Stock repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Net long-term Notes receivable, net of allowance Financing Receivable, after Allowance for Credit Loss, Noncurrent Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] U.S statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Point earned for each wire transfer processed Point Earned for each Wire Transfer Processed Number of points earned for each wire transfer processed. Net income Net income Net income for basic and diluted earnings per common share Net Income (Loss) Attributable to Parent Entity Emerging Growth Company Entity Emerging Growth Company the “2018 Plan” 2018 Omnibus Equity Compensation Plan [Member] Name of the "2018 Plan". Commissions payable to sending agents Accounts Payable to Agents Current Carrying value as of the balance sheet date of obligations incurred and payable to agents. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued salaries and benefits Employee-related Liabilities, Current Statistical Measurement [Domain] Statistical Measurement [Domain] Entity Address, Address Line One Entity Address, Address Line One Other Intangible Assets Other Intangible Assets [Member] Independent Directors Share-based Payment Arrangement, Nonemployee [Member] Stock repurchase program, annual authorized amount for related parties Stock Repurchase Program, Annual Authorized Amount For Related Parties Stock Repurchase Program, Annual Authorized Amount For Related Parties PREPAID EXPENSES AND OTHER ASSETS Prepaid Expenses And Other Assets [Text Block] The entire disclosure for prepaid expenses and other assets. Charge-offs Accounts and Financing Receivable, Allowance for Credit Loss, Writeoff Accounts and Financing Receivable, Allowance for Credit Loss, Writeoff Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Changes in Deferred Revenue Loyalty Program Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Entity Filer Category Entity Filer Category Forfeited RSUs (in shares) Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Credit Agreement Credit Agreement [Member] Company entered into a new financing agreement (the "Credit Agreement") with a group of banking institutions. Allowance for credit losses Financing Receivable, Allowance for Credit Loss, Current Other assets Other assets Other Assets, Noncurrent Exercised (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award Options Exercised in Period Weighted Average Grant Date Fair Value Weighted average grant-date fair value of non-vested options exercised. Net current Notes receivable, net of allowance Financing Receivable, after Allowance for Credit Loss, Current Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Net increase in cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Revenue deferred during the period Contract with Customer, Liability, Revenue Deferred Amount of obligation to transfer good or service to customer for which consideration has become receivable in the period. Recoveries Accounts and Financing Receivable, Allowance for Credit Loss, Recovery Accounts and Financing Receivable, Allowance for Credit Loss, Recovery Notes receivable, current Financing Receivable, before Allowance for Credit Loss, Current Document Fiscal Year Focus Document Fiscal Year Focus Amortization expense Amortization of Intangible Assets Stock repurchase program, remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Securities excluded from computation of diluted loss per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Revenue recognized during the period Contract with Customer, Liability, Revenue Recognized Prepaid income taxes Prepaid Taxes Incremental Facility Incremental Facility [Member] Arrangement in which the total specified maximum amount of a credit facility borrowing capacity can be increased incrementally. Prepaid fees and services Prepaid Fees Amount of asset related to consideration paid in advance for fees that provides economic benefits within a future period of one year or the normal operating cycle, if longer. Number of states in which entity operates Number of States in which Entity Operates Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Award Type [Domain] Award Type [Domain] Point expiration period after end of program Point expiration period after Completion of program Period after which the point will expire immediately after the completion of the period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Credit Facility [Domain] Credit Facility [Domain] ASSETS Assets [Abstract] Exercisable, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Schedule of Wire Transfer and Money Orders Payable Schedule of Wire Transfer and Money Orders Payable [Table Text Block] Schedule of Wire Transfer and Money Orders Payable GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Entity Address, City or Town Entity Address, City or Town Trade Names Trade Names [Member] Retained Earnings Retained Earnings [Member] Debt Instrument [Axis] Debt Instrument [Axis] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Long-term liabilities: Liabilities, Noncurrent [Abstract] Ownership percentage Noncontrolling Interest, Ownership Percentage by Parent COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Wire transfers and money orders payable, net Increase (Decrease) in Wire Transfer and Money Order Payables The increase (decrease) during the reporting period in the amount due from customers in wire transfer and money order payables. Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Year 4 Debt Instrument, Redemption, Period Four [Member] Accounts receivable, net Increase (Decrease) in Accounts Receivable Weighted-Average Remaining Contractual Term (Years) Weighted Average Remaining Contractual Term [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Entity Interactive Data Current Entity Interactive Data Current Number of company owned stores Number of Company Owned Stores Number of stores owned by the company. Basic (in dollars per share) Earnings per common share – basic (in dollars per share) Earnings Per Share, Basic REVENUES Revenue from Contract with Customer [Text Block] Nonvested at beginning of period (in shares) Nonvested at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Document Type Document Type Unamortized debt origination costs Unamortized Debt Issuance Expense Prepaid wires, net Prepaid Expense, Current Revenues from Contracts with Customers Disaggregation of Revenue [Table Text Block] Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] WIRE TRANSFERS AND MONEY ORDERS PAYABLE, NET Wire Transfer and Money Orders Payable [Text Block] Wire Transfer and Money Orders Payable Entity Current Reporting Status Entity Current Reporting Status RSA Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Agent incentives advances Advanced Commissions, Noncurrent Advanced Commissions, Noncurrent Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Intermex Mexico Intermex Transfers de Mexico, S.A [Member] Entity wholly owned or controlled by another entity. Provision for credit losses Accounts Receivable, Credit Loss Expense (Reversal) Wire transfer and money order fees, net Wire Transfer and Money Order [Member] Fees from wire transfer and money order services provided to the customers. Long-term debt, gross Long-term Debt, Gross Goodwill Goodwill [Roll Forward] Year 2 Debt Instrument, Redemption, Period Two [Member] Between 1 and 2 years Unpaid Principal Balance Maturities Of Notes Receivable, Between One to Two Years Maturities on note receivable in the second year following the date of the financial statements. Plan Name [Axis] Plan Name [Axis] Uncommitted Incremental Facility Uncommitted Incremental Facility [Member] Uncommitted Incremental Facility Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Amortization expense Goodwill, Impairment Loss Other Other Liabilities Document Transition Report Document Transition Report Weighted-average common shares outstanding: Shares: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Service charges from agents and banks Service Charges from Agents and Banks Amount of charges from agents and banks for banking activities. State tax expense, net of federal Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Base Rate Base Rate [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Intermex Wire Transfer II, LLC Intermex Wire Transfer II, LLC [Member] A technology enabled wire transfer and financial processing solutions provider. Deferred revenue loyalty program Beginning balance Ending balance Contract with Customer, Liability, Current 2025 Operating Leases, Future Minimum Payments, Due in Four Years Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Additional paid-in capital Additional Paid in Capital LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Point expiration period for non completion of wire transfer transaction Point Expiration Period for Non Completion of Wire Transfer Transaction Period after which the point will expire, if the customer has not initiated and completed an eligible wire transfer transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. EARNINGS PER SHARE Earnings Per Share [Text Block] Acquisition of treasury stock, at cost Value of treasury stock repurchased Treasury Stock, Value, Acquired, Cost Method Operating expenses: Operating Expenses [Abstract] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Four Exercise of stock options, net of shares withheld for taxes Stock Issued During Period, Value, Stock Options Exercised Minimum Minimum [Member] 2023 Operating Leases, Future Minimum Payments, Due in Two Years Debt origination costs, current Debt Issuance Costs, Current, Net Less: Debt origination costs Debt Issuance Costs, Net Trading Symbol Trading Symbol Current liabilities: Liabilities, Current [Abstract] DEBT Debt Disclosure [Text Block] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Exercisable, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Number of development years for state-of-the-art system Number of Development Years for State-of-the-art System Number of development years for state-of-the-art system in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Customer voided wires payable Customer Voided Wires Payable Customer Voided Wires Payable Accounting Policies [Abstract] Accounting Policies [Abstract] Weighted average remaining contractual term, outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Accrued other professional fees Accrued Professional Fees, Current Common stock $0.0001 par value; 230,000,000 shares authorized, 38,739,480 and 38,217,125 shares issued and 38,669,040 and 38,217,125 shares outstanding as of September 30, 2021 and December 31, 2020, respectively. Common Stock, Value, Issued Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Weighted-average period for recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Under 1 year Unpaid Principal Balance, Maturities of Notes Receivable, Under Year One Maturities on note receivable with in first year following the date of the financial statements. Nonvested at beginning of period (in dollars per share) Nonvested at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Basis of Accounting Basis of Accounting, Policy [Policy Text Block] PSUs Performance Shares [Member] Funds held by seized banking entities Funds Held by Seized Banking Entities, Noncurrent Funds Held by Seized Banking Entities, Noncurrent Commitments and contingencies Commitments and Contingencies Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accounts receivable allowance Allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current RSAs RSAs Restricted Stock [Member] 2024 Operating Leases, Future Minimum Payments, Due in Three Years Debt origination costs Debt origination costs Payments of Debt Issuance Costs Receivables [Abstract] Foreign exchange gain, net Foreign Exchange Gain [Member] Revenue from foreign exchange gain. Schedule of Other Assets Schedule of Other Assets, Noncurrent [Table Text Block] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Ownership [Axis] Ownership [Axis] Document Period End Date Document Period End Date Effect of dilutive securities (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Entity Registrant Name Entity Registrant Name Treasury stock (in shares) Treasury Stock, Shares Wire transfers payable, net Wire Transfers Payable Wire Transfers Payable Cash Cash Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Prepaid expenses and other current assets Prepaid expenses and other assets Prepaid Expense and Other Assets, Current Restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Units, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Units, Net of Forfeitures ACCOUNTS RECEIVABLE AND NOTES RECEIVABLE, NET OF ALLOWANCE Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Notes collateralized Financing Receivable, Secured Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized financing receivables (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations are secured by assets of the borrower. Stock options Share-based Payment Arrangement, Option [Member] Prepaid wires, net Increase (Decrease) in Prepaid Expense Equity [Abstract] Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Prepaid Expense and Other Assets [Abstract] Prepaid Expense and Other Assets [Abstract] Common Stock Common Stock [Member] Variable Rate [Axis] Variable Rate [Axis] Operating income Operating Income (Loss) Other income Financial Service, Other [Member] 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Property, Plant and Equipment [Abstract] Share-based compensation Share-based Payment Arrangement, Noncash Expense Variable Rate [Domain] Variable Rate [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Treasury Stock Treasury Stock [Member] RSU Activity Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Borrowings under term loan facility Proceeds from Lines of Credit Accrued bank charges Bank Charges Payable, Current Carrying value as of the balance sheet date of obligations incurred towards bank charges. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Intangibles Intangible Assets Net Excluding Goodwill [Roll Forward] A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. Issuance of common stock for cashless exercise of stock options Stock Issued Prepaid insurance Prepaid Insurance Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Maturities of Notes Receivable Schedule of Maturities of Notes Receivable [Table Text Block] Tabular disclosure of maturities for notes receivable. Total adjustments Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Award Type [Axis] Award Type [Axis] 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Exercisable ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Option, Exercisable, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Option, Exercisable, Weighted Average Grant Date Fair Value Supplemental disclosure of non-cash financing activity: Noncash Financing Items [Abstract] Noncash Financing Items Total stockholders’ equity Beginning balance Ending balance Stockholders' Equity Attributable to Parent Common shares, issued (in shares) Common Stock, Shares, Issued Beginning balance Ending Balance Allowance for credit losses Accounts and Financing Receivable, Allowance for Credit Loss Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other assets Other Assets, Miscellaneous, Noncurrent Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Repurchases of common stock Payments for Repurchase of Common Stock Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Debt instrument, face amount Debt Instrument, Face Amount Interest expense Interest Expense Effective interest rate Debt Instrument, Interest Rate, Effective Percentage City Area Code City Area Code Retained earnings Retained Earnings (Accumulated Deficit) Share Awards Share-based Payment Arrangement [Member] Stock options term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period RSUs Restricted Stock Units (RSUs) [Member] Unused line fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Debt instrument, covenant, restricted payment threshold Debt Instrument, Covenant, Restricted Payment Threshold Debt Instrument, Covenant, Restricted Payment Threshold Interest rate on notes receivable Receivable with Imputed Interest, Effective Yield (Interest Rate) Periodic repayment percentage Debt Instrument, Periodic Payment, Percentage of Principal The percentage of the original amount borrowed to be paid for each year. Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Number of countries in which entity operates Number of Countries in which Entity Operates Proceeds from exercise of stock options Proceeds from Stock Options Exercised Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Income tax provision Total tax provision Income Tax Expense (Benefit) Accounts receivable, net of allowance of $2,156 and $1,503, respectively Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Intangible assets amortization period, under accelerated method Finite Lived Intangible Asset Useful Life Under Accelerated Method Useful life of finite-lived intangible assets under accelerated method, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Equity Components [Axis] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total current assets Assets, Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period MEXICO MEXICO Entity File Number Entity File Number Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Current portion of long-term debt, net Less: Current portion of long-term debt Long-term Debt, Current Maturities Product and Service [Axis] Product and Service [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Entity Small Business Entity Small Business Grantee Status [Axis] Grantee Status [Axis] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Equity Component [Domain] Equity Component [Domain] Debt instrument, covenant, repurchase of common stock threshold Debt Instrument, Covenant, Repurchase Of Common Stock Threshold Debt Instrument, Covenant, Repurchase Of Common Stock Threshold Outstanding beginning balance (in dollars per share) Outstanding ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price Year 3 Debt Instrument, Redemption, Period Three [Member] Adjustment from foreign currency translation, net Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Entity Ex Transition Period Entity Ex Transition Period Consolidated leverage ratio Debt to Total Assets Ratio Refers to the ratio of total liabilities to total assets of the entity. Statement [Line Items] Statement [Line Items] Write off from financial institution closure Write Off From Financial Institution Closure Write Off From Financial Institution Closure Grantee Status [Domain] Grantee Status [Domain] Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-based compensation Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture A&R Credit Agreement A&R Credit Agreement [Member] A&R Credit Agreement Notes receivable, long-term Financing Receivable, before Allowance for Credit Loss, Noncurrent Wire transfer and money order fees Wire Transfer and Money Order Fees, Gross The gross amount of revenue recognized from wire transfer and money order fees. Total Operating Leases, Future Minimum Payments Due Year 5 Debt Instrument, Redemption, Period Five [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Address, State or Province Entity Address, State or Province Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Changes in Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] 2022 Operating Leases, Future Minimum Payments Due, Next Twelve Months Intangible asset, useful life Finite-Lived Intangible Asset, Useful Life Basic and Diluted Net Loss per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Entity Shell Company Entity Shell Company Local Phone Number Local Phone Number Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total assets Assets Plan Name [Domain] Plan Name [Domain] Common shares, authorized (in shares) Common Stock, Shares Authorized Number of equal installments for options vesting Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments Number of equal installments for which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition. Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical [Domain] Geographical [Domain] Repayments of term loan facility Repayments of Secured Debt Product and Service [Domain] Product and Service [Domain] Notes Receivable, Net of Allowance for Credit Loss Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Total long-term liabilities Liabilities, Noncurrent Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Revolving Credit Facility Revolving Credit Facility [Member] Intermex Guatemala Intermex Wire Transfers de Guatemala, S.A. [Member] Entity wholly owned or controlled by another entity. Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Entity Tax Identification Number Entity Tax Identification Number Term Loan Facility Term Loan Facility [Member] Term Loan Facility Geographical [Axis] Geographical [Axis] Accrued and other liabilities Total accrued and other liabilities Accrued Liabilities and Other Liabilities Revolving line origination fees Debt Instrument, Fee Amount Basic (in shares) Weighted-average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in dollars per share) Earnings per common share – diluted (in dollars per share) Earnings Per Share, Diluted Fixed charge coverage ratio Coverage Ratio Refers to the ratio of cash to debt coverage ratio. Wire transfers and money orders payable, net Total wire transfers and money orders payable, net Wire Transfers and Money Orders Payable Current Carrying value as of the balance sheet date of liabilities incurred and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Cash paid for income taxes Income Taxes Paid, Net Non-deductible expenses Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Foreign tax rates different from U.S. statutory rate Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Amortization Expense Related to Intangible Assets Finite-lived Intangible Assets Amortization Expense [Table Text Block] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Intangible assets, net Other intangible assets, beginning balance Other intangible assets, ending balance Intangible Assets, Net (Excluding Goodwill) Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Treasury stock, at cost; 70,440 shares as of September 30, 2021 (none as of December 31, 2020) Treasury Stock, Value Deferred tax liability, net Deferred Income Tax Liabilities, Net Weighted-Average Remaining Contractual Term (Years) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Term loan facility Loans Payable [Member] the “2020 Plan” 2020 Omnibus Equity Compensation Plan [Member] 2020 Omnibus Equity Compensation Plan Reconciliation of Tax Provision (Benefit) Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Accounts payable Accounts Payable, Current Impairment of assets Impairment, Long-Lived Asset, Held-for-Use Depreciation and amortization Depreciation, Depletion and Amortization 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] 2021 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Common shares, outstanding (in shares) Common Stock, Shares, Outstanding 2021 Operating Leases, Future Minimum Payments, Remainder of Fiscal Year Revenues: Revenues [Abstract] Restricted stock awards (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Movement in Deferred Revenue [Roll Forward] Movement in Deferred Revenue [Roll Forward] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Provision Accounts and Financing Receivable, Credit Loss Expense (Reversal) Accounts and Financing Receivable, Credit Loss Expense (Reversal) Other selling, general and administrative expenses Other Selling, General and Administrative Expense Number of territories in which entity operates Number of Territories in which Entity Operates The number of territories the entity operates in as of the balance sheet date. Property and equipment, net Property, Plant and Equipment, Net PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Prepaid expenses and current assets - other Other Prepaid Expense, Current Total operating expenses Operating Expenses SHARE-BASED COMPENSATION Shareholders' Equity and Share-based Payments [Text Block] Employees Share-based Payment Arrangement, Employee [Member] Schedule of Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Acquisition of treasury stock, at cost (in shares) Treasury stock repurchased (in shares) Treasury Stock, Shares, Acquired Debt Instrument [Line Items] Debt Instrument [Line Items] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Decrease in weighted average shares outstanding (in shares) Stock Repurchase Program, Decrease in Weighted Average Shares Outstanding Stock Repurchase Program, Decrease in Weighted Average Shares Outstanding ACCRUED AND OTHER LIABILITIES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts receivable Accounts Receivable, Allowance for Credit Loss Noncontrolling Interest [Table] Noncontrolling Interest [Table] Document Quarterly Report Document Quarterly Report Future Minimum Rental Payments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Outstanding, beginning balance (in dollars per share) Outstanding, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Issuance of common stock: Shares Granted or Issued, Share-based Payment Arrangement [Abstract] Debt, net Long-term debt, noncurrent Long-term Debt, Excluding Current Maturities Share-based compensation expense Share-based Payment Arrangement, Expense Assets pending settlement Settlement Assets, Current Weighted average remaining contractual term, exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Accounts payable and accrued and other liabilities Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Earnings per common share: Earnings Per Share, Basic and Diluted [Abstract] Weighted-Average Grant Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Four Finite-Lived Intangible Asset, Expected Amortization, after Year Four Document Fiscal Period Focus Document Fiscal Period Focus Canada International Transfers Corp Canada International Transfers Corp [Member] Entity wholly owned or controlled by another entity. Salaries and benefits Labor and Related Expense Accounts receivable Accounts Receivable, before Allowance for Credit Loss, Current Debt origination costs amortization Amortization of Debt Issuance Costs Payables and Accruals [Abstract] Payables and Accruals [Abstract] Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Cash, beginning of period Cash, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Current assets: Assets, Current [Abstract] Year 1 Debt Instrument, Redemption, Period One [Member] Finite-Lived Intangible Assets, Net [Abstract] Finite-Lived Intangible Assets, Net [Abstract] Entity Central Index Key Entity Central Index Key LIBOR London Interbank Offered Rate (LIBOR) [Member] Security Exchange Name Security Exchange Name PSU Activity Schedule of Nonvested Performance-based Units Activity [Table Text Block] Accrued and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Exercise of stock options (in shares) Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Diluted (in shares) Weighted-average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Discounts and promotions Discounts and Promotions Amount of discounts and promotions offered to the customers. INCOME TAXES Income Tax Disclosure [Text Block] Award service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Interest rate Debt Instrument, Basis Spread on Variable Rate EQUITY Stockholders' Equity Note Disclosure [Text Block] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Credit Facility [Axis] Credit Facility [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Allowance for credit losses Financing Receivable, Allowance for Credit Loss, Noncurrent Prepaid Expenses and Other Current Assets Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Vested (in dollars 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 BUSINESS AND ACCOUNTING POLICIES Business Description and Accounting Policies [Text Block] Total current liabilities Liabilities, Current Payments for stock-based awards Payment, Tax Withholding, Share-based Payment Arrangement Accrued legal fees Accrued Legal Fees, Current Carrying value as of the balance sheet date of obligations incurred through that date and payable for legal services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Revenues Revenues Revenue from Contract with Customer, Including Assessed Tax Ownership [Domain] Ownership [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Total Financing Receivable, before Allowance for Credit Loss Money orders payable Money Orders Payable Current Money Orders Payable Current Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Title of 12(b) Security Title of 12(b) Security Statement [Table] Statement [Table] Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Statistical Measurement [Axis] Statistical Measurement [Axis] Income tax expense at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Cover page. Cover [Abstract] Fully vested shares (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Notes receivable Financing Receivable, Allowance for Credit Loss Net amortizable intangible assets Finite-Lived Intangible Assets, Net Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Agent Relationships Agent Relationships [Member] Agent relationship that exists between an entity and its agents. Intermex Wire Transfer Corp Intermex Wire Transfer Corp [Member] Entity wholly owned or controlled by another entity. Accrued taxes Accrued Income Taxes, Current Credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount 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] Phantom Share Units (PSUs) Phantom Share Units (PSUs) [Member] Developed Technology Rights Developed Technology Rights [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value Rent expense Operating Leases, Rent Expense Accounts Receivable, Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Number of performance obligation Number of Performance Obligation Number of Performance Obligation Deferred income tax provision, net Deferred Income Tax Expense (Benefit)