Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Accrued Expenses and Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Accrued expenses and other current liabilities Accrued expenses and other current liabilities Accrued Liabilities, Current Other non-current liabilities Other Noncurrent Liabilities [Member] Line of credit , maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Change in operating assets and liabilities, net of effects of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Expiring period of equity options to employees Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Award Type [Domain] Award Type [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Deferred tax liabilities, net Deferred Income Tax Liabilities, Net Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Purchases of investments Payments to Acquire Investments Adjustment upon final determination of level of performance goal achievement (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Non Issued In Period Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other than Options, Non Issued In Period Rest of World Rest of World Rest Of World [Member] Rest of World. Insider Trading Policies and Procedures [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Derivative instruments Derivative Asset, Current Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Five Derivative instruments Derivative Instruments and Hedges, Liabilities Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Capital Structure Equity [Text Block] Other assets Increase (Decrease) in Other Noncurrent Assets Credit Facilities [Line Items] Line of Credit Facility [Line Items] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Prior period items Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount Share-based compensation arrangement by share-based payment award, maximum employee subscription Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Employee Stock Ownership Plan (ESOP) Disclosures [Line Items] Employee Stock Ownership Plan (ESOP) Disclosures [Line Items] Summary of Weighted Average Actuarial Assumptions Defined Benefit Plan, Assumptions [Table Text Block] Current liabilities: Liabilities, Current [Abstract] Domestic Deferred Federal Income Tax Expense (Benefit) Preferred stock, $0.001 par value; 15,000,000 shares authorized, none issued Preferred Stock, Value, Issued Subsequent Event Type [Domain] Subsequent Event Type [Domain] Percentage of expected return on plan assets Defined Benefit Plan Expected Return On Plan Assets Percentage Defined Benefit Plan Expected Return On Plan Assets Percentage Benefit on settlement of convertible notes Effective Income Tax Rate Reconciliation, Deduction, Settlement Of Convertible Debt Effective Income Tax Rate Reconciliation, Deduction, Settlement Of Convertible Debt Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Long-lived assets impairment charges Impairment, Long-Lived Asset, Held-for-Use Diluted (in dollars per share) Earnings Per Share, Diluted Fair value mark-to-market of short-term investments Unrealized Gain (Loss) on Investments Less: 38,132,158 shares as of December 31, 2023 and 33,767,660 shares as of December 31, 2022, held in treasury, at cost Treasury Stock, Value Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Derivative financial instruments Foreign Currency Contracts, Liability, Fair Value Disclosure Rate of increase in compensation levels Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Components of Net Periodic Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Gains / (losses) recognized during the year Other Comprehensive Income (Loss), before Reclassifications, before Tax Excise and sales taxes Excise and Sales Taxes Trading Symbol Trading Symbol Outstanding letters of credit Letters of Credit Outstanding, Amount Investment in equity affiliate Payments to Acquire Equity Method Investments Non-compete agreements Noncompete Agreements [Member] Weighted-average exercise price, granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Impairment of Long-lived Assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Credit Agreement Credit Agreement [Member] Credit Agreement [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Intangible assets, gross carrying amount Intangible Assets, Gross (Excluding Goodwill) Gratuity Payable Gratuity Payable [Member] Gratuity Payable Amortization of non-cash interest expense related to convertible notes Amortization of Debt Discount (Premium) Employee Stock Employee Stock [Member] 2022 Employee stock purchase plan 2022 Employee Stock Purchase Plan [Member] 2022 Employee Stock Purchase Plan Advance income tax, net Prepaid Taxes Mutual funds Mutual Fund Fair Value Disclosure Mutual fund fair value disclosure. Deferred revenue (consideration received in advance) Contract with Customer, Liability Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Service cost Defined Benefit Plan, Service Cost Executive Category: Executive Category [Axis] Net prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Weighted-average exercise price, exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Level 1) Fair Value, Inputs, Level 1 [Member] Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Equity Components [Axis] Equity Components [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Hedging Relationship [Domain] Hedging Relationship [Domain] Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant 2025 Long-Term Debt, Maturity, Year Two Number of options, granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Depreciation and amortization Depreciation And Amortization [Member] Depreciation And Amortization [Member] Entity Small Business Entity Small Business Denominators: Weighted Average Number of Shares Outstanding, Basic [Abstract] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Four Local Phone Number Local Phone Number Unrealized foreign currency exchange gain, net Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] 2028 Finance Lease, Liability, to be Paid, Year Five Foreign exchange contracts outstanding Derivative, Notional Amount Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Schedule of Deferred Compensation Arrangement with Individual [Table] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Depreciation and amortization expense Depreciation Retirement Benefits [Abstract] Retirement Benefits [Abstract] Additions Accounts Receivable, Credit Loss Expense (Reversal) And Other Writeoffs Accounts Receivable, Credit Loss Expense (Reversal) And Other Writeoffs Others Other Sundry Liabilities, Noncurrent Line of Credit Facility [Table] Line of Credit Facility [Table] Schedule of Company's Debt Position Schedule of Long-Term Debt Instruments [Table Text Block] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Income taxes payable, net Accrued Income Taxes, Current Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Interest expense on the Notes Interest Expense, Debt Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accrued expenses and other liabilities Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Contract liabilities: Contract with Customer, Liability [Abstract] Weighted average potentially dilutive shares considered anti-dilutive and not included in computing diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Award Type [Axis] Award Type [Axis] Number, granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Supplemental disclosure of non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag General and administrative expenses General and Administrative Expense [Member] Hedging Designation [Axis] Hedging Designation [Axis] Goodwill [Line Items] Goodwill [Line Items] Owned assets, gross Property, Plant and Equipment, Gross ROU assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Losses on net investment hedges Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Related Party Disclosures Related Party Transactions Disclosure [Text Block] Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Employer contribution Defined Benefit Plan, Plan Assets, Contributions by Employer PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Leases Lessee, Finance Leases [Text Block] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Summary of Income Tax Expense/(Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Settlement of convertible notes Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Current portion of operating lease liabilities Operating lease liabilities - Current Operating Lease, Liability, Current GST refund rejected Goods And Service Tax, Refund Denied Goods And Service Tax, Refund Denied Interest on lease liabilities Finance Lease, Interest Expense Schedule of Other Assets Schedule of Other Assets [Table Text Block] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Total Finite-Lived Intangible Assets, Net Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Recent Accounting Pronouncements and Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Weighted average purchase price per share (in dollars per share) Shares Acquired, Average Cost Per Share Share-based payment arrangement, expense, tax benefit, discrete benefits Share-Based Payment Arrangement, Expense, Tax Benefit, Discrete Benefits Share-Based Payment Arrangement, Expense, Tax Benefit, Discrete Benefits Derivative asset, notional amount Derivative Asset, Notional Amount Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Accounts receivable, including unbilled receivables Accounts Receivable, before Allowance for Credit Loss Summary of Components of Income /(Loss) Before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Derivative instruments Derivative Instruments and Hedges, Liabilities, Noncurrent Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Gross profit Gross Profit Commitment fee percentage range on unused credit facility Line of Credit Facility, Commitment Fee Percentage Deferred revenue Contract with Customer, Liability, Current Non-deductible expenses Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Security Exchange Name Security Exchange Name Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Percentage of award vesting rights Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Other Non-Current Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block] Employee Stock Option Employee Stock Option [Member] Schedule of Income Tax Recognized in Other Comprehensive Income Schedule Of Deferred Income Tax (Benefit) Recognized In Other Comprehensive Income [Table Text Block] Schedule Of Deferred Income Tax (Benefit) Recognized In Other Comprehensive Income [Table Text Block] Derivatives and Hedge Accounting Derivative Instruments and Hedging Activities Disclosure [Text Block] Short-Term and Long-Term Investments Investment, Policy [Policy Text Block] Derivative financial instruments Foreign Currency Contract, Asset, Fair Value Disclosure Maximum Maximum [Member] Document Type Document Type Owned Assets: Property, Plant and Equipment, Net, Excluding Capital Leased Assets [Abstract] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Acquisition Goodwill, Acquired During Period Effective Interest Rate Line of Credit Facility, Interest Rate During Period Tabular List, Table Tabular List [Table Text Block] Cost of revenues Cost of revenues Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization 2026 Finance Lease, Liability, to be Paid, Year Three Stock Based Compensation Share-Based Payment Arrangement [Text Block] Basis of Preparation Basis of Accounting, Policy [Policy Text Block] Others, net Other Noncash Income (Expense) Summary of Lived Intangible Assets Amortized over their Estimated Useful Lives Schedule Of Finite Lived Intangible Assets Useful Lives Table [Table Text Block] Schedule of finite lived intangible assets useful lives. Trade names and trademarks Trademarks and Trade Names [Member] Schedule of Credit Facilities Carried an Effective Interest Rate Schedule of Line of Credit Facilities [Table Text Block] Deferred contract fulfillment costs Deferred Contract Acquisition Costs NonCurrent Deferred Contract Acquisition Costs NonCurrent Restricted cash Restricted cash (non-current) Restricted Cash, Noncurrent Variable Rate [Axis] Variable Rate [Axis] Number of options, forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Title of 12(b) Security Title of 12(b) Security Employee Benefits Pension and Other Postretirement Plans, Nonpension Benefits, Policy [Policy Text Block] Percentage of target shares an employee can earn Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Target Shares Earned Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Target Shares Earned Actuarial gain (loss) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Related Party [Domain] Related Party, Type [Domain] Insurance Insurance [Member] Insurance [Member] Forward Stock Split Stockholders' Equity, Policy [Policy Text Block] Trade names and trademarks Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Weighted-average fair value, outstanding, beginning balance (in dollars per share) Weighted-average fair value, outstanding, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Depreciation and amortization expense Deferred Tax Assets Depreciation And Amortization Deferred tax assets depreciation and amortization. Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Entity Tax Identification Number Entity Tax Identification Number Currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Total lease cost Lease, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Other current assets Increase (Decrease) in Other Current Assets Balance Sheet Location [Domain] Balance Sheet Location [Domain] Entity Interactive Data Current Entity Interactive Data Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Summary of Activity Related to Gross Unrecognized Tax Benefits Schedule Of Unrecognized Tax Benefits Table [Table Text Block] A summary of unrecognized tax benefits recognized during the period. An unrecognized tax benefit is the difference between a tax position taken in a tax return and the amounts recognized in the financial statements for which it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination. Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Contract with customer, asset, allowance for credit loss Contract with Customer, Asset, Allowance for Credit Loss Other assets Other Assets [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Measure: Measure [Axis] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Lease deposits Security Deposit Summary of Components of Deferred Tax Balances Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] 2024 Finite-Lived Intangible Asset, Expected Amortization, Year One Operating cash outflows for operating leases Operating Lease, Payments Accrued capital expenditures Capital Expenditure, Liability, Current Capital Expenditure, Liability, Current Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Opening Balance Closing Balance Capitalized Contract Cost, Gross Right of use assets, impairment charge Operating Lease, Impairment Loss Interest cost Defined Benefit Plan, Interest Cost Other Income and Expenses [Abstract] PEO PEO [Member] Auditor Location Auditor Location Employee Benefit Plans Retirement Benefits [Text Block] Change in plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Contingent Consideration Contingent Consideration [Member] Contingent Consideration Threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Gain on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Interest Rate Swap Interest Rate Swap [Member] Debt Instrument [Axis] Debt Instrument [Axis] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Repayments of borrowings Repayments of Debt Aggregate intrinsic value, vested and exercisable at December 31, 2023 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Credit Facility [Axis] Credit Facility [Axis] Schedule of Principal Maturities of Borrowings Schedule of Maturities of Long-Term Debt [Table Text Block] Total liabilities Liabilities Total Current Income Tax Expense (Benefit) Volatility for expected life Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Common stock, capital shares reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Liabilities, Noncurrent [Abstract] Liabilities, Noncurrent [Abstract] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate disputed amount related to transfer pricing and permanent establishment Aggregate Disputed Amount Related to Transfer Pricing and Permanent Establishment Aggregate disputed amount related to transfer pricing and permanent establishment Capitalized research and development expenses Deferred Tax Assets, in Process Research and Development Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Software Development Costs Research, Development, and Computer Software, Policy [Policy Text Block] Selling and marketing expenses Selling and marketing expenses Selling and Marketing Expense 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year Two General and administrative expenses General and administrative expenses General and Administrative Expense Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Consideration received for process transition activities Contract From Customer Liability, Consideration Received From Transitions Activities, Revenue Recognized Contract From Customer Liability, Consideration Received From Transitions Activities, Revenue Recognized Total current assets Assets, Current Net gratuity cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Contingent consideration Business Combination, Contingent Consideration, Liability Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Network equipment and computers Technology Equipment [Member] Earnings per share Earnings Per Share, Policy [Policy Text Block] Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Excess tax benefit on stock-based compensation Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Beginning balance, contingent consideration Ending balance, contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Receivables from statutory authorities Service Taxes Receivable, Current Service Taxes Receivable, Current Current provision: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Schedule of Accumulated Other Comprehensive Income/( Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Weighted-average fair value, granted (in dollars per share) Weighted-average fair value of restricted stock units granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Five 2027 Finance Lease, Liability, to be Paid, Year Four Client liabilities Broker-Dealer, Payable to Customer Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Schedule of Estimated Future Amortization of Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Contingent consideration Business Combination, Contingent Consideration, Liability, Current Contract assets Contract with Customer, Asset, before Allowance for Credit Loss Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract] Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract] India INDIA Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Dilutive effect of conversion premium on the Notes (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Depreciation and amortization expense Depreciation, Depletion and Amortization Increase (Decrease) In Capitalized Contract Costs [Roll Forward] Increase (Decrease) In Capitalized Contract Costs [Roll Forward] Increase (Decrease) In Capitalized Contract Costs [Roll Forward] Office furniture and equipment Furniture and Fixtures [Member] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Foreign earnings repatriated, withholding taxes Foreign Earnings Repatriated, Withholding Taxes Foreign Earnings Repatriated, Withholding Taxes Impairment charges Goodwill, Impairment Loss Long-lived assets Long-Lived Assets Valuation allowance Deferred Tax Assets, Valuation Allowance Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Deferred revenue (consideration received in advance) Contract with Customer, Liability, Revenue Recognized Line of credit facility option for additional borrowing capacity Line Of Credit Facility Option For Additional Borrowing Capacity Line of credit facility option for additional borrowing capacity. Number of installments Number of Installments Number of Installments Unrealized gain/(loss) on cash flow hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Interest coverage ratio, minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Reclassification adjustment for retirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax Earnings per share attributable to ExlService Holdings, Inc. stockholders: Earnings Per Share Reconciliation [Abstract] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Depreciation and amortization expense Depreciation and amortization expense Depreciation, Depletion and Amortization, Nonproduction Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Other Assets Other Assets Disclosure [Text Block] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Axis] Entity Emerging Growth Company Entity Emerging Growth Company The United Kingdom UNITED KINGDOM Unamortized debt issuance costs Debt Issuance Costs, Net Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Other intangible assets, net Total intangible assets, net carrying amount Intangible Assets, Net (Excluding Goodwill) Deferred tax assets Deferred Tax Assets, Gross Cash paid during the period for: Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract] 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Repayment of the Notes in cash Repayment of Notes Receivable from Related Parties Title Trading Arrangement, Individual Title Value added tax payable Value Added Tax Payable Value Added Tax Payable Common Stock (1) Common Stock [Member] Individual: Individual [Axis] Unrecognized tax benefits Income Tax Reconciliation Unrecognized Tax Benefits Income tax reconciliation unrecognized tax benefits. Entity Address, Postal Zip Code Entity Address, Postal Zip Code Deferred tax provision Deferred Other Tax Expense (Benefit) Income Statement Location [Domain] Income Statement Location [Domain] Investments, All Other Investments [Abstract] Grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercised in Period, Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercised in Period, Fair Value Accrued employee costs Increase (Decrease) in Other Employee-Related Liabilities Indefinite-lived intangible assets: Indefinite Lived Intangible Assets [Abstract] Indefinite Lived Intangible Assets Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Capitalized Contract Cost [Line Items] Capitalized Contract Cost [Line Items] Unrecognized tax benefits, interest and penalties on income taxes expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Deferred taxes benefit / (expense) recognized on: Deferred Income Taxes and Tax Credits [Abstract] Minimum Minimum [Member] Property and equipment, net Property, Plant and Equipment, Net Weighted average number of shares used in computing earnings per share attributable to ExlService Holdings, Inc. stockholders: Weighted Average Number of Shares Outstanding, Diluted [Abstract] 3.50% Convertible Senior Notes due October 1, 2024 3.50% Convertible Senior Notes due October 1, 2024 [Member] 3.50% Convertible Senior Notes due October 1, 2024 [Member] Total other comprehensive income/(loss) Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Cash flow hedge gain to be reclassified within twelve months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Projected benefit obligation as of January 1 Projected benefit obligation as of December 31 Defined Benefit Plan, Benefit Obligation Assets Assets [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Foreign exchange gain, net Gain/(loss) recognized in consolidated statements of income Gain (Loss), Foreign Currency Transaction, before Tax Operating lease liabilities Increase (Decrease) in Operating Lease Liability Total consideration Payment, Tax Withholding, Share-Based Payment Arrangement Others Deferred Tax Assets, Other Other current assets Other Current Assets [Member] Risk-Free Interest Rate, Monte Carlo Simulation Model, Performance Restricted Stock Units Risk-Free Interest Rate, Monte Carlo Simulation Model, Performance Restricted Stock Units [Member] Risk-Free Interest Rate, Monte Carlo Simulation Model, Performance Restricted Stock Units Net cash used for financing activities Net Cash Provided by (Used in) Financing Activities Deferred tax assets, net Deferred Income Tax Assets, Net Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Retained Earnings Retained Earnings [Member] Current portion of long-term borrowings Long-Term Debt, Current Maturities Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Effect of exchange rate changes Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Basic (in dollars per share) Earnings Per Share, Basic Share-based compensation arrangement by share-based payment award, shares issued in period, value Stock Issued During Period, Value, Employee Stock Purchase Plan Unrecognized compensation cost for unvested stock options Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Summary of Change in Projected Benefit Obligation Schedule of Changes in Projected Benefit Obligations [Table Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Net deferred tax assets Deferred Tax Assets, Net Plan assets at the beginning of the year Plan assets at the end of the year Defined Benefit Plan, Plan Assets, Amount Aggregate intrinsic value, exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Principles of Consolidation Consolidation, Policy [Policy Text Block] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Document Transition Report Document Transition Report Award Timing Predetermined Award Timing Predetermined [Flag] Measurement period adjustments Goodwill, Purchase Accounting Adjustments Interest Payments (1) Interest Expense [Member] Accounts payable Increase (Decrease) in Accounts Payable Reclassification adjustment for cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Less : Accumulated amortization Capitalized Computer Software, Accumulated Amortization Entity Public Float Entity Public Float 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] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Total Long-Term Debt, Gross Accrued expenses Accrued Expenses Current Accrued expenses. Liability Class [Axis] Liability Class [Axis] All Trading Arrangements All Trading Arrangements [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Stock split conversion ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Compensation Amount Outstanding Recovery Compensation Amount New Credit Agreement New Credit Agreement [Member] New Credit Agreement Schedule of Supplemental Balance Sheet Information Schedule Of Leases In Statement Of Financial Position [Table Text Block] Schedule Of Leases In Statement Of Financial Position [Table Text Block] Allowance/(reversal) for expected credit losses Accounts Receivable, Credit Loss Expense (Reversal) Derivative instruments Derivative Asset Weighted-average fair value, forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Total Deferred Income Tax Expense (Benefit) Subsequent Event Type [Axis] Subsequent Event Type [Axis] Cash received Proceeds from Stock Options Exercised Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Income before earnings from equity affiliates Income (Loss) From Continuing Operations Before Equity Method Investments, Total Income (Loss) From Continuing Operations Before Equity Method Investments, Total Total finance lease liabilities Present value of lease liabilities Finance Lease, Liability Weighted-average exercise price, forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Number, forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Accumulated benefit obligation as of December 31 Defined Benefit Plan, Accumulated Benefit Obligation Less: Allowance for expected credit losses Opening Balance Closing Balance Accounts Receivable, Allowance for Credit Loss Other Current Assets Other Current Assets [Text Block] 2024 Long-Term Debt, Maturity, Year One Other assets Other Assets Dilutive effect of share based awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Term deposits Term Deposits, Current Term Deposits, Current Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Document Period End Date Document Period End Date The Philippines PHILIPPINES Adoption Date Trading Arrangement Adoption Date Finance lease Finance Lease, Weighted Average Discount Rate, Percent Finance lease liabilities - Non-current Finance Lease, Liability, Noncurrent Movement in Allowance for Expected Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block] Treasury Stock Treasury Stock, Common [Member] Gain/ (loss) on foreign currency exchange contracts Reclassification out of Accumulated Other Comprehensive Income [Member] Income tax expense Income tax expense Income tax effects on above Income tax expense Income Tax Expense (Benefit) Total Non-United States Non-US [Member] Derivatives Designated as Hedging Instruments Derivative designated as hedging instruments Designated as Hedging Instrument [Member] Reductions due to write-off of accounts receivables Accounts Receivable, Allowance for Credit Loss, Writeoff Property and equipment, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Vesting [Axis] Vesting [Axis] Number of operating segments Number of Operating Segments Reclassification to net income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Operating loss carryforward valuation allowance Operating Loss Carryforwards, Valuation Allowance Currency translation adjustments Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation Equity [Abstract] Equity [Abstract] Operating lease Operating Lease, Weighted Average Remaining Lease Term Total accrued liability Liability, Defined Benefit Plan Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Deferred rent Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Amortization of actuarial (gain)/loss, gross of tax Defined Benefit Plan, Amortization of Gain (Loss) Discount for illiquidity Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Discount for Postvesting Restrictions Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Shares repurchased (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Business acquisition (net of cash and cash equivalents acquired) Payments to Acquire Businesses, Net of Cash Acquired Expected long-term rate of return on plan assets per annum Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets Right-of-use assets under finance leases: Capital Leases, Balance Sheet, Assets by Major Class, Net [Abstract] Credit Facility [Domain] Credit Facility [Domain] Acquisition of treasury stock (in shares) Shares repurchased (in shares) Treasury Stock, Shares, Acquired Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Estimated useful life Estimated useful lives Property, Plant and Equipment, Useful Life Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Schedule of Company's Contribution Plan Defined Contribution Plan Disclosures [Table Text Block] Other commitment Other Commitment Contract with Customer, Receivables, Assets and Liabilities Recognized Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] ROU assets obtained in exchange for new finance lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Summary of Other Non-Current Liabilities Other Noncurrent Liabilities [Table Text Block] Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Revenues, net and Accounts Receivable, net Revenue from Contract with Customer [Text Block] Additional paid-in capital Additional Paid in Capital, Common Stock Additional Paid-in Capital (1) Additional Paid-in Capital [Member] Unrealized gain/(loss) on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Document Annual Report Document Annual Report Motor vehicles Vehicles [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Gain from equity-method investment Income (Loss) from Equity Method Investments Cover [Abstract] Cover [Abstract] Subsequent Events Subsequent Events [Text Block] Prepaid expenses Other Prepaid Expense, Current The United States The United States UNITED STATES Fair Value Measurements Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Other non-current liabilities Other non-current liabilities Other Liabilities, Noncurrent Capitalized costs Deferred Tax Liabilities, Deferred Expense Total lease payments Lessee, Operating Lease, Liability, to be Paid Short-term investments Total Short-term investments Short-Term Investments Derivatives in cash flow hedging relationships Cash Flow Hedging [Member] Total operating expenses Operating expenses Operating Expenses Depreciation on underlying ROU assets Finance Lease, Right-of-Use Asset, Amortization Segment and Geographical Information Segment Reporting Disclosure [Text Block] Net increase/(decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Equity Component [Domain] Equity Component [Domain] Finance lease liabilities - Current Finance Lease, Liability, Current Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Others Deferred Tax Liabilities, Other Retirement benefits Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Entity Current Reporting Status Entity Current Reporting Status Analytics Analytics [Member] Analytics [Member] Income from operations Operating Income (Loss) Interest coverage ratio, maximum Debt Instrument, Covenant, Leverage Ratio, Maximum Debt Instrument, Covenant, Leverage Ratio, Maximum Effect of foreign exchange gain/(loss) Gain (Loss) on Hedging Activity Deferred tax liabilities Deferred Tax Liabilities, Gross Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Capitalized Contract Cost [Domain] Capitalized Contract Cost [Domain] Segments [Axis] Segments [Axis] Property and equipment Property, Plant and Equipment, Policy [Policy Text Block] Other comprehensive income/(loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Amortization of actuarial (gain)/loss, net of tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Customer relationships Customer Relationships [Member] ExlService Holdings, Inc. Stockholders’ equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year One Share-Based Payment Arrangement, Tranche One [Member] Internally developed software, net Capitalized Computer Software, Net Deferred income tax benefit Deferred Income Taxes and Tax Credits Variable Rate [Domain] Variable Rate [Domain] Fair value changes Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Pay vs Performance Disclosure [Line Items] Entity Voluntary Filers Entity Voluntary Filers Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Convertible debt, threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Number, outstanding, beginning balance (in shares) Number, outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Borrowings Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Consideration received for process transition activities Contract From Customer Liability, Consideration Received From Transitions Activities Contract From Customer Liability, Consideration Received From Transitions Activities Contribution to the 401(k) Plans Defined Contribution Plan, Employer Discretionary Contribution Amount Revolving credit facility Principal Payments Revolving Credit Facility [Member] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Percentage of export-oriented units established Export Oriented Units Established Percentage Export oriented units established percentage. MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Segment Reporting [Abstract] Segment Reporting [Abstract] Accounts payable Accounts Payable, Current Restatement Determination Date: Restatement Determination Date [Axis] Impairment loss in relation to costs capitalized Capitalized Contract Cost, Impairment Loss Foreign exchange gain, net, interest expense and other income, net Nonoperating Income (Expense) Commitments and contingencies Commitments and Contingencies Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Purchase commitment Long-Term Purchase Commitment, Amount Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Schedule of Goodwill [Table] Schedule of Goodwill [Table] Geographical [Axis] Geographical [Axis] South Africa SOUTH AFRICA Income Taxes Income Tax Disclosure [Text Block] Deferred revenue Increase (Decrease) in Contract with Customer, Liability 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Others Other Assets, Miscellaneous, Current Leases Lessee, Leases [Policy Text Block] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Payment of contingent consideration Payment for Contingent Consideration Liability, Financing Activities Derivative liability Derivative Liability, Subject to Master Netting Arrangement, before Offset PEO Total Compensation Amount PEO Total Compensation Amount Hedging Relationship [Axis] Hedging Relationship [Axis] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Goodwill [Roll Forward] Goodwill [Roll Forward] Schedule of Purchase of Common Stock from Employees Withholding Tax Payments Related to Vesting of Restricted Stock Schedule of Purchase of Common Stock From Employees Withholding Tax Payments [Table Text Block] Schedule of Purchase of Common Stock From Employees Withholding Tax Payments Additions Increase In Capitalized Contract Cost Gross Increase In Capitalized Contract Cost Gross Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] (Level 3) Fair Value, Inputs, Level 3 [Member] Treasury stock, common (in shares) Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Treasury Stock, Common, Shares 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year One Number of options, outstanding, beginning balance (in shares) Number of options, outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Stock issued against stock-based compensation plans Stock Issued During Period, Value, Stock Options Exercised Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Interest and dividend income Investment Income, Interest and Dividend Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Weighted average grant date fair value of per unit of stock option granted during the period (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Income tax effects relating to above Total Other Comprehensive Income (Loss), Tax Net income attributable to ExlService Holdings, Inc. stockholders Net income Net income Net Income (Loss) Total current liabilities Liabilities, Current Derivative Contract [Domain] Derivative Contract [Domain] 2025 Finance Lease, Liability, to be Paid, Year Two Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] Property and equipment, net Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Finite-lived intangible assets: Finite-Lived Intangible Assets [Line Items] Effect of exchange rate changes Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Total consideration Stock Repurchased During Period, Value Assets acquired under finance lease Lease Obligation Incurred Schedule of Share-Based Compensation, Employee Stock Purchase Plan, Activity Schedule of Share-Based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Stock issued against stock-based compensation plans (in shares) Number of options, exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Unrealized gain/(loss) recognized in OCI Foreign currency forward contracts Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Healthcare Health Care Segment [Member] Health Care Segment Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table] Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table] Accounts Receivable and Allowance for Expected Credit Losses Receivable [Policy Text Block] Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Restricted Stock Activity Under Company's Stock Plans Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Schedule of Indefinite Lived Intangible Assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Foreign exchange contract Foreign Exchange Contract [Member] Name Measure Name Weighted average remaining lease term (in years) Weighted-Average Remaining Lease Term [Abstract] Weighted-Average Remaining Lease Term [Abstract] Name Forgone Recovery, Individual Name Total finance lease cost Finance Lease Cost Finance Lease Cost Goodwill Beginning balance Ending balance Goodwill Increases/(decreases) related to prior year tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Underlying Securities Award Underlying Securities Amount Number of classes of common stock outstanding Number Of Classes Of Common Stock Outstanding Number Of Classes Of Common Stock Outstanding Maximum outstanding term of cash flow hedges Maximum Length of Time Hedged in Cash Flow Hedge Accumulated Other Comprehensive Income/( Loss) Comprehensive Income (Loss) Note [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable 2019 Repurchase Program Two Thousand Nineteen Repurchase Program [Member] Two Thousand Nineteen Repurchase Program [Member] Payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Historical Volatilities, Monte Carlo Simulation Model, Performance Restricted Stock Units Historical Volatilities, Monte Carlo Simulation Model, Performance Restricted Stock Units [Member] Historical Volatilities, Monte Carlo Simulation Model, Performance Restricted Stock Units Operating lease liabilities, less current portion Operating lease liabilities - Non-current Operating Lease, Liability, Noncurrent Share-based compensation arrangement by share-based payment award, purchase period Share-Based Compensation Arrangement By Share-based Payment Award, Purchase Period Share-Based Compensation Arrangement By Share-based Payment Award, Purchase Period Revenues and cost of revenues for Company's reportable segments [Line Items] Revenue from External Customer [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Foreign branch accounting Deferred Tax Liabilities, Undistributed Foreign Earnings Summary of Fair Value of Foreign Currency Exchange Contracts Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block] Two Thousand Twenty Four Repurchase Program Two Thousand Twenty Four Repurchase Program [Member] Two Thousand Twenty Four Repurchase Program Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Income Statement Location [Axis] Income Statement Location [Axis] Retirement benefits Non-current liability (included under other non-current liabilities) Liability, Defined Benefit Plan, Noncurrent Commitments and contingencies Commitments and Contingencies, Policy [Policy Text Block] Foreign currency translation gain/(loss) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Schedule of Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Change in projected benefit obligation Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Foreign earnings repatriated Foreign Earnings Repatriated Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Schedule of Components of Lease Cost Lease, Cost [Table Text Block] Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Contract Acquisition Costs Contract Acquisition Costs [Member] Contract Acquisition Costs [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Plan Name [Domain] Plan Name [Domain] Interest expense Interest expense Interest Expense Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount State taxes, net of Federal taxes Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount Loss on settlement of convertible notes Loss on settlement of convertible notes Gain (Loss) on Extinguishment of Debt Weighted-average remaining contractual life Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Trading Arrangement: Trading Arrangement [Axis] Share-Based Payment Arrangement, Performance Shares, Outstanding Activity Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number Acquisition of treasury stock Acquisition Of Treasury Stock Value Equity impact of the value of stock that has been repurchased during the period and has not been retired and is held in treasury. 2029 and thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five 2026 Long-Term Debt, Maturity, Year Three Increases/(decreases) related to prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Auditor Firm ID Auditor Firm ID Amortization expense Amortization of Intangible Assets Entity Shell Company Entity Shell Company Advances to suppliers Prepaid Supplies Long-term investments Total Long-term investments Long-Term Investments Restatement Determination Date Restatement Determination Date Income taxes payable, net Increase (Decrease) in Income Taxes Payable Increases related to current year tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash, cash equivalents and restricted cash at the beginning of the period Cash, cash equivalents and restricted cash at the end of the period Cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Variable lease costs Variable Lease, Cost Operating lease Operating Lease, Cost Operating Lease Operating Leases [Abstract] Operating Leases [Abstract] Common stock, shares issued (in shares) Common Stock, Shares, Issued Number, vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Net actuarial gain/(loss) Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Proceeds from redemption of investments Proceeds from Sale, Maturity and Collection of Investments Research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Total borrowings Long-Term Debt Total Assets, Fair Value Disclosure Others, net Other Miscellaneous Nonoperating Income (Expense) Other Miscellaneous Nonoperating Income (Expense) 2027 Long-Term Debt, Maturity, Year Four Foreign currency translation gain/(loss) Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Schedule of Amortization of Intangible Assets Finite-Lived Intangible Assets Amortization Expense [Table Text Block] Cost not yet recognized, period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Summary of Expected Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Unfunded status as of December 31 Defined Benefit Plan, Funded (Unfunded) Status of Plan Restricted stock units vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number Summary of Other Income, net Interest and Other Income [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Subsequent Event [Table] Subsequent Event [Table] Accumulated benefit obligation in excess of plan assets as of December 31 Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets Weighted-average fair value, adjustment upon final determination of level of performance goal achievement (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Issued in Period, Weighted Average Issue Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Issued in Period, Weighted Average Issue Date Fair Value 2024 Finance Lease, Liability, to be Paid, Year One Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Emerging Business Emerging Business [Member] Emerging Business Amount recognized in AOCI, excluding tax effects Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Subsequent Event Subsequent Event [Member] Share-based compensation arrangement by share-based payment award, maximum employee subscription rate Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate Others Other Liabilities, Current Analytics services Analytics Services [Member] Analytics Services [Member] Weighted average purchase price per share (in dollars per share) Accelerated Share Repurchases, Final Price Paid Per Share Income Statement [Abstract] Income Statement [Abstract] Short-term investments Short-Term Investments [Abstract] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Cash and cash equivalents (money market funds) Cash and Cash Equivalents, Fair Value Disclosure Accrued employee costs and other expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Deferred contract fulfillment costs Deferred Contract Acquisition Costs Current Deferred Contract Acquisition Costs Current Numerators: Net Income (Loss) Attributable to Parent [Abstract] Other current assets Other current assets Other Assets, Current Number of votes per common stock Number Of Votes Per Common Stock Number Of Votes Per Common Stock Deposits with statutory authorities Deposit Assets Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) [Member] Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) [Member] Investment in equity affiliate Equity Method Investments Amortization Capitalized Contract Cost, Amortization Land Land [Member] Total Shareholder Return Amount Total Shareholder Return Amount Acquisition of treasury stock Payments for Repurchase of Common Stock Audit Information [Abstract] Audit Information Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Foreign Deferred Foreign Income Tax Expense (Benefit) Contract Acquisition and Fulfillment Costs Capitalized Contract Cost [Table Text Block] Segments [Domain] Segments [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Retained earnings Retained Earnings (Accumulated Deficit) Debt instrument face amount Debt Instrument, Face Amount Current assets: Assets, Current [Abstract] Leases [Abstract] Leases [Abstract] Mutual funds Mutual Funds, Asset, Fair Value Disclosure Mutual Funds, Asset, Fair Value Disclosure Deferred tax assets: Components of Deferred Tax Assets [Abstract] Entity Address, State or Province Entity Address, State or Province Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Total lease payments Finance Lease, Liability, to be Paid Schedule of Revenues from External Customers and Property, Plant and Equipment [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Conversion rate Debt Instrument, Convertible, Conversion Ratio Digital operations and solutions Digital Operations And Solutions Services [Member] Digital Operations And Solutions Services Long-term investments Long-Term Investments [Abstract] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Derivative asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Percentage of discretionary contributions towards 401(k) Plan, maximum Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Increase (decrease) in lease liabilities Increase (Decrease) In Operating Lease Liabilities Increase (Decrease) In Operating Lease Liabilities Expected tax expense Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Revenues from External Customers and Property, Plant and Equipment [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Effective tax rate increased Effective Income Tax Rate Reconciliation, Percent Total operating lease liabilities Present value of lease liabilities Operating Lease, Liability Unrecognized tax benefits Liability for Uncertainty in Income Taxes, Noncurrent Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Vesting [Domain] Vesting [Domain] Weighted average exercise price, vested and exercisable at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Accumulated Other Comprehensive Income/(Loss) Total AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Contributions to the defined social security contribution plans Defined Contribution Plan, Cost All Executive Categories All Executive Categories [Member] Deferred transition revenue Contract with Customer, Liability, Noncurrent Others Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Retirement benefits Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Plan Name [Axis] Plan Name [Axis] Bank guarantees Value Added Tax, Bank Guarantees Value Added Tax, Bank Guarantees Debt Disclosure [Abstract] Debt Disclosure [Abstract] Market Condition-Based PRSUs Market Condition Based Performance Restricted Stock Units [Member] Market Condition Based Performance Restricted Stock Units [Member] Income tax benefit related to stock-based compensation Share-Based Payment Arrangement, Expense, Tax Benefit Earnings per share attributable to ExlService Holdings, Inc. stockholders: Earnings Per Share [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Common stock, $0.001 par value; 400,000,000 shares authorized, 203,410,038 shares issued and 165,277,880 shares outstanding as of December 31, 2023 and 199,939,880 shares issued and 166,172,220 shares outstanding as of December 31, 2022 Common Stock, Value, Issued Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Reduction in the carrying amount of operating lease right-of-use assets Operating Lease, Right-of-Use Asset, Periodic Reduction Income tax effects on above Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax Performance based percentage Percentage Of Performance Criteria Achieved And Shares Vested Percentage Of Performance Criteria Achieved And Shares Vested Deferred provision/(benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Principal payments of finance lease liabilities Financing cash outflows for finance leases Finance Lease, Principal Payments Schedule of Maturities of Finance Lease Liabilities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] All Individuals All Individuals [Member] Weighted average discount rate Weighted-Average Discount Rate [Abstract] Weighted-Average Discount Rate [Abstract] Cash payments for amounts included in the measurement of lease liabilities : Cash Flow, Operating Activities, Lessee [Abstract] Finance lease, right-of-use asset, statement of financial position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other income/(expense), net Other income/(expense), net Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Summary of Company's Purchased Shares of its Common Stock, Including Commissions Class of Treasury Stock [Table Text Block] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Statement [Table] Statement [Table] Contingent consideration Business Combination, Contingent Consideration, Liability, Noncurrent Current Fiscal Year End Date Current Fiscal Year End Date Deferred Compensation Arrangement with Individual [Line Items] Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items] Repurchase of common stock authorized by board of directors Stock Repurchase Program, Authorized Amount Summary of Effective Income Tax Rate Differs from Amount Computed by Applying U.S. Federal Statutory Income Tax Rate to Income Before Income Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Summary of Effect of Net Investment Hedges on Accumulated Other Comprehensive Income Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Unrecognized tax benefits, beginning balance Unrecognized tax benefits, ending balance Unrecognized Tax Benefits PEO Name PEO Name Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Restricted cash Restricted cash (current) Restricted Cash, Current 2029 to 2033 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Buildings Building [Member] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Government Grants Government Grants [Policy Text Block] Government Grants [Policy Text Block] Tax credit carry forwards Deferred Tax Assets, Tax Credit Carryforwards Investment Investment [Table Text Block] Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Employers matching contribution, share match program, cap per employee Employers Matching Contribution, Share Match Program, Cap per Employee Employers Matching Contribution, Share Match Program, Cap per Employee Payments to acquire other investments Payments to Acquire Other Investments Contract Fulfillment Costs Contract Fulfillment Costs [Member] Contract Fulfillment Costs [Member] Interest rate Debt Instrument, Interest Rate, Stated Percentage Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Total stockholders’ equity Equity, Attributable to Parent Weighted Average Valuation Assumptions for Market Condition Performance Restricted Stock Units Schedule of Share-Based, Stock Units, Valuation Assumptions [Table Text Block] Schedule of Share-Based, Stock Units, Valuation Assumptions [Table Text Block] Unrecognized tax benefits that would impact tax rate if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Less: Accumulated depreciation Accumulated depreciation Finance Lease, Right-of-Use Asset, Accumulated Amortization Convertible notes payable Convertible Notes Payable [Member] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Expected life (years) Expected life (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Income before income tax expense and earnings from equity affiliates Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Subsequent Events [Abstract] Accounts receivable not billed Unbilled Contracts Receivable Fair value measurement Fair Value Measurement, Policy [Policy Text Block] Derivative not designated as hedging instruments Not Designated as Hedging Instrument [Member] Summary of Components of Actuarial Gain/(Loss) Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Current liability (included under accrued employee costs) Liability, Defined Benefit Plan, Current Hedging Designation [Domain] Hedging Designation [Domain] (Level 2) Fair Value, Inputs, Level 2 [Member] Property and Equipment, Net Based on Geographical Information Long-Lived Assets by Geographic Areas [Table Text Block] Proceeds from borrowings Proceeds from Issuance of Other Long-Term Debt Summary of Effect of Foreign Currency Exchange Contracts on Consolidated Statements of Income/(Loss) Derivative Instruments, Gain (Loss) [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Shares received per share held, stock splits Shares Received Per Share Held, Stock Splits Shares Received Per Share Held, Stock Splits Document Fiscal Period Focus Document Fiscal Period Focus Convertible debt, threshold trading days Debt Instrument, Convertible, Threshold Trading Days Estimated useful lives of intangible assets Finite-Lived Intangible Asset, Useful Life 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Weighted-average exercise price, outstanding, beginning balance (in dollars per share) Weighted-average exercise price, outstanding, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Accrued expenses and other current liabilities Accrued Expenses And Other Current Liabilities [Member] Accrued expenses and other current liabilities. Payment terms Revenue From Contract With Customer, Payment Terms Revenue From Contract With Customer, Payment Terms Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Revenues Based on Geographical Information Revenue from External Customers by Geographic Areas [Table Text Block] Total bank guarantees and deposits in respect of contingencies Total Bank Guarantees And Deposits In Respect Of Contingencies Total Bank Guarantees and Deposits in Respect of Contingencies Increase in number of shares available for grant (in shares) Share Based Compensation Arrangement By Share Based Payment Award, Increase In Number Of Shares Available For Grant Share Based Compensation Arrangement By Share Based Payment Award, Increase In Number Of Shares Available For Grant Stock repurchase program, period in force Stock Repurchase Program, Period in Force Right of use assets under finance leases, gross Property and equipment, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization City Area Code City Area Code Product and Service [Axis] Product and Service [Axis] Earnings Per Share Earnings Per Share [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Geographical [Domain] Geographical [Domain] Unrealized gain/(loss) on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Software Software and Software Development Costs [Member] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Schedule of Stock Options Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Common stock, dividends Dividends, Common Stock, Cash Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Goodwill and Intangible Assets Disclosure [Abstract] Total Liabilities, Fair Value Disclosure Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Income taxes Income Taxes Paid, Net Acquisitions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Developed technology Developed Technology Rights [Member] Schedule of Costs Related to Company's Stock-based Compensation Plan Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Other assets Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Risk free interest rate for expected life Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Operating lease right-of-use assets Operating lease ROU assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Foreign Current Foreign Tax Expense (Benefit) Finance lease, liability, current, statement of financial position [Extensible Enumeration] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Arrangement Duration Trading Arrangement Duration Concentration of Credit Risk in Financial Instruments Concentration Of Credit Risk In Financial Instruments [Policy Text Block] Concentration Of Credit Risk In Financial Instruments Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Related Party Related Party [Member] Revenues and Cost of Revenues for Company's Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Issuance of treasury stock (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued 2022 Repurchase Program Two Thousand Twenty Two Repurchase Program [Member] Two Thousand Twenty Two Repurchase Program Termination Date Trading Arrangement Termination Date Domestic Current Federal, State and Local, Tax Expense (Benefit) Common stock, shares authorized (in shares) Common Stock, Shares Authorized Amortization expense Capitalized Computer Software, Amortization Total including shares held in treasury Stockholders Equity Including Shares Held In Treasury Total stockholders' equity including shares held in treasury. Accrued Expenses and Other Current Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Schedule of Supplemental Cash Flow Information Related to Leases Schedule Of Supplemental Cash Flow And Other Information, Leases [Table Text Block] Schedule of Statement of Cash Flows, Supplemental Disclosures [Table Text Block] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] 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] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Income tax effects Reclassification from AOCI, Current Period, Tax Award Timing Disclosures [Line Items] Investments Investment [Text Block] Grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Interest expense and amortization, debt Interest Expense And Amortization, Debt Interest Expense And Amortization, Debt Gain on Sale of Investments Gain (Loss) on Investments Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Income Taxes Income Tax, Policy [Policy Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Insider Trading Arrangements [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Others Other Assets, Miscellaneous Related Party [Axis] Related Party, Type [Axis] Aggregate intrinsic value, outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Adjustment to Compensation, Amount Adjustment to Compensation Amount Year Two Share-Based Payment Arrangement, Tranche Two [Member] Finance Lease Finance Leases [Abstract] Finance Leases [Abstract] Cost of revenues Cost of Sales [Member] Fair value changes in contingent consideration Fair value changes of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] 2018 Stock options plan Two Thousand Eighteen Stock Options Plan [Member] Two Thousand Eighteen Stock Options Plan [Member] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Auditor Name Auditor Name Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Assets and Liabilities Measured at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Entity Central Index Key Entity Central Index Key Liabilities Liabilities, Fair Value Disclosure [Abstract] Stock-based compensation expenses Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accrued employee costs Employee-related Liabilities, Current Name Trading Arrangement, Individual Name Retirement benefits (incl. effects of tax rate changes) Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Retirement benefits Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Revenues, net Revenues, net Revenue from Contract with Customer, Excluding Assessed Tax Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Fair value hedge Fair Value Hedging [Member] Capitalized Contract Cost [Table] Capitalized Contract Cost [Table] Share Match Units Share Match Units [Member] Share Match Units Operating lease Operating Lease, Weighted Average Discount Rate, Percent Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Share-based compensation arrangement by share-based payment award, shares issued in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Net unrealized gain on investments Deferred Tax Liabilities, Financing Arrangements Assets Assets, Fair Value Disclosure [Abstract] Business Combinations, Goodwill and Other Intangible Assets Business Combinations Policy [Policy Text Block] Long-term borrowings, less current portion Long-term borrowings Long-Term Debt, Excluding Current Maturities Finance lease Finance Lease, Weighted Average Remaining Lease Term Finance lease, liability, noncurrent, statement of financial position [Extensible Enumeration] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Leasehold improvements Leasehold Improvements [Member] Actual return Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Selling and marketing expenses Selling and Marketing Expense [Member] Payable to statutory authorities Statutory Authority Payables, Current Statutory Authority Payables, Current Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Weighted-average remaining contractual life, granted Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Granted, Outstanding, Weighted Average Remaining Contractual Term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Granted, Outstanding, Weighted Average Remaining Contractual Term Cost Capitalized Computer Software, Gross Operating expenses: Operating Expenses [Abstract] Net unrealized foreign exchange loss Deferred Tax Assets, Unrealized Currency Losses Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Company Selected Measure Amount Company Selected Measure Amount Finance lease: Lease, Cost [Abstract] 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Share Repurchase Program [Axis] Share Repurchase Program [Axis] 2029 and thereafter Finance Lease, Liability, to be Paid, after Year Five Issuance of treasury stock Repayment of the Notes in shares Stock Issued During Period, Value, Treasury Stock Reissued Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Performance Based Stock Awards Performance Based Stock Awards [Member] Performance Based Stock Awards [Member] Operating cash outflows for finance leases Finance Lease, Interest Payment on Liability Other Income/(Expense), net Interest and Other Income [Text Block] Weighted-average fair value, vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Capital work in progress Construction in Progress [Member] Revenue-Based PRSUs Revenue Based Performance Restricted Stock Units [Member] Revenue Based Performance Restricted Stock Units [Member] Reclassification adjustments: Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Prime Rate Prime Rate [Member] Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents Disclosure [Text Block] Share-based compensation arrangement by share-based payment award, period to be Transferable after vesting date Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Period To Be Transferable After Vesting Date Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Period To Be Transferable After Vesting Date Total before tax Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Non-PEO NEO Non-PEO NEO [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Term deposits Term Deposits, Non-Current Term Deposits, Non-Current Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Statement [Line Items] Statement [Line Items] Number of options, vested and exercisable at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Intangible assets Deferred Tax Liabilities, Intangible Assets Settlement of portion of convertible notes through issuance of treasury stock Notes Reduction Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain]