Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Earnings Retained Earnings [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Non-Controlling Interest Noncontrolling Interest [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-09 Accounting Standards Update 2016-09 [Member] Accounting Standards Update 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. Statement [Line Items] Statement [Line Items] Changes in Stockholders’ Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance (in shares) Common Stock, Shares, Outstanding Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Cumulative adjustment from implementation of ASU 2016-09 Cumulative Effect of New Accounting Principle in Period of Adoption Share-based compensation recognized Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Repurchase of common stock (in shares) Stock Repurchased During Period, Shares Repurchase of common stock Stock Repurchased During Period, Value Restricted stock units delivered, net of cashless (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Restricted stock units delivered, net of cashless Stock Issued During Period Value Restricted Stock Award Net Of Cashless Exercise Stock issued during period value restricted stock award net of cashless exercise. Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Cash dividends declared on common stock Dividends, Common Stock, Cash Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Ending balance (in shares) Ending balance 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] Recurring Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 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] Financial liability Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Interest rate swap Interest Rate Derivative Liabilities, at Fair Value 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 Accounts receivable, net Accounts Receivable, Net, Current Prepaid expenses and other assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Investment in equity investee Equity Method Investments Property and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Other intangible assets, net Finite-Lived Intangible Assets, Net Deferred tax asset Deferred Income Tax Assets, Net Other long-term assets Other Assets, Noncurrent Total assets Assets Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Current Liabilities Liabilities, Current [Abstract] Accrued liabilities Accrued Liabilities, Current Accounts payable Accounts Payable, Current Unearned income Deferred Revenue, Current Income tax payable Accrued Income Taxes, Current Current portion of long-term debt Long-term Debt, Current Maturities Short-term borrowings Short-term Debt Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Deferred tax liability Deferred Income Tax Liabilities, Net Unearned income - long term Deferred Revenue, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 12) Commitments and Contingencies Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, par value $0.01; 2,000,000 shares authorized; none issued Preferred Stock, Value, Issued Common stock, par value $0.01; 206,000,000 shares authorized; 72,390,103 shares issued and outstanding at September 30, 2017 (December 31, 2016 - 72,635,032) Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Total EVERTEC, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Non-controlling interest Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Segment Reporting [Abstract] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Other Corporate Reconciling Items And Eliminations [Member] Corporate Reconciling Items And Eliminations [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Merchant Acquiring, net Merchant Acquiring Net [Member] Merchant Acquiring Net [Member] Payment Processing Payment Processing [Member] Payment Processing [Member] Business Solutions Business Solutions [Member] Business Solutions [Member] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Segment income from operations Segment Reporting Information, Operating Income (Loss) [Abstract] Income from operations Operating Income (Loss) Interest expense, net Interest Income (Expense), Net Earnings (losses) of equity method investment Income (Loss) from Equity Method Investments Other income Other Nonoperating Income (Expense) Income tax expense Income Tax Expense (Benefit) Net income Fair Value Measurement for Liability at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Carrying Value and Estimated Fair Values for Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Income Tax Disclosure [Abstract] Computed income tax at statutory rates Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Benefit of net tax-exempt interest income Income Tax Reconciliation Tax Exempt Interest Income Income Tax Reconciliation Tax Exempt Interest Income Differences in tax rates due to multiple jurisdictions Income Tax Reconciliation Differences In Tax Rates Due To Multiple Jurisdictions The portion of the differences in tax rates due to multiple jurisdictions. Tax (benefit) expense due to a change in estimate Income Tax Reconciliation Change In Estimate Income Tax Reconciliation Change In Estimate Effect of income subject to tax-exemption grant Income Tax Reconciliation Effect Of Income Subject To Tax Exemption Grant Income tax reconciliation effect of income subject to tax-exemption grant. Unrecognized tax benefit Income Tax Reconciliation Unrecognized Tax Benefit Income tax reconciliation unrecognized tax benefit. Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Income tax expense Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Popular Popular Inc [Member] Popular Inc [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Total Revenue Sales Revenue, Net [Member] Transactions with Third Party Related Party Transaction [Line Items] Total revenues Revenue from Related Parties Cost of revenues Cost of Revenue Rent and other fees Rent And Other Fees Paid To Related Party Rent And Other Fees Paid To Related Party Interest earned from affiliate Interest Earned From And Charged By Affiliates [Abstract] Interest earned from and charged by affiliates. Interest income Interest Income, Related Party Total percentage of revenues from Popular Concentration Risk, Percentage Revenues generated from investee accounted for under equity method Equity Method Investment, Summarized Financial Information, Revenue Equity [Abstract] Summary of Changes in Balances of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Trademark Trademarks [Member] Software packages Computer Software, Intangible Asset [Member] Non-compete agreement Noncompete Agreements [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Useful life in years Finite-Lived Intangible Asset, Useful Life Gross amount Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net carrying amount Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Segregation of Income Tax Expense Based on Location of Operations Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Credit Facility Line of Credit [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Term A due on April 17, 2018 Term One Due On April Seventeen Two Thousand Eighteen [Member] Term One Due On April Seventeen Two Thousand Eighteen Member Term A due January 17, 2020 Senior Secured Credit Facility, Term A Loan, Due January 2020 [Member] Senior Secured Credit Facility, Term A Loan, Due January 2020 [Member] Senior Secured Term B Loan Term Two Due On April Seventeen Two Thousand Twenty [Member] Term Two Due On April Seventeen Two Thousand Twenty Member Secured credit facilities Long-term Line of Credit Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill Goodwill [Line Items] Changes in the Carrying Amount of Goodwill Goodwill [Roll Forward] Beginning balance Adjustment to goodwill from prior year acquisition Goodwill, Purchase Accounting Adjustments Goodwill attributable to acquisition Goodwill, Acquired During Period Foreign currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Ending balance Business Combinations [Abstract] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] PayGroup Paygroup [Member] Paygroup [Member] Customer Relationships Trademark or tradenames Trademarks and Trade Names [Member] Software packages Amount Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Weighted Average Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Cash and restricted cash deposits in affiliated bank Cash And Restricted Cash Deposits In Affiliated Bank Cash And Restricted Cash Deposits In Affiliated Bank Other due/to from affiliate Other Due From Affiliates [Abstract] Other due from affiliates. Accounts receivable Due from Affiliate, Current Prepaid expenses and other assets Prepaid Expense and Other Assets, Related Parties, Current Amount of assets related to consideration paid in advance to related parties for costs that provide economic benefits in future periods and amount of other assets. Other long-term assets Due from Related Parties, Noncurrent Accounts payable Accounts Payable, Related Parties, Current Unearned income Deferred Revenue Related Party Unearned income, related party. Property, Plant and Equipment [Abstract] Property and Equipment, net Property, Plant and Equipment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of operating business segments (in segment) Number of Operating Segments Revenues Revenues (Loss) income from operations Changes in Carrying Amount of Goodwill Allocated by Reportable Segments Schedule of Goodwill [Table Text Block] Carrying Amount of Other Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Estimated Amortization Expenses Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Debt Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] 1-month LIBOR London Interbank Offered Rate (LIBOR) [Member] Derivative [Line Items] Derivative [Line Items] Notional Amount Derivative, Notional Amount Fixed Rate Debt Instrument, Basis Spread on Variable Rate Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Preferred stock par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Preferred stock issued (in shares) Preferred Stock, Shares Issued Common stock par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock authorized (in shares) Common Stock, Shares Authorized Common stock issued (in shares) Common Stock, Shares, Issued Common stock outstanding (in shares) Information about Operations by Business Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Income from Operations to Consolidated Net Income Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Accounting Policies [Abstract] The Company Company Description [Policy Text Block] A description of the company. Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Buildings Building [Member] Data processing equipment Data Processing Equipment [Member] Data Processing Equipment [Member] Furniture and equipment Furniture and Fixtures [Member] Leasehold improvements Leasehold Improvements [Member] Property and Equipment, net Property, Plant and Equipment [Line Items] Useful life in years Property, Plant and Equipment, Useful Life Property and equipment, gross Property, Plant and Equipment, Gross Less - accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Depreciable assets, net Property Plant And Equipment Net Excluding Land Property plant and equipment net excluding land. Land Land and Land Improvements Property and equipment, net Depreciation and amortization expense related to property and equipment Depreciation, Depletion and Amortization Unremitted earnings from foreign subsidiaries Undistributed Earnings of Foreign Subsidiaries One-time repatriation of cash from a foreign subsidiary Foreign Earnings Repatriated Foreign income tax rate on distribution Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Foreign income tax on distribution Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Gross deferred tax asset Deferred Tax Assets, Gross Gross deferred tax liability Deferred Tax Liabilities, Gross Decrease in liability for uncertain tax position relating to net operating loss created by transaction costs Decrease in Liability for Uncertain Tax Position Decrease in liability for uncertain tax position Percentage of net operating loss deduction with regular tax Percentage of Net Operating Loss Deduction with Regular Tax Percentage of net operating loss deduction with regular tax. Percentage of net operating loss deduction with alternative minimum tax Percentage of Net Operating Loss Deduction with Alternative Minimum Tax Percentage of net operating loss deduction with alternative minimum tax. NOL carryforwards available to offset future taxable income Operating Loss Carryforwards Segment Information Segment Reporting Disclosure [Text Block] Earnings Per Share [Abstract] Net income attributable to EVERTEC, Inc. Net Income (Loss) Attributable to Parent Less: non-forfeitable dividends on restricted stock Restricted Stock Award, Forfeitures, Dividends Net income available to EVERTEC, Inc.’s common shareholders Net Income (Loss) Available to Common Stockholders, Basic Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Weighted average potential dilutive common shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average common shares outstanding - assuming dilution (in shares) Weighted Average Number of Shares Outstanding, Diluted Net income per common share - basic (in usd per share) Earnings Per Share, Basic Net income per common share - diluted (in usd per share) Earnings Per Share, Diluted Net Income Per Common Share Earnings Per Share [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] 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, Nonproduction Amortization of debt issue costs and accretion of discount Amortization of Debt Issuance Costs and Discounts Provision for doubtful accounts and sundry losses Provision For Doubtful Accounts And Sundry Losses Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). Also includes additional operating losses not otherwise itemized or categorized. Deferred tax benefit Deferred Income Tax Expense (Benefit) Share-based compensation Share-based Compensation Loss on impairment of software Capitalized Computer Software, Impairments Loss on disposition of property and equipment and other intangibles Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property (Earnings) losses of equity method investment Decrease (increase) in assets Increase (Decrease) in Operating Assets [Abstract] Accounts receivable, net Increase (Decrease) in Accounts and Other Receivables Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Other long-term assets Increase (Decrease) in Other Noncurrent Assets (Decrease) increase in liabilities Increase (Decrease) in Operating Liabilities [Abstract] Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Income tax payable Increase (Decrease) in Income Taxes Payable Unearned income Increase (Decrease) in Deferred Revenue Other long-term liabilities Increase (Decrease) in Other Noncurrent Liabilities Total adjustments Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities 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, Continuing Operations [Abstract] Net (increase) decrease in restricted cash Increase (Decrease) in Restricted Cash Additions to software Payments to Acquire Intangible Assets Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Property and equipment acquired Payments to Acquire Property, Plant, and Equipment Proceeds from sales of property and equipment Proceeds from Sale of Property, Plant, and Equipment 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, Continuing Operations [Abstract] Statutory withholding taxes paid on share-based compensation Payments Related to Tax Withholding for Share-based Compensation Net increase (decrease) in short-term borrowings Proceeds from (Repayments of) Short-term Debt Repayment of short-term borrowing for purchase of equipment and software Repayments of Short-term Debt Dividends paid Payments of Dividends Credit amendment fees Payments Of Credit Amendment Fees Payments of credit amendment fees. Repurchase of common stock Payments for Repurchase of Common Stock Repayment of long-term debt Repayments of Long-term Debt Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net (decrease) increase in cash Cash and Cash Equivalents, Period Increase (Decrease) Cash at beginning of the period Cash at end of the period Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Cash paid for income taxes Income Taxes Paid Supplemental disclosure of non-cash activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Foreign currency translation adjustments Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease) Payable due to vendor related to software acquired Noncash or Part Noncash Acquisition, Value of Assets Acquired Total Debt Schedule of Debt [Table Text Block] Summary of Interest Rate Swap Transaction Schedule of Interest Rate Derivatives [Table Text Block] Carrying Amount of Derivative Instruments on Company's Balance Sheet Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Current tax (benefit) provision Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Puerto Rico Current Territory Tax Expense Benefit The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted Puerto Rico tax law to the local taxable income or loss from continuing operations. United States Current Federal Tax Expense (Benefit) Foreign countries Current Foreign Tax Expense (Benefit) Total current tax (benefit) provision Current Income Tax Expense (Benefit) Deferred tax benefit Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Puerto Rico Deferred Territory Income Tax Expense Benefit The component of total income tax expense for the period comprised of the increase (decrease) in the entity's net Puerto Rico deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of applicable enacted tax laws of the country of domicile. United States Deferred Federal Income Tax Expense (Benefit) Foreign countries Deferred Foreign Income Tax Expense (Benefit) Total deferred tax benefit Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Business Acquisition [Line Items] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Accounts Receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Prepaid expenses and other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Long-term deferred tax asset Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Goodwill Other intangible assets Other long-term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Total assets acquired Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired Including Goodwill Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired Including Goodwill Accrued liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Liabilities Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Unearned income Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Long-term debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Long-term deferred tax liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Other long-term liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Summary of Stock Option Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Nonvested Restricted Shares and RSUs Activity Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Cash dividend declared per common share (in usd per share) Common Stock, Dividends, Per Share, Declared Shares outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Shares exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted-average exercise price, outstanding (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-average exercise price, exercisable (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Debt and Short-Term Borrowings Debt Disclosure [Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Units Restricted Stock Units (RSUs) [Member] Time Based Awards Time Based Awards [Member] Time Based Awards [Member] Awards with Performance Conditions Performance Shares [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2015 LTIP Fiscal 2015 Long-Term Incentive Plan [Member] Fiscal 2015 Long-Term Incentive Plan [Member] 2016 LTIP Fiscal 2016 Long-Term Incentive Plan [Member] Fiscal 2016 Long-Term Incentive Plan [Member] 2017 LTIP Fiscal 2017 Long-Term Incentive Plan [Member] Fiscal 2017 Long-Term Incentive Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Performance measurement period Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Measurement Period Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Measurement Period Requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Performance adjustment percent Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Adjustment Percent Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Adjustment Percent Share-based compensation expenses Allocated Share-based Compensation Expense Maximum unrecognized cost for stocks and RSU's Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Unrecognized compensation cost, weighted average period of recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Income Statement [Abstract] Revenues Revenues [Abstract] Merchant acquiring, net Merchant Acquiring Net Revenues from services that allow merchants to accept electronic methods of payment. Payment processing (from affiliates: $8,004, $7,913, $24,653 and $23,718) Payment Processing Revenues related to providing access to the ATH network and other card networks to financial institutions, including related services such as authorization, processing, management and recording of ATM and POS transactions, and ATM management and monitoring. Business solutions (from affiliates: $36,086, $35,109, $109,392 and $106,068) Business Solutions Revenues from a full suite of business process management solutions in various product areas, such as core banking processing, network hosting and management, IT professional services, business process outsourcing, item processing, cash processing, and fulfillment. Total revenues Operating costs and expenses Operating Costs and Expenses [Abstract] Cost of revenues, exclusive of depreciation and amortization shown below Cost Of Revenues Excluding Depreciation And Amortization The aggregate cost of goods produced and sold and services rendered during the reporting period, excluding depreciation and amortization. Selling, general and administrative expenses Selling, General and Administrative Expense Total operating costs and expenses Costs and Expenses Income from operations Non-operating income (expenses) Nonoperating Income (Expense) [Abstract] Interest income Interest Income, Deposits with Financial Institutions Interest expense Interest Expense Total non-operating expenses Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (benefit) expense Less: Net income attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to EVERTEC, Inc.’s common stockholders Other comprehensive income (loss), net of tax of $2, $(6), $21 and $439 Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Gain (loss) on cash flow hedge Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in usd per share) Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in usd per share) Cash dividends declared per share (in usd per share) Accounting Changes and Error Corrections [Abstract] Recent Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Schedule of Reconciliation of Numerator and Denominator of Income Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol 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 (in shares) Entity Common Stock, Shares Outstanding Income Tax Income Tax Disclosure [Text Block] Current tax (benefit) provision Income tax (benefit) expense Restricted Shares and RSUs Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Ending balance (in shares) Weighted-average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Forfeited (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Vested (in usd 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 Granted (in usd 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 Ending balance (in usd per share) Carrying Amounts and Fair Values of Financial Instruments [Table] Carrying Amounts and Fair Values of Financial Instruments [Table] Carrying Amounts and Fair Values of Financial Instruments [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] 2018 Term A Loan 2020 Term A Loan Carrying Amounts and Fair Values of Financial Instruments [Line Items] Carrying Amounts and Fair Values of Financial Instruments [Line Items] Carrying Amounts and Fair Values of Financial Instruments [Line Items] Senior secured term loan Long-term Debt, Fair Value Other long-term liabilities Derivative Liability Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Foreign Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Cash Flow Hedge Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Total Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Changes in Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] Other comprehensive loss before reclassifications Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Effective portion reclassified to Net Income Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Share-based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of Revenue Cost of Sales [Member] Impairment of goodwill Goodwill and Intangible Asset Impairment Amortization expense for intangible assets Amortization of Intangible Assets Impairment charge Accrued ongoing contractual fees Contractual Obligation Maintenance expense Cost of Services, Maintenance Costs Percentage of share capital acquired Business Acquisition, Percentage of Voting Interests Acquired Number of countries where the Company provides a broad range of merchant acquiring, payment processing and business process management services (in country) Number of Countries in which Entity Operates Equity Stockholders' Equity Note Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Financial Instruments and Fair Value Measurements Fair Value Disclosures [Text Block] Transactions with Related Parties Schedule of Related Party Transactions [Table Text Block] Summary of Balances of Transactions with Related Parties Schedule Of Related Party Balances Of Transactions [Table Text Block] Tabular disclosure of balance sheet data resulting from related party transactions. Schedule of Business Acquisitions, by Acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] 2013 Credit Agreement, Term B Loan Senior Secured Credit Facility, Term B Loan, Due April 2018 [Member] Senior Secured Credit Facility, Term B Loan, Due April 2018 [Member] 2013 Credit Agreement, Revolving Facility Senior Secured Credit Facility, Revolving Credit Facility, Old Credit Facility [Member] Senior Secured Credit Facility, Revolving Credit Facility, Old Credit Facility [Member] Term B due on April 17, 2020 Senior Secured Revolving Credit Facility Expiring On April Seventeen Two Thousand Eighteen [Member] Expiring On April Seventeen Two Thousand Eighteen [Member] Notes Payable Notes Payable to Banks [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Maturity extended Extended Maturity Of Senior Secured Credit Facility [Member] Extended Maturity Of Senior Secured Credit Facility, Term A Loan [Member] Maturity not extended Maturity Not Extended Under Senior Secured Credit Facility [Member] Maturity Not Extended Under Senior Secured Credit Facility [Member] LIBOR Debt Instrument [Line Items] Debt Instrument [Line Items] Maximum amount under credit facilities Line of Credit Facility, Maximum Borrowing Capacity Additional borrowing capacity available under the Revolving Facility Line of Credit Facility, Remaining Borrowing Capacity Non interest bearing financing agreement Debt Instrument, Face Amount Note payable Notes Payable Losses reclassified from accumulated other comprehensive loss into income Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Losses expected to be reclassified from accumulated other comprehensive loss into income in the next 12 months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Remaining 2017 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Five Related Party Transactions Related Party Transactions Disclosure [Text Block] Business Combination Business Combination Disclosure [Text Block] Rent expense of office facilities and real estate Rent Expense For Office Facilities And Real Estate Rent expense for office facilities and real estate. Rent expense for telecommunications and other equipment Rent Expense For Telecommunications And Other Equipment Rent expense for telecommunications and other equipment. The Company and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Revenue Business Acquisition, Pro Forma Revenue Earnings Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Payment processing revenue from affiliates Payment Processing Revenue From Affiliates Related parties' revenues related to providing access to the ATH network and other card networks to financial institutions, including related services such as authorization, processing, management and recording of ATM and POS transactions, and ATM management and monitoring. Business solutions revenue from affiliates Business Solutions Revenue From Affiliates Related parties' revenues from a full suite of business process management solutions in various product areas, such as core banking processing, network hosting and management, IT professional services, business process outsourcing, item processing, cash processing, and fulfillment. Other comprehensive income, income tax (benefit) expense expense Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Note Payable due on October 1, 2017 Note Payable Due On October One Two Thousand Seventeen [Member] Note Payable Due On October One Two Thousand Seventeen [Member] Note Payable due on July 31, 2017 Note Payable Due On July One Two Thousand Seventeen [Member] Note payable due on July 1, 2017. Note Payable due on August 31, 2019 Note Payable Due On August 31, 2019 [Member] Note Payable Due On August 31, 2019 [Member] Note Payable due on April 30, 2021 Note Payable Due On April One Two Thousand Twenty One [Member] Note payable due on April one two thousand twenty one. Credit facility Secured Debt Total debt Long-term Debt Margin interest rate Minimum variable rate Debt Instrument, Interest Rate, Variable Rate Floor Debt Instrument, Interest Rate, Variable Rate Floor Fixed interest rate Debt Instrument, Interest Rate, Stated Percentage