Acquisitions [Abstract] Acquisitions [Abstract] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] (5) DEBT OBLIGATIONS [Abstract] (5) DEBT OBLIGATIONS [Abstract] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Summary of Significant Accounting Policies and Practices [Abstract] Summary Of Significant Accounting Policies And Practices. Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Business Combination Disclosure [Text Block] Business Combination Disclosure [Text Block] Earnings Per Share [Abstract] Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of Weighted Average Number of Shares [Table Text Block] Guarantees [Abstract] Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Debt Instrument [Axis] Debt Instrument, Name [Domain] Line of Credit [Member] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Cash and Cash Equivalents [Member] Trade Accounts Receivable [Member] Guarantor Obligations by Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Performance Guarantee [Member] Performance Guarantee [Member] Indemnification Agreement [Member] Indemnification Agreement [Member] Guarantee Type, Other [Member] Guarantee Type, Other [Member] Guarantor Obligations [Line Items] Guarantor Obligations [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 Goodwill and Intangible Assets Disclosure [Abstract] GOODWILL AND ACQUIRED INTANGIBLE ASSETS, NET Goodwill and Intangible Assets Disclosure [Text Block] (2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES [Abstract] (2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES [Abstract] Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES Significant Accounting Policies [Text Block] Statement of Other 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 Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Gain on investment securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Reclassification adjustment related to sale of investment securities Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Unrealized gain on interest rate swaps Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Comprehensive (loss) 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 (loss) income attributable to Euronet Worldwide, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Organization, Consolidation and Presentation of Financial Statements [Abstract] GENERAL Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Fair Value Measurements [Abstract] Fair Value Measurements. Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Carrying (Reported) Amount, Fair Value Disclosure [Member] Carrying (Reported) Amount, Fair Value Disclosure [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Convertible Debt, Fair Value Disclosures Convertible Debt, Fair Value Disclosures Foreign Currency Contracts, Liability, Fair Value Disclosure Foreign Currency Contracts, Liability, Fair Value Disclosure Derivative Financial Instruments, Liabilities, Fair Value Disclosure Derivative Financial Instruments, Liabilities, Fair Value Disclosure INCOME TAXES [Abstract] (10) INCOME TAXES [Abstract] 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 Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Contingencies [Abstract] Contingencies. 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] Percent of European business impacted by computer security breach Percent of European business impacted by computer security breach Percent of European business impacted by computer security breach Computer security breach expenses Computer security breach expenses Computer security breach expenses Insurance Recoveries Insurance Recoveries Percent of revenue from money transfers between D.R. and U.S. Percent of revenue from money transfers between D.R. and U.S. Percent of revenue from money transfers between Dominican Republic and U.S. Derivative Instruments and Hedges, Assets [Abstract] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Instruments and Hedging Activities Disclosure [Text Block] 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] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Range [Axis] Range [Domain] Minimum [Member] Maximum [Member] Reference rate [Axis] Reference rate [Axis] Reference Rate [Domain] Reference Rate [Domain] LIBOR [Member] LIBOR [Member] Base rate [Member] Base rate [Member] Sublimit [Axis] Sublimit [Axis] Sublimit [Domain] Sublimit [Domain] Letter of Credit [Member] Swingline loans [Member] Swingline loans [Member] Debt Instrument [Axis] Debt Instrument, Name [Domain] Convertible Debt [Member] Credit facility [Member] Credit facility [Member] Other Debt [Member] Other Debt [Member] Capital Lease Obligations [Member] Loans Payable [Member] Total debt [Member] Total debt [Member] Line of credit - India [Member] Line of credit - India [Member] Previous line of credit facility [Member] Previous line of credit facility [Member] Previous term loan [Member] Previous term loan [Member] Convertible Debt Issue [Axis] Convertible Debt Issue [Axis] Convertible Debt Issue [Domain] Convertible Debt Issue [Domain] 3.5% Issue [Member] 3.5% Issue [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Credit facility, maximum borrowing capacity Credit facility, maximum borrowing capacity Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Credit facility optional maximum expansion amount Credit facility optional maximum expansion amount Credit facility optional maximum expansion amount Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Interest Rate Terms Debt Instrument, Interest Rate Terms Line of Credit Facility, Interest Rate at Period End Line of Credit Facility, Interest Rate at Period End Debt Instrument, Interest Rate at Period End Debt Instrument, Interest Rate at Period End Deferred Finance Costs, Noncurrent, Gross Deferred Finance Costs, Noncurrent, Gross Total Debt [Roll Forward] Total Debt [Roll Forward] Line of Credit Facility, Amount Outstanding Line of Credit Facility, Amount Outstanding Short-term Debt Short-term Debt Capital Lease Obligations Capital Lease Obligations Convertible Debt Convertible Debt Loans Payable to Bank Loans Payable to Bank Debt and Capital Lease Obligations Debt and Capital Lease Obligations Debt instrument, Net borrowings (repayments) Debt instrument, Net borrowings (repayments) Debt instrument, Net borrowings (repayments) Amortization of Debt Discount (Premium) Amortization of Debt Discount (Premium) Capital Leases, Income Statement, Interest Expense Capital Leases, Income Statement, Interest Expense Debt Instrument, Increase (Decrease), Other, Net Debt Instrument, Increase (Decrease), Other, Net Other debt, current Other debt, current Other debt, current Capital Lease Obligations, Current Capital Lease Obligations, Current Convertible Debt, Current Convertible Debt, Current Loans Payable to Bank, Current Loans Payable to Bank, Current Debt, Current Debt, Current Long-term Line of Credit, Noncurrent Long-term Line of Credit, Noncurrent Capital Lease Obligations, Noncurrent Capital Lease Obligations, Noncurrent Convertible Debt, Noncurrent Convertible Debt, Noncurrent Loans Payable to Bank, Noncurrent Loans Payable to Bank, Noncurrent Debt, noncurrent Debt, noncurrent Debt, noncurrent Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Loss on early retirement of debt Gains (Losses) on Extinguishment of Debt Consolidated Total Leverage Ratio Consolidated Total Leverage Ratio Consolidated Total Leverage Ratio Consolidated Senior Secured Leverage Ratio Consolidated Senior Secured Leverage Ratio Consolidated Senior Secured Leverage Ratio Consolidated Fixed Charge Coverage Ratio Consolidated Fixed Charge Coverage Ratio Consolidated Fixed Charge Coverage Ratio Extinguishment of Debt, Amount Extinguishment of Debt, Amount Debt Instrument, Face Amount Debt Instrument, Face Amount Debt Instrument, Unamortized Discount Debt Instrument, Unamortized Discount Debt Instrument, Convertible, Remaining Discount Amortization Period Debt Instrument, Convertible, Interest Expense Debt Instrument, Convertible, Interest Expense Debt Instrument, Convertible, Effective Interest Rate Debt Instrument, Convertible, Effective Interest Rate 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 Income from unconsolidated affiliates Income (Loss) from Equity Method Investments Legal settlement Gain (Loss) Related to Litigation Settlement Other (losses) gains, net Other Nonoperating Income (Expense) Foreign currency exchange gain (loss), net Foreign Currency Transaction Gain (Loss), before Tax Other (expense) income, 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 Basic weighted average shares outstanding Weighted Average Number of Shares Outstanding, Basic Earnings per share attributable to Euronet Worldwide, Inc. stockholders - diluted Earnings Per Share, Diluted Diluted weighted average shares outstanding Weighted Average Number of Shares Outstanding, Diluted DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES [Abstract] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES [Abstract] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Foreign Exchange Contract [Member] Foreign Exchange Contract [Member] Foreign Exchange Forward [Member] Foreign Exchange Forward [Member] Embedded Derivative Financial Instruments [Member] Embedded Derivative Financial Instruments [Member] Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Income Statement Location [Axis] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Income Statement Location [Domain] Foreign Currency Gain (Loss) [Member] Foreign Currency Gain (Loss) [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Derivative, Average Remaining Maturity Derivative, Average Remaining Maturity Foreign currency forward contract term Foreign currency forward contract term Foreign currency forward contract term, in days Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Gross Liability Derivative Asset, Fair Value, Gross Liability Derivative Asset, Fair Value, Net Derivative Asset, Fair Value, Net Derivative Liability, Fair Value, Net Derivative Liability, Fair Value, Net Derivative, Fair Value, Net Derivative, Fair Value, Net Gain (Loss) on Derivative Instruments, Net, Pretax Gain (Loss) on Derivative Instruments, Net, Pretax Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] EARNINGS PER SHARE Earnings Per Share [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information, by Segment [Axis] Business Segments [Axis] Reporting Segment [Domain] Segment [Domain] Eft Processing Segment [Member] EFT Processing Segment. Epay Segment [Member] Epay 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) Income Tax Expense (Benefit) [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case Type [Domain] Legal Matters and Contingencies [Text Block] Legal Matters and Contingencies [Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [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] Minimum [Member] Maximum [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships [Member] Trademarks and trade names [Member] Trademarks and trade names [Member] Noncompete Agreements [Member] Software [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Euronet Middle East W.L.L. [Member] Euronet Middle East W.L.L. [Member] Euronet Middle East W.L.L. [Member] Acquisition [Member] Series of Individually Immaterial Business Acquisitions [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Business Acquisition, Percentage of Voting Interests Acquired Business Acquisition, Percentage of Voting Interests Acquired Business Acquisition, Cost of Acquired Entity, Cash Paid Business Acquisition, Cost of Acquired Entity, Cash Paid Escrow Deposit Escrow Deposit Treasury stock shares acquired in settlement Treasury stock shares acquired in settlement Treasury stock shares acquired in settlement Treasury shares, value, acquired in settlement Treasury shares, value, acquired in settlement treasury shares, value, acquired in settlement Business Acquisition, Purchase Price Allocation, Current Assets Business Acquisition, Purchase Price Allocation, Current Assets Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Useful Life Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment Finite-Lived Intangible Assets, Useful Life Finite-Lived Intangible Asset, Useful Life Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Business Acquisition, Purchase Price Allocation, Goodwill Amount Business Acquisition, Purchase Price Allocation, Goodwill Amount Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets Business Acquisition, Purchase Price Allocation, Assets Acquired Business Acquisition, Purchase Price Allocation, Assets Acquired Business Acquisition, Purchase Price Allocation, Current Liabilities Business Acquisition, Purchase Price Allocation, Current Liabilities Business Acquisition, Purchase Price Allocation, Deferred Income Taxes, Asset (Liability), Net Business Acquisition, Purchase Price Allocation, Deferred Taxes Asset (Liability), Net, Noncurrent Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Gain on step acquisition Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Segment Reporting [Abstract] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Income taxes [Table] Income taxes [Table] Income taxes [Table] Legal Entity [Axis] Entity [Domain] Income taxes [Line Items] Income taxes [Line Items] Effective Income Tax Rate, Continuing Operations Effective Income Tax Rate, Continuing Operations adjusted effective income tax rate adjusted effective income tax rate adjusted effective income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 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 $17,210 at June 30, 2012 and $14,787 at December 31, 2011 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 $190,190 at June 30, 2012 and $175,875 at December 31, 2011 Property, Plant and Equipment, Net Goodwill Goodwill Acquired intangible assets, net of accumulated amortization of $128,549 at June 30, 2012 and $129,119 at December 31, 2011 Finite-Lived Intangible Assets, Net Other assets, net of accumulated amortization of $21,807 at June 30, 2012 and $19,529 at December 31, 2011 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 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 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: Stockholders' Equity Attributable to Parent [Abstract] 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; 52,413,515 issued at June 30, 2012 and 51,982,227 issued at December 31, 2011 Common Stock, Value, Issued Additional paid-in-capital Additional Paid in Capital, Common Stock Treasury stock, at cost, 1,590,477 shares at June 30, 2012 and 1,543,441 shares at December 31, 2011 Treasury Stock, Value Accumulated deficit Retained Earnings (Accumulated Deficit) Restricted reserve Restricted reserve Restricted reserve. Accumulated other comprehensive income 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 Goodwill and Acquired Intangible Assets Net [Abstract] Goodwill And Acquired Intangible Assets, Net. Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Expected intangible amortization current year Expected intangible amortization current year The amount of amortization expense expected to be recognized during the current fiscal year. Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Future Amortization Expense, Year Two Finite-Lived Intangible Assets, Amortization Expense, Year Two Future Amortization Expense, Year Three Finite-Lived Intangible Assets, Amortization Expense, Year Three Future Amortization Expense, Year Four Finite-Lived Intangible Assets, Amortization Expense, Year Four Future Amortization Expense, Year Five Finite-Lived Intangible Assets, Amortization Expense, Year Five Goodwill, Impairment Loss Goodwill, Impairment Loss Goodwill and Finite-lived Intangible Assets Rollforward [Roll Forward] Goodwill and Finite-lived Intangible Assets Rollforward [Roll Forward] Finite-Lived Intangible Assets, Net Total intangible assets, net, including goodwill Total intangible assets, net, including goodwill Total intangible assets, net, including goodwill Finite-lived intangible assets acquired during period Finite-lived intangible assets acquired during period Finite-lived intangible assets acquired during period Goodwill, Acquired During Period Goodwill, Acquired During Period Total intangible assets acquired during period Total intangible assets acquired during period Total intangible assets acquired during period Finite-Lived Intangible Assets, Amortization Expense Amortization of Intangible Assets Total intangible assets amortization expense Total intangible assets amortization expense Total intangible assets amortization expense 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, Other Changes Goodwill, Other Changes Total intangible assets, other changes Total intangible assets, other changes Total intangible assets, including goodwill, other changes (primarily changes in foreign currency exchange rates) GUARANTEES Schedule of Guarantor Obligations [Table Text Block] Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Intangible Assets and Goodwill [Table Text Block] Debt Disclosure [Abstract] DEBT OBLIGATIONS Debt Disclosure [Text Block] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] 1.625% Issue [Member] 1.625% Issue [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Debt Instrument, Convertible, Number of Equity Instruments Debt Instrument, Convertible, Number of Equity Instruments Weighted Average Number Diluted Shares Outstanding Adjustment Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted average shares outstanding 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 (gain) loss, net Foreign Currency Transaction Gain (Loss), Unrealized Gain on step acquisition Deferred income taxes Deferred Income Tax Expense (Benefit) Income from unconsolidated affiliates Accretion of convertible debentures discount and amortization of debt issuance costs Accretion of convertible debentures discount and amortization of debt issuance costs Accretion of convertible debentures discount and amortization of debt issuance costs. 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 Repurchase of shares Payments for Repurchase of Common Stock 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 Debt issuance costs Payments of Debt Issuance Costs Payment of acquisition contingent consideration Payment of acquisition contingent consideration Payment of acquisition contingent consideration - financing portion Cash dividends paid to noncontrolling interests stockholders Payments of Ordinary Dividends, Noncontrolling Interest Other, net Proceeds from (Payments for) Other Financing Activities Net cash 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 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 Money Transfer Settlement Obligations [Table] Money Transfer Settlement Obligations [Table] Money Transfer Settlement Obligations [Table] Money Transfer Settlement Obligations [Line Items] Money Transfer Settlement Obligations [Line Items] Settlement Liabilities, Current Settlement Liabilities, Current Description of New Accounting Pronouncements Not yet Adopted [Text Block] Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Allowances for doubtful trade accounts receivables Allowance for Doubtful Accounts Receivable, Current Accumulated depreciation on property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated amortization on acquired intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization on other assets Accumulated amortization on other assets Accumulated amortization on other assets. Preferred Stock, par value 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 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 at cost, shares Treasury Stock, Shares Document Information [Table] Document Information, Document [Axis] Document Information, Document [Axis] Document [Domain] Document [Domain] Document Information [Line Items] Document Information [Line Items] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document and Entity Information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus 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