Segment Information [Abstract] Segment Information. Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Intangible Assets and Goodwill [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [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] Foreign Currency Contract, Asset, Fair Value Disclosure Foreign Currency Contract, Asset, Fair Value Disclosure Foreign Currency Contracts, Liability, Fair Value Disclosure Foreign Currency Contracts, Liability, Fair Value Disclosure Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity [Table] Rights Agreement [Table] Rights Agreement [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Stockholders' Equity [Line Items] Rights Agreement [Line Items] [Line Items] for Rights Agreement [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Acquisitions [Abstract] Acquisitions [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Business Acquisition [Line Items] Business Acquisition [Line Items] Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Schedule of Finite and Indefinite Lived Intangible Assets [Table] Schedule of Finite and Indefinite Lived Intangible Assets [Table] Schedule of Finite and Indefinite Lived Intangible Assets [Table] [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Epay Segment [Member] Epay Segment [Member] Epay Segment. Schedule of Finite and Indefinite Lived Intangible Assets [Line Items] Schedule of Finite and Indefinite Lived Intangible Assets [Line Items] [Line Items] for Schedule of Finite and Indefinite Lived Intangible Assets [Table] [Table] Goodwill and Finite-lived Intangible Assets Rollforward [Roll Forward] Goodwill and Finite-lived Intangible Assets Rollforward [Roll Forward] Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Finite-lived intangible assets acquired during period Finite-lived Intangible Assets Acquired Finite-Lived Intangible Assets, Amortization Expense Amortization of Intangible Assets Finite-lived intangible assets, other changes Finite-lived intangible assets, other changes Finite-lived intangible assets, other changes (primarily changes in foreign currency exchange rates) Goodwill Goodwill Goodwill, Acquired During Period Goodwill, Acquired During Period Goodwill, Other Changes Goodwill, Other Changes Intangible Assets, Net (Including Goodwill) Intangible Assets, Net (Including Goodwill) Total intangible assets acquired during period Total intangible assets acquired during period Total intangible assets acquired during period Total intangible assets amortization expense Total intangible assets amortization expense Total intangible assets amortization expense Total intangible assets, other changes Total intangible assets, other changes Total intangible assets, including goodwill, other changes (primarily changes in foreign currency exchange rates) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Finite-Lived Intangible Assets, Amortization Expense, Year Two Finite-Lived Intangible Assets, Amortization Expense, Year Two Finite-Lived Intangible Assets, Amortization Expense, Year Three Finite-Lived Intangible Assets, Amortization Expense, Year Three Finite-Lived Intangible Assets, Amortization Expense, Year Four Finite-Lived Intangible Assets, Amortization Expense, Year Four Finite-Lived Intangible Assets, Amortization Expense, Year Five Finite-Lived Intangible Assets, Amortization Expense, Year Five Goodwill, Impairment Loss Goodwill, Impairment Loss Statement of Comprehensive Income [Abstract] Statement [Table] Statement [Table] Statement, Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement [Line Items] Statement [Line Items] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive loss (income) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to Euronet Worldwide, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Earnings Per Share [Abstract] Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of Weighted Average Number of Shares [Table Text Block] Income Statement [Abstract] Revenues Revenue, Net Operating expenses: Costs and Expenses [Abstract] Direct operating costs Cost of Goods and Services Sold Salaries and benefits Labor and Related Expense Selling, general and administrative Selling, General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Total operating expenses Costs and Expenses Operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense (Loss) income from unconsolidated affiliates Income (Loss) from Equity Method Investments Foreign currency exchange (loss) gain, net Foreign Currency Transaction Gain (Loss), before Tax Other losses Other Nonoperating Income (Expense) Other expense, net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Less: Net loss (income) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to Euronet Worldwide, Inc. Net Income (Loss) Attributable to Parent Earnings per share attributable to Euronet Worldwide, Inc. stockholders - basic Earnings Per Share, Basic Earnings per share attributable to Euronet Worldwide, Inc. stockholders - diluted Earnings Per Share, Diluted Weighted average number of shares outstanding - basic Weighted Average Number of Shares Outstanding, Basic Weighted average number of shares outstanding - diluted Weighted Average Number of Shares Outstanding, Diluted Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash and Cash Equivalents, Current Inventory - PINs and other Inventory, Net Trade accounts receivable, net of allowances for doubtful accounts of $22,389 at June 30, 2014 and $22,079 at December 31, 2013 Accounts Receivable, Net, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net of accumulated depreciation of $249,140 at June 30, 2014 and $231,327 at December 31, 2013 Property, Plant and Equipment, Net Acquired intangible assets, net of accumulated amortization of $143,976 at June 30, 2014 and $132,927 at December 31, 2013 Other assets, net of accumulated amortization of $27,302 at June 30, 2014 and $25,363 at December 31, 2013 Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Trade accounts payable Accounts Payable, Trade, Current Accrued expenses and other current liabilities Accrued Expenses And Other Current Liabilities Accrued expenses and other current liabilities. Current portion of capital lease obligations Capital Lease Obligations, Current Short-term debt obligations and current maturities of long-term debt obligations Long-term Debt, Current Maturities Income taxes payable Accrued Income Taxes, Current Deferred revenue Deferred Revenue, Current Total current liabilities Liabilities, Current Debt obligations, net of current portion Long-term Debt, Excluding Current Maturities Capital lease obligations, net of current portion Capital Lease Obligations, Noncurrent Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Euronet Worldwide, Inc. stockholders' equity: Preferred Stock, $0.02 par value. 10,000,000 shares authorized; none issued Preferred Stock, Value, Issued Common Stock, $0.02 par value. 90,000,000 shares authorized; 56,097,945 issued at June 30, 2014 and 54,276,761 issued at December 31, 2013 Common Stock, Value, Issued Additional paid-in-capital Additional Paid in Capital, Common Stock Treasury stock, at cost, 3,666,899 shares at June 30, 2014 and 3,650,519 shares at December 31, 2013 Treasury Stock, Value Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total Euronet Worldwide, Inc. stockholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Balance Sheet Parentheticals [Abstract] Balance Sheet Parentheticals [Abstract] Allowance for doubtful accounts receivable Allowance for Doubtful Accounts Receivable, Current Accumulated depreciation of property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated amortization of intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization of other assets Accumulated amortization of other assets Accumulated amortization of other assets. Preferred Stock, par value per share Preferred Stock, Par or Stated Value Per Share Preferred Stock, shares authorized Preferred Stock, Shares Authorized Preferred Stock, shares issued Preferred Stock, Shares Issued Common Stock, par value per share Common Stock, Par or Stated Value Per Share Common Stock, shares authorized Common Stock, Shares Authorized Common Stock, shares issued Common Stock, Shares, Issued Treasury Stock, shares Treasury Stock, Shares DEBT OBLIGATIONS [Abstract] DEBT OBLIGATIONS [Abstract] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Credit Agreement Disclosure [Abstract] Credit Agreement Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Term Loan A [Member] Term Loan A [Member] Term Loan A [Member] Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Reference rate [Axis] Reference rate [Axis] Reference rate [Axis] Reference Rate [Domain] Reference Rate [Domain] Reference Rate [Domain] LIBOR [Member] LIBOR [Member] LIBOR [Member] Base Rate [Member] Base Rate [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Term Loan A Loans Payable to Bank Loan Payable to Bank - Pre Amended Credit Facility Loan Payable to Bank - Pre Amended Credit Facility Loan Payable to Bank Prior to the Amendment of a Credit Facility Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Revolving Credit Facility, Interest Rate at Period End Line of Credit Facility, Interest Rate at Period End Term Loan A, Weighted Average Interest Rate Long-term Debt, Weighted Average Interest Rate Debt Instrument, Basis Spread Reduction Debt Instrument, Basis Spread Reduction Reduction in the percentage points added to the reference rate to compute the variable rate on the debt instrument. Debt Issuance Cost Debt Issuance Cost Credit Facility Expiration Date - Amended Facility Credit Facility Expiration Date - Prior to Amendment Number 1 Date the credit facility terminates, in CCYY-MM-DD format. Credit Facility Expiration Date Credit Facility Expiration Date Date when the Credit Facility is scheduled to expire, in CCYY-MM-DD format. ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES [Abstract] ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES [Abstract] Accrued Expenses and Other Current Liabilities [Text Block] Other Liabilities Disclosure [Text Block] Accounting Policies [Abstract] Recently Issued and Adopted Accounting Pronouncements [Text Block] Significant Accounting Policies [Text Block] GOODWILL AND ACQUIRED INTANGIBLE ASSETS, NET Goodwill and Intangible Assets Disclosure [Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Derivative Financial Instruments - Additional Information [Abstract] Derivative Instruments and Hedging Activities (Information) [Abstract] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Business Operations [Axis] Business Operations [Axis] Division [Axis] Business Operations [Domain] Business Operations [Domain] [Domain] for Division [Axis] Ria Operations [Member] Ria Operations [Member] Ria Operations [Member] HiFX Operations [Member] HiFX Operations [Member] HiFX Operations [Member] [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign Exchange Contracts [Member] Foreign Exchange Contract [Member] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Foreign currency forward contract term Foreign currency forward contract term Foreign currency forward contract term, in days Derivative, Notional Amount Derivative, Notional Amount Loss on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Commitments Disclosure [Abstract] Commitments Disclosure [Abstract] Other Commitments [Table] Other Commitments [Table] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Guarantee Type, Other [Member] Guarantee Type, Other [Member] Performance Guarantee [Member] Performance Guarantee [Member] Indemnification Agreement [Member] Indemnification Agreement [Member] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Cash and Cash Equivalents [Member] Cash and Cash Equivalents [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Other Commitments [Line Items] Other Commitments [Line Items] Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Pledged Assets, Not Separately Reported, Other Pledged Assets, Not Separately Reported, Other Guarantor Obligations, Maximum Exposure, Undiscounted Guarantor Obligations, Maximum Exposure, Undiscounted Organization, Consolidation and Presentation of Financial Statements [Abstract] GENERAL Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information, by Segment [Axis] Segments [Axis] Reporting Segment [Domain] Segments [Domain] Eft Processing Segment [Member] EFT Processing Segment. Money Transfer Segment [Member] Money Transfer Segment. Unallocated Amount to Segment, Intersegment Eliminations and Other [Member] Unallocated Amount to Segment, Intersegment Eliminations and Other [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total operating expenses Operating income (expense) Property, Plant and Equipment, Net Assets Disclosure of Offsetting Assets and Liabilities [Abstract] Disclosure of Offsetting Assets and Liabilities [Abstract] Derivative Assets, Fair Value, Gross Assets Derivative Asset, Fair Value, Gross Asset Gross Amount of Eligible Offsetting Recognized Derivative Liabilities Derivative Asset, Fair Value, Gross Liability Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative Asset, Not Offset, Policy Election Deduction Derivative Asset, Not Offset, Policy Election Deduction Cash Collateral Received Derivative, Collateral, Obligation to Return Cash Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Liability, Fair Value, Gross Liability Derivative Liability, Fair Value, Gross Liability Gross Amount of Eligible Offsetting Recognized Derivative Assets Derivative Liability, Fair Value, Gross Asset Derivative Liability, Fair Value, Amount Not Offset Against Collateral Derivative Liability, Fair Value, Amount Not Offset Against Collateral Derivative Liability, Not Offset, Policy Election Deduction Derivative Liability, Not Offset, Policy Election Deduction Cash Collateral Paid Derivative, Collateral, Right to Reclaim Cash Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative Liability, Fair Value, Amount Offset Against Collateral Accrued expenses Accrued Liabilities, Current Accrued amounts due to mobile operators and other content providers Accrued amounts due to mobile operators and other content providers Accrued amounts due to mobile operators and other content providers Money transfer settlement obligations Settlement Liabilities, Current Derivative liabilities Derivative Liability, Current Deferred income taxes Deferred Tax Liabilities, Net, Current Accrued expenses and other current liabilities Summary of Significant Accounting Policies and Practices [Abstract] Summary Of Significant Accounting Policies And Practices. Recently Issued and Adopted Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Acquisitions Business Combination Disclosure [Text Block] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES [Abstract] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES [Abstract] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Foreign Currency Gain (Loss) [Member] Foreign Currency Gain (Loss) [Member] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Foreign Currency Derivative Instruments, Asset at Fair Value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Foreign Currency Derivative Instruments, Liability at Fair Value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value Loss Contingency, Information about Litigation Matters [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Document and Entity Information [Abstract] Document and Entity Information. Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding INCOME TAXES [Abstract] (10) INCOME TAXES [Abstract] Income taxes [Table] Income taxes [Table] Income taxes [Table] Income taxes [Line Items] Income taxes [Line Items] Effective Income Tax Rate Effective Income Tax Rate Reconciliation, Percent Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] Litigation and Contingencies Legal Matters and Contingencies [Text Block] Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted Average Number of Shares Outstanding, Diluted Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Trading Revenue [Member] Trading Revenue [Member] Derivative Instruments, Loss [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Foreign Currency Exchange Margin Trading Activity, Gain Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Derivative Instruments, Gain (Loss) [Table Text Block] INCOME TAXES Income Tax Disclosure [Text Block] DEBT OBLIGATIONS Debt Disclosure [Text Block] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Capital Lease Obligations [Member] Total debt [Member] Total debt [Member] Total Debt [Roll Forward] Total Debt [Roll Forward] Revolving Credit Facility Long-term Line of Credit Other Debt Short-term Debt Capital Lease Obligations Capital Lease Obligations Total Debt and Capital Lease Obligations Debt and Capital Lease Obligations Other Debt, Current Other debt, current Other debt, current Capital Lease Obligations, Current Term Loan A, Current Loans Payable to Bank, Current Total Debt and Capital Lease, Current Debt, Current Revolving Credit Facility, Noncurrent Long-term Line of Credit, Noncurrent Capital Lease Obligations, Noncurrent Term Loan A, Noncurrent Loans Payable to Bank, Noncurrent Total Debt and Capital Lease, Noncurrent Debt, noncurrent Debt, noncurrent Net borrowings (repayments) Debt instrument, Net borrowings (repayments) Debt instrument, Net borrowings (repayments) Capital Leases Interest Capital Leases, Income Statement, Interest Expense Foreign currency exchange (gain) loss Debt Instrument, Increase (Decrease), Other, Net DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block] Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block] Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block] Commitments Commitments Disclosure [Text Block] Statement of Cash Flows [Abstract] Net income 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] Depreciation and amortization Depreciation, Depletion and Amortization Share-based compensation Share-based Compensation Unrealized foreign exchange loss, net Foreign Currency Transaction Gain (Loss), Unrealized Deferred income taxes Deferred Income Tax Expense (Benefit) Loss (income) from unconsolidated affiliates Amortization of debt issuance costs Amortization of Financing Costs and Discounts Changes in working capital, net of amounts acquired: Increase (Decrease) in Operating Capital [Abstract] Income taxes payable, net Increase (Decrease) in Income Taxes Payable Restricted cash Increase (Decrease) in Restricted Cash for Operating Activities Inventory - PINs and other Increase (Decrease) in Inventories Trade accounts receivable Increase (Decrease) in Accounts Receivable Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Trade accounts payable Increase (Decrease) in Accounts Payable, Trade Deferred revenue Increase (Decrease) in Deferred Revenue Accrued expenses and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Changes in noncurrent 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] Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Purchases of other long-term assets Payments to Acquire Other Productive Assets Other, net Payments for (Proceeds from) Other Investing Activities 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 shares Proceeds from Issuance or Sale of Equity Borrowings from revolving credit agreements Proceeds from Lines of Credit Repayments of revolving credit agreements Repayments of Lines of Credit Proceeds from long-term debt obligations Proceeds from Issuance of Long-term Debt Repayments of long-term debt obligations Repayments of Other Long-term Debt Repayments of capital lease obligations Repayments of Long-term Capital Lease Obligations Borrowings from short-term debt obligations, net Proceeds from Other Short-term Debt Purchase of subsidiary shares from noncontrolling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Interest paid during the period Interest Paid Income taxes paid during the period Income Taxes Paid Equity issued in connection with acquisitions Stock Issued During Period, Value, Acquisitions Contingent consideration in connection with acquisition Non-cash contingent consideration Non-cash contingent consideration Currency [Axis] Currency [Axis] Currency [Domain] All Currencies [Domain] United Kingdom, Pounds United Kingdom, Pounds 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] Software Development [Member] Software Development [Member] Customer-Related Intangible Assets [Member] Customer-Related Intangible Assets [Member] Trade Names [Member] Trade Names [Member] Noncompete Agreements [Member] Noncompete Agreements [Member] HiFX and HiFM [Member] HiFX and HiFM [Member] HiFX and HiFM [Member] Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Business Combination, Consideration Transferred, Amount Placed In Escrow Business Combination, Consideration Transferred, Amount Placed In Escrow Amount of Purchase Consideration Placed in Escrow. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Derivative Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Derivative Assets Fair Value of Derivative Assets Acquired as Part of a Business Combination. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Derivative Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Derivative Liabilities Fair Value of Derivative Liabilities Acquired as Part of a Business Combination. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Settlement Obligations and Customer Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Settlement Obligations and Customer Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Settlement Obligations and Customer Deposit Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life