Number, Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Document Type
Document Type
Aggregate Intrinsic Value, Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Other income, net
Other income, net
Other Nonoperating Income (Expense)
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Number of Options, Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Owned Assets:
Property, Plant and Equipment, Net, Excluding Capital Leased Assets [Abstract]
Amortization of non-cash interest expense related to convertible senior notes
Amortization of debt discount on the Notes
Amortization of Debt Discount (Premium)
Treasury Stock
Treasury Stock [Member]
Payables and Accruals [Abstract]
Payables and Accruals [Abstract]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Segments [Axis]
Segments [Axis]
Employee Benefit Plans
Retirement Benefits [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
Schedule of Accumulated Other Comprehensive Loss
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Level 3
Fair Value, Inputs, Level 3 [Member]
Contract assets
Contract with Customer, Asset, before Allowance for Credit Loss
Consideration received for process transition activities
Contract From Customer Liability,, Consideration Received From Transitions Activities
Contract From Customer Liability, Consideration Received From Transitions Activities
Other current assets
Other Current Assets [Member]
Benefits paid
Defined Benefit Plan, Plan Assets, Benefits Paid
Export-oriented units established, percentage
Export Oriented Units Established Percentage
Export oriented units established percentage.
Derivative instruments
Derivative Asset
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Liabilities and stockholders’ equity
Liabilities and Equity [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of right-of-use assets
Finance Lease, Right-of-Use Asset, Amortization
Investment in equity affiliate
Payments to Acquire Interest in Subsidiaries and Affiliates
Deferred tax liabilities, net
Deferred Income Tax Liabilities, Net
Derivatives and Hedge Accounting
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Security Exchange Name
Security Exchange Name
Intangible assets, net
Total intangible assets, net carrying amount
Intangible Assets, Net (Excluding Goodwill)
Rest of World
Rest of World
Rest Of World [Member]
Rest of World.
Plan assets at January 1, 2021
Plan assets at March 31, 2021
Defined Benefit Plan, Plan Assets, Amount
Trade names and trademarks
Trade names and trademarks (Finite lived)
Trademarks and Trade Names [Member]
Property and equipment, gross
Finance Lease, Right-of-Use Asset, before Accumulated Amortization
Selling and marketing expenses
Selling and Marketing Expense [Member]
Proceeds from borrowings
Proceeds from Issuance of Long-term Debt
Income from operations
Operating Income (Loss)
Property, Plant and Equipment based on Geographical Information
Long-lived Assets by Geographic Areas [Table Text Block]
Total current liabilities
Liabilities, Current
Deposits with statutory authorities
Deposit Assets
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Contracts with Customer, Receivables and Liabilities
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Weighted-Average Fair Value, Outstanding, at Beginning Balance (in dollars per share)
Weighted-Average Fair Value, Outstanding, at 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
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Commitments and contingencies (Refer to Note 24)
Commitments and Contingencies
Total lease payments
Finance Lease, Liability, Payment, Due
Discretionary contributions towards 401(k) plan, maximum percentage
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Other Income, net
Interest and Other Income [Text Block]
Acquisition of treasury stock
Payments for Repurchase of Common Stock
Assets
Assets [Abstract]
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Accounting Policies [Abstract]
Accounting Policies [Abstract]
2026 and thereafter
2026 and thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Office furniture and equipment
Furniture and Fixtures [Member]
Entity Address, State or Province
Entity Address, State or Province
Number, Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Operating cash outflows for operating leases
Operating Lease, Payments
Accounts payable
Accounts Payable, Current
Currency translation adjustments
Goodwill, Foreign Currency Translation Gain (Loss)
Expected return on plan assets, percentage
Defined Benefit Plan Expected Return On Plan Assets Percentage
Defined Benefit Plan Expected Return On Plan Assets Percentage
2024
Long-Term Debt, Maturity, Year Three
Accumulated Other Comprehensive Loss
Comprehensive Income (Loss) Note [Text Block]
Convertible Notes Payable
Notes
Convertible Notes Payable [Member]
Derivative instruments
Derivative Asset, Current
Retained earnings
Retained Earnings (Accumulated Deficit)
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Other Assets
Other Assets Disclosure [Text Block]
Unrealized gain/(loss) on cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Unamortized debt discount
Debt Instrument, Unamortized Discount
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
2022
2021
Lessee, Operating Lease, Liability, to be Paid, Year One
Acquisition of treasury stock (in shares)
Shares repurchased (in shares)
Treasury Stock, Shares, Acquired
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
2022
2021
Finance Lease, Liability, to be Paid, Year One
ExlService Holdings, Inc. Stockholders’ equity:
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
2025
2024
Lessee, Operating Lease, Liability, to be Paid, Year Four
Assets and Liabilities Measured at Fair Value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Preferred stock, $0.001 par value; 15,000,000 shares authorized, none issued
Preferred Stock, Value, Issued
Credit Agreement
Credit Agreement [Member]
Credit Agreement [Member]
Hedging Designation [Domain]
Hedging Designation [Domain]
Total lease cost
Lease, Cost
Total operating expenses
Operating expenses
Operating Expenses
Buildings
Building [Member]
Other comprehensive income/(loss):
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Network equipment and computers
Technology Equipment [Member]
Summary of Other Non-Current Liabilities
Other Noncurrent Liabilities [Table Text Block]
Other non-current liabilities
Other non-current liabilities
Other Liabilities, Noncurrent
Deferred tax assets, net
Deferred Income Tax Assets, Net
Financing cash outflows for finance leases
Finance Lease, Principal Payments
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets [Line Items]
Advances to suppliers
Prepaid Supplies
Stock-based compensation
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
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
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Revenues, net
Revenue from Contract with Customer, Excluding Assessed Tax
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Others
Other Assets, Miscellaneous, Current
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Weighted-average remaining lease term (in years)
Weighted-Average Remaining Lease Term [Abstract]
Weighted-Average Remaining Lease Term [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Amortization
Capitalized Contract Cost, Amortization
Geographical [Domain]
Geographical [Domain]
Capital commitments
Long-term Purchase Commitment, Amount
TT&L
Travel, Transportation and Logistics [Member]
Travel, Transportation and Logistics [Member]
Statement [Line Items]
Statement [Line Items]
Earnings per share attributable to ExlService Holdings Inc. stockholders:
Earnings Per Share, Basic and Diluted [Abstract]
Unrealized (gain) / loss on short term investments
Unrealized Gain (Loss) on Investments
Interest payable
Interest Payable, Current
Depreciation and Amortization
Depreciation And Amortization [Member]
Depreciation And Amortization [Member]
Number of classes of common stock outstanding
Number Of Classes Of Common Stock Outstanding
Number Of Classes Of Common Stock Outstanding
Statement [Table]
Statement [Table]
Charged against allowance
Accounts Receivable, Allowance for Credit Loss, Writeoff
Interest cost
Defined Benefit Plan, Interest Cost
Contract assets
Contract with Customer, Asset, before Allowance for Credit Loss, Current
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Credit Facility [Axis]
Credit Facility [Axis]
Preferred stock, issued (in shares)
Preferred Stock, Shares Issued
Finance Lease
Finance Lease [Abstract]
Finance Lease [Abstract]
2019 Repurchase Program
Two Thousand Nineteen Repurchase Program [Member]
Two Thousand Nineteen Repurchase Program [Member]
India
INDIA
Gain on cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax
Cash paid during the period for:
Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract]
Entity Small Business
Entity Small Business
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Accrued employee costs
Increase (Decrease) in Other Employee-Related Liabilities
Additions during the period
Accounts Receivable, Credit Loss Expense (Reversal) And Other Writeoffs
Accounts Receivable, Credit Loss Expense (Reversal) And Other Writeoffs
Operating Leases
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Unamortized debt issuance costs
Unamortized Debt Issuance Expense
Borrowings
Debt Disclosure [Text Block]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Accounts receivable, including unbilled receivables
Accounts Receivable, before Allowance for Credit Loss
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
Less : Accumulated amortization
Capitalized Computer Software, Accumulated Amortization
Summary of Fair Value of Foreign Currency Exchange Contracts
Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Amendment Flag
Amendment Flag
Schedule of Earnings Per Share, Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Weighted-average number of shares used in computing earnings per share attributable to ExlService Holdings Inc. stockholders:
Denominators:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Goodwill reallocation
Goodwill, Transfers
Leases
Lessee, Finance Leases [Text Block]
Summary of Company's Purchased Shares of its Common Stock, Including Commissions
Class of Treasury Stock [Table Text Block]
Number available for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Repayments of borrowings
Repayments of Debt
Net cash provided by /(used for) operating activities
Net Cash Provided by (Used in) Operating Activities
Contract Acquisition Costs
Contract Acquisition Costs [Member]
Contract Acquisition Costs [Member]
Entity Central Index Key
Entity Central Index Key
Dilutive effect of conversion premium on convertible notes (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Measurement Frequency [Axis]
Measurement Frequency [Axis]
BPM and related services
BPM and Related Services [Member]
BPM and Related Services [Member]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Unrealized (loss)/gain on cash flow hedges
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
United Kingdom
UNITED KINGDOM
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Other non-current liabilities
Other Noncurrent Liabilities [Member]
Long-term borrowings
Long-term Debt, Gross, Excluding Current Maturities
Long-term Debt, Gross, Excluding Current Maturities
Geographical [Axis]
Geographical [Axis]
Income tax effects relating to above
Income tax effects
Total Income tax benefit recognized in other comprehensive income / (loss)
Reclassification from AOCI, Current Period, Tax
Segments [Domain]
Segments [Domain]
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.
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Income taxes payable
Accrued Income Taxes, Noncurrent
Effect of foreign exchange gain
Gain (Loss) on Hedging Activity
Property, Plant and Equipment, Type [Axis]
Long-Lived Tangible Asset [Axis]
Schedule of Credit Facilities Carried an Effective Interest Rate
Schedule of Line of Credit Facilities [Table Text Block]
Schedule of restricted stock and RSU activity
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Income Statement Location [Axis]
Income Statement Location [Axis]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost [Line Items]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Income Statement Location [Domain]
Income Statement Location [Domain]
2023
2022
Lessee, Operating Lease, Liability, to be Paid, Year Two
Weighted average purchase price per share (in dollars per share)
Treasury Stock Acquired, Average Cost Per Share
Less: Accumulated depreciation and amortization
Accumulated depreciation
Finance Lease, Right-of-Use, Accumulated Amortization
Finance Lease, Right-of-Use, Accumulated Depreciation
Foreign exchange contracts outstanding
Derivative, Notional Amount
Amortization expense
Amortization of Intangible Assets
Foreign currency exchange contracts
Foreign Exchange Contract [Member]
Schedule of components of lease cost
Lease, Cost [Table Text Block]
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Advance income tax, net
Prepaid Taxes
2024
2023
Lessee, Operating Lease, Liability, to be Paid, Year Three
Capitalized Contract Cost [Domain]
Capitalized Contract Cost [Domain]
Other assets
Other Assets, Noncurrent
Plan Name [Axis]
Plan Name [Axis]
Operating Lease
Operating Leases [Abstract]
Operating Leases [Abstract]
Segment and Geographical Information
Segment Reporting Disclosure [Text Block]
Operating cash outflows for finance leases
Finance Lease, Interest Payment on Liability
Total assets
Assets
Related Party Disclosures
Related Party Transactions Disclosure [Text Block]
Others, net
Other Miscellaneous Nonoperating Income (Expense)
Other Miscellaneous Nonoperating Income (Expense)
Number, Outstanding, at Beginning Balance (in shares)
Number, Outstanding, at Ending Balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Title of 12(b) Security
Title of 12(b) Security
Schedule of Accrued Expenses and Other Current Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Finance Leases
Finance Lease, Liability, Payment, Due [Abstract]
Total
Finite-Lived Intangible Assets, Net
Long-lived assets
Long-Lived Assets
Income taxes payable, net
Accrued Income Taxes, Current
Contract liabilities:
Contract with Customer, Liability [Abstract]
Cost of revenues
Cost of Sales [Member]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Schedule of maturities of lease liabilities
Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]
Interest accrued
Interest Payable
Interest expense
Interest Expense
Depreciation and amortization expense
Depreciation, Depletion and Amortization
Product and Service [Axis]
Product and Service [Axis]
Total liabilities
Liabilities
Unrecognized tax benefits
Liability for Uncertainty in Income Taxes, Noncurrent
Weighted average purchase price per share (in dollars per share)
Accelerated Share Repurchases, Final Price Paid Per Share
Cost not yet recognized, period for recognition
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Income Tax Recognized in Other Comprehensive Income
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
2025
Finance Lease, Liability, to be Paid, Year Five
Less: Imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total Non-United States
Non-US [Member]
Weighted-Average Remaining Contractual Life, Vested and exercisable at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
2023
Long-Term Debt, Maturity, Year Two
Emerging Business
Emerging Business [Member]
Emerging Business [Member]
Schedule of finite lived Intangible Assets useful lives
Schedule Of Finite Lived Intangible Assets Useful Lives Table [Table Text Block]
Schedule of finite lived intangible assets useful lives.
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
F&A
Finance and Accounting [Member]
Finance and Accounting [Member]
Deferred revenue (consideration received in advance)
Contract with Customer, Liability, Revenue Recognized
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Level 1
Fair Value, Inputs, Level 1 [Member]
Deferred contract fulfillment costs
Deferred Contract Acquisition Costs NonCurrent
Deferred Contract Acquisition Costs NonCurrent
Analytics services
Analytics Services [Member]
Analytics Services [Member]
Unrealized (loss)/gain recognized in AOCI
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Accounts payable
Increase (Decrease) in Accounts Payable
Percentage of target shares earned
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
Maximum outstanding term of the cash flow hedges
Maximum Length of Time Hedged in Cash Flow Hedge
Client liabilities
Broker-Dealer, Payable to Customer
Insurance
Insurance [Member]
Insurance [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Other assets
Other Assets
Deferred contract fulfillment costs
Deferred Contract Acquisition Costs Current
Deferred Contract Acquisition Costs Current
Capitalized Contract Cost [Axis]
Capitalized Contract Cost [Axis]
Accounts receivable not billed
Unbilled Contracts Receivable
Adjustments to reconcile net income to net cash provided by / (used for) operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Interest on lease liabilities
Finance Lease, Interest Expense
Derivative financial instruments
Foreign Currency Contract, Asset, Fair Value Disclosure
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
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]
Schedule of Other Current Assets
Schedule of Other Current Assets [Table Text Block]
Common stock, outstanding (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Common Stock, Shares, Outstanding
Investment in equity affiliate
Equity Method Investments
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Fair value of convertible notes
Convertible Debt, Fair Value Disclosures
Revolving Credit Facility
Revolving Credit Facility
Revolving Credit Facility [Member]
Other Current Assets
Other Current Assets [Text Block]
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Philippines
PHILIPPINES
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
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
Outstanding letters of credit
Letters of Credit Outstanding, Amount
Common stock, authorized (in shares)
Common Stock, Shares Authorized
Dilutive effect of share based awards (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Revenues Based on Geographical Information
Revenue from External Customers by Geographic Areas [Table Text Block]
Proceeds from exercise of stock options
Proceeds from Stock Options Exercised
Revenues and Cost of Revenues for Company's Reportable Segments
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Reclassification adjustments
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Derivative financial instruments
Foreign Currency Contracts, Liability, Fair Value Disclosure
Income Statement [Abstract]
Income Statement [Abstract]
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
Operating lease liabilities, less current portion
Operating lease liabilities - Non-current
Operating Lease, Liability, Noncurrent
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Current assets:
Assets, Current [Abstract]
Accrued capital expenditures
Capital Expenditure, Liability, Current
Capital Expenditure, Liability, Current
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Accrued capital expenditures
Capital Expenditure, Liability, Noncurrent
Capital Expenditure, Liability, Noncurrent
Software
Software and Software Development Costs [Member]
2024
2023
Finance Lease, Liability, to be Paid, Year Three
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Change in Plan Assets
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]
2022
Long-Term Debt, Maturity, Year One
Purchases of property and equipment
Payments to Acquire Property, Plant, and Equipment
City Area Code
City Area Code
Cash payments for amounts included in the measurement of lease liabilities :
Cash Flow, Operating Activities, Lessee [Abstract]
Document Period End Date
Document Period End Date
Reduction in lease liabilities
Increase (Decrease) In Operating Lease Liabilities
Increase (Decrease) In Operating Lease Liabilities
Interest expense on the Notes
Interest expense on Notes
Interest Expense, Related Party
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Abstract]
Actual return
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Loss from equity-method investment
Income (Loss) from Equity Method Investments
Lease deposits
Security Deposit
Income before income tax expense and earnings from equity affiliates
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Reclassification to net income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Hedging Designation [Axis]
Hedging Designation [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Term deposits
Time Deposits, at Carrying Value
Total consideration
Stock Repurchased During Period, Value
Gains / (losses) recognized during the period
Other Comprehensive Income (Loss), before Reclassifications, before Tax
2025
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Four
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Stock-based compensation expense
Share-based Payment Arrangement, Noncash Expense
2021 (April - December)
Long-Term Debt, Maturity, Remainder of Fiscal Year
Total consideration
Payment, Tax Withholding, Share-based Payment Arrangement
Derivatives designated as hedging instruments
Designated as Hedging Instrument [Member]
Aggregate disputed amount 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
Cover [Abstract]
Cover [Abstract]
Market Condition Based PRSUs
Market Condition Based Performance Restricted Stock Units [Member]
Market Condition Based Performance Restricted Stock Units [Member]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
2024
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Three
Estimated useful lives
Property, Plant and Equipment, Useful Life
Total
Debt outstanding
Long-term Debt
Goodwill [Line Items]
Goodwill [Line Items]
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Leases
Lessee, Operating Leases [Text Block]
Cost of revenues
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Service cost
Defined Benefit Plan, Service Cost
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
Cost of revenues
Cost of Goods and Services Sold
Customer relationships
Customer relationships
Customer Relationships [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Equity Components [Axis]
Equity Components [Axis]
Restricted Stock Units
Restricted Stock [Member]
Weighted-average discount rate
Weighted-Average Discount Rate [Abstract]
Weighted-Average Discount Rate [Abstract]
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement [Abstract]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Minimum
Minimum [Member]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Movement in Allowance for Expected Credit Loss
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
Right-of-use asset under finance lease, after accumulated depreciation and amortization
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Land
Land [Member]
Revenues and cost of revenues for Company's reportable segments [Line Items]
Revenue from External Customer [Line Items]
Current portion of operating lease liabilities
Operating lease liabilities - Current
Operating Lease, Liability, Current
Unrecognized compensation cost
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Right-of-use assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Units vested for which the underlying common stock is yet to be issued (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
Summary of Effect of Foreign Currency Exchange Contracts on Consolidated Statements of Income
Derivative Instruments, Gain (Loss) [Table Text Block]
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
Amortization of actuarial loss, gross of tax
Defined Benefit Plan, Amortization of Gain (Loss)
Receivables from statutory authorities
Service Taxes Receivable, Current
Service Taxes Receivable, Current
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Entity Interactive Data Current
Entity Interactive Data Current
Net gratuity cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
United States
United States
UNITED STATES
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
Restrictions on Cash and Cash Equivalents
Restrictions on Cash and Cash Equivalents [Table Text Block]
Capital Structure
Stockholders' Equity Note Disclosure [Text Block]
Schedule of stock options activity
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Weighted average life of intangible assets
Finite-Lived Intangible Assets, Remaining Amortization Period
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
2021 (April 1 - December 31)
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year
Schedule of Company's Contribution Plan
Defined Contribution Plan Disclosures [Table Text Block]
Additional paid-in capital
Additional Paid in Capital, Common Stock
Amortization of operating lease right-of-use assets
Amortization Of Operating Lease Right Of Use Asset
Amortization Of Operating Lease Right Of Use Asset
Entity Registrant Name
Entity Registrant Name
Impairment loss in relation to costs capitalized
Capitalized Contract Cost, Impairment Loss
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Operating lease
Operating Lease, Weighted Average Discount Rate, Percent
Assets
Assets, Fair Value Disclosure [Abstract]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Proceeds from sale of property and equipment
Proceeds from Sale of Property, Plant, and Equipment
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]
Unamortized debt issuance costs
Debt Issuance Costs, Net
Increase (Decrease) In Capitalized Contract Costs [Roll Forward]
Increase (Decrease) In Capitalized Contract Costs [Roll Forward]
Increase (Decrease) In Capitalized Contract Costs [Roll Forward]
Contract Fulfillment Costs
Contract Fulfillment Costs [Member]
Contract Fulfillment Costs [Member]
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]
Total intangible assets, gross carrying amount
Intangible Assets, Gross (Excluding Goodwill)
Less: Imputed interest
Finance Lease, Liability, Undiscounted Excess Amount
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Motor vehicles
Vehicles [Member]
Convertible senior notes, interest rate
Debt Instrument, Interest Rate, Effective Percentage
Derivatives not designated as hedging instruments
Not Designated as Hedging Instrument [Member]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Accounts receivable, net
Accounts receivable, net
Accounts receivable, net
Accounts Receivable, after Allowance for Credit Loss, Current
Derivative instruments
Derivative Instruments and Hedges, Liabilities
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
Depreciation and amortization expense
Depreciation and amortization expense
Depreciation, Depletion and Amortization, Nonproduction
Schedule of Cash and Cash Equivalents
Schedule of Cash and Cash Equivalents [Table Text Block]
Restricted cash
Restricted cash (non-current)
Restricted Cash, Noncurrent
Schedule of Interest Expense Debt Recognized
Schedule of Interest Expense Debt [Table Text Block]
Schedule of Interest Expense Debt
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Summary of Other Income, net
Interest and Other Income [Table Text Block]
Prepaid expenses
Other Prepaid Expense, Current
Accrued Expenses and Other Current Liabilities
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
Operating lease liabilities
Increase Decrease in Operating Lease Liability
Increase Decrease in Operating Lease Liability
Goodwill
Beginning Balance
Ending Balance
Goodwill
Document Transition Report
Document Transition Report
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Numerators:
Net Income (Loss) Attributable to Parent [Abstract]
Derivative asset
Derivative Asset, Fair Value, Gross Asset
Opening Balance
Closing Balance
Capitalized Contract Cost, Gross
Advance income tax, net
Increase (Decrease) in Income Taxes Payable
Debt instrument face amount
Debt Instrument, Face Amount
Level 2
Fair Value, Inputs, Level 2 [Member]
Other current assets
Other current assets
Other Assets, Current
Document Quarterly Report
Document Quarterly Report
Liabilities
Liabilities, Fair Value Disclosure [Abstract]
Schedule of Goodwill
Schedule of Goodwill [Table Text Block]
Number of Options, Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Accrued expenses and other current liabilities
Accrued Expenses And Other Current Liabilities [Member]
Accrued expenses and other current liabilities.
General and administrative expenses
General and Administrative Expense [Member]
Equity [Abstract]
Equity [Abstract]
Total
Assets, Fair Value Disclosure
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
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
Deferred revenue
Contract with Customer, Liability, Current
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
Income tax benefit on amortization of actuarial loss
Reclassification adjustment for retirement benefits
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax
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
Credit Facility [Domain]
Credit Facility [Domain]
Derivative Contract [Domain]
Derivative Contract [Domain]
Schedule of estimated future amortization of Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Debt instrument, conversion price (in dollars per share)
Debt Instrument, Convertible, Conversion Price
Diluted (in shares)
Diluted weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Basic (in dollars per share)
Earnings Per Share, Basic
Other Income and Expenses [Abstract]
Other Income and Expenses [Abstract]
Contract assets
Contract with Customer, Asset, before Allowance for Credit Loss, Noncurrent
Number of operating segments
Number of Operating Segments
Entity File Number
Entity File Number
Number, Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Retirement benefits
Liability, Defined Benefit Plan, Noncurrent
Operating lease
Operating Lease, Weighted Average Remaining Lease Term
Selling and marketing expenses
Selling and marketing expenses
Selling and Marketing Expense
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [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]
Net cash (used for)/provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Aggregate Intrinsic Value, Vested and exercisable at end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Stock-based compensation expenses
Share-based Payment Arrangement, Expense
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Common stock, $0.001 par value; 100,000,000 shares authorized, 39,273,989 shares issued and 33,526,889 shares outstanding as of March 31, 2021 and 38,968,052 shares issued and 33,559,434 shares outstanding as of December 31, 2020
Common Stock, Value, Issued
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Document Fiscal Year Focus
Document Fiscal Year Focus
Restricted cash
Restricted cash (current)
Restricted Cash, Current
Contract Acquisition and Fulfillment Costs
Capitalized Contract Cost [Table Text Block]
Current portion of long-term borrowings
Long-term Debt, Current Maturities
Entity Current Reporting Status
Entity Current Reporting Status
2025
2024
Finance Lease, Liability, to be Paid, Year Four
Interest and dividend income
Investment Income, Interest and Dividend
Amortization expense
Capitalized Computer Software, Amortization
Retirement Benefits [Abstract]
Retirement Benefits [Abstract]
Others
Other Assets, Miscellaneous
Principal payments of finance lease liabilities
Repayments of Long-term Capital Lease Obligations
Total comprehensive income/(loss)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Mutual funds
Money Market And Mutual Fund Fair Value Disclosure
Money market and mutual fund fair value disclosure.
Bank guarantee issued
Bank Guarantee Issued
Bank Guarantee Issued
Weighted-Average Fair Value, 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
Derivative instruments
Derivative Instruments and Hedges, Liabilities, Noncurrent
Common stock, issued (in shares)
Common Stock, Shares, Issued
Cash and cash equivalents
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Revenue from External Customers by Products and Services [Table]
Revenue from External Customers by Products and Services [Table]
Restricted Stock and Restricted Stock Units
Restricted Stock and Restricted Stock Units [Member]
Restricted Stock and Restricted Stock Units [Member]
Amounts paid as deposits in respect of contingencies
Amounts Paid As Deposits In Respect Of Contingencies
Amounts paid as deposits in respect of Contingencies.
Total operating lease liabilities
Present value of lease liabilities
Operating Lease, Liability
Additional authorized amount
Stock Repurchase Program, Additional Authorized Amount
Stock Repurchase Program, Additional Authorized Amount
Internally developed software, net
Capitalized Computer Software, Net
Long-term borrowings, less current portion
Long-term borrowings, less current portion
Long-term Debt, Excluding Current Maturities
2022
Finite-Lived Intangible Assets, Amortization Expense, Next Rolling Twelve Months
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Amortization of actuarial loss, net of tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Income Taxes
Income Tax Disclosure [Text Block]
Entity Address, City or Town
Entity Address, City or Town
Accrued employee costs
Employee-related Liabilities, Current
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Operating lease
Operating Lease, Cost
Deferred taxes benefit / (expense) recognized on:
Deferred Income Taxes and Tax Credits [Abstract]
2025
Lessee, Operating Lease, Liability, to be Paid, Year Five
Total including shares held in treasury
Stockholders Equity Including Shares Held In Treasury
Total stockholders' equity including shares held in treasury.
Other assets
Other Assets [Member]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
General and administrative expenses
General and administrative expenses
General and Administrative Expense
Weighted average potentially dilutive considered anti-dilutive and not included in computing diluted earnings per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Proceeds from redemption of investments
Proceeds from Sale, Maturity and Collection of Investments
Credit Facilities [Line Items]
Line of Credit Facility [Line Items]
Finance lease
Finance Lease, Weighted Average Remaining Lease Term
Schedule of supplemental cash flow informaton 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]
Others, net
Other Noncash Income (Expense)
Other Non-Current Liabilities
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets [Axis]
Equity Component [Domain]
Equity Component [Domain]
Reduction in lease assets
Increase (Decrease) In Operating Lease Assets
Increase (Decrease) In Operating Lease Assets
Accrued expenses
Accrued Expenses Current
Accrued expenses.
Gross profit
Gross Profit
Property and equipment, net
Property, Plant and Equipment, Net
Effect of exchange rate changes
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)
Capital work in progress
Construction in Progress [Member]
Entity Tax Identification Number
Entity Tax Identification Number
Stock Based Compensation
Share-based Payment Arrangement [Text Block]
Net income attributable to ExlService Holdings, Inc. stockholders
Net income
Net Income (Loss) Attributable to Parent
Finance lease liabilities - Non-current
Finance Lease, Liability, Noncurrent
Change in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Other current liabilities
Other Liabilities, Current
2021 (April 1 - December 31)
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
New Credit Agreement
New Credit Agreement [Member]
New Credit Agreement [Member]
Total other comprehensive loss
Other comprehensive loss
Other Comprehensive Income (Loss), Net of Tax
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]
Leases [Abstract]
Summary of Significant Accounting Policies
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Total current assets
Assets, Current
Current Fiscal Year End Date
Current Fiscal Year End Date
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
Operating expenses:
Operating Expenses [Abstract]
Owned assets, gross
Property, Plant and Equipment, Gross, Excluding Capital Leased Assets
Capitalized Contract Cost [Table]
Capitalized Contract Cost [Table]
Earnings per share attributable to ExlService Holdings, Inc. stockholders:
Earnings Per Share [Abstract]
Total finance lease liabilities
Present value of lease liabilities
Finance Lease, Liability
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Unrealized foreign exchange (gain), net
Foreign Currency Transaction Gain (Loss), Unrealized
Compensation Related Costs [Abstract]
Retirement benefits
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Cost
Capitalized Computer Software, Gross
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Developed technology
Developed technology
Developed Technology Rights [Member]
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]
Document Fiscal Period Focus
Document Fiscal Period Focus
2026 and thereafter
Finance Lease, Liability, to be Paid, after Year Five
Deferred transition revenue
Contract with Customer, Liability, Noncurrent
Owned assets, net
Property, Plant and Equipment, Net, Excluding Capital Leased Assets
Employer contribution
Defined Benefit Plan, Plan Assets, Contributions by Employer
Right-of-use assets under finance leases:
Capital Leases, Balance Sheet, Assets by Major Class, Net [Abstract]
Supplemental disclosure of cash flow information:
Supplemental Cash Flow Information [Abstract]
Other liabilities
Other Sundry Liabilities, Noncurrent
Entity Filer Category
Entity Filer Category
Schedule of costs related to company's stock-based compensation plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
Common Stock
Common Stock [Member]
Foreign currency translation (loss)/gain
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Product and Service [Domain]
Product and Service [Domain]
Property, Plant and Equipment, Type [Domain]
Long-Lived Tangible Asset [Domain]
Impairment charges
Capitalized Computer Software, Impairments
Contributions to the defined benefit plans
Defined Contribution Plan, Cost
Finance lease
Finance Lease, Weighted Average Discount Rate, Percent
Schedule of Property and Equipment
Property, Plant and Equipment [Table Text Block]
Class of Treasury Stock [Table]
Class of Treasury Stock [Table]
Leasehold improvements
Leasehold Improvements [Member]
Finite-lived intangible assets, gross carrying amount
Finite-Lived Intangible Assets, Gross
2026 and thereafter
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Five
Interest rate
Debt Instrument, Interest Rate, Stated Percentage
Translation adjustment
Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation
Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation
Assets acquired under finance lease
Lease Obligation Incurred
Allowance for expected credit losses
Accounts Receivable, Credit Loss Expense (Reversal)
Foreign currency translation loss
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax
Schedule of Related Party Transactions
Schedule of Related Party Transactions [Table Text Block]
Supplemental disclosure of non-cash investing and financing activities:
Noncash Investing and Financing Items [Abstract]
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
Interest accrued on term deposits
Interest Receivable, Current
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Net (decrease)/increase in cash, cash equivalents and restricted cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Foreign exchange gain, interest expense and other income, net
Nonoperating Income (Expense)
Healthcare
Healthcare [Member]
Healthcare
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Accumulated depreciation
Property and equipment, net
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Schedule of maturities of lease liabilities
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Employee Stock Option
Share-based Payment Arrangement, Option [Member]
Basis of Preparation
Basis of Accounting, Policy [Policy Text Block]
Equity, Class of Treasury Stock [Line Items]
Equity, Class of Treasury Stock [Line Items]
Basic (in shares)
Basic weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
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
Foreign currency translation loss
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Treasury stock (in shares)
Treasury Stock, Shares
Derivatives in cash flow hedging relationships
Cash Flow Hedging [Member]
Line of credit interest rate during period
Line of Credit Facility, Interest Rate During Period
Plan Name [Domain]
Plan Name [Domain]
Revenues, net
Revenue from Contract with Customer [Text Block]
Interest
Interest Paid, Excluding Capitalized Interest, Operating Activities
Payable to statutory authorities
Statutory Authority Payables, Current
Statutory Authority Payables, Current
Total equity
Beginning balance
Ending balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Right-of-use assets obtained in exchange for new operating lease liabilities
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Less: Accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Excluding Capital Leased Assets
Organization
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Retirement benefits
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
2021 (April 1 - December 31)
Finance Lease, Liability, to be Paid, Remainder of Fiscal Year
2023
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two
Foreign exchange gain, net
Loss recognized in unaudited consolidated statements of income
Foreign exchange gain, net
Foreign Currency Transaction Gain (Loss), before Tax
Income tax expense
Income tax expense relating to above
Income Tax Expense (Benefit)
Schedule of performance based stock awards activity
Share-based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block]
Indefinite lived intangible assets [Abstract]
Indefinite lived intangible assets [Abstract]
Indefinite lived intangible assets [Abstract]
Income taxes, net of refunds
Income Taxes Paid, Net
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
Contribution to the 401(k) Plan
Defined Contribution Plan, Employer Discretionary Contribution Amount
Schedule of Maturities of Long-term Debt
Schedule of Maturities of Long-term Debt [Table Text Block]
Unrealized gain / (loss) on cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax
Total
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Accrued expenses and other current liabilities
Accrued expenses and other current liabilities
Accrued Liabilities, Current
Diluted (in dollars per share)
Earnings Per Share, Diluted
Finance lease liabilities - Current
Finance Lease, Liability, Current
Local Phone Number
Local Phone Number
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of amortization of Intangible Assets
Finite-lived Intangible Assets Amortization Expense [Table Text Block]
Aggregate Intrinsic Value, Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Cash, Cash Equivalents and Restricted Cash
Cash and Cash Equivalents Disclosure [Text Block]
Schedule of indefinite lived Intangible Assets
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Total
Long-term Debt, Gross
Schedule of Company's Debt Position
Schedule of Long-term Debt Instruments [Table Text Block]
Depreciation and amortization expense
Depreciation
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Two
Performance Based Stock Awards
Performance Based Stock Awards [Member]
Performance Based Stock Awards [Member]
Deferred revenue (consideration received in advance)
Contract with Customer, Liability
Other assets
Increase (Decrease) in Other Operating Assets
Entity Emerging Growth Company
Entity Emerging Growth Company
Stock issued against stock-based compensation plans
Stock Issued During Period, Value, Stock Options Exercised
Trade names and trademarks
Indefinite-lived Intangible Assets (Excluding Goodwill)
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Deferred income tax (benefit)/expense
Deferred Income Tax Expense (Benefit)
Reclassification adjustment for cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
Derivative liability
Derivative Liability, Fair Value, Gross Liability
Revenue Based PRSUs
Revenue Based Performance Restricted Stock Units [Member]
Revenue Based Performance Restricted Stock Units [Member]
Line of credit, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Award Type [Axis]
Award Type [Axis]
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]
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Maximum
Maximum [Member]
Preferred stock, authorized (in shares)
Preferred Stock, Shares Authorized
Gain on sale and mark-to-market of mutual funds
Gain (Loss) on Investments
Fair Value Measurements
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]
Retained Earnings
Retained Earnings [Member]
Effective tax rate, current income tax expense (benefit)
Effective Income Tax Rate Reconciliation, Percent
Components of Net Periodic Benefit Cost
Schedule of Net Benefit Costs [Table Text Block]
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]
Net cash (used for) /provided by investing activities
Net Cash Provided by (Used in) Investing Activities
Purchase of investments
Payments to Acquire Investments
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]
Weighted-Average Remaining Contractual Life
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Less: Allowance for expected credit loss
Balance at the beginning of the period
Balance at the end of the period
Accounts Receivable, Allowance for Credit Loss
Analytics
Analytics [Member]
Analytics [Member]
Award Type [Domain]
Award Type [Domain]
Liabilities, Noncurrent [Abstract]
Liabilities, Noncurrent [Abstract]
Accrued expenses and other liabilities
Increase (Decrease) in Other Accounts Payable and Accrued Liabilities
Schedule of Other Assets
Schedule of Other Assets [Table Text Block]
Trading Symbol
Trading Symbol
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Property and Equipment, net
Property, Plant and Equipment Disclosure [Text Block]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Less: 5,747,100 shares as of March 31, 2021 and 5,408,618 shares as of December 31, 2020, held in treasury, at cost
Treasury Stock, Value
Earnings Per Share
Earnings Per Share [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Entity Shell Company
Entity Shell Company
Shares repurchased (in shares)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Recurring
Fair Value, Recurring [Member]
All Other
Other Operations Management [Member]
Other Operations Management [Member]
2023
2022
Finance Lease, Liability, to be Paid, Year Two
Recent Accounting Pronouncements and Recently Adopted Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Short-term investments
Short-term Investments