| Summary of Significant Accounting Policies (Policies) | 12 Months Ended |
| Dec. 31, 2019 |
| Accounting Policies [Abstract] | |
| Basis of Preparation | The consolidated financial statements have been prepared in conformity with United States generally accepted accounting principles (“U.S. GAAP”). |
| Principles of Consolidation | The accompanying financial statements have been prepared on a consolidated basis and reflect the financial statements of ExlService Holdings and all of its subsidiaries and includes the Company's share in the results of its associates. The standalone financial statements of subsidiaries are fully consolidated on a line-by-line basis. Intra-group balances and transactions, and income and expenses arising from intra-group transactions, are eliminated while preparing those financial statements. Accounting policies of the respective individual subsidiary and associate are aligned wherever necessary, so as to ensure consistency with the accounting policies that are adopted by the Company under U.S. GAAP. The Company’s investments in equity affiliates are initially recorded at cost and any excess cost over proportionate share of the fair value of the net assets of the investee at the acquisition date is recognized as goodwill. The proportionate share of net income or loss of the investee is recognized in the consolidated statements of income. |
| Use of Estimates | The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the consolidated statements of income during the reporting period. Although these estimates are based on management’s best assessment of the current business environment, actual results may be different from those estimates. The significant estimates and assumptions that affect the consolidated financial statements include, but are not limited to, allowance for doubtful receivables, expected recoverability from customers with contingent fee arrangements, recoverability of dues from statutory authorities, assets and obligations related to employee benefit plans, deferred tax valuation allowances, income-tax uncertainties and other contingencies, valuation of derivative financial instruments, assumptions used to calculate stock-based compensation expense, assumptions used to determine the incremental borrowing rate to calculate lease liabilities and right-of-use (“ROU”) assets, lease term to calculate lease cost, depreciation and amortization periods, purchase price allocation, recoverability of long-lived assets including goodwill and intangibles, and estimated costs to complete fixed price contracts. |
| Foreign Currency Translation | The functional currency of each entity in the Company is its respective local country currency which is also the currency of the primary economic environment in which it operates except for the entities in Mauritius which use the U.S. dollar as its functional currency. Transactions in foreign currencies are initially recorded into functional currency at the rates of exchange prevailing on the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are remeasured into functional currency at the rates of exchange prevailing at the balance sheet date. Non-monetary assets and liabilities are remeasured to the functional currency of the subsidiary at exchange rates that prevailed on the date of inception of the transaction. All foreign exchange gains and losses arising on re-measurement are recorded in the accompanying consolidated statements of income. The assets and liabilities of the subsidiaries for which the functional currency is other than the U.S. dollar are translated into U.S. dollars, the reporting currency, at the rate of exchange prevailing on the balance sheet date. Revenues and expenses are translated into U.S. dollars at the exchange rates prevailing on the last business day of each month, which approximates the average monthly exchange rate. Resulting translation adjustments are included in accumulated other comprehensive loss in the consolidated balance sheets. |
| Revenue Recognition | Revenue is recognized when services are provided to the Company's customers, in an amount that reflects the consideration which the Company expect to be entitled to in exchange for the services provided. Revenue is measured based on consideration specified in a contract with a customer and excludes discounts and amounts collected on behalf of third parties. The Company recognizes revenue when it satisfies a performance obligation by providing services to a customer. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction, that are collected by the Company from a customer, are excluded from revenue. Adoption of Financial Accounting Standards Board Accounting Standards Update (“ASU”) No. 2014-09 Topic 606, Revenue from Contracts with Customers (“Topic 606”) On January 1, 2018, the date of initial application, the Company adopted Topic 606 using the modified retrospective method by recognizing the cumulative effect of initially applying Topic 606 as an adjustment to the opening balance of retained earnings, resulting in an increase of $454 , primarily due to new contract acquisition costs. The initial application scopes in those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning January 1, 2018 are presented under Topic 606. The prior period consolidated financial statements have not been retrospectively adjusted and continue to be reported under the accounting standards in effect for those periods. The key area impacted upon adoption of Topic 606 relates to the accounting for sales commissions costs. Specifically, under Topic 606 a portion of sales commission costs have been recorded as an asset and recognized as an operating expense on a straight-line basis over the expected period of benefit. Prior to adoption, the Company was expensing sales commission costs as incurred. Nature of Services The Company derives its revenues from operations management and analytics services. The Company operates in the business process management (“BPM”) industry providing operations management and analytics services helping businesses enhance revenue growth and improve profitability. The Company provides BPM or “operations management” services, which typically involve transfer to the Company of business operations of a client, after which it administers and manages those operations for its client on an ongoing basis. The Company also provides industry-specific digital transformational services related to operations management services, and analytics services that focus on driving improved business outcomes for clients by generating data-driven insights across all parts of their business. The Company also provides care optimization and reimbursement optimization services, for its clients through its healthcare analytics solutions and services. The Company offers integrated solutions to help its clients with cost containment by leveraging technology platforms, customizable and configurable analytics and expertise in healthcare reimbursements to help clients enhance their claims payment accuracy. Type of Contracts i. a) Revenues under time-and-material, transaction and outcome-based contracts are recognized as the services are performed. When the terms of the client contract specify service level parameters that must be met (such as turnaround time or accuracy), the Company monitors such service level parameters to determine if any service credits or penalties have been incurred. Revenues are recognized net of any penalties or service credits that are due to a client. b) Revenues from arrangements involving subcontracting, either in part or whole of the assigned work, are recognized after Company’s assessment of “Principal versus agent considerations”. The Company evaluates whether it is in control of the services before the same are transferred to the customer to assess whether it is principal or agent in the arrangement. Revenues are recognized on a gross basis if the Company is in the capacity of principal and on a net basis if it falls in the capacity of an agent. ii. Revenues for the Company’s fixed-price contracts are recognized using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the client. The use of this method requires significant judgment to estimate the cost required to complete the contracted scope of work, including assumptions and estimates relative to the length of time to complete the project and the nature and complexity of the work to be performed and resources engaged. The Company regularly monitors these estimates throughout the execution of the project and records changes in the period in which a change in an estimate is determined. If a change in an estimate results in a projected loss on a project, such loss is recognized in the period in which it is first identified. iii. Revenue from the Company’s software and related services contracts, which are not significant, are primarily related to annual maintenance renewals or incremental license fees for additional users. Maintenance revenues are generally recognized on a straight-line basis over the annual contract term. Fees for incremental license without any associated services are recognized upon delivery of the related incremental license. To a lesser extent, certain contracts may include offerings such as sale of licenses, which may be perpetual or subscription-based. The Company recognizes revenue from distinct perpetual licenses upfront at a point in time when the software is made available to the client, whereas for a combined software license and services performance obligation, revenue is recognized over the period that the services are performed. Revenue from distinct subscription based licenses is recognized over the period of service performed. Revenue from any associated maintenance or ongoing support services is recognized over the term of the contract. iv. Revenues from reimbursement optimization services having contingent fee arrangements are recognized by the Company at the point in time when a performance obligation is satisfied, which is when it identifies an overpayment claim. In such contracts, the Company’s consideration is contingent upon the actual collections made by its customers and net of any subsequent retraction claims. Based on guidance on “variable consideration” in Topic 606, the Company uses its historical experience and projections to determine the expected recoveries from its customers and recognizes revenue based upon such expected recoveries. Any adjustment required due to change in estimates are recorded in the period in which such change is identified. Modification to Contracts The Company’s contracts may be modified to add, remove or change existing performance obligations. The accounting for modifications to contracts involves assessing whether the services added to an existing contract are distinct and whether the pricing is at a standalone selling price. Services added that are distinct and at standalone selling price are accounted on a prospective basis either as a separate contract, or as a termination of existing contract and creation of a new contract. Arrangements with Multiple Performance Obligations The Company’s contracts with customers do not generally bundle different services together except for software and related services contracts, which are not significant, involving implementation services and post contract maintenance services. In such software and related services contracts, revenue is allocated to each performance obligation based on the relative standalone selling price. Variable Consideration Variability in the transaction price arises primarily due to service level agreements, pre-payment and volume discounts. The Company considers its experience with similar transactions and expectations regarding the contract in estimating the amount of variable consideration that should be recognized during a period. The Company believes that the expected value method is most appropriate for determining the variable consideration since the Company has large number of contracts with similar nature of transactions/services. Allocation of Transaction Price to Performance Obligations The transaction price is allocated to performance obligations on a relative standalone selling price basis. Standalone selling prices are estimated by reference to the total transaction price less the sum of the observable standalone selling prices of other goods or services promised in the contract. In assessing whether to allocate variable consideration to a specific part of the contract, the Company considers the nature of the variable payment and whether it relates specifically to its efforts to satisfy a specific part of the contract. Unbilled Receivables Unbilled receivables represents revenues recognized for services rendered between the last billing date and the balance sheet date. Unbilled receivables also include revenues recognized from reimbursement optimization services where the Company identify an overpayment claim. In such contracts, Company’s consideration is contingent upon and collectable only when the actual collections are made by its customers. Based on guidance on “variable consideration” in Topic 606, Company use its historical experience and projections to determine the expected recoveries from its customers and recognize revenue and receivables based upon such expected recoveries. Accordingly, the amounts for which services have been performed and for which invoices have not been issued to customers on the balance sheet date, (i.e. unbilled receivables) are presented under accounts receivable. Deferred Revenue and Contract Fulfillment Costs The Company has contract liabilities (deferred revenue) consisting of advance billings and billing in excess of revenues recognized. Deferred revenue also includes the amount for which services have been rendered but other conditions of revenue recognition are not met, for example where the Company does not have an enforceable contract. Further, the Company also defer revenues attributable to certain process transition activities, with respect to its customers where such activities do not represent separate performance obligations. Revenues related to such transition activities are classified under “Deferred Revenue” and “other non-current liabilities” in the Company’s consolidated balance sheets and are recognized ratably over the period during which the related services are performed. Costs related to such transition activities are contract fulfillment costs, and thereby classified under “Other Current Assets” and “Other Assets” in the consolidated balance sheets, and are recognized over the estimated expected period of benefit, under Cost of Revenues in the consolidated statements of income. Contract Acquisition Costs Direct and incremental costs incurred for acquiring contracts, such as sales commissions are contract acquisition costs and thereby classified under “Other Current Assets” and “Other Assets” in the consolidated balance sheets. Such costs are amortized over the expected period of benefit and recorded under Selling and marketing expenses in the consolidated statements of income. Upfront Payment Made to Customer Upfront payments, in nature of deal signing discount or deal signing bonuses made to customers are contract assets and classified under “Other Current Assets and Other Assets” in the consolidated balance sheets. Such costs are amortized over the expected period of benefit and are recorded as an adjustment to transaction price and reduced from revenues. Out of Pocket Expenses Reimbursements of out-of-pocket expenses received from clients are included as part of revenues. Payment terms All contracts entered into by the Company specify the payment terms and are defined for each contract separately. Usual payment terms range between 30 - 60 days. The Company does not have any extended payment terms clauses in existing contracts. Remaining Performance Obligations The Company does not disclose the value of remaining performance obligations by applying the practical expedient provided in Topic 606, for contracts that meet any of the following criteria: i. Contracts with an original expected length of one year or less as determined under ASC 606, ii. |
| Cash and Cash Equivalents and Restricted Cash | The Company considers all highly liquid investments purchased with an original maturity of ninety days or less to be cash equivalents. Pursuant to the Company’s investment policy, surplus funds are invested in highly-rated debt mutual funds, money market accounts and time deposits to reduce its exposure to market risk with regard to these funds. Restricted cash represents amounts on deposit with banks against bank guarantees issued through banks in favor of relevant statutory authorities for equipment imports, deposits for obtaining indirect tax registrations and for demands against pending income tax assessments (refer to Note 8 to the consolidated financial statements for details). These deposits with banks have maturity dates after December 31, 2019 . Restricted cash presented under current assets represents funds held on behalf of clients in dedicated bank accounts. |
| Investments | The Company’s investments consist of time deposits with financial institutions which are valued at cost and approximate fair value. Interest earned on such investments is included in interest income. Investments with original maturities greater than ninety days but less than twelve months are classified as short-term investments. Investments with maturities greater than twelve months from the balance sheet date are classified as long-term investments. The Company's mutual fund investments are in debt and money market funds which invest in instruments of various maturities in India. These investments are accounted for in accordance with the fair value option under Financial Accounting Standard Board Accounting Standards Codification (“ASC”) Topic 825, Financial Instruments |
| Accounts Receivable and Allowance for Doubtful Receivable | Accounts receivable include unbilled accounts receivable which represent revenues on contracts to be billed, in subsequent periods, as per the terms of the related contracts |
| Property and equipment | Property and equipment are stated at cost less accumulated depreciation and impairment. Equipment held under finance leases are capitalized at the commencement of the lease at the lower of present value of minimum lease payments at the inception of the leases or its fair value. Advances paid towards acquisition of property and equipment and the cost of property and equipment not yet placed in service before the end of the reporting period are classified as capital work in progress. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. Depreciation on equipment held under finance leases and leasehold improvements are computed using the straight-line method over the shorter of the asset's estimated useful lives or the lease term. The Company reviews property and equipment for impairment whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Useful Lives Assets: Network equipment and computers 3-5 Software 3-5 Leasehold improvements 3-8 Office furniture and equipment 3-8 Motor vehicles 2-5 Buildings 30 |
| Software Development Costs | The Company capitalizes certain costs related to the development or enhancements to existing software products to be sold, leased or otherwise marketed and / or used for internal use. The Company begins to capitalize costs to develop or enhance software when planning stage efforts are successfully completed, management has authorized and committed project funding, and it is probable that the project will be completed and the software will be used as intended. Costs incurred prior to meeting these criteria, together with costs incurred for training and maintenance, are expensed as incurred and recorded within “general and administrative expenses” in the Company’s consolidated statements of income. The Company exercises judgment in determining the point at which various projects may be capitalized, in assessing the ongoing value of the capitalized costs, and in determining the estimated useful lives over which the costs are amortized. Annual amortization of internally developed software products meant for sale, lease or otherwise marketing is the greater of the amount computed using the ratio that current gross revenues for a product bear to the total of current and anticipated future gross revenues for that product or the straight-line method over the remaining estimated economic life of the software product, generally estimated to be up to 5 years |
| Business Combinations, Goodwill and Other Intangible Assets | ASC Topic 805, Business Combinations, requires that the acquisition method of accounting be used for all business combinations. The guidance specifies criteria as to intangible assets acquired in a business combination that must be recognized and reported separately from goodwill. Contingent consideration is recognized at its fair value on the acquisition date. A liability resulting from contingent consideration is re-measured to fair value as of each reporting date until the contingency is resolved. Changes in fair value are recognized in earnings. These fair value measurements represent Level 3 measurements as they are based on significant inputs not observable in the market. Under ASC 350, Intangibles - Goodwill and Other , all assets and liabilities of the acquired businesses, including goodwill, are assigned to reporting units. Acquisition related costs are expensed as incurred under general and administrative expenses. Goodwill represents the cost of the acquired businesses in excess of the fair value of identifiable tangible and intangible net assets purchased in a business combination. Goodwill is not amortized but is tested for impairment at least on an annual basis, relying on a number of factors including operating results, business plans and estimated future cash flows of the reporting units to which it is assigned. The Company undertakes studies to determine the fair values of assets and liabilities acquired and allocate purchase consideration to assets and liabilities, including property and equipment, goodwill and other identifiable intangibles. The Company examines the carrying value of the goodwill annually in the fourth quarter, or more frequently, as circumstances warrant, to determine whether there are any impairment losses. The Company tests for goodwill impairment at the reporting unit level, as that term is defined in U.S. GAAP. Refer to Note 10 for discussion of the Company's goodwill impairment testing. The Company adopted ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, effective January 1, 2018 in conjunction with our goodwill impairment assessment. The quantitative goodwill impairment test involves a comparison of the fair value of a reporting unit with its carrying amount. The Company estimates the fair value of reporting unit using a combination of the income approach, using discounted cash flow analysis (“DCF model”), and also the market approach, using market multiples for reporting units whereby the fair value is not substantially in excess of carrying value. Under the income approach, fair value is determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. The Company uses its internal forecasts to estimate future cash flows and include an estimate of long-term future growth rates based on its most recent views of the long-term outlook for each business. Actual results may differ from those assumed in our forecasts. Discount rate assumptions are based on an assessment of the risk inherent in the future cash flows of the respective reporting units. The discount rate is mainly based on judgment of the specific risk inherent within each reporting unit. The variables within the discount rate, many of which are outside of the Company’s control, provide the Company’s best estimate of all assumptions applied within the DCF model. The Company uses the “Market approach” to corroborate the results of the income approach. Under the market approach, the Company estimates fair value based on market multiples of revenues and earnings derived from comparable publicly-traded companies with characteristics similar to the reporting unit and comparable market transactions. The estimates used to calculate the fair value of a reporting unit change from year to year based on operating results, market conditions and other factors. Changes in these estimates and assumptions could materially affect the determination of fair value for each reporting unit. Determining fair value requires the use of estimates and exercise of significant judgment, including assumptions about appropriate discount rates, perpetual growth rates, amount and timing of expected future cash flows, market multiples of revenues and earnings and comparable market transactions. These estimates and judgements may not be within the control of the Company and accordingly it is reasonably possible that the estimates and judgments described above could change in future periods. There can be no assurance that operations will achieve the future cash flows reflected in the projections. If the carrying amount of the reporting unit exceeds its fair value, an impairment loss shall be recognized, in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit. Intangible assets acquired in a business combination are initially valued and recognized at fair market value using generally accepted valuation methods appropriate for the type of intangible asset. Intangible assets with definite lives are amortized over the estimated useful lives and are reviewed for impairment, if indicators of impairment arise. The evaluation of impairment is based upon a comparison of the carrying amount of the intangible asset to its fair value, which is calculated using the estimated future undiscounted net cash flows expected to be generated by the asset. If the fair value of the intangible assets is less than the carrying amount of the asset, the asset is considered impaired and an impairment expense is recognized equal to any shortfall in the current period. The Company’s definite lived intangible assets are amortized over their estimated useful lives as listed below using a straight-line method: Customer relationships 3-15 years Leasehold benefits 3-8 years Developed technology 5-10 years Non-compete agreements 1-5 years Trade names and trademarks 3-10 years |
| Investment in Equity Affiliate | Investments in equity affiliate are initially recorded at cost and any excess cost over proportionate share of the fair value of the net assets of the investee at the acquisition date is recognized as goodwill. The proportionate share of net income or loss of the investee is recognized in the consolidated statements of income. The Company periodically reviews the carrying value of its investment to determine if there has been any other than temporary decline in carrying value. The investment balance for an investee is increased or decreased for cash contribution and distributions to or from, respectively |
| Impairment of Long-lived Assets | Long-lived assets to be held and used are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Such assets are required to be tested for impairment if the carrying amount of the assets is higher than the future undiscounted net cash flows expected to be generated from the assets. Determining whether an impairment has occurred typically requires various estimates and assumptions, including determining which undiscounted cash flows are directly related to the potentially impaired asset, the useful life over which cash flows will occur, their amount, and the asset’s residual value, if any. In turn, measurement of an impairment loss requires a determination of fair value, which is based on the best information available. The Company derives the required undiscounted cash flow estimates from its historical experience and its internal business plans. To determine fair value, the Company follows the discounted cash flow approach and uses its internal cash flow estimates discounted at an appropriate discount rate and independent appraisals, as appropriate. The impairment amount to be recognized is measured as the amount by which the carrying value of the assets exceeds their fair value |
| Derivative Financial Instruments | In the normal course of business, the Company uses derivative instruments for the purpose of mitigating the exposure from risk of foreign currency fluctuation associated with forecasted transactions denominated in certain foreign currencies and to minimize earnings and cash flow volatility associated with changes in foreign currency exchange rates, and not for speculative trading purposes. These derivative contracts are purchased adhering to the Company’s policy and are with counterparties that are highly rated financial institutions. The Company hedges forecasted transactions that are subject to foreign exchange exposure with foreign currency exchange contracts that qualify as cash flow hedges. Changes in the fair value of these cash flow hedges are recorded as a component of accumulated other comprehensive income/(loss) ("AOCI"), net of tax, until the hedged transactions occurs. The resultant foreign exchange gain/(loss) upon settlement of cash flow hedges are recorded in the consolidated statements of income along with the underlying hedged item in the same line as either part of “Cost of revenues”, “General and administrative expenses”, “Selling and marketing expenses”, “Depreciation and amortization expense”, as applicable. The Company evaluates hedge effectiveness of cash flow hedges at the time a contract is entered into as well as on an ongoing basis. For hedge relationships that are discontinued because the forecasted transaction is not expected to occur by the end of the originally specified period, any related derivative amounts recorded in equity are reclassified to earnings. The Company uses derivatives instruments consisting of foreign currency exchange contracts to economically hedge intercompany balances and other monetary assets or liabilities denominated in currencies other than the functional currency, against the risk of foreign currency fluctuations associated with remeasurement of such assets and liabilities to functional currency. Changes in the fair value of these derivatives are recognized in the consolidated statements of income and are included in foreign exchange gain/(loss). |
| Borrowings | The Company accounts for convertible notes in accordance with the guidelines established by the ASC 470-20, Debt with Conversion and Other Options. The Company separates the convertible notes into liability and equity components. The Beneficial Conversion Feature ("BCF") of a convertible note, which is the equity component and recorded as additional paid-in capital, is normally characterized as the convertible portion or feature of certain notes payable that provide a rate of conversion that is below market value or in-the-money when issued. The Company records a BCF related to the issuance of a convertible note when issued. If a convertible note is within the scope of the Cash Conversion Subsections and contains embedded features other than the embedded conversion option, the guidance in ASC 815-15, Derivatives and Hedging - Embedded Derivatives (ASC 815-15), is applied to determine if any of those features must be separately accounted for as a derivative instrument. |
| Employee Benefits | Contributions to defined contribution plans are charged to the consolidated statements of income in the period in which services are rendered by the covered employees. Current service costs for defined benefit plans are accrued in the period to which they relate. The liability in respect of defined benefit plans is calculated annually by the Company using the projected unit credit method. Prior service cost, if any, resulting from an amendment to a plan is recognized and amortized over the remaining period of service of the covered employees. The Company includes the service cost component of the net periodic benefit cost in the same line item or items as other compensation costs arising from services rendered by the respective employees during the period. The interest cost, expected return on plan assets and amortization of actuarial gains/loss, are classified in - “Other income, net”. Refer to Note 20 and Note 27 to the consolidated financial statements for details. |
| Stock-Based Compensation | The Company recognizes stock-based compensation expense in the consolidated financial statements for awards of equity instruments to employees and non-employee directors based on the grant-date fair value of those awards. The Company recognizes these compensation costs over the requisite service period of the award. Forfeitures are accounted when the actual forfeitures occur. Under the Company’s 2018 Omnibus Incentive Plan (the “2018 Plan”), which was adopted by the Company's stockholders on June 15, 2018, which replaces and supersedes the 2015 Amendment and Restatement of the Company’s 2006 Omnibus Award Plan (the “ Prior Plan”) and is effective upon the date approved by the Company’s stockholders, the Company grants performance-based restricted stock units (“PRSUs”) to executive officers and other specified employees. 50% of the PRSUs cliff vest based on an aggregated revenue target (“PU”) for a three -year period. The remaining 50% vest based on a market condition (“MUs”) that is contingent on meeting or exceeding the Company's total shareholder return relative to a group of peer companies specified under the program, measured over a three -year performance period. The award recipient may earn up to two hundred percent ( 200% ) of the PRSUs granted based on the actual achievement of both targets. The fair value of each PU is determined based on the market price of one common share of the Company on the day prior to the date of grant, and the associated compensation expense is calculated on the basis that performance targets to receive 100% of the PUs are probable of being achieved. The compensation expense for the PUs is recognized on a straight-line basis over the service period, which is through the end of the third year. Over this period, the number of shares that will be issued will be adjusted upward or downward based upon the probability of achievement of the performance targets. The final number of shares issued and the related compensation cost recognized as an expense will be based on a comparison of the final performance metrics to the specified targets. The expense related to the unvested PUs as of December 31, 2019 was based on the Company's assessment of performance criteria for these grants that would most likely be met during the respective years of vesting against the targeted performance level. |
| Income Taxes | The Company accounts for income taxes using the asset and liability method of accounting for income taxes. The Company calculates and provides for income taxes in each of the tax jurisdictions in which it operates. The deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying values of existing assets and liabilities and their respective tax bases and all operating losses carried forward, if any. Deferred tax assets and liabilities are measured using tax rates expected to apply to taxable income in the years in which the applicable temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates or tax status is recognized in the statements of income in the period in which the change is identified. Deferred tax assets are reduced by a valuation allowance if, based on available evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. |
| Financial Instruments and Concentration of Credit Risk | Financial Instruments. For certain financial instruments, including cash and cash equivalents, short-term investments (except investment in mutual funds, as disclosed in Note 16), restricted cash, accounts receivable, accounts payable, accrued expenses, other current liabilities and outstanding revolver credit, recorded amounts approximate fair value due to the relatively short maturity periods and/or timing of repayments of such instruments. Concentration of Credit Risk . Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents, time deposits, mutual fund investments, accounts receivable and derivative financial instruments. By their nature, all such financial instruments involve risks including the credit risks of non-performance by counterparties. Pursuant to the Company’s investment policy, surplus funds are maintained as cash equivalents and are invested in highly-rated mutual funds, money market accounts and time deposits, placed with highly rated financial institutions to reduce its exposure to market risk with regard to these funds. The Company’s exposure to credit risk on account receivable is influenced mainly by the individual characteristic of each customer and the concentration of risk from the top few customer s. |
| Leases | The Company determines if an arrangement is a lease at inception of the contract. Operating leases are recorded in "operating lease right-of-use ("ROU") assets", "current portion of operating lease liabilities" and "operating lease liabilities, less current portion" in the Company's consolidated balance sheets. Finance leases are recorded in "property and equipment", "current portion of finance lease liabilities" and "finance lease liabilities, less current portion" in the Company's consolidated balance sheets. ROU assets represent the Company’s right to use an underlying asset during the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. For leases in which the rate implicit in the lease is not readily determinable, the Company uses its incremental borrowing rate based on the information available at commencement date for determining the present value of lease payments. Lease term includes the effects of options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for operating lease arrangements is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are accounted for separately. The Company accounts for modification as a separate contract when it grants an additional right of use not included in the original lease and the increase is commensurate with the standalone price for the additional right of use, adjusted for the circumstances of the particular contract. Modifications which are not accounted for as a separate contract are reassessed as of the effective date of the modification based on its modified terms and conditions and the facts and circumstances as of that date. On January 1, 2019, the date of initial application, the Company adopted, Leases (Topic 842), using the modified retrospective method. The modified retrospective method provides a method of recognizing those leases which had not expired as of the date of adoption of January 1, 2019. The prior period consolidated financial statements have not been retrospectively adjusted and continues to be reported under Topic 840. The Company elected the practical expedient permitted under the transition guidance under Topic 842, which amongst other matters, allowed the Company (i) not to apply the recognition requirements to short-term leases (leases with a lease term of 12 months or less), (ii) not to reassess whether any expired or existing contracts are or contain leases, (iii) not to reassess the lease classification for any expired or existing leases, and (iv) not to reassess initial direct costs for any existing leases. The adoption resulted in the recognition of ROU assets of $80,328 (net of deferred rent of $8,626 ) and lease liabilities of $88,954 for operating leases as of January 1, 2019. The Company's accounting for finance leases remained substantially unchanged. The adoption had no impact on opening balance of retained earnings. Refer to Note 21 to the consolidated financial statements for details. |
| Government Grants | Government grants related to income are recognized as a reduction of expenses in the consolidated statements of income when there is a reasonable assurance that the entity will comply with the conditions attached to the grant and that the grants will be received |
| Earnings per share | Basic earnings per share is computed using the weighted average number of common shares outstanding, adjusted for outstanding shares that are subject to repurchase during the period. Diluted earnings per share is computed using the weighted average number of common and dilutive common equivalent shares outstanding during the period. For the purposes of calculating diluted earnings per share, the treasury stock method is used for stock-based awards except where the results would be anti-dilutive |
| Commitments and contingencies | Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties, and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Legal costs incurred in connection with such liabilities are expensed as incurred |
| Recent Accounting Pronouncements | In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses , which requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The new guidance replaces the existing incurred loss impairment model with an expected loss model which requires the use of forward-looking information to calculate credit loss estimates. These changes will result in earlier recognition of credit losses. The allowance for credit losses is a valuation account that is to be deducted from the amortized cost of the financial asset(s) so as to present the net carrying value at the amount expected to be collected on the financial asset. The new guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption as of the fiscal years beginning after December 15, 2018 was permitted. The amendment should be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the effective date to align credit loss methodology with the new standard. Adoption of the ASU will result in immaterial impact to equity as of January 1, 2020 with a corresponding offset to accounts receivable. The impact of adoption of this guidance did not have a material effect on the Company's accounting policies, processes, and systems. In August 2018, FASB issued ASU No. 2018-13, Fair Value Measurement ("Topic 820"): Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this ASU changes the disclosure requirements on fair value measurements in Topic 820 by prescribing new, elimination and modification of disclosure requirements, based on the concepts in the Concepts Statement, including the consideration of costs and benefits. The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. An entity was permitted to early adopt either the entire standard or only the provisions that eliminate or modify requirements. The adoption of this ASU effective January 1, 2020 is not expected to have any material effect on the Company’s consolidated financial statements. In August 2018, FASB issued ASU No. 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General ("Subtopic 715-20"): Changes to the Disclosure Requirements for Defined Benefit Plans. The amendments in this ASU remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. The amendments in this ASU are effective for fiscal years beginning after December 15, 2020. Early adoption is permitted. The adoption of this ASU is not expected to have any material effect on the Company’s consolidated financial statements. In August 2018, FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40"): This ASU aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). Accordingly, the ASU requires an entity (customer) in a hosting arrangement that is a service contract to follow the guidance in FASB Accounting Standard Codification Subtopic 350-40 on internal-use software to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The ASU 2018-15 also provides guidance on amortization and impairment of any costs capitalized, along with new presentation and disclosure requirements. The new guidance is effective for fiscal years beginning after December 15, 2019. Early adoption was permitted and both prospective and retrospective transition methods are allowed. The adoption of this ASU did not have any material effect on the Company’s consolidated financial statements. In April 2019, FASB issued ASU No. 2019-04, Codification Improvements to Financial Instruments-Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Financial Instruments: Targeted Transition Relief (Topic 825). The amendments clarify the scope of the credit losses standard and address issues related to accrued interest receivable balances, recoveries, variable interest rates and prepayments, among other things. With respect to hedge accounting, the amendments address partial-term fair value hedges, fair value hedge basis adjustments, and certain transition requirements, among other things. With respect to recognizing and measuring financial instruments, the amendment in ASU address the scope of the guidance, the requirement for remeasurement under ASC 820 when using the measurement alternative, certain disclosure requirements and which equity securities have to be remeasured at historical exchange rates. This ASU is effective for public business entities for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year. Early adoption is permitted. The adoption of this ASU is not expected to have any material effect on the Company’s consolidated financial statements. In May 2019, FASB issued ASU No. 2019-05, Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief. This ASU provide entities with the option to irrevocably elect the fair value option, on an instrument-by-instrument basis in accordance with Subtopic 825-10, for certain financial instruments that are within the scope of Subtopic 326-20, upon adopting Topic 326. The fair value option election does not apply to held-to-maturity debt securities. The amendments in this Update provide entities with targeted transition relief that is intended to increase comparability of financial statement information for some entities that otherwise would have measured similar financial instruments using different measurement methodologies. This ASU is effective for public business entities for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year. Early adoption is permitted. The adoption of this ASU is not expected to have any material effect on the Company's consolidated financial statements. (x) Recently Adopted Accounting Pronouncements In February 2016, FASB issued ASU No. 2016-02, Leases (Topic 842), which requires the identification of arrangements that should be accounted for as leases. Lease arrangements exceeding a twelve months term should be recognized as assets with corresponding liabilities on the balance sheet of the lessee. This ASU requires recognition of an ROU asset and lease obligation for those leases classified as operating leases under Topic 840, while the income statement will reflect lease expense for operating leases. The balance sheet amounts recorded for existing operating leases at the date of adoption of this ASU must be calculated using the applicable incremental borrowing rate. The Company adopted Topic 842 as of January 1, 2019 using the modified retrospective method provided by ASU 2018-11. The adoption had a material impact on the Company's consolidated balance sheets, but did not have a material impact on the Company's consolidated income statements and consolidated statements of cash flows. The most significant impact was the recognition of ROU assets and lease liabilities for operating leases, while the Company's accounting for finance leases remained substantially unchanged. Refer to Note 21 to the consolidated financial statements for details. In July 2018, FASB issued ASU No. 2018-11, Leases (Topic 842), which provide entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with current GAAP (Topic 840, Leases). The Company adopted Topic 842 as of January 1, 2019 using this ASU. Refer to Note 21 to the consolidated financial statements for details. |
