting Policies - Non-voting Incentive Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Nature of Business and Significant Accounting Policies - Concentration of Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Acquisitions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Acquisitions - Schedule of Purchase Price Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Revenues - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Revenues - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Revenues - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Settlement Assets and Obligations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Settlement Assets and Obligations - Schedule of Settlement Assets and Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Notes Receivable - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Notes Receivable - Schedule of Reconciliation for Activity within Notes Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Notes Receivable - Schedule of Principal Payments to be Received (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Property, Equipment and Software (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Goodwill and Intangible Assets - Goodwill Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Goodwill and Intangible Assets - Schedule of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Goodwill and Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Goodwill and Intangible Assets - Amortization Expense By Year (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Leases - Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Leases - Components of Lease Costs and Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Leases - Schedule of Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Leases - Schedule of Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Accounts Payable and Accrued Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Debt Obligations - Schedule of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Debt Obligations - Rolling Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Debt Obligations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Debt Obligations - Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Income Taxes - Components of Income Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Income Taxes - Components of Income Tax Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Income Taxes - Income Tax Benefit Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Income Taxes - Income Taxes Paid By Jurisdiction (Net Of Refunds) (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Income Taxes - Schedule of Components of Deferred Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Stockholders' Deficit - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Stock-based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Stock-based Compensation - Schedule of Equity-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Stock-based Compensation - Schedule of 2018 Equity Incentive Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Stock-based Compensation - Schedule of Stock Options Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - Stock-based Compensation - Schedule of Equity-classified Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - Employee Benefit Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - Related Party Transactions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - Commitment and Contingencies - Minimum Annual Commitments with Third-party Processors (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - Commitments and Contingencies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - Commitments and Contingencies - Contingent/Deferred Consideration (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - Fair Value - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - Segment Information - Schedule of Reportable Segments and Reconciliation to Income (Loss) Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - Segment Information - Schedule of Reconciliation of Adjusted EBITDA to Income (Loss) Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - Segment Information - Schedule of Adjustments for Corporate Items (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - Segment Information - Schedule of Depreciation and Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - Earnings (Loss) per Common Share - Schedule of Earnings (Loss) Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - Earnings (Loss) per Common Share - Schedule of Antidilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink