Income Statement [Abstract] Statement [Table] Statement [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Merchant card fees Credit and Debit Card [Member] Outsourced services License and Service [Member] Other Product and Service, Other [Member] Statement [Line Items] Statement [Line Items] REVENUE: Revenues [Abstract] Total revenue Revenue from Contract with Customer, Excluding Assessed Tax OPERATING EXPENSES: Operating Expenses [Abstract] Cost of services Cost of Goods and Services Sold Salary and employee benefits Labor and Related Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Selling, general and administrative Selling, General and Administrative Expense Change in fair value of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Other operating expenses Other Cost and Expense, Operating Total operating expenses Operating Expenses Income from operations Operating Income (Loss) OTHER INCOME (EXPENSES): Other Nonoperating Income (Expense) [Abstract] Interest income Interest Income, Other Interest expense Interest Expense Debt modification and extinguishment expenses Gains (Losses) on Restructuring of Debt Change in fair value of warrant liability Fair Value Adjustment of Warrants Equity in loss and impairment of unconsolidated entities Income (Loss) from Equity Method Investments Total other expenses Nonoperating Income (Expense) Net (loss) income before income taxes Income (Loss) Attributable to Parent, before Tax Income tax benefit Income Tax Expense (Benefit) Net (loss) income Net Income (Loss) Attributable to Parent (Loss) income per common share: Earnings Per Share, Basic and Diluted [Abstract] Basic and diluted (in dollars per share) Earnings Per Share, Basic PRO FORMA (C-corporation basis) (Note 8): Change In Tax Basis Abstract [Abstract] Change In Tax Basis Abstract [Abstract] Income tax expense (benefit) Business Acquisition, Pro Forma Income Tax Expense (Benefit) Business Acquisition, Pro Forma Income Tax Expense (Benefit) Net (loss) income Business Acquisition, Pro Forma Net Income (Loss) (Loss) income per common share: Earnings Per Share, Pro Forma [Abstract] Basic and diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic And Diluted Business Acquisition, Pro Forma Earnings Per Share, Basic And Diluted Statement of Stockholders' Equity [Abstract] Restatement [Axis] Restatement [Axis] Restatement [Domain] Restatement [Domain] Previously Reported Previously Reported [Member] Restatement Adjustment Restatement Adjustment [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Preferred Stock Preferred Stock [Member] Additional Paid-In Capital (Deficit) Additional Paid-in Capital [Member] Accumulated Deficit Retained Earnings [Member] Members' Equity [Abstract] Members' Equity [Abstract] Units (in shares) Common Unit, Outstanding Amount Members' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance (in shares) Shares, Outstanding Beginning balance Stockholders' Equity Attributable to Parent Cash distributions to members in 2018 prior to July 25 Dividends Redemptions (in shares) Stock Redeemed or Called During Period, Shares Redemptions Stock Redeemed or Called During Period, Value Pro-rata adjustment (in shares) Stock Issued During Period, Shares, Conversion of Units Pro-rata adjustment Stock Issued During Period, Value, Conversion of Units Effects of Founders' Share Agreement, net (in shares) Stockholders' Equity, Other Shares Effects of Founders' Share Agreement Stockholders' Equity, Other Equity-based compensation arrangements (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Equity-based compensation arrangements Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Recapitalization costs Recapitalization Costs Net deferred income taxes related to loss of partnership status Stockholders' Equity, Change in Reporting Entity Common stock issued for business acquisitions (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Common stock issued for business acquisitions Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Net loss Ending balance (in shares) Ending balance Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Consumer Payments Consumer Payments [Member] Consumer Payments [Member] Commercial Payments and Managed Services Commercial Payments And Managed Services [Member] Commercial Payments And Managed Services [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenues: Operating income (loss): Net Income (Loss) Attributable to Parent [Abstract] Income from operations Depreciation and amortization: Depreciation, Amortization and Accretion, Net [Abstract] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Accounting Policies [Abstract] The Company and Basis of Presentation Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net (loss) income Adjustment to reconcile net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Equity-based compensation Share-based Compensation Amortization of debt issuance costs Amortization of Debt Issuance Costs Amortization of debt discount Amortization of Debt Discount (Premium) Equity in loss and impairment of unconsolidated entities Provision for deferred income taxes Deferred Income Tax Expense (Benefit) Change in fair value of warrant liability Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Payment in kind interest Paid-in-Kind Interest Change in operating assets and liabilities, net of business acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Settlement assets Increase (Decrease) In Settlement Assets Increase (Decrease) In Settlement Assets Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Notes receivable Increase (Decrease) in Notes Receivables Accounts payable, accrued expenses and accrued residual commissions Increase (Decrease) In Accounts Payable, Accrued Liabilities And Accrued Sales Commissions Increase (Decrease) In Accounts Payable, Accrued Liabilities And Accrued Sales Commissions Settlement obligations Increase (Decrease) In Settlement Liability Increase (Decrease) In Settlement Liability Customer deposits Increase (Decrease) in Customer Deposits Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Acquisition of businesses Payments to Acquire Businesses, Net of Cash Acquired Additions to property and equipment Payments to Acquire Property, Plant, and Equipment Acquisitions of merchant portfolios Payments to Acquire Intangible Assets Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of long term debt Proceeds from Issuance of Long-term Debt Repayment of long term debt Repayments of Long-term Debt Debt issuance costs Payments of Debt Issuance Costs Distributions to members Payments of Dividends Redemption of membership interest Payments For Redemptions Of Membership Interests Payments For Redemptions Of Membership Interests Recapitalization proceeds Proceeds From Recapitalization Proceeds From Recapitalization Founders shares redemptions Payments For Redemption Of Founders Shares Payments For Redemption Of Founders Shares Redemption of warrants Payments for Repurchase of Warrants Recapitalization costs Payments of Stock Issuance Costs Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Change in cash and restricted cash: Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect [Abstract] Net decrease in cash and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash and restricted cash at the beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and restricted cash at September 30 Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Recognition of initial net deferred income tax asset Deferred Tax Asset, Recognition Deferred Tax Asset, Recognition Non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Notes receivable from sellers used as partial consideration for business acquisitions Notes Issued Purchase of property and equipment through accounts payable Noncash or Part Noncash Acquisition, Fixed Assets Acquired Cash consideration payable for business acquisition Business Combination, Contingent Consideration, Liability Recapitalization costs remaining in accounts payable Recapitalization Costs Remaining Recapitalization Costs Remaining Common unit repurchase obligation Noncash Or Part Noncash Acquisition, Common Unit Repurchase Obligation Noncash Or Part Noncash Acquisition, Common Unit Repurchase Obligation Accounts Payable [Abstract] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Syndicate of Lenders Syndicate Of Lenders [Member] Syndicate Of Lenders [Member] Goldman Sachs Specialty Lending Group Goldman Sachs Specialty Lending Group [Member] Goldman Sachs Specialty Lending Group [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Line of Credit Line of Credit [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Payment-in-Kind Interest Rate Payment-In-Kind Interest Rate [Member] Payment-In-Kind Interest Rate Debt Instrument [Line Items] Debt Instrument [Line Items] Total Debt Long-term Debt, Gross Less: current portion of long-term debt Long-term Debt, Current Maturities Less: unamortized debt discounts Debt Instrument, Unamortized Discount Less: deferred financing costs Debt Issuance Costs, Net Total long-term debt Long-term Debt Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Interest rate during period Line of Credit Facility, Interest Rate at Period End Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Equity-Based Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Earnings Per Share [Abstract] Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Antidilutive Securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Consolidation Consolidation, Policy [Policy Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Cost of Services Cost of Sales, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Fair Value of Contingent Consideration in Business 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[Member] Revolving Credit Facility Revolving Credit Facility [Member] Base Rate Base Rate [Member] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] GS Warrants GS Warrants [Member] GS Warrants [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Class A Common Class A [Member] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Face amount of debt Debt Instrument, Face Amount Debt discount Additional borrowings Line Of Credit Facility, Additional Borrowings Line Of Credit Facility, Additional Borrowings Applicable margin Unused commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Debt issuance costs incurred Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Capitalized incremental deferred finance costs Capitalized Incremental Deferred Finance Costs Capitalized Incremental Deferred Finance Costs Capitalized lender fees Capitalized Lender Fees Capitalized Lender Fees Line of credit Long-term Line of Credit Interest expense Quarterly principal payment Debt Instrument, Periodic Payment Mandatory prepayment based on excess cash flow Debt Instrument, Mandatory Prepayment Based On Excess Cash Flow Debt Instrument, Mandatory Prepayment Based On Excess Cash Flow Total debt Warrants, percentage of outstanding stock available for purchase Class Of Warrant Or Right, Percentage Of Outstanding Stock Available For Purchase Class Of Warrant Or Right, Percentage Of Outstanding Stock Available For Purchase Warrants, term Warrants and Rights Outstanding, Term Warrants, exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Warrant liability Warrants and Rights Outstanding Cash paid for cancellation of warrants Deferred financing costs Amortization of debt issuance costs in interest expense Interest Expense, Amortization Of Debt Issuance Costs Interest Expense, Amortization Of Debt Issuance Costs Fair Value Disclosures [Abstract] Fair Value, Liabilities Measured on Recurring Basis Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Equity [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] MI Acquisitions MI Acquisitions [Member] MI Acquisitions [Member] Two Business Acquisition Two Business Acquisition [Member] Two Business Acquisition [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2018 Plan 2018 Equity Incentive Plan [Member] 2018 Equity Incentive Plan [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Common Stockholders of MI Acquisitions Common Stockholders Of MI Acquisitions [Member] Common Stockholders Of MI Acquisitions [Member] MI Acquisitions Founders MI Acquisitions Founders [Member] MI Acquisitions Founders [Member] Sellers Of Priority Sellers Of Priority [Member] Sellers Of Priority [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Tranche One Share-based Compensation Award, Tranche One [Member] Tranche Two Share-based Compensation Award, Tranche Two [Member] Call-Right Call-Right [Member] Call-Right [Member] MI Acquisitions Warrants MI Acquisitions Warrants [Member] MI Acquisitions Warrants [Member] MI Acquisitions Warrants, Public MI Acquisitions Warrants, Public [Member] MI Acquisitions Warrants, Public [Member] MI Acquisitions Warrants, Private MI Acquisitions Warrants, Private [Member] MI Acquisitions Warrants, Private [Member] MI Acquisitions Purchase Options MI Acquisitions Purchase Options [Member] MI Acquisitions Purchase Options [Member] Additional Paid-In Capital Common Class B Common Class B [Member] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] January 17, 2018 (1st Redemption) January 17, 2018 1 [Member] January 17, 2018 1 [Member] January 17, 2018 (2nd Redemption) January 17, 2018 2 [Member] January 17, 2018 2 [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company Parent Company [Member] Class of Stock [Line Items] Class of Stock [Line Items] Common units (in shares) Common Unit, Issued Business acquisition, shares issued (in shares) Total consideration transferred Business Combination, Consideration Transferred Number of business combinations Number of Businesses Acquired Issued during period (in shares) Stock Issued During Period, Shares, New Issues Number of shares converted Conversion of Stock, Shares Converted Payments to acquire business Payments to Acquire Businesses, Gross Business acquisition, units issued (in shares) Business Acquisition, Equity Units Issued Or Issuable, Number Of Shares Business Acquisition, Equity Units Issued Or Issuable, Number Of Shares Business acquisition, number of shares per unit (in shares) Business Acquisition, Equity Units Issued Or Issuable, Number Of Shares Per Unit Business Acquisition, Equity Units Issued Or Issuable, Number Of Shares Per Unit Business acquisition, number of warrants per unit (in shares) Business Acquisition, Equity Units Issued Or Issuable, Number Of Warrants Per Unit Business Acquisition, Equity Units Issued Or Issuable, Number Of Warrants Per Unit Business acquisition, number of shares forfeited (in shares) Business Acquisition, Equity Interest Forfeited, Number Of Shares Business Acquisition, Equity Interest Forfeited, Number Of Shares Common stock issued (in shares) Common Stock, Shares, Issued Number of votes per share Common Stock, Number Of Votes Per Share Common Stock, Number Of Votes Per Share Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Common shares issued as earn-out consideration (in shares) Common Stock, Shares Authorized, Earn-Out Consideration Common Stock, Shares Authorized, Earn-Out Consideration Earn-out consideration, future minimum EBITDA Earn-Out Consideration, Future Minimum EBITDA Earn-Out Consideration, Future Minimum EBITDA Earn-out consideration, minimum stock price (in dollars per share) Earn-Out Consideration, Minimum Stock Price Earn-Out Consideration, Minimum Stock Price Common shares issued as earn-out consideration (in shares) Common Stock, Shares Issued, Earn-Out Consideration Common Stock, Shares Issued, Earn-Out Consideration Warrants and rights, exercise price (in dollars per share) Warrants and rights, number of shares allowed to purchase (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants and rights, term Warrants, redemption price (in dollars per share) Class Of Warrant Or Right, Redemption Price Of Warrants Or Rights Class Of Warrant Or Right, Redemption Price Of Warrants Or Rights Warrants, minimum stock price (in dollars per share) Class Of Warrant Or Right, Minimum Stock Price Class Of Warrant Or Right, Minimum Stock Price Call-right, aggregate purchase price (in dollars per share) Class Of Warrant Or Right, Aggregate Purchase Price Class Of Warrant Or Right, Aggregate Purchase Price Transaction costs Business Combination, Acquisition Related Costs Redemptions of common stock (in shares) Redemptions of common stock Common unit repurchase obligation, purchase price Common Unit Repurchase Obligation, Purchase Price Common Unit Repurchase Obligation, Purchase Price Common unit repurchase obligation Common Unit Repurchase Obligation Common Unit Repurchase Obligation Reclass of common unit repurchase obligation Reclass Of Common Unit Repurchase Obligation Reclass Of Common Unit Repurchase Obligation Ownership percentage Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Common shares authorized (in shares) Common Stock, Shares Authorized Member distributions Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid Accounts payable Accounts Payable Accrued compensation Employee-related Liabilities, Current Other accrued expenses Other Accrued Liabilities, Current Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Equity Stockholders' Equity Note Disclosure [Text Block] Amortization of intangible assets Amortization of Intangible Assets Goodwill accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Subsequent Events [Abstract] Advances on line of credit Proceeds from Lines of Credit Acquisition of merchant portfolios Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] PPS Tech and PPS Northeast Priority Payment Systems Tech Partners And Priority Payment Systems Northeast [Member] Priority Payment Systems Tech Partners And Priority Payment Systems Northeast [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Contingent consideration Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Settlement Assets Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Settlement Obligations Other Current Liabilities [Table Text Block] Subsequent Events Subsequent Events [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] PayRight PayRight [Member] PayRight [Member] RadPad/Landlord Station RadPad And Landlord Station [Member] RadPad And Landlord Station [Member] PPS Northeast Priority Payment Systems Northeast, Inc. [Member] Priority Payment Systems Northeast, Inc. [Member] PPS Tech Priority Payment Systems Tech Partners [Member] Priority Payment Systems Tech Partners [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Balance at December 31, 2017 Goodwill Goodwill acquired from business combinations Goodwill, Acquired During Period Balance at September 30, 2018 Statement of Financial Position [Abstract] Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Settlement Assets and Obligations Settlement Assets And Obligations [Text Block] Settlement Assets And Obligations [Text Block] Schedule of Segment Reporting Information by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Earnings Per Share, Basic Earnings Per Share, Basic, Other Disclosures [Abstract] Numerator: Earnings Per Share, Basic [Abstract] Less: Distributions to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net (loss) income available to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Basic (loss) earnings per share (in dollars per share) Earnings Per Share, Diluted Earnings Per Share, Diluted, Other Disclosures [Abstract] Numerator: Earnings Per Share, Diluted [Abstract] Less: Gain on warrant liability (Gain) Loss On Warrant (Gain) Loss On Warrant Net (loss) income available to common stockholders Net Income (Loss) Available to Common Stockholders, Diluted Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Dilutive common share equivalents (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average diluted shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (loss) earnings per share (in dollars per share) Earnings Per Share, Diluted Property, Plant and Equipment [Abstract] Property, Equipment and Software Property, Plant and Equipment [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Business Acquisition [Line Items] Business Acquisition [Line Items] IPO proceeds Proceeds from Issuance of Common Stock Number of reportable segments Number of Reportable Segments Number of parties involved in a contract Number Of Parties Involved In A Consumer Payment Contract Number Of Parties Involved In A Consumer Payment Contract Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Furniture and fixtures Furniture and Fixtures [Member] Equipment Equipment [Member] Computer software Software and Software Development Costs [Member] Leasehold improvements Leasehold Improvements [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, equipment and software, gross Property, Plant and Equipment, Gross Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, equipment, and software, net Property, Plant and Equipment, Net Useful Life Property, Plant and Equipment, Useful Life Depreciation expense Depreciation Related Party Transactions [Abstract] Expenses from transactions with related party Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party Deferred Tax Assets: Deferred Tax Assets, Gross [Abstract] Accruals and reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Goodwill Deferred Tax Assets, Goodwill Deferred Tax Assets, Goodwill Intangible assets Deferred Tax Assets, Intangible Assets Deferred Tax Assets, Intangible Assets Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Business transaction costs Deferred Tax Assets, Transaction Costs Deferred Tax Assets, Transaction Costs Other Deferred Tax Assets, Other Gross deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred Tax Liabilities: Deferred Tax Liabilities, Gross [Abstract] Prepaid assets Deferred Tax Liabilities, Prepaid Expenses Investment in partnership Deferred Tax Liabilities, Investments Property, plant, and equipment Deferred Tax Liabilities, Property, Plant and Equipment Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax assets Deferred Tax Assets, Net Earnings (Loss) Per Share Earnings Per Share [Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Trading Symbol Trading Symbol Document Period End Date Document Period End Date Amendment Flag Amendment Flag Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Ex Transition Period Entity Ex Transition Period Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Business Combinations [Abstract] Acquisitions of Businesses By Priority Business Combination Disclosure [Text Block] Deferred income taxes, net Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Deferred tax assets, valuation allowance Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Merchant portfolios Service Agreements [Member] Non-compete agreements Noncompete Agreements [Member] Tradename Trade Names [Member] Acquired technology Developed Technology Rights [Member] Customer relationships Customer Relationships [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets, gross Finite-Lived Intangible Assets, Gross Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets, net Finite-Lived Intangible Assets, Net 2019 Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months 2020 Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five Total Debt Schedule of Equity Structure Schedule of Stockholders Equity [Table Text Block] Property, Equipment and Software Property, Plant and Equipment Disclosure [Text Block] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Schedule of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Goodwill Settlement Assets: Settlement Assets [Abstract] Settlement Assets [Abstract] Due from card processors Settlement Assets, Current Settlement Obligations: Settlement Liabilities [Abstract] Settlement Liabilities [Abstract] Due to ACH payees Settlement Liabilities, Current Total settlement obligations, net Settlement Assets (Liabilities), Net, Current Settlement Assets (Liabilities), Net, Current ASSETS Assets [Abstract] Current Assets: Assets, Current [Abstract] Cash Cash Equivalents, at Carrying Value Restricted cash Restricted Cash and Cash Equivalents Accounts receivable, net of allowance for doubtful accounts of $295 and $484, respectively Accounts Receivable, Net, Current Due from related parties Due from Related Parties, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Current portion of notes receivable Notes, Loans and Financing Receivable, Net, Current Settlement assets Total current assets Assets, Current Notes receivable, less current portion Notes, Loans and Financing Receivable, Net, Noncurrent Property, equipment, and software, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Deferred income taxes, net Deferred Tax Assets, Net, Noncurrent Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY (DEFICIT) Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable and accrued expenses Accrued residual commissions Accrued Sales Commission, Current Customer deposits Customer Deposits, Current Current portion of long-term debt Settlement obligations Current portion of common unit repurchase obligation Common Unit Repurchase Obligation, Current Common Unit Repurchase Obligation, Current Total current liabilities Liabilities, Current Long-term debt, net of discounts and deferred financing costs Long-term Debt, Excluding Current Maturities Common unit repurchase obligation Common Unit Repurchase Obligation, Noncurrent Common Unit Repurchase Obligation, Noncurrent Other liabilities Other Liabilities, Noncurrent Total long term liabilities Liabilities, Noncurrent Total liabilities Liabilities Commitments and Contingencies (Note 9) Commitments and Contingencies Equity (deficit) Retained Earnings (Accumulated Deficit) Total liabilities and equity (deficit) Liabilities and Equity Fair Value Fair Value Disclosures [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Warrants on common stock Warrant [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive securities that were excluded from EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount GS 1.8% Warrants GS 1.8% Warrants [Member] GS 1.8% Warrants [Member] GS 2.2% Warrants GS 2.2% Warrants [Member] GS 2.2% Warrants [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Warrant Liability Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Extinguishment Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Issuance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Adjustment to fair value included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Change in fair value of warrant liability Ending balance Schedule of Components of Deferred Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Tranche Three Share-based Compensation Award, Tranche Three [Member] Plan Priority Holdings Management Incentive Plan [Member] Priority Holdings Management Incentive Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Issued during period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Equity-based compensation Allocated Share-based Compensation Expense Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Shares authorized, percent of total common stock Common Stock, Shares Authorized, Percent Of Total Common Stock Common Stock, Shares Authorized, Percent Of Total Common Stock Related Party Transactions Related Party Transactions Disclosure [Text Block] Segment Information Segment Reporting Disclosure [Text Block] Common shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Shares - Authorized (in shares) Common Shares - Issued (in shares) Preferred Stock - Authorized (in shares) Preferred Stock - Issued (in shares) Preferred Stock, Shares Issued Schedule of Accounts Payable and Accrued Expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Subsidiaries Subsidiaries [Member] PayRight RadPad and Landlord Station PPS Northeast PPS Tech Priority PayRight Health Solutions, LLC Priority PayRight Health Solutions, LLC [Member] Priority PayRight Health Solutions, LLC [Member] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Intangible assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Total consideration transferred Fair value of profit and distribution rights Business Acquisition, Consideration Transferred, Profit And Distribution Rights Business Acquisition, Consideration Transferred, Profit And Distribution Rights Equity interest in acquiree, carrying value Equity Method Investments Equity interest in acquiree, fair value Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Impairment loss Asset Impairment Charges Debt incurred Business Combination, Consideration Transferred, Liabilities Incurred Contingent consideration maximum Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Schedule of Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Maturities of Long-Term Debt Schedule of Maturities of Long-term Debt [Table Text Block]